How should the dense packing system used at the start-up of catalytic cracking be coordinated with the purging of other process pipelines, and is there a sequence to follow? ? Please
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I need an answer: during the purging of process pipelines, how should closely arranged pipelines that are connected to each other be purged? Can purging be carried out from the process pipelines towards these closely arranged pipelines, or should they first be isolated from the process pipelines – by disconnecting the manual valves in front of them – so that purging is done only up to those manual valves? And then, when it’s time to purge the closely arranged pipelines as well, should all of them be purged together? How should this be done? ? ? ? Question? ? ?
If anyone understands, please let me know :'(:'(:'(:'(:'(:'(:'(:'(
http://bbs.hcbbs.com/thread-1429348-1-1.html We have compiled a summary of our purging work; we hope to use it as a reference!