| 摘要 |
PROBLEM TO BE SOLVED: To provide a gasification power generating system in which tar or non-reacted organic gas can be effectively prevented from being adhered to a gas pressure adjustor valve after stopping of its operation due to decrease in its temperature.SOLUTION: A gasification power generating system of this invention is constituted in such a way that: a gas shut-off valve is installed in a gas passage extending from a gasification furnace to an engine; a gas pressure regulator valve is installed in the gas passage from the gas shut-off valve toward the engine; a purge passage having both a first opening or closing valve and a purging blower therein is connected to a gas passage between the gas pressure adjustor valve and the gas shit-off valve; and a purge releasing passage having a second opening or closing valve is connected to a gas passage between the gas pressure adjustor valve and the engine. When the gasification power generating system receives an operation stop signal, the gas shut-off valve is closed and the first opening or closing valve and the second opening or closing valve are opened to drive the purging blower, and the driving of the purging blower is stopped after a prescribed time upon driving of the purging blower to close the first opening or closing valve and the second opening or closing valve. |
