Huadian Technology ›› 2011, Vol. 33 ›› Issue (3): 60-61.

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Measurement and adjustment for total axial drifting value and working clearance of CHTC5/5SP2 feed pump

HUANG Xianhua   

  1. Xinjiang Huadian Hongyanchi Power Generation Corporation Limited, Urumqi 830047, China
  • Received:1900-01-01 Revised:1900-01-01 Online:2011-03-25 Published:2011-03-25

Abstract: The measurement and adjustment of total axial drifting value and working clearance of feed pump are the important links in feed pump overhaul; and its basic purpose is to make the feed pump impeller to be always in accordance with the center position of the guide vane slot and avoid the friction between the rotating part and the static part of the pump; which will be helpful to enhancing the pump efficiency. According to the equilibrium principle of feed pump, starting from the measurement and adjustment of the axial thrust, combining with the practical working experience, the problems on enhancing the feed pump overhaul quality were expounded. 

Key words: axial force, axial drifting value, clearance, adjustment, measurement method