一种钢丝缠绕增强聚乙烯复合管道检测方法及系统

By combining acoustic imaging and beamforming algorithms, the problem of non-contact leak detection of steel wire-wound reinforced polyethylene composite pipes in complex industrial environments was solved, enabling precise location and accurate assessment of leak points.

CN122409086APending Publication Date: 2026-07-17CNNC NUCLEAR POWER OPERATION MANAGEMENT CO LTD
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Patent Information

Application Number
CN202610434994.0
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-04-03
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing technologies are insufficient for non-contact, long-distance leak detection of steel wire-wound reinforced polyethylene composite pipes in complex industrial environments, and their accuracy and adaptability are inadequate.

Method used

Non-contact scanning is performed using an acoustic imager, and an acoustic image is generated by combining a beamforming algorithm. Acoustic signals are captured by a microphone array and environmental noise is suppressed. Leakage points are evaluated by analyzing the dominant frequency characteristics, and a model of the correspondence between the leakage aperture and the dominant frequency characteristics is established.

Benefits of technology

It enables precise visualization and accurate location and assessment of leak points, improving the accuracy and adaptability of detection, and effectively identifying minute leaks in complex environments.

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Abstract

本发明涉及管道检测领域,尤其涉及一种钢丝缠绕增强聚乙烯复合管道检测方法及系统。所述方法为:使用声学成像仪对目标管道进行非接触式扫描,采集声信号并监测环境噪声的声压级;处理所述声信号,并基于波束形成算法生成声像图,所述声像图用于在可见光图像上可视化地标注一个或多个疑似泄漏点;基于声图像数据,对于疑似泄漏点的异常声信号,提取其主频特征;当所述主频特征在32kHz至43kHz范围内时,初步判定存在泄漏点;基于声像图精确定位泄漏点位置,根据泄漏孔径与主频特征的对应关系模型,定量评估泄漏等级。本发明适合钢丝缠绕增强聚乙烯复合管道检测,评估准确性高。
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Citation Information

Patent Citations

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  • Laser reflection type pipeline leakage detection method and device

    CN117628422A