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[1]张剑军,任畅,梁天水,等.煤气化封闭框架内可燃气与煤尘泄漏事故分析与防治对策[J].中国安全生产科学技术,2013,9(1):119-123.
 ZHANG Jian jun,REN Chang,LIANG Tian shui,et al.Analysis and countermeasures for combustible gas and coal dust leakage accident in coal gasification closed frame[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2013,9(1):119-123.
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煤气化封闭框架内可燃气与煤尘泄漏事故分析与防治对策
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《中国安全生产科学技术》[ISSN:1673-193X/CN:11-5335/TB]

卷:
9
期数:
2013年1期
页码:
119-123
栏目:
职业安全卫生管理与技术
出版日期:
2013-01-31

文章信息/Info

Title:
Analysis and countermeasures for combustible gas and coal dust leakage accident in coal gasification closed frame
文章编号:
1673-193X(2013)-01-0119-05
作者:
张剑军1任畅1梁天水2肖修昆3
(1 重庆消防总队, 重庆〓401121;2.中国科学技术大学 火灾科学国家重点实验室,安徽 合肥〓2300274;3.广州中国科学院 工业技术研究院,广东 广州〓511458)
Author(s):
ZHANG Jian jun1REN Chang2 LIANG Tian shui3 XIAO Xiu kun4
(1.Chongqing General Fire Brigade, Chongqing Jiangsu 401121, China;2.State Key Laboratory of Fire Science, University of Science and Technology of China, Hefei Anhui 230027, China;3 Institute of Industry Technology, Guangzhou & Chinese Academy of Science, Guangzhou Guangdong 511458, China)
关键词:
煤化工 泄漏 事故分析
Keywords:
coal chemical leakage accident simulation
分类号:
X932; TQ545
DOI:
-
文献标志码:
A
摘要:
针对煤气化框架内可燃气泄漏事故及其可能造成的严重后果,基于建筑火灾中“性能化”防火设计思路,设定了煤气化框架敞开与封闭设计下火灾场景,结合可燃气体泄漏的浓度分布机理,分析了煤气化框架敞开与封闭设计对易燃混合气浓度影响的机理,提出采取改进通风等综合措施降低火灾爆炸危险性。通过对典型情况下可燃气与煤尘泄漏规律的仿真分析,结果表明,增加通风口密度、适当调整通风强度可以降低泄漏期间的可燃气体聚集浓度,显著降低危险性,提高了煤气化封闭框架内建筑防火安全性。
Abstract:
Aiming at the combustible gas leakage accident and its serious consequence in coal gasification frame using performancebased fire protection design in building fire for reference, the scenes for leakage of combustible gas and coal dust in the coal gasification frame construction space were reconstructed by CFD model. Several typical simulation were conducted and studied. Through the comparison of results, it was found that, applying natural draft under enough wind speed, closed design for frame construction showed sufficient safety level to decrease the probability of leakage gas explosion. However, open design of frame construction is much better for safety concerns. In order to make up the inadequacy of natural ventilation, mechanicaltype exhauster should be set for backup. Local mechanical ventilation devices are recommended for where the combustible gas concentration will accumulate.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2012-07-16
作者简介:张剑军,工程师。
更新日期/Last Update: 2013-01-31