What are the symptoms of a malfunctioning safety valve in an air pressure unit causing it to activate on its own?
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As the title indicates, how should this be handled? Safety valves include those for turbines and compressors.
Generally, there are two safety valves at the outlet of a unit; the best thing to do is to close the manual valve of the safety valve that has triggered as soon as possible!
Identify the cause of the startup as soon as possible. If the pressure has risen to the level at which startup occurs, take measures to reduce the system pressure promptly. In the case of an abnormal startup, it is recommended to disconnect the relevant component and conduct immediate verification to restore normal operation
Reduce the turbine speed, control the pressure in the settler properly, shut down the air compressor, stabilize the process operations first, conduct on-site inspections, and secure the safety valves and gate valves to prevent them from moving
Σ(?Д?) is so amazing!!
I’m not sure if you mean centrifugal or reciprocating
A safety valve opening constitutes a safety incident; the first step is to determine the cause based on the observed symptoms – whether it is a process-related issue or a equipment failure – and to figure that out first. Secondly, it involves dealing with accidents: when a safety valve activates, the compressor is bound to experience surge, so it is necessary to contact the upstream and downstream units to adjust operations, activate another safety valve to effectively isolate the faulty one, and then remove it for inspection.
In my opinion, safety valves are generally installed at the outlet of the turbine: a steam pressure of 1.0 Mpa at the outlet has little impact on the turbine. When the safety valve at the compressor outlet activates, the pressure at the compressor outlet drops, but this also has little effect on the compressor itself; however, it does affect the stability of the system. In any case, it is necessary to find out the reason for the activation of the safety valve. If the pressure isn’t actually too high, the valve controlling the safety valve should be closed immediately
Too low a backpressure steam pressure can cause the unit to enter interlock mode. Too low an outlet pressure in the compressor can cause compressor surge.
Generally, both sets of safety valves on a pneumatic press should be in use, right?