Thermocouple lead sealing equipment

Abstract

The invention relates to thermocouple lead sealing equipment, which is characterized in that one end of a hollow joint is connected in container wall, and the other port thereof is internally provided with a hemispherical sealing face mechanism composed of a thermocouple probe, a nut, a hemispherical face head and a sealing adhesive layer hole, wherein, one end of the hemispherical face head is internally provided with the sealing adhesive layer hole; the other end thereof is the hemispherical face head; the port of the hollow joint is internally provided with a sealing face sealed with the hemispherical face head of which the root part is provided with a step; after the hemispherical face head step is installed in the step-slot of the nut, the screw thread at the other end of the nut is connected on the hollow joint, so that the probe of the thermocouple probe penetrates the sealing adhesive layer of the hemispherical face head and exposes outside the end face of the hollow joint via a hollow hole in the hollow joint; and the adhesive layer for fixing the thermocouple probe is filled in the sealing adhesive layer. The thermocouple lead sealing equipment of the invention has the advantages of reasonable design, compact structure, simplicity and practicability, good seal performance, big loading capacity, reusability, convenient assembly and disassembly and very convenient use and the like.

Description

technical field [0001] The invention belongs to accessories for temperature measuring instruments, in particular to a thermocouple lead wire sealing device for measuring the temperature in a high-pressure container. Background technique [0002] As we all know, when measuring the temperature of the inner wall of a high-pressure vessel, the thermocouple lead wire must be drawn out from the inner wall of the vessel, and a lead-out hole must be provided on the vessel wall. In order to ensure the high-pressure seal at the lead-out hole of the vessel, a special Thermocouple lead sealing device; its structure includes joints, nuts, gaskets and thermocouple probes, usually one end of the joint with the built-in thermocouple probe is welded to the container, and the other end of the joint is fixed to the joint with a nut. At the same time, a copper gasket or a rubber gasket is installed between the contact surface of the nut and the joint; to ensure that the lead wire sealing device...

AI Technical Summary

Problems solved by technology

Its shortcomings and deficiencies are: the shape structure is relatively large, a copper gasket or a rubber gasket is installed between the contact surface of the joint and the nut, and the sealing pressure bearing capacity of the sealing surface is small, and it is generally used in occasions with low pressure. When the pressure is high, it is often prone to leakage; in addition, the joint and the nut are threaded. When installing, the nut needs to be rotated to fix the thermocouple probe with the connecting wire on the joint. The thermocouple and the connection are easily damaged when rotating. Wire

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