长输管道应力应变自动化监测系统研究

为解决长输管道受高风险因素影响而存在的力学隐患,结合应力应变电测技术,研制了长输管道应力应变自动化监控系统。该系统通过应变采集器采集粘贴在管道表面的电阻应变片随管道变形产生的阻值变化,由数据转换处理器和自动控制箱共同完成数据的放大、转换、传输、存储和自动测量,并利用GPRS方式进行数据传输,实现数据的远程传输与控制。该系统可实时监控管道应力应变状态,为管道运营管理提供现实依据。

Study of pipeline stress and strain automatic monitoring system

To solve the mechanical hidden danger of long-distance pipeline caused by the high risk factors, the stress and strain automatic monitoring system of pipeline is developed. The system acquires the resistance variation caused by the resistance strain chip pasted on the pipeline surface with the pipeline deformation, and then the strain acquisition device, data conversion treatment device and automatic controller carry out the data acquisition, amplification, conversion, transmission, storage and automatic measurement. And the data transmission is performed in the form of GPRS, thus realizing the remote transmission and control of data. The system can monitor real time stress and strain condition of the pipeline, providing the realistic basis for the pipeline management.