滚动转子式压缩机吸气状态与排气温度的实验研究

Experimental Study on Suction Refrigerant State and Discharge Temperature for Rolling Piston Compressor

利用变频滚动转子式压缩机实验台，研究了压缩机吸气带液对系统性能和排气温度的影响，以寻求降低压缩机排气温度有效、安全的方法。结果表明：在大部分空调工况和运转频率下，当吸气干度约为0．95—0．98时，系统制冷量和COP达到最大值，且压缩机的排气温度显著降低至吸气压力对应的饱和等熵压缩排气温度。考虑到运行的安全性，吸气干度合适的范围为0．95—0．98。

Influence of suction refrigerant state on system performance and discharge temperature was carried out through a variable speed rolling piston compressor test bench. Results show that under the most air-conditioning conditions and the most operating frequencies, system capacity and COP will reach peak value, and discharge temperature will be effectively decreased to the corresponding theoretical discharge temperature of isentropic compression process when suction vapor quality is about 0.95 - 0.98. Considering running safety, the ap- propriate suction vapor quality should be among 0.95 - 0.98.