Zeeco, Inc.

John McDonald

Darton J Zink

Rex K Isaacs

Tim Kirk

Cody Little

David J Surbey

Seth A Marty

Ryan E Roberts

Jonathon E Barnes

Tim Minihan

John Philip Guarco

Frank E Beale

Parker Imel

Ryan Roberts

Cody L Little

Seth Marty

Jonathon Barnes

A burner apparatus for a furnace system and a method of burner operation wherein a non-symmetrical positioning of one combustion fuel discharge tip or a grouping of fuel discharge tips within the burner wall produces side-by-side lean and fuel rich combustion stage zones and also produces internal flue gas recirculation.

[object Object]

A burner apparatus for a furnace system and a method of burner operation. The burner has a series of fuel ejection structures which at least partially surround the burner wall for ejecting fuel into a combustion region projecting from the forward end of the burner wall. The ejection structures preferably eject fuel outside of the burner wall at alternating angles. Further, the burner apparatus preferably includes at least one additional series of fuel ejection structures which is spaced radially outward from the first series of ejection structures.

A low NOburner and method wherein (a) combustion air flows through the interior of the burner in a manner effective for drawing an amount of inert flue gas diluent from the fired heating system into the combustion air stream, preferably via one or more induction channels provided through the burner wall, and/or (b) air or an inert gas is discharged into the induction channel(s) in a manner effective for delivering flue gas into the combustion air stream.

Burner and method for induction of flue gas

A burner and combustion method for a radiant wall heating system wherein each burner fuel ejector is positioned such that at least a substantial portion of the burner combustion air is discharged from an area beyond the ejector located the greatest distance from the radiant wall.

Combustion apparatus and method for radiating wall heating system

An improved combustion assembly including a venturi mixer and a combustion tip attached to the discharge end of the venturi divergent section. The improvement comprises eliminating abrupt contractions and sudden expansions of the interior flow passage at the venturi mixer and combustion tip interface.

Venturi mixer and combustion assembly

An improvement for an ejector having at least one discharge port effective for delivering a flow of fuel into a heating system such that flue gas in the heating system is entrained in the flow of fuel. The improvement comprises the ejector having an aerodynamic shape effective for increasing entrainment of the flue gas in the flow of fuel at the region of discharge adjacent the discharge port.

Fuel ejector and method for reduced NOx emissions

A burner and method for reducing NO emissions from process heaters, boilers, and other heating systems having flue gases present therein. The inventive burner and method preferably involve the single stage combustion of fuel gas which is ejected outside of a burner wall in free jet flow such that at least a portion of the flue gas is entrained in the fuel gas as it travels to a combustion zone at the forward end of the burner wall. Air or other oxygen-containing gas is preferably delivered to the combustion zone via an interior passageway. The inventive burner preferably comprises a plurality of ejectors positioned outside of the burner wall and preferably also comprises one or more exterior impact structures positioned to assist in further mixing the flue gas with the fuel.

Low NOx burner apparatus and method

An improved burner for combustion of fuel gas with air in a manner to result in low NO , the burner is generally circular and has a refractory tile and gas tips. The gas tips are spaced around the outer circumference of a generally circular passageway in the burner tile, each gas tip is positioned to cause the fuel gas to entrain furnace flue gas. Each gas tip has one or more ports, an ignition port and at least one firing port. The ignition port injects fuel through a passageway to the burner tile. The firing port injects fuel gas in the direction that is generally upward with respect to the pathway of the ignition port. This causes fuel gas to entrain combustion products from the flue gas, the resulting mixture of fuel gas and flue gas is directed out of the burner tile to mix with combustion air that is discharged through the burner tile.

Low NoX burner apparatus

A flow divider for use in a gas burner assembly supported in an opening in a furnace wall has injected fluid, such as gas and/or air, flowing through an inner burner pipe then outwardly through a plurality of openings for burning along the surface of a wall thus providing a near uniform radiant heat energy to the furnace. The flow divider has a plurality of nested members and a plurality of in-line members to divide the flowing gas and/or air to improve distribution and to promote more uniform mixing of the gas and air.

Flow divider for radiant wall burner

A burner for combusting fuel gas and air in an enclosure having a burner block member of non-combustible material, such as ceramic, having a central rectangular or square opening. Said burner block being located between the surface to be heated and an enclosure wall opposite said surface, said central rectangular or square block opening being used to shape the combustion flame in a flat or fan shaped fashion parallel to the enclosure wall surface. In such an arrangement, the burner's purpose is to direct combustion flame upon the enclosure wall which is heated by the flame and radiates heat back towards the surface area to be heated and to reduce the oxygen content which serves to reduce the peak flame temperature of the combustion process to thereby reducing NO.sub.x production.

Growing community of inventors

Broken Arrow, OK, United States of America

John McDonald