旋流板式除雾器流动特性的数值模拟分析  

Numerical Simulation of Flow Characteristics of a Whirlwind Fog-removal Device in Wet-FGD

作　　者：郭欣欣 郑筱凯 王丽梅 张英斌 

机构地区：[1]上海汉卓能源科技有限公司,上海201100 [2]哈尔滨哈投投资股份有限公司热电厂,黑龙江哈尔滨150000

出　　处：《节能技术》2017年第6期523-526,555,共5页Energy Conservation Technology

摘　　要：本文以某脱硫装置所用旋流板式除雾器为分析对象,采用CFD对烟气通过除雾器的两相流过程进行数值模拟分析。计算结果表明:随着烟气流速、液滴粒径和板片数量的增加,除雾器除雾效率也随之增加;但烟气流速和板片数量的增加,将导致除雾器的压降增加。研究结果对旋流板片式除雾器的设计和改进具有参考意义。In this Paper, the computational fluid dynamics （CFD） method is used to simulate numerically the two phase flow of gas and liquid in a whirlwind fog - removal device. The results show that ： with the increase of flue gas flow rate, droplet size and the number of plates, the demisting efficiency increases. However, the increase of the gas flow rate and the number of plates will lead to the increase of the pres- sure drop of the whirlwind fog - removal device. The research result is useful to the design of the whirl- wind fog -removal device.

关 键 词：旋流板式除雾器 液滴捕集 数值模拟 湿法脱硫 除雾效率 两相流动 

分 类 号：TK223.27[动力工程及工程热物理—动力机械及工程]