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Multi-impact composite structure for cooling walls

A technology of composite structure and cooling fluid, which is applied in the direction of supporting elements of blades, combustion methods, manufacturing converters, etc., can solve problems such as incapable of precision manufacturing, and achieve the effect of optimizing pressure loss

Inactive Publication Date: 2016-06-08
SIEMENS AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The problem is that conventionally said porous structure 101 cannot be fabricated with sufficient precision

Method used

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  • Multi-impact composite structure for cooling walls
  • Multi-impact composite structure for cooling walls
  • Multi-impact composite structure for cooling walls

Examples

Experimental program
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Embodiment Construction

[0026] as available from Figures 1 to 3 It can be seen from the figure that the multi-impact composite structure has a plurality of orifice layers 2 in which a plurality of through-holes 3 are arranged in the form of a grid. The cooling fluid flows through the through-holes 2 , which thus each have an inflow side 4 and an outflow side 5 .

[0027] In addition, the multi-impact composite structure 1 has a plurality of web layers 6, which are respectively arranged between two adjacent perforated plate layers 2, so that the multi-impact composite structure 1 has Sandwich structure composed of layer 2 and tab layer 4. The web layer 6 is formed from a plurality of webs 7 which, like the through-holes 3 , are likewise arranged in a grid-like manner and with their longitudinal direction perpendicular to the perforated plate layer 2 . Each web 7 thus bridges the distance between two adjacent orifice layers 2 , so that heat can be transferred from one orifice layer 2 to the other vi...

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Abstract

The multi-impingement composite (1) for cooling a wall using a cooling liquid, comprises perforated sheet layers (2) with several passage holes (3) distributedly arranged over a surface of the perforated sheet layers and formed as perforated sheets, and web layers (6) that are alternatively stacked with the perforated sheet layers and have several webs (7), where the multi-impingement composite is contactable with a surface of the wall in a flat and heat-conducting manner and the webs are distributedly arranged over the surface of the perforated sheet layers. The multi-impingement composite (1) for cooling a wall using a cooling liquid, comprises perforated sheet layers (2) with several passage holes (3) distributedly arranged over a surface of the perforated sheet layers and formed as perforated sheets, and web layers (6) that are alternatively stacked with the perforated sheet layers and have several webs (7), where the multi-impingement composite is contactable with a surface of the wall in a flat and heat-conducting manner and the webs are distributedly arranged over the surface of the perforated sheet layers and bridge over the perforated sheet layers. Each web of the web layer is arranged in line with one of the webs of the other web layers. Each passage hole of the perforated sheet layers is displaceably arranged to the passage holes of the adjacent perforated sheet layers, so that when the multi-impingement composite is pressurized on its flat side with the cooling liquid, the cooling liquid flows through the perforated sheets and flushes through an intermediate space located between the webs and the perforated sheet layers, where the heat stream derived from the wall is supplyable into the webs with the cooling liquid. The longitudinal directions of the webs extend vertical to the perforated sheet layers. The webs are distributedly arranged in a rectangular raster permanently over the surface of the perforated sheet layers. The passage holes are arranged in same distances to four direct adjacent webs and the intermediate space formed between the four webs has one of the passage holes in one perforated sheet layers or in the other perforated sheet layer, so that the passage holes are gaps. The webs have a circular or lancet-shaped cross-section with two opposite blunt edges and two opposite pointed edges. The passage holes of the perforated sheet layer, through which the cooling liquid flows out into the intermediate space formed between the four webs when the multi-impingement composite is pressurized on its flat side with the cooling liquid, lie on lines crossing the pointed edges. The passage holes of the perforated sheet layer, through which the cooling liquid flows-in into the intermediate space formed between the four webs when the multi-impingement composite is pressurized on its flat side with the cooling liquid, lie on lines crossing the blunt edges. The perforated sheet layers are rounded-off at the passage holes. An independent claim is included for a method for producing a multi-impingement composite.

Description

technical field [0001] The invention relates to a multi-impact composite structure for cooling a wall, a wall with a multi-impact composite structure and a method for producing the multi-impact composite structure. Background technique [0002] In internal combustion engines, in particular gas turbines, high operating temperatures exist, so that the hot gas-conducting components are subjected to high thermal loads. If the hot gas reaches a temperature above the maximum permissible operating temperature of the hot gas-carrying component during operation of the gas turbine, the hot gas-carrying component should be cooled so that it is not damaged. Conventionally, in gas turbines, the cooling air branched off from the compressor of the gas turbine is used to cool the hot gas-carrying components. As a result, the efficiency of the gas turbine is reduced, so that the cooling air consumption should be as low as possible, so that the cooling air should be used as efficiently as po...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F01D25/12
CPCB22F7/064B22F7/08C21C5/4646F01D5/183F01D5/184F05D2250/185F23M5/00F23R3/002F23R2900/03044F28D2021/0078F28F3/02
Inventor A·赫塞尔豪斯
Owner SIEMENS AG
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