| 摘要 |
A thermocouple holder assembly for a furnace tube including a heat sink block for welding to the furnace tube, the heat sink block having a first bore therein for slidably receiving the distal end of an elongated sheathed thermocouple, the heat sink block having a hollow heat sink tube extending from the first bore for receiving a portion of the thermocouple, and a heat shield for welding to the furnace tube having walls for shielding and completely enclosing the heat sink block to shield the heat sink block from ambient heat on the exterior of the heat shield, the heat shield having a cavity therein for receipt of the heat sink block and the heat sink tube and flexible insulation material placed over the heat sink block and the heat sink tube, one of the walls having a second bore extending therethrough to the cavity for slidably receiving the thermocouple, the second bore being positioned in-the heat shield wall for alignment with the heat sink tube for conveying the thermocouple through the second bore to the heat sink tube, the heat shield having a third bore extending through one of the walls and intersecting the second bore for receipt of a fastener for placement in the third bore for selectively fastening the thermocouple to the heat shield and for selectively releasing the thermocouple from the heat shield.
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