EP2233748A1 - Pompe centrifuge à plusieurs étages - Google Patents

Pompe centrifuge à plusieurs étages Download PDF

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Publication number
EP2233748A1
EP2233748A1 EP09003471A EP09003471A EP2233748A1 EP 2233748 A1 EP2233748 A1 EP 2233748A1 EP 09003471 A EP09003471 A EP 09003471A EP 09003471 A EP09003471 A EP 09003471A EP 2233748 A1 EP2233748 A1 EP 2233748A1
Authority
EP
European Patent Office
Prior art keywords
shaft
spring
centrifugal pump
ring
pump according
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
EP09003471A
Other languages
German (de)
English (en)
Other versions
EP2233748B1 (fr
Inventor
Bruhn Aage
Lars ØSTERGAARD
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.)
Grundfos Management AS
Original Assignee
Grundfos Management AS
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 Grundfos Management AS filed Critical Grundfos Management AS
Priority to EP09003471.1A priority Critical patent/EP2233748B1/fr
Priority to TW098121124A priority patent/TWI495797B/zh
Priority to US12/720,735 priority patent/US8366388B2/en
Priority to CN2010101355987A priority patent/CN101832270B/zh
Publication of EP2233748A1 publication Critical patent/EP2233748A1/fr
Application granted granted Critical
Publication of EP2233748B1 publication Critical patent/EP2233748B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • F04D29/08—Sealings
    • F04D29/10—Shaft sealings
    • F04D29/12—Shaft sealings using sealing-rings
    • F04D29/126—Shaft sealings using sealing-rings especially adapted for liquid pumps

Definitions

  • the multistage centrifugal pump according to the invention has a pump housing and a shaft rotatably mounted therein, which at its motor end at least one cylindrical portion and then pump side has a splined portion, are rotatably mounted on the wheels, between a seated on the shaft stop ring and the free Shaft end are clamped.
  • a mechanical seal is incorporated, which arranged in the pump housing and sealed in contrast stationary sliding ring and arranged on the shaft and the opposite having sealed rotating seal ring.
  • These slip rings slide with their oppositely directed axial surfaces on each other and are spring-loaded. To apply the spring forces two spring holders are provided, between which compression spring means are held.
  • the slide ring-side spring holder is formed cranked so that it circumferentially engages over the rotating seal ring with its bent portion, in this cross-part the preferably helical compression spring is guided.
  • the impeller-side spring holder In order to non-rotatably connect the impeller-side spring holder with the shaft, at least one driver engaging in the splined shaft profile is provided on the impeller-side spring holder.
  • the impeller-side spring holder on a central recess which is profiled according to the spline profile, so that it sits positively over its entire circumference on the shaft.
  • the connecting flange 5 forms in this embodiment, the frontal end of the engine and carries a bearing 10, with which the motor shaft 11 is mounted in this area.
  • the motor shaft 11 is fixedly connected to the pump shaft 12, on which the wheels 8 sit and which is sealed by means of a mechanical seal 13 with respect to the connecting flange 5, which is penetrated by the pump shaft 12.
EP09003471.1A 2009-03-10 2009-03-10 Pompe centrifuge à plusieurs étages Active EP2233748B1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP09003471.1A EP2233748B1 (fr) 2009-03-10 2009-03-10 Pompe centrifuge à plusieurs étages
TW098121124A TWI495797B (zh) 2009-03-10 2009-06-24 多級離心泵
US12/720,735 US8366388B2 (en) 2009-03-10 2010-03-10 Multi-stage centrifugal pump (axial face seal)
CN2010101355987A CN101832270B (zh) 2009-03-10 2010-03-10 多级离心泵

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP09003471.1A EP2233748B1 (fr) 2009-03-10 2009-03-10 Pompe centrifuge à plusieurs étages

Publications (2)

Publication Number Publication Date
EP2233748A1 true EP2233748A1 (fr) 2010-09-29
EP2233748B1 EP2233748B1 (fr) 2017-05-24

Family

ID=40886564

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09003471.1A Active EP2233748B1 (fr) 2009-03-10 2009-03-10 Pompe centrifuge à plusieurs étages

Country Status (4)

Country Link
US (1) US8366388B2 (fr)
EP (1) EP2233748B1 (fr)
CN (1) CN101832270B (fr)
TW (1) TWI495797B (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102019001882A1 (de) * 2019-03-19 2020-09-24 KSB SE & Co. KGaA Mantelgehäusepumpe und Herstellungsverfahren für eine Mantelgehäusepumpe
KR102078042B1 (ko) * 2019-06-04 2020-02-17 (주)동양화공기계 초고속 영구자석 모터와 직결된 원심펌프

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2929328A (en) * 1957-01-04 1960-03-22 United Aircraft Corp Torque responsive seal
EP0261082A2 (fr) * 1986-07-18 1988-03-23 MECCANOTECNICA UMBRA - S.r.l. Garniture mécanique à dimension axiale réduite pour pompe hydraulique
GB2235737A (en) * 1989-08-22 1991-03-13 Kaco Gmbh Co Mechanical seal unit
DE29511211U1 (de) 1995-07-11 1995-09-21 Grundfos As Gleitringdichtung
WO2006008844A1 (fr) 2004-07-16 2006-01-26 Ebara Corporation Pompe à moteur

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2856219A (en) * 1954-07-07 1958-10-14 Victor Mfg & Gasket Co Fluid seal
CN2168972Y (zh) * 1993-02-06 1994-06-15 沈阳辽东机械密封技术服务公司 石油化工多级离心泵机械密封
US5924855A (en) * 1995-06-21 1999-07-20 Sihi Industry Consult Gmbh Screw compressor with cooling
US6568686B2 (en) * 2000-12-05 2003-05-27 Am-Metric Seal, Inc. Mechanical rotary seal
TWI221502B (en) * 2002-04-11 2004-10-01 Shimao Ni Scroll type fluid displacement apparatus with fully compliant floating scrolls
CN2821303Y (zh) * 2005-09-07 2006-09-27 崔忠信 锥套固定式机械密封
US7311307B2 (en) * 2005-09-29 2007-12-25 Freudenberg-Nok General Partnership Seal seat assembly with specialized features

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2929328A (en) * 1957-01-04 1960-03-22 United Aircraft Corp Torque responsive seal
EP0261082A2 (fr) * 1986-07-18 1988-03-23 MECCANOTECNICA UMBRA - S.r.l. Garniture mécanique à dimension axiale réduite pour pompe hydraulique
GB2235737A (en) * 1989-08-22 1991-03-13 Kaco Gmbh Co Mechanical seal unit
DE29511211U1 (de) 1995-07-11 1995-09-21 Grundfos As Gleitringdichtung
WO2006008844A1 (fr) 2004-07-16 2006-01-26 Ebara Corporation Pompe à moteur

Also Published As

Publication number Publication date
CN101832270B (zh) 2013-06-19
US20100232949A1 (en) 2010-09-16
EP2233748B1 (fr) 2017-05-24
CN101832270A (zh) 2010-09-15
TW201033476A (en) 2010-09-16
TWI495797B (zh) 2015-08-11
US8366388B2 (en) 2013-02-05

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