Heat exchange – Movable heating or cooling surface – Rotary drum
Patent
1989-04-10
1990-04-03
Davis, Jr., Albert W.
Heat exchange
Movable heating or cooling surface
Rotary drum
165 90, F28F 502
Patent
active
049132245
ABSTRACT:
A chill roll for cooling a web, such as in the printing industry, where a uniform temperature across the chill roll is maintained. Journals support an outer roll assembly and an inner roll assembly. The inner roll assembly is bearing mounted on the inner ends of opposing journals and the outer roll is rotated about the inner roll, which is weighted to free-wheel about the bearings to minimize rotary motion. Coolant is introduced through the journal on one end and into a center tube, where the coolant uniformly flows in an annular space between the rolls and along the length of the inner and outer roll assemblies to circumferentially traverse between the rotating and stationary outer and inner rolls. This coolant flow provides enhanced heat transfer from the outer rotating chill roll to the circulating coolant. Heated coolant collects and returns through a center tube, and exhausts through the center tube and out through the journal. Turbulence inducer bars between the inner and outer roll assemblies creates a turbulence in the coolant flow between the outer and inner rolls to further enhance heat transfer.
REFERENCES:
patent: 2300528 (1942-11-01), Sherts
patent: 2365678 (1944-12-01), Butler
patent: 2915293 (1959-12-01), Justus
patent: 3006610 (1961-10-01), Siegel
patent: 3208513 (1965-09-01), Pendleton
patent: 3291264 (1966-12-01), Norton
patent: 4230928 (1980-10-01), Janssen
patent: 4351386 (1982-09-01), Kobler
patent: 4440214 (1984-04-01), Wedel
patent: 4506727 (1985-03-01), Swasey
patent: 4582128 (1986-04-01), Jarreby
patent: 4796525 (1989-01-01), Schiel et al.
Davis Jr. Albert W.
Jeager Hugh D.
W. R. Grace & Co.,-Conn.
LandOfFree
Chill roll does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Chill roll, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Chill roll will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1351301