ELECTRIC POWER PEAK-SHAVING AND COMBINED HEAT AND POWER (CHP) WASTE HEAT RECOVERY AND OPERATION METHOD THEREOF Russian patent published in 2018 - IPC F24D3/18 F24D19/10 

FIELD: heat exchange.

SUBSTANCE: invention relates to an electric peaking combined heat and power (CHP) waste heat recovery device and an operating method thereof. Device comprises an inner power plant portion and a heat exchange station portion, wherein the inner power plant portion comprises a heat exchanger, a waste heat recovery electric heat pump, an energy-storing electric heat pump, high/low temperature water storing tanks, a heating network heater, a valve and circulating water pumps. Heat exchange station portion mainly comprises high/low temperature water storing tanks, an electric heat pump, a heat exchanger, a valve and a circulating water pump. Device can operate in periods of an electrical load trough, an electrical load flat and an electrical load peak respectively through combination of different valve switches, high temperature water storing tank is used for balancing the difference between system heat supply amount and heating load, the low temperature water storing tank is used for stabilizing steam exhaust waste heat recovery amount, thereby, the problem that the electricity generation peaking capacity is limited due to mutual coupling of electricity generation and heat supply in traditional operating modes of 'heat determines electricity' is solved, wherein CHP unit can participate in power grid load regulation, the power grid regulating capacity can be improved so as to deal with the condition of constantly increasing of electrical load trough-to-peak difference, and the absorptive capacity of a power grid for wind power generation can be improved so as to reduce phenomena of 'fan suspending'.

EFFECT: device for waste heat recovery.

8 cl, 2 dwg