Patent ID: 6047549
Filing Date: 2000-04-11
Classification: F01K,Y02E

Abstract:
A power plant facility having gas and steam processes, comprising:a first gas turbine group (1),a first back pressure turbine (9),a condensing steam turbine (16),a first waste-heat boiler (5) connected in off-gas receiving relation to said first gas turbine group (1) includinga high pressure section (6) connected in steam delivery relation to said first back pressure turbine (9) andan intermediate pressure section (7) connected in steam delivery relation to said condensing steam turbine (16),a first mixed gas/steam turbine group (10) including a combustion chamber (14),a second waste-heat boiler (11) including a superheater (12) connected in off-gas receiving relation to said first mixed gas/steam turbine group (10) anda flow connection between said first back pressure turbine (9) and said combustion chamber (14) via said superheater (12) whereby spent steam from said back pressure turbine (9) is subjected to interstage superheating in said superheater (12) in route to said combustion chamber (14).