FIELD: energy.
SUBSTANCE: method of expander-generator plant power plant consists in that portion of natural gas supplied at main gas pipeline on electric power plant, heated and fed into the turbine expander, in the turbine expander during expansion of natural gas a mechanical work is performed, which is spent to drive electric generator of turbine expander, used in turbine expander natural gas is supplied into the furnace of power boilers, at that heating of natural gas before feeding into turbine expander is carried out in an intermediate gas cooler of tubular type by heat of natural gas heated by the compression process in booster gas compressor of gas turbine plant, and heating of natural gas after the turbine expander prior to feeding it in furnace of power boilers is carried out in the oil cooler of a tubular type by heat of oil, heated in lubrication system of booster gas compressor of gas turbine plant.
EFFECT: invention allows increasing the economy of expander-generator plant and efficiency of power boilers of thermal power station.
1 cl, 1 dwg
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