本文選題：供水管網(wǎng) + 節(jié)點水齡　； 參考：《青島理工大學》2013年碩士論文

【摘要】：自來水廠處理達標后的生活飲用水，，經(jīng)過錯綜復雜的城市供水管網(wǎng)系統(tǒng)輸送到用戶的過程中，在管道中會發(fā)生一系列的物理、化學和生物反應，供水水質(zhì)會發(fā)生一定的變化，甚至一些供水點會發(fā)生水質(zhì)不達標的現(xiàn)象。因此，加強供水管網(wǎng)水質(zhì)的監(jiān)測運行管理，研究供水管網(wǎng)水質(zhì)優(yōu)化技術(shù)，分析、模擬從而進一步改善供水管網(wǎng)水質(zhì)是十分必要的。本文以黃河下游某大城市多水源局部供水管網(wǎng)為研究對象，以供水管網(wǎng)水質(zhì)為研究目標，建立管網(wǎng)模型模擬分析實例供水管網(wǎng)的水質(zhì)情況，以節(jié)點水齡為水質(zhì)參數(shù)，研究了水齡的計算方法、變化規(guī)律，及余氯隨節(jié)點水齡的變化規(guī)律，為應用節(jié)點水齡評價管網(wǎng)水質(zhì)、加強供水管理提供了可靠的理論基礎(chǔ)，也為水質(zhì)安全保障及供水系統(tǒng)的調(diào)度管理提供了技術(shù)支撐，對于供水企業(yè)提高供水水質(zhì)具有重要的現(xiàn)實意義。 首先，論文研究了節(jié)點水齡在供水管網(wǎng)領(lǐng)域的研究及應用現(xiàn)狀，了解到國內(nèi)外對節(jié)點水齡的研究還不夠深入，但供水管網(wǎng)中節(jié)點水齡的特性及其與余氯等水質(zhì)參數(shù)的關(guān)系，決定了其作為一個管網(wǎng)水質(zhì)參數(shù)，對于供水管網(wǎng)水質(zhì)分析及優(yōu)化有很重要的作用。因此，論文隨后主要研究了節(jié)點水齡的計算方法問題，發(fā)現(xiàn)了現(xiàn)有計算方法的不足，在總結(jié)既有計算方法的基礎(chǔ)上，提出了應用定義法來計算節(jié)點水齡的方法，并利用MFC界面開發(fā)系統(tǒng)將計算結(jié)果進行了可視化。 其次，在準確計算節(jié)點水齡值后，論文主要研究的是供水管網(wǎng)節(jié)點水齡的變化規(guī)律問題。包括不同復雜程度的供水管網(wǎng)系統(tǒng)——簡單管網(wǎng)或多水源大型復雜管網(wǎng)系統(tǒng)；同一管網(wǎng)系統(tǒng)中不同位置的節(jié)點——臨近水源的節(jié)點或是管網(wǎng)末梢節(jié)點，以及管網(wǎng)系統(tǒng)中的普通節(jié)點等。發(fā)現(xiàn)不同管網(wǎng)、相同管網(wǎng)中的不同節(jié)點表現(xiàn)出的節(jié)點水齡變化規(guī)律不同，主要有突變性變化、周期性變化、線性變化及與供需水量相關(guān)的變化規(guī)律。 再次，不論是研究節(jié)點水齡的計算方法，還是分析不同管網(wǎng)系統(tǒng)不同節(jié)點的水齡變化規(guī)律，研究中都應用到了論文所依托的管網(wǎng)系統(tǒng)——黃河下游某大城市多水源局部供水管網(wǎng)，因此論文又以余氯、鐵離子、濁度為水質(zhì)參數(shù)，分析該實例管網(wǎng)系統(tǒng)的水質(zhì)現(xiàn)狀，發(fā)現(xiàn)一些監(jiān)測點個別時段余氯不達標，鐵離子達標但仍需要盡量降低，濁度全部達標但相比與美國標準，還可以進一步改進。同時建立實例管網(wǎng)系統(tǒng)的水力水質(zhì)仿真模型，利用EPANET2.0軟件對其水質(zhì)現(xiàn)狀及余氯衰減情況進行模擬分析，確定了余氯衰減系數(shù)并運用余氯實測值對衰減系數(shù)進行了參數(shù)率定，為下一步研究余氯隨節(jié)點水齡的變化規(guī)律及以節(jié)點水齡作為水質(zhì)參數(shù)來分析供水管網(wǎng)系統(tǒng)水質(zhì)情況做鋪墊。 最后，以上述研究內(nèi)容為基礎(chǔ)，論文分析了多水源多泵站供水的現(xiàn)狀、優(yōu)點及其可能遇到的問題，發(fā)現(xiàn)現(xiàn)在多數(shù)管網(wǎng)趨于多水源多泵站化，但伴隨出現(xiàn)的問題就是水源水質(zhì)不同，水源切換時很可能引起“黃水”問題。同時以黃河下游某大城市多水源局部供水管網(wǎng)為實例管網(wǎng)進行供水區(qū)域的劃分，研究每個供水區(qū)域內(nèi)，沿著水流方向從水源到管網(wǎng)末梢節(jié)點的余氯隨節(jié)點水齡的具體變化關(guān)系，提出了具體函數(shù)關(guān)系式，發(fā)現(xiàn)結(jié)果與一些文章中敘述的簡單的指數(shù)關(guān)系并不同，這為以節(jié)點水齡作為水質(zhì)參數(shù)來描述供水管網(wǎng)水質(zhì)變化，評價供水管網(wǎng)水質(zhì)情況提供了新的理論依據(jù)。
[Abstract]:In the process of handling the drinking water after reaching the standard, the water works will undergo a series of physical, chemical and biological reactions in the pipeline, and some changes in water quality will occur in the pipeline, and the water quality will not reach the standard in some water supply points. Therefore, the water supply network will be strengthened. It is necessary to study the water quality optimization technology of water supply network, analyze and simulate the water quality of water supply network. This paper takes the local water supply network of a large city in a large city of the lower reaches of the Yellow River as the research object, takes the water quality of the water supply network as the research target, and establishes a pipe network model to simulate and analyze the water supply network. According to the water quality of the node, the calculation method, the change law of the water age and the change rule of the residual chlorine with the age of the node water are studied. It provides a reliable theoretical basis for evaluating the water quality of the pipe network with node water age and strengthening the water supply management. It also provides technical support for the water quality safety protection and the dispatching management of the water supply system. It is of great practical significance for water supply enterprises to improve the quality of water supply.
First, the paper studies the research and application status of node water age in the field of water supply network. It is found that the research on the age of node water age at home and abroad is not enough, but the characteristics of the water age of nodes in the water supply network and the relationship between the water age of the node and the water quality parameters such as the residual chlorine determine the water quality of the pipe network as a water quality parameter and the water quality analysis and optimization of the water supply network. Therefore, the paper then mainly studied the calculation method of the node water age, found the shortage of the existing calculation method. On the basis of summing up the existing calculation method, the method of calculating the node water age with the application definition method was put forward, and the calculation results were visualized by using the MFC interface opening system.
Secondly, after calculating the node's water age accurately, the paper mainly studies the change law of the water age of the node of the water supply network, including the water supply network system of different complexity - the simple pipe network or the large and complex pipe network system of multi water source; the nodes of different positions in the same pipe network - the nodes near the water source or the end of the pipe network The tip nodes and common nodes in the pipe network system have found that the changes in the water age of the nodes in the different pipe network and the same pipe network are different, such as abrupt change, periodic change, linear change and the law of change related to the water supply and demand.
Again, whether it is the calculation method of the water age of the study node, or the analysis of the changing law of the water age of different nodes of different pipe network systems, the study is applied to the pipe network system supported by the paper, the water supply network of a large city in a large city in the lower reaches of the Yellow River, so the paper also uses the residual chlorine, iron ion and turbidity as the water quality parameters to analyze the example The water quality status of the pipe network system is found to be not up to the standard of residual chlorine in some monitoring points, but the iron ion reaches the standard but still needs to be reduced as far as possible. All the turbidity reaches the standard but compared with the American Standard, it can be further improved. At the same time, the water quality simulation model of an example pipe network system is set up, and the water quality status and the decay of the residual chlorine can be attenuated by the EPANET2.0 software The condition is simulated and analyzed. The attenuation coefficient of residual chlorine is determined and the parameter rate of the attenuation coefficient is determined by using the measured value of residual chlorine. The next step is to study the change rule of the residual chlorine with the water age of the node and to make the paving for the water quality of the water supply network system by the node water age as the water quality parameter.
Finally, based on the above research content, the paper analyzes the current situation of water supply in multi source and multi pumping stations, its advantages and possible problems. It is found that most of the pipe networks now tend to multi source and multi pumping station, but the problem is that the water quality is different and the water source can cause "yellow water" problem when the water source is switched. At the same time, a large amount of water in the lower reaches of the Yellow River can be found. The urban multi water source local water supply network divides the water supply area into the pipe network. In each water supply area, the specific relation formula of the residual chlorine of the node in the water flow direction from the water source to the end of the pipe network is put forward. The result is different from the simple index described in some articles. This provides a new theoretical basis for describing the change of water quality of water supply network and evaluating the water quality of water supply network by using node water age as a water quality parameter.

【學位授予單位】：青島理工大學
【學位級別】：碩士
【學位授予年份】：2013
【分類號】：TU991.2

【參考文獻】

相關(guān)期刊論文 前10條

1 陳偉煜;;飲用水管網(wǎng)中水質(zhì)優(yōu)化的研究[J];環(huán)境科學與管理;2007年02期

2 徐洪福,趙洪賓,尤作亮,張金松;配水系統(tǒng)的水質(zhì)模型研究概況[J];中國給水排水;2002年03期

3 趙志領(lǐng);趙洪賓;何文杰;陰沛軍;韓宏大;韓得志;;城市給水管網(wǎng)的水質(zhì)變化規(guī)律研究[J];中國給水排水;2006年19期

4 舒詩湖;趙洪賓;;我國給水管網(wǎng)系統(tǒng)建模的機遇與挑戰(zhàn)[J];中國給水排水;2008年08期

5 談勇;;飲用凈水管網(wǎng)余氯與細菌總數(shù)的相關(guān)性研究[J];中國給水排水;2009年13期

6 李尋;張土喬;翁風永;徐江和;;基于節(jié)點水齡的供水管網(wǎng)水質(zhì)研究[J];中國給水排水;2009年19期

7 袁一星,陳兵,趙明,趙洪賓,魏寶成;多水源供水分布及供水路徑[J];中國給水排水;1999年02期

8 王洋;張曉健;陳超;潘安君;徐揚;廖平安;張素霞;顧軍農(nóng);;水源切換引起給水管網(wǎng)黃水問題原因分析[J];環(huán)境科學;2009年12期

9 張馨予;李樹平;;基于EPANET-MSX的多水源供水管網(wǎng)余氯模擬研究[J];河南科學;2010年02期

10 �？�;高金良;袁一星;吳文燕;;基于虛擬現(xiàn)實的城市供水管網(wǎng)仿真系統(tǒng)[J];華南理工大學學報(自然科學版);2008年12期

相關(guān)博士學位論文 前4條

1 王亞;長江河口水流輸運時間的研究[D];華東師范大學;2011年

2 趙元;輸配水系統(tǒng)的脆弱性及風險評估研究[D];天津大學;2009年

3 王鴻翔;供水管網(wǎng)水質(zhì)模型校正及水質(zhì)監(jiān)控研究[D];浙江大學;2009年

4 趙明;輸配水系統(tǒng)水力與水質(zhì)安全研究[D];哈爾濱工業(yè)大學;2008年

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