A multi-channel structure that evenly distributes fluid flow with metal foam

A metal foam, fluid flow technology, applied in the field of heat and mass transfer applications, can solve the problems of uneven flow in multiple channels, and achieve the effect of good application potential

Inactive Publication Date: 2016-06-29
SHANGHAI JIAOTONG UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to solve the problem of uneven flow between multiple channels in the existing heat exchanger, the present invention further provides a multi-channel structure that uses metal foam to evenly distribute fluid flow

Method used

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  • A multi-channel structure that evenly distributes fluid flow with metal foam
  • A multi-channel structure that evenly distributes fluid flow with metal foam
  • A multi-channel structure that evenly distributes fluid flow with metal foam

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specific Embodiment approach 1

[0024] Specific implementation mode one: combine figure 1 To illustrate, a multi-channel structure that uses metal foam to evenly distribute fluid flow in this embodiment includes a flow channel inlet 1, a distribution end 2, a main channel, a confluence end 6, and a flow channel outlet 7. The flow channel inlet 1, The distribution end 2, the main channel, the confluence end 6 and the flow channel outlet 7 are connected in sequence, and a plurality of channel intervals 5 are set in the main channel to divide the main channel into several sub-channels, and the front end of each sub-channel is filled with metal foam to form a metal foam segment 3 , the part of the sub-channel not filled with metal foam is defined as the foam-free segment 4.

[0025] The present invention maintains flow balance by filling metal foams with equal resistance characteristics at the entrances of each sub-channel.

[0026] The flow direction of the fluid at the channel inlet 1 and the channel outlet ...

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Abstract

The utility model relates to a multi-channel structure for evenly distributing fluid flow by metal foam, which relates to a multi-channel structure of a heat exchanger. The invention aims to solve the problem of uneven flow among multiple channels in the existing heat exchanger. The multi-channel structure of the present invention, which uses metal foam to evenly distribute the fluid flow, is sequentially connected by the flow channel inlet, the distribution end, the main channel, the confluence end and the flow channel outlet, and a plurality of channel intervals are set in the main channel to divide the main channel into several sub-channels , the front end of each subchannel is filled with metal foam to form a metal foam segment, and the part of the subchannel not filled with metal foam is defined as a non-foam segment. The invention is used in multi-channel heat exchangers in the fields of electronic device cooling, refrigeration low-temperature technology, air separation, petrochemical industry and the like to ensure the uniformity of fluid flow.

Description

technical field [0001] The invention relates to a multi-channel structure of a heat exchanger, in particular to a multi-channel structure which uses metal foam to evenly distribute fluid flow, and is used for multi-channel heat exchange in the fields of electronic device cooling, refrigeration cryogenic technology, air separation, petrochemical and other fields The utility model belongs to the technical field of heat and mass transfer application. Background technique [0002] For common heat exchangers in the fields of electronic device cooling, refrigeration cryogenic technology, air separation, petrochemical industry, etc., multiple heat exchangers are usually required in parallel, and the uneven flow distribution of each heat exchange channel will lead to deterioration of the heat transfer performance of the heat exchanger. [0003] Taking refrigeration and air-conditioning systems as an example, the condenser and evaporator are usually composed of upper and lower header...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F28F9/22
Inventor 徐会金赵长颖徐治国
Owner SHANGHAI JIAOTONG UNIV
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