CA2562712C - Etage de pression d'une turbine a vapeur/gaz presentant un anneau de renforcement universel - Google Patents

Etage de pression d'une turbine a vapeur/gaz presentant un anneau de renforcement universel Download PDF

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Publication number
CA2562712C
CA2562712C CA2562712A CA2562712A CA2562712C CA 2562712 C CA2562712 C CA 2562712C CA 2562712 A CA2562712 A CA 2562712A CA 2562712 A CA2562712 A CA 2562712A CA 2562712 C CA2562712 C CA 2562712C
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CA
Canada
Prior art keywords
shroud
steam
openings
outer shroud
rotor
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
CA2562712A
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English (en)
Other versions
CA2562712A1 (fr
Inventor
Vladlen Zitin
Oleg Naljotov
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Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of CA2562712A1 publication Critical patent/CA2562712A1/fr
Application granted granted Critical
Publication of CA2562712C publication Critical patent/CA2562712C/fr
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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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
    • F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
    • F01D5/12—Blades
    • F01D5/14—Form or construction
    • F01D5/141—Shape, i.e. outer, aerodynamic form
    • F01D5/142—Shape, i.e. outer, aerodynamic form of the blades of successive rotor or stator blade-rows
    • F01D5/143—Contour of the outer or inner working fluid flow path wall, i.e. shroud or hub contour
    • 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
    • F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
    • F01D25/007—Preventing corrosion
    • 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
    • F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
    • F01D5/12—Blades
    • F01D5/22—Blade-to-blade connections, e.g. for damping vibrations
    • F01D5/225—Blade-to-blade connections, e.g. for damping vibrations by shrouding
    • 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
    • F05D2220/00—Application
    • F05D2220/30—Application in turbines
    • F05D2220/32—Application in turbines in gas 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
    • F05D2260/00—Function
    • F05D2260/60—Fluid transfer
    • F05D2260/602—Drainage
    • 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
    • F05D2260/00—Function
    • F05D2260/95—Preventing corrosion
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T50/00—Aeronautics or air transport
    • Y02T50/60—Efficient propulsion technologies, e.g. for aircraft

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)
  • Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)

Abstract

Selon l'invention, une conception imparfaite d'un anneau de renforcement (8) ou de parties identiques des aubes (7) de turbines à vapeur/gaz, y compris les joints d'étanchéité contigus, sont à l'origine d'une baisse de la fiabilité et de l'efficacité. Ces lacunes sont éliminées grâce à des trous latéraux forés dans l'anneau de renforcement et les aubes (7). Le transfert de vapeur par les trous (12) de l'anneau de renforcement donne lieu à l'allègement du gradient de pression à la surface de l'anneau de renforcement (8) et empêche la formation d'oxyde métallique, de sel et d'autres dépôts sur les surfaces intérieures de l'anneau de renforcement (8). La quantité et le diamètre des trous (12), ainsi que leur dépôt correspondant et les valeurs de jeux radiaux dans les joints d'étanchéité bombés (4, 5) de l'anneau régulent leur efficacité.
CA2562712A 2003-04-18 2003-04-18 Etage de pression d'une turbine a vapeur/gaz presentant un anneau de renforcement universel Expired - Fee Related CA2562712C (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US2003/012102 WO2004099572A1 (fr) 2003-04-18 2003-04-18 Etage de pression d'une turbine a vapeur/gaz presentant un anneau de renforcement universel

Publications (2)

Publication Number Publication Date
CA2562712A1 CA2562712A1 (fr) 2004-11-18
CA2562712C true CA2562712C (fr) 2011-05-31

Family

ID=33434336

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2562712A Expired - Fee Related CA2562712C (fr) 2003-04-18 2003-04-18 Etage de pression d'une turbine a vapeur/gaz presentant un anneau de renforcement universel

Country Status (10)

Country Link
EP (1) EP1623097A4 (fr)
JP (1) JP4195882B2 (fr)
CN (1) CN100386502C (fr)
AU (1) AU2003228590B2 (fr)
BR (1) BR0318261A (fr)
CA (1) CA2562712C (fr)
EA (1) EA008156B1 (fr)
HK (1) HK1092853A1 (fr)
UA (1) UA81314C2 (fr)
WO (1) WO2004099572A1 (fr)

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE893649C (de) * 1940-05-04 1953-10-19 Siemens Ag Einrichtung an Dampf- oder Gasturbinenbeschaufelungen
FR2166494A5 (fr) * 1971-12-27 1973-08-17 Onera (Off Nat Aerospatiale)
SU663861A1 (ru) * 1977-08-23 1979-05-25 Ленинградский Ордена Ленина Политехнический Институт Им.М.И.Калинина Рабочее колесо осевой турбины
JPS55146201A (en) * 1979-05-04 1980-11-14 Hitachi Ltd Moving blade for turbine
US4534701A (en) * 1982-06-29 1985-08-13 Gerhard Wisser Rotor or guide wheel of a turbine engine with shroud ring
DE3505491A1 (de) * 1985-02-16 1986-08-21 MTU Motoren- und Turbinen-Union München GmbH, 8000 München Dichtung fuer eine stroemungsmaschine
DE4015206C1 (fr) * 1990-05-11 1991-10-17 Mtu Muenchen Gmbh
FR2661944B1 (fr) * 1990-05-14 1994-06-10 Alsthom Gec Etage de turbomachine avec pertes secondaires reduites.
FR2666846B1 (fr) * 1990-09-13 1992-10-16 Alsthom Gec Grille d'aubes pour turbomachine munie de fentes d'aspiration dans le plafond et/ou dans le plancher et turbomachine comportant ces grilles.
US5224713A (en) * 1991-08-28 1993-07-06 General Electric Company Labyrinth seal with recirculating means for reducing or eliminating parasitic leakage through the seal
GB9607578D0 (en) * 1996-04-12 1996-06-12 Rolls Royce Plc Turbine rotor blades
EP0844369B1 (fr) * 1996-11-23 2002-01-30 ROLLS-ROYCE plc Assemblage d'un rotor à aubes et de son carter
EP1013884B1 (fr) * 1998-12-24 2005-07-27 ALSTOM Technology Ltd Aube de turbine avec plateforme refroidie

Also Published As

Publication number Publication date
EP1623097A1 (fr) 2006-02-08
BR0318261A (pt) 2006-05-23
EP1623097A4 (fr) 2012-06-27
HK1092853A1 (en) 2007-02-16
CN100386502C (zh) 2008-05-07
CN1788142A (zh) 2006-06-14
AU2003228590A1 (en) 2004-11-26
WO2004099572A1 (fr) 2004-11-18
JP2006523792A (ja) 2006-10-19
EA200501572A1 (ru) 2006-08-25
CA2562712A1 (fr) 2004-11-18
UA81314C2 (en) 2007-12-25
AU2003228590B2 (en) 2010-01-07
JP4195882B2 (ja) 2008-12-17
EA008156B1 (ru) 2007-04-27

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Effective date: 20130418