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 ›› 2022, Vol. 41 ›› Issue (10): 1362-1366.

• • 上一篇    下一篇

发电厂电缆夹层早期火灾演化特征及探测技术研究

朱 辉1,2,朱垚垚1,卢 臻2,3   

  1. (1.应急管理部四川消防研究所,四川 成都 610036;2.四川大学 土木工程系,四川 成都 610065;3.成都市消防救援支队,四川 成都 610096)
  • 出版日期:2022-10-15 发布日期:2022-10-15
  • 通讯作者: 应急管理部消防救援局科技计划项目(2021XFCX26);国家重点研发计划项目(2021YFC3002000)
  • 作者简介:作者简介:朱 辉(1985- ),男,江苏徐州人,应急管理部四川消防研究所助理研究员,博士,主要从事建筑火灾防控、应急救援方面的研究,四川省成都市金科南路69号,610036。

Study on early fire evolution characteristics and detection technology of cable interlayer in power plant

Zhu Hui1,2,Zhu Yaoyao1, Lu Zhen2,3   

  1. (1. Sichuan Fire Science and Technology Research Institute of MEM, Sichuan Chengdu 610036, China; 2. Department of Civil Engineering, Sichuan University, Sichuan Chengdu 610065, China; 3. Chengdu Fire and Rescue Division, Sichuan Chengdu 610096, China)
  • Online:2022-10-15 Published:2022-10-15

摘要: 摘 要:通过全尺寸电缆夹层试验平台,开展了电缆夹层早期(阴燃及初期)火灾探测试验,研究了温度场和CO气体蔓延特性,通过试验及模拟研究相结合的方法,对比分析了不同响应阈值的点型感烟、点型感温、吸气式感烟、缆式线型感温探测器的有效性。研究结果表明:阴燃及初期火灾温度场衰减均呈现指数函数关系;到火源的距离不同,阴燃火灾CO气体传播平均速度基本相同,而初期火灾CO气体传播平均速度随到火源的距离增加而降低;缆式线型探测器报警时间比吸气式探测器提前69%,比点型感烟探测器提前82%;各探测器初期火灾响应时间比阴燃火灾平均提前56%;阴燃火灾条件下点型感温探测器出现漏报现象;高阈值火灾探测器与低阈值探测器相比,响应时间延迟10%~20%。

关键词: 关键词:发电厂, 电缆夹层, 早期火灾, 温度场, CO体积分数, 火灾探测, 响应阈值

Abstract: Abstract: China requires the systematic protection, utilization and inheritance of historical and cultural heritage in urban and rural construction, and the activation and utilization of historical and cultural blocks and traditional villages to form a batch of replicable and popularized experience. However, in recent years, related fire accidents occurred frequently, and fire hazard remediation and fire-fighting capacity improvement activities continue. This paper summarizes the relevant standards and specifications at home and abroad. In view of the current situation that the fire protection design is difficult to comply with the current fire protection specifications in the process of activation and utilization of historical and cultural blocks and traditional villages, this paper summarizes and abstracts the ideas of targeted fire protection design, and puts forward fire protection design strategies from three levels of region, architecture and monitoring management.

Key words: Key words: historical and cultural blocks, traditional villages, activation and utilization, fire protection design