Heat shield element and method for the production thereof

A heat shielding and component technology, applied in the field of heat shielding components, can solve the problem that the edge area of ​​the heat shielding component cannot be sufficiently cooled by the cooling air channel, and achieve the effects of reducing the amount of cooling air, abandoning impact cooling, and reducing emissions

Active Publication Date: 2017-08-18
SIEMENS ENERGY GLOBAL GMBH & CO KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, it has proven to be a disadvantage that the edge regions of the he

Method used

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  • Heat shield element and method for the production thereof
  • Heat shield element and method for the production thereof
  • Heat shield element and method for the production thereof

Examples

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Example Embodiment

[0035] figure 1 A gas turbine 21 is shown, which is partially shown in cross-section in the longitudinal direction. The gas turbine 21 has a compressor, an annular combustion chamber 20 having a plurality of combustors for liquid or gaseous fuel, and for driving the compressor and figure 1 Not shown in the generator turbine. Here, a heat shield element 1 is laid on the wall of the combustion chamber, or the heat shield element 1 is mounted on a support structure 22 on the wall of the combustion chamber. When the gas turbine 21 is operating, air is drawn in from the environment. In the compressor, the air is compressed and thereby partially heated. A small part of the air is taken out of the compressor and delivered to the heat shield element 1 as a cooling medium, and most of the air is delivered to the combustor for combustion. In the combustion chamber 20, the majority of the air from the compressor is combined and combusted with fuel in liquid or gas form. Here, hot gas f...

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Abstract

The invention relates to a heat shield element (1) comprising a wall (2) having a hot side (3) and an opposing cold side (4), a peripheral edge (5) having an inner side (6) and an outer side (7), and a securing device (8) arranged substantially in the middle of the cold side (4) of the wall (2), said securing device extending substantially perpendicularly away from the wall (2), wherein cooling channels (9) are arranged in the securing device (8), wall (2) and edge (5), extending over at least two of the three. The invention also relates to a combustion chamber (20) and a gas turbine plant (24). The invention further relates to a method for producing a heat shield element (1) of this type.

Description

technical field [0001] The invention relates to a heat shielding element, which is used in particular for laying combustion chamber walls with integrated cooling air channels according to the preamble of claim 1 . Background technique [0002] In view of the ever-increasing efficiency of gas turbines, the main attempt is to achieve the highest possible hot gas temperature and possibly also an increased mass flow, while at the same time trying to save air for cooling the components to which the hot gas is applied. That is, components such as heat shields in the combustion chamber should be able to withstand higher temperatures with a low consumption of cooling air. The difficulty is that the blanks of metallic heat shield elements, which are usually produced by casting methods, are often either relatively expensive or unsatisfactory with regard to quality due to the variety of heat shield elements of different shapes for annular combustion chambers and the high demands placed...

Claims

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Application Information

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IPC IPC(8): F23M5/08F23R3/00F23R3/60
CPCF23R3/002F23M5/085F23M2900/05004F23R3/005F23R3/60F23R2900/03043
Inventor T·豪泽A·克罗伊策P·拉普S·皮格特S·普尔施克
Owner SIEMENS ENERGY GLOBAL GMBH & CO KG
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