聚丙烯装置氮气输送压缩机机头烧损事故分析

The Accident Analysis of Polypropylene Plant Nitrogen Transportation Compressor Head Burning

神华宁夏煤业集团烯烃公司聚丙烯装置三台氮气输送压缩机因转子内部进入异物导致压缩机效率下降。2012年一台压缩机因入口进入异物,导致排气端转子和墙板受损严重。经过对此次事故分析、搜集数据和与压缩机厂家进行交流之后,发现螺杆压缩机工艺条件的改变是导致此次事故发生的主要原因。在此进行事故分析并提出解决方案,供类似装置进行参考。

Polypropylene plant of Shenhua Ningxia coal industry group olefin company three nitrogen delivery for compressor rotor into the foreign body in compressor efficiency decline. In 2012 ,the entry into the compressor of foreign material causes the severe damage of the rotor in exhaust end and wallboard. After the accident analysis, data collection and communication with the compressor manufacturers, we found that the change of screw in process conditions is the main cause of this accident. This accident has analyzed and some solutions are also proposed,which can be a reference for simlar device.