HTR-PM主氦风机电机冷却性能分析
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摘要
HTR-PM(high temperature reactor-pebblebed modules)主氦风机是高温气冷堆的重要部件,使用氦气作为工作介质。由于空间结构限制,主氦风机采用了自带风冷的一体化结构,通过专设冷却装置将电机热量带出。为了能针对性地设计辅助叶轮,需要得到电机冷却流道的流动特性和传热特性等热工参数。该文针对主氦风机特殊的冷却流道进行了实验研究,通过对氮气工质下的实验获得了HTRPM的特殊风冷系统的流动特性和传热特性,并向氦气工质下的特性进行类推。根据实验分析和理论计算,给出了冷却系统的优化方案。该方案将为下一步HTR-PM主氦风机辅助叶轮的设计和优化提供重要基础。
The helium circulator is an important part of the HTR-PM which uses helium as its working medium.Due to the limited space in the HTR-PM,the main helium fan uses a self-contained,air-cooled integrated structure to remove the motor heat.The auxiliary impeller design is then based on the flow characteristics and heat transfer characteristics of the motor cooling flow.Experiments using nitrogen as the working fluid were conducted to study the flow and heat transfer characteristics of the HTR-PM air-cooling system with the results extended to the helium working fluid. The experimental and theoretical results were used to optimize the cooling system design for the next HTR-PM main helium turbine auxiliary impeller design and optimization.
The helium circulator is an important part of the HTR-PM which uses helium as its working medium.Due to the limited space in the HTR-PM,the main helium fan uses a self-contained,air-cooled integrated structure to remove the motor heat.The auxiliary impeller design is then based on the flow characteristics and heat transfer characteristics of the motor cooling flow.Experiments using nitrogen as the working fluid were conducted to study the flow and heat transfer characteristics of the HTR-PM air-cooling system with the results extended to the helium working fluid. The experimental and theoretical results were used to optimize the cooling system design for the next HTR-PM main helium turbine auxiliary impeller design and optimization.
引文
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[3]张跃学,郭捷,赵勇.一种多级轴流压气机特性预估方法探讨[J].航空科学技术,2011(4):65-67.ZHANG Y X,GUO J,ZHAO Y.Discussion on a method of predicting the characteristics of multistage axial flow compressor[J].Aeronautical Science and Technology,2011(4):65-67.(in Chinese)
[4]程荣辉.轴流压气机设计技术的发展[J].燃气涡轮试验与研究,2004,17(2):1-8.CHENG R H.Development of axial flow compressor design technology[J].Gas Turbine Experiment and Research,2004,17(2):1-8.(in Chinese)
[5]朱荣凯.氦气轴流压气机相似模化研究[D].哈尔滨:哈尔滨工程大学,2008.ZHU R K.Similar modeling of helium axial compressor[D].harbin:Harbin Engineering University,2008.(in Chinese)
[6]陈夷华,王捷,张作义.高温气冷堆回热循环及透平机组的初步研究[J].原子能科学技术,2003,37(5):451-455.CHEN Y H,WANG J,ZHANG Z Y.Preliminary study on regeneration cycle and turbine unit of high temperature gas-cooled reactor[J].Atomic Energy Science and Technology,2003,37(5):451-455.(in Chinese)
[7]清华大学核能设计研究院.华能山东石岛湾电厂高温气冷堆核电站示范工程初步设计总说明书[R].北京:清华大学核能设计研究院,2008.Institute of Nuclear and New Energy Technology,Tsinghua University.Preliminary Design General Instructions of HTR-PM[R].Beijing:Institute of Nuclear and New Energy Technology,Tsinghua University,2008.(in Chinese)
[8]袁新,林智荣,赖宇阳,等.透平叶片的气动优化设计系统[J].热力透平,2004,33(1):8-13.YUAN X,LIN Z R,LAI Y Y,et al.Aerodynamic optimization design system of turbine blade[J].Thermal Turbine,2004,33(1):8-13.(in Chinese)
[9]王大中,吕应运.我国能源前景与高温气冷堆[J].核科学与工程,1993,13(4):2-7.WANG D Z,LV Y Y.Chinas energy prospect and high temperature gas-cooled reactor[J].Chinese Journal of Nuclear Science and Engineering,1993,13(4):2-7.(in Chinese)
[10]吴宗鑫,张作义.先进核能系统和高温气冷堆[M].北京:清华大学出版社,2004.WU Z X,ZHANG Z Y.Advanced nuclear energy systems and high temperature gas-cooled reactors[M].Beijing:Tsinghua University Press,2004.(in Chinese)
[11]张勤昭,曹树良,祝宝山,等.高比转速混流泵叶轮正反问题计算[J].清华大学学报(自然科学版),2007,47(9):1435-1438.ZHANG Q Z,CAO S L,ZHU B S,et al.Calculation of forward and inverse problem of impeller of high specific speed mixed flow pump[J].Journal of Tsinghua University(Science&Technology),2007,47(9):1435-1438.(in Chinese)
[12]邹德宝.高温气冷堆核电站示范工程主氦风机技术概述[J].防爆电机,2011,46(4):5-7.ZOU D B.Technical summarization of main helium fan for HTR-PM[J].Explosion-proof Electric Machine,2011,46(4):5-7.(in Chinese)