Abstract：The axial thrust is always a problem which researcher pay attention to. The former researcher has brought forward many methods of balancing axial thrust of the pump. In this paper the theory is proved that increasing back sealing ring can balance the axial thrust, and the theory is testified by quoting experiment result of literature. This method is simply in practice and can realize pump operation under negative axial thrust.
李琪飞；刘在伦；李仁年；陈云富. 加大叶轮后密封环平衡轴向力的理论分析[J]. 排灌机械工程学报, 2004, 22(4): 1-2.
LI Qi-fei, LIU Zai-lun, LI Ren-nian, CHEN Yun-fu. Theoretical Research the Balancing Axial Thrust by Increasingthe Back Sealing Ring of the Impeller. Journal of Drainage and Irrigation Machinery Engin, 2004, 22(4): 1-2.
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