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Acoustic Detection of Pipeline Blockages in Gas Extraction Systems: A Novel Approach

Author

Listed:
  • Chun Liu

    (The National Joint Engineering Laboratory of Internet Applied Technology of Mines, China University of Mining & Technology (CUMT), Xuzhou 221116, China)

  • Zhongyi Man

    (College of Environment and Safety Engineering, Qingdao University of Science & Technology, Qingdao 266061, China)

  • Wenlong Li

    (School of Safety Engineering, China University of Mining & Technology (CUMT), Xuzhou 221116, China)

Abstract

Gas extraction is crucial for coal mine safety, yet pipeline blockages by solid slag and water severely hinder efficiency and pose risks. Traditional detection methods are limited by rapid signal attenuation and noise interference. In this study, an acoustic detection technology is introduced for pipeline blockages, utilizing sensors at potential blockage points to collect sound wave data. Experiments with a scaled pipeline model reveal that slag blockages produce characteristic peaks in the 1200 Hz–2000 Hz range, while water blockages show peaks in the 1 kHz–2 kHz and 3.5 kHz–4.5 kHz bands. The longitudinal blockage intensity and extraction pressure significantly affect the sound pressure levels. A reliable fitting model predicts the blockage intensity based on acoustic signals, achieving high accuracy. This novel method enhances blockage identification, offering a non-invasive, cost-effective solution that improves coal mine safety and efficiency.

Suggested Citation

  • Chun Liu & Zhongyi Man & Wenlong Li, 2024. "Acoustic Detection of Pipeline Blockages in Gas Extraction Systems: A Novel Approach," Energies, MDPI, vol. 17(19), pages 1-24, September.
    • Handle: RePEc:gam:jeners:v:17:y:2024:i:19:p:4875-:d:1488133
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    References listed on IDEAS

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    1. Xi, Xian & Tao, Yifan & Jiang, Shuguang & Yin, Chenchen, 2023. "Study on the formation mechanism and mechanical properties of composite foam slurry material for mine plugging," Energy, Elsevier, vol. 281(C).
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