Temperature compensated ventilating roll

Details Temperature compensated ventilating roll Temperature compensated ventilating roll

D - Textiles, Paper

21

F

D21F 5/04 (2006.01) F26B 13/08 (2006.01) F26B 13/16 (2006.01)

Patent

CA 2071997

A ventilating roll (12) for introducing a supply of relatively dry air into the pocket spaces (P1, P3, P5) between dryer rolls (10) and the co-running fabrics (F) and paper web (W) in a papermaking machine, and removing the relatively moist air which is lib- erated from the traveling paper web (W) as it comes into contact with the heated dryer rolls (10). The ventilating roll (12) has a plurality of separate compartments (18, 20), some of which conduct sub-atmospheric pressure air into the pocket spaces, and some of which conduct sub-atmospheric air out of the pocket spaces. The compartments (18) conducting air into the roll alternate with the compartments (20) for conducting air out of the roll. The temperature of the internal structure of the roll is thereby balanced cir- cumferentially about the center shaft (16) of the roll (12) and thermal bowing of the roll is kept to a minimum.

Affiliated with

Also associated with

Rating

Temperature compensated ventilating 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 Temperature compensated ventilating roll, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Temperature compensated ventilating roll will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1425032