ROLL

PROBLEM TO BE SOLVED: To cool a roll having an elastic film on its outer face in a simple way. SOLUTION: This roll 1 having an elastic film 22 on its outer face is provided with a roll tube 2 surrounding a closed inner space 11, and a volatile liquid 12 and a heat exchanger 14 are contained in this...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
1. Verfasser: HAAG ROLF VAN DR
Format: Patent
Sprache:eng
Schlagworte:
Online-Zugang:Volltext bestellen
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:PROBLEM TO BE SOLVED: To cool a roll having an elastic film on its outer face in a simple way. SOLUTION: This roll 1 having an elastic film 22 on its outer face is provided with a roll tube 2 surrounding a closed inner space 11, and a volatile liquid 12 and a heat exchanger 14 are contained in this inner space 11. When the roll 1 is driven for rotation, the liquid 12 sealed in the inner space 11 is pressed against an inner face 13 of the roll tube 2 by a centrifugal force to form a uniform liquid film. Heat of the elastic film 22, which is generated by deformation action during operation, is transferred to the liquid film, and the liquid is evaporated, whereby vapor filled in the inner space 11 transfers heat to a refrigerant with the aid of the heat exchanger 14, and the refrigerant carries away the heat to the external side. The vapor is condensed to the liquid 12 by the heat exchanger 14, and the liquid 12 is splashed by the centrifugal force to be returned to the inner face of the roll tube.