FIELD: energy.
SUBSTANCE: invention relates to the field of energy and can be used in gas and combined-cycle plants (CCP) at thermal power plants to improve the efficiency of waste heat recovery from exhaust gases. A well-known recuperation power plant, containing an air duct to which an air compressor is connected, to which, in turn, the first inlet of the combustion chamber is connected, the outlet of which is connected to the inlet of a gas turbine, to the outlet of which, in turn, the first inlet of the Rankine cycle evaporator is connected (RC), the first output of which is connected to a steam turbine connected to the first inlet of the RC condenser, the first RC pump is connected to the first outlet of the RC condenser, the second RC pump is connected to the second inlet of the RC condenser, the second outlet of the RC condenser is configured to be connected to the cooling tower, the pipeline fuel, organic Rankine cycle evaporator (ORC), the first outlet of which is connected to the inlet of the turboexpander, the OCR condenser, to the first outlet of which the OCR pump is connected, the evaporator of the absorption refrigeration machine (ARM), one outlet of which is connected to the first inlet of the absorber, a solution pump is connected to the absorber outlet, which, in turn, is connected to the first input of the ARM heat exchanger; connected to the second input of the absorber, the first input of the ARM condenser is connected to the second output of the ARM generator, the first output of which is connected to the input of the refrigerant flow regulator, the output of which is connected to the second input of the ARM evaporator, the second output of the OCR evaporator is connected to the second input of the ARM generator, on the gas axis the turbine is equipped with a GT generator, a RC generator is located on the axis of the steam turbine, an OCR generator is installed on the axis of the turboexpander, equipped with a temperature sensor, a controller, a fuel control valve, a hydrogen pipeline, a thermal oil heat exchanger, a recuperator and a RC heat exchanger, while the temperature sensor is connected to the air wire and connected to the controller, to which the first input of the fuel control valve is connected, the second input of which is connected to the hydrogen pipeline, and the third input is connected to the fuel pipeline, the outlet of the fuel control valve is connected to the second inlet of the combustion chamber, the first inlet of the thermal oil heat exchanger is connected to the second outlet of the RC evaporator, the first outlet of the thermal oil heat exchanger is connected to the chimney, and its second outlet is connected to the first inlet of the OCR evaporator, the first inlet of the heat exchanger is connected to the outlet of the turboexpander, and its second input is connected to the ORC pump, the first outlet of the recuperator is connected to the first inlet of the ORC condenser, and its second outlet is connected to the second inlet of the ORC evaporator, the first inlet of the RC heat exchanger is connected to the first RC pump, and its second inlet is connected to the third outlet ARM generator, the first outlet of the RC heat exchanger is connected to the second inlet of the RC evaporator, and its second outlet is connected to the second inlet of the thermal oil heat exchanger, the first inlet of the ARM evaporator is connected to the second outlet of the OCR condenser, the second input of which is connected to another outlet of the ARM evaporator.
EFFECT: improvement of the efficiency of waste heat recovery from exhaust gases.
1 cl, 1 dwg
