Combined Cycle Gas Turbine Plant with Exhaust Heat Steam Generator

摘要

The present invention relates to a combined cycle gas turbine plant and a corresponding method for operating the combined cycle gas turbine plant, to a steam generator based on the forced flow principle during load operation of the combined cycle gas turbine plant. The mass flow rate of water supplied is that the medium-pressure stage evaporator heating surface (6) is excessively supplied, and thereby the prescribed amount of excess water heated by the evaporator heating surface (6) but not vaporized is It is set to be diverted to a heat exchange circuit for preheating the fuel for the gas turbine via the steam separator (11).