[1]赵伶玲,赵长遂,周强泰,等.新型等离子体点火燃烧筒研究[J].东南大学学报(自然科学版),2008,38(6):1024-1028.[doi:10.3969/j.issn.1001-0505.2008.06.017]
 Zhao Lingling,Zhao Changsui,Zhou Qiangtai,et al.Study on new type of plasma ignition combustor[J].Journal of Southeast University (Natural Science Edition),2008,38(6):1024-1028.[doi:10.3969/j.issn.1001-0505.2008.06.017]
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新型等离子体点火燃烧筒研究()
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《东南大学学报(自然科学版)》[ISSN:1001-0505/CN:32-1178/N]

卷:
38
期数:
2008年第6期
页码:
1024-1028
栏目:
能源与动力工程
出版日期:
2008-11-20

文章信息/Info

Title:
Study on new type of plasma ignition combustor
作者:
赵伶玲1 赵长遂1 周强泰1 李磊2 金黄2 王培红1 吕震中1
1 东南大学能源与环境学院, 南京 210096; 2 深圳东方锅炉控制有限公司, 深圳 518057
Author(s):
Zhao Lingling1 Zhao Changsui1 Zhou Qiangtai1 Li Lei2 Jin Huang2 Wang Peihong1 Lü Zhenzhong1
1 School of Energy and Environment, Southeast University, Nanjing 210096, China
2 Eastern Boiler Control Ltd. Co., Shenzhen 518057, China
关键词:
等离子体点火燃烧器 等离子体燃烧筒 煤粉锅炉 稳燃
Keywords:
plasma ignition burner plasma combustor pulverized-coal fired boiler flame stabilization
分类号:
TK224
DOI:
10.3969/j.issn.1001-0505.2008.06.017
摘要:
以装有150 kW等离子体发生器的某等离子体点火试验燃烧器为例,应用数值模拟的方法对等离子体点火燃烧器的稳燃性能进行了研究,并提出了一种新型的径向/切向进风等离子体点火燃烧筒.研究结果表明,一次风速(风粉气流流速)、等离子体气流的穿透区域和煤粉浓度等是影响等离子体点火过程及煤粉着火燃烧的主要因素.径向/切向进风可以在燃烧筒内形成多向回流和旋流,使得风粉气流在燃烧筒内不仅有轴向速度,而且还有径向和切向速度,改变了轴向进风气流运动的单一性,增加了煤粉气流在筒内的停留时间,着火区域扩大,火焰充满度好,有利于燃烧筒内的稳燃.
Abstract:
Ignition and stabilization of coal combustion in some experimental plasma ignition burner with 150 kW plasma torch is analyzed. The main factors affecting the plasma ignition process and pulverized-coal combustion in plasma combustor are investigated. Based on the stabilization and combustion problem analysis, a new type plasma combustor with radial/tangential primary flow inlet is put forward and the characteristics of this type of combustor are also investigated. The research result shows that the primary velocity(pulverized-coal flow velocity), plasma flame area, plasma flow temperature and pulverized-coal particle density are the main factors for the plasma ignition process and pulverized-coal ignition. The plasma combustor with primary radial/tangential inlet can produce recirculation zones and swirl flow in the combustor. In addition, the velocity field and temperature field between two type inlet designs are compared.

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备注/Memo

备注/Memo:
作者简介: 赵伶玲(1979—),女,博士,副教授,zhao_lingling@seu.edu.cn.
基金项目: 教育部博士点专项科研基金新教师资助项目(20070286093).
引文格式: 赵伶玲,赵长遂,周强泰,等.新型等离子体点火燃烧筒研究[J].东南大学学报:自然科学版,2008,38(6):1024-1028.
更新日期/Last Update: 2008-11-20