Energy storage power plant waste heat recovery method and system

One kind of energy storage power plant waste heat recovery method, the power of the heating season the day, all of the power generation unit to generate electricity, using a full load accumulator water heating system; heating season night, extracted by the power extraction unit for steam turbine opening a heating unit driven by the steam from the heating network in the return means 60 ℃ obtained hot net return heating to 80 ℃, the turbine then heated in the steam return 80 ℃ drive two steam heating unit heating the withdrawn bleed port heating was continued to 120 ℃, and accumulator 120 ℃ water as a heat source of the heating system. The present invention helps meet the charge transfer, peaking requirements, to ease the power shortage during peak hours, the power to optimize the allocation of resources, improve energy efficiency; Design of heating amount reaches the upper limit for the thermal power plant at night electricity load trough heating accumulator , accumulate energy during the day and release heat and the original heating system heating run, expanding the capacity of the heating power plant, a thermal power plant to improve profitability and achieve a thermal power plant for industrial waste heat recycling, integrated water heating energy storage section rate of 20%, it will help alleviate energy crisis and environmental pollution.