EP0721546A1 - Turbomachine a usure par abrasion reduite - Google Patents

Turbomachine a usure par abrasion reduite

Info

Publication number
EP0721546A1
EP0721546A1 EP94927620A EP94927620A EP0721546A1 EP 0721546 A1 EP0721546 A1 EP 0721546A1 EP 94927620 A EP94927620 A EP 94927620A EP 94927620 A EP94927620 A EP 94927620A EP 0721546 A1 EP0721546 A1 EP 0721546A1
Authority
EP
European Patent Office
Prior art keywords
ring
turbomachine according
wall surface
grooves
blades
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
EP94927620A
Other languages
German (de)
English (en)
Other versions
EP0721546B1 (fr
Inventor
Sönke BRODERSEN
Peter Hergt
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 AG
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
Priority claimed from DE4431947A external-priority patent/DE4431947A1/de
Application filed by KSB AG filed Critical KSB AG
Publication of EP0721546A1 publication Critical patent/EP0721546A1/fr
Application granted granted Critical
Publication of EP0721546B1 publication Critical patent/EP0721546B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • F04D29/08—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
    • 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
    • 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
    • F04D29/44—Fluid-guiding means, e.g. diffusers
    • F04D29/445—Fluid-guiding means, e.g. diffusers 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
    • F04D7/00—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts
    • F04D7/02—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts of centrifugal type
    • F04D7/04—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts of centrifugal type the fluids being viscous or non-homogenous

Landscapes

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

Abstract

L'invention concerne des mesures visant à réduire l'usure de turbomachines provoquée par des milieux chargés de particules. A cet effet, la surface des parois (6, 7) qui délimitent l'espace (13, 12) côté roue est conçue de sorte que l'écoulement à proximité de la surface (6, 7) des parois fixes puisse être modulé afin de réduire l'usure.
EP94927620A 1993-09-25 1994-09-16 Turbomachine a usure par abrasion reduite Expired - Lifetime EP0721546B1 (fr)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
DE4332703 1993-09-25
DE4332703 1993-09-25
DE4431947A DE4431947A1 (de) 1993-09-25 1994-09-08 Strömungsmaschine mit verringertem abrasiven Verschleiß
DE4431947 1994-09-08
PCT/EP1994/003108 WO1995008714A1 (fr) 1993-09-25 1994-09-16 Turbomachine a usure par abrasion reduite

Publications (2)

Publication Number Publication Date
EP0721546A1 true EP0721546A1 (fr) 1996-07-17
EP0721546B1 EP0721546B1 (fr) 1998-12-02

Family

ID=25929891

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94927620A Expired - Lifetime EP0721546B1 (fr) 1993-09-25 1994-09-16 Turbomachine a usure par abrasion reduite

Country Status (6)

Country Link
US (1) US5984629A (fr)
EP (1) EP0721546B1 (fr)
CN (1) CN1054418C (fr)
AU (1) AU7697094A (fr)
DE (1) DE59407403D1 (fr)
WO (1) WO1995008714A1 (fr)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1200012B1 (fr) 1999-06-02 2007-11-07 Sethel Interventional, Inc. Dispositif d'occlusion intracorporel
US7465153B2 (en) * 2001-08-08 2008-12-16 Addie Graeme R Diverter for reducing wear in a slurry pump
US20040136825A1 (en) * 2001-08-08 2004-07-15 Addie Graeme R. Multiple diverter for reducing wear in a slurry pump
DE10248162A1 (de) * 2002-10-16 2004-04-29 Ksb Aktiengesellschaft Einen Spalt definierendes, auf einer Welle anzuordnendes Element
SE0302752L (sv) * 2003-10-20 2005-02-15 Itt Mfg Enterprises Inc Centrifugalpump
DE102004035902B3 (de) * 2004-07-19 2006-03-02 Moros, Hans-Jürgen, Dipl.-Phys.Ing. Ring-Segmente-Repeller und Anordnungen von reziproken Repeller-Strömungs-Sytemen
US8205431B2 (en) * 2005-12-12 2012-06-26 United Technologies Corporation Bearing-like structure to control deflections of a rotating component
US7429160B2 (en) * 2006-01-10 2008-09-30 Weir Slurry Group, Inc. Flexible floating ring seal arrangement for rotodynamic pumps
EP2231030B1 (fr) 2007-12-21 2019-02-27 MicroVention, Inc. Système et procédé permettant de localiser une zone de détachement d'un implant amovible
EP2234562B1 (fr) 2007-12-21 2019-02-27 MicroVention, Inc. Système et procédé de détection de détachement d'implant
CA2736952C (fr) 2008-09-10 2016-11-29 Pentair Pump Group, Inc. Pompe centrifuge multi-etages a haut rendement et procede de montage
ES2676510T3 (es) * 2009-01-09 2018-07-20 Sulzer Management Ag Bomba centrífuga con un dispositivo para la retirada de partículas
CN101634305B (zh) * 2009-08-13 2010-12-01 寿光市康跃增压器有限公司 旋转扩压壁式可调压气机装置
EP2348220B1 (fr) 2009-12-30 2015-07-08 Grundfos Management A/S Pompe submersible
CA2795740C (fr) 2010-04-14 2018-03-13 Microvention, Inc. Dispositif d'implantation d'implant
US8979476B2 (en) 2010-07-21 2015-03-17 ITT Manfacturing Enterprises, LLC. Wear reduction device for rotary solids handling equipment
FR2998920B1 (fr) * 2012-12-04 2018-07-27 Thy Engineering Machine tournante telle qu'une turbine ou un compresseur.
GB2542233B (en) * 2015-08-26 2018-02-07 Weir Minerals Europe Ltd Rotary parts for a slurry pump
EP3309404B1 (fr) 2016-10-14 2022-03-02 Grundfos Holding A/S Pompe d'eau usée
EP3339654B1 (fr) * 2016-12-20 2021-03-03 Grundfos Holding A/S Pompe centrifuge
JP6682483B2 (ja) * 2017-08-16 2020-04-15 三菱重工業株式会社 遠心回転機械
CN111622980B (zh) * 2020-04-23 2022-06-07 宁波巨神制泵实业有限公司 一种机械密封防异物磨蚀结构

Family Cites Families (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7212098U (de) * 1972-11-30 Allweiler Ag Kreiselpumpe
DE390366C (de) * 1924-02-18 Paul Joseph Charles Marechal Entlastungsvorrichtung an Turbomaschinen
CH63412A (de) * 1913-01-22 1914-02-02 Suter Strickler Heinrich Zentrifugal-Jauchepumpe
US1634317A (en) * 1925-07-22 1927-07-05 Worthington Pump & Mach Corp Impeller balancing and sealing device
US2066505A (en) * 1935-08-31 1937-01-05 Michael Edward Walters Means for excluding abrasive carrying liquid from bearings and joints
DE832549C (de) * 1948-12-21 1952-02-25 Klein Schanzlin & Becker Ag Spaltabdichtung an Schmutzwasser-Kreiselpumpen und Wasserturbinen
US2644403A (en) * 1952-03-05 1953-07-07 Ingersoll Rand Co Device for preventing clogging in centrifugal pumps
DE1403833A1 (de) * 1961-06-02 1969-02-13 Eta Corp Kreiselpumpe
US3447475A (en) * 1967-01-09 1969-06-03 Albert Blum Centrifugal pump
US3535051A (en) * 1968-12-03 1970-10-20 Ellicott Machine Corp Recessed expeller vanes
GB1315547A (en) * 1969-05-23 1973-05-02 Staehle M Axial flow pump for pumping liquids containing solids in suspension
DE2210556A1 (de) * 1972-03-04 1973-09-06 Zimmermann & Jansen Gmbh Kreiselpumpe fuer die foerderung sandund kieshaltigen wassers
FI49345C (fi) * 1972-05-15 1975-05-12 Ahlstroem Oy Laite tiivistysraon tukkeutumisen estämiseksi etenkin jätevesipumpussa tai sentapaisessa.
DE2344576A1 (de) * 1973-09-04 1975-03-13 Neratoom Kreiselpumpe zum verarbeiten von schleifende bestandteile enthaltenden fluessigkeiten, insbesondere eine sandpumpe oder schmutzwasserpumpe
US3881840A (en) * 1973-09-05 1975-05-06 Neratoom Centrifugal pump for processing liquids containing abrasive constituents, more particularly, a sand pump or a waste-water pumper
SE381497B (sv) * 1975-02-10 1975-12-08 Stenberg Flygt Ab Anordning for balansering av radialkrafter i centrifugalpumpar
JPS6045287B2 (ja) * 1978-02-01 1985-10-08 株式会社日立製作所 混流形タ−ビン
CH627236A5 (fr) * 1978-02-14 1981-12-31 Martin Staehle
SU775394A1 (ru) * 1979-01-02 1980-10-30 Всесоюзный научно-исследовательский и проектно-конструкторский институт промышленных гидроприводов и гидроавтоматики Центробежный насос
JPS57153999A (en) * 1981-03-20 1982-09-22 Hitachi Ltd Casing of centrifugal pump
FI73796C (fi) * 1984-06-06 1987-11-09 Sarlin Ab Oy E Excenterpar vid loephjulet i en pump.
SU1262128A1 (ru) * 1985-05-06 1986-10-07 Kupryashov Vasilij D Рабочее колесо центробежного насоса
JPH01501645A (ja) * 1986-10-07 1989-06-08 ワーマン・インターナショナル・リミテッド 遠心ポンプ羽根車
US5106262A (en) * 1986-11-13 1992-04-21 Oklejas Robert A Idler disk
DE3808598A1 (de) * 1988-03-15 1989-09-28 Arkadij Isaakovic Zolotar Kreiselpumpe zum foerdern von fluessigkeiten mit festen abrasiven teilchen
DE3820062A1 (de) * 1988-06-13 1989-12-21 Klein Schanzlin & Becker Ag Stroemungsmaschine
AU636010B2 (en) * 1990-03-16 1993-04-08 M.I.M. Holdings Limited Improved slurry pump
IT222167Z2 (it) * 1990-10-02 1995-01-24 Zanussi Elettrodomestici Lavastoviglie con pompa centrifuga di circolazione
SE469040B (sv) * 1991-09-03 1993-05-03 Flygt Ab Itt Centrifugalpumphjul foer pump avsedd att pumpa vaetskor innehaallande fasta partiklar
JPH0674138A (ja) * 1992-08-27 1994-03-15 Hitachi Ltd 水力機械のシール構造

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9508714A1 *

Also Published As

Publication number Publication date
AU7697094A (en) 1995-04-10
US5984629A (en) 1999-11-16
WO1995008714A1 (fr) 1995-03-30
EP0721546B1 (fr) 1998-12-02
CN1054418C (zh) 2000-07-12
CN1131978A (zh) 1996-09-25
DE59407403D1 (de) 1999-01-14

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