Axial round tube type silk net heat-tube using cupric oxide nano particle suspending liquid as working medium

Abstract

The invention relates to an axial circular pipe type screen heat pipe taking copper oxide nanoparticle suspension as working substance, which consists of an evaporation section, a thermal insulation section and a cooling section, wherein, the thermal insulation section is externally covered with a Teflon stick to make thermal insulation, the cooling section is externally welded with a cooling water jacket, the inner wall of the evaporation section is provided with a screen liquid-absorbing core structure, the working substance filled inside the screen liquid-absorbing core structure is copper oxide nanoparticle suspension, and the fluid filling rate is 40 to 60 percent of the volume of the evaporation section. The copper oxide nanoparticle suspension is the mixing liquid of de-ionized water and copper oxide nanoparticles, and the mass concentration of the copper oxide nanoparticles in the suspension is between 0.5 and 2 percent. During the use, the element which needs to make a heat radiation is pasted on the lower end of the heat pipe, the heat of the element which needs to make a heat radiation is transferred to the cooling section depend on the evaporation heat transfer of the working substance inside the grooved heat pipe, the working substance in the cooling section condenses the heat transfer to transfer the heat into condensed water. After the invention uses the water based copper oxide nanoparticle suspension as the working substance, the heat exchange performance is improved, and the total heat resistance of the heat pipe is decreased.

Description

technical field [0001] The invention relates to an axial circular tube type wire mesh heat pipe using copper oxide nano particle suspension as a working medium, belonging to the field of heat exchange technology and cooling of electronic components. Background technique [0002] Round tube wire mesh heat pipe is a high-efficiency heat transfer element, which is widely used in today's energy field and power electronics thermal management field. The circular tube type wire mesh heat pipe has simple structure, convenient manufacturing and processing, low production cost and easy industrialization. The circular tube type wire mesh heat pipe realizes the heat transfer through the phase change heat of the internal working fluid, the heat transfer rate is fast, the efficiency is high, the thermal resistance is small, and the wire mesh can provide a strong capillary force, so that the heat pipe has a large operating power . [0003] Adding various metal or metal oxide nanoparticle...

AI Technical Summary

Problems solved by technology

[0004] So far, no one has proposed to use copper oxide nanoparticle suspension as the working fluid in the circular tube-type wire mesh heat pipe to enhance the heat transfer performance of the heat pipe.

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