管网宏观模型的完善及节能减漏应用

基于宏观模型可建立管网压力控制模型，并将其应用于桂城水厂。运行结果表明，采用管网压力控制模型后，水厂供水范围合理，远端压力精度为±0．001MPa；控制泵群工况点沿管网压力曲线运行，调节后的流量和压力均能满足用户要求，同时使小区阀门减漏效应扩展至整个管网，可有效降低管网的漏损率；修正宏观模型及水力模型调度压力有利于在供水调度过程中实现节能节水。

Perfection of network macroscopic model and application of energy conservation and leakage control

The network pressure control model was established based on macroscopic model, and it was applied to Guicheng Waterworks. The operational results showed that the water supply area was reasonable and the remote pressure accuracy was ＋ 0. 001 MPa after adopting the network pressure control model. The operating points of the control pump sets operated along with the pressure curves of network, and regulated flow and pressure could meet the requirements of users. Meanwhile leakage control of the residential area valves could be expanded to the whole network, and the network leakage rates could be reduced effectively. The modification of macroscopic model and dispatching pressure of hydraulic model were beneficial to realize energy and water saving in dispatching of water supply.