CHIMNEY OPERATION METHOD Russian patent published in 2005 - IPC

FIELD: building, particularly for erecting electric power station chimney.

SUBSTANCE: method involves supplying air heated in air heater into air chimney duct formed between reinforced concrete shaft and lining defining gas vent duct; ejecting fuel gases moving through gas vent duct into upper atmosphere; directing heated air at the first through one part of air duct in bottom-top direction and then through another part thereof in top-bottom direction through annular box; supplying heated area to inlet box of air heater; admixing cold air to heated air to compensate air losses; moving the mixture of cold and heated air into air heater to increase air temperature and repeated supplying heated air to air chimney duct.

EFFECT: increased chimney operational efficiency.

1 cl, 2 dwg