Heat exchange – With protector or protective agent
Patent
1979-04-09
1981-01-06
Favors, Edward G.
Heat exchange
With protector or protective agent
122 1A, 122DIG1, 122DIG2, F28F 1900
Patent
active
042430968
ABSTRACT:
In an air heater, mixers of hot and cold air are built into circulating air ducts between the passes of that portion of the air heater which is exposed to the danger of corrosion. Said mixers are provided in the form of tubes perforated lengthwise and located frontally in the respective pass. Headers serving the mixers are connected to cold air feeding ducts.
Perforations the tubes of each mixer are provided with serve to direct jets of cold air at right angles to the flow of hot air.
The tubes of the mixer are blanked off at the opposite ends of the adjacent tubes while the open ends of these tubes are connected to different cold air headers. Used as the tubes of a mixer can be a bunch of frontal tubes in the respective passes of the air heater.
The air heater disclosed offers protection against corrosion by heating a mixture of cold and hot air to a minimum temperature, and said protection is achieved in a compact light-weight apparatus requiring minimum labor for its fabrication.
REFERENCES:
patent: 2363870 (1944-11-01), Karlsson et al.
patent: 2665840 (1954-01-01), Powell
patent: 3194214 (1965-07-01), Frendberg
Alexandrov Boris I.
Fedosov Alexei Z.
Galuskin Vadim B.
Gromov Gennady V.
Krasnov Boleslav M.
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