METHOD OF BLADELESS STRENGTHENING OF DRAW IN SMOKE AND VENT DUCTS AND DEVICE FOR BLADELESS STRENGTHENING OF DRAW IN SMOKE AND VENT DUCTS Russian patent published in 2009 - IPC F23L17/16 

FIELD: heat-and-power engineering.

SUBSTANCE: invention relates to energetics and is directed for excluding at displacement of aggressive and combustion gas, smoke exhausts and ventilating fans, particularly in fire - explosive manufactures. Method of bladeless strengthening of draw of smoke and vent ducts consists in usage for creation of draw of rising streams of its energo-potentials and kinetic energy, for this elementary turbulent convection upflow is created in hopper - cone ensured tangential supplied compressed air, in the middle of turbulent convection upflow there are fed second flanges of removed gas with huge temperature drop. Device for bladeless strengthening of draw of smoke and vent ducts consists of vortex cavity in the bottom part tangential nozzle for supply of compressed air, in top part - on it is installed cone-pocket, intercepting condensate and sludge. Cone-pocket is conjugate to built-up cone, allowing flange for connection to pipe lateral.

EFFECT: invention provides removing of aggressive and combustion gas with hight temperature ensured by vortex turbulent convection upflow, using energy resources of flows itself.

3 cl, 2 dwg