城市供水管网漏损专项关键技术研究

发布时间：2018-06-27 06:58

本文选题：城市 + 供水管网　；参考：《苏州科技学院》2013年硕士论文

【摘要】：随着国内城市的迅速发展以及基础设施的不断建设,人们的生活水平不断提高,城市供水规模也在不断扩大。各大城市虽然根据自身发展需要改建和新建了许多供水管道,但不容忽视的是,仍有许多应该更换的管道仍在运行。这样的现象直接导致了我国城市供水管网漏损现象非常严重。在水资源弥足珍贵的当今社会,降低供水管网漏损率已成为城市供水行业一项重要课题。本文以苏州市高新区供水管网为研究对象,在构建苏州市高新区供水管网水力模型、全面了解供水管网水力状况的基础上,对苏州市高新区供水管网漏损管理关键技术展开了研究。在全面收集历史漏损统计资料的基础上,引入时间序列分析法自回归移动平均混合模型(ARMA),建立了苏州市高新区供水管网漏损预测模型,对苏州市高新区供水管网短期内漏损水量和漏损件数进行了预测。通过量化导致管道漏损的主要因素,选取管道管径、管道埋深、管道压缩模量、管道上方平均日交通流量、管网运行压力5大影响因子作为模型的输入参数,采用神经网络BP结构对苏州市高新区已更换的灰口铸铁管和镀锌钢管使用时间进行了拟合,并对区域内未更换的老旧管道安全使用时间进行了预测。以月平均漏损控制总费用最小为目标函数,对苏州市高新区供水管网“经济漏水量”进行了求解,并对供水管网漏损检测周期进行了优化。利用建立的苏州市高新区供水管网水力模型模拟了现阶段及供水量增大时的运行工况,并对管网现阶段存在的问题进行了分析,提出了远期规划的建议。通过建立管道爆管危险函数,结合模拟出的管网压力状况,对苏州市高新区供水管网爆管概率进行了模拟。本论文的目的旨在为供水管网漏损管理提供一些新的优化思路,为供水企业管理工作提供决策支持与技术参考。
[Abstract]:With the rapid development of domestic cities and the continuous construction of infrastructure, people's living standards have been improved, and the scale of urban water supply is expanding. Although many large cities have built and built many water supply pipelines according to their own development, there are still many pipes that should be replaced. The leakage of water supply pipe network in China is very serious. In the precious modern society of water resources, reducing the leakage rate of water supply network has become an important issue in the urban water supply industry. This paper takes the water supply network of Suzhou hi tech Zone as the research object, and constructs a hydraulic model of water supply network in Suzhou high and new zone. On the basis of the hydraulic condition of the water supply network, the key technology of leakage management in the water supply network of Suzhou high tech Zone is studied. On the basis of collecting the historical leakage statistics, the time series analysis method of autoregressive moving average mixed model (ARMA) is introduced, and the leakage prediction model of the water supply network in Suzhou hi tech Zone is established, and the Suzhou city is established. In the short term, the leakage of water and the number of leakage in the water supply network of the high and new zone are predicted. By quantifying the main factors leading to the leakage of the pipeline, the 5 influencing factors of the pipe pipe diameter, the buried depth of the pipe, the pipeline compression modulus, the average daily traffic flow above the pipeline, and the operating pressure of the pipe network are used as the input parameters of the model, and the BP structure of the neural network is adopted to the Soviet Union. The use time of gray cast iron pipe and galvanized steel pipe has been fitted, and the safe use time of old and old pipes in the region is predicted. The objective function is to minimize the total cost of the monthly mean leakage control. The "economic leakage" of the water supply pipe network in Suzhou high tech Zone is solved, and the water supply pipe is applied to the water supply pipe. The leakage detection cycle of the network is optimized. Using the hydraulic model of the water supply network of Suzhou high tech Zone, the operating conditions of the current stage and the increase of water supply are simulated, and the existing problems in the current phase of the pipe network are analyzed, and the suggestion of the forward planning is put forward. By establishing the risk function of the pipe burst, the simulated pressure of the pipe network is combined. In this paper, the purpose of this paper is to provide some new optimization ideas for the leakage management of the water supply network and provide the decision support and technical reference for the management of the water supply enterprises in Suzhou.
【学位授予单位】：苏州科技学院
【学位级别】：硕士
【学位授予年份】：2013
【分类号】：TU991.33

【参考文献】