Open AccessThe Flow-Heat Coupling Study of Cooling Circulating Channel of Magnetic Drive Pump
Author(s) -
Zhisheng Gao,
Jianbo Zhang,
Wenyang Li,
Jintao Liu,
Changqing Si,
H. Q. Feng,
Jianrui Liu,
Xiaotao Shi
Publication year - 2021
Publication title -
mechanika
Language(s) - English
Resource type - Journals
eISSN - 2029-6983
pISSN - 1392-1207
DOI - 10.5755/j02.mech.29651
Subject(s) - mechanics , coupling (piping) , water cooling , materials science , heat transfer , heat transfer coefficient , centrifugal pump , magnetic bearing , heat exchanger , magnet , mechanical engineering , engineering , physics , impeller
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.