循環(huán)流化床脫硫器氣固流動特性實驗研究與模擬計算

1、伊窬≈⑧天洋大罄碩士學位論文學科專業(yè)：化工i寸稗相械作者姓名：趙凱指導教師：胡金椿教播天津大學研究生院2006年1月AbstractThegassolidflowcharacteristicinthecirculatingfluidizedbed(CFB)riseristhekeyoftheCFBfluegasdesulfurizationtechnologySOitisveryimportantofexactexperimentalt

2、estingandsettingageneralmathematicalmodelProfoundstudyingthedistributionandaxialdevelopmentoflocalparticleconcentrationinriseritisvaluableforunderstandinggassolidmixtureintherisertheregularityofheatandmasstransferproving

3、thecorrespondingmathematicalmodel，andresearchandoptimizationoftheCFBfluegasdesulfurizationintheacademicandindustrialunitChangingtheinletductandchoosingthecirculatingfeedinlets，thatistheexperimentalstudyontheradialprofile

4、ofthelocalsolidconcentrationintheriseratthesideinletductandtheswanneckbyusingallopticalfiberprobe，andnumericalsimulationanalysisofthegas—solidflowfielddistributionintheriseritistostudytheregularityofthelocalparticleconce

5、ntrationdistributioninthespecifcinletductventutidistributorandthepositionofthecirculatingfeedinletBasedonexperimentalresults，boththedifferenceoftheinlet—ductandpositionofcirculatingfeedinlethaveagreatimpactonthelocalpart

6、icledistribution，thereisabettergassolidflowbytheswanneckthansideinletduct，thatisoptimizationAtthesametime，thetwofluidmodelcombinedwiththekinetictheoryapproachfortheparticlephaseandtheequationwerebuilt，theresultsofnumeric

7、alsimulationshowthattherevisedmodelCanbetterdescribethegassolidflowphenomenoninthereactorTheindustrialunitWasdesignedandtheproposedgassolidflowmodelWasappliedtopredicttheflowfieldItprovidesafoundationforthedesignofanengi