18万吨每天给水厂设计说明书.doc

PAGE / NUMPAGES 南海市某区给水规划和水厂工艺设计 摘 要 本设计的主要任务是南海市某区给水工程初步设计。设计的主要内容包括：设计规模的确定、给水系统选择、给水方案比较、取水工程设计、净水厂设计、二级泵房设计和输配水管网的计算与平差。设计书由设计说明书和设计计算书两部分组成。 本设计的近期设计规模是12万m3/d，以河流为水源。采用的给水系统为：源水→一泵站→配水→混凝剂投入混合→往复式隔板絮凝池→平流式沉淀池→普通快滤池→清水池→二级泵房→城市管网。选用硫酸铝为混凝剂，液氯为消毒剂。水厂出水水质要求达到《生活饮用水卫生规范》（2001） 。 该区为国家级工业园区。现有工矿企业1000多家，主要以IT电子制造、机械制造、食品加工等为该市主要工业部门。有大专院校及科研设计单位和国际教育园区。水厂绿化面积约占30％，附属面积约占总面积的15％，力争创建一个清新怡人的现代化水厂。 关键词给水工程设计；往复式隔板絮凝池；平流沉淀池；普通快滤池；城市管网 Zone D of The city of Nanhai water supply planning and water process design Abstract The design of the main tasks of District, Nanhai City, the preliminary design of water supply. Design of the main contents include: the determination of the design scale, water supply system selection, water supply scheme comparison, water engineering, water treatment plant design, two pumping stations and distribution pipe network design calculation and adjustment. Design document from the design specifications and design calculations of two parts. The design of the recent design scale is 12000m3 / d, to the river for water. Water supply system is used: the source of a water pumping station → → → coagulant into the water mixed with reciprocating diaphragm flocculation → → → horizontal sedimentation tank→ ordinary rapid filter pump clear water tank → second → City Pipe. Use aluminum sulfate as coagulant, liquid chlorine as disinfectant. Effluent quality requirements of water to drinking water health standards (2001). The area is state-level industrial park. More than 1000 existing industrial and mining enterprises, mainly in the IT electronics manufacturing, machinery manufacturing, food processing, as the citys main industrial sectors. With tertiary institutions and research and design units and international education park. Green area of about 30% water sub area of about 15% of the total area, and strive to create a refreshing modern water plant. KeywordsWater-supply engineering design；Reciprocating clapboard；horizontal sedimentation tank；Ordinary f