Boiler fan arrangement

Details Boiler fan arrangement Boiler fan arrangement

1977-10-31

1978-12-26

Sprague, Kenneth W.

Furnaces

Fuel feeders

Blower

110304, 165 7, F23L 1500, F23K 104

Patent

active

041310730

ABSTRACT:
An arrangement for supplying air to a boiler-furnace whereby an axial flow fan being used as a source of primary air may selectively take suction air from the atmosphere or from the discharge side of a fan being used to provide secondary air to the boiler. This arrangement will provide an increased inlet pressure for the primary air fan to thereby achieve increased stability and high system pressure for low load operation, thereby permitting the effective use of an axial flow fan as a source of primary air when such usage would otherwise be unjustified.

REFERENCES:
patent: 2424587 (1947-07-01), Smith et al.
patent: 2694991 (1954-11-01), Marquez, Jr.
patent: 3273520 (1966-09-01), Hottenstine
patent: 3799242 (1974-03-01), Harris et al.

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