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| Analysis the Cracks of Pump Blades in Dongshen Pump Station |
| LI Ying-chun1, LI Tian-xiang1, ZHANG Qiong2, GONG Li2 |
| 1. Guangdong Yuegang Water Supply Co. Ltd., Shenzhen, Guangdong 518021, China; 2. Dongfang Electric Motor Co. Ltd, Deyang, Sicuan 618000, China |
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Abstract Due to the cracks of axial pump blades in Dongshen pump station, analysis on flow dynamics, structure strength and vibration for the pump runner, is finished by finite element method. Furthermore, the vibration and pressure fluctuation of the pump at site are measured. The measures are adopted such as cutting the sharp angles between the blades outlet and the runner hub, welding support bands with the edges of the suction side of the blades. The cracks are effectively prevented.
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Received: 07 August 2013
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| [1] 徐纪方,等.水力机械强度计算[M].北京:机械工业出版社,1990[2] и п иванценкои,с косач.提高转浆式水轮机叶片运行的可靠性[J].国外大电机,1983 |
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