摘要
目前排放法规越来越严苛,这对柴油机后处理中各催化剂的性能要求也越来越高,不同的进气结构中气流的走向不一样,为保证后处理催化剂端面的气流的均匀分布,这就导致不同进气结构对扰流装置的需求也不一致。后处理进气端速度较大,进气端气流的均匀性直接影响DOC催化剂的性能,通过计算流体动力学对进气端的扰流装置进行分析验证,根据分析结果不断优化扰流装置,从而得出最优设计方案。
At present,the emission regulations are more and more stringent,which has higher and higher requirements for the performance of the catalysts in the diesel engine post-treatment.In order to ensure the uniform distribution of the air flow on the end face of the post-treatment catalyst,this leads to different intake structures of turbulence device requirements are not consistent.After processing,the inlet end velocity is large,and the uniformity of the air flow at the inlet end directly affects the performance of DOC catalyst.The turbulence device at the inlet end is analyzed and verified by computational fluid dynamics,and the turbulence device is continuously optimized according to the analysis results,so as to obtain the optimal design scheme.
作者
胡义伍
宋志良
王许华
刘屹
汪俊
房涛
曹君
Hu Yi-wu;Song Zhi-liang;Wang Xu-hua;Liu Yi;Wang Jun;Fang Tao;Cao Jun(Anhui ActBlue Environmental Protection Co.,LTD.,Chizhou 247100,Anhui,China)
出处
《内燃机与配件》
2022年第7期9-11,共3页
Internal Combustion Engine & Parts
关键词
柴油机
后处理
扰流装置
催化剂
均匀性
直通式
侧进式
Diesel engine
Post-processing
Turbulence device
The catalyst
Uniformity
Straight through
Side in type
