EP0059937A1 - 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
EP0059937A1
EP0059937A1 EP82101652A EP82101652A EP0059937A1 EP 0059937 A1 EP0059937 A1 EP 0059937A1 EP 82101652 A EP82101652 A EP 82101652A EP 82101652 A EP82101652 A EP 82101652A EP 0059937 A1 EP0059937 A1 EP 0059937A1
Authority
EP
European Patent Office
Prior art keywords
diaphragm
diaphragm pump
chamber
housing
pump
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
EP82101652A
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German (de)
English (en)
Other versions
EP0059937B1 (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
Original Assignee
Individual
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 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, in particular for water maintenance on construction sites, in which a flexible membrane is clamped in a housing provided with suction and pressure ports and can be moved back and forth by a tappet coupled to a driven crank.
  • the known pumps are relatively heavy constructions.
  • the long crankshaft requires multiple bearings in a stable frame.
  • heavy pipe elbows and flanges are used for connections that carry the pumping medium.
  • a medium-sized, two-stage pump with a performance sufficient for most applications on construction sites thus achieves a weight of approx. 800 kg, so that such a pump can be arranged on its own chassis and then only from a tractor, e.g. a truck that can be moved.
  • the invention has for its object to design a diaphragm pump such that it with the same performance as Previously common diaphragm pumps, is as compact as possible, that is, has smaller dimensions and lower weight.
  • This object has been achieved according to the invention in that, as e.g. two-stage pump, has two housings arranged side by side, which are inclined with their membranes in a V-shape.
  • the desired compact design is also promoted by arranging the housings so that the membranes are at an angle of approximately 45 ° to one another.
  • the tappets for both diaphragms can act on a crank of a crankshaft that is reduced to a short shaft stub and only needs to be stored once.
  • a major advantage of the V-shaped and lateral arrangement of the two housings with membranes according to the invention is the easy accessibility achieved thereby, so that the membranes to be regarded as wearing parts can be replaced without any special assembly effort.
  • the pump designed according to the invention can therefore advantageously also be transported in a car.
  • 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.
  • the arrangement of the housing on both sides according to the invention also has the advantage that lines for the suction and discharge of the pump medium, e.g. Groundwater, structurally simple and relatively short.
  • the pump medium e.g. Groundwater
  • each housing has a flow chamber provided with pressure and suction ports and a membrane chamber connected to it, the flow chamber being arranged at a lower end of the membrane chamber.
  • the flow chamber has the advantage that the flow paths through the pump are relatively short.
  • the intake port with an associated check valve opens into the flow chamber and the pressure port with the associated check valve is also arranged on the compact, short flow chamber.
  • the membrane chamber Since the flow chamber is arranged at the lowest point of the section of the housing having the membrane, this space of the housing, the membrane chamber, in which the pressure and negative pressure causing the delivery is generated by the membrane, is not flowed through by the pumped medium.
  • the pump medium only covers the relatively short and therefore flow-efficient path between the nozzles in the flow chamber. The operational safety of the pump is consequently increased, because in the high-lying, non-flowed-through housing space, the membrane chamber, solids carried in the pump medium cannot settle.
  • the flow chamber can be a separate component. However, it is also possible to place the flow chamber at the deepest to form the most lying section of the membrane chamber.
  • 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 out teats 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 are used with dimensions less than the nominal diameter of the flanges or sockets, so that the form bearing edges for the 'acting as a check valve ball valves inwardly projecting portions of the sealing ring.
  • each tappet of each diaphragm is a connecting rod which is eccentrically mounted on a drive shaft.
  • a particularly simple and therefore preferred embodiment of the bearing is characterized in that disks are attached eccentrically to a stub shaft of the drive shaft, and in that each connecting rod is mounted on the circumference of the associated disk with an annular connecting rod head.
  • the drawing shows a front view of the pump in partial section.
  • a tubular channel which serves as a suction section and 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 further) can be connected, which feeds the pumping medium, for example groundwater.
  • the ends 3 and 4 of the suction section 1 are, as shown, angled upwards and carry a horizontal flange 5 and 6 respectively.
  • the flanges 9 and 10 are attached to the flanges 5 and 6 with the interposition of a rubber sealing ring 7 and 8 respectively the suction nozzle of two pump housings 11 or 12 can be flanged.
  • the sealing ring 7 is designed such that it has a smaller 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 flow chamber 15 Immediately adjacent to the flange 9 or 10 of the suction port of the housing 11 or 12 is a space of the pump housing, referred to as the flow chamber 15. Above it is the diaphragm chamber 16, which is inclined by approximately 45 ° and has the clamped rubber membrane 17, which can be moved back and forth via a connecting rod 27.
  • 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 design as the suction port with the second valve ball 19 in the pressure pump 20 shared between the two pump housings 11 and 12.
  • a hose discharging the pump medium can also be connected to the pressure path, for example by coupling by means of the schematically illustrated stretching coupling 21.
  • 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)
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 true EP0059937A1 (fr) 1982-09-15
EP0059937B1 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)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR53678E (fr) *
DE871246C (de) * 1939-12-14 1953-03-19 Dorr Ges M B H Einfach- oder Doppelpumpe
FR1081203A (fr) * 1953-04-25 1954-12-16 P Berthoud Ets Pompe à liquide actionnée par un tracteur agricole ou analogue
GB727579A (en) * 1950-12-21 1955-04-06 Ets A Guiot Improvements in multiple diaphragm pumps
FR1423088A (fr) * 1964-11-20 1966-01-03 Nicolas & Co Ets Perfectionnements aux pompes à diaphragmes
DE1453543A1 (de) * 1963-09-06 1969-05-29 Ernst Kuttig Membranpumpe
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

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR53678E (fr) *
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
EP0059937B1 (fr) 1985-10-09

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