| 摘要 |
<p>PURPOSE:To use heat energy effectively, reheat garbage furnace exhaust gas up to a temperature necessary for denitration, and recover again heat used in this reheating. CONSTITUTION:In a power generating plant having both a gas turbine exhaust gas line B of a gas turbine power generating device and a garbage furnace exhaust gas line A to discharge exhaust gas generated in a garbage furnace 1 in the atmosphere successively at least through an exhaust heat recovering boiler 2, an exhaust gas purifying device 5, an exhaust gas reheating device 6A and an exhaust gas denitrating device 7, heat of at least a part of exhaust gas discharged from a gas turbine 11 is used as a heat source of the exhaust gas reheating device 6A, and garbage furnace exhaust gas is reheated A device 23 is provided to recover again the heat from the exhaust gas passed through the exhaust gas denitrating device 7 in a reheated condition. A temperature raising device can be provided to reheat the garbage furnce exhaust gas when the gas turbine 11 is stopped.</p> |
