火电厂氨泄漏扩散特性模拟研究  

Ammonia Slip and Diffusion Characteristics of Power Plants

作　　者：吴其荣 杜云贵[2] 喻江涛 李天中 

机构地区：[1]中电投远达环保工程有限公司,重庆401122 [2]重庆大学资源及环境科学学院,重庆400045

出　　处：《环境科学与技术》2014年第2期155-159,共5页Environmental Science & Technology

基　　金：国家科技支撑计划项目资助(2007BAC24B00)

摘　　要：文章基于流体动力学软件Fluent模拟了火电厂氨区的氨泄漏和扩散状况。根据电厂氨区及氨储罐的布置特点,基于当地的气象条件,研究了不同风速、不同风向、不同泄漏点的氨泄漏扩散特性。通过检测氨区周边特征线上的氨浓度分布状况,分析了泄露发生后10 s时间内的氨扩散情况。研究认为在主导风向下氨泄漏检测仪安装在W和S面的交界面附近,高度为y=-0.5 m到y=1.5 m区域较为合理。Modeling software Fluent was used to simulate ammonia slipping and diffusing of the ammonia district of power plants. Based on the real arrangement characteristics and local weather conditions, the diffusion characteristics of ammonia slipping and diffusing under different points, different velocities of the wind and different directions were studied. Through investigating the ammonia distribution on characteristic curve, ammonia diffusion characteristics in 10 seconds after ammonia slipping were analyzed. It was proposed the best location for the ammonia detector is installed between the interface W and S under predominant wind direction, with the height better between y=-0.5 m and y=l.5 m.

关 键 词：CFD数值模拟 氨泄漏 气象条件 扩散特性 

分 类 号：X773[环境科学与工程—环境工程]