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为解决换流站阀厅封堵系统隔热材料的选型与评价问题，选取5种常用的典型隔热材料，开展了热物性及热损伤特性研究。采用平行热线法测试了5种隔热材料在不同温度下的导热系数和等压比热容，同时通过热重实验和锥形量热仪实验分别获取了材料在不同尺度下的热解特性参数与热损伤特性参数；基于实验结果，构建了隔热材料热损伤综合评价指标体系，结合层次分析法与熵权法确定了指标权重，并采用线性组合加权法计算了综合评分。结果表明：5种隔热材料按照隔热能力由强到弱排序为蛭石防火板>硅酸铝复合防火板>镁质防火板>岩棉防火板>硅酸铝针刺毯，按照热损伤程度由低到高排序为蛭石防火板<硅酸铝复合防火板<岩棉防火板<硅酸铝针刺毯<镁质防火板；蛭石防火板的隔热能力最强，热损伤程度最低。该研究结果可为换流站阀厅封堵隔热材料的选型与评价提供理论依据。
Abstract：In order to address the selection and evaluation of heat insulation materials for valve hall sealing systems of converter stations, this study investigates five typical heat insulation materials commonly used in valve hall sealing systems,and analyzes their thermophysical properties and thermal damage characteristics. The thermal conductivity and specific heat capacity of the five materials at different temperatures were measured using the parallel hot wire method. Thermal decomposition and thermal damage characteristic parameters at different scales were obtained through thermogravimetric analysis and cone calorimeter experiments, respectively. Based on the experimental results, a comprehensive thermal damage evaluation index system was constructed. The analytic hierarchy process and entropy weighting method were used to determine the index weights, and a linear combination weighting method was employed to calculate the comprehensive scores. The five materials were ranked by heat insulation capability from strongest to weakest as: vermiculite fireproof board>aluminosilicate composite fireproof board>magnesia fireproof board>rock wool fireproof board>aluminosilicate needle-punched blanket. The five materials were ranked by thermal damage severity from lowest to highest as: vermiculite fireproof board
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基本信息:
DOI：10.13578/j.cnki.issn.1671-1556.20250492
中图分类号:TM721.1
引用信息:
[1]尚峰举,张佳庆,丁国成,等.换流站阀厅封堵隔热材料热物性及热损伤特性研究[J].安全与环境工程,2026,33(02):108-114.DOI:10.13578/j.cnki.issn.1671-1556.20250492.
基金信息:
国网安徽电力科技项目（B3120524000V）
2026-03-18
2026-03-18
2026-03-18