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| Experiment for axial thrust of multi-stage pump for seawater desalination |
| He Yujie,Zhou Guangfeng,Pan Jinqiu,Yang Sunsheng,Wang Jun |
| (Technical and Research Center of Fluid Machinery Engineering,Jiangsu University,Zhenjiang,Jiangsu 212013,China) |
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Abstract By experimental investigation on the axial force for a single-stage model pump of the seawater desalination multi-stage pump,the relationship among the chamber pressure,the pump capacity,the head,and the radius was found out,which can be used to revise the traditional axial thrust formula.There are great differences between the results calculated from the traditional formula and the test ones.The reason is that the traditional formula is under the assumption that the liquid in the pump chamber is rotating at ω/2;however the trends of the axial thrusts in the two results are identical,they all reach the biggest value at the point without flow.The calculated values of the revised formula agree well with that from test at all flow rates and radius.
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Received: 25 February 2009
Published: 30 March 2009
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