陶瓷膜法烟气水分回收数值与实验对比研究  

Numerical and experimental comparison research on moisture recovery from flue gas by ceramic membrane

作　　者：程超 赵丰 黄吉光 高丹[1] 张衡[3] 陈海平[3] CHENG Chao;ZHAO Feng;HUANG Jiguang;GAO Dan;ZHANG Heng;CHEN Haiping(National Institute of Energy Development Strategy,North China Electric Power University,Beijing 102206,China;Hebei Construction&Investment Group Xuanhua Thermal Power Co.,Ltd.,Zhangjiakou 075100,China;School of Energy,Power and Mechanical Engineering,North China Electric Power University,Beijing 102206,China)

机构地区：[1]华北电力大学国家能源发展战略研究院,北京102206 [2]河北建投宣化热电有限责任公司,河北张家口075100 [3]华北电力大学能源动力与机械工程学院,北京102206

出　　处：《热力发电》2023年第4期121-127,共7页Thermal Power Generation

基　　金：国家重点研发计划项目(2018YFB0604302)。

摘　　要：采用陶瓷膜进行烟气水分回收,既可以实现资源化循环使用,又能减缓环境污染。以双排陶瓷膜组件为研究对象,首先理论分析了水蒸气跨膜传输传热传质过程,构建了物理模型,并根据实际工况下的边界参数开展了数值计算;然后,在某燃煤机组中试试验平台上,针对湿法脱硫后的净烟气开展了试验研究。结果表明:随冷却水温度由25℃升至36℃,回收水量由29.45 kg/h线性降低到18.13 kg/h;烟气流量增大,回收水量逐渐增加,但增长速率逐渐变小;回收水量的计算结果与实验结果偏差均小于7%。Using ceramic membrane to recover moisture from gas is a feasible way that not only can realize the recycling of resources, but also can alleviate environmental pollution. By taking double-row ceramic membrane module as the research object, the heat and mass transfer of water vapor transport was theoretically analyzed, the physical model was established, and numerical simulation was carried out according to the boundary parameters under actual conditions. Then, a pilot test platform was built on a coal-fired unit to carry out the experimental research on the purified flue gas after wet desulfurization. The results show that, the amount of recovered water decreased linearly from 29.45 kg/h to 18.13 kg/h by increasing the cooling water temperature from 25 ℃ to 36 ℃.With the growing of flue gas flowrate, the recovered water gradually increased, but the growth rate gradually decreased. The deviations of the recovery water amount between the calculated results and the experimental data were less than 7%.

关 键 词：陶瓷膜 燃煤机组 水分回收 数值模拟 

分 类 号：X701[环境科学与工程—环境工程]