Seal for boiler water wall

Details Seal for boiler water wall Seal for boiler water wall

1984-06-18

1985-04-16

Favors, Edward G.

Liquid heaters and vaporizers

Supports

122 4D, 122 6A, 165 81, 165 82, F22B 3724

Patent

active

045108927

ABSTRACT:
A boiler (10) made up of three separate sections consisting of (1) a bottom supported fluidized bed (12); (2) a top supported upper furnace portion (14); and (3) a vertical boiler section (24) in fluid communication with the furnace outlet. Seals (34, 36) are located between each of the three sections, so they can expand thermally relative to each other while preventing the surrounding atmosphere from exposure to the hot combustion gases. The seals consist of fluid cooled (48, 70) troughs (38, 60) containing sand (40, 62), with fluid cooled (48, 70) plates (42, 64) extending down into the sand.

REFERENCES:
patent: 2870750 (1959-01-01), Langvand
patent: 3814174 (1974-06-01), Beggs
patent: 4387651 (1983-06-01), Moore

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