Heat exchange – Movable heating or cooling surface – Rotary drum
Patent
1997-09-17
1999-05-04
Bennett, Henry A.
Heat exchange
Movable heating or cooling surface
Rotary drum
34119, 34115, 492 46, F28D 1102
Patent
active
058992642
ABSTRACT:
A steam heated web processing roll includes a fully enclosed steam and condensate flow-through system which maintains the roll end walls at approximately the same operating temperature as the functional cylindrical outer roll shell at normal rotational speeds. The closed loop system also assists in purging non-condensible gases from the steam path. At low roll speeds or when the roll is stopped, a valving system closes all of the condensate return paths except one or more of the lowermost paths from which condensate pooling in a sump at the bottom of the roll is withdrawn. This prevents undesirable cooling of the lower portion of the roll as compared to the remaining portion, thereby reducing the possibility of bowing of the roll by thermal distortion.
REFERENCES:
patent: 2170405 (1939-08-01), Greenwood
patent: 2341335 (1944-02-01), Simmons
patent: 3228462 (1966-01-01), Smith, Jr.
patent: 3914875 (1975-10-01), Schiel
patent: 4086691 (1978-05-01), Smith, Jr.
patent: 4542593 (1985-09-01), Viitanen et al.
patent: 4644668 (1987-02-01), Hull
patent: 4773468 (1988-09-01), Lauener
patent: 4781795 (1988-11-01), Miller
patent: 4965920 (1990-10-01), Smith
patent: 5072497 (1991-12-01), Zaoralek
patent: 5111876 (1992-05-01), Nash
patent: 5230169 (1993-07-01), Jaatinen et al.
patent: 5271456 (1993-12-01), Baumann
patent: 5456309 (1995-10-01), Vannuci, Jr.
patent: 5533569 (1996-07-01), Reibel etal.
patent: 5655596 (1997-08-01), Zaoralek
Bennett Henry A.
Marquip Inc.
Wilson Pamela A.
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