•  
  •  
 

Irrigation and Melioration

Abstract

Cavitation occurrence in hydroabrasive flows which can lead to rather complex phenomena and complicate the understanding of the process essence is considered in the paper. To date, the wear of operating units in centrifugal and axial pumps, depending on the mode of their operation, has not been sufficiently studied and the methods to choose the operating modes considering the wear of their parts have not been developed. The paper presents the results of comprehensive laboratory and field studies on the wear rate of units in the flow part of centrifugal and axial pumps. An alternating pulsating load leads to an increase in the interaction force of the hydroabrasive flow with the chamber surface and by 10% increases its wear, reducing the pumping device productivity to 9%.

References

1. Mamajonov M. Uralov B. Gidroabrazivnyy iznos elementov protochnoy chasti tsentrobezhnykh i osevykh nasosov. [Hydroabrasive wear of the elements of the flow part of centrifugal and axial pumps]. Science-tech.J. Fergana. 2003. No. 3. Pp. 30-35 (in Russian). 2. Bogachev I.N. et al. Gidroabrazivnaya stojkost' khromomargantsevykh staley [Hydroabrasive resistance of chrome-manganese steels]. Power engineering. 1987. - No 7. Pp.75-79 (in Russian). 3. Glovatsky O. Uralov B. Ergashev R. Reliability assessment and measures for resources-saving on water lifting engine systems in the Republic of Uzbekistan. Perspectives of innovations. //Economics and Business International Gross-Industry Research Journal, Volume 4., (Issue 1), 2010, Pp. 118-120. 4. Abduramanov A.A. Gidravlika gidrotsiklonov i gidrotsiklonnykh nasosnykh ustanovok [Hydraulics of hydrocyclones and hydrocyclone pump installations]. Monograph. Parts 1 and 2. Almaty: Gylym, 1993. Pp. 353 (in Russian). 5. Abduramanov A.A., Abirov A.A., Abduramanov E.A. Struynye nasosy. Gidrotsiklonnye nasosnye ustanovki. Nasosnye stantsii. [Jet pumps. Hydrocyclone pumping units. Pumping stations]. Analytical review. Taraz, 2003. Pp. 32 (in Russian). 6. Kos'min V. G., Pacera S. T., Protsiv V. V. Analiz prichin nedostatochnoy iznosostoykosti detaley nasosov dlya gidroabrazivnykh smesey. //Sovremennye innovatsionnye tekhnologii podgotovki inzhenernyh kadrov dlya gornoy promyshlennosti i transporta. [Analysis of the reasons for the lack of wear resistance of pump parts for waterjet mixes]. 2015. No. 1. Pp. 83-89. 7. Mamajonov M., Uralov B., Tursunov H. Izmenenie vodopodachi nasosov. [Change in the water supply of pumps]. Journal Agriculture of Uzbekistan. 2005. No. 1. Pp. 28-29 (in Russian). 8. Mamajonov M. Opredelenie vodopodachi tsentrobezhnykh i osevykh nasosov, primenyaemykh dlya poliva sel'khozkul'tur [Definition of water supply of centrifugal and axial pumps used for irrigation of crops]. Bulletin of agrarian science of Uzbekistan. 2003. № 1. p. 94-97 9. Mamajonov M. Uralov B.R. Analiz ekspluatatsionnykh usloviy raboty nasosnykh stantsiy sel'skokhozyaystvennogo naznacheniya. [Analysis of the working conditions of pumping stations for agricultural purposes]. Reporter of agrarian science of Uzbekistan. 2004. № 1. p.77-80 10. Volkov P.M. Modelirovanie zapylennykh potokov i ego prakticheskoe prilozhenie. [Modeling of dusty streams and practical application]. "The theory of similarity and modeling." - M.:1989. Pp.75-82 (in Russian). 11. Kim V.A., Kabulov I.N. Opyt ekspluatatsii tsentrobezhnykh nasosov D4-125-0 na nasosnoy stantsii «Kokayty» [Experience of operation of centrifugal pumps D4-125-0 at the pump station "Kokayty"] Land reclamation and water management. 1991. No. 5. Pp. 37-39 (in Russian). 12. Mamajonov M., Sudakov V.P. Kavitatsionno-abrazivnyy iznos detaley protochnoy chasti osevykh nasosov na meliorativnykh nasosnykh stansiyakh [Cavitation-abrasive wear of units of the flow-through part of axial pumps at ameliorative pumping stations]. Design, construction and operation of hydro-technical structures and pumping stations in the conditions of Uzbekistan: TIIAME. Tashkent. 1984. No. 135. Pp. 95-100 (in Russian). 13. Volodin A. Ju., Nazarov V. P., Bocherikova Ja. V. Vlijanie geometricheskikh razmerov beskontaktnykh uplotneniy na KPD tsentrobezhnykh nasosov //Reshetnevskie chtenija. – 2014. – T. 1. – №. 18.[Influence of the geometric dimensions of non-contact seals on the efficiency of centrifugal pumps] Reshetnev readings. - 2014. - V. 1. - No. 18. Pp. 257-261 (in Russian). 14. Wagner H. Boitrag zur Abflusberechnung offoner Gerinne. Wissensehaftliche Zeitschrift der Technischen Universitat Dresden. 1972, Heft 3, Pp. 641-648. 15. Troitskiy V.P., Uralov B.R. Vliyanie formy beznapornogo tsilindricheskogo kanala i sherokhovatosti na poteri napora. [Influence of the shape of the free-flow cylindrical channel and roughness on the head loss]. Protection of the environment from industrial emissions pollution from pulp and paper industry, Interuniversity collection of scientific papers, issue. 9, Leningrad. 1981. Pp. 142-147 (in Russian). 16. Vasil'ev A. A., Igoshin D. N., Gorin L. N. Vliyanie kavitatsionno-abrazivnogo iznosa na shnekovye nasosy [Influence of cavitation abrasive wear on screw pumps] Young Scientist. 2015. No. 22. Pp. 135-137 (in Russian). 17. Vasil'ev A. A., Igoshin D. N., Shisharina A. N. Snizhenie vliyaniya kavitatsii na iznos detaley nasosov. [Reducing the effect of cavitation on the wear of pump parts] Rural mechanicizer. 2016. No. 1. Pp. 28-29. 18. Gafurov S. A., Rodionov, L. V., Kryuchkov, A. N., Shakhmatov, E. V. Snizhenie dinamicheskoj nagruzhennosti kombinirovannogo nasosnogo agregata. [Reducing the dynamic loading of the combined pump unit] Pumps. Turbines. Systems - 2012. No. 2. 26 p (in Russian). 19. Zhang M., Wang H., Tsukamoto H. Numerical analysis of unsteady hydrodynamic forces on a diffuser pump impeller due to rotor-stator interaction //ASME 2002 Joint US-European Fluids Engineering Division Conference. – American Society of Mechanical Engineers, 2002. Pp. 751-760. 20. Jakimov S. B. et al. O vlijanii fraktsionnogo sostava abrazivnykh chastits v dobyvaemoy zhidkosti na vidy iznosa detaley jelektrocentrobezhnykh nasosov. [On the effect of the fractional composition of abrasive particles in the produced fluid on the types of wear of parts of electrical centrifugal pumps] Territory «NEFTEGAZ». 2018. No. 11. Pp. 32-38

Share

COinS