FIELD: mechanical engineering; gas-turbine plants.
SUBSTANCE: proposed combination gas-turbine plant has steam waste heat recovery boiler arranged in exhaust duct and connected by heated medium line to closed circuit with steam turbine with working wheels, multishaft reduction gear whose shafts are installed in bearings arranged in housing and connected to lubrication system. Shafts of driving gears are connected with gas turbine of gas-turbine plant and with steam turbine, and shaft of driven gear is connected with useful load shaft. If steam turbine power is not greater than 40% of gas-turbine plant power output, steam turbine is made two-shaft, two housing, and working wheels of steam turbine are fitted on shafts of driving gears of multishaft reduction gear, bearings of said shafts and their lubrication system being bearings and lubrication system of steam turbine. Housing of steam turbine are secured on reduction gear housing. Useful load shaft is connected with electric generator.
EFFECT: facilitated mounting and servicing of gas turbine plant.
4 cl, 3 dwg
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