炉膛燃烧稳定性的火焰图像诊断方法

2007(12):2007-07-31:(1964-),,,,,E-mail:[e-mail]黄本元,罗自学,周怀春华中科技大学,湖北武汉430074[]通过对燃煤锅炉炉膛火焰图像辐射能信号的分析,从多幅火焰图像中综合得出反映全炉膛图像的特征量,据此可以准确地给出炉膛燃烧调整的程度,从而使燃烧便于监测与控制图像诊断分析对锅炉燃烧状况灭火预警,以及炉膛安全监控系统(FSSS)的分析等有显著的效果[]锅炉;炉膛;燃烧稳定性;辐射能信号;火焰图像[]TK223.2[]A[]10023364(2007)1200194,,[1],[2],[3,4],,,1,,,,[5],,,,,,,,,,2,,,rgb(),,,,,[6~8]t2007(12)2.1r,g,bG:G=0.3r+0.59g+0.11b(1),,CCD,,iCCD,1/250,i/j=Kj/Ki,KiCCD,nli=1,G=nliGi[0,255],5%[9],,:tCCD(m0)=C2(1r-1g)/lnr(m0)g(m0)5r5g(2),m0,C2,rg,11,,2.2,,,,,,,,[11,12]fy:fy=mj=1ni=1g(fij-fy)/K(3)1fg:fg=mj=1ni=1g(fij-fy)/L(4):mnxy;fijji;fy,,60;g(x),:g(x)=fijx00x0(5)KL,x0,,CCD,,,SySg,Sy:Sy=mj=1ni=1L(fij-fy)(6)2007(12)Sg:Sg=mj=1ni=1L(fij-fg)(7),L(x),:L(x)=1x00x0(8)Gm:Gm=SgSy(9)22,34s,0.45~0.5534s,,22.3200MW,400(1),3t[10](4),,,,0,,,,,,,343,,,;,,2007(12),FSSS,[][1],,.[J].,2002,17(98):166-168.[2].[M].:,2005.[3],,.[J].,2001,16(1):1-6.[4],,.[J].,1996,16(6):68-72.[5],,.CCD[J].,2000,20(1):70-72.[6].[D].,2004.[7]JorgeS.Marques,PedroM.Jorge.Visualinspectionofathermalelectricplant[J].Signalprocessing2000,80:1577-1589.[8]Y.Yan,G..Lu,M.colechin.Monitoringandcharacteriza-tionofpulverizedcoalflamesusingdigitalimagingtech-niques[J].Fuel,2002,81:647-656.[9],,.[J].,2004,20(2).[10].[D].,2002.[11],,,.[J].,2003,23(3).[12].[D].,2001.DIAGNOSISOFCOMBUSTIONSTABILITYINFURNACEBYUSINGFLAMEIMAGEMETHODHUANGBen-yuan,LUOZh-ixue,ZHOUHua-ichunMiddleChinaUniversityofScience&Technology,Wuhan430074,HubeiProvince,PRCAbstract:Throughanalysisofradiantenergysignalpickedupfromflameimageinthefurnaceofpulverizedcoalboiler,thecharacter-isticvaluereflectingimagesinthewholefurnacecanbecomprehensivelyobtainedfromagreatnumberofflameimages.Basedonthese,adjustingdegreeofcombustioninthefurnacecanbeaccuratelygivenout,thereby,makesthecombustiontobeeasilysuper-visedandcontrolled.Theimagediagnosismethodhasobviouseffectivenessforanalysingthecombustionsituationinboiler,theout-firealarm,andthefurnacesecuritysupervisingsystem.Keywords:thermalpowerunit;combustionstability,radiantenergysignal;flameimage(13)ANALYSISANDCALCULATIONOFTHELIQUIDPHASESYSTEMINLIMESTONE/GYPSUMWETFLUEGASDESULFURATIONPROCESSZHONGYi,GAOXiang,LINYong-ming,LUOZhong-yang,CENKe-faZhejiangUniversity,Hangzhou310027,ZhejiangProvince,PRCAbstract:Thelimestone/gypsumwetfluegasdesulfuration(WFGD)processisthemostessentialprocessforfluegasdesulfurationofboilersinthermalpowerplantsofourcountry.Thedesignofliquidphasesystemhasveryimportantsigificancetothedesignofentirelimestone/gypsumWFGDsystem.Combinedenergybalancewithliquidphasebalanceinthesystem,theliquidphasesysteminlimestone/gypsumsprayingtowerWFGDsystemhasbeenanalysed,andcalculationmethodbeinggiven.FourpracticalWFGDprojectshavebeencalculatedbyusingthesaidmethod,thecalculatedresultsbeingingoodagreementwiththatprovidedbyforeignWFGDtechnologysuppliers.Thesaidcalculationmethodcanbeusedinthedesignandperformanceoptimizationofthelimestone/gypsumsprayingtowerWFGDprojects.Keywords:utilityboiler;WFGD;limestone/gypsummethod;liquidphasesystem;sprayingtower