蓄热式加热炉流场的数值模拟

252Vol.25No.220034JournalofUniversityofScienceandTechnologyBeijingApr.20032002–07–10,24,(No.50144005)HTAC2080,NOx2090HTAC1995800[1~3]20HTACNOx[4]50NOx[5]:/NOx6,11.112000mm×12600mm×3800mm11.2k.k,:pt+p=0,pt+×=p'[phone]),100083CFXk;;;TF062;TG307•136•20032+.,;=+,;k=Ck2kkt+k[+kk]=+,t+[+kk]=C1k+C3max,0C22k.=+23+k,=++,,[7]22.1CFXBUILD2.2INLET1,INLET2,,INLET28.OUTLET.2.360mm100mm200mm400002.4(1)./(2×)0.0370.3(2).,Sturgess[7],,(a).,30m/s(b).(c).(3).0.329kg/m34.43×1051000(4).4000833.12XYXZYZ28Y2(a)1Fig.1Injectornozzles'distributionoftheregeneratorre-heatingfurnaceXZVol.25•137•Z3.2.3XYYZ3Z4(1)(a)(XY)(b)(XY)(XZ)(d)(XZ)(e)(YZ)(f)(YZ)2Fig.2Velocityfieldsfortheregeneratorreheatingfurnace(c)2m(a)(YZ)(b)(YZ)(d)(XY)3Fig.3Velocityfieldsforthenewregeneratorreheatingfurnace(c)(XY)•138•20032(2)(3)1HasegawT,TanakaR,NiiokaT.Hightemperatureaircombustioncontributingtoenergysavingandpollutantreductioninindustrialfurnace[A].ProceedingofHighTemperatureAirCombustionSymposium[C].Beijing,1999.1022TanakaR.HighTemperatureAirCombustion-AdvancedStrategicTechnologyOriginatedinJapan,TechnicalNote900420[R].Japan,19963YasudaT.DisseminationProjectofhighperformancein-dustrialfurnacewithusinghightemperatureaircombus-tiontechnology[A].InternationalSymposiumonHighAirCombustionandGasification[C].19994.[A].[C].,1999.1165,.[J].,2002,24(2):16.[A].[C].,1999.1017ATECFX4.3[M].20008.[M].1991NumericalSimulationontheFlowfieldofaRegenerateReheatingFurnaceYANGXiang1),CHENGSusen1),GUOHanjie2),WUGuangliang2),LIShiqi2),ZHURong2)1)MetallurgySchool,UniversityofScienceandTechnologyBeijing,Beijing100083,China2)BeijingKedaGuotaiEnergy&EnvironmentalProtectionCompany,Beijing100083,ChinaABSTRACTAmathematicalmodelofthevelocityfieldforaregeneratereheatingfurnacewasestablishedwiththecommercialsoftwareCFX.Usingthekturbulentmodel,theinfluenceofnozzles'shape,sizeanddistributiononthevelocityfieldwasstudied.Theresultsshowthattheflowpatterninthefurnaceisgreatlydifferentfromthatofatraditionalfurnaceandisadvantageoustothemixingoffuelandair.Theshapeofthefurnaceandespeciallythesizeandthesiteofnozzlesinfluencetheflowpatterntosomeextent.KEYWORDSregeneratereheatingfurnace;turbulentmodel;numericalsimulation;flowfield