摘要
研究超声波清洗与高温气体再生技术对柴油颗粒捕集器(diesel particulate filter,DPF)性能的影响,制定试验方法与策略,对不同规格DPF进行超声波清洗与高温气体再生试验。背压试验发现,超声波清洗后DPF压降增加2.7%,高温气体再生处理后压降增加4.3%;超声波清洗处理与高温气体再生处理DPF的起燃温度最大降幅为1.9%。活性试验发现,400℃时2种处理方法的最大转化率降低1.6%。经过上述2种方法处理后的DPF背压与合成气体台架试验中载体涂层活性变化均在5%以内,无明显差异。
In order to verify the effect of ultrasonic cleaning and high-temperature gas regeneration DPF technology,different specifications of DPFs are tested.Pressure drop is increased by 2.7%after ultrasonic cleaning,and increased by 4.3%after high temperature gas regeneration.The maximum reduction of light off activation characteristic after ultrasonic cleaning and high temperature gas regeneration is 1.9%,and the maximum conversion rate is decreased by 1.6%at 400℃.The results show that there is no significant impact on DPF pressure drop value and SGB activity after ultrasonic cleaning and high temperature gas regeneration treatment.
作者
邵清
袁彬
翟浩
李晓辉
王文全
SHAO Qing;YUAN Bin;ZHAI Hao;LI Xiaohui;WANG Wenquan(State Key Laboratory of Engine Reliability, Weifang 261061, China;Weichai Power Co. , Ltd. , Weifang 261061, China)
出处
《内燃机与动力装置》
2020年第5期88-92,共5页
Internal Combustion Engine & Powerplant
基金
国家重点研发计划项目(2017YFC0211304)。
