There is an internal leak in the catalytic slurry steam generator; it has been shut down for maintenance. What do others do in such situations?
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As the title suggests: there is an internal leak in the catalyst slurry steam generator; it has been shut down for maintenance. What methods do others use to handle such situations?
I’ve understood the accident summary of Wushihua Petrochemical. Then you’ll know
Regardless of the type of work, before handing it over to the construction team or one’s own maintenance staff, it is necessary to ensure that there is no pressure medium inside, that the area has been emptied of pressure, and that the purging and replacement process has been completed successfully
All four of our vapor return lines are equipped with pressure gauges, and the two liquid drainage pipes have drain lines. Each time, we verify that none of the four pressure gauges show any pressure and that there is no fluid in the two drain lines; only then do we install blind flanges on the slurry line before starting the maintenance work.
If there’s no pressure gauge, it means the job isn’t easy to do, so I posted to learn* learn*.
There are no pressure gauges on either side of the system, so pressure cannot be monitored. Purging and replacement involve a large amount of fluid, increasing the risk of cross-contamination.
It’s okay if there’s no pressure gauge. When you purge the oil slurry pipeline, the vent on the shell must be opened; this allows you to check whether there are any leaks in the steam and water valves
I have been following the accident at Wushihua Petrochemical, but there are many questions I can’t figure out. It is said online that the pressure wasn’t released, but then why didn’t there be any leakage? Was it true that the DOS indicated a steam pressure of 22 kilograms at the time of the incident? Since there were no sparks at the scene, it wasn’t a fire or explosion – could it have been a flash explosion, as everyone is suggesting? Various materials are leaking everywhere; it is said that no purging has been carried out……