| 核电厂封闭空间横向多层电缆燃烧纵向温度分布特征研究 |
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| 引用本文： | 王煜宏,祝赫,黄咸家.核电厂封闭空间横向多层电缆燃烧纵向温度分布特征研究[J].核动力工程,2019,40(3):121-124. |
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| 作者姓名： | 王煜宏 祝赫 黄咸家 |
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| 作者单位： | 中广核工程有限公司核电安全监控与装备国家重点实验室,广东深圳,518124;广州中国科学院工业技术研究院核电火灾安全联合实验室,广州,511458 |
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| 摘 要： | 针对核电厂横向多层电缆火灾危害性,研究封闭空间内电缆燃烧产生的室内温度分布特征及热烟气层温度预测模型。基于2种典型的电缆布置,在封闭空间进行了横向3层电缆燃烧实验。实验研究结果表明,横向多层电缆燃烧产生的热烟气层温度存在明显的分层现象。基于室内中心纵向温度分布,可将室内电缆燃烧产生的热环境分为底层冷空气层、中层热烟气层和顶层顶棚射流层。采用封闭空间内非稳态温度预测模型,对横向多层电缆桥架电缆火灾的热烟气层温度进行预测。通过比较模型预测结果和热烟气层温度实验测量值可以得到:该模型可以精确地预测封闭空间内热烟气层温度的最大值,相对误差小于1%;由于模型低估了火灾衰减阶段的温度发展,导致该模型预测整个温度发展的全局误差在16.3%~27.8%之间。
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| 关 键 词： | 核电厂 电缆火灾 烟气层温度 封闭空间 电缆布置 |
Investigation on Vertical Temperature Profile Generated by Fire on Horizontal Multi-Layer Cable Tray in Closed Compartment of Nuclear Power Plant |
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| Wang Yuhong,Zhu He,Huang Xianjia.Investigation on Vertical Temperature Profile Generated by Fire on Horizontal Multi-Layer Cable Tray in Closed Compartment of Nuclear Power Plant[J].Nuclear Power Engineering,2019,40(3):121-124. |
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| Authors: | Wang Yuhong Zhu He Huang Xianjia |
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| Affiliation: | (State Key Laboratory of Nuclear Power Monitoring Technology and Equipment,China Nuclear Power Engineering Co.Ltd.,Shenzhen,Guangdong,518124,China;Joint Laboratory of Nuclear Power Plant Fire Safety,Institute of Industry Technology Guangzhou and Chinese Academy of Sciences,Guangzhou,511458,China) |
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| Abstract: | Wang Yuhong;Zhu He;Huang Xianjia(State Key Laboratory of Nuclear Power Monitoring Technology and Equipment,China Nuclear Power Engineering Co.Ltd.,Shenzhen,Guangdong,518124,China;Joint Laboratory of Nuclear Power Plant Fire Safety,Institute of Industry Technology Guangzhou and Chinese Academy of Sciences,Guangzhou,511458,China) |
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| Keywords: | Nuclear power plant Cable tray fire Smoke layer temperature Closed compartment Cable arrangement |
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