EP0267445A3 - Multistage pump for submersible electric pumps - Google Patents

Multistage pump for submersible electric pumps Download PDF

Info

Publication number
EP0267445A3
EP0267445A3 EP87114884A EP87114884A EP0267445A3 EP 0267445 A3 EP0267445 A3 EP 0267445A3 EP 87114884 A EP87114884 A EP 87114884A EP 87114884 A EP87114884 A EP 87114884A EP 0267445 A3 EP0267445 A3 EP 0267445A3
Authority
EP
European Patent Office
Prior art keywords
pump
submersible electric
electric pumps
multistage pump
allows
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Withdrawn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
EP87114884A
Other languages
German (de)
French (fr)
Other versions
EP0267445A2 (en
Inventor
Lucio Mapelli
Luigi Assi
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.)
Gruppo Industriale Ercole Marelli SpA
Original Assignee
Gruppo Industriale Ercole Marelli SpA
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 Gruppo Industriale Ercole Marelli SpA filed Critical Gruppo Industriale Ercole Marelli SpA
Publication of EP0267445A2 publication Critical patent/EP0267445A2/en
Publication of EP0267445A3 publication Critical patent/EP0267445A3/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Withdrawn legal-status Critical Current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
    • 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
    • F04D13/10—Units comprising pumps and their driving means the pump being electrically driven for submerged use adapted for use in mining bore holes
    • 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
    • F04D29/60—Mounting; Assembling; Disassembling
    • F04D29/62—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps
    • F04D29/628—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps especially adapted for liquid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2260/00—Function
    • F05D2260/30—Retaining components in desired mutual position
    • F05D2260/36—Retaining components in desired mutual position by a form fit connection, e.g. by interlocking

Landscapes

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

Abstract

A multistage pump for submersible electric pumps is described in which the axial anchoring and the centering of the stage body assembly are achieved by means of anchoring and centering elements consisting of projections (12a, 12c) provided in the outer ca­ sing (1) of the pump. This allows a more solid and economical construction and a simplification of the assembly and disassembly of the pump, with a reduction of the number of inner structural locking elements.
The floating-ring (24) sealing construction of the stage bodies (2) allows an improvement of the sealing effect and of the hydraulic performance.
EP87114884A 1986-11-11 1987-10-13 Multistage pump for submersible electric pumps Withdrawn EP0267445A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT2229786 1986-11-11
IT8622297A IT1213377B (en) 1986-11-11 1986-11-11 MULTI-STATE PUMP FOR SUBMERSIBLE ELECTRIC PUMP.

Publications (2)

Publication Number Publication Date
EP0267445A2 EP0267445A2 (en) 1988-05-18
EP0267445A3 true EP0267445A3 (en) 1990-02-07

Family

ID=11194340

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87114884A Withdrawn EP0267445A3 (en) 1986-11-11 1987-10-13 Multistage pump for submersible electric pumps

Country Status (2)

Country Link
EP (1) EP0267445A3 (en)
IT (1) IT1213377B (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5154588A (en) * 1990-10-18 1992-10-13 Oryz Energy Company System for pumping fluids from horizontal wells
US5271725A (en) * 1990-10-18 1993-12-21 Oryx Energy Company System for pumping fluids from horizontal wells
IT1254599B (en) * 1992-02-07 1995-09-28 MULTI-STAGE CENTRIFUGAL PUMP
IT1263654B (en) * 1992-04-14 1996-08-27 Ebara Corp METAL SHEET PUMP BODY
ITVI20020095A1 (en) * 2002-05-15 2003-11-17 Vertical Srl MULTI-STAGE PUMP PARTICULARLY OF IMMERSION TYPE
EP1729013B1 (en) * 2005-05-31 2007-12-26 Pedrollo S.p.a. Submersible centrifugal pump
WO2007140549A1 (en) * 2006-06-06 2007-12-13 Akif Namazali Oglu Mirzaliyev The well rotary electric pump
CN102678627A (en) * 2012-05-09 2012-09-19 刘思花 Water outlet section for submersible electric pump in deep well and machining method
CN102937099B (en) * 2012-11-29 2015-06-10 台州锦霸工贸有限公司 Deep-well submersible pump
DE102016207598A1 (en) * 2016-05-03 2017-11-09 Robert Bosch Gmbh delivery unit
DE102016225533B4 (en) * 2016-12-20 2018-11-22 KSB SE & Co. KGaA Pump assembly and nuclear reactor with such a pump assembly
CA3050891C (en) 2017-09-18 2023-01-03 Jeremy Leonard Autonomous submersible pump

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB211848A (en) * 1923-02-24 1924-05-29 Sulzer Ag Improvements in or relating to multistage axial flow pumps
US2667128A (en) * 1950-12-13 1954-01-26 Dayton Pump & Mfg Company Submersible pump
US4293288A (en) * 1979-02-05 1981-10-06 Weber Industries, Inc. Submersible pump housing
JPS5870091A (en) * 1981-10-23 1983-04-26 Shindo Pump Kk Apparatus for clamping casing of slender submergible pump

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB211848A (en) * 1923-02-24 1924-05-29 Sulzer Ag Improvements in or relating to multistage axial flow pumps
US2667128A (en) * 1950-12-13 1954-01-26 Dayton Pump & Mfg Company Submersible pump
US4293288A (en) * 1979-02-05 1981-10-06 Weber Industries, Inc. Submersible pump housing
JPS5870091A (en) * 1981-10-23 1983-04-26 Shindo Pump Kk Apparatus for clamping casing of slender submergible pump

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN, vol. 7, no. 163 (M-229)[1308], 16th July 1983; & JP-A-58 070 091 (SHINDOU PONPU K.K.) 26-04-1983 *

Also Published As

Publication number Publication date
IT8622297A0 (en) 1986-11-11
EP0267445A2 (en) 1988-05-18
IT1213377B (en) 1989-12-20

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Inventor name: ASSI, LUIGI

Inventor name: MAPELLI, LUCIO