净水厂设计计算书

毕业设计（论文）计算说明书题目A市净水厂工艺设计专业环境工程班级环境121学生王鸣指导教师万甜2016年2012届环境工程专业毕业设计I摘要本设计为A市净水厂工艺设计，随着城市的发展，为了解决供水问题决定在该市东南方向设计一个水厂，设计规模为110000dm/3。厂址地势平坦，服务人口46万人。随着净水厂的建设完成，会极大地缓和城市供水紧缺问题，为后面的发展奠定好的条件。通过工艺的设计来完成所需目标。净水处理工程包含配水厂初步设计以及净水厂的完整设计。城市给水的设计内容包括供水方式的确立及供水二级泵房的设计。净水厂的工艺设计包括净水厂的位置选择、水处理工艺流程的比选及确定、各处理构筑物的设计计算以及水厂的平面布置和根据地形进行高程布置等。根据对所设计方案进行技术经济对照，我们确定了最后的处理工艺方案：原水→管式静态混合器→隔板往复式絮凝池→平流沉淀池→普通快速过滤池→消毒→清水池→二级泵站→城市配水网。通过此工艺方案达到了国家对于生活饮用水的出水规范。关键词：净水处理厂设计、隔板往复式絮凝池、普通快速过滤池、二级泵站王鸣：A市水厂工艺设计IIABSTRACTThedesignforacitywaterpurificationprocessdesign,withthedevelopmentofthecity,inordertosolvetheproblemofwatersupplydecidedtodesignawaterplantinthecity,aSoutheasterlydirection,scaleofthedesignforthe110000.plantislocatedinflat,servingapopulationof46millionpeople.Withthecompletionoftheconstructionofthewaterpurificationplant,greatlyeasecity'swatershortageproblem,layagoodconditionforbehindthedevelopment.Throughthedesignprocesstoaccomplishthedesiredtarget.Netwatertreatmentengineeringincludesthepreliminarydesignoftheplantandthewaterpurificationplantdesign.Thedesigncontentsoftheurbanwatersupplyincludingwatersupplyestablishmentandwatersecondarypumpingstationdesign.TheprocessdesignofwaterpurificationplantincludingwaterpurificationplantlocationChoice,watertreatmentprocessselectionanddetermination,thebuildingdesigncalculationandlayoutoftheplantandaccordingtotheterrainofelevationlayoutetc..Accordingtothedesignschemeforthetechnicalandeconomiccomparison,wedeterminedthefinalprocessscheme:rawwater→staticmixer→Flocculationreactiontank→Advectionsedimentationtank→rapidfilter→Disinfection→Clearwatertank→Twostagepumpstation→Urbanpipenetwork.2012届环境工程专业毕业设计IIIThroughthisprocesshasreachedthenationalstandardfordrinkingwater.KEYWORDS:Waterpurficationplantengineeringdesign,flocculationtank,commonfastfilter,twostagepumpstation.王鸣：A市净水厂工艺设计IV目录第1章设计资料..................................................11.1设计任务..................................................11.2设计原始资料..............................................11.2.1水质资料............................................11.3设计内容..................................................1第2章总体设计..................................................32.1设计水量计算..............................................32.2净水工艺的确定............................................32.3处理构筑物及设备型式选择..................................42.3.1取水泵站的设计......................................42.3.2药剂的选择..........................................52.3.3混合设备............................................52.3.4絮凝处理构筑物的选择................................62.3.5沉淀池..............................................82.3.6滤池................................................82.3.7消毒方法............................................9第3章净水构筑物的设计.........................................103.1混凝剂投配设备的设计.....................................113.1.1溶液池的设计.......................................113.1.2溶解池的设计.......................................113.1.3投药管.............................................123.1.4投加泵的选择.......................................123.1.5加药间及药库的设计.................................133.2混合设备的设计...........................................133.2.1设计管径...........................................143.2.2水头损失...........................................143.3絮凝反应设备的设计.......................................143.3.1隔板絮凝池尺寸.....................................153.3.2廊道宽度设计.......................................153.4沉淀设备的设计...........................................173.4.1平流式沉淀池尺寸...................................173.4.2沉淀池的进水设计...................................183.4.3沉淀池的集水系统设计...............................183.4.4沉淀池排泥.........................................193.5过滤设备的设计...........................................202012届环境工程专业毕业设计V3.5.1滤池尺寸...........................................203.5.2滤池高度...........................................213.5.3配水系统...........................................223.5.4孔眼布置...........................................223.5.5洗砂排水槽.........................................223.5.6滤池各种管渠计算...................................233.6消毒反应设备的设计.......................................243.6.1加氯量计算.........................................243.6.2加氯间和氯库.......................................253.7清水池的设计与计算.......................................253.7.1清水池容积计算.....................................253.7.2清水池的平面尺寸...................................263.7.3管道系统...........................................263.8二级泵站设计.............................................273.8.1设计计算...........................................273.8.2水泵吸水管路.......................................283.8.3水泵压水管路.......................................293.8.4泵房高度...........................................293.8.5附属设备...........................................293.9配水井、吸水井的设计.....................................303.9.1配水井尺寸.........................................303.9.2吸水井尺寸.........................................30第4章水厂总体布置.............................................314.1厂址的选择...............................................314.2水厂平面布置......