W形火焰锅炉的风量和煤粉均匀特性对燃烧的影响

:10072290X(2002)0320016203W,,,,,(,510600):W,,,W:W;;;:TK22711:AEffectofairflowandpulverizedcoalconcentrationuniformityoncombustioninaW2firingboilerYUYue2xi,LINai2zhao,LUOMeng,XUQi2sheng,SONGJing2hui,WENZhi2yong(GuangdongPowerTest&ResearchInstitute,Guangzhou510600,China)Abstract:ThecombustionfeaturesofW2firingboilersareintroduced;thecharacteristicsofairflowandpulverizedcoalcon2centrationuniformityintheunitpulverizedcoalsystemandtheireffectsoncombustionareanalyzedemphatically.Cold,hottestsandregulatingresultsaredescribedrespectively.Finally,itisindicatedthattheairvelocityandpulverizedcoalconcen2trationuniformityregulatinginW2firingboilersshouldbecarriedoutinhotpositiontomeetthedemandofcombustion.Keywords:W2firingboiler;unitpulverizedcoalsystem;uniformity;combustion,,,,,,,,,,,,,,:,,:2001207205:2002205213,,,,W,,,,V,W,,,,,W101025t/hW,4D211D153Vol115No1320026GUANGDONGELECTRICPOWERJun12002©1995-2005TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.,,1-D211D,1,3,6,AB1233;AB4563;CD1233;CD4563,,B,28m;A,10m,,,,,6,1,5,2,,,,::,,,,:211,,,,11m/s123456A301730133010301230183013B281728132912291229192819C301530103013291930153018D271828122718281927122912,,,:253MW,;(-140+20Pa);,12191%;,(23m,1267,1288,1112,1058),,,,,,,,110220:10=10+10,20=20+201,0,11,22,,,,120:0=10-20=10+10-20-20=0+01,J,J00713:W©1995-2005TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.,J0=0+01,,0=0(1+K)J:J=J0(1+KJ)=0(1+KJ)+0(1+KJ);=0(1+K)+0(1+K)1,,,KJ,K,K(),KJ,K,K,J,,,,,,,,6,,(,257MW),22,,,B,2m/s(8%);C,5m/s(17%),,A5D53m/sB6C64m/s,2m/s123456A241627192518271127112719B251625132510251323122413C271927192716221825162719D261127142218251623152812212,,,(259MW)33m/s123456A261026132516251626132619B261025162511251325142613C261926192616261026132618D261326102610261026162613,,,:6,,6,3,,,,,259MW,;(-110-35Pa);7124%;(23m,1265,1324,1289,1294),,,,1250,,,,,,,,(37)8115©1995-2005TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.312,I/O,,,,24VDC420mA,313,,,,INFI290,,,,314100%CRT,,CRTBTG,,,,315100%,,,316,,,,-,,,4INFI290PROCONTROL2P4300MW,INFI290PROCONTROL2P,INFI290,,,,:[1],,,.2300MW[R].:,1998.[2],.INFI290[R].:,1995.:(1958),,,,(18)3a),,,,b)W,,c)W:[1],,,.DG1025/1812W[J].,2002,15(2):2326.:(1976),,,,,733:300MW©1995-2005TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.