Continuously flushed thermocouple assembly
Patent
·
OSTI ID:6909696
This patent describes a thermocouple assembly in combination with a melting furnace for containing a body of molten glass, comprising: a thermocouple element having a junction; a first sleeve; a second sleeve; means for sealing the second end of the second sleeve to the first sleeve to provide a second annular space having a closed end adjacent the second end of the second sleeve and an open portion at the first end of the second sleeve to provide the thermocouple assembly; means for securing the thermocouple assembly in the hole with the closed first end of the first sleeve extending into the molten glass and the second end of the second sleeve at or extending beyond outer surface of the wall having the hole; means for sealing the first end of the second sleeve and space between the first end of the second sleeve and adjacent wall portion of the hole to provide a sealed second annular space; and means for moving a corrosion-inhibiting gas into, through, and out of at least one of the annular spaces to flush the at least one of the annular spaces.
- Assignee:
- PPG Industries, Inc., Pittsburgh, PA
- Patent Number(s):
- US 4747883
- OSTI ID:
- 6909696
- Country of Publication:
- United States
- Language:
- English
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