ATE112019T1 - AXIAL THRUST COMPENSATION FOR CENTRIFUGAL PUMPS. - Google Patents

AXIAL THRUST COMPENSATION FOR CENTRIFUGAL PUMPS.

Info

Publication number
ATE112019T1
ATE112019T1 AT91913014T AT91913014T ATE112019T1 AT E112019 T1 ATE112019 T1 AT E112019T1 AT 91913014 T AT91913014 T AT 91913014T AT 91913014 T AT91913014 T AT 91913014T AT E112019 T1 ATE112019 T1 AT E112019T1
Authority
AT
Austria
Prior art keywords
axial thrust
compensation
pressure
impeller
centrifugal pumps
Prior art date
Application number
AT91913014T
Other languages
German (de)
Inventor
Anton Heumann
Horst Schreyer
Original Assignee
Ksb Ag
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 Ksb Ag filed Critical Ksb Ag
Application granted granted Critical
Publication of ATE112019T1 publication Critical patent/ATE112019T1/en

Links

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
    • F04D29/18—Rotors
    • F04D29/22—Rotors specially for centrifugal pumps
    • F04D29/2261—Rotors specially for centrifugal pumps with special measures
    • F04D29/2266—Rotors specially for centrifugal pumps with special measures for sealing or thrust balance

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Non-Positive-Displacement Pumps (AREA)
  • Nitrogen Condensed Heterocyclic Rings (AREA)
  • Control Of Transmission Device (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

The invention concerns a device for fully compensating the axial thrust in centrifugal pumps with a first device which brings about a hydraulic compensation of the axial thrust with the aid of a pressure difference generated by the impeller of the centrifugal pump and a second device which takes up the remaining axial thrust when the pressure head is inadequate for the operation of the first device. In order also to overcome the overload region which can be a problem in axial thrust compensation without using an additional back-up bearing, the invention provides for a second compensating device, also hydraulic, which brings about an increase in pressure in the pressure side of the lateral impeller space when the pressure head falls below a predetermined value, by which this device assumes the compensation of the axial thrust at a time when axial thrust compensation dependent on the pressure differences between the impeller intake and discharge can no longer act satisfactory.
AT91913014T 1990-08-25 1991-07-19 AXIAL THRUST COMPENSATION FOR CENTRIFUGAL PUMPS. ATE112019T1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4026905A DE4026905A1 (en) 1990-08-25 1990-08-25 AXIAL SHIFT COMPENSATION FOR CENTRIFUGAL PUMPS

Publications (1)

Publication Number Publication Date
ATE112019T1 true ATE112019T1 (en) 1994-10-15

Family

ID=6412905

Family Applications (1)

Application Number Title Priority Date Filing Date
AT91913014T ATE112019T1 (en) 1990-08-25 1991-07-19 AXIAL THRUST COMPENSATION FOR CENTRIFUGAL PUMPS.

Country Status (4)

Country Link
EP (1) EP0544693B1 (en)
AT (1) ATE112019T1 (en)
DE (2) DE4026905A1 (en)
WO (1) WO1992003662A1 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4421888A1 (en) * 1994-06-23 1996-01-04 Klein Schanzlin & Becker Ag Device for axial thrust compensation in centrifugal pumps
ES2130945B1 (en) * 1996-07-03 2000-02-16 Bombas Electricas Sa VORTICE TYPE CENTRIFUGAL PUMP.
RU2118715C1 (en) * 1996-09-30 1998-09-10 Конструкторское бюро химавтоматики Pump rotor axial load relief device
SE525029C2 (en) * 2001-07-13 2004-11-16 Abs Pump Prod Ab Device at centrifugal pump
US6824350B2 (en) * 2003-02-25 2004-11-30 Careseal, S.L. Hydrodynamic sealing system for centrifugal systems
CN103016395A (en) * 2012-12-11 2013-04-03 江苏大学 Hydraulic design method for unequal lifts of centrifugal pump impeller
CN103104547A (en) * 2013-03-07 2013-05-15 江苏大学 Hydraulic unequal pump lift design method for gas-liquid two-phase nuclear main pump impeller
DE102016214700A1 (en) * 2016-08-08 2018-02-08 Efficient Energy Gmbh Electric disc rotor with a pressure reducer for the motor gap
DE102017211940A1 (en) * 2017-07-12 2019-01-17 Bayerische Motoren Werke Aktiengesellschaft Fuel cell system for a motor vehicle and turbomachine for a fuel cell system

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE497595C (en) * 1930-05-09 Aeg Single suction centrifugal pump
US1323412A (en) * 1919-12-02 schorr
US1488931A (en) * 1921-10-26 1924-04-01 Marechal Paul Joseph Charles Turbo engine
US1999163A (en) * 1929-06-04 1935-04-23 Allen Sherman Hoff Co Centrifugal pump
FR876247A (en) * 1941-06-18 1942-10-30 Rateau Soc automatic axial balancing for turbomachines
JPS4938641B1 (en) * 1970-08-06 1974-10-19
DE2733631A1 (en) * 1977-07-26 1979-02-08 Hermetic Pumpen Gmbh Multistage centrifugal pump - has connections between blades and volute spaces to provide axially centering forces
US4867633A (en) * 1988-02-18 1989-09-19 Sundstrand Corporation Centrifugal pump with hydraulic thrust balance and tandem axial seals

Also Published As

Publication number Publication date
DE59103062D1 (en) 1994-10-27
DE4026905A1 (en) 1992-02-27
WO1992003662A1 (en) 1992-03-05
EP0544693B1 (en) 1994-09-21
EP0544693A1 (en) 1993-06-09

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Legal Events

Date Code Title Description
REN Ceased due to non-payment of the annual fee