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Bench-Scale Tests Aimed at Finding Rate and Acceleration of Wear Determining Service Life of Thrust Bearing in Submersible Electric Motor

  • V. A. ButorinEmail author
  • I. B. Tsarev
  • R. T. Guseynov
Conference paper
Part of the Lecture Notes in Mechanical Engineering book series (LNME)

Abstract

Thrust bearing is one of the main parts of a submersible electric motor and its service life to a large extent determines the reliability of the entire water pump system. However, the problem of thrust bearing service life in submersible electric motors has not been studied appropriately. In this article, an expression, which allows one to estimate the service life of thrust bearing in submersible electric motor through the initial rate and the acceleration of its wear, has been obtained. The results of the bench-scale tests referred to studying the rate of thrust bearing wear depending on operational factors are presented. Bench-scale tests were based on the experimental design theory. The variation levels of operational factors were determined during the experimental studies on the basis of monitoring water supply wells in the Urals Federal District. To reduce the number of experiments, a fractional factorial experiment with threefold replication has been implemented. It has been revealed that the presence of mechanical impurities in water and water hardness have the greatest effect on the wear rate. It has been shown how to find the initial rate and the acceleration of thrust bearing wear, which determine its service life, on the basis of the experimental dependences of the thrust bearing wear rate on the operational factors with two different operating times of a submersible electric motor. The article will be useful for employees of enterprises engaged in repairing submersible electric motors, as well as for companies involved in operation and maintenance of water pumping units.

Keywords

Submersible electric motor Thrust bearing Service life Bench-scale tests 

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Copyright information

© Springer Nature Switzerland AG 2020

Authors and Affiliations

  • V. A. Butorin
    • 1
    Email author
  • I. B. Tsarev
    • 1
  • R. T. Guseynov
    • 1
  1. 1.South Ural State Agrarian UniversityTroitskRussia

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