摘要
与常规湿法洗涤塔相比,干式酸气吸收器操作流程简便、设备成本及维护费用低,此外不产生废液排放,能够有效避免二次废物处理。通过合理设计设备形式及结构尺寸,可使干式酸气吸收器具备较高的除酸效率和吸收剂利用率,并保持较低的设备阻力以降低能耗。本文利用workbench有限元分析软件,模拟设备运行,分析设计参数对设备性能的影响,根据工艺计算及数值模拟结果,开展了干式酸气吸收器的结构设计及加工制造,并进行了实际测试。结果表明,当流道宽度增加时能够有效提高吸收剂利用率;而对吸收剂料仓进行分仓设计,在显著降低设备阻力的同时吸收剂利用率被削弱;进一步采用共用流道的设计方法,能够改善设备内气体分布流场,保证对吸收剂的有效利用;最后通过实际应用和测试,证明酸气吸收器能够满足连续运行时烟气除酸的需求。
Compared with the conventional wet scrubber,dry acid gas absorber has simple operation process,low equipment cost and maintenance cost.In addition,waste liquid discharge can be avoided,which can effectively avoid secondary waste treatment problems.Through reasonable design equipment forms and structural sizes,the dry acid gas absorbers have high acid removal efficiency and absorbent utilization rate,and maintain a relative lower equipment resistance to reduce energy consumption.Therefore,the finite element analysis software workbench is used to simulate the equipment operation and analyze the influence of design parameters on the equipment performance.The results show that when the channel width increases,the utilization rate of absorbent can be effectively improved.However,the Sub-warehouse design of the absorbent silo can significantly reduce the equipment resistance while weakening the utilization rate of the absorbent.In addition,the design method of the shared runway can be further adopted,which can improve the gas distribution flow field of the equipment and ensure the effective use of the absorbent.Finally,through actual application and test,it is proved that the acid gas absorber can meet the needs of flue gas removal during continuous runtime.
作者
张旭锐
张禹
张晓斌
阮佳晟
徐卫
郑博文
ZHANG Xurui;ZHANG Yu;ZHANG Xiaobin;RUAN Jiasheng;XU Wei;ZHENG Bowen(China Institute for Radiation Protection,Three Wastes Treatment Research Institute,Taiyuan 030006)
出处
《辐射防护》
北大核心
2025年第4期379-387,共9页
Radiation Protection
关键词
干式酸气吸收器
数值模拟
利用率
dry acid gas absorber
numerical simulation
utilization rate
作者简介
张旭锐(1996-),女,2018年毕业于运城学院应用化学专业,2021年毕业于上海大学物理化学专业,获硕士学位,研究实习员。E-mail:zxurui2022@163.com。
