• CN:11-2187/TH
  • ISSN:0577-6686

›› 2000, Vol. 36 ›› Issue (6): 63-67.

• 论文 • 上一篇    下一篇

中心风对旋流煤粉燃烧器性能的影响

王磊;李争起;郝金波;宋资勤;吴少华;秦裕琨   

  1. 哈尔滨工业大学能源科学与工程学院
  • 发布日期:2000-06-15

EFFECTS OF CENTRAL AIR ON THE PERFORMANCE OF THE SWIRL BURNER

Wang Lei;Li Zhengqi;Hao Jinbo;Song Ziqin;Wu Shaohua;Qin Yukun   

  1. Harbin Institute of Technology
  • Published:2000-06-15

摘要: 通过冷态PDA试验,对不同中心风率下径向浓淡旋流煤粉燃烧器出口的速度及浓度场进行了测量,得出了中心风对燃烧器出口气固流动特性的影响;工业性热态试验研究了中心风对燃烧器出口温度及烟气气氛的影响,得出了中心风对燃烧和NO x排放的影响规律,为设计和运行提供了参考性依据。

关键词: NO{sub}x控制, PDA测试, 煤粉燃烧, 气固两相流, 旋流煤粉燃烧器, 光固化成型技术, 空心叶片, 凝胶注模, 台阶效应

Abstract: The cold experiments measured by a laser phase dopple particle analyzer(PDA)and pilot tests are done about effects of the central air on the performance of the radial bias combustion swirl pulverized coal burner(RBC). The cold experiments show that the central air has great influence on the flow pattern and particle concentration at the swirl burner exit. Pilot tests show that the central air has great influence on the coal combustion. In addition, the central air has little contribution to the NO, emission.

Key words: NOx control, PDA measurement, Pulverized coal combustion Gas-particle two phase flows, Swirl burner, gel-casting, hollow blade, step effect, stereo lithography

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