FIELD: heat power engineering.
SUBSTANCE: invention can be used at building steam-gas plants of increased efficiency by means of gas-turbine unit mounted on steam-turbine plant on operating thermal power station. According to invention, all heating surfaces of boiler required for its operation on previous fuel are preserved, heating surface in additional so similar boiler surfaces are installed in separate convective gas conduit of gas turbine, and consumption of fuel in boiler reduced so that total steam-generating capacity of steam boiler with additional surfaces should be preserved at level of steam generating capacity of steam boiler at its operation with out gas turbine plant.
EFFECT: possibility of use of gas turbine plant on steam turbine power unit with boiler operating on any fuels, without long standstill of power unit for reconstruction and correlation of power of gas turbine and steam turbine operating en-bloc.
2 cl, 2 dwg
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