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 (10): 1470-1474.

• • 上一篇    下一篇

重点排烟坡度隧道油罐车火灾通风排烟策略研究

王会强1，蒙红平1，文莉军1，江记记2   

  1. 1.重庆化工职业学院，重庆401228； 2.重庆美高科技有限公司，重庆400041
  • 出版日期:2021-10-15 发布日期:2021-10-15
  • 作者简介:王会强（1990-），男，河南许昌人，重庆化工职业学院讲师，硕士，主要从事消防安全研究，重庆市长寿区菩提东路2009号，401228。

Study on ventilation and exhaust strategy of oil tank truck fire in slope tunnel with central smoke extraction system

WANG Hui-qiang1, MENG Hong-ping1, WEN Li-jun1, JIANG Ji-ji2   

  1. 1. Chongqing Chemical Industry Vocational College, Chongqing 401228, China； 2. Chongqing Meigao Technology Co., Ltd., Chongqing 400041, China)
  • Online:2021-10-15 Published:2021-10-15

摘要： 以烟气蔓延距离、2 m高度处能见度以及系统排烟效率作为判定合理断面送风面积的关键性判据。采用FDS对油罐车在1%、3%、5%、7%坡度隧道内的火灾场景进行模拟。结果表明：坡度小于5%时，断面送风面积占比随着坡度增大而增大；而坡度大于5%时，断面送风面积占比保持在80%不变。根据断面送风面积占比和隧道坡度之间的数值关系，提出了无量纲断面送风面积坡度修正系数公式。

关键词: 坡度隧道, 重点排烟, 纵向补风, 断面送风面积

Abstract: The smoke spreading distance, visibility at 2 m height and smoke exhaust efficiency of the system are taken as the key criteria to determine the reasonable cross-section air supply area. FDS is used to simulate the fire scene of oil tank truck in 1%, 3%, 5% and 7% slope tunnels. The results show that: When the slope is less than 5%, the proportion of cross-section air supply area increases with the increase of slope; When the slope is more than 5%, the proportion of cross-section air supply area remains at 80%. According to the numerical relationship between the proportion of cross-section air supply area and tunnel slope, the model of non-dimensional cross-section air supply area slope correction coefficient is proposed.

Key words: slope tunnel, central smoke extraction, longitudinal air supply, cross-section air supply area