WO2022269076A1 - Système de filtre, dispositif de commande et carte de circuits imprimés pour celui-ci et procédé de changement - Google Patents

Système de filtre, dispositif de commande et carte de circuits imprimés pour celui-ci et procédé de changement Download PDF

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Publication number
WO2022269076A1
WO2022269076A1 PCT/EP2022/067430 EP2022067430W WO2022269076A1 WO 2022269076 A1 WO2022269076 A1 WO 2022269076A1 EP 2022067430 W EP2022067430 W EP 2022067430W WO 2022269076 A1 WO2022269076 A1 WO 2022269076A1
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WO
WIPO (PCT)
Prior art keywords
valve
control device
filter
filter system
fluid
Prior art date
Application number
PCT/EP2022/067430
Other languages
German (de)
English (en)
Inventor
Thomas Heinz
Wolfgang Wehmeyer
Gerhard Wiesen
Original Assignee
Fresenius Medical Care Deutschland Gmbh
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fresenius Medical Care Deutschland Gmbh filed Critical Fresenius Medical Care Deutschland Gmbh
Priority to EP22740337.5A priority Critical patent/EP4359691A1/fr
Publication of WO2022269076A1 publication Critical patent/WO2022269076A1/fr

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
    • F16K11/10—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit
    • F16K11/14—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit operated by one actuating member, e.g. a handle
    • F16K11/16—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves 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
    • F16K11/163—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves 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 only turns
    • F16K11/166—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves 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 only turns with the rotating spindles at right angles to the closure members
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/44—Mechanical actuating means
    • F16K31/52—Mechanical actuating means with crank, eccentric, or cam
    • F16K31/524—Mechanical actuating means with crank, eccentric, or cam with a cam
    • F16K31/52408—Mechanical actuating means with crank, eccentric, or cam with a cam comprising a lift valve
    • F16K31/52416—Mechanical actuating means with crank, eccentric, or cam with a cam comprising a lift valve comprising a multiple-way lift valve
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/44—Mechanical actuating means
    • F16K31/52—Mechanical actuating means with crank, eccentric, or cam
    • F16K31/524—Mechanical actuating means with crank, eccentric, or cam with a cam
    • F16K31/52491—Mechanical actuating means with crank, eccentric, or cam with a cam comprising a diaphragm cut-off apparatus

Definitions

  • the invention relates to a filter system, a control device and a circuit board for the same, as well as a method for changing.
  • the object of the invention is to provide a control device for a filter system and a method for changing it, with which a high degree of flexibility with regard to changing operating situations, simple handling and low cleaning requirements can be achieved.
  • fluid can be conveyed in the lines and the connections are connected to one another by means of at least one internal line.
  • the valve cartridge also has at least one valve, wherein the valve can be placed in a fluid-tight closed state and in a fluid-permeable open state.
  • the valve is connected to the at least one internal line in such a way that when the valve is in the open state, fluid can be conveyed through the at least one internal line, and when the valve is in the closed state, no fluid can flow through the at least an internal management is eligible.
  • the control device also has an actuating device with at least one valve manipulator, the valve manipulator being positionable and designed in such a way that the at least one valve can be set to the open state and to the closed state with the valve manipulator.
  • the fluid can be a liquid, for example contaminated water, but also a gas, for example contaminated air.
  • a large number of connections for external lines means that the valve cassette has at least two connections.
  • a connection for a supply line and a connection for a discharge line can be provided for each valve.
  • the fluid flow can be controlled by closing and opening the valve, in particular the supply and discharge, in that the corresponding fluid flows to and from a filter unit are enabled or prevented by the control device.
  • Such an exchangeable valve cartridge makes it possible to exchange only the components that are in contact with the fluid, without having to remove and exchange the actuating unit at the same time. On the one hand, this accelerates the replacement of the valves and, on the other hand, it is more economical to produce and replace only the valve cartridge as a replacement part than the entire control device.
  • the interchangeability can be ensured by providing a detachable connection, for example a click lock.
  • a valve can have an inner area and an outer area, it being possible for the valve to be sealed in a fluid-tight manner by closing the area between the inner area and the outer area.
  • the inner area is located within the outer area and is in particular designed concentrically with the outer area.
  • the geometries of the inner area and the outer area are preferably equivalent to one another. Both can have a structurally similar cross section.
  • the cross section can be configured as desired. However, a circular, oval or polygonal cross section (for example a three-, four-, six-, or octagonal cross-section) is preferred. With a similar design, the fluid flow in the valve can be better adjusted by the control device.
  • a circular cross section with which the valves can be switched particularly reliably is particularly preferred.
  • the outer area of the valve preferably has an access through which fluid can flow into the valve from the outside or through which fluid can flow outwards from the valve, which can pass directly into a connection for an external line.
  • a plurality of valves are preferably connected to one another in such a way that a plurality of valves can be fed by means of a single supply line.
  • This connection can be established, for example, via the entrances.
  • several valves can each be connected to one another in a fluid-conductive manner via their outer areas. The fluid can be conveyed quickly and directly from the outside area of one valve to the outside area of another valve.
  • the outer valve area preferably has several inlets or outlets. In this way, the valve can be used as a distribution valve, which increases the flexibility of the control device or of the filter system controlled with it.
  • connections for the external lines are preferably provided with an identification.
  • This identification can be, for example, a color, a bar code or a symbol.
  • the external lines can be supply lines or discharge lines. With these, fluid can be supplied to a filter unit or removed from a filter unit, for example.
  • the discharge lines can be filtrate lines, for example, ie lines with which the filtered fluid is discharged from the filter unit.
  • the valve cassette preferably has a membrane, the membrane and the valve being designed such that the membrane can be pressed into the valve, and the valve being able to be moved into the open and closed state by pressing the membrane into the valve. As a result, the valve can be switched into the open and closed state with the simplest of means, as a result of which the handling of the control device or of the filter system controlled with it is simplified.
  • a membrane within the meaning of this preferred embodiment is a thin layer of a material that influences the transport of substances through this layer.
  • the membrane can be made of a fluid-tight material.
  • the material of the membrane is flexible, elastic and fatigue-resistant, so that its complete functionality can be guaranteed even after a large number of changes between the open and the closed state of the valve.
  • the membrane can consist of a flexible plastic, for example.
  • the membrane is preferably fixed to the valve cassette. This fixation can be achieved, for example, by welding, gluing or clamping. As a result, the robustness of the control device or of the filter system controlled by it can be increased.
  • the membrane is preferably positioned between the inner area and the outer area, in particular covering both the inner area and the outer area. If pressure is now applied to the membrane in such a way that the area between the inner area and the outer area is closed, the fluid can no longer flow between the inner area and the outer area. This puts the valve in the closed state.
  • the sealing can be radial, for example by sealing a contour surrounding the inner area, or planar, for example by flat sealing of the inner area.
  • the inner area is preferably beveled towards its center in such a way that the membrane can be pressed deeper into the inner area towards the center of the inner area.
  • the inner area preferably has a sealing ring. In this way, the sealing effect can be additionally increased.
  • the sealing ring can be configured as an O-ring, for example.
  • the sealing ring can be glued in, introduced directly during production (for example by means of a multi-component injection molding process) or just inserted.
  • the membrane is preferably designed in such a way that further functionalities can be achieved by means of the membrane.
  • a membrane can be used with which the local pressure of the fluid can be measured.
  • the flexibility of the control device or of the filter system controlled by it can be additionally increased.
  • valve can preferably be placed in a partially open state.
  • control device can be used for additional operating states, for example for special filter modes.
  • a special filter mode for example, part of the fluid is filtered and another part of the fluid is guided along the filter, so that impurities retained by the filter are removed from the filter or washed away. This increases the flexibility of the control device or of the filter system controlled by it.
  • the valve can be designed in such a way that it can be opened and closed continuously.
  • the valve can remain in any state between the open and closed state.
  • the flexibility of the control device or of the filter system controlled by it is additionally increased.
  • the valve can preferably be opened and/or closed step by step via predetermined switching positions, so that it is only positioned in these switching positions during operation outside of the switching process.
  • switch positions can be provided, for example two (open/closed), three (open/half-open/closed) or any other limited number of switch positions, in particular less than 20, and ideally three to eight different switch positions depending on the desired accuracy. Inaccuracies that could occur with a continuous switching position can be avoided by predetermined switching positions, since only predefined positions can be set.
  • the valve manipulator is preferably designed as a cam, with the membrane being able to be pressed into the valve by means of the cam.
  • An education of the valve manipulator as Cam is extremely useful in particular together with the switching positions, since these can be easily adjusted via the outer contour of the cam.
  • the outer contour of the cam interacting with the valve, in particular with the membrane is in particular designed in such a way that the valve can be set both in the closed state and in the open state by means of the cam, in particular also in intermediate positions, such as in the switching positions.
  • a partially larger radius of the cam results in a stronger depression of the membrane into the valve once the corresponding part of the cam is in interaction with the valve.
  • Any partially open or partially closed intermediate states can also be set using special contours. This enables a simple construction of the valve and in particular the simple separation of the valve cartridge from the control device and ensures easy replacement.
  • the control device preferably has a plurality of valves, each of which has a separate valve manipulator designed as a cam.
  • the cams are arranged on a camshaft and the valves are arranged below the camshaft in such a way that all the valves can be controlled simultaneously by rotating the camshaft. It is also possible to provide a separate camshaft for each cam/valve pairing.
  • the design with only one camshaft for all valves is advantageous for interchangeability, particularly if the camshaft is designed to be movable. This simplifies the handling of the control device or of the filter system controlled by it.
  • the adjusting device preferably also has a movable spring tongue, the spring tongue being arranged in relation to the cam and the valve cassette in such a way that the spring tongue and thereby the membrane can be pressed into the valve by means of the cam.
  • the spring tongue can be moved in such a way that the tongue has a rest position or neutral position and can be moved or deflected from this position. The deflection preferably takes place by means of pressure applied to the spring tongue by a cam.
  • the spring tongue preferably has such a restoring function that if there is no pressure from the cam, there is no closing effect on the valve. This ensures the safe flow of the fluid and increases the robustness of the control device or the filter system controlled with it.
  • the spring tongue is preferably made of such a flexible and elastic material that it moves in the direction of the rest position without external influence or automatically with decreasing pressure.
  • the material of the spring tongue can be, for example, a spring sheet metal or a resistant, flexible plastic.
  • the restoring function of the spring tongue is achieved by fluid pressure or air pressure or magnetic force.
  • the restoring function is in particular independent of the material fatigue of the spring tongue, as a result of which greater long-term stability of the control device can be achieved.
  • a foil and/or a sealing or protective mat is preferably also arranged between the spring tongue and the valve. In this way it can be achieved that the membrane is protected from damage by the potentially sharp-edged spring tongue, as a result of which greater long-term stability of the control device can be achieved.
  • the spring tongue can be designed in such a way that in the pressed-down state the spring tongue presses flat on the membrane, for example by means of an appropriately inclined lower surface. This prevents the spring tongue from pressing obliquely on the membrane, with the result that there is a risk that the valve cannot be completely brought into the fluid-tight state. In addition, it is prevented that only one edge of the spring tongue is pressed with great force onto a narrow area of the membrane and the membrane is damaged as a result. In this way, a higher long-term stability and service life of the control device is achieved.
  • the actuating device can alternatively also have a movable tappet device, with the movable tappet device preferably being set up analogously to the spring tongue.
  • the adjusting device preferably also has a fixed shock-transmitting body, which is arranged between the membrane and the tappet device in order to protect the membrane from damage caused by jerky movements of the tappet device. Additional space is required for the shock transfer body and the ram device.
  • the spring tongue can be installed to save space.
  • the adjusting device preferably also has an adjusting element for adjusting the at least one valve manipulator, which can be actuated manually in particular.
  • the actuator can be designed as a handwheel.
  • the handwheel can be connected to the camshaft in such a way that the camshaft is also rotated by turning the handwheel. This simplifies the handling of the control device.
  • the actuator has an electric servomotor, in particular the motor is suitable for turning a camshaft.
  • the position of the actuator can be set precisely by means of the servomotor. This also makes it possible to actuate the actuator from a position remote from the control device. This increases the accuracy and the flexibility of the control device or the filter system controlled by it and simplifies its handling.
  • the movement of the actuator is preferably supported by a gear. If necessary, the type of movement can be converted, for example from rotary to translatory. But it is also possible to set a translation or reduction by means of the gear. As a result, the handling of the control device can be simplified.
  • the actuator has pneumatic and/or hydraulic actuators. This enables remote control of the control device or of the filter system controlled by it in a simple manner, which simplifies its handling.
  • markings are attached to the hand wheel or its surroundings, which indicate the different switching positions. This makes it easy for even inexperienced operators to adjust the valve or valves manually.
  • These markings can be represented, for example, with an adjusting sleeve mounted on or attached to the camshaft.
  • the holes in the adjusting sleeve match a fixing element. This fixing element slides into the holes in the adjusting sleeve, as a result of which the camshaft is fixed in a predetermined position.
  • the adjusting device is preferably designed in such a way that the adjusting device can be displaced between an operating position and a changing position.
  • the operating position corresponds to a position in which the valves can be controlled by means of the components of the actuating device. In the operating position, the actuating device is in contact with the valve cassette.
  • the changing position corresponds to a position in which the valve manipulator is positioned away from the valve cassette, so that the valve cassette can be easily reached and removed. As a result, changing the valve cassette can be simplified, which makes it easier to handle the control device.
  • the change between the operating position and the changing position preferably takes place by folding the actuating device toward or away from the valve cassette.
  • a folding element in the form of a hinge can be attached to the adjusting device, with which the adjusting device can be folded away upwards or to the side. This simplifies the handling of the adjusting device.
  • the adjusting device is preferably designed in such a way that it can be completely removed. In order to make this possible, screws can be provided which are removed to remove the adjusting device. In addition, it is also possible to fasten the adjusting device by means of a bayonet catch, a click mechanism, clips, cotter pins, a clamping bracket, a magnet, an electrical lock or by pneumatic and/or hydraulic pressing or tightening.
  • the changeover between the operating position and the changeover position preferably takes place by means of a translational displacement of the actuating device toward or away from the valve cassette. This makes it possible to change the valve cassette even if the height is limited.
  • control device in such a way that the control device has an accessible side via which the valve cassette can be removed.
  • This accessible side can be located, for example, to the side of or below the operating position of the valve cassette.
  • connections are preferably designed in such a way that the external lines can be connected reversibly, that is to say can be easily detached and reattached. Reversibility can be ensured, for example, by designing the connections as plug-in, click-in or rotating connections.
  • the connections can also be made by means of clamps or as a combined click and turn connection. This increases the flexibility of the control device or of the filter system controlled by it.
  • a further aspect of the invention relates to a filter system having a control device according to one of the preceding claims, wherein the valve cassette has a multiplicity of valves and the control device has a multiplicity of valve manipulators.
  • the filter system also has a first filter group having a first filter unit and a second filter unit.
  • the filter system further includes a plurality of external lines, the external lines each being connected to a port, and the external lines each being connected to a filter unit.
  • the filter system is suitable for carrying out various filter processes in which it is possible to vary between different operating states.
  • the filter system is suitable for switching between the filter process and the cleaning process if necessary or if the filter is too dirty by varying the valve positions. This removes the contaminants and the filtration process can then continue with greater process efficiency.
  • the filter system preferably has a control device with at least four valves, two valves each being connected to the first filter unit and to the second filter unit in such a way that both the supply of fluid into the filter unit and the discharge of fluid from the filter unit via the Opening state of the respective valve can be controlled. This increases the flexibility of the filter system and thus the filter processes that can be carried out with it.
  • each filter unit includes a housing and a filter, the housing having a first head port, a second head port, a first filtrate port, a second filtrate port, a first filtrate connector, and a second filtrate connector.
  • the filter is arranged in the housing and has a retentate space and a filter wall, the first head opening, the second head opening and the filter being arranged such that fluid can be conveyed from one head opening through the retentate space to another head opening.
  • the first filtrate opening is arranged in such a way that fluid in the retentate space can be conveyed through the filter wall to the first filtrate opening and vice versa.
  • the second filtrate opening is arranged analogously to the first, with the first filtrate connector connecting the first filtrate opening of the first filter unit to the first filtrate opening of the second filter unit in such a way that fluid can be conveyed from the first filtrate opening of the first filter unit to the first filtrate opening of the second filter unit.
  • the second filtrate connector connects the second filtrate opening of the first filter unit and the second filtrate opening of the second filter unit, analogously to the first filtrate connector. This enables a large number of filter processes, which increases the flexibility of the filter module.
  • the filter system preferably has at least four external lines, these being designed as follows.
  • the first external line is designed as a first feed line, the first feed line being connected to the first filter unit in such a way that fluid can be conveyed through the first feed line to the first filter unit and vice versa.
  • To the first filter unit also means that fluid can be conveyed into the filter unit.
  • the second external line is designed as a second feed line, the second feed line being connected to the second filter unit in such a way that fluid can be conveyed through the second feed line to the second filter unit and vice versa.
  • the third external line is designed as a first discharge line, the first discharge line being connected to the first filter unit and to the second filter unit in such a way that fluid can be conveyed away from the first filter unit and vice versa through the first discharge line, and that fluid can be conveyed through the first Discharge line can be conveyed away from the second filter unit and vice versa.
  • the fourth external line is designed as a filtrate line, the filtrate line being connected to the filter unit in such a way that fluid can be conveyed away from the filter unit and vice versa through the filtrate line.
  • the fluid conveyed away from the filter unit through the filtrate line is preferably filtrate, ie filtered fluid.
  • Each filter group, each external line and each valve is preferably replaceable.
  • the filter system preferably has a second filter group, the second filter group being structurally identical to the first filter group, and the components of the second filter group being connected to the external lines analogously to the components of the first filter group.
  • the filter system it is possible for the filter system to also have additional filters, for example a third or a fourth filter group.
  • additional filters for example a third or a fourth filter group.
  • the filter system preferably also has a circuit board which is designed in such a way that individual components of the filter system can each be fixed separately on the circuit board. This makes it possible for the components of the filter system to be positioned securely, particularly during operation. The separate fixation in each case enables easy replacement of the individual components, particularly if they are designed as single-use products. This provides a flexible circuit board.
  • the components are preferably fixed by means of rails. This enables easy positioning of the components, which simplifies the handling of the board.
  • the circuit board preferably also has a positioning element, it being possible to support the positioning of the valve cassette by means of the positioning element. This simplifies the handling of the circuit board.
  • the positioning element is preferably a stop against which the valve cassette is pushed.
  • the positioning element is preferably a pin onto which the valve cassette is placed.
  • Several positioning elements or pins can also be provided.
  • a mandatory, ie only one possible, arrangement of the valve cassette can be achieved. This simplifies the correct positioning of the valve cassette.
  • the combination of pin and associated hole can be swapped between the valve cassette and the circuit board. This means that both the circuit board and the valve cassette can each have both holes and pins. This simplifies the handling of the circuit board.
  • a further aspect of the invention relates to a method for changing the existing valve cassette of a control device in a filter system, the existing valve cassette having a multiplicity of connections for external lines and a valve, and the control device having an actuating device.
  • the switch procedure has the following steps. A first step is to disconnect the connections between the terminals and the external lines. A second step is to remove the existing valve cassette from the controller. A third step consists in inserting a new valve cassette, which is structurally identical to the existing valve cassette, into the control device. Accordingly, a simple change of the existing valve cassette is made possible.
  • the actuating device Before the existing valve cassette is removed, the actuating device is preferably set in the changing position and, after the new valve cassette has been inserted, the actuating device is set back in the operating position. This increases the accessibility of the valve cartridge, which simplifies handling.
  • the components of the control device are preferably fixed on a circuit board, with the components of the control device to be replaced being removed from the circuit board and corresponding new components of the control device being fixed again on the circuit board. This increases the robustness of the method.
  • FIG. 1a shows a control device according to the invention in a plan view.
  • FIG. 1b shows a Flandrad according to the invention with a fixing element and an adjusting sleeve in an isometric view.
  • FIG. 2 shows a valve cassette according to the invention with five valves in an isometric view.
  • FIG. 3a shows a valve, a cam and a spring tongue located between them, as well as a film, in an isometric view.
  • FIG. 3b shows the arrangement shown in FIG. 3a in a sectional view.
  • FIG. 4a shows an isometric view of five cams located on a camshaft.
  • FIG. 4b shows an arrangement of cams, which are arranged one behind the other along an axis, in a view along a direction which is parallel to this axis.
  • FIG. 5a shows a valve with two accesses in a schematic sectional view.
  • FIG. 5b shows a valve with an access in a schematic sectional view.
  • FIG. 5c shows an arrangement of two valves—as shown in FIG. 5a—which are each connected to one another via an access, shown in a schematic sectional view.
  • FIG. 5d shows an arrangement of two valves—one of them as shown in FIG. 5a and one of them as shown in FIG. 5b—which are each connected to one another via an access, shown in a schematic sectional view.
  • FIG. 6 shows a top view of a filter system having a control device and a filter group.
  • Figure 7 are a filter system having a control device and two
  • Filter groups and a circuit board with a positioning element are shown in an isometric view.
  • FIG 8 are a filter system having a control device and two
  • Filter groups and a circuit board with two mounting rails and a folding element are shown in an isometric view.
  • Control device shown in a filter system.
  • FIG. 1a shows a preferred embodiment of a control device 100 according to the invention in a plan view.
  • This control device 100 has three connections 120 , an actuating device 160 , five valve manipulators 162 designed as cams, a camshaft 164 , an actuator 166 designed as a handwheel, a fixing element 167 and a perforated adjusting sleeve 168 .
  • the valve manipulators 162 or cams are arranged on the camshaft 164 .
  • the actuator 160 is arranged on the camshaft 164 .
  • the fixing element 166 or handwheel is connected to the camshaft 164. Through interaction of the actuator 166 or hand wheel, the fixing element
  • valve manipulators 162 or cams can be brought into different positions.
  • a valve cassette 110 is arranged below the cams 162'.
  • a preferred embodiment of a valve cassette 110 according to the invention is shown in FIG.
  • the valve cartridge 110 has five valves 150 and three connections 120 on the side visible in the illustration.
  • Each valve 150 has an interior 154 and an exterior 156 .
  • the valves 150 are arranged in series.
  • FIG. 3a shows a preferred embodiment of a valve 150, a cam 162' and a spring tongue 112 located between them, as well as a film 116 in an isometric view.
  • the cam 162' has an outer contour with a varying radius.
  • the outer contour of the cam 162' is in interaction with the spring tongue 112 of the valve 150.
  • FIG. A partially larger radius of the cam 162' leads to a stronger pressing of the spring tongue 112 and thus the membrane 114 into the valve 150.
  • FIG. 3b shows the arrangement shown in FIG. 3a in a sectional view. It can be seen here that when the cam 162' presses on the spring tongue 112, this presses in the film 116 and the film 116 in turn presses in the membrane 114. If the membrane 114 is then in the depressed state, fluid can flow neither from the outer area 156 into the inner area 154, nor in the opposite direction from the inner area 154 into the outer area 156 Port 120 transitions.
  • the actuating device can alternatively also have a movable tappet device, with the movable tappet device preferably being set up analogously to the spring tongue.
  • the adjusting device preferably also has a fixed shock-transmitting body, which is arranged between the membrane and the tappet device. If a plunger device is present, it is connected to the cam 162' and can be depressed by means of the cam 162', resulting in the membrane 114 being depressed. So that the tappet device also releases the membrane 114 again, the tappet device can have a spring element which returns the tappet device to the initial position if there is no pressure from the cam 162'.
  • FIG. 4a shows a preferred embodiment of a camshaft 164 with five cams 162' arranged on it.
  • the cams 162' each have different outer contours. This means that when the camshaft 164 rotates, the cams 162' each press differently into the valves assigned to them. In this way, different filtering processes can be set and performed with a single arrangement of cams 162'.
  • FIG. 4b shows an arrangement of cams 162', which are arranged one behind the other along an axis, in a view along a direction which is parallel to this axis.
  • the different outer contours of the cams 162' can also be seen here.
  • valves 150 or arrangements of valves 150 are shown in a schematic sectional view in FIGS. 5a to 5d.
  • the valve 150 shown in FIG. 5a has two accesses 158, which enable a fluid passage from one side of the outer area 156 to another side of the outer area 156.
  • fluid can flow between the two ports 158 within the exterior 156 and also to the interior 154 .
  • the valve 150 is in the closed state, fluid can only flow between the two ports 158 within the exterior 156 and not to the interior 154 .
  • the valve 150 shown in FIG. 5b is similar to the valve 150 shown in FIG. 5a, the valve 150 in FIG. 5b having only one access 158 on the outer area 158.
  • the valve 150 When the valve 150 is in the open state, fluid can flow between the port 158 through the exterior 156 to the interior 154 .
  • the valve 150 When the valve 150 is in the closed state, fluid can flow only within the exterior 156 but not to the interior 154 .
  • valves 150 shown in FIG. 5c consists of two valves 150, as shown in FIG. 5a, which are each connected to one another via an access 158. With both valves 150 in the open condition, fluid can flow between the two outer ports 158 within the outer regions 156 and to the inner regions 154 as well. If one of the two valves 150 is in the closed state, fluid can only flow to the inner region 154 of the valve 150 in the open state, but not to the inner region 154 of the valve 150 in the closed state. Depending on the filter process to be carried out, either one or the other valve 150 can be placed in the closed or open state, respectively.
  • valves 150 shown in FIG. 5d consists of a valve 150 as shown in FIG. 5a and a valve 150 as shown in FIG. 5b, which are connected to one another via an access 158 in each case.
  • FIG. 6 shows a top view of a filter system 200 according to the invention comprising a control device 100 and a filter group 300 .
  • the filter group 300 has two filter units 310 .
  • the filter units 310 are connected to the control device 100 by means of external lines 130 .
  • FIG. 7 shows a filter system 200 according to the invention having a control device 200 and two filter groups 300 and a circuit board 210 with a positioning element 212 in an isometric view.
  • the hand wheel 166 ′ of the control device 100 is arranged in such a way that it can be rotated about the axis of the camshaft 164 .
  • the positioning element 212 is arranged below the camshaft 164 .
  • the filter groups 300 are arranged horizontally, ie their longitudinal axis is in a horizontal plane in relation to the circuit board 210 .
  • FIG. 8 shows a filter system 200 having a control device 100 and two filter groups 300 and a circuit board 210 with two fastening rails 214 and a folding element 220 in an isometric view.
  • the handwheel 166' shown in FIG. 7 the handwheel 166' shown in FIG.
  • the control device 100 and the two filter groups 300 are fastened to the circuit board 210 by means of the fastening rails 214 .
  • FIG. 9 shows a method 400 for changing the existing valve cartridge of a control device in a filter system.
  • the method 400 consists of a first step 410, a second step 420 and a third step 430.
  • the first step 410 consists in disconnecting the connections between the terminals and the external lines.
  • the second step 420 is to remove the existing valve cartridge from the controller.
  • the third step 430 consists in the insertion of a new valve cassette, which is structurally identical to the existing valve cassette, into the control device.

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  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)

Abstract

L'invention concerne un dispositif de commande (100) pour un système de filtre qui comprend une cartouche de vanne remplaçable comportant une pluralité de raccords (120) pour des conduites externes, le fluide pouvant être transporté dans les conduites externes, les raccords (120) étant reliés l'un à l'autre au moyen d'au moins une conduite interne, et au moins une vanne, la vanne pouvant être amenée dans un état fermé étanche aux fluides et dans un état ouvert laissant passer les fluides, la vanne étant reliée à la ou aux conduites internes de façon que lorsque la vanne est à l'état ouvert, un fluide peut être transporté à travers la ou les conduites internes, et lorsque la vanne est à l'état fermé, aucun fluide ne peut être transporté à travers la ou les conduites internes. Le dispositif de commande (100) comprend également un dispositif de réglage (160) qui comporte au moins un manipulateur de vanne (162), le manipulateur de vanne (162) pouvant être positionné et conçu de façon que la ou les vannes peuvent être amenées dans l'état ouvert et dans l'état fermé par le manipulateur de vanne (162).
PCT/EP2022/067430 2021-06-24 2022-06-24 Système de filtre, dispositif de commande et carte de circuits imprimés pour celui-ci et procédé de changement WO2022269076A1 (fr)

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EP22740337.5A EP4359691A1 (fr) 2021-06-24 2022-06-24 Système de filtre, dispositif de commande et carte de circuits imprimés pour celui-ci et procédé de changement

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DE102021116377.3 2021-06-24
DE102021116377.3A DE102021116377A1 (de) 2021-06-24 2021-06-24 Filtersystem, Steuerungsvorrichtung und Platine für dasselbe sowie Verfahren zum Wechsel

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1033145A (en) * 1962-12-11 1966-06-15 Westinghouse Brake & Signal Fluid flow control valves
FR2728059A1 (fr) * 1994-12-09 1996-06-14 Soudure Autogene Francaise Dispositif de commande de l'ecoulement de deux gaz et bruleur muni de ce dispositif
US5927332A (en) * 1995-03-29 1999-07-27 Richard; Jean-Claude Fluid dispensing device including at least one remote-controlled motor, particularly a water mixing valve
US20210102154A1 (en) * 2018-06-19 2021-04-08 Sartorius Stedim Biotech Gmbh Filter system for biopharmaceutical processes

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DK2155347T3 (da) 2007-04-17 2013-10-21 Xendo Holding B V Fremgangsmåde og apparat til kontinuerlig membranadsorption
EP3578522A1 (fr) 2010-12-06 2019-12-11 Pall Corporation Procédés de traitement continu pour produits biologiques

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1033145A (en) * 1962-12-11 1966-06-15 Westinghouse Brake & Signal Fluid flow control valves
FR2728059A1 (fr) * 1994-12-09 1996-06-14 Soudure Autogene Francaise Dispositif de commande de l'ecoulement de deux gaz et bruleur muni de ce dispositif
US5927332A (en) * 1995-03-29 1999-07-27 Richard; Jean-Claude Fluid dispensing device including at least one remote-controlled motor, particularly a water mixing valve
US20210102154A1 (en) * 2018-06-19 2021-04-08 Sartorius Stedim Biotech Gmbh Filter system for biopharmaceutical processes

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DE102021116377A1 (de) 2022-12-29

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