Loop heat pipe

Abstract

The invention provides a loop heat pipe which comprises an evaporation collecting pipe body, a condensation collecting pipe body, ascension pipe bodies and returning pipe bodies. The ascension pipe bodies communicate with the evaporation collecting pipe body and the condensation collecting pipe body; the evaporation collecting pipe body is located on the lower portion, and the condensation collecting pipe body is located on the upper portion; a fluid absorbs heat and is evaporated in the evaporation collecting pipe body, enters the condensation collecting pipe body through the ascension pipe bodies and is condensed after being subjected to heat exchange in the condensation collecting pipe body, and the condensed fluid is returned to the evaporation collecting pipe body through the returning pipe bodies; dividing devices are arranged in the ascension pipe bodies; the dividing devices comprises core bodies and shells; the core bodies are arranged in the shells; the shells are fixedly connected with the inner walls of the ascension pipe bodies; the core bodies comprises a plurality of concentric pipes and rib pieces; and the rib pieces are connected with the adjacent concentric pipes. The loop heat pipe is of a novel structure, when vapor-liquid two-phase flow occurs in the ascension pipe bodies, heat transfer is strengthened, meanwhile, vibration of the ascension pipe bodies is weakened, and the noise level is reduced.

Description

technical field [0001] The invention belongs to the field of heat pipes, in particular to a loop 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 satisfactory heat e...

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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