Compressor installation (1) with a compressor element (2), with an outlet (9) with an outlet line (8), and with a dryer (2), that is provided with a drying section (14) and a re- generation section (15), wherein the drying section (14) is provided with a first inlet (16a) and a first outlet (16b), wherein the first inlet (16a) is connected to the outlet line (8), wherein the regeneration section (15) is provided with a second inlet (17a) and a second outlet (17b), wherein a regeneration line (18) is provided between the second inlet (17a) and a first point (19) of the outlet line (8), wherein at the second outlet (17b) a return line (20) is connected that connects the second outlet (17b) to a second point (21) on the outlet line (8) downstream of the first point (19), characterized in that, in the return line (20), a primary portion (27) of a heat exchanger (28) is incorporated, wherein a secondary portion (29) of the heat exchanger (28) is incorporated in an oil circuit (10) of the compressor element.
According to an embodiment the invention comprises a computer- implemented method of remotely managing a compressed air distribution system (107) by means of a control system (102, 208, 308, 408) of one or more compressors (103, 207, 307, 407) wherein the method is iteratively repeated, comprising the steps of sharing respective statuses by the one or more compressors (103, 207, 307, 407) with the control system (102, 208, 308, 408) via a shared communication bus (201, 301), controlling the one or more compressors (103, 207, 307, 407) in parallel via the shared communication bus (201, 301) based on the statuses and on a required pressure and/or flow rate, and when a first device is connected to the compressed air distribution system (107), detecting the first device, integrating the first device, wherein the integration is carried out simultaneously with the parallel control (310, 410) of the one or more compressors (209, 309, 409).
The non-lubricated compressor (10) for compressing a gas, comprises: a stationary stator (12) with a housing (18) comprising a rotor cavity (20) delimited by a bottom wall (22), a top wall (24), and a lateral wall (26) connecting said bottom wall (22) and said top wall (24), a rotor element (14) arranged for rotation about an axis (z) within the rotor cavity (20) for compressing a gas therein, a self-supporting sealing element (16) arranged within the rotor cavity (20), wherein the sealing element (16) is made of an abradable carbon material, and comprises a wall portion (34) arranged on an inner surface of the lateral wall (26) of the rotor cavity (20).
F01C 1/22 - Rotary-piston machines or engines of internal-axis type with equidirectional movement of co-operating members at the points of engagement, or with one of the co-operating members being stationary, the inner member having more teeth or tooth-equivalents than the outer member
F01C 21/10 - Outer members for co-operation with rotary pistons; Casings
4.
MODEL PREDICTIVE CONTROL OF A COMPRESSED AIR SYSTEM
The present invention is directed to a computer implemented method for controlling a finite set of components which are fluidly connected to a common compressed air distribution system, the method comprising iteratively repeating the steps of: - receiving prediction data for said compressed air distribution system; - receiving characterising data for each component of said set of components; - determining one or more sets of continuously differentiable functions, wherein each of said sets of functions represents a unique sequence of operation of the components in said set of components; - selecting an optimal set of functions from said one or more sets of continuously differentiable functions; wherein the unique sequence of operation represented by said optimal set meets said prediction data; - deriving configuration data for said set of components from said optimal set of functions; - configuring each component of said set of components based on said configuration data.
Compressor assembly (1) comprising a motor (2) having a motor shaft (7) which drives at least one compressor rotor (5, 6) of a compressor element (3) as well as an oil-pump (18, 63), wherein a compressor rotor (6) comprises a compressor rotor part (35) which is mounted on a compressor rotor shaft (33) which is connected to the motor shaft (7) by means of a direct coupling (40) so to form a composed driving shaft (45) and wherein the oil-pump (18) is mounted directly on the composed driving shaft (45) or on another compressor rotor shaft (32).
F04C 18/10 - Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member
6.
COMPRESSOR ASSEMBLY COMPRISING A MOTOR DRIVING ONE OR MORE COMPRESSOR ROTORS AND METHOD FOR FABRICATING A HOUSING PART OF SUCH A COMPRESSOR ASSEMBLY.
Compressor assembly (1) comprising a motor (2) which drives one or more compressor rotors (11, 12) comprising an oil circulation system (33) comprising an oil reservoir (47), an oil cooler (48) and an oil filter (50), an oil-pump (32) for circulating oil (49) from the oil reservoir (47) to components to be cooled and/or lubricated and back to the oil reservoir (47) wherein the motor (2) has a motor jacket (51) with channels (52) extending in axial directions (AA', BB', CC', DD',...) parallel to the axial direction (XX' ) of a motor shaft (4) in which oil (49) of the oil circulation system (33) circulates.
F04C 18/16 - Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons with helical teeth, e.g. chevron-shaped, screw type
F04C 29/00 - Component parts, details, or accessories, of pumps or pumping installations specially adapted for elastic fluids, not provided for in groups
Regeneration means for regenerating a drying agent in a drying device (1) for compressed gas, which regenerating means (9) comprise a regeneration line (10) connected to a regeneration inlet (11) of the drying device (1), which regenerating line (10 connects said regeneration inlet (11) to an outlet (13) of a blower (12) for the supply of a regeneration gas, and wherein heating means (14) are provided between the outlet (13) of said blower (12) and the regeneration inlet (11 for heating up the regeneration gas, characterized in that between the outlet (13) of said blower (12), on the one hand, and said heating means (14), on the other hand, an additional vessel (20) with drying agent is provided for drying the regeneration gas.
B01D 53/04 - Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
Device for drying compressed gas having at least two vessels (6a, 6b) containing a regenerable drying agent and an controllable valve system (7) with a first valve block (8a) and a second valve block (8b), wherein the device (1) is further provided with a first regeneration line (9a) with heating means (10) and a second regeneration line (9b) for discharging saturated regeneration gas, wherein said regeneration lines (9a, 9b) are connected to a different valve block (8a, 8b), wherein in the first regeneration line (9a) between a blow-off opening (13) or blower (12) and said heating means (10) an additional vessel (15) with a regenerable drying agent is incorporated.
An element for compressing or expanding a gas comprising - a rigid housing (2) containing an internal chamber; - a rotor (3a, 3b) situated in the internal chamber and comprising a rotor shaft (4a, 4b); - one or more bearings (7) in which the rotor shaft (4a, 4b) is bearing- supported, wherein the rotor (3a, 3b) with its rotor shaft (4a, 4b) is rotatably mounted with respect to the housing (2) by means of these bearings (7), wherein the rotor (3a, 3b) is mounted with one or more clearances with respect to a wall (5) of the internal chamber, characterized in that the element (1) is provided with a separate yielding component (10) which is positionally adjustable with respect to the housing (2) in such a way that at least one of the clearances can be acted upon, wherein the separate yielding component (10) is not directly attached to the rotor (3a, 3b).
F04C 18/16 - Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons with helical teeth, e.g. chevron-shaped, screw type
F01C 1/02 - Rotary-piston machines or engines of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
Turbomachine, comprising a shaft (10) with a first end and an impeller (20) arranged at and coupled to the first end of the shaft (20), arranged together to rotate about an axis of rotation (1). The turbomachine comprises a friction ring (30) clamped between an axial surface (13) at the first end of the shaft (10) and an opposite axial surface (23) of the impeller (20). The friction ring (30) is preferably provided with a surface with hard particles, e.g. diamond or ceramic, to increase friction between the clamped parts and to interlock the clamped parts.
F16D 1/076 - Couplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end by clamping together two faces perpendicular to the axis of rotation, e.g. with bolted flanges
F01D 5/04 - Blade-carrying members, e.g. rotors for radial-flow machines or engines
Multistage centrifugal compressor provided with a shaft (2) with blades (3), which is mounted in a housing (4) with bearings (7), characterised in that at least one bearing (7) is provided with a bearing damper element (10) consisting of a ring (11) arranged between the shaft (2) and the bearing (7), wherein the ring (11) comprises slots (12) through the thickness of the ring (11) in the axial direction (X-X') and at a distance from the radially-directed inner and outer surface (13a, 13b) of the ring (11), wherein the slots (12) are at least partially overlapping, wherein: A) the slots (12) are filled with a liquid, wherein the axial annular surfaces (16) are dosed off by means of a protective cap (17); or: B) at least one of the annular surfaces (16) is provided with a viscoelastic material (20) or hysteretic damping material (20) sandwiched between two concentric discs (21), which discs (21) are attached to the ring (11); or: C) the slots (12) are filled with a viscoelastic material.
Device for drying compressed gas, having an inlet (2) for compressed gas to be dried and an outlet (3) for dried compressed gas, which device (1) comprises at least two vessels (4a, 4b) with arranged therein a regenerable drying agent (5) and a controllable valve system (7) connecting said inlet (2) and outlet (3) to an inlet (8) and outlet (9) of said vessels (4a, 4b), wherein said valve system (7) is such that always at least one vessel (4b) is being regenerated while the other vessels (4a) dry the compressed gas, wherein by controlling the valve system (7), the vessels (4a, 4b) are each in turn successively regenerated, wherein the device (1) is provided with a regeneration conduit (13) splitting off a portion of the dried compressed gas as a regeneration gas and feeding it into the at least one vessel (4b) that is being regenerated, for the regeneration of said at least one vessel (4b) that is being regenerated, characterized in that the regeneration conduit (13) at least partly extends through an opening (14) provided thereto in the vessels (4a, 4b) for regeneration gas into the vessels (4a, 4b) such that the regeneration gas can be split off from the vessel (4a) that dries the compressed gas, and in that in the vessels (4a, 4b), a heater (16a, 16b) is provided situated in the regeneration conduit (13) for heating the regeneration gas before the regeneration gas is fed through the drying agent (5) into the vessel (4b) that is being regenerated.
According to an embodiment, a computer-implemented method for controlling a compressed air or gas system (113) is disclosed comprising the steps of estimating (202) a current state, predicting (203) a future process variable profile (225) based on the current state (211), sampling (204) the future process variable profile by a sampling method having a sampling frequencies based on a volume (107) of the compressed air or gas system (113),transforming (205) by a model predictive control, MFC, method the sampled future process variable profile and the current state into an action profile and a state profile, and instructing the compressors to perform the actions in accordance with the action profile thereby controlling the compressed air or gas system (113).
G05B 13/04 - Adaptive control systems, i.e. systems automatically adjusting themselves to have a performance which is optimum according to some preassigned criterion electric involving the use of models or simulators
14.
DEVICE AND METHOD TO EXTRACT WATER FROM HUMID AMBIENT AIR
Device for extracting water from humid ambient air, the device (1) comprising a conduit (2) in which successively is incorporated : a compressor (3) to compress the humid ambient air into compressed ambient air, a first condenser (5) to dry the compressed ambient air into dry compressed air, an expansion valve or expander (7) for expanding the dry compressed air into dry expanded air and a second condenser (8), characterized in that the first condenser (5) is further configured to direct the humid ambient air through it as coolant for extracting water from the compressed ambient air in a first stage via an outlet (12), and wherein the second condenser (8) is configured to direct the dry expanded air through it as coolant for extracting the water from the humid ambient air in a second stage by means of an outlet (15).
Device for adsorbing a gas from a gas mixture to be treated, having an inlet (2) for gas to be treated and an outlet (3) for treated gas, said device (1) comprising at least two vessels (4a, 4b) filled with a regenerable adsorbent (5) and an adjustable valve system (6) connecting said inlet (2) and outlet (3) to said vessels (4a, 4b), whereby the adjustable valve system (6) is such that at least one vessel (4a) will treat compressed gas while the other vessel (4b) is regenerated, whereby by adjusting the valve system (6) the vessels (4a, 4b) each in turn treat compressed gas sequentially, thereby characterized in that the adjustable valve system (6) is assembled in a single valve block (12).
? filter device for separating a liquid mixture, Comprising a vessel (2) with a first filter element (14), whereby the vessel (2) comprises a flat vessel base surface (6) and a vessel mantle surface (7), comprising a housing (3, 3a, 3b) with a second filter element, whereby the housing (3, 3a, 3b) comprises a flat housing base surface (11) and a housing mantle surface (12), whereby the vessel mantle surface (7) comprises a re-entrant section (15) forming a recess, whereby a mating side of the housing mantle surface (12) is configured to fit into the recess, whereby the re-entrant section (15) and the mating side are provided with connection means (16) to fluidly connect the first filter element (14) with the second filter element, characterised in that the re-entrant section (15) is extending front the vessel base surface (6), and that the vessel base surface (6) and the housing base surface (11) are parallel and level in the same plane when the mating side of the housing mantle surface (12) is fitted into the recess formed by the re-entrant section (15),
Gear wheel that is provided with spokes (17) which extend between a rim (16) supporting a gear mesh (15) and a corresponding gear hub (18), whereby free spaces (19) are located between the spokes (17) which extend between the rim (16) and the gear hub (18), characterised in that at least one of said free spaces (19) is filled with a block (20) made of a rigid, incompressible material, whereby between the gear wheel (10) on the one hand and the block (20) on the other hand a viscoelastic material (21) is located.
F16F 15/14 - Suppression of vibrations in rotating systems by making use of members moving with the system using freely-swinging masses rotating with the system
18.
DRYING DEVICE AND METHOD FOR DRYING COMPRESSED GAS
Method for drying compressed gas by means of a drying device with an inlet and an outlet comprising at least two vessels filled with a regenerable desiccant and a controllable valve system, consisting of a first and a second valve block connecting the inlet, respectively the outlet to the vessels, the valve system is being regulated as such that one vessel will dry compressed gas, while the other vessel is successively regenerated and cooled. The method comprises a first and a second cooling cycle, wherein the first cooling cycle consists of passing ambient air through the vessel to be cooled and the second cooling cycle consists of branching off, expanding and sending dried compressed gas through the outlet to be branched off and then blowing it off through the vessel to be cooled, using either the first or the second cooling cycle, or both, depending on predetermined conditions.
B01D 53/04 - Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
Method for drying compressed gas by means of a drying device (1) with an inlet (7) for the compressed gas to be dried and an outlet (8) for the dried compressed gas, wherein the drying device (1) comprises at least two vessels (2) filled with a regenerable desiccant (3) and an adjustable valve system (4) consisting of a first valve block (5) and a second valve block (6) that connects the aforementioned inlet (7), respectively outlet (8), to the aforementioned vessels (2), wherein the adjustable valve system (4) is being regulated as such that at least one vessel (2) will dry compressed gas, while the other vessel (2) will be regenerated and cooled successively, wherein by regulation of the valve system (4) the vessels (2) will each in turn dry compressed gas, characterized in that the method consists of calculating the time period (tads) during which a vessel (2) dries compressed gas, calculated on the basis of a formula tads = A* B.
B01D 53/04 - Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
Compressor device (2) provided with at least one compressor element (3) and a drive (4) for the compressor element (3), characterized in that all bearings (6) of at least one shaft in the compressor device (1) configured to carry static axial load, I provided with a bearing damper (9) which comprises a coupling element (10) and at least one damping element (11) made of damping elastomer material, wherein the bearing damper (9) is installed with the aid of the coupling element (10) ] between a bearing (6) of the compressor device (1) and the housing (2) of the compressor device (1), wherein the coupling element (10) allows little or no movement of the bearing (6) relative to the housing (2) the radial direction compared to the axial direction and wherein the damping element (11) is configured to dampen the axial movement of the bearing (6) relative to the housing (2).
F01D 25/16 - Arrangement of bearings; Supporting or mounting bearings in casings
F04C 18/16 - Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons with helical teeth, e.g. chevron-shaped, screw type
F16C 19/06 - Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly with a single row of balls
21.
DRYER FOR COMPRESSED GAS, COMPRESSOR INSTALLATION PROVIDED WITH A DRYER AND A METHOD FOR DRYING COMPRESSED GAS.
Dryer for compressed gas, comprising a pressure vessel containing a drying zone and a regeneration zone, a drum within the rotation symmetrical part, equipped with a regenerable drying agent; driving means for rotating the aforementioned drum so that the drying agent is successively conducted through the drying zone and the regeneration zone, an inlet for the supply of the compressed air to be dried to the drying zone, an outlet for the removal of the dried compressed gas, and a first connection line for branching off of a partial stream of the dried compressed gas and transfer of this partial stream to the regeneration zone. The first connection line is equipped with a heating unit for the heating of the partial stream branched off for the regeneration. The first connection line and the heating unit are located within the pressure vessel.
B01D 53/06 - Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols by adsorption, e.g. preparative gas chromatography with moving adsorbents
22.
DRYER FOR COMPRESSED GAS, COMPRESSOR INSTALLATION PROVIDED WITH A DRYER AND A METHOD FOR DRYING COMPRESSED GAS
Dryer for a compressed gas, consisting of a pressure vessel containing a drying zone and a regeneration zone, a drum provided with regenerable drying agent, an inlet for the supply of the compressed gas to be dried to the drying zone, an outlet for the expulsion of dried compressed gas, a first connection line for branching off a partial stream of the compressed gas to be dried or the dried compressed gas and conducting this partial stream to the regeneration zone, adjustable means provided for the combination of the partial stream with the supply stream and regulation of the flow from the partial stream with regard to the supplied stream, at least one sensor for measuring at least one measurement value with regard to the function of the dryer, a control unit for the processing of the at least one measurement value and the installation of a control signal on the adjustable means.
B01D 53/06 - Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols by adsorption, e.g. preparative gas chromatography with moving adsorbents
Drying device for drying compressed gas which comprises at least two vessels (2) with regenerable desiccant (3) and an adjustable valve system (4) which is such that,a vessel (2) can dry compressed gas, while the other vessel (2) is being regenerated, whereby by regulating the valve system (4), the vessels (2) can each in turn dry gas, characterised in that the drying device (1) is provided with a regeneration pipe (10) for supplying a regeneration gas which runs from an outlet (8) for dried gas to the valve system (4), and in which heating means (11) are provided, whereby the drying device (1) is provided with a return pipe (17) for returning the regeneration gas to an inlet (7), running from the valve system (4) to an inlet pipe (13) which connects to said inlet (7) and in which a venturi ejector (18) is mounted, to which said return pipe (17) is connected, and that regulating means are provided for regulating the flow of gas going through the venturi ejector (18).
Drying device comprising a drying medium with a predetermined number of drying segments which extend adjacently of each other and are associated with at least one opening at each of a first connecting end and a second connecting end, wherein the predetermined number is greater than six and wherein each connecting end comprises first and second complementary concentric elements which are rotatable relative to each other round an axis, wherein the openings are provided in the first concentric elements along a rotation ring around the axis, wherein the second concentric elements each delimit at least two channels which open at the position of said rotation ring, so that corresponding channels of the first and second connecting end are connected to each other via the openings and the drying segments in order to allow a first airflow and a second airflow through the drying device.
F24F 3/14 - Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by dehumidification
25.
COMPRESSOR INSTALLATION AND METHOD FOR DELIVERING A COMPRESSED GAS
Compressor installation with a liquid-injected compressor device (2) with a compressor element (3) with an outlet pipe (5) connected to an outlet {6} of the compressor element (3), with a liquid separator (8) in the outlet pipe (5) which comprises an inlet. (9a) and an outlet (9b) for compressed gas and an outlet (10) for separated liquid and with a dryer (12) connected to said outlet pipe {5} which uses a desiccant (14) for drying compressed gas of the compressor device (2), whereby the dryer (12) is provided with a drying section (13b) and a regeneration section (13a) with an entry (19a) and an exit. (19b) for regeneration gas, whereby a regeneration pipe (20) is connected to the entry (19a) and whereby a heat exchanger (21) is provided in the regeneration pipe (20) with a primary section (22a) through which the regeneration gas is guided, characterised in that a secondary section (22b) of the heat exchanger (21) is mounted in the compressor device (2) and that the compressor installation (1) is provided with means (23) to regulate the amount of liquid injected in the compressor element (3).
Non-lubricated system (100; 200; 300) for pumping a gas, comprising a stationary stator with a housing (120; 220; 320) comprising a rotor cavity (210; 310) and at least one rotatable rotor element (101, 102) incorporated within the rotor cavity, where the stator further comprises at least one self-supporting sealing element (121, 131; 221, 231; 321, 331; 531; 631), incorporated within the rotor cavity between an end face of at least one of the rotor elements and an interior wall of the housing to form a seal along the corresponding end face. At least one self-supporting sealing element is provided with an abradable coating (122, 132; 222; 232; 322, 332; 501; 601) on at least one side facing the rotor.
F04C 18/16 - Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons with helical teeth, e.g. chevron-shaped, screw type
F04C 15/00 - Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups
F04C 27/00 - Sealing arrangements in rotary-piston pumps specially adapted for elastic fluids
Cylindrical symmetric volumetric machine, which machine (1) comprises a housing (2) with two co-operating rotors (6a, 6b) therein, namely an outer rotor (6a) mounted rotatably in the housing (2) and an inner rotor (6b) mounted rotatably in the outer rotor (6a), whereby a compression chamber (8) is located between the rotors (6a, 6b), which will move by rotation of the rotors (6a, 6b) from the inlet side (9a) of the rotors (6a, 6b) to the outlet side (9b) of the rotors (6a, 6b), characterised in that the inlet side (9a) of the outer rotor (6a) is provided with a ventilator (12), to supply air to the compression chamber (8).
F04C 2/107 - Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member with helical teeth
Cylindrical symmetric volumetric machine, which machine (1) comprises a housing (2) with an inlet opening (3) and an outlet opening (4), with two co-operating rotors (6a, 6b) in the housing (2), namely an outer rotor (6a) which is mounted rotatably in the housing (2) and an inner rotor (6b) which is mounted rotatably in the outer rotor (6a), whereby liquid is injected in the machine (1), characterised in that at the outlet opening (4) on the level of the inner rotor (6b) and outer rotor (6a) a liquid separation takes place, whereby the separated liquid ends up in the machine (1) again, and in that the outer rotor (6a) has an axial extension (17) on the level of the outlet opening (4) which extends around this outlet opening (4) almost up against the housing (2) such that a space (19) is located between the axial extension (17) and the housing (2).
F04C 2/10 - Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member
Cylindrical symmetric volumetric machine (1), which machine (1) comprises two cooperating rotors (6a, 6b), namely an outer rotor (6a) which is rotatably mounted in the machine (1; and an inner rotor |6h} which is rotatably mounted in the outer rotor (6a), whereby the machine {1} is provided with an electric motor (15) with a motor rotor -16; and a motor stator {17} to drive the outer and inner rotor {6a, 6b}, characterised in. that the electric motor (IS) is mounted around the outer rotor {6a}, whereby the motor stator f.1.7} is directly driving the outer rotor {6a), and whereby the electric motor (15) extends along only a part of the length (L) of the outer rotor (6a5 and the inner rotor : 6b 5., whereby the motor (15) is located at an end (9b) of the inner rotor (6b) -with a smallest diameter (D).
F04C 2/107 - Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member with helical teeth
30.
DEVICE AND METHOD FOR DRYING A MOIST COMPRESSED GAS AND A COMPRESSOR INSTALLATION PROVIDED WITH SUCH A DEVICE.
Device to dry a damp compressed gas, whereby the device (2) is provided with a dryer that is provided with a liquid desiccant and configured to bring compressed gas in contact with the aforementioned desiccant that is capable of absorbing moisture from the compressed gas, characterised in that the dryer is a membrane dryer (11); the device (2) to dry compressed gas contains a circuit (20) in which the aforementioned liquid desiccant is placed and means to allow the circulation of the desiccant in the circuit (20), consecutively through the membrane dryer (11) with a membrane (13) that forms a partition between the compressed, gas on one side and the liquid desiccant on the other side of the membrane (13), whereby the membrane (13) is impermeable or virtually impermeable to the gas in the compressed gas but selectively permeable to the moisture in the compressed gas; a heat exchanger (29} to heat up the liquid desiccant; a regenerator (22) used to remove at least partially the moisture absorbed in the liquid desiccant before this is returned through the membrane dryer (11) for a following cycle, whereby the regenerator (22) is formed by a housing (23) through which the liquid desiccant with the moisture absorbed therein is guided in moisture- transfer contact with a flushing agent that is simultaneously guided through the housing (23) and is capable of absorbing moisture from the liquid desiccant upon contact; and the circuit (20) is provided with a closable bypass (45) between a branching point in the circuit downstream from the regenerator (22) and upstream from the membrane dryer (11) and a confluence point in the circuit downstream from the membrane dryer (11) and upstream from the regenerator (22).
Compressor or vacuum pump provided with a transmission. Compressor provided with a compressor element (2) with a driven shaft (3) and a motor (3) with a drive shaft (13) to drive the compressor element (2), said compressor (1) further being provided with a transmission (4) between said drive shaft (13) and said driven shaft (9), which transmission (4) comprises a housing (10) and at least a driven gearwheel (11) that is mounted on the driven shaft (9) and a drive gearwheel (14) that is mounted on a drive shaft (13), characterised in that the housing (10) comprises two separated chambers (20, 22), i.e. a first chamber (20) that is connected to the driven shaft (9) and a second chamber (22) which is separate from the first chamber (20), whereby the first chamber (20) is connected via a channel (21) with the second chamber (22), whereby around the drive gearwheel (14) or driven gearwheel (11) the second chamber (22) is formed, whereby the form of the second chamber (22) is such that when the gearwheel in question (11, 14) rotates, a gas flow is created around this gearwheel (11, 14) which causes a negative pressure in the channel (21) by the venturi effect. Figure 1.
The invention relates to a compressor, comprising a compressor element with a driven shaft, a motor with a drive shaft to drive the compressor element, and a transmission between the drive shaft and the driven shaft. The transmission comprises a housing and a driven gearwheel mounted on the driven shaft and a drive gearwheel mounted on a drive shaft, wherein the housing comprises a wall and first and second separated chambers. The first chamber is connected to the driven shaft. The second chamber is connected via a channel with the second chamber and is formed around the gearwheel. In use, when the gearwheel rotates, the second chamber allows generation of a gas flow around the gearwheel for causing a negative pressure in the channel by venturi effect.
The present invention is directed to a device for separating liquid from a gas stream within a liquid injected compressor, said device comprisinq a first vessel comprising a first bottom plate, a first lateral wall comprising an inlet fluidly connected with a compressed gas outlet and a lid comprising an outlet, the device further comprising: - a first separation means; - a second separation means; - a third separation means; whereby the device further comprises - an inlet channel being in fluid cornmunication with said inlet, said inlet channel comprising a top panel and a botton panel, whereby at least said top panel is creating a slope, having the highest point onto the first lateral wall and the lowest point at the opposite end.
B01D 45/02 - Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by utilising gravity
B01D 45/12 - Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by centrifugal forces
B04C 5/28 - Multiple arrangement thereof for parallel flow
F04C 29/00 - Component parts, details, or accessories, of pumps or pumping installations specially adapted for elastic fluids, not provided for in groups
OIL CIRCUIT, OIL-FREE COMPRESSOR PROVIDED WITH SUCH OIL CIRCUIT AND A METHOD TO CONTROL LUBRICATION AND/OR COOLING OF SUCH OIL-FREE COMPRESSOR VIA SUCH OIL CIRCUIT
Oil circuit for lubrication and cooling of an oil-free compressor (1) comprising a motor (4) with a variable speed and a compressor element (2) driven by said motor (4), - whereby this oil circuit (5) is provided with an oil reservoir (10) with oil (11) and a rotary oil pump (13) configured to drive oil (11) from the oil reservoir (10) through an inlet channel (23) upstream the rotary oil pump (13) to the compressor element (2) and/or the motor (4) via an oil pipe (12); - whereby this rotary oil pump (13) is provided with a rotor (26) mounted on a rotation shaft (27), whereby this rotary oil pump (13) has a swept volume, and whereby this rotary oil pump (13) is driven by the motor (4) of the compressor element (2); - whereby the oil circuit (5) is further provided with a return pipe (19) configured to guide oil (11) from the compressor element (2) and/or the motor (4) back to the oil reservoir (10); - whereby the oil circuit (5) is further provided with a bypass pipe (15) and a pressure- actuated bypass valve (14) which are configured to directly guide a portion of the oil (11) between the rotary oil pump (13) and the compressor element (2) and/or the motor (4) back to the oil reservoir (10) without this portion of the oil (11) passing through the compressor element (2) and/or the motor (4) during its way back to the oil reservoir (10); and - whereby the oil circuit (5) is further provided with an oil cooler (16), characterised in that the oil cooler (16) is placed in the bypass pipe (15) and that the bypass valve (14) is placed in the oil pipe (12).
F01M 1/12 - Closed-circuit lubricating systems not provided for in groups
F04C 18/16 - Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons with helical teeth, e.g. chevron-shaped, screw type
F04C 28/08 - Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids characterised by varying the rotational speed
F16N 7/40 - Arrangements for supplying oil or unspecified lubricant from a stationary reservoir or the equivalent in or on the machine or member to be lubricated with a separate pump; Central lubrication systems in a closed circulation system
35.
COMPRESSOR INSTALLATION WITH DRYING DEVICE FOR COMPRESSED GAS AND METHOD FOR DRYING COMPRESSED GAS
Compressor installation with drying device for compressed gas, with the drying device (6) containing a housing (7) with a drying zone (8) and a regeneration zone (14); whereby in the housing (7) a drum (13) with a drying agent is fitted rotatably; and whereby the pressure line (5) comprises a heat-exchanger (11) for cooling the compressed gas before it enters said drying zone (8), whereby a tap-off pipe (18) is connected to the discharge line (17) that is connected to a cooling inlet (19) of the heat-exchanger (11), while the heat-exchanger (11) further comprises a cooling outlet (20) that is connected to the inlet (15) of the regeneration zone (14), while the outlet (16) of the regeneration zone (14) is connected to said pressure line (5).
B01D 53/06 - Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols by adsorption, e.g. preparative gas chromatography with moving adsorbents
Liquid-gas separator provided with a housing which comprises an at least partially cylindrical wall defining a separation chamber, closed at one end by a base and at the other end by a lid in which there is a gas outlet for the discharge of a separated gas. A shield is provided in said separation chamber surrounding the gas outlet in the separation chamber. The liquid-gas separator has an inlet for a liquid-gas mixture to be separated. The inlet is located in the lid so the liquid-gas mixture tangentially enters the separation chamber in the space between the wall and the shield. The housing wall is made up of a sleeve around which a composite is fitted or wound. The outer diameter of the lid and/or base is smaller than the outer diameter of the cylindrical wall. The composite is fitted at least partly over or around the lid and base.
B01D 45/16 - Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by centrifugal forces generated by the winding course of the gas stream
37.
A DRYER FOR DRYING COMPRESSED GAS AND METHOD OF REGENERATING A DESICCANT MATERIAL COMPRISED WITHIN SAID DRYER.
The present invention is directed to a dryer provided with an inlet (2) for receiving a flow of compressed gas and an outlet (3) for providing dry air, said dryer (1) comprising: a first and a second adsorption vessel (7 and 8) connected in parallel, a depressurization unit (13) connectable to the inlet flow conduit (9) of each of said first and second adsorption vessels (7 and 8); whereby the dryer (1) further comprises a flow reducer (14) connectable to the inlet flow conduit (9) of each of the first and second adsorption vessels (7 and 8) and whereby said control valves (11) are adapted to be switched in a first state, and a second state.
B01D 53/04 - Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
The present invention is directed to a method for regulating the regeneration time of an adsorption dryer, the method comprising the steps of: subjecting the adsorption dryer (1) to an adsorption cycle; stopping the adsorption cycle after a preset adsorption time interval (T1); and subsequently subjecting the adsorption dryer (1) to a first regeneration cycle during a preset time interval (Time3); characterized in that: maintaining the first regeneration cycle for an additional regeneration time interval (TE1) if said measured pressure dew point or relative humidity is higher than a predetermined pressure dew point or relative humidity threshold; and/or stopping said first regeneration cycle if the outlet temperature (temp1) is higher than or equal to a predetermined temperature threshold, and, if the time frame in which the adsorption dryer (1) is subjected to said first regeneration cycle is greater than a minimum heat regeneration time interval ( THeat-min).
B01D 53/04 - Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
Gas expansion device (1) for expanding a gas or a gas-liquid mixture, whereby the gas expansion device (1) comprises a gas expansion element (2) with an inlet port (4) tor the gas to foe expanded and an inlet pipe (5) for the gas to be expanded, whereby the inlet pipe (5) is connected to the inlet port (4), whereby the gas expansion device (1) comprises a first liquid Injection point (13) for the injection of liquid, whereby the first liquid injection point (13) is at a position level with the inlet port (4) or upstream from the inlet port (4).
Method for controlling the liquid injection of a compressor device (1), whereby this compressor device comprises at least one compressor element (2), whereby the compressor element (2) comprises a housing (3) that comprises a compression space (4) in which at least one rotor (7) is rotatably affixed by means of bearings (8), whereby liquid is injected into the compressor element (2), characterised in that the method comprises the step of providing two independent separated liquid supplies to the compressor element (2), whereby one liquid supply is injected into the compression space (4) and the other liquid supply is injected at the location of the bearings (8).
F04C 29/00 - Component parts, details, or accessories, of pumps or pumping installations specially adapted for elastic fluids, not provided for in groups
F04C 18/16 - Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons with helical teeth, e.g. chevron-shaped, screw type
METHOD FOR CONTROLLING THE LIQUID INJECTION OF A COMPRESSOR DEVICE OR EXPANDER DEVICE, A LIQUID-INJECTED COMPRESSOR DEVICE OR EXPANDER DEVICE AND A LIQUID-INJECTED COMPRESSOR ELEMENT OR EXPANDER ELEMENT
Method for controlling the liquid injection of a compressor device or expander device (1), whereby this compressor device comprises at least one compressor element or expander element (2), whereby the element (2) comprises a housing (3) that comprises a rotor chamber (4) in which at least one rotor (7) is rotatably affixed by means of bearings (8), whereby liquid is injected into the element (2), characterised in that the method comprises the step of providing two independent separated liquid supplies to the element (2), whereby one liquid supply is injected into the rotor chamber (4) and the other liquid supply is injected at the location of the bearings (8); and that the aforementioned separated liquid supplies are realised by means of a modular channelling piece of an injection module.
F04C 29/00 - Component parts, details, or accessories, of pumps or pumping installations specially adapted for elastic fluids, not provided for in groups
F04C 18/16 - Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons with helical teeth, e.g. chevron-shaped, screw type
ORC (Organic Rankine Cycle) for transforming waste heat from a heat source (11) containing compressed gas into mechanical energy, the ORC (8) comprising a closed circuit (14) containing a two-phase working fluid, the circuit (14) comprising a liquid pump (15) for circulating the working fluid in the circuit (14) consecutively through an evaporator (10) which is in thermal contact with the heat source (11); through an expander (12) like a turbine for transforming the thermal energy of the working fluid into mechanical energy; and through a condenser (16) which is in thermal contact with a cooling element (17), characterized, in that the ORC (8) is equipped with means (21) for determining the mechanical energy generated by the expander (12) and a control device (22) that regulates the vapour fraction of the working fluid entering the expander (12), whereby the control device (22) will regulate the aforementioned vapour fraction based on the determined mechanical energy such that the mechanical energy generated by the expander (12) is maximum.
F01K 25/04 - Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for the fluid being in different phases, e.g. foamed
F22B 1/18 - Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers the heat carrier being a hot gas, e.g. waste gas such as exhaust gas of internal-combustion engines
43.
METHOD FOR CONTROLLING AN ADSORPTION PHASE OF A GAS GENERATOR AND A GAS GENERATOR APPLYING SUCH A METHOD
A method for controlling an adsorption phase of a gas generator, said generator comprising an adsorbent medium capable of selectively adsorbing a first gaseous component from an inlet gas flow comprising a gaseous mixture, and allowing an outlet gas flow mainly comprising a second gaseous component, said method comprising the steps of: - directing the inlet gas flow through an inlet of said gas generator; - measuring the outlet gas flow; - determining the concentration of said second gaseous component at the outlet of said vessel,; wherein the method further comprises the steps of: A9) calculating the capacity of the generator; A10) comparing the measured outlet gas flow with the calculated capacity; All) if the measured outlet gas flow is lower than the calculated capacity, and if the determined concentration is higher than or equal to a set value, maintaining the generator in adsorption phase for a predetermined time interval, ?s; subjecting the generator to a regenerating cycle after said predetermined time interval, ?s.
B01D 53/04 - Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
B01D 53/96 - Regeneration, reactivation or recycling of reactants
Oil-injected vacuum pump element, whereby two cooperating helical rotors (3) are rotatably provided in a housing (2), whereby this housing (2) comprises an inlet port (8) and an outlet end face (6) with an outlet port (9), whereby compression chambers (11a, lib) are formed between the helical rotors (3) and the housing (2), characterised in that the vacuum pump element (1) is provided with a connection that extends from a first compression chamber (11a) to a second smaller compression chamber (lib) at the outlet end face (6), whereby this first compression chamber (11a) is at a lower pressure than the second compression chamber (lib) and whereby this second compression chamber (lib) can make connection with the outlet port (9) upon rotation of the helical rotors (3), whereby the connection is such that a flow from the second compression chamber (lib) to the first compression chamber (11a) is possible, whereby the connection is not directly connected to the outlet port (9).
F04C 18/14 - Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons
F04C 18/16 - Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons with helical teeth, e.g. chevron-shaped, screw type
F04C 28/06 - Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids specially adapted for stopping, starting, idling or no-load operation
45.
METHOD FOR CONTROLLING A GAS SUPPLY TO A VACUUM PUMP.
The present invention is directed to a method for regulating the temperature at an outlet channel (3) of a compressor or a vacuum element (1), the method comprising the step of providing a pressure regulating valve (4) on a influence channel (9), said influence channel (9) being in direct fluid communication with the compressor or vacuum element (1), said valve (4) regulating the pressure within the compressor or vacuum element (1) by adjusting the volume of fluid flowing between a process channel (8) and the compressor or vacuum element (1) relative to the difference between the pressure value within said compressor or vacuum element (1) and a set pressure value, wherein the method further comprises the steps of: - starting the compressor or vacuum element (1) and starting a pre-purge cycle by connecting the inlet channel (2) of the compressor or vacuum element (1) to a supply of a purge gas for a preselected time interval; - subsequently connecting the influence channel 9 to a process channel (8); and - disconnecting the inlet channel (2) from the process channel (8) and starting a post-purge cycle in which a flow of a gas is regulated at the inlet channel (2), for maintaining a set temperature within the vacuum element (1) for a selected time interval.
F04C 28/24 - Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids characterised by using valves controlling pressure or flow rate, e.g. discharge valves
F04C 25/02 - Adaptations for special use of pumps for elastic fluids for producing high vacuum
F04C 29/00 - Component parts, details, or accessories, of pumps or pumping installations specially adapted for elastic fluids, not provided for in groups
F04C 29/12 - Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
46.
DRYER FOR COMPRESSED GAS, COMPRESSOR INSTALLATION PROVIDED WITH SUCH A DRYER AND METHOD FOR DRYING GAS
Dryer for a Compressed gas provided with a vessel (2) with a drying agent and a drying zone (7) and a regeneration zone (8); at least one intermediate zone (9) that, viewed in the direction of rotation (R) of the drum (3), is situated between the regeneration zone (7) and the drying zone (5) and which is provided with a separate inlet (24) and an outlet that is shared with or connected to the outlet (15) of the regeneration zone (8); a tap-off pipe (22) that branches off from the outlet (19) of the drying zone (8) and connects to the aforementioned separate inlet (24) of the intermediate zone (9); means for effectuating an intermediate flow from the drying zone (7), through the tap- off pipe (22), to the intermediate zone (9), whereby the dryer is configured such that the entire flow of gas to be dried supplied to the dryer is first guided through the regeneration zone (8) before flowing through the drying zone (7), characterised in that the aforementioned means are only formed by one or more blowers (25) in the aforementioned tap-off pipe (22).
B01D 53/06 - Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols by adsorption, e.g. preparative gas chromatography with moving adsorbents
Inlet valve that comprises a pipe (2) and a housing (3) that forms a chamber (4) around this pipe (2), in which an aperture (9) is affixed with blades (10) that are slidingly provided in the housing (3), whereby these blades (10) present a protruding section (13) with edges (14) that lie against one another and whereby the blades (10) are provided with a spindle (16) and there are means (18) to enable the blades (10) to pivot around these spindles (16), during the movement of the spindles (16), between a closed position, whereby the sections (13) are oriented radially to close off the passage in the pipe (2), and an open position whereby the sections (13) are turned away from the pipe (2).
F16K 3/03 - Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor with a closure member in the form of an iris-diaphragm
F04C 29/12 - Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
F16K 31/528 - Mechanical actuating means with crank, eccentric, or cam with pin and slot
48.
METHOD FOR CONTROLLING AN OIL-INJECTED COMPRESSOR DEVICE
Method for controlling a compressor device (1) with a compressor element (2) and oil circuit (14) with oil (15) that is injected into the compressor element (2) by a fan (19) via a cooler (18), with a bypass pipe (20) across the cooler (18), whereby when the temperature (T) of the compressor element (2) is less than a value (Tset) the method consists of taking the following steps: - the fan (19) is switched off; - when the temperature (T) is still less than Tset, the oil (15) is driven via the bypass pipe (20); - when the temperature (T) is still less than Tset, the quantity of oil (15) that is injected into the compressor element (2) is decreased until the temperature (T) is equal to Tset.
F04C 29/00 - Component parts, details, or accessories, of pumps or pumping installations specially adapted for elastic fluids, not provided for in groups
Scroll compressor comprising a housing (2) with a fixed stator; a movable rotor (8); and a crankshaft (9) that has a main shaft (14) and a secondary shaft (16) that is mounted on bearings in the centre of the rotor (8) through the intervention of a bearing (17); whereby the rotor (8) is provided with an oil chamber (36) filled with oil (46) such that upon the movement of the rotor (8) the oil (46) is raised in order to lubricate the bearing (IV), characterised in that the oil chamber (36) is at a radial distance (A) from the centre of the rotor (8) and is connected to the bearing (17) by a narrower oil channel (37).
F04C 18/02 - Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
Method for cool drying gas, making use of a heat exchanger (2) whose primary section forms the evaporator (3) of a cooling circuit (4) with a compressor (6), an expansion valve (8) and a bypass pipe (16) across the compressor (6) with a hot gas bypass valve (18), whereby the method makes use of a formula that makes the link between the state of the expansion valve (8) and hot gas bypass valve (18), whereby on the basis of this formula: - either the state of the expansion valve (8) is adjusted as a function of the state of the hot gas bypass valve (18); or - adjusting the state of the hot gas bypass valve (18) as a function of the state of the expansion valve (8) or vice versa; or - the states of both valves (8, 18) are controlled with respect to one another.
The present invention relates to a filter unit for filtering a compressed gas contaminated with oil, in particular compressed air, wherein the filter unit contains a coalescence filter for coalescing the contaminant contained in the compressed gas, in particular oil. The coalescence filter comprises a housing with a gas supply for supplying the gas to a primary coalescence medium disposed in the housing, the gas flowing in a flow direction, wherein the primary coalescence medium contains at least one first layer of a first porous coalescence medium and a second layer of a second porous coalescence medium adjacent to the first layer, wherein the primary coalescence medium has a total thickness of at least 3.5 mm, measured at a pressure of 2 N/cm2.
The present invention relates to a coalescence filter for purifying a fluid which contains a carrier and at least one liquid contaminant by coalescing of the at least one contaminant, wherein the coalescence filter includes an inlet for supplying the fluid to a filter element present in the coalescence filter, wherein the filter element includes a primary coalescence medium which is provided for coalescing of the at least one contaminant in the primary coalescence medium during the displacement of the fluid through the primary coalescence medium, wherein the coalescence filter further includes an outlet for discharging the coalesced contaminant from the filter element, wherein the primary coalescence medium comprises at least one layer of a porous material, wherein the primary coalescence medium has a total thickness of at least 3.5 mm.
A pneumatic hammer device comprises connecting means for connection to a compressed air conduit of an external compressed air source and a striking mechanism comprising a housing and a piston for performing reciprocating motion in the housing. The piston has front and rear piston portions. The piston and housing together form front and rear spaces. The compressed air conduit is in fluid communication with the front space via a second passage in the housing. A valve is arranged in the second passage. An intermediate space is formed between the front piston portion and the rear piston portion and the housing. A controller is alternately subjected to air pressure of the rear space and air presssure of the intermediate space during reciprocating motion of the piston, and controls the valve based on the air pressures to alternately supply compressed air to the front space and achieve return movement of the piston.
B25D 9/04 - Portable percussive tools with fluid-pressure drive, e.g. having several percussive tool bits operated simultaneously of the hammer piston type, i.e. in which the tool bit or anvil is hit by an impulse member
B25D 9/14 - Control devices for the reciprocating piston
Dryer that is provided with a pressure vessel (2) with a drying zone (3) and regeneration zone (5); whereby the regeneration zone (5) comprises a first subzone (6) and a second subzone (7); whereby the dryer further comprises a rotatable drum (9) in the pressure vessel (2) with a drying agent (8), whereby the outlet of the regeneration zone (5) is connected to the drying zone (3) via a connecting pipe (13) with a cooler (15) and condensate separator; whereby a tap-off pipe (17) is connected outlet of the drying zone (3) and is also connected to the inlet of the second subzone (7); and whereby a blower (19) is provided to realize a regeneration flow from the drying zone (3) to the second subzone (7).
B01D 53/06 - Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols by adsorption, e.g. preparative gas chromatography with moving adsorbents
55.
LIQUID INJECTED SCREW COMPRESSOR, CONTROLLER FOR THE TRANSITION FROM AN UNLOADED STATE TO A LOADED STATE OF SUCH A SCREW COMPRESSOR AND METHOD APPLIED THEREWITH.
Liquid injected screw compressor with an inlet valve (6) and blow- off valve (19); a liquid circuit (20) with injector (22); a controller (35) for the transition from unloaded to loaded, whereby when unloaded the inlet valve (6) is closed and the blow-off valve (19) is open, and when loaded the inlet valve (6) is open and the blow-off valve (19) is closed, and whereby during an aforementioned transition, when the injection pressure (p22) is below a minimum threshold, the inlet valve (6) remains closed and is opened with a certain delay (tB-tA) and that there are means to gradually increase the injection during this delay (tB-tA) and to open the inlet valve (6) when the injection pressure (p22) has reached the minimum threshold.
F04C 28/06 - Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids specially adapted for stopping, starting, idling or no-load operation
F04C 18/16 - Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons with helical teeth, e.g. chevron-shaped, screw type
F04C 28/24 - Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids characterised by using valves controlling pressure or flow rate, e.g. discharge valves
56.
METHOD AND DEVICE FOR STRIPPING A GAS FROM A GAS MIXTURE USING A VENTURI EJECTOR
Method for extracting a gas from a gas mixture by: - during a purification step, bringing a first sorption medium into contact with the gas mixture in order to extract the gas from the gas mixture, whereby an enriched first sorption medium is formed in which the gas is at least partially sorbed; - during a regeneration step, bringing a second sorption medium into contact with the enriched first sorption medium in order to extract the gas from the enriched liquid first sorption medium; - whereby for the contact in the purification step and/or in the regeneration step use is made of a separate venturi ejector (12,22).
B01D 53/14 - Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols by absorption
Cooling circuit that is equipped with a coolant, a compressor (3), a condenser (5) and evaporator (8)- expansion valve (7) combinations, whereby the outlets of the evaporators (8) are connected to a collection pipe (9) that is connected to the compressor (3)/ whereby this cooling circuit (2) comprises a control unit (18) that is connected to a temperature sensor (24) and a pressure sensor (23) that are placed in the collection pipe (9) and which is connected to the expansion valves (7, 7A, 7B) for the control of them, and whereby the control unit (18) is provided with an algorithm for controlling the expansion valves (7, 7A, 7B) on the basis of the temperature sensor (24) and pressure sensor (23), in order to control the superheating in the collection pipe (9).
Magnetic bearing that is provided with a radial actuator part and an axial actuator part, whereby the aforementioned radial actuator part comprises a laminated stator stack (2) that is provided with a stator yoke (3), characterised in that the stator yoke (3) is linked to a closed ferromagnetic structure (9) that surrounds the stator yoke (3).
F16C 32/04 - Bearings not otherwise provided for using magnetic or electric supporting means
H01F 3/02 - Cores, yokes or armatures made from sheets
H01F 41/02 - Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils or magnets
H02K 1/12 - Stationary parts of the magnetic circuit
H02K 1/22 - Rotating parts of the magnetic circuit
Device for separating gases that comprises the following components: a source for the gases and flow adjustment means; a membrane unit (6) for the production of a permeate gas and a retentate gas, one of which is the product gas; purity determining means for the product gas; a first control unit (13) for the device; a retentate control system (19) and a product gas pressure measurement, whereby the source has a second control unit (16) for the flow adjustment means as a function of a target value of the gases and the first control unit (13) is connected to the second control unit and to the retentate control system (19), whereby the first control unit (13) can determine the target value and can control the retentate control system (19).
B01D 53/22 - Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols by diffusion
C01B 21/04 - Purification or separation of nitrogen
Screw compressor (1) with a compression chamber (2) that is formed by a compression housing (3), in which a pair of meshed helical compressor rotors (4,5) in the form of a screw are rotatably mounted and with a drive motor (14) that is provided with a motor chamber (16) formed by a motor housing (15), in which a motor shaft (17) is rotatably mounted, and this motor shaft (17) drives at least one of the aforementioned two compressor rotors (4,5), whereby the compression housing (3) and the motor housing (15) are connected directly together to form a compressor housing (28), whereby the motor chamber (16) and the compression chamber (2) are not sealed off from one another and whereby the rotor shafts (7,8) of the compressor rotors (4,5), as well as the motor shaft (17), extend along axial directions (??', BB', CC ) that are oblique or transverse to the horizontal plane.
F04C 18/16 - Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons with helical teeth, e.g. chevron-shaped, screw type
61.
COMPRESSOR DEVICE AS WELL AS THE USE OF SUCH A COMPRESSOR DEVICE
Compressor device that is at least provided with a screw compressor (2) with a compression chamber (3) that is formed by a compression housing (4), with a drive motor (10) that is provided with a motor chamber (12) formed by a motor housing (11) and with an outlet (26) for the discharge of compressed air that is connected to a pressure vessel (32) via an outlet pipe (31), whereby the compression housing (4) and the motor housing (11) are connected directly to one another to form a compressor housing (48), whereby the motor chamber (12) and the compression chamber (3) are not sealed off from one another and whereby the outlet pipe (31) between the pressure vessel (32) and the screw compressor (2) is free of closing means.
F04C 18/16 - Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons with helical teeth, e.g. chevron-shaped, screw type
F04C 23/00 - Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids
F04C 28/06 - Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids specially adapted for stopping, starting, idling or no-load operation
Device for cool drying a gas that consists of a closed cooling circuit (2) with a compressor (3), and which further in the direction of flow (M) of the coolant successively contains a condenser (5), an expansion means (7) followed by an evaporator (8), that constitutes the primary part of a heat exchanger (9) with a secondary part (10) through which the gas to be dried is guided, and whereby there is a bypass pipe (17) in the cooling circuit (2) that can be closed by means of a bypass valve (18) with a valve element (23) and a pressure-sensitive element (30) acting on it that is exposed to a local control pressure in the cooling circuit (2), whereby the control pressure pipe (38) is connected to the closed cooling circuit (2) upstream of the outlet of the evaporator (8).
Method for controlling a device (1) that comprises at least a compressor installation (2) and/or drying device on the one part, and a heat recovery system (3) on the other part, whereby the heat recovery system (3) absorbs heat from the compressor installation (2), and whereby the composite device (1) further comprises a controller (5) and means (6) for determining one or more system parameters, characterised in that the controller (5) controls both the compressor installation (2) and/or the drying device and the heat recovery system (3) on the basis of the aforementioned system parameters, such that the overall efficiency of the device is optimised.
The core of a combined radial -axial magnetic bearing is stacked with coated laminations each equipped with at least one radial cut ( 9 ). These cuts ( 9 ) prevent the induction of circulating currents caused by varying axial control fluxes through the central hole of the lamination stack. Magnetic symmetry is preserved by rotating every lamination with respect to the previous one.
H01F 27/245 - Magnetic cores made from sheets, e.g. grain-oriented
H01F 41/02 - Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils or magnets
H02K 7/09 - Structural association with bearings with magnetic bearings
65.
DEVICE FOR COMPRESSING AND DRYING GAS AND A METHOD APPLIED THEREBY
Device (1) for compressing and drying gas which comprises a compressor device (2) and a dryer (3) of the type that uses a drying agent for drying gas connected thereto, whereby the compressor device (2) comprises two or more compressor elements (6, 7, 8) which are connected together in series to form a first low-pressure stage, and one or more subsequent high- pressure stages, and an outlet pipe (11) in which an after cooler (15) is incorporated and the dryer (3) has a drying section (18) and a regeneration section (19), and whereby the regeneration section (19) is equipped for drying moist drying agent by means of a regeneration gas which is guided there through via an inlet (23) and an outlet (28) and a regeneration pipe (22) connected to the inlet (23),at least part of the regeneration gas is heated by means of a gas -gas heat exchanger (25) with a primary part (26) which is incorporated in a regeneration pipe (22) and a secondary part (27) that is fed by a pressure side of an above-mentioned compressor element (6, 7, 8).
Tube heat exchanger for exchanging heat between two fluids, a first and second fluid respectively, consisting of a housing (2) wherein one or more tubes (8) extend between an inlet part (5) and an outlet part (6) for the first fluid, and whereby these tubes extend through passages (13) through baffle plates (11) which are secured at a distance from one another by means of one or more fastening means, whereby said fastening means comprises a profile (14) that is snapped in place in one or more recesses (19) in the respective baffle plates (11), characterised in that the profile (14) is a V-profile and the recess (19) is a V- shaped recess having protrusions (23) on its two opposite edges (22) behind which the V-profile (14) is snapped in place.
F28D 7/16 - Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation
F28F 9/22 - Arrangements for directing heat-exchange media into successive compartments, e.g. arrangements of guide plates
67.
METHOD FOR DRYING COMPRESSED GAS AND COMPRESSOR INSTALLATION PROVIDED WITH A DRYER
Compressed gas dryer, provided with a drying zone (3) and a regeneration zone (5), and a drum (9) rotatable in the housing (2) containing a drying agent (8) that is transferred successively through the drying zone (3) and the regeneration zone (5), whereby said regeneration zone (5) comprises a first subzone (6) having a first inlet to supply a first regeneration gas flow, and a second subzone (7) having a second inlet to supply a second regeneration gas flow of which the relative humidity is lower compared to that of the first regeneration gas flow; and that an outlet of said drying zone (3) is connected via a connection conduit (17) to the second inlet of the second subzone (7).
B01D 53/06 - Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols by adsorption, e.g. preparative gas chromatography with moving adsorbents
F24F 3/14 - Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by dehumidification
A turbocompressor system comprising a high speed motor (10) comprising a rotor (12) mounted in a rotative manner relative to the stator, whereby on said rotor (12) one or more impellers (11) are directly fixed, said stator comprising active motor structures and a shell (7), comprising a ferromagnetic stator core (6) and a winding being constructed as toroidally wound coils (5), said shell (7) being constructed in such a manner as to create additional open space between said stator core (6) and said shell (7), constituting a cooling channel (15) through which process gas is passed axially for directly cooling said active motor structures and the rotor (12), prior to compression by said one or more impellers (11).
Liquid separator provided with a vessel (2) Which defines a space which is sealed at the top by means of a lid (7) in which is situated an outlet (8), whereby a pipe (11) is provided in the above-mentioned space on the one hand, extending round the above-mentioned outlet (8) in the above-mentioned space, as of the above-mentioned lid (7), and a fine filter (5) on the other hand, which also extends in the space round the above-mentioned outlet (8) and as of the above-mentioned lid (7), such that between the pipe (11) and the fine filter (5) is defined an outlet zone which is connected to the environment by means of a safety valve (21), characterised in that the safety valve (21) is connected to the above- mentioned outlet zone via a passage (19) in the lid (7).
Method for mounting a bush round a part (2) of a shaft with a force fit, which method comprises the following steps: - providing a guide element (7,23) with an outer surface (8) which is at least partly conical; - providing the guide element (7,23) in the extension of the aforesaid part (2) of the shaft (1);- pushing the bush (5) over the guide element (7,23) on the part (2) of the shaft (1).
H02K 15/03 - Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies having permanent magnets
B23P 19/02 - Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes for connecting objects by press fit or for detaching same
Fluid-injected screw-type compressor element comprising two co-operating rotors (2 and 3) which are radially and axially bearing-mounted in a housing (1), whereby this housing confines a rotor chamber (4) in which the rotors (2 and 3) are situated and in which a fluid circuit (11) for the injection of a fluid discharges, characterised in that the radial bearing of at least one rotor is formed by the contact of the rotor concerned with the part of the wall of the housing opposite the radial perimeter of the rotor concerned and/or the co-operation with the other rotor and by maximally one additional radial bearing.
F04C 18/16 - Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons with helical teeth, e.g. chevron-shaped, screw type
72.
METHOD FOR THE REMOVAL OF ORGANIC COMPONENTS FROM A MIXTURE OF ORGANIC COMPONENTS AND WATER AND A DEVICE FOR APPLYING SUCH A METHOD
Method for the removal of organic components from a mixture of organic components and water, characterised in that it comprises the steps of guiding the mixture through at least one vessel (3) in which has been provided an amount of organoclay (17) in at least one removable casing (18) which is permeable to liquids and gasses but not to organoclay particles, or on a supporting structure (28) from where the organoclay particles cannot come off, such that the amount of organoclay particles is at any time part of a removable entity; and of producing a flow through the aforesaid mixture in this vessel (3).
A pneumatic percussion tool (1) for demolition and/or breaking work in for example concrete and connectable to an insert tool (2). The percussion tool has a percussion cylinder (4), a piston (5), arranged to travel in the bore of the cylinder (4), a buffer (8), and a valve unit (6), designed to act on the piston (5) during operation and produce a repetitive reciprocating travel in the bore of the cylinder (4) by alternately applying pressure to the upper or lower end of the cylinder (4) while the insert tool (2) is subject to influence by the stroke of the piston (5) when this is at its dead centre at the lower end of the cylinder (4). The percussion tool comprises a means (11) of preventing the piston's reciprocating motion when the buffer (8) reaches a predetermined degree of wear and the tool is not pressed against any object being worked.
Minimum pressure valve having a housing (13) with an inlet (14) and an outlet (15) and in which has been provided a valve body (21) which is pushed against a seating (30) round the inlet (14) in a closed position, and whereby the valve body (21) is situated at a distance from the above- mentioned seating (30) in an open position, such that the inlet (14) is connected to the outlet (15), whereby the valve body (21) is provided in a sliding manner in a valve casing (17) confining, together with the valve body (21) an inner space (36) that is connected to the inlet (14) via a duct (35).
Liquid separator which is provided with a centrifugal separator (2) and a fine separator (10) through which a gas to be purified can flow, whereby the centrifugal separator (2) consists of a cylindrical housing (3) with a tangential inlet (6) and an axial outlet (7), characterised in that the fine separator (10) comprises a housing (11) defining a space (12) which is isolated from the inner space (8) of the centrifugal separator (2) by means of a non- return valve (13).
Method for controlling a turbocompressor, whereby a compressed air line (5) is connected to this turbocompressor (1) with a non-return valve (6) provided therein, characterised in that, when one or several process parameters exceed a predetermined limit, the rotational speed of the turbocompressor (1) will be reduced very suddenly to a predetermined minimum rotational speed and the above-mentioned non-return valve (6) will be closed and in that, after the above-mentioned reduction of the rotational speed, when one or several gear-down conditions are fulfilled, the rotational speed of the compressor (1) will be increased again and the non-return valve (6) will be opened.
Method for cool drying gas containing water vapour, whereby this gas is led through the secondary part of a heat exchanger (2), whose primary part is the evaporator (3) of a cooling circuit (4), whereby the temperature or the dew point is measured in the environment of the place where, when cool drying, the temperature of the gas to be dried is the lowest, and whereby the above-mentioned method comprises the step of switching off the cooling circuit (4) when the decrease of the lowest measured gas temperature (LAT) or the dew point during a predetermined period of time amounts to less than a preset value (y).
An improved multi-stage compressor device for compressing gas, which compressor device (1) mainly consists of at least two compressor elements (2-5-28) placed in series one after the other, at least one of which (5-28) is driven by a motor (9), characterized in that at least one other compressor element (2) is driven separately, in other words without any mechanical link with said motor (9), by means of an expander (18) of a closed power cycle (12) with a circulating medium inside which is heated by the compressed gas.
F04D 25/02 - Units comprising pumps and their driving means
F01K 23/00 - Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids
F04B 35/00 - Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for
79.
DEVICE FOR DRYING COMPRESSED GAS AND METHOD APPLIED THEREBY
Device for drying a compressed gas which consists of a compressed gas supply (2 ), two pre s sure ves s el s ( 33 and 34 ) which are provided with an input ( 37, 38 respectively) and an output ( 39, 40 respectively) and a take-up point ( 32 ) f or users of compres sed dried gas, whereby at least two layers of desiccant ( 35 and 36) are provided in the pressure vessels ( 33 and 34 ), a f irst layer ( 35 ) made of a waterproof desiccant and a second layer ( 36 ) whi ch i s not nece s sarily made of a waterproof desiccant respectively, and whereby the pressure vessels ( 33 and 34 ) are provided with a second input ( 41, 42 respectively) for the supply of compressed gas to regenerate desiccant from the first layer ( 35 ).
Improved compressor device which mainly consists of a case (2) containing a compressor element (6) that is powered by a variable speed motor (7) with a control box (8) with a set maximum number of revolutions (Nmax)for the compressor element (6), an air cooling (10) which suck air from the environment via an inlet (11) and blows it back to the environment through the case (2) and via an exhaust (12) and a cooling circuit (13) for the cooling of the gas which has been compressed by the compressor element (6), characterized in that the control box (8) is equipped with an algorithm (24) that reduces the abovementioned maximum allowed set number of revolutions (Nmax) to a defined level as soon as the monitored environmental temperature (T20) rises above a maximum set level (Tmax) , and the maximum allowed set number of revolutions (Nmax) again rises as soon as the environmental temperature (T20) falls below the above mentioned level (Tmax) .
F04C 28/08 - Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids characterised by varying the rotational speed
F04B 49/20 - Control of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for in, or of interest apart from, groups by changing the driving speed
Method for drying gas coming from a compressor (2), which is directed through a drier (5) of the type which consists of an air receiver (6) and a drying element (9) in the form of a rotor in which has been provided an adsorption and/or absorption medium (10) which is alternately guided through a drying zone (7) and a regeneration zone (8) of the air receiver (6) , whereby during periods of standstill or of idle running of the compressor (2) a gas flow is guided counterf low through the adsorption and/or absorption medium (10) in the drying zone (7), i.e. in a flow direction (P) from the outlet (22) to the inlet (15) of the drying zone (7) .
B01D 53/04 - Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
B01D 53/06 - Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols by adsorption, e.g. preparative gas chromatography with moving adsorbents
B60T 17/00 - Component parts, details, or accessories of brake systems not covered by groups , or , or presenting other characteristic features
Device for drying a compressed gas in a non-dissipative manner, which mainly consists of a compressed gas supply (2), at least two pressure vessels (31, 32) with an input (33, 34) and an output (35, 36), and a take-off point (26), whereby the device (1) is additionally provided with a first distribution device (3) and a second distribution device (13) which is provided with one or several coolers (30) and whereby the device (1) can be controlled by means of nine or ten cut-off valves (7-12, 21, 22, 29, 38 and 40).
Device for cool drying comprising a heat exchanger (2) whose primary part is the vaporizer (3) of a cooling circuit (4) which also comprises a compressor (6) driven by a motor (5), a control device (16) for this motor (5) and measuring means (17) for the lowest air temperature (LAT) , measuring means (18) for the ambient temperature (Tamb) and a flow meter (19), whereby this control device (16) can be at least switched in a first user mode in which the cooling circuit (4) is only activated when the gas flow exceeds a preset value and a second user mode in which the lowest air temperature (LAT) is maintained within a certain range by controlling the cooling circuit (4) .
Method for cool drying gas, in particular air, whereby this gas is guided through the secondary part of a heat exchanger (2) whose primary part is the vaporizer (3) of a cooling circuit (4), which consists in measuring the ambient temperature (Tamb), as well as the lowest gas temperature (LAT) or the dew point, and to switch the cooling circuit (4) on and off on the basis of these measurements in order to always maintain the lowest gas temperature (LAT) or the dew point between a pre-determined minimum and maximum threshold value , and whereby pre-determined threshold values are calculated on the basis of an algorithm which is a function of the measured ambient temperature (Tamb).
Gas drying device, consisting of a desiccant dryer ( 2 ) which makes use of a pressure tank ( 4 ) with a drying zone ( 5 ) and a regeneration zone ( 6 ), wi than adsorption and/or absorption medium ( 7 ) which is alternately guided through the drying zone ( 5 ) and the regenerat ion zone ( 6 ); a primary circuit ( 8 ) in which the abovement ioned desiccant dryer ( 2 ) is included, which makes it possible to guide the gas to be dried through the drying zone ( 5 ) of the desiccant dryer ( 2 ); a secondary circuit ( 9 ) which makes it possible for a part of the gas to be dried to be guided through the regeneration zone ( 6 ) of the desiccant dryer ( 2 ) and to absorb moisture there, characterised in that the device also contains a cooling dryer ( 1 ) which is inserted upstream the abovement ioned desiccant dryer ( 2 ) in the primary circuit ( 8 ).
Method for drying a gas from a compressor (1) by means of a drier (2) of the type which consists of a pressure tank (3) with a drying zone (4) and a regeneration zone (5), with a rotor (6) which is composed of a drying element (7) in which has been provided an adsorption and/or absorption medium (8) which is alternately put through the drying zone (4) and the regeneration zone (5) , characterised in that at a low load or zero load, the inlet of the regeneration zone (5) is connected to the user network (12) via a regeneration pipe (27), and in that the outlet of the regeneration zone (5) is connected to the atmosphere.
METHOD FOR CONTROLLING A COMPRESSED AIR INSTALLATION COMPRISING SEVERAL COMPRESSORS, CONTROL BOX APPLIED THEREBY AND COMPRESSED AIR INSTALLATION APPLYING THIS METHOD
Method for adjusting a compressed air installation with several compressors, which mainly consists of two or more electrically driven compressors (2-3-4) of what is called the ~loaded/unloaded~ type and /or the turbo compressor (3) type and /or the compressor (4) type with variable rotational speed, whereby these compressors (2-3-4) are each connected to a single compressed air network (8) with their outlets (5-6-7), characterized in that the method makes use of a control box (28) which makes it possible to adjust the pressure (P) in the above-mentioned compressed air network (8) around a target pressure (PS) to be set, whereby the above-mentioned adjustment takes place by controlling the flow (Q) of one or several of the above-mentioned compressors (2-3-4), in particular in order to increase the overall flow supplied by the compressors (2-3-4) when the pressure drops too much, and in order to lower the overall supplied flow when the pressure becomes too high.
F04C 28/02 - Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids specially adapted for several pumps connected in series or in parallel
G05D 16/20 - Control of fluid pressure characterised by the use of electric means
patents
