Reasons for the sudden increase in the leakage volume at the high-pressure end of the reforming cycle hydrogen compressor
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One day, there was a sudden increase in the amount of gas leaking from the high-pressure side of the reformation cycle hydrogen compressor, as well as a rise in pressure – the pressure almost reached the interlock value. The amount of sealing gas supplied to the high-pressure side also increased, but the low-pressure side remained normal with no fluctuations. What could be the cause of this situation? What are the possible explanations? I would appreciate advice from those with more experience!
Flare flow and pressure alarms: FIA22905 and FIA22906 monitor the flow rate of the primary flare; an alarm is triggered at a value of 20 Nm3/h for high levels, 40 Nm3/h for extremely high levels, and 6 Nm3/h for low levels； The pressure transmitters PT22905 and PT22906 monitor the pressure before the primary flare orifice plate; they trigger an alarm when the pressure reaches 0.15 MPa(G), and cause the system to shut down automatically when the pressure reaches 0.22 MPa(G). Frequent high readings of the primary leakage flow indicate a problem with the primary seal; the system should be shut down for maintenance of the seal.
If there is a fault with the dynamic and static rings of the primary seal, check whether the vibration level increases; stop the machine and replace the seal to prevent accidents. I recently damaged a set of mechanical seals: Q
There are no changes in vibration or displacement; by replacing the filter element and adjusting the amount of sealing air, stability has been achieved now, though the specific cause has not been identified
The vibration displacement remains unchanged; by replacing the filter element, the situation can be stabilized, which indicates that there were defects in the original filter element. As a result, the amount of air leaking increases. It’s more likely that there is a problem with the seam in the high-pressure section – please take this into consideration
It has been stabilized through process adjustments, thank you!
It has been stabilized through process adjustments, thank you!