CN101096915B - 有助于在涡轮机中进行密封的方法和设备 - Google Patents

有助于在涡轮机中进行密封的方法和设备 Download PDF

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Publication number
CN101096915B
CN101096915B CN2007101262798A CN200710126279A CN101096915B CN 101096915 B CN101096915 B CN 101096915B CN 2007101262798 A CN2007101262798 A CN 2007101262798A CN 200710126279 A CN200710126279 A CN 200710126279A CN 101096915 B CN101096915 B CN 101096915B
Authority
CN
China
Prior art keywords
biasing mechanism
notch
seal ring
seal
ring
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.)
Expired - Fee Related
Application number
CN2007101262798A
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English (en)
Chinese (zh)
Other versions
CN101096915A (zh
Inventor
K·N·劳雷尔
K·J·巴布
B·A·库图尔
J·P·莫茨海姆
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.)
General Electric Co
Original Assignee
General Electric Co
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 General Electric Co filed Critical General Electric Co
Publication of CN101096915A publication Critical patent/CN101096915A/zh
Application granted granted Critical
Publication of CN101096915B publication Critical patent/CN101096915B/zh
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • 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
    • F01D11/025—Seal clearance control; Floating assembly; Adaptation means to differential thermal dilatations
    • 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
    • F01D11/08—Preventing or minimising internal leakage of working-fluid, e.g. between stages for sealing space between rotor blade tips and stator
    • 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
    • F01D11/08—Preventing or minimising internal leakage of working-fluid, e.g. between stages for sealing space between rotor blade tips and stator
    • F01D11/12—Preventing or minimising internal leakage of working-fluid, e.g. between stages for sealing space between rotor blade tips and stator using a rubstrip, e.g. erodible. deformable or resiliently-biased part
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
    • F02C7/00—Features, components parts, details or accessories, not provided for in, or of interest apart form groups F02C1/00 - F02C6/00; Air intakes for jet-propulsion plants
    • F02C7/28—Arrangement of seals
    • 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
    • F05D2220/00—Application
    • F05D2220/30—Application in turbines
    • F05D2220/31—Application in turbines in steam turbines
    • 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
    • F05D2250/10—Two-dimensional
    • F05D2250/18—Two-dimensional patterned
    • F05D2250/182—Two-dimensional patterned crenellated, notched

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)
  • Gasket Seals (AREA)
CN2007101262798A 2006-06-30 2007-06-29 有助于在涡轮机中进行密封的方法和设备 Expired - Fee Related CN101096915B (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US11/427,866 US7540708B2 (en) 2006-06-30 2006-06-30 Methods and apparatus to facilitate sealing in a turbine
US11/427866 2006-06-30

Publications (2)

Publication Number Publication Date
CN101096915A CN101096915A (zh) 2008-01-02
CN101096915B true CN101096915B (zh) 2012-04-04

Family

ID=38777205

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2007101262798A Expired - Fee Related CN101096915B (zh) 2006-06-30 2007-06-29 有助于在涡轮机中进行密封的方法和设备

Country Status (5)

Country Link
US (1) US7540708B2 (https=)
JP (1) JP5112759B2 (https=)
KR (1) KR20080003266A (https=)
CN (1) CN101096915B (https=)
DE (1) DE102007030135A1 (https=)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8083236B2 (en) * 2009-09-22 2011-12-27 Hamilton Sundstrand Corporation Staggered seal assembly
EP2339122A1 (en) * 2009-12-23 2011-06-29 Siemens Aktiengesellschaft Turbine with adjustable volume inlet chamber
CN101866743A (zh) * 2010-05-31 2010-10-20 佛山市中研非晶科技股份有限公司 一种非晶c型磁芯的拼接方法
US8342009B2 (en) 2011-05-10 2013-01-01 General Electric Company Method for determining steampath efficiency of a steam turbine section with internal leakage
US9702261B2 (en) 2013-12-06 2017-07-11 General Electric Company Steam turbine and methods of assembling the same

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2600991A (en) * 1949-06-14 1952-06-17 Gen Electric Labyrinth seal arrangement
US3594010A (en) * 1968-07-19 1971-07-20 English Electric Co Ltd Shaft seal for turbines
US5603510A (en) * 1991-06-13 1997-02-18 Sanders; William P. Variable clearance seal assembly
US6651986B2 (en) * 2002-01-29 2003-11-25 General Electric Company Retractable packing ring lower half segment retaining key and method for retaining retractable packing ring lower half segment
CN1500187A (zh) * 2001-03-26 2004-05-26 株式会社东芝 带有密封装置的旋转机械

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4436311A (en) * 1982-04-20 1984-03-13 Brandon Ronald E Segmented labyrinth-type shaft sealing system for fluid turbines
US4538790A (en) * 1983-03-24 1985-09-03 Whitey Co. Valve stem packing assembly
US4558874A (en) * 1983-07-05 1985-12-17 Whitey Co. Valve stem packing assembly
JPS62158102U (https=) * 1986-03-31 1987-10-07
US5639095A (en) * 1988-01-04 1997-06-17 Twentieth Technology Low-leakage and low-instability labyrinth seal
US5002288A (en) * 1988-10-13 1991-03-26 General Electric Company Positive variable clearance labyrinth seal
US6311983B1 (en) * 1989-09-26 2001-11-06 The Boeing Company Combination static lift-off face contact seal and floating ring shaft seal
US5037114A (en) * 1990-01-26 1991-08-06 Westinghouse Electric Corp. Labyrinth seal for steam turbines
US5161943A (en) * 1991-03-11 1992-11-10 Dresser-Rand Company, A General Partnership Swirl control labyrinth seal
US6131910A (en) * 1992-11-19 2000-10-17 General Electric Co. Brush seals and combined labyrinth and brush seals for rotary machines
US5395124A (en) * 1993-01-04 1995-03-07 Imo Industries, Inc. Retractible segmented packing ring for fluid turbines having gravity springs to neutralize packing segment weight forces
US5599026A (en) * 1995-09-06 1997-02-04 Innovative Technology, L.L.C. Turbine seal with sealing strip and rubbing strip
US5934684A (en) * 1997-05-27 1999-08-10 Brandon; Ronald Earl Retractable segmented packing ring for fluid turbines having gravity springs to neutralize packing segment weight forces
US6007070A (en) * 1997-07-17 1999-12-28 Heathcott; Joe William Pressure actuated packing assembly
JPH11257014A (ja) * 1998-03-06 1999-09-21 Toshiba Corp 軸流タービンの作動流体漏洩防止装置
US6065754A (en) * 1998-04-15 2000-05-23 General Electric Co. Uniform clearance, temperature responsive, variable packing ring
US6220603B1 (en) * 1998-07-13 2001-04-24 Ronald Earl Brandon Non retractable segmented packing ring for fluid turbines having special springs to reduce forces during shaft rubbing
US6250641B1 (en) * 1998-11-25 2001-06-26 General Electric Co. Positive biased packing ring brush seal combination

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2600991A (en) * 1949-06-14 1952-06-17 Gen Electric Labyrinth seal arrangement
US3594010A (en) * 1968-07-19 1971-07-20 English Electric Co Ltd Shaft seal for turbines
US5603510A (en) * 1991-06-13 1997-02-18 Sanders; William P. Variable clearance seal assembly
CN1500187A (zh) * 2001-03-26 2004-05-26 株式会社东芝 带有密封装置的旋转机械
US6651986B2 (en) * 2002-01-29 2003-11-25 General Electric Company Retractable packing ring lower half segment retaining key and method for retaining retractable packing ring lower half segment

Also Published As

Publication number Publication date
US20080003100A1 (en) 2008-01-03
CN101096915A (zh) 2008-01-02
JP2008014310A (ja) 2008-01-24
US7540708B2 (en) 2009-06-02
DE102007030135A1 (de) 2008-01-03
KR20080003266A (ko) 2008-01-07
JP5112759B2 (ja) 2013-01-09

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C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20120404

Termination date: 20130629