静电除尘电源的发展.

刘　军　石健将(,310027)　静电除尘电源是静电除尘系统中的关键部分,其性能直接影响除尘器的除尘效果,以静电除尘电源在节能和提高除尘效率上的关键因素为基础,对静电除尘电源的发展进行分析研究。具体阐述了静电除尘电源经历了由单相供电向三相供电、工频调压向高频逆变以及单一供电模式向混合供电模式3条较为明显的发展脉络,指出高频静电除尘电源具有控制方式灵活、输出高电压波形可控、闪络后关闭速度快和重启迅速等优点,是当今静电除尘电源的主要研究发展方向。　静电除尘　除尘效率　三相　高频　高压脉冲0　,、、。、、4[1]。,。,,。。1　,。(),,、,。(1),。(1),AQ,[1]。η=1-e-AQω(1)ω=βUpUa(2)　AQ———,;ω———;　　β———;Up———;Ua———。,,,,,,。(2),。,。,,,,,,。,。(3)。,,,,。,,。、。(4)。,。,。,44　　　200810265。2　,,,3。(1)※[2-4]。,。,[5],1。1　,:①,,;②,,;③,,。,[2],2。,,。2　,,;,,,。2,,。,,,。(2)※[6-9]。4,。,,。,,。(IGBT)、。3,,、、,。,,:①,,PWM、PS-PWM[10-12]、PDM[13-14]。,,,。,,,[15-16]。②[17-18]。,,,。,、、,。③,、,IGBT,,。45　　　2008102653　4,、3[19](IGBT,)。4　4,,,,,;,,。IGBT,4;,,,。,,,。,IGBT,。(3)※[20-21]。。[20],5。,;、、、,。5　:①,;②,,;③,。,,。,,,。3　　,,、,。[1]　,..:,1993[2]　JohnsonNM,NeisterSE,BulterCF.Powersupplyforelectrostaticprecipitatorelectrodes:US,5631818[3]　GoebelKlaus.High-powerpowersupply:US,5267137[4]　ThomasFriedrich-Werner.Powersupplyapparatus:US,4,787,023[5]　..,1996,11(3):34-37[6]　Ranstad.Methodforcontrollingthepowersupplytoanelectrostaticprecipitator:US,5639294[7]　Grass,Norbert.Powersupplyforanelectrostaticprecipitator:US,6282106[8]　LiberatiGuglielmo.High-frequencyswitching-typeprotectedpowersupply,inparticularforelectrostaticprecipitators:US,525517846　　　200810265[9]　,,,.:,200520132783.5[10]　AkagiH,NabaeA.Avoltage-sourceinverterusingIGBTsfora50kHz10kVcoronasurfacetreaterIndustryapplicationssocietyannualmeeting.ConferenceRecordofthe1989IEEE,1989:1164-1169[11]　CzarkowskiD.Phase-controlledseries-parallelresonantconverier.IEEETransactionsonPowerElectronics,1993,8(3):309-319[12]　WuTF,YangHP,PanCM.Analysisanddesignofvariablefrequencyandphase-shiftcontrolledseriesresonantconverterappliedforelectricarcweldingmachinesProceedingsofthe1995IEEEIECON,1995:656-661[13]　KoudriavtsevO,WangShengpei,KonishiY,etal.Anovelpulse-density-modulatedhigh-frequencyinverterforsilent-discharge-typeozonizer.IEEETransactionsonIndustryApplications,2002,38(2):369-378[14]　FujitaH,AkagiH.Pulse-density-modulatedpowercontrolofa4kW,450kHzvoltage-sourceinverterforinductionmeltingapplications.IEEETransactionsonIndustryApplications,1996,32(2):279-286[15]　,,,..,2006,32(2):81-83[16]　Edwarde.Theeffectofhigh-voltagewaveformsonESPcurrentdensitydistributions.IEEETransactionsonIndustryApplications,1990,26(3):515-522[17]　JohnC.Anovelprototypedesignforatransformerforhighvoltage,highfrequency,highpoweruse.IEEETransactionsonPowerDelivery,2001,16(1):89-98[18]　YongJuKim,HatakeyamaH,NakaokaM.Comparativeevaluationsofphase-shiftedPWMresonantinverter-fedDC-DCconverterwithhigh-voltagehigh-frequencytransformerlinkProceedingsof1995InternationalConference,1995:657-664[19]　GrassN.Applicationofdifferenttypesofhigh-voltagesuppliesonindustrialelectrostaticprecipitators.IEEETransactionsonIndustryApplications,IEEE,2004,40(6):1513-1520[20]　RichardD,FranzN,WalterS,etal.HelmutelectrostaticpreciptatorPowersupply:US,4808200[21]　Santamaria,GeorgeT.Pulsedpowersupplyforanelectrostaticprecipitator:US,4600411　　310027　102　(0571)87951332E-mail　[e-mail]2007-12-06(37),。(3),,。[1]　,,..,2002(3):27-29[2]　,.(SCR).,2005(4):1-4[3]　..:,2007:117-126[4]　SchaubG,UnruhD,WangJ,etal.KineticanalysisofselectivecatalyticNOxreduction(SCR)inacatalyticfilter.ChemicalEngineeringandProcessing,2003(42):365-371[5]　,.delphi.:,2004:64-156[6]　,..,2001(3):240-244[7]　..,1998(4):43-48[8]　..,2006(1):16-20[9]　,..,2003(12):2777-2809[10]　,..,1999(7):19-21[11]　SalamaAIA.Samplingschemesformassbalanceofflowsheetswithmulti-componentstreams.Int.J.MinerProcess,1999(55):219-229[12]　,,,.SCR.,2007(3):1126-1129　　400045　　B3219　E-mail　[e-mail]2008-05-2347　　　200810265tionsafety.Keywords　tipper　mechanismsofdustproduction　numericalsimulation　collectingandcleaningdust　dustcleaningeffectEXPERIMENTALRESEARCHONHIGHTEMPERATUREGRANULARBEDFILTERHaoJingzhang　HePeng(28)…………………………………………………………………………………………………………………Abstract　Thegoalofthisstudywastoevaluatetheperformanceofgranularfilterdesignedforhotgascleaning.Theeffectoftemperatureonthecharacteristicofgranularbedfilterforhightemperaturedustremovalwasstudied,andaformulaoftemperatureversusdustremovalefficiencyandpressuredropwasobtained.Moreover,theexperimentalresultsweresimilarwiththoseoftheformula.Withtheincreaseoftemperature,thedust-removingefficiencyandpressuredropwouldbecomehigherduringtheprocessofdust-cleaning.Keywords　dust-removing　granularbed　hightemperatureINVESTIGATIONONENVIRONMENTALPROTECTIONOFBUILDINGCONSTRUCTIONTianJing(31)………………………………………………………………………………………………………………………………Abstract　Itisdoneaninvestigationontheattitudeofmanagingpersonnelofconstructionenterpriseandthatofresidentsaroundworksitestoenvironmentalprotection.Theresultsshowthatintreatmentofpollution,buildingrefusesaremainlyincineratedortransportedtoalandfillsite;forconstructionnoises,therearenoconstructionsatnight,antinoisewallsaresetup.Insufficientsupervisionofenvironment.lessinputinenviron-mentalprotectionandlackofscientificmanagementarethemainfactorstopolluteenvironmentbybuildingconstructions.Therelevantsolutionsareproposedbasedonperfectionofspecifications