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【摘要】 天然气处理厂丙烷制冷系统是影响整个工艺装置的丙烷收率的重要系统,系统中额定功率298kW的丙烷制冷螺杆压缩机是全厂设备中能耗最大的用电设备。工况、气体处理量、操作等众多因素均有可能影响压缩机能耗,从丙烷制冷螺杆压缩机Vi值(内容积比)的角度来探讨机组的经济运行。 【Abstract】 The propane refrigeration system is the important system affecting the recovery efficiency of natural gas processing plan .The rated 298kW propane refrigeration screw compressors is the maximum electric power consumption equipment of the factory.Conditions,the gas handling amount,operation and many other factors that are likely to affect the compressor power consumption,the author from the propane refrigeration screw compressors Vi value set(volume ratio) illuminate how to set the value Vi to achieve economic running. 【关键词】 螺杆压缩机; Vi值(内容积比); 能耗 【Key words】 Screw compressor; Vi value (inner-volume ratio); energy consumption