Browse Prior Art Database

Degassing Tank with Vacuum Feedthrough Agitator

IP.com Disclosure Number: IPCOM000104356D
Original Publication Date: 1993-Apr-01
Included in the Prior Art Database: 2005-Mar-19
Document File: 2 page(s) / 45K

Publishing Venue

IBM

Related People

Kott, G: AUTHOR [+2]

Abstract

Disclosed is a method which improves an old inefficient means of degassing small amounts of insulating oil by using common high vacuum components.

This text was extracted from an ASCII text file.
This is the abbreviated version, containing approximately 87% of the total text.

Degassing Tank with Vacuum Feedthrough Agitator

      Disclosed is a method which improves an old inefficient means
of degassing small amounts of insulating oil by using common high
vacuum components.

      It is desired to remove the dissolved gasses from an oil when
it is being used as an electrical insulator.  If the gasses (mostly
air and water vapor) are left in the oil, arcs may form across the
voids and cause shorts in the system.

      Currently small amounts of oil (less than 1 Liter) are degassed
by placing a container of the oil in a vacuum.  This works fine but
does not degas the oil thoroughly.

      A critical parameter for degassing oil is to expose as much
surface area as possible to the vacuum.  This design does just that
by using a high vacuum linear feedthru to agitate the oil and expose
it to the surface (see figure).  The linear feedthrough has a paddle
attached to the end which dips in and out of the oil.  As the paddle
moves up and down it circulates the oil, continually exposing a new
surface to the vacuum.

      This method will degas a small amount of oil quicker and more
thoroughly than the old method.

      Another advantage of this apparatus is it's completely built
from commercially available high vacuum components, which makes it
economic, quick and simple to build.

      Some desirable features of this apparatus:

1.  Agitate oil to constantly expose oil surface to vacuum.
2.  Degasses quicker and more...