廊坊市给水工程设计.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“廊坊市发展规划”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27万人。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。取水构筑物设计采用岸边式构筑物，集水井和取水泵房合建。泵房共布置3台24SA-18J单级双吸离心泵，2用1备，单台额定流量694.44L/s，扬程17.5 m，转速n=730r/min，配套电动机型号为Y355M-6。原水输送采用两根DN800的球墨铸铁管。水厂净水工艺如下： 原水一级泵站混凝沉淀过滤消毒清水池市政管网 水厂设计水量为10.5万m3/d，设计选用聚合氯化铝作为混凝剂，投加浓度为15%，采用湿投法自动控制投药，药剂最大

4、日投加量为51.4mg/L。设絮凝池2座,每座设计水量为52500 m3/d，每组平面尺寸为24 m14 m，总深2.8 m。絮凝池采用往复式隔板絮凝池，絮凝时间为20min。平流沉淀池与絮凝池合建，设2座，每组设计水量为52500 m3/d，每组平面尺寸为76 m14 m，总深3.5 m。水平流速14mm/s，停留时间1.56h。沉淀池进水采用穿孔花墙配水。普通快滤池设6座，对称双排布置，单格滤池面积为81 m2，滤池总高为3.10 m，平面尺寸为9m9m；设计滤速为8 m/h；反冲洗强度为13L/(sm2)；滤料采用单层均粒石英砂，厚度为1.2 m，粒径为0.901.20mm，不均匀系数为

5、1.21.4。消毒剂采用液氯。加氯点设置为滤后水加氯。加氯量为1.0 mg/L。加氯间设真空加氯机2台（1用1备），单台最大加氯量0.50.9 kg/h，加氯间与氯库合建，尺寸分别为7m9m、16m9m。清水池设计2座。清水池总有效容积为15750 m3，单座平面尺寸为40 m40 m，有效水深5.0 m。送水泵站采用350S75B型单级双吸式离心泵，泵房内共设7台（5用2备）相同型号的卧式离心泵。该种单泵额定流量为294.44L/s，H=53m，转速n=1450r/min，配套电动机型号为Y355M1-4。输配水工程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DN900钢管，总长

6、为260 m。配水管网布置成环状，由送水泵站统一输水。本次设计完成后可以解决廊坊市人们对于饮用水的水量及水质的需求，保证城市对于消防及浇洒道路及绿地的用水量。关键词 取水工程；净水工程；输配水工程；管网布置IIIAbstractThe design is built according to the requirements of development plan Langfang city supporting water treatment facilities, the service population of 180000 people, 270000 people of long-

7、term. New city waterworks, water quality water plant reach the national standard for drinking water quality.The whole project includes three parts: water engineering, water engineering and water transmission and distribution engineering.The water intake structure designed by the shore type structure

8、, water and water intake pump house building. The pump is arranged on 3 24SA-18J single stage double suction centrifugal pump, 2 prepared with 1, single rated flow 694.44L/s, head 17.5 m, speed n=730r/min, matching motor model Y355M-6. Raw water is made of ductile cast iron pipe of two DN800.The fol

9、lowing water purification process:The raw water, a pumping station, coagulation, sedimentation, filtration, disinfection, clean water pond municipal pipe networkPlant design capacity of 105000 m3/d, the design of poly aluminum chloride as a coagulant, dosage is 15%, with automatic control administra

10、tion wet cast method, reagent maximum daily dosage of 51.4mg/L.A flocculation tank 2 seats, each seat design content is 52500 m3/d, each group of plane size of 24 m 14 m, total depth of 2.8 m. Flocculation pool adopts the reciprocating baffled flocculation, flocculation time of 20min.Horizontal flow

11、 sedimentation tank and flocculation tank combined, 2 seats, each design content is 52500 m3/d, each group of plane size of 76 m 14 m, total depth of 3.5m. Horizontal velocity 14mm/s, residence time of 1.56h. Inlet perforated tracery wall with water tank.Filter 6 seats, symmetrical double-row arrang

12、ement, single-cell filter area was 81 m2, filter high total of 3.10 m, the plane size of 9m9m; design rate of filtration is 8 m/h; backwashing strength 13L/ (s m2); filter with single-layer homogeneous particle quartz sand, thickness of 1.2 m, particle size 0.90 1.20mm, non-uniform coefficient is 1.

13、2 1.4.The liquid chlorine disinfectant. Chlorination point set to the filtered water chlorination. Chlorine dosage is 1 mg/L. Chlorination vacuum chlorination machine 2 (1 with 1 for preparation), a single maximum dosage of 0.50.9 kg/h, chlorination and chlorine library construction, the dimensions

14、of 7m 9m, 16m 9m.The clear water tank design 2. The total effective volume of water tank is 15750 m3, single-seat plane size of 40 m 40 m, the effective depth of 5 m.IIIWater pumping station using 350S75B type single stage double suction centrifugal pump, pump room, a total of 7 units (5 with 2 for

15、preparation) horizontal centrifugal pump of the same type. The single pump rated flow for 294.44L/s, H=53m, speed n=1450r/min, matching motor model Y355M1-4.Water transmission and distribution engineering mainly includes the calculation of hydraulic balance of fixed line network and network. The water pipes with DN900 steel tube, for a total of 260m. Water distribution network layout in a circle, the unified water pump station.The completion of this design can solve the Langfang people for water quant