Method for operating a steam turbine , and a turbine system provided with a steam turbine that functions according to said method

摘要

The invention relates to a method for operating a steam turbine (5, 5′) in which steam supplied as fresh steam (FD) that is expanded in order to effect work. According to the invention, the fresh steam (FD) is generated in a gas turbine (2, 2′) by heating cool steam (KD) that is supplied thereto. To this end, the steam turbine (5, 5′) that is cooled with the water vapor (WD) is connected on the inlet side to the steam-cooled gas turbine (2, 2′) via a fresh steam line (6, 6′) through which the heated cool steam (KD) is supplied as fresh steam (FD) from the gas turbine (2, 2′) to the steam turbine (5, 5′).