| 汽车催化净化器故障分析及结构优化 |
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| 引用本文： | 孙鲁青,安伟,鲍利峰. 汽车催化净化器故障分析及结构优化[J]. 机械设计与制造, 2010, 0(1) |
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| 作者姓名： | 孙鲁青 安伟 鲍利峰 |
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| 作者单位： | 1. 江南大学,机械工程学院,无锡,214122
2. 无锡威孚力达催化净化器有限责任公司,无锡,214028 |
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| 摘 要： | 针对配备于某款2.0发动机的催化净化器在进行耐久试验时所发生的催化剂脱落问题,运用计算流体动力学(CFD)方法分析了该催化净化器的内部流场,解释了问题产生的原因,提出了扩张管及收缩管形状结构的改进方案。计算结果表明:结构优化后的催化净化器可以大大改善气体流动均匀性,进而会提高催化转化效率和催化剂的寿命。
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| 关 键 词： | 催化净化器 计算流体动力学 结构优化 |
Automotive catalytic converter fault analysis and structure optimization |
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| SUN Lu-qing,AN Wei,BAO Li-feng. Automotive catalytic converter fault analysis and structure optimization[J]. Machinery Design & Manufacture, 2010, 0(1) |
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| Authors: | SUN Lu-qing AN Wei BAO Li-feng |
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| Affiliation: | 1 School of Mechanical Engineering/a>;Jiangnan University/a>;Wuxi 214122/a>;China;2 Wuxi Weifu Leader Catalytic Converter CO.LTD/a>;Wuxi 214028/a>;China |
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| Abstract: | Based on the broken of catalyst which happened during durability testing,The flow field in the converter is analyzed using Computational Fluid Dynamics(CFD) technique,the result explained the causes of the problem and put forward a program of optimized structure,especially the parts of expansion and contraction.The results show that:the optimized structure of the catalytic converter can greatly improve the uniformity of gas flow,which can increase the efficiency of catalytic converters and catalyst life. |
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| Keywords: | Catalytic converter CFD Structure optimization |
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