OPERATING METHOD FOR THE BOILER PLANT Russian patent published in 2022 - IPC F22B33/18 

FIELD: thermal power engineering.

SUBSTANCE: invention relates to the field of thermal power engineering and can be used in boiler plants operating on natural gas. The method for operation of the boiler plant, according to which feed water, organic fuel and air are supplied to the boiler, fossil fuel is burned in the boiler and steam is produced, blowdown water, steam and combustion products are removed from the boiler, which are cooled in the superheater, water economizer, air heater and condensing surface heat exchanger, the blowdown water discharged from the boiler is sent to the continuous blowdown expander, the secondary water vapor formed in the continuous blowdown expander from the purge water is sent through the steam pipeline to the flow of outgoing combustion products by means of a steam distribution device made in the form of a perforated manifold and installed in the gas duct in front of the condensing surface heat exchanger along the combustion products, the secondary water vapor is condensed on the outer surface of the condensing surface heat exchanger, the outgoing combustion products cooled in the condensing surface heat exchanger below the dew point are heated in the recuperative heat exchanger by the concentrate discharged from the continuous blowdown expander - unevaporated blowdown water and discharged into the atmosphere.

EFFECT: increasing the efficiency of the boiler plant.

1 cl, 1 dwg