后处理结构对柴油车尿素结晶的影响
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摘要
针对后处理结构对尿素结晶的影响进行研究,提出了混合器与系统管路两个方面的优化措施。通过计算机仿真计算与分析,得出最佳方案,并通过发动机台架试验进行验证,以达到在不做其它优化的条件下,完全消除尿素结晶的目的。
The effect of the after-treatment system on urea crystallization for diesel vehicles was studied.The optimization measures for the mixer and the pipeline were put forward. Through computer simulation and analysis, the best scheme was chosen. The engine bench test was carried out to verify that the proposed optimization scheme can eliminate the urea crystallization completely.
The effect of the after-treatment system on urea crystallization for diesel vehicles was studied.The optimization measures for the mixer and the pipeline were put forward. Through computer simulation and analysis, the best scheme was chosen. The engine bench test was carried out to verify that the proposed optimization scheme can eliminate the urea crystallization completely.
引文
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[2]朱明健,胡振奇,陈霍,等.柴油机SCR尿素结晶研究分析[J].现代车用动力,2017(3):9-13,37.ZHU Mingjian,HU Zhenqi,CHEN Huo,et al.Research on Components of Depositsin SCR System of a Diesel Engine[J].Modern Vehicle Power,2017(3):9-13,37 .(in Chinese)
[3]桑心成.SCR系统尿素结晶结石研究[J].时代农机,2016,43(9):31-33.SANG Xincheng.Research on Selective Catalytic Reduction About Crystal Stones[J].Times Agricultural Machinery,2016,43(9):31-33.(in Chinese)
[4]范青海.浅析柴油车尾气管尿素结晶分析及预防措施[J].汽车实用技术,2015(7):107-109.FAN Qinghai.Analysis of Diesel Vehicle Exhaust Pipe Urea Crystallization and Preventive Measures[J].Automobile Applied Technology,2015(7):107-109.(in Chinese)
[5]胡帅,高延新,孙飞.车用SCR系统尿素结晶影响分析及试验研究[J].汽车实用技术,2017(21):134-136.HU Shuai,GAO Yanxin,SUN Fei.Analysis and Experimental Study on Influencing Factors of Urea Crystallization in Vehicle SCR System[J].Automobile Applied Technology,2017(21):134-136.(in Chinese)
[6]彭芹,王平,叶世超,等.尿素结晶介稳宽度实验研究[J].化工装备技术,2016,37(6):18-21.PENG Qin,WANG Ping,YE Shichao,et al.Research on Metastable Zone Width of Urea Crystallization[J].Chemical Equipment Technology,2016,37(6):18-21.(in Chinese)
[7]苏长春.商用车后处理系统尿素结晶问题研究[J].汽车实用技术,2016(10):223-226.SU Changchun.Commercial Vehicle Post-Processing System of Urea Crystallization Problem Research[J].Automobile Applied Technology,2016(10):223-226.(in Chinese)
[8]史留庆,张翠平.柴油机SCR系统尿素结晶的适应性研究[J].科技创新应用,2014(32):40.SHI Liuqing,ZHANG Cuiping.Adaptability of Urea Crystal in SCR System of Diesel Engine[J].Technology Innovation and Application,2014(32):40.(in Chinese)
[9]薛入义,来鑫,胡静,等.基于抑制SCR尿素结晶的排气管的优化设计[J].农业装备与车辆工程,2017,55(3):25-29.XUE Ruyi,LAI Xin,HU Jing,et al.Optimal Design for Exhaust Pipes Based on Inhibition of SCR Urea Crystals[J].Agricultural Equipment and Vehicle Engineering,2017,55(3):25-29.(in Chinese)
[10]裴庆春,章新伟.SCR尿素热解系统尿素结晶的预防与对策[J].中国环保产业,2012(4):49-52.PEI Qingchun,ZHANG Xinwei.Prevention and Countermeasures of Urea Crystallization in SCR Urea Pyrolysis System[J].China Environmental Protection Industry,2012(4):49-52.(in Chinese)
[11]白凤月,温邦耀,白书战.Urea-SCR系统尿素结晶现象分析及解决方案[J].山东大学学报(工学版),2017,47(4):70-76.BAI Fengyue,WEN Bangyao,BAI Shuzhan.Analysis and Optimization of Urea Deposits Formation in Urea-SCRSystems[J].Journal of Shandong University(Engineering Science),2017,47(4):70-76.(in Chinese)
[12]臧志成,魏家星,卢凯,等.喷嘴集成式SCR混合器设计及数值模拟研究[J].内燃机工程,2017,38(4):103-108.ZANG Zhicheng,WEI Jiaxing,LU Kai,et al.Design and Numerical Simulation of Nozzle Integrated SCRMixer[J].Chinese Internal Combustion Engine Engineering,2017,38(4):103-108.(in Chinese)