Underground pipeline intelligent cathode protection system and control method thereof

Abstract

The invention discloses an underground pipeline intelligent cathode protection system and a control method thereof, and the system comprises test piles which are respectively connected with a polarization probe and a corruption probe; a constant potential rectifier; the remote communication modules are respectively arranged on each test pile and the constant potential rectifier; and the control center receives the measurement information of the potentiostat and each test pile through the remote communication module, simulates and calculates an interference model of the current pipeline according to the received measurement information, determines an interfered pipe section, and then gives an optimization result for solving an interference source of the interfered pipe section. And the polarization current output parameter of the potentiostat is adjusted through the remote communication module until the corrosion of the interfered pipe section is relieved. According to the invention, through data feedback of the test pile and the potentiostat, the control center cooperates with the field environment and the obtained field data to carry out numerical simulation calculation, and a treatment scheme matched with the field interference condition is formulated.

Description

technical field [0001] The present application relates to the field of underground pipeline protection, in particular to an intelligent cathodic protection system and a control method thereof that can remotely monitor and adjust parameters of protection equipment at underground protected pipelines. Background technique [0002] Cathodic protection is to energize the protected pipeline to become the cathode, thereby slowing down and avoiding the corrosion of the protected material. At present, there are two main implementation methods of cathodic protection: one is the impressed current cathodic protection method, and the other is the sacrificial anode (cathode) protection method. [0003] The existing cathodic protection power supply equipment in the cathodic protection of underground pipelines does not have the remote control function, and needs to perform mode switching on site, resulting in poor ability to suppress and reduce interference current, and no self-feedback and...

AI Technical Summary

Problems solved by technology

[0003] The existing cathodic protection power supply equipment in the cathodic protection of underground pipelines does not have the remote control function, and needs to switch modes on site, resulting in poor suppression and reduction of interference currents, and no self-feedback and adjustment functions. For areas with potential fluctuations , unable to meet the 24-hour protection requirement

In addition, manual detection can only obtain instantaneous data, which cannot accurately reflect the situation of underground pipelines within a certain period of time, and cannot analyze the obtained field data in time. This will ignore some abnormal situations that occur in real time, which can easily lead to the damage of protected objects. consequences of corrosion

[0004] In addition, with the development of intelligence, the current cathodic protection system and control method have different judgment standards for the test method of AC and DC stray current interference, resulting in serious corrosion of the protected object even if the standard is implemented

And there are no clear detection standards for the detection, monitoring and treatment of stray current interference, DC interference, and severe AC and DC mixed interference

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