300MW大型循环流化床锅炉制造工艺研究

上海交通大学硕士学位论文300MW大型循环流化床锅炉制造工艺研究姓名：邓建国申请学位级别：硕士专业：动力工程指导教师：姜秀民;刘国平2005120120051210259100MW135MW300MW100MW135MW300MWSA-335P91300MW359Withthedevelopmentofthemanufacturingofpowerstationequipment,theparametersanddimensionsofcirculatingfluidbedboilerbecomebiggerandbigger.Althoughwehaveaccumulatedmuchmoreexperiencesinthemanufacturingoffluidbedboilerof100MWand135MW.Becauseofthegreatdifferentialsbetweenthestructureof300MWand100MW,135MW,theresearchofmanufacturingengineeringtothe300MWcirculatingfluidbedboilerisnecessary.Themaintaskofthisthesisistodosomemanufacturingengineeringresearchtothecriticalpartsof300MWcirculatingfluidbedboilerrelyontheXiaoLongTanproject.Doanalyzetothestructureoftwotypicalcyclones,thenstudyoutthetechnologyschemeofringheaders,tubepanelsandtheloftingschemeoftheblanksofconesandeccentriccones.Thisthesishasalsostudyoutthemanufacturingschemeofthehearth.Ithasdoneresearchtothetechnologyofcutting,welding,heatingtreatmentandintermediatefrequencybendingtothepipesofSA-335P91.Thetechnologyofautomaticweldingofthedrum’sfilletweld,thedistortioncontroltechnologyanddistortionalignmenttechnologyoflongheadershavealsobeenresearched.Throughtheseresearches,asetofappropriatemanufacturingtechnologytothe300MWcirculatingfluidbedboilerhasbeenfound.KEYWORDScirculatingfluidbed,boiler,technology,cyclone,hearth663763300MW95300MWALSTOMVelizy200-350MWCFB21025t/h21065t/h21065t/h300MWCFB300MWCFB300MWCFB---121025t/h17.4MPa35405,5405492.8%5SO2400mg/Nm366NOx350mg/Nm367840Figure1boilerofXiaoLongTan48.3m863415051mm14703mm4-6248.3m1470mmUUUFBHE4241356mm48mm5mmSA210C96.7mm156104145mm3248mm6mmSA210C2FHBELTSFHBELTSFHBELTSFHBEITS1FHBEITS1FHBEITS1FHBEITS2FHBEITS2FHBEITS2HTSHTSHTS3FHBEHTRFHBEHTRFHBEHTR43005a224963FBHE4b22c644300MW10636610mmH=21465mm111050mm44.5mm6.48mmSA210-A143172S=120mmt=6mmQ235-A244.5mm6.48mmSA210-A1t=6mmQ235-A3111mm219.133.35SA-106C6610219.119.8SA-106C3276.6b1201801201563116318012018018018090c172141.3Figure2lowerpartringheader1263Figure3projectionplan4Figure4locatingplate56Figure5upperpartleftringheader1363Fingure6upperpartrightringheader1abc2abcd3a907Figure7technicalringb180814631563c7779Figure8unitof180°Figure9technicalequipmentforheattreatmentd180d290904310155mm90bFigure10bentpanel16631802mFigure11assembleupperpartringheaderwithbentpanel1763Figure12pre-assembleofcyclone90901801236022m10mc13MMM6mm110mm4mm14mm(4+6+4=14)14mm14mm6610mm.44.5mm6.48mm20G.6mm110mmQ235-AFigure13stressanalyse1862Dn'mmDnmmDn6610-44.5=6565.5mmσMPaσ235MpaEMPaE2.0105MpaSmm(S=14mm)K0Ko=11.6742-41K1K1=1.5(742-14)Dn`0.54DnnDn`Dn0.541251.064143115aQ235-AbDnESsDnKEsKoDnss111`+-=Figure14mould1---upperpart2---locatingblock3---lowerpartFigure15platetypecyclone1962Q235-Aϕ9120mm7731mmcRA253MAdϕ2330mm10478mm2ab3a6mmQ235-A20b627856610200300mmb10mmQ235-Ad=4996mmD=9120mmH=749mmα12Figure16outspreadofupperpartcone2062L=()222/2/HdD+-1β=6è=D-d×360°/2L2Ô9120mmH=7731mm41925mm200300mm1710mmQ235-A21518D=4560mmd=1165mmH=10478mmX34â=D-d×360°/2L3X=d×L/D-d419Figure18weldingpictureoflowerpartconeFigure17pre-assembleofmiddlepart2162Figure19pre-assembleoflowerpartconec10mmRA253MAÖ3980mm1520mmD=3980mmd=3320mmH=1000mm20510H=dDDh-5h1=H-h6Rn=22)2sin(HDn+b7rn=HhRn18y=Dsinm°1809S=πD10D---d---h---n---m---Figure20outspreadofthecentershell22621232363300MWCFBCFB1212212354mm3958.5mm809mm1524mmΦ767.11mmΦ769.65mmSA-210C897.93475.5mm873.93475mm6mmSA-387M12-C271171mm150mm18696mm4171mm223X15Cr25-20Φ82.53.6mm9583St37-3K1325mm1281Figure22three-dimensionalpictureofhearthFigure21frontviewofhearthFigure23sleeve2463231a10mmb+0.3mm+2mm/m2mm/m2a1mm24b24c100%3a12222b256125106mm26Figure24worktableforexaminationofbenttubeFigure25pre-assembleworktableFigure26preparationfor6mmfinplateFigure27holesforsleeves25638mm6mm6mm274a2829H13000mm3500mm1100mmb2mmFCAW0-60-330Figure28assembleplanFigure29three-dimensionalassemblediagramFigure30assembledimensionexamination26632762SA335-P91SA335-P91SA335-P91SA335-P91SA335-P91SA335-P91SA335-P91SA335-P91A+CMSA335-P911SA335-P91Φ457×18232SA335-P91wt%CSiMnPSCrNiMoVNbN0.090.360.450.0160.0048.890.151.010.210.080.0453SA335-P91σb(MPa)σs(MPa)δ(%)(J)61275629872aSA335-P91-SA335-P91--11.8%SA335-P912.47%-SA335-P9190%10%2862154013702275SA335-P9190%10%-SA335-P91-SA335-P91C=C+Mn/6+Ni/15+Cr/5+Mo/4+V/41bSA335-P91200300-520040054SA335-P914SA335-P9101-4000.61.0MPa0.10.2MPa02-2000.61.0MPa0.10.2MPa03-50.61.0MPa0.10.2MPa045LGK8-1003SA335-P91100mm200mmabPTPTcPTd2mm4a1-2PT342mm-10mm2962bSA335-P91HRC40SA335-P91SA335-P91--SA335-P91SA335-P91-2mm-10mm-SA335-P91--5SA335-P91aSA335-P91-b2mm-10mm-c-SA335-P91SA335-P91SA335-P91SA335-P91SA335-P91SA335-P91SA335-P91SA335-P91SA335-P91SA335-P91SA335-P91SA335-P91SA335-P9113062aSA335-P91ϕ457×185bThermanitMTS3ER90S-B9Φ2.5ThyssenChromo9VE9015-B9Φ2.5Φ3.25CSiMnPSNiCrMoAlNbVN0.100.370.410.0180.0020.178.50.950.010.080.220.0572SA335-P91aY120025021502003100150135mm2Φ3.2390120A480150mm/min535mm1482b66100150SA335-P91150200SA335-P9135%200250Y20%SA335-P91200SA335-P912003006SA335-P912002501502001001501410mm7256mm8369cSA335-P912003003a72003003502023162300200/h233007Amm