首页|双燃烧器正对布置燃烧特性数值模拟研究

双燃烧器正对布置燃烧特性数值模拟研究

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为了探究燃烧器布置方式对燃烧特性的影响,对双燃烧器正对布置方式进行建模,模拟了其在不同过剩系数下的燃烧情况,着重分析了炉膛内的速度分布,温度分布以及出口 NOx,并与单体燃烧器的结果进行对比.结果表明:双燃烧器正对布置时,从燃烧器喷出的气体在炉膛中心相遇后会相互错开进入对置燃烧器的一侧进行燃烧,而且宽度方向上这一特征更加明显,所以此时燃烧器温度场呈中心对称分布,而且高度方向的温差小于宽度方向上的温差;双燃烧器和单体燃烧器的NO,随过剩系数的变化趋势相同,但是双燃烧器的NO,生成量大于单体燃烧器,两者相差1.6倍.
Numerical Simulation Study on Combustion Characteristics of Double Burner with Opposite Arrangement
In order to explore the combustion characteristics when dual burners work together,the most widely used positive arrangement in the actual heating furnace is modeled,and its combustion conditions under different excess coefficients are simulated.The velocity distribution,temperature distribution and outlet NOx in the furnace are emphatically analyzed.The results show that when the double burners are arranged in the opposite direction,the gas ejected from the burners will stagger each other and enter the opposite burner side for combustion after meet-ing in the furnace center,and this feature is more obvious in the width direction,so the temperature field of the burners is distributed symmet-rically in the center,and the temperature difference in the height direction is smaller than that in the width direction.The change trend of NOx of dual burner and single burner with excess coefficient is the same,but the NOx generation of dual burner is 1.6 times greater than that of sin-gle burner.

heating furnaceheating billetone to one modelingheating processnumerical simulation

谢进明、郝兆龙、薄守石、郝婷婷

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北京瑞晨航宇能源科技有限公司,北京 100191

中国石油大学(华东)化学化工学院,山东 青岛 266580

大连理工大学 化工学院化学工程系,辽宁 大连 116024

双燃烧器 正对布置 过剩系数 数值模拟

2024

工业加热
西安电炉研究所有限公司

工业加热

CSTPCD
影响因子:0.257
ISSN:1002-1639
年,卷(期):2024.53(5)
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