Heat exchange – Regenerator – Checker brick structure
Patent
1982-09-29
1985-02-26
Davis, Jr., Albert W.
Heat exchange
Regenerator
Checker brick structure
34 86, 55267, 165 4, 165 7, 165 10, F28D 1700
Patent
active
045013187
ABSTRACT:
Heat recovery and replacement air preheating apparatus for use in industrial heat treating processes is disclosed as including at least a pair of thermal recovery and storage units, B, C wherein each storage unit contains a plurality of heat exchange elements 32, 33 which operate as heat sponges to pick up heat from exhausts as it leaves the dryer and subsequently to put that heat into entering replacement air whereby the cost in elevating the replacement air is greatly reduced. A control valve D, 62 connected between the two thermal storage units cycles the reverse exhaust and replacement air flows alternately through the thermal storage units in a manner that a substantial amount of exhaust heat is stored and transferred to the replacement air flow. The heat exchange elements 33 are carried at the cold end 30b of the thermal storage units and are of a different construction and material than elements 32 carried near the hot end 30a to permit condensation and removal of exhaust volatile contaminates without blocking flow through and to facilitate cleaning and disposal.
REFERENCES:
patent: 1994515 (1935-03-01), Hausen et al.
patent: 2492788 (1949-12-01), Dennis
patent: 2790505 (1957-04-01), Dow
patent: 3756310 (1973-09-01), Becker
Davis Jr. Albert W.
Flint Cort
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