Combustion – Fuel disperser installed in furnace – Plural feed means extending to common wall opening of furnace
Patent
1990-03-12
1991-09-03
Jones, Larry
Combustion
Fuel disperser installed in furnace
Plural feed means extending to common wall opening of furnace
431 11, 431 9, 126 99R, F23M 900, F23M 300
Patent
active
050449354
ABSTRACT:
In a firing plant which is operated with fossil fuels, the exhaust gases (A) from the combustion space (22) are cooled in a heat exchanger (X). A part of these cooled exhaust gases (A') are mixed with fresh air (L) and are conducted by means of a fan (D) in the direction of the burner (Z). This exhaust gas/fresh air mixture forms the combustion air (15) for the burner (Z). Before the introduction of this combustion air (15) into the burner (Z), it is again heated in the heat exchanger (X'). The combustion air (15) preheated in this way ensures complete evaporation of a liquid fuel (12) and acts against the high flame temperature peaks in the combustion space (22) immediately after the burner (Z), which are responsible for the formation of NO.sub.x. The burner (Z) can be operated with liquid and/or gaseous fuel.
REFERENCES:
patent: 4595356 (1986-06-01), Gaysert et al.
patent: 4929172 (1990-05-01), Zinn et al.
patent: 4932861 (1990-06-01), Keller et al.
Patent Abstracts of Japan, vol. 8, Nr. 124 (M-301) (1561), Jun. 9, 1984.
Asea Brown Boveri Ltd.
Jones Larry
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