双罐式气泵供液制冷系统性能的实验研究  

Experimental study on the performance of the two-tank air pressure feeding refrigerant system used in refrigerated warehouse

作　　者：王辰[1] 张晨阳[1] 张哲[1] 刘一夫[1] 王晓东[1] 范春秀 

机构地区：[1]天津商业大学天津市制冷技术重点实验室,天津300134 [2]辽宁省浑南体育训练基地,沈阳110000

出　　处：《低温与超导》2015年第4期64-67,共4页Cryogenics and Superconductivity

摘　　要：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。As one kind of air pump for liquid, the two - tank air pressure feeding refrigerant system utilizes high - pressure gas or liquid energy as refrigerants for hydraulic head to evaporator. Experiments for the fluid pressure regulator to control the a- mount of fluid recirculation evaporator for regulating loop refrigeration system magnification ratio in the loop were conducted. When the circulation ratio rose, the evaporator heat transfer would rise to a maximum value. By measuring technical parameters, analyzing cooling performance, compressor performance and heat transfer performance under different working conditions, the re- suits could be used as theoretical foundation of the engineering applications. This experiment showed that the main factors for heat transfer performance were different in different range of hydraulic head, and there was no further increase for cooling capacity when hydraulic head raised to a certain value, and COP would drop at the same time.

关 键 词：气泵供液 供液压头 循环倍率 传热性能 

分 类 号：TB65[一般工业技术—制冷工程]