中性束注入裝置真空壓力分布研究及結(jié)構(gòu)設(shè)計.pdf

1、合肥工業(yè)大學(xué)碩士學(xué)位論文中性束注入裝置真空壓力分布研究及結(jié)構(gòu)設(shè)計姓名：張建國申請學(xué)位級別：碩士專業(yè)：流體機(jī)械及工程指導(dǎo)教師：陳長琦胡純棟20090401PressureDistributionAnalysisandStructuralDesignforNeutralBeamInjectorAbstractNeutralBeamInjiector(NBI)isadevicewhichproduceshi曲energyionbeam，neu

2、tralizesittohighenergyneutralbeamfortokamakplasmaheatingNBIheatingisofthehighestheatingefficiencyandoftheclearstphysitsmechanismofTokamakheatingmethodexceptohmicheatingNBIpressuredistributionisoneofthekeyfactorswhichaffe

3、cttheneutralbeamtransmissione岱ciencyespeciallythereionizationlOSSofneutralbeamtransmissionTheresearchofreionizationlossisinaccordwiththeresultofNBIpressuredistributionanalysisInthisarticle，theExperimentalAdvancedSupercon

4、ductingTokamak(EAST)NBIoperatingprinciplesandstructuralfeatureswereanalyzed。功egeometricandphysicalmodelofEASTNBIWasbuiltandthemathematicalmodelofmolecularmovementandcollisioninthemainvacuumchamberofEASTNBIWasalsoestablis

5、hedbasedonM—CmethodProgramwasdesignedwiththeMatlabsoftwareandWasimplementedthesimulatingcalculationofthepressuredistributionnlethreedimensionalschematicofmoleculardistributionandthecurvesofaveragepressureforthreeareasoft

6、hemainvacuumchamberweregainedTheresultWasverifledbytheexperimentaldatumofDIIIDNBIwhichindicatedthat：1theresultofsimulatingcalculationWasreliableandeffective；2whenthepositionofgasbaffleinthefirstsectionofmainvacuumchamber

7、reached300mmandthepositionoffrontcryopanelinthethirdsectionWas250mm，whichcouldmaintainthesuitablegradientofpressuredistributionthroughthegasintakingprocessThestructuresofneutralizerdeflectingsystemandcryopumpingsystemwer