Corrosion detection sensor based on electrochemistry theory

Abstract

The invention discloses a detector based on electrochemistry, which comprises a sleeve, a panel, a spring, a partition plate, a fixing bracket, an auxiliary electrode and a reference electrode, wherein the sleeve is hollow and openings are arranged at two ends so that the liquid in the sleeve can enter into a T-shaped bracket for in-situ electrochemical detection; the reference electrode and the auxiliary electrode contact the inner wall of a metal pipe through the liquid in the sleeve and form a conductive loop together with the solution in the sleeve and the inner wall of the detected metal pipe; and when the detection sensor is used for detecting the corrosion situations of a bared pipe of the metal pipe and the coating of the inner wall, the detector is arranged inside the metal pipe. The metal pipe is fixed with a probe and tightly contacts the probe through the spring, and an arc front end tightly contacts the inner wall of the metal pipe. The inner wall of a metal tank / pipe is tested by an electrochemistry method in a monitoring process.

Description

technical field [0001] The invention relates to a detection sensor, in particular to a metal pipe bare pipe and inner wall coating corrosion detection sensor based on the principle of electrochemical measurement. Background technique [0002] Metal products play an important role in the national economy. Tubular metal products are very common, ranging from small beverage cans to steel pipes. The most important failure mode encountered by metal products is corrosion, so it is necessary to test the corrosion performance of such products. [0003] Food cans made of tinplate mainly include three-piece beverage cans, food cans and biscuits, tea dry product cans, etc. The anti-corrosion ability of food cans directly affects the quality and shelf life of the contents, but there are many kinds of contents and different storage requirements, which poses new problems for food can manufacturers. Understanding and mastering the basic situation of anti-corrosion of food cans has pract...

AI Technical Summary

Problems solved by technology

This method will inevitably eliminate the stress and destroy the characteristics of the metal pipe itself because it will destroy the metal pipe.

[0006] The method of corrosion detection using electrochemical sensors mainly monitors the local corrosion characteristics of large structures, but due to the problem of current distribution, it is difficult to obtain accurate results

Traditional sensors cannot be placed in metal pipes, and the metal pipe still needs to be destroyed for detection

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