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 (10): 1435-1439.

• • 上一篇    下一篇

压缩空气泡沫灭特高压换流变实体火试验研究

陈 涛1，张佳庆2，靖立帅1，洪清泉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.国安达股份有限公司，福建 厦门 361023）
  • 出版日期:2022-10-15 发布日期:2022-10-15
  • 通讯作者: 应急管理部天津消防研究所基科费项目（2021SJ01，2022SJ15）；消防救援局科研计划项目（2019XFCX37）
  • 作者简介:作者简介：陈 涛（1980- ），男，河南新蔡人，应急管理部天津消防研究所副研究员，硕士，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。

Experimental study on extinguishing full-level oil spill fire of UHVDC converter transformer by compressed air foam

Chen Tao1, Zhang Jiaqing2, Jing Lishuai1, Hong Qingquan3   

  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.GuoAnda Co., Ltd., Fujian Xiamen, China)
  • Online:2022-10-15 Published:2022-10-15

摘要： 摘 要：基于换流变压器高温热油、爆炸冲击等火灾事故特性，建立了1：1全尺寸特高压换流变压器实体火模型，通过开展全液面溢油火灾灭火试验，验证了压缩空气泡沫喷淋系统技术方案的有效性。试验表明：压缩空气泡沫喷淋系统可以有效解决现有技术的消防支管、喷头等固定消防设施易受爆炸冲击而失效的问题，在12.4 L/（min·m2）泡沫溶液供给强度下，可在28 s控制火势，181 s扑灭火势；顶部油箱温度较高，灭火过程中首先发生复燃；火羽流倾向阀厅侧防火墙方向，加之“防火泡沫幕布”具有热辐射防护作用，致使阀厅侧防火墙温度相对较高。

关键词: 关键词：压缩空气泡沫, 灭火系统, 特高压换流变压器, 高温油品, 溢油火

Abstract: Abstract: The combustion experiments of outdoor multiple fires and single pool fire were carried out under different pool diameter (1.0, 1.4, 1.7 m) and different pool spacing (1.5D, 1.75D, 2D). In the experiment, camera, electronic balance andthermocouples were used to monitor the flame height, the burning rate and the flame temperature respectively. Results show that the burning rate of each fire in the multiple-fire experiments is higher than that of a single pool fire with the same diameter, and when the flame mergence occurs at the distance of 1.5D, the merging flame height is higher than single pool fire flame height with the same diameter, indicating that the combustion risk of multiple-fire is greater. In addition, after the four flames mergence, the exponential changes of flame temperature at the geometric central axis with height are 0.13, [-1.02] and [-1.46], which is basically consistent with the recognized central axis temperature change of common buoyant pool fire, which indicates that multiple flames merge into a common buoyant pool fire.

Key words: Key words: outdoor multiple fires, burning rate, flame temperature, flame height, experimental study