A process for operating a pump, the pump having a conveying chamber for conveying a fluid, the pump having a displacement element, the displacement element delimiting the conveying chamber at least in sections, so that a change in the position or location of the displacement element causes a change in the volume of the conveying chamber, the pump having a drive, the drive having a coil through which an electric current is conductible, the coil having an ohmic resistance value RDC and an inductance Lcoil, the drive includes a pressure element and a coupling device, the pressure element and the coil being configured and arranged such that a magnetic field, generated by an electric current flowing in the coil causes a stroke movement of the pressure element along a longitudinal axis from an initial position P1 to an end position P2.
A drive unit for a motor metering pump and a metering pump, including a drive chamber and a drive shaft arranged in the drive chamber. The drive shaft is rotated about a longitudinal axis in a direction of rotation during operation of the drive unit, the drive unit includes a bearing in which the drive shaft is mounted. The drive chamber is filled with a lubricant up to a filling level during operation of the drive unit, and the bearing is arranged above the filling level in the direction of the longitudinal axis. The drive shaft has a conveying channel for the lubricant, which extends from a first point below the filling level to a second point above the filling level and is arranged in such a way that, during operation of the drive unit, lubricant is transported from the first point to the second point.
G01F 3/24 - Mesure du débit volumétrique des fluides ou d'un matériau solide fluent dans laquelle le fluide passe à travers le compteur par quantités successives et plus ou moins séparées, le compteur étant entraîné par l'écoulement avec chambres de mesure se déplaçant au cours de l'opération
F16H 57/04 - Caractéristiques relatives à la lubrification ou au refroidissement
Metering pump having a stationary portion and a pump portion, which is mounted in a linear manner and can be moved relative to the stationary portion in order to move a displacement body, wherein, for the purpose of achieving a long service life, the pump portion is connected in an electrically potential-equalizing manner to the stationary portion via an electrically conductive spring element.
F04B 17/04 - Pompes caractérisées par leur combinaison avec des machines motrices ou moteurs particuliers qui les entraînent ou par leur adaptation à ceux-ci entraînées par des moteurs électriques utilisant des solénoïdes
F04B 13/00 - Pompes spécialement modifiées pour débiter des quantités fixes ou prédéterminées
F04B 9/06 - "Machines" ou pompes à piston caractérisées par les moyens entraînants ou entraînés liés à leurs organes de travail les moyens étant mécaniques comportant des mécanismes à mouvement perdu à ressorts ou à poids
A dosing pump for conveying a fluid, having a displacement element and a dosing chamber, the displacement element delimiting the dosing chamber and being movable back and forth on a movement axis between a pressure position and a suction position, a drive being able to apply a driving force to the displacement element in the direction of the pressure position. A restoring force is exerted on the displacement element in the direction of the suction position by a biasing element. A stop element is provided which limits the movement of the displacement element in the direction of the suction position, and the stop element can be adjusted along the axis of movement via a control element which can be moved along a control axis in order to set a dosing volume of the dosing pump.
F04B 13/00 - Pompes spécialement modifiées pour débiter des quantités fixes ou prédéterminées
F04B 43/02 - "Machines", pompes ou installations de pompage ayant des organes de travail flexibles ayant des organes flexibles du genre plat, p.ex. des diaphragmes
A hydraulically driven membrane pump for conveying a fluid, including a pumping chamber, a working chamber and a membrane which separates the pumping chamber and the working chamber in a fluid-tight manner, and means for reciprocating the membrane between a suction stroke position and a pressure stroke position, wherein the pumping chamber comprises at least one suction port through which the fluid to be conveyed is sucked into the pumping chamber in the suction stroke, and at least one discharge port through which the fluid to be conveyed is discharged from the pumping chamber in the pressure stroke, the membrane being connected on the working chamber side to a pull rod which is resiliently biased in the direction of the movement of the suction stroke.
The present invention comprises a method for optimizing the consumption of an operating resource of ozone generators in which an oxygen-containing gas is conveyed through an existing gap between two conductors, between which there is a potential difference, wherein the ozone generator has a generator rated power Pn that is achieved when the ozone generator has an electrical power Pel=Pel,max coupled and the oxygen-containing gas is conveyed through the gap with a gas flow φN, such that the gas that flows through has an ozone concentration cozN, wherein the method comprises the following steps:
A) specify a required generator power Ptarget,
B) if 0
A metering diaphragm pump includes a metering chamber, a working chamber and a metering membrane. The metering chamber and the working chamber are separated from one another by the metering membrane. A device for moving the metering membrane back and forth between a first and a second position is provided. The volume of the metering chamber is smaller in a first position than in the second position, and a protective membrane is disposed next to the metering membrane on the working chamber side.
F04B 13/00 - Pompes spécialement modifiées pour débiter des quantités fixes ou prédéterminées
F04B 43/02 - "Machines", pompes ou installations de pompage ayant des organes de travail flexibles ayant des organes flexibles du genre plat, p.ex. des diaphragmes
8.
METHOD FOR OPTICAL ACTIVATION OF THE SENSOR SURFACE, IN PARTICULAR FOR ZERO CHLORINE SENSORS
The invention relates to the use of a physical-technological radiation source in a method for cleaning and conditioning a sensor of a measuring device for determining a constituent substance in a sample, a sensor and an electrochemical measuring device for carrying out said method.
The present invention relates to a check valve, and to a device having a check valve, and to a method of cleaning a check valve. In order to provide a check valve or a device having a check valve or a method of cleaning a check valve, in which sufficient cleaning of the non-flow-facing regions of the valve closing body is also ensured, it is proposed according to the invention that an element reducing the flow cross-section is provided in a region of the opening stop in addition to the opening stop so that, when the valve closing body is in the open position and the fluid flows through the check valve counter to the blocking direction, a non-flow-facing region of the surface of the valve closing body has at least an average wall shear stress of 50% compared to an average wall shear stress of a flow-facing region of the surface of the valve closing body.
The present invention relates to an ozoniser comprising a first and a second electrode between which a first dielectric is arranged, wherein between the first dielectric and the first electrode, a gas channel is arranged, through which an oxygen-containing gas can be conveyed, wherein a first cooling-fluid channel is provided, the wall of which is formed at least in sections by the first dielectric or the second electrode. In order to provide an ozoniser that can realize an increased ozone yield compared to the known devices, it is proposed according to the invention that the cooling-fluid channel is filled with a porous material.
Module carrier for receiving a module having a fluid connection for use in a system for water treatment or water monitoring, wherein the module carrier can be reversibly connected to at least one further module carrier to form a module carrier assembly, wherein the module carriers can be connected to one another mechanically and detached from one another, wherein, during the mechanical separation or connection of the module carriers, at least one hydraulic connection between the module carriers can likewise be separated or connected.
The present invention relates to a diaphragm pump for conveying a fluid, a method for starting up a diaphragm pump for conveying a fluid and the use of a diaphragm pump for conveying a fluid.
F04B 43/02 - "Machines", pompes ou installations de pompage ayant des organes de travail flexibles ayant des organes flexibles du genre plat, p.ex. des diaphragmes
F04B 23/02 - Installations ou systèmes de pompage comportant des réservoirs
F04B 13/00 - Pompes spécialement modifiées pour débiter des quantités fixes ou prédéterminées
13.
METERING PUMP WITH TEMPORARY REVERSAL OF DIRECTION OF THE DISPLACEMENT ELEMENT
The present invention relates to a method for moving a fluid comprising the steps a. providing a metering head comprising a metering chamber and a displacement element which delimits said metering chamber, b. moving the displacement element in a suction direction from a first position to a second position, wherein a volume of the metering chamber in the second position of the displacement element is greater than a volume of the metering chamber in the first position of the displacement element such that fluid is drawn into the metering chamber via a fluid inlet during a suction stroke, c. moving the displacement element in a pressure direction from the second position to the first position such that fluid is forced out of the metering chamber via a fluid outlet during a pressure stroke. In order to provide a method for moving a fluid or a corresponding metering pump with which a number of the aforementioned disadvantages are prevented without the need for additional components, it is proposed according to the invention that the movement of the displacement element in suction direction during the suction stroke involve at least two changes of direction before the displacement element reaches the second position and/or that the movement of the displacement element in pressure direction during the pressure stroke involve at least two changes of direction before the displacement element reaches the first position.
F04B 13/00 - Pompes spécialement modifiées pour débiter des quantités fixes ou prédéterminées
F04B 49/12 - Commande des "machines", pompes ou installations de pompage ou mesures de sécurité les concernant non prévues dans les groupes ou présentant un intérêt autre que celui visé par ces groupes en modifiant la course des organes de travail
14.
HYDRAULIC ELEMENT AND DISPLACEMENT PUMP HAVING SUCH AN ELEMENT
The present invention concerns a hydraulic element comprising a sleeve-shaped casing and a piston reciprocable in a longitudinal direction in the sleeve-shaped casing. To provide a hydraulic element for use in displacement pumps for conveying small amounts of liquid, in which the danger of breakage or deflection of the hydraulic element is reduced, it is proposed according to the invention that the piston has a cavity extending in the longitudinal direction and having a cavity entry, wherein there is provided a pin which extends through the cavity entry into the cavity and which is connected to the sleeve-shaped casing at the sleeve-shaped casing or by way of an intermediate element so that in a reciprocating movement of the piston a relative movement occurs between the piston and the pin. The present invention further concerns a displacement pump having the hydraulic element according to the invention.
F04B 43/067 - Pompes ayant un entraînement par fluide le fluide étant déplacé directement par un piston
F04B 19/22 - Autres pompes à déplacement positif du type à piston alternatif
F04B 9/04 - "Machines" ou pompes à piston caractérisées par les moyens entraînants ou entraînés liés à leurs organes de travail les moyens étant mécaniques constitués par des cames, des excentriques ou des mécanismes à téton et rainure guide
F04B 23/02 - Installations ou systèmes de pompage comportant des réservoirs
The present invention concerns a method of mixing aqueous solutions, an apparatus for carrying out said method and the use of dosing devices with integrated dosing monitoring and stroke length control in an installation for mixing container aqueous solutions.
The invention concerns a dosing pump for moving a fluid, comprising a dosing head in which there is a dosing chamber and a displacement element reciprocatable between a first and a second position, wherein the displacement element delimits the dosing chamber, and the volume of the dosing chamber in the first position of the displacement element is greater than the volume of the dosing chamber in the second position of the displacement element, wherein the displacement element is coupled to a linear motor by way of a stroke element in such a way that in operation of the linear motor the stroke element performs a forward stroke and a return stroke in a housing in a direction of a movement axis with a stroke length h and the displacement element is reciprocated between the first position and the second position. To provide a dosing pump and to improve dosing pumps which are driven with a linear motor it is therefore proposed according to the invention that the stroke element has a cross-sectional area Q perpendicularly to the movement axis, wherein the square of the stroke length h is at least forty times greater than the cross-sectional area Q.
G01F 11/02 - Appareils qu'il faut actionner de l'extérieur, adaptés à chaque opération répétée et identique, pour mesurer et séparer le volume prédéterminé d'un fluide ou d'un matériau solide fluent à partir d'une alimentation ou d'un récipient sans tenir compte avec chambres de mesure qui se dilatent ou se contractent au cours du mesurage
The present invention concerns a dosing pump comprising a dosing chamber, a working chamber and a dosing diaphragm, wherein the dosing chamber and the working chamber are separated from each other by the dosing diaphragm, wherein there is provided a device for reciprocating movement of the dosing diaphragm between a first position and a second position, wherein the volume of the dosing chamber is smaller in the first position than in the second position. To provide a dosing pump, the dosing diaphragm of which has an increased service life and which as far as possible can be hydraulically operated even at very low dosing fluid pressures at the suction side it is proposed according to the invention that there is provided a prestressing device which prestresses the dosing diaphragm in the direction of the first or second position.
F04B 43/06 - Pompes ayant un entraînement par fluide
F04B 13/00 - Pompes spécialement modifiées pour débiter des quantités fixes ou prédéterminées
F04B 43/02 - "Machines", pompes ou installations de pompage ayant des organes de travail flexibles ayant des organes flexibles du genre plat, p.ex. des diaphragmes
F04B 43/00 - "Machines", pompes ou installations de pompage ayant des organes de travail flexibles
F04B 43/067 - Pompes ayant un entraînement par fluide le fluide étant déplacé directement par un piston
F04B 43/14 - "Machines", pompes ou installations de pompage ayant des organes de travail flexibles à action péristaltique ayant des organes flexibles du genre plat
F04B 43/04 - Pompes ayant un entraînement électrique
F04B 43/073 - Pompes ayant un entraînement par fluide le fluide d'entraînement étant commandé par au moins un clapet
F04B 43/107 - Pompes ayant un entraînement par fluide le fluide étant déplacé directement par un piston
A diaphragm unit for a diaphragm pump includes a diaphragm core and a multi-layer pump diaphragm connected to the diaphragm core. The pump diaphragm has a fluid-impermeable working layer which comes into contact with a fluid to be delivered, and a fluid-impermeable safety layer. A sealed volume for receiving fluid passing through the working layer is arranged between the working layer and the safety layer. A first clamping region of the diaphragm forms a ring which annularly surrounds the diaphragm core. To detect a rupture of the working diaphragm layer, at least one element of a sensor is provided within the ring formed by the first clamping region for detecting fluid which penetrates into the sealed volume.
F04B 43/00 - "Machines", pompes ou installations de pompage ayant des organes de travail flexibles
F04B 51/00 - Tests des "machines", pompes ou installations de pompage
F04B 43/02 - "Machines", pompes ou installations de pompage ayant des organes de travail flexibles ayant des organes flexibles du genre plat, p.ex. des diaphragmes
A device for moving a fluid includes a dosing head in which a dosing chamber is arranged, and a displacement element which can be moved between a first and second position. The displacement element borders the dosing chamber, and the volume of the dosing chamber in the first position differs from the volume in the second position. drive unit for moving the displacement element from the first position to the second position and a return mechanism for moving the displacement element back are provided. The return mechanism has two magnetic parts. The first part is placed on the dosing head, the second part is connected to the displacement element, and the two parts are designed such that a magnetic force causes a force to be applied to the displacement element in the direction of the first position.
F04B 43/02 - "Machines", pompes ou installations de pompage ayant des organes de travail flexibles ayant des organes flexibles du genre plat, p.ex. des diaphragmes
F04B 43/04 - Pompes ayant un entraînement électrique
A measuring device for determining the filling level of a filling material in a container is simple and inexpensive to produce and allows largely continuous determination of the filling level of an unknown filling material in a container. The measuring device has at least three measuring sensors in mutually spaced relationship in a heightwise direction. A read-out device having at least three measuring inputs for reading out the measuring sensor signals is provided. Each measuring sensor signal depends on material properties of a filling material arranged adjacent to the respective measuring sensor. A calibration device which effects calculation of the filling level detected by a measuring sensor positioned neither right at the top nor right at the bottom in the heightwise direction, on the basis of the measuring sensor signal of the further upwardly arranged measuring sensor and/or the further downwardly arranged measuring sensor.
G01F 23/26 - Indication ou mesure du niveau des liquides ou des matériaux solides fluents, p.ex. indication en fonction du volume ou indication au moyen d'un signal d'alarme en mesurant des variables physiques autres que les dimensions linéaires, la pression ou le poids, selon le niveau à mesurer, p.ex. par la différence de transfert de chaleur de vapeur ou d'eau en mesurant les variations de capacité ou l'inductance de condensateurs ou de bobines produites par la présence d'un liquide ou d'un matériau solide fluent dans des champs électriques ou électromagnétiques
G01F 25/00 - Test ou étalonnage des appareils pour la mesure du volume, du débit volumétrique ou du niveau des liquides, ou des appareils pour compter par volume
21.
Peristaltic pump with replaceable displacement element
A peristaltic pump includes a casing having a bottom, cover and wall forming a pump chamber, a tube connecting a casing inlet to a casing outlet arranged within the pump chamber, and a displacement element having at least two displacement members. The tube is arranged between the casing wall and the displacement element in such a way that due to rotation of the rotor the displacement members roll on the tube so the tube is squashed together so that a medium to be conveyed which is in the tube is displaced in the direction of the casing outlet. The displacement element has a first part fixed to the rotor and a second part which can be reciprocated between an operative position and a change position.
A method for cleaning, conditioning, calibration, adjustment and conditioning of an amperometric sensor of a measuring device includes generating a conditioning agent in the measuring device, wherein either an oxidising agent which is reduced at the working electrode or a reducing agent which is oxidised at the working electrode is used as conditioning agent.
G01N 27/404 - Cellules avec l'anode, la cathode et l'électrolyte de la cellule du même côté d'une membrane perméable qui les sépare du fluide de l'échantillon
G01N 27/30 - Composants de cellules électrolytiques Électrodes, p.ex. électrodes pour tests; Demi-cellules
Device for generating a pulsating hydraulic fluid pressure by a drivable working piston guided in a cylinder and an auxiliary piston guided in an auxiliary cylinder wherein the auxiliary piston transfers fluid to an auxiliary channel only in a first stroke section
The invention relates to a device for generating a pulsating hydraulic fluid pressure in a working chamber (1) filled with hydraulic fluid, comprising a driveable working piston (4) movably guided in a hollow working cylinder, wherein a working chamber (1) that is in fluid communication with the working piston (4) is provided, such that, by means of the movement of the working piston (4) within the hollow working cylinder, a pulsating hydraulic fluid pressure can be generated in the working chamber (1). In order to provide a device for generating a pulsating hydraulic fluid pressure and in particular a diaphragm metering pump comprising such a device, which has small dimensions and in addition a rapid passage through the phase between closing the suction valve and opening the pressure valve, according to the invention, an auxiliary piston (20) is movably guided in a hollow auxiliary cylinder and is in fluid communication with an additional chamber (18, 21), wherein a closeable auxiliary channel (22), which connects the additional chamber (18, 21) and the working chamber (1), is provided, wherein the auxiliary piston (20) and the hollow auxiliary cylinder are formed and arranged in such a way that, by moving the auxiliary piston (20) within the hollow auxiliary cylinder, a hydraulic fluid arranged in the additional chamber (18, 21) can at least partly be forced out of the additional chamber (18, 21) into the auxiliary channel (22) and from the auxiliary channel (22) into the working chamber (1).
F04B 5/00 - "Machines" ou pompes avec pistons à surfaces différentielles
F04B 7/04 - "Machines" ou pompes à piston caractérisées par un entraînement desmodromique des organes du mécanisme de distribution dans lesquels le mécanisme de distribution est réalisé par pistons et cylindres agissant en conjugaison pour ouvrir et fermer les orifices d'aspiration ou de refoulement
F04B 43/06 - Pompes ayant un entraînement par fluide
F04B 43/067 - Pompes ayant un entraînement par fluide le fluide étant déplacé directement par un piston
F04B 43/02 - "Machines", pompes ou installations de pompage ayant des organes de travail flexibles ayant des organes flexibles du genre plat, p.ex. des diaphragmes
H04Q 9/00 - Dispositions dans les systèmes de commande à distance ou de télémétrie pour appeler sélectivement une sous-station à partir d'une station principale, sous-station dans laquelle un appareil recherché est choisi pour appliquer un signal de commande ou
F04B 51/00 - Tests des "machines", pompes ou installations de pompage
Max the pressure limiting valve opens and working fluid can leave the hydraulic chamber by way of the outlet valve. To provide a corresponding diaphragm pump which automatically reduces the metering power in the overpressure situation without the use of additional sensors being necessary it is proposed according to the invention that the working fluid supply is arranged in a first and in a second chamber, the two chambers being connected together by way of a first connecting passage.
A diaphragm pump includes a pumping chamber, suction and pressure connections, a working chamber filled with a hydraulic fluid, a device for applying an oscillating pressure P1 to the hydraulic fluid, and a diaphragm separating the pumping chamber and the working chamber moveable between a pressure stroke position and a suction stroke position. A storage chamber accommodates hydraulic fluid at a pressure P2. The storage chamber and the working chamber are connected to each other by a valve having a closing part. The diaphragm cannot move too far beyond the pressure stroke position. The diaphragm is coupled to the closing part so that the valve is opened when the diaphragm moves from the pressure stroke position to a position that is farther from the suction stroke position than the pressure stroke position.
max, the conveying chamber being connected by a pressure valve to the pressure line and by a suction valve to the suction line, so, by an oscillating movement of the displacement element, metering medium can alternately be sucked out of the suction line via the suction valve into the conveying chamber and metering medium can be discharged from the conveying chamber via the pressure valve into the pressure line. In order to provide a metering system and a metering pump adapted for this, which has a high degree of efficiency, exhibits no leakage flow and is simply constructed, it is proposed according to the invention that
wherein κ=1.5.
G01F 1/34 - Mesure du débit volumétrique ou du débit massique d'un fluide ou d'un matériau solide fluent, dans laquelle le fluide passe à travers un compteur par un écoulement continu en utilisant des effets mécaniques en mesurant la pression ou la différence de pression
F04B 13/00 - Pompes spécialement modifiées pour débiter des quantités fixes ou prédéterminées
F04B 15/02 - Pompes adaptées pour travailler avec des fluides particuliers, p.ex. grâce à l'emploi de matériaux spécifiés pour la pompe elle-même ou certaines de ses parties les fluides étant visqueux ou non homogènes
A displacement pump includes a delivery chamber, connected to a pressure connection and a suction connection. A displacement element determines the volume of the delivery chamber and can be moved back and forth between a first position, in which the delivery chamber has a smaller volume, and a second position, in which the delivery chamber has a larger volume. The pressure connection is connected to the delivery chamber by a pressure valve and the suction connection is connected to the delivery chamber by a suction valve. The displacement pump is easy and economical to produce and simultaneously reliably provides a degassing function, whereby downtimes can be reduced and the reliability of the delivery process can be increased. With the pressure valve closed, a backflow channel connects the delivery chamber and pressure connection, through which medium can enter the delivery chamber and/or gas can escape from the delivery chamber.
F04B 13/00 - Pompes spécialement modifiées pour débiter des quantités fixes ou prédéterminées
F04B 43/06 - Pompes ayant un entraînement par fluide
F04B 7/02 - "Machines" ou pompes à piston caractérisées par un entraînement desmodromique des organes du mécanisme de distribution le mécanisme de distribution étant actionnés par un fluide
A pressure retention valve including a housing having an inlet passage and an outlet passage that can be connected together and a separating diaphragm subdividing the housing into two portions, wherein, in operation of the valve, a first portion conveys fluid and a second portion is fluid-free. The valve further includes a valve seat defining an end of the inlet passage, arranged in the fluid-conveying portion of the housing, and has a first sealing surface, a shut-off body which is arranged movably in the fluid-conveying portion of the housing and has a second sealing surface, and a spring element having a spring force, which is arranged in the fluid-free portion of the pressure retention valve. The spring element is so arranged that its spring force prestresses the second sealing surface in the direction towards the first sealing surface so that in a position of the shut-off body that closes the valve the sealing surfaces are in engagement with each other and the shut-off body separates the inlet passage from the outlet passage. The inlet passage is so arranged that a fluid flowing in through the inlet passage in operation of the valve is applied to the shut-off body in such a way that the fluid exerts on the shut-off body a force which acts in opposition to the spring force of the spring element. The shut-off body has a guide portion which extends into the inlet passage, and the inlet passage is portion-wise of such a design configuration that it forms a guide bush in which the guide portion of the shut-off body is guidedly received.
F16K 17/20 - Soupapes ou clapets limiteurs de débit
F16K 17/04 - Soupapes ou clapets de sûreté; Soupapes ou clapets d'équilibrage fermant sur insuffisance de pression d'un côté actionnés par ressort
F16K 17/06 - Soupapes ou clapets de sûreté; Soupapes ou clapets d'équilibrage fermant sur insuffisance de pression d'un côté actionnés par ressort avec dispositions particulières pour régler la pression d'ouverture
A magnetic drive metering pump in which a movable thrust member is fixed to a diaphragm and is axially movable in a magnet shroud. The thrust member, on electrically actuating the magnet shroud, is drawn into the magnet shroud against the force of a recuperating spring, and after deactivating the magnet shroud, is returned to a starting position. The diaphragm cooperates alternately with an outlet and an inlet valve to produce a pump stroke in a pump metering head. The magnetic drive metering pump has a reference element associated with the thrust member and diaphragm, the position of which reference element is detected by a positional sensor. The positional sensor provides a signal which has a fixed relationship to the position of the reference element, and the motion of the thrust member is controlled by a control circuit such that it follows a predetermined nominal profile.
F04B 39/06 - Refroidissement; Chauffage; Prévention du gel
F04B 17/03 - Pompes caractérisées par leur combinaison avec des machines motrices ou moteurs particuliers qui les entraînent ou par leur adaptation à ceux-ci entraînées par des moteurs électriques
brevets
