Low NO/sub x/ burner
A low NO/sub x/ burner is disclosed for a furnace operating under natural draft in which primary and secondary combustion air are provided to a first burning zone, in which either or both liquid and gaseous fuel can be used. Less than stoichiometric air is supplied in the primary burning zone and tertiary combustion air is supplied in a second combustion zone downstream from the first combustion zone. The total air supply is over the stoichiometric requirement. Air control means is provided so that a fixed ratio of primarysecondary air/tertiary air is provided for all burning and fuel rate conditions, so as to maintain the less than stoichiometric air supply to the first combustion zone. In addition, water atomization is provided upstream of the first burning zone to provide a burning chemistry which favors the reduction of NO/sub x/ in the first burning zone.
- Assignee:
- Zink, John Co
- Patent Number(s):
- US 4257763
- OSTI ID:
- 6000964
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
421000* -- Engineering-- Combustion Systems
AIR FLOW
AIR POLLUTION ABATEMENT
ATOMIZATION
BURNERS
CHALCOGENIDES
DESIGN
FLUID FLOW
FUEL-AIR RATIO
FURNACES
GAS BURNERS
GAS FLOW
GAS FURNACES
HYDROGEN COMPOUNDS
NITROGEN COMPOUNDS
NITROGEN OXIDES
OIL BURNERS
OIL FURNACES
OXIDES
OXYGEN COMPOUNDS
POLLUTION ABATEMENT
WATER