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 ›› 2025, Vol. 44 ›› Issue (8): 1036-1040.

• • 上一篇    下一篇

网状结构电焊作业时非焊接作业点起火模拟试验与原因分析

高鹏, 吕忠, 张怡   

  1. (应急管理部四川消防研究所,四川 成都 610036)
  • 收稿日期:2024-02-21 修回日期:2024-11-01 出版日期:2025-08-15 发布日期:2025-08-15
  • 作者简介:高 鹏,应急管理部四川消防研究所副研究员,博士,主要从事电气火灾防控、电气火灾调查及物证鉴定等方面的研究工作,四川省成都市金牛区金科南路69号,610036,jallenwill12@126.com。
  • 基金资助:
    国家重点研发计划(2022YFC3006300)

Simulation experiment and cause analysis of non welding operation points catching fire during mesh structure welding operation

Gao Peng, Lyv Zhong, Zhang Yi   

  1. (Sichuan Fire Science and Technology Research Institute of MEM, Chengdu Sichuan 610036, China)
  • Received:2024-02-21 Revised:2024-11-01 Online:2025-08-15 Published:2025-08-15

摘要: 电焊火灾是引发较大以上火灾的重要原因之一。通过搭建试验平台,研究网状结构电焊作业时非电焊作业点的起火机理和危险性。研究结果表明,网状结构电焊作业时可能在非电焊作业点起火,起火点的距离、位置具有一定的不确定性,甚至出现多处起火点的情况;不同类型的网格接触点引燃能力不同,当接触点中间有焊瘤时引燃能力最强,引燃方式主要为电弧和喷溅焊渣。研究结果可为该类疑难电焊火灾调查提供技术依据。

关键词: 电焊火灾, 非焊接作业点, 焊渣, 火灾调查

Abstract: Welding fires are one of the important causes of larger fires. This article studies the ignition mechanism and danger of non welding points during mesh structure welding operations by building an experimental platform. The experimental results show that the mesh structure welding operation can ignite a fire at non welding points, and the distance and position of the ignition points have a certain degree of uncertainty, and even multiple ignition points may occur. The ignition ability of different types of grid contact points varies. When there is a weld nugget in the middle of the contact point, the ignition ability is the strongest, and the main ignition methods are arc and splashing of molten beads resembling welding slag. The research results can provide technical basis for investigating such kinds of difficult welding fires.

Key words: welding fire, non welding operation points, welding slag, fire investigation