EP3430270B1 - Pompe centrifuge avec des moyens d'équilibrage et procédé d'équilibrage des forces axiales de la pompe centrifuge - Google Patents

Pompe centrifuge avec des moyens d'équilibrage et procédé d'équilibrage des forces axiales de la pompe centrifuge Download PDF

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Publication number
EP3430270B1
EP3430270B1 EP17707915.9A EP17707915A EP3430270B1 EP 3430270 B1 EP3430270 B1 EP 3430270B1 EP 17707915 A EP17707915 A EP 17707915A EP 3430270 B1 EP3430270 B1 EP 3430270B1
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EP
European Patent Office
Prior art keywords
balancing
disc
axial
centrifugal pump
accordance
Prior art date
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Active
Application number
EP17707915.9A
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German (de)
English (en)
Other versions
EP3430270A1 (fr
Inventor
Matti Koivikko
Kalle Tiitinen
Hannu HEISKANEN
Teemu GÅSMAN
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.)
Sulzer Management AG
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Sulzer Management AG
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Publication date
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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
    • F04D29/041—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
    • F04D29/041—Axial thrust balancing
    • 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
    • F04D29/0416—Axial thrust balancing balancing pistons
    • 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
    • F04D29/0473—Bearings hydrostatic; hydrodynamic for radial 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
    • F04D29/00—Details, component parts, or accessories
    • F04D29/18—Rotors
    • F04D29/22—Rotors specially for centrifugal pumps
    • F04D29/2261—Rotors specially for centrifugal pumps with special measures
    • F04D29/2266—Rotors specially for centrifugal pumps with special measures for sealing or thrust balance
    • 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
    • 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
    • F05D2250/00—Geometry
    • F05D2250/20—Three-dimensional
    • F05D2250/29—Three-dimensional machined; miscellaneous
    • F05D2250/294—Three-dimensional machined; miscellaneous grooved

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

Claims (10)

  1. Une pompe centrifuge comprenant un boîtier de pompe avec une entrée (12) et une sortie (18), un arbre (14) étanché et monté sur le boîtier de pompe avec des paliers lisses (40), l'arbre (14) étant mobile dans la direction axiale, au moins une roue à aubes (16) montée sur l'arbre (14) pour tourner avec celui-ci, et un moyen (20) pour équilibrer des forces axiales; dans laquelle le moyen d'équilibrage (20) comprend un disque d'équilibrage (22) montée sur l'arbre (14) pour tourner avec celui-ci, et présente une circonférence extérieure, et un contre-élément stationnaire (28) disposé en liaison avec le corps de pompe; dans laquelle le disque d'équilibrage (22) et le contre-élément (28) laissent une cavité d'équilibrage (36) entre eux; dans laquelle le disque d'équilibrage (22) présente une première surface non axiale (50, 50') limitée à la circonférence extérieure et le contre-élément (28) présente une deuxième surface non axiale (52), la première et la deuxième surface non axiale (50, 50'; 52) se faisant face et laissant une fente mince (36') entre elles, dans laquelle au moins l'une des première et deuxième surfaces non axiales (50, 50'; 52) est pourvue d'au moins une rainure annulaire (54, 64, 74, 84', 84", 94'), dans laquelle un étranglement est disposé en aval du disque d'équilibrage (22), caractérisé en ce que le contre-élément (28) est pourvu d'une contre-bague (26) ayant la deuxième surface non axiale (52) et/ou le disque d'équilibrage (22) est pourvu d'une bague annulaire (86) ayant la première surface non axiale (50').
  2. La pompe centrifuge selon la revendication 1, caractérisé en ce qu'au moins l'une des première et seconde surfaces non axiales (50, 50'; 52) est pourvue de bagues circulaires (94) pour former des rainures annulaires (94') entre elles.
  3. La pompe centrifuge selon l'une des revendications précédentes, caractérisé en ce que la rainure annulaire (54, 64, 74, 84', 84", 94') présente une profondeur, la profondeur étant au moins 10 fois celle de la fente mince (36').
  4. La pompe centrifuge selon l'une des revendications précédentes, caractérisé en ce que la rainure annulaire (54, 64, 74, 84', 84", 94') présente une dimension de 1 à 10 millimètres dans une direction perpendiculaire à la première et à la deuxième surface non axiale (50; 52).
  5. La pompe centrifuge selon l'une des revendications précédentes, caractérisé en ce que la rainure annulaire (54, 64, 74, 84', 84", 94') présente une dimension de 1 à 10 millimètres dans une direction parallèle à la première et à la deuxième surface non axiale (50; 52).
  6. La pompe centrifuge selon l'une des revendications précédentes, caractérisé en ce que le contre-élément (28) est la paroi arrière de la pompe centrifuge.
  7. La pompe centrifuge selon l'une des revendications précédentes, caractérisé en ce qu'une rainure dans le disque d'équilibrage (22) est opposée à une rainure dans le contre-élément (28).
  8. La pompe centrifuge selon la revendication 1, caractérisé en ce que l'étranglement est disposé en aval d'une cavité (38) située en aval du disque d'équilibrage (22).
  9. La pompe centrifuge selon la revendication 1, caractérisé en ce que l'étranglement en aval du moyen d'équilibrage (20) est l'un d'un palier lisse, d'une soupape et d'un conduit ayant une section d'écoulement appropriée.
  10. Un procédé d'équilibrage d'une poussée axiale d'une pompe centrifuge selon la revendication 1, le procédé comprenant l'étape de :
    • disposer un étranglement en aval du disque d'équilibrage (22) pour contrôler la quantité de liquide, qui s'écoule par le moyen d'équilibrage (20), et
    • pourvoir le contre-élément (28) d'une contre-bague (26) ayant la deuxième surface non axiale (52), et/ou
    • pourvoir le disque d'équilibrage (22) d'une bague annulaire (86) ayant la première surface non axiale (50').
EP17707915.9A 2016-03-17 2017-03-06 Pompe centrifuge avec des moyens d'équilibrage et procédé d'équilibrage des forces axiales de la pompe centrifuge Active EP3430270B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP16160876 2016-03-17
PCT/EP2017/055118 WO2017157702A1 (fr) 2016-03-17 2017-03-06 Pompe centrifuge comportant des moyens d'équilibrage et procédé d'équilibrage de forces axiales de la pompe centrifuge

Publications (2)

Publication Number Publication Date
EP3430270A1 EP3430270A1 (fr) 2019-01-23
EP3430270B1 true EP3430270B1 (fr) 2019-11-13

Family

ID=55542571

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17707915.9A Active EP3430270B1 (fr) 2016-03-17 2017-03-06 Pompe centrifuge avec des moyens d'équilibrage et procédé d'équilibrage des forces axiales de la pompe centrifuge

Country Status (6)

Country Link
US (1) US20190063450A1 (fr)
EP (1) EP3430270B1 (fr)
CN (1) CN108779782A (fr)
BR (1) BR112018068267A2 (fr)
RU (1) RU2018132444A (fr)
WO (1) WO2017157702A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019206580A1 (fr) 2018-04-25 2019-10-31 Sulzer Management Ag Bague d'équilibrage, dispositif d'équilibrage, pompe centrifuge et procédé d'équilibrage d'une poussée axiale de la pompe centrifuge
CN109058103A (zh) * 2018-09-25 2018-12-21 宁波鲍斯能源装备股份有限公司 喷水式螺杆压缩机
DE102019001120A1 (de) * 2019-02-15 2020-08-20 KSB SE & Co. KGaA Entlastungseinrichtung
CN114508393B (zh) * 2021-12-27 2023-07-18 东方电气集团东方汽轮机有限公司 甩负荷时轴向推力为零的汽缸、一次及二次再热汽轮机

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1499056A (en) * 1922-07-05 1924-06-24 Hollander Aladar Centrifugal pump

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE539225C (de) * 1931-11-26 Georg Weyland Axialschubentlastung mittels stufenfoermiger Entlastungsscheiben
DE470581C (de) * 1924-05-15 1929-01-22 Ernst Holland Vorrichtung zur Axialdruckentlastung
DE867933C (de) * 1941-03-09 1953-03-05 Siemens Ag Pump-Spaltdichtung
DE1082803B (de) * 1957-04-27 1960-06-02 Rudolf Duemmerling Entlastungsscheibenpaar fuer mehrstufige Kreiselpumpen
US6309174B1 (en) * 1997-02-28 2001-10-30 Fluid Equipment Development Company, Llc Thrust bearing for multistage centrifugal pumps
DE10058499A1 (de) * 2000-11-24 2002-05-29 Ksb Ag Gleitlager für eine Kreiselpumpe

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1499056A (en) * 1922-07-05 1924-06-24 Hollander Aladar Centrifugal pump

Also Published As

Publication number Publication date
BR112018068267A2 (pt) 2019-01-15
CN108779782A (zh) 2018-11-09
RU2018132444A3 (fr) 2020-05-19
US20190063450A1 (en) 2019-02-28
RU2018132444A (ru) 2020-04-17
EP3430270A1 (fr) 2019-01-23
WO2017157702A1 (fr) 2017-09-21

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