The Wear Features and Destruction Mechanisms of the Working Stages High-Speed Pump

The results of research on the modernized SKI LX bench, which provides addition to the model fluid of various kinds of abrasive particles, the nature and properties of which can correspond to real operating conditions, are presented. In developing the program and methodology of these studies, used the after exploitation analysis of high-speed pumping units carried out at the fields of various companies in the Russian Fed-eration. The features of wear and the mechanisms of destruction of the working stages of the high-speed pump series 92ELNC85-2250-e2OE-10ETS were investigated. On a real design of a high-speed pump the possibility to determine the wear rate of tribo-contraction elements by the method of its weight determination with a forecast for the resource and to reveal the ways of its increase in a wide range of the number of suspended abrasive particles in the model fluid, and in particular, in water is shown. The results obtained in this work are the basis for the development of scientifically based methods for studying the wear resistance of bearing assemblies of high-speed centrifugal pumps in conditions of a wide variety of reservoir fluids and suspended particles contained in them.

1. Drozdov A.N., Lyapkov P.D., Igrevsky V.I. Dependence of the degree of influence of the gas phase on the operation of a submersible centrifugal pump on the foaming of the liquid // Oilfield business. — M.: VNIIOENG. — 1982, № 10, 16—18 (in Russian)

2. Drozdov A.N., Igrevsky V.I. Bench tests of separators 1MNG5 and MN-GSL5 for submersible centrifugal pumps. — Oil industry. — M.: CJSC Publishing House “Oil industry”. — 1994, № 8, 44—48 (in Russian)

3. Murakami М., Suehiro Н., Jsaji Т., and Kajita J. Flow of Entrained Air in Centrifugal Pumps // 13th Congr. Intern. Assoc. Hydraul Res., Kyoto. — 1969 (2), 71—79

4. Angus R.W. What Air Leakege Does to a Centrifugal Pump // Power. — 1928, no. 4, July 24, 149—151

5. Gangrade A.K., Phalle V.M., Mantha S.S., and Siddiquee A.N. Influence of Eccentricity Ratio on Stability Performance of Hydrodynamic Conical Journal Bearing // Journal of Physics: Conference Series. 2, Advances in Mechanical Engineering. Сер. “2nd International Conference on New Frontiers in Engineering, Science and Technology, NFEST 2019”. — 2019, 012115

6. Xu J., Wang W., Zhang C., and Wang J. Experimental Investigations of Novel Compound Bearing of Superconducting Magnetic Field and Hydrodynamic Fluid Field // IEEE Transactions on Applied Superconductivity. — 2020 (30), no. 1, 8794543

7. Majorov S. On Finite Element Model for Hydrodynamic Journal Bearing with Micropolar Lubrication // Proceedings of 10th International Scientific Conference BALTTRIB 2019. 10. — 2019, 202—208

8. Cheremisinov E.M. and Splavskiy I.S. Testing Procedure for the Tribological Properties of Axial Bearings // Journal of Machinery Manufacture and Reliability. — 2023, no. 52, 281—285. https://doi.org/10.3103/S1052618823020024

9. Splavskiy I.S. Study of the Performance of Highly Loaded Axial Bearings of Pumps in the Nuclear Industry Depending on Operating Conditions // Journal of Machinery Manufacture and Reliability. — 2023, no. 52, 705—712. https://doi.org/10.1134/S1052618823070233

10. Gorelov A.E., Dengaev A.V. Express methodology for selecting layouts of high-speed pumping units for pumping gas-liquid mixtures // An oil engineer. — 2020, № 4, 55—62 (in Russian)

11. Smirnov N.I. and Grigoryan E.E. Study of the Impact of Wear of Movable Interfaces on Failures of an Immersible Electrically Operated Vane Pump for Oil Extraction // Journal of Machinery Manufacture and Reliability. — 2019 (48), no. 1, 79—83. DOI: 10.3103/S105261881901014X