Capillary core performance testing device for heat pipe and testing method thereof

Abstract

The invention relates to a capillary core performance testing device for a heat pipe and a testing method thereof and belongs to the technical field of heat pipes. The capillary core performance testing device comprises a to-be-tested capillary core (1), a weight testing system (2), a heating system (3), a working medium container (4) and a working medium (5), wherein one end of the to-be-tested capillary core (1) stretches into the working medium container (4) and is contacted with the working medium (5); the other end of the to-be-tested capillary core (1) is heated by adopting the heating system (3); when heated to a phase transformation point of the working medium, the working medium at the heated part is subjected to phase transformation and becomes vapor to diffuse outside, the capillary core (1) continuously sucks the working medium from the interior of the working medium container to supplement the heated part by virtue of a capillary action, and the suction rate is measured bythe weight testing system (2). The device disclosed by the invention is not provided with a condenser, a vapor line, a liquid pipeline and the like, the real-time working medium suction rate of the capillary core is tested by adopting a precision electronic balance, the equipment is simple and easy to operate, and the test results can really reflect the performance of the capillary core.

Description

technical field [0001] The invention relates to a heat pipe capillary core performance testing device and a testing method thereof, belonging to the technical field of heat pipes. Background technique [0002] Heat pipe is a high-efficiency heat transfer device that uses the principle of phase change to transfer heat. It has the advantages of small heat transfer temperature difference, high heat transfer performance, long-distance heat transfer and good temperature control characteristics. It is gradually being used in various space and ground applications. thermal control field. [0003] There are various types of heat pipes, which can be divided into heat pipes with capillary core (Wicked Heat Pipe) and heat pipes without capillary core (Wickless Heat Pipe) from the perspective of whether there is a capillary core inside the heat pipe. For a heat pipe with a capillary core, the capillary core is a key component of the entire heat pipe, which provides the driving force for...

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide a novel heat pipe capillary core test device and its test method for the existing heat pipe performance test which is affected by many factors and is not conducive to truly reflecting the actual performance of the capillary core. Unaffected by factors such as condensers, vapor lines, and condensate lines, thus more faithfully reflecting the performance of capillary wicks

Images