Heat exchanger with variable numbers of communicating holes

A technology of heat exchangers and communication holes, which is applied in the field of shell-and-tube heat exchangers, can solve problems such as uneven internal pressure, and achieve the effects of increasing service life, improving heat exchange efficiency, and achieving the best heat exchange effect

Active Publication Date: 2016-06-01
南通市通州区宏峰机械有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of the above problems, the present invention provides a new shell-and-tube heat exchanger, so as to solve the problem of uneven internal pressure in the case of heat exchange by heat exchange tubes

Method used

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  • Heat exchanger with variable numbers of communicating holes
  • Heat exchanger with variable numbers of communicating holes
  • Heat exchanger with variable numbers of communicating holes

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Embodiment Construction

[0033] The specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0034] In this article, if there is no special explanation, when it comes to formulas, " / " means division, and "×" and "*" mean multiplication.

[0035] a heat exchanger such as figure 1 As shown, the heat exchanger includes an upper header 8 and a lower header 9 and heat exchange tubes arranged between the upper and lower headers 8 and 9 . Fins 11 are arranged between the heat exchange tubes. The heat exchanger can be widely used such as automobile heat exchanger, air conditioner heat exchanger and so on.

[0036] Such as figure 2 As shown, the heat exchange tubes are flat heat exchange tubes, including flat tubes 1 and fins 7, the flat tubes 1 include tube walls 3 and side walls 12 parallel to each other, and the side walls 12 connect parallel tube walls 2, the fluid channel 2 is formed between the side wall 12 and the parallel tube...

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Abstract

The invention provides a heat exchanger. The heat exchanger comprises two headers and heat exchange pipes arranged between two headers. The heat exchange pipes are flat heat exchange pipes. Fins are arranged in the flat pipes. The fins include inclined parts. A fluid channel is divided into a plurality of small channels through the inclined parts. The numbers of the communicating holes distributed in the different flat heat exchange pipes are different, and the longer the distances of the flat heat exchange pipes away from an inlet pipe are, the larger the numbers of the communicating holes distributed in the flat heat exchange pipes are. By means of the heat exchanger with the variable numbers of the communicating holes, due to the fact that the numbers of the communicating holes are set to be changed along with the distances of the heat exchange pipes away from the inlet pipe, fluid flows into the heat exchange pipes which are low in flowing resistance and is away from the inlet pipe, the fluid is evenly distributed in the heat exchange pipes, the heat exchange efficiency is improved, and the service life is prolonged.

Description

technical field [0001] The invention relates to a heat exchanger, in particular to a shell-and-tube heat exchanger. Background technique [0002] Flat tubes have been widely used in recent years in automotive air conditioning units and in residential or commercial air conditioning heat exchangers. This kind of flat tube is provided with multiple small channels inside, and when in use, the heat exchange fluid flows through the multiple channels in the flat tube. Because the heat exchange area of ​​the flat tube is large, the heat exchange effect can be greatly improved. [0003] In the prior art, there is a problem of uneven flow distribution caused by the distance between the heat exchange tube and the inlet tube. For example, the closer the distance to the inlet tube, the more fluid flow in the heat exchange tube; Fluid flow is less. In the prior art, the flow distribution or pressure distribution components are installed in the header to make the flow distribution in th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F28D1/053F28F1/42
CPCF28D1/05333F28D1/05383F28F1/42F28F2215/08
Inventor 赵炜陈岩
Owner 南通市通州区宏峰机械有限公司
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