Method and system for synchronous monitoring of multi-point data of buried pipeline corrosion

By collecting soil and electrochemical parameters to calculate the corrosion risk index and adjust the cathodic protection parameters, the problem of the existing technology being unable to respond to corrosion in complex environments in a timely manner is solved, and the safety factor and anti-corrosion effect of buried pipelines are improved.

CN120556041BActive Publication Date: 2025-10-03GUANGDONG SPECIAL EQUIP TESTING INST FOSHAN TESTING INST +1
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Patent Information

Application Number
CN202511061454.4
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-07-31
Publication Date
2025-10-03
Estimated Expiration
2045-07-31

AI Technical Summary

Technical Problem

Existing cathodic protection technology cannot be adjusted in time according to different environmental conditions, resulting in the inability to guarantee the safety factor of buried pipelines, especially in complex environments where corrosion risks are difficult to control.

Method used

By collecting soil and electrochemical parameters of each numbered section of the buried pipeline, calculating the stray current density and corrosion risk index, performing weighted calculation of the corrosion risk level, adjusting the cathodic protection parameters, and training the corrosion rate prediction model based on historical data, early warning information is generated.

Benefits of technology

It achieves comprehensive reflection and precise adjustment of the corrosion status of buried pipelines, improves the overall safety factor in complex environments, improves the corrosion resistance level, and reduces the corrosion risk.

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Abstract

The present application discloses a method and system for synchronously monitoring the corrosion of buried pipelines at multiple points, which relates to the technical field of pipeline corrosion monitoring and is used to improve the overall safety factor of buried pipelines in complex environments. The method of the present application includes: collecting soil parameters and electrochemical parameters of each numbered pipe section in the buried pipeline to be tested; performing a corrosive analysis on the soil parameters to obtain a first corrosion risk index for each numbered pipe section; calculating the stray current density of each numbered pipe section based on the electrochemical parameters; comparing the stray current density of each numbered pipe section with a preset threshold gradient, and determining a second corrosion risk index for each numbered pipe section based on the comparison result; performing a weighted calculation on the first corrosion risk index and the second corrosion risk index to generate a corrosion risk level distribution for each numbered pipe section; determining the numbered pipe section whose corresponding corrosion risk level meets the preset level as a risky pipe section, and adjusting the cathodic protection parameters of the risky pipe section according to the parameter adjustment mechanism.
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