复杂地形含硫气体扩散定量风险评价技术  

Quantitative Risk Assessment Technique for Leak and Dispersion ofSour Gas Under Complex Topographic Conditions

作　　者：余清秀 张林霞[2] 刘坤[2] 杨珍希 YU Qingxiu;ZHANG Linxia;LIU Kun;YANG Zhenxi(Sichuan Tianyu Petroleum Environmental Protection&Safety Technology Consulting Services LTD,Chengdu Sichuan 610213,China;Safety,Environment and Technology Supervision Research Institute,PetroChina Southwest Oil Gasfield Company,Chengdu Sichuan 610213,China)

机构地区：[1]四川天宇石油环保安全技术咨询服务有限公司,四川成都610213 [2]中国石油西南油气田公司安全环保与技术监督研究院,四川成都610213

出　　处：《安全》2021年第10期18-23,共6页Safety & Security

摘　　要：为解决平原地区气体扩散难以准确反映复杂地形气体扩散的真实情况,本文采用地形数字高程模型和网格划分技术、流体动力学模型,运用具有自主知识产权的气体扩散风险软件进行分析和评价,研究复杂地形条件下气体扩散定量风险评价技术方法并通过风洞实验进行验证。结果表明:该定量风险评价技术能够客观真实地反映复杂地形条件下天然气泄漏扩散的风险。In order to solve the problem that gas diffusion in plain area is difficult to accurately reflect the real situation of gas diffusion in complex terrain.In this paper,terrain digital elevation model and mesh division technology were adopted and a"sour gas diffusion"risk software with independent intellectual property rights was used to study quantitative risk assessment method for sulfurous gas diffusion under complex topography condition.The method was verified through wind tunnel experiment.The results show that the quantitative risk assessment technology can objectively and truly reflect the risk resulted from leakage and diffusion of natural gas under complex topography conditions.

关 键 词：复杂地形 数字高程模型 网格划分 计算流体力学 风险评价 

分 类 号：X948[环境科学与工程—安全科学]