超临界直流炉机组高沉积率分析
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2019-04-27 16:47:49
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超临界直流炉机组高沉积率分析书·78·第32卷第9期2011年9月电力建设ElectricPowerConstructionVol32,No9Sep,2011中图分类号:TM623.7文献标志码:A文章编号:10007229(2011)09007803600MW超临界直流炉机组高沉积率分析及对策张小霓1,王琳2,吴文龙1,朱莉娜1(1.河南电力试验研究院,郑州市,450052;2.南阳天益发电有限责任公司,河南省南阳市,474671)AnalysisandCountermeasuresofHighDepositRatesin600MWSupercriticalOncethroughBoilerZHANGXiaoni1,WANGLin2,WUWenlong1,ZHULina1(1.HenanElectricPowerResearchInstitute,Zhengzhou450052,China;2.NanyangTianyiPowerGenerationCo.,Ltd.,Nanyang474671,HenanProvince,China)ABSTRACT:Thechemistrycheckupismadeinthefirstmaintenanceofthesupercriticaloncethroughboiler600MWunitsinHenanProvince.Itisshownthatthedepositratesarehighonthewatercooledwall,coaleconomizer,andtheturbineblade.Theformationofsaltdepositioniscomplicatedintheturbineblade.Accordingtotheoperationalstatus,thereasonsareanalyzedandthesuggestionsprovided.KEYWORDS:supercriticaloncethroughboiler;scaleformation;saltdeposition;feedwatertreatment;depositrate摘要:在河南某600MW超临界直流炉机组首次大修时,通过对机组化学检查,发现水冷壁、省煤器、汽轮机叶片沉积率较高,汽轮机积盐叶片成分复杂。针对
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