旋风分离器内湿蒸汽两相流动分析  

Analysis of Wet Steam Two-phase Flow in Cyclone Separator

作　　者：张美凤 常重喜 纳红卫 马喜强 颜令博 Zhang Meifeng;Chang Chongxi;Na Hongwei;Ma Xiqiang;Yan Lingbo(Zhejiang Kelu Nuclear Engineering Service Co.,Ltd.,Jiaxing 314300,Zhejiang Province,China;Huaneng Shandong Shidao Bay Nuclear Power Co.,Ltd.,Weihai 264200,Shandong Province,China;Shanghai Nuclear Engineering Research&Design Institute Co.,Ltd.,Shanghai 200233,China)

机构地区：[1]浙江科路核工程服务有限公司,浙江嘉兴314300 [2]华能山东石岛湾核电有限公司,山东威海264200 [3]上海核工程研究设计院有限公司,上海200233

出　　处：《发电设备》2022年第5期328-332,共5页Power Equipment

摘　　要：基于旋风分离器的分离原理,建立离散相数值模型,利用FLUENT软件模拟液滴在旋风分离器中的轨迹,并比较分离效率。结果表明:小粒径的液滴对气流的追随性较好,会从排汽口排出,分离效率较低;临界粒径的液滴会在离心力的作用下被甩向壁面从而被分离出来。由于流动的复杂性,旋风分离器内部容易出现二次流,通过合理设计旋风分离器的结构,可以有效提高分离效率。In the separation principle of the cyclone separator,the discrete phase numerical model was established.The droplets track in the separator was simulated by FLUENT software,and the separation efficiency was also compared.The results show that the small size droplets has excellent tracing ability,will be discharged from the exhaust port,and has low separation efficiency.The critical size droplets will be dumped to the wall and separated in the centrifugal force.Due to the complexity of the flow,the secondary flow is easy to occur.The separation efficiency will be improved by reasonably designing the cyclone separator structure.

关 键 词：旋风分离器 排汽湿度 湿蒸汽 两相流 

分 类 号：TH237[机械工程—机械制造及自动化]