Abstract：Considering the problem that liquid leaking seriously affects the motor runs in large and medium sized submersible pump for the conventional design of gas-liquid ejectors,a simple structure to facilitate the operation of the liquid leaking excluder devices online was designed.Compressed gas was used as the working fluid to exclude the leaked liquid,and the best working pressure was measured.To optimize the design,under the best working pressure,fixed on the height of 6 m,the flow rate were measured at the length(from nozzle-mixing tube to the nozzle) of 0.8 times,1 times,1.5 times and 3 times of the nozzle diameter respectively.The optimization results show that there exists an optimal size of nozzle-mixing tube for the length of the device with the highest performance.In the experimental tests,the pumping flow rates of water were measured and compared for design optimization.
朱荣生；李继忠；付强；王秀礼. 潜水泵泄漏液体在线排除装置的设计与开发[J]. 排灌机械工程学报, 2008, 26(5): 5-8.
ZHU Rong-sheng, LI Ji-zhong, FU Qiang, WANG Xiu-li. Design and implementation of online liquid leaking excluder device for submersible pump. Journal of Drainage and Irrigation Machinery Engin, 2008, 26(5): 5-8.
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