循环流化床锅炉nox排放特性的试验研究 study on nox emission characteristics of circulating fluidized bed boiler.pdfVIP
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循环流化床锅炉nox排放特性的试验研究 study on nox emission characteristics of circulating fluidized bed boiler
12 东北电力技术 2012年第3期
循环流化床锅炉NOz排放特性的试验研究
曾 光,赵志强,张戟
(东北电力科学研究院有限公司,辽宁 沈阳 110006)
改变总风量的大小及配比。分别将锅炉各工况的运行床温稳定在830℃、880oC和930℃,记录并分析试验数据。随着
CFB锅炉负荷的增加,运行床温、风煤比及NO,的排放浓度均逐渐增大。当CFB锅炉的的负荷维持不变时,随着运行床温
的逐渐增大,风煤比逐渐减小,NO,排放浓度逐渐增大。CFB锅炉运行床温对NO。排放特性的影响大于锅炉风煤比的
影响。
关键词:循环流化床;NO,;负荷;床温;风煤比
【中图分类号】TK229.6;TK227.6[文献标志码]A[文章编号】1004—7913(2012)03—0012—03
基金项目:辽宁省电力有限公司2011年度科学技术项目(201lYBl023)
on Characteristicsof FluidizedBedBoiler
StudyNO,Emission Circulating
ZENG Ji
Guang,ZHAOZhi-Qiang,ZHANG
ElectricPowerResearchInstitute 1
(Northeast Co.,Ltd,Shcnyang,Liaoning10006,China)
on of are
Abstract:For characteristics fluidizedbed section carriedout
studyNO,emission circulating boiler,twoexperiments sepa-
flowandairflowofCFBboileris tO boiler on testdata
60%,80%and100%load,and
rately.Firstly,coal regulatedkeep running
isrecordedand boileris on totalairflowis tOmaintainboilerrun-
running100%load,and
analyzed;Secondly,CFBkept regulated
under 930℃bed testdataisrecordedand as
indicatethat theCFB
IlilIlg 830℃,880℃and temperature,and analyzed.Results
boilerload increasesandair-coalratio concentrationincreases
increases,bedtemperature increases,NO,emission gradually.While
CFBboilerloadisnot bed increasesandair-coalratio concentrationalsoincreases
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