Non-symmetrical low NO_xburner apparatus and method

摘要

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.

主权项

1. A burner apparatus comprising:
a burner wall having a forward end, wherein
said burner wall surrounds an air flow passageway which extends through said burner wall,said air flow passageway has a forward discharge opening at said forward end of said burner wall, andsaid burner wall has a longitudinal axis which extends through said air flow passageway and said burner apparatus having within said air flow passageway surrounded by said burner wall only one combustion fuel discharge tip assembly, said combustion fuel discharge tip assembly within said air flow passageway comprising
a single combustion fuel discharge tip having a forward end anda flame stabilizing structure located at, forwardly of, or rearwardly of said forward end of said combustion fuel discharge tip, wherein said combustion fuel discharge tip is located laterally outward with respect to said longitudinal axis of said burner wall at a position which is between said longitudinal axis and said burner wall.