夹套结构对核电厂管道冰塞形成过程的影响  

The effect of jacketing on the formation of ice plugs in pipelines in nuclear power plants

作　　者：张维 胡明磊 徐科 田世龙 王立群[3] 冯永强 Zhang Wei;Hu Minglei;Xu Ke;Tian Shilong;Wang Liqun;Feng Yongqiang(CNNC Nuclear Power Operation Management Co.,LTD,Jiaxing,Zhejiang 314300,China;School of Materials Science and Engineering,University of Science and Technology Beijing,Beijing 110000,China;School of Energy and Power Engineering,Jiangsu University,Zhenjiang,Jiangsu 212000,China)

机构地区：[1]北京科技大学材料科学与工程学院,北京100083 [2]中核核电运行管理有限公司,浙江嘉兴314300 [3]江苏大学能源与动力工程学院,江苏镇江212000

出　　处：《佳木斯大学学报（自然科学版）》2024年第11期44-46,50,共4页Journal of Jiamusi University：Natural Science Edition

摘　　要：建立三种夹套模型并通过改变液氮流速、环境温度等探究其对冰塞形成的影响,并计算液氮的消耗量,使用有限元分析软件Fluent模拟得出了管道冰塞形成时间以及对应的温度场和成冰模式图,根据以上结果分析得出环境温度对冰塞形成时间影响在2%-3%,夹套的类型对冰塞形成影响较大,在低液氮流速的情况下最高可达17.78%,在低液氮流速时应选择单进单出类型夹套。The article establishment three kinds of jacket model and by changing the liquid nitrogen flow rate,ambient temperature and so on to explore its impact on the formation of ice plugs,and calculate the consumption of liquid nitrogen,the use of finite element analysis software Fluent simulation of the pipeline ice plugs formation time and the corresponding temperature field and the ice pattern diagram,according to the above results of the analysis of the ambient temperature of the formation of ice plugs formation time in the impact of 2-3%,the type of jacket on the ice plug formation of a greater impact,in the case of low liquid nitrogen flow rate up to 17.78%,at low liquid nitrogen flow rate should be selected single inlet and single outlet type of jacket.The type of jacket has a greater impact on the formation of ice plugs,up to 17.78%in the case of low liquid nitrogen flow rate,in the case of low liquid nitrogen flow rate should choose a single inlet and single outlet type of jacket.

关 键 词：冰塞 夹套结构 液氮流速 FLUENT 

分 类 号：TM623[电气工程—电力系统及自动化]