BOILER PLANT Russian patent published in 2019 - IPC F22B33/00 

FIELD: power engineering.

SUBSTANCE: invention relates to the field of power engineering. Boiler plant includes boiler with exhaust gas flue and exhaust gas recirculation flue connected to exhaust gas flue, i.d. fan and flue gas stack, blow fan, regenerative air heater, exhaust gas recirculation i.d. fan. Deaerator with pipelines for supply of initial and drainage of deaerated water is connected to exhaust gas flue between i.d. fan and flue gas stack along desorbing medium, and exhaust gas recirculation flue is connected to exhaust gas flue between deaerator and flue gas stack.

EFFECT: higher efficiency of boiler plant by excluding steam consumption for deaeration and introduction of flue gases into combustion zone of boiler furnace, which allows reducing temperature in most heat-stressed part of furnace and reducing concentration of oxygen in combustion zone.

1 cl, 1 dwg