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 ›› 2022, Vol. 41 ›› Issue (2): 165-168.

• • 上一篇    下一篇

KI25X变压器油的热解特性研究及动力学分析

陈 涛1，王雨薇1，张佳庆2，黄 勇3   

  1. （1.应急管理部天津消防研究所，天津 300381；2.国网安徽省电力有限公司电力科学研究院，安徽 合肥 230601；3.国家电网有限公司，北京 100031）
  • 出版日期:2022-02-15 发布日期:2022-02-15
  • 作者简介:陈 涛（1980-），男，应急管理部天津消防研究所副研究员，主要从事灭火剂及灭火技术研究，天津市南开区卫津南路110号，300381。
  • 基金资助:
    国家电网公司科技项目（521205200049）

Study on pyrolysis characteristics and kinetic analysis of KI25X transformer oil

CHEN Tao1, WANG Yu-wei1, ZHANG Jia-qing2,HUANG Yong3   

  1. (1. Tianjin Fire Science and Technology Research Institute of MEM， Tianjin 300381， China; 2. State Grid Anhui Electric Power Research Institute, Anhui Hefei 230601, China; 3. State Grid Corporation of China, Beijing 100631, China)
  • Online:2022-02-15 Published:2022-02-15

摘要： 采用热重分析和热重-红外联用技术,探究了常用变压器油KI25X在3种不同升温速率下的热解特性，发现热解过程主要发生在200～300 ℃和550～800 ℃两个阶段，且通过试验发现变压器热故障释放能量会造成变压器油的热解劣化，破坏变压器油的化学键，产生低分子烃类气体并溶于其中。利用微分法和积分法热力学理论计算出变压器油在N2氛围下热解过程的动力学参数。通过综合分析变压器油的热解特性和动力学参数，为进一步深入研究变压器油的热故障检测提供理论依据。

关键词: 变压器油, 热重-红外分析, 升温速率, 热解动力学

Abstract: Thermogravimetric analysis (TGA) and thermogravimetric infrared (TG-IR) techniques were used to investigate the pyrolysis characteristics of transformer oil KI25X at three different heating rates. It was found that the pyrolysis process mainly took place at 200~300 ℃ and 550~800 ℃, and the results show that the energy released by the thermal failure of the transformer will cause the pyrolysis degradation of the transformer oil, destroy the chemical bonds of the transformer oil, and produce low molecular hydrocarbon gas dissolved in it. The kinetic parameters of the pyrolysis process of transformer oil in N2 atmosphere were further calculated by using the thermodynamic theory of differential method and integral method. The comprehensive analysis of the pyrolysis characteristics of transformer oil provide a theoretical basis for the further study of thermal fault detection of transformer oil.

Key words: transformer oil, thermogravimetric infrared analysis, heating rates, pyrolysis kinetics