液氨储罐泄漏扩散模型的改进研究  

Study on Liquid Ammonia Storage Vessel Release and Diffusion Models Improvement

作　　者：孙东亮[1] 蒋军成[1] 张明广[1] 

机构地区：[1]南京工业大学城市建设与安全工程学院江苏省城市与工业安全重点实验室,南京210009

出　　处：《工业安全与环保》2011年第1期27-29,40,共4页Industrial Safety and Environmental Protection

基　　金：江苏省科技计划项目资助(No.BE2008605);南京工业大学青年教师学术基金资助(No.39714005)

摘　　要：针对液氨储罐孔洞泄漏的实际工况,综合考虑泄漏及由于泄漏导致液氨闪蒸造成的罐压变化,以及储罐的许用压力,对其连续泄漏过程进行了分析,以此改进现有的泄漏扩散后果分析模型,获得较忽略这些因素更为严重的后果。最后针对灾难性事故发生前连续泄漏最大持续时间的影响因素进行了分析。结果表明,环境温度与初始罐压对其影响较大,是决定灾难性事故发生与否的重要因素。Based on the actual condition of liquid ammonia vessel hole release, the variability of pressure of the vessel resulting from liquid ammonia release and flash and the relief pressure of the vessel, this paper analyzes the process of continuous release and so the accident consequence models are improved, by which more serious catastrophic consequence is obtained. Finally the parameters of maximum duration before catastrophic failure are analyzed. The ambient temperature and initial pressure of vessel is key to decide whether the catastrophic failure happens.

关 键 词：液氨储罐 模型改进 后果分析 敏感度分析 风险评价 

分 类 号：TQ086[化学工程]