旋流对冲燃烧锅炉燃料氮生成nox的试验研究 experimental study on conversion rate of fuel-nitrogen to nox for swirl-opposed firing boiler.pdfVIP
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旋流对冲燃烧锅炉燃料氮生成nox的试验研究 experimental study on conversion rate of fuel-nitrogen to nox for swirl-opposed firing boiler
旋流对冲燃烧锅炉
郑立国,魏 刚,张万德
河北省电力研究院,河北石家庄050021
[摘 要] 在不同负荷下对某电厂300MW机组旋流对冲燃烧锅炉空气预热器出口N晚排放浓
度、烟气成分、排烟温度等进行了测试,计算了燃料氮生成燃料型NO,的转化率,并对
其与运行氧量、锅炉负荷、锅炉效率之间的关系进行了分析。结果表明,旋流对冲燃烧
锅炉燃料氮生成NO,的转化率在20%~30%之间;炉膛温度较运行氧量对燃料氮生成
N0。的转化率影响较大。
[关键词]锅炉;旋流对冲燃烧;锅炉效率;运行氧量;燃料型NO。
[中图分类号]TK227.1
[文献标识码]A
[文章编号]1002—3364(2012)09—0029—03
[DOI编号]10.3969/j.issn.1002—3364.2012.09.029
EXPERIMENTALSTUDYoNCoNVERSIoNRATEoF To
SWIRL一0PPEDFIRINGBoILER
NO,FOR
ZHENG Wande
Liguo,WEIGang,ZHANG
HebeiElectricPowerResearch 050021,HeBeiProvince,China
Institute,Shijiazhuang
sourceof coalfired ona
Abstract:Tothe experimentalstudy
stuy NO。dischargedby powerplant,an
300MWsubcritical boilerwascarried atoutletoftheair
firing out.NO。emission pre—
swirl—opposed
unit
heater,flue andexhaust weremeasuredunderdifferentloads.
gascomponents gastemperature
basedonthe mech—
Conversionrateof tO calculated fuel—NO。formation
fuel一NO。was
fuel—nitrogen
andefficien—
withindexessuchas concentration,boilerload
anism,furthermore,its oxygen
relationship
of to the
was showthat,theconversionrate NO,of
cy an
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