Is it feasible to reduce the safety valve discharge condition by improving self-control measures?
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I have a small project on hand; the pressure vessel is equipped with a safety valve, and there is pressure reduction before the vessel’s inlet. According to API specifications, it is necessary to consider the gas intrusion condition caused by the failure of control valves. Since the leakage rate is too high at this time, considering increasing the automatic control measures to avoid situations where the control valve fails – is this feasible? For example, set a high-high pressure alarm of 2oo3 on the container to shut down the dual SDVs at the inlet in a interlocked manner. Is it feasible?
Sure, if higher requirements exist, an electromagnetic valve can be installed after the control valve; a high-pressure alarm and a high-pressure interlock mechanism can be set up, such that when the interlock is triggered, the inlet control valve as well as the electromagnetic valve located after it are closed.
That’s possible; it’s also possible to design an overflow protection or overpressure protection device directly
It depends on the project’s regulations; approval from the owner is required. It is also recommended to add PST to SDV