Journal of the Korean Society of Manufacturing Process Engineers (한국기계가공학회지)

The Korean Society of Manufacturing Process Engineers (한국기계가공학회)
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Numerical Study on the Erosion Tendency of Centrifugal Slurry Pump Impeller for Thermal Power Plants

화력발전소용 원심 슬러리 펌프 임펠러의 침식경향 해석적 연구

  • Cheon, Min-Woo (Department of Construction Machinery Engineering, Inha University) ;
  • Lee, Chul-Hee (Department of Mechanical Engineering, Inha University)
  • 천민우 (인하대학교 건설기계공학과) ;
  • 이철희 (인하대학교 기계공학과)
  • Received : 2021.07.26
  • Accepted : 2021.09.27
  • Published : 2022.02.28
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Abstract

Centrifugal pumps are typically used in many slurry industries to transport solid materials. Solid particles in the slurry frequently shock the walls inside the pump, significantly abrading the flow path. Wear damage causes replacement of the pump components, which wastes manpower and time. Therefore, previous studies have been conducted on factors to improve efficiency and life time. This study identifies trends in pumps supplying lime to desulfurized devices from thermal power plants. The shear stress transport(SST) model is used to determine the erosion trend of the centrifugal pump that transfers lime slurry. The purpose of this study is to identify efficiency and erosion trends by selecting three of the various impeller design elements. The three impeller blade design variables mentioned above represent the inlet draft angle and blade angle of leading edge(L.E) and trailing edge(T.E). The maximum value of the erosion density rate tends to be similar to the Input power.

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References

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