Combustion – Process of combustion or burner operation – Flame shaping – or distributing components in combustion zone
Patent
1993-12-13
1995-05-09
Dority, Carroll B.
Combustion
Process of combustion or burner operation
Flame shaping, or distributing components in combustion zone
431116, 431190, 431351, 431164, F23M 300
Patent
active
054134773
ABSTRACT:
A gas-fired burner incorporating an air driven jet pump for mixing air, fuel, and recirculated flue gas with reduced heat loss from the recirculated flue gas is disclosed. The burner is configured for the staged introduction of combustion air to provide a fuel-rich combustion zone and a fuel-lean combustion zone. Internal flue gas channels deliver cooled flue gas to the primary fuel-rich combustion zone. A valve assembly may be provided to control the flow of flue gas. Secondary air channels concentrically arranged within the flue gas channels deliver superheated, staged air to the secondary fuel-lean combustion zone. Heat is transferred from the hot flue gas to the counterflowing cooler secondary air. The burner achieves reduced NO.sub.x emission levels in high temperature applications which use preheated combustion air with no or minimal loss in thermal efficiency from flue gas recirculation.
REFERENCES:
patent: 1342901 (1920-06-01), Good
patent: 1911177 (1933-05-01), Beck
patent: 2002448 (1935-05-01), Dodge
patent: 3097686 (1963-07-01), Morrow
patent: 3730668 (1973-05-01), Iida et al.
patent: 3868211 (1975-02-01), Haye et al.
patent: 3890088 (1975-06-01), Ferri
patent: 3990831 (1976-11-01), Syska
patent: 4007001 (1977-02-01), Schirmer
patent: 4021188 (1977-05-01), Yamagishi et al.
patent: 4083677 (1978-04-01), Hovis
patent: 4445842 (1984-05-01), Syska
patent: 4500281 (1985-02-01), Beardmore
patent: 4504211 (1985-03-01), Beardmore
patent: 4629413 (1985-12-01), Michelson et al.
patent: 4797087 (1989-01-01), Gitman
patent: 4800866 (1989-01-01), Finke
patent: 4828483 (1989-05-01), Finke
patent: 4900246 (1990-02-01), Schirmer et al.
patent: 4942832 (1990-07-01), Finke
patent: 4995807 (1991-02-01), Rampley et al.
patent: 5015174 (1991-05-01), Dreizler et al.
patent: 5044931 (1991-09-01), Van Eerden et al.
patent: 5044932 (1991-09-01), Martin et al.
patent: 5092761 (1992-03-01), Dinicolantonia
patent: 5131838 (1992-07-01), Gensler et al.
patent: 5350293 (1994-09-01), Khinkis et al.
Dority Carroll B.
Gas Research Institute
LandOfFree
Staged air, low NOX burner with internal recuperative flue gas r does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Staged air, low NOX burner with internal recuperative flue gas r, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Staged air, low NOX burner with internal recuperative flue gas r will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1701342