摘要
通过数值模拟的方法,对传统结构的百叶窗式水平浓淡燃烧器叶片进行研究分析,得出燃烧器内部叶片后面会形成回流区,造成叶片背风侧的磨损和煤粉的滞留。并且,分析了不同叶片磨损后,对燃烧器整体性能的影响。为了解决上述问题,提出了在叶片后面增加锥体的新型燃烧器叶片结构,并通过数值模拟对新型燃烧器叶片进行了分析,发现此结构能明显消除回流、降低燃烧器阻力,并且能够保证燃烧器的煤粉浓缩效果。
Through the numerical simulation method,the traditional vanes of the horizontal bias burner is studied and analyzed,and it is found that the visible circumfluence zones will form at the downstream of all vanes,resulting in the abrasion of the leeward side of the vanes and the pulverized coal stranded.And the influence of different vanes abrasion on the burner performance are analyzed.In order to solve the above problems,a new burner type of adding the cone at the leeward side of the wanes was put forward,and the new structure vanes of the horizontal bias burner is analyzed through numerical simulation.It was found that the new structure vanes can significantly eliminate the circumfluence zones,reduce the resistance of the burner,and ensure the pulverized coal concentration effect of the burner.
作者
于磊
宋继坤
姜志军
王毅岩
张治湖
YU Lei;SONG Jikun;JIANG Zhijun;WANG Yiyan;ZHANG Zhihu(School of Control and Computer Engineering,North China Electric Power University,Beijing 102206,China;Yantai Longyuan Power Technology Co.,Ltd,Yantai 264000,China)
出处
《电力科学与工程》
2019年第2期71-74,共4页
Electric Power Science and Engineering
基金
中央高校基本科研业务费专项资金资助项目(2016MS48)
关键词
水平浓淡燃烧器
叶片
锥体
回流区
数值模拟
horizontal bias burner
vane
cone
circumfluence zone
numerical simulation
