西江永丰县城给水工程扩大初步设计计算说明--毕业设计.doc

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1、摘要江西永丰县城给水工程扩大初步设计摘要本设计题目为：江西永丰县城给水工程扩大初步设计，设计规模为：近期50000，远期60000，进水水质符合国家规定的饮用水源水质标准要求。根据所给资料进行给水工艺设计和单体构筑物设计计算，包括取水输水构筑物设计、输配水管网设计、净水厂设计、工程概算和制水成本计算。净水厂采用工艺流程为：源水→一泵站→混凝剂投入管式混合→折板絮凝池→平流沉淀池→V型滤池→清水池→二级泵房→城市给水管网。选用聚合氯化铝为混凝剂，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

2、》（GB5749—2006）。此净水厂的建筑工程总造价为83122074元，年经营费用为10209474元，单位制水成本为0.79元/m。关键词：永丰县；给水工程；净水厂；一级泵站；折板絮凝池；平流沉淀池；V型滤池；清水池；二级泵站；城市管网I摘要ThepreliminarydesignoftheexpansionofJiangxiCountyofYongfengwatersupplyprojectAbstractThemaintaskofthisdesignisinyongfengCountyi

3、nJiangxiProvince,thepreliminarydesignofthecountywatersupplyproject.Thekeyelementsofdesign:designtodeterminethesize,watersupplysystems,watersupplyschemes,waterengineering,watertreatmentplantdesign,thesecondarypumpingstationdesignandlosers.Waterdistribu

4、tionnetworkwiththecalculationandadjustment.Designspecificationanddesignofthebookiscomposedoftwopartscalculation.ThetopicofthisdesignisthepreliminarydesignoftheexpansionofJiangxi:YongfengCountywatersupplyengineering,designsize:therecent50000,forward600

5、00,thewaterqualitytomeettherequirementsofdrinkingwatersourcewaterqualitystandardsprescribedbythestate.Accordingtothedataofdesigncalculationofwatersupplyprocessdesignandsinglebuilding,includingwaterconveyancestructuredesign,deliveryanddistributionpipen

6、etworkdesign,waterpurificationplantdesign,projectbudgetandwatercostcalculation.Netwaterusingprocess:water→onepumpingstations→coagulantintotubularmixing→foldedplateflocculator→horizontalflowsedimentationtankV→typefilter→cleanwaterpond→twopumpingstation

7、→citywatersupplynetwork.Polyaluminumchlorideasacoagulant,liquidchlorineasdisinfectant.Waterqualitymeetstherequirementof"thesanitarystandardfordrinkingwater"(GB5749-2006).Keywords：YongfengCounty;watersupplyengineering;waterworks;onepumpingstation;folde

8、dplateflocculator;horizontalflowsedimentationtank;Vfilter;clear;twostagepumpingstation;citypipenetwork.I目录目录第一篇设计说明书1第1章工程概述11.1城市概述11.2设计内容6第2章设计水量72.1用水量计算72.2最高日用水量变化82.3水塔和清水池9第3章管网水力计算123.1管网定线123.2管网水力计算15第4章给水管网校核164.1消防校核164.2事故校核16第5章