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FeaturesandCountermeasuresofHigh2temperatureTubeCorrosion2burstingontheFlueGasSideofLargeSizeBoilers(310027),105MW,313,,,314,,,100töh,,,,,,,,,,,16:10,14MW,212MPa,816töh,1015töh,,246215315,,20h,70,35,20min,2030,,5031624t,20t:1998202218()()40%,50%,,,,,,,,,1HCIH2SNaOHSO2,,,SO2SO3H2S,;,S,Fe,FeS,Fe2O3,,,KNaS,,K2ONa2O,SO3,SO3Fe2O3Na3Fe(SO4)3K3Fe(SO4)3,:3M2SO4+Fe2O3+3SO32M3Fe(SO4)3(1)3M2S2O7+Fe2O32M3Fe(SO4)3(2)MFe2O3,,550,,550,,,300,,,400,50,1,300,H2S,K3Fe(SO4)3Na3Fe(SO4)3,,550,,,650750373119985,550,550,,2211,,;,,:,,;212,,,213NaöKNaK,3311111115mmöa,2mmöaH2SSO3,a1,SO3V2O5,,,b1,c1,,d1,,e1,,312,KNaS,,,550,,600620,:1997208229()TP347HTP347H(1Cr19Ni11Nb),Ni1Cr19Ni9(TP304H),Nb+Ta,TP304H,NbTi,,1828,,:1Cr18Ni9Ti(T,TiN)()T91CHM12EM12CrMo,2,1ö41ö3,22,TP347H650,7041828300MW,,,;500,,,;,,(),,,,,(),,,,,,,,,,,,,,,,,()471998531