Condensing furnace with corrosion suppression

Details Condensing furnace with corrosion suppression Condensing furnace with corrosion suppression

1985-10-07

1986-08-05

Favors, Edward G.

Stoves and furnaces

Hot-air furnaces

Compressed air

126 99R, 126116R, F24H 302

Patent

active

046036814

ABSTRACT:
A forced hot air furnace having a continously wet condensing heat exchanger. The heat exchanger has an upwardly inclined first segment connected in series to a downwardly inclined second segment. Combustion products are first passed across a water reservoir thereby becoming sufficiently elevated in dew point to condense within the first segment resulting in all wet first segment operation. Condensate formed in the first segment will drain downward opposite the flow of combustion products, into the water reservoir. Since combustion products entering the second segment have been cooled to less than their dew point, the second segment will also operate in the all wet mode. Condensate flows down the second segment into a sump for transfer to the water reservoir.

REFERENCES:
patent: 4069809 (1978-01-01), Hartig
patent: 4318392 (1982-03-01), Schreiber et al.
patent: 4449511 (1984-05-01), Hays et al.
patent: 4524754 (1985-06-01), Schubert

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