基于运动波理论吸油管路故障诊断

The fault diagnosis of oil pipeline based on the kinematic wave theory

液压系统广泛存在于煤矿生产机械中,如矿用破碎锤液压系统就是其正常工作的基本保障。针对液压系统吸油管路故障问题,提出用一种改进后的互相关原理结合静电传感器诊断矿用液压设备故障。通过监测油路速度,进而对液压设备管路进行监测,对矿用液压设备吸油管路故障进行故障诊断和预判。在模拟实验装置上进行了实验验证,其油路速度的重复性误差小于±1%,保证了故障诊断的准确性。利用运动波理论对互相关速度测量精度进行矫正,本测量系统具有较快的响应速度,可以通过监测矿用设备液压油管中油速度变化对其运行状态快速准确地诊断。

Hydraulic system is widely used in the production of coal mine machinery, such as that mine crushing hammer hydraulic system is the basic guarantee of its normal work. To the oil pipeline failure problems of hydraulic system, a new method was first proposed in conjunction with the relevant principles of mutual electrostatic sensor fault diagnosis of hydraulic equipment. By monitoring the speed of the oil, and then monitoring the pipe for hydraulic equipment, hydraulic equipment troubleshooting and pre-judgment. Completing the experimental verification with the simulation experiment device,repeatability error rate is less than its oil line ± 1%, and this ensures the accuracy of fault diagnosis. The measurement system has a faster response, you can monitor the hydraulic tubing Petroleum speed changes rapidly and accurately diagnose its operation.