WO1998034013A1 - Pale fixe de refroidissement pour turbine a gaz - Google Patents
Pale fixe de refroidissement pour turbine a gazInfo
- Publication number
- WO1998034013A1 WO1998034013A1 PCT/JP1998/000206 JP9800206W WO9834013A1 WO 1998034013 A1 WO1998034013 A1 WO 1998034013A1 JP 9800206 W JP9800206 W JP 9800206W WO 9834013 A1 WO9834013 A1 WO 9834013A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- air
- cooling
- steam
- vane
- shroud
- Prior art date
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
- 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
- F01D5/18—Hollow blades, i.e. blades with cooling or heating channels or cavities; Heating, heat-insulating or cooling means on blades
- F01D5/187—Convection cooling
-
- 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
- F05D2240/80—Platforms for stationary or moving blades
- F05D2240/81—Cooled platforms
-
- 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
- F05D2260/20—Heat transfer, e.g. cooling
- F05D2260/201—Heat transfer, e.g. cooling by impingement of a fluid
-
- 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
- F05D2260/20—Heat transfer, e.g. cooling
- F05D2260/202—Heat transfer, e.g. cooling by film cooling
-
- 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
- F05D2260/20—Heat transfer, e.g. cooling
- F05D2260/221—Improvement of heat transfer
- F05D2260/2212—Improvement of heat transfer by creating turbulence
-
- 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
- F05D2260/20—Heat transfer, e.g. cooling
- F05D2260/232—Heat transfer, e.g. cooling characterized by the cooling medium
- F05D2260/2322—Heat transfer, e.g. cooling characterized by the cooling medium steam
Definitions
- the present invention relates to a gas turbine cooling vane, and more particularly to a cooling structure of a vane cooling using steam and air as a cooling medium.
- Leakage Hot gas turbine vanes are cooled using a portion of compressed air to maintain the blade metal temperature below the temperature allowed by the blade material.
- the cooling of the stationary blade is performed by cooling techniques such as impingement cooling, film cooling, shower head cooling, and pin fin cooling, depending on the inlet gas temperature.
- 4 and 5 are a plan sectional view and a perspective view, respectively, of an example of the current air-cooled vane.
- an insert 53 is attached inside the cooling vane along with the blade profile 51.
- the insert 53 has a notch 52 at the leading edge of the stator vane.
- a shower head cooling 54 is provided from a notch 52 provided in the insert 53.
- the notch 52 is provided only in the front part of the wing for the insert 53 because the front part is a high pressure area and air blowing to this part is not possible at low pressure after impingement cooling. This is because air can be blown out directly without passing through Insert 5 3 because it becomes possible.
- the back of the wing, the back of the wing, and the abdomen of the wing are subjected to insert cooling 55 and film cooling 56 through inserts 53 as shown in FIG. If the cooling air is blown out too strongly at the part where the film is cooled, the cooling air will mix with the main gas flow and impair the original effect of film cooling, so it is necessary to optimize the blowing strength.
- the pin fin cooling 58 is performed on the trailing edge of the blade through the bin fin hole 57, and the cooled air joins the main gas flow.
- gas turbine cooling vanes are performed by combining various cooling technologies. As shown in the perspective view of the cooling vane in FIG. 5, the outer shroud 59 and the inner shroud 60 have a cooling air inlet 61, and the vane 51 is located between the two shrouds 59, 60. There is.
- the surface of the stationary blade 51 is provided with holes for shading, chip cooling, film cooling, and pin fin cooling from the blade front to the blade trailing edge.
- Shroud cooling holes 62 are also formed in both shrouds 59 and 60.
- the cooling medium passage through which the steam flows is required to be closed to the outside and have a steam supply port and a recovery port.
- a gas turbine vane using two types of air and steam as a cooling medium there is Japanese Patent Application No. 8-1907-117 “Gas turbine vane”.
- the present invention relates to a turbine cooling vane composed of a stationary blade, an outer shroud sandwiching the stationary blade, and an inner shroud.
- the challenge is to provide a gas turbine cooling vane that can cope with high temperatures by responding to difficult parts with steam cooling.
- DISCLOSURE OF THE INVENTION the present invention provides a gas turbine cooling vane having the following configuration. That is, first, for the stationary blade, a plurality of inverting serpentine flow paths having straight and oblique turbulence are provided therein, and the serpentine flow path is provided by a steam cooling impingement plate provided on the outer shroud. And the finned steam inlet chamber and steam outlet.
- a slot hole is provided in the trailing edge of the stationary blade and is adjacent to the trailing edge of the blade, provided in the outer shroud or the inner shroud without communicating with the serpentine flow path, and provided with an air-cooled impingement plate and fins.
- An air passage communicating with the air inlet chamber is provided.
- the outer shroud is provided with an air cooling channel with an air outlet on its outer surface to cool the air
- the steam impingement cooling unit is provided on the part other than the wing profile inside the air cooling channel. And partly form an air impingement cooling section.
- the inner shroud is provided with an air cooling channel having an air outlet at its outer edge, and is air-cooled.
- the parts other than the wing profile inside the air cooling channel are impingement cooled by air and shaken.
- the film is cooled by the air coming out of the holes.
- the gas turbine cooling vane according to the present invention having the above-described configuration, uses two kinds of cooling mediums, steam and air, to cool, so that the following operational effects are obtained.
- the flow path for the cooling steam is cut off from the flow path for the cooling air and closed, and the steam used for cooling can be recovered. Natatsu steam can be reused.
- the amount of cooling air can be reduced by using air and steam as the cooling medium, and the total flow rate of steam and air can be reduced as compared with the past because the steam is more powerful and the heat capacity is large.
- FIG. 1 is a sectional view of a gas turbine cooling vane according to an embodiment of the present invention
- FIG. 2 is a plan view of an outer shroud of the vane shown in FIG. 1
- FIG. Figure 4 is a plan view of the inner blade of the vane shown
- Fig. 4 is a cross-sectional plan view of the air-cooled vane
- Fig. 5 is a conventional sky? ⁇ It is a perspective view of the wing.
- BEST MODE FOR CARRYING OUT THE INVENTION a gas turbine cooling vane according to the present invention will be specifically described based on one embodiment shown in FIGS. 1 to 3.
- FIG. 1 is a cross-sectional view of the inside of the gas turbine cooling vane.
- Figs. 2 and 3 are plan views of the upper outer shroud 4 and the lower inner shroud 11, respectively.
- a plurality of serpentine channels 3 having straight and diagonal turbulators 2 are provided inside a stationary blade 1.
- the serpentine flow path 3 communicates the cooling steam inlet side with the steam cooling impingement plate 5 provided on the outer shroud 4 and the steam inlet chamber 7 with the shroud inner fins 6, and the outlet side communicates with the steam outlet 8.
- Slots 9 are formed in the trailing edge of the stator vane 1 and an air flow path 10 is formed adjacent to the trailing edge.
- the outer edge of the outer shroud 4 is provided with an air cooling channel 1.6 having a plurality of air outlets 15, and the portion other than the blade profile inside the air cooling channel 16 is provided.
- the structure has a structure in which an impingement cooling section 17 using steam and an impingement cooling section 18 partially using air are formed.
- the outer part of the inner shroud 11 is air-cooled by providing an air cooling channel 19, and the parts other than the inner wing profile are caused by air flowing out of the sieve hole 20.
- the film is configured to be cooled.
- the gas turbine cooling vane according to the present embodiment has the above-described configuration. Inside the vane 1, cooling steam flowing from the steam inlet chamber 7 and flowing out from the steam outlet 8 is supplied to the internal Cooled by flowing 3. The trailing edge of the stationary blade 1 is cooled by an air flow passage 10 through which air flows in from the air inlet chamber 14 and flows out from the slot hole 9.
- the outer shroud 4 is cooled by the air flowing through the air cooling passage 16 at the outer periphery thereof, and the portion other than the blade profile inside the air cooling passage 16 is a steam impingement cooling unit 1. It is cooled by 7 and air impingement cooling section 18. Also, the inner shroud 11 is cooled by the air flowing through the air cooling flow path 19 at the outer edge, and the portion other than the wing profile inside the air cooling flow path 19 is filmed by air flowing out of the shake hole 20. Cooled. As described above, the present invention is not limited to these embodiments, and the present invention is not limited to these embodiments. It goes without saying that various changes may be made to the configuration.
- cooling air is supplied from the air inlet chamber 14 provided in the inner shroud 11 to the air passage 10 for cooling the trailing edge of the stationary blade 1.
- the cooling air may be supplied from the outer shroud 4, or may be supplied from both the inner shroud 11 and the outer shroud 4.
- the vane is cooled by the steam flowing through the servantine flow path and the air flowing through the rear air flow path.
- the outer shroud is cooled by the air flowing through the outer edge air cooling channel and the inner steam impingement cooling unit and the air impingement cooling unit.
- the air cooling channel of the section and the inside are cooled by film cooling of the air, and the cooling is effectively performed by steam and air.
- an efficient cooling effect is produced by the structure that enables the use of two types of cooling media, and it is possible to cope with an increase in the gas turbine inlet temperature. .
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP98900673A EP0894946B1 (en) | 1997-02-04 | 1998-01-21 | Gas turbine cooling stationary vane |
US09/155,787 US6036436A (en) | 1997-02-04 | 1998-01-21 | Gas turbine cooling stationary vane |
DE69821687T DE69821687T2 (de) | 1997-02-04 | 1998-01-21 | Kühlung der leitschaufel einer gasturbine |
CA002250169A CA2250169C (en) | 1997-02-04 | 1998-01-21 | Cooled stationary blade of gas turbine |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9/21341 | 1997-02-04 | ||
JP02134197A JP3316405B2 (ja) | 1997-02-04 | 1997-02-04 | ガスタービン冷却静翼 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1998034013A1 true WO1998034013A1 (fr) | 1998-08-06 |
Family
ID=12052409
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP1998/000206 WO1998034013A1 (fr) | 1997-02-04 | 1998-01-21 | Pale fixe de refroidissement pour turbine a gaz |
Country Status (6)
Country | Link |
---|---|
US (1) | US6036436A (ja) |
EP (1) | EP0894946B1 (ja) |
JP (1) | JP3316405B2 (ja) |
CA (1) | CA2250169C (ja) |
DE (1) | DE69821687T2 (ja) |
WO (1) | WO1998034013A1 (ja) |
Cited By (2)
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EP1022435A3 (en) * | 1999-01-25 | 2003-12-03 | General Electric Company | Internal cooling circuit for gas turbine bucket |
US8096772B2 (en) | 2009-03-20 | 2012-01-17 | Siemens Energy, Inc. | Turbine vane for a gas turbine engine having serpentine cooling channels within the inner endwall |
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US6406254B1 (en) * | 1999-05-10 | 2002-06-18 | General Electric Company | Cooling circuit for steam and air-cooled turbine nozzle stage |
EP1126134A1 (de) * | 2000-02-17 | 2001-08-22 | Siemens Aktiengesellschaft | Luft- und dampfgekühlte Gasturbinenschaufel |
JP3782637B2 (ja) * | 2000-03-08 | 2006-06-07 | 三菱重工業株式会社 | ガスタービン冷却静翼 |
US6506013B1 (en) * | 2000-04-28 | 2003-01-14 | General Electric Company | Film cooling for a closed loop cooled airfoil |
US6422810B1 (en) * | 2000-05-24 | 2002-07-23 | General Electric Company | Exit chimney joint and method of forming the joint for closed circuit steam cooled gas turbine nozzles |
US6508620B2 (en) | 2001-05-17 | 2003-01-21 | Pratt & Whitney Canada Corp. | Inner platform impingement cooling by supply air from outside |
JP4508482B2 (ja) * | 2001-07-11 | 2010-07-21 | 三菱重工業株式会社 | ガスタービン静翼 |
US6640547B2 (en) | 2001-12-10 | 2003-11-04 | Power Systems Mfg, Llc | Effusion cooled transition duct with shaped cooling holes |
DE10217388A1 (de) * | 2002-04-18 | 2003-10-30 | Siemens Ag | Luft- und dampfgekühlte Plattform einer Turbinenschaufel |
US6887039B2 (en) * | 2002-07-10 | 2005-05-03 | Mitsubishi Heavy Industries, Ltd. | Stationary blade in gas turbine and gas turbine comprising the same |
US6761529B2 (en) | 2002-07-25 | 2004-07-13 | Mitshubishi Heavy Industries, Ltd. | Cooling structure of stationary blade, and gas turbine |
US6988872B2 (en) * | 2003-01-27 | 2006-01-24 | Mitsubishi Heavy Industries, Ltd. | Turbine moving blade and gas turbine |
US6955523B2 (en) * | 2003-08-08 | 2005-10-18 | Siemens Westinghouse Power Corporation | Cooling system for a turbine vane |
US6929445B2 (en) * | 2003-10-22 | 2005-08-16 | General Electric Company | Split flow turbine nozzle |
EP1614859B1 (de) | 2004-07-05 | 2007-04-11 | Siemens Aktiengesellschaft | Filmgekühlte Turbinenschaufel |
GB0523469D0 (en) | 2005-11-18 | 2005-12-28 | Rolls Royce Plc | Blades for gas turbine engines |
EP1923574B1 (de) * | 2006-11-20 | 2014-10-29 | Siemens Aktiengesellschaft | Verdichter, Turbinenanlage und Verfahren zum Zuführen von Heissluft |
GB2444266B (en) | 2006-11-30 | 2008-10-15 | Rolls Royce Plc | An air-cooled component |
US7645122B1 (en) | 2006-12-01 | 2010-01-12 | Florida Turbine Technologies, Inc. | Turbine rotor blade with a nested parallel serpentine flow cooling circuit |
EP1975373A1 (en) | 2007-03-06 | 2008-10-01 | Siemens Aktiengesellschaft | Guide vane duct element for a guide vane assembly of a gas turbine engine |
US9322285B2 (en) * | 2008-02-20 | 2016-04-26 | United Technologies Corporation | Large fillet airfoil with fanned cooling hole array |
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US8632297B2 (en) * | 2010-09-29 | 2014-01-21 | General Electric Company | Turbine airfoil and method for cooling a turbine airfoil |
US8545180B1 (en) * | 2011-02-23 | 2013-10-01 | Florida Turbine Technologies, Inc. | Turbine blade with showerhead film cooling holes |
US8870525B2 (en) | 2011-11-04 | 2014-10-28 | General Electric Company | Bucket assembly for turbine system |
US8840370B2 (en) | 2011-11-04 | 2014-09-23 | General Electric Company | Bucket assembly for turbine system |
US8845289B2 (en) | 2011-11-04 | 2014-09-30 | General Electric Company | Bucket assembly for turbine system |
CN102953767A (zh) * | 2012-11-05 | 2013-03-06 | 西安交通大学 | 一种高温透平叶片冷却系统 |
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US9771816B2 (en) | 2014-05-07 | 2017-09-26 | General Electric Company | Blade cooling circuit feed duct, exhaust duct, and related cooling structure |
US9638045B2 (en) * | 2014-05-28 | 2017-05-02 | General Electric Company | Cooling structure for stationary blade |
EP3189214A1 (en) | 2014-09-04 | 2017-07-12 | Siemens Aktiengesellschaft | Internal cooling system with insert forming nearwall cooling channels in midchord cooling cavities of a gas turbine airfoil |
JP6312929B2 (ja) * | 2014-09-08 | 2018-04-18 | シーメンス エナジー インコーポレイテッド | プラットフォームにおいて、前方、弦中央および後方の冷却チャンバを有する冷却されるタービンベーンプラットフォーム |
CN107429568B (zh) | 2015-03-17 | 2019-11-29 | 西门子能源有限公司 | 用于涡轮发动机中的翼型件的在后缘冷却通道中具有收缩扩张出口槽的内部冷却系统 |
US9909436B2 (en) | 2015-07-16 | 2018-03-06 | General Electric Company | Cooling structure for stationary blade |
US10428660B2 (en) * | 2017-01-31 | 2019-10-01 | United Technologies Corporation | Hybrid airfoil cooling |
US10669861B2 (en) * | 2017-02-15 | 2020-06-02 | Raytheon Technologies Corporation | Airfoil cooling structure |
US10662783B2 (en) * | 2018-08-29 | 2020-05-26 | United Technologies Corporation | Variable heat transfer collector baffle |
US11473444B2 (en) * | 2019-11-08 | 2022-10-18 | Raytheon Technologies Corporation | Ceramic airfoil with cooling air turn |
CN113047912A (zh) * | 2021-04-19 | 2021-06-29 | 南昌航空大学 | 一种带梅花形扰流柱的层板冷却结构 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6363504U (ja) * | 1986-10-15 | 1988-04-26 | ||
JPH02241902A (ja) * | 1989-03-13 | 1990-09-26 | Toshiba Corp | タービンの冷却翼および複合発電プラント |
JPH06257405A (ja) * | 1992-12-30 | 1994-09-13 | General Electric Co <Ge> | タービン |
JPH08165902A (ja) * | 1994-10-12 | 1996-06-25 | Hitachi Ltd | セラミック静翼 |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5634766A (en) * | 1994-08-23 | 1997-06-03 | General Electric Co. | Turbine stator vane segments having combined air and steam cooling circuits |
JP2971386B2 (ja) * | 1996-01-08 | 1999-11-02 | 三菱重工業株式会社 | ガスタービン静翼 |
-
1997
- 1997-02-04 JP JP02134197A patent/JP3316405B2/ja not_active Expired - Fee Related
-
1998
- 1998-01-21 DE DE69821687T patent/DE69821687T2/de not_active Expired - Lifetime
- 1998-01-21 US US09/155,787 patent/US6036436A/en not_active Expired - Lifetime
- 1998-01-21 EP EP98900673A patent/EP0894946B1/en not_active Expired - Lifetime
- 1998-01-21 CA CA002250169A patent/CA2250169C/en not_active Expired - Fee Related
- 1998-01-21 WO PCT/JP1998/000206 patent/WO1998034013A1/ja active IP Right Grant
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6363504U (ja) * | 1986-10-15 | 1988-04-26 | ||
JPH02241902A (ja) * | 1989-03-13 | 1990-09-26 | Toshiba Corp | タービンの冷却翼および複合発電プラント |
JPH06257405A (ja) * | 1992-12-30 | 1994-09-13 | General Electric Co <Ge> | タービン |
JPH08165902A (ja) * | 1994-10-12 | 1996-06-25 | Hitachi Ltd | セラミック静翼 |
Non-Patent Citations (1)
Title |
---|
See also references of EP0894946A4 * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1022435A3 (en) * | 1999-01-25 | 2003-12-03 | General Electric Company | Internal cooling circuit for gas turbine bucket |
US8096772B2 (en) | 2009-03-20 | 2012-01-17 | Siemens Energy, Inc. | Turbine vane for a gas turbine engine having serpentine cooling channels within the inner endwall |
Also Published As
Publication number | Publication date |
---|---|
US6036436A (en) | 2000-03-14 |
EP0894946A4 (en) | 2000-11-29 |
JP3316405B2 (ja) | 2002-08-19 |
EP0894946A1 (en) | 1999-02-03 |
EP0894946B1 (en) | 2004-02-18 |
DE69821687D1 (de) | 2004-03-25 |
CA2250169C (en) | 2002-07-30 |
DE69821687T2 (de) | 2004-12-02 |
JPH10220203A (ja) | 1998-08-18 |
CA2250169A1 (en) | 1998-08-06 |
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