FIELD: technological processes.
SUBSTANCE: invention concerns thermal power industry and can be applied in fume gas treatment and utilisation at thermal power stations. Aggregate includes transit gas duct connected over a window to case of heat exchange absorption unit with vertical transferline heat exchanger, fluid distributor, absorption section, filled nozzle with large equivalent diametre, and tray with conical bottom, all positioned in sequence downwards along gas flow, dryer, cooling desorption unit, pump feeding recovered absorbent connected by pipeline to fluid distributor of absorption section. Case of heat exchange absorption unit is connected to the window of transit gas duct by lifting gas channel with gate valve. Receiving chamber is positioned in front of heat exchanger in the case of the described unit, upper tray part of the unit enters open air via vent pipe equipped with deflector, bottom is connected by pipeline in sequence to the pump feeding saturated absorbent, vented steam cooler and condensate duct, while desorption cooling unit is connected to a throttle. Separation elements, fluid distributor, and desorption section filled with a nozzle of large equivalent diametre are positioned inside the desorption cooling unit in downward sequence, and bottom of the unit is connected by pipeline to recovered absorbent feeding pump mounted so as value H of surveying marks difference between absorbent layer in desorption cooling unit and axis of the pump creates underpressure surpassing underpressure in the case of this unit and in fluid distributor of heat exchange absorption unit. Upper part of heat exchange absorption unit is connected by gas pipe to vacuum pump, vented steam cooler and dryer.
EFFECT: enhanced process efficiency and aggregate operation reliability.
1 dwg
