JP5848876B2 - タービンブレード冷却システム - Google Patents
タービンブレード冷却システム Download PDFInfo
- Publication number
- JP5848876B2 JP5848876B2 JP2011007395A JP2011007395A JP5848876B2 JP 5848876 B2 JP5848876 B2 JP 5848876B2 JP 2011007395 A JP2011007395 A JP 2011007395A JP 2011007395 A JP2011007395 A JP 2011007395A JP 5848876 B2 JP5848876 B2 JP 5848876B2
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- Prior art keywords
- trailing edge
- trench
- turbine blade
- tip
- turbine
- 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.)
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- 238000001816 cooling Methods 0.000 title claims description 109
- 239000002826 coolant Substances 0.000 claims description 6
- 230000007423 decrease Effects 0.000 claims description 5
- 239000000567 combustion gas Substances 0.000 description 23
- 239000000446 fuel Substances 0.000 description 21
- 239000007789 gas Substances 0.000 description 7
- 238000000034 method Methods 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 230000003647 oxidation Effects 0.000 description 4
- 238000007254 oxidation reaction Methods 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 3
- 238000011144 upstream manufacturing Methods 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 239000003963 antioxidant agent Substances 0.000 description 1
- 230000003078 antioxidant effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000003698 laser cutting Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000011253 protective coating Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000012720 thermal barrier coating Substances 0.000 description 1
- 239000002699 waste material Substances 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
- 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
- F01D5/20—Specially-shaped blade tips to seal space between 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
- 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
- F01D5/186—Film cooling
-
- 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
- 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
-
- 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)
- Turbine Rotor Nozzle Sealing (AREA)
Description
12 燃料ノズル
14 燃料供給部
16 燃焼器
17 高温燃焼ガス
18 タービン
19 シャフト
20 排出出口
22 圧縮機
24 吸気口
26 負荷
30 空気
32 加圧空気
34 加圧空気及び燃料
36 燃焼ガス
38 長手方向軸線
40 タービンブレード
42 ロータディスク
44 タービンシュラウド
46 クリアランスギャップ
48 ダブテール
49 ダブテールスロット
50 下流方向
51 半径方向軸線
52 上流方向
53 円周方向
54 翼形部
55 中空キャビティ
56 プラットフォーム
58 正圧側壁
60 負圧側壁
62 ブレード先端
66 前縁
68 後縁
70 フィルム冷却孔
72 後縁吐出孔
74 フィルム冷却孔
76 当接シェルフ
78 冷却孔
80 先端プレート
82 先端キャビティ
84 正圧側先端壁
86 負圧側先端壁
90 冷却通路
94 後縁トレンチ
96 負圧側トレンチ壁
98 正圧側トレンチ壁
100 トレンチ長
101 前縁側
102 ブレード長
103 後縁側
105 前縁側幅
106 床部
107 後縁側幅
108 冷却通路
110 冷却孔
112 スロット/溝
113 間隔(冷却通路間)
114 出口側
115 ライン(長手方向軸線に平行)
116 角度
118 前縁側深さ
120 後縁側深さ
122 冷却空気
124 流路
126 流路
128 流路
130 冷却通路
Claims (10)
- 半径方向ブレード先端(62)を有するタービンブレード(40)と、
前記半径方向ブレード先端(62)内に形成され、前記タービンブレード(40)の先端キャビティ(82)から後縁(68)まで延びる後縁トレンチ(94)と、
を備えるシステムであって、
前記後縁トレンチ(94)が冷却通路(108)の第1のセットを含み、
前記冷却通路の各々が、前記後縁トレンチ(94)の第1の側壁(98)に沿って、前記後縁トレンチ(94)の床部(106)から離れて前記後縁(68)の方向に向かって延びる第1のスロット(112)を含み、
前記第1のスロット(112)の各々は、前記後縁トレンチ(94)の前記床部(106)を通って延びる第1のそれぞれの孔(110)に結合される、
システム(100)。 - 前記後縁トレンチ(94)が、冷却通路(108)の第2のセットを含み、各々が、前記後縁トレンチ(94)の第2の側壁(96)に沿って形成され且つ前記後縁トレンチ(94)の床部(106)を通って延びる第2のそれぞれの孔(110)に結合された第2のスロット(112)を含み、
前記の第2の側壁(96)が前記第1の側壁(98)と対向している、
請求項1に記載のシステム。 - 前記冷却通路(108)の前記第1のセット及び前記第2のセットが、前記後縁トレンチ(94)の第1の側壁(98)及び第2の側壁(96)にそれぞれ沿って交互して配列される、請求項2に記載のシステム。
- 前記タービンブレード(40)が、正圧側壁(58)及び負圧側壁(60)を有する翼形部(54)を含み、前記正圧側壁(58)及び負圧側壁(60)が離間して配置されて、冷却剤(122)の流れを受けるよう構成された中空内部キャビティ(55)を定め、前記中空内部キャビティが、前記後縁トレンチ(94)において冷却通路(108)の第1のセット及び第2のセットに結合される、請求項2または3に記載のシステム。
- 前記第1のセットの冷却通路(108)の各々が、前記後縁トレンチ(94)の長さの1〜20%の間の距離(113)だけ互いに離間して配置され、
前記第2のセットの冷却通路(108)の各々が、前記後縁トレンチ(94)の長さの1〜20%の間の距離(113)だけ互いに離間して配置される、
請求項2から4のいずれかに記載のシステム。 - 前記第1のセットの冷却通路(108)の各々の間の間隔(113)並びに前記第2のセットの冷却通路(108)の各々の間の間隔(113)が、前記タービンブレード(40)の後縁(68)に向かって漸次的に減少する、請求項5に記載のシステム。
- 前記後縁トレンチ(94)の第1の側壁(98)上の前記冷却通路(108)の第1のセットの各々間の距離(113)が、0.25〜5cmの間であり、
前記後縁トレンチ(94)の第2の側壁(96)上の前記冷却通路(108)の第2のセットの各々間の距離(113)が、0.25〜5cmの間である、
請求項2から6のいずれかに記載のシステム。 - 前記第1の側壁(98)上の前記冷却通路(108)の第1のセットが、前記タービンブレード(40)の正圧側壁(58)に近接している、請求項1から7のいずれかに記載のシステム。
- 前記後縁トレンチ(94)の長さ(100)が、前記タービンブレード(40)の半径方向ブレード先端の翼弦長さ(102)の5〜40%の間である、請求項1から8のいずれかに記載のシステム。
- 前縁(66)及び後縁(68)を有し、半径方向先端(62)を含むタービンブレード(40)を備えたタービン(18)と、
前記半径方向ブレード先端(62)内に形成され、前記タービンブレード(40)の先端キャビティ(82)から前記後縁(68)まで延びる後縁トレンチ(94)と、
を備えるシステム(10)であって、
前記後縁トレンチ(94)が、
正圧側トレンチ壁(98)と、
負圧側トレンチ壁(96)と、
トレンチ床部(106)と、
前記タービンブレード(40)の後縁(68)に向けて下流方向(50)に角度が付いた複数の冷却通路(108)と、
を含み、
前記複数の冷却通路(108)の少なくとも1つが、前記正圧側トレンチ壁(98)または前記負圧側トレンチ壁(96)に少なくとも部分的に沿って延びる、
システム(10)。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/691,691 | 2010-01-21 | ||
US12/691,691 US8628299B2 (en) | 2010-01-21 | 2010-01-21 | System for cooling turbine blades |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2011149427A JP2011149427A (ja) | 2011-08-04 |
JP5848876B2 true JP5848876B2 (ja) | 2016-01-27 |
Family
ID=44277703
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2011007395A Active JP5848876B2 (ja) | 2010-01-21 | 2011-01-18 | タービンブレード冷却システム |
Country Status (5)
Country | Link |
---|---|
US (1) | US8628299B2 (ja) |
JP (1) | JP5848876B2 (ja) |
CN (1) | CN102135017B (ja) |
CH (1) | CH702605B1 (ja) |
DE (1) | DE102011000198B4 (ja) |
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CA2859993C (en) | 2011-12-29 | 2019-10-01 | Rolls-Royce North American Technologies Inc. | Gas turbine engine and turbine blade |
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-
2010
- 2010-01-21 US US12/691,691 patent/US8628299B2/en active Active
-
2011
- 2011-01-18 JP JP2011007395A patent/JP5848876B2/ja active Active
- 2011-01-18 DE DE102011000198.0A patent/DE102011000198B4/de active Active
- 2011-01-19 CH CH00094/11A patent/CH702605B1/de not_active IP Right Cessation
- 2011-01-20 CN CN201110031251.2A patent/CN102135017B/zh active Active
Also Published As
Publication number | Publication date |
---|---|
DE102011000198B4 (de) | 2022-05-12 |
DE102011000198A1 (de) | 2011-07-28 |
JP2011149427A (ja) | 2011-08-04 |
CH702605B1 (de) | 2015-09-15 |
CN102135017B (zh) | 2015-11-25 |
US8628299B2 (en) | 2014-01-14 |
CH702605A2 (de) | 2011-07-29 |
CN102135017A (zh) | 2011-07-27 |
US20110176929A1 (en) | 2011-07-21 |
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