Multichannel structure using metal foam to uniformly distribute fluid flow

A technology of metal foam and fluid flow, which is applied in the field of heat and mass transfer applications, can solve problems such as multi-channel flow unevenness, and achieve good application potential effects

Inactive Publication Date: 2015-01-07
SHANGHAI JIAO TONG UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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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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  • Multichannel structure using metal foam to uniformly distribute fluid flow
  • Multichannel structure using metal foam to uniformly distribute fluid flow
  • Multichannel structure using metal foam to uniformly distribute fluid flow

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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 invention discloses a multichannel structure using metal foam to uniformly distribute fluid flow and relates to a multi-channel structure for a heat exchanger. The multichannel structure using the metal foam to uniformly distribute the fluid flow aims at solving the problem that the flowing between multiple channels is not uniform in the existing heat exchanger. The multichannel structure using the metal foam to uniformly distribute the fluid flow comprises a flow channel inlet, a distribution end, a main channel, a convergence end and a flow channel outlet which are sequentially communicated; a plurality of channel intervals are arranged inside the main channel to separate the main channel into a plurality of sub-channels; the front end of every sub-channel is full of metal foam section which is formed by metal foam; the sub-channel portions which are not full of metal foam are defined to be foam-free sections. The multichannel structure using the metal foam to uniformly distribute the fluid flow is applied to the multichannel heat exchanger in the fields such as the electronic device cooling, the refrigeration low temperature technology, air separation and petrochemical engineering and guarantees the fluid flowing uniformity.

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 Applications(China)
IPC IPC(8): F28F9/22
Inventor 徐会金赵长颖徐治国
Owner SHANGHAI JIAO TONG UNIV
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