Optimization analysis of air duct swirl burner based on CFD

WANG Songqing; CHEN Ying; SUN Renquan; LI Feng; HUANG Xiaoming

doi:10.19666/j.rlfd.202109200

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Optimization analysis of air duct swirl burner based on CFD

Thermal Power Generation Vol. 51, Issue 4, Pages: 166-172(2022)

更新时间：2025-09-28

- Optimization analysis of air duct swirl burner based on CFD
- 作者机构：
  
  1. 苏州先机动力科技有限公司
  2. 安德森热能科技(苏州)有限公司
  3. 华中科技大学能源与动力工程学院
- 作者简介：
- 基金信息：
- DOI：10.19666/j.rlfd.202109200
  CLC： TK223.23
- Published：2022
- 稿件说明：
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WANG Songqing, CHEN Ying, SUN Renquan, et al. Optimization analysis of air duct swirl burner based on CFD[J]. Thermal Power Generation, 2022, 51(4): 166-172.
DOI：

WANG Songqing, CHEN Ying, SUN Renquan, et al. Optimization analysis of air duct swirl burner based on CFD[J]. Thermal Power Generation, 2022, 51(4): 166-172. DOI： 10.19666/j.rlfd.202109200.

摘要

基于计算流体动力学理论（CFD），对某型风道旋流燃烧器进行了数值仿真计算，主要分析了有无助燃风道导流板对该型燃烧器的流场分布和排放污染物质量浓度的影响，以及不同的燃烧温度对尾气中污染物质量浓度影响，并与实际试验燃烧的测点数值进行对比。结果表明：模拟计算的CO质量浓度值与同工况下的试验结果相近，仿真结果具备工程参考价值；增加导流板后风道流场分布得到了明显的改善，燃烧效率显著提高，尾气中CO质量分数降低了约18.83%；通过比较不同温度下的燃烧产物质量浓度，可以发现该型风道燃烧器在1 800～1 900℃的燃烧温度区间内，尾气中NO和CO的质量浓度都达到了最佳可控范围。

Abstract

Based on the theory of computational fluid dynamics(CFD)

numerical simulation on a swirl burner in air duct is carried out. The flow field distribution and pollutant mass concentration of the burner with and without combustion air duct guiding plates are analyzed. The influence of different combustion temperatures on the pollutant mass concentration is investigated. Moreover

the simulation results are compared with the field data. The results show that

the simulation CO mass concentration is close to the experimental value under the same condition. The simulation result has engineering reference value. After installing the guiding plate

the flow field distribution in the air duct is improved dramatically

and the combustion efficiency increases significantly. The CO mass fraction in the exhaust gas drops by 18.83%. Comparison of mass concentrations of the combustion products at different temperatures shows that

by using the burner with guiding plate

the mass concentration of NO and CO in the exhaust gas reaches the optimum controllable range when the combustion temperature is 1 800～1 900 ℃.

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