作者：陈东东, 张翠平, 张瑞亮

作者单位：太原理工大学车辆工程系, 山西 太原 030024

关键词：防爆柴油机;F-T柴油;DOC;CDPF;排放

摘要：

为研究排气后处理设备对燃用F-T柴油的防爆柴油机性能的影响，以发动机台架试验为平台进行防爆柴油机11工况点试验，对比分析在燃用F-T柴油的防爆柴油机上安装催化型连续性再生颗粒捕集器（DOC+CDPF）前后发动机排放性能的影响。同时进行1 400 r·min^–1和1 800 r·min^–1负荷特性试验，对比分析防爆柴油机燃用0^#柴油和F-T柴油时DOC+CDPF对尾气的转化效率。结果表明：在防爆柴油机加装进排气阻火器和水洗箱的基础上，在11工况点下，使用DOC+CDPF耦合设备时，可使CO、NO_x和PM排放分别平均降低100%、8.5%和81.5%。DOC+CDPF装置能够对燃用F-T柴油的防爆柴油机的排放性能明显改善，但燃用0^#柴油时的NO_x和PM排放降低率比燃用F-T柴油时高。

Effect of DOC+CDPF on emission performance of explosion-proof diesel fuel F-T diesel engine
CHEN Dongdong, ZHANG Cuiping, ZHANG Ruiliang
Department of Vehicle Engineering, Taiyuan University of Technology, Taiyuan 030024, China
Abstract: In order to study the effect of exhaust after-treatment equipment on the performance of explosion-proof diesel engine using F-T diesel fuel, the engine bench test is used as a platform to test the discharge performance of the explosion-proof diesel engine for 11 working conditions. Contrast the performance of the diesel engine with F-T diesel on a catalytic continuous regenerative particle trap (DOC+CDPF) before and after the engine emission performance. At the same time, the load characteristics test of 1 400 r·min^-1 and 1 800 r·min^-1 was carried out, and the conversion efficiency of DOC+CDPF to tail gas when using 0^# diesel and F-T diesel for explosion-proof diesel engine was compared and analyzed. The results show that on the basis of the installation of flame arresters and washing tanks for the explosion-proof diesel engine, when DOC+CDPF coupling equipment is used under the eleven operating conditions, the emission of CO, NO_x and PM can be reduced by 100%, 8.5% and 81.5% respectively. The DOC+CDPF coupling device can significantly improve the emission performance of the explosion-proof diesel engine using F-T diesel. However, the reduction rate of NO_x and PM emissions when burning 0^# diesel is higher than that when burning F-T diesel.
Keywords: explosion-proof diesel engine;F-T diesel;DOC;CDPF;emission
2019, 45(11):143-148  收稿日期: 2018-12-24;收到修改稿日期: 2019-02-26
基金项目: 2018年山西省研究生联合培养基地人才培养项目（2018JD12）
作者简介: 陈东东(1992-),男,山西柳林县人,硕士研究生,专业方向为发动机排放控制技术
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