天然气输气管道系统雷电灾害综合防御的研究

Research on Comprehensive Lightning Disaster Protection for Natural Gas Pipeline Transmission Systems

摘要: 随着城镇燃气管网规模的快速扩张，其雷电灾害脆弱性日益凸显。本研究聚焦天然气输配系统中的场站、阀室及埋地管线等关键设施，通过分析特定区域的历史闪电定位数据与雷灾案例，系统评估了现有防雷措施的效能。研究创新性地将闪电地闪密度、强度、陡度等多维参数融合，构建了精细化的雷电灾害风险评估模型，并据此提出了“分区、分级、重点防护”的综合防御策略。最终，研究成果转化形成了地方标准草案的核心技术内容，为提升城镇燃气系统的雷电灾害韧性提供了理论依据与工程实践指南。

Abstract: With the rapid expansion of urban gas pipeline networks, their vulnerability to lightning disasters has become increasingly prominent. This study focuses on key facilities within natural gas transmission and distribution systems, such as stations, valve chambers, and buried pipelines. By analyzing historical lightning location data and case studies of lightning disasters in specific regions, it systematically evaluates the effectiveness of existing lightning protection measures. Innovatively, the research integrates multiple lightning parameters—including ground flash density, intensity, and steepness—to develop a refined risk assessment model for lightning disasters. Based on this model, a comprehensive protection strategy of “Zoning, Grading, and Key Point Protection” is proposed. Ultimately, the research findings have been translated into the core technical content of a draft local standard, providing a theoretical basis and practical engineering guidance for enhancing the resilience of urban gas systems against lightning disasters.