Resistance corrosion online monitoring system

Resistance corrosion resistance on-line monitoring system for monitoring is an effective method of an indirect monitoring device corrosion. Measuring element is equivalent to a resistance wire, installed in the pipeline, because of the corrosion medium of the measuring element to make it the cross-sectional area is reduced, resulting in increased resistance, by measuring the variation of the resistance value to calculate the corrosion rate and quantity of the corrosion thinning of the specimens. When measuring element of material, the medium erosion state of objective conditions and the status of the measuring equipment such as basic phase at the same time, corrosion rate approximately is available measuring element represents the corrosion rate of equipment. Its technical characteristics are as follows:

A. indirect measurement of corrosion, indirect reaction medium by measuring the components of the corrosion rate of pipeline corrosion situation, corrosion is through a period of accumulation of thinning to calculate the corrosion rate;

B. system has nothing to do with the media, can determine the corrosion liquid or gas phase, can be applied to the electrolyte corrosion system and corrosion behavior of electrolyte system;

C. is a more traditional method of on-line corrosion monitoring principle of simple and clear, so the anti-interference ability is stronger, but the filamentous measuring element in the medium velocity is bigger or viscous medium to flow more protective measures, such as medium or resistance wire could easily be swept bent or twisted, resulting in failure of measurement;

D. temperature compensation protel to probe in the body, has certain influence to response to the change in temperature;

E. requirements corrosion must be uniform, if there are pitting corrosion, stress corrosion cracking, or other localized corrosion situation, measurement results are prone to bias;