F - Mech Eng,Light,Heat,Weapons – 23 – C
Patent
F - Mech Eng,Light,Heat,Weapons
23
C
158/18
F23C 5/08 (2006.01) F23D 14/02 (2006.01) F23D 14/12 (2006.01) F23D 14/20 (2006.01) F23D 14/34 (2006.01) F23D 14/66 (2006.01)
Patent
CA 1132038
ABSTRACT OF THE DISCLOSURE A multi-fuel gas burner using preheated forced draft air, com- prising a cylindrical inner burner tube, supported by the wall of a furnace, and inserted into an opening in said wall, and including means to inject through the upstream end combustion air preheated to a selected temperature, and compressed to a selected pressure. The downstream end of the inner burner tube is closed, and there is a plurality of longitudinal slots, cir- cumferentially spaced, in the wall of the tube at the closed end. Rich fuel gas up to 3,500 btu/cu feet is injected under selected pressure into the inner burner tube along its axis. An outer burner tube axially surrounds the inner burner tube and there is an annular passage therebetween. Low pressure, lean, combustible gas of as low as 50 btu/cu feet is passed down the annular passage and outwardly through a circumferential slot at the end of the outer burner tube inside the furnace. The hot combustion air and rich gas flowing through the inner tube and radially outwardly and rearwardly through the plurality of slots, flow against and mix with the lean gas flowing outwardly through the circumferential slot, and burn against the surface of a tile, having a central opening, through which the burner is inserted into the furnace.
328921
Glomm Horst M.
Reed Robert D.
Sawatski Klaus E.
Zink John S.
Smart & Biggar
Zink (john) Company
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