| 农用柴油机后处理装置快速老化方法 |
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| 引用本文： | 石运刚,李凯,贾建丽,张诗海.农用柴油机后处理装置快速老化方法[J].农业工程,2021,11(4):100-105. |
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| 作者姓名： | 石运刚 李凯 贾建丽 张诗海 |
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| 作者单位： | 1.中国矿业大学（北京），北京100083；中国环境科学研究院国家环境保护机动车污染控制与模拟重点实验室，北京100012 |
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| 基金项目： | 国家重点研发计划项目（2017YFC0211205） |
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| 摘 要： | 使用掺入机油的柴油作为农用柴油机燃料，采用高负荷运行工况，以实现快速模拟机油大量消耗情况灰分所造成的影响加速老化过程，研究一种简单高效的柴油机氧化催化器（diesel oxidation catalysts，DOC）、柴油机颗粒物过滤器（diesel particulate filter，DPF）快速老化方法，缩短DOC、DPF的耐久性测试和评价周期。设置对照试验组，通过对比分析DOC、DPF的净化效率和劣化率，并结合扫描电镜、能谱分析对DOC、DPF的内部通道及元素组成进行表征分析。结果表明，该方法能够加速劣化DOC和DPF，实现DOC、DPF的快速老化，缩短DOC和DPF的耐久性性能测试和评价周期，大大降低测试成本。
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| 关 键 词： | 柴油机 快速老化 DOC DPF 后处理装置 |
| 收稿时间： | 2020/12/2 0:00:00 |
| 修稿时间： | 2020/12/2 0:00:00 |
Rapid Aging Method of Agricultural Diesel Engine Reprocessing Unit |
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| Abstract: | Diesel oil mixed with engine oil was used as fuel of agricultural diesel engine，and high load operation condition was adopted to quickly simulate influence of large amount of engine oil consumption and accelerate aging process caused by ash.A simple and efficient fast aging method of diesel oxidation catalysts（DOC）and diesel particulate filter（DPF）was studied，which shortened durability test and evaluation cycle of DOC and DPF.A control test group was set up，and purification efficiency and degradation rate of DOC and DPF were compared.And internal channels and element composition of DOC and DPF were characterized and analyzed in combination with SEM and energy spectrum analysis.Results showed that this method could accelerate degradation of DOC and DPF，realize rapid aging of DOC and DPF，shorten durability test and evaluation cycle of DOC and DPF，and greatly reduce test cost. |
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