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 ›› 2023, Vol. 42 ›› Issue (6): 779-784.

• • 上一篇    下一篇

电缆隧道不同材质防火隔板的防火效果研究

普子恒1, 胡锦1, 郭卫2, 周士贻2   

  1. （1. 三峡大学 电气与新能源学院，湖北 宜昌 443002；2. 国网北京电力科学研究院，北京 100075）
  • 出版日期:2023-06-15 发布日期:2023-06-15
  • 作者简介:作者简介：普子恒（1987- ），男，湖北武汉人，三峡大学电气与新能源学院副教授，博士，主要从事高压电器设备绝缘试验技术研究，湖北省宜昌市西陵区大学路8号，443002。
  • 基金资助:
    国家自然科学基金项目（51607103）

Study on the fire prevention effect of different materials of fire barriers in cable tunnels

Pu Ziheng1, Hu Jin1, Guo Wei2, Zhou Shiyi2   

  1. (1. College of Electrical Engineering and New Energy, Three Gorges University, Hubei Yichang 443002, China; 2. Beijing Electric Power Research Institute, State Grid, Beijing 100075, China)
  • Online:2023-06-15 Published:2023-06-15

摘要： 为对比电缆隧道不同材质防火隔板的防火隔热效果和为防火隔板选型提供参考依据，首先对隧道内应用的4种典型防火隔板进行燃烧性能和力学性能测试，然后搭建模拟电缆隧道火灾的真型试验平台，对不同隔板进行防火效果对比试验。结果表明：无机硅酸钙板不可燃，但其力学性能最差，在真型试验中，3种火源功率下隔板均发生断裂现象，断裂后无法起到防火作用；无机玻镁板不可燃，在真型试验中300、400 kW火源功率下力学性能变差，隔板的火源上方处变形，防火效果较差；有机拉挤板可燃，在300、400 kW火源功率下隔板背火面会被引燃，无法起到防火作用；有机模压板难燃，在真型试验中，3种火源功率下，隔热效果均表现良好，背火面不会被引燃，且力学性能良好，能起到很好的防火效果。

关键词: 电缆隧道火灾, 防火隔板, 燃烧性能, 力学性能, 防火效果

Abstract: In order to compare the fire protection and heat insulation effects of different materials of fire barriers in cable tunnels and provide a reference for the selection of fire barriers, this paper first tests the combustion and mechanical properties of four typical fire barriers used in tunnels, and then builds a real test platform to simulate cable tunnel fire, and conducts comparative tests on the fire protection effects of different barriers. The results show that the inorganic calcium silicate board is incombustible, but its mechanical properties are the worst. In the true type test, the partition plate breaks under three kinds of fire power, and can not play a role in fire protection after breaking; Inorganic glass magnesium plate is incombustible. In the true type test, the mechanical properties become worse under the fire power of 300 kW and 400 kW, the upper part of the fire source of the partition is deformed, and the fire prevention effect is poor; The organic pultrusion board is combustible, and the back fire surface of the partition will be ignited under the fire source power of 300 kW and 400 kW, which cannot play a role in fire prevention; The organic molded plate is difficult to burn. In the true type test, under the power of three fire sources, the heat insulation effect is good, the back fire surface will not be ignited, and the mechanical property is good, which can play a good fire protection effect.

Key words: cable tunnel fire, fire barriers, combustion properties, mechanical properties, fire protection effect