DOI:10.11991/yykj.202304021网络出版地址:https://kns.cnki.net/kcms2/detail/23.1191.U.20230606.1204.004.html安全壳空气冷却系统单面加热对流换热特性研究刘嘉维1,李栋梁1,张卫1,郭泽华2,31.中国核电工程有限公司系统与布置设计所,北京1008402.哈尔滨工程大学核科学与技术学院,黑龙江哈尔滨1500013.黑龙江核动力装置性能与设备重点实验室,黑龙江哈尔滨150001摘要:事故工况下,为将反应堆内的热量从钢制安全壳外表面传至外界环境,模块化小型压水堆核电厂“玲珑一号”(AdvancedChinaPWRLinglongNo.1,ACP100)设置了非能动安全壳空冷系统(passivecontainmentair-coolingsystem,PAS)。单面加热非能动自然循环机理研究是PAS的设计、运行基础,本文通过搭建干式平板加热实验台架,研究分析了不同通道宽度、倾斜角度对PAS换热能力的影响。结果表明:通道宽度减少、高度增加对PAS换热是有利的,自然对流换热能力随通道高宽比成正相关;自然对流换热能力随加热面与水平面倾斜角度的减小增强,当斜度小于15°时,自然对流换热能力提升明显。关键词:ACP100;安全壳空冷系统;非能动;单面加热;自然对流;平板试验;倾斜角度;通道宽度中图分类号:TL48文献标志码:A文章编号:1009−671X(2023)04−0021−05Anexperimentalstudyonheatconvectioncharacteristicsofcontainmentair-coolingsystemwithsingle-sidedheatingLIUJiawei1,LIDongliang1,ZHANGWei1,GUOZehua2,31.ProcessandLayoutDivision,ChinaNuclearPowerEngineeringCo.,Ltd.,Beijing100840,China2.CollegeofNuclearScienceandTechnology,HarbinEngineeringUniversity,Harbin150001,China3.HeilongjiangProvincialKeyLaboratoryofNuclearPowerSystem&Equipment,Harbin150001,ChinaAbstract:Underaccidentconditions,inordertotransferreactorheatfromtheoutersurfaceofthesteelcontainmenttotheenvironment,AdvancedChinaPWRLinglongNo.1(ACP100)isequippedwithapassivecontainmentaircoolingsystem(PAS).Theresearchonthenaturalconvectionmechanismofpassivenaturallycirculationwithsingle-sidedheatingisthebasisforthedesignandoperationofPAS.Bybuildingdry-typeflat-platefoundationtestbench,thispaperanalyzestheeffectsofthechannelwidthandinclinationangleontheheattransfercapacityofnaturalconvectionofPASsystem.Theresultshowsthatthereductionofchannelwidthandi...