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brazed heat exchanger

A heat exchanger and brazing technology, applied in the direction of heat exchanger fixing, heat exchange equipment, indirect heat exchanger, etc., can solve problems such as large cost and achieve the effect of good heat exchange performance

Active Publication Date: 2019-09-13
MODINE MFG CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

With such and similar measures, it has been found that there is a disadvantage that when one wants to braze generally differently designed products in a brazing furnace, the flow guides need to be designed for different products, thereby causing great expense

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0026] according to figure 1 , the brazed heat exchanger—which in this embodiment is a condenser—consists of a block 1 consisting of flat tubes 2 and fins 3 not shown between the flat tubes 2 . At opposite ends of the flat tubes 2, a header 4 is fixed in each case. The collecting pipe 4 on the left in the figure is connected with an additional pipe 5, which is arranged in parallel with the collecting pipe with a small gap. Since, as already mentioned, a condenser is involved, the additional pipe 5 will subsequently be referred to as the desiccant cylinder 5 .

[0027] The desiccant cylinder 5 includes a protruding connecting piece 51 arranged in a line to achieve the desired connection. There are invisible openings (57, Figure 5 ), through which refrigerant can enter the desiccant cylinder 5 from the header 4 and exit from the desiccant cylinder 5 through another connection 51 .

[0028] according to figure 1 , the visible outer surface 50 of the desiccant cylinder 5 is...

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PUM

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Abstract

The present invention involves a heat exchanger that is welded, including: a block (1), which is composed of a flat pipe (2) and a heat sink (3);End's collecting flow pipe (4); and additional pipe (5), which is connected to one of the flow pipes (4).In order to reduce the welding error, according to the present invention, the exterior pipe (5) and / or the flow pipe (4) outer surface (50,40) at least a considerable number of parts are constructed to provide an extended surface.

Description

technical field [0001] The present invention relates to a brazed heat exchanger comprising: a block made of flat tubes and fins; headers arranged on opposite ends of the flat tubes; and additional tubes connected to the headers. A connection in the tube. Background technique [0002] Such brazed heat exchangers are known from EP1147930B1 and many other publications, in the case of such a heat exchanger as a condenser, which is used as an integral part of air conditioning equipment, for example by cold air flow, The circulating refrigerant is condensed cyclically. [0003] The brazing is carried out in a brazing furnace into which the aforementioned heat exchangers are introduced after corresponding pre-assembly and pre-treatment and, usually in a single brazing operation production. That is, all connections are brazed in said one brazing operation. [0004] Usually there are some brazing technical problems. The reasons for this are varied and often difficult to pinpoint...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F25B39/04F28F9/02
CPCF25B39/04F28F9/02F25B2339/04F25B2500/09F28F9/0243F28F9/0251F28D1/05366F28F1/06F28F1/08F28F2275/04F28F1/02
Inventor D·库鲍赫J·蔡林格
Owner MODINE MFG CO