Reduced NOx method of combustion

a nox method and low nitrogen oxide technology, applied in the field of low nitrogen oxide method of combustion, can solve the problems of substantial added capital expense of piping and controlling the recirculated flue gas, difficult to predict factors, and increased no/sub>x/sub>emissions, and achieve the effect of lowering nox emissions
US20060246388A1Inactive Publication Date: 2006-11-02HAUKE MFG
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Patent Information

Authority / Receiving Office
US · United States
Patent Type
Applications(United States)
Current Assignee / Owner
HAUKE MFG
Publication Date
2006-11-02
Estimated Expiration
Not applicable · inactive patent

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Abstract

The present invention is a method for achieving low NOx single-stage combustion. A high velocity burner is run normally, with combustion occurring within both the burner combustion chamber and furnace chamber, until the gases within the furnace exceed the auto-ignition temperature of the gaseous fuel. The gaseous fuel is then shut off until the temperature within the burner combustion chamber drops below the auto-ignition temperature of the gaseous fuel. The gaseous fuel is then turned back on and the gaseous fuel auto ignites within the furnace chamber. The combustion then occurs only within the furnace chamber and not in the burner combustion chamber.
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Description

CROSS-REFERENCE TO RELATED APPLICATIONS

[0001] This application claims the benefit of U.S. Provisional Application No. 60 / 675,975 filed Apr. 29, 2005, which application is hereby incorporated by reference in its entirety.FIELD OF THE INVENTION

[0002] The present invention is generally directed to a method of combustion and specifically directed to a low nitrogen oxide method of combustion. BACKGROUND OF THE INVENTION

[0003] One of the by-products created by the combustion of hydrocarbon (HC) fuels in burners that use atmospheric air is nitrogen oxide (NOx). A well-known problem in the industry for many years with the use of conventional burner designs utilizing preheated combustion air is higher flame temperatures which in turn contribute to an exponential increase in NOx emissions. Efforts to save fuel and increase combustion efficiency via recuperative and / or regenerative combustion systems combined with increasingly strict governmental regulations to achieve acceptable NOx emissi...

Claims

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