壳牌气化煤制甲醇二氧化碳压缩机问题分析和改进

Analysis of the Existing Problems of the CO_2 Compressor for the Coal-to-Methanol Unit of Shell Gasification Plant and Their Improvement

介绍了壳牌粉煤气化煤制甲醇二氧化碳压缩装置的设计和装置的运行情况,针对二氧化碳压缩机运行中存在的压缩机辅机及管道震动大、二级缸支承环磨损快、活塞杆活塞紧固螺母处断裂等问题,提出了相应的改进措施,实现了装置的长周期运行,取得了较好的效果。

The design and operation status of the CO2 compressor for the coal-to-methanol unit of the Shell pulverized coal gasification plant was introduced. Some suggestions were given on the remedy of the problems that occurred during operation, e.g. excessive vibration of the auxiliary set of the CO2 compressor and the connecting piping, easily worn out of the supporting ring of the secondary cylinder, rupture of the lock-nut of the piston rod, etc. Achieving good result, the aforementioned measures facilitated long-term operation of the unit.