Furnace front wall seals

Details Furnace front wall seals Furnace front wall seals

1987-12-07

1988-12-13

Ward, Robert S.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277 9, 277105, 277227, 277DIG6, 285 16, 285337, 285348, F16J 1510

Patent

active

047905425

ABSTRACT:
A gland seal for addition to a boiler and furnace structure which has pipes (20) passing through a waterwall (12) and seal box (30). The gland seal includes a packing (40) of ceramic rope of square cross-section wrapped on the pipes (20) adjacent the front plate (34) of the seal box (30) with a hose clamp (41) radially constricting the packing and a pressure plate (42) driven by nuts (46) on threaded studs (44) adjacent the pipes (20) axially constricting the packing to eliminate ash leakage through the waterwall joint.

REFERENCES:
patent: 801596 (1905-10-01), Kerr et al.
patent: 807739 (1905-12-01), Hanson
patent: 1078009 (1913-11-01), Taylor
patent: 2783065 (1957-02-01), Martin
patent: 3152816 (1964-10-01), Smith
patent: 3746370 (1973-07-01), Aulisa
patent: 4377291 (1983-03-01), Albertini
patent: 4433860 (1984-02-01), Lindquist
patent: 4581882 (1986-04-01), Pallo et al.
patent: 4601304 (1986-07-01), Schobl

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