转速对海水泵内部空化影响的实验研究  

Experimental Study on the Effect of Rotational Speed on Cavitation in Seawater Pump

作　　者：万喆[1,2] 张培珍 刘耀卓 刘世琦 WAN Zhe;ZHANG Pei-zhen;LIU Yao-zhuo;LIU Shi-qi(Lanzhou University of Technology,College of Energy and Power Engineering,Lanzhou 730050,China;Gansu Province Research Center of Hydraulics and Pneumatics Engineering Technology,Lanzhou 730050,China)

机构地区：[1]兰州理工大学能源与动力工程学院,甘肃兰州730050 [2]甘肃省液压气动工程技术研究中心,甘肃兰州730050

出　　处：《液压气动与密封》2021年第5期16-20,共5页Hydraulics Pneumatics & Seals

基　　金：国家重点研发计划(2016YFC0304800)。

摘　　要：海水泵在吸水过程中,泵内空化现象会直接影响海水泵吸水性能,使容积效率下降。该文针对海水泵内部空化现象,设计了单柱塞海水泵吸水过程可视化实验装置,通过高速摄像系统得到泵内空化流动的图像数据,讨论了在海水泵吸水过程泵内部流道的空化特征,研究了转速对海水泵内部空化现象的影响。结果表明,随着转速的增加,海水泵内空化流动速度加快,空化范围增大,气泡脱落周期变短。During the seawater pump s water absorption process,the cavitation phenomenon in the pump will directly affect the seawater pump s water absorption performance,and the volumetric efficiency will decrease.Aiming at the phenomenon of cavitation in the seawater pump,a visual experimental device for the suction process of the single plunger seawater pump was designed.Image data of cavitation flow in the pump was obtained through the visualization experiment.The effect of rotational speed on cavitation in the seawater pump.The results show that as the rotational speed increases,the cavitation flow rate in the seawater pump increases,the cavitation range increases,the bubble shedding period becomes shorter.

关 键 词：海水泵 空化 实验研究 转速 

分 类 号：TH137[机械工程—机械制造及自动化]