JP6885677B2 - フレア状先端を有するロータブレード - Google Patents
フレア状先端を有するロータブレード Download PDFInfo
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- JP6885677B2 JP6885677B2 JP2016084884A JP2016084884A JP6885677B2 JP 6885677 B2 JP6885677 B2 JP 6885677B2 JP 2016084884 A JP2016084884 A JP 2016084884A JP 2016084884 A JP2016084884 A JP 2016084884A JP 6885677 B2 JP6885677 B2 JP 6885677B2
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- 239000012530 fluid Substances 0.000 claims description 21
- 238000004891 communication Methods 0.000 claims description 14
- 239000002826 coolant Substances 0.000 claims description 13
- 238000002485 combustion reaction Methods 0.000 claims description 3
- 239000007789 gas Substances 0.000 description 25
- 239000000567 combustion gas Substances 0.000 description 9
- 238000001816 cooling Methods 0.000 description 9
- 238000011144 upstream manufacturing Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Images
Classifications
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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
- F01D5/18—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
- 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
-
- 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
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
- F02C3/00—Gas-turbine plants characterised by the use of combustion products as the working fluid
- F02C3/04—Gas-turbine plants characterised by the use of combustion products as the working fluid having a turbine driving a compressor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
- F02C7/00—Features, components parts, details or accessories, not provided for in, or of interest apart form groups F02C1/00 - F02C6/00; Air intakes for jet-propulsion plants
- F02C7/12—Cooling of plants
- F02C7/16—Cooling of plants characterised by cooling medium
- F02C7/18—Cooling of plants characterised by cooling medium the medium being gaseous, e.g. air
-
- 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
- F05D2220/32—Application in turbines in gas 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
- F05D2240/20—Rotors
- F05D2240/30—Characteristics of rotor blades, i.e. of any element transforming dynamic fluid energy to or from rotational energy and being attached to a rotor
- F05D2240/304—Characteristics of rotor blades, i.e. of any element transforming dynamic fluid energy to or from rotational energy and being attached to a rotor related to the trailing edge of a rotor blade
-
- 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
- F05D2240/20—Rotors
- F05D2240/30—Characteristics of rotor blades, i.e. of any element transforming dynamic fluid energy to or from rotational energy and being attached to a rotor
- F05D2240/307—Characteristics of rotor blades, i.e. of any element transforming dynamic fluid energy to or from rotational energy and being attached to a rotor related to the tip of a rotor blade
-
- 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
- F05D2240/35—Combustors or associated equipment
-
- 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
- F05D2250/00—Geometry
- F05D2250/20—Three-dimensional
- F05D2250/29—Three-dimensional machined; miscellaneous
- F05D2250/294—Three-dimensional machined; miscellaneous grooved
-
- 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
- F05D2250/00—Geometry
- F05D2250/30—Arrangement of components
- F05D2250/32—Arrangement of components according to their shape
- F05D2250/324—Arrangement of components according to their shape divergent
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
Description
12 入口セクション
14 圧縮機セクション
16 燃焼器セクション
18 タービンセクション
20 排気セクション
22 シャフト
24 ロータシャフト
26 ロータディスク
28 ロータブレード
30 外側ケーシング
32 高温ガス経路
34 高温ガス
100 ロータブレード
102 装着/シャンク部
104 装着本体
106 翼形部
108 半径方向
110 プラットフォーム
112 外表面
114 正圧側壁
116 負圧側壁
118 根元
120 先端
122 半径方向外表面
124 前縁
126 後縁
128 翼形中心線又はキャンバー線
130 冷却媒体
132 内側キャビティ
134 先端キャビティ
136 先端キャップ
138 内表面−正圧側面の
140 内表面−負圧側壁の
142 外周
144 孔/アパーチャ
146 内表面
148 上面
150 排気ポート
152 アパーチャ
154 排気ポート
156 排気ポート
158 孔
160 入口
162 出口
164 トレンチ/スロット/溝
166 排気ポート
Claims (9)
- 翼形部(106)を有するロータブレード(100)であって、該翼形部が、
前縁(124)及び後縁(126)と、
前記前縁及び後縁において接続される正圧側壁(114)及び負圧側壁(116)と、
連続的な半径方向外表面(122)と連続的な内表面(138、140)とを有するブレード先端(120)と、
冷却媒体(130)を受け取るための内側キャビティ(132)と、
を有し、
前記ブレード先端(120)の前記連続的な半径方向外表面(122)が、前記正圧側壁(114)から前記負圧側壁(116)へ前記後縁(126)に渡って、前記前縁(124)から前記後縁(126)へ前記正圧側壁(114)に沿って延び、前記負圧側壁(116)から前記正圧側壁(114)へ前記前縁(124)に渡って、前記後縁(126)から前記前縁(124)へ前記負圧側壁(116)に沿って延び、
前記翼形部が更に、
前記ブレード先端において形成された先端キャビティ(134)であって、前記ブレード先端(120)の前記連続的な半径方向外表面(122)から半径方向内向きに凹状にされた先端キャップ(136)であって、該先端キャップ(136)が、前記前縁(124)と前記後縁(126)との間で前記先端キャップ(136)の周辺で前記正圧及び負圧側壁によって連続的に囲まれ、接続された先端キャップ(136)を含む前記先端キャビティ(134)を備え、
前記先端キャップ(136)が更に、前記先端キャップの内表面(146)及び半径方向反対側の上面(148)を貫通して延びて前記内側キャビティ(132)と前記先端キャビティ(134)との間の流体連通を提供するアパーチャ(144)と、
前記先端キャップ(136)の上面と、前記ブレード先端(120)の前記連続的な半径方向外表面(122)との間で前記後縁(126)を通って延び、前記先端キャビティ(132)から前記後縁(126)を通って流体連通を提供する排気ポート(150)とを備え、
前記排気ポート(150)は、該排気ポート(150)の入口(160)が前記排気ポート(150)の出口(162)よりも小さい断面積を有するようにテーパが付けられ、
前記先端キャビティ(134)を定める前記負圧側壁の内面が、半径方向に対して前記先端キャビティ(134)から外向きに傾斜して前記ブレード先端(120)の前記連続的な半径方向外表面(122)へ延び、
前記排気ポート(150)は、前記翼形部(106)の前記後縁(126)において前記ブレード先端(120)の前記連続的な内表面(138、140)を通って延び、
前記排気ポート(150)は、前記先端キャビティ(134)と流体連通する、ロータブレード(100)。 - 前記先端キャップの上面内に定められるトレンチ(164)を更に備える、請求項1に記載のロータブレード(100)。
- 前記トレンチが、前記翼形部のキャンバー線(128)に沿って延びる、請求項2に記載のロータブレード(100)。
- 前記トレンチが、前記翼形部のキャンバー線に沿って前記翼形部の後縁から前縁に向かって延びる、請求項2に記載のロータブレード(100)。
- 前記先端キャップの内表面及び上面を通って延びるアパーチャが、前記翼形部の後縁に向かった角度が付けられる、請求項1乃至4のいずれかに記載のロータブレード(100)。
- 前記翼形部の後縁に沿って定められ且つ前記先端キャップの半径方向下方に位置付けられる孔(158)を更に備え、前記孔が、前記内側キャビティと流体連通している、請求項1乃至5のいずれかに記載のロータブレード(100)。
- 圧縮機セクション(14)と、
燃焼セクション(16)と、
ロータシャフト(24)と、該ロータシャフトに結合された複数のロータブレードとを有するタービンセクション(18)と、
を備えたガスタービン(10)であって、
前記ロータブレードが各々、
前縁(124)及び後縁(126)と、
前記前縁及び後縁において接続される正圧側壁(114)及び負圧側壁(116)と、
連続的な半径方向外表面(122)と連続的な内表面(138、140)とを有するブレード先端(120)と、
冷却媒体(130)を受け取るための内側キャビティ(132)と、
を有する翼形部(106)を含み、
前記ブレード先端(120)の前記連続的な半径方向外表面(122)が、前記正圧側壁(114)から前記負圧側壁(116)へ前記後縁(126)に渡って、前記前縁(124)から前記後縁(126)へ前記正圧側壁(114)に沿って延び、前記負圧側壁(116)から前記正圧側壁(114)へ前記前縁(124)に渡って、前記後縁(126)から前記前縁(124)へ前記負圧側壁(116)に沿って延び、
前記翼形部が更に、
前記ブレード先端(120)において形成された先端キャビティ(134)であって、前記ブレード先端(120)の前記連続的な半径方向外表面(122)から半径方向内向きに凹状にされた先端キャップ(136)であって、該先端キャップ(136)が、前記前縁(124)と前記後縁(126)との間で前記先端キャップ(136)の周辺で前記正圧及び負圧側壁によって連続的に囲まれ、接続された先端キャップ(136)を含む前記先端キャビティ(134)を備え、
前記先端キャップ(136)が更に、前記先端キャップ(136)の内表面(146)及び半径方向反対側の上面(148)を貫通して延びて前記内側キャビティ(132)と前記先端キャビティ(134)との間の流体連通を提供する、前記後縁(126)に向かって角度が付けられたアパーチャ(152)と、
前記先端キャビティ(134)と流体連通する排気ポート(150)とを備え、
前記排気ポート(150)は、前記先端キャップ(136)の前記上面と前記ブレード先端(120)の前記連続的な半径方向外表面(122)との間の入口(160)から前記ブレード先端(120)に設けられた出口(162)へ前記後縁(126)を通って延び、前記先端キャビティ(132)から前記後縁(126)を通って流体連通を提供し、
前記先端キャビティ(134)を定める前記負圧側壁の内面が、半径方向に対して前記先端キャビティ(134)から外向きに傾斜して前記ブレード先端(120)の前記連続的な半径方向外表面(122)へ延びる、ガスタービン(10)。 - 前記先端キャップの上面内に定められるトレンチ(164)を更に備え、該トレンチが、前記翼形部のキャンバー線に沿って前記翼形部の後縁から前縁に向かって延びる、請求項7に記載のガスタービン(10)。
- 前記翼形部の後縁に沿って定められ且つ前記先端キャップの半径方向下方に位置付けられる孔(158)を更に備え、前記孔が、前記内側キャビティと流体連通している、請求項7または8に記載のガスタービン(10)。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US14/699,321 US10107108B2 (en) | 2015-04-29 | 2015-04-29 | Rotor blade having a flared tip |
US14/699,321 | 2015-04-29 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2016211547A JP2016211547A (ja) | 2016-12-15 |
JP6885677B2 true JP6885677B2 (ja) | 2021-06-16 |
Family
ID=55860770
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2016084884A Active JP6885677B2 (ja) | 2015-04-29 | 2016-04-21 | フレア状先端を有するロータブレード |
Country Status (4)
Country | Link |
---|---|
US (1) | US10107108B2 (ja) |
EP (1) | EP3088675B1 (ja) |
JP (1) | JP6885677B2 (ja) |
CN (1) | CN106150562B (ja) |
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EP3225782B1 (en) * | 2016-03-29 | 2019-01-23 | Ansaldo Energia Switzerland AG | Airfoil and corresponding blading member |
EP3421754B1 (en) * | 2016-03-30 | 2021-12-01 | Mitsubishi Heavy Industries Engine & Turbocharger, Ltd. | Variable geometry turbocharger |
EP3301261B1 (en) * | 2016-09-14 | 2019-07-17 | Rolls-Royce plc | Blade |
US10443405B2 (en) * | 2017-05-10 | 2019-10-15 | General Electric Company | Rotor blade tip |
US10533428B2 (en) * | 2017-06-05 | 2020-01-14 | United Technologies Corporation | Oblong purge holes |
US11118462B2 (en) * | 2019-01-24 | 2021-09-14 | Pratt & Whitney Canada Corp. | Blade tip pocket rib |
EP3828388B1 (en) * | 2019-11-28 | 2023-06-28 | Ansaldo Energia Switzerland AG | Blade for a gas turbine and electric power production plant comprising said blade |
US11299991B2 (en) * | 2020-04-16 | 2022-04-12 | General Electric Company | Tip squealer configurations |
CN112576316B (zh) * | 2020-11-16 | 2023-02-21 | 哈尔滨工业大学 | 涡轮叶片 |
US11371359B2 (en) | 2020-11-26 | 2022-06-28 | Pratt & Whitney Canada Corp. | Turbine blade for a gas turbine engine |
US11608746B2 (en) * | 2021-01-13 | 2023-03-21 | General Electric Company | Airfoils for gas turbine engines |
US11542822B1 (en) * | 2021-07-19 | 2023-01-03 | Doosan Heavy Industries & Construction Co., Ltd. | Turbine blade with blade tip ejector |
US11512599B1 (en) * | 2021-10-01 | 2022-11-29 | General Electric Company | Component with cooling passage for a turbine engine |
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US20160319673A1 (en) | 2016-11-03 |
EP3088675A1 (en) | 2016-11-02 |
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