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本文设计并制作了一种具有新型微槽道结构的铜水平板热管,实验测得了不同热流密度和不同充液率下热管正常工作时的稳态温度及相应的传热热阻,给出了热管的最佳充液量。实验结果表明,热管的蒸发面和冷凝面之间的温差很小,说明热管蒸发面和冷凝面上的微槽道结构有效强化了工质的相变换热,大幅度降低了轴向导热热阻,在充液率为87%时热管具有最佳的均热性能,轴向传热热阻只有0.0287 K/W,小于同厚度的铜板的导热热阻,表明所设计的热管在保持良好径向均热能力的同时,具有良好的轴向导热能力。
In this paper, we design and fabricate a copper horizontal plate heat pipe with a new micro-channel structure. The steady-state temperature and the corresponding heat transfer resistance of the heat pipe under different heat flux density and different liquid-filling rates are obtained. The best heat pipe liquid volume. The experimental results show that the temperature difference between the evaporation surface and the condensation surface of the heat pipe is small, which shows that the micro-channel structure on the evaporation surface and the condensation surface of the heat pipe effectively enhances the phase transformation heat of the working substance and greatly reduces the axial heat conduction The results showed that the heat pipe had the best performance of soaking when the liquid filling rate was 87%. The axial heat transfer resistance was only 0.0287 K / W, which was less than the thermal conductivity of the copper plate with the same thickness. To the same heat capacity at the same time, with good axial thermal conductivity.