BOILER Russian patent published in 2012 - IPC F22B31/00 

FIELD: power industry.

SUBSTANCE: boiler includes gas duct with afterburner chamber, furnace, bottom hopper and fuel pipeline, as well as tubular waterwall arranged in gas duct and forming vertical air duct, and vertical division walls located in afterburner chamber above gas distributing grid under convection heating surface units. Furnace height H1, distance from vertical air duct to the mouth of furnace bottom hopper is chosen depending on diameter D1 of vertical air duct from ratio H1=0.5÷8 D1; furnace diameter D2 and diameter of afterburner chamber D3 is chosen from ratio D2 and D3=1.5÷8 D1, and height of afterburner chamber H2 from gas distributing grid to upper part of division walls is chosen from ratio H2=1÷12 D1.

EFFECT: reduction of costs due to unification of the boiler design for combustion of all types of organic fuel in it.

4 dwg