| 一起爆燃事故调查与分析 |
| |
| 引用本文： | 辛志彬,吕东.一起爆燃事故调查与分析[J].消防科学与技术,2020,39(11):1609-1612. |
| |
| 作者姓名： | 辛志彬 吕东 |
| |
| 作者单位： | 1. 青岛市消防救援支队，山东青岛266071；2. 应急管理部天津消防研究所，天津300381 |
| |
| 基金项目： | 应急管理部天津消防研究所基本科研业务费项目“自扩散情况下加氢场所量化风险模拟及氢爆自由基湮灭试剂研究”（2019SJ10） |
| |
| 摘 要： | 针对一起电焊施工引发爆燃的事故调查，通过现场勘验、调查询问、模拟试验和红外热成像分析等手段，排除了焊渣掉落起火和吸烟起火等原因。在深入研究了电焊回路起火的机理后，提出了在大电流电焊引弧的过程中，焊接回路中不牢固的接触部位会形成局部过热和高温，能引发周围可燃物起火，为电焊火灾事故调查提供一些新的思路。
|
| 关 键 词： | 火灾调查 现场勘验 模拟试验 焊接回路 爆燃 |
Investigation and analysis of a deflagration accident |
| |
| XIN Zhi-bin,LV Dong.Investigation and analysis of a deflagration accident[J].Fire Science and Technology,2020,39(11):1609-1612. |
| |
| Authors: | XIN Zhi-bin LV Dong |
| |
| Affiliation: | 1. Qingdao Fire and Rescue Division, Shandong Qingdao 266071, China; 2. Tianjin Fire Science and Technology Research Institute of MEM, Tianjin 300381, China |
| |
| Abstract: | Based
on investigating an accident of deflagration caused by electric welding
construction, on- site inspection, investigation and inquiry, simulation test
and infrared thermal imaging analysis were conducted and the causes of welding
slag falling and smoking were excluded. After in-depth study of the mechanism
of fire in the welding circuit, it was proposed that in the process of
high-current arc welding, the weak contact parts in the welding circuit will
form local overheating and high temperature, which can cause the fire on
surrounding combustibles. The paper provides some new ideas for fire
investigation of electric welding. |
| |
| Keywords: | fire investigation site investigation simulation test welding circuit deflagration |
|
| 点击此处可从《消防科学与技术》浏览原始摘要信息 |
|
点击此处可从《消防科学与技术》下载全文 |
