Shenmu compressor quick-open control
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How is the rapid opening of the anti-surge valve in Shenyang Gear Compressor achieved, and what are the differences between this mechanism and that of normal PID-controlled valves?
When the flow rate suddenly drops, quick opening is initiated; as the flow rate decreases gradually, the PLD will slowly open the anti-surge valve.
I remember that Shenmu’s system is similar to GE’s. GE’s manual provides detailed instructions on the procedures to follow; I can’t recall exactly the details related to control systems, but it seems that the rapid opening mechanism is activated when the operating conditions approach the surge line. When a certain threshold is reached, a solenoid valve opens quickly to enable the surge preventer to open as well. I can’t remember the exact details anymore