WO2009057532A1 - 静翼及び蒸気タービン - Google Patents

静翼及び蒸気タービン Download PDF

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Publication number
WO2009057532A1
WO2009057532A1 PCT/JP2008/069373 JP2008069373W WO2009057532A1 WO 2009057532 A1 WO2009057532 A1 WO 2009057532A1 JP 2008069373 W JP2008069373 W JP 2008069373W WO 2009057532 A1 WO2009057532 A1 WO 2009057532A1
Authority
WO
WIPO (PCT)
Prior art keywords
stationary blade
cavity
side member
backside
belly side
Prior art date
Application number
PCT/JP2008/069373
Other languages
English (en)
French (fr)
Inventor
Hiroyuki Yamashita
Yasutomo Kaneko
Hiroharu Ooyama
Original Assignee
Mitsubishi Heavy Industries, Ltd.
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
Priority claimed from JP2007282812A external-priority patent/JP4939368B2/ja
Application filed by Mitsubishi Heavy Industries, Ltd. filed Critical Mitsubishi Heavy Industries, Ltd.
Priority to US12/666,022 priority Critical patent/US8851844B2/en
Publication of WO2009057532A1 publication Critical patent/WO2009057532A1/ja

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
    • F01D9/00—Stators
    • F01D9/02—Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles
    • F01D9/04—Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles forming ring or sector
    • F01D9/041—Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles forming ring or sector using blades
    • 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
    • F01D5/16—Form or construction for counteracting blade vibration
    • 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
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S416/00—Fluid reaction surfaces, i.e. impellers
    • Y10S416/50—Vibration damping features

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)

Abstract

　簡素な構成で自励振動を抑制可能な静翼及び蒸気タービンを提供する。静翼（２０）には、翼幅方向に延びる空洞（４０）が内部に形成されており、かつ空洞（４０）と外部とを連通させるスリット（２８ａ，２８ｃ）が形成されている。空洞（４０）より腹側の部分である腹側部材（２５）と、空洞（４０）より背側の部分である背側部材（２７）との間に、腹側部材（２５）と背側部材（２７）のうち少なくとも一方と摺接する波形板バネ（４４）が設けられている。静翼（２０）が弾性変形すると、波形板バネ（４４）は、腹側部材（２５）と背側部材（２７）のうち少なくとも一方との間に摩擦を生じさせる。この摩擦により、腹側部材（２５）と背側部材（２７）の間の相対的な位置変動が減衰される。これにより、静翼（２０）に生じる自励振動を抑制することができる。
PCT/JP2008/069373 2007-10-31 2008-10-24 静翼及び蒸気タービン WO2009057532A1 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US12/666,022 US8851844B2 (en) 2007-10-31 2008-10-24 Stationary blade and steam turbine

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007282812A JP4939368B2 (ja) 2006-10-31 2007-10-31 静翼及び蒸気タービン
JP2007-282812 2007-10-31

Publications (1)

Publication Number Publication Date
WO2009057532A1 true WO2009057532A1 (ja) 2009-05-07

Family

ID=40590923

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/069373 WO2009057532A1 (ja) 2007-10-31 2008-10-24 静翼及び蒸気タービン

Country Status (2)

Country Link
US (1) US8851844B2 (ja)
WO (1) WO2009057532A1 (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2305954A3 (en) * 2009-09-21 2014-06-18 Pratt & Whitney Rocketdyne Inc. Internally damped blade

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5660883B2 (ja) 2010-12-22 2015-01-28 三菱日立パワーシステムズ株式会社 蒸気タービンの静翼、蒸気タービン
US9181806B2 (en) * 2012-04-24 2015-11-10 United Technologies Corporation Airfoil with powder damper
JP5919123B2 (ja) * 2012-07-30 2016-05-18 三菱日立パワーシステムズ株式会社 蒸気タービン、および蒸気タービンの静翼
EP2971554B1 (en) * 2013-03-14 2018-05-09 United Technologies Corporation Fan blade damping device
EP2971537B1 (en) * 2013-03-15 2019-05-22 United Technologies Corporation Vibration damping for structural guide vanes
US9903434B2 (en) * 2013-08-21 2018-02-27 General Electric Company Components having vibration dampers enclosed therein and methods of forming such components
JP6230383B2 (ja) * 2013-11-21 2017-11-15 三菱日立パワーシステムズ株式会社 蒸気タービンの静翼と蒸気タービン
US9920650B2 (en) 2014-02-14 2018-03-20 United Technologies Corporation Retention of damping media
US10641113B2 (en) * 2015-04-08 2020-05-05 United Technologies Corporation Airfoils
JP6797701B2 (ja) 2017-01-20 2020-12-09 三菱パワー株式会社 蒸気タービン
US10544682B2 (en) 2017-08-14 2020-01-28 United Technologies Corporation Expansion seals for airfoils
US10557572B2 (en) * 2017-09-29 2020-02-11 United Technologies Corporation Conduit with damping fingers
US10808572B2 (en) * 2018-04-02 2020-10-20 General Electric Company Cooling structure for a turbomachinery component
US11280201B2 (en) * 2019-10-14 2022-03-22 Raytheon Technologies Corporation Baffle with tail
US11339666B2 (en) * 2020-04-17 2022-05-24 General Electric Company Airfoil with cavity damping
US11365636B2 (en) 2020-05-25 2022-06-21 General Electric Company Fan blade with intrinsic damping characteristics
JP7162641B2 (ja) 2020-07-20 2022-10-28 三菱重工業株式会社 蒸気タービン静翼
WO2022064674A1 (ja) * 2020-09-28 2022-03-31 三菱パワー株式会社 蒸気タービン
US11879351B2 (en) * 2021-12-13 2024-01-23 Rtx Corporation Composite component with damper for gas turbine engine

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2801073A (en) * 1952-06-30 1957-07-30 United Aircraft Corp Hollow sheet metal blade or vane construction
US2873944A (en) * 1952-09-10 1959-02-17 Gen Motors Corp Turbine blade cooling
US3475107A (en) * 1966-12-01 1969-10-28 Gen Electric Cooled turbine nozzle for high temperature turbine
JPS6432004A (en) * 1987-07-28 1989-02-02 Toshiba Corp Drain removal type stator blade
JPH0347403A (ja) * 1989-07-13 1991-02-28 Toshiba Corp 蒸気タービンの水滴除去装置
JPH0514503U (ja) * 1991-08-07 1993-02-26 三菱重工業株式会社 蒸気タービンの静翼
JPH09209708A (ja) * 1996-02-09 1997-08-12 Mitsubishi Heavy Ind Ltd 回転流体機械の静翼
JPH11336503A (ja) * 1998-05-27 1999-12-07 Mitsubishi Heavy Ind Ltd 蒸気タービン静翼
JP2005315076A (ja) * 2004-04-26 2005-11-10 Ishikawajima Harima Heavy Ind Co Ltd タービンノズル及びタービンノズルセグメント

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2920866A (en) * 1954-12-20 1960-01-12 A V Roe Canada Ltd Hollow air cooled sheet metal turbine blade
GB1130285A (en) * 1967-05-05 1968-10-16 Rolls Royce Method of making an aerofoil shaped blade for a fluid flow machine
US4897021A (en) * 1988-06-02 1990-01-30 United Technologies Corporation Stator vane asssembly for an axial flow rotary machine
US5056738A (en) * 1989-09-07 1991-10-15 General Electric Company Damper assembly for a strut in a jet propulsion engine
JPH04179802A (ja) 1990-11-15 1992-06-26 Toshiba Corp タービン静翼およびタービン動翼
JPH0514503A (ja) 1991-06-27 1993-01-22 Toshiba Corp 電話システム
US5284011A (en) * 1992-12-14 1994-02-08 General Electric Company Damped turbine engine frame
US5346362A (en) * 1993-04-26 1994-09-13 United Technologies Corporation Mechanical damper

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2801073A (en) * 1952-06-30 1957-07-30 United Aircraft Corp Hollow sheet metal blade or vane construction
US2873944A (en) * 1952-09-10 1959-02-17 Gen Motors Corp Turbine blade cooling
US3475107A (en) * 1966-12-01 1969-10-28 Gen Electric Cooled turbine nozzle for high temperature turbine
JPS6432004A (en) * 1987-07-28 1989-02-02 Toshiba Corp Drain removal type stator blade
JPH0347403A (ja) * 1989-07-13 1991-02-28 Toshiba Corp 蒸気タービンの水滴除去装置
JPH0514503U (ja) * 1991-08-07 1993-02-26 三菱重工業株式会社 蒸気タービンの静翼
JPH09209708A (ja) * 1996-02-09 1997-08-12 Mitsubishi Heavy Ind Ltd 回転流体機械の静翼
JPH11336503A (ja) * 1998-05-27 1999-12-07 Mitsubishi Heavy Ind Ltd 蒸気タービン静翼
JP2005315076A (ja) * 2004-04-26 2005-11-10 Ishikawajima Harima Heavy Ind Co Ltd タービンノズル及びタービンノズルセグメント

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2305954A3 (en) * 2009-09-21 2014-06-18 Pratt & Whitney Rocketdyne Inc. Internally damped blade

Also Published As

Publication number Publication date
US8851844B2 (en) 2014-10-07
US20100329847A1 (en) 2010-12-30

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