1、摘要本次毕业设计所选题目为囊谦县香达镇给水工程设计，囊谦县香达镇地处东经95215897070，北纬313220324346，位于青海省最南端，玉树州东南部，为澜沧江发展源头地区。合理评价囊谦县的地区优势，资源条件和不利因素，结合囊谦县国民经济发展“十一五”规划，提出的发展方向，制定出香达镇总体发展布局，以达到强化县域经济中心功能、推动全县社会经济发展的目的，而现如今的市政给水系统不能满足以后的发展需要，故需重新规划设计。城镇总体规划不仅是城市一定时期内建设发展的战略蓝图，而且是指导城镇建设与管理的纲领性文件和城镇社会经济发展与城镇建设的基础依据。而给水系统的规划是城镇总归的重要组成部分，所以
2、秉承与社会国民经济发展相协调的原则、超前性与现实相结合的原则、坚持高标准，高起点原则。制定出从实际出发，并且结合远景规划的，具有可操作性的设计规划。本设计的设计目的是把囊谦县香达镇给水系统建设成结构合理，符合城镇功能分区需求，布局合理，并且能够满足远期规划发展需要的给水系统，并以此为标准力求设计完整。香达镇是囊谦县的政治、文化、经济中心，规划中人口包括常住人口和暂住人口，近期规划城镇人口达2.7万人；远期规划城镇人口为3.5万人，城镇建设总用地为370.91公顷、人均为105.9平米，而其中居住安排用地为128.08公顷，人均为36.6公顷，其中规划最高建筑为5层故设计最低自由水头为24米，且
3、为了供水安全与经济因素考虑本设计采用环状管网与枝状管网相结合的原则布置，在居民区集中地区设置环网其余地方设置枝状管网。香达镇中扎曲河作为唯一流经此处的河流，故选用扎曲河作为取水源地，并在上游地区就近建立取水泵站与净水厂。本设计设计内容分三个部分：取水工程设计、给水厂设计、城镇输配水管网设计。主要内容有：水源地选择、取水方式及构筑物设计、确定水厂规模，选择净化工艺流程及净化构筑物型式、主要构筑物的设计计算与高程计算、城镇输配水管网的布置形式设计、主要干管、支管的设计流量及管径、高程计算。本设计设计成果为设计计算书以及13张附属图纸。包括：囊谦县香达镇总体规划图、水厂平面布置图、网格絮凝斜管沉淀池
4、平剖面图、普通快滤池平剖面图、清水池平剖面图、水厂高程布置图、管网平面布置图、管网最高用水时平差图。abstractThe graduation project titled Nangqn selected incense up to the town water supply engineering, Nangqn incense up to the town located in east longitude 95 2158 97 070, latitude 31 3220 32 4346 , located in the southernmost tip of Qinghai Provi
5、nce, Yushu southeastern source area for the development of the Lancang River. Reasonable evaluation Nangqn regional advantages, resource conditions and unfavorable factors, combined Nangqn economic development Eleventh Five-Year plan, put forward the development direction of the town to develop a fr
6、agrance of the overall layout of the development, the economic center of the county in order to achieve enhanced functionality to promote the countys social and economic development purposes, and is now a municipal water supply system can not meet the development needs of the future, so the need to
7、re-plan design. Not only is the city overall planning of urban construction and development of a strategic blueprint for a certain period, and urban construction and management to guide programmatic document and urban social and economic development and urban construction sound basis. The water supp
8、ly system planning is an important part of town is always so adhering to national economic development and social harmony principle ahead of time and reality principle of combining, adhere to high standards, high starting point principles. Worked out from reality, and the combination of vision, with
9、 a workable design and planning. This design is designed to put Nangqn incense up to the town water supply system into a rational structure, in line with urban function zoning requirements, the layout is reasonable, and long-term planning to meet the development needs of water supply system, and as
10、a standard and strive to design integrity. Incense of town is Nangqn political, cultural and economic center, the planned population consists of the resident population and transient population, recent planning urban population of 2.7 million people; term planning urban population of 3.5 million peo
11、ple, of land for urban construction total 370.91 hectares per capita of 105.9 square meters, of which 128.08 hectares of land for living arrangements, the per capita of 36.6 hectares, of which the tallest building planned for the five lowest free layer so the design head of 24 meters, and water secu
12、rity and economic factors in order to consider the design uses ring shaped branched pipe network and the principle of combining the pipe network layout, set in a residential area focused the rest of the ring network settings branched pipe network. Incense of the river as the only town in Zhaqu river
13、s flowing through here, so use Zhaqu river as a water source to take, and in the upstream areas near water pumping station and water purification plants to establish. This design Design content is divided into three parts: water engineering, waterworks design, urban design Water Distribution Network
14、s. Main contents are: water source selection, water ways and structures designed to determine the water scale purification process and purifying selection type structures, the main structures of the design calculations and elevation calculations, urban water distribution network layout form design,
15、the main trunk , the design flow and the branch pipe diameter, height computation. The design of the design results for the design calculations and 13 attached drawings. Including: Nangqn incense up to the town master plan, water floorplan grid flocculation Sedimentation tank flat profile, ordinary
16、rapid filter flat profile, clear pool flat profile, water elevation layout, pipe network plane layout, the highest when the water pipe network adjustment chart.目录1 概述11.1基础资料11.2工程设计22 设计用水量32.1用水量计算32.2各项用水量计算32.3最高日用水量52.4设计水量73取水工程设计83.1取水构筑物设计83.2取水泵站设计104 净水厂工艺设计144.1给水厂处理规模及流程144.2 水厂平面布置144.3混凝144.4沉淀224.5过滤274.6消毒334.7清
