Flue heat recovery device

Details Flue heat recovery device Flue heat recovery device

1979-08-16

1981-12-01

Davis, Albert W.

Heat exchange

Movable heating or cooling surface

Rotary drum

165 78, 165DIG2, 165 95, 291573R, 16510414, 16510421, F28D 1500

Patent

active

043031226

ABSTRACT:
A flue heat recovery device for furnaces or boilers comprises a rectangular housing with a corrosion-resistant or corrosion-proof wall in the housing dividing the space into an air chamber and a flue gas chamber. The flue gas chamber has a gas inlet opening which can be connected to the flue of a furnace, and a gas outlet opening for discharging the flue gas from the flue gas chamber to a chimney. The air chamber has an air inlet and an air outlet, with a fan connected to the outlet for drawing air through the air chamber in a direction opposite to the flow of flue gas in the flue gas chamber. A plurality of finned heat pipes extend through the corrosion-proof wall from the flue gas chamber into the air chamber. The chambers are mounted on a base tray with the air chamber supporting the heat pipes and separable from the flue gas chamber for cleaning.

REFERENCES:
patent: 3884292 (1975-05-01), Pessolano et al.
patent: 4064932 (1977-12-01), Iriarte
patent: 4078602 (1978-03-01), Richer
patent: 4177858 (1979-12-01), Daman et al.
patent: 4189296 (1980-02-01), Hayes
patent: 4219073 (1980-08-01), Talmadge et al.

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