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EP3555480A1 - Pompe centrifuge à roue à aubes radiale - Google Patents

Pompe centrifuge à roue à aubes radiale

Info

Publication number
EP3555480A1
EP3555480A1 EP17811911.1A EP17811911A EP3555480A1 EP 3555480 A1 EP3555480 A1 EP 3555480A1 EP 17811911 A EP17811911 A EP 17811911A EP 3555480 A1 EP3555480 A1 EP 3555480A1
Authority
EP
European Patent Office
Prior art keywords
centrifugal pump
channel
pump according
impeller
radial
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Withdrawn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
EP17811911.1A
Other languages
German (de)
English (en)
Inventor
Björn WILL
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.)
KSB SE and Co KGaA
Original Assignee
KSB SE and Co KGaA
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 SE and Co KGaA filed Critical KSB SE and Co KGaA
Publication of EP3555480A1 publication Critical patent/EP3555480A1/fr
Withdrawn legal-status Critical Current

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
    • F04D29/04—Shafts or bearings, or assemblies thereof
    • F04D29/041—Axial thrust balancing
    • F04D29/0416—Axial thrust balancing balancing pistons
    • 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
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/426—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for liquid pumps
    • 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
    • F04D29/16—Sealings between pressure and suction sides
    • F04D29/165—Sealings between pressure and suction sides especially adapted for liquid pumps
    • F04D29/167—Sealings between pressure and suction sides especially adapted for liquid pumps of a centrifugal flow wheel

Definitions

  • WO 00/66894 A1 describes a method and a device for reducing or eliminating the axial force of a centrifugal pump.
  • a flow divider is achieved by arranging a set of brake vanes along the periphery of a cavity. This reduces the rotational speed of the fluid.
  • a stationary disc is provided along the inner wall of the housing to direct a radial flow of the fluid towards the center of the pump.
  • DE 31 04 4747 A1 describes a centrifugal pump with a control collar arranged on the impeller on the pressure side or suction side.
  • disks are arranged on the pressure-side wheel side or on the suction-side wheel side of the wheel. The discs are rotatably and axially displaceably mounted on the shaft of the centrifugal pump or on the rotor neck.
  • the housing of the centrifugal pump has a channel for guiding a flow from a wheel side space of the pump to a radial gap of the pump. This is preferably a swirling leakage flow from the impeller.
  • FIG. 1 shows a centrifugal pump with an impeller 1.
  • the impeller 1 is designed as a closed radial impeller and has a support plate 2 and cover plate 3. On the support plate 2 blades are arranged. Between the support plate 2 and the cover plate 3 passages are formed for conveying the medium.
  • the impeller 1 is driven by a shaft 4.
  • the impeller 1 is surrounded by a housing 5, which may be formed in several pieces.
  • the housing 5 has a suction mouth 6.
  • the centrifugal pump has a split ring seal arrangement 7.
  • the split-ring sealing arrangement 7 limits the gap volume flow which flows back from the pressure region of the centrifugal pump into the suction region.
  • the impeller 1 is designed as a radial impeller.
  • the housing part 9 has an L-shaped cross-sectional profile in order to form both a section in the axial direction and a section in the radial direction or parallel to the cover disk 3.
  • the housing part 9 is cup-shaped or bell-shaped.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

L'invention concerne une pompe centrifuge comportant une roue à aubes radiale (1) qui est entourée d'un carter (5). Le carter (5) présente un canal (11). Un flux provenant d'un espace latéral de roue (8) traverse le canal (11) en direction d'une fente radiale (12).
EP17811911.1A 2016-12-14 2017-12-05 Pompe centrifuge à roue à aubes radiale Withdrawn EP3555480A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102016225018.3A DE102016225018A1 (de) 2016-12-14 2016-12-14 Kreiselpumpe mit radialem Laufrad
PCT/EP2017/081448 WO2018108617A1 (fr) 2016-12-14 2017-12-05 Pompe centrifuge à roue à aubes radiale

Publications (1)

Publication Number Publication Date
EP3555480A1 true EP3555480A1 (fr) 2019-10-23

Family

ID=60654952

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17811911.1A Withdrawn EP3555480A1 (fr) 2016-12-14 2017-12-05 Pompe centrifuge à roue à aubes radiale

Country Status (6)

Country Link
US (1) US11221019B2 (fr)
EP (1) EP3555480A1 (fr)
JP (1) JP2020502414A (fr)
CN (1) CN110036207B (fr)
DE (1) DE102016225018A1 (fr)
WO (1) WO2018108617A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102020003855A1 (de) * 2020-06-26 2021-12-30 KSB SE & Co. KGaA Kreiselpumpe zur Förderung feststoffhaltiger Medien
DE102021105610A1 (de) 2021-03-09 2022-10-20 KSB SE & Co. KGaA Herstellung eines Laufrads in einem Hybridverfahren
EP4405588A1 (fr) * 2021-09-21 2024-07-31 Aktiebolaget SKF Agencement de palier de pompe et procédé de fonctionnement
DE102021005121A1 (de) 2021-10-13 2023-04-13 KSB SE & Co. KGaA Laufrad mit Verzahnung in Deckscheibe

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1102604A (en) * 1911-11-09 1914-07-07 Byron Jackson Iron Works Bearing for centrifugal pumps.
US3510230A (en) * 1968-04-03 1970-05-05 Union Carbide Corp Internal seals for pumps with enclosed impellers
DE1940555C3 (de) 1969-08-08 1975-11-27 Spezialnoje Konstruktorskoje Bjuro Po Projektirowaniju Germetitscheskich Elektronasosow I Elektrodwigateljej, Kisinew (Sowjetunion) Stopfbuchslose Zentrifugalpumpe
DE2349815A1 (de) * 1972-10-20 1974-05-02 Ganz Mavag Mozdony Vagon Stroemungsmaschinen
SE381497B (sv) 1975-02-10 1975-12-08 Stenberg Flygt Ab Anordning for balansering av radialkrafter i centrifugalpumpar
DE3104747C2 (de) 1981-02-11 1986-07-24 Wolfgang Dipl.-Ing. 6710 Frankenthal Hanagarth Strömungsmaschine
DE3330364A1 (de) 1983-08-23 1985-03-21 Klein, Schanzlin & Becker Ag, 6710 Frankenthal Stroemungsmaschine
SU1275120A1 (ru) 1985-03-26 1986-12-07 Предприятие П/Я Ж-1287 Центробежный насос
JPS62148798U (fr) 1986-03-14 1987-09-19
JPH01237394A (ja) * 1988-03-18 1989-09-21 Hitachi Ltd 遠心圧縮機のバランスピストン構造
FI105641B (fi) 1998-08-10 2000-09-15 Nokia Mobile Phones Ltd Resurssien varaus pakettimuotoisessa tiedonsiirrossa
US6129507A (en) 1999-04-30 2000-10-10 Technology Commercialization Corporation Method and device for reducing axial thrust in rotary machines and a centrifugal pump using same
US7731476B2 (en) * 2007-01-30 2010-06-08 Technology Commercialization Corp. Method and device for reducing axial thrust and radial oscillations and rotary machines using same
US7775763B1 (en) * 2007-06-21 2010-08-17 Florida Turbine Technologies, Inc. Centrifugal pump with rotor thrust balancing seal
CN203717419U (zh) * 2014-01-28 2014-07-16 上海日机装屏蔽泵有限公司 自动推力平衡式屏蔽泵

Also Published As

Publication number Publication date
US11221019B2 (en) 2022-01-11
JP2020502414A (ja) 2020-01-23
CN110036207A (zh) 2019-07-19
CN110036207B (zh) 2022-02-11
DE102016225018A1 (de) 2018-06-14
US20190390686A1 (en) 2019-12-26
WO2018108617A1 (fr) 2018-06-21

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