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柴油机微粒捕集器臭氧再生法离线再生

Keywords: 臭氧,柴油机,微粒捕集器,再生

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Abstract:

由R175型柴油机、微粒捕集器(Φ90mm×150mm)、CF-G10型臭氧发生器组成实验系统,进行了臭氧再生法离线再生研究。研究表明,在190℃温度下,再生气从DPF上游侧进气再生时,臭氧可以有效再生DPF,再生效率可达90%以上,再生效率达到65%左右时发生臭氧穿透,臭氧利用率下降;穿透时间点随微粒捕集时的柴油机载荷增大而提前,随微粒捕集时间增加而提前;臭氧供给量不变,再生气流量越大,再生效果越明显;再生气从DPF下游侧进气再生时,臭氧穿透时间点较上游侧进气再生滞后,但发生穿透后DPF几乎不再再生,总再生效率低于70%。结果表明,微粒捕集器臭氧再生法是可行的,对于如何提高臭氧利用率需进一步研究。

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