EP0286954A2 - Pompe centrifuge auto-amorçante - Google Patents

Pompe centrifuge auto-amorçante Download PDF

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Publication number
EP0286954A2
EP0286954A2 EP88105434A EP88105434A EP0286954A2 EP 0286954 A2 EP0286954 A2 EP 0286954A2 EP 88105434 A EP88105434 A EP 88105434A EP 88105434 A EP88105434 A EP 88105434A EP 0286954 A2 EP0286954 A2 EP 0286954A2
Authority
EP
European Patent Office
Prior art keywords
rib
guide
self
centrifugal pump
pair
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
EP88105434A
Other languages
German (de)
English (en)
Other versions
EP0286954A3 (en
EP0286954B1 (fr
Inventor
Ernst Korthaus
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 AT88105434T priority Critical patent/ATE83297T1/de
Publication of EP0286954A2 publication Critical patent/EP0286954A2/fr
Publication of EP0286954A3 publication Critical patent/EP0286954A3/de
Application granted granted Critical
Publication of EP0286954B1 publication Critical patent/EP0286954B1/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
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D9/00—Priming; Preventing vapour lock
    • F04D9/004—Priming of not self-priming pumps
    • F04D9/005—Priming of not self-priming pumps by adducting or recycling liquid
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D9/00—Priming; Preventing vapour lock
    • F04D9/02—Self-priming pumps

Definitions

  • the invention relates to a self-priming centrifugal pump with impeller cell flushing, rotationally symmetrical guide ring, with at least one cover plate and a central suction nozzle.
  • the centrifugal pump is particularly suitable for pumping dirty water.
  • it is necessary to suck off the gas cushion contained in the suction line as quickly as possible and to expel it via the pressure line.
  • a self-priming centrifugal pump is known with a guide body in the housing spiral, the guide body reaching into the upward pressure port.
  • the guide body In the central region of its extent in the flow direction, the guide body is brought up to the impeller circumference and, with its part pointing downward, ie the part directed against the flow, is designed as a tongue that embraces the impeller with increasing distance in an arc.
  • the guide body There is only one such guide body according to the invention in the spiral housing.
  • the guide body is a part of the volute casing that is connected by the technique of a sewing machine and is not adaptable to a changed impeller diameter for variable operating points of a pump series. Wear of the guide body due to abrasion caused by the conveyance of dirty water can only be remedied by replacing the volute casing.
  • the object of the invention is to design a self-priming centrifugal pump of the type mentioned in such a way that known disadvantages are avoided.
  • the suction port 2 and the pressure port 3 are inserted above the axis of the impeller 4 in the pump housing 1. It is known to ensure that the pump housing 1 does not run empty when the pump is at a standstill.
  • the impeller 4 is surrounded by the ratio-symmetrical open guide ring 5.
  • the impeller blades 6 are curved backwards in the present example.
  • the cover disk 7 here has two pairs of guide ribs 8, one above and one below the impeller axis.
  • the pair of guide ribs 8, 9 consists of the induction rib 8 and the catch rib 9, which are welded onto the cover plate 7 in the example shown.
  • the induction rib 8 and the catch rib 9 are of different lengths, straight, arranged on the line of a secant of the cover plate 7 and at the same distance a on the secant from the impeller axis. If three pairs of guide ribs 8, 9 are used, they are arranged in the form of an isosceles triangle. The induction rib 8 and the catch rib 9 are brought up close to the passing impeller blades.
  • the effect of the induction rib 8 is based on the fact that, due to its special angular adjustment to the passing impeller blade, the water rotating in the guide ring is partially returned to the impeller. This allows the water-air mixture in the impeller to suck in more air from the suction nozzle and thus lead to the suction line being ventilated.
  • the effect of the rib 9 is based on the fact that a part of the water-air mixture thrown back into the guide ring is separated into water and air, the air escapes upwards and the water is brought back into the impeller by the following rib. The separated air is discharged through the pressure port and liquid is quickly conveyed.
  • the impeller 4 which is open on one side, is sealed on the suction side by the cover disk 7.
  • the cover plate 7 can be equipped with an interchangeable locking disk 10 in the central area.
  • the second wall of the guide ring 5 is formed by the housing wall on the drive side.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
EP88105434A 1987-04-16 1988-04-06 Pompe centrifuge auto-amorçante Expired - Lifetime EP0286954B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88105434T ATE83297T1 (de) 1987-04-16 1988-04-06 Selbstsaugende kreiselpumpe.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3712916 1987-04-16
DE19873712916 DE3712916A1 (de) 1987-04-16 1987-04-16 Selbstsaugende kreiselpumpe

Publications (3)

Publication Number Publication Date
EP0286954A2 true EP0286954A2 (fr) 1988-10-19
EP0286954A3 EP0286954A3 (en) 1989-01-11
EP0286954B1 EP0286954B1 (fr) 1992-12-09

Family

ID=6325756

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88105434A Expired - Lifetime EP0286954B1 (fr) 1987-04-16 1988-04-06 Pompe centrifuge auto-amorçante

Country Status (7)

Country Link
US (1) US4844687A (fr)
EP (1) EP0286954B1 (fr)
JP (1) JPS63277886A (fr)
AT (1) ATE83297T1 (fr)
DE (2) DE3712916A1 (fr)
ES (1) ES2037123T3 (fr)
IN (1) IN171114B (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2138690C1 (ru) * 1998-05-13 1999-09-27 Опытное конструкторское бюро машиностроения Центробежный самовсасывающий насос
CN102913484A (zh) * 2012-10-31 2013-02-06 遵义海立水泵制造有限责任公司 一种泵顶涡壳
CN103133353A (zh) * 2013-03-12 2013-06-05 孙九江 自吸式离心泵

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2533191Y2 (ja) * 1991-03-22 1997-04-23 新明和工業株式会社 ポンプ装置
DE4309479A1 (de) * 1993-03-24 1994-09-29 Wilo Gmbh Radialkreiselpumpe
DE9317443U1 (de) * 1993-11-15 1994-01-13 Duewag Ag, 47829 Krefeld Wasserversorgungsanlage, insbesondere für Gastronomiewagen von Reisezügen
USD454357S1 (en) 2000-08-14 2002-03-12 Wacker Corporation Centrifugal trash pump
US6471476B1 (en) 2000-11-13 2002-10-29 Wacker Corporation Centrifugal trash pump
US7197885B2 (en) * 2004-09-30 2007-04-03 Valeo Climate Control Corp Water separator with ribs
JP4861289B2 (ja) * 2004-10-27 2012-01-25 パナソニック株式会社 空気調和機用ファンユニット
PL1873399T3 (pl) * 2006-06-29 2013-06-28 Grundfos Management As Agregat z pompą odśrodkową
JP2021181764A (ja) * 2020-05-19 2021-11-25 株式会社荏原製作所 ポンプ

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE673662C (de) * 1937-02-27 1939-03-25 Fedor Werner Selbstansaugende Fliehkraftpumpe
US2247817A (en) * 1938-04-30 1941-07-01 Gen Electric Centrifugal pump
US2461925A (en) * 1946-09-05 1949-02-15 Gorman Rupp Co Self-priming centrifugal pump
DE959969C (de) * 1951-05-16 1957-03-14 Georg Volland Dr Ing Selbstansaugende Kreiselpumpe
US2792787A (en) * 1953-03-03 1957-05-21 Mcculloch Motors Corp Pumping device
US2945448A (en) * 1957-02-15 1960-07-19 Bell & Gossett Co Universal centrifugal pump
GB856886A (en) * 1957-07-30 1960-12-21 Bell & Gossett Co Centrifugal pump
GB974971A (en) * 1959-12-03 1964-11-11 J H Carruthers & Company Ltd A rotary gas pump
US3103177A (en) * 1961-07-20 1963-09-10 Bell & Gossett Co Self-priming centrifugal pump
US3506374A (en) * 1968-06-04 1970-04-14 Decatur Pump Co Self-priming pump
US3873231A (en) * 1972-08-11 1975-03-25 Allis Chalmers Centrifugal pump diffuser
DE7534163U (de) * 1975-10-28 1976-03-11 Grabbe, Friedbert, Ing.(Grad.), 4300 Essen Kreiselpumpe zur foerderung von mit gasen vermischten fluessigkeiten
FR2405083A1 (fr) * 1977-10-04 1979-05-04 Ideal Standard Separateur liquide-air pour applications diverses et notamment pour pompe centrifuge
YU41671B (en) * 1979-10-22 1987-12-31 Tozd Tovarna Motorjev Tomos Self suction centrifugal pump
SU987189A1 (ru) * 1981-05-19 1983-01-07 Предприятие П/Я В-8319 Лопастной насос
DE3539883A1 (de) * 1985-09-18 1987-03-26 Hermetic Pumpen Gmbh Selbstansaugende kreiselpumpe
DE8705619U1 (de) * 1987-04-16 1987-07-16 Korthaus, Ernst, Dipl.-Ing., 5982 Neuenrade Selbstsaugende Kreiselpumpe

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2138690C1 (ru) * 1998-05-13 1999-09-27 Опытное конструкторское бюро машиностроения Центробежный самовсасывающий насос
CN102913484A (zh) * 2012-10-31 2013-02-06 遵义海立水泵制造有限责任公司 一种泵顶涡壳
CN102913484B (zh) * 2012-10-31 2015-11-18 遵义海立水泵制造有限责任公司 一种泵顶涡壳
CN103133353A (zh) * 2013-03-12 2013-06-05 孙九江 自吸式离心泵
CN103133353B (zh) * 2013-03-12 2015-05-06 孙九江 自吸式离心泵

Also Published As

Publication number Publication date
EP0286954A3 (en) 1989-01-11
JPS63277886A (ja) 1988-11-15
ATE83297T1 (de) 1992-12-15
DE3712916A1 (de) 1988-11-03
EP0286954B1 (fr) 1992-12-09
ES2037123T3 (es) 1993-06-16
DE3876476D1 (de) 1993-01-21
US4844687A (en) 1989-07-04
IN171114B (fr) 1992-07-25
DE3712916C2 (fr) 1989-11-30

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