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双罐式气泵供液制冷系统作为气泵供液的一种,运用高压气体或液体的压力输送制冷剂到蒸发器。该实验通过控制供液气压来调节再循环蒸发器的供液量,调节制冷系统中的循环倍率,在供液气压升高而导致循环倍率增大的同时,蒸发器的传热量会升高到最大值。通过技术参数的收集整理,分析比较不同工况下的制冷性能、压缩机性能和传热性能等特性,作为双罐式气泵供液制冷系统工程应用的理论依据。实验表明,不同范围的供液压头,对传热性能的主要影响因素不同,蒸发器制冷量在供液压头升高到一定值后不再增加,系统COP也将下降。
Dual-tank air supply pump cooling system as a pump for the liquid, the use of high-pressure gas or liquid pressure delivery refrigerant to the evaporator. The experiment by controlling the supply air pressure to adjust the amount of liquid supply to the recirculation evaporator to adjust the cycle rate in the refrigeration system, the increase in liquid pressure causes the circulation rate to increase at the same time, the evaporator heat transfer will rise to Maximum Through the collection and sorting of technical parameters, the characteristics of refrigeration performance, compressor performance and heat transfer performance under different operating conditions are analyzed and compared, which can be used as the theoretical basis for the engineering application of two-tank air pump refrigeration system. Experiments show that different ranges of hydraulic heads have different influences on the heat transfer performance. The evaporator cooling capacity will not increase after the hydraulic head increases to a certain value, and the system COP will also decrease.