Pipeline potential monitoring device and method for synchronously monitoring potentials in different areas of pipeline

Abstract

The invention belongs to the field of corrosion monitoring and particularly relates to a device for monitoring the potentials in different areas in a seawater pipeline and synchronously monitoring the potentials in different areas of a pipeline. The device comprises a multi-channel potential collector (1), a linear reference electrode (4) and mounting flanges (3), wherein the linear reference electrode (4) is mounted in a to-be-monitored pipeline (23) through the mounting flanges (3) at the two ends; the linear reference electrode (4) is connected with the multi-channel potential collector (1) through a multi-core shield cable (2); the reference ground end of the multi-channel potential collector (1) is connected with the to-be-monitored pipeline (23) through a reference ground cable (5); and the linear reference electrode (4) is of a linear array structure and comprises multiple reference electrode units in uniform distribution. The device provided by the invention has the advantages of convenience in mounting, easiness in operation and convenience in use and can quickly measure and record the cathode protection potentials in different areas inside the pipeline.

Description

technical field [0001] The invention belongs to the field of corrosion monitoring and detection, and in particular relates to a potential monitoring device for different areas inside a seawater pipeline and a method for simultaneously monitoring the potentials of different areas of the pipeline. Background technique [0002] Both the corrosion monitoring of the inner wall of the seawater pipeline and the monitoring of the cathodic protection state of the inner wall need to monitor the cathodic protection potential of the inner wall of the pipeline. Inside the seawater pipeline, the conventional potential measurement method: hand-held underwater potentiometer or portable reference electrode, it is difficult to measure the potential. However, using point-shaped reference electrodes to monitor the potential of different areas of the pipeline requires installing multiple reference electrodes on the pipeline, which is very inconvenient to install and use, and it is impossible to ...

AI Technical Summary

Problems solved by technology

In seawater pipelines, conventional potential measurement methods: hand-held underwater potentiometer or portable reference electrode, it is difficult to measure potential

However, using point-like reference electrodes to monitor the potential of different areas of the pipeline requires installing multiple reference electrodes on the pipeline, which is very inconvenient to install and use, and it is impossible to intensively collect pipeline potential data

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