|本期目录/Table of Contents|

[1]马瑞,张有智,周春波.多孔球形材料阻火抑爆性能影响因素数值模拟研究[J].中国安全生产科学技术,2019,15(7):32-38.[doi:10.11731/j.issn.1673-193x.2019.07.005]
 MA Rui,ZHANG Youzhi,ZHOU Chunbo.Numerical simulation study on influencing factors of fire resistance and explosion suppression performance of porous spherical materials[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2019,15(7):32-38.[doi:10.11731/j.issn.1673-193x.2019.07.005]
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多孔球形材料阻火抑爆性能影响因素数值模拟研究
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《中国安全生产科学技术》[ISSN:1673-193X/CN:11-5335/TB]

卷:
15
期数:
2019年7期
页码:
32-38
栏目:
学术论著
出版日期:
2019-07-31

文章信息/Info

Title:
Numerical simulation study on influencing factors of fire resistance and explosion suppression performance of porous spherical materials
文章编号:
1673-193X(2019)-07-0032-07
作者:
马瑞1张有智1周春波2
(1.火箭军工程大学,陕西 西安 710025;
2.火箭军士官学校,山东 青州 262500)
Author(s):
MA Rui1 ZHANG Youzhi1 ZHOU Chunbo2
(1. Rocket Force University of Engineering, Xi’an Shaanxi 710025, China;
2. Rocket Sergeants School, Qingzhou Shandong 262500, China)
关键词:
多孔球形材料阻火抑爆性能爆燃超压预混燃烧数值模拟
Keywords:
porous spherical material fire resistance and explosion suppression performance deflagration overpressure premixed combustion numerical simulation
分类号:
X932
DOI:
10.11731/j.issn.1673-193x.2019.07.005
文献标志码:
A
摘要:
为探究影响多孔球形材料阻火抑爆性能的主要因素,采用气体爆炸模拟软件FLACS建立多孔球形结构中湍流燃烧模型,对填充多孔球形材料后丙烷/空气预混气体燃烧爆炸过程进行数值模拟。研究结果表明:多孔球形材料能够有效衰减爆燃压力波、阻隔火焰传播,起到阻火抑爆作用,且压力波衰减程度和火焰阻隔效果与多孔球形材料的尺寸、孔径及填充密度密切相关。当多孔球形材料的直径为25 mm、孔径为3 mm、填充密度为20层时,压力波衰减程度最大,火焰阻隔效果最明显,说明直径和孔径越小,填充密度越大,材料的阻火抑爆性能越强。
Abstract:
In order to explore the main factors affecting the fire resistance and explosion suppression perfornmance of porous spherical materials, a model of turbulent combustion in the porous spherical structure was established by using the gas explosion simulation software FLACS, and the numerical simulation was conducted on the propane/air premixed gas combustion and explosion process after filling the porous spherical material. The results show that the porous spherical material could effectively attenuate the deflagration pressure wave and block the flame propagation, and played the role of fire resistance and explosion suppression. The degree of pressure wave attenuation and flame blocking effect were closely related to the size, pore size and filling density of the porous spherical material. When the porous spherical material had the diameter of 2.5 cm, the pore diameter of 3 mm and the filling density of 20 layers, the degree of pressure wave attenuation was the largest, and the flame blocking effect was the most obvious, which indicated that the smaller the diameter and pore diameter and the larger the filling density, the stronger the fire resistance and explosion suppression performance of porous material.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期: 2019-05-09;数字出版日期: 2019-07-30
作者简介: 马瑞,硕士研究生,主要研究方向为阻隔防爆技术。
通信作者: 张有智,教授,主要研究方向为阻隔防爆技术。
更新日期/Last Update: 2019-08-07