苯储罐泄漏事故的仿真研究  

Visual Simulation of the Leaking Accident of Benzene Tank

作　　者：刘堃[1] 

机构地区：[1]中国矿业大学(北京)资源与安全工程学院,北京100083

出　　处：《北京理工大学学报》2012年第2期212-215,220,共5页Transactions of Beijing Institute of Technology

基　　金：国家教育部新世纪优秀人才支持计划(NCET-05-0214)

摘　　要：为了解决化工企业中常见的危险化学品泄漏问题,以河南神马尼龙化工厂苯储罐区为例,在3个基本假设条件下,运用重气扩散模型和湍流模型,对苯储罐泄漏事故过程进行模拟和浓度云图分析,从而进行安全区域判定.研究结果表明,苯泄漏后在事故源方向沿下风向形成烟团扩散带,处于混合层的烟羽则会以相等的速率向垂直和水平方向扩散;对与不同风速下的泄漏情况,应采取相应的防护措施.研究结果实现了可视化仿真和现场数据管理功能,为处理苯泄漏事故提供了技术支持.In order to provide the technical aid for chemical leakage accidents in factory,taking the zone of benzene tank in He＇nan Shenma Nylon Chemical Co.as a sample,the heavy gas dispersion model and turbulence flow model were used to simulate leakage of benzene tank under the constrain of basic assumptions.The gas concentration contours with the change of wind velocity were analyzed and the safety zones were determined.The results of simulation show that the bands of diffused puff are formed along the direction of tailwind and the rate of vertical or horizontal proliferation is equal in mixed layer.For different wind speeds,appropriate protective measures should be taken to control the results of accident.The achieved visual simulation and function of onsite data management provide the technical support for the leak accident of benzene tank.

关 键 词：苯泄漏 重气扩散模型 湍流模型 安全区域 烟团扩散 

分 类 号：X937[环境科学与工程—安全科学]