PID steam production system using dual PID pressure control

摘要

The present invention was designed to save wasted energy by using the steam that is discarded from the regas boiler without using an aux boiler when using the regas boiler in GCU mode, and is connected to a supply line that receives natural evaporation gas. The regas boiler is connected to the first use in a state connected to the first line where the first PT is installed, and the second line branching from the first line is provided with a regas boiler dumping valve, and the first PID is The first signal line is connected to the first PT and the regas boiler dumping valve respectively, and the aux boiler is connected to the second use through the third line, the fourth line connected between the first line and the third line, and A steam production system using dual PID control in which the second PT and the second pressure control valve are respectively installed in the fourth line, and the second PT and the second pressure control valve are signal-connected through a second PID and a second signal line. Is provided.