F - Mech Eng,Light,Heat,Weapons – 23 – D
Patent
F - Mech Eng,Light,Heat,Weapons
23
D
158/17
F23D 14/12 (2006.01) F23D 14/22 (2006.01) F23D 14/34 (2006.01)
Patent
CA 1183767
ABSTRACT OF THE DISCLOSURE A forced draft, radiant wall, fuel burner has a central circular pipe for pressurized combustion air and a second larger diameter pipe coaxial with the air pipe, with pressurized gas supplied to the closed annular space between the two pipes. The inner pipe extends forwardly beyond the end of the outer pipe. Fuel orifices are drilled in the forward end of the annular space, so that the gas flow will be parallel to the axis of the pipes. A second series of gas orifices are drilled through the outer wall of the second tube so that the gas flow is radial along the front of the burner tile. A plurality of air ori- fices are drilled radially in the forward end of the air pipe, so that the air flow is radial and directed perpendicularly against the principal longitudinal gas flow. The air tube spreads conically outwardly at its forward end. There are a plurality of longitudinal slots for radial flow of air outwardly against a cylindrical wall which is part of a circular plate over the forward end of the air pipe. The air from the slots is deflected by the cylindrical wall and flows generally in a reverse direction against the flow of the gas from the end ori- fices. The two flows of air provide turbulent and complete mixing with the gas. The burning gas and flame then move radially outwardly in a circular sheet along the front of the tile, to heat the tile to incandescence, so as to radiate heat to the heat receptive surfaces of the boiler.
391705
Fischer Dieter
Glomm Horst M.
Sawatzki Klaus E.
Smart & Biggar
Zink (john) Company
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