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 (3): 318-321.

• • 上一篇    下一篇

室外变压器火灾燃烧特性全尺度实验研究

戴晨蓉1,陈光2,朱博2,徐亮2,陈鹏3,孙瑞邦3   

  1. 1.国网江苏省电力有限公司,江苏 南京 2100242.国网电力科学研究院有限公司,江苏 南京 211106;3.中国矿业大学(北京) 应急管理与安全工程学院,北京 100086

  • 出版日期:2020-03-15 发布日期:2020-03-15
  • 通讯作者: 陈 鹏(1971-),男,中国矿业大学(北京)工业安全与职业危害研究所副所长。
  • 作者简介:戴晨蓉(1973-),男,国网江苏省电力有限公司高级工程师,学士,主要从事电气工程方面的研究,江苏省南京市江宁区苏源大道56号,210024。
  • 基金资助:
    国家电网公司科技项目“大型充油设备泡沫细水雾涡扇炮智能灭火技术研究与应用”(SGTYHT/18-JS-206);国家电网公司科技项目“大型充油设备泡沫细水雾涡扇炮智能灭火技术研究与应用”(SGTYHT/18-JS-206)

Full scale experimental research on combustion characteristics of outside transformer fire

DAI Chen-rong1, CHEN Guang2, ZHUBo2, XU Liang2, CHEN Peng3, SUN Rui-bang3   

  1. 1.State Grid Jiangsu Electric Power Co., Ltd., Jiangsu Nanjing 210024, China; 2.State Grid Electric Power Research Institute Co., Ltd., Jiangsu Nanjing 211106, China; 3. School of Emergency Management and Safety Engineering, China University of Mining & Technology (Beijing), Beijing 100086, China
  • Online:2020-03-15 Published:2020-03-15

摘要:

开展35 kV室外变压器全尺度火灾实验研究,探究变电站火灾燃烧特性。同时考虑4处火灾,在变压器不同位置设置火源,分析火焰传播情况、温度变化曲线,为变电站消防建设和应急救援提供理论支撑。研究表明:变压器火灾具有隐蔽、立体、多尺度的燃烧特征。多个尺度不一的立体火源在燃烧过程中存在多个火焰的相互碰触、合并行为;在充分燃烧阶段,变压器上部火焰存在火焰震荡、分离等不稳定现象。火焰形态在下方主要为贴壁火焰,在上方主要为扩散燃烧形成的连续火焰和间歇火焰;温度分布在垂直方向呈现逐渐降低的规律,在水平方向呈现中间温度高,两侧温度低的规律。

关键词: 室外变压器, 火灾动力学, 燃烧特性

Abstract:

The full scale fire experiment of 35 kV outdoor transformer was carried out to explore the burning characteristics of substation fire.Four fires at the same time were considered by setting fires at different position of transformer. The flame spread and temperature change were analyzed to provide theoretical support for substation fire construction and emergency rescue. The research showed that the transformer fire has hidden, three-dimensional and multi-scale combustion characteristics. In the process of combustion of fire sources with different scales, there are multiple flame touching and merging behaviors. In the stage of full combustion, the upper flame of the transformer is unstable, such as flame shock and separation. it is mainly attached wall flame under the transformer and continuous and intermittent flame formed by diffusion combustion above the transformer.The temperature gradually decreases in the vertical direction, while the temperature in the middle is high and the temperature on both sides is low in the horizontal direction.

Key words: outdoor transformer, fire dynamics, combustion characteristics