Application of Arrayed Magnetic Sensor Module in Real-Time Monitoring the Leakage of Subsea Pipeline

Application of Arrayed Magnetic Sensor Module in Real-Time Monitoring the Leakage of Subsea Pipeline

This paper designed a creative method which used YF-S201 hall sensors to build up a monitor system to detect the leakage in subsea pipeline. The research used the hall sensors implemented in the pipeline to monitor a part of flowrate in the pipeline per second to find if there's any leakage in it. Through this system, the location and size of leakage in pipeline can be calculated through Arduino Uno, then will be shown on LabVIEW interface. The theory of this paper is based on the conservation of mass, the experiment result proved that the flowrate of each hall sensor will be in only 10% difference due to error in measurement when there is no leakage in the pipeline. On the contrary, the flowrate will decline obviously when there is leakage in the pipeline. The flowrate will decline 23% and 53% when there is 1.98 cm2 and 5.28 cm2 leakage respectively. Through the change of flowrate, the system can use trend line and water velocity to calculate the size and location of leakage. Furthermore, there's a LabVIEW interface that can present flowrate of each hall sensor and the size and location of leakage clearly. The advantages of this method are economic and accurate. Most importantly, this method, better than ultrasonic guided wave and optical fiber, can be used in different materials and shapes. With this system, the leakage of subsea pipeline will be found and fixed in time. The quality of deep-sea water will also be improved.