Browse Prior Art Database

Gas Line Heating Element

IP.com Disclosure Number: IPCOM000060090D
Original Publication Date: 1986-Feb-01
Included in the Prior Art Database: 2005-Mar-08
Document File: 1 page(s) / 11K

Publishing Venue

IBM

Related People

Gagnon, JB: AUTHOR

Abstract

Condensation in piping or tubing conveying low vapor pressure gases e.g. Tungsten Hexafluoride (WF6) or Boron Trichloride (BCl3) is prevented by applying heat to a few regions and insulating the remaining piping. Modular, half-cylinder, voltage (12-24 volts) resistive elements, electrically isolated from the piping, are applied to installed piping to provide safe regional heating.

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Gas Line Heating Element

Condensation in piping or tubing conveying low vapor pressure gases e.g. Tungsten Hexafluoride (WF6) or Boron Trichloride (BCl3) is prevented by applying heat to a few regions and insulating the remaining piping. Modular, half- cylinder, voltage (12-24 volts) resistive elements, electrically isolated from the piping, are applied to installed piping to provide safe regional heating.

Fig. 1 is an exploded view of the heating element assembly showing the two resistive half-cylinders 2 and the two split ceramic insulating washers 4 employed. These parts are assembled on an installed piping line 8 by means of conductive clamps 6 (serving also as electrical power supply connectors), as shown in Fig. 2. Additional heaters, e.g. 10, are installed as required to prevent condensation of the gas being conveyed. The remaining piping, from source of gas supply 14 to point of use 16, is covered with insulation 12.

Disclosed anonymously.

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