Patent ID: 6405525
Filing Date: 2002-06-18
Classification: F01K,Y02E

Abstract:
Combination power plant comprising at least one gas turbine system, a steam turbine, a waste heat steam generator where the hot waste gases of the gas turbine system flow through said waste heat steam generator and said waste heat steam generator generates steam for operating the steam turbine within a water/steam cycle, and said waste heat steam generator comprises at least one evaporator and a superheater that follows the at least one evaporator, where said superheater delivers live steam by a live steam line to the steam turbine, a first injection device for injecting water into the live steam is located in the live steam line, and where said injection device is supplied by a first supply line with injection water from a removal point in the water/steam cycle, wherein first means for preheating the injection water are provided in the supply line of the first injection device a short distance from this injection device.