Provided is an extraction column (1) including a first column (10) having an adsorbent layer (100) and a second column (20) detachably coupled to the first column (10) and filled with a trapping layer (200) containing zirconium oxide in a powder grain form. After a solution containing an organic halogen compound and an impurity has been added to the adsorbent layer (100), an aliphatic hydrocarbon solvent is supplied to and passes through the adsorbent layer (100) and the trapping layer (200) in this order. At this point, the impurity in the solution is treated in the adsorbent layer (100), and the organic halogen compound in the solution is dissolved in the aliphatic hydrocarbon solvent and passes through the adsorbent layer (100). Then, the organic halogen compound is trapped in the trapping layer (200). After passage of the aliphatic hydrocarbon solvent, an extraction solvent is supplied to the second column (20) separated from the first column (10). After the extraction solvent has passed through the trapping layer (200), the extraction solvent turns into an extract containing the organic halogen compound extracted from the trapping layer (200).
B01D 15/42 - Selective adsorption, e.g. chromatography characterised by the development mode, e.g. by displacement or by elution
B01J 20/06 - Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising oxides or hydroxides of metals not provided for in group
B01J 20/28 - Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
A gas burner (1) according to one aspect of the present invention includes a fuel supply pipe (10) extending in a predetermined combustion air jet direction and supplied with fuel gas, an air jet port (40) arranged around the fuel supply pipe (10) and jetting combustion air in the combustion air jet direction, and multiple outflow nozzles (70) extending so as not to protrude outward from the fuel supply pipe (10) beyond the air jet port (40) and so as to form an acute inclination angle with respect to the combustion air jet direction and having tip ends forming fuel outlet ports (71) through which the fuel gas flows out.
F23D 14/22 - Non-premix gas burners, i.e. in which gaseous fuel is mixed with combustion air on arrival at the combustion zone with separate air and gas feed ducts, e.g. with ducts running parallel or crossing each other
Ceres Intellectual Property Company Limited (United Kingdom)
Miura Company Limited (Japan)
Inventor
Postlethwaite, Oliver
Dozio, Simone
Wakita, Yuto
Nakazato, Yoshiki
Sone, Toshifumi
Saeki, Takuya
Tanaka, Yasukuni
Abstract
A fuel cell system (200) and a method (900) for controlling temperature of a heat transfer fluid in a fuel cell system (200). The system (200) comprising at least one fuel cell stack (205) comprising at least one fuel cell, and having an anode inlet, an anode off-gas outlet for flow of anode off-gas. The system (200) further comprising a first heat exchanger (215) coupled to receive the anode off-gas which has been output form the anode off-gas outlet, the first heat exchanger (215) configured to exchange heat between the anode off-gas and a heat transfer fluid to cool the anode off-gas and heat the heat transfer fluid. The system (200) further comprising a second heat exchanger (230) that is configured to provide heat to the heat transfer fluid and a heat removal region (235) that is configured to remove heat from the heat transfer fluid. The system (200) further comprising a pump (240) configured to pump the heat transfer fluid around a fluid circuit (225) in a flow direction of: heat removal region (235) where thermal energy is removed, second heat exchanger (230) where thermal energy is added, first heat exchanger (215) where thermal energy is added. The method (900) comprises controlling (920, 945) the pump speed and controlling (925, 940) a mass flow rate of a medium to control the rate of heat removal in the heat removal region (235).
H01M 8/04119 - Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants with simultaneous supply or evacuation of electrolyte; Humidifying or dehumidifying
H01M 8/0662 - Treatment of gaseous reactants or gaseous residues, e.g. cleaning
A sterilizing method includes a preliminary decompression step (S200) of decompressing the inside of a chamber (11) with respect to an atmospheric pressure after a sterilization object wrapped with a wrapping member made from a material that absorbs ozone gas and hydrogen peroxide is housed in the chamber (11), an ozone adsorption step (S300) of injecting ozone gas to the inside of the chamber (11) under a decompressed state achieved in the preliminary decompression step (S200) to cause the ozone gas to be adsorbed to the wrapping member, and a sterilization step (S500) of sterilizing the sterilization object using the zone gas and hydrogen peroxide after the ozone adsorption step (S300).
A sterilizing method for sterilizing a sterilization object housed in a chamber (11) includes a first vapor injection step (S502) of injecting vapor produced from an aqueous solution of hydrogen peroxide to an inside of the chamber (11), an ozone injection step (S505) of injecting ozone gas to the inside of the chamber (11) after the first vapor injection step (S502), and a second vapor injection step (S507) of injecting vapor produced from water or vapor produced from a solution containing a volatile component to the inside of the chamber (11) after the ozone injection step (S505).
In a standing pipe body (210), an adsorbent layer (240) filled with active magnesium silicate as an adsorbent and an alumina layer (250) positioned therebelow are arranged. A sample solution containing dioxins is applied into the pipe body (210) from the top, and an aliphatic hydrocarbon solvent is subsequently supplied into the pipe body (210) from the top. The aliphatic hydrocarbon solvent having dissolved dioxins in the sample solution passes through the adsorbent layer (240) and the alumina layer (250) in this order, and is discharged from a bottom of the pipe body (210). At this point, a dioxin group including non-ortho PCBs, PCDDs, and PCDFs is selectively trapped by the adsorbent layer (240), and mono-ortho PCBs are selectively trapped by the alumina layer (250).
G01N 30/26 - Conditioning of the fluid carrier; Flow patterns
B01J 20/10 - Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising silica or silicate
B01J 20/20 - Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising carbon obtained by carbonising processes
B01J 20/08 - Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising oxides or hydroxides of metals not provided for in group comprising bauxite
G01N 30/46 - Flow patterns using more than one column
The combustion apparatus includes a burner configured to generate flame, an ignition section configured to generate spark for igniting the burner, a flame detection section configured to detect the presence or absence of the flame of the burner, and a flame determination section configured to determine, based on a detection result of the flame detection section in a preset determination period, whether or not the flame is generated at the burner. When a predetermined condition is satisfied based on the detection result of the flame detection section in the determination period, the flame determination section determines that the flame is generated. The ignition section generates the spark across a particular period, in which the predetermined condition is not satisfied, of the determination period, and does not generate the spark in the remaining period of the determination period.
A sterilizing method for sterilizing a sterilization object housed in a chamber (11) includes a first vapor injection step (S104) of injecting vapor produced from a first aqueous solution of hydrogen peroxide to the inside of the chamber (11), an ozone injection step (S107) of injecting ozone gas to the inside of the chamber (11) after the first vapor injection step (S104), and a second vapor injection step (S109) of injecting vapor produced from pure water or vapor produced from a second aqueous solution of hydrogen peroxide to the inside of the chamber (11) after the ozone injection step (S107).
A sterilizing method for sterilizing a sterilization object housed in a chamber 11 includes a first vapor injection step S502 for injecting vapor produced from a first aqueous solution of hydrogen peroxide to an inside of the chamber 11, an ozone injection step S505 for injecting ozone gas to the inside of the chamber 11 after the first vapor injection step S502, and a second vapor injection step S507 for injecting vapor produced from a second aqueous solution of hydrogen peroxide to the inside of the chamber 11 after the ozone injection step S505. A total amount of the hydrogen peroxide included in the second aqueous solution is smaller than or equal to a total amount of the hydrogen peroxide included in the first aqueous solution.
A sterilizing method for sterilizing a sterilization object housed in a chamber 11 includes an ozone preparation step S504 for filling an inside of a buffer tank 34 with ozone gas, and an ozone injection step S505 for injecting the ozone gas filled in the inside of the buffer tank 34 into the chamber 11.
A check valve includes a casing in which a fluid inlet, a valve chamber, a valve seat portion, and a fluid outlet are formed; a valve body disposed in the valve chamber; and an urging unit that urges the valve body to the valve seat portion side. The valve seat portion includes a first valve seat portion disposed on the fluid inlet side of the valve chamber, and a second valve seat portion disposed on an outer periphery side of the first valve seat portion. The valve body includes a first seal portion capable of coming into close contact with the first valve seat portion, a second seal portion capable of coming into close contact with the second valve seat portion, and a first hinge portion and a second hinge portion each of which is a starting point of bending of the second seal portion. The first seal portion is formed in a disk shape using a non-elastic material, and the second seal portion is formed in a recessed frusto-conical shape in which a surface on a lower bottom side is formed of an elastic material.
A venturi nozzle (1), disposed upstream from a blower (20), for mixing combustion air and fuel gas by intake pressure of the blower (20), comprising: a nozzle portion (12) with a shape that is narrowed in diameter downstream and into which combustion air is introduced; a mixing portion (13), disposed downstream from the nozzle portion (12), with a shape that is enlarged in diameter downstream and into which combustion air and fuel gas are mixed; and a fuel gas inlet (15), disposed between the nozzle portion (12) and the mixing portion (13), into which fuel gas is introduced; wherein a plurality of ridges (16) extending in a circumferential direction and arranged at predetermined intervals in a flow direction of combustion air are formed on an inner surface of the nozzle portion (12).
A ballast water treatment device attached to a vessel provided with: a line (1) through which drawn treatment target water flows; and a ballast tank (5) connected to a downstream side of the line (1). The ballast water treatment device is provided with: a filter (3) which is disposed in the line (1) and which filters the treatment target water; and a controller (7). The controller (7) causes the treatment target water to be discharged outboard from an upstream side of the filter (3) in an early stage of drawing of the treatment target water, until water quality is stabilized, and, when the water quality of treatment target water has stabilized, causes the filter (3) to filter the treatment target water. Thus, ballast water filtering can be efficiently performed.
A ballast water treatment device includes a ballast water treatment line, a pump for drawing and pressure feeding treatment target water, a filter, a ballast tank for storing filtered water, and an outboard discharger, and the pump, the filter, the ballast tank, and the outboard discharger are provided on the ballast water treatment line. Treatment target water drawn for a predetermined period from start of drawing treatment target water is not caused to pass through the filter but is discharged outboard by the outboard discharger, and discharging outboard by the outboard discharger is stopped at elapse of the predetermined period and treated water having been filtrated by the filter is poured into the ballast tank.
A ballast water treatment device including a cylindrical filter (2) that is disposed in a casing (1) and filters and externally discharges ballast water having flowed inside, comprising: a filter rotating unit (3) that rotates the filter (2) around a shaft center of the filter (2); a suction nozzle (4) that is disposed on the primary side of the filter (2) and opens toward the inner circumferential surface of the filter (2); a waste rinsing water discharging unit (5) that externally discharges waste rinsing water sucked by the suction nozzle (4) from the casing (1); a high-pressure fluid jet nozzle (40) that is disposed on the secondary side of the filter (2), opens toward the outer circumferential surface of the filter (2), and jets high-pressure fluid toward the filter (2); and a high-pressure fluid supplying unit (41) that supplies high-pressure fluid to the high-pressure fluid jet nozzle (40). The ballast water treatment device enables rinsing of the filter (2) to be performed efficiently and effectively, and achieves a simple structure and facilitated manufacture and maintenance.
B63B 13/00 - Conduits for emptying or ballasting; Self-bailing equipment; Scuppers
C02F 1/00 - Treatment of water, waste water, or sewage
B01D 33/11 - Filters with filtering elements which move during the filtering operation with rotary cylindrical filtering surfaces, e.g. hollow drums arranged for outward flow filtration
B63J 4/00 - Arrangements of installations for treating waste-water or sewage
C02F 103/00 - Nature of the water, waste water, sewage or sludge to be treated
The interior of a fractionating tool for fractionating dioxins is packed with a purification layer and an adsorption layer. The adsorption layer includes a first adsorption layer including an activated carbon-containing silica gel layer and a graphite-containing silica gel layer, and a second adsorption layer including an alumina layer. When a solution of dioxins is injected into the purification layer and is supplied with an aliphatic hydrocarbon solvent, the solvent dissolves dioxins in the solution of dioxins and passes through the purification layer and the adsorption layer. In this process, non-ortho PCBs, PCDDs and PCDFs among dioxins are adsorbed to the first adsorption layer, and mono-ortho PCBs among dioxins are adsorbed to the second adsorption layer. As a result, dioxins are fractionated into a group including non-ortho PCBs, PCDDs and PCDFs, and mono-ortho PCBs.
B01D 15/08 - Selective adsorption, e.g. chromatography
B01J 20/08 - Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising oxides or hydroxides of metals not provided for in group comprising bauxite
B01J 20/20 - Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising carbon obtained by carbonising processes
B01D 15/18 - Selective adsorption, e.g. chromatography characterised by constructional or operational features relating to flow patterns
B01J 20/10 - Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising silica or silicate
B01J 20/28 - Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
B01D 15/12 - Selective adsorption, e.g. chromatography characterised by constructional or operational features relating to the preparation of the feed
B01D 15/20 - Selective adsorption, e.g. chromatography characterised by constructional or operational features relating to the conditioning of the sorbent material
The invention provides a boiler load analysis apparatus that has a simple configuration and achieves highly accurate analysis of a boiler load. A boiler load analysis apparatus (10) includes an opening sensor (15) provided to at least one of a fuel supply line (45) and a combustion air supply line (50) of a boiler (40) and configured to measure an opening degree of at least one of a fuel flow regulating mechanism (47) configured to regulate, with the opening degree, a fuel flow in the fuel supply line (45) and a supplied air flow regulating mechanism (54) configured to regulate, with the opening degree, a supplied air flow in the combustion air supply line (50), and a load analyzer (20) configured to calculate a steam load of the boiler (40) from a measurement value of the opening sensor (15), to analyze the steam load of the boiler (40).
G01F 1/56 - Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using electric or magnetic effects
G01F 1/716 - Measuring the time taken to traverse a fixed distance using electron paramagnetic resonance (EPR) or nuclear magnetic resonance (NMR)
G01P 5/08 - Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft by measuring variation of an electric variable directly affected by the flow, e.g. by using dynamo-electric effect
F23N 1/02 - Regulating fuel supply conjointly with air supply
F22B 37/38 - Determining or indicating operating conditions in steam boilers, e.g. monitoring direction or rate of water flow through water tubes
A water quality measuring device comprises a measurement cell (10), a sample water supply unit (80), a reagent supply unit (30), an agitating unit (17), a measuring unit (20) and a control unit (90). The sample water supply unit (80) includes an inlet channel (12) configured to supply the measurement cell (10) with sample water and an outlet channel (13) configured to discharge sample water from the measurement cell (10). The inlet channel (12) is connected to a flow channel (2) configured to supply sample water, and includes a filter (13) and an electromagnetic valve (15). The control unit (90) opens the electromagnetic valve (15) for supplying sample water to allow sample water, from which foreign substances are removed by the filter (13), to flow into the measurement cell (10).
A61J 1/14 - Containers specially adapted for medical or pharmaceutical purposes - Details; Accessories therefor
B32B 7/12 - Interconnection of layers using interposed adhesives or interposed materials with bonding properties
B32B 15/08 - Layered products essentially comprising metal comprising metal as the main or only constituent of a layer, next to another layer of a specific substance of synthetic resin
B32B 15/20 - Layered products essentially comprising metal comprising aluminium or copper
B32B 27/08 - Layered products essentially comprising synthetic resin as the main or only constituent of a layer next to another layer of a specific substance of synthetic resin of a different kind
G01N 21/78 - Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator producing a change of colour
A boiler group includes a plurality of boilers. Each of the boilers has a unit amount of steam and a maximum variable amount of steam. A controller includes a deviation calculator for calculating a deviation amount between a necessary amount of steam and an output amount of steam, a boiler selector for selecting the plurality of boilers in order of load factors, and an output controller for varying an amount of steam of a boiler selected first by the boiler selector by the maximum variable amount of steam—when the deviation amount is at least the—maximum variable amount of steam, and varying the amount of steam of the first selected boiler by the unit amount of steam for the deviation amount when the deviation amount is less than the maximum variable amount of steam.
A ballast water treatment device includes a ballast water treatment line, a pump for drawing and pressure feeding treatment target water, a filter, an ultraviolet reactor for irradiating filtrated treatment target water with ultraviolet, a ballast tank for storing treated water having been treated with ultraviolet, and an outboard discharger, and the pump, the filter, the ultraviolet reactor, the ballast tank, and the outboard discharger are provided on the ballast water treatment line. Treatment target water drawn for a predetermined period from start of drawing treatment target water is not caused to pass through the filter and the ultraviolet reactor but is discharged outboard by the outboard discharger, and discharging outboard by the outboard discharger is stopped at elapse of the predetermined period and treated water having been filtrated by the filter and having been treated with ultraviolet by the ultraviolet reactor is poured into the ballast tank.
There is provided a flow passage control valve provided with a plurality of valves in a valve housing formed with set flow passages. A camshaft for operating each of the valves is provided along a right and left direction at the upper part of the valve housing. The respective valves are arranged so as to be divided front and rear into a first valve group and a second valve group with the camshaft as a border therebetween. The first valve group includes a first water passage valve, a second water passage valve, and a bypass valve. The second valve group includes the remaining valves that are not included in the first valve group.
C02F 1/42 - Treatment of water, waste water, or sewage by ion-exchange
F16K 11/18 - Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves; Arrangement of valves and flow lines specially adapted for mixing fluid with two or more closure members not moving as a unit operated by one actuating member, e.g. a handle with separate operating movements for separate closure members
F16K 31/524 - Mechanical actuating means with crank, eccentric, or cam with a cam
C02F 1/00 - Treatment of water, waste water, or sewage
F16K 11/16 - Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves; Arrangement of valves and flow lines specially adapted for mixing fluid with two or more closure members not moving as a unit operated by one actuating member, e.g. a handle which only slides, or only turns, or only swings in one plane
B01J 49/00 - Regeneration or reactivation of ion-exchangers; Apparatus therefor
22.
Salt water supply unit and water softening apparatus
A salt water supply unit includes a salt water plate that divides the interior of a salt water tank into a salt container and a salt water reservoir, and a salt water well that stands and penetrates the salt water plate. The salt water well accommodates a salt water valve device and a concentration detector. The salt water valve device includes a valve box having a valve hole that allows makeup water or salt water to flow therethrough, a float rod penetrating the valve hole, a valve element coupled to a first end of the float rod, and a water level detecting float coupled to a second end of the float rod. The concentration detector includes a switch that is incorporated in a stem holding a concentration detecting float. The switch outputs different detection signals in accordance with the position of the concentration detecting float.
Feedwater to be supplied to a feedwater tank via a feedwater path is passed through a waste heat recovery heat exchanger, a supercooler, and a condenser in sequence. A heat source fluid such as heat source water is passed through an evaporator and the waste heat recovery heat exchanger in sequence. The waste heat recovery heat exchanger is an indirect heat exchanger between the feedwater supplied to the feedwater tank via the feedwater path and the heat source fluid having passed through the evaporator. The supercooler is an indirect heat exchanger between the feedwater supplied to the feedwater tank via the feedwater path and a refrigerant supplied from the condenser to an expansion valve.
A split valve includes: an upper valve body having a spherical surface abutting on a seat surface of a discharge port to block the discharge port and a hollow on a lower surface; a lower valve body that blocks a receiving port by causing a spherical surface to abut on a seat surface of a receiving port and has a protrusion fitted to the hollow of the upper valve body on its upper surface, a shaft that rotates the lower valve body, an air supply/discharge mechanism that supplies/discharges an air pressure into/from a chamber defined by the protrusion and the hollow.
F16K 5/06 - Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor
F16K 27/08 - Guiding yokes for spindles; Means for closing housings; Dust caps, e.g. for tyre valves
F16K 1/20 - Lift valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure members with pivoted discs or flaps with axis of rotation arranged externally of valve member
F16K 5/20 - Special arrangements for separating the sealing faces or for pressing them together for plugs with spherical surfaces
Hydraulic cylinders of a conveying apparatus includes piston rods that extend in parallel, pistons, and cylinder tubes that have an internal pressure chamber partitioned into first and second pressure chambers. A pair of the hydraulic cylinders are arranged in parallel with an interval in a width direction of a conveyance path. The cylinder tube slidingly moves to the first pressure chamber side by supplying a hydraulic pressure to the first pressure chamber and discharging a hydraulic pressure from the second pressure chamber, and the cylinder tubes slidingly move to the second pressure chamber side by supplying a hydraulic pressure to the second pressure chamber and discharging a hydraulic pressure from the first pressure chamber. The workpiece is supported by a pair of the cylinder tubes.
B65G 25/04 - Conveyors comprising a cyclically-moving, e.g. reciprocating, carrier or impeller which is disengaged from the load during the return part of its movement the carrier or impeller having identical forward and return paths of movement, e.g. reciprocating conveyors
B65G 25/02 - Conveyors comprising a cyclically-moving, e.g. reciprocating, carrier or impeller which is disengaged from the load during the return part of its movement the carrier or impeller having different forward and return paths of movement, e.g. walking-beam conveyors
F15B 15/14 - Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith characterised by the construction of the motor unit of the straight-cylinder type
To achieve a downsized drain tank without reducing an effective drain recovery rate. A closed drain recovery system includes: a steam boiler (2); a closed-type drain tank (4); an air-open-type makeup water tank (7); a steam introduction line (10) for introducing a first flush steam within the drain tank (4) to the makeup water tank (7); a surplus drain introduction line (8) for introducing surplus drain to the makeup water tank (7) from the drain tank (4); and condensing units (33) and (39) provided for the makeup water tank (7), and configured to condense one or both of the first flush steam and a second flush steam by bringing the one or both of the first flush steam and the second flush steam into contact with the makeup water within the makeup water tank (7), the second flush steam being generated from the surplus drain.
F16T 1/48 - Monitoring arrangements for inspecting, e.g. flow of steam and steam condensate
F22D 11/06 - Arrangements of feed-water pumps for returning condensate to boiler
F22D 1/28 - Feed-water heaters, e.g. preheaters for direct heat transfer, e.g. by mixing water and steam
F28B 1/02 - Condensers in which the steam or vapour is separated from the cooling medium by walls, e.g. surface condenser using water or other liquid as the cooling medium
There is provided a drain recovery system with which power for driving a feedwater pump can be reduced and the feedwater pump can be driven at low costs. The drain recovery system includes: a buffer tank; an assist tank disposed below the buffer tank; a first drain supply line that connects a load device and the buffer tank; a second drain supply line that connects the buffer tank and the assist tank; a drain supply valve; a communication line that establishes communication between the assist tank and the buffer tank; a communication valve; a steam supply line that supplies steam from a boiler to the assist tank; a steam supply valve; a feedwater line that supplies drain from the assist tank to the boiler; and a feedwater pump.
F22D 5/00 - Controlling water feed or water level; Automatic water feeding or water-level regulators
F22B 33/10 - Combinations of boilers having a single combustion apparatus in common of two or more superposed boilers with separate water volumes and operating with two or more separate water levels
F01K 5/02 - Plants characterised by use of means for storing steam in an alkali to increase steam pressure, e.g. of Honigmann or Koenemann type used in regenerative installation
A boiler steam amount measuring method for continuously measuring a temporal change in an amount of steam from a steam boiler, includes: first measuring a differential pressure between a pressure at a first detection position that is a predetermined position in a can body of the steam boiler or a steam outflow path, and a pressure at a second detection position in the steam outflow path separated from the first detection position toward a downstream side; first calculating a pressure loss coefficient based on the differential pressure measured by flowing a predetermined flow rate of steam or fluid instead of steam into the steam outflow path, and the predetermined flow rate; and second calculating continuously the amount of steam based on the differential pressure measured in the first measuring and the pressure loss coefficient calculated in the first calculating, and outputting the calculated amount of steam as a measurement value.
A reverse osmosis membrane separation device includes: a reverse osmosis membrane module; a flow rate detecting unit configured to detect a flow rate of permeate water to output a detected flow rate value corresponding to the flow rate; a pressure pump configured to be driven at a rotation speed corresponding to an input drive frequency and to feed supply water to the reverse osmosis membrane module; an inverter configured to output a drive frequency corresponding to an input current value signal to the pressure pump; and a control unit configured to calculate a drive frequency of the pressure pump by a velocity type digital PID algorithm, such that a detected flow rate value output from the flow rate detecting unit becomes a target flow rate value that is set in advance to output a current value signal corresponding to a calculation value of the drive frequency to the inverter.
A boiler has a plurality of inner heat-transfer tubes which makes up an inner heat-transfer tube row, and a plurality of outer heat-transfer tubes which makes up an outer heat-transfer tube row. Inner fins project from each of the inner heat-transfer tubes on an outer circumferential side of the inner heat-transfer tube row. Outer fins project from each of the outer heat-transfer tubes on an inner circumferential side of the outer heat-transfer tube row. An inner row communicating portion is provided in a lower end portion of the inner heat-transfer tube row. An outer row communicating portion is provided in an upper end portion of the outer heat-transfer tube row. An inner-fin absent region is provided in a lower end portion of each of the inner heat-transfer tubes. An outer-fin absent region is provided in a longitudinally middle portion of each of the outer heat-transfer tubes.
A combustion apparatus for boiler includes an air supply device that varies a supply amount of combustion air, a fuel supply device that varies a supply amount of fuel, and a control device that controls the air supply device and the fuel supply device, obtains the supply amounts in accordance with respective combustion stages, and realizes the multiple combustion stages. The the control device controls the air supply device and the fuel supply device so as to return to a predetermined combustion stage when a request for transition cancel is received during transition from the predetermined combustion stage to another combustion stage, and controls so as not to perform the transition to the other combustion stage until a predetermined time period has elapsed.
3/L or less and is used as the boiler water, is supplied to the steam boiler. A part of the boiler water is appropriately disposed of. A chemical aqueous solution containing an alkaline metal silicate, an alkaline metal hydroxide and at least one kind of scale preventive agents of ethylenediamine tetraacetate, and its alkaline metal salt, is supplied to the feed water so that a concentration of the scale preventive agent is at least 1.5 mol equivalent times relative to the hardness of the feed water. In the steam boiler, a condensation rate of the boiler water is set so that the concentration of the scale preventive agent in the boiler water is 40 mg EDTA/L or less.
F22B 37/48 - Devices or arrangements for removing water, minerals, or sludge from boilers
C02F 5/08 - Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents
C02F 5/00 - Softening water; Preventing scale; Adding scale preventatives or scale removers to water, e.g. adding sequestering agents
C02F 5/12 - Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents using organic substances containing nitrogen
C23F 14/02 - Inhibiting incrustation in apparatus for heating liquids for physical or chemical purposes by chemical means
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
C02F 1/50 - Treatment of water, waste water, or sewage by addition or application of a germicide or by oligodynamic treatment
A boiler system has a boiler and a combustion amount control unit. The boiler includes a boiler body, a discharge unit, a discharge passage, a feedwater preheater and a feedwater temperature measuring unit. The feedwater preheater includes a heat exchanger. The feedwater temperature measuring unit measures a feedwater temperature that is the temperature of the feedwater flowing in the heat exchanger. The combustion amount control unit controls combustion amount in the boiler, and has a feedwater temperature threshold as a threshold relating to the feedwater temperature. The combustion amount control unit minimizes the combustion amount in the boiler in a case where the feedwater temperature measured by the feedwater temperature measuring unit is the feedwater temperature threshold or lower.
A regeneration process in the operating method of the invention includes a first regeneration process, and a second regeneration process after the end of the first regeneration process. In the first regeneration process, a regenerant is distributed at a top of an ion exchange resin bed and simultaneously the regenerant is collected at a bottom of the resin bed, thereby generating a downward flow of the regenerant to regenerate the whole of the resin bed. In the second regeneration process, the regenerant is distributed at a bottom of the ion exchange resin bed and simultaneously the regenerant is collected at a middle of the resin bed, thereby generating an upward flow of the regenerant to regenerate a part of the resin bed.
A storage medium stores a program which, when executed by a controller, causes the controller to control a boiler group including boilers each of which has a plurality of stepwise combustion positions. The program includes the steps of calculating a number of a presently combustion shiftable boilers, a number of their combustion positions, or a gross evaporation quantity, calculating a deviation quantity between a set physical quantity and a present time physical quantity, calculating a ratio between the deviation quantity and a control width that corresponding to the set physical quantity, and calculating the combustion subject boilers and their combustion positions based on the number of the combustion shiftable boilers, the number of their combustion positions, or the gross evaporation quantity and the ratio.
A column 1 for removing an interfering substance to an analysis of polychlorinated biphenyls contained in an oily liquid such as an electric insulating oil from the oily liquid, includes a first column 10 packed with a multilayer silica gel 13 in which an upper layer 14 of a sulfuric acid silica gel is stacked on a lower layer 15 of a nitrate silica gel and a second column 20 connected to the lower layer 15 side of the column 10 and packed with an alumina layer 23. The nitrate silica gel of the lower layer 15 is produced by treating an activated silica gel with a mixed aqueous solution of copper nitrate and silver nitrate, wherein the ratio by mole of the copper element to the silver element (the copper element:the silver element) is preferably from 1:0.5 to 2.0.
G01N 30/14 - Preparation by elimination of some components
B01J 20/10 - Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising silica or silicate
B01J 20/28 - Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
A storage medium stores a control program including program code for, in the case of increasing a quantity of combustion in the boiler group, after a high-efficiency combustion shift signal that makes the shift to the high-efficiency combustion position is output to all of the boilers subject to high-efficiency control by which control is conducted on the basis of combustion at the high-efficiency combustion position, outputting a control signal that makes the shift to a higher combustion position than the high-efficiency combustion positions for any one of the high-efficiency control subject boilers.
First, the emission amount of nitrogen oxides can be decreased close to zero as much as possible, and the emission amount of carbon monoxide is decreased to a permissible range. Second, energy saving by combustion at a low air ratio close to 1.0 is realized. Third, air ratio control is performed stably in a combustion region at a low air ratio.
The present invention includes: a combustion step of burning hydrocarbon-containing fuel in the burner, thereby generating gas free of hydrocarbons but containing oxygen, nitrogen oxides, and carbon monoxide; a hazardous-substance decreasing step of bringing the gas into contact with an oxidation catalyst, thereby oxidizing carbon monoxide contained in the gas by oxygen and reducing nitrogen oxides by carbon monoxide; and a concentration ratio adjusting step of adjusting a concentration ratio of oxygen, nitrogen oxides, and carbon monoxide in gas on a primary side of the oxidation catalyst to a predetermined concentration ratio in which a concentration of nitrogen oxides on a secondary side of the oxidation catalyst is decreased to substantially zero or a value equal to or lower than a predetermined value and a concentration of carbon monoxide on the secondary side of the oxidation catalyst is also decreased to substantially zero or a value equal to or lower than a predetermined value.
A boiler has an upper header, a lower header and a heat-transfer tube. The heat-transfer tube connects the upper header with the lower header. The hear-transfer tube is provided with projections such that a heat-transfer area per unit length of the heat-transfer tube is smaller in an upstream region than that in a downstream region of combustion gas.
F22B 25/00 - Water-tube boilers built-up from sets of water tubes with internally-arranged flue tubes, or fire tubes, extending through the water tubes
A steam engine and an electric motor are arranged, which respectively drives an air compressor. The compressed air from the air compressor is supplied to a compressed air using device through a common air tank. The steam is supplied to the steam engine through a steam supply path, and the steam used in the steam engine is supplied to a steam using device through a steam exhaust path. The steam pressure is monitored by a pressure sensor arranged in a steam header ahead of the steam exhaust path. The air pressure is monitored by a pressure sensor arranged in an air tank. A steam supply valve is controlled based on the steam pressure and the air pressure, and the electric motor is controlled based on the air pressure. The steam engine is preferentially driven over the electric motor by shifting the target value of the air pressure.
F01K 13/02 - Controlling, e.g. stopping or starting
F02C 6/16 - Gas-turbine plants having means for storing energy, e.g. for meeting peak loads for storing compressed air
F01D 15/08 - Adaptations for driving, or combinations with, pumps
F01K 7/38 - Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating the engines being of extraction or non-condensing type; Use of steam for feed-water heating the engines being of turbine type
F02C 6/00 - Plural gas-turbine plants; Combinations of gas-turbine plants with other apparatus; Adaptations of gas-turbine plants for special use
An air compressor is driven by a steam engine that generates power using steam. The steam is supplied to the steam engine through a steam supply path, and the steam is exhausted through a steam exhaust path. The steam from the steam engine is supplied to a steam using device through a steam header. The usage load of the steam is monitored by a pressure sensor arranged in the steam header. The compressed air from the air compressor is supplied to a compressed air using device through a compressed air path. The usage load of the compressed air is monitored by a pressure sensor arranged on the compressed air path. The steam supply to the steam engine is controlled based on the usage load of the steam and the usage load of the compressed air.
A cutoff valve having an upstream valve part and a downstream valve part which are assembled in series in a flow passage. Each of the valve elements at the valve parts are formed separably stacking a large diameter first valve element and a small diameter second valve element on each other. The first valve element is formed of elastic material and the second valve element is formed of rigid material. A valve shaft is passed through the center of the first valve element, and the tip of the valve shaft is connected to the second valve element. A first valve element moving component which moves the center part of the first valve element in a direction apart from the second valve element in the state of being engaged with the first valve element when the valve is opened is installed between the first valve element and the valve shaft.
Provided is a boiler equipped with a burner capable of realizing a reduction in emission of harmful substances using a liquid fuel such as kerosene or A-type heavy oil. A burner (20) is equipped with a nozzle part (22) spraying a liquid fuel into a combustion chamber (16) in a boiler body (10) formed by using a plurality of water tubes; provided around the nozzle part (22) is an air jetting part (27) constructed to control flow of air jetted from the air jetting part (27) so as to avoid short-passing of a gas produced by the burner (20) through a gas discharge port provided in the boiler body (10).
F22B 25/00 - Water-tube boilers built-up from sets of water tubes with internally-arranged flue tubes, or fire tubes, extending through the water tubes
A boiler according to the present invention includes: a plurality of heat transfer tubes arranged to form a cylindrical shape between an upper header and a lower header to constitute a heat transfer tube row; a boiler body cover of a cylindrical shape provided between the upper header and the lower header so as to surround the heat transfer tube row; and a heat insulating material provided to a predetermined region of a space between the heat transfer tube row and the boiler body cover.
F22B 23/00 - Water-tube boilers built-up from sets of spaced double-walled water tubes of return type in unilaterial abutting connection with a boiler drum or with a header box, i.e. built-up from Field water tubes comprising an inner tube arranged within an oute
To provide a boiler equipped with a water tube group performing heat recovery effectively and having expansion heating surfaces (fins or the like) of high durability, the present invention provides a boiler (1) including: a boiler body (10) having an inner water tube group (20) and an outer water tube group (30) that are arranged in an annular fashion; and a burner (40) arranged at a central portion of the inner water tube group (20), in which: intervals between adjacent inner water tubes constituting the inner water tube group (20) are closed except for portions where a gas flow passage is provided; and stud fins (22 and 32) are provided on a portion of at least one of the inner water tube group (20) and the outer water tube group (30) in a vicinity of the gas flow passage.
F22B 21/06 - Water-tube boilers of vertical or steeply-inclined type, i.e. the water-tube sets being arranged vertically or substantially vertically built-up from substantially-straight water tubes involving a single upper drum and a single lower drum, e.g. the drums being arranged transversely the water tubes being arranged annularly in sets, e.g. in abutting connection with drums of annular shape
A substantially ring-shaped seat section (8) protrudes from an inner circumference wall in a through hole (4) of a container attaching section (6) made of a metal. On an outer circumference of an electrode shaft (3) held in the through hole (4) through an insulator (5) made of a synthetic resin, locking protrusions (13, 14), which have a diameter larger than a hole diameter of the seat section (8), are provided at a distance from the seat section (8), on at least inner side or outer side of the seat section (8) in a shaft direction of the electrode shaft (3). Thus, for instance, when the inside of the metal container (2) is at a high temperature, the insulator (5) is destroyed and the electrode shaft (3) is to jump out from the container attaching section (6) to the outside or the inside of the metal container (2), the locking protrusions (13, 14) lock the seat section (8) and prevent the electrode shaft (3) from jumping out. Furthermore, since a space provided between the electrode shaft (3) and the container attaching section (6) due to the destruction of the insulator (5) is covered by having the locking protrusions (13, 14) lock the seat section (8), leakage of a liquid in the metal container (2) can be suppressed to minimum even the insulator (5) is destroyed.
G01F 23/00 - Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
The present invention provides a membrane filtration system (1) including: a filtering membrane portion (3) for removing impurities in feed water; a drain line (16) for draining a part of concentrate from the filtering membrane portion (3) to an exterior of a system; a concentrate return line (17) for returning a remainder of the concentrate from the filtering membrane portion (3) to an upstream side of the filtering membrane portion (3); a return flow rate adjusting portion (28) for concentrate provided in the concentrate return line (17); and a control portion (30) controlling the return flow rate adjusting portion (28) based on a drain flow rate of the concentrate or a flow rate of product water from the filtering membrane portion (3). With this construction, it is possible to suppress wasteful power consumption in a feed pump (7) for feeding water to the filtering membrane portion (3) and to prevent clogging in the filtering membrane in the filtering membrane portion (3).
The present invention realizes an ion exchange apparatus capable of enhancing the reliability of regeneration operation. Further, the present invention realizes an ion exchange apparatus capable of simplifying the construction of a salt water supply device. The ion exchange apparatus includes a resin bed housing part (2) in which an ion exchange resin bed (5) is housed; a flow passage control valve (3) for switching between a water service operation and a regeneration operation; and a salt water tank (40) for reserving salt water to be used in regeneration, the flow passage control valve (3) being connected to the salt water tank (40) through a salt water supply line (31), in which the salt water supply line (31) is provided with a flow detecting unit (48) for detecting a flow rate in a direction of supplying salt water and a flow rate in a direction of supplying refill water.
C02F 1/42 - Treatment of water, waste water, or sewage by ion-exchange
49.
Electrode rod for detecting water-level, method of detecting water-level, method of controlling water-level in a boiler, and method of controlling water-level in a steam separator
An insulating coating formed of engineering plastic with high-heat resistance, high-pressure resistance, and chemical resistance is formed on a surface of a water-level detecting electrode part of an electrode rod for detecting water-level attached to penetrate a metal container communicating with a boiler and including an external power supply connecting terminal part projecting outside the container and the water-level detecting electrode part projecting inside the container. One side of a power supply is connected to the external power supply connecting terminal part, and another side of the power supply is connected to the container for energization. An electrostatic capacity between the water-level detecting electrode and the container is measured by using the insulating coating on the surface of the water-level detecting electrode part as a dielectric. The water-level of water in contact with the water-level detecting electrode part in the container can be detected from the electrostatic capacity.
G01F 23/26 - Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring variations of capacity or inductance of capacitors or inductors arising from the presence of liquid or fluent solid material in the electric or electromagnetic fields
50.
Device for recovering material to be measured and method for recovering material to be measured
Device for recovering a material to be measured comprising a reservoir filled with a sample holding material impregnated with a sample liquid in which a material to be measured is dissolved and an adsorbing column for adsorbing the material to be measured, wherein the reservoir and the adsorbing column are communicated by a straight pipe, and further communicated with a recovery vessel via a recovery pipe branched out the straight pipe. Accordingly, operations of opening/closing or switching a first valve provided on the in-flow side of the reservoir, a second valve provided on the out-flow side of the adsorbing column, and a third valve provided to a vent hole to the atmosphere in the recovery vessel, make it possible to recover the material to be measured without depositing the material on the valves.
B01D 53/00 - 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
An object of the present invention is to provide a combustion apparatus equipped with a pilot burner and a main burner capable of establishing a stable combustion state without involving generation of CO and unburned substances at the main burner even when the supply of a gas fuel to the pilot burner is stopped. A combustion apparatus equipped with a pilot burner and a main burner according to the present invention is characterized in that, when the main burner is in a combustion state, the amount of air supplied to the pilot burner can be adjusted. Here, the amount of air supplied to the pilot burner is an amount allowing the pilot burner to be cooled.
2, a reduction in NOx, and a reduction in CO. The present invention provides a boiler including: a premixed gas burner, and water tubes in close proximity to the premixed gas burner, characterized in that the premixed gas burner ejects a premixed gas toward the water tubes at a predetermined angle; and the boiler further includes a fuel supply portion capable of supplying at least one of a gas fuel and a premixed gas provided at a position on a downstream side of and spaced apart by a predetermined distance from the premixed gas burner.
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