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Impact jet array phase change cooling device combined with foam metal

A foam metal, impinging jet technology, applied in lighting and heating equipment, indirect heat exchangers, etc., can solve the problem of liquid phase working medium replenishment and limited effect, and achieve the effect of being conducive to independence, good separation, and improving CHF.

Inactive Publication Date: 2020-04-28
JIANGSU UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

There are two main problems in this patent: firstly, the boiling bubbles need to be discharged from the side channel, and secondly, the super-hydrophilic surface is not beneficial to the promotion of CHF, and the effect of supplementing the liquid-phase working medium is also limited

Method used

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  • Impact jet array phase change cooling device combined with foam metal
  • Impact jet array phase change cooling device combined with foam metal
  • Impact jet array phase change cooling device combined with foam metal

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Embodiment Construction

[0018] Such as figure 1 As shown, an impingement jet array phase-change cooling device combined with metal foam includes a heat sink chamber (1), a substrate (2), a working chamber (3), a metal foam capillary core (4), a flow divider (5 ), steam chamber (6), pressure pump (7), condenser (8), dry filter (9) and working medium (10). The heat sink chamber 1, the pressure pump 7, the filter (9) and the dry condenser 8 are sequentially connected through pipes and valves (11) to form a closed system, wherein the liquid outlet of the pressure pump (7) and the inlet of the heat sink chamber 1 Connect, the liquid inlet of condenser (8) is connected with the outlet of heat sink chamber 1.

[0019] Such as figure 1 and figure 2 As shown, the shell of the heat sink chamber (1) is made of copper or aluminum alloy, and the heat sink chamber (1) is arranged on the substrate (2) with a heat source and welded with the substrate 2. Before the welding is completed, the metal foam capillary ...

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Abstract

The invention discloses an impact jet array phase change cooling device combined with foam metal. The impact jet array phase change cooling device combined with the foam metal comprises a heat sink chamber, a substrate with a heat source, a foam metal capillary core, a flow divider, a pressure pump, a condenser, a drying filter and a cooling working medium. The heat sink chamber comprises a lowerworking chamber and an upper steam chamber; the surface of the foam metal capillary core is provided with a plurality of columnar porous ribs, and the flow divider evenly distributes the liquid cooling working medium to a working chamber unit. Aiming at an ultra-high heat flow density device, an electronic chip of the high heat flow density electronic device is cooled by combining the impact jet flow boiling mode with the foam metal capillary core with the fins, on one hand, the sufficiency of liquid supply can be guaranteed, on the other hand, the smooth discharge of steam can be guaranteed,the good separation of gas and liquid phases can be realized, the gas flow structure of jet flow boiling heat exchange is optimized, and the CHF and the cooling performance can be greatly improved.

Description

technical field [0001] The invention relates to a heat dissipation device, in particular to a phase-change cooling device for impinging jet arrays combined with metal foam. Background technique [0002] Due to the heat dissipation requirements of high heat flux devices, phase change cooling devices are in the stage of upgrading. Jet boiling heat transfer has been proven to have a very high heat transfer coefficient, and has received high attention in applications. However, when the heat flux density is extremely high, the heating surface will be covered by a gas film layer, and it is difficult for liquid working fluid to enter the heating surface, thereby limiting its critical heat flux density. A further boost in CHF. [0003] Chinese patent number [CN108418545A], public date 2018.08.17, Luo Xiaoping of South China University of Technology proposed a micro-jet cooling plate device with a porous heat transfer surface. The heat exchange achieves the purpose of cooling, and ...

Claims

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Application Information

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IPC IPC(8): F28D15/04
CPCF28D15/046
Inventor 张东辉曹薇陈一
Owner JIANGSU UNIV OF SCI & TECH
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