| 摘要 |
<P>PROBLEM TO BE SOLVED: To shorten the time required for purging an exhaust gas boiler and to suppress the deterioration of operation effect. <P>SOLUTION: The GTCC plant 10 is equipped with an exhaust gas bypass damper 24 located in either one of the first position for making exhaust gas from a gas turbine 16 flow into a smoke pipe 22 and shutting the exhaust gas from flowing into an exhaust gas boiler 20 and the second position making the exhaust gas flow into the exhaust gas boiler 20 and shutting the exhaust gas from flowing into the smoke pipe 22, a gas extracting pipe 26 extracting compressed air compressed by a compressor 12 to the exhaust gas boiler 20, and a valve 28 arranged in the extracting pipe 26 and extracting the compressed air to the exhaust gas boiler 20 in an open state and shutting the extraction of the compressed air in a closed state. The exhaust gas bypass damper 24 is located in the first position and the valve 28 is opened when the gas turbine 16 is operated in purging the gas in the exhaust gas boiler 20 and the exhaust gas bypass damper 24 is located in the second position and the valve 28 is closed in completing the purging. <P>COPYRIGHT: (C)2012,JPO&INPIT |
