EP0321338B1 - Anzeigevorrichtung für den Membranbruch einer Membranpumpe - Google Patents
Anzeigevorrichtung für den Membranbruch einer Membranpumpe Download PDFInfo
- Publication number
- EP0321338B1 EP0321338B1 EP88403175A EP88403175A EP0321338B1 EP 0321338 B1 EP0321338 B1 EP 0321338B1 EP 88403175 A EP88403175 A EP 88403175A EP 88403175 A EP88403175 A EP 88403175A EP 0321338 B1 EP0321338 B1 EP 0321338B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- groove
- spacer
- pump
- diaphragm
- membranes
- 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.)
- Expired - Lifetime
Links
- 238000001514 detection method Methods 0.000 title description 3
- 125000006850 spacer group Chemical group 0.000 claims description 23
- 238000004891 communication Methods 0.000 claims description 5
- 230000002093 peripheral effect Effects 0.000 claims description 4
- 238000003754 machining Methods 0.000 claims 1
- 239000012528 membrane Substances 0.000 abstract description 28
- 238000005086 pumping Methods 0.000 abstract description 4
- 239000012530 fluid Substances 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 3
- 239000004810 polytetrafluoroethylene Substances 0.000 description 3
- 239000002131 composite material Substances 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- -1 polytetrafluoroethylene Polymers 0.000 description 1
Images
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
- F04B43/0081—Special features systems, control, safety measures
- F04B43/009—Special features systems, control, safety measures leakage control; pump systems with two flexible members; between the actuating element and the pumped fluid
Definitions
- the space which separates them is placed in communication with the outside of the pump by means of a pipe provided with a relief valve.
- a flow in the pipe is the sign of the rupture of a membrane.
- the practical implementation of this rupture detection comprises an annular spacer inserted between the peripheral parts of the two membranes.
- a radial conduit is formed in this spacer to lead to the space between the membranes. So that the outlet of this conduit is not blocked by the membranes - between which the volume has been reduced to a minimum during the operation of the pump - a groove is formed in the inner surface of the spacer which forms the peripheral end. of this space, and at the bottom of which opens the above-mentioned conduit.
- the two membranes and the intermediate spacer, sandwiched between them are fixed to the pump body by clamping between an annular bearing formed on the pump body (hydraulic control chamber side) and an annular bearing formed on the pump head (working chamber side) when the head and the body are assembled. More precisely, these ranges are provided on the front and rear grids for supporting the membranes at each of the extreme points of their travel.
- the invention intends to remedy this drawback by proposing an improved membrane rupture detection device which is also easier to manufacture and of lower cost.
- the subject of the invention is a device for detecting a rupture of a hydraulically actuated diaphragm pump diaphragm, consisting of an annular spacer sandwiched between the peripheral zones of at least two adjacent membranes, the assembly being clamped peripherally between two elements of the pump body, the annular spacer comprising at least one radial duct ensuring the communication of the space delimited by the two membranes and the exterior of the pump, in which the radial duct opens into a groove in the internal face of the annular spacer, the walls of the groove converging towards the center of the ring.
- the device according to the invention is easy to manufacture because, from a turned blank, it suffices to carry out an operation of pushing the two sides of the groove towards each other, to give them the desired external profile. while narrowing their spacing in order to prevent the penetration of the membrane material into this groove.
- the annular spacer 6 has an internal groove 13 whose volume is in communication with the interior space delimited by the membranes 1 and 2.
- This groove 13 communicates by at least one radial duct 14 with an external pipe which is not shown but which can be connected to the spacer by means of a screw or welded connection in the orifice 15, with, if necessary, the interposition of a non-return valve.
- This external pipe can lead to a membrane rupture detector constituted for example in the form of an alarm.
- each wall 13 a , 13 b of the groove 13 is urged towards each other.
- the communication gap of the throat with the inter-membrane space is therefore narrower than the width of the bottom of the groove 13. It follows that it is impossible for either of the membranes to penetrate into the groove 13 under the effect of the prevailing pressure in one or other of the chambers 9, 10.
- the outer surface of each wall 13 a , 13 b is curved, which gives the profile of the spacer 6 in the region of the groove 13, such that 'it appears in the axial section of the figure, the shape of a warhead.
- the walls 13 a and 13 b form a support of shape adapted to the curvature of the membrane which prohibits flexing thereof on a too small radius of curvature.
- the spacer has on its flanks circular grooves 16, in which the material of the membranes creeps when they are pinched.
- the support plates may have similar grooves to also accommodate the material which flows.
- This material can be polytetrafluoroethylene (PTFE) or in the case of composite membranes a layer of (PTFE) and a layer of elastomer.
- the invention finds an interesting application in the field of diaphragm pumps.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Reciprocating Pumps (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Claims (4)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT88403175T ATE61082T1 (de) | 1987-12-17 | 1988-12-14 | Anzeigevorrichtung fuer den membranbruch einer membranpumpe. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8717636A FR2624922B1 (fr) | 1987-12-17 | 1987-12-17 | Dispositif de detection de rupture d'une membrane de pompe a membrane |
FR8717636 | 1987-12-17 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0321338A1 EP0321338A1 (de) | 1989-06-21 |
EP0321338B1 true EP0321338B1 (de) | 1991-02-27 |
Family
ID=9357981
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP88403175A Expired - Lifetime EP0321338B1 (de) | 1987-12-17 | 1988-12-14 | Anzeigevorrichtung für den Membranbruch einer Membranpumpe |
Country Status (9)
Country | Link |
---|---|
US (1) | US4881876A (de) |
EP (1) | EP0321338B1 (de) |
JP (1) | JPH01200078A (de) |
AT (1) | ATE61082T1 (de) |
CA (1) | CA1284747C (de) |
DE (2) | DE321338T1 (de) |
ES (1) | ES2009734B3 (de) |
FR (1) | FR2624922B1 (de) |
GR (2) | GR890300133T1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7621296B2 (en) | 2006-06-16 | 2009-11-24 | Prominent Dosiertechnik Gmbh | Separation element |
Families Citing this family (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2657923B1 (fr) * | 1990-02-08 | 1994-06-10 | Milton Roy Dosapro | Perfectionnement a un dispositif detecteur de rupture de membrane dans une pompe a membrane double. |
ATE148202T1 (de) * | 1991-05-03 | 1997-02-15 | Regipur Polyurethan Anlagentec | Mehrlagen-membran mit leckage-ableitung für membranpumpen |
US5145331A (en) * | 1991-07-29 | 1992-09-08 | J. Wagner Gmbh | Diaphragm pump |
DE4136805A1 (de) * | 1991-11-08 | 1993-05-13 | Almatec Tech Innovationen Gmbh | Doppelmembranpumpe |
US5476368A (en) * | 1992-08-20 | 1995-12-19 | Ryder International Corporation | Sterile fluid pump diaphragm construction |
JPH074359A (ja) * | 1993-05-06 | 1995-01-10 | Almatec Technische Innovationen Gmbh | ポンプ用ダイヤフラム |
US6094970A (en) * | 1998-12-15 | 2000-08-01 | Milton Roy Company | Leak detector for a pump |
DE10233561B4 (de) * | 2002-07-24 | 2008-02-21 | Prominent Dosiertechnik Gmbh | Sicherheitsmembran für eine Membranpumpe |
DE202005001250U1 (de) * | 2005-01-26 | 2006-06-08 | GEMÜ Gebr. Müller Apparatebau GmbH & Co. KG | Membrane für Membranventil |
SE0900233A1 (sv) * | 2009-02-24 | 2010-08-25 | Tetra Laval Holdings & Finance | Membranpumphuvud för en homogenisator |
US8017409B2 (en) | 2009-05-29 | 2011-09-13 | Ecolab Usa Inc. | Microflow analytical system |
US8596648B2 (en) | 2010-10-22 | 2013-12-03 | Oshkosh Corporation | Pump for vehicle suspension system |
WO2013028714A1 (en) * | 2011-08-22 | 2013-02-28 | Cummins Emission Solutions Inc. | Urea injection systems wash cycles |
CN103352839A (zh) * | 2013-07-26 | 2013-10-16 | 胜瑞兰工业设备(苏州)有限公司 | 一种开槽金属薄片引导隔膜泄漏装置 |
MX2018011265A (es) * | 2016-03-18 | 2019-07-04 | Deka Products Lp | Empaques de control de presión para operación de membranas de casete de bomba. |
AU2017248349B2 (en) | 2016-04-08 | 2021-11-11 | Oshkosh Corporation | Leveling system for lift device |
DE102016216006A1 (de) * | 2016-08-25 | 2018-03-01 | Siemens Aktiengesellschaft | Doppelmembran für eine Staubpumpe |
DE102019109283A1 (de) | 2019-04-09 | 2020-10-15 | Prominent Gmbh | Membranbruchüberwachung |
IT201900008754A1 (it) * | 2019-06-12 | 2020-12-12 | Gea Mech Equipment Italia S P A | Pompa a doppia membrana per impiego in un apparato di omogeneizzazione di un prodotto fluido e metodo per rilevare perdite in tale pompa |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2662478A (en) * | 1950-01-31 | 1953-12-15 | Surre Francois Eugene | Diaphragm pump and compressor |
US3131638A (en) * | 1962-07-05 | 1964-05-05 | Lapp Insulator Company Inc | Leak detecting device |
DE1226740B (de) * | 1963-07-25 | 1966-10-13 | Hofer Andreas | Anzeigevorrichtung fuer den Membranbruch an Membranverdichtern |
FR1552305A (de) * | 1967-12-15 | 1969-01-03 | ||
US3661060A (en) * | 1970-08-05 | 1972-05-09 | Duriron Co | Diaphragms for high pressure compressors and pumps |
DE3146222C2 (de) * | 1981-11-21 | 1983-12-22 | Franz 6305 Buseck Orlita | Membranpumpe mit einer Membranbruchanzeigevorrichtung |
FR2533636B1 (fr) * | 1982-09-28 | 1987-03-20 | Milton Roy Dosapro | Dispositif de detection de rupture de membrane |
US4569634A (en) * | 1984-09-27 | 1986-02-11 | Mantell Myron E | Failure sensing diaphragm for a diaphragm pump |
US4787825A (en) * | 1984-09-27 | 1988-11-29 | Myron Mantell | Failure sensing device for a diaphragm pump |
US4781535A (en) * | 1987-11-13 | 1988-11-01 | Pulsafeeder, Inc. | Apparatus and method for sensing diaphragm failures in reciprocating pumps |
-
1987
- 1987-12-17 FR FR8717636A patent/FR2624922B1/fr not_active Expired - Lifetime
-
1988
- 1988-12-14 AT AT88403175T patent/ATE61082T1/de active
- 1988-12-14 EP EP88403175A patent/EP0321338B1/de not_active Expired - Lifetime
- 1988-12-14 DE DE198888403175T patent/DE321338T1/de active Pending
- 1988-12-14 DE DE8888403175T patent/DE3861851D1/de not_active Expired - Lifetime
- 1988-12-14 ES ES88403175T patent/ES2009734B3/es not_active Expired - Lifetime
- 1988-12-14 US US07/284,629 patent/US4881876A/en not_active Expired - Fee Related
- 1988-12-15 JP JP63315198A patent/JPH01200078A/ja active Pending
- 1988-12-16 CA CA000586115A patent/CA1284747C/fr not_active Expired - Lifetime
-
1990
- 1990-01-19 GR GR89300133T patent/GR890300133T1/el unknown
-
1991
- 1991-03-29 GR GR91400344T patent/GR3001689T3/el unknown
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7621296B2 (en) | 2006-06-16 | 2009-11-24 | Prominent Dosiertechnik Gmbh | Separation element |
Also Published As
Publication number | Publication date |
---|---|
GR3001689T3 (en) | 1992-11-23 |
CA1284747C (fr) | 1991-06-11 |
FR2624922B1 (fr) | 1990-04-27 |
ES2009734A4 (es) | 1989-10-16 |
ATE61082T1 (de) | 1991-03-15 |
JPH01200078A (ja) | 1989-08-11 |
EP0321338A1 (de) | 1989-06-21 |
ES2009734B3 (es) | 1991-10-16 |
FR2624922A1 (fr) | 1989-06-23 |
US4881876A (en) | 1989-11-21 |
DE3861851D1 (de) | 1991-04-04 |
GR890300133T1 (en) | 1990-01-19 |
DE321338T1 (de) | 1989-11-16 |
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