The coking water drainage line is blocked
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The drainage line for coking was blocked. After conducting various checks, including testing the valves for pressure buildup and performing pressure release tests, as well as inspecting the drainage outlets of the coking tank, the valve of the drainage line was removed and it was found that there was an iron frame stuck inside it； This problem of poor water resistance has finally been solved ；
How is this metal frame put in? ? ? ?
It’s indeed a problem; if they had known, the iron frame wouldn’t have gone in； It seems to have fallen in during the maintenance process to clean the carbon deposits on the pipe walls
During maintenance, tools need to be counted, and a check should be done before sealing