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

消防科学与技术 ›› 2021, Vol. 40 ›› Issue (8): 1114-1117.

• • 上一篇    下一篇

变压器油池火非稳态燃烧特性实验研究

陈 庆1，景巍巍1，蔚 超1，陈 鹏2   

  1. 1.国网江苏省电力有限公司，江苏 南京 210024；2.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:2021-08-15 发布日期:2021-08-15
  • 通讯作者: 陈 鹏（1971-），男，安徽人，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:陈 庆（1962-），男，国网江苏省电力有限公司研究员级高级工程师，硕士，主要从事电力系统继电保护、电力系统自动化和电力系统分析方面的研究，北京市海淀区学院路丁11号，100083。
  • 基金资助:
    国家电网公司科技项目（8000-201918445A-0-0-00）

Study on the unsteady combustion characteristics of transformer oil pool fire

CHEN Qing1, JING Wei-wei1,  WEI Chao1, CHEN Peng2   

  1. 1. State Grid Jiangsu Electric Power Co., Ltd., Jiangsu Nanjing 210024, China; 2. China University of Mining & Technology Beijing, Beijing 100086, China
  • Online:2021-08-15 Published:2021-08-15

摘要：

为研究变压器油的非稳态燃烧特性，搭建变压器油燃烧实验平台，开展不同油池直径的池火实验，系统分析油池直径对变压器油非稳态燃烧的影响，定性、定量研究不同油池直径对燃烧速率、火焰脉动频率等的影响。结果表明：变压器油池火燃烧过程可以划分为：初期增长阶段、充分发展阶段和衰减阶段。其中充分发展阶段又可以根据燃烧速率的变化特征分为准稳态燃烧阶段和沸腾燃烧阶段。燃烧速率随油池直径的增大而增大。准稳态燃烧阶段中，火焰脉动频率与油池直径呈负相关，油池直径越大，火焰脉动频率越小。

关键词: 变压器油, 油池火, 非稳态燃烧, 燃烧速率

Abstract:

 In order to study the unsteady combustion characteristics of transformer oil, a experimental platform for transformer oil combustion was set up. The influence of oil pool diameter on the unsteady combustion of transformer oil was systematically analyzed, and the influence of different oil pool diameter on combustion rate and flame fluctuation frequency was studied qualitatively and quantitatively. The results show that the combustion process of transformer pool fire can be divided into three stages: initial growth stage, full development stage and attenuation stage. The fully developed stage can be divided into quasi steady combustion stage and boiling combustion stage according to the characteristics of combustion rate. The combustion rate increases with the increase of oil pool diameter. In the quasi steady combustion stage, the flame pulsation frequency is negatively correlated with the oil pool diameter. The larger the oil pool diameter is, the smaller the flame pulsation frequency.

Key words: transformer oil, oil pool fire, unsteady combustion, burning rate