EP1520988A1 - Pompe à membrane à actionnement hydraulique - Google Patents

Pompe à membrane à actionnement hydraulique Download PDF

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Publication number
EP1520988A1
EP1520988A1 EP03022050A EP03022050A EP1520988A1 EP 1520988 A1 EP1520988 A1 EP 1520988A1 EP 03022050 A EP03022050 A EP 03022050A EP 03022050 A EP03022050 A EP 03022050A EP 1520988 A1 EP1520988 A1 EP 1520988A1
Authority
EP
European Patent Office
Prior art keywords
membrane
piston pump
housing
pump according
control plate
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
EP03022050A
Other languages
German (de)
English (en)
Other versions
EP1520988B1 (fr
Inventor
Heinz M. Nägel
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Feluwa Pumpen GmbH
Original Assignee
Feluwa Pumpen 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 Feluwa Pumpen GmbH filed Critical Feluwa Pumpen GmbH
Priority to EP03022050A priority Critical patent/EP1520988B1/fr
Priority to DE50302222T priority patent/DE50302222D1/de
Priority to AT03022050T priority patent/ATE316208T1/de
Publication of EP1520988A1 publication Critical patent/EP1520988A1/fr
Application granted granted Critical
Publication of EP1520988B1 publication Critical patent/EP1520988B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • F04B43/08—Machines, pumps, or pumping installations having flexible working members having tubular flexible members
    • F04B43/10—Pumps having fluid drive
    • F04B43/107—Pumps having fluid drive the fluid being actuated directly by a piston

Definitions

  • the present invention relates to a hose diaphragm piston pump with a housing, one arranged in the housing Hose membrane, the inside a displacement chamber and on the outside with the housing wall one Annulus forms, which filled with a reference liquid and with the pressure chamber of a cylinder / piston arrangement below Forming a hydraulic fluid chamber connected or is connectable, and containing a reference liquid Reservoir, which with the hydraulic fluid space over a valve assembly is connected or connectable, the via a control plate protruding into the annular space be actuated by the expanding tube membrane can, to the hydraulic fluid chamber original liquid supply the reservoir.
  • a hose diaphragm piston pump of this kind is from the DE 34 43 768 C2 known. It is as a double-tube diaphragm piston pump trained and owns one Housing in which a double-tube membrane is provided is, wherein the inner tube membrane a displacement space defines for the fluid to be delivered, which end by oppositely acting check valves closed or closed.
  • the between the outer Hose diaphragm and the housing wall formed Annulus is via a line with the cylinder space one Cylinder / piston assembly connected, wherein the annulus, the line and the cylinder chamber a hydraulic fluid space make the piston pump, which with a reference liquid is filled.
  • the annulus of the housing in the course of reciprocating movement of the piston supplied in a pressure stroke hydraulic fluid or in a Subsequent suction stroke hydraulic fluid withdrawn.
  • Double-tube diaphragm piston pump Prerequisite for a perfect function of the known Double-tube diaphragm piston pump is that one always constant amount of hydraulic fluid (Original liquid) is available, which is why it is required is, leakage losses, for example, on Pistons may occur, align.
  • a reservoir from which the hydraulic fluid space Priming liquid can be supplied in case of need can.
  • a pushbutton provided, which operates when the double-tube membrane becomes Suction stroke due to a lack of original liquid extends beyond a normal state.
  • hose diaphragm piston pump specify the type mentioned, with which it is possible is, an undesirable tracking of original liquid to avoid.
  • the Housing at least on its the control plate opposite Side a projecting into the housing support surface for the hose membrane, on which the Tubing membrane comes into abutment when the tubing membrane widened beyond a normal dimension during a suction process becomes.
  • the invention is therefore based on the consideration, an unwanted deformation of the tube membrane to prevent the suction stroke by pulling the tube membrane up her the control plate opposite side of the According to the invention provided support surface comes into contact and thus prevented from widening in this direction becomes. It has been shown that by the support the deformation of the tube membrane in controlled and reproducible manner, so that an actuation the control plate and thus a tracking of hydraulic fluid (Original liquid) takes place only if actually too little original liquid in the hydraulic fluid space is available. As a result, a reliable and accurate operation of the invention Hose diaphragm piston pump can be ensured.
  • the support surface is formed so that the hose diaphragm can lay flat on it. at the usually elongated formation of tubular membranes then becomes the support surface in the longitudinal direction the hose membrane be elongated, wherein they are in their control plate immediately opposite Area has its greatest width.
  • the support surface is preferably bulbous, wherein they are in their control plate immediately opposite Range furthest in the direction of the control plate protruding into the housing and towards its edge areas especially flattening evenly.
  • Pump is provided that the housing wall to the control plate around as in the housing projecting support surface is formed such that the hose membrane to the support surface comes to rest when the control plate located in its outer end position.
  • valve arrangement can be actuated via the control plate Switching valve and actuated by the switching valve Supplementary valve to open the line between having the reservoir and the hydraulic fluid chamber. Due to the fact that the operation of the supplementary valve over the switching valve takes place is in this embodiment a mechanical locking of the supplementary valve via the switching valve made so that incorrect operations of the Supplementary valve be excluded. For the rest, can the valve assembly having a pressure relief valve over which original liquid from the hydraulic fluid chamber in the reservoir can be returned.
  • the hose membrane of the pump according to the invention is according to a preferred embodiment as a double-tube membrane formed by two concentric formed individual hose membranes arranged one another is, with the annulus between the tube membranes filled with a liquid.
  • the inner tube membrane consist of a PTFE material.
  • Spacer elements in the form of, for example Projections, pimples, roughening and the like formed be on the inside wall of the other tube membrane come into contact to the coupling of the two To support hose membranes.
  • the between the tube membranes formed gap with a tube break indicator be connected.
  • FIG. 1 shows a double-tube membrane piston pump 1 represented according to the present invention.
  • the pump 1 has an elongated housing 2, in which a double-tube membrane 3 is arranged, extending over the entire Housing length extends.
  • the double tube membrane 3 consists of two individual tube membranes 4, 5, the arranged concentrically to one another and over the end provided bead rings 6, 7 clamped in the housing 2 are.
  • the housing 2 is in its end with corresponding mounting flanges 8, 9, 10, 11 provided.
  • the inner tube membrane 4 defines a displacement space 12 or flow channel for the promotional Fluid, which at its two ends by against the Direction of flow A acting check valves 13, 14 completed is.
  • cams 15 In the housing of the check valves 13, 14 are cams 15 with bars, which are the hub of Limit valve balls 16 and collect them centrically, so that the valve balls 16 centric to their seat can go back again.
  • the outer tube membrane 5 forms with the housing wall an annular space 17, which with a reference liquid is filled as hydraulic fluid.
  • the annular space 17 is above an opening 18 in the housing wall and a not shown connecting line in itself known manner with the cylinder chamber 19 a only schematically illustrated cylinder / piston assembly 20 in conjunction, the annulus 17, the conduit and the cylinder space 19 define a hydraulic fluid space of the pump 1.
  • the piston 21 of the cylinder / piston assembly 20th can be driven in a reciprocating stroke in a suction stroke Master liquid from the annular space 17 in the cylinder chamber 19 suck in (see Figure 1) and then in reverse manner in a pressure stroke the original liquid to pump out of the cylinder chamber 19 in the annular space 17 (see Figure 2). It is during the suction stroke in the Annular space 17 generates a negative pressure, through which the Double-tube diaphragm 3 is widened.
  • the volume of the annular space 17 is increased while the double tube membrane 3 compressed.
  • a reservoir only schematically illustrated 22 provided to the connecting line between the annulus 17 and the cylinder / piston assembly 20 is connected via a valve arrangement 23.
  • the Valve assembly 23 includes on the one hand as a switching valve trained leakage valve 24 and a coupled thereto Supplementary valve 25, which is normally closed, however, if necessary opened by the leakage valve 24 can be to the hydraulic fluid chamber original liquid supply from the reservoir 22.
  • the valve assembly 23 comprises a pressure relief valve 26, over which at too high a pressure in the hydraulic fluid space Original liquid back into the storage tank 22 can get.
  • control plate 27 To actuate the leakage valve 24 is an actuator provided in the form of a control plate 27, which in the annular space 17 protrudes.
  • the control plate 27 is in only schematically illustrated way transverse to the longitudinal direction of the housing 2 is movably guided and is shown in the Starting position by a helical compression spring 30th biased.
  • the support surface 28th in the middle a relatively narrow, strongly protruding area 28a, on the outside a larger, flatter running Section 28b connects.
  • the support surface 28 is here trained in the manner that they are in their the center Z of the control plate 27 opposite area protrudes furthest in the direction of the control plate 27 and drops evenly towards its edge regions.
  • Figures 1 and 8 also show that also the area of the housing wall around the opening 18 around is formed as a support surface 29. This is so formed, that the double-tube membrane 3 at the curved End face of the control plate 27 and the support surface 29 flat comes into contact when the control plate 27 reaches its right end position, in which he the opening 18 closes.
  • the Support surface 29 as well as the control plate 27 opposite Support surface 28 elongated oval, being symmetrical with respect to their longitudinal and transverse axes is formed and the vaulting tip of the control plate 27 the furthest in the housing 2 above Point forms.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Reciprocating Pumps (AREA)
EP03022050A 2003-10-01 2003-10-01 Pompe à membrane à actionnement hydraulique Expired - Lifetime EP1520988B1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP03022050A EP1520988B1 (fr) 2003-10-01 2003-10-01 Pompe à membrane à actionnement hydraulique
DE50302222T DE50302222D1 (de) 2003-10-01 2003-10-01 Schlauchmembran-kolbenpumpe
AT03022050T ATE316208T1 (de) 2003-10-01 2003-10-01 Schlauchmembran-kolbenpumpe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP03022050A EP1520988B1 (fr) 2003-10-01 2003-10-01 Pompe à membrane à actionnement hydraulique

Publications (2)

Publication Number Publication Date
EP1520988A1 true EP1520988A1 (fr) 2005-04-06
EP1520988B1 EP1520988B1 (fr) 2006-01-18

Family

ID=34306797

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03022050A Expired - Lifetime EP1520988B1 (fr) 2003-10-01 2003-10-01 Pompe à membrane à actionnement hydraulique

Country Status (3)

Country Link
EP (1) EP1520988B1 (fr)
AT (1) ATE316208T1 (fr)
DE (1) DE50302222D1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202010008298U1 (de) 2009-08-24 2010-12-30 Elekton Ltd Membranpumpenaggregat
BG1407U1 (bg) * 2009-08-24 2011-01-31 Закрытое акционерное общество "Электон" Диафрагмен помпен агрегат
WO2012119597A1 (fr) * 2011-03-04 2012-09-13 Feluwa Pumpen Gmbh Pompe de process à double membrane tubulaire
RU2649176C1 (ru) * 2017-03-20 2018-03-30 Ольга Иосифовна Логинова Плунжерный насос
EP2531729A4 (fr) * 2010-02-02 2018-04-11 Peter Van De Velde Système de commande de fluide hydraulique pour une pompe à diaphragme
CN115817900A (zh) * 2023-02-16 2023-03-21 蓬莱京鲁渔业有限公司 一种食品加工用真空封口机

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8152476B2 (en) 2007-08-24 2012-04-10 Toyo Pumps North America Corp. Positive displacement pump with a working fluid and linear motor control
DE102010038225B4 (de) 2010-10-15 2014-03-27 Feluwa Pumpen Gmbh Schlauchmembran-Prozeßpumpe

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2478568A (en) * 1946-03-08 1949-08-09 Harrison S Coe Pumping apparatus
DE3210240A1 (de) * 1982-03-20 1983-10-06 Heinz M Naegel Membran-verdraengerpumpe
DE3443768A1 (de) * 1984-06-13 1985-12-19 Feluwa Schlesiger & Co KG, 5531 Mürlenbach Schlauch-kolbenpumpe
WO2002018790A1 (fr) * 2000-08-28 2002-03-07 Precision Dispensing Systems Limited Mecanisme de pincement pneumatique pour tube deformable

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2478568A (en) * 1946-03-08 1949-08-09 Harrison S Coe Pumping apparatus
DE3210240A1 (de) * 1982-03-20 1983-10-06 Heinz M Naegel Membran-verdraengerpumpe
DE3443768A1 (de) * 1984-06-13 1985-12-19 Feluwa Schlesiger & Co KG, 5531 Mürlenbach Schlauch-kolbenpumpe
WO2002018790A1 (fr) * 2000-08-28 2002-03-07 Precision Dispensing Systems Limited Mecanisme de pincement pneumatique pour tube deformable

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202010008298U1 (de) 2009-08-24 2010-12-30 Elekton Ltd Membranpumpenaggregat
BG1407U1 (bg) * 2009-08-24 2011-01-31 Закрытое акционерное общество "Электон" Диафрагмен помпен агрегат
EP2531729A4 (fr) * 2010-02-02 2018-04-11 Peter Van De Velde Système de commande de fluide hydraulique pour une pompe à diaphragme
WO2012119597A1 (fr) * 2011-03-04 2012-09-13 Feluwa Pumpen Gmbh Pompe de process à double membrane tubulaire
RU2649176C1 (ru) * 2017-03-20 2018-03-30 Ольга Иосифовна Логинова Плунжерный насос
CN115817900A (zh) * 2023-02-16 2023-03-21 蓬莱京鲁渔业有限公司 一种食品加工用真空封口机

Also Published As

Publication number Publication date
ATE316208T1 (de) 2006-02-15
EP1520988B1 (fr) 2006-01-18
DE50302222D1 (de) 2006-04-06

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