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Heat shielding device for fuel gas guide piece, particularly gas turbine structure piece

A guiding structure and heat shielding technology, which is applied in the cooling of gas turbine devices, jet propulsion devices, turbine/propulsion devices, etc., can solve the problem of high construction cost

Inactive Publication Date: 2003-04-09
SIEMENS AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The multi-shell structure of the heat shield enables a closed cooling fluid circuit, but its construction is expensive

Method used

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  • Heat shielding device for fuel gas guide piece, particularly gas turbine structure piece
  • Heat shielding device for fuel gas guide piece, particularly gas turbine structure piece
  • Heat shielding device for fuel gas guide piece, particularly gas turbine structure piece

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Embodiment Construction

[0034]Fig. 1 has shown a heat shielding device 5 of the present invention, wherein on a support structure 10, be provided with the heat shield 20 of a plurality of adjacent planar coverings; Fig. 2 has shown the structure of a heat shield and its support structure A cross-section, wherein the cross-section is approximately the mid-section of the thermal shield. For example for lining a hot flue gas chamber, such as a combustion chamber 15, rows of heat shields (as shown in FIG. 2 ) are usually arranged adjacent to each other on the support structure 10 .

[0035] The heat shield 5 can be used, for example, as an inner lining of a combustion chamber 15 of a gas turbine in order to prevent damage to the support structure during operation of the gas turbine.

[0036] To reduce the thermal load, the side of the heat shield 20 facing away from the combustion chamber 15 is cooled by means of cold air.

[0037] At least two adjacent heat shields 20a, 20b form a cooling air channel 3...

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PUM

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Abstract

In a heat shield arrangement, in which heat shield elements are arranged next to one another on a carrying structure and are anchored to the carrying structure, there is provision for a cooling-air duct, into which cooling air is fed and which the adjacent heat shield elements communicate with one another, to be formed by at least two adjacent heat shield elements between the carrying structure and the surface of the heat shield elements which faces away from the hot gas. What is achieved thereby is that the individual heat shield elements are interconnected to form continuous cooling-air ducts, with the cooling air introduced into the cooling-air ducts being collected and being led, for example, to a burner. Advantageously, the gaps between the heat shield elements are sealed off by sealing elements.

Description

technical field [0001] The invention relates to a heat shield for hot flue gas guides, in particular gas turbine components such as hot flue gas chambers or combustion chambers. Background technique [0002] The device comprises a plurality of heat shields, which are arranged side by side in a surface-covering manner on a support structure and are held there. [0003] Due to the high temperatures generated in the hot flue chamber, it is necessary to protect the wall structures subjected to the high temperature hot flue gas. For this purpose, for example, the hot gas chamber can be lined with heat shields, which are cooled on the rear side on the side facing the hot gas. [0004] EP 0 224 817 B1 describes a heat shield, in particular for structural parts of gas turbine installations, which consists of a plurality of triangular heat shields. The heat shields are arranged side by side with a certain gap between them on a support structure and are bolted to it. [0005] This ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01D11/00F01D25/24F02C7/18F02C7/28F16J15/06F23M5/08F23R3/00F23R3/42
CPCF23R3/002F23M5/08F23R2900/00012
Inventor 汉斯·梅根
Owner SIEMENS AG