|本期目录/Table of Contents|

[1]杨军,张金锋,解启航,等.汽车检测线收集的重型柴油车积碳燃爆危险性研究[J].中国安全生产科学技术,2018,14(7):181-186.[doi:10.11731/j.issn.1673-193x.2018.07.027]
 YANG Jun,ZHANG Jinfeng,XIE Qihang,et al.The carbon deposition explosion hazard of heavy diesel vehicle collected by automobile test line[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2018,14(7):181-186.[doi:10.11731/j.issn.1673-193x.2018.07.027]
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汽车检测线收集的重型柴油车积碳燃爆危险性研究
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《中国安全生产科学技术》[ISSN:1673-193X/CN:11-5335/TB]

卷:
14
期数:
2018年7期
页码:
181-186
栏目:
职业安全卫生管理与技术
出版日期:
2018-07-31

文章信息/Info

Title:
The carbon deposition explosion hazard of heavy diesel vehicle collected by automobile test line
文章编号:
1673-193X(2018)-07-0181-06
作者:
杨军1张金锋2解启航2王浩2柳晓凯2李晨曦2
(1.河北省环境监测中心,河北 石家庄 050030;2.河北科技大学 环境科学与工程学院,河北 石家庄 050018)
Author(s):
YANG Jun1 ZHANG Jinfeng2 XIE Qihang2 WANG Hao2 LIU Xiaokai2 LI Chenxi2
(1. Hebei Province Environmental Monitoring Center, Shijiazhuang Hebei 050030, China; 2. School of Environmental Science and Engineering, Hebei University of Science and Technology, Shijiazhuang 050018, China)
关键词:
重型柴油车积碳爆炸危险自燃温度爆炸下限爆炸压力
Keywords:
Heavy diesel vehicle Carbon deposition Explosion hazard Autoignition temperature Lower explosion limit Explosion pressure
分类号:
X932
DOI:
10.11731/j.issn.1673-193x.2018.07.027
文献标志码:
A
摘要:
为有效防控积碳收集和处置环节中积碳颗粒物存在的燃爆危险,对重型柴油机车尾气积碳燃爆危险性进行了研究,测试了积碳的粒度分布、元素组成、自燃温度和热稳定性(TG-DSC)。研究结果表明:积碳粉体爆炸下限在4.0~4.5 g/m3之间,当积碳质量浓度为200 g/m3时,最大爆炸压力为0.56 MPa;当积碳质量浓度为300 g/m3时,最大爆炸压力上升速率为33.79 MPa/s,爆炸指数为9.71 MPa/(m·s-1),分别达到最大值。重型柴油机车尾气积碳爆炸危险为St1级,具有一定的燃爆危险性。
Abstract:
A large number of carbon deposition produced must be collected during the detection process of heavy diesel vehicle. In order to effectively prevent and control the risk of detonation of carbon deposits in the process of carbon collection and disposal, this paper studied the risk explosion of heavyduty diesel engine carbon deposition. The particle size distribution, elemental composition, autoignition temperature, and thermal stability (TG-DSC) of carbon deposition were tested. The carbon deposition D50 is 35.84 μm, the carbon composition is about 63%, the autoignition temperature is 297.2℃, and the maximum exothermic heat release during the combustion process is 3 040 J/g. The test of 20L ball device shows that the lower limit of explosion of carbon deposition dust is between 4.0~4.5 g/m3. When the carbon concentration of carbon is 200 g/m3, the maximum explosion pressure is 0.56 MPa. When the carbon concentration is 300 g/m3, the maximum explosion pressure rise rate is 33.79 MPa·s-1, the explosion index is 9.71 MPa·m·s-1, which reached the maximum values respectively. The results of the study indicate that the risk of carbon deposition explosion is St1, and it has a certain risk of explosion.

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备注/Memo

备注/Memo:
河北省自然科学基金项目(E2017208083);河北省科技计划项目(15275409D)
更新日期/Last Update: 2018-08-09