Liquid heaters and vaporizers – Water tube
Patent
1989-08-29
1991-06-04
Bennett, Henry A.
Liquid heaters and vaporizers
Water tube
12223523, 122136R, F22B 1500
Patent
active
050204793
ABSTRACT:
A watertube boiler for all types of boilers including natural circulation, forced circulation and one-through types. The boiler includes a plurality of heat absorption water tubes forming a heat absorption watertube unit in the furnace. The heat absorption watertube unit comprises a relatively dense arrangement of heat absorption water tubes disposed in the combustion path of the burner, such that the flame of the burner impinges on the unit. The heat absorption watertube unit can be arranged in the first stage of a watertube boiler having at least one additional furnace stage receiving exhaust gas from the first stage. The additional stage can be disposed either perpendicularly and horizontally, and the air/fuel mixture in each stage is maintained at a specificied ratio to optimize combustion of the fuel. A method of operating a watertube boiler having three stages is also provided. By using the watertube boiler and method, the generation of nitrogen oxides can be controlled and the volume of the boiler can be reduced.
REFERENCES:
patent: 1683046 (1928-09-01), Murray
patent: 1975503 (1934-10-01), Engler
patent: 2656157 (1953-10-01), Wasielewski
patent: 2674981 (1954-04-01), Clarkson
patent: 3247830 (1966-04-01), Vogler
patent: 3675629 (1972-07-01), Stevens
patent: 3810447 (1974-05-01), Grainger
patent: 4044727 (1977-08-01), Rychen et al.
patent: 4245588 (1981-01-01), Gill et al.
patent: 4421065 (1983-12-01), Tillequin
Moriyama Takashi
Suesada Yasuhiko
Sugioka Junichi
Tahara Hiroshi
Bennett Henry A.
Gromada Denise L.
Hirakawa Iron Works Ltd.
The Kansai Electronic Power Company Inc.
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