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储液器作为泵驱动两相冷却系统的关键设备,其响应特性将直接影响系统的运行效果.通过储液器压力特性在泵启动过程、热源启动过程和系统稳定运行过程之间响应关系的实验研究和理论分析,结果表明在机械泵启动阶段,由于工质R134a的物理特性和和齿轮泵的工作特性,储液器压力越低,系统启动越稳定.储液器压力的变化,对热源启动过程影响较小,热源启动稳定.在稳定运行阶段,储液器压力越低,蒸发器出口温度波动越大.
As the key equipment of pump driving two-phase cooling system, the performance of liquid receiver will directly affect the operating performance of the system.According to the experiment of response relationship between pump start-up process, heat source start-up process and steady operation of the system Research and theoretical analysis show that during the start-up phase of the mechanical pump, due to the physical characteristics of the working fluid R134a and the working characteristics of the gear pump, the lower the pressure of the accumulator, the more stable the system starts. The pressure of the accumulator changes, The process has less impact and the heat source starts to stabilize.In the steady operation phase, the lower the accumulator pressure, the greater the outlet temperature of the evaporator.