Browse Prior Art Database

Teflon-Sheathed Cooling Rod

IP.com Disclosure Number: IPCOM000046011D
Original Publication Date: 1983-May-01
Included in the Prior Art Database: 2005-Feb-07
Document File: 2 page(s) / 37K

Publishing Venue

IBM

Related People

Watts, J: AUTHOR

Abstract

This article discloses a novel plastic-coated cooling rod useful for cooling acids in all plastic tanks. The tube comprises an inner metallic tube 10 coaxial with an outer metallic tube 11 which is coated with a suitable inner plastic coating 12, such as TEFLON*, resistant to the acid in which it is to be submerged. This tube passes through the wall of the tank 13 and is held therein by a suitable bushing 14 which is welded to the plastic coating. The inner and outer tubes are held together by a suitable T-junction bushing 15 and are arranged such that the cooling fluid enters the inner metal tube 10 and exits via the outer tube 11.

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Teflon-Sheathed Cooling Rod

This article discloses a novel plastic-coated cooling rod useful for cooling acids in all plastic tanks. The tube comprises an inner metallic tube 10 coaxial with an outer metallic tube 11 which is coated with a suitable inner plastic coating 12, such as TEFLON*, resistant to the acid in which it is to be submerged. This tube passes through the wall of the tank 13 and is held therein by a suitable bushing 14 which is welded to the plastic coating. The inner and outer tubes are held together by a suitable T-junction bushing 15 and are arranged such that the cooling fluid enters the inner metal tube 10 and exits via the outer tube 11. This tube has distinct advantages over the prior art in that better heat transfers are achieved because the plastic layer required for chemical resistance on the outer tube can be extremely thin. Moreover by utilization of metal tubing, higher pressure ratings can be achieved and one mechanical seal between the tank wall and the tubing is eliminated.

* Trademark of E. I. du Pont de Nemours & Co.

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