Rotary steam joint and valve assembly

Details Rotary steam joint and valve assembly Rotary steam joint and valve assembly

1998-06-02

2000-03-07

Atkinson, Christopher

Heat exchange

Movable heating or cooling surface

Rotary drum

165 89, 492 46, 34124, F28D 1102

Patent

active

060327251

ABSTRACT:
A rotary steam joint and valve assembly for a steam heated roll includes a non-rotatable, axially slidable sleeve journaled on one of the roll shaft ends and operable to selectively withdraw condensate which pools in the lower part of the roll when the roll is stopped or operating at low speed. At higher roll speeds, when condensate is more uniformly distributed circumferentially around the roll interior, the valve is operable to open all radial condensate return paths to the concentrate discharge port in the shaft end. Steam is supplied radially to the shaft end and the valve is constructed to permit steam flow in either position of the valve.

REFERENCES:
patent: 1823813 (1931-09-01), Wurster
patent: 3625280 (1971-12-01), Fritz
patent: 4965920 (1990-10-01), Smith
patent: 4991276 (1991-02-01), Briemont
patent: 5230169 (1993-07-01), Jaatinen et al.
patent: 5533569 (1996-07-01), Reibel et al.
patent: 5655596 (1997-08-01), Zaoralek
patent: 5899264 (1999-05-01), Marschke

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