|本期目录/Table of Contents|

[1]李华,阚双艳,益朋.嵌套式受限空间火灾危险性分析与优化策略研究[J].中国安全生产科学技术,2025,21(10):156-165.[doi:10.11731/j.issn.1673-193x.2025.10.019]
　LI Hua,KAN Shuangyan,YI Peng.Research on fire hazard analysis and optimization strategies for nested confined spaces[J].Journal of Safety Science and Technology,2025,21(10):156-165.[doi:10.11731/j.issn.1673-193x.2025.10.019]
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嵌套式受限空间火灾危险性分析与优化策略研究

《中国安全生产科学技术》[ISSN:1673-193X/CN:11-5335/TB]

卷:
21
期数:
2025年10期
页码:
156-165
栏目:
职业安全卫生管理与技术
出版日期:
2025-10-30

文章信息/Info

Title:
Research on fire hazard analysis and optimization strategies for nested confined spaces
文章编号:
1673-193X(2025)-10-0156-10
作者:
李华; 阚双艳; 益朋
(西安建筑科技大学 资源工程学院，陕西 西安 710055)
Author(s):
LI Hua;  KAN Shuangyan;  YI Peng
(School of Resources Engineering,Xi’an University of Architecture and Technology,Xi’an Shaanxi 710055,China)
关键词:
密室逃脱类场所; 火灾模拟; 火灾荷载; 烟气蔓延; 可用疏散时间
Keywords:
escape room-type venues;  fire simulation;  fire load;  smoke spread;  available evacuation time
分类号:
X932
DOI:
10.11731/j.issn.1673-193x.2025.10.019
文献标志码:
A
摘要:
为深入探究嵌套式受限空间的消防安全性能化设计优化策略，以调研统计密室逃脱类场所火灾荷载密度数据为基础，并通过建立嵌套式密室场所典型火灾模型，提出房门一键开启决策时间模型，分析房门一键开启时间阈值，进而对比分析不同火灾场景下温度、CO体积分数和能见度变化规律。研究结果表明：中央火源位置房门一键开启的决策时间为7.3 s。通过对比纵向与横向蔓延路径，发现横向蔓延可在100 s时封锁疏散通道，可用疏散时间被显著缩短。喷淋设施改造后，温度峰值下降超过270 ℃，CO体积分数峰值下降超过0.1%，出口位置温度和CO体积分数达到临界值的时间被显著延缓。在温度、CO体积分数和能见度等指标分析基础上，提出高灵敏度感烟探测器与一键开启房门联动装置、喷淋与机械排烟协同系统的优化方案，可用疏散时间增幅达到54%。研究结果可为小尺度嵌套式受限空间的消防措施优化设计提供理论支撑。
Abstract:
In order to deeply explore the optimization strategies for performance-based fire safety design of nested confined spaces,this study is grounded on the investigation and statistics of fire load density data in escape room-type venues.By establishing a typical fire model for nested escape room venues,a decision-time model for one-touch door opening is proposed to analyze the time threshold of one-touch door opening.Furthermore,the variation patterns of temperature,CO volume fraction,and visibility are compared and analyzed under different fire scenarios.The results show that the decision-making time for one-touch door opening when the fire source is centrally located is 7.3 s.By comparing vertical and horizontal fire spread paths,it is found that horizontal spread can block evacuation routes at 100 s,significantly shortening the available evacuation time.After retrofitting the sprinkler system,the peak temperature drops by more than 270 ℃,and the peak CO volume fraction decreases by more than 0.1%.The time for temperature and CO volume fraction at the exit position to reach critical thresholds is significantly delayed.Based on the analysis of indicators such as temperature,CO volume fraction,and visibility,an optimization scheme is proposed that links a high-sensitivity smoke detector with a one-touch door opening device,and integrates a collaborative system of sprinklers and mechanical smoke exhaust.This optimization scheme increases the available evacuation time by 54%.The findings provide theoretical support for the optimal design of fire protection measures in small-scale nested confined spaces.

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备注/Memo

备注/Memo:
收稿日期： 2025-07-04
作者简介： 李华，博士，副教授，主要研究方向为企业风险评估与安全管理、公共安全与应急管理。
通信作者： 益朋，硕士，讲师，主要研究方向为安全与应急管理。
更新日期/Last Update: 2025-10-29