摘要
为建立针对液环泵复合叶轮长短叶片的设计方法,提高液环泵的效率和入口真空度,采用理论推导的方法得出液环泵复合叶轮叶片数、短叶片进出口偏置角和直径的计算公式,并采用实验和数值仿真相结合的方法验证该方法的准确性。结果表明:设计的复合叶轮液环泵在0.02、0.035和0.05 kg·s^(–1)流量工况处的效率分别提高了2%、1.4%和4.3%,真空度分别提高了4.12、3.1和2.21 kPa;复合叶轮液环泵的内流场分布更加均匀,泵内流动损失降低,该方法设计的液环泵复合叶轮具有较好的水力性能。
In order to establish the design method of the liquid-ring pump with splitter blades so that improve the efficiency and inlet vacuum of the liquid ring pump,the formulas of blade number,the offset angle of the inlet and outlet of the short blade and the diameter of the inlet and outlet of the short blade were obtained by theoretical derivation.The accuracy of design theory was verified by using the method of combining experiment and numerical simulation.Compared with the original model,the efficiency of the liquid-ring pump with splitter blades at 0.02,0.035 and 0.05 kg·s^(–1) is increased by 2%,1.4%and 4.3%,and the vacuum is increased by 4.12,3.1 and 2.21 kPa.The internal flow field distribution of the liquid-ring pump with splitter blades designed according to this method is more uniform,the flow loss in the pump is reduced.The liquid-ring pump with splitter blades designed by this method has great hydraulic performance.
作者
李瑞卿
张人会
钟于秀
高亮德
刘桂洪
LI Ruiqing;ZHANG Renhui;ZHONG Yuxiu;GAO Liangde;LIU Guihong(Beijing Aerospace Propulsion Technology Co.,Ltd.,Beijing 100023 China;State Key Laboratory of Gansu Fluid Machinery and Systems,Lanzhou 730050 China;College of Energy and Power Engineering,Lanzhou University of Technology,Lanzhou 730050 China;College of Tropical Agriculture and Forestry,Hainan University,Haikou 570100 China;Guizhou Aerospace Chaoyang Technology Co.,Ltd.,Zunyi 563000 China)
出处
《西华大学学报(自然科学版)》
2025年第5期23-30,共8页
Journal of Xihua University:Natural Science Edition
基金
国家自然科学基金项目(51979135)。
关键词
液环泵
复合叶轮
短叶片进出口偏置角
叶片数
短叶片进出口直径
liquid-ring pump
impeller with splitter blades
short blade inlet and outlet offset angle
number of blades
short blade inlet and outlet diameter
