초록 ▼

For achieving a high plant efficiency, a waste-heat steam generator, in particular for a combined-cycle power plant, has a number of heating surfaces heatable by a flue gas and carrying a medium to be heated. The steam generator can be operated at critical or supercritical pressures and has a once-t

For achieving a high plant efficiency, a waste-heat steam generator, in particular for a combined-cycle power plant, has a number of heating surfaces heatable by a flue gas and carrying a medium to be heated. The steam generator can be operated at critical or supercritical pressures and has a once-through evaporator connected in countercurrent to the flue gas provided on a medium side. The evaporator is followed by a preheater and preceded by a superheater on a flue-gas side.

대표청구항 ▼

[ We claim:] [1.] A waste-heat steam generator, comprising:a number of heating surfaces heatable by a flue gas and carrying a medium to be heated, said number of heating surfaces including:an evaporator having an inlet side, an outlet side and evaporator tubes;a preheater following said evaporator o

[ We claim:] [1.] A waste-heat steam generator, comprising:a number of heating surfaces heatable by a flue gas and carrying a medium to be heated, said number of heating surfaces including:an evaporator having an inlet side, an outlet side and evaporator tubes;a preheater following said evaporator on a flue gas side; anda superheater preceding said evaporator on the flue gas side, said preheater, said evaporator and said superheater disposed on a medium side in countercurrent to the flue gas;an inlet distributor connecting said evaporator on said inlet side to said preheater;a throttle configuration connecting each of said evaporator tubes to said inlet distributor; anda pressure-equalizing header in a form of an equalizing tube connected to said evaporator.