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Pipeline leakage detection and localization in the Aqueous Homogeneous Reactor (AHR) RGC system entails a paramount safety concern due to the presence of hydrogen in the transported medium. With the widespread application of optical fiber sensing technology, improving the accuracy of pipeline leak detection and localization is an urgent and critical problem to solve. This paper investigates the feasibility of employing Ultra-Weak Fiber Bragg Grating (UWFBG) array sensing technology for leakage detection and localization in AHR RGC system pipelines. By deploying UWFBG array along a physical pipeline mock-up, leakage signals were simulated and captured for subsequent analysis. This paper proposes a pipeline leakage detection and location algorithm based on the sum of power spectral density (PSD). The approach utilizes the CEEMDAN algorithm for denoising complex vibration signals, followed by leakage detection and localization through PSD summation, significantly reducing false alarm rates in pipeline leakage monitoring. The advantage of this method is that it is not limited by the length of the pipeline, having a high leakage detection rate, and the localization accuracy can reach one monitoring zone.

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UWFBG Array Vibration Sensing Technology for Aqueous Homogeneous Reactor RGC System Pipeline Leakage Detection and Location

  • 会议论文

  • 发表日期：

    2025年

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  • Yinjie Zhang,
  • Zhengxi He,
  • Tao Xu,
  • Danhui Liu,
  • Zhuoyue Li,
  • Zhiguang Deng,
  • Hailin Wang,
  • Yue Qin,
  • Li Zhengxi,
  • Liang Chen

摘要

Pipeline leakage detection and localization in the Aqueous Homogeneous Reactor (AHR) RGC system entails a paramount safety concern due to the presence of hydrogen in the transported medium. With the widespread application of optical fiber sensing technology, improving the accuracy of pipeline leak detection and localization is an urgent and critical problem to solve. This paper investigates the feasibility of employing Ultra-Weak Fiber Bragg Grating (UWFBG) array sensing technology for leakage detection and localization in AHR RGC system pipelines. By deploying UWFBG array along a physical pipeline mock-up, leakage signals were simulated and captured for subsequent analysis. This paper proposes a pipeline leakage detection and location algorithm based on the sum of power spectral density (PSD). The approach utilizes the CEEMDAN algorithm for denoising complex vibration signals, followed by leakage detection and localization through PSD summation, significantly reducing false alarm rates in pipeline leakage monitoring. The advantage of this method is that it is not limited by the length of the pipeline, having a high leakage detection rate, and the localization accuracy can reach one monitoring zone.