Controllable plate type pulsating heat pipe heat transfer system with external oscillating source

Abstract

The invention discloses a controllable plate type pulsating heat pipe heat transfer system with an external oscillating source. The system comprises a first cover plate and a second cover plate which are oppositely arranged, a working medium channel is processed between the first cover plate and the second cover plate, and working media which are alternately distributed in a steam plug state and a liquid plug state are arranged in the working medium channel; the system further comprises an insulating sheet arranged between the first cover plate and the second cover plate, a power supply connected with the first cover plate and the second cover plate to generate a pulsed electric field, a magnetic pole used for generating a magnetic field parallel to the first cover plate and the second cover plate, and a liquid metal arranged in the working medium channel. The plate type pulsating heat pipe heat transfer system has the advantages that the structure is simple, meanwhile, the pulsating frequency and amplitude of the working medium in the plate type pulsating heat pipe can be controlled, so that the heat transfer performance of the plate type pulsating heat pipe is controlled and enhanced, the starting power of the pipe type pulsating heat pipe can be reduced, and starting control over the plate type pulsating heat pipe is achieved.

Description

technical field [0001] The invention relates to the technical field of pulsating heat pipes, in particular to a controllable plate-type pulsating heat pipe heat transfer system with an external oscillation source. Background technique [0002] As the most novel and unique member of the heat pipe family, the plate-type pulsating heat pipe is a two-phase flow passive heat transfer element, which is mainly composed of a heating section, an adiabatic section and a condensing section. Its working principle is to fill the plate-type pulsating heat pipe pumped to a certain degree of vacuum with a certain percentage of working fluid as required and then seal it. Due to the small inner diameter of the tube, under the influence of surface tension, the working fluid forms inside it. In the state where vapor plugs and liquid plugs are alternately and randomly distributed, the working fluid is heated and expands to generate bubbles at the heating end, and then the bubbles grow up, and th...

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Problems solved by technology

[0003] The normal operation of pulsating heat pipes in the traditional sense depends on the thermal excitation at the evaporating end. The internal working medium is heated and vaporized, which causes a pressure difference between the cold and hot ends of the tube and the pressure imbalance between adjacent tubes to maintain pulsating flow and phase change heat transfer. The pulsation frequency of the working fluid is uncontrollable. Due to the pulsation limitation of the pulsating heat pipe, the difficulty in starting it, and its unstable operation under low power conditions limit the application of the plate pulsating heat pipe in the low power input state.

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