An automatic multi-heat pipe vacuum quantitative working medium charging system

Abstract

The invention discloses an automatic multi-heat pipe vacuum quantitative working medium charging system, comprising an automatic metering pump, a pipeline and its control system, a temperature control device, a pressure measurement system, a vacuum pumping system, and an inflatable sealing ring system; the automatic metering pump and the The four-way pipe is connected, and there is an evenly wound electric heating wire on the outside of each connected pipeline of the four-way pipe; the left side of the four-way pipe is connected to the pressure measuring system, the right side is connected to the vacuum system, the pipeline and its control system It includes ordinary pipelines, thick pipelines, three-way tubes, four-way tubes and solenoid valves; the lower part of the four-way tube is connected to the heat pipe located in the cooling device through the pipeline and its control system; the invention can realize the accurate quantification of the working fluid of the heat pipe Filling (deviation 0.5% to 2%); quantitative filling of multiple heat pipes can be realized, saving time and cost; the ultimate vacuum degree of heat pipes can reach 10 ‑4 Pa; the functions of each part of the system are controlled by the on-off of the solenoid valve, which is easy to realize the automatic assembly line operation.

Description

technical field [0001] The invention relates to an automatic multi-heat pipe vacuum quantitative working medium charging system, which belongs to the field of energy-saving heat exchangers. Background technique [0002] A heat pipe is an efficient heat transfer element that utilizes phase change heat transfer. Now, the application of heat pipes has extended from aerospace to industry and civil use, and plays an irreplaceable role in satellite heat dissipation, solar energy equipment, plateau permafrost thawing, waste heat recovery, and heat dissipation of electronic components. When people use heat pipes, they also put forward higher requirements for the performance of heat pipes. The main factors affecting the performance of the heat pipe are: the shape of the heat pipe, the structure of the liquid absorbing core, the type of working medium, the non-condensable gas, the filling rate, and the vacuum environment for preparing the heat pipe. Existing patents on heat pipes ma...

AI Technical Summary

Problems solved by technology

The vacuum degassing method not only affects the residual amount of air in the heat pipe, but also affects the degree of exhaustion of the gas adsorbed on the metal surface of the heat pipe inner wall.

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