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实验设计了并联蒸发器平板式环路热管实验系统。通过实验发现:两个蒸发器施加相等或不等的热负荷时,系统都能启动运行;而只有一个蒸发器施加热负荷时,低充灌率下,较难启动,增加充灌率后,能够改善系统的启动,但会使系统的运行温度升高;在某一热负荷下,单个蒸发器单独启动失败,而两个蒸发器一起启动时,系统又能启动成功;在做总热负荷一定的变工况运行时,每个蒸发器壁面的温度随施加到其上的热负荷大小而变化,但回流液的流向可能会改变这个规律,并且两个蒸发器上的热负荷进行不同分配的运行时,冷凝器进口温度有一个最高值。
Experimental design of the parallel evaporator flat loop heat pipe experimental system. The experiment found that: when two evaporators exert equal or unequal heat load, the system can start to run. When only one evaporator applies heat load, under low filling rate, it is difficult to start. After increasing the filling rate, Can improve the system start-up, but will make the system’s operating temperature increase; under a thermal load, a single evaporator failed to start alone, and two evaporators start together, the system can start successfully; in doing total heat load When a variable working condition is running, the temperature of each evaporator wall varies with the amount of heat load applied to it, but the flow of return fluid can change this pattern and the heat load on both evaporators can be distributed differently During operation, the condenser inlet temperature has a maximum value.