JP2020090952A - 蒸気タービン翼及び蒸気タービン - Google Patents
蒸気タービン翼及び蒸気タービン Download PDFInfo
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- JP2020090952A JP2020090952A JP2018230202A JP2018230202A JP2020090952A JP 2020090952 A JP2020090952 A JP 2020090952A JP 2018230202 A JP2018230202 A JP 2018230202A JP 2018230202 A JP2018230202 A JP 2018230202A JP 2020090952 A JP2020090952 A JP 2020090952A
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- Prior art keywords
- blade
- stage
- steam turbine
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- steam
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- 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
-
- 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
- F01D1/00—Non-positive-displacement machines or engines, e.g. steam turbines
- F01D1/02—Non-positive-displacement machines or engines, e.g. steam turbines with stationary working-fluid guiding means and bladed or like rotor, e.g. multi-bladed impulse steam turbines
- F01D1/16—Non-positive-displacement machines or engines, e.g. steam turbines with stationary working-fluid guiding means and bladed or like rotor, e.g. multi-bladed impulse steam turbines characterised by having both reaction stages and impulse stages
-
- 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
-
- 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
- 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
- F01D5/147—Construction, i.e. structural features, e.g. of weight-saving hollow 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
- F01D9/00—Stators
- F01D9/02—Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles
-
- 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
- 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
- F05D2240/00—Components
- F05D2240/10—Stators
- F05D2240/12—Fluid guiding means, e.g. vanes
-
- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Architecture (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
Abstract
Description
反動度とは、段50における熱落差に対する段50中の動翼32における熱落差の比である。言い換えると、反動度とは、段50あたりの全エンタルピーの変化量中で、動翼32での静エンタルピーの変化量が占める割合である。若しくは、反動度とは、段50における圧力差に対する段50中の動翼32における圧力差の比である。
以上、本発明の実施形態について図面を参照して詳述したが、各実施形態における各構成及びそれらの組み合わせ等は一例であり、本発明の趣旨から逸脱しない範囲内で、構成の付加、省略、置換、及びその他の変更が可能である。また、本発明は実施形態によって限定されることはなく、特許請求の範囲によってのみ限定される。
10 ケーシング
11 ノズル室
12 蒸気主流路室
13 排気室
20 ロータ
21 ロータ軸
22 軸芯部
23 仕切部
31 動翼列
31a 調速段動翼列
31b 中圧段動翼列
31c 低圧段動翼列
32 動翼
41 静翼列
41a 調速段静翼列
41b 中圧段静翼列
41c 低圧段静翼列
42 静翼
43 外側リング
46 内側リング
61 内側シール
62 外側シール
T11 基端部
T12 中間部
T13 先端部
311 第一段動翼列
312 第二段動翼列
313 第三段動翼列
411 第一段静翼列
412 第二段静翼列
413 第三段静翼列
Claims (4)
- 中反動度の翼形状をなす基端部と、
低反動度の翼形状をなす中間部と、
高反動度の翼形状をなす先端部と、
を有する蒸気タービン翼。 - 最終段動翼として設けられた請求項1に記載の蒸気タービン翼と、
前記蒸気タービン翼の上流側に並んで配置され、前記蒸気タービン翼と共に最終段を構成する最終段静翼と、
前記最終段静翼の上流側に並んで配置される中間段動翼と、
前記中間段動翼の上流側に並んで配置され、前記最終段に対して軸方向の上流側に並んで設けられる中間段を前記中間段動翼と共に構成する中間段静翼と、を備え、
前記蒸気タービン翼は、前記基端部、前記中間部、及び前記先端部の全域で前記中間段動翼よりもピッチ/コード比が小さい翼形状をなしている蒸気タービン。 - 前記蒸気タービン翼は、前記基端部、前記中間部、及び前記先端部の全域で前記中間段動翼よりも転向角が小さい翼形状をなしている請求項2に記載の蒸気タービン。
- 前記最終段静翼は、前記中間段静翼よりもピッチ/コード比が小さい翼形状をなしている請求項2又は請求項3に記載の蒸気タービン。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2018230202A JP7061557B2 (ja) | 2018-12-07 | 2018-12-07 | 蒸気タービン |
EP19213118.3A EP3663514B1 (en) | 2018-12-07 | 2019-12-03 | Steam turbine blade and steam turbine |
US16/702,836 US11015449B2 (en) | 2018-12-07 | 2019-12-04 | Steam turbine blade and steam turbine |
CN201911231872.8A CN111287801B (zh) | 2018-12-07 | 2019-12-04 | 蒸汽轮机 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2018230202A JP7061557B2 (ja) | 2018-12-07 | 2018-12-07 | 蒸気タービン |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2020090952A true JP2020090952A (ja) | 2020-06-11 |
JP7061557B2 JP7061557B2 (ja) | 2022-04-28 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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JP2018230202A Active JP7061557B2 (ja) | 2018-12-07 | 2018-12-07 | 蒸気タービン |
Country Status (4)
Country | Link |
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US (1) | US11015449B2 (ja) |
EP (1) | EP3663514B1 (ja) |
JP (1) | JP7061557B2 (ja) |
CN (1) | CN111287801B (ja) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT202000005146A1 (it) * | 2020-03-11 | 2021-09-11 | Ge Avio Srl | Motore a turbina con profilo aerodinamico avente alta accelerazione e bassa curva di paletta |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2003027901A (ja) * | 2001-07-13 | 2003-01-29 | Mitsubishi Heavy Ind Ltd | 軸流タービン |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5277549A (en) * | 1992-03-16 | 1994-01-11 | Westinghouse Electric Corp. | Controlled reaction L-2R steam turbine blade |
JP3238267B2 (ja) | 1994-01-14 | 2001-12-10 | 三菱重工業株式会社 | 反動型蒸気タービン |
DE19701020A1 (de) * | 1997-01-14 | 1998-07-23 | Siemens Ag | Dampfturbine |
JP2000291403A (ja) * | 1999-04-02 | 2000-10-17 | Toshiba Corp | 蒸気タービン |
JP4484396B2 (ja) * | 2001-05-18 | 2010-06-16 | 株式会社日立製作所 | タービン動翼 |
US7547187B2 (en) | 2005-03-31 | 2009-06-16 | Hitachi, Ltd. | Axial turbine |
JP4869974B2 (ja) | 2005-03-31 | 2012-02-08 | 株式会社日立製作所 | 軸流タービン |
JP2011074804A (ja) | 2009-09-30 | 2011-04-14 | Hitachi Ltd | 蒸気タービンのノズル |
ITMI20101447A1 (it) * | 2010-07-30 | 2012-01-30 | Alstom Technology Ltd | "turbina a vapore a bassa pressione e metodo per il funzionamento della stessa" |
JP6278329B2 (ja) * | 2015-02-23 | 2018-02-14 | 三菱重工コンプレッサ株式会社 | 蒸気タービン |
-
2018
- 2018-12-07 JP JP2018230202A patent/JP7061557B2/ja active Active
-
2019
- 2019-12-03 EP EP19213118.3A patent/EP3663514B1/en active Active
- 2019-12-04 CN CN201911231872.8A patent/CN111287801B/zh active Active
- 2019-12-04 US US16/702,836 patent/US11015449B2/en active Active
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2003027901A (ja) * | 2001-07-13 | 2003-01-29 | Mitsubishi Heavy Ind Ltd | 軸流タービン |
Also Published As
Publication number | Publication date |
---|---|
EP3663514B1 (en) | 2021-09-08 |
EP3663514A1 (en) | 2020-06-10 |
CN111287801B (zh) | 2022-11-15 |
US20200182063A1 (en) | 2020-06-11 |
CN111287801A (zh) | 2020-06-16 |
JP7061557B2 (ja) | 2022-04-28 |
US11015449B2 (en) | 2021-05-25 |
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