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 ›› 2020, Vol. 39 ›› Issue (1): 89-91.

• • 上一篇    下一篇

煤粉深位火灾灭火剂及其水平蔓延规律

王 玥,李 晋,吕 东,赵力增    

  1. 应急管理部天津消防研究所,天津 300381
  • 收稿日期:2019-08-25 出版日期:2020-01-15 发布日期:2020-01-15
  • 作者简介:王 玥(1990-),男,内蒙古包头人,应急管理部天津消防研究所火灾理论研究室助理研究员,硕士,主要从事石油化工安全方面的研究,天津市南开区卫津南路 110 号,300381。
  • 基金资助:
    公安部重点研究计划项目“典型固体自热物质火灾特征及事故处理技术研究”(2017JSYJA13)

Study on extinguishing agent and its horizontal spreading law in pulverized coal deep-seated fire

WANG Yue, LI Jin, LV Dong, ZHAO Li-zeng   

  1. Tianjin Fire Research Institute of MEM, Tianjin 300381, China
  • Received:2019-08-25 Online:2020-01-15 Published:2020-01-15

摘要: 为解决一般灭火剂和灭火方式无法扑灭煤粉深位火 灾的问题,在水中加入表面活性剂,降低表面张力,提高其润湿煤 粉的能力,作为扑灭煤粉内部深位火灾的有效灭火剂。通过设置 实验装置筛选出适用于煤粉深位火灾的灭火剂。通过实验得到灭 火剂的主要配方为 0.20%吐温-80、0.10%乙二胺四乙酸四钠、 0.05%丁二酸二异辛酯磺酸钠和 0.10%碳酸钾溶液,余量为水。 在渗透压力分别为 0.1、0.2、0.3 MPa 情况下,得到灭火剂渗透到 0.25、0.50、0.75 m 处的渗透时间,利用实验结果拟合得到了灭火 剂水平渗透蔓延煤粉的计算公式。

关键词: 煤粉堆垛, 灭火剂, 煤粉深位火灾, 水平渗透

Abstract: In order to solve the problem that common extinguishing agent and extinguishing method can't extinguish pulverized coal fire at depth level, an effective fire extinguishing agent was obtained by adding surfactant into water to reduce the surface tension and improve the wettability of coal powder. The extinguishing agent for pulverized coal fire at depth level was screen out by setting experimental device. The main formulations of fire extinguishing agent are 0.20% twain- 80, 0.10% ediaminetetraacetic acid tetrasodium, 0.05% diisooctyl succinate sodium sulfonate and 0.10% potassium carbonate solution. The penetration time of extinguishing agent to 0.25,0.50 and 0.75 m is obtained at the penetra⁃ tion pressure of 0.1,0.2 and 0.3 MPa respectively. Based on the experimental results,the formula for calculating the horizontal pene⁃ tration and spreading of pulverized coal for fire extinguishing agent is obtained.

Key words: the coal stack, extinguishing agent, pulverized coal deep-seated fire, the horizontal penetration