Anti-acceleration loop heat pipe

Abstract

The invention relates to an anti-acceleration loop heat pipe. The anti-acceleration loop heat pipe comprises a double-liquid-storage-device capillary pump, a connecting pipeline, a main condenser, an auxiliary condenser, a thermal compensator and a plurality of evaporation units, fluid channels are designed in the thermal compensator and the evaporation units, the thermal compensator sequentially communicates the evaporation units through the connecting pipeline, the two sides of the capillary pump are each provided with a liquid storage device, the two liquid storage devices are both connected with a capillary core in the capillary pump, a liquid working medium enters the capillary core through the liquid storage devices of the double-liquid-storage-device capillary pump, after the capillary core is heated, capillary force drives the working medium to circulate, the working medium passes through the auxiliary condenser, the thermal compensator, the evaporation units and the main condenser in sequence through the connecting pipeline and finally returns to the liquid storage devices of the double-liquid-storage-device capillary pump, and circulation is completed. According to the anti-acceleration loop heat pipe, the fluid channels in the evaporation units can be designed into two parallel channels, the main backup design requirement of the loop heat pipe can be met, and the reliability of the loop heat pipe is improved.

Description

technical field [0001] The invention relates to an anti-acceleration loop heat pipe, which belongs to the technical field of aerospace thermal control. Background technique [0002] The loop heat pipe is a two-phase fluid circuit system that uses capillary force to drive the circulation of the working fluid to transfer heat. It has the advantages of small thermal resistance, large heat transfer, long heat transfer distance, and no moving parts. One of the thermal control products. [0003] As a modified product of the traditional loop heat pipe, the capillary pump evaporation unit component realizes the separation of the capillary pump and the heat source, and carries heat by coupling the evaporation component (heat source cold plate component) with the heat source. The capillary pump evaporation unit assembly contains multiple evaporation units, which are connected in series / parallel by flexible pipes. The advantage of high precision. This makes the advantages of the loo...

AI Technical Summary

Problems solved by technology

[0004] Usually, the piping of the single-reservoir capillary pump evaporation unit assembly adopts a serpentine structure layout, but when the capillary pump evaporation unit assembly suddenly receives an acceleration in a certain direction (such as the acceleration generated when the aircraft accelerates and decelerates or turns, etc.), the capillary pump And the liquid in the evaporation unit may stop flowing or flow back due to inertia, resulting in the interruption of the working medium in the evaporation unit, the capillary core in the capillary pump will dry up, and the loop heat pipe will stop running, causing the temperature of the evaporation unit to exceed the target

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