Abstract：The failure reason of QDP-200 plastic submersible pump was analyzed by the performance and temperature increase tests.Computational Fluid Dynamics(CFD)simulation is also conducted for the whole flow passage.From the two aspects of tests and the inner flow law,the reasons of the pump′s poor performance are found,which are due to the simplified hydraulic design and ill-match between impellers and volute.Meanwhile,unreasonable modularization manufacture will bring about hidden troubles for the users.Some improving measures and suggestions are presented.
张金凤；袁寿其；陆伟刚. 基于实验和CFD分析的QDP-200电泵故障诊断与改进[J]. 排灌机械工程学报, 2007, 25(1): 9-13.
ZHANG Jin-feng, YUAN Shou-qi, LU Wei-gang. Failure analysis and improvement for QDP-200 submersible pump based on tests and CFD. Journal of Drainage and Irrigation Machinery Engin, 2007, 25(1): 9-13.
