Thermoelectric couple sealing arrangement arranged in autoclave

The utility model discloses an autoclave, in particular to a thermoelectric couple sealing device positioned in the autoclave and used for measuring temperature by a large-medium autoclave, which belongs to the pressure vessel field. The thermoelectric couple sealing device comprises a sealing base connected on a casing body; a thermoelectric couple line is connected in the center of the sealing base, a sealing element is positioned in the inner cavity of the sealing base, a pressing ring is connected at the upper end of the sealing element, and the pressing ring is fixed and connected through a nut. The thermoelectric couple sealing device has the advantages of simple structure, convenient use and low cost, each temperature measuring thermoelectric couple sealing structure device can be provided with 1 to 6 thermoelectric couple line (s), the sealing is reliable, the hole quantity of the casing body is greatly reduced, and the thermoelectric couple sealing device can be applied in the technical fields such a