What types of accidents usually occur in diesel hydrogenation units that require the shutdown of the new hydrogen compressor?
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As the title suggests, under what kinds of accidents in a hydrogenation unit is it necessary to shut down the new hydrogen supply machine, and under what conditions should it be stopped? What are the reasons for stopping the new hydrogen generators? I have been troubled by these questions for a long time, and I hope that the experts here can offer some guidance! ! ! Thank you very much
During emergency pressure relief, when fresh hydrogen supply is interrupted, or when the hydrogen-related system catches fire.
In my opinion, since the main function of the new hydrogen supply unit is to replenish the hydrogen that has been consumed and maintain the reaction pressure, it is stopped mainly in situations where pressure needs to be released, or when there is a disruption in the supply of new hydrogen or when the amount of hydrogen arriving is insufficient. When pressure needs to be released, there is no need to re-pressurize, which is why the new hydrogen supply unit is stopped. This is also the reason why it stops automatically at 1.4 MPa. The new hydrogen supply unit is stopped when there is a disruption in its supply or when the amount of hydrogen arriving is insufficient, in order to prevent an excessive pressure ratio that could cause failures in the unit. Other factors such as lubricant pressure, outlet temperature, and machine vibration can also lead to the automatic shutdown of the new hydrogen supply unit.
Stop the purification air flow, power outages, device fires, interruptions in hydrogen supply – in such accidents the new hydrogen compressor is shut down; specific circumstances require specific handling
New hydrogen supply interrupted; start at 0.7 or 2.1, or shut down the unit urgently