摘要
为了探究静转子孔面积变化对孔盘式水力测功器性能的影响,利用数值计算的方法,对现有孔盘式水力测功器在不同孔面积条件下的内部流动过程进行分析,得到水力测功器腔室内部的流场和温度场,对比水力测功器进出口温差、流量、扭矩以及吸收功率等参数的变化。结果显示:静转子孔面积的增加会导致水力测功器进出口温差的增大,且大致呈线性关系,而流量的变化幅度较小,维持在20%以内。扭矩与吸收功率随孔面积增加而增大,且增大幅度逐渐减小,孔面积变化的影响不断减弱。
In order to explore the influence of the change of the hole area of the static rotor on the performance of the orifice disc hydraulic dynamometer,the internal flow process of the existing orifice disc hydraulic dynamometer under different hole area conditions was analyzed by numerical calculation,the flow field and temperature field inside the hydraulic dynamometer chamber were obtained,and the changes of parameters such as temperature difference,flow rate,torque and absorbed power at the inlet and outlet of the hydraulic dynamometer were compared.The results show that the increase of the static rotor bore area will lead to the increase of the temperature difference between the inlet and outlet of the hydraulic dynamometer,and the relationship is roughly linear,while the change range of the flow rate is small,which is maintained within 20%.The torque and absorbed power increase with the increase of the hole area,the increasing range gradually decreases,and the influence of the change of the hole area is constantly weakened.
作者
刘闳钊
焦永丰
刘帅
王平
LIU Hong-zhao;JIAO Yong-feng;LIU Shuai;WANG Ping
出处
《节能》
2024年第2期68-71,共4页
Energy Conservation
关键词
水力测功器
孔盘
孔面积
hydraulic dynamometer
hole disc
pore area
