水煤浆加压气化装置高压灰水泵故障分析及对策

Malfunction Analysis and Countermeasure of High Pressure Ash Water Pump in Coal Water Slurry Pressurized Gasification Device

分析了煤制甲醇气化装置开车过程中3台高压灰水泵出现的机械密封泄漏、汽蚀、泵轴断等故障原因,通过更换阻垢缓蚀剂、重新配管、改造进口过滤器,并加强工艺操作管理后,压力、流量稳定,轴振动在10 mm/s以下,运行正常。

The paper analyzed the malfunction such as mechanical seal leakage,cavitation,pump shaft broken and the causes of the three high pressure ash water pumps in the coal to methanol gasification device driving process.The pressure and flow were stable through changing scale and corrosion inhibitor,reconfiguring pipeline,transforming the import filter and strengthen the process management.Shaft vibration was less than 10mm/s,and the operation was normal.