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:2004-04-05;:2004-10-27:(1973-),,,.:1001-2060(2005)01-0085-04,,,(,150001):,,,,,pH;pHSIV,:;;;:TK224:A1[1]30,,,,,,,,,[2],,,,,,pH,pH,pHSO2,,,,,;,,,SO2,pH,,,CaCO3CaSO3,;,pH,,pH,22.12.1.1,,1SO2,,,,,,,,,,20120051JOURNALOFENGINEERINGFORTHERMALENERGYANDPOWERVol.20,No.1Jan.,20051,,,,SO2H+,pH2.1.2(1),1mm,120mm,(2)2000mm112mm96mm372mm20mm2000mm,141m2/m3(3)1.3m0.65m0.65m,0.65m0.65m0.65m,,,,,,,(4)6,41mm,,,2.2(1)(),,10%,(300g/m3);,;,;(2)(1),SO2SO2,SO2SO2,SO2;SO2,pH;SO2,pH,pHpH,5.81%,,pH;SO2,20min,Ca2+SIVCaCO3;Ca2+SIVCa2CO3,(3),SO2CO2,pH,;;,Ca2+SIV,6820052.3SO2CO2300M;Ca2+EDTA;SIV,;33.1pH6m/s,8L/m3,0.47cm/s,6min,300r/min,25,SO22618mg/m3,pH,,22pH,pH,,pH4.56.5,48.0%56.1%,8.1;0.15g/L1.42g/L,8.5pH,pH,SO2,SO2,SO2pH,H2SO3HSO3-,SO2,pH,SO2,pH,pHCa2+CO32-,CO32-,pH,CO32-,,,pH,,,3.2,3min,3.1,pH,pH3.2.133,pHpH,pH3pH3,pH,pH6.50,0.41g/L1.42g/L,71.1%,3,pH,pH6.50,0.71g/L1.42g/LpH,781,:,4,pHpHpH,,4pHpHpH,:,,,;pH,3.2.2pH,55,pH,,pHpH6.5,1.14,pH6.50,pH5.50,pH5.50,4.8,pH,,pHpHSO2SO2,,,,SIV,SIV,SIV5pH4(1),pH,,,(2),,,pHpH,,pH,,(3),,,,,pH,,:[1],.[J].,2003,10(5):32-34.[2].[M].:,2001.[3].[P].:ZL01221686.0,2002-02-13.[4],,,.[J]..2003,35(6):715-718.[5]KIILS,MICHELSENML,DAM2JOHANSENK.Experimentalinves2tigationandmodelingofawetfluegasdesulfurization[J].IndEngChemRes,1998,37:2792-2806.882005ingconditionstheimpactoftheflowrateandtemperatureofsteaminjectedintoaturbochargerturbineontheperformanceoftheturbochargerandturbo2chargeddieselwasidentifiedalongwithananalysisoftheresults.Theeffectivenessofthesteam2injectedturbo2chargeddieselinimprovingitspartloadperformancehasbeenverified.Keywords:turbo2chargeddiesel,steam2injectedturbochargerN-11220-1=ARenewedAnalysisoftheThermodynamicCharacteristicsandMeasuresTakenattheRetrofittingofaN21122021Condenser[,]/WANGGuo2shan,MAOXing2qing(CollegeofMechanicalandPowerEngineeringundertheJiaotongUniversity,Shanghai,China,PostCode:200030)//JournalofEngineeringforThermalEnergy&Power.-2005,20(1).-8084Byusingthelatesteditionofself2developedsoftwarePPOC3.0designedforthenumericalsimulationofcondensersare2newednumericalcalculationandanalysiswasconductedofthethermodynamiccharacteristicsofapower2plantChinese2madecondenser(ModelN21122021)atitsdesignedoperatingcondition.Numerousnumericalsimulationtestsaimedataddressingtheproblemofarelativelygreatsteamflowresistanceinthistypeofcondenserindicatethattherelativelygreatsteamflowresistanceatthecondensershell2sidewasmainlycausedbyairrationallayoutofthesteampassageofthecon2denser.Furthernumericalcalculationsandanalyseshaveshownthatforsuchcondensersalreadyputintooperationthereexisttwomethodsofretrofittingtoimprovetheiroperatingperformance.Theyareeitheranincreaseinsteampassagedi2mensionsaroundthecondensertubebundlesorareplacementoftheoldtubebundlesbynewandmoreadvancedones.Keywords:powerplantcondenser,thermodynamiccharacteristics,numericalanalysis,retrofitting=AnImprovementontheCirculationOxidationTankofanAbsorp2tionTowerforWetFlue2gasDesulfurization[,]/DUQian,WUShao2hua,LIUHui,etal(CollegeofEnergyScience&EngineeringundertheHarbinInstituteofTechnology,Harbin,China,PostCode:150001)//JournalofEn2gineeringforThermalEnergy&Power.-2005,20(1).-8588Afterthethreetowersofawetflue2gasdesulfurizationsystemwasgroupedintoone,thereemergedtheproblemofade2creaseindesulfurizationefficiencyandgypsumquality.Tocopewiththisproblem,animprovedschemewasputforward,whichconsistsindividingthecirculationoxidationtankatthebottomoftheabsorptiontowerintoanoxidationtankandamaterial2feedtank.Moreover,testswereconductedonaparallel2flowfalling2filmwetdesulfurizationplantbeforeandaf2tertheimplementationoftheimprovedscheme.Theresultsofthetestsindicatethattheimproveddesulfurizationplanthasalleviatedthecontradictionbetweenthedesulfurizatonefficiencyandthegypsumquality.ThehighpHvalueofthematerial2feedtankmakesitpossibletomaintainahighdesulfurizationefficiencyinthetower,whilethelowpHvalueoftheoxidationtankisfavorabletothedissolutionoflimestoneandtheoxidationofSIV,therebyenhancingthequalityofgypsum.Keywords:wetflue2gasdesulfurization,oxidationtank,material2feedtank,gypsum150t/h=TheApplicationofaCombustionSystemofPulver2izedCoalConcentrationandPreheatingRegulationona150t/hPulverizedCoal2firedBoiler[,]/ZHANGJian2sheng,LUJun2fu,ZHANGHai,etal(DepartmentofThermalEnergyEngineering,TsinghuaUniversity,Beijing,China,PostCode:100084)//JournalofEngineeringforThermalEnergy&Power.-2005,20(1).-8992AdescriptionisgivenofacombustionsystemnewlydevelopedbyTsinghuaUniversity,whichcomprisesanautomaticcontrolunitforconcentratingprimarypulverizedcoalandpreheatingprimaryair.Thecombustionsystemutilizesaprima2ry2airpipebendtocarryoutdense/leanseparationofthepulverizedcoal,andfeaturesasimpleconstructionandgoodseparationefficiency.Throughtemperaturemeasurementsitispossibletocontroltheopeningdegreeofapreheat2regulat29011