Intelligent remote monitoring and control system for cathodic protection of underground pipelines

Abstract

An intelligent remote monitoring and regulating system for cathode protection of underground pipelines comprises an intelligent test pole (1) equipped with a polarized probe, a constant potential rectifier (3) equipped with a constant potential rectifier intelligent measurement and control device, a transmission channel formed by electrically connecting the constant potential rectifier (3) and an underground steel pipeline (2) and used for inputting electrical parameters, as well as a monitoring host system comprising a server (7) of a remote monitoring and management system and intelligent terminals such as a computer, a tablet personal computer, a mobile phone and the like which are arranged in a monitoring center, an intelligent collecting processing and transmission system for measured data and control data is formed by a GPRS (general packet radio service) wireless network (5), the server (7) and the monitoring host system (8), and meanwhile, the remote real-time monitoring and detection system with functions of accurate positioning and time service is formed by an intelligent measurement and control device arranged in the intelligent test pole (1) and the constant potential rectifier intelligent measurement and control device matched with the constant potential rectifier (3) through a satellite positioning system (6).

Description

technical field [0001] The invention relates to a pipeline anticorrosion technology, in particular to an intelligent remote monitoring and control system for cathodic protection of underground pipelines by means of a GPRS network and a GPS timing and positioning system. Background technique [0002] Steel oil pipelines are essential container facilities for oil transportation in the petrochemical industry. However, during operation, they are often corroded by internal and external environmental media, thus burying potential safety hazards. Cathodic protection technology is a technology to prevent or inhibit electrochemical corrosion of protected metal structures. By applying a certain cathodic current to the protected metal, the potential of the protected metal is negative to a certain potential value, and the anode reaction on it is suppressed, so that the corrosion of the metal is controlled. [0003] In pipeline corrosion accidents, there are many cases of pipeline corro...

AI Technical Summary

Problems solved by technology

However, the system still has the following problems: when the relevant data of pipeline cathodic protection is abnormal, it cannot remind the management personnel, and it cannot realize real-time monitoring and management of the protected facilities in the field and under harsh environmental conditions; and the obtained management data is only the potentiostat Or the data of the station equipment, generally lack the data of the test piles, that is, it cannot reflect the cathodic protection status of the entire pipeline

[0007] At present, the cathodic protection systems of some domestic companies are unmanaged and the system is idle. The cathodic protection system has only been tested and maintained at the initial stage of installation. When the cathodic protection system fails later, the owner cannot immediately know the on-site conditions of the pipelines and storage tanks. Lack of systematic monitoring management and remedial measures

[0008] In addition, most companies that have installed cathodic protection systems in China basically adopt manual inspections, manual records and maintenance and other artificial monitoring and detection methods. The decline in protection efficiency caused by recessive changes such as equipment aging, false data, and missing data cannot be detected in time, let alone corrected and dealt with in time

[0009] To sum up, it shows that although cathodic protection technology is adopted in domestic petrochemical underground pipelines, due to many imperfections in the technology itself, the owners of pipelines and storage tanks cannot know the real status of cathodic protection in time, and In management and actual operation, real-time monitoring and adjustment of the protection system in operation cannot be carried out, and there are great potential safety hazards

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