FIELD: power engineering. SUBSTANCE: fresh steam is extracted upstream of the main heat turbine. Heat of this portion of steam is withdrawn by stages for charging sections of a heat accumulator. A portion of the steam, which is extracted downstream of the intermediate stage for heat withdrawing, is expanded in additional counter-pressing turbine. Heat of steam downstream of the turbine and last stage for heat withdrawing is used for heating system water with simultaneous displacing of the steam from heat withdrawing spaces of the main turbine. The heat pump is used for withdrawing of heat from the portion of fresh steam for charging the sections of the heat accumulator. EFFECT: simplified method. 2 dwg
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