SAS法制备超微颗粒实验装置与喷嘴研制

《SAS法制备超微颗粒实验装置与喷嘴研制》由会员上传分享，免费在线阅读，更多相关内容在行业资料-天天文库。

1、分类号密级Y970776单位代码：10422学号：．0▲东岁，莩硕士学位论文ShandongUniversityMaster：sThesis论文题目：’SAs法别者趋铹嘞粒寝驻锄秀嚆形f作者姓名些重丝一专业业至过程扭越豢鬻罐拉》障M妊牛月fp日山东大学硕士学位论文AbstractInthispaper，theresearchingstatusandtechnicalcharacteristicofproducingmicroparticlesusingSupercriticalFluids(SCF)precipitationaresummarizedand

2、analyzed．Asanewcross—techniquereferringtoseveralsubjects，thetheoryandpracticeofproducingmicroparticlesusingSCFprecipitationisnOWbeingresearchedanddeveloppedwithoutusageinlargescaleThecorrespondingequipmentdevelopedinrecentyearscannotsatisfytheexperimentalrequest，andproduceparticle

3、smuchmorethannano—class，besidesitisinconvenienttOoperate．Byseriouslyanalyzingandresearching，wemakemuchcontributiontothedesignofequipmentandnozzles．Severalfollowingaspectsaremainlyincludedinthispaper：1．TheequipmentofproducingmicroparticleusingSCFprecipitationhavebeendesigned，manufa

4、ctured，andputintopracticeThisequipmenthavemoreadvantagesthanothers：thewater-bathusedinheatingsystem，whichcankeepthetemperaturearoundnozzlestable，andintelligentconditionerusedincontrolsystem，whichcontrolthetemperaturewithaccuracy．Andbothofthatensuretheequipmentreachingtherequestoft

5、echnics2Thenozzle，keypartoftheequipment，wasresearchedanddesigned．ThreenewkindsofnozzleshavebeendesignedTwoofwhichareairflownozzleswithloopgapincludinginternal·mixedandexternal—mixedmode，Theoutletofthenozzleisanadjustableloopgap，whichincreaseoperationalquantityofmaterielandisnotrea

6、dytojam．TheexternalmixednozzlehasbeenmanufacturedandputintopracticeBothofthenozzleshavebeenappliedforpatents．Theotherkindofnozzleisswirl-pressurenozzle，whichcanmakethefluidswirlandspraywithhighspeedbytheenergyofitselfafterenteringswirlingchamberfromtangententranceAverygoodresultof

7、sprayingshouldbeexpected．3．Aseriesofexperimentshavebeencarriedouttotestthebeatingsystemandthetemperaturecontrollingsystemoftheequipment．TheresultsshowedthattheheatingsystemcouldkeepthetemperaturearoundnozzlestableandkeepthenozzleworkinginorderThetemperaturecontrollingIh东大学硕士学位论文sy

8、stemcanadjusttemperatureaccording