东北大学学报（自然科学版）

东北大学学报(自然科学版) ›› 2013, Vol. 34 ›› Issue (3): 360-363.DOI: -

• 材料与冶金 • 上一篇    下一篇

焙烧炉新型燃烧器燃烧特性的数值模拟

冯明杰，王恩刚，赫冀成   

  1. (东北大学材料电磁过程研究教育部重点实验室，辽宁沈阳110819)
  • 收稿日期:2012-10-09 修回日期:2012-10-09 出版日期:2013-03-15 发布日期:2013-01-26
  • 通讯作者: 冯明杰
  • 作者简介:冯明杰(1971-)，男，河南禹州人，东北大学副教授；王恩刚(1962-)，男，辽宁沈阳人，东北大学教授，博士生导师；赫冀成(1943-)，男(满族)，辽宁瓦房店人，东北大学教授，博士生导师.
  • 基金资助:
    国家自然科学基金资助项目(200809123).

Numerical Simulation on Combustion Performance of a New Type Combustor for Baking Furnace

FENG Mingjie， WANG Engang， HE Jicheng   

  1. Key Laboratory of Electromagnetic Processing of Materials， Ministry of Education， Northeastern University， Shenyang 110819， China.
  • Received:2012-10-09 Revised:2012-10-09 Online:2013-03-15 Published:2013-01-26
  • Contact: FENG Mingjie
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摘要： 对一种用于焙烧炉的新型燃烧器的燃烧过程建立了二维旋转轴数值计算模型，采用数值模拟的方法研究了燃气入口速度和喷口与喉部直径比对其燃烧特性的影响.结果表明，燃烧室内最高温度随燃气入口速度增大而升高.当燃气入口速度一定时，随喷口与喉部直径比的增大，火焰形状由梨状变为燕尾状，燃烧室内最高温度先降后升.火焰长度随燃气入口速度的增大而增长，随喷口与喉部直径比的增大而缩短.

关键词: 燃烧器, 温度分布, 燃烧特性, 火焰长度, 焙烧炉

Abstract: The effects of gas inlet velocity and the nozzle and throat diameter ratio on the combustion performance of a new type combustor for baking furnace were studied by a 2dimensional rotation axis numerical models. The results indicated that the highest temperature in the combustion chamber increased with the increase of the gas inlet velocity. When the gas inlet velocity was fixed， with the increase of the nozzle and throat diameter ratio of the combustor， the flame shape changed from the pyriform to the dovetailed shape and the highest temperature decreased at first and then increased gradually. The flame length increased with the increase of the gas inlet velocity and decreased with the increase of the nozzle and throat diameter ratio of the combustion chamber.

Key words: combustors, temperature distribution, combustion performances, flame length, baking furnace

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