Drain the liquid from the pipeline
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How to remove the flammable liquid from the pipeline, where to purge it from, and where does the vented gas go? Which master can answer? Thank you
What’s the specific process like? Make it clear so the problem can be solved.
If the pipeline is to be taken out for maintenance, the flammable liquid is generally discharged into a collection tank through the vent drain; after it has been completely drained, the pipeline is purged with steam
The pipes in the pipe rack don’t have points for draining liquid at the lower levels and venting it at the higher levels; after operation, maintenance is required – how can the liquid inside be removed?
If there is no venting, the pressure must be relieved before the pipeline can be opened or manipulated. If the pressure is low, as a last resort, the section in question can be removed and a flange used to gradually relieve the pressure
The air intake strip uses wind to push the liquid out.
Flammable liquids are also classified into different types; gasoline requires water to be used for cleaning, while diesel can be cleaned with steam directly.