Torch system
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What specific hazards can arise from the backflow of the medium from the chemical plant’s flare system into the material pipelines and equipment?
It’s just dry gas and acidic gas; nowadays, there’s very little acidic gas as well. It’s necessary to use environmental protection devices, but these can cause corrosion to the equipment and pipelines, affecting product quality. However, it generally doesn’t backflow. . .
No, that kind of situation you mentioned rarely occurs. Our low-power pipelines are all connected to each other, and the pipelines are properly purged before use. Moreover, there are shut-off valves installed on the flares within the equipment, so the possibility of backflow is very low
Under normal conditions, the flare system is under positive pressure, preventing air from entering the flare. There is also a liquid seal tank right below the torch, which prevents backfire
Where is the entrance to the environmental protection equipment? How is it set up?
We have sulfur recovery systems in place here, as well as sulfuric acid production facilities. Nowadays, it’s necessary to have environmental protection equipment; inspections are carried out frequently, almost every other day.
But I think going to the torch and going to the installation are different situations; they cannot be completely equated
Under normal conditions, the gas is sent to desulfurization and recovery units or units for recovering sulfuric acid, etc.; but in special situations such as startup and shutdown, it is sent to the flare stack, although the corrosion caused by acidic gases is more severe in such cases