Device for heating air by flue gases in steam boilers and furnac

Details Device for heating air by flue gases in steam boilers and furnac Device for heating air by flue gases in steam boilers and furnac

1982-09-30

1984-06-05

Favors, Edward G.

Liquid heaters and vaporizers

Plants

Feed water heaters

110216, 110302, 122DIG13, 122 20B, 165DIG2, F22B 3300

Patent

active

044521812

ABSTRACT:
A device for heating air by flue gases in steam boilers and furnaces, comprises a supply flue, sections mating therewith, and a device for protection of heat-exchange tubes against abrasive wear arranged in the flue. Each section comprises heat-exchange tubes attached to tube plates. The device for protection of the heat-exchange tubes against abrasive wear incorporates at least one screen formed by corrugated sheets facing each other and mating along the lines of contact of sheet convex portions, whereby cells are made up.

REFERENCES:
patent: 1802930 (1931-04-01), Seelert
patent: 3630276 (1971-12-01), Paine et al.
patent: 4120267 (1978-10-01), Wood
patent: 4213403 (1980-07-01), Gomori

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