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[1]张印,赵东风,刘义.基于FLACS的CH4/CO2/air混合气爆炸参数分析[J].中国安全生产科学技术,2016,12(9):36-40.[doi:10.11731/j.issn.1673-193x.2016.09.006]
　ZHANG Yin,ZHAO Dongfeng,LIU Yi.Analysis on explosion parameters of CH4/CO2/air mixed gas based on FLACS[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2016,12(9):36-40.[doi:10.11731/j.issn.1673-193x.2016.09.006]
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基于FLACS的CH4/CO2/air混合气爆炸参数分析
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《中国安全生产科学技术》[ISSN:1673-193X/CN:11-5335/TB]

卷:
12
期数:
2016年9期
页码:
36-40
栏目:
学术论著
出版日期:
2016-09-30

文章信息/Info

Title:
Analysis on explosion parameters of CH4/CO2/air mixed gas based on FLACS
文章编号:
1673-193X(2016)-09-0036-05
作者:
张印1; 赵东风2; 刘义2
（1.中国石油大学（华东） 机电工程学院，山东 青岛 266580；2.中国石油大学（华东） 化学工程学院，山东 青岛 266580）
Author(s):
ZHANG Yin1;  ZHAO Dongfeng2;  LIU Yi2
(1. College of Mechanical and Electrical Engineering, China University of Petroleum, Qingdao Shandong 266580, China;2. College of Chemical Engineering, China University of Petroleum, Qingdao Shandong 266580, China)
关键词:
FLACS; 爆炸温度; 最大爆炸压力; 混合气; 甲烷
Keywords:
FLACS;  explosion temperature;  maximum explosion pressure;  mixed gas;  methane
分类号:
X932
DOI:
10.11731/j.issn.1673-193x.2016.09.006
文献标志码:
A
摘要:
利用FLACS软件分析初始压力、初始温度对CH4/CO2/air混合气的爆炸温度、最大爆炸压力的影响；并与计算值对比。结果表明：①初始压力对爆炸温度、爆炸前后压力比影响可以忽略。常温变压条件下二氧化碳浓度增加，爆炸温度与爆炸前后压力比基本呈线性降低。常压变温条件较复杂，二氧化碳浓度升高爆炸温度降低；初始温度对低浓度（<15%）二氧化碳混合气爆炸温度几乎没有影响，而高浓度（>15%）二氧化碳混合气爆炸温度随初始温度增加而升高；最大爆炸压力随二氧化碳浓度以及温度升高而降低。②在设定条件下，低浓度（5%~10%）二氧化碳混合气爆炸温度计算值与模拟值相对误差小于5.5%，吻合较好；最大爆炸压力计算值与模拟值相对误差在6.5%～10.5%之间。
Abstract:
FLACS software was used to analyze the influence of initial pressure and initial temperature on the explosion temperature and the maximum explosion pressure of CH4/CO2/air mixed gas, and the results were compared with the calculation values. It showed that the influence of initial pressure on the explosion temperature and the rate of pressure before and after explosion can be ignored. Under the conditions of normal temperature and different pressure, with the increasing concentration of carbon dioxide, the explosion temperature and the rate of pressure before and after explosion reduce linearly. The situation under the conditions of normal pressure and different temperature is more complex, with the increasing concentration of carbon dioxide, the explosion temperature reduces. The initial temperature has almost no effect on the explosion temperature of mixed gas with low concentration (less than or equal to 15%) of carbon dioxide, while the explosion temperature of mixed gas with high concentration (higher than 15%) of carbon dioxide increases with the increase of initial temperature. The maximum explosion pressure decreases with the increase of carbon dioxide concentration and temperature. Under the setting conditions, the relative error of calculation value and simulation value for the explosion temperature of mixed gas with low concentration of carbon dioxide is less than 5.5%, which is in good agreement. The relative error of calculation value and simulation value for the maximum explosion pressure is between 6.5%-10.5%.

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备注/Memo

备注/Memo:
收稿日期：2016-06-06
作者简介：张印，硕士研究生。
更新日期/Last Update: 2016-12-08