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ID:37349708
大小:4.00 MB
页数:120页
时间:2019-05-22
《湿法烟气脱硫塔雾化特性研究及数值模拟》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、东南大学博士学位论文湿法烟气脱硫塔雾化特性研究及数值模拟姓名:李兆东申请学位级别:博士专业:环境工程指导教师:王世和;王小明20070501摘要StudiesontheSprayCharacteristicsandNumericalSimulationofWetFlueGasDesulfurizationTowerAbstractThelimestone/lime-gypsmwetfluegasdesulfurizationprocessisthepreferredoneofWFGDprocessesintheworldan
2、dthekeytmitofitisdesulfutizatinnabsorptiontower.ThespraytowerhasbeenobtaininginternationaliII扯肿落bandapplicationsduetoi乜excellentclogging-againstperformance,lowresistance,highdesulfurizationefficiencyandutilizationofdesulfia'iz目,andhi曲runningstability.Theatomization
3、syslemisthemostimportanttechniqueinspraytower,whichinfluantUansfonnationoftheforeigntechniqueandrestrainttt-search-developmentofindependenceintellectualpropertyfiglItstechnique.Thewholetoweratomizationcharacteristicsofspraytowerwhichwidelyusedinwetfluegasdeanlfuriz
4、ationprocess,startedwithatomizationnoitllozzle。wcl'einvestigatedinthispaper,madthentheatomizationmechanismofspraytowerwasindicated.The砸。髓匝z嘶∞systemofspraytowerWaSfullystudied.andatheoreticguideforoptimizationdesignofspraytoWerWaSprovided.ThisstudyWaSconductedtoanal
5、yzethevolumeflowrate,atomizationparticlediameter,lffDmiz蚯onangleand越omi盈m彻particlediameterdistributionofatomization山lit.——mo翻esincludedhollowconeswirlig)zT.JesusedwidelyandspiralIIOZZlesusedins∞cfields.togetherwiththes呻∞atomizationcham:矧sti∞oflargeaperturedesulfuri
6、zafionnozzles.Theparameterssuchasvohaneflow,spraythickness,averageSaut日particlediameterandparticlediametertel越ivedispersionwe佗defmed.Therulesofcommonatomizationchara吲stiCSandspaceatomizationcharacteristicsofnozzlesweredefined.Thecomparisonofatomizationch∞dg/(eristi
7、CSbetweenhollowconeswirlnozzlesandspiralno动asshowedtheSWillnozzleWaSoptimumtypeinwetfluegasdasulfurizalonp㈣J2$Sandalsoprovidedreferencefurnozzlesp砒Icmselectioninwetfluegasdasulfurizationprocess.ThestudyOnspraytoWeratomizationcharacteristicsWerCconductedwithinvestig
8、ationofemptytower,singlelayertoweranddoublelayerstowerspraycharacteristics.ThroughanalysisofsecU∞prcssul№distributionsofatomizationsystemintowera
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