热力发电Issue(5)：87-90,4.DOI:10.3969/j.issn.1002-3364.2014.05.087
锅炉二次风箱流量分配特性数值模拟
Numerical simulation on air flow distribution characteristics in boiler secondary-air-box
摘要
Abstract
Taking the secondary-air-box of a 600 MW unit boiler equipped with swirl burners as the example,numerical simulation was conducted to investigate the air distribution and flow char-acteristics among each burner inside the secondary-air-box.The results show that,the flow rates of side burners were lower than that of the middle one,but the deviation was j ust within 6%-8%. At the burner's outlet section,air velocity from the facing air side was 10m/s lower than that from the back air side.By adj usting the secondary air door's opening degree of the five burners,the combustion optimization scheme that can increase the side burner'air flow was obtained.The sim-ulation results agreed well with the field test results.关键词
锅炉/旋流燃烧器/二次风箱/流量分配/流动特性Key words
boiler/swirl burner/secondary-air-box/air distribution/flow characteristics分类
能源科技引用本文复制引用
范庆伟,张帆,刘定坡,杨培军..锅炉二次风箱流量分配特性数值模拟[J].热力发电,2014,(5):87-90,4.基金项目
中国华能集团公司科学技术项目“二次再热机组技术方案研究及可行性论证”(HNKJ12-H05) （HNKJ12-H05）
