MIXING SYSTEM

摘要

Provided is a mixing system which includes a back-end heater (41) for increasing the inner pressure of a pressurizer; a spray valve for lowering the inner pressure of the pressurizer; a pressure sensor for detecting the pressure inside the pressurizer; and a pressure control section (44) for providing feedback control to the spray valve toward a target pressure on the basis of a detected pressure value sensed by the pressure sensor. The mixing system is adapted such that the pressure control section (44) has a PID control section (51) for providing feedback control during heating a coolant by the back-end heater (41) to output a control differential pressure value; and a bias setting section (53) for setting a bias in accordance with the control differential pressure value to actuate the spray valve, so that the spray valve is actuated on the basis of the control differential pressure value after the setting of the bias.