Thermocouple leading device

Abstract

The invention relates to a thermocouple leading device which comprises a thermocouple connecting base, wherein the lower end of the thermocouple connecting base is provided with a thermocouple, an insulating base is arranged at the upper end of the thermocouple connecting base, and a wiring pole is arranged on the insulating base. The thermocouple leading device is characterized in that a flange cover and a protective cover fixed on the flange cover are covered on the insulating base, and the thermocouple is fixed at the lower end of the thermocouple connecting base through a compression screw and sealed by a seal pad and a gasket; a second O-shaped seal ring for sealing is arranged between the insulating base and the thermocouple connecting base, and a first O-shaped seal ring is arranged on the contact surface of the thermocouple connecting base with a furnace body. The thermocouple connecting base is respectively fixed with the furnace body and the flange cover by a hexagon bolt, a first hexagon nut and a first gasket. The thermocouple is a twin platinum-rhodium10-platinum thermocouple. With the thermocouple leading device, better seal property can be obtained, and the seal problem can be better solved.

Description

technical field [0001] The invention relates to a thermocouple lead-out device, in particular to a thermocouple lead-out device for industrial furnaces. Background technique [0002] Various thermocouples are widely used in industrial production for temperature measurement and temperature control operations. For example, in the heat treatment industry, temperature, as a key factor in production, must be accurately and effectively controlled. The current thermocouples are basically installed by opening installation holes on the furnace wall and inserting the thermocouple directly into the furnace chamber. This installation method will involve the problem of sealing. At present, more single-layer sealing structures are used, but in some In containers with negative pressure or positive pressure, it is found that in some cases, this sealing method will cause a certain degree of air leakage, which will affect the normal operation and use of the equipment. Contents of the invent...

AI Technical Summary

Problems solved by technology

The current thermocouples are basically installed by opening installation holes on the furnace wall and inserting the thermocouple directly into the furnace chamber. This installation method will involve the problem of sealing. At present, more single-layer sealing structures are used, but in some In containers with negative pressure or positive pressure, it is found that in some cases, this sealing method will cause a certain degree of air leakage, which will affect the normal operation and use of the equipment.

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