F - Mech Eng,Light,Heat,Weapons – 23 – M
Patent
F - Mech Eng,Light,Heat,Weapons
23
M
158/149
F23M 9/00 (2006.01) F23C 7/00 (2006.01) F23D 17/00 (2006.01)
Patent
CA 1195228
BURNER AND METHOD Abstract of the Disclosure An industrial burner having an axial recirculation flame with active vortex mixing in the combustion chamber and method. The invention relates to an improved industrial heat- ing burner and method. The burner is of the type used to fire industrial furnaces for a number of applications, including melting aluminum, heat-treating and normalizing metal parts, and firing ceramics and glassware. The burner efficiently burns gas or No. 2 through No. 6 fuel oils or combinations of oil and gas. Violent intermixing of the fuel and gases in the burner combustion chamber is achieved by generating seed vortexes at a number of locations spaced around the combustion chamber, amplifying the seed vortexes and flowing the enlarged vor- texes through the chamber as part of a recirculation flow. The vortexes are formed by flowing primary air and fuel and secondary air at an angle across the downstream edge of a cone separating the flows so that the flows shear against each other. The vortexes are amplified by the shearing flows as they move downstream from the edge for active intermixing of the flows. The vortexes are stabilized by high-pressure secondary air flows spaced around the circum- ference of the burner. The active intermixing of the constituents within the combustion chamber forms a very intense and efficient flame. The flame has a high exit velocity which is -1-
414704
Nowak Leonard G.
Wojcieson Raymond J.
Hauck Manufacturing Company
Kirby Eades Gale Baker
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