超临界循环流化床锅炉的可行性

:CN23-1249(2002)04-0001-05:2002-09-20:(1967-),,,3:863(2002AA529100)(2001BA401A03)31,1,1,1,1,2,2,2,2(11,100084;21,150046):600MW,,:;;:TK229.2:AFeasibilityoftheSupercriticalPressureCFBBoilerLUJun-fu1,YUEGuang-xi1,ZHANGJian-sheng1,LIUQing1,FENGJun-kai1,LIUBao-zhu2,YuLong2,YANGZhong-ming2,ZHANGYan-jun2(11DepartmentofThermalEngineering,TsinghuaUniversity,Beijing100084,China;21HarbinBoilerCo.,Ltd.,Harbin150046,China)Abstract:Thefeasibilityofthesupercriticalpressurecirculatingfluidizedbed(CFB)boilerisinvestigat2edfromnotonlytechniquebutalsoeconomy.ItisanalyzedwhytherearelesstechnicaldifficultieswhenthemainsteampressureissupercriticalinCFBboilerthanthatinpulverizedcombustion(PC)boiler.Theeconomyindexesarecalculatedtakinganexampleof600MW,andtheresultsshowthatsupercriticalpressurecirculatingfluidizedbed(CFB)boilerisalsofeasibleineconomy.Keywords:supercriticalpressure;circulatingfluidizedbed;feasibility02080,,,,,:9.81MPa53530.04%;12.7MPa53532.16%;16.3MPa535/53737.12%;24.3MPa540/56040.95%,,1,(),,(28%12,4200211BOILERMANUFACTURINGNo.4Nov.2002©1995-2005TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.+(FGD)88%,+45%,111.1;;NOxSOx;[1]80,18.6MPa90,[2],,1.2,,(1)(NHI/PA)1.605106W/m25.664106W/m2[1],(2),,(3),,,,(4)36%,,,,(5),15%20%SOX,SOX,(6)NOX,,NOXNOX,NOX30010-6,NOX,20010-6,,1.3[3]250MW,[1,3],,,,,,,;,2186©1995-2005TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.,,:FosterWheelerSteinABB[4],:;;;,,,[5,6],90[7]1.4,,,2,600MW16.7MPa24.6MPa,1.8%,2%2,,25MPa,,,[8],3322.1:(),,,,,,,,,,,700MW,4kPa(16.7MPa538/538)41.9%,(25MPa,540/560),1.5%,43.3%27MPa585/600,44.5%35MPa34,:©1995-2005TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.700/720,47.7%,442.2,16.6MPa,538/538,16.631MPa,535600,1MPa,0.18%0.29%,,;16.631MPa,535600,10,0.24%0.36%,,;,1.7%2.4%,,2.316.28MPa25.3MPa:,543;20%;()10%;8(),78%;140%,79%;,4.9kPa5,16.28MPa25.3MPa,25.3MPa16.28MPa,300MW2.52%,600MW3.51%,1000MW4.08%,52.4:=1000UQar,netKqNNgBCf(1):U();KqN,qNKK,1.2;Cf(/);Qar,net(kJ/kg);B(h/a):C=UNg(2)Cu/Cu(%);Cu/CcQar,net29307kJ/kg,B7000h/a,(1):=1000KqNCuCuCuCc(3)25.3MPa16.28MPa,(2)300MW600MW1000MWqN826.481228.61381.6kJ/kwh;K1.2;Cu/Cc2%;Cc,Cu4186©1995-2005TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.,300MW600MW1000MW(Cu/Cc):1.15:1:0.85300MW600MW1000MW6.745.864.98,f=n(4)n600MW,n1.05%,n=4,f=7.12,,2.52%,,5%10%,,2.6+11600MWPC+FGDSPCFB/kW21/cal(kWh)-1/aPC+FGD109023822.71.8SPCFB96722470,600MW300MW,10%20%,40%,20%,0.5%,2.4%5.5%600MW,250t,,,600MW,,,3CFB,[1]SkowyraRS,CzarneckiTS,SunCY,etal.DesignofaSupercriticalSlidingPressureCirculatingBedBoilerWithVerticalWaterWalls[A].In:RubowLNed.Proceed2ingsofthe13thInternationalConferenceonFluidizedBedCombustion.NewYork:ASME,1993:17-251[2],,.[J].,2002,2:10-131[3]FosterWheeler[R].1999,101[4],,,.[J].,2002,17(5):384-3881[5]JinXiaozhong,LuJunfu.ZhangJiangsheng,etal.Ex2perimentalInvestigationonHeatTransferinIndustrial-scaleCirculatingFluidizedBedBoilers[A].In:WertherJed.Proceedingofthe6thinternationalconferenceofCF2BC[C],NewYork:ASME,1999:356-3611[6],,,.[J].,2000,40(2):94-971[7],.[J].,1999,33(9):71-751[8],,,.[J].,1996,.11(1):30-321(:)54,:©1995-2005TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.