邵清1,2，袁彬1,2，翟浩1,2，李晓辉1,2，王文全1,2
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
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。
关键词：颗粒捕集器；超声波清洗；高温气体再生；碳烟
Abstract:In order to verify the effect of ultrasonic cleaning and hightemperature gas regeneration DPF technology, different specifications of DPFs are tested. Pressure drop is increased by 27% after ultrasonic cleaning, and increased by 43% after high temperature gas regeneration. The maximum reduction of light off activation characteristic after ultrasonic cleaning and high temperature gas regeneration is 19%, and the maximum conversion rate is decreased by 16% 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.
Keywords:DPF; ultrasonic cleaning; hightemperature gas regeneration; soot
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