基金项目:国家电网公司总部科技项目-基于多场协同理论的高温大负荷户内变电站降噪技术研究（5226SX21001C）变压器用翅片式散热结构数值模拟研究王绿1，耿明昕1，赵亚林1，王莹2，苗阿乐2，杨鹏2（1.国网陕西省电力有限公司电力科学研究院，陕西西安710000；2.西安交通大学热流科学工程教育部重点实验室，陕西西安710049）摘要：为了提高变压器片式散热器散热能力，本文将传统的片式散热结构和翅片相结合，构建翅片式散热片模型，利用有限元分析软件Fluent，分别对翅片式散热片和普通式散热片模型进行自然油循环下自冷和风冷散热数值模拟研究。在自然油循环自冷情况下，随油速增大，翅片式散热片换热量较普通式提高了约58%~62%。在自然油循环风冷情况下，随着风速增大，翅片式散热片换热量较普通式提高了28%~48%；随油速增大，翅片式散热片换热量较普通式提高了22%~33%。翅片式散热片散热性能有明显提高。研究结果为片式散热结构的优化设计提供了指导作用。关键词：变压器；翅片式散热片；散热性能；数值模拟形中图分类号：TM401+.1文献标识码：B文章编号：1001－8425（2023）03－0023－06NumericalSimulationofFinnedHeatDissipationStructureforTransformerWANGLv1,GENGMing-xin1,ZHAOYa-lin1,WAGNYing2,MIAOA-le2,YANGPeng2（1.StateGridShaanxiElectricPowerResearchInstitute,Xi'an710000,China;2.KeyLaboratoryofThermo-FluidScienceandEngineeringofMOE,Xi'anJiaotongUniversity,Xi'an710049,China）Abstract：Inordertoimprovetheheatdissipationcapacityofthemaintransformerfinra-diator,thecombinationofthetraditionalfintypeheatdissipationstructurewiththefinsistakentobuildthefintypeheatdissipationmodel.UsingthefiniteelementanalysissoftwareFLUENT,thenumericalsimulationofairnaturalcoolingandairforcedcoolingheatdissipationunderoilnaturalcirculationiscarriedoutforthefintypeheatdissipa-tionmodelandtheordinaryheatdissipationmodel.Inthecaseofnaturaloilcirculationwithairnaturalcooling,withtheincreaseofoilspeed,theheattransferoffintypeheatsinkisabout58%~62%higherthanthatofordinarytype.Inthecaseofnaturaloilcir-culationwithairforcedcooling,withtheincreaseofwindspeed,theheatexchangeoffintypeheatsinkis28%~48%higherthanthatofordinarytype;withtheincreaseofoilvelocity,theheattransferoffin...
