摘要
推导并建立了基于管道压力、流量监测系统与长距离输水管水力模型相结合的爆管定位模型,根据爆管前后压力和流量实时监控数据的变化判断是否出现爆管,利用爆管前后的监测值变化计算爆管可能发生的位置。模型中采用了Ransac算法提取爆管定位模型的参数,并进行了参数敏感性分析。以南方某市长距离输水管线爆管实例进行了验证,结果表明该模型对于输水管实时爆管预警和定位是可行的,并能保障合理的精度。当爆管或异常现象发生时,可运用该模型指导一线人员及时到达现场核实和处理,提高爆管处理效率。
A model was proposed to locate the burst point in long distance water pipe, based on the pipeline flow and the pressure data from the monitoring system and the hydraulic model. The changes in pressure and flow in real-time monitoring data before and after the pipe burst were used to determine whether the pipe was bursting, and then to identify the location. In the model, the improved Ransac algorithm was applied to preprocess the monitoring data, and the parameters of the calculation model were extracted. The parameter sensitivity analysis was carried out. A real case of burst event was used to verify the model. Results showed that the long water pipe burst locating model was feasible according to real time SCADA monitoring data, and achieved reasonable accuracy. When the pipe burst, the model could notify the front-liners and improve the efficiency of pipe bursting responses.
作者
程伟平
陈梅君
许刚
龙志宏
CHENG Wei-ping;CHEN Mei-jun;XU Gang;LONG Zhi-hong(College of Civil Engineering and Architecture, Zhejiang University y Hangzhou 310058 , China;Guangzhou Water Supply Company, Guangzhou 510600 , China)
出处
《中国给水排水》
CAS
CSCD
北大核心
2019年第13期57-61,共5页
China Water & Wastewater
基金
国家自然科学基金资助项目(51578486)
广州市产学研协同创新重大专项民生科技专题(201604020019)
关键词
长距离输水管
爆管定位
水力模型
RANSAC
long distance water pipe
location of pipe burst point
hydraulic model
Ransac
