摘要
为解决某40 kW发电机组冷却系统水温偏高的问题,通过采用计算流体力学方法开展了该发电机组整机流场分析及阻力部件选型设计。结果表明:测量点风速和温度仿真与实测值基本吻合,验证了机组流场计算结果的可靠性;依据部件阻力分析和机组布局确定了阻力部件结构及风阻大小,阻力部件风阻总和为530 Pa。阻力部件选型设计后整机流场校核及实验验证结果显示散热器风量为7.34 kg/s,水温约为93℃,低于水温报警温度95℃。可见经冷却系统分析及阻力部件选型设计后整机散热改善明显,满足冷却需求。
In order to solve the problem of high water temperature in the cooling system of a 40 kW generator unit,the flow field analysis and resistance component design of the generator unit were carried out by computational fluid dynamics method.The results show that the air velocity and temperature of those measuring points are basically consistent with the measured values,which verifies the reliability of the flow field calculation results of the unit.According to the component resistance analysis and unit layout,the structure and wind resistance of those resistance components are determined.The sum of wind resistance of those resistance components is 530 Pa.The flow field analysis and experimental verification results of the generator unit after the optimization design of resistance components show that the air volume of the radiator is 7.34 kg/s,and the water temperature is about 93℃,which is lower than the water temperature alarm temperature 95℃.It can be seen that the cooling performance of generator unit has improved significantly after the cooling system analysis and resistance component design and it meets the cooling requirements.
作者
曹博涛
谭礼斌
孙宁
袁越锦
CAO Bo-tao;TAN Li-bin;SUN Ning;YUAN Yue-jin(School of Mechanical and Electrical Engineering,Shaanxi University of Science&Technology,Xian 710021,China;College of Art and Design,Shaanxi University of Science&Technology,Xian 710021,China)
出处
《科学技术与工程》
北大核心
2023年第16期6897-6907,共11页
Science Technology and Engineering
基金
国家自然科学基金(51876109)。
关键词
发电机组
流场分析
风阻
风量
结构选型
generator unit
flow field analysis
wind resistance
air quantity
structure selection
作者简介
第一作者:曹博涛(1979—),男,汉族,河南许昌人,硕士,高级工程师。研究方向:机械设计及自动化、动力工程、材料成型。E-mail:Caobotao@sust.edu.cn;通信作者:谭礼斌(1991—),男,汉族,重庆人,工程师,博士研究生。研究方向:热能工程及流体力学。E-mail:1364979930@qq.com。
