定州市给水工程设计.doc

1、图书分类号：密 级：毕业设计(论文)半岛蓝湾大酒店给水排水工程设计THE DESIGN OF BUILDING WATER AND WASTEWATER ENGINEERING FOR THE PENINSULA ISLAND RESORT HOTEL 学生姓名学院名称专业名称指导教师20xx年月日xxx学院学位论文原创性声明本人郑重声明： 所呈交的学位论文，是本人在导师的指导下，独立进行研究工作所取得的成果。除文中已经注明引用或参考的内容外，本论文不含任何其他个人或集体已经发表或撰写过的作品或成果。对本文的研究做出重要贡献的个人和集体，均已在文中以明确方式标注。本人完全意识到本声明的法律结果

2、由本人承担。论文作者签名： 日期： 年 月 日xxx学院学位论文版权协议书本人完全了解徐州工程学院关于收集、保存、使用学位论文的规定，即：本校学生在学习期间所完成的学位论文的知识产权归徐州工程学院所拥有。徐州工程学院有权保留并向国家有关部门或机构送交学位论文的纸本复印件和电子文档拷贝，允许论文被查阅和借阅。徐州工程学院可以公布学位论文的全部或部分内容，可以将本学位论文的全部或部分内容提交至各类数据库进行发布和检索，可以采用影印、缩印或扫描等复制手段保存和汇编本学位论文。论文作者签名： 导师签名： 日期： 年 月 日 日期： 年 月 日摘要本设计是根据“定州市发展规划”要求而建的配套净水处理设施

3、，近期服务人口18万人，远期26万人。要求新建一座城市净水厂，自来水厂出水水质要求达到国家生活饮用水水质标准。整个工程包括三大部分：取水工程、净水工程和输配水工程。取水工程：根据该市的地形及地理条件，将水厂建于河流中上游，选用岸边式统一供水方案。进水室分2格，设淹没式进水口，每格设一个。一级泵房设计按近期规模110000 m3/d，考虑到水厂自用水量，采用1.05系数进水水泵选型。泵房共布置4台550S22A型水泵，3用1备，每台额定流量466.7L/s，扬程20 m。原水输送采用两根DN1000的球墨铸铁管。净水工程：（1）混凝：混凝剂采用聚合氯化铝（其中Al2O3为10%），投加量为60m

4、g/L，采用管道静态混合器混合。往复式隔板絮凝池反应时间20min，长31.9m，宽15m，有效水深2.0m，超高0.3m；（2）沉淀：平流沉淀池沉淀时间1.5h，表面负荷51.84m3/(m2h)，长76m，宽15m，总高3.9m，沉淀池进水采用穿孔花墙配水，孔口流速为0.2 m/s； （3）过滤：设2组普通快滤池，强制滤速采用1014m/h,长11m，宽11m，总高3.1m，反冲洗方式采用高位水箱供水方式，反冲洗强度为14 L/(s.m2)；（4）消毒：消毒采用液氯消毒，选用ZJ-型转子真空加氯机3台，2用1备，每台加氯机加氯量为1.6kg/h；（5）清水池：清水池调节容量按10% 设计，

5、总有效容积为11874m3，设2座清水池，单座平面尺寸为75 m20 m，有效水深4.0 m；（6）二级泵房：泵房内共设7台相同型号的单级双吸式离心泵350S125，5用2备，单泵额定流量350L/s，扬程125m。吸水管路采用DN600mm的钢管，压水管路采用DN450mm的钢管。输配水管网：主要包括管网的定线和管网的水力平衡计算，清水输水管道采用DN1200的球墨铸铁管，总长为1000 m。配水管网布置成环状，由送水泵站统一输水。根据最高日最高时用水量分配流量并进行管网平差，进行消防及事故校核，以符合设计规范要求。该工程的建成和投产有望能够有效解决定州市目前存在的供水能力不足现状，较大幅度

6、地提高该市饮用水的安全可靠性。关键字 取水工程；净水工程；输配水管网AbstractThe design is built according to the requirements of development plan Dingzhou city supporting water treatment facilities, the service population of 180000 people, 260000 people of long-term. New city waterworks, water quality water plant reach the national

7、standard for drinking water quality.The whole project includes three parts: water engineering, water engineering and water transmission and distribution engineering.Water intake project: according to the terrain and geographical conditions of the city, will be built in the upper reaches of the river

8、 water, the shore type unified water supply scheme. The water inlet chamber 2 lattice, a submerged inlet, a per frame. Water pump station is designed according to the scale of the recent 110000 m3/d, taking into account the water consumption, water pump selection by means of 1.05 - coefficient. The

9、pump is arranged 4 pumps, 3 prepared with 1, each rated flow 466.7L/s, head 20 M. Raw water is made of ductile cast iron pipe of two DN1000.Water purification project:(1) coagulation: coagulant uses polyaluminium chloride (Al2O3 10%), dosage of 60mg/L, using the static mixer. Reciprocating baffled f

10、locculation reaction time 20min, length 31.9m, width 15m, the effective depth of 2.0m, high 0.3m;(2) precipitation: horizontal flow sedimentation tank settling time of 1.5h, the surface load 51.84m3/ (m2 h), long 76m, wide 15m, high 3.9m, inlet perforated tracery wall water clarifier, orifice flow r

11、ate was 0.2 m/s;(3) filter: there are 2 groups of conventional rapid filter, forced filtration rate by 10 14m/h, length 11m, width 11m, high 3.1m, backwashing way with high water supply mode, backwashing strength was 14 L/ (s.m2);(4): disinfection disinfection by chlorine disinfection, use ZJ- type

12、rotor vacuum chlorine adding machine 3, 2 with 1, each chlorinator dosage is 1.6kg/h;(5) the clear pool: pool of water regulation capacity by 10%, the total effective volume of 11874m3, equipped with 2 clear pool, single-seat plane size of 75 m 20 m, the effective depth of 4 m;(6) the two pump: sing

13、le stage double suction centrifugal pump 350S125 pump room, a total of 7 sets of the same type, 5 prepared with 2, single pump rated flow 350L/s, head 125m. Suction pipeline using DN600mm steel pipe, steel pipe water pressure pipe with DN450mm pipe. Steel raw water using two DN1200.WDN: mainly inclu

14、ding the calculation of hydraulic balance of fixed line network and pipe network, water pipes by adopting nodular cast iron DN1200 tube, for a total of 1000 m.Water distribution network layout in a circle, the unified water pump station. According to the highest daily maximum hourly water consumptio

15、n distribution flow and pipe network adjustment, fire and accident check, in order to meet the requirements of the design code.The project completed and put into production is expected to be able to effectively solve the water supply capacity of the existing problem of Dingzhou City, greatly improves the reliability and safety of drinking water in the city.Keywords water intake engineering water purification water distribution networkV目 录1 绪论11.1 我国水环境现状11.2 给水系统11.2.1 取水工程11.2.2 净水工程11.2.3 输配水管网51.3 国内