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[1]张庆武,蒋军成,喻源,等.容器内气体爆炸带导管泄爆的实验研究[J].南京工业大学学报(自然科学版),2014,36(04):79-83.[doi:10.3969/j.issn.1671-7627.2014.04.015]
 ZHANG Qingwu,JIANG Juncheng,YU Yuan,et al.Experimental study on gas explosion vented by duct in a vessel[J].Journal of NANJING TECH UNIVERSITY(NATURAL SCIENCE EDITION),2014,36(04):79-83.[doi:10.3969/j.issn.1671-7627.2014.04.015]
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容器内气体爆炸带导管泄爆的实验研究()
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《南京工业大学学报(自然科学版)》[ISSN:1671-7627/CN:32-1670/N]

卷:
36
期数:
2014年04期
页码:
79-83
栏目:
出版日期:
2014-07-01

文章信息/Info

Title:
Experimental study on gas explosion vented by duct in a vessel
文章编号:
1671-7627(2014)04-0079-05
作者:
张庆武蒋军成喻源周灿杨进军
南京工业大学 城市建设与安全工程学院,江苏 南京 210009
Author(s):
ZHANG QingwuJIANG JunchengYU YuanZHOU CanYANG Jinjun
College of Urban Construction and Safety Engineering,Nanjing Tech University,Nanjing 210009,China
关键词:
气体爆炸 泄爆导管 爆炸强度 火焰传播速率
Keywords:
gas explosion vent duct explosion severity flame propagation rate
分类号:
TQ086;X932
DOI:
10.3969/j.issn.1671-7627.2014.04.015
文献标志码:
A
摘要:
利用1个球形容器和3节相同尺寸的圆形管道建立了实验系统,并开展相关实验,研究容器内气体爆炸带导管泄爆过程的机制。结果表明:安装泄爆导管增加了容器爆炸强度; 破膜激波使导管入口处压力上升,射流火焰点燃导管入口处未燃气体产生二次爆炸,导致容器内及导管入口处压力突变; 一定范围内,导管长度越长,容器及管道内的压力峰值越大; 有导管存在时,尾部点火容器内的压力峰值及导管入口处的压力峰值都高于中心点火的情况,且尾部点火导管前部分的火焰传播速率高于中心点火的情况; 无论尾部点火还是中心点火导管入口处的压力峰值都高于导管出口处的压力峰值。
Abstract:
To study mechanism of gas explosion vented by duct in a vessel,experiments were carried out in a spherical vessel connected by three circular ducts with the same size.Results showed that the presence of a duct to discharge the explosion products increased explosion severity compared with the situation without a duct. The pressure in duct entrance was raised by vent burst shock wave firstly,and the unburned gas in duct entrance was ignited by jet flames to generate secondary explosion,resulting in a sharp increase in pressures in the vessel and duct entrance.The maximum pressures increased with elongating venting duct within a certain range.The maximum pressure in the vessel and duct entrance, and the flame speed in initial section of duct for rear ignition was larger compared with central ignition.The maximum pressure in duct entrance was higher than that in duct exit for any kinds of ignition position.

参考文献/References:

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相似文献/References:

[1]尤明伟,喻源,蒋军成.内置障碍物连通容器内气体爆炸的火焰传播[J].南京工业大学学报(自然科学版),2011,33(01):90.[doi:10.3969/j.issn.1671-7627.2011.01.018]
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[2]唐平,蒋军成.采用泄爆管泄放气体爆炸的数值模拟[J].南京工业大学学报(自然科学版),2012,34(01):15.
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[4]杨进军,蒋军成,张庆武,等.管道障碍物对连通容器内气体爆炸的影响[J].南京工业大学学报(自然科学版),2014,36(01):83.[doi:10.3969/j.issn.1671-7627.2014.01.015]
 YANG Jinjun,JIANG Juncheng,ZHANG Qingwu,et al.Effects of obstacles in duct on gas explosion in linked vessels[J].Journal of NANJING TECH UNIVERSITY(NATURAL SCIENCE EDITION),2014,36(04):83.[doi:10.3969/j.issn.1671-7627.2014.01.015]

备注/Memo

备注/Memo:
收稿日期:2013-07-19
基金项目:国家自然科学基金(51376088); 江苏省高校自然科学基金(12KJB620001); 江苏省普通高校研究生科研创新计划(CXZZ12-0452)
作者简介:张庆武(1985—),男,江苏盐城人,博士生,主要研究方向为气体爆炸及其防治措施; 蒋军成(联系人),教授,E-mail: jcjiang@njtech.edu.cn..
更新日期/Last Update: 2014-07-31