抑爆高闪点喷气燃料的抑爆特性

李俊; 鲁长波; 安高军; 熊春华; 解立峰

doi:10.11858/gywlxb.2017.03.016

抑爆高闪点喷气燃料的抑爆特性

doi: 10.11858/gywlxb.2017.03.016

李俊^{1, 2,},
鲁长波^2,*, ,,
安高军²,
熊春华²,
解立峰¹

1.
南京理工大学化工学院, 江苏南京 210094
2.
中国人民解放军总后勤部油料研究所, 北京 102300

基金项目:

科技部国际合作重大专项资助项目 2013DFR60080

详细信息

作者简介:
李俊(1992—), 男, 硕士研究生, 主要从事燃烧、爆炸、爆轰及其作用机理研究.E-mail:cczulijun@163.com

通讯作者:
鲁长波(1975—), 男, 博士, 高级工程师, 主要从事军用燃料研究.E-mail:18600209811@vip.163.com

中图分类号: O389;X932
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出版历程
- 收稿日期: 2016-06-15
- 修回日期: 2016-09-23

Explosion Suppression Characteristics of Explosion-SuppressiveHigh Flash-Point Jet Fuel

LI Jun^{1, 2
,},
LU Chang-Bo^{2,*
, ,},
AN Gao-Jun²,
XIONG Chun-Hua²,
XIE Li-Feng¹

1.
School of Chemical Engineering, Nanjing University of Scienceand Technology, Nanjing 210094, China
2.
Beijing POL Research Institute, Beijing 102300, China

摘要

摘要: 配制了含有不同比例抑爆剂的抑爆高闪点喷气燃料, 利用液体燃料燃爆性能评价装置测得油样在0.343、0.687、1.030、1.373和1.717 MPa喷雾压力条件下的爆炸参数。结果表明:喷雾压力越高, 油样燃烧爆炸越充分; 油样中的抑爆剂含量越高, 抑爆性能越好。进一步利用马尔文实时喷雾粒度分析仪研究了在喷雾压力为1.717 MPa时油样雾滴的粒径分布情况。根据实验结果, 给出了油样雾化性能和抑爆效果的内在联系, 并对抑爆高闪点喷气燃料的抑爆机理做出了解释。
- 高闪点喷气燃料 /
- 抑爆 /
- 雾化 /
- 机理
Abstract: In this work high flash-point jet fuel containing different proportions of explosion-suppressive material, called as explosion-suppressive high flash-point jet fuel, was prepared.The liquid fuel combustion and explosion performance evaluation devices were used to measure the explosion parameters of the fuel under different conditions of the spray pressures in the range of 0.343, 0.687, 1.030, 1.373 and 1.717 MPa.The results from the experiment show that the explosion will be more sufficient with the increase of the spray pressure, and the explosion-suppressive capability of the high flash-point jet fuel becomes stronger as the content of the explosion-suppressive material proportion increases.Further, to study the internal relationship between the atomization property and the explosion-suppressive characteristics, the droplet size distribution under the spray pressure of 1.717 MPa was measured using the Malvern particle size analyzer.Based on the above research results, the explosion-suppressive mechanism of the explosion-suppressive high flash-point jet fuel was discussed in detail.
- high flash-point jet fuel /
- explosion suppression /
- atomization /
- mechanism

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图 1 20 L爆炸球结构示意图

Figure 1. Schematic of 20 L explosion vessel

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图 2 油样的爆炸压力时间变化曲线

Figure 2. Explosion pressure-time curves of different oil samples

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图 3 喷雾粒径测试系统结构

Figure 3. Structure diagram of spay particle size measurement system

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图 4 不同粒径的液滴对光线的衍射

Figure 4. Diffraction of light by droplets with different sizes

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图 5 抑爆剂的质量分数为(a) 0、(b) 0.2%、(c) 0.4%、(d) 0.5%时液滴的粒径分布情况

Figure 5. Droplet size distribution when mass fractions of the explosion-suppressive material are (a) 0, (b) 0.2%, (c) 0.4%, (d) 0.5%, repectively

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表 1 不同油样的基本理化特性

Table 1. Main physical and chemical properties of the fuel

Mass fraction/(%)	ν/(mm²/s)	T_f/(℃)	σ/(mN/m)
0	2.140	73	25.373
0.2	7.078	70	25.387
0.4	16.295	68	25.521
0.5	27.800	67	25.566

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表 2 约束条件下不同油样的爆炸参数

Table 2. Explosion parameters of oil samples under constraint conditions

Mass fraction/(%)	p_spray/(MPa)	p_m/(MPa)	τ/(MPa/s)	T_m/(K)	p_m/(MPa)
0	0.343	0.491	3.401	461.7	0.520 4
	0.687	0.500	4.488	464.1
	1.030	0.524	4.495	470.3
	1.373	0.535	5.358	473.1
	1.717	0.552	5.412	477.4
0.2	0.343	0.185	0.503	349.3	0.366 6
	0.687	0.308	1.885	404.1
	1.030	0.420	2.244	441.5
	1.373	0.447	2.281	449.4
	1.717	0.473	2.442	456.8
0.4	0.343	0.169	0.456	340.4	0.316 2
	0.687	0.322	0.881	409.2
	1.030	0.351	0.996	419.4
	1.373	0.360	1.163	422.5
	1.717	0.379	1.721	428.7
0.5	0.343	0.131	0.453	316.5	0.261 0
	0.687	0.202	0.437	358.2
	1.030	0.263	0.754	386.2
	1.373	0.345	1.072	417.4
	1.717	0.364	1.115	423.8

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表 3 喷雾压力为1.717 MPa时液滴的粒径分布

Table 3. Droplet size distribution when the spray pressure is 1.717 MPa

Mass fraction/(%)	D_V10/(μm)	D_V50/(μm)	D_V90/(μm)	D_[3,2]/(μm)	D_[4,3]/(μm)
0	5.8	19.7	581.6	13.1	125.3
0.2	78.2	401.3	737.8	101.9	408.1
0.4	112.6	459.0	770.7	141.0	458.7
0.5	376.6	591.9	779.2	195.7	569.8

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