FIELD: power engineering; boilers, furnaces, and heat generators burning gas, liquid and solid fossil fuel. SUBSTANCE: plant operating process includes fuel combustion in moistened blast air environment, heat transfer from combustion products, cleaning of the latter by means of absorbing solution followed by recovery of heat released form cleaned combustion product including extraction of steam condensate from them and maintenance of desired absorber concentrations in circulating flow; combustion products are exhausted into atmosphere under pressure of vane supercharger through tandem-arranged water and contact-surface economizers, drier, regenerative gas heater, and chimney stack, their temperature in gas lines is raised above dew point in regenerative gas heater, heated and moistened air is fed from contact-surface or regenerative air heater by means of fan to furnace in the amount required for burning gaseous fuel at preset coefficient of excess air. Thermal power plant incorporating complex system for deep heat recovery and pollutants emission reduction has power unit, fan, contact-surface economizer, tank holding absorbing solution, and also contact-surface or recuperating air heater and vane supercharger; in addition it is equipped with water economizer, drier, and regenerative gas heater which are communicating through water lines with heat storage; mounted upstream of thermal power unit along air line are fan and contact-surface air heater; disposed in tandem downstream of this unit in gas line are vane supercharger, water and contact-surface economizers, drier, regenerative gas heater, and chimney stack. EFFECT: enhanced coolant temperature, fuel utilization factor, and efficiency without raising flame lift at different loads and ambient temperatures. 48 cl, 4 dwg
