Flat wall-attaching flame ultralow NOx gas burner

Abstract

The invention discloses a flat wall-attaching flame ultralow NOx gas burner which is arranged inside a heating furnace. The flat wall-attaching flame ultralow NOx gas burner comprises a burner body, an incandescent light, an external gas gun part, an internal gas gun part, a tee joint, a brazier brick, an air adjusting mechanism, a flame detection part, an ignition hole, a fire observation hole, 2-4 external gas gun grooves and two adjusting ball valves. The brazier brick is of a hollow structure. The upper half of the brazier brick inclines inwards to form an ejection gas surface. The ejection gas surface is in a radial shape from the root to the upper portion and comprises three inclined surfaces, and the inclination angles of every two adjacent inclined surfaces are different. The brazier brick is internally provided with a combustion supporting air channel communicating with the interior of the burner body. The horizontal cross section of the lower half of the combustion supportingair channel is in a rectangle shape. Three side faces of the upper half of the combustion supporting air channel incline outwards, and the other one side face of the upper half of the combustion supporting air channel inclines inwards. The flat wall-attaching flame ultralow NOx gas burner is capable of reducing NOx emission, high in adaptability, not prone to blow-off, short in flame, good in wall-attaching effect, even in temperature distribution, low in noise and environmentally friendly.

Description

technical field [0001] The invention relates to burner equipment for petrochemical heating furnaces, in particular to a flat wall flame ultra-low NOx gas burner. Background technique [0002] Most of the traditional wall-attached coking burners have poor adaptability, easy to fire off, long flame, poor wall-attachment effect, and it is difficult to adjust the distribution ratio of multiple groups of nozzles for fuel classification, which is not conducive to the suppression after adjusting the burner power according to the working conditions NOx production effect. [0003] In addition, most of the flame transition of traditional coking wall burners is concentrated on the furnace wall, resulting in uneven temperature distribution on the coking furnace wall, which eventually leads to uneven temperature on the coking furnace tube, and local over-temperature areas are prone to severe coking , At the same time, part of the furnace wall lining is damaged, which greatly shortens th...

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Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a NOx burner for the above-mentioned prior art to solve the shortcomings of similar burner products such as substandard NOx emissions, poor adaptability, easy fire off, long flame, p

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