A loop heat pipe with variable gross suction height and its heat exchange device

Abstract

The invention provides an anti-gravity loop heat pipe with a capillary suction force changeable in height direction. The heat pipe comprises an evaporation end and a condensation end, the evaporationend is located at above the condensation end, a part of the evaporation end is arranged in a fluid rising segment, capillary cores are arranged on at least a part of the evaporation end in the fluid rising segment and distributed in the height direction, and the capillary forces of the capillary cores are gradually increased in the height descending direction. The closer the capillary cores are tothe condensation end, the larger the capillary forces are. In this way, the suction force to a liquid can be further increased by 20% or above at the same cost, and therefore the heat exchange effectis improved.

Description

technical field [0001] The invention relates to a heat pipe and a dew point condensation type air water intake device using the heat pipe. Background technique [0002] In the prior art, heat pipes generally rely on gravity to realize heat pipe circulation, but this kind of heat pipe is only suitable for the situation where the lower part absorbs heat and the upper part releases heat, and it is not suitable for the opposite. Therefore, aiming at this situation, the present invention invents a structure-improved anti-gravity heat pipe by improving the capillary structure. [0003] Data show that the content of vaporous water on the earth is 11.6 times that of liquid fresh water on the surface, but people's utilization rate of gaseous fresh water is not high. The current air water extraction method is mainly to convert the water resources in the form of water vapor or tiny water droplets in the humid air into liquid water, mainly including refrigeration condensation method, a...

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Problems solved by technology

Ye Jitao etc. have proposed and designed a relatively mature solar semiconductor refrigeration water intake device with a regenerator, referring to CN2567274Y, CN10485506A, and carried out numerical simulation and experimental tests to it, but there are two deficiencies in this scheme: on the one hand, the solar battery The conversion efficiency is low and the loss is large, on the other hand, it is restricted by more geographical restrictions and natural conditions, and the structure of the water intake device is complex

[0004] In view of the above problems, the present invention improves on the basis of the previous invention, and provides a new loop heat pipe and its water intake device, which utilizes the water vapor source in the air and the soil cold source to solve the problem of poor fresh water resources and poor power facilities. water problem

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