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提出了一种新型拐角式整体针翅回转热管,对该热管进行了详细的理论分析与设计,并对其传热性能进行了试验测试。结果表明:拐角式整体针翅回转热管的轴向温度从蒸发段到冷凝段逐渐降低,最大轴向温差随着转速的增大而减小;回转热管蒸发段的管壁温度沿圆周方向上的温差随转速的增大而变大,冷凝段的管壁温度沿圆周方向上的温差随转速增大而变小;回转热管的整体传热功率随转速的提高而增大;当充液率约为15%时回转热管的热阻最小,传热性能最好;吸液芯对热管传热性能的影响不占主导地位,在低转速工况下吸液芯提高热管传热能力,在高转速下则起阻碍作用;与平行轴回转热管相比,拐角式回转热管传热性能提高了5倍。
A new corner-type integral pin-fin rotary heat pipe was proposed. The heat pipe was analyzed and designed in detail. The heat transfer performance of the heat pipe was tested. The results show that the axial temperature of the round pin-fin heat pipe decreases gradually from the evaporator to the condenser, and the maximum axial temperature difference decreases with the increase of the rotating speed. The temperature difference becomes larger with the increase of rotating speed, the temperature difference along the circumferential direction of the wall temperature in the condensation section becomes smaller with the increase of rotating speed; the overall heat transfer power of the rotating heat pipe increases with the increase of rotating speed; Is 15%, the thermal resistance of the rotary heat pipe is the smallest, and the heat transfer performance is the best. The influence of the wick on the heat transfer performance of the heat pipe is not dominant. At low speed, the wick improves the heat transfer capacity of the heat pipe, Under the impediment; compared with the parallel axis rotary heat pipe, the corner rotary heat pipe heat transfer performance increased by 5 times.