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[1]朱志强,初庆钊,石保禄,等.基于急速混合管状火焰的甲烷富氧燃烧特性[J].燃烧科学与技术,2017,(03):242-248.[doi:DOI 10.11715/rskxjs.R201605012]
 Zhu Zhiqiang,Chu Qingzhao,Shi Baolu,et al.Oxy-Fuel Combustion of Methane in a RapidlyMixed Tubular Flame Burner[J].Journal of Combustion Science and Technology,2017,(03):242-248.[doi:DOI 10.11715/rskxjs.R201605012]
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基于急速混合管状火焰的甲烷富氧燃烧特性()
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《燃烧科学与技术》[ISSN:1006-8740/CN:12-1240/TK]

卷:
期数:
2017年03
页码:
242-248
栏目:
出版日期:
2017-06-15

文章信息/Info

Title:
Oxy-Fuel Combustion of Methane in a Rapidly Mixed Tubular Flame Burner
作者:
朱志强初庆钊石保禄赵晓尧李军伟王宁飞
北京理工大学宇航学院,北京 100081
Author(s):
Zhu ZhiqiangChu QingzhaoShi BaoluZhao XiaoyaoLi JunweiWang Ningfei
School of Aerospace Engineering,Beijing Institute of Technology,Beijing 100081,China
关键词:
富氧燃烧管状火焰混合可燃范围火焰结构
Keywords:
oxy-fuel combustiontubular flamemixingflammable rangeflame structure
分类号:
TK16
DOI:
DOI 10.11715/rskxjs.R201605012
文献标志码:
A
摘要:
采用一种将燃料与氧化剂分别切向喷注的急速混合管状火焰燃烧技术,开展了甲烷富氧燃烧实验研究, 探讨了稀释剂添加方案、流量以及燃烧器入口宽度对火焰结构的影响规律.实验结果表明,在燃料侧与氧化剂侧 均注入二氧化碳稀释剂,且在两侧流速相同的情况下,火焰结构更均匀;随着燃料与氧化剂流量增大,混合效果 增强;入口宽度越小,混合效果越佳,高氧气浓度下有效防止扩散火焰的形成,获得了当量比为 1.0 的纯氧稳定 火焰.随着氧气浓度的升高,可燃范围增大,且不同入口宽度对可燃范围影响微小.
Abstract:
Oxy-fuel combustion of methane was conducted by using an inherently safe technique of rapidly mixed tubular flame burner,in which the fuel and oxidizer were individually injected from four tangential slits.The influences of carbon dioxide assignment,flow rate and burner inlet width on flame structure were analyzed.The results illustrate that by assigning CO2 to both oxidizer slit and fuel slit so as to maintain the same oxidizer/fuel injection velocity,the flame structure became more uniform.The mixing rate was intensified by increasing the flow rates of fuel and oxidizer.By reducing the inlet width of injection slit,the mixing was intensified,and in addition,the diffusion flame was prohibited under the ultrahigh oxygen mole fraction condition.Therefore,the stoichiometric combustion under pure oxygen condition was achieved.The flammable range at the equivalence ratio expanded with an increase of oxygen mole fraction,and the inlet width merely affected the flammable range.

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备注/Memo

备注/Memo:
收稿日期:2016-05-09. 基金项目:国家自然科学基金资助项目(51676016). 作者简介:朱志强(1991— ),男,硕士研究生,qiancheweixiao@163.com. 通讯作者:石保禄,男,博士,副教授,shibaolu@bit.edu.cn.
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