JPH02131001U - - Google Patents
Info
- Publication number
- JPH02131001U JPH02131001U JP3917989U JP3917989U JPH02131001U JP H02131001 U JPH02131001 U JP H02131001U JP 3917989 U JP3917989 U JP 3917989U JP 3917989 U JP3917989 U JP 3917989U JP H02131001 U JPH02131001 U JP H02131001U
- Authority
- JP
- Japan
- Prior art keywords
- cooling air
- gas turbine
- turbine blade
- cooling
- cooling structure
- 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.)
- Pending
Links
- 238000001816 cooling Methods 0.000 claims description 11
- 238000010586 diagram Methods 0.000 description 4
Description
第１図は本考案によるガスタービン翼冷却構造
の一例を示し、ａはその要部斜視断面図、ｂはａ
図のＢ−Ｂ線断面図、ｃはａ図のＣ−Ｃ線断面図
、第２図は本考案によるピンフインの構造組成を
示し、ａはその一部模式図、ｂはそのフインの円
柱前表面における突起の配設位置（角度）を示す
模式図、第３図は一般的な（冷却）空気流れに置
かれた円柱回りの熱伝達率分布を示し、ａは境界
層又は乱流域のレイノルズ数Ｒｅとヌセルト数Ｎ
ｕとの関係図、ｂはａ図のＢ−Ｂ線拡大図、第４
図は従来のガスタービン翼冷却構造を示し、ａ′
はその要部斜視断面図、ｂ′はａ′図のＢ′−Ｂ
′線断面図、ｃ′はａ′図のＣ′−Ｃ′線断面図
、第５図は従来の冷却構造における冷却通路内の
各フイン列方向における熱伝達率分布状態図であ
る。
１……ガスタービン翼、２……冷却通路、３，
３′……各ピンフイン、４……冷却空気流入口、
５……突起、ａ……冷却空気流、ｓ……よどみ点
。
FIG. 1 shows an example of a gas turbine blade cooling structure according to the present invention, in which a is a perspective sectional view of the main part, and b is a
Figure 2 shows the structural composition of the pin fin according to the present invention, where a is a partial schematic diagram and b is the front of the cylinder of the fin. A schematic diagram showing the location (angle) of protrusions on the surface. Figure 3 shows the heat transfer coefficient distribution around a cylinder placed in a general (cooling) air flow, and a is the Reynolds of the boundary layer or turbulent region. Number Re and Nusselt number N
Relationship diagram with u, b is an enlarged view of the BB line of diagram a, 4th
The figure shows a conventional gas turbine blade cooling structure, a'
is a perspective sectional view of the main part, and b' is B'-B in figure a'.
5 is a cross-sectional view taken along line C'-C' of figure a', and FIG. 1...Gas turbine blade, 2...Cooling passage, 3,
3'...Each pin fin, 4...Cooling air inlet,
5... protrusion, a... cooling air flow, s... stagnation point.
Claims (1)
構造において、冷却空気流入口側に千鳥状に配置
したピンフインに、突起を冷却空気流の流入方向
側で、かつ流入線に対して対称位置に配設したこ
とを特徴とするガスタービン翼冷却構造。 In a gas turbine blade cooling structure that supplies cooling air into the blades, pin fins are arranged in a staggered manner on the cooling air inlet side, and protrusions are arranged on the cooling air inflow direction side and at symmetrical positions with respect to the inflow line. A gas turbine blade cooling structure characterized by the following:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3917989U JPH02131001U (en) | 1989-04-04 | 1989-04-04 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3917989U JPH02131001U (en) | 1989-04-04 | 1989-04-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02131001U true JPH02131001U (en) | 1990-10-30 |
Family
ID=31547855
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3917989U Pending JPH02131001U (en) | 1989-04-04 | 1989-04-04 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02131001U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000199404A (en) * | 1998-12-18 | 2000-07-18 | General Electric Co <Ge> | Turbine blade portion and blade portion cooling method |
| JP2001132405A (en) * | 1999-09-17 | 2001-05-15 | General Electric Co <Ge> | Device for reducing thermal stress in turbine aerofoil |
| JP2019102421A (en) * | 2017-12-04 | 2019-06-24 | 株式会社東芝 | Battery |
-
1989
- 1989-04-04 JP JP3917989U patent/JPH02131001U/ja active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000199404A (en) * | 1998-12-18 | 2000-07-18 | General Electric Co <Ge> | Turbine blade portion and blade portion cooling method |
| JP4537518B2 (en) * | 1998-12-18 | 2010-09-01 | ゼネラル・エレクトリック・カンパニイ | Turbine airfoil and airfoil cooling method |
| JP2001132405A (en) * | 1999-09-17 | 2001-05-15 | General Electric Co <Ge> | Device for reducing thermal stress in turbine aerofoil |
| JP2019102421A (en) * | 2017-12-04 | 2019-06-24 | 株式会社東芝 | Battery |
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