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ID:332075
大小:2.67 MB
页数:83页
时间:2017-07-24
《某区净水厂设计 毕业设计计算说明书》由会员上传分享,免费在线阅读,更多相关内容在学术论文-天天文库。
1、摘要本设计的题目是某区净水厂设计。设计的主要内容包括:给水方案比较、取水工程设计、净水厂设计和二级泵房设计。设计书由设计资料、设计说明书和设计计算书三部分组成。本设计的设计规模是18万m3/d,以该市南面的河流为水源。采用常规处理,其工艺流程为:源水→河床式取水构筑物(一泵房)→管式静态混合器→折板絮凝池→斜管沉淀池→V型滤池→清水池→二泵→城市管网。选用三氯化铁为混凝剂,液氯为消毒剂。出水水质要满足生活饮用水卫生标准(GB5749-2006)。一泵房近期设3台800s48型水泵两用一备。远期增加2台,三用两备。折板絮凝池共设四座,
2、每两座一组。斜管沉淀池共设两座。与折板絮凝池合建。V型滤池共设2组,每组设5座。(每座为双格滤池)清水池共设两座。关键词:净水厂,常规处理,斜管沉淀池,V型滤池,VIAbstractThetopicofmydesignisthewaterpurificationplantinsomecityofcentrallanzhou.Thedesignmainlyincludes:thecomparisonfortheprocessofwatersupply;thedesignofwatersourceengineering;thedesig
3、nofthewaterplantandthesecondarypumpingstation.Thedesignfileconsistsofthreepartswhicharedesigndata,explanationfileandcalculationfile.Thevolumeoftherequireddailywatersupplyofmydesignis180000m3/hd.Teriverinthesouthofnhecityisthesourceofthewatersupply.Thesystemofthewaterpl
4、antadoptsconventionaltreatment,thetechnologyprogressisasfollowing:rawwater→riverbedintakestructure(firstpumpingstation)→mixing→gridflocculatingtank→tubesettler→vfilter→clear-waterbasin→secondarypumpingstation→waternetwork.FeCl3isusedascoagulantwhileCl2isusedasdisinfect
5、ant.Thequalityofprocessingwatermustsatisfythenormofdomesticdrinkingwater(GB5749-2006).Firstpumpingstationrecentlysetofthree800s48-typepumps,twoudeandonespace.Twolong-termincreasetwosamepumps,withthreeinuse.Gridflocculationtankconsistsoftengroups,eachoftwoHorizontalsedi
6、mentationtanksconsistsoftwosetswhicharebuilttogetherwithFlocculationtank.V-filterconsistsoftengroups,eachofthefivesets.(Eachforthefilter)Clear-waterreservoirwerearebuilttwosets.Keywords:waterpurificationplant,conventionaltreatment,tubesedimentationtank,vfilter.VI目录1绪论V
7、I1.1设计水质分析VI1.1.1设计水质VI1.1.2水质分析71.2设计水量72设计说明书82.1水厂厂址选择82.2工艺流程的选择82.3取水构造物92.3.1取水构筑物形式的选择92.3.2集水间102.3.3取水泵房102.4配水井112.5加药间112.5.1混凝剂药剂的选用112.5.2投加方式的选择122.5.3药剂溶解池122.5.4溶液池132.5.5加药间132.6混合设备132.7絮凝池142.7.1絮凝池类型的选择142.7.2絮凝池尺寸152.8沉淀池152.8.1沉淀池类型的选择152.8.2尺寸162
8、.9滤池162.9.1滤池类型的选择162.9.2尺寸172.10消毒间172.10.1消毒方式选择182.10.2加氯量182.10.3加氯设备182.10.4加氯间的布置192.11清水池192.12吸水井192.13二级泵房20
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