[1]何锐,俞亭超,邵煜.监测供水管网爆管的测压点优化布置方法[J].中国给水排水,2020,36(17):36-40.
HE Rui,YU Ting-chao,SHAO Yu.Optimal Placement Method of Pressure Monitoring Points for Monitoring Water Supply Pipe Burst[J].China Water & Wastewater,2020,36(17):36-40.
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HE Rui,YU Ting-chao,SHAO Yu.Optimal Placement Method of Pressure Monitoring Points for Monitoring Water Supply Pipe Burst[J].China Water & Wastewater,2020,36(17):36-40.
监测供水管网爆管的测压点优化布置方法
中国给水排水[ISSN:1000-4062/CN:12-1073/TU]
卷:
第36卷
期数:
2020年第17期
页码:
36-40
栏目:
出版日期:
2020-09-01
- Title:
- Optimal Placement Method of Pressure Monitoring Points for Monitoring Water Supply Pipe Burst
- Keywords:
- pipe burst; pressure monitoring point; heuristic algorithm; pressure variation matrix; burst threshold
- 摘要:
- 为探究一种适用于管网爆管时监测各节点压力变化的测压点优化布置方法，结合华东JX市供水管网模型与历史统计数据，通过处理与分析，提出了一种测压点优化布置的启发式算法。首先对该供水管网历史数据进行统计分析得出各节点爆管阈值；然后在基准工况下对管网进行平差计算，获得各节点压力；再在各管段中间添加漏损口模拟爆管，对其赋射流系数，迭代计算爆管后各节点压力，计算前后差值得到压力变化值矩阵。将压力变化值矩阵中变量值与爆管阈值作比较获得0-1爆管判断矩阵，通过对该矩阵处理分析、编程计算，得到合适的监测点布置顺序。实例计算表明，在总计640根管段的管网中布置5个监测点时能够监测到467根管段，占比73.0%；布置10个监测点时能监测到545根管段，占比85.2%。可见，使用该方法布置的测压点监测范围广。在最经济情况下布置的监测点能均匀分布在管网中，并能有效监测管网爆管。
- Abstract:
- In order to explore an optimal placement method of pressure monitoring points suitable for monitoring pressure change of each node when pipe burst, a heuristic algorithm was proposed through processing and analyzing the water supply network model and historical statistics of JX city in East China. Node pressure burst threshold at each node was first acquired by statistically analyzing historical data of the water supply network. Pressure of each node was obtained by compensating computation under standard condition. A virtual node was then added in the middle of the pipe to simulate pipe burst. A given efflux coefficient was set to obtain the corresponding pipe burst pressure of each node through iterative calculations, and pressure difference was calculated to obtain the pressure variation matrix. The judgment matrix ranging between 0-1 of pipe burst was obtained by comparing the variable value in the matrix with the threshold value. An appropriate monitoring point layout order was obtained through the matrix processing analysis and programming calculation. When five monitoring points were arranged in a total of 640 pipe sections, 467 pipe sections could be detected, accounting for 73.0% of the total pipes. When 10 monitoring points were set up, 545 pipe sections (accounting for 85.2% of the total pipes) could be detected. Therefore, it could be seen that the monitoring range of pressure monitoring points arranged by this method was wide. Under the most economical condition, the monitoring points could be evenly distributed in the pipe network, and the pipe burst could be effectively monitored.
更新日期/Last Update:
2020-09-01