EP2199616B1 - Pompe centrifuge avec arbre fixe - Google Patents

Pompe centrifuge avec arbre fixe Download PDF

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Publication number
EP2199616B1
EP2199616B1 EP09012896.8A EP09012896A EP2199616B1 EP 2199616 B1 EP2199616 B1 EP 2199616B1 EP 09012896 A EP09012896 A EP 09012896A EP 2199616 B1 EP2199616 B1 EP 2199616B1
Authority
EP
European Patent Office
Prior art keywords
pump
shaft
centrifugal pump
pump according
centrifugal
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.)
Not-in-force
Application number
EP09012896.8A
Other languages
German (de)
English (en)
Other versions
EP2199616A3 (fr
EP2199616A2 (fr
Inventor
Michael John Werson
Colin Richard French
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.)
Buehler Motor GmbH
Original Assignee
Buehler Motor GmbH
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 Buehler Motor GmbH filed Critical Buehler Motor GmbH
Publication of EP2199616A2 publication Critical patent/EP2199616A2/fr
Publication of EP2199616A3 publication Critical patent/EP2199616A3/fr
Application granted granted Critical
Publication of EP2199616B1 publication Critical patent/EP2199616B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • F04D13/0666—Units comprising pumps and their driving means the pump being electrically driven the motor being of the plane gap 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
    • F04D13/021—Units comprising pumps and their driving means containing a coupling
    • F04D13/024—Units comprising pumps and their driving means containing a coupling a magnetic coupling
    • F04D13/026—Details of the bearings
    • 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
    • F04D13/021—Units comprising pumps and their driving means containing a coupling
    • F04D13/024—Units comprising pumps and their driving means containing a coupling a magnetic coupling
    • F04D13/027—Details of the magnetic circuit
    • 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
    • F04D13/0606—Canned motor pumps
    • F04D13/0633—Details of the bearings
    • 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
    • F04D13/0646—Units comprising pumps and their driving means the pump being electrically driven the hollow pump or motor shaft being the conduit for the working fluid
    • 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
    • F04D29/04—Shafts or bearings, or assemblies thereof
    • F04D29/041—Axial thrust balancing
    • F04D29/0413—Axial thrust balancing hydrostatic; hydrodynamic thrust bearings
    • 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
    • F04D29/04—Shafts or bearings, or assemblies thereof
    • F04D29/043—Shafts
    • 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
    • F04D29/04—Shafts or bearings, or assemblies thereof
    • F04D29/046—Bearings
    • F04D29/047—Bearings hydrostatic; hydrodynamic
    • 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
    • F04D29/58—Cooling; Heating; Diminishing heat transfer
    • 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
    • F05D2240/00—Components
    • F05D2240/60—Shafts
    • F05D2240/61—Hollow
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49229—Prime mover or fluid pump making
    • Y10T29/49236—Fluid pump or compressor making
    • Y10T29/49245—Vane type or other rotary, e.g., fan

Definitions

  • the characterizing part of claim 1 achieves that an exact association between the axis and an inner wall region of the pump head is achieved, whereby the annular leakage gap is reduced and the pump efficiency is significantly improved. This particularly affects centrifugal pumps with high delivery pressure but low delivery volume.
  • the axial bearing ring serves for the axial bearing of the pump impeller on the axle.
  • the axis projects with a substantial part of its length freely into a cavity which is delimited by the heat-conducting body. This cavity is flowed through by the pumped medium to cool the pump.
  • Fig. 1 shows a sectional view through a driven by an axial motor 56 centrifugal pump 1, comprising a pump housing 4, consisting of the first pump housing part 2, a second pump housing part 24, with a split plate 18 and a drying chamber 54 delimiting a motor housing 14, a pump impeller 5, on an axis 3 is rotatably supported via a fixed bearing 12, which fixed bearing 12 axially on the one hand to a second Axiallagerring 8 and the other to a first Axiallagerring 9 is supported, consisting of aluminum, a part of the stator 55 forming heat conducting body 10, stator 15, stator windings 16, a Printed circuit board 17, which is fastened with stator mounting screws 21 on the heat conducting body 10 to the second pump housing part 24.
  • Fig. 4 shows spatial views of the first pump housing part 2, with the mandrel 22, the spokes 23, the passage 25 and a receiving space 44 for the first thrust bearing ring.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Thermal Sciences (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Claims (15)

  1. Pompe centrifuge (1) fonctionnant par moteur électrique et comprenant un axe (3) fixe sur lequel est montée rotative une roue mobile de pompe (5), qui coopère avec un stator à commutation électronique, la pompe comprenant également un carter de pompe (4) en plusieurs parties, qui présente un embout d'aspiration (6) et un embout de refoulement (7), l'axe (3) étant relié de manière fixe à une première partie de carter de pompe (2), qui est désignée par tête de pompe et comporte l'embout d'aspiration (6) ou est raccordée à celui-ci, et l'axe (3) formant un axe de symétrie par rapport à une zone de paroi intérieure de la tête de pompe (2), caractérisée en ce qu'une partie essentielle de l'axe (3) s'engage librement dans une cavité, qui est délimitée par un corps de transmission de chaleur (10), et en ce qu'une bague de palier axial (9) pour assurer l'appui de la roue mobile de pompe (5) est logée dans le corps de transmission de chaleur (10).
  2. Pompe centrifuge selon la revendication 1, caractérisée en ce que l'axe (3) est fixé exclusivement dans la première partie de carter de pompe (2).
  3. Pompe centrifuge selon la revendication 1 ou la revendication 2, caractérisée en ce que l'axe (3) est soutenu exclusivement dans la première partie de carter de pompe (2) ou dans des parties fixes avec la tête de pompe.
  4. Pompe centrifuge selon la revendication 1, 2 ou 3, caractérisée en ce que l'axe (3) est relié par complémentarité de formes avec un appendice de réception (22) de la première partie de carter de pompe (2).
  5. Pompe centrifuge selon la revendication 1, 2, 3 ou 4, caractérisée en ce que l'axe (3) est partiellement creux.
  6. Pompe centrifuge selon la revendication 1, 2, 3 ou 4, caractérisée en ce que l'axe (3) est creux sur la totalité de sa longueur.
  7. Pompe centrifuge selon l'une au moins des revendications 1 à 6, caractérisée en ce que l'axe (3) est réalisé en un matériau céramique.
  8. Pompe centrifuge selon l'une au moins des revendications 1 à 7, caractérisée en ce qu'une deuxième bague de palier axial (8) pour le montage axial de la roue mobile de pompe, est agencée sur l'axe (3).
  9. Pompe centrifuge selon l'une au moins des revendications 1 à 7, caractérisée en ce qu'une deuxième bague de palier axial (8) pour le montage axial de la roue mobile de pompe, est agencée dans la tête de pompe (2).
  10. Pompe centrifuge selon la revendication 9, caractérisée en ce qu'entre la première bague de palier axial (9) et le corps de transmission de chaleur (10), est agencée un anneau de logement de palier (20).
  11. Pompe centrifuge selon l'une au moins des revendications 7 à 9, caractérisée en ce que la roue mobile de pompe (5) est agencée et montée librement rotative entre les deux bagues de palier axial (8, 9).
  12. Pompe centrifuge selon la revendication 10, caractérisée en ce que la roue mobile de pompe (5) présente un palier fixe (12) cylindrique creux, qui présente des surfaces de glissement sur les deux côtés frontaux, lui permettant de s'appuyer contre les bagues de palier axial (8, 9).
  13. Pompe centrifuge selon l'une au moins des revendications précédentes, caractérisée en ce que le corps de transmission de chaleur (10) s'avance dans le compartiment de pompe.
  14. Pompe centrifuge selon la revendication 1, caractérisée en ce que le tronçon de l'axe (3) s'engageant librement dans la cavité (11), occupe une part d'environ 20-60% de la longueur totale de l'axe (3).
  15. Pompe centrifuge selon l'une au moins des revendications précédentes, caractérisée en ce qu'une partie du fluide à refouler peut être ramené, par l'intermédiaire d'un parcours fermé, de la zone de pression de la pompe, dans le circuit d'écoulement de fluide principal, en passant par l'intermédiaire de l'entrefer entre la roue mobile de pompe (5) et une plaque de cloisonnement (18) de la deuxième pièce de carter de pompe (24), un espace intermédiaire entre la première bague de palier axial (9) et l'axe (3), la cavité (11), un canal d'écoulement (26) de l'axe (3) et un passage (25) d'un appendice de réception (22) de la tête de pompe.
EP09012896.8A 2008-12-19 2009-10-13 Pompe centrifuge avec arbre fixe Not-in-force EP2199616B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102008064099.9A DE102008064099B4 (de) 2008-12-19 2008-12-19 Kreiselpumpe mit einer feststehenden Achse

Publications (3)

Publication Number Publication Date
EP2199616A2 EP2199616A2 (fr) 2010-06-23
EP2199616A3 EP2199616A3 (fr) 2012-07-11
EP2199616B1 true EP2199616B1 (fr) 2014-12-10

Family

ID=41319468

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09012896.8A Not-in-force EP2199616B1 (fr) 2008-12-19 2009-10-13 Pompe centrifuge avec arbre fixe

Country Status (3)

Country Link
US (1) US8303268B2 (fr)
EP (1) EP2199616B1 (fr)
DE (1) DE102008064099B4 (fr)

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WO2012042919A1 (fr) * 2010-09-27 2012-04-05 日機装株式会社 Connecteur étanche à la pression et antidéflagrant
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CN104196750B (zh) * 2014-09-01 2016-05-18 青蛙泵业有限公司 一种深井泵转子长轴及其加工工艺
TW201634817A (zh) * 2015-03-30 2016-10-01 林聖梁 抽水馬達裝置
CN106300722A (zh) * 2015-05-18 2017-01-04 德昌电机(深圳)有限公司 电机与电动泵
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DE102016202417A1 (de) * 2016-02-17 2017-08-17 Bühler Motor GmbH Kreiselpumpe
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US10830252B2 (en) 2017-01-27 2020-11-10 Regal Beloit Australia Pty Ltd Centrifugal pump assemblies having an axial flux electric motor and methods of assembly thereof
US10731653B2 (en) * 2017-01-27 2020-08-04 Regal Beloit Australia Pty Ltd Centrifugal pump assemblies having an axial flux electric motor and methods of assembly thereof
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DE102017204947A1 (de) * 2017-03-23 2018-09-27 Volkswagen Aktiengesellschaft Außenläufer-Rotor einer Pumpe sowie Pumpe mit einem solchen Außenläufer-Rotor
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US11724813B2 (en) 2021-05-24 2023-08-15 General Electric Company Midshaft rating for turbomachine engines
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Also Published As

Publication number Publication date
US20100158725A1 (en) 2010-06-24
EP2199616A3 (fr) 2012-07-11
DE102008064099A1 (de) 2010-07-01
US8303268B2 (en) 2012-11-06
EP2199616A2 (fr) 2010-06-23
DE102008064099B4 (de) 2016-05-04

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