城市给水厂课程设计.doc

popular innovation, the much anticipated entrepreneurial atmosphere. Six is to highlight the strong comprehensive and strict guarantees, constantly consolidate the basis of the party building. As the biggest achievement in grasping party building, fully strictly administering the party achieved remarkable results. Cast soul guben caught idea. Adhere to the important mission of inspiring, gather the people with common ideals, with development achievements inspired people, conscientiously study the partys latest theoretical achievements, further carry out various types of mass selecting mode selection, multiple trees and carrying forward the righteousness of fresh air, and constantly promote the development of positive energy together. Strict management of cadres. Developed has new promoted section cadres evaluation and debriefing approach, and township section cadres attendance report informed system and leaders talk talk approach, perfect has Township morning will system, specification has Township cadres management; according to good cadres standard selection cadres, set has heavy conduct, and heavy performance, and heavy grass-roots, and heavy public of oriented; research developed party work supervision and grass-roots party assessment evaluation approach, formed has three level Secretary linkage caught party of pattern. Wind Su JI caught style. Carry out three-three special education and strictly investigate and called upon to inform the name violates the Central eight rules of people and things, concentration and control of frivolity and not as style, as issues such as cadres style continuous improvement. Responsibility to catch the independent Commission against corruption. Strictly implement the 3883 responsibility, and fully cooperate with inspections of municipal party Committee, listen to the peoples congresses, Governments, CPPCC Committee, the County party Committee Standing Committee, Township departments mainly responsible for the implementation of responsibility briefing, step by step to carry out interviews, layers of conductive pressure, clean system continuously. 2015 work go hand in hand, with remarkable results, marked Twelve-Five collector of development success. In five years, the County in accordance with the effective strengthening four support and further development of the five industries, accelerate the construction of three major patterns strategy, focused, hard work, and promoting the rapid, sustained and healthy development of economy and society, becoming the fastest-accelerating the adjustment of the economic structure, enhance comprehensive strength, significant infrastructure improvements, urban and rural . For five years, wrote on the event in the history of jingchuan brilliant chapter. The practice shows that in five years, must adhere to the development the first priority is not shaken, must adhere to the project driven strategy up, must adhere to the deep development does not stop, must adhere to a comprehensive reform does not retreat, must adhere to the strengthening work style building do not slack off,中原工学院课程设计。课程设计说明书 能源与环境 学院 给水排水工程 专业设计题目 某市某给水厂设计 学生姓名： 班 级： 学 号： 起止日期： 指导教师： 系 主 任： 第一章1城市给水处理厂课程设计基础资料11.1工程设计背景11.2设计规模11.3基础资料及处理要求1（1）原水水质1（2）地址条件2（3）气象条件2（4）处理要求3第二章4给水处理厂方案设计42.1资料分析与整理42.1.1水域功能和标准分类42.1.2水质评价与分析42.2水厂地址52.2.152.2.2气象条件52.2.3设计规模62.3工艺流程选择6第三章6净水构筑物的计算63.1配水井63.2混凝设施73.2.1混凝剂类型及加药间73.2.2混合设施143.3反应池/絮凝池173.3.1絮凝形式及选用183.3.2往复式絮凝沉淀池计算203.4沉淀池243.4.1常见沉淀池类型243.4.2设计计算263.4.3排泥方法273.5滤池293.5.1常用的滤池形式293.5.2常用的滤池配水系统343.5.3滤池的设计计算353.6消毒设施的设计413.7清水池42第四章47给水处理厂布置474.1工艺流程布置474.2平面布置474.3厂区道路布置474.4厂区绿化布置484.5厂区管线布置484.6高程布置494.7管渠水力计算494.8给水构筑物高程计算50第五章50自我总结50参考文献52第一章城市给水处理厂课程设计基础资料1.1工程设计背景某市位于河南省近年来，由于经济的发展、城市化进程的加快和城市人民生活水平的提高，用水的需求不断增长，经市政府部门研究并上报请上级主管部门批准，决定新建一座给水处理厂。1.2设计规模该净水厂总设计规模为（10+M）104m3/d（M为学生学号的个位数字）。征地面积约40000m2。1.3基础资料及处理要求（1）原水水质原水水质的主要参数见下表。原水水质资料 序号项目单位数值序号项目单位数值1浑浊度度54.213锰mg/L0.072细菌总数个/mL28014铜mg/L0.013总大肠菌群个/L920015锌mg/L 30m2时，长：宽=2:14:1；4) 当滤池个数少于5个时，宜用单行排列。反之可采用双行排列；5) 一般砂滤料粒径为：最小粒径dmin=0.5mm，最大粒径dmax=1.2mm，不均匀系数K802，滤层厚度不小于700；6) 滤层上面水深一般采用1.52.0m；7) 滤层工作周期一般采用24h，冲洗前的水头损失最大值一般采用2.02.5m；8) 滤池超高一般采用0.3m；3.5.2常用的滤池配水系统配水系统名称常见配水形式通过池内配水系统的水头损失（m）大阻力带有干管(渠)和穿孔支管的“丰”字形配水系统3中阻力(1)滤球式(2)管板式(3)二次配水比砖(4)三角形内孔的二次配水(气)滤砖0.53.0小阻力(1)豆石滤板(2)格栅式(3)平板孔式(4)三角槽孔板式(5)滤头0.5此方案采用大阻力配水系统反冲洗方式反冲洗方式一般有单独用水反冲洗;有表面辅助冲洗的水反冲洗;有空气辅擦洗的水反冲洗以及有表面扫洗和空气辅助擦洗的反冲洗。此设计方案采用单独用水反冲。3.5.3滤池的设计计算1已知条件设计水量滤速 滤池的有效冲洗历时 6min=1/10h2 设计计算（1）冲洗强度 （按经验计算公式计算） 式中 滤料平均粒径，mm； 滤层最大膨胀率，%，采用 ； 水的运动粘滞度，1.14（平均水温为15）.砂滤料的有效直径 与对应的滤料不均匀系数 所以 （2）滤池面积 滤池总面积 滤池个数采用 N=18个，成双排布置单池面积 ，采用51。每池平面尺寸采用池的长宽比为10.2/5=2.04，22.043符合规范。校核强制滤速：（3）单池冲洗流量 （4）冲洗排水槽断面尺寸两槽中心距采用a=2.0m排水槽个数槽长 槽内流速，采用0.6排水槽采用标准半圆形槽底断面形式，其末端断面模数为：槽的断面尺寸，见图4-1 图4-2集水渠与排水槽的平面布置，见图4-2。设置高度滤料层厚度采用排水槽底厚度采用槽顶位于滤层面以上的高度为：核算面积排水槽平面总面积与单个滤池面积之比为：（5）集水渠集水渠采用矩形断面，渠宽采用b=0.75m渠始端水深 集水渠底部低于排水槽底部的高度 （6）配水系统采用大阻力配水系统，其配水干管采用方形断面暗渠结构。配水干渠干渠始端流速采用 干渠始端流量 干渠断面积 采用0.49m2干渠断面采用干渠壁厚采用 干渠顶面应开设孔眼配水支管支管中心距采用 支管总数 支管流量 支管直径采用 ，流速 直管长度 核算 支管孔眼孔眼总面积与滤池面积的比值，采用，则孔径采用 单孔面积 孔眼总数 每一支管孔眼数（分两排交错排列）为：孔眼中心距 孔眼平均流速 由得即（7）冲洗水箱容量 水箱内水深，采用圆形水箱直径 设置高度水箱底至冲洗排水箱的高差 ，由下列几部分组成。. 水箱与滤池间冲洗管道的水头损失管道流量 管径采用 管长 查水力计算表得：；1000i=13.5冲洗管道上的主要配件极其局部阻力系数列于表4-1合计表4-1冲洗管配件及阻力系数. 配水系统水头损失 也可按下述经验公式计算. 承托层水头损失 承托层厚度采取 . 滤料层水头损失 式中 滤料的密度，石英砂为； 水的密度，； 滤料层膨胀前的孔隙率（石英砂为0.41）； 滤料层厚度，m。所以 c.备用水头取（8）管廊内的主干管渠滤站的18个水池成双行对称布置，每侧9个滤池。浑水进水、废水排除及过滤后清水引出均采用暗渠输送，冲洗水进水采用管道。各主干管的计算结果列于表4-2管渠名称流量/(m3/s)流速/(m/s)管渠截面积/m2管渠断面有效尺寸/m浑水进水渠1521.01.52清水进水渠1.521.21.27冲洗进水管0.61