Overheating of a container at normal temperature and pressure
Thread Content
There is a storage tank at normal temperature and pressure, equipped with a steam coil for heating; the normal operating temperature is 40–50 degrees, while the design temperature is 80 degrees. Due to an operational error on site, the steam valve was opened, resulting in a steam temperature of 180 degrees. Steam was supplied in this manner for about 3 days, after which it was found that there was paint peeling, bubbling, and rust spots inside the tank. I would like to know how to repair it – is it sufficient to simply remove the rust and repaint? Does it have an impact on the service life?
To add, it was an empty tank – in other words, steam was being passed through it without any feed material. At that time, one of the pipe openings was open, and it was mainly through this opening that the steam was discharged
The cylinder is not deformed; in the event of tearing, it has no significant impact. After all, the pipe opening was open at that time, so the pressure was released directly. Fortunately, no injuries occurred, so it wasn’t a mistake. Manage it as strictly as possible.
It is advisable to equip such containers with alerts for temperature and pressure, as inadequate management can easily lead to unforeseen accidents.
This is the same kind of accident that happened at a factory last year; it ended up like this. Later, I went there to dismantle it and built a new stainless steel tank
Haha, it also served as promotion at the same time. The work is well done; give it a thumbs up.
There is a temperature alarm; it might not be in use yet
Was the tank above deflated by a pump?
Generally speaking, below 200 degrees, steel maintains good resistance, and designs usually include a margin of safety. If the container is not particularly large and the medium in question is not highly reactive, then safety accidents generally do not occur. But still, attention must be paid to the design temperature; operation should not exceed it, as accidents can have serious consequences. This container has been operating at elevated temperatures; it can be inspected by looking at its appearance and level of corrosion. If necessary, the welds should be examined to assess the condition of the container. If the container is still in good condition, a water leakage test should be conducted. If there are no issues, then simply apply some paint to it. However, it is still necessary to pay attention to management to prevent the container from operating at excessive temperatures or pressures.