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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 heat shield elements cannot be sufficiently cooled by the internal cooling air ducts

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

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Embodiment Construction

[0035] figure 1 Shown is a gas turbine 21 which is partially shown in longitudinal section. The gas turbine 21 has a compressor, an annular combustor 20 with a plurality of burners for fuel in liquid or gaseous form, and for driving the compressor and figure 1 The generator turbine is not shown. Here, the combustion chamber wall is covered with the heat shielding element 1 , or the heat shielding element 1 is mounted on a support structure 22 on the combustion chamber wall. During operation of the gas turbine 21, air is drawn in from the environment. In the compressor, the air is compressed and thus partly heated. A small part of the air is taken from the compressor and passed into the heat shield element 1 as a cooling medium, the majority of the air is sent to the burner for combustion. In the combustor 20, this majority of the air from the compressor is combined with fuel in liquid or gaseous form and combusted. The hot gases that drive the gas turbine 21 are generated...

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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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