摘要
为了避免水轮发电机组损耗发热过度对正常运行产生威胁,合理地研究和分析运行过程中水轮发电机组散热情况对指导水轮机的调控和运行具有重要意义。文中以泰国国家电力局某发电机组封闭双路径轴向通风系统为例,利用通用热流体计算模型对水轮发电机内部空气流动和发热固体部件进行热流固耦合传热分析,结合水轮发电机组的主要部件表面如定子线棒、转子绕组及定子铁芯速度场、压力场和温度场等热流场的计算结果,定量分析散热系统的温度分布和散热效果,对水轮发电机组散热系统设计和优化具有重要参考价值。
Since excessive heat loss may pose threat to the normal operation of the hydro generator set,reasonable analysis on the heat dissipation of the hydro-generator set under operation is of great significance to the regulation and operation of hydro-turbines.In this article,with the electricity-enclosed double-path axial ventilation system of Thailand Power Authority taken as an example,the general thermal-fluid software Fluent is adopted to analyze the fluid-solid coupling heat transfer of the hydrogenerator’s internal air flow and solid heating parts.In combination with the data on velocity field,pressure field and temperature field of the hydro-generator set’s crucial components,such as stator bars,rotor winding and stator core.The quantitative analysis on the temperature distribution and the effect of heat dissipation provides significant reference for the design and optimization of the hydro-generator set’s cooling system.
作者
童哲铭
马建峰
童水光
李俊杰
张联升
黄清
张昊
唐宁
王寅华
刘思靓
TONG Zhe-ming;MA Jian-feng;TONG Shui-guang;LI Jun-jie;ZHANG Lian-sheng;HUANG Qing;ZHANG Hao;TANG Ning;WANG Yin-hua;LIU Si-liang(School of Mechanical Engineering,Zhejiang University,Hangzhou 310027;Zhejiang Fuchunjiang Hydropower Equipment Co.,Ltd.,Hangzhou 311121;Zhejiang Jinlun Electromechanic Co.,Ltd.,Jinhua 321002;Hangzhou Hangfa Power Equipment Co.,Ltd.,Hangzhou 310026;Hangzhou Liyuan Power Equipment Co.,Ltd.,Hangzhou 311203;Hangzhou Huaruan Technology Co.,Ltd.,Hangzhou 310027)
出处
《机械设计》
CSCD
北大核心
2019年第12期10-14,共5页
Journal of Machine Design
基金
国家自然科学基金资助项目(51821093)
浙江省自然科学基金资助项目(LR19E050002)
浙江省重点研发计划资助项目(2018C01020,2018C01060,2019C01057)。
关键词
通风散热
空冷
热流固耦合
传热计算
热分析
ventilation cooling
air cooling
therm-fluid-solid coupling
heat-transfer calculation
thermal analysis
