JP2010203302A - 軸流タービン - Google Patents
軸流タービン Download PDFInfo
- Publication number
- JP2010203302A JP2010203302A JP2009048720A JP2009048720A JP2010203302A JP 2010203302 A JP2010203302 A JP 2010203302A JP 2009048720 A JP2009048720 A JP 2009048720A JP 2009048720 A JP2009048720 A JP 2009048720A JP 2010203302 A JP2010203302 A JP 2010203302A
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- JP
- Japan
- Prior art keywords
- turbine
- outer peripheral
- wall surface
- side wall
- chamber
- 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.)
- Granted
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- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 48
- 239000012530 fluid Substances 0.000 claims abstract description 44
- 230000002093 peripheral effect Effects 0.000 claims description 96
- 238000000605 extraction Methods 0.000 claims description 48
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 230000007423 decrease Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 239000007791 liquid phase Substances 0.000 description 4
- 230000003628 erosive effect Effects 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 230000004323 axial length Effects 0.000 description 1
- 238000012888 cubic function Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 230000005514 two-phase flow Effects 0.000 description 1
Images
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
- F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
- F01D25/32—Collecting of condensation water; Drainage ; Removing solid particles
-
- 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
- F01D5/141—Shape, i.e. outer, aerodynamic form
- F01D5/145—Means for influencing boundary layers or secondary circulations
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
Abstract
【解決手段】タービン翼室12の外側に設けた抽気室15と、作動流体流れ方向に複数連設された外周側ダイアフラム8間に形成され、タービン翼室12と抽気室15とを連通する抽気口16とを有する軸流タービンであって、抽気室15の下流側壁面を構成する外周側ダイアフラム8は、抽気口上流側動翼2の外周端の下流側先端よりもタービン半径方向内周側に突出し、抽気口16の下流側壁面を構成する突端部21を有し、該突端部21は、作動流体の一部を抽気室15に導く外周側ダイアフラム上流側壁面18と、作動流体の残りを抽気口下流側の動翼11に導く外周側ダイアフラム内周側壁面19とを構成する。
【選択図】 図3
Description
3,10 静翼
5,8 外周側ダイアフラム
6,9 内周側ダイアフラム
12 タービン翼室
15 抽気室
16 抽気口
18 外周側ダイアフラムの上流側壁面
19 外周側ダイアフラムの内周側壁面
21 突端部
51 作動流体流れ方向
Claims (4)
- 作動流体が流れるタービン翼室と、
前記作動流体の流れ方向に複数個連設され前記タービン翼室の外周側壁面を構成する外周側ダイアフラムと、
該ダイアフラムに設けられた静翼とロータに固定された動翼とからなるタービン段落と、
前記タービン翼室の外側に設けられた抽気室であって、前記作動流体流れ方向に複数個連設された外周側ダイアフラム間に形成された抽気口を介して前記タービン翼室と連通し、前記外周側ダイアフラムにより下流側壁面が構成された抽気室とを有する軸流タービンであって、
前記抽気室の下流側壁面を構成する前記外周側ダイアフラムは、前記抽気口上流側に隣設された動翼の外周端の下流側先端よりもタービン半径方向内周側に突出し、前記抽気口の下流側壁面を構成する突端部を有し、
該突端部の外周側壁面は、前記作動流体の一部を前記抽気室に導く外周側ダイアフラム上流側壁面を構成し、前記突端部の内周側壁面は、前記作動流体の残りを前記抽気口下流側の動翼に導く外周側ダイアフラム内周側壁面を構成することを特徴とする軸流タービン。 - 請求項1に記載の軸流タービンであって、
前記外周側ダイアフラム上流側壁面は、前記抽気口入口側から抽気室側に向かって広がり角が大きくなるよう形成され、
前記外周側ダイアフラム内周側壁面は、上流側先端の広がり角が、上流側から下流側までの平均広がり角よりも小さく、下流側先端の広がり角が、下流側に隣設された動翼の外周端の入口広がり角と等しいことを特徴とする軸流タービン。 - 請求項1記載の軸流タービンであって、
前記突端部先端の前記抽気口上流側動翼の外周端の下流側先端に対する突出量と、前記抽気口上流側動翼の翼高さとの比が、段落流量と抽気流量との比と同等であることを特徴とする軸流タービン。 - 請求項1記載の軸流タービンであって、
前記作動流体は蒸気であることを特徴とする軸流タービン。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2009048720A JP4848440B2 (ja) | 2009-03-03 | 2009-03-03 | 軸流タービン |
CN2010101155995A CN101825001B (zh) | 2009-03-03 | 2010-02-11 | 轴流式涡轮机 |
EP10153589.6A EP2226471B1 (en) | 2009-03-03 | 2010-02-15 | Working fluid extraction in an axial turbine |
US12/706,073 US8425181B2 (en) | 2009-03-03 | 2010-02-16 | Axial-flow turbine with flow extraction means |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2009048720A JP4848440B2 (ja) | 2009-03-03 | 2009-03-03 | 軸流タービン |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2010203302A true JP2010203302A (ja) | 2010-09-16 |
JP4848440B2 JP4848440B2 (ja) | 2011-12-28 |
Family
ID=41718807
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2009048720A Expired - Fee Related JP4848440B2 (ja) | 2009-03-03 | 2009-03-03 | 軸流タービン |
Country Status (4)
Country | Link |
---|---|
US (1) | US8425181B2 (ja) |
EP (1) | EP2226471B1 (ja) |
JP (1) | JP4848440B2 (ja) |
CN (1) | CN101825001B (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2017008756A (ja) * | 2015-06-18 | 2017-01-12 | 三菱日立パワーシステムズ株式会社 | 軸流タービン |
JPWO2021199718A1 (ja) * | 2020-03-30 | 2021-10-07 |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2679776A1 (en) * | 2012-06-28 | 2014-01-01 | Alstom Technology Ltd | Cooling system and method for an axial flow turbine |
CN102767397A (zh) * | 2012-07-09 | 2012-11-07 | 谢信芳 | 平面双击气轮机 |
DE102015218493A1 (de) | 2015-09-25 | 2017-03-30 | Siemens Aktiengesellschaft | Niederdrucksystem und Dampfturbine |
CA3182646A1 (en) | 2021-12-24 | 2023-06-24 | Itp Next Generation Turbines, S.L. | A turbine arrangement including a turbine outlet stator vane arrangement |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH10331604A (ja) * | 1997-05-30 | 1998-12-15 | Toshiba Corp | 蒸気タービンプラント |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB233677A (en) * | 1924-05-06 | 1925-10-01 | Erste Bruenner Maschinenfabrik | Improvements in turbines |
GB234784A (en) * | 1924-05-30 | 1925-07-23 | Erste Bruenner Maschinen Fab | Improvements in and relating to turbines |
DE568403C (de) * | 1928-03-13 | 1933-01-19 | Bbc Brown Boveri & Cie | Einrichtung zur Entwaesserung von Dampfturbinenbeschauflungen |
CS231077B1 (en) * | 1982-07-01 | 1984-09-17 | Miroslav Stastny | Withdrawing slot |
JPH02241904A (ja) | 1989-03-16 | 1990-09-26 | Hitachi Ltd | 蒸気タービン |
JPH03903A (ja) * | 1989-05-26 | 1991-01-07 | Hitachi Ltd | 軸流タービンのノズル・ダイヤフラム |
JPH0861006A (ja) * | 1994-08-24 | 1996-03-05 | Hitachi Ltd | 蒸気タービン |
GB0206880D0 (en) * | 2002-03-23 | 2002-05-01 | Rolls Royce Plc | A vane for a rotor arrangement for a gas turbine engine |
JP2006138259A (ja) * | 2004-11-12 | 2006-06-01 | Mitsubishi Heavy Ind Ltd | 軸流タービン |
-
2009
- 2009-03-03 JP JP2009048720A patent/JP4848440B2/ja not_active Expired - Fee Related
-
2010
- 2010-02-11 CN CN2010101155995A patent/CN101825001B/zh not_active Expired - Fee Related
- 2010-02-15 EP EP10153589.6A patent/EP2226471B1/en not_active Not-in-force
- 2010-02-16 US US12/706,073 patent/US8425181B2/en not_active Expired - Fee Related
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH10331604A (ja) * | 1997-05-30 | 1998-12-15 | Toshiba Corp | 蒸気タービンプラント |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2017008756A (ja) * | 2015-06-18 | 2017-01-12 | 三菱日立パワーシステムズ株式会社 | 軸流タービン |
US10301970B2 (en) | 2015-06-18 | 2019-05-28 | Mitsubishi Hitachi Power Systems, Ltd. | Axial turbine |
JPWO2021199718A1 (ja) * | 2020-03-30 | 2021-10-07 | ||
US11808156B2 (en) | 2020-03-30 | 2023-11-07 | Ihi Corporation | Secondary flow suppression structure |
Also Published As
Publication number | Publication date |
---|---|
CN101825001B (zh) | 2013-04-10 |
JP4848440B2 (ja) | 2011-12-28 |
US8425181B2 (en) | 2013-04-23 |
EP2226471A3 (en) | 2013-07-31 |
EP2226471B1 (en) | 2018-04-11 |
EP2226471A2 (en) | 2010-09-08 |
CN101825001A (zh) | 2010-09-08 |
US20100226768A1 (en) | 2010-09-09 |
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