基于场景的超临界二氧化碳管道泄漏危害区域确定研究  

Research on determination of leakage hazardous area of supercritical CO_(2)pipeline based on scenes

作　　者：张强[1,2] 张涛涛 王金江 沈凡[3] 杨玉锋 倪晓阳 ZHANG Qiang;ZHANG Taotao;WANG Jinjiang;SHEN Fan;YANG Yufeng;NI Xiaoyang(China University of Petroleum,Beijing,Beijing 102299,China;Pipe China Science&Technology Research Institute,Tianjin 300457,China;China University of Geosciences,Wuhan Hubei 430074,China)

机构地区：[1]中国石油大学(北京),北京102299 [2]国家管网集团科学技术研究总院分公司,天津300457 [3]中国地质大学(武汉),湖北武汉430074

出　　处：《中国安全生产科学技术》2024年第12期43-49,共7页Journal of Safety Science and Technology

基　　金：国家石油天然气管网集团有限公司科学研究与技术开发项目(DTXNY202401,AQWH202204)。

摘　　要：为研究二氧化碳管道在复杂地形及建筑条件下的扩散特性,确定CO_(2)管道泄漏扩散后导致的潜在危害区域,采用有限元方法,以k-ωSST模型为基础,构建典型场景下的管道三维模型,分析建筑物类型、地形条件、泄漏孔径对CO_(2)泄漏扩散变化的影响,根据数值分析结果构建平坦地形下泄漏影响范围的多元回归方程。研究结果表明:CO_(2)泄漏距离受到建筑物、风速及泄漏孔径的影响。研究结果可为平坦地形泄漏及地形起伏较大且外部环境复杂的二氧化碳管道泄漏危害区域提供理论支撑。To investigate the diffusion characteristics of CO_(2)pipelines under complex terrain and building conditions,and determine the potential hazardous areas caused by CO_(2)pipeline leakage and diffusion,a three-dimensional model of the pipeline under typical scenes was constructed based on the k-ωSST model by using the finite element method.The influence of building types,terrain conditions,and leakage hole diameters on the change in CO_(2)leakage and diffusion was analyzed,and the multivariate regression equations for the influence range of leakage under flat terrain were developed according to the numerical analysis results.The results show that the CO_(2)leakage distance is influenced by the building,wind speed,and leakage hole diameter.The research results can provide theoretical support for assessing the hazardous areas of CO_(2)pipeline leakage in flat terrain as well as in areas with significant topographical variation and complex external environments.

关 键 词：超临界CO_(2) 场景构建 泄漏扩散 危害区域 

分 类 号：TE88[石油与天然气工程—油气储运工程] X937[环境科学与工程—安全科学]