The Flow-Heat Coupling Study of Cooling Circulating Channel of Magnetic Drive Pump

Authors

  • Zhenjun GAO College of Mechanical and Power Engineering/ Engineering Research Center of Eco-environment in Three Gorges Res-ervoir Region, Ministry of Education, China Three Gorges University
  • Jianbo ZHANG College of Mechanical and Power Engineering, China Three Gorges University
  • Wenyang LI College of Mechanical and Power Engineering, China Three Gorges University
  • Jintao LIU Beijing Institute of Control Engineering
  • Changqing SI College of Mechanical and Power Engineering, China Three Gorges University
  • Feng HONG College of Mechanical and Power Engineering in Three Gorges Reservoir Region, China Three Gorges University
  • Jianrui LIU Research Center of Fluid Machinery Engineering and Technology, Jiangsu University
  • Xiaotao SHI Engineering Research Center of Eco-environment in Three Gorges Reservoir Region, Ministry of Education, China Three Gorges University

DOI:

https://doi.org/10.5755/j02.mech.29651

Keywords:

magnetic drive centrifugal pump, cooling circuit channel, flow-heat coupling, convection heat transfer, numerical calculation

Abstract

The medium in the cooling circulation channel of the magnetic drive centrifugal pump will take away the heat generated by the magnetic eddy current and bearing friction in time to avoid the high temperature demagnetization phenomenon of the permanent magnets. Therefore, the reasonable design of the cooling circulation channel directly affects the stable operation of the magnetic drive centrifugal pump. In this paper, the heat exchange and temperature distribution in the cooling circulating channel of magnetic drive pump are studied by means of numerical calculation of fluid-heat coupling and external characteristic test. The temperature distribution and development law of the isolation sleeve clearance, the bottom of the isolation sleeve and the reflow hole are analysed emphatically, and the convection heat transfer coefficient distribution in the isolation sleeve clearance is studied.

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Published

2021-08-27

Issue

Vol. 27 No. 4 (2021)

Section

MECHANICS OF FLUIDS AND GASES