Transactions of the Korean Society of Mechanical Engineers B (대한기계학회논문집B)

The Korean Society of Mechanical Engineers (대한기계학회)
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Development of Submersible Axial Pump for Wastewater

폐수 처리용 수중 축류 펌프 개발

  • 윤정의 (강원대학교 삼척캠퍼스 메카트로닉스공학과)
  • Received : 2012.06.19
  • Accepted : 2013.01.24
  • Published : 2013.02.01
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Abstract

This study was performed to develop a high efficiency submersible axial pump for concentration wastewater treatment. To do this, we simulated the effect of some parameters such as the axial twist angle of a blade(${\beta}$), the radial twist angle of a blade(${\alpha}$) and the length of a blade (l) on pump efficiency using commercial code, ANSYS CFX and BladeGen. The results showed that the axial twist angle of a blade(${\beta}$) was the most sensible parameter on the pump efficiency. And the pump efficiency had a maximum at ${\beta}=20^{\circ}$, ${\alpha}=110^{\circ}$ and l=240 mm.

본 연구는 7kW 모터로 $18.5m^3/min$의 유량을 양정(H) 0.5m로 공급할 수 있는 고농도 폐수처리용 3엽 수중 펌프의 블레이드를 개발하는 것을 목표로 한다. 이를 위해 블레이드의 축방향 비틀림 각, 블레이드의 길이 및 반경방향 비틀림 각을 설계변수로 선정하여 이들이 블레이드 효율에 미치는 영향을 상용 해석용 프로그램을 사용한 (ANSYS BladeGen, Turbo Grid, CFX) 전산해석을 통해 수행하였다. 해석 결과 블레이드의 축방향 비틀림각(${\beta}$)가 펌프의 효율에 가장 민감한 변수임을 알 수 있었으며, 축방향 비틀림각 $({\beta})=20^{\circ}$, 반경방향 비틀림 각 $({\alpha})=110^{\circ}$ 그리고 블레이드의 길이 (l)=240 mm 일 때 펌프의 최고 효율을 가지게 됨을 알 수 있었다.

Keywords

References

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Cited by

  1. Performance and Internal Flow Characteristics of an Axial Flow Pump for a Floating Type Water Treatment System vol.17, pp.3, 2014, https://doi.org/10.5293/kfma.2014.17.3.052
  2. Experimental Investigation of the Development of a Rotor Type Slurry Pump vol.39, pp.4, 2015, https://doi.org/10.5916/jkosme.2015.39.4.456
  3. CFD Analysis for Optimization of Guide Vane of Axial-Flow Pump vol.40, pp.8, 2016, https://doi.org/10.3795/KSME-B.2016.40.8.519