FIELD: heat power engineering; designing of new and reconstruction of operating steam-gas plants. SUBSTANCE: to provide self-contained operation of steam-gas plant with steam boiler, fuel feed and air ducts are separated from exhaust duct of gas turbine. Gas turbine exhaust duct is connected to steam boiler gas duct in area of maximum rarefaction in boiler gas duct. To provide self-contained operation, steam boiler is furnished with air heater connected to boiler gas duct by bypass line shunting regenerative gas-water heat exchangers. EFFECT: provision of optimum operating conditions, both under self- contained and combination mode. 2 cl, 1 dwg
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