Low NO.sub.x burner
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United States of America Patent
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-
Oct 24, 1995
Issued Date -
N/A
app pub date -
May 16, 1994
filing date -
Nov 16, 1990
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A burner structure and a method of operating a burner to reduce the pollutant emissions produced thereby are disclosed. Air and gas are premixed in a manner such that a substantially homogeneous mixture containing excess combustion air results. The velocity of the substantially homogeneous mixture is increased as it passes through the burner causing the 'residence time' associated with the formation of the flame to be decreased, i.e., the combustion gases are in the reaction zone of the flame for a significantly shorter period of time, reducing the production of NO.sub.x. In order to prevent the flame from 'lifting-off' the burner because of the high velocity of the substantially homogeneous air/gas mixture, flame stabilizing devices and/or a burner structure which provides flame stabilization are utilized resulting in the production of a high heat flux and low pollutant emissions.
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