WO2008094801A3 - Method and device for reducing axial thrust and radial oscillations and rotary machines using same - Google Patents

Method and device for reducing axial thrust and radial oscillations and rotary machines using same Download PDF

Info

Publication number
WO2008094801A3
WO2008094801A3 PCT/US2008/051806 US2008051806W WO2008094801A3 WO 2008094801 A3 WO2008094801 A3 WO 2008094801A3 US 2008051806 W US2008051806 W US 2008051806W WO 2008094801 A3 WO2008094801 A3 WO 2008094801A3
Authority
WO
WIPO (PCT)
Prior art keywords
axial
rotary machines
axial thrust
peripheral
same
Prior art date
Application number
PCT/US2008/051806
Other languages
French (fr)
Other versions
WO2008094801A2 (en
WO2008094801A4 (en
Inventor
Boris Ganelin
Michael W Kenworthy
Original Assignee
Technology Commercialization
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 Technology Commercialization filed Critical Technology Commercialization
Priority to EP08728143A priority Critical patent/EP2115304A2/en
Publication of WO2008094801A2 publication Critical patent/WO2008094801A2/en
Publication of WO2008094801A3 publication Critical patent/WO2008094801A3/en
Publication of WO2008094801A4 publication Critical patent/WO2008094801A4/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D3/00—Machines or engines with axial-thrust balancing effected by working-fluid
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D11/00—Preventing or minimising internal leakage of working-fluid, e.g. between stages
    • F01D11/02—Preventing or minimising internal leakage of working-fluid, e.g. between stages by non-contact sealings, e.g. of labyrinth 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
    • 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
    • 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
    • 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
    • F04D29/05—Shafts or bearings, or assemblies thereof, specially adapted for elastic fluid pumps
    • F04D29/051—Axial thrust balancing
    • F04D29/0513—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
    • F04D29/05—Shafts or bearings, or assemblies thereof, specially adapted for elastic fluid pumps
    • F04D29/056—Bearings
    • 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
    • F05D2240/50—Bearings
    • F05D2240/52—Axial thrust bearings
    • 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
    • F05D2240/50—Bearings
    • F05D2240/53—Hydrodynamic or hydrostatic bearings

Landscapes

  • 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)

Abstract

A method and apparatus to reduce the axial thrust in rotary machines such as compressors, centrifugal pumps, turbines, etc. includes providing additional peripheral restrictive means (7) attached at the peripheral portion of the disk forming the subdividing means (4) on the side facing the rotating rotor (2). An additional ring element at the periphery of the subdividing means forms additional radial (11) and axial restrictive means (15). Such peripheral restrictive means (7, 11 and 15) function as sealing dams, which combined with the outward flow induced by the rotating impeller, form self-pressurizing hydrodynamic bearings in the axial and radial planes, improving rotordynamic stability. Additionally, a stationary ring element in the center of the cavity forms a seal with the rotor, reducing leakage to suction.
PCT/US2008/051806 2007-01-30 2008-01-23 Method and device for reducing axial thrust and radial oscillations and rotary machines using same WO2008094801A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP08728143A EP2115304A2 (en) 2007-01-30 2008-01-23 Method and device for reducing axial thrust and radial oscillations and rotary machines using same

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US11/668,904 US7731476B2 (en) 2007-01-30 2007-01-30 Method and device for reducing axial thrust and radial oscillations and rotary machines using same
US11/668,904 2007-01-30

Publications (3)

Publication Number Publication Date
WO2008094801A2 WO2008094801A2 (en) 2008-08-07
WO2008094801A3 true WO2008094801A3 (en) 2008-10-09
WO2008094801A4 WO2008094801A4 (en) 2009-01-22

Family

ID=39668210

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2008/051806 WO2008094801A2 (en) 2007-01-30 2008-01-23 Method and device for reducing axial thrust and radial oscillations and rotary machines using same

Country Status (3)

Country Link
US (1) US7731476B2 (en)
EP (1) EP2115304A2 (en)
WO (1) WO2008094801A2 (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NO330109B1 (en) * 2008-02-07 2011-02-21 Statoilhydro Asa Rotor storage system in rotary machines
WO2013132055A1 (en) * 2012-03-08 2013-09-12 Siemens Aktiengesellschaft Radial turbomachine having a swirl-reducing element
US9200528B2 (en) 2012-09-11 2015-12-01 General Electric Company Swirl interruption seal teeth for seal assembly
MX2018010839A (en) * 2016-03-08 2019-02-07 Fluid Handling Llc Center bushing to balance axial forces in multi-stage pumps.
RU173697U1 (en) * 2016-12-13 2017-09-06 Юрий Борисович Назаренко GAS-TURBINE ENGINE ROTOR SUPPORT
DE102016225018A1 (en) * 2016-12-14 2018-06-14 KSB SE & Co. KGaA Centrifugal pump with radial impeller
US10746196B2 (en) * 2017-04-09 2020-08-18 Technology Commercialization Corp. Methods and devices for reducing circumferential pressure imbalances in an impeller side cavity of rotary machines
US10513928B2 (en) * 2017-08-31 2019-12-24 Flowserve Management Company Axial thrust balancing device
JP6783257B2 (en) * 2018-01-31 2020-11-11 三菱重工業株式会社 Axial rotating machine
JP7168441B2 (en) * 2018-12-25 2022-11-09 三菱重工業株式会社 centrifugal rotating machine
DE102019200330A1 (en) * 2019-01-14 2020-07-16 Robert Bosch Gmbh Rotor bearing system for a turbo machine
CN111720356A (en) * 2020-06-28 2020-09-29 辽宁福鞍燃气轮机有限公司 Axial thrust balancing method of semi-open type centrifugal compressor
CN114934821B (en) * 2022-06-29 2023-10-03 华能鹤岗发电有限公司 High-safety low-heat-consumption steam turbine

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4402515A (en) * 1982-03-17 1983-09-06 General Motors Corp. Labyrinth seal with contamination trap
US5248239A (en) * 1992-03-19 1993-09-28 Acd, Inc. Thrust control system for fluid handling rotary apparatus
US5492310A (en) * 1993-09-24 1996-02-20 Boge Gmbh Hydraulically damping elastic bearing
US5704717A (en) * 1996-09-17 1998-01-06 Franklin Electric Co., Inc. Bearing support for rotary machine

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3663117A (en) * 1970-01-21 1972-05-16 Cornell Mfg Co Aeration pump
US4243274A (en) * 1978-08-28 1981-01-06 Jerome Greene Hydrodynamic bearing with radial, thrust and moment load capacity
US5106262A (en) * 1986-11-13 1992-04-21 Oklejas Robert A Idler disk
DE4435192C1 (en) * 1994-09-30 1996-02-29 Klein Schanzlin & Becker Ag Centrifugal pump impeller for contaminated liquids
US6129507A (en) * 1999-04-30 2000-10-10 Technology Commercialization Corporation Method and device for reducing axial thrust in rotary machines and a centrifugal pump using same

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4402515A (en) * 1982-03-17 1983-09-06 General Motors Corp. Labyrinth seal with contamination trap
US5248239A (en) * 1992-03-19 1993-09-28 Acd, Inc. Thrust control system for fluid handling rotary apparatus
US5492310A (en) * 1993-09-24 1996-02-20 Boge Gmbh Hydraulically damping elastic bearing
US5704717A (en) * 1996-09-17 1998-01-06 Franklin Electric Co., Inc. Bearing support for rotary machine

Also Published As

Publication number Publication date
EP2115304A2 (en) 2009-11-11
WO2008094801A2 (en) 2008-08-07
US20080181762A1 (en) 2008-07-31
US7731476B2 (en) 2010-06-08
WO2008094801A4 (en) 2009-01-22

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