在炼油厂,装置运行中突然发生设备停车所带来的后果,是不堪设想的。所以,对装置运行影响较大的流程用泵都有备用泵,很多都处于热备用状态。我厂催化装置泵109/2处于热备用状态时,在处理机械密封压盖上的冷却水管堵塞过程中,轴封泄漏曾发生过火灾。一、泵109/2在工艺流程的位置(见图1)及操作条件1.操作条件介质:渣油,395℃ In refineries, plant operation in the sudden occurrence of equipment parking consequences, is unimaginable. Therefore, the process of operation of the pump have a greater impact on the pump standby pump, many are in hot standby. I plant catalytic converter pump 109/2 in the hot standby state, in dealing with mechanical seal glands on the cooling water pipe clogging process, the shaft seal leakage has occurred over the fire. First, the location of the pump 109/2 in the process (see Figure 1) and operating conditions 1. Operating conditions Medium: Residual oil, 395 ℃