新型活性焦脱硫吸附塔内气流均布特性数值模拟研究  

Study of the Numerical Simulation of the Uniform Distribution Characteristics of a Flue Gas Flow in a New Type Active Coke Desulfurization and Adsorption Tower

作　　者：雷鸣[1] 李阳[1] 范庆伟[1] 丹慧杰[1] 

机构地区：[1]西安热工研究院有限公司,陕西西安710032

出　　处：《热能动力工程》2014年第4期385-390,458,共6页Journal of Engineering for Thermal Energy and Power

摘　　要：采用Fluent流体模拟软件,对新型活性焦脱硫吸附塔塔内气流分布特性进行数值模拟研究,研究结果表明:烟气进入吸附塔,气流速度迅速下降,在床层阻力的作用下,气流均匀穿过活性焦层;床层阻力对气流分布有很大影响,阻力越大,塔内气流越均匀;另外,可以通过改变入口结构或增加扰流装置来改变塔内气流局部不均匀现象。By using the fluid simulation software Fluent,a numerical simulation study was performed of the distribution characteristics of a gas flow in a new type active coke desulfurization and adsorption tower. It has been found that when the flue gases enter into the adsorption tower,the flue gas flow speed will quickly drop under the action of the bed resistance,the flue gas flow will uniformly pass through the active coke layer. The bed resistance will greatly influence the flue gas flow distribution. The bigger the resistance,the more uniform the flue gas flow in the tower. Moreover,the local non-uniform phenomena of the flue gas flow in the tower can be changed by retrofitting the inlet structure or additionally installing a flow disturbing device.

关 键 词：活性焦 烟气脱硫 气流分布 数值模拟 

分 类 号：TK227.6[动力工程及工程热物理—动力机械及工程]