| 摘要 |
Disclosed is a circulating fluidized bed boiler capable of maintaining heat exchange efficiency of a heat exchange part within a predetermined range by quickly and automatically controlling the heat exchange efficiency. The circulating fluidized bed boiler according to the present invention comprises: a combustion furnace in which fluidized fuel is combusted; a separator separating solid particles from exhaust gas after receiving the exhaust gas and the solid particles from the combustion furnace, generated by combustion of the fluidized fuel; and a return system returning the solid particles, which are separated from the exhaust gas by the separator, to the combustion furnace, wherein the flue gas is generated by the combustion of the fluidized fuel. The return system includes a heat exchange part for recovering heat from solid particles supplied from the separator. The circulating fluidized bed boiler according to the present invention further includes a control part for controlling the flow amount of the solid particles flowing from the separator into the heat exchange part. |
