四角切向燃烧锅炉炉内气流流动特性及炉膛高度的选取

:1999-10-20;:2000-01-10:(95JB1101):(1972-),,,.:1001-2060(2001)01-0046-041,2,2,2,1(1.,200240;2.,710049):HG-2008/18.2-YM2,,,,:;;;:TK224:A1,,(),,,,,,CE1824m,,[1],2600MWHG2008/1812-YM211:25,1,A1A5,B1B5,C13C4C6C7C9C10C121050A,(Re=415104),33.1,16(91)20011©1995-2005TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.,P,[2]P=(QWR)=[n1i=1(V2iSHLi)+n2j=1(V2jSHLj)]/2(1):,kg/m3;Vi,m/s;n1;Vj,m/s;n2;Li,m;Lj,m;S,m;H,m22,:(1),,(A3)P,,,,(2)(A5B5),,:(A5B2),,53%,70%;(B2B5),233,=u2…V100,%(2)u2,m/s;…V,m/s3,B1,,,B2B5,(B2),,,,(3),B3B4B5,€2413%2713%2914%,,,,,(4),1913%(5)PH,A3B5P7411©1995-2005TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.…P=0.929e-1.803€x+0.071(3)€xA3,…P(A3)11H1.05H1.10H1.15H1.20H€x1.251.431.621.791.980.1690.1410.1210.1080.0971,(3),1214%,1110H,,,H11051110,300600MW35m[3](3)[4]…C=CC0=e-vtk2u0x(4)(4)…CCC0,vt,uo,k2,k2=2(a2+b2)a2b2,ab,,,:(1)C0(2),(3),3.2413,1,29%,32,,429%,ŠM=Vmax/Vm11931168,,,,,[5]300MW,(),36m,84%70%,,,,,,32,ŠM11931148,,,,[6],,(42)842001©1995-2005TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.,4.1.4,,,,,,,0148mm,,4.21212,,,1254.32,,34,2,1,1,,22530m5,,,,85m,,25m,,,:[1],,.[M].:,1996.[2].[M].:,1998.[3].[M].:,1991.[4],.300MW[J].,1998,18(3):179-183.()(48)4(1),,:(53%),,70%;,(2),(3),H11051110:[1].[A].[C].:,1996.65-68.[2]XUTong2mo,HUIShi2en,GUOHong2sheng,etal.Thedevelopingtendencyandcountermeasureofthecombustioninfurnaceoflargepul2verized2coalboilers[C].TheProceedingofICOPE,ShanghaiChina,1995.305-308.[3],,.300MW600MW[R].:,1998.[4],.[J].,1985,(2):21-27.[5].[J].,1999,(5):1-3.[6],,.[J].,1999,19(3):7-10.()242001©1995-2005TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.(EnergySourceCollegeundertheHarbinInstituteofTechnology,Harbin,China,PostCode:150001)//JournalofEn2gineeringforThermalEnergy&Power.-2001,16(1).-3338Spectraldataofwatervapormoleculeshavebeenwidelyusedinthefieldsofaerospacescience,atmosphericscience,as2trophysics,thermalenergyandpowerengineering.Onthebasisofthenewesthigh2resolutionhigh2temperaturegasspec2traldatabaseHITEMPandbywayofarationalextrapolationobtainedwerethewatervaporspectralband2modelparame2tersinthe30023000Ktemperaturerange.Thelatterincludeanaverageabsorptionfactor,spectrallinedensity,spec2trallinehalf2width.Asaresult,setupwasamoreup2to2dateanddetailedmodelparametertablethanthatpromulgatedbyNASAin1973.Withthemodelparametertableservingasabasistheauthorshavethroughtheuseofastatisticalspectralbandmodelcalculatedemissionspectraundervariousopticalpaths,whichhavebeenfoundtobeinverygooda2greementwithexperimentalvalues.Keywords:infraredradiation,watervapor,spectralbandmodelparameterN300MW=AnAnalysisoftheCausesofClimbingVibrationsandLow2frequencyOnesinaN300MWUnitandSomeMeasuresTakenforTheirElimination[,]/LiLu2ping,ZhouKe(ChangshaUniversityofElectricPowerEngineering,Changsha,China,PostCode:410077),ZhangGuo2zhong,HuangPi2wei(HunanProvincialElectricPowerResearchInstitute,Changsha,China,PostCode:410070),HuYou2ping,GanFu2quan(XiangtanElectricPowerCo.Ltd.,Xiangtan,Hunan,China,PostCode:411100)//JournalofEngineeringforThermalEnergy&Power.-2001,16(1).-3942Onthebasisofnumeroustestdataobtainedon2sitetheauthorsexpoundsthecharacteristicfeaturesofclimbingandlow2frequencyvibrationsinaChinese2made300MWturbogeneratorsetandthecausesoftheiremergence.Sometechnicalmeasureshavebeenrecommendedfortheirelimination.Theon2sitetestresultsobtainedaftertheimplementationofthesetechnicalmeasuresindicatethatthemeasuresadoptedhavebeenveryeffectiveineliminatingtheabove2mentionedvibra2tions.Keywords:turbogeneratorset,vibration,faultdiagnosis(PC-FB)=TheEffectofOperationParametersontheCombustionEfficiencyofaPulverized2coalFluidizedBed[,]/ChenHong2wei(NorthChinaNationalElectricPowerUniver2sity,Baoding,Hebei,China,PostCode:071003),JinBao2sheng,XuYi2qian(SoutheasternUniversity,Nanjing,China,PostCode:210096)//JournalofEngineeringforThermalEnergy&Power.-2001,16(1).-4245Withthehelpofapulverized2coalfluidizedbed(PC2FB)testrigwith0.3MWheatinputtestdatawereobtainedofthePC2FBcombustionefficiencyundervariousoperationparameters.AdetaileddiscussionandstudywasconductedfocusingonthemechanismofinfluenceoftheseoperationparametersonPC2FBcombustionefficiency.ThestudyresultsindicatethatthecombustionefficiencyofthePC2FBcanbeashighas98%299%,comparablewiththatofapulverized2coalfurnace.Theauthorsalsopointedoutforthefirsttimeinthepresentstudythatunderacertainsetofconditionsitispos2sibletorealizealow2temperaturehigh2efficiencycombustionofthepulverized2coal.Theseconditionsinclude,amongoth2ers,arationalmatchingofthefollowingitems:combustiontemperature,particleresidencetime,flameturbulenceandin2furnaceoxygenconcentrationandparticleconcentration.Keywords:fluidizedbed,pulverizedcoal,combustioneffi2ciency,operatingparameters=In2furnaceFlue2gasFlowCharacteristicsandSelec2tionofFurnaceHeightforaTangentiallyFiredBoiler[,]/ZhouYue2gui,ZhangMing2chuan(EnergySourceDepartment,ShanghaiJiaotongUniversity,Shanghai,China,PostCode:200030,AiWei2guo,XuTong2mo,HuiShien(EnergySourceDepartment,XianJiaotongUniversity,Xian,China,PostCode:710049)//JournalofEngineeringf