Title:
流体循環システムを備える製紙用熱ロール及びそのための方法
Document Type and Number:
Japanese Patent JP2005520947
Kind Code:
A
Abstract:
A thermal roll for efficiently transferring heat to or from a web is provided. The thermal roll includes a rotatable outer shell having a cylindrical outer mantle and a stationary inner shell within the rotatable outer shell. An annular space is defined between an inner surface of the rotatable outer shell and an outer surface of the stationary inner shell. The annular space of a relatively low volume is filled with a heat exchange fluid, such as oil or water, that exchanges heat with a fibrous web through the mantle of the rotatable outer shell. The low volume of the annular space enables high heat transfer rates to the web and quick and efficient changes to the temperature of the heat exchange fluid. The thermal roll is adaptable for use as various types of rolls, such as calender rolls, press rolls, drying cylinders, and Yankee cylinders.
Inventors:
Niemann, Gustav, Per-Arne
Ehnerd, johnny
Ehnerd, johnny
Application Number:
JP2003578642A
Publication Date:
July 14, 2005
Filing Date:
November 25, 2002
Export Citation:
Assignee:
Metso Paper Inc.
International Classes:
D21F5/02; D21F5/06; D21G1/02; F26B23/06; F26B13/08; F26B25/00; (IPC1-7): D21F5/06; F26B13/08; F26B23/06; F26B25/00
Attorney, Agent or Firm:
Tadahiko Ito
Shinsuke Onuki
Tadashige Ito
Hiroshi Kida
Shinsuke Onuki
Tadashige Ito
Hiroshi Kida