EFFECT OF THE OIL FLOW RATE ON THE RESULT OF THE DETECTION OF WEAR PARTICLES OF FRICTION PAIRS IN LUBRICATION SYSTEMS OF POWER PLANTS
S.Yu. Borovik1,2, O.A. Zayakin1,2, P.E. Podlipnov1,2, Yu.N. Sekisov1,2
1Samara Federal Research Scientific Center, Russian Academy of Science, Samara, Russia
2Institute for the Control of Complex Systems, Russian Academy of Sciences, Samara, Russia
Keywords: power plant, lubrication system, friction pair, wear particle, cluster single-coil eddy-current sensor, particle’s speed, effect on the result of the conversion of sensor signals, recognizing and assigning algorithm, operational correctness
Abstract
The problem of monitoring the metal particles of friction pairs’ wear in lubrication systems of power plants is considered. The solution is proposed on the base of a multi-channel cluster eddy current sensor with single-coil sensitive elements. The sensor is installed in the oil pipeline break and provides the identification of ferromagnetic and non-ferromagnetic metal particles, as well as their ranking by several size groups. The features of the conversion of sensing elements’ inductances in differential measuring circuits during the movement of metal particles through the oil channel of the sensor are considered. The effect of the particles’ speed in the oil flow on the result of the conversion of sensor signals is analyzed. The algorithm for recognizing and assigning metal particles to specified size groups is given. Considering the possible effect of the particles’ speed on the result of the conversion of sensor signals, the operational correctness of the algorithm is evaluated.
|
