| 选择性催化还原反应器数值模拟及仿真研究 |
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| 引用本文： | 牛犇,王影.选择性催化还原反应器数值模拟及仿真研究[J].机械工程师,2012(9):66-68. |
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| 作者姓名： | 牛犇 王影 |
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| 作者单位： | 1. 黑龙江省电器仪表设备成套公司,哈尔滨,150040
2. 哈尔滨东安发动机(集团)有限公司,哈尔滨,150066 |
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| 摘 要： | 以柴油机为动力装置排放的氮氧化物是大气的首要污染物,选择性催化还原技术(SCR)是控制氮氧化物的主流技术.文中建立了耦合计算流体动力学和化学动力学的实际柴油机尿素-SCR反应系统的三维数值模型,对SCR系统的内部工作过程进行了模拟仿真.分析各种参数的变化对尿素-SCR系统NOx转化率的影响,为优化尿素SCR反应器的结构指出研究方向,使其在各种环境下,氮氧化物的转化率都能达到比较理想值,以降低氮氧化物的排放,减小对环境的污染和破坏.
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| 关 键 词： | 氮氧化物 柴油机 选择性催化还原 数值模拟 |
Numerical Simulation Research on Selective Catalytic Reduction Reactor |
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| NIU Ben
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WANG Ying.Numerical Simulation Research on Selective Catalytic Reduction Reactor[J].Mechanical Engineer,2012(9):66-68. |
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| Authors: | NIU Ben WANG Ying |
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| Affiliation: | 1.Heilongjiang Electrical Instruments Equipment Completed Co., Ltd., Harbin 150001, China; 2.College of Mechanical Electrical Engineering, Harbin Engineering University, Harbin 150001, China) |
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| Abstract: | Nitrogen oxides is the primary pollutants in atmosphere from the diesel engine, Selective Catalytic Reduction （SCR） is one of the mainstream technology to control nitrogen oxides. This paper established a three-dimensional numerical model of coupled computational fluid dynamics and chemical kinetics of the actual diesel urea-SCR catalytic converter system.simulate the SCR system internal working process. The effect of parameters variation on urea-SCR system NOx conversion rate is analyzed for pointing out the research direction for the optimization of SCR urea reactor structure. Under a variety of environments, the ideal nitrogen oxides conversion rate can he achieved. The research results can reduce nitrogen oxide emissions, environmental pollution and destruction. |
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| Keywords: | nitrogen oxides diesel engine selective catalytic reduction numerical simulation |
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