EP0664400A1 - Pompe à entraînement magnétique - Google Patents

Pompe à entraînement magnétique Download PDF

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Publication number
EP0664400A1
EP0664400A1 EP94118999A EP94118999A EP0664400A1 EP 0664400 A1 EP0664400 A1 EP 0664400A1 EP 94118999 A EP94118999 A EP 94118999A EP 94118999 A EP94118999 A EP 94118999A EP 0664400 A1 EP0664400 A1 EP 0664400A1
Authority
EP
European Patent Office
Prior art keywords
impeller
pump
bearing surface
rotor
magnet
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.)
Granted
Application number
EP94118999A
Other languages
German (de)
English (en)
Other versions
EP0664400B1 (fr
Inventor
Stefan C/O Munsch Kunststoff- Munsch
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.)
Munsch Kuststoff-Schweisstechnik GmbH
Original Assignee
Munsch Kuststoff-Schweisstechnik 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 Munsch Kuststoff-Schweisstechnik GmbH filed Critical Munsch Kuststoff-Schweisstechnik GmbH
Publication of EP0664400A1 publication Critical patent/EP0664400A1/fr
Application granted granted Critical
Publication of EP0664400B1 publication Critical patent/EP0664400B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • 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
    • 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
    • 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
    • F04D29/0465—Ceramic bearing designs
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
    • F05C2203/00—Non-metallic inorganic materials
    • F05C2203/08—Ceramics; Oxides
    • F05C2203/0804—Non-oxide ceramics
    • F05C2203/0813—Carbides

Definitions

  • the invention relates to a magnetic pump for corrosive media, with a motor-driven drive motor arranged on the outer circumference of a containment shell, with a arranged inside the containment shell, which can be taken by the drive motor during rotation and is magnetically coupled with this and one at one end rotatably with the magnet rotor and at its other end, a pump shaft connected in a rotationally fixed manner, which is mounted radially in a pump back part in two sliding bearing bushings made of silicon carbide, the surfaces of the containment shell, the pump back part, the impeller and the magnet rotor which delimit the inside of the pump being made of plastic.
  • Impeller and magnet rotor usually have injected or coated metal bushings for torque transmission. These have to be sealed with aggressive elements against the aggressive media.
  • the invention has for its object to further develop the generic magnetic pump in such a way that the corrosion resistance against aggressive media is further improved with a simplified structure.
  • the pump shaft consists of hard ceramic; that the slide bearing bushing adjacent to the impeller for the pump shaft has a first exposed annular end bearing surface facing the impeller; that the slide bearing bushing adjacent to the magnetic rotor for the pump shaft has a second exposed annular end bearing surface facing the magnetic rotor; that an impeller bush made of hard ceramic is connected to the impeller in a rotationally fixed manner and has an exposed first axial bearing surface facing the first end bearing surface; and that a magnet rotor made of hard ceramic is connected in a rotationally fixed manner to the magnet rotor and has an exposed second axial bearing surface facing the second end bearing surface.
  • the impeller bush is potted with the impeller.
  • the invention also proposes that the magnet rotor bushing be encapsulated with the magnet rotor.
  • the invention also provides that silicon carbide is at least partially provided as the hard ceramic.
  • the invention is based on the surprising finding that it is possible to significantly improve the corrosion resistance of magnetic pumps of the generic type with a simple structure by producing the pump shaft, the impeller bushing and the magnetic rotor bushing from hard ceramic, preferably from silicon carbide, the construction being carried out in this way is that the plain bearing bushes, also made of silicon carbide, together with the impeller bushing and the magnetic rotor bushing simultaneously fulfill the function of the axial bearing for the pump shaft.
  • the drawing consists of a single figure an embodiment of a magnetic pump according to the invention in axial longitudinal section.
  • the magnetic pump according to the invention in the exemplary embodiment shown there has a drive rotor 12 seated on a motor journal 10 provided with a drive motor (not shown), which carries a drive magnet ring 16 arranged on the outer circumference of a containment shell 14, made of plastic material.
  • a magnet rotor 18 is rotatably mounted in the interior of the can 14, the magnet rotor ring 20 of the magnet rotor being magnetically coupled to the drive ring 16 of the drive rotor 12 via the wall of the can.
  • a magnetic rotor sleeve 22 made of silicon carbide is integrated in a rotationally fixed manner into the plastic mass of the magnetic rotor 18, which is made entirely of corrosion-resistant plastic material, and has a free circular axial bearing surface 24 lying in the end face of the magnetic rotor 18 pointing to the left in the drawing.
  • the magnetic rotor bushing 22 is positively connected to a pump shaft 26 made of silicon carbide via a polygonal profile, which enables perfect torque transmission.
  • the pump shaft 26 is rotatably mounted in two plain bearing bushes 28, 30 which are arranged in the pump housing in such a way that they each form an annular, exposed end bearing surface 32, 34.
  • an impeller bush 36 With the end of the pump shaft 26 facing away from the magnet rotor 18, an impeller bush 36 is rotationally fixed in a manner suitable for torque transmission via a polygon profile PC 4 connected, which is poured into the plastic mass of an impeller 38.
  • the impeller bushing 36 also consists of silicon carbide and has an annular axial bearing surface 40 which faces the end bearing surface 34 of the plain bearing bushing 28.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Sliding-Contact Bearings (AREA)
  • Valve Device For Special Equipments (AREA)
  • Magnetically Actuated Valves (AREA)
  • Fuel-Injection Apparatus (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)
EP94118999A 1993-12-22 1994-12-01 Pompe à entraínement magnétique Expired - Lifetime EP0664400B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4343854 1993-12-22
DE4343854A DE4343854C2 (de) 1993-12-22 1993-12-22 Magnetpumpe
US08/488,910 US5580216A (en) 1993-12-22 1995-06-09 Magnetic pump

Publications (2)

Publication Number Publication Date
EP0664400A1 true EP0664400A1 (fr) 1995-07-26
EP0664400B1 EP0664400B1 (fr) 1999-03-17

Family

ID=25932353

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94118999A Expired - Lifetime EP0664400B1 (fr) 1993-12-22 1994-12-01 Pompe à entraínement magnétique

Country Status (6)

Country Link
US (1) US5580216A (fr)
EP (1) EP0664400B1 (fr)
AT (1) ATE177821T1 (fr)
DE (2) DE4343854C2 (fr)
DK (1) DK0664400T3 (fr)
ES (1) ES2129566T3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2909169A1 (fr) * 2006-11-29 2008-05-30 Billanco Dispositif et procede de mesure de la position d'une piece mobile.

Families Citing this family (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5763973A (en) * 1996-10-30 1998-06-09 Imo Industries, Inc. Composite barrier can for a magnetic coupling
DE29716110U1 (de) * 1997-09-08 1999-01-14 Speck Pumpenfabrik Walter Spec Magnetkupplungspumpe
WO2000006899A1 (fr) * 1998-07-31 2000-02-10 Standex International Corporation Pompe a couplage magnetique
US6210133B1 (en) 1998-09-30 2001-04-03 A-Med Systems, Inc. Blood pump with sterile motor housing
US6152704A (en) * 1998-09-30 2000-11-28 A-Med Systems, Inc. Blood pump with turbine drive
DE19853563A1 (de) * 1998-11-20 2000-05-31 Bayer Ag Korrosionsschutzhülse für Magnetrotoren
US6200086B1 (en) 1999-08-04 2001-03-13 Sundyne Corporation Thermal barrier for use in a mechanical seal assembly
US6261056B1 (en) 1999-09-23 2001-07-17 Alliedsignal Inc. Ceramic turbine nozzle including a radially splined mounting surface
ES2190845B1 (es) * 2000-05-30 2005-02-01 Antonio Herrero Gaspar Bomba de trasiego.
US6309188B1 (en) * 2000-06-07 2001-10-30 Michael Danner Magnetic drive centrifugal pump having ceramic bearings, ceramic thrust washers, and a water cooling channel
DE10151651A1 (de) * 2001-10-19 2003-05-08 Pierburg Gmbh Naßläuferpumpe
DE10240800B4 (de) * 2002-08-30 2005-03-24 Munsch Chemie-Pumpen Gmbh Pumpe für chemisch aggressive Fördermedien
TWI264989B (en) * 2005-02-25 2006-10-21 Delta Electronics Inc Liquid-cooling type heat-dissipation module
US8646382B2 (en) 2009-05-05 2014-02-11 Pearl City Manufacturing, Inc. Convection recirculating fryer for cooking foods
JP2011032923A (ja) * 2009-07-31 2011-02-17 Yamada Seisakusho Co Ltd ウォータポンプ
KR101134968B1 (ko) * 2009-11-19 2012-04-09 현대자동차주식회사 전기식 워터 펌프
KR101072328B1 (ko) * 2009-11-19 2011-10-11 현대자동차주식회사 전기식 워터 펌프
KR101134970B1 (ko) * 2009-11-19 2012-04-09 현대자동차주식회사 전기식 워터 펌프
KR101072327B1 (ko) * 2009-11-19 2011-10-11 현대자동차주식회사 전기식 워터 펌프
KR101134969B1 (ko) * 2009-11-19 2012-04-09 현대자동차주식회사 전기식 워터 펌프의 고정자 제작 방법
US8985969B2 (en) * 2011-02-10 2015-03-24 Mitsubishi Heavy Industries, Ltd. Pump configuration
PL2511532T3 (pl) * 2011-04-15 2015-12-31 Wilo Salmson France Rotor z magnesem i pompa cyrkulacyjna hydrauliczna
DE102013208476A1 (de) * 2013-05-08 2014-11-13 Ksb Aktiengesellschaft Pumpenanordnung
DE102013208460A1 (de) * 2013-05-08 2014-11-13 Ksb Aktiengesellschaft Pumpenanordnung mit einer Gleitlageranordnung
DE102013008795B3 (de) * 2013-05-24 2014-08-21 Ksb Aktiengesellschaft Pumpenanordnung
CN103603808A (zh) * 2013-11-25 2014-02-26 丹东克隆先锋泵业有限公司 磁力驱动液下泵
CN103775374A (zh) * 2014-02-19 2014-05-07 安徽卧龙泵阀有限责任公司 可空运转非金属磁力驱动泵
US9771938B2 (en) 2014-03-11 2017-09-26 Peopleflo Manufacturing, Inc. Rotary device having a radial magnetic coupling
US9920764B2 (en) 2015-09-30 2018-03-20 Peopleflo Manufacturing, Inc. Pump devices
DE102016200628A1 (de) * 2016-01-19 2017-07-20 Robert Bosch Gmbh Welle-Nabe-Verbindung
CN107882743A (zh) * 2017-11-03 2018-04-06 安徽南方化工泵业有限公司 一种带有多道密封隔离套的金属磁力泵
CN107859632A (zh) * 2017-11-03 2018-03-30 安徽南方化工泵业有限公司 一种轴向力平衡磁力泵
CN108799187A (zh) * 2018-07-17 2018-11-13 安徽南方化工泵业有限公司 一种磁力泵轴承的间隙补偿结构

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH473986A (de) * 1967-05-17 1969-06-15 L Englesberg Julius Pumpe
EP0118056A2 (fr) * 1983-03-04 1984-09-12 Franz Klaus Union Armaturen Pumpen GmbH & Co. Palier à contact lisse pour le rotor d'une pompe
DE3413930A1 (de) * 1984-04-13 1985-10-31 Friedrichsfeld Gmbh, Steinzeug- Und Kunststoffwerke, 6800 Mannheim Kreiselpumpe
US4850818A (en) * 1986-09-25 1989-07-25 Seikow Chemical Engineering & Machinery, Ltd. Corrosion-resistant magnet pump
EP0563437A2 (fr) * 1992-03-31 1993-10-06 Feodor Burgmann Dichtungswerke GmbH & Co. Montage pour le positionnement concentrique d'une première pièce par rapport à une deuxième pièce, notamment un manchon sur un arbre

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US3969043A (en) * 1974-01-04 1976-07-13 Little Giant Corporation Process cooled submersible pump and motor assembly
GB1496035A (en) * 1974-07-18 1977-12-21 Iwaki Co Ltd Magnetically driven centrifugal pump
DE2534740C3 (de) * 1975-08-04 1983-02-03 Franz 4630 Bochum Klaus Spaltrohrkreiselpumpe
US4637750A (en) * 1984-05-14 1987-01-20 Ward Edward F Evaporative cooler blower rotor-shaft securing hub
DE3816796A1 (de) * 1988-05-17 1989-11-30 Kempten Elektroschmelz Gmbh Laufzeug mit mechanischer kupplung
DE4108257C2 (de) * 1990-03-17 1995-01-26 Allweiler Ag Magnetkupplungspumpe
US5066200A (en) * 1990-05-17 1991-11-19 Ansimag, Inc. Double containment pumping system for pumping hazardous materials

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH473986A (de) * 1967-05-17 1969-06-15 L Englesberg Julius Pumpe
EP0118056A2 (fr) * 1983-03-04 1984-09-12 Franz Klaus Union Armaturen Pumpen GmbH & Co. Palier à contact lisse pour le rotor d'une pompe
DE3413930A1 (de) * 1984-04-13 1985-10-31 Friedrichsfeld Gmbh, Steinzeug- Und Kunststoffwerke, 6800 Mannheim Kreiselpumpe
US4850818A (en) * 1986-09-25 1989-07-25 Seikow Chemical Engineering & Machinery, Ltd. Corrosion-resistant magnet pump
EP0563437A2 (fr) * 1992-03-31 1993-10-06 Feodor Burgmann Dichtungswerke GmbH & Co. Montage pour le positionnement concentrique d'une première pièce par rapport à une deuxième pièce, notamment un manchon sur un arbre

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
G. NAASNER: "kunststoff-magnetkupplungspumpen", CHEMIETECHNIK, vol. 22, no. 6, June 1993 (1993-06-01), HEIDELBERG DE, pages 76 - 81, XP000369905 *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2909169A1 (fr) * 2006-11-29 2008-05-30 Billanco Dispositif et procede de mesure de la position d'une piece mobile.
WO2008081092A2 (fr) * 2006-11-29 2008-07-10 Billanco Dispositif et procede de mesure de la position d'une piece mobile
WO2008081092A3 (fr) * 2006-11-29 2008-09-12 Billanco Dispositif et procede de mesure de la position d'une piece mobile
US8076932B2 (en) 2006-11-29 2011-12-13 Neelogy Device and method for measuring the position of a mobile part

Also Published As

Publication number Publication date
US5580216A (en) 1996-12-03
DE4343854A1 (de) 1995-07-13
ES2129566T3 (es) 1999-06-16
DE59407964D1 (de) 1999-04-22
ATE177821T1 (de) 1999-04-15
DK0664400T3 (da) 1999-10-11
DE4343854C2 (de) 1996-01-18
EP0664400B1 (fr) 1999-03-17

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