EP2025942A3 - Submersible multistage pump with impellers having diverging shrouds - Google Patents

Submersible multistage pump with impellers having diverging shrouds Download PDF

Info

Publication number
EP2025942A3
EP2025942A3 EP08161663A EP08161663A EP2025942A3 EP 2025942 A3 EP2025942 A3 EP 2025942A3 EP 08161663 A EP08161663 A EP 08161663A EP 08161663 A EP08161663 A EP 08161663A EP 2025942 A3 EP2025942 A3 EP 2025942A3
Authority
EP
European Patent Office
Prior art keywords
impeller
shrouds
assembly
impellers
diverging
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Withdrawn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
EP08161663A
Other languages
German (de)
French (fr)
Other versions
EP2025942A2 (en
Inventor
Russell Bookout
James J. Volk
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.)
Franklin Electric Co Inc
Original Assignee
Franklin Electric Co Inc
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 Franklin Electric Co Inc filed Critical Franklin Electric Co Inc
Publication of EP2025942A2 publication Critical patent/EP2025942A2/en
Publication of EP2025942A3 publication Critical patent/EP2025942A3/en
Withdrawn legal-status Critical Current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
    • F04D1/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
    • F04D1/06—Multi-stage pumps
    • F04D1/063—Multi-stage pumps of the vertically split casing type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D13/00—Pumping installations or systems
    • F04D13/02—Units comprising pumps and their driving means
    • F04D13/06—Units comprising pumps and their driving means the pump being electrically driven
    • F04D13/08—Units comprising pumps and their driving means the pump being electrically driven for submerged use
    • 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
    • F04D29/2238—Special flow patterns
    • F04D29/2255—Special flow patterns flow-channels with a special cross-section contour, e.g. ejecting, throttling or diffusing effect
    • 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
    • F04D29/448—Fluid-guiding means, e.g. diffusers especially adapted for liquid pumps bladed diffusers

Landscapes

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

Abstract

A centrifugal pump may include plural pump stages (300), each comprising an impeller assembly (304), a stationary disc assembly (306) and a diffuser assembly (302), all disposed about an impeller shaft (102) that is driven by a motor. The impeller assembly (304) may include upper and lower impeller shrouds (338,334) having facing surfaces, and a plurality of impeller vanes (344) extending between the surfaces of the shrouds (338,334) to define a plurality of flow passages (346) for liquid to flow outwardly from a central hub (340) of the impeller assembly (304). To assist in pressure recovery of the pump, the distance between the surfaces of the impeller shrouds (338,334) may increase as the radial distance from the central hub (340) increases.
EP08161663A 2007-08-01 2008-08-01 Submersible multistage pump with impellers having diverging shrouds Withdrawn EP2025942A3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US95338607P 2007-08-01 2007-08-01

Publications (2)

Publication Number Publication Date
EP2025942A2 EP2025942A2 (en) 2009-02-18
EP2025942A3 true EP2025942A3 (en) 2010-08-18

Family

ID=39790945

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08161663A Withdrawn EP2025942A3 (en) 2007-08-01 2008-08-01 Submersible multistage pump with impellers having diverging shrouds

Country Status (2)

Country Link
US (1) US20090047119A1 (en)
EP (1) EP2025942A3 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8556580B2 (en) * 2010-02-05 2013-10-15 Baker Hughes Incorporated Submersible pump for operation in sandy environments, diffuser assembly, and related methods
RU2471089C1 (en) * 2011-07-28 2012-12-27 Закрытое Акционерное Общество "Новомет-Пермь" Multi-stage impeller pump for operation on gas-liquid mixture with increased gas content (versions)
US10738794B2 (en) * 2014-08-08 2020-08-11 Schlumberger Technology Corporation Anti-swirl rib system for a pump
CN109838411A (en) * 2017-11-24 2019-06-04 台州阳春机电有限公司 A kind of impeller blade for centrifugal pump
US10883508B2 (en) * 2018-10-31 2021-01-05 Eddy Pump Corporation Eddy pump
US11629733B2 (en) 2020-09-23 2023-04-18 Schlumberger Technology Corporation Anti-swirl ribs in electric submersible pump balance ring cavity

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1050698A (en) * 1912-05-17 1913-01-14 Walter P Scheurmann Centrifugal pump, blower, and the like.
GB191221965A (en) * 1912-09-27 1913-04-10 Frank Knight Woodroffe Improvements in Centrifugal Liquid Pumps.
US2074650A (en) * 1934-01-24 1937-03-23 William S Holdaway Centrifugal pump
US2566795A (en) * 1946-12-20 1951-09-04 Egger Emile Rotor wheel for centrifugal pumps
EP0398377A2 (en) * 1989-05-19 1990-11-22 Vickers Incorporated Rotary hydraulic machine

Family Cites Families (33)

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Publication number Priority date Publication date Assignee Title
US111026A (en) * 1871-01-17 Irvif
US107805A (en) * 1870-09-27 Improvement in water-wheels
US1629141A (en) * 1927-05-17 Hydraulic pump
US765935A (en) * 1903-10-01 1904-07-26 Henry R Worthington Multistage centrifugal, turbine, or similar pump.
US890355A (en) * 1907-01-08 1908-06-09 Oscar Goeriz Centrifugal pump.
US984189A (en) * 1908-06-27 1911-02-14 William C Brown Centrifugal and turbine pump and the like.
US1109133A (en) * 1911-07-06 1914-09-01 John S Melchers Centrifugal blower.
US1675830A (en) * 1926-04-07 1928-07-03 Worthington Pump & Mach Corp High-pressure centrifugal pump
US1846947A (en) * 1930-05-30 1932-02-23 North American Mfg Vacuum pump
US1869802A (en) * 1931-07-13 1932-08-02 Holland Furnace Co Fan blade attachment
US2145598A (en) * 1937-06-01 1939-01-31 Fmc Corp Centrifugal pump
US2898031A (en) * 1954-09-24 1959-08-04 Voigt Woldemar Vaneless diffuser for radial flow machines
US3025069A (en) * 1957-01-14 1962-03-13 Bell & Gossett Co Seat for rotary mechanical seals
US3017837A (en) * 1959-02-17 1962-01-23 Thomas E Judd Multi stage centrifugal pump
US3116696A (en) * 1960-09-20 1964-01-07 Red Jacket Mfg Co Centrifugal pump
US3190226A (en) * 1963-09-13 1965-06-22 Thomas E Judd Centrifugal pumps
US3288074A (en) * 1964-11-02 1966-11-29 Weber Ind Inc Submersible pump
US3378229A (en) * 1965-07-16 1968-04-16 Gen Electric Radial flow turbine
US3779668A (en) * 1972-05-11 1973-12-18 Mcneil Corp Stage for a centrifugal pump
JPS5817357B2 (en) * 1978-03-07 1983-04-06 川崎重工業株式会社 Multi-stage turbo compressor
DE3147513A1 (en) * 1981-12-01 1983-06-09 Klein, Schanzlin & Becker Ag, 6710 Frankenthal RADIAL IMPELLER FOR CENTRIFUGAL PUMPS
US4678399A (en) * 1984-03-01 1987-07-07 Hughes Tool Company Resistant components for submersible pump stages
US4802819A (en) * 1987-09-14 1989-02-07 Mcneil (Ohio) Corporation Centrifugal pump
US5210116A (en) * 1988-01-19 1993-05-11 Yazaki Corporation Resin composite material containing graphite fiber
CN1009017B (en) * 1988-02-12 1990-08-01 中国科学院工程热物理研究所 Submersible pump
DE4092554T1 (en) * 1990-04-03 1998-11-05 Osoboe K Bjuro Konstruirovanij Rotary machine with fluid swirling in the working ring chamber
US5201848A (en) * 1991-10-01 1993-04-13 Conoco Inc. Deep well electrical submersible pump with uplift generating impeller means
JP3482668B2 (en) * 1993-10-18 2003-12-22 株式会社日立製作所 Centrifugal fluid machine
US5385445A (en) * 1993-12-03 1995-01-31 Ingersoll-Dresser Pump Company Centrifugal pump
JPH0886299A (en) * 1994-09-16 1996-04-02 Nippondenso Co Ltd Centrifugal blower
US6299409B1 (en) * 1998-04-10 2001-10-09 Denso Corporation Centrifugal type blower unit
US6499954B1 (en) * 2000-08-21 2002-12-31 Textron Automotive Company Inc. Centrifugal impeller and housing
US7290984B2 (en) * 2005-05-26 2007-11-06 Franklin Electric Co., Ltd. Multistage pump

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1050698A (en) * 1912-05-17 1913-01-14 Walter P Scheurmann Centrifugal pump, blower, and the like.
GB191221965A (en) * 1912-09-27 1913-04-10 Frank Knight Woodroffe Improvements in Centrifugal Liquid Pumps.
US2074650A (en) * 1934-01-24 1937-03-23 William S Holdaway Centrifugal pump
US2566795A (en) * 1946-12-20 1951-09-04 Egger Emile Rotor wheel for centrifugal pumps
EP0398377A2 (en) * 1989-05-19 1990-11-22 Vickers Incorporated Rotary hydraulic machine

Also Published As

Publication number Publication date
US20090047119A1 (en) 2009-02-19
EP2025942A2 (en) 2009-02-18

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