给水课程设计--崔鹏.docVIP

目录 第一章 总 论······································3 §1-1设计任务及要求···································3 §1-2基本资料·········································3 第二章 总体设计·····································5 §2-1工艺流程的确定···································5 §2-2处理构筑物及设备型式选择·························6 第三章 混凝沉淀·····································7 §3-1药剂投配设备的设计·······························7 §3-2混合设备的设计···································7 §3-3反应设备的设计···································8 §3-4沉淀澄清设备的设计·······························9 第四章 过 滤·····································10 滤池的设计计算········································10 第五章 消 毒·····································13 §5-1加药量的决定·····································13 §5-2设备的选择·······································13 §5-3加药间的布置·····································14 第六章 其它设计·····································14 §6-1清水池的设计计算·································14 §6-2泵房设计计算。····································15 第七章 水厂总体布置································15 §7-1水厂平面布置·····································15 §7-2水厂高程布置·····································15 参考文献················································ 17 总论 §1-1设计任务及要求 一、设计题目：四川某县城自来水厂的初步设计 二、设计内容 确定净水厂的设计水量 确定净水厂工艺流程和净水构筑物型式 各净水构筑物的设计计算，并附必要的草图 绘制水厂各净水构筑物、建筑物、各种管渠及道路等的平面布置图。 绘制净水构筑物的高程布置图。 三、设计成果 设计说明书一份； 绘制设计图纸一张 (1)净水厂平面布置图（1:200～1:500） (2)水厂处理工艺高程布置图（纵：1:50～1:100,横：1:100～1:300） §1-2基本资料 现用水量：50000m3/d 给水水源：桃河 水质资料：原不为穿城河流，取水口在城镇上游，水质较好，含砂量较低（平均含砂量0.4kg/ m3），上游无工业污染和集中生活污水污染。 原水水质资料如下： 项目 含量 项目 含量 浑浊度 300～1000mg/l 耗氧量 20mg/l 色 度 10度 总硬度 3度(德国度) 水 温 10～20℃ 暂时硬度 3度(德国度) PH值 7.5～8.0 氯化物 21mg/l 细菌总数 12000个/ml 总固体 298mg/l 大肠菌数 33000个/l 碱 度 8度 臭和味 微 量 地质资料 (1)拟建水厂区域工程地质钻探资料 通过工程地质钻探，地层构造为：表层为0.5～0.7m厚的耕土，以下均为密实压粘土，地下12m处才有基岩露头。 地下水位在地表8m以下，地下水无浸蚀性。地基耐压力为15T/㎡。 (2)该城镇地震资料 据记载，该地区未发生过破坏性地震，据地震监测总的记录，该地区最大震级为6级，地震裂度为6度。 由四川地震局推荐，该地区建筑设计按地震裂度7度设防。 水文资料 桃河由西向东穿城而过，拐向镇东南流出城。河上设有两座通行汽车的大桥。 河流常年流量较大，上游设有一大型水库调节，因此河流枯水位及流量变化不大。 该河流为