给水管网压力驱动水力模型构建及降漏应用

发布时间：2018-01-29 05:50

本文关键词： 给水管网建模微观水力模型压力驱动水力模型压力控制漏失　出处：《中国给水排水》2016年15期 　论文类型：期刊论文

【摘要】：为解决传统微观水力模型节点流量为定值,难以模拟管网减压降漏、管网优化调度等压力变化以及节点流量需随之变化的弊端,结合我国华南地区中小型城镇管网实例,建立压力驱动管网水力模型,并应用于管网压力控制漏失。结果表明:在传统微观水力模型基础上将漏失量加到各节点上作为节点流量组成部分,形成压力驱动水力模型,并采用传统微观水力模型校核与压力驱动模型校核相互反复循环校核方式进行模型校正,可使其更加贴近真实管网运行情况。针对不同应用需求,构建不同精度水力模型,在传统微观水力模型基础上进行不同改进,提高模型精准度及应用效果。
[Abstract]:In order to solve the traditional micro-hydraulic model node flow value is fixed, it is difficult to simulate the network decompression and leakage reduction, pipe network optimization and other pressure changes and node flow needs to change the drawbacks. The hydraulic model of pressure driven pipe network is established based on the example of middle and small cities and towns in South China. The results show that based on the traditional micro-hydraulic model, the leakage is added to each node as the node flow component, and a pressure-driven hydraulic model is formed. And the traditional micro-hydraulic model checking and pressure driven model checking are used to calibrate the model repeatedly, which can make the model more close to the actual operation of the pipe network, aiming at the different application needs. Different precision hydraulic models are constructed and improved on the basis of traditional micro hydraulic models to improve the accuracy and application effect of the models.
【作者单位】：广东粤海控股集团有限公司;广东粤港供水有限公司;哈尔滨工业大学市政环境工程学院;东莞常平粤海水务有限公司;
【基金】：广东省教育部产学研结合项目(2011A090200040) 国家自然科学基金资助项目(51278148) 欧盟第七框架“玛丽·居里行动”计划项目(PIRSES-GA-2012-318985)
【分类号】：TU991.33
【正文快照】： 给水管网建模是根据管网水力特性,以连续性方程及能量平衡方程为基础建立的数学模型(微观水力模型),是水司实现管网漏失控制、科学化管理必经之路[1]。管网建模过程中最重要的模拟环节是确定节点流量。传统管网建模认为节点流量为定值,并将漏失量按服务面积或管长比例分配到各

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