The issues of ensuring the stable operation of equipment and finding the ways to improve the resource-saving technologies are relevant for "LUKOIL-Ukhta Refinery", LLC, that was the main argument in favor of cooperation with DYNAMICS SPC and implementation of the COMPACS®-RPP system for vibration analysis of rolling bearings.
The COMPACS®-RPP system for vibration analysis of rolling bearings was implemented in our company in 2008, and all works during its introduction and pilot operation was our first and very successful experience of joint work with DYNAMICS SPC.
During this period, 2111 bearings were diagnosed by the system. The quantity and quality of diagnosed bearings are presented in table 1.
||Qty of bearings
||Qty of bearings, exceeded unacceptable values
||% Ratio of bearings, exceeded unacceptable values
The greatest number of bearings – 704 was diagnosed in 2010: 39,77 % of them exceeded the unacceptable values.
Figure 1 presents a histogram of the number of diagnosed bearings by years.
Figure 1 - Histogram of the number of diagnosed bearings by years
Figure 2 presents a histogram of the % ratio of bearings that exceeded unacceptable values by years.
Figure 2 - Histogram of the % ratio of bearings that exceeded the unacceptable values by years
The histograms show that the trend of defective bearings, supplied to "LUKOIL-Ukhta Refinery", LLC, is reducing.
Using the COMPACS®-RPP system in 2008, 28% of the bearings, which was tested to be of a low quality, wasn`t installed in the units of critical equipment and was returned to the suppliers. The bearings, which have passed the acceptance test on the COMPACS®-RPP system, are having a long-time and reliable service in the equipment, confirmed the necessity of this system for "LUKOIL-Ukhta Refinery", LLC.
Authors: Chief mechanic S.A. Mulenkov / 2014
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