EP1431584A3 - Multi-stage electric pump - Google Patents

Multi-stage electric pump Download PDF

Info

Publication number
EP1431584A3
EP1431584A3 EP03380287A EP03380287A EP1431584A3 EP 1431584 A3 EP1431584 A3 EP 1431584A3 EP 03380287 A EP03380287 A EP 03380287A EP 03380287 A EP03380287 A EP 03380287A EP 1431584 A3 EP1431584 A3 EP 1431584A3
Authority
EP
European Patent Office
Prior art keywords
electric motor
electric pump
stage
stage electric
pump
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Withdrawn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
EP03380287A
Other languages
German (de)
French (fr)
Other versions
EP1431584A2 (en
Inventor
Josep Pages Pages
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.)
Bogemar SL
Original Assignee
Bogemar SL
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 Bogemar SL filed Critical Bogemar SL
Publication of EP1431584A2 publication Critical patent/EP1431584A2/en
Publication of EP1431584A3 publication Critical patent/EP1431584A3/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Withdrawn legal-status Critical Current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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
    • F04D15/02—Stopping of pumps, or operating valves, on occurrence of unwanted conditions
    • F04D15/0209—Stopping of pumps, or operating valves, on occurrence of unwanted conditions responsive to a condition of the working fluid

Landscapes

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

Abstract

Multi-stage electric pump (1), which comprises a multi-stage pump (2) coupled to an electric motor (3). The multi-stage pump (2) is essentially formed from a tubular body (4) which, at the end opposite that of the electric motor (3), is equipped with a water inlet (6) and a suction chamber (7) and, at the other end beside the electric motor (3), with a discharge chamber (8) and a water outlet (9), which is equipped with a pressure detector (10) and a non-return valve (11) equipped with a zero or minimum discharge detector (12).
EP03380287A 2002-12-18 2003-12-12 Multi-stage electric pump Withdrawn EP1431584A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ES200203032 2002-12-18
ES200203032U ES1053407Y (en) 2002-12-18 2002-12-18 MULTICELLULAR PUMP.

Publications (2)

Publication Number Publication Date
EP1431584A2 EP1431584A2 (en) 2004-06-23
EP1431584A3 true EP1431584A3 (en) 2005-07-27

Family

ID=8502758

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03380287A Withdrawn EP1431584A3 (en) 2002-12-18 2003-12-12 Multi-stage electric pump

Country Status (2)

Country Link
EP (1) EP1431584A3 (en)
ES (1) ES1053407Y (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8172523B2 (en) 2006-10-10 2012-05-08 Grudfos Pumps Corporation Multistage pump assembly having removable cartridge
US7946810B2 (en) 2006-10-10 2011-05-24 Grundfos Pumps Corporation Multistage pump assembly
US7740182B2 (en) 2006-11-08 2010-06-22 Grundfos Pumps Corporation Method and system for controlled release of hot water from a fixture
CN114294236B (en) * 2022-01-21 2024-01-30 浙江南元泵业有限公司 Variable-lift energy-saving vertical multistage centrifugal pump
CN117967579B (en) * 2024-04-01 2024-06-11 烟台大学 High-pressure high-lift pump with external liquid collecting pipe

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2289891A1 (en) * 1974-11-04 1976-05-28 Wenderoth P Magnetic sensor for fluid flow detection - produces an electric signal when the flow reaches a predetermined value
EP0528726A1 (en) * 1991-08-16 1993-02-24 POMPES SALMSON Société Anonyme à directoire dite: Process and apparatus for controlling a pumping station and modular detection device for such a station
EP0664398A1 (en) * 1994-01-21 1995-07-26 WILO GmbH Centrifugal pump with backflow prevention valve
GB2293403A (en) * 1994-09-21 1996-03-27 Esmaco Pte Ltd Variable-speed controlled booster pump for water supply system
US6234759B1 (en) * 1998-07-16 2001-05-22 Ewald Hennel Method for regulating a fluid pressure

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2289891A1 (en) * 1974-11-04 1976-05-28 Wenderoth P Magnetic sensor for fluid flow detection - produces an electric signal when the flow reaches a predetermined value
EP0528726A1 (en) * 1991-08-16 1993-02-24 POMPES SALMSON Société Anonyme à directoire dite: Process and apparatus for controlling a pumping station and modular detection device for such a station
EP0664398A1 (en) * 1994-01-21 1995-07-26 WILO GmbH Centrifugal pump with backflow prevention valve
GB2293403A (en) * 1994-09-21 1996-03-27 Esmaco Pte Ltd Variable-speed controlled booster pump for water supply system
US6234759B1 (en) * 1998-07-16 2001-05-22 Ewald Hennel Method for regulating a fluid pressure

Also Published As

Publication number Publication date
EP1431584A2 (en) 2004-06-23
ES1053407U (en) 2003-04-01
ES1053407Y (en) 2003-07-16

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