Boiler

Details Boiler Boiler

1981-08-10

1982-10-26

Yuen, Henry C.

Liquid heaters and vaporizers

Water tube

Wall structure

122 6A, 122155A, 122135F, 122155F, F22B 1500, F22B 700

Patent

active

043556027

ABSTRACT:
A highly efficient boiler is made up of a housing containing upper and lower left and right water manifolds. Tubes connect the left manifolds and other tubes the right manifolds. The tubes are bent toward one another to form a plurality of superposed chambers through which combustion gases must successively flow, from front to back in one chamber and from back to front within the next. Baffles may be provided in each chamber to cause the gas to traverse a sinuous path from left to right and right to left within each chamber. Adjustment of the baffles can be effected during operation to keep the combustion gas exit pressure or temperature or flow rate constant notwithstanding changes in the liquid flow rate through the tubes or the rate of combustion of fuel in the lowermost chamber.

REFERENCES:
patent: 2033077 (1936-03-01), Kerr et al.
patent: 2119606 (1938-06-01), Stauffer
patent: 2633107 (1953-03-01), Mandelburg
patent: 2826182 (1958-03-01), Mandelburg
patent: 3195516 (1965-07-01), Votkauf
patent: 3382848 (1968-05-01), Northcote et al.
patent: 3478724 (1969-11-01), Brunner
patent: 3703161 (1972-11-01), O'Connor
patent: 4123995 (1978-11-01), Ek
patent: 4206723 (1980-06-01), Kunkel
patent: 4237824 (1980-12-01), Svensson

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