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[1]曾祥敏,张玉刚,蒋榕培,等.N2O/C2H4/CO2预混气体火焰传播及爆炸特性的试验研究[J].火炸药学报,2018,41(5):501-505.[doi:10.14077/j.issn.1007-7812.2018.05.014]
 ZENG Xiang-min,ZHANG Yu-gang,JIANG Rong-pei,et al.Experimental Investigation of Flame Propagation and Explosion Properties of Premixed Gases N2O/C2H4/CO2[J].,2018,41(5):501-505.[doi:10.14077/j.issn.1007-7812.2018.05.014]
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N2O/C2H4/CO2预混气体火焰传播及爆炸特性的试验研究()
     
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《火炸药学报》[ISSN:1007-7812/CN:61-1310/TJ]

卷:
41卷
期数:
2018年第5期
页码:
501-505
栏目:
出版日期:
2018-10-31

文章信息/Info

Title:
Experimental Investigation of Flame Propagation and Explosion Properties of Premixed Gases N2O/C2H4/CO2
作者:
曾祥敏 张玉刚 蒋榕培 李智鹏 徐森 李玉艳 刘大斌
1. 南京理工大学化工学院, 江苏 南京 210094;
2. 徐州市公安局, 江苏 徐州 221000;
3. 北京航天试验研究所, 北京 100074;
4. 国家民用爆破器材质量监督检验中心, 江苏 南京 210094
Author(s):
ZENG Xiang-min ZHANG Yu-gang JIANG Rong-pei LI Zhi-peng XU Sen LI Yu-yan LIU Da-bin
1. School of Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China;
2. Xuzhou Public Security Bureau, Xuzhou Jiangsu 221000, China;
3. Beijing Institute of Aerospace Testing Technology, Beijing 100074, China;
4. National Quality Supervision and Inspection Center for Industrial Explosive Materials, Nanjing 210094, China
关键词:
氧化亚氮燃烧火焰传播爆燃转爆轰爆轰波N2O/C2H4/CO2预混气体N2O基推进剂
Keywords:
nitrous oxidecombustionflame propagationdeflagration to detonation:detonation waveN2O/C2H4/CO2premixed gasN2O-based propellant
分类号:
TJ55;O643.2
DOI:
10.14077/j.issn.1007-7812.2018.05.014
文献标志码:
-
摘要:
为了研究N2O/C2H4/CO2预混气体的火焰传播及爆炸特性,采用内含螺旋加速环,长200 cm、内径1.5 cm的有机玻璃管装置,用电阻丝点火的方式进行预混气体的燃烧爆炸试验;利用压力传感器测量爆炸压力和爆轰速度,并利用高速摄影仪测量燃烧时的火焰速度;采用C-J理论计算了预混气体的理论爆速和理论爆压。结果表明,预混气体在燃烧管内快速燃烧,火焰呈对称的Tulip结构,最大火焰速度为2 235.2 m/s;除距离点火10 cm处外,其余7个传感器压力陡然上升,均出现冲击波,其中100 cm处的压力峰值最大为4.66 MPa,冲击波的最大速度为2 247 m/s;C-J理论爆速为2 366.75 m/s,理论爆压为4.26 MPa,最大火焰速度和最大冲击波速度与C-J理论爆轰速度的偏差分别为5.54%和5.06%,试验结果与理论值基本一致。
Abstract:
To study the flame propagation and explosion characteristics of premixed gases N2O/C2H4/CO2, the organic glass tube device with a spiral accelerating ring, length of 200 cm and inner diameter of 1.5cm was used to conduct the combustion and explosion experiments of premixed gases by means of resistance wire ignition. The pressure sensors were used to measure the explosion pressure and detonation velocity and high-speed camera was used to measure the flame speed during combustion. The theoretical detonation velocity and theoretical detonation pressure of premixed gas were calculated by C-J theory. Results show that premixed gas rapidly burns in the combustion tube and the flame has a symmetrical Tulip structure, the maximum flame speed is 2 235.2 m/s. Except at 10cm from ignition, the pressure of other seven sensors increases suddenly and all of them present shock wave,in which, the maximum peak pressure at 100 cm is 4.66 MPa.and the maximum velocity of shock wave is 2 247 m/s. The theoretical detonation velocity of C-J is 2 366.75 m/s and the theoretical detonation pressure is 4.26 MPa, the deviations of the maximum flame speed and maximum shock wave velocity with theoretical detonation velocity of C-J are 5.54% and 5.1%, respectively. The experimental results are basically consistent with the theoretical values.

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备注/Memo

备注/Memo:
收稿日期:2018-04-18;改回日期:2018-06-24。
基金项目:武器装备探索研究项目(No.7131549)
作者简介:曾祥敏(1993-),男,硕士研究生,从事推进剂安全性研究。E-mail:zengxm_144@163.com
通讯作者:徐森(1981-),男,博士,副教授,从事含能材料安全性研究。E-mail:xusen@njust.edu.cn
更新日期/Last Update: 1900-01-01