EP1813819B1 - Pompe centrifuge - Google Patents

Pompe centrifuge Download PDF

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Publication number
EP1813819B1
EP1813819B1 EP07000756A EP07000756A EP1813819B1 EP 1813819 B1 EP1813819 B1 EP 1813819B1 EP 07000756 A EP07000756 A EP 07000756A EP 07000756 A EP07000756 A EP 07000756A EP 1813819 B1 EP1813819 B1 EP 1813819B1
Authority
EP
European Patent Office
Prior art keywords
impeller
centrifugal pump
shaft
sealing disc
sealing
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.)
Active
Application number
EP07000756A
Other languages
German (de)
English (en)
Other versions
EP1813819A3 (fr
EP1813819A2 (fr
Inventor
Roland Stracke
Helmut Rückwardt
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.)
Wilo SE
Original Assignee
Wilo SE
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 Wilo SE filed Critical Wilo SE
Publication of EP1813819A2 publication Critical patent/EP1813819A2/fr
Publication of EP1813819A3 publication Critical patent/EP1813819A3/fr
Application granted granted Critical
Publication of EP1813819B1 publication Critical patent/EP1813819B1/fr
Active 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
    • F04D29/00—Details, component parts, or accessories
    • F04D29/08—Sealings
    • F04D29/10—Shaft sealings
    • F04D29/12—Shaft sealings using sealing-rings
    • F04D29/126—Shaft sealings using sealing-rings especially adapted for liquid pumps
    • F04D29/128—Shaft sealings using sealing-rings especially adapted for liquid pumps with special means for adducting cooling or sealing 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
    • F04D29/08—Sealings
    • F04D29/10—Shaft sealings
    • F04D29/106—Shaft sealings especially adapted for liquid pumps

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Lubrication Of Internal Combustion Engines (AREA)
  • Reciprocating Pumps (AREA)

Claims (8)

  1. Pompe centrifuge (2) pourvue d' un rotor (4) monté sur une extrémité d'un arbre (5) motorisé, une garniture étanche à anneau glissant (12) entourant l'arbre sur le côté du rotor opposé à l'admission (6) du rotor, et la garniture étanche à anneau glissant (12) étant entourée par un espace d'étanchéité (13), balayé par un courant partiel du liquide refoulé, caractérisée en ce que
    - un disque d'étanchéité rotatif (14) est fixé sur l'arbre (5) dans la direction axiale entre le rotor (4) et la garniture étanche à anneau glissant (12),
    - le disque d'étanchéité (14) provoque une force axiale opposée à la force de traction axiale du rotor (4), et
    - le disque d'étanchéité (14) présente, pour le courant partiel de liquide, au moins un passage (19) raccordé à au moins un canal de passage (17), qui mène à l'admission (6) du rotor.
  2. Pompe centrifuge (2) suivant la revendication 1, caractérisée en ce que le canal de passage (17) est formé par au moins un creux longitudinal, en particulier une gorge longitudinale, dans l'enveloppe de l'arbre (5).
  3. Pompe centrifuge (2) suivant l'une des revendications 1 et 2, caractérisée en ce que le passage (19) est disposé entre l'arbre (5) et l'ouverture centrale (16) du disque d'étanchéité (14).
  4. Pompe centrifuge (2) suivant l'une des revendications précédentes, caractérisée en ce que le courant partiel, s'écoulant au travers de l'espace d'étanchéité (13), est en dérivation du côté refoulement de la pompe.
  5. Pompe centrifuge (2) suivant l'une des revendications précédentes, caractérisée en ce que le côté refoulement de la pompe, en particulier un compartiment de refoulement (10), est étanchéifié en direction de l'espace d'étanchéité par le disque d'étanchéité (14).
  6. Pompe centrifuge (2) suivant la revendication 5, caractérisée en ce que la cloison (21) entre le côté refoulement, en particulier le compartiment de refoulement (10), et l'espace d'étanchéité (13) présente une ouverture (19) en particulier annulaire, qui est fermée, en particulier remplie, par une zone du disque d'étanchéité (14).
  7. Pompe centrifuge suivant l'une des revendications précédentes, caractérisée en ce que le disque d'étanchéité (14) présente, sur le côté opposé au rotor (4), au moins une gorge (18) qui mène du bord extérieur du disque d'étanchéité (14) au passage (19) de ce dernier.
  8. Pompe centrifuge suivant l'une des revendications précédentes, caractérisée en ce que le disque d'étanchéité (14) présente un surface de contact (20), en particulier annulaire, pour la garniture étanche à anneau glissant (12).
EP07000756A 2006-01-31 2007-01-16 Pompe centrifuge Active EP1813819B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102006004266A DE102006004266A1 (de) 2006-01-31 2006-01-31 Kreiselpumpe

Publications (3)

Publication Number Publication Date
EP1813819A2 EP1813819A2 (fr) 2007-08-01
EP1813819A3 EP1813819A3 (fr) 2008-02-27
EP1813819B1 true EP1813819B1 (fr) 2011-04-27

Family

ID=38024250

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07000756A Active EP1813819B1 (fr) 2006-01-31 2007-01-16 Pompe centrifuge

Country Status (3)

Country Link
EP (1) EP1813819B1 (fr)
AT (1) ATE507395T1 (fr)
DE (2) DE102006004266A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113202809A (zh) * 2021-05-22 2021-08-03 中国计量大学 一种不会对外泄漏泵内输送液体分子的全密封型水泵的结构
CN113236599A (zh) * 2021-05-22 2021-08-10 中国计量大学 不外泄泵内被输送液体分子的且扬程全由电机决定的化工泵结构
CN113357186A (zh) * 2021-05-22 2021-09-07 中国计量大学 一种全密封型水泵的结构

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1120231A (en) * 1964-07-08 1968-07-17 Worthington Simpson Rotary pumps
DE2914652A1 (de) * 1979-04-11 1980-10-30 Kloeckner Humboldt Deutz Ag Verstellbares mikrofilmkartenlesegeraet
DE3432662C2 (de) * 1984-09-05 1986-10-16 Tanabe Machinery Co., Ltd., Tokio/Tokyo Vorrichtung zum Erfassen eines Sollmaßes eines Schachtelzuschnittes für eine Schachtelherstellungsmaschine
DE3438662C2 (de) * 1984-10-22 1997-01-30 Sihi Gmbh & Co Kg Kreiselpumpe für heiße Medien
DE8601166U1 (de) * 1986-01-18 1986-02-27 Sihi Gmbh & Co Kg, 2210 Itzehoe Pumpe zur Förderung von Heißwasser
DE8627766U1 (fr) * 1986-10-17 1988-02-11 Sihi Gmbh & Co Kg
DE3825799A1 (de) * 1988-07-29 1990-02-01 Messer Griesheim Gmbh Kreiselpumpe
DE3914652A1 (de) * 1989-05-03 1990-11-08 Sihi Gmbh & Co Kg Kreiselpumpe
CA2015777C (fr) * 1990-04-30 1993-10-12 Lynn P. Tessier Pompe centrifuge
GB2290113B (en) * 1994-05-31 1998-07-15 Ingersoll Dresser Pump Co Centrifugal pump

Also Published As

Publication number Publication date
DE102006004266A1 (de) 2007-08-02
EP1813819A3 (fr) 2008-02-27
DE502007007033D1 (de) 2011-06-09
EP1813819A2 (fr) 2007-08-01
ATE507395T1 (de) 2011-05-15

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