管道内检测设备速度控制系统研究进展

Progress in Study of Speed Control System in Piping Inner Inspecting Device

在高流速介质环境下,管道内检测设备存在清管效果不佳、检测精度低等问题,同时还会增加内检测设备在管道内的运行风险。分析了内检测设备在管道内运行时的受力状态,指出搭载速度控制系统可实现对内检测设备运行速度的调控,速度控制系统调速区间与速控装置自身结构、泄流面积等因素有关。目前速度控制装置的设计主要利用经验、试制的方式进行,缺乏有效的模型、相关的试验测试数据指导速度控制装置的研制。为确保速度控制系统失效后内检测设备仍能继续运行,需要开展内检测设备闭锁装置的研究。

In case where fluid flows with high velocity, when using inner inspection device for pipeline there exist the problems of poor effect in pipe cleaning and low sensitivity in inspection, and moreover the risk of device operation exists. In this article, the loading of inner inspection device in operation in piping was analyzed. It was indicated that carried with velocity control system, inner inspection device can be adjusted in its operation velocity. The velocity adjustment scope is related to the structure of velocity control system and the flow area in it. Currently, velocity control system is designed based on experience and the results of test, and there lack of efficient model and relative data from test. Thus in order to ensure that inner inspection device can still be operated after velocity control system fails, it is necessary to carry out the study of interlock device used in inner inspection device.