Long-distance pipeline cathode protection distributed potential monitoring system

Abstract

The invention discloses a long-distance pipeline cathode protection distributed potential monitoring system. The long-distance pipeline cathode protection distributed potential monitoring system comprises a data collection module, an optical fiber transmission module, a data processor and a remote computer monitor terminal, wherein the data collection module comprises a plurality of sensors whichare distributed on test poles buried along a long-distance pipeline and used for collecting on-site information, a signal output end of the data collection module is connected with a signal input endof the data processor through the optical fiber transmission module, a signal output end of the data processor is connected onto the remote computer monitor terminal, the remote computer monitor terminal transmits a control command into a plurality of cathode protection stations by analyzing data of the data processor, and synchronous controllers in the cathode protection stations control constantpotential rectifiers to output suitable potentials. Compared with the prior art, the long-distance pipeline cathode protection distributed potential monitoring system can achieve real-time monitor for the information of a buried site of the long-distance pipeline, and simultaneously uses a distributed control mode to control potential value of the constant potential rectifiers in all the cathodeprotection stations in real time, and thereby effectively reduces corrosion rate of the long-distance pipeline, and achieves the purpose of protecting cathode.

Description

technical field [0001] The invention relates to the field of pipeline potential monitoring, in particular to a long-distance pipeline cathodic protection distributed potential monitoring system. Background technique [0002] With the progress of society and the development of the country, the transportation volume of oil and gas is also increasing. The scale of long-distance pipelines has been further expanded. However, due to the long distance of long-distance oil and gas long-distance pipeline transportation, most of the long-distance pipelines are buried in the field, which requires a lot of manpower and material resources to manually inspect the line and measure the potential at the test piles along the long-distance pipeline to judge the station. Whether the potential of the potentiostat is set properly. Since changes in weather, seasons, regions and geology often affect the corrosion potential of long-distance pipelines, the potential of the potentiostat in the stati...

AI Technical Summary

Problems solved by technology

Although the problem of poor accuracy of manual detection has been overcome, the problem of poor timeliness has not been solved, that is, the monitoring data is not sorted in real time and cannot reflect real-time data

In addition, most of the distributed data collection in the past is a priority configuration, which is not suitable for the installation of field equipment, nor is it conducive to manual monitoring.

Images