WO2005061902A1 - Pompe hydraulique a ecoulement axial en ligne a rotor de moteur electrique immerge - Google Patents

Pompe hydraulique a ecoulement axial en ligne a rotor de moteur electrique immerge Download PDF

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Publication number
WO2005061902A1
WO2005061902A1 PCT/SI2003/000047 SI0300047W WO2005061902A1 WO 2005061902 A1 WO2005061902 A1 WO 2005061902A1 SI 0300047 W SI0300047 W SI 0300047W WO 2005061902 A1 WO2005061902 A1 WO 2005061902A1
Authority
WO
WIPO (PCT)
Prior art keywords
hydraulic
pump
electric motor
line axial
bearing
Prior art date
Application number
PCT/SI2003/000047
Other languages
English (en)
Inventor
Jurica Zadravec
Marko Mohar
Original Assignee
Imp Pumps, D.O.O.
Kapun, Milan
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 Imp Pumps, D.O.O., Kapun, Milan filed Critical Imp Pumps, D.O.O.
Priority to PCT/SI2003/000047 priority Critical patent/WO2005061902A1/fr
Priority to AU2003286993A priority patent/AU2003286993A1/en
Publication of WO2005061902A1 publication Critical patent/WO2005061902A1/fr

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
    • F04D3/00—Axial-flow 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
    • 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
    • F04D13/0606—Canned motor pumps
    • F04D13/064—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
    • F04D13/0646—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

Definitions

  • Hydraulic in-line axial-flow pump with a submerged rotor of an electric motor Hydraulic in-line axial-flow pump with a submerged rotor of an electric motor
  • the invention concerns a hydraulic in-line axial-flow pump, in which a rotor of a pump electric motor, the rotor being submerged in a delivery medium, is joined together with one or several hydraulic rotors of the pump into a unit.
  • the technical problem to be solved by the present invention exists in how to join together a rotor of a pump electric motor and one or several hydraulic rotors of the pump in a hydraulic in-line axial- flow pump to form a unit.
  • the hydraulic in-line axial-flow pump of the invention with a submerged rotor of an electric motor, characterized in that a ferromagnetic tubular core of the rotor of the pump electric motor, which tubular core is provided with permanent magnets, is fastened to one or several hydraulic rotors having an axis that is coaxial with a geometrical axis of the tubular core, and that the axis of the hydraulic rotors is supported by a first bearing and by a second bearing and that a casing of the first bearing is fastened to a wall of a through-hole in a first half of pump housing by means of first tie rods and a casing of the second bearing is fastened to a wall of a through-hole in a second half of pump housing by means of second tie rods, the first and the second tie rods forming hydraulic guide members for the hydraulic rotors, and that the first and the second bearing are constructed by means of a thrust bearing and a radial bearing.
  • the hydraulic in-line axial-flow pump of the invention is characterized also in that the walls of the through-holes in the first and the second half, respectively, pump housing continuously pass into each other across an inner wall of the ferromagnetic tubular core.
  • the hydraulic in-line axial-flow pump of the invention is further characterized in that the permanent magnets are fastened to an outer wall of the ferromagnetic tubular core and that they are separated by a gap from an inner wall of a centering tube, outside which a stator of the pump electric motor is located.
  • the hydraulic in-line axial-flow pump of the invention is further characterized in that the centering tube is pressure cast on a stator core of the pump electric motor and sits close on both halves of the pump housing and a first sealing and a second sealing, respectively, are inserted between the centering tube and the corresponding half of the pump housing.
  • a ferromagnetic tubular core 8 of said rotor is fastened to one or several hydraulic rotors of the pump.
  • FIG 1 the hydraulic rotors 7a, 7b are shown.
  • the axis 6 of the hydraulic rotors 7a, 7b is coaxial with a geometrical axis A of the tubular core 8 of the rotor of the pump electric motor.
  • a casing 3a of a first bearing 5a, 4a is fastened to a wall la' of a through-hole in a first half la of the pump housing by means of first tie rods 2a.
  • a casing 3b of a second bearing 5b, 4b is fastened to a wall lb' of a through-hole in a first half lb of the pump housing by means of second tie rods 2b.
  • first tie rods 2a and the second tie rods 2b form hydraulic guide members for the hydraulic rotors 7a, 7b.
  • the walls la', lb' of the through-holes in the first and second halves la, lb, respectively, of the pump housing continuously pass into each other across an inner wall 8' of the ferromagnetic tubular core 8 continuously.
  • the hydraulic rotors 7a, 7b push a fluid flow F through the through-holes of the halves la and lb of the pump housing which are equipped to be attached to a pipe.
  • the tubular core 8 of the rotor of the pump electric motor is provided with permanent magnets 9. They are fastened to an outer wall of the ferromagnetic tubular core 8.
  • the permanent magnets 9 are separated by a gap 9' from an inner wall of a centering tube lc.
  • a stator core 10 and a stator winding 11 of the pump electric motor are located on its outer side in a special cave Id within both halves la, lb of the pump housing a stator core 10 and a stator winding 11 of the pump electric motor are located.
  • the axis 6 of the hydraulic rotors 7a, 7b is supported by the first bearing 5a, 4a and by the second bearing 5b, 4b.
  • the first and the second bearings 5a, 4a; 5b, 4b, respectively, are constructed by means of thrust bearings 4a and 4b, respectively, and by means of radial bearings 5a and 5b, respectively.
  • the centering tube lc is pressure cast on the stator core 10 of the pump electric motor and sits close on both halves la, lb of the pump housing.
  • the centering tube lc centers all component parts of the pump.
  • a first sealing le and a second sealing If, respectively, are inserted between the centering tube lc and the corresponding half la, lb of the pump housing.
  • the centering tube lc thus in a watertight manner separates the stator winding 11 from the rotor of the pump electric motor.
  • the electromagnetic torque exercised on the permanent magnets 9 is transferred through the tubular core 8 of the rotor on hydraulic rotors 7a, 7b of the pump, which generate the hydraulic pressure needed by the medium to flow in the axial direction.
  • Such pumps may actually be driven by an asynchronous electric motor, yet the number of its revolutions is limited by the mains frequency.
  • the hydraulic rotors of the hydraulic axial-flow pumps need a high specific number of revolutions. For this reason in such pumps electronically commutated electric motors are used.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)

Abstract

L'invention concerne une partie centrale tubulaire (8) de rotor de moteur de pompe électrique équipée d'aimants permanents (9) et fixée à un ou plusieurs rotor(s) hydraulique(s) (7a, 7b) possédant un arbre (6) coaxial à un axe géométrique (A) de ladite partie centrale tubulaire (8). Des boîtiers (3a, 3b) de paliers (5a, 4a; 5b, 4b) supportant l'axe (6) des rotors hydrauliques (7a, 7b) sont, au moyen d'éléments de guidage hydrauliques, fixés respectivement aux parois (1a', 1b') de passage ménagés dans une première et une seconde moitié (1a, 1b) du corps de pompe. Les parois (1a', 1b') des passage communiquent en permanence au niveau d'une paroi intérieure (8') de la partie centrale tubulaire (8) ferromagnétique.
PCT/SI2003/000047 2003-12-22 2003-12-22 Pompe hydraulique a ecoulement axial en ligne a rotor de moteur electrique immerge WO2005061902A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/SI2003/000047 WO2005061902A1 (fr) 2003-12-22 2003-12-22 Pompe hydraulique a ecoulement axial en ligne a rotor de moteur electrique immerge
AU2003286993A AU2003286993A1 (en) 2003-12-22 2003-12-22 Hydraulic in-line axial-flow pump with a submerged rotor of an electric motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/SI2003/000047 WO2005061902A1 (fr) 2003-12-22 2003-12-22 Pompe hydraulique a ecoulement axial en ligne a rotor de moteur electrique immerge

Publications (1)

Publication Number Publication Date
WO2005061902A1 true WO2005061902A1 (fr) 2005-07-07

Family

ID=34709495

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SI2003/000047 WO2005061902A1 (fr) 2003-12-22 2003-12-22 Pompe hydraulique a ecoulement axial en ligne a rotor de moteur electrique immerge

Country Status (2)

Country Link
AU (1) AU2003286993A1 (fr)
WO (1) WO2005061902A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014012150A1 (fr) * 2012-07-20 2014-01-23 Genesis Energy Recovery Technology Pty Ltd Dispositif de production d'électricité, dispositif de réduction de pression de fluide et pompe à fluide
CN103790837A (zh) * 2014-01-17 2014-05-14 苏州泰格动力机器有限公司 轴流式永磁电机水泵
WO2017024203A1 (fr) 2015-08-05 2017-02-09 Wade Spicer Pompe sans joint d'étanchéité à entraînement magnétique
CN106567837A (zh) * 2016-10-31 2017-04-19 新界泵业集团股份有限公司 轴流式热水循环泵
CN106640677A (zh) * 2016-10-31 2017-05-10 新界泵业集团股份有限公司 改进转子结构的永磁循环泵
EP2725232A3 (fr) * 2012-10-23 2017-08-23 Nidec Motor Corporation Pompe à flux axial avec moteur intégré

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE807589C (de) * 1949-03-18 1951-07-02 Wilhelm Oplaender Dipl Ing Wasserumlaufbeschleuniger fuer Heizungs- und Kuehlanlagen
DE974755C (de) * 1948-06-23 1961-04-20 Hans Dr-Ing Moser Umwaelzpumpe mit einem Elektromotor, der einen als Foerderorgan ausgebildeten Rotor aufweist
GB2042279A (en) * 1979-02-13 1980-09-17 Satchwell Controls Ltd Electric Pump
DE3640657A1 (de) * 1986-11-28 1988-06-09 Heinz Turbanisch Pumpe fuer fluessige medien
US5205721A (en) * 1991-02-13 1993-04-27 Nu-Tech Industries, Inc. Split stator for motor/blood pump

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE974755C (de) * 1948-06-23 1961-04-20 Hans Dr-Ing Moser Umwaelzpumpe mit einem Elektromotor, der einen als Foerderorgan ausgebildeten Rotor aufweist
DE807589C (de) * 1949-03-18 1951-07-02 Wilhelm Oplaender Dipl Ing Wasserumlaufbeschleuniger fuer Heizungs- und Kuehlanlagen
GB2042279A (en) * 1979-02-13 1980-09-17 Satchwell Controls Ltd Electric Pump
DE3640657A1 (de) * 1986-11-28 1988-06-09 Heinz Turbanisch Pumpe fuer fluessige medien
US5205721A (en) * 1991-02-13 1993-04-27 Nu-Tech Industries, Inc. Split stator for motor/blood pump

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014012150A1 (fr) * 2012-07-20 2014-01-23 Genesis Energy Recovery Technology Pty Ltd Dispositif de production d'électricité, dispositif de réduction de pression de fluide et pompe à fluide
EP2725232A3 (fr) * 2012-10-23 2017-08-23 Nidec Motor Corporation Pompe à flux axial avec moteur intégré
CN103790837A (zh) * 2014-01-17 2014-05-14 苏州泰格动力机器有限公司 轴流式永磁电机水泵
CN103790837B (zh) * 2014-01-17 2017-01-04 苏州泰格动力机器有限公司 轴流式永磁电机水泵
WO2017024203A1 (fr) 2015-08-05 2017-02-09 Wade Spicer Pompe sans joint d'étanchéité à entraînement magnétique
EP3332126A4 (fr) * 2015-08-05 2019-03-27 Wade Spicer Pompe sans joint d'étanchéité à entraînement magnétique
EP4102075A1 (fr) * 2015-08-05 2022-12-14 Wade Spicer Pompe sans joint à entraînement magnétique
CN106567837A (zh) * 2016-10-31 2017-04-19 新界泵业集团股份有限公司 轴流式热水循环泵
CN106640677A (zh) * 2016-10-31 2017-05-10 新界泵业集团股份有限公司 改进转子结构的永磁循环泵

Also Published As

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