EP0059937B1 - Pompe à membrane, notamment pour le contrôle du niveau de l'eau aux chantiers - Google Patents

Pompe à membrane, notamment pour le contrôle du niveau de l'eau aux chantiers Download PDF

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Publication number
EP0059937B1
EP0059937B1 EP82101652A EP82101652A EP0059937B1 EP 0059937 B1 EP0059937 B1 EP 0059937B1 EP 82101652 A EP82101652 A EP 82101652A EP 82101652 A EP82101652 A EP 82101652A EP 0059937 B1 EP0059937 B1 EP 0059937B1
Authority
EP
European Patent Office
Prior art keywords
chamber
diaphragm
pump
diaphragm pump
flow chamber
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
Application number
EP82101652A
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German (de)
English (en)
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EP0059937A1 (fr
Inventor
Gerd Bruns
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.)
Individual
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Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to AT82101652T priority Critical patent/ATE16037T1/de
Publication of EP0059937A1 publication Critical patent/EP0059937A1/fr
Application granted granted Critical
Publication of EP0059937B1 publication Critical patent/EP0059937B1/fr
Expired 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
    • F04B43/02—Machines, pumps, or pumping installations having flexible working members having plate-like flexible members, e.g. diaphragms
    • F04B43/025—Machines, pumps, or pumping installations having flexible working members having plate-like flexible members, e.g. diaphragms two or more plate-like pumping members in parallel
    • F04B43/026—Machines, pumps, or pumping installations having flexible working members having plate-like flexible members, e.g. diaphragms two or more plate-like pumping members in parallel each plate-like pumping flexible member working in its own pumping chamber

Definitions

  • the invention relates to a diaphragm pump, preferably double-diaphragm pump, in particular for water drainage on construction sites, in which flexible membranes inclined in a V-shape with respect to one another are arranged next to one another, each enclosing housings equipped with a suction and discharge nozzle and housed by plungers coupled to a driven crank are reciprocable.
  • a double diaphragm pump of the aforementioned type is known from German patent 871 246.
  • Each pump chamber of the known diaphragm pump has an inlet connection with an inlet valve in the lower region, and the outlet connection with an outlet valve is arranged above the pump chamber.
  • Solids suspended in the pump water sucked in can therefore collect and deposit in the known pump in the area of the inlet valve in the pump chamber.
  • the diaphragm is part of the wall of the pump chamber, so that the suctioned water enters the pump chamber with admixtures of solids during a pump stroke.
  • the suction stroke of the diaphragm has ended, at its top dead center, the content of the pump chamber calms down, whereby the suspended solids, above all coarser solids, settle in the area of the inlet valve of the pump chamber.
  • the space of the pump chamber is reduced, and the water in the pump chamber is pressed to the outlet valve located above the pump chamber. Solids that may have been swept away again, which have not yet passed the outlet valve as soon as the pressure stroke is reversed, fall back into the pump chamber in order to additionally settle on the inlet valve.
  • the invention has for its object to improve a diaphragm pump of the type in question in terms of operational reliability.
  • each pump chamber is divided into a relatively short flow chamber having the pressure and the suction nozzle and a diaphragm chamber arranged essentially separately therefrom, that the flow chamber is arranged at the lowest point of the section of the housing enclosing the diaphragm chamber and that the membrane chamber thus located high in the housing is connected to the flow chamber via a lower opening.
  • the resulting structural separation of the diaphragm chamber and the flow chamber, the outlet valve not being located above the diaphragm chamber, has the advantage that the aspirated liquid content of the diaphragm chamber flows through the flow channel in a sharp flow with each pressure stroke and there through its lower arrangement with respect to the diaphragm chamber in particular Washed area of the inlet valve. Solids deposited at the inlet valve are thus washed out of the flow channel with each pressure stroke.
  • a flow chamber that is as short as possible has the advantage that the volume of the membrane chamber can be a multiple of the volume of the flow chamber, so that it flows through extremely sharply and is flushed away from deposited solids.
  • the special lateral arrangement of the diaphragm chambers also has the advantage that the diaphragms are easily accessible from the outside and, if necessary, these wear parts can be replaced without having to carry out difficult assembly work in the bulky center of the pump, which is quite built up with rods, drive elements and pipes , as is the case with the known pump according to DE-PS 871 246.
  • the flanges between the flow chamber and the pressure or suction section are designed as sealing seats for valve balls of the check valves.
  • This measure has the advantage that worn sealing seats can be easily replaced.
  • the use of the interposed rubber sealing rings as a sealing seat is particularly advantageous because special sealing seat elements can be omitted.
  • rubber sealing rings with a smaller width than the nominal width of the flanges or sockets are used, so that the inwardly projecting areas of the sealing ring form contact edges for the valve balls which act as a check valve.
  • the multi-stage pump is not limited to the arrangement of two housings.
  • Four, six or eight housings can also be arranged on a base frame to save space. It is also possible to connect the flow chamber to the to form the deepest lying section of the membrane chambers.
  • the drawing shows a front view of the pump in the section.
  • a serving as a suction section tubular channel which extends transversely to the longitudinal direction of the pump and which has a connection 2 in the middle of the pump to which a suction hose, not shown, can be connected, which the pumping medium, for. B. groundwater.
  • the ends 3 and 4 of the suction section 1 are, as shown, angled upwards and carry a horizontal flange 5 and 6.
  • the flanges 9 and 10 of the suction nozzle can be flanged by two pump housings 11 or 12.
  • the sealing ring 7 is designed such that it has a smaller inner width than the nominal width of the flange 9, as a result of which its inwardly projecting edge 13 forms the support shoulder of a sealing seat for the valve ball 14.
  • Valve ball 14 and sealing ring 7 act as a check valve arranged in the suction port of the pump housing 11.
  • the arrangement in the pump housing 12 is the same because the pump is symmetrical.
  • the membrane chamber 16 with the clamped rubber membrane 17, which can be moved back and forth via a connecting rod 27, is located above it at an inclination of approximately 45 °.
  • the operating position shown shows an inwardly deflected diaphragm, in which an overpressure is generated in the diaphragm chamber 16, which presses the valve ball 14 onto the sealing ring 7 of the pressure port, pump medium located in the flow chamber from which the pressure port 18 has the same configuration as the suction port is pressed with the second valve ball 19 into the two pump housings 11 and 12 common pressure path 20.
  • a hose that discharges the pump medium can also be connected to the pressure path, for. B. by coupling by means of the schematically shown stretching coupling 21st
  • the articulation of the connecting rod 27 is shown with an annular connecting rod head 22 on a disk 23, which is seated eccentrically on a drive shaft 24.
  • the connecting rod 27 is made to move back and forth, which is transferred to the diaphragm 17.
  • the connecting rod 25 assigned to the second pump housing 12 is also connected to the drive shaft via a similar disk.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Reciprocating Pumps (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Claims (4)

1. Pompe à membrane, de préférence pompe à deux membranes, en particulier pour le drainage d'eau souterraine sur des chantiers, dans laquelle des membranes flexibles inclinées en V l'une par rapport à l'autre sont montées dans des corps de pompe juxtaposés renfermant une chambre de pompe équipée de raccords d'aspiration et de refoulement et sont animées d'un mouvement de va-et-vient sous l'action de poussoirs accouplés à un arbre à manivelles, caractérisée en ce que chaque chambre de pompe est divisée en une chambre d'écoulement relativement courte (15) présentant le clapet d'admission et le clapet de refoulement et une chambre à membrane (16) associée essentiellement séparée que la chambre d'écoulement est disposée à la partie la plus basse du compartiment de corps de pompe (11-12) entourant la chambre à membrane et que la chambre à membrane, ainsi élevée dans le corps de pompe, est raccordée par une ouverture inférieure à la chambre d'écoulement.
2. Pompe à membrane selon la revendication 1, caractérisée en ce que les membranes (17) se trouvent sur des côtés opposés de corps de pompe (11, 12) juxtaposés.
3. Pompe à membrane selon les revendications 1 et 2, caractérisée en ce que les collerettes (5, 9) entre la chambre d'écoulement (15) et une conduite d'aspiration (1) ou une conduite de refoulement (20) sont constituées comme des sièges de clapets pour des billes (14,19) formant clapets.
4. Pompe à membrane selon la revendication 3, caractérisée en ce que comme siège d'étanchéité, on prévoit le bord intérieur saillant (13) d'un anneau d'étanchéité (7) interposée entre les collerettes (5, 9).
EP82101652A 1981-03-06 1982-03-04 Pompe à membrane, notamment pour le contrôle du niveau de l'eau aux chantiers Expired EP0059937B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT82101652T ATE16037T1 (de) 1981-03-06 1982-03-04 Membranpumpe, insbesondere fuer die wasserhaltung auf baustellen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19813108516 DE3108516A1 (de) 1981-03-06 1981-03-06 Membranpumpe, insbesondere fuer die wasserhaltung auf baustellen
DE3108516 1981-03-06

Publications (2)

Publication Number Publication Date
EP0059937A1 EP0059937A1 (fr) 1982-09-15
EP0059937B1 true EP0059937B1 (fr) 1985-10-09

Family

ID=6126508

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82101652A Expired EP0059937B1 (fr) 1981-03-06 1982-03-04 Pompe à membrane, notamment pour le contrôle du niveau de l'eau aux chantiers

Country Status (3)

Country Link
EP (1) EP0059937B1 (fr)
AT (1) ATE16037T1 (fr)
DE (2) DE3108516A1 (fr)

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR53678E (fr) *
FR362598A (fr) * 1905-12-20 1906-06-29 Manfred Vaccari Dispositif de commande pour pompes et autres appareils analogues
GB283021A (en) * 1927-03-28 1928-01-05 Jean Donat Julien Improvements relating to pumps
DE871246C (de) * 1939-12-14 1953-03-19 Dorr Ges M B H Einfach- oder Doppelpumpe
GB727579A (en) * 1950-12-21 1955-04-06 Ets A Guiot Improvements in multiple diaphragm pumps
FR1081203A (fr) * 1953-04-25 1954-12-16 P Berthoud Ets Pompe à liquide actionnée par un tracteur agricole ou analogue
DE1453543A1 (de) * 1963-09-06 1969-05-29 Ernst Kuttig Membranpumpe
FR1423088A (fr) * 1964-11-20 1966-01-03 Nicolas & Co Ets Perfectionnements aux pompes à diaphragmes
FR2064603A6 (fr) * 1969-10-02 1971-07-23 Cozic Albert
DE2306900A1 (de) * 1973-02-13 1974-08-15 Lothar Pracht Gmbh & Co Kg Mas Hochleistungs-doppelmembran-saugund druckpumpe zur verwendung fuer die grundwasserhaltung

Also Published As

Publication number Publication date
ATE16037T1 (de) 1985-10-15
DE3108516A1 (de) 1982-09-23
DE3266744D1 (en) 1985-11-14
EP0059937A1 (fr) 1982-09-15

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