Layer heat exchanger for high temperatures

Inactive Publication Date: 2012-06-07
BEHR GMBH & CO KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Benefits of technology

[0009]It is therefore an object of the present invention to design and construct a layer heat exchanger in such a way that it withstands high temperatures, particularly stress caused by cyclical temperature changes to about 950° C., so that a suff

Problems solved by technology

Heat exchangers for SOFCs are used, for example, for heating process air and are supplied with hot combustion gases within a temperature range of about 950° C. This application of a greatly and rapidly changing temperature leads in the heat exchanger structure to thermomechanical stress, which leads to problems with respect to the tightness of the layer block in

Method used

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  • Layer heat exchanger for high temperatures
  • Layer heat exchanger for high temperatures

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Example

[0029]FIG. 1 shows a layer heat exchanger 1 in an exploded view. Such a layer heat exchanger 1 is known from the aforementioned state of the art with respect to its structure. A partially shown layer block 2, through which two media can flow in crossflow, is arranged in the interior of layer heat exchanger 1. Layer block 2 is housed in four box-like housing sections 3, 4, 5, 6, which in turn have connecting pieces 3a, 4a, 5a, 6a for supplying and removing the media flowing through layer block 2. The four box-like housing sections 3, 4, 5, 6 including the connecting pieces 3a, 4a, 5a, 6a are together also called a housing 7 below. Layer block 2 and housing 7 are connected together by twelve welding seams, of which welding seams 8a, 8b, 8c are designated by way of example.

[0030]In FIG. 1a, layer block 2 according to FIG. 1 is shown schematically by a bottom cover plate 9 and a top cover plate 10 and by two layer plates 11, 12. Layer plates 11, 12, also called layer sheets 11, 12, are ...

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Abstract

A layer heat exchanger for high temperatures is provided that includes a layer block having layer plates and cover plates and a housing that accommodates the layer block. The housing has a high heat resistance, combined with a high stiffness, and the layer block has a core that is soft and tough relative to the housing.

Description

[0001]This nonprovisional application is a continuation of International Application No. PCT / EP2010 / 057317, which was filed on May 27, 2010, and which claims priority to German Patent Application No. DE 10 2009 022 984.21, which was filed in Germany on May 28, 2009, and which are both herein incorporated by reference.BACKGROUND OF THE INVENTION[0002]1. Field of the Invention[0003]The invention relates to a layer heat exchanger for high temperatures.[0004]2. Description of the Background Art[0005]Layer heat exchangers are known from the conventional art and include a layer block, which is made up of stacked layer plates and cover plates and is used for the heat exchange between two media, and a housing, which accommodates and seals the layer block and has connections for supplying and removing the media. Layer heat exchangers of this type are notable for a high specific heat transfer performance, based on their volume.[0006]German Offenlegungsschrift No. DE 103 28 274 A1 of the appli...

Claims

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Application Information

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IPC IPC(8): F28F3/08
CPCF28D9/0037F28F9/00F28F3/08F28F21/083F28F21/084F28F2265/26
Inventor ANGERMANN, HANS-HEINRICH
Owner BEHR GMBH & CO KG
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