Thermocouple protection sleeve convenient for temperature measurement

Abstract

The invention discloses a thermocouple protection sleeve convenient for temperature measurement, which comprises a protection sleeve main body and a wiring part heat insulation plug, wherein the overall structure of the protection sleeve main body is a hemispherical circular tube structure with a closed end part, the protection sleeve main body comprises a metal base material layer, a protective layer arranged on the inner edge surface of the metal base material layer and a cladding layer processed by laser cladding on the outer edge surface of the metal base material layer, the cladding layer is coated on the outer edge surface of the side, which faces the closed end, of the protection sleeve main body, the side, which is away from the hemispherical closed end, of the protection sleeve body is in butt joint with the wiring part heat insulation plug, a plurality of sets of heat insulation guide rings for supporting a thermocouple magnetic insulation tube are installed in the protective layer, and a set of hemispherical heat conduction end is installed on the side, which faces the hemispherical closed end, of the protective layer. The thermocouple protection sleeve convenient for temperature measurement is reasonable in structure, the magnetic insulation tube can be easily mounted and dismounted in the protection sleeve, line position heat insulation and protection of the magnetic insulation tube are facilitated, and the thermocouple protection sleeve is recommended to be widely used.

Description

technical field [0001] The invention belongs to the technical field of thermocouples, and in particular relates to a thermocouple protection casing convenient for temperature measurement. Background technique [0002] Thermocouple (thermocouple) is a commonly used temperature measuring element in temperature measuring instruments. It directly measures the temperature, and converts the temperature signal into a thermal electromotive force signal, and converts it into the temperature of the measured medium through an electrical instrument (secondary instrument). The shapes of various thermocouples are often very different due to needs, but their basic structures are roughly the same, usually composed of main parts such as thermal electrodes, insulating sleeve protection tubes, and junction boxes, and are usually associated with display instruments, recording instruments, and electronic regulators. used together with the device. Thermocouples have become the most widely used t...

AI Technical Summary

Problems solved by technology

[0003] When the protective sleeve of the existing thermocouple performs temperature measurement work, the protective sleeve is affected by the heat radiation in the working area, and the heat is conducted to the inside, and the temperature is detected by the temperature measuring electrode at the end of the magnetic insulation tube, while the magnetic When the insulating tube collides with the inner wall of the long-term heating protective sleeve, it will affect the service life to a certain extent, and the magnetic insulating tube also has the problem of inconvenient installation and separation. Some protective sleeves will also introduce heat into the connection The cable installation position of the component warehouse affects the service life of the cable and increases maintenance costs

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