期刊文献+

低氮改造对四角切圆锅炉NOx生成特性的影响 被引量:2

Effects of Low-NOx Retrofit on NOx Formation in a Tangentially-fired Boiler
分享 导出
摘要 对某300 MW四角切圆锅炉低氮改造前后NOx的生成特性进行了数值计算,分析了低氮改造对NOx生成特性的影响.结果表明:原有双通道自稳燃型燃烧器稳燃腔的设计明显加速了热力型NOx的生成;新型水平浓淡燃烧器浓侧和淡侧煤粉均处于偏离化学当量比条件下燃烧,喷口附近火焰温度明显降低,有利于控制热力型NOx的生成,缺氧燃烧降低了煤粉的燃烧效率,冷灰斗区域及三次风以上区域燃料型NOx的生成速率有所增大. Numerical simulation was conducted to NOx formation characteristics in a 300 MW tangentially- fired boiler before and after low-NOx retrofit, so as to analyze the effects of low-NOx retrofit on the NOx formation characteristics. Results show that the design of stabilized combustion cavity in the original dual- channel self-stabling burner obviously increases its thermal NOx emission. The combustion of both dense and dilute pulverized coal-air mixture flow in the new horizontal bias burner is under the condition devia- ting from the chemical equivalent ratio, which lowers the flue gas temperature around burners and com- presses the emission of thermal NOx. Rare oxygen combustion also reduces the combustion efficiency, and increases the production of fuel NOx in cold ash hopper and in upper furnace area above tertiarv air flow
作者 付忠广 石黎 段学农 朱光明 吕当振 FUZhongguang , SHI Li , DUAN Xuenong, ZHUGuangming, LUDangzhen (1. MOE's Key Lab of Condition Monitoring and Control for Power Plant Equipment, North China Electric Power University, Beijing 102206, China; 2. State Grid Hunan Electric Power Corporation Electric Power Research Institute, Changsha 410007, China)
出处 《动力工程学报》 CAS CSCD 北大核心 2015年第3期185-190,共6页 Power Engineering
基金 中央高校基本科研业务费专项资金资助项目(2014ZZD04,2014XSl7)
关键词 四角切圆锅炉 NOX生成特性 空气分级燃烧 水平浓淡燃烧器 tangentially-fired boiler NOx formation characteristic air staged combustion horizontal biasburner
作者简介 付忠广(1963-),男,河北邢台人,教授,博士,研究方向为:电站机组运行优化、洁净煤发电等.电话(Tel.);010—61772361;E-mail:fzg@ncepu.edu.cn.
  • 相关文献

参考文献4

二级参考文献19

共引文献39

同被引文献25

  • 1潘维,池作和,李戈,岑可法.四角切圆燃烧锅炉燃烧和污染物排放数值模拟[J].浙江大学学报:工学版,2004,38(6):761-764. 被引量:14
  • 2李代力,王智化,许岩韦,王华,吕钰,刘建忠,周俊虎,岑可法,.燃尽风配风比例对1000MW超超临界锅炉炉内燃烧过程影响的数值模拟[J].能源工程,2012(4):1-5. 被引量:7
  • 3王志刚,禚玉群,陈昌和,徐旭常.四角切圆锅炉流场伪扩散效应网格的研究[J].中国电机工程学报,2007,27(5):22-28. 被引量:27
  • 4环境保护部,国家质量监督检验检疫总局.GB13223-2011火电厂大气污染物排放标准[M].北京:中国标准出版社,2011. 被引量:1
  • 5HUANG Wenjing, MIAO Zhengqing, WANG Ci cheng, et al. Numerical simulation study of low NOx emissions combustion in a 300 MW tangentially fired boiler[J~. Boiler Technology, 2014, 45(3): 39-43. 被引量:1
  • 6DENG Niannian, ZHOU Zhen, XIAO Xiang, et al. Simulation on combustion process and analysis onslagging behavior of a 660 MW swirl-opposed coal- fired boilerEJ3. Journal of Chinese Society of Power Engineering, 2014, 34(9): 673-677. 被引量:1
  • 7LI Debo, XU Qisheng, SHEN Yueliang, et al. Nt merical simulation on combustion characteristics in tangentially-fired boiler with variable volumes of SC FA[-J~. Journal of Chinese Society of Power Engineel ing, 2014, 34(12): 921-931. 被引量:1
  • 8FU Zhongguang, SHI Li, DUAN Xuenong, et al. Effects of lower-NOx retrofit on NOx formation in a tangentially-fired boilerFJ~. Journal of Chinese Society of Power Engineering, 2015, 35(3) : 185-190. 被引量:1
  • 9LI Daili, WANG Zhihua, XU Yanwei, etal. Numer- ical simulation of combustion process for an 1 000 MW ultra-supercritical boiler at different air distribu- tion proportions[J]. Energy Engineering, 2012(4) : 1- 5, 14. 被引量:1
  • 10LIU Yarning, LI Fangyong, XU Qisheng, etal. Nu-merical study on N()~ emission characteristics of a 600 MW opposed firing boiler[-J~. Journal of Chinese So- ciety of Power Engineering, 2015, 35(5) .. 341-347. 被引量:1

引证文献2

二级引证文献4

投稿分析

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部 意见反馈