某回转式焙烧窑节能改造措施的模拟与分析

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1、同济大学机械工程学院硕士学位论文某回转式焙烧窑节能改造措施的模拟与分析姓名：魏晓峰申请学位级别：硕士专业：供热、供燃气、通风及空调工程指导教师：秦朝葵20080301摘要最后总结了改造后某工业炉窑，结合本工业炉窑的具体情况总结了改造情况，并提出进一步完善和发展的建议。关键词：回转焙烧窑，燃烧器，节能改造，数值模拟IIAbstractABSTRACTThestatusofindustrialfumaceindevelopedcountriesandsomeenergy—efficiencytechniqueswasintroducedinthispa

2、perThecurrentsituationofindustrial’fumacesandtheirefficiencieswerecompared．Somerelatedenergyproblemswerediscussed．Thenthetechnicalproblemsforacalciningkilnwereputforwardastheresearchtargetforthispaper．Inordertoimproveitsefficiency,energy-savingretrofitplanwasproposed，namely,th

3、ewasteheatrecoveryoffluegas，theretrofitofburners；theenhancedheattransferwithinkiln．Inregardtothewasteheatrecovery,accordingtothesituationofthefurnacethepaperdesignsaheatexchangerwhichpreheatstheairwiththewasteheatoffluegas，enhancesthetheoreticalflametemperatureoftheburnerandat

4、lastimprovestheefficiencyofheattransferofthefurnace．ThepaperalsocalculatedtheoperationalparametersoftheheatexchangerIntheaspectoftheburnerretrofit，duetotheunevenmixingofthefuelandairwhichleadstothelongflame，thepaperputforwardfourplansoftheburnerretrofitwhichmainlychangetheunev

5、enmixing．Throughthesimulationofthefourretrofitplansoftheburnerwecangeteachplan’Stheeffectivenessofcombustion，andaftertheanalysisandevaluationofeachplan’Ssimulationresultsweobtainedthebestretrofitplan．Thecombustionofpreheatedburnerissimulatedandcomparedwiththenopreheatedone．Int

6、heaspectofthefumaceheattransfer,thefumace’sheattransferunderdifferentconditionsiSstudied：1．Comparetheheattransferofpreheatedfurnacewithnopreheatedone；2．Therotationspeedofcylinderaffecttheheattransferoffumace；3．Differentproductionsaffectthefumace．Throughthesimulationanalysisoff

7、umaceunderthreedifferentconditionsthecombustioneffectoftheseconditionscanbeobtainedandthemaximumproductioncanbegot．ThetemperaturefieldsandvelocityfieldsunderdifferentconditionsareanalyzedtomakesurethatthecombustioniSsecure，stableandeffective．1IIAbstractNumeralsimulationasaimpo

8、rtantandeffectivetoolisemployedinthispaperandthismethodcansim