Is it okay to carry out external welding work on the gasoline, gas, and liquefied gas pipelines that are in use without taking any measures?
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Is it okay to carry out external welding work on the gasoline, gas, and liquefied gas pipelines that are in use without taking any measures? Friends who are interested can discuss it.
I haven’t tried this; it’s not allowed. We must stop the vehicle, make a swap, and isolate it
I won’t talk about situations where there is a separation between tasks; in our workshop we often punch time cards and pack boxes (through welding), but we never dare to do such things on gasoline, gas, or liquefied gas pipelines.
Referencing the method of plugging leaks under pressure – isn’t that just the approach used when processing must continue despite the presence of fluid?
How is a packaging box made? Isn’t it just to use a medium?
This post was last edited by ylb913 on 2015-12-7 06:51. Yes. ——I remember that we worked on a project related to encasing liquefied gas pipelines last year; it involved the inlet section of those pipelines, where the enclosure was submerged in water (alkaline solution), causing a drop in system pressure.
No, it’s necessary to disconnect in order to replace the air.
When I was at the small nitrogen fertilizer factory, the experienced workers could all perform pressure welding, but I always thought it was very dangerous
As long as a positive pressure is maintained inside the pipeline and the wall thickness meets the requirements, it’s fine; also, the current used during welding should be low
Both direct welding and box wrapping are very dangerous; the risks are too high. It’s safer to use clips.