Using hydro-cavitation jets when cleaning parts of centrifugal submersible pumps
UDC: 622.24
DOI: -
Authors:
LADENKO A.A.
1,
SOTNIKOV S.V.2
1 Kuban State Technological University, Krasnodar, Russia
2 NPP YUGNEFTEMASH, Armavir, Russia
Keywords: installation, pump, cleaning, failure, underground repair, impellers, design, operation, deposits, super-cavitation phenomenon
Annotation:
Currently, the main method of oil production in Russia is the operation of wells by submersible centrifugal pumping units (SCP). Salt deposits on the working parts and surfaces of SCP pose a serious danger. The formation of dense stone-like sediment disrupts heat exchange, leads to jamming of pump working parts, shaft breakage and failure of the unit. The authors of the article present a solution to the main problem of increasing the overhaul period of submersible centrifugal pumps by cleaning the surface of impellers and parts using the hydro-cavitation method. The technology and the installation implementing it using super-cavitation phenomena in liquid jet flows are presented. The characteristics of the submersible centrifugal pump designs are presented. The installation was subjected to bench and industrial tests. The practice of cleaning parts by cavitation jet flows has proved the fact that the surfaces of the cleaned parts using the technology embedded in the installation are not subject to corrosion for several months.
Bibliography:
1. Rodionov V.P., Ladenko A.A. Ispol'zovanie gidravlicheskikh struy pri ekspluatatsii i obsluzhivanii ob"ektov dobychi nefti: ucheb. posobie. – Krasnodar: KubGTU, 2014. – 163 s.
2. Pat. 2414308 Ros. Federatsiya, MPK B08B 3/10. Sposob gidrokavitatsionnoy ochistki detaley i ustroystvo dlya ego osushchestvleniya / V.P. Rodionov; patentoobladatel' NPP "EKOTEKhNOLOGII". – № 2009140686/05; zayavl. 06.11.2009; opubl. 20.03.2011, Byul № 8.
3. Pat. 1614241 Ros. Federatsiya, MPK B08B 03/12. Gidrokavitatsionnyy generator Rodionova V.P. / V.P. Rodionov. – Zayavl. 02.11.1987; opubl. 24.05.1993.
4. Pat. 2568467 Ros. Federatsiya, MPK B08B 3/12. Kavitator Rodionova V.P. / V.P. Rodionov. – № 2014142566/13; zayavl. 22.10.2014; opubl. 20.11.2015, Byul. № 32.
5. Rodionov V.P., Ladenko A.A., Sotnikov S.V. Ustanovka ochistki detaley tsentrobezhnykh pogruzhnykh nasosov gidrokavitatsionnymi struyami oborotnoy vody // Bulatovskie chteniya. – 2017. – T. 2. – S. 243–246.
6. Ripan R., Chetyanu I. Neorganicheskaya khimiya: per. s rum.: v 2 t. T. 1. – M.: Mir, 1971. – 560 s.
7. Ladenko A.A., Velichko E.I. Ispol'zovanie gidravlicheskikh struy pri ekspluatatsii ob"ektov dobychi nefti // Str-vo neftyanykh i gazovykh skvazhin na sushe i na more. – 2021. – № 12(348). – S. 46–49. – DOI: 10.33285/0130-3872-2021-12(348)-46-49
8. Ladenko A.A., Velichko E.I. Ustanovka dlya opredeleniya gidrodinamicheskikh kharakteristik zatoplennykh struynykh potokov pri oslozhnennykh usloviyakh ekspluatatsii oborudovaniya neftegazovoy otrasli // Str-vo neftyanykh i gazovykh skvazhin na sushe i na more. – 2022. – № 3(351). – S. 25–28. – DOI: 10.33285/0130-3872-2022-3(351)-25-28
Back to issue