Loop heat pipe changing in height direction of annular separation device

Abstract

The invention provides a heat pipe which comprises an evaporation header, a condensation header, ascending pipes and a backflow pipe. The ascending pipes and the evaporation header communicate with the condensation header. The evaporation header is located at the lower portion, and the condensation header is located at the upper portion. Fluid absorbs heat and is evaporated in the evaporation header and then enters the condensation header from the ascending pipes. The fluid exchanges heat in the condensation header and is then condensed, and the condensed fluid goes back to the evaporation header through the backflow pipe. Flow stabilizing devices are arranged in the ascending pipes, and the multiple flow stabilizing devices are arranged in the same ascending pipe. The length of the flow stabilizing devices is increased gradually in the height direction of the ascending pipes. By means of the heat pipe, due to the length changing of the flow stabilizing devices, when gas-liquid two phase flow in the ascending pipes, heat transfer is strengthened, meanwhile, vibration of the ascending pipes is weakened, and the noise level is lowered.

Description

technical field [0001] The invention belongs to the field of heat pipes, in particular to a heat exchange heat pipe. Background technique [0002] Heat pipe technology is a heat transfer element called "heat pipe" invented by George Grover of Los Alamos National Laboratory in the United States in 1963. It makes full use of the principle of heat conduction and phase change medium. The rapid heat transfer properties of the heat pipe quickly transfer the heat of the heating object to the heat source, and its thermal conductivity exceeds that of any known metal. [0003] Heat pipe technology was widely used in aerospace, military and other industries before. Since it was introduced into the radiator manufacturing industry, people have changed the traditional radiator design ideas and got rid of the single heat dissipation mode that only relies on high air volume motors to obtain better heat dissipation. The use of heat pipe technology enables the radiator to obtain a satisfacto...

AI Technical Summary

Problems solved by technology

However, it was found during the operation of this device that the space A formed between the three pipes is relatively small because the pipes are tightly combined, because the space A is formed by the convex arc of the three pipes, so most of the space A Narrowness will make it difficult for the fluid to enter and pass through, resulting in a short circuit of the fluid, which affects the heat transfer of the fluid and cannot play a good role in stabilizing the flow

Simultaneously because the many tubes of above-mentioned structure are combined together, manufacture difficulty

[0007] In view of the above problems, the present invention has been improved on the basis of the previous invention, and a new heat pipe is provided, thereby solving the problems of low heat transfer coefficient and uneven heat transfer in the case of heat pipe heat exchange

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