1、 XXXX 年给水排水工程毕业设计 毕毕 业业 设设 计计 题题 目目: 指导老师:指导老师: 学生姓名:学生姓名: 学生学号:学生学号: 所属院系:所属院系: 专专 业:业: 班班 级:级: 完成日期完成日期: XXXX 年给水排水工程毕业设计 毕业论文(设计)任务书毕业论文(设计)任务书 摘要摘要 本设计为新疆和静县输配水管网及自来水厂工艺设计,工程设计规模为 66968.22m3/d。城市人口密度为 200 人/公顷。 该县的地形特点是北高南低,东高西低,县城平均海拔在1047 1092米之 间。项目区内常年主导风向为西北风。 本设计为新疆和静县某区给水初步设计。 水源采用水库取水。净水
2、厂产水能力越 7 万dm/ 3 。净水工艺采用常规处理 工艺。 净水工艺流程为: 原水管式混合器网格絮凝池异向流斜管沉淀池V 型滤池液氯消 毒清水池二级泵站市政管网 根据原水水质及水温,絮凝剂选用聚合氯化铝,最高投药量为 30mg/L。水 厂绿化面积占水厂总面积的 35%。出水水质符合生活饮用水卫生标准 (GB5749-2006)。 给水管网考虑到经济性和安全性, 给水管网采用树状网与环状网结合的布置 形式,进行了管网最高日最高时计算,消防校核计算,事故校核计算,保证用水 的安全性。 关键词:网格絮凝池;异向流斜管沉淀池;V 型滤池;管网计算 XXXX 年给水排水工程毕业设计 Absterac
3、t: The design is for water distribution network and engineering project in the water supply plant in Hejing County, Xinjiang Uygur Autonomous Region. The scale of the design is 66968.22m3/d, the population density of the city is 200 people per square kilometer. The geological feature of the county i
4、s high in the northern and eastern part, while relatively low in other regions. The altitude of the county reaches 1047 to 1092 meters. Northwestern winds dominates in the area. The design is an initial one for a community in Hejing County, Xinjiang Autonomous Region. The reservoir serves as the sou
5、rce of tap water, the net water production capacity is over 70000dm/ 3 , employing the standard process to treat the water. raw water tube type mixerReciprocating baffled flocculation tank Differential flow inclined tube sedimentation tank V-filter clearwell secondary pumping station Pipeline Networ
6、k of city It will adopt flocculants made of polymeric aluminium with no more than 30mg per liter. The flocculants is decided by original water quality and temperature. The greening area covers 35% of the water supply plant. The water quality meets the demands of Hygienic Sanity Standard (GB5749-2006). Water supply pipe network considering the economy and safety, water supply pipe network using a t