| 孙韬,全珈兴,叶良鹏,李平春,张佳庆.电缆沟排水沟结构对防火性能影响的实验研究[J].火灾科学,2025,34(4):320-327. |
| 电缆沟排水沟结构对防火性能影响的实验研究 |
| Experimental study of the effect of cable trench drain structure on fire resistance |
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| DOI：10.3969/j.issn.1004-5309.2025.04.08 |
| 基金项目:安徽省自然科学基金项目(2208085UD13) |
| 作者 | 单位 | | 孙韬 | 1. 国网安徽省电力有限公司电力科学研究院, 合肥, 230601
2. 国家电网公司输变电设施火灾防护实验室, 合肥, 230601
3. 电力火灾与安全防护安徽省重点实验室, 合肥, 230601 | | 全珈兴 | 4. 中国科学技术大学火灾安全全国重点实验室, 合肥, 230026 | | 叶良鹏 | 1. 国网安徽省电力有限公司电力科学研究院, 合肥, 230601
2. 国家电网公司输变电设施火灾防护实验室, 合肥, 230601
3. 电力火灾与安全防护安徽省重点实验室, 合肥, 230601 | | 李平春 | 4. 中国科学技术大学火灾安全全国重点实验室, 合肥, 230026 | | 张佳庆** | 1. 国网安徽省电力有限公司电力科学研究院, 合肥, 230601
2. 国家电网公司输变电设施火灾防护实验室, 合肥, 230601
3. 电力火灾与安全防护安徽省重点实验室, 合肥, 230601 |
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| 中文关键词: 电缆沟 排水沟 火蔓延 防火墙 温度场 |
| 英文关键词:Cable trench Drainage trench Fire spread Firewall Temperature field |
| 摘要点击次数: 17 |
| 全文下载次数: 12 |
| 中文摘要: |
| 为研究排水沟结构参数对变电站电缆沟发生流淌火情况下防火性能的影响,通过设置不同电缆沟排水沟半径以及圆心角工况,开展了大尺寸电缆沟流淌火实验,利用热电偶采集环境温度数据,分析温度场变化情况。结果表明:由于油火流入,电缆沟内的温度整体上升,靠近火源位置的整体温度较高,靠近防火墙位置的温度相对较低。随着排水沟半径及圆心角的增大,防火墙前侧温度升高,火灾危险性增大,但靠近火源处的温度会降低。防火墙背侧的整体温度仅微弱升高,背侧未发生燃烧情况,表明在有排水沟的情况下,仍能很好地阻止火灾规模扩大。 |
| 英文摘要: |
| In order to study the influence of the structural parameters of the drainage trench on the fire performance of the substation cable trench in the event of a flowing fire, a large-scale cable trench flowing fire experiment was carried out by setting up different cable trench drainage trench radii and round center angle conditions. Thermocouples were used to analyse changes in the temperature field. The results show that due to the inflow of oil fire, the temperature in the cable trench rises, with the temperature near the fire source higher and that near the firewall lower. As the radius of the drain and the angle of the circle's centre increase, the temperature on the front side of the firewall increases, and the fire danger increases. In contrast, the temperature near the fire source decreases. The overall temperature on the back side of the firewall increased only slightly, and there was no burning, suggesting it still maintains an effective barrier against the spread of fire even with drainage trenches. |
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