Micro-channel two-phase flow radiator test device

Abstract

The present invention belongs to the technical field of radiator tests, and especially discloses a micro-channel two-phase flow radiator test device. The device comprises a bottom plate, a glass steelcavity, a transparent glass plate and a cover plate which are connected to each other from bottom to top. An inner cavity formed by the bottom plate and the glass steel cavity is internally providedwith a copper block, a metal block module is internally provided with a heating bar device, a tested microchannel is etched at the top surface of the metal block module, the middle portion of the glass steel cavity is provided with an opening groove, the shape of the opening groove is adaptive to the shape of the microchannel flow channel, the opening groove is provided with a fluid inlet and output corresponding to the microchannel, and the position of the outlet of the fluid is correspondingly provided with a thermocouple device and a pressure sensor device. The test device can more conveniently dismount and replace the microchannel, can achieve microchannel visualization through the transparent glass plate, and is high in practicability and good in test effect.

Description

technical field [0001] The invention belongs to the technical field of radiator testing, in particular to a microchannel two-phase flow radiator testing device. Background technique [0002] With the increase of heat output per unit volume and surface heat flux density of devices, how to effectively dissipate heat has become an urgent problem to be solved. Micro-channel heat dissipation is a hot spot in the research of new heat dissipation methods. The micro-channel heat sink has the characteristics of large specific surface area, the heat exchange area per unit volume of the heat sink increases, and the heat dissipation effect is enhanced. In addition, the micro-channel heat sink also has small size, channel Simple structure and many other advantages. [0003] Due to the micro-scale of the microchannel, the characteristics of the fluid working medium are quite different from those shown in the macro-scale, and the flow pattern of the two-phase flow observed in the micro-ch...

AI Technical Summary

Problems solved by technology

However, the structure of the device used to test the microchannel is relatively complex, and it is difficult to process such features as good air tightness and precise installation of thermocouples; and the device used to test the microchannel can only test the performance of a single microchannel structure

Due to the limited technology of experimental observation devices, it is often impossible to observe the changes of two-phase flow flow patterns and bubbles intuitively.

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