WO2009024619A4 - High pressure double membrane pump and membrane element for such a pump - Google Patents

High pressure double membrane pump and membrane element for such a pump Download PDF

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Publication number
WO2009024619A4
WO2009024619A4 PCT/EP2008/061052 EP2008061052W WO2009024619A4 WO 2009024619 A4 WO2009024619 A4 WO 2009024619A4 EP 2008061052 W EP2008061052 W EP 2008061052W WO 2009024619 A4 WO2009024619 A4 WO 2009024619A4
Authority
WO
WIPO (PCT)
Prior art keywords
membrane
diameter
diaphragm pump
pressure
coupling rod
Prior art date
Application number
PCT/EP2008/061052
Other languages
German (de)
French (fr)
Other versions
WO2009024619A1 (en
Inventor
Herbert Timmer
Original Assignee
Timmer Pneumatik Gmbh
Herbert Timmer
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 Timmer Pneumatik Gmbh, Herbert Timmer filed Critical Timmer Pneumatik Gmbh
Priority to US12/674,453 priority Critical patent/US20110229352A1/en
Priority to EP08803172A priority patent/EP2179177A1/en
Priority to DE202008017904U priority patent/DE202008017904U1/en
Publication of WO2009024619A1 publication Critical patent/WO2009024619A1/en
Publication of WO2009024619A4 publication Critical patent/WO2009024619A4/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B43/00—Machines, pumps, or pumping installations having flexible working members
    • F04B43/0009—Special features
    • F04B43/0054—Special features particularities of the flexible members
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B43/00—Machines, pumps, or pumping installations having flexible working members
    • F04B43/02—Machines, pumps, or pumping installations having flexible working members having plate-like flexible members, e.g. diaphragms
    • F04B43/06—Pumps having fluid drive
    • F04B43/073—Pumps having fluid drive the actuating fluid being controlled by at least one valve
    • F04B43/0736—Pumps having fluid drive the actuating fluid being controlled by at least one valve with two or more pumping chambers in parallel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B9/00—Piston machines or pumps characterised by the driving or driven means to or from their working members
    • F04B9/08—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid
    • F04B9/12—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being elastic, e.g. steam or air
    • F04B9/129—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being elastic, e.g. steam or air having plural pumping chambers
    • F04B9/131—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being elastic, e.g. steam or air having plural pumping chambers with two mechanically connected pumping members
    • F04B9/133—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being elastic, e.g. steam or air having plural pumping chambers with two mechanically connected pumping members reciprocating movement of the pumping members being obtained by a double-acting elastic-fluid motor

Abstract

A high pressure double membrane pump has a central housing (3), two cylindrical pump chambers (7,8), a coupling rod (4) which moves back and forth when the pump is in operation and which has a pump piston (9), two membranes which divide each of the pump chambers (7,8) into a product chamber (11,12) and a compressed air chamber (1,2) with changing volumes of which the membranes have a peripherally mounted membrane body (15). In the central area of the membrane body (15) a rigid implant body (17) is embedded which is equipped with a dog (18) which is connected to one end of the coupling rod (4), and a pneumatic control unit for the alternating impinging of compressed air upon the compressed air chambers. In the area of the compressed air chambers (1,2) a rigid supporting ring (20) is pushed onto the dog (18) between the end of the coupling rod (4) and the inner side of the membrane (5). The diameter of said supporting ring is between 50% and 95% of the diameter of the working surface of the membrane (5), and the periphery thereof is formed as a rounded shoulder (21) facing away from the membrane body (15).

Claims

GEÄNDERTE ANSPRÜCHE beim Internationalen Büro eingegangen am 26. Januar 2009 (26.01.2009)Patentansprüche vom 26.01.2009: AMENDED CLAIMS received by the International Bureau on 26 January 2009 (26.01.2009) Claims of 26.01.2009:
1. Hochdruck-Doppelmembranpumpe mit1. High pressure double diaphragm pump with
■ einem Zentralgehäuse (3) , ■ a central housing (3),
" zwei zylindrischen Pumpkammern (7, 8) ,"two cylindrical pumping chambers (7, 8),
■ einer im Pumpbetrieb hin- und hergehenden Koppelstange (4) mit Pumpkolben (9), ■ a back and forth in pumping mode coupling rod (4) with a pump piston (9),
■ zwei je eine der Pumpkammern (7,8) in eine Produkt- (11, 12) und eine Druckluftkammer (1,2) mit wechselndem Volumina aufteilende Membranen (5,6), deren elastomerer Membrankörper (15) peripher eingespannt ist, wobei im zentralen Bereich des Membrankörpers (15) ein starrer Implantatkörper (17) eingebettet ist, der mit einem Zapfen (18) versehen ist, der mit einem Ende der Koppelstange (4) verbunden ist, ■ two each one of the pumping chambers (7,8) in a product (11, 12) and a compressed air chamber (1,2) with changing volumes dividing membranes (5,6) whose elastomeric membrane body (15) is peripherally clamped, wherein in the central region of the membrane body (15) a rigid implant body (17) is embedded, which is provided with a pin (18) which is connected to one end of the coupling rod (4),
■ einer pneumatischen Steuereinheit zur wechselnden Beaufschlagung der Druckluftkammern mit Druckluft, dadurch gekennzeichnet, dass zum Erhalt der Funktionsfähigkeit der Membranpumpe oberhalb eines Druckverhältnisses von Luftdruck zu Produktdruck von 1 : 3 im Bereich der Druckluftkammern (1,2) je eine starre Stützscheibe (20) zwischen dem Ende der Koppelstange (4) und der Innenseite der Membran (5) auf den Zapfen (18) aufgeschoben ist, deren Durchmesser zwischen 50% und 95 % des Durchmessers der Arbeitsfläche der Membran (5) beträgt und deren Periphe- rie als eine von dem Membrankörper (15) abgewandt gerundete Schulter (21) geformt ist. ■ a pneumatic control unit for alternating pressurization of the compressed air chambers with compressed air, characterized in that to maintain the operability of the diaphragm pump above a pressure ratio of air pressure to product pressure of 1: 3 in the compressed air chambers (1,2) each have a rigid support disk (20) between the end of the coupling rod (4) and the inside of the membrane (5) is pushed onto the pin (18) whose diameter is between 50% and 95% of the diameter of the working surface of the membrane (5) and whose peripheral Rie is formed as a side facing away from the membrane body (15) rounded shoulder (21).
2. Hochdruck-Doppelmembranpumpe nach Anspruch 1, dadurch gekennzeichnet, dass im Pumpbetrieb die Membranpumpe mit einem Druckverhältnis von Luftdruck zu Produktdruck im Verhältnis von 1 : 3 zu 1 : 6 arbeitet.2. High-pressure double diaphragm pump according to claim 1, characterized in that in the pumping operation, the diaphragm pump with a pressure ratio of air pressure to product pressure in the ratio of 1: 3 to 1: 6 works.
3. Hochdruck-Doppelmembranpumpe nach Anspruch 1, dadurch gekennzeichnet, dass der Durchmesser der Stützscheibe (20) zwischen 70 und 85 % des Durchmessers der Arbeitsfläche der Membran ist.3. High-pressure double diaphragm pump according to claim 1, characterized in that the diameter of the support disc (20) is between 70 and 85% of the diameter of the working surface of the membrane.
4. Hochdruck-Doppelmembranpumpe nach Anspruch 1 oder 3, dadurch gekennzeichnet, dass der Durchmesser der Stützscheibe (20) größer ist als der Durchmesser des Implantatkorpers .4. High-pressure double diaphragm pump according to claim 1 or 3, characterized in that the diameter of the support disk (20) is greater than the diameter of the implant body.
5. Hochdruck-Doppelmembranpumpe nach Anspruch 4, dadurch gekennzeichnet, dass der Durchmesser der Stützscheibe (20) 150 bis 210 % des Durchmessers des Implantatkörpers beträgt.5. High-pressure double diaphragm pump according to claim 4, characterized in that the diameter of the support disc (20) is 150 to 210% of the diameter of the implant body.
6. Hochdruck-Doppelmembranpumpe nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Stützscheibe (20) mit einer Zentralöffnung (22) versehen ist, die eine Bewegung des Zapfens (18) in Richtung der Bewegungsachse (A) der Koppelstange (4) erlaubt . 6. High-pressure double diaphragm pump according to one of the preceding claims, characterized in that the support disc (20) is provided with a central opening (22) which allows movement of the pin (18) in the direction of the axis of movement (A) of the coupling rod (4) ,
7. Hochdruck-Doppelmembranpumpe nach Anspruch 1 bis 6, dadurch gekennzeichnet, dass die Schulter (21) von einem flachen Mittelbereich der Stützscheibe (20) ausgeht und im Querschnitt in einen Teilkreis ausläuft.7. High-pressure double diaphragm pump according to claim 1 to 6, characterized in that the shoulder (21) starts from a flat central region of the support disc (20) and terminates in cross section in a pitch circle.
8. Hochdruck-Doppelmembranpumpe nach Anspruch 1, dadurch gekennzeichnet, dass der Teilkreis der Schulter in eine Schrägfläche ausläuft, wobei - im Querschnitt gesehen - eine Tangente (T) an die Schrägfläche in deren Endpunkt einen Winkel von 20 bis 60° mit der Bewegungsachse (A) der Koppelstange einschließt .8. High-pressure double diaphragm pump according to claim 1, characterized in that the pitch circle of the shoulder terminates in an inclined surface, wherein - seen in cross section - a tangent (T) to the inclined surface in its end point an angle of 20 to 60 ° with the axis of movement ( A) includes the coupling rod.
9. Hochdruck-Doppelmembranpumpe nach einem der vorhergehenden Ansprüche, mit einem untertassenförmig zur Luftkammer hin gewölbten Membrankörper (15) , dadurch gekennzeichnet, dass die Stützscheibe (20) in den konkaven Bereich der Membranwölbung eingelegt ist und sich der Membran-Außenringbereich bei Druckbeaufschlagung um die Schulter (21) schmiegt.9. High-pressure double diaphragm pump according to one of the preceding claims, with a saucer-shaped to the air chamber curved diaphragm body (15), characterized in that the support disc (20) is inserted into the concave portion of the membrane curvature and the membrane outer ring area when pressurized to the Shoulder (21) nestles.
10. Hochdruck-Doppelmembranpumpe nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Stützscheibe Ausschnitte oder Materialverdünnungen aufweist.10. High-pressure double diaphragm pump according to one of the preceding claims, characterized in that the support disk has cutouts or material dilutions.
11. Hochdruck-Doppelmembranpumpe nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die zur Membran zeigende Außenseite der Stützscheibe glatt ist. 11. High-pressure double diaphragm pump according to one of the preceding claims, characterized in that the membrane facing the outside of the support disk is smooth.
12.Membranelement für eine oberhalb eines Druckverhältnisses von Luftdruck zu Produktdruck von 1 : 3 funktionsfähige Hochdruck-Doppelmembranpumpe, das eine der Pumpkamraern in eine Produkt- und eine Druckluftkammer mit wechselndem Volumina aufteilt und aus der eigentlichen Membran, deren elastomerer Membrankörper peripher eingespannt ist, wobei im zentralen Bereich des Membrankόrpers ein starrer Implantatkörper eingebettet ist, der mit einem Zapfen versehen ist, der mit einem Ende der Koppelstange verbunden ist, und einer starren Stützscheibe besteht, die zwischen dem Ende der Koppelstange und der Innenseite der Membran auf den Zapfen aufgeschoben ist, deren Durchmesser zwischen 50% und 95 % des Durchmessers der Arbeitsfläche der Membran beträgt und deren Peripherie als eine von dem Membrankörper abgewandt gerundete Schulter geformt ist.12.Membranelement element for above a pressure ratio of air pressure to product pressure of 1: 3 functional high-pressure double diaphragm pump, which divides one of the pump chamber into a product and a compressed air chamber with varying volumes and from the actual membrane whose elastomeric membrane body is peripherally clamped, wherein a rigid implant body is embedded in the central region of the membrane body, which is provided with a pin which is connected to one end of the coupling rod, and a rigid support disc which is pushed onto the journal between the end of the coupling rod and the inside of the membrane, the diameter of which is between 50% and 95% of the diameter of the working surface of the membrane and whose periphery is shaped as a shoulder rounded away from the membrane body.
13.Membranelement nach Anspruch 12, dadurch gekennzeichnet, dass der Durchmesser der Stützscheibe 150 bis 210 % des Durchmessers des Implantatkörpers beträgt .13.Membranelement element according to claim 12, characterized in that the diameter of the support disk is 150 to 210% of the diameter of the implant body.
14.Membranelement nach Anspruch 12, dadurch gekennzeichnet, dass die Schulter von einem flachen Mittelbereich der Stützscheibe ausgeht und im Querschnitt in einen Teilkreis ausläuft, der in eine Schrägfläche ausläuft, wobei - im Querschnitt gesehen - eine Tangente an die Schrägfläche in deren Endpunkt einen Winkel von 20 bis 60° mit der Bewegungsachse der Koppelstange einschließt. 14.Membranelement element according to claim 12, characterized in that the shoulder emanating from a flat central region of the support disk and terminates in cross section in a pitch circle, which terminates in an inclined surface, wherein - seen in cross section - a tangent to the inclined surface in the end point of an angle from 20 to 60 ° with the axis of movement of the coupling rod.
5.Membranelement nach einem der vorhergehenden Ansprüche 12 bis 14, mit einem untertassenförmig zur Luftkammer hin gewölbten Membrankörper, dadurch gekennzeichnet, dass die Stützscheibe in den konkaven Bereich der Membranwölbung eingelegt ist und sich der Membran-Außenringbereich bei Druckbeaufschlagung um die Schulter schmiegt. 5.Membranelement according to any one of the preceding claims 12 to 14, with a saucer-shaped curved toward the air chamber membrane body, characterized in that the support disk is inserted into the concave portion of the membrane curvature and the membrane outer ring region nestles when pressurized around the shoulder.
PCT/EP2008/061052 2007-08-23 2008-08-22 High pressure double membrane pump and membrane element for such a pump WO2009024619A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US12/674,453 US20110229352A1 (en) 2007-08-23 2008-08-22 High Pressure Double Membrane Pump and Membrane Element for Such a Pump
EP08803172A EP2179177A1 (en) 2007-08-23 2008-08-22 High pressure double membrane pump and membrane element for such a pump
DE202008017904U DE202008017904U1 (en) 2007-08-23 2008-08-22 High pressure double diaphragm pump and diaphragm element for such a pump

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102007039964A DE102007039964B4 (en) 2007-08-23 2007-08-23 High pressure double diaphragm pump and diaphragm element for such a pump
DE102007039964.4 2007-08-23

Publications (2)

Publication Number Publication Date
WO2009024619A1 WO2009024619A1 (en) 2009-02-26
WO2009024619A4 true WO2009024619A4 (en) 2009-04-23

Family

ID=39938235

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2008/061052 WO2009024619A1 (en) 2007-08-23 2008-08-22 High pressure double membrane pump and membrane element for such a pump

Country Status (4)

Country Link
US (1) US20110229352A1 (en)
EP (1) EP2179177A1 (en)
DE (2) DE102007039964B4 (en)
WO (1) WO2009024619A1 (en)

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Also Published As

Publication number Publication date
DE202008017904U1 (en) 2010-11-11
WO2009024619A1 (en) 2009-02-26
EP2179177A1 (en) 2010-04-28
US20110229352A1 (en) 2011-09-22
DE102007039964B4 (en) 2011-06-22
DE102007039964A1 (en) 2009-02-26

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