中国电力2017，Vol.50Issue(6)：113-119,7.DOI:10.11930/j.issn.1004-9649.2017.06.113.07
电力电缆隧道机械通风防护技术研究
Numerical Study of Protection Strategy by Using Mechanical Ventilation in Electric Cable Tunnel Fires
摘要
Abstract
The large eddy simulation was adopted in this study,to inveterate the protection strategy by using mechanical ventilation in electric cable tunnel fires.The results indicated that appropriate longitudinal ventilation could return the fire environment of ventilated side of the tunnel to the initial level,to make it suitable for firefighters to enter the scene to put out the fire.A transverse tunnel ventilation is conducive to decrease the overall tunnel fire risk greatly,and is suitable for protection of tunnel structure and equipment,when the firefighters could not reach the fire.In addition,it was found that the effects of tunnel longitudinal ventilation on the protection of tunnels in lower ventilation conditions were limited,and even exacerbate the fire risk of the tunnel.The transverse ventilation in larger exhaust air velocity conditions may cause smoke aspiration,and resulted in combustion instability.关键词
电力电缆/隧道/火灾仿真/机械通风/安全防护Key words
electric cable/tunnel/fire simulation/mechanical ventilation/safety protection分类
信息技术与安全科学引用本文复制引用
张佳庆,范明豪,李伟,王刘芳,武海澄,汪书苹..电力电缆隧道机械通风防护技术研究[J].中国电力,2017,50(6):113-119,7.基金项目
安徽省科技计划项目(1206c0805036) （1206c0805036）
安徽省自然科学基金资助项目(1408085MKL94) （1408085MKL94）
国家电网公司科技项目(52120515005H,52120016036X).This work is supported by Science and Technology Planning Project of Anhui Province (No.1206c0805036) （52120515005H,52120016036X）
Anhui Provincial Natural Science Foundation(No.1408085MKL94) （No.1408085MKL94）
Science and Technology Project of SGCC (No.52120515005H,52120016036X). （No.52120515005H,52120016036X）
