Combined gas/steam power station plant

Details Combined gas/steam power station plant Combined gas/steam power station plant

F - Mech Eng,Light,Heat,Weapons

01

D

F01D 13/00 (2006.01) F01K 23/10 (2006.01) F02C 6/00 (2006.01)

Patent

CA 2069593

91/042 ABSTRACT OF THE DISCLOSURE In a combined gas/steam power station plant which consists essentially of a fossil-fired gas turbine group and a steam circuit, with an exhaust heat boiler (11) in between, intercooling and reheat is provided to maximize the efficiency. The gas turbine group consists of two compressors (1, 2), of two combustion chambers (7, 9) and of two turbines (8, 10). Downstream of the first compressor (1), there is an intercooler (3) and on the cool side of this is placed an evaporator (4) which is in effective connection with the intercooler. The steam quantity formed in the evaporator (4) is introduced into a turbine (6) of the steam circuit, the result of this being a first improvement in efficiency. Downstream of the first turbine (8), there is a second combustion chamber (9) in which the exhaust gases from the first turbine (8) are processed to produce hot gases for the second turbine (10). The large calorific potential still present in the exhaust gases from this second -turbine (10) flows through the exhaust heat boiler (11) in which a maximized steam power is produced, the result of which is the second improvement in efficiency.

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