Recuperative burner

Combustion – Process of combustion or burner operation – Flame shaping – or distributing components in combustion zone

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

431174, 431175, 431284, 431215, F23Q 900

Patent

active

044539134

ABSTRACT:
A pair of burner tubes are arranged in concentric relationship. Fuel and air in a rich fuel-air ratio is provided to the central burner tube, and fuel and air in a lean fuel-air ratio is provided to the outer burner tube. The rich combination of fuel and air is partially burned at a temperature of about 2,500.degree. F. while the lean combination of fuel and air is burned at a temperature of less than 2,800.degree. F., and the flames from the burner tubes are mixed at the ends of the burner tubes to form a final flame envelope and to finish the combustion of the rich mixture. Exhaust gas is directed about the burner tubes, and combustion supply air is circulated about and preheated by the exhaust gas conduits and the outer burner tube. The separate combustion of the rich and lean fuel-air mixtures at relatively low temperatures and the subsequent mixing of the flames from the burner tubes results in low NOx emissions and results in high luminosity of the final flame envelope.

REFERENCES:
patent: 1995934 (1935-03-01), Mangold
patent: 2138998 (1938-12-01), Brosius
patent: 2806516 (1957-09-01), Brola
patent: 2971577 (1961-02-01), Wallace
patent: 3092166 (1963-06-01), Shepherd
patent: 3135626 (1964-06-01), Moen et al.
patent: 3330485 (1967-07-01), Misner
patent: 3592622 (1971-07-01), Shepherd
patent: 3649206 (1972-03-01), Ivernel
patent: 3685740 (1972-07-01), Shepherd
patent: 3734719 (1973-05-01), Estes et al.
patent: 4210411 (1980-07-01), Ward et al.
patent: 4257762 (1981-03-01), Zink et al.
patent: 4291190 (1981-09-01), Elsner et al.
Selas, Bulletin DNS-R "DNS-Recoup Burner with Integral Recuperator", 4 pages.
Institute of Gas Technology "Fine-Ground Coal Combustion", 4 pages.
Eclipse, Eclipse Combustion Division of Eclipse Inc., "Eclipse Medium Velocity Air Burner/Recuperator Package", H-350 Bulletin, New 6/81, 3 pages.
R. C. Bojko, M. J. Khinkis, R. T. Waibel of Inst. of Gas Tech. Engy. Dev. Center and W. D. Boyd of Southern Calif. Gas Co., "Experimental Study of the Effect of Air Preheat Up to 1200.degree. on No Emissions", p. 4-1 to p. 4-17.
J. M. Bailey & G. Whitaker, Presentation 10B, FIA Symposium, 1-81, "Energy Savings by the Use of Recuperative Burners in the Forging Industry", Cover & pp. 1-15.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Recuperative burner does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Recuperative burner, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Recuperative burner will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-119535

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.