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http://dx.doi.org/10.5916/jkosme.2014.38.3.285

An experimental study on influence of wearing seal groove shape to performance of the pump  

Kim, Jun-Ho (R&D 1 Team, R&D Center, Hyosung Goodsprings, Inc.)
Abstract
This paper is related to the improvement of efficiency for high performance centrifugal pumps by reducing leakage loss, which is achieved by applying the grooved seal as a non-contact seal to the pumps. Various combinations of grooved seal types, including the spiral and the parallel groove in the rotor and/or in the stator, were tested by the experiment. And the corresponding hydraulic performance and the magnitude of axial thrust were measured and calculated for ten cases. From the results, the type with the spiral groove(spiral angle : $0.98^{\circ}$) in both the rotor and the stator was found to be most effective. In this case, the head and the efficiency were improved from the original design by 2.1% and 2.3% respectively at design capacity($340m^3/h$), and the axial thrust was decreased by 10%.
Keywords
Wearing seal; Parallel grooved seal; Spiral grooved seal; Leakage; Centrifugal pump;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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