DPF超声波清洗与高温气体再生技术研究  

Study on ultrasonic cleaning and high temperature gas regeneration of DPF

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)

机构地区：[1]内燃机可靠性国家重点实验室,山东潍坊261061 [2]潍柴动力股份有限公司,山东潍坊261061

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)。

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.

关 键 词：颗粒捕集器 超声波清洗 高温气体再生 碳烟 

分 类 号：TK421.5[动力工程及工程热物理—动力机械及工程]