| 摘要 |
<p>PURPOSE:To shorten the starting time of a compound generation plant by heating an auxiliary by-pass system diverging from a main steam pipe with gas turbine exhaust gas in a gas turbine exhaust gas duct. CONSTITUTION:A generation plant comprises a gas turbine 2 and a steam turbine 12. Auxiliary by-pass system 21, 23, 25, 27 diverge from a main steam pipe 17 for the steam turbine from a heat recovery boiler 5 for generating steam by exhaust gas of the gas turbine 2. The auxiliary by-pass A system 21 is drawn around in a gas turbine exhaust duct 4 to be directly heated by gas turbine exhaust gas. Thus, steam heated in the duct 4 can be sent to a required place by the auxiliary by-pass systems to accomplish early starting at the time of starting.</p> |
