300MWCFB锅炉一次风管及调门防磨技术探讨

300MWCFB,(,641100):,,,,,,:;;;Abstract:SichuanBaimaCFBdemonstrationpowerplantisthedemonstrationpowerplantofChinaintroducingFranceALS2TOMcompany300MWlargeCFBtechniqueandoneofthebiggestsinglecapacitysubcriticalCFBcompany.NowBaimacom2panyhasrunfortwoyears.Itisworthtomakeasummaryofproblemappearedandmodificationduringthewholerunningprocessoftheunit.Theabrasionoftheprimaryairduct,thesecondairductandcontrolvalveareheadacheproblemexistentinmanyconstantabrasionequipmentofcompany.Theproblemleadstohugeairandpowderleakageandeffectserioustheunitinsafetyandeconomicrunning.Sothefirstthingistopreventtheprimaryairduct,thesecondairductandcontrolvalvefromabrasion.Keyword:CFB;Abrasion;Theprimaryairduct;Controlvalve;abrasionresistant:TK227:B:100326954(2008)06200272031(CFB),AA,,2B,,,,,(),,,,,,2(1),,(,3/41201401/3,1000mm1500mm),(2),,,AB,ABAA,A,(1490r/min,1480r/min),,,,,120200mm,,,,,,,,(3),316200812SichuanElectricPowerTechnologyVol.31,No.6Dec.,20081723,,,300450mm30%40%,,,,,12:12(4):=3040,,,,,,(5),,:1),3040;2),,;3),),5),,40%,3,,,,3.1,,,,,,,,,,,,AB,,,,,,10%10:,,,,3.2:;;;,,,316200812SichuanElectricPowerTechnologyVol.31,No.6Dec.,2008482,610mm16Mn,,,,50mm,2,,2B,,,,,,,;,,;,,,SCZ20,68MPa;HV397,0.9%;4.32m;,0.45mm,,3.3,1mm,,,,::,;:80MPa;:15MPa;:10MPa;:60mm/mm/10-6;:-60+250;:0.2%;:A:B=1:1();:45min;:12h;:4d,,11.5mm,25,,,:,1mm;,,,0.1MPa,,4,,,(CFB),,,:,19661,,,,,19732,,,,100MW300MW15,(:2008-09-11)316200812SichuanElectricPowerTechnologyVol.31,No.6Dec.,200892