Natural draft low swirl burner
AssigneeThe Regents of the University of California
InventorsRobert K. Cheng, David Littlejohn
Life of this patent
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Abstract
A new design for a low swirl burner is disclosed in which natural draft rather than a motorized pump is used to move a fuel-air mixture through the burner. This new design enables the burn off of gas at refineries in an environment where electric motors cannot be used because of the potential for sparks, which could trigger explosions. Additional modifications to the burner, including the introduction of flue gas to the burner allows for the reduction of NOx gas to meet current emission control targets, without the need for further post combustion emission control systems.
Claims5
A natural draft Low Swirl Burner (LSB) including an air entrainment system driven by one or more jets of fuel, wherein the fuel is introduced in such a way as to create a well-mixed fuel-air blend and establish a flow pattern having the appropriate swirl number for the low swirl burner into which it is introduced.
Dependencies are inferred from the claim text.