Patent ID: 7367192
Filing Date: 2008-05-06
Classification: F01K,Y02E

Abstract:
1. A combined cycle plant equipped with a conventional thermal power plant having a boiler, boiler pipe including main steam pipe, cold reheat pipe and hot reheat pipe, steam turbine; condenser; and condensate water/feedwater system, and a gas turbine plant having a gas turbine, heat recovery steam generator recovering heat from the gas turbine exhaust. and heat recovery steam generator pipe supplying the generated steam from the heat recovery steam generator to the steam turbine, the combined cycle plant further comprising: a dump system connecting the boiler pipe with the condenser and dumps the steam generated by the boiler into the condenser, bypassing the steam turbine; and a pipe connecting the heat recovery steam generator pipe with the dump system into the condenser wherein the dump system into the condenser is the main steam pipe drain system of the conventional thermal power plant and the point of connection between the heat recovery steam generator and the dump system into the condenser is located on a pipe of the main steam pipe drain system.