Self-driven thermosyphon loop heat dissipation device coupled with gas-liquid two-phase flow jet pump

Abstract

A self-driven thermosyphon loop heat dissipation device coupled with a gas-liquid two-phase flow jet pump comprises a gas-liquid separator, a cooler, the gas-liquid two-phase flow jet pump and an evaporator which are sequentially connected to form a loop, wherein a liquid outlet of the gas-liquid separator is connected with an inlet of the cooler through a first liquid section; an outlet of the cooler is connected with a liquid inlet of the gas-liquid two-phase flow jet pump through a second liquid section, a steam outlet of the gas-liquid separator is connected with a steam inlet of the gas-liquid two-phase flow jet pump through a first steam section, and an outlet of the gas-liquid two-phase flow jet pump is connected with an inlet of the evaporator through a third liquid section; an outlet of the evaporator is connected with an inlet of the gas-liquid separator through a second steam section; and the vertical height of the gas-liquid separator is larger than the position of the cooler and the position of the gas-liquid two-phase flow jet pump, the vertical height of the cooler and the vertical height of the gas-liquid two-phase flow jet pump are larger than the position of the evaporator, and the evaporator is vertically arranged. According to the self-driven thermosyphon loop heat dissipation device, a flowing pressure head in a loop can be remarkably improved, so that the heat dissipation capacity of the thermosyphon loop is enhanced, operation is more stable, and noise generated in the working process is small.

Description

technical field [0001] The invention relates to a technology in the field of radiators, in particular to a self-driven heat siphon circuit cooling device coupled with a gas-liquid two-phase flow ejector pump. Background technique [0002] The two-phase thermosyphon cooling circuit is a self-driven heat dissipation device, which uses the density difference between the downcomer (liquid line) and the upcomer (gas line) to achieve the working fluid circulation under the action of gravity, that is, in Gain drive while soaking up heat. Compared with mechanical pump drive, it can avoid problems such as failure and noise that may be caused by mechanical pumps. But for the thermosyphon circuit, the flow rate of the working medium in the circuit is limited by the cooling power. When the heat dissipation power is too small, the dryness of the evaporator outlet is low, the density difference between the ascending tube and the downcomer is small, and the pressure difference in the pip...

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Problems solved by technology

[0003] Aiming at the problem that the heat exchange capacity of the existing two-phase thermosiphon cooling circuit is limited by the driving head provided by the height difference, the present invention proposes a self-driven thermosiphon circuit coupled with a gas-liquid two-phase flow ejector pump for heat dissipation The device can significantly increase the flow pressure head in the loop to enhance the heat dissipation capacity of the thermosiphon loop, and the operation is more stable, and the noise generated during work is also small

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