發(fā)布時(shí)間：2018-01-15 18:01

  本文關(guān)鍵詞：基于多目標(biāo)約束的東北典型城市配水管網(wǎng)改擴(kuò)建優(yōu)化設(shè)計(jì)　出處：《哈爾濱工業(yè)大學(xué)》2015年碩士論文　論文類型：學(xué)位論文

  更多相關(guān)文章： 城市配水管網(wǎng) 單、多水源管網(wǎng)建模 管網(wǎng)改擴(kuò)建 粒子群算法

【摘要】：近四十年的改革開放以來,伴隨著國家綜合實(shí)力的提高,在城市化進(jìn)程步伐不斷加大的背景下,城市需水量的急劇增長與落后的城市供水能力之間的矛盾日益突出,城市供水能力逐漸成為制約城市發(fā)展和社會進(jìn)步的一個(gè)巨大的絆腳石。經(jīng)過對多個(gè)城市的調(diào)研、實(shí)地踏勘以及理論分析,城市供水能力不滿足城市需求的主要原因?yàn)橐韵聨c(diǎn):1、城市配水管網(wǎng)布局不合理,導(dǎo)致管網(wǎng)壓力失衡;2、配水管線鋪設(shè)年代久遠(yuǎn)、銹蝕嚴(yán)重,跑冒滴漏現(xiàn)象極其嚴(yán)重;3、泵站,閥門井等配水設(shè)施陳舊;4、配水管網(wǎng)現(xiàn)狀資料不完整等等。城市配水管網(wǎng)系統(tǒng)是一個(gè)體量龐大、控制因子復(fù)雜、眾多、管段節(jié)點(diǎn)等組成結(jié)構(gòu)繁冗,具有即時(shí)性、且為多因子控制運(yùn)行的不間斷的不可感知卻現(xiàn)實(shí)存在系統(tǒng)。人們對于不可感知卻現(xiàn)實(shí)存在的問題,多用建立模型解決。如果不經(jīng)過系統(tǒng)的計(jì)算,就會在實(shí)際運(yùn)行中會出現(xiàn)很多問題,一個(gè)小問題連帶出來一系列問題,這樣就帶來很多不必要的麻煩。如果要研究城市管網(wǎng)就需要建立的一個(gè)管網(wǎng)模型來模擬整個(gè)管網(wǎng)的運(yùn)行,在模型中解決可能出現(xiàn)的問題,經(jīng)調(diào)試后再實(shí)施,這樣做無論從經(jīng)濟(jì)上還是技術(shù)上都節(jié)約了大量的資源。本文從東北地區(qū)單水源供水的H市以及多水源供水的J市配水管網(wǎng)系統(tǒng)改擴(kuò)建規(guī)劃設(shè)計(jì)實(shí)際工程出發(fā),從簡單的單水源供水H市著手,通過對城市配水管網(wǎng)系統(tǒng)固有特性的探討和研究,詳細(xì)地介紹了給水管網(wǎng)建模理論知識以及其在實(shí)際工程的應(yīng)用。通過對H市現(xiàn)狀管網(wǎng)的建模,成功的利用模型將H市現(xiàn)狀管網(wǎng)進(jìn)行模擬運(yùn)行,模擬出的結(jié)果與實(shí)際相符,從而驗(yàn)證了模型的準(zhǔn)確性以及可行性。最后結(jié)合城市總體規(guī)劃,對管網(wǎng)進(jìn)行了改擴(kuò)建設(shè)計(jì),在利用模型進(jìn)行了技術(shù)以及經(jīng)濟(jì)最優(yōu)化的設(shè)計(jì),將老城區(qū)管網(wǎng)的36條管段進(jìn)行了改造,配水管網(wǎng)最高水壓由59m降至49m,最高流速由3.0m/s降至1.5m/s,最大的水頭損失由24m/km降至3.0m/km。在更加復(fù)雜的多水源供水的J市配水管網(wǎng),同樣得到成功地模擬了現(xiàn)狀,以及利用模型給出了J市的最經(jīng)濟(jì)合理的管網(wǎng)優(yōu)化設(shè)計(jì)方案,將老城區(qū)管網(wǎng)的48條管段進(jìn)行了改造,配水管網(wǎng)最高水壓由54m降至45m,最高流速由2.5m/s降至1.2m/s,最大的水頭損失由27m/km降至2.5m/km。
[Abstract]:After nearly 40 years of reform and opening up, with the improvement of the comprehensive strength of the country, the pace of urbanization has been increasing. The contradiction between the rapid increase of urban water demand and the backward urban water supply capacity is increasingly prominent. Urban water supply capacity has gradually become a huge stumbling block restricting urban development and social progress. Through the investigation of many cities field exploration and theoretical analysis. The main reasons why the urban water supply capacity does not meet the urban demand are as follows: 1. The distribution network layout is unreasonable, which leads to the imbalance of the pipe network pressure; 2, the distribution pipe line is laid for a long time, corrosion is serious, and the phenomenon of leakage is extremely serious; 3, pump station, valve well and other water distribution facilities old; The distribution network system is a large volume, complex control factors, numerous, pipe segment nodes and other components of the redundant structure, real-time. 4, distribution water distribution network information is not complete and so on. The urban water distribution network system is a huge volume, complex control factors, numerous, pipe segment nodes and other components of redundant, real-time. And for the multi-factor control operation of the uninterrupted imperceptible but real existence system. People for the inperceptible but the reality of the problem, the establishment of a model to solve the problem, if not through the system of calculation. In practice there will be a lot of problems, a small problem associated with a series of problems. If we want to study the urban pipeline network, we need to establish a pipe network model to simulate the operation of the whole pipe network, solve the possible problems in the model, and then implement the model after debugging. In this way, a lot of resources are saved both economically and technically. This paper starts from the actual project of the reconstruction and design of distribution network system of H city with single source water supply and J city with multi-source water supply in Northeast China. Starting from the simple single-source water supply H city, this paper discusses and studies the inherent characteristics of urban distribution water distribution network system. The theoretical knowledge of water distribution network modeling and its application in practical engineering are introduced in detail. Through the modeling of H city present situation pipe network, the model is successfully used to simulate H city current pipe network. The simulation results are consistent with the reality, which verifies the accuracy and feasibility of the model. Finally, combined with the overall planning of the city, the pipe network reconstruction and extension design is carried out. In this paper, the technical and economic optimization design is carried out by using the model, and the 36 pipe sections of the old city pipe network are reformed. The maximum water pressure of the distribution pipe network is reduced from 59m to 49m. The maximum velocity drops from 3.0 m / s to 1.5 m / s, and the maximum head loss decreases from 24 m / km to 3.0 m / km. At the same time, the present situation is successfully simulated, and the most economical and reasonable optimal design scheme of the pipe network in J city is given by using the model, and the 48 pipe sections of the old city pipe network are reformed. The maximum water pressure of the distribution network is reduced from 54 m to 45 m, the maximum flow velocity from 2.5 m / s to 1.2 m / s, and the maximum head loss from 27 m / km to 2.5 m / km.
【學(xué)位授予單位】：哈爾濱工業(yè)大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2015
【分類號】：TU991.33

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