本文用不同粘度的液体对单螺杆泵的外特性和汽蚀特性进行了实验研究,分析了外特性曲线的变化特点,讨论了粘度变化对特性和能量分配的影响,并对单螺杆泵的汽蚀特性曲线和汽蚀条件下的能量平衡关系进行了初步的分析和探讨。 In this paper, the external characteristics and cavitation characteristics of single screw pump with different viscosities were studied experimentally. The characteristics of the external characteristic curves were analyzed. The effects of viscosity changes on the characteristics and energy distribution were discussed. Corrosion characteristic curves and the energy balance under cavitation conditions were analyzed and discussed.