Seal arrangement for high temperature furnace applications
Patent
·
OSTI ID:6354897
This patent describes a sealing arrangement in combination with an industrial heat treat furnace comprising: an imperforate, thin walled, metal cylindrical shell member for receiving workpieces to be heat treated therein, the shell member having a cylindrical body portion terminating at a flanged open end; door means for opening and closing the flanged open end; an elastomer seal between the door means and the flanged open end for sealing the door and the flanged end when the door is in a closed position; heating means within the furnace for heating the work and the body portion of the shell member to a high furnace temperature; liquid cooling means adjacent the seal for keeping the seal at a cool, non-destructive temperature; insulating means extending from the flange end along the body portion a spaced distance for substantially shielding the inner surface of the shell member and the outer surface of the shell member over the spaced distance from heat flux emanating from the heating means; and the liquid cooling means in combination with the insulating means gradually cooling the shell member from the furnace temperature to the cool non-destructive temperature at the flanged end over the spaced distance to establish a temperature gradient therebetween which prevents rupturing of the shell member.
- Assignee:
- Gas Research Institute, Chicago, IL
- Patent Number(s):
- US 4787844
- OSTI ID:
- 6354897
- Country of Publication:
- United States
- Language:
- English
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