大型电站锅炉分隔屏过热器超温爆管原因的分析

21320016POWERENGINEERINGVol.21No.3June20011229:100026761(2001)03212292041,2,2(1.,200336;2.,200240):,,,,322:;;;;:TK223.3+2:A:2000202214:(1967-),,1990,19930300MWUP,1025töh,,,5,,4,,:(1)2,25251225(2)12Cr1MoV,TP304H2SA21325()57mm7mm,51mm6mm19943,1999,320005,4:1924251:,,,11,,,:(1)300MW220MW150MW,,(1)(2)21:kcalös300MW3561360929472610250MW2520264326372175220MW2697272924242229490C506C(,460C476C)(3)400C410C(402C404C)(4)25,,:,1:1171819202122232425,1192324252,:tbw=tgz+LBqmax{Dö[Km(1+B)]+1öA2}tbw,CtgzL()BqmaxDA2Km:3150MW220MW300MW33:300MW,25,550C,57mm7mm51mm6mm536C3()()2GB922828812Cr1MoV2,032121,57mm,555C,5%,7.26mm;10%,7.64mm,7mm,51mm,536C,10%,6mm,6mm,,,,,415C425C,428C,,405C,,,57mm7mm,565C575C;51mm6mm,546C556C:,212Cr1MoV,57mm7mm12Cr1MoV,51mm6mm(MPa)17.2717.27(C)520530540550560570510520530540550560(MPa)9886777165571109886777165(mm)4.625.205.756.186.687.503.714.134.655.145.535.98C10.50.50.50.50.50.50.50.50.50.50.50.50%A10.000.000.000.000.000.000.000.000.000.000.000.00C20.000.000.000.000.000.000.000.000.000.000.000.00(mm)5.125.706.256.687.188.004.214.635.155.646.036.485%A10.050.050.050.050.050.050.050.050.050.050.050.05C20.230.260.290.310.330.370.190.210.230.260.280.30(mm)5.355.966.536.997.528.374.404.845.395.906.316.7810%A10.110.110.110.110.110.110.110.110.110.110.110.11C20.510.570.630.680.740.820.410.450.510.570.610.66(mm)5.626.276.887.367.928.824.625.085.676.216.647.14,,470C,530C,(470C)60CGB9228288,,100C,,,,300MW,456C,498C,555C,99C,GB9228288,:(1),,,(),,,,,119232425,(2),,,(3),20C,10C,13213,,,,,,(4),,,,,,,,,,3,,:(1),,,T91(2),,,400C(3)(),,,20C,;0.02MPa(4),,,(1)(2)(3)(4),:[1].[R].1984,9.[2],.[J].JBöZ201283.AnAnalaysisonTubeExplosioninDivisionPanelforPowerStationBoilerKUANGJiang2hong1,CHENGDuan2yu2,SHIPing2yang2(1.MechanicalEngrg.College,ShanghaiUniv.ofEngrg.Science,Shanghai200336,China;2.ShanghaiPowerEquipmentResearchInstitute,Shanghai200240,China)Abstract:Ananalysisinmadeonthebasisofexperimentaldatatofindthecausesoftubeexplosionindivisionpanelofapowerplant,andretrofittingmeasuresareintroducedtoensuresafeoperationofthepowerplant.Figs2,tables2andrefs2.Keywords:powerstationboiler;divisionpanel;tubeexplosion;heatdifference;walltemperaturecalculation71,1,2,2(1.,200245;2.):,2232121