Cyclone surging
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I would like to ask what usually causes surging in the circulator of a hydrogenation unit during normal operation?
Reason: 1. The emergency pressure relief valve activated to release pressure； 2. The compressor inlet filter is clogged ；
I agree with you; there’s also the issue of excessive or insufficient load
The supply of new hydrogen is delayed, resulting in low pressure at the inlet of recycled hydrogen
The reduced capacity to handle pressure is mainly due to the fact that pressure release by the pressure relief valve does not cause surging; it is only when the pressure relief valve fails to open that surging occurs. With a circulation system in place, the bypass valves and pressure relief valves of the unit can keep up, so there are no problems
Check from both directions: first, whether the flow rate at the inlet has decreased; second, whether the downstream system has stopped using gas, resulting in an increase in back pressure. Additionally, there are some unusual faults as well, such as the guide vanes closing completely, excessive margin in the anti-surge system, or errors due to incorrect manual settings, and so on~~