大型电站锅炉过热器爆管原因综述及对策

CausesSummaryandCountermeasuresforSuperheaterTubeBlastingofLargeUtilityBoilers(150001)(150000)(132012),,AbstractThedirectcausesforsuperheatertubeblastingareanalyzedintermsofdesign,manufacture,erection,maintenanceandoperation.Thefundamentalcausesforsuperheatertubeblastingareputforwardfromtheineffectivenessmechanismpointofview,andpreventivemeasuresaregivenaswell.Keywordsutilityboilerssuperheaterleakagetubeblasting0,,,,,(BTF),200MW1976,1417,72%[1],,,,,,,,,,,,1,311111111,,,,11112B&WW,,80100[2]111131,[3]111145,[4]111154,,,[5]11211211,4[6]1121246219981031©1994-2006ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.[7]112131000töh,[8]11214DG670214028,,[9]112151[10]11311311,,6(DG670ö14028)7[11]11312,,,,113133,,,[12]113149,,,,[13]113151,,,,,[14]113165,É,ÊÉ,,[15]11317223h,,,,[16]113182017mm,2030;110mm,,[17]11319SG400ö1402M413,37111%,[18]113110SG220210021,150160,215,,[19]26,22(1)1++++++++++++:+;,9:211,,,,3:,,:;;;;;;;,,212,,,,:;;;;;7231199810©1994-2006ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.:,;;,,:;;;214,,,,,:,;;CO2;;,,,;,p215,:;,;,;;,;,216,:,,;;;;;;,;,217V2O5Na2SO4,,,,,:VNaS;,,;,,;,;CaSO4MgSO4;2182,2,,;2,,;,2219:;8219981031©1994-2006ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.();3,,,41.1,1994,42.350MW.,1993,53.1.,1993,44.5.,1983,45.HG2670ö14029.200MW,1987,126.4.,1985,17.200MW.8.1000töh.,1993,59.670töh.,1993,310.,1994,1011..,1993,212.,1994,1013.9.,1993,314.1993.,1993,515.130töh.,1993,516..17.1000töh.,1994,618.400töh.,1993,519.SG220töh..1991,1220..,1994,7:1998206201()9231199810©1994-2006ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.