特高压换流站高端阀厅封堵火灾仿真与分析  

SIMULATION AND ANALYSIS OF FIRE BLOCKAGE IN HIGH-LEVEL VALVE HALL OF UHV CONVERTER STATION

作　　者：刘磊 张陵 Liu Lei;Zhang Ling(Electric Power Research Institute of State Grid Xinjiang Electric Power Company Limited,Urumqi 830011,Xinjiang,China)

机构地区：[1]国家电网新疆电力有限公司电力科学研究院,新疆乌鲁木齐830011

出　　处：《计算机应用与软件》2025年第4期381-388,共8页Computer Applications and Software

基　　金：国家电网公司科技项目(SGXJDK00PJJS2000062)。

摘　　要：换流站阀厅是直流设备核心区域,阀厅封堵的防火性能对直流输电系统运行具有重要的支撑作用。针对±1100 kV特高压换流站高端阀厅封堵结构防火能力进行分析,该文分析±1100 kV高端阀厅中封堵的组成材料,结合封堵工作机理确定火灾危险源;简化封堵结构组件,建立±1100 kV高端阀厅物理仿真模型,采用t 2火源模型描述封堵火灾产生的热释放速率;通过可视化操作仿真软件PyroSim对阀侧套管着火时温度的变化趋势及火灾的蔓延情况进行了计算。仿真结果表明火灾蔓延仅限于阀侧套管区域内,高端阀厅封堵结构能够对火势的蔓延起到抑制作用,从而为设计合理的灭火方案提供了关键依据。The valve hall of the converter station is the core area of the direct current equipment.The fireproof performance of the valve hall blockage plays an important role in supporting the daily operation of the direct current transmission system.This paper analyzed the fire protection capability of the plugging structure of the high-end valve hall in±1100 kV UHV converter station.This paper determined the fire hazard source according to the material and working mechanism of the blocking structure of the±1100 kV high-level valve hall.This paper established a blocking physical simulation model of the±1100 kV valve hall,and simplified it according to the blocking structure components.The t 2 fire source model was used to describe the heat release rate of the fire hazard source.The temperature variation trend and the fire spread of the valve side casing when the valve side was on fire were calculated through the visual operation software PyroSim.The simulation results show that the fire spread is limited to the valve side casing area,indicating that the high-end valve hall plugging structure can inhibit the spread of the fire,which provides key basis for designing a reasonable fire extinguishing plan.

关 键 词：±1100 kV特高压换流站 阀厅仿真 封堵结构 阀侧套管 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术]