Hydrogenation unit
Thread Content
One question asks: A low liquid level in the high-pressure separator of a hydrogenation unit may cause (overpressure explosion of the low-pressure separator). May I ask, a low high-level liquid level is likely due to excessive pressure in the high-pressure separator, which causes an explosion in that separator. Why then does it lead to an explosion in the low-pressure separator?
An excessively low liquid level in the high-pressure separator of the hydrogenation unit can cause pressure to leak from the high-pressure side to the low-pressure side; since the design pressure of the low-pressure side is low, this can lead to an explosion.
I went for a walk and came back with an answer; thanks again!
High voltage to low voltage. Generally, the operating pressure at low levels is low, but the equipment is designed for high pressures and is equipped with safety valves, so it’s not very dangerous. .
Firstly, a low high-pressure level does not necessarily mean high high-pressure; the high-pressure level is definitely controlled, that is, it corresponds to the operating pressure of the plant. A low liquid level can very likely cause high-pressure oil or water to flow into the low-pressure section; since the design pressure for the low-pressure section is lower than that of the high-pressure section, the pressure control valve in this section may not be able to adjust quickly enough, or the safety valve may not function properly and fail to activate. Even if it does activate, it may not be able to reduce the pressure sufficiently, which can lead to an explosion in the low-pressure section