Four-electrode soil corrosion detection probe

Abstract

The invention relates to a four-electrode soil corrosion detection probe which comprises four electrodes and a main rod tube, wherein the four electrodes are jointly embedded into an electrode holder to be fixed; conducting lines of the four electrodes are connected to a multifunctional soil corrosion measuring instrument through the main rod tube; the main rod tube is connected to the electrode holder through an aviation plug in an inserting manner; the electrode holder is divided into two categories, to be specific, one type of electrode holder into which four electrodes namely the reference copper sulfate electrode, the working electrode, the platinum electrode and the temperature electrode, are inserted, and the working electrode and the metal to be detected are made of the same material; the other type of electrode holder into which the four electrodes namely the four copper electrodes are inserted. According to the four-electrode soil corrosion detection probe, multiple detection functions are realized, that field measurement can be performed on soil temperature, electrical resistivity, oxidation reduction potential (ORP) and soil corrosion rate is realized, the conversion is convenient, the influence of IR drop of the soil on electrochemical measurement is effectively reduced, the reliability of measured data, namely the corrosion rate of metal is improved, and the advantage of good convenience for carrying is achieved.

Description

technical field [0001] The invention relates to a soil corrosion detection device, in particular to a four-electrode soil corrosion detection probe. Background technique [0002] The substation grounding grid is crucial to the safe operation of the power system. Due to the high price of copper, steel ground grids are widely used in China and many other countries. The grounding grid is underground for a long time, and corrosion is inevitable. This kind of corrosion is a typical electrochemical corrosion. Although galvanized flat steel is used to slow down the corrosion of the grounding grid, the grounding grid accidents caused by the corrosion of the grounding body frequently occur at present, which not only causes huge economic losses, but also becomes a hidden danger to the safe operation of the power system. With the increase of power capacity and voltage level in our country, this problem has become more prominent. Therefore, studying the corrosion status of the ground...

AI Technical Summary

Problems solved by technology

[0004] In view of the shortcomings of the soil corrosion detection device in the prior art, such as relatively single function, large error in measurement results, prone to overload faults, complicated experimental methods, and difficulty in meeting the needs of practical applications, the technical problem to be solved by the present invention is to provide a reasonable structural design, Electrode soil corrosion measurement probe with simple, fast, accurate and portable measurement methods, which can reduce the influence of IR drop on measurement

Images