Liquid heaters and vaporizers – Automatic control of fluid fuel and water – Once through
Patent
1987-01-09
1987-09-22
Favors, Edward C.
Liquid heaters and vaporizers
Automatic control of fluid fuel and water
Once through
122 1A, 122106R, F22B 3742, F22D 500
Patent
active
046947833
ABSTRACT:
Disclosed is a heating system of the multiple condensing boiler type wherein hot exhaust gases are in heat exchange relation with the condensate in a manifold common to the boilers. The exhaust gas conduits from the boilers open into the manifold at a level below the condensate level to prevent backflow of exhaust gases from active to idle boilers and enable the exhaust gases to bubble through the condensate in improved heat exchange relation therewith. A single outlet vents the exhaust gases from the manifold. The hot condensate is circulated in heat exchange relation with incoming atmospheric air in a second manifold common to the boilers for preheating the air flowing to the boilers. The cooled condensate is recirculated back to the first manifold. A single intake provides the incoming air to the second manifold.
REFERENCES:
patent: 1544310 (1925-06-01), Gibson
patent: 1860364 (1932-05-01), Lamont
patent: 4564142 (1986-01-01), Cleer
patent: 4583497 (1986-04-01), Likins, Jr. et al.
Hydro Therm brochure "Pulse Combustion Heating Plants".
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