Heating – Work chamber having heating means – Combustion products heat work by contact
Patent
1999-06-01
2000-09-05
Ferensic, Denise L.
Heating
Work chamber having heating means
Combustion products heat work by contact
431 11, 431180, 431187, 431215, F23D 1144
Patent
active
061133892
ABSTRACT:
An oxygen enrichment system is provided which uses the existing air/fuel burners of a regenerative furnace to distribute additional oxygen to the burners for increased efficiency, and reduced nitrous oxide emissions. The centrally positioned cooling air lances in the burners of a regenerative furnace are modified to deliver oxygen when the burners are firing for oxygen enrichment. During the burner firing cycle, oxygen is delivered from an oxygen supply through the oxygen lance to provide a central oxygen jet. The fuel is delivered concentrically around the oxygen jet. During the non-firing cycle of the burner, cooling air or other cooling fluid is delivered from the cooling air supply through the oxygen jet for cooling the offside of the furnace.
REFERENCES:
patent: 4375235 (1983-03-01), Tsai
patent: 5743723 (1998-04-01), Iatrides et al.
patent: 5823769 (1998-10-01), Joshi et al.
patent: 5833447 (1998-11-01), Bodelin et al.
Borders Harley A.
Charon Olivier
Joshi Mahendra L.
American Air Liquide Inc.
Ferensic Denise L.
Wilson Gregory A.
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