不同容积容器内喷气燃料燃爆特性研究

doi:10.16265/j.cnki.issn1003-3033.2022.10.2588

中国安全科学学报 ›› 2022, Vol. 32 ›› Issue (10): 148-153.doi: 10.16265/j.cnki.issn1003-3033.2022.10.2588

不同容积容器内喷气燃料燃爆特性研究

董张强¹(), 王亚威², 刘丽娟¹^,^**(), 陈先锋¹, 杨满江³

¹ 武汉理工大学安全科学与应急管理学院，湖北武汉 430070
² 哈尔滨工程大学航天与建筑工程学院，黑龙江哈尔滨 150001
³ 中国舰船研究设计中心，湖北武汉430064

收稿日期:2022-04-22 修回日期:2022-08-18 出版日期:2022-10-28 发布日期:2023-04-28
通讯作者: 刘丽娟
作者简介:
董张强（1997—），男，江西萍乡人，硕士研究生，主要研究方向为工业防火防爆。E-mail： dzq970220@whut.edu.cn。
陈先锋教授
基金资助:
国家重点研发计划项目(2021YFB4000902); 湖北省安全生产专项资金科技项目(SJZX20211003)

Study on jet fuel explosion characteristics in different volume containers

DONG Zhangqiang¹(), WANG Yawei², LIU Lijuan¹^,^**(), CHEN Xianfeng¹, YANG Manjiang³

¹ School of Safety Science and Emergency Management， Wuhan University of Technology， Wuhan Hubei 430070， China
² College of Aerospace and Civil Engineering， Harbin Engineering University， Harbin Heilongjiang 150001， China
³ China Ship Development and Design Center， Wuhan Hubei 430064， China

Received:2022-04-22 Revised:2022-08-18 Online:2022-10-28 Published:2023-04-28
Contact: LIU Lijuan

摘要/Abstract

摘要：

为提高喷气燃料的安全储存、运输及使用水平，通过试验研究不同质量浓度喷气燃料在不同容积容器内发生燃烧爆炸时，压力、压力上升速率、温度及火焰传播速度的变化特征，利用计算流体力学（CFD）软件模拟喷气燃料火焰结构变化过程，分析容器容积及燃料质量浓度对燃爆特性的影响。结果表明：密闭空间内，喷气燃料发生燃爆后各参数均随质量浓度增大先上升后下降，最大爆炸危害的燃料质量浓度为104.17 g/m³；同时，喷气燃料燃爆产生的压力处处相等，且在等比例容器中，当化学当量比接近1时，喷气燃料最大火焰传播速度、最大压力基本不受容器容积影响，但喷气燃料燃爆造成的最大平均升压速率与容器尺寸呈反比关系；相同时间内，空间越大内部温度越高。

关键词: 容器容积, 喷气燃料, 燃爆特性, 燃料质量浓度, 密闭空间

Abstract:

In order to provide theoretical support for the safe storage， transportation and use level of jet fuel， the variation characteristics of explosion pressure， pressure rise rate， temperature and flame propagation velocity of jet fuel with different mass concentrations in different volume pressure containers were studied experimentally， and the change process of flame structure of jet fuel was simulated by CFD（Computational Fluid Dynamics）explosion simulation software. The effects of container volume and fuel mass concentration on the combustion and explosion characteristics were analyzed. The results show that in the confined space， the explosion parameters of jet fuel first increase and then decrease with the increase of mass concentration， and the fuel mass concentration of the maximum explosion hazard is 104.17 g/m³. At the same time， the pressure generated by the detonation of jet fuel is equal everywhere， and in an equal proportion containers， when the chemical equivalence ratio is close to 1， the maximum flame propagation speed and maximum deflagration pressure of jet fuel are basically not affected by the container volume， but the maximum average pressure rise rate caused by the detonation of jet fuel is inversely proportional to the container size. In the same time， the larger the detonation space， the higher the internal temperature.

Key words: container volume, jet fuel, explosion characteristics, fuel mass concentration, confined space

董张强, 王亚威, 刘丽娟, 陈先锋, 杨满江. 不同容积容器内喷气燃料燃爆特性研究[J]. 中国安全科学学报, 2022, 32(10): 148-153.

DONG Zhangqiang, WANG Yawei, LIU Lijuan, CHEN Xianfeng, YANG Manjiang. Study on jet fuel explosion characteristics in different volume containers[J]. China Safety Science Journal, 2022, 32(10): 148-153.

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理化性质参数	参数值
闭杯闪点/℃	74
密度（20 ℃）/（kg·m^-3）	815
总热值/（MJ·kg^-1）	44.97
净热值/（MJ·kg^-1）	42.95
运动黏度（20 ℃）/（mm²·s^-1）	5.87
十六烷值	38

试验类别	容器注入油量/g		当量比	质量浓度/ （g·m^-3）
试验类别	1 m³	8.9 m³	当量比	质量浓度/ （g·m^-3）
测试试验	100	—	1.01	83.33
测试试验	150	—	1.53	125.00
正式试验	40	300	0.41	29.17
	75	556	0.77	62.50
	100	742	1.01	83.33
	125	927	1.28	104.17
	150	1112	1.53	125.00

不同容积容器内喷气燃料燃爆特性研究

Study on jet fuel explosion characteristics in different volume containers

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