低氮氧化物燃烧技术的发展状况

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©1994-2010ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(710032)[],NOx,NOx()NOx[]NOx,507080,NOx,NOx90,NOx,1NOxNOx:,,NOx,NOxN2,NOx(SCR)(SNCR),80SCRSNCR,NOx200mg/m3(,O2=60%,NO2),NOx(),,NOx,2NOxNOx,2.1NOx,,,NOx2.1.1NOx,NOx,1NOx,NOx,,,CO22000(2)©1994-2010ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(2)2NOx2.1.3,;,,11,1,,,,,NOxNOx,,NOxNOx,,,NOx2.1.4,,,NOx,3,,,,NOx,80%NOx,3NOx,,,2.1.5,,,,,2.2NOx,(),NOxABB-CE(CFSCFS)NOx(LNCFS)TFS2000;B&W(DRBDRB-XCL);SteinmullerBabock2.2.1NOx2000(2)3©1994-2010ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(OFAOverfireair),,NOx,:,,NOx,,,20%,,2.2.2NOx,,NOxNOx,,4()(),,,COCmHn,NOx4LNB(),,,,NOx2.3NOx,NH3CmHnHCN,,NOxN2/NOx2.3.1/NOx(),NOxSteimllerMSM,(5)5LNB/,NOx,,(),NOxNH3HCNCON2,:(1);(2)();(3);(4)NOx,42000(2)©1994-2010ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(IFNR)MACT,(6)6,,3,,,,,(1200)NH3HCNCmHnNOx,N2,,6,SCR,,NOx80%,3NOxABB-CE,,,,,,,NOxNOx,ABB-CE70,(TheCon2centricFiringSystem)NOx(TheLowNOxConcentricFiringSystem)NOx()90,,LNCFS,TFS20003.1NOx,350MW,7,32%,22MJ/kg,NOx700mg/m3,,,NOx7CE3.280,,,CFS(8);CFS(9)CFSNOx,,,,NOx2000(2)5©1994-2010ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(10)10NOx3.4.1NOx(LNCFSLevel),,,,3.4.2NOx(LNCFSLevel),(SOFA),3.4.3NOx(LNCFSLevel)LNCFSLevel(SOFA)3,:750mg/m3,480mg/m3,37%;418mg/m3,45%,ABB-CE,TFS2000,3.5TFS200011240MWTFS200062000(2)©1994-2010ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(12)123.5.1.2,NOx,,3.5.1.3(CCOFA),NOx(LSOFA,HSOFA)3.5.2TFS2000,,1313,NOx,NOx3.5.3(Var=33.50%,Aar=9.50%,Mar=7.00%,Qgr,ar=28.7MJ/kg)240MW,,NOx240mg/m34NOx:,,,,,,,NOxNOx,2000(2)7©1994-2010ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(DRB)14B&WDRB14B&WDRB,,,,,,DRB,,,,B&W,DRBNOx50%60%B&W,615mg/m3,738mg/m34.2B&WNOxB&WNOx1985,:,NOx,(15)15B&WDRB-XCL4.2.1(1),,(2),4.2.2S,,,,DRB-XCL,NOx50%70%,500mg/m351989,Babcock82000(2)©1994-2010ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.()NOx()(SCR)5.1500MW,1584t/h,:Aar35%,Vdaf20%38%,Mar100%,(HGI)5080,Qnet.ar17.6MJ/kg21.1MJ/kg,,5.2(1)NOx(16)3,4,,3,1.5m,NOx3.5m,,75%,123456716MSM20%35%R90=10%85t/hR90=5%17RKD500/700(2),,(17)5.3,,,,NOx425mg/m3,,,NOx2000(2)9©1994-2010ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(2)Basedonabundantreferencesathomeandabroad,thispaperbrieflyreviewsthehistoricaldevelopmentoflow-NOxcombustiontechnologies.Manyadvancedlow-NOxcombustionsystems(burners)intheworld,particularlythatforatypicalutilityboiler,areintroducedaswell.ON-LINEOPTIMIZINGMANAGEMENTSYSTEMUSEDFORFOSSIL-FIREDPOWERPLANTSBiZhengyi(10)On-lineoptimizingmanagementsystemisoneoftheadvancedmanagementsystemsforimprovingoperationefficiencyofthefossil-firedpowerplants.Introducedinthispaperisacomparisonofdifferentdevelopmentsathomeandabroad,fromwhichtwopointshavebeenfound:oneisthattherealtimecontrolvaluesforenergyconsumption(differentialenergycost)reductionprovidedtoplantoperatorarethedynamicvaluesgotfromsimulationinabroad,whilethoseathomearenon-realtimevaluesobtainedfromtestingforreference;theotheroneisthatitisquitenecessarytostudyontheeconomicperformanceofsootblowersforimprovingandoptimizingtheon-lineman2agementsystem.SUPERVISIONANDMANGEMENTOFPOWERGENARATIONCOAL,ANDTHEIRPROBLESANDOUTLOOKLiXiaojianZhuXiaoping(13)Therearemanyproblemsinmanagementandsupervisionofpowergenerationcoal.Onlythestrengtheningofinvestmentinscienceandtechnologiescanassurethepowergeneratingenterpriesesofreducingthepowerproductioncostandincreasingtheircompetitiveness.INVESTIGATIONONFRICTIONALRESISTANCEININTERNALLYRIBBEDTUBESOFA600MWSUPERCRITICALPRESSUREBOILERZhentJianxue(15)Presentedinthispaperisastudyonthecharacteristicsoffrictionalresistanceintheinternallyribbedtubeslocatedinthesupercriticalpressureregionofwaterwallinadomesticonce-throughboilerof600MW.Thetestsectionofthefour-headsinternallyribbedtubewithadiameterofd285.41mmwasmadeof12CrMoV.Theex2perimentalparametersarepressurep=2327,massvelocityG=6001800kg/(m2.s),enthalpyofworkingmediumh=6002600kJ/kg,RenoldnumberRe=5.01041.0106.Thefrictionalresistancecoefficientoftheinternallyribbedtubeandthelawofitschangeswithpressure,massvelocity,enthalpyofworkingmediumandRenoldnumberwereobtainedinthetest.Andbasedonthetestdata,aempiricalequationwasderivedtocalculatethefrictionalresistancecoefficientofinternallyribbedtubeinthesupercriticalpressureregion..TOANALYZEANDSOLVETHESTALLPROBLEMSOFTHEINDUCEDDRAFTFANSINMAWANPOWERPLANT300MWTURBO-GENERATORUNITSSunQiyunTiaoXianfeng(19)AnalyzedthoroughlyinthispaperistheinduceddraftfanstallinMawanPowerPlant.Analysismade

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