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Babcock双调风旋流煤粉燃烧器调节及低污染燃烧特性分析研究.docx

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Babcock双调风旋流煤粉燃烧器调节及低污染燃烧特性分析研究 【Abstract】 InordertobetterregulatetheBabcockdual-tonewindswirlpulverizedcoalburnerandanalyzeitslow-pollutioncombustioncharacteristics,thispaperconductsacomprehensiveanalysisofthecombustionperformanceoftheburner.TheresultsshowthattheregulationoftheBabcockdual-tonewindswirlpulverizedcoalburnerisrelativelysimpleandeasytooperate.Inthelow-loadcombustionstage,theNOxemissionsoftheburnerarerelativelylow,buttheSOxemissionsarehigher.Inthehigh-loadcombustionstage,theSOxemissionsarerelativelylow,buttheNOxemissionsarehigher.Therefore,itisnecessarytoadjustthecombustionconditionsaccordingtotheloadconditionstoachieveabalancebetweenNOxandSOxemissions. 【Introduction】 Coal-firedpowergenerationisanimportantpillaroftheenergyindustryinChina.However,coal-firedboilersareoneofthemainsourcesofpollution,whichhascausedseriousenvironmentalproblems.Inrecentyears,thestatehasintroducedaseriesofpoliciestopromotecleanandefficientcoal-firedpowergeneration,whichhasdriventhedevelopmentofnewtechnologiesandnewmaterialsforcoal-firedboilers.Amongthem,theBabcockdual-tonewindswirlpulverizedcoalburnerisoneoftheimportanttechnologicalinnovations.Thisburnerhastheadvantagesofhighcombustionefficiency,stablecombustion,andlowpollutionemissions.However,itscombustioncharacteristicsandtheadjustmentofitsparametersneedtobefurtherstudiedtobettermeettheenvironmentalprotectionrequirements. 【ResearchMethods】 TheBabcockdual-tonewindswirlpulverizedcoalburnerwasselectedastheresearchobject,anditsinternalstructureandcombustionprinciplewereanalyzed.ThecombustionprocessoftheburneratdifferentloadswassimulatedbyusingtheFluentsoftwareplatform,andthedistributionoftemperature,velocityandconcentrationinthefurnacewasanalyzed.Thepollutantemissionsoftheburnerweremeasuredbyusingacontinuousemissionmonitoringsystem,andtheemissioncharacteristicsofNOxandSOxunderdifferentloadconditionswereanalyzed. 【ResultsandAnalysis】 1.CombustioncharacteristicsoftheBabcockdual-tonewindswirlpulverizedcoalburner TheBabcockdual-tone