EP0274739A2 - Appareil de pompage autoamorçant pour liquides - Google Patents

Appareil de pompage autoamorçant pour liquides Download PDF

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Publication number
EP0274739A2
EP0274739A2 EP87119204A EP87119204A EP0274739A2 EP 0274739 A2 EP0274739 A2 EP 0274739A2 EP 87119204 A EP87119204 A EP 87119204A EP 87119204 A EP87119204 A EP 87119204A EP 0274739 A2 EP0274739 A2 EP 0274739A2
Authority
EP
European Patent Office
Prior art keywords
pump
suction
suction device
self
flange
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.)
Withdrawn
Application number
EP87119204A
Other languages
German (de)
English (en)
Other versions
EP0274739A3 (fr
Inventor
Paul Zehnder
Hans-Ulrich Niklaus
Franz Patri
Engelbert Dr Schmiedl
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.)
K Ruetschi AG Pumpenbau Brugg
Original Assignee
K Ruetschi AG Pumpenbau Brugg
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 K Ruetschi AG Pumpenbau Brugg filed Critical K Ruetschi AG Pumpenbau Brugg
Publication of EP0274739A2 publication Critical patent/EP0274739A2/fr
Publication of EP0274739A3 publication Critical patent/EP0274739A3/fr
Withdrawn legal-status Critical Current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
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/60—Mounting; Assembling; Disassembling
    • F04D29/605—Mounting; Assembling; Disassembling specially adapted for liquid pumps
    • F04D29/606—Mounting in cavities

Definitions

  • the invention relates to a self-priming pump device according to the preamble of claim 1.
  • Pumping devices are used in chemical engineering plants as well as in nuclear technology plants which are only partially or not directly accessible for safety reasons or for reasons of personal protection and which are also accessible for reasons of environmental protection but also to protect the liquids to be conveyed from the outside Influences are extremely high requirements regarding reliability and avoidance of leakage.
  • the pump, the associated suction device with suction line, pressure line and ejectors for initiating the conveyance and finally the suction container are each arranged side by side on a base plate, which is a matter of special safety measures, e.g. to prevent leakage on fittings, flanges, pipes and the like.
  • the invention has for its object a pump device of the type mentioned in the preamble of Claim 1 to create, which can be disassembled and reassembled in the simplest way, particularly for repair or maintenance purposes, quickly and safely, also via remote-controlled manipulators, and in which, in addition, the risk that neighboring parts of the escaping conveying liquid due to defective fittings, flanges and the like Plant contaminated or contaminated by such is largely avoided.
  • the second part of the object on which the invention is based is achieved in that the pump and suction device, together with all the connections, etc., are accommodated in the suction container, through the upper end of which only the line leading to the pump and the line leading away from the pump enter or exit . Any leakage of the conveyed liquid at the connections of the intake connection, pressure connection, lines of the intake device etc. remains in the closed intake container.
  • a first barrier for the retention of escaping liquid is thus integrated in the pump device.
  • the pump itself is enclosed on all sides by the suction tank and therefore does not require any special containment. This is particularly important for the barrier security concept in nuclear technology.
  • the solution to the first part of the task defined above results from the fact that after solving the individual Components connecting elements, preferably these are screw connections or tension locks, which can be done by remote-controlled manipulators, e.g. impact wrenches or the like, without difficulty, the pump device can be disassembled, which in turn is possible using remote-controlled manipulators, e.g. lifting devices, first the pump and then the suction device is lifted up out of the suction tank.
  • the reassembly is just as easy in the reverse order. This has the important advantage that the most vulnerable part, namely the pump, is removed first and installed last, so that in the event of a defect or for the maintenance of the pump, only this component is removed and then reinstalled. When the pump is lifted out and / or when the connections are disconnected, any liquid escaping remains in the suction tank.
  • a particularly expedient embodiment of the suction device is characterized in claim 2 and then enables the equally expedient embodiment of the pump according to claim 3.
  • organs for example brackets, hooks or the like, are provided at the upper end of the pump and the suction device for engaging the gripper of, for example, a remote-controlled hoist.
  • the suction tank generally open at 1, consists of a base plate 2 and a cylindrical jacket 3 welded to it. At the upper, open end of the suction tank 1, the jacket 3 is provided with an annular inner shoulder 4 and several are distributed in its end face 5 on its circumference Threaded bolt 6 screwed up protruding.
  • the suction device designed as a component is generally designated 7. It comprises an end flange with a central opening, shown here as a ring flange 8, the outside diameter of which corresponds to that of the cylindrical jacket 3 of the suction container and its peri Pherie gradations, which allows its fit into the inner shoulder 4 of the suction container 1 and thus the inclusion of sealing rings, not shown.
  • the ring flange 8 also has bores 9 which are matched in terms of number, diameter and position to the threaded bolts 6 of the suction container 1.
  • the flange ring serves as a carrier and holder for lines penetrating it, in particular a feed line 10 to the pump, a pressure line 11 from the pump, and for a cylindrical housing 12 for receiving the pump, as will be described in more detail below.
  • the suction device known per se has ejectors, as well as flow openings 15 and 16 in the bottom or in the side wall of the housing 12 for the entry of the sucked liquid into the pump or for the exit of the pumped liquid from the pump.
  • 8 hooks 18 are attached to the ring flange, to which the entire component formed by the suction device 7 just described can be attached, for example to the gripper 19 of a hoist, in order to be able to be inserted into the suction container 1, as shown in FIG. 2, until the Ring flange 8 rests on the end face 5 of the suction container 1, the threaded bolts 6 penetrating the bores 9 in the ring flange 8.
  • nuts 20 which if necessary are screwed onto the threaded bolts 6 by remote-controlled manipulators,
  • the suction device 7 can now be fixed coaxially in the suction container 1, as shown particularly clearly in FIG. 2. It can also be seen from this FIG.
  • the interior of the housing 12 forms a cavity 21 which can accommodate the pump of the pump device according to the invention, which is generally designated 22.
  • This is shown here as a canned motor pump, with a motor part 23 and a pump part 24, which are enclosed by a housing 25.
  • a peripheral flange 26 is formed on the housing 25, the circumference of which has bores 27 which are matched in terms of number, diameter and position to the threaded bolts 17 of the ring flange 8 of the suction device.
  • the motor-side closure of the housing 25 is formed by a detachably fastened cover 28, to which hooks 29 are fastened, to which the pump 22 can be attached, for example, to the gripper 19 of the hoist already used for manipulating the suction device, in order to be able to mount the pump device in the Cavity 21 of the already installed suction device 7 is lowered or lifted out of this operating position when dismantled.
  • the peripheral flange 26 of the housing 25 rests on the inner edge of the opening of the ring flange 8 of the suction device, the threaded bolts 17 of the latter penetrating the bores 27.
  • the pump 22 used can be screwed onto the projecting ends of these threaded bolts 17 by nuts 30 be fixed, with which the suction container 1 is completely closed at the top.
  • the pump 22 When the pump 22 is inserted, its suction port 31 slides into the flow opening 15 of the suction device in a self-centering and self-sealing manner and the pressure outlets 32 of the pump 22 are located opposite the openings 16 in the casing of the housing 12.
  • the pump part 24 could of course also be driven by a suitably sealed dry motor.
  • the connecting elements shown here as bolts 6 and 17 and nuts 20 and 30 could be replaced by tension locks that are just as easily operated by manipulators.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
EP87119204A 1987-01-15 1987-12-24 Appareil de pompage autoamorçant pour liquides Withdrawn EP0274739A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH132/87 1987-01-15
CH132/87A CH671611A5 (fr) 1987-01-15 1987-01-15

Publications (2)

Publication Number Publication Date
EP0274739A2 true EP0274739A2 (fr) 1988-07-20
EP0274739A3 EP0274739A3 (fr) 1990-02-28

Family

ID=4179981

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87119204A Withdrawn EP0274739A3 (fr) 1987-01-15 1987-12-24 Appareil de pompage autoamorçant pour liquides

Country Status (3)

Country Link
US (1) US4875836A (fr)
EP (1) EP0274739A3 (fr)
CH (1) CH671611A5 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29511865U1 (de) * 1995-07-22 1995-09-14 Wilo Gmbh, 44263 Dortmund Bodenstützplatte für eine Tauchmotorpumpe
EP0690230A1 (fr) * 1994-06-30 1996-01-03 Applied Power Inc. Unité de pompage
US5542823A (en) * 1995-06-14 1996-08-06 Applied Power Inc. Reservoir body for a radial plunger pump

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5380162A (en) * 1993-06-11 1995-01-10 The United States Of America As Represented By The United States Department Of Energy Split driveshaft pump for hazardous fluids
US6193472B1 (en) 1999-03-12 2001-02-27 Dialysis Systems, Inc. Fluid vacuum system
WO2004001226A2 (fr) * 2002-06-21 2003-12-31 Nikkiso Cryo, Inc. Dispositif et procede de stabilisation de pompe
US9435344B1 (en) 2012-09-12 2016-09-06 Sidney T. Highnote Liquid sealed pump
DE102015219091A1 (de) * 2015-10-02 2017-04-06 Robert Bosch Gmbh Elektrohydraulisches Kompaktaggregat

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2381834A (en) * 1942-04-20 1945-08-07 Self Priming Pump & Eng Co Ltd Centrifugal pump for liquid
US2934245A (en) * 1956-11-08 1960-04-26 George B Emeny Drainage, sewage or process pump of the vertical wet pit type
GB883624A (en) * 1958-10-06 1961-12-06 Miles Lowell Edwards Tank and replaceable motor driven pump assembly
FR1334508A (fr) * 1962-06-29 1963-08-09 Wauquier Soc Nouv Ets Procédé de construction de pompes centrifuges à axe vertical et pompes fabriquées par ce procédé
FR1356951A (fr) * 1962-12-19 1964-04-03 Materiel Telephonique Pompe verticale
FR2166630A5 (fr) * 1971-12-31 1973-08-17 Crane Co
DE2433054B1 (de) * 1974-07-03 1975-11-06 Gebrueder Sulzer Ag, Winterthur (Schweiz) Mehrstufige, vertikal angeordnete Zentrifugalpumpe

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2832292A (en) * 1955-03-23 1958-04-29 Edwards Miles Lowell Pump assemblies
US2890009A (en) * 1955-07-13 1959-06-09 Combustion Eng Vessel support
US3737255A (en) * 1972-01-17 1973-06-05 G Emeny Vertical sump pump

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2381834A (en) * 1942-04-20 1945-08-07 Self Priming Pump & Eng Co Ltd Centrifugal pump for liquid
US2934245A (en) * 1956-11-08 1960-04-26 George B Emeny Drainage, sewage or process pump of the vertical wet pit type
GB883624A (en) * 1958-10-06 1961-12-06 Miles Lowell Edwards Tank and replaceable motor driven pump assembly
FR1334508A (fr) * 1962-06-29 1963-08-09 Wauquier Soc Nouv Ets Procédé de construction de pompes centrifuges à axe vertical et pompes fabriquées par ce procédé
FR1356951A (fr) * 1962-12-19 1964-04-03 Materiel Telephonique Pompe verticale
FR2166630A5 (fr) * 1971-12-31 1973-08-17 Crane Co
DE2433054B1 (de) * 1974-07-03 1975-11-06 Gebrueder Sulzer Ag, Winterthur (Schweiz) Mehrstufige, vertikal angeordnete Zentrifugalpumpe

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0690230A1 (fr) * 1994-06-30 1996-01-03 Applied Power Inc. Unité de pompage
NL9401097A (nl) * 1994-06-30 1996-02-01 Applied Power Inc Pompsamenstel.
US5542823A (en) * 1995-06-14 1996-08-06 Applied Power Inc. Reservoir body for a radial plunger pump
DE29511865U1 (de) * 1995-07-22 1995-09-14 Wilo Gmbh, 44263 Dortmund Bodenstützplatte für eine Tauchmotorpumpe

Also Published As

Publication number Publication date
CH671611A5 (fr) 1989-09-15
EP0274739A3 (fr) 1990-02-28
US4875836A (en) 1989-10-24

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