METHOD AND DEVICE OF CONTROLLING TEMPERATURE OF WATER SUPPLIED TO BOILER IN FUEL CELL POWER GENERATING FACILITY

摘要

PURPOSE:To provide a method and a device of controlling the temperature of water supplied to a boiler and increasing efficiency of power generating facilities, by preventing water supplied to the boiler from evaporating in a supplied water heater, from partially flowing in a pipe and from causing pressure loss and obtain a stable flow. CONSTITUTION:A gas cooler 60 is arranged parallel to a supplied water heater 50 on the upstream side of a gas/water separator 70 in an anode exhaust gas line 11 and a control valve 90 is provided at a branch connection on the inlet side between the supplied water heater and the gas cooler to control the flow rate of anode exhaust gas respectively flowing therein. The temperature of water supplied to a boiler on the outlet side of the supplied water heater in a boiler water supply line 83 is detected by a temperature detector 92 and the control valve 90 is controlled according to the detected temperature of water supplied to the boiler to change the flow rate of anode exhaust gas flowing in the supplied water heater 50 so that the temperature of water supplied to the boiler can be controlled.