This paper explores the work efficiency decline of reciprocating cycle propylene compressor in 100 000 tons/a polypropylene plant of Ningxia Petrochemical Company during operation,and analyzes the faults according to the application of reciprocating compressor in polypropylene plant.The main reasons for the decrease in the work efficiency of reciprocat-ing compressors are frequent coking and fracture of the air valve,fine powder entrainment of the circulating medium,and the decrease in the heat exchange effect of the body heat ex-changer.By adjusting the upstream operation,the material replacement of the air valve,the cleaning and maintenance of the heat exchanger,and the cleaning of the reciprocating com-pressor inlet filter screen regularly,etc.It extends the service life of the reciprocating com-pressor,reduces the number of shutdowns,avoids the pollution of the environment caused by propylene emission and the energy loss of the device caused by shutdown emission,and lays the foundation for the safe operation of the polypropylene device for a long period.
维普
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