System for monitoring dynamic direct-current interference of pipeline based on Beidou and risk assessment method

Abstract

The invention relates to a system for monitoring dynamic direct-current interference of a pipeline based on Beidou and a risk assessment method. The monitoring system comprises multiple monitoring units dispersedly arranged and corresponding to test piles in a gas pipe network and server units in communicating connection with the monitoring units, wherein each monitoring unit comprises a potential recorder, a checking piece and a reference electrode, wherein the checking piece and the reference electrode are buried in one side of the gas pipeline and are respectively connected with the potential recorder through cables, and the potential recorder is connected with the gas pipeline through a cathode testing line in the corresponding test pile. The monitoring system has the advantages of being simple in structure, easy to implement, high in accuracy and good in real-timeliness, intelligentization and visual management of the gas pipe network can be achieved, the corrosion risk of the gas pipeline is reduced, and the reliability of safe operation is improved. The risk assessment method has the advantages of being simple in process, convenient to achieve, scientific and reasonable.

Description

technical field [0001] The invention relates to a stray current monitoring technology for buried metal structures, in particular to a Beidou-based pipeline dynamic DC interference monitoring system and a risk assessment method for pipelines being corroded by dynamic DC interference. Background technique [0002] With the continuous advancement of the urbanization process, more and more buried pipelines are laid in parallel or intersect with rail transit lines, and the risk of dynamic DC interference faced by buried pipelines continues to increase, which seriously threatens the safety of buried pipelines and urban infrastructure. Safety. For this field, the real-time monitoring and risk assessment of the dynamic DC interference of buried pipelines can timely grasp the operating status of buried pipelines and provide a reliable basis for management and operation. At present, the commonly used method for monitoring and detecting the dynamic DC interference of buried pipelines ...

AI Technical Summary

Problems solved by technology

At present, the commonly used method for monitoring and detecting the dynamic DC interference of buried pipelines is to select individual points on a certain pipeline for dynamic DC detection. This method mainly has the following problems in practical applications: the detection accuracy is low, often It is inconsistent with the actual situation of the pipeline; the degree of standardization is low, the size of the inspection piece, the buried position, the buried depth, and the polarization time, the delay time of the power-off potential acquisition, the relative position of the reference electrode and the polarized test piece, etc. are not uniform Standard; the detection work is mainly done manually, and a large amount of data needs to be processed, and the work efficiency is low and the timeliness is poor

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