JPS6163401U

JPS6163401U -

Info

Publication number: JPS6163401U
Application number: JP9071184U
Authority: JP
Priority date: 1984-06-20
Filing date: 1984-06-20
Publication date: 1986-04-30

Description

[Brief explanation of drawings]

第１図ａは従来の冷却法の部材の構成・流動状
態を示す断面図、第１図ｂはその熱伝達率分布図
、第２図は本考案をガスタービンの冷却翼に適用
した一実施例を示す断面図、第３図ａは同じく部
材の構成・流動状態を示す断面図、第３図ｂはそ
の平面図、第３図ｃはその熱伝達率分布図、第４
図ａは上下面に多数の突起を設置した長方形断面
流路の断面図、第４図ｂはその平面図、第５図ａ
は本考案の第２の実施例を示す断面図、第５図ｂ
はその平面図、第６図ａは本考案の第３の実施例
を示す断面図、第６図ｂはその平面図、第７図ａ
は本考案の第４の実施例を示す断面図、第７図ｂ
はその平面図、第８図ａは本考案の第５の実施例
を示す断面図、第８図ｂはその平面図である。１…冷却すべき部材、２…被冷却表面、３…多
孔板、４…噴出孔、５…冷却流体、６…（壁噴流
の）層、７…突起、８…排出流路。 Figure 1a is a cross-sectional view showing the structure and flow state of components in the conventional cooling method, Figure 1b is a heat transfer coefficient distribution diagram, and Figure 2 is an example of an implementation in which the present invention is applied to a cooling blade of a gas turbine. A sectional view showing an example, FIG. 3a is a sectional view similarly showing the structure and flow state of the member, FIG.
Figure a is a cross-sectional view of a rectangular cross-sectional channel with many protrusions installed on the upper and lower surfaces, Figure 4 b is its plan view, and Figure 5 a
is a sectional view showing the second embodiment of the present invention, FIG. 5b
is a plan view thereof, FIG. 6a is a sectional view showing the third embodiment of the present invention, FIG. 6b is a plan view thereof, and FIG. 7a is a sectional view showing the third embodiment of the present invention.
is a sectional view showing the fourth embodiment of the present invention, FIG. 7b
8A is a sectional view showing a fifth embodiment of the present invention, and FIG. 8B is a plan view thereof. DESCRIPTION OF SYMBOLS 1... Member to be cooled, 2... Surface to be cooled, 3... Perforated plate, 4... Spout hole, 5... Cooling fluid, 6... Layer (of wall jet), 7... Protrusion, 8... Discharge channel.

Claims

[Scope of utility model registration request]

A perforated plate is provided at a distance from the surface to be cooled, a cooling fluid is ejected from a large number of ejection holes in the perforated plate toward the surface to be cooled, and a group of jets of the cooling fluid collide with the surface to be cooled. Impingement cooling characterized in that a number of projections having a height lower than the distance from the perforated plate are installed on the surface to be cooled in an area excluding the area around the stagnation point of the jet group. structure.