MOLTEN CARBONATE TYPE FUEL CELL GENERATING DEVICE

PURPOSE:To enhance generating efficiency by connecting a vapor line to the inlet side of the reforming section of a reformer, and thereby mixing a part of gas from the outlet of an anode, and vapor generated owing to thermal recovery within a system with reforming gas so as to be forwarded to the reformer. CONSTITUTION:Combustion exhaust gas exhausted out of the combustion chamber 4b of a reformer 4 is led to a gas-liquid separator 15 by way of an evaporator 13 and a heat exchanger 14, gas separated by the separator 15 is mixed with air within an air supply line 16, is pressurized by a blower 17 thereafter, and is then supplied to a cathode 2 through an air preheater 18. In the second place, liquid (water) separated by the separator 15 is pressurized by a pump 19, and is then forwarded to the evaporator 13 from a liquid-pool container 20. A part of vapor when the liquid is evaporated, is supplied to the inlet side of the reforming section 4a of the reformer for reforming natural gas from the liquid-pool container 20 through a vapor line 21. A device is provided with a cathode outlet gas line 12b which discharges remaining gas for preheating air to atmosphere from a cathode outlet through the air preheater 18, a butterfly valve 22 adjusting the flow rate of gas from an anode outlet, and with a butterfly valve 23 adjusting the flow rate of gas from a cathode outlet.