MXPA04001132A - Multi-stage electric pump unit. - Google Patents

Multi-stage electric pump unit.

Info

Publication number
MXPA04001132A
MXPA04001132A MXPA04001132A MXPA04001132A MXPA04001132A MX PA04001132 A MXPA04001132 A MX PA04001132A MX PA04001132 A MXPA04001132 A MX PA04001132A MX PA04001132 A MXPA04001132 A MX PA04001132A MX PA04001132 A MXPA04001132 A MX PA04001132A
Authority
MX
Mexico
Prior art keywords
pump
impeller
diffuser
electric pump
stage
Prior art date
Application number
MXPA04001132A
Other languages
Spanish (es)
Inventor
Elena Rodriguez Hernande Maria
Original Assignee
Indar Maquinas Hidraulicas S L
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 Indar Maquinas Hidraulicas S L filed Critical Indar Maquinas Hidraulicas S L
Publication of MXPA04001132A publication Critical patent/MXPA04001132A/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
    • 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
    • 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
    • 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 multi-stage electric pump unit, of those that consist of a multi-stage centrifugal pump with an electric motor coupled directly to the pump, where each stage consists of a pump, an impeller and a diffuser, which each have channels with vaned and vaneless zones. These zones are delimited by a shroud-surface and a hub-surface, where the b angle is the angle of the tangent at each point, characterized because, given that the Y-axis of the electric pump is the radial co-ordinate and X is the axial co-ordinate, for flow rates, Q, between 2500 and 8000 liters/minute, the points of the impeller and diffuser surface comply with the sixth degree polynomial equation, Y=f(x)=Ax6+Bx5 +Cx4+Dx3+Ex2+Fx+G, and changing the constants of the equation for each part-zone of the diffuser and impeller. Applicable to hydraulic machines.
MXPA04001132A 2003-03-13 2004-02-04 Multi-stage electric pump unit. MXPA04001132A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES200300601A ES2268912B1 (en) 2003-03-13 2003-03-13 MULTIETAPA ELECTRIC PUMP GROUP.

Publications (1)

Publication Number Publication Date
MXPA04001132A true MXPA04001132A (en) 2004-09-15

Family

ID=32947016

Family Applications (1)

Application Number Title Priority Date Filing Date
MXPA04001132A MXPA04001132A (en) 2003-03-13 2004-02-04 Multi-stage electric pump unit.

Country Status (5)

Country Link
US (1) US20040179949A1 (en)
CN (1) CN1530555A (en)
ES (1) ES2268912B1 (en)
IT (1) ITMI20032065A1 (en)
MX (1) MXPA04001132A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102465882A (en) * 2010-11-10 2012-05-23 上海福思特流体机械有限公司 Multi-stage centrifugal pump with improved impeller arrangement
CN104179727B (en) * 2013-05-22 2019-02-05 德昌电机(深圳)有限公司 Pump
US9574562B2 (en) 2013-08-07 2017-02-21 General Electric Company System and apparatus for pumping a multiphase fluid
US20180225409A1 (en) * 2014-01-14 2018-08-09 Charles C. Solvason Performance analysis and monitoring of radial turbomachinery
CN113464497B (en) * 2021-06-24 2024-09-20 珠海格力电器股份有限公司 Diffuser, compressor and air cycle machine

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2536365A1 (en) * 1982-11-18 1984-05-25 Onera (Off Nat Aerospatiale) BLADE FOR AIRCRAFT PROPELLER
CN1009017B (en) * 1988-02-12 1990-08-01 中国科学院工程热物理研究所 Submersible pump
FR2628062B1 (en) * 1988-03-07 1990-08-10 Aerospatiale BLADE FOR HIGH PERFORMANCE FAIRED PROPELLER, MULTI-BLADE PROPELLER PROVIDED WITH SUCH BLADES AND TAIL ROTOR ARRANGEMENT WITH FAIRED PROPELLER FOR A TURNED AIRCRAFT
JPH0646035B2 (en) * 1988-09-14 1994-06-15 株式会社日立製作所 Multi-stage centrifugal compressor
US5375976A (en) * 1990-07-27 1994-12-27 Institut Francais Du Petrole Pumping or multiphase compression device and its use
US5330318A (en) * 1992-05-28 1994-07-19 Nikkiso Co., Ltd. Centrifugal pump with an improved axial diffusor
US5961289A (en) * 1995-11-22 1999-10-05 Deutsche Forshungsanstalt Fur Luft-Und Raumfahrt E.V. Cooling axial flow fan with reduced noise levels caused by swept laminar and/or asymmetrically staggered blades
WO1997033092A1 (en) * 1996-03-06 1997-09-12 Hitachi, Ltd. Centrifugal compressor and diffuser for the centrifugal compressor
JPH11173296A (en) * 1997-12-11 1999-06-29 Ebara Corp Diffuser device for pump
US6739835B2 (en) * 2001-08-24 2004-05-25 Lg Electronics Inc. Blade part in turbofan

Also Published As

Publication number Publication date
ITMI20032065A1 (en) 2004-09-14
ES2268912B1 (en) 2008-02-16
ES2268912A1 (en) 2007-03-16
CN1530555A (en) 2004-09-22
US20040179949A1 (en) 2004-09-16

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