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在丙烷预冷的混合制冷剂循环液化流程热力分析的基础上,对流程进行分析,并分析了流程中天然气压力、丙烷预冷后天然气的温度、制冷剂进入压缩机时的温度和压力及制冷剂压缩机排气压力对流程各设备损失的影响.分析表明,压缩机的损失占整个流程损失的一半.提高天然气的压力、混合制冷剂压缩机进气温度、混合制冷剂压缩机进排气压力,降低预冷后天然气温度,均可降低整个流程的损失.
On the basis of the thermodynamic analysis of the circulating liquefaction process of the propane precooling refrigerant mixture, the process is analyzed and the natural gas pressure in the process, the temperature of the natural gas after propane precooling, the temperature and pressure of the refrigerant entering the compressor and The impact of refrigerant compressor discharge pressure on the loss of equipment in the process is analyzed.The analysis shows that the compressor losses account for half the loss of the entire process.Improve the natural gas pressure, mixed refrigerant compressor inlet temperature, mixed refrigerant compression Machine into the exhaust pressure, reducing the natural gas temperature after precooling, can reduce the loss of the entire process.