Long-service-life reference electrode applicable to high-temperature and high-voltage corrosive environment

Abstract

The invention provides a long-service-life reference electrode applicable to the high-temperature and high-voltage corrosive environment. A core of the electrode is formed by hot pressed sintering, a shell of the electrode is composed of an upper end body, a middle end body and a lower end body, the middle end body is connected with the lower end body into a whole, an upper end cover is connected with the upper end body through threads, an isolation external member composed of a first fluororubber pad and first microporous ceramic is arranged between the upper end body and the middle end body, an anti-explosion pad is arranged between the upper end body and the upper end cover, one end of a high-temperature-resisting lead of the electrode penetrates through the upper end cover of the electrode and the anti-explosion pad to be connected with the core of the electrode, the core of the electrode is fixed in the upper end body by utilizing a positioning pad, the positioning pad and the anti-explosion pad are sealed by solid powder epoxy resin, a second fluororubber pad and a second microporous ceramic core are arranged between a lower end cover and the lower end body. The reference electrode can be used under the high-temperature and high-voltage environment, and the use effects of high-temperature resistance, high-voltage resistance, no need of maintenance and long service life are achieved.

Description

technical field [0001] The invention relates to a reference electrode, in particular to a long-life reference electrode which can be used stably in a high-temperature, high-pressure corrosion environment. Background technique [0002] The reference electrode is used to accurately measure the electrode potential of metals and their structures in the environment, perform proper cathodic protection on metals and their structures, and provide potential control signals for automatic control equipment. It has a wide range of applications. At present, an important feature in the field of petrochemical and crude oil transportation is the use of transmission towers and pipeline sealing structures for production operations. In this environment, there are service conditions of high temperature and high pressure. In the fields of petrochemical and crude oil transportation, due to the harsh corrosive environment, corrosion failure events of structural parts seriously affect the safe oper...

AI Technical Summary

Problems solved by technology

However, this method is limited by the maximum working temperature of the PTFE thin-walled tube, and this reference electrode is no longer usable after exceeding the temperature tolerance limit of the PTFE thin-walled tube

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