Dual-fuel burner

Details Dual-fuel burner Dual-fuel burner

1999-01-29

2000-05-30

Lazarus, Ira S.

Combustion

Fuel disperser installed in furnace

Plural feed means extending to common wall opening of furnace

431182, 431284, 239403, 239422, 239424, 239428, F23C 700, F23D 1116, B05B 710, B05B 706

Patent

active

060684704

ABSTRACT:
The present invention provides dual-fuel burners for the oxidation of liquid and of gaseous fuel with air. A dual-fuel burner is provided with an atomizer nozzle which generates a divergent spray cone of liquid fuel, and with an annular atomizer lip as an impact member for the liquid fuel spray cone. The dual-fuel burner has a primary channel for a first air stream through the spray cone and the inside of the atomizer lip, and a secondary channel for a second air stream over the outside of the atomizer lip with a common, coaxial mouth at an atomizer edge thereof. A channel for the gaseous fuel leads into the inside of the atomizer lip between the primary and secondary channels and discharges into one or both of the primary and secondary channels upstream of the atomizer edge.

REFERENCES:
patent: 3897200 (1975-07-01), Childree
patent: 4311277 (1982-01-01), Stratton
patent: 4600151 (1986-07-01), Bradley
patent: 4842197 (1989-06-01), Simon et al.
patent: 5062792 (1991-11-01), Maghon
patent: 5373693 (1994-12-01), Zarzalis et al.
patent: 5404711 (1995-04-01), Rajput
patent: 5417070 (1995-05-01), Richardson
patent: 5496170 (1996-03-01), Primdahl et al.
patent: 5782626 (1998-07-01), Joos et al.

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