Two-way heat transfer heat pipe

Abstract

The two-way heat transfer heat pipe is composed of a closed shell, a heat exchanger, a phase-change heat medium pump, a liquid distribution device, an electrical control device, a phase-change heat medium, and insulation materials. A low-level heat exchanger and at least one high-level heat exchanger are installed in the closed shell of the heat pipe. The cavity of the closed shell is evacuated and filled with a phase-change heat medium. The installation is wrapped with insulation materials. The inlet of the phase-change medium circulation pump is placed in the phase-change heat medium at the lower end of the closed shell of the bidirectional heat transfer heat pipe. The outlet is connected to the liquid distribution device through a pipeline. The phase-change heat medium pump is controlled by the electrical appliances in the heat pipe. The tube wall of the heat exchanger is controlled by a hair suction material that is convenient for heat conduction, increasing its heat exchange area and liquid storage. The liquid distribution device is installed on at least one high-level heat exchanger, and the phase-change heat medium is The heat pipe wall or the liquid flows down naturally along the pipe. The device can realize the two-way heat transfer of the heat pipe and expand its application field.

Description

Technical field [0001] The invention relates to a bidirectional heat transfer heat pipe, which belongs to the field of heat transfer elements. Background technique [0002] At present, the known heat pipe is a passive heat transfer element with extremely high thermal conductivity, and has a unidirectional heat conduction characteristic. The heat pipe uses the principle of phase change and capillary action, so that its heat transfer efficiency is hundreds to thousands of times higher than that of pure copper of the same material. The heat pipe is a vacuum tube, and the working liquid injected inside is the medium of heat transfer. Because after the inside of the heat pipe is evacuated, liquid is injected before sealing, so the pressure inside the heat pipe is determined by the vapor pressure after the working liquid evaporates. As long as the surface of the heat pipe is heated, the working liquid will evaporate. The temperature and pressure of the steam at the evaporating ...

AI Technical Summary

Problems solved by technology

However, it is precisely because of the above reasons that when there is a difference in height between the evaporation section of the heat pipe and the condensation section of the heat pipe, a one-way heat conduction characteristic occurs, that is, the evaporation section is on the bottom and the condensation section is on the top, otherwise it cannot work.

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