Composite loop heat pipe and composite loop heat pipe heat exchange assembly

Abstract

The invention relates to a composite loop heat pipe and a composite loop heat pipe heat exchange assembly. The composite loop heat pipe comprises a header box A, a header box B, evaporation channels and condensation channels. One ends of the evaporation channels and one ends of the condensation channels are connected with the header box A, and the other ends of the evaporation channels and the other ends of the condensation channels are connected with the header box B. The header box A, the header box B, the evaporation channels and the condensation channels form a loop, and a composite loop heat pipe structure is formed. The internal channels of the composite loop heat pipe are in a vacuum or negative-pressure state, and a working medium playing a role of phase-change heat transfer is sealed in the internal channels of the composite loop heat pipe. Fins or heat source channels or cold source channels are attached between the adjacent evaporation channels or the adjacent condensation channels of the composite loop heat pipe to form the heat exchange assembly. The heat exchange assembly automatically achieves the gas-gas heat exchange or gas-liquid heat exchange effect. The composite loop heat pipe and the composite loop heat pipe heat exchange assembly have the advantages of high heat exchange efficiency, large heat flux density, high heat exchange speed, high pressure bearingcapacity, light weight, stable structure, good frost resistance, safe operation and the like and belong to novel heat exchange elements.

Description

technical field [0001] The invention relates to the technical field of heat exchange and heat pipes, in particular to a composite loop heat pipe and a heat exchange assembly thereof. Background technique [0002] At present, heat pipes and heat pipe heat exchangers are widely used in industrial applications such as heat transfer and heat dissipation due to their high heat transfer efficiency, fast heat transfer speed, high pressure bearing, and energy saving. However, traditional heat pipes and heat pipe heat exchangers There are shortcomings such as insufficient heat transfer capacity, large volume, and complicated manufacturing process. The plate-fin heat exchanger is integrally brazed with aluminum plate and aluminum fins. It is small in size, light in weight, and high in heat transfer efficiency. However, it has disadvantages such as weak pressure bearing capacity and easy leakage. Some people in the industry try to use a manufacturing process similar to plate-fin heat ...

AI Technical Summary

Problems solved by technology

[0002] At present, heat pipes and heat pipe heat exchangers are widely used in industrial applications such as heat transfer and heat dissipation due to their high heat transfer efficiency, fast heat transfer speed, high pressure bearing, and energy saving. However, traditional heat pipes and heat pipe heat exchangers There are shortcomings such as insufficient heat transfer capacity, large volume, and complicated manufacturing process.

The plate-fin heat exchanger is integrally brazed with aluminum plate and aluminum fins. It is small in size, light in weight, and high in heat transfer efficiency. However, it has disadvantages such as weak pressure bearing capacity and easy leakage.

Some people in the industry try to make heat pipe heat exchangers using a manufacturing process similar to plate-fin heat exchangers. Most of them are connected at the lower end, which has shortcomings such as insufficient heat transfer capacity, small volume heat capacity, and the working position is affected by gravity. How to improve this It is a technical difficulty to be solved urgently in the industry to improve the heat transfer capacity of the heat exchanger and make its working orientation not affected by gravity.

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