管网不均匀因数在某市现状给水管网水力计算中的应用

Application of Non-uniformity Factor in Hydraulic Calculation of Current Water Supply Pipe Network in a City

为高效精确对现状给水管网进行管网水力计算拟合,提出了管网不均匀因数,并给出了其取值方法。将该因数应用于某市的现状给水管网水力计算中,并采用该市38个现状压力监测数据验证了该管网模型和该方法的合理性与可靠性。结果表明,采用不均匀因数后可提高管网水力计算拟合精度74%,与实测值的均方根误差可控制在1 m以内。该研究中管网不均匀因数的提出和管网模型的建立对实际现状给水管网水力计算的应用具有理论价值和指导作用。

In order to efficiently accurately obtain hydraulic calculation and fitting of current water supply network,the non-uniformity factor of pipe network is proposed and its value method is given.It is applied to the simulation of current pipe networks of a city.The rationality and reliability of the pipe network model and the method are verified by 38 current pressure monitoring data.The results show that the fitting accuracy can be improved by 74%.The root mean square error between simulation value and the measured one can be controlled within 1 m.The non-uniformity factor of pipe network and establishment of pipe network model can guide the hydraulic calculation of current water supply network.