International Journal of Fluid Machinery and Systems

Korean Society for Fluid machinery (한국유체기계학회)
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Matching Diffuser Vane with Return Vane Installed in Multistage Centrifugal Pump

  • Kawashima, Daisuke (Graduate, Graduate School of Engineering, Kyushu Institute of Technology) ;
  • Kanemoto, Toshiaki (Faculty of Engineering, Kyushu Institute of Technology) ;
  • Sakoda, Kazuyuki (Research & Development Department, Torishima Pump Manufacturing Co., Ltd.) ;
  • Wada, Akihiro (Research & Development Department, Torishima Pump Manufacturing Co., Ltd.) ;
  • Hara, Takashi (Research & Development Department, Torishima Pump Manufacturing Co., Ltd.)
  • Received : 2008.06.19
  • Accepted : 2008.09.12
  • Published : 2008.08.01
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Abstract

The effects of the diffuser vane on the performances of the multistage centrifugal pump were investigated experimentally, taking account of the interactions among the diffuser vane, the return vane, and the next stage impeller. It is very important to match well the diffuser vane with the return vane, for improving the hydraulic efficiency of the pump. The efficiency may be more improved by making the cross-sectional area of the channel from the diffuser vane outlet to the return vane inlet larger, as much as possible.

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References

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