Analysis and Control of Axial Thrust in Centrifugal Pump by Use of J-Groove

• Abe, Heishiro

• Matsumoto, Kazunari

• Kurokawa, Junichi

• Matsui, Jun

• Choi, Young-Do

抄録

In order to control and balance axial thrust of turbo machine, many types of balancing devices are used but most of them are complicated and sometimes cause troubles. In this study, a very simple device of using shallow grooves mounted on a casing wall, known as "J-Groove", is proposed and studied experimentally and theoretically. The result shows that 70% of axial thrust in an industry, 4-stage centrifugal pump can be reduced at the best efficiency point. Moreover, the analytical method of "interfered gap flow" is established and a simple formula which can determine the optimum dimension of groove and its location is proposed.

収録刊行物

• Proceedings of the 23rd IAHR Symposium on Hydraulic Machinery and Systems, Yokohama, October 2006

  Proceedings of the 23rd IAHR Symposium on Hydraulic Machinery and Systems, Yokohama, October 2006 2006

  International Association of Hydraulic Research (IAHR)

キーワード

• Centrifugal Pump
• Axial Thrust
• J-Groove
• Thrust Balancing Device
• Boundary layer

詳細情報

• CRID: 1050292572108985728
• NII論文ID: 120006670531
• Web Site: http://hdl.handle.net/10131/3700
• 本文言語コード: en
• 資料種別: conference paper
• データソース種別:
  • IRDB
  • CiNii Articles