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| The Present Status and Development of Self-priming Pump |
| LV Zhi-jun 1, LAN Cai-you 2, WANG Fu-jun 1 |
| 1.China Agriculture University, Beijing, 100083, China; 2. Chinese Academy of Agriculture Mechanization and Science, Beijing, 100083, China |
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Abstract Self-priming pumps are widely used in sprinkler irrigation and fire protection business. Its recent research achievements were summarized and analyzed, including the building of mathematical models and maximum priming lift, the analysis of self-priming performance influencing factors, the discussion of size and position of return-flow hole as well as the separation tongue gap, the volume of water pre-stored and air- liquid separated chamber inside the pump, the influencing mechanism of shaft sealing and suction line’s leak tightness along with the pipe length under liquid and the volume of suction line on self-priming performance. Some key issues for further research of self-priming pump are discussed as well.
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Received: 08 August 2013
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