Abstract:To investigate the influence of blade number match of impeller and guide vane on the performance of submersible pump, 9 submersible pump models with different blades were designed based on the prototype pump(the numbers of impeller blade and guide vane are 7 and 8). And the flow field in the first two levels of submersible pump was numerically calculated based on time-ave-raged N-S equation and the Spalart-Allmaras turbulence model. The numerical curves of head and efficiency with capacity were obtained. It is found that when the numbers of impeller blades are 6 and the guide vanes are 8, the submersible pump can get the best overall performance. The performance of the optimal submersible pump increases by 2.61%. The centrifugal pump head improves 0.574 m. Compared with prototype, the high-pressure area in the optimal model is larger. And it has little influence on the distribution of velocity when changing the blade number. The characteristic curves of prototype achieved by numerical simulation basically agree with those by the experiment.
葛明亚*, 崔宝玲, 方晨. 潜水离心泵叶轮叶片数及导叶叶片数的匹配[J]. 排灌机械工程学报, 2018, 36(12): 1240-1245.
GE Mingya*, CUI Baoling, FANG Chen. Blade number match of impeller and guide vane of submersible centrifugal pump. Journal of Drainage and Irrigation Machinery Engin, 2018, 36(12): 1240-1245.
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