Heat dissipation system based on pump-driven capillary phase change loop

Abstract

The invention discloses a heat dissipation system based on a pump drive capillary phase change loop. The heat dissipation system comprises a first liquid pipeline, a second liquid pipeline, a steam pipeline, an ejector and an evaporator. The first end of the second liquid pipeline is communicated with the first end of the first liquid pipeline through the ejector, and the second end of the secondliquid pipeline is communicated with the second end of the first liquid pipeline through the evaporator; the first end of the steam pipeline is communicated with the first end of the first liquid pipeline through an ejector; the second end of the steam pipeline is communicated with the second end of the first liquid pipeline through the evaporator; an active heat dissipation technology and a passive heat dissipation technology are combined; the heat exchange capability is improved by utilizing phase change latent heat of the working medium; the heat dissipation system meets the heat dissipation requirement of high heat flow density, has high heat transfer efficiency, improves the power of electric power and electronic devices, improves the working efficiency of the electric power and the electronic devices. The defects that a loop heat pipe and a capillary pump loop are small in transmission distance, difficult to start and the like are overcome, and the heat dissipation system adaptsto heat dissipation of the electronic devices with different heat flow densities.

Description

technical field [0001] The invention relates to the technical field of thermal control, in particular to a heat dissipation system based on a pump-driven capillary phase change circuit. Background technique [0002] At present, the traditional cooling methods mainly include natural convection cooling, forced convection cooling, liquid cooling, and refrigeration system cooling. Natural convection cooling uses natural air convection and radiation to dissipate heat, with limited cooling capacity, and is mainly used for cooling electronic devices with small heat generation. Forced convection cooling removes heat from electronics by forcing air through it with a fan. Natural convection and forced convection cooling mainly increase the heat transfer coefficient by increasing the heat dissipation area and increasing the turbulence. The liquid cooling and heat dissipation method uses power equipment such as pumps to drive water, oil and other coolants to circulate in the cooling s...

AI Technical Summary

Problems solved by technology

For this reason, the object of the present invention is to propose a heat dissipation system based on a pump-driven capillary phase change circuit, which combines active heat dissipation technology and passive heat dissipation technology, and uses the phase change latent heat of the working fluid to improve heat transfer capacity and meet high heat flux density It has high heat transfer efficiency, which not only increases the power of power electronic devices, but also greatly improves the working efficiency of electronic devices, and solves the shortcomings of loop heat pipes and capillary pump loops such as small transmission distance and difficulty in starting. The heat dissipation of electronic devices is of great significance. It is an improvement and extension of loop heat pipe technology, and it is suitable for the heat dissipation of electronic devices with different heat flux densities.

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