SMOKE STACK Russian patent published in 1997 - IPC

FIELD: power engineering; devices for removal of flue gases from power-plant boilers. SUBSTANCE: smoke stack has gas discharge tube, hot and cold gas ducts, distributors, nozzles of different direction; unidirectional nozzles are mounted within distributor in alternating manner and those located in adjacent distributors are shifted by magnitude of nozzle pitch. Angle of inclination of nozzles is no less than 30 to 40 deg. Hot flow enters distributors and then flows to mixing chamber through nozzles where it is mixed with cold flow. EFFECT: enhanced reliability and durability of tube. 2 cl, 2 dwg