Corrosion-proof temp-measuring sensor

Abstract

The present invention relates to a corrosion-resistant temperature measurement transducer, including metal protective tube fixed by utilizing connecting supporting seat and temperature-sensing element assembled in the metal protective tube. It is characterized by that a corrosion-resistant protective tube is combined on the external surface of said metal protective tube, the corrosion-resistant protective tube and metal protective tube are fixed in the connecting supporting seat together, and packaged and tightly locked by utilizing corrosion-resistant flexible sealing plug and corrosion-resistant sealing cover and by means of body-separated double-thread pipe. It can obviously raise its corrosion-resistant effect and service life, and can broaden its application range.

Description

technical field [0001] The invention relates to a device for measuring the temperature of a medium, in particular to a corrosion-resistant temperature measuring sensor for measuring the temperature of a medium in a high temperature, high pressure and strong corrosion environment. Background technique [0002] At present, temperature sensors for measuring the temperature of various media have been widely used in power stations, petrochemicals, metallurgy, papermaking, textiles, pharmaceuticals and other industries. Most of the existing temperature measuring sensors adopt contact and non-contact structures. The non-contact temperature sensor has a long service life and corrosion resistance, but its structure is complicated, the manufacturing cost is high, and the temperature measurement accuracy is poor. The temperature sensing element of the contact structure is assembled in the metal protection tube fixed by the connecting support, and directly placed at the temperature mea...

AI Technical Summary

Problems solved by technology

However, since the fluoroplastic tube is rolled, stretched and sealed on the outer periphery of the metal protection tube, it cannot be rolled and stretched, resulting in uneven thickness of the tube arm, internal stress, and leakage; the flanging after flanging There is stress concentration at the place, which cannot withstand relatively large stress, and it is easy to cause leakage and other disadvantages when under pressure, so testing it will affect its popularization and application

According to public literature reports at home and abroad, so far, there is no ideal sensor for measuring the temperature of the medium in high temperature, high pressure, and strong corrosive environments.

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