吸气干度对R32转子式压缩机性能影响的实验研究  

Experimental study on the R32 rotary compressor performance of different suction refrigerant quality

作　　者：孟亚飞 廖四清 陈磊 MENG Yafei;LIAO Siqing;CHEN Lei(Guangdong Meizhi Precision Manufacturing Co.,Ltd.,Foshan 528300;Midea Group Co.,Ltd.,Foshan 528300)

机构地区：[1]广东美芝制冷设备有限公司,广东佛山528300 [2]美的集团股份有限公司,广东佛山528300

出　　处：《家电科技》2024年第S01期175-179,共5页Journal of Appliance Science & Technology

摘　　要：为研究吸气干度对R32转子式压缩机性能的影响,采用带吸气干度检测功能的量热器法,通过改变压缩机吸气干度,结合制冷循环理论分析,对压缩机性能进行了实验研究。结果表明:吸气过热条件下,吸气状态对压缩机容积效率和等熵效率基本无影响;吸气带液条件下,压缩机容积效率和等熵效率随吸气干度降低而降低,相对吸气过热,吸气干度为0.94、0.88时,容积效率衰减3.3%、8.0%,等熵效率衰减8.3%、14.8%。实际压缩排气温度与吸气干度线性相关。吸气带液区制冷剂质量流量受吸气密度和容积效率共同影响。压缩机制冷能力和EER在吸气干度为1时存在最大值。在吸气带液区容积效率和等熵效率衰减改变了EER曲线走势。To study the effect of suction refrigerant quality on R32 rotary compressor performance,the calorimeter method with the function of suction refrigerant quality was used to study the performance of compressor by changing the suction refrigerant quality and analyzing theoretical refrigeration cycle.The results showed that:under the condition of superheating,the suction state had little effect on the compressor’s volumetric efficiency and isentropic efficiency.Under the condition of two-phase,the compressor’s volumetric efficiency and isentropic efficiency decreased with decreasing suction refrigerant quality.Compared to refrigerant superheating suction,the decay ratios of volumetric efficiency and isentropic efficiency were 3.3%,8.0%,and 8.3%,14.8%,for suction refrigerant quality ratios of 0.94,0.88.The actual compressor discharge temperature had a linear correlation with the suction refrigerant quality.Under the condition of two-phase,the mass flow rate is affected by suction density and volumetric efficiency.The capacity and EER had a maximum value at a suction refrigerant quality ratio of 1.Under the condition of two-phase,the attenuation of volumetric efficiency and isentropic efficiency changes the trend of EER curve.

关 键 词：吸气干度 转子式压缩机 容积效率 等熵效率 排气温度 EER 

分 类 号：TM925[电气工程—电力电子与电力传动] TB6[一般工业技术—制冷工程]