基于虚拟声波的矿浆输送管道泄漏检测方法

Leak Detection Method for Slurry Pipeline Based on Virtual Acoustic Signal

针对负压波法和声波法对矿浆输送过程中普遍存在的缓变型异常信号不敏感的问题,提出了一种基于虚拟声波的矿浆输送管道泄漏检测方法。通过压力-声波转换及模型参数调节,将缓变泄漏转换成突变泄漏,可以在不改变原有的泄漏检测及定位算法的前提下,提高缓变型泄漏的检测能力。实验结果表明:该方法融合了负压波法和声波法的优点,对突发型泄漏和缓变型泄漏都具有较强的检测能力。

Aiming at the problem that the negative pressure wave method and the acoustic wave method are insensitive to the slow-varying abnormal signals in the slurry transport process,a method of slurry transport pipeline leakage detection based on virtual acoustic wave is proposed.By adjusting the parameters of the model and converting the slow leakage into abrupt leakage,the detection ability of the slow leakage can be improved without changing the original leakage detection and location algorithm.The experimental results show that the proposed method is suitable for both slow increasing leakage and abrupt leakage.