Low NOx emission burners
Method and apparatus for reducing NOx from furnaces
Fuel combustion method and burner for furnace use Patent #: 4357134
ApplicationNo. 06/425701 filed on 09/28/1982
US Classes:431/8, Flame shaping, or distributing components in combustion zone431/10, Oxidizer added to region of incomplete combustion431/181, Plural feed means extending to common wall opening of furnace431/187, Feeds discharged coaxially431/190Water, air or steam feeder spaced from disperser
ExaminersPrimary: Dority, Carroll B.
Attorney, Agent or Firm
International ClassF23C 7/00 (20060101)
Foreign Application Priority Data1978-12-21 JP
AbstractA method an apparatus for combustion with a minimum of NOx emission in various industrial furnaces and boilers. By injecting air for combustion into a furnace through the burner tile or air baffle in the deviated flow pattern asymmetrical with respect to the burner tile or baffle axis, the quick mixing of the air and fuel in early stages of combustion is suppressed to provide for a relatively gentle combustion and allow the burnt gas self-circulation to take place effectively, thereby minimizing the emission of nitrogen oxides.
Field of SearchFlame shaping, or distributing components in combustion zone
Oxidizer added to region of incomplete combustion
Plural feed means extending to common wall opening of furnace
Feeds discharged coaxially
Air chamber with inlet control surrounds disperser at wall
Water, air or steam feeder spaced from disperser