主管：中华人民共和国应急管理部
主办：应急管理部天津消防研究所
ISSN 1009-0029  CN 12-1311/TU
消防科学与技术

消防科学与技术 ›› 2021, Vol. 40 ›› Issue (9): 1341-1344.

• • 上一篇    下一篇

通风对狭长空间电缆火灾影响数值分析

迟 媛，王 纳，马奕炜   

  1. 北京特种工程设计研究院，北京100028
  • 出版日期:2021-09-15 发布日期:2021-09-15
  • 作者简介:迟 媛(1980-)，女，北京人，63921部队工程师，注册公用设备（暖通空调）工程师，硕士，主要从事航天发射场地面设施工程设计及研究，北京市朝阳区左家庄12号院，100028。

Numerical analysis of influence of ventilation on cable fire in long and narrow space

CHI Yuan, WANG Na, MA Yi-wei   

  1. Beijing Special Engineering Design and Research Institute, Beijing 100028， China
  • Online:2021-09-15 Published:2021-09-15

摘要： 为研究狭长空间电缆发生火灾后的热流场特性规律，建立了适用于狭长空间的火灾仿真计算数学模型，对控制方程组进行了变形和离散，并用数值程序求解，得到电缆发生火灾后烟气蔓延特性规律、不同时刻温度场分布以及特征位置温度测点随时间的变化规律，分析了不同位置的火灾特征参数变化的差异性，探讨了通风对火灾热流场的影响。通过分析火灾流场特性变化规律，为狭长空间电缆火灾探测设计及通、排风设计提供参考。

关键词: 通风, 狭长空间, 电缆火灾, 数值模拟

Abstract: In order to study the characteristic law of heat flow field after the cable fire in narrow and long space, the mathematical model of fire simulation calculation suitable for narrow and long space was established. The governing equations were deformed and discretized, and solved by numerical program. The characteristic law of smoke spread after the cable fire, the distribution of temperature field at different time and the temperature measuring point at characteristic position were obtained. The influence of ventilation on fire heat flow field was discussed. The change law of fire flow field characteristics provides references for the design of fire detection and ventilation of long and narrow space.

Key words: ventilation, long and narrow space, cable fire；numerical simulation