The article presents an analysis of data on the flow movement in a centrifugal pump, the results of which are aimed at improving the pump design in the direction of ensuring the flow of the flow without resistance to achieve energy savings in water transmission. To reduce slip on the pumps and to reduce the resistance to current flowing inside the pump to achieve energy savings, working impeller and spiral chamber shape are designed to be constructively correct. Data from pumping stations show that the performance of pumping equipment reduces water consumption by 10-12%, pressure by 18-20% and service life by 28-34% as a result of erosion. Centrifugal pumps are available in types "D" and "K", and in order to ensure the flow of flow in these types of pumps without resistance, the shape of the pump spiral chamber was modeled and calculated using different values. Mathematical modeling of spiral chamber of pumping device type "K" by the proposed method, the application of the obtained results allows preparing the shape of spiral chamber in accordance with diameter of impeller. The pump ensures that the flow in the spiral chamber moves without resistance, increasing water uplift height, water consumption, efficiency, and reducing the required power. In order to determine the advantages of the data obtained from results of computational work carried out under the program, research work was carried out to study the flow part of the centrifugal pump of type "K", comparatively analyzed and identified design drawings. It was found that to ensure unobstructed flow of flow in the pump spiral chamber, the water uplift height, water consumption, efficiency should be 95.5% and the required capacity should be reduced by 57.0%. The obtained theoretical results showed that the preparation of the pump spiral chamber using the proposed program allows saving 25% of electricity consumption in pumping stations in the water system and utility systems "K" type pumps.
Glovatsky, O., Azizov, O., Shamayramov, M., ...Gazaryan, A., Ismoilov, N. Diagnostic tests of vertical pumps modernized pump stations. IOP Conference Series: Materials Science and engineering, 2020, 883(1), 012032.Tashkent. 2020. (in Uzbek)
Glovatskiy, O., Djavburiyev, T., Urazmukhamedova, Z., Gazaryan, A., Akhmadov, F. Interconnection of influent channel and pumping station units E3S Web of Conferences, 2019, 97, 05011, Tashkent. 2019. (in Uzbek)
Vaibhav Bankar, S. P. M. Design of centrifugal pump impeller. Hum. Relations 3, 1–8 (2020). Nagpur. 2020.
Lennemann E. Flows in a blade impeller pumps, Trans. ASME J. of Engineering for Power, Canada. 2001.
Rustamov Sh., Nasirova N. Сonstructive peculiarities of modernized centrifugal pump // European science review, № 3–4, 2018. Vienna. Pp-278-280.(In English)
Adler D. and Levy Y. Investigation of the Flow Inside a Backswept, Blade impeller pumps. I.Mech.E Journal Mechanical Engineering Science, 2005, Vol.41, №.2. Haifa. 2005. .(In English)
O. Ya. Glovatskiy, AS Gazaryan, B. Khamdamov, J.I. Rashidov, Povysheniye effektivnosti ekspluatatsii i bezopasnosti nasosnykh stantsiy [Improving the efficiency of operation and safety of pumping stations], Ways to improve the efficiency of irrigated agriculture, Issue No. 1 (81) / 2021, Scientific and Practical magazine, pages -32-37. Novocherkassk-2021.(In Russia)
Dzhurabekov, A., Rustamov, S., Nasyrova, N. & Rashidov, J. Erosion processes during non-stationary cavitation of irrigation pumps. E3S Web Conf. 264, 1–9. Тошкент, 2021. (In Uzbek)
O.Ya. Glovotskiy, F.J. Nosirov, O.X. Nizomov, Sh.R. Rustamov,. Energogidravlikeskie isseldovaniya novyh tipov vodopodvodyashchix soorujeniy nasosnyh stantsiy [Energy-hydraulic studies of new types of water supply structures of pumping stations] Materials of the republican scientific-practical conference “Problems of improving the security, quality of water resources”. 2013. Pp.65-69. (In Uzbek).
Glovatskii, O.Ya. Operating experience and reliability assessment of elements of pumping stations. Hydrotechnical Construction, 1989, 23(9), Pp.532-537(In Russia)
T.Majidov, J.Rashidov, “Taking into account local conditions in the selection of reclamation pumps” Journal of Agriculture and Water Resources of Uzbekistan, Special issue, 2019, Pp.30-32.(In Uzbek)
Abdullayev, A., Kholturayev, K., Safarbayeva, N. Exact method to solve of linear heat transfer problems E3S Web of Conferences (2021), 264, 02059 Тошкент, 2021.(In Uzbek)
Jonson M. Secondary Flows in blade pumps impeller. Department of Engineering Cambridge University. London.2009.
Glovatsky, O., Ergashev, R., Saparov, A., Berdiev, M., Shodiev, B. Cavitation-abrasive wear working collectors of pumps IOP Conference Series: Materials Science and Engineering, 2020, 869(4), 042006 Hanoi, Vietnam. 2020
F.Bekchanov, R.Ergashev, T.Mavlanov, O.Glovatskiy Mathematical model of vibrating air pump unit // XXII International Scientific Conference on Advanced in Civil Engineering / construction the formation of living environment, April 18-21, Tashkent. 2019.(In Uzbek)
Glovatskiy, O., Ergashev, R., Rashidov, J. & Nasyrova, N. Experimental and theoretical studies of pumps of irrigation pumping stations. 02030, 1–10 Moscow.2021.(In Russia)
Sh.R.Rustamov J.I.Rashidov, “Study of impellers of centrifugal pumps”, Journal of Agro Science 5 , 2020, Pp.65-67.(In Uzbek)
Nasyrova, N., Glovatsky, O., Ergashev, R., Rashidov, J. & Kholbutaev, B. Design aspects of operation of water supply facilities of pumping stations. E3S Web Conf. 274, 1–10 Kazan.2021. (In Russia)
Rashidov, J. & Kholbutaev, B. Water distribution on machine canals trace cascade of pumping stations. IOP Conf. Ser. Mater. Sci. Eng. 883. Tashkent. 2020. (In Uzbek)
Glovatskii, O., Rashidov, J., Kholbutaev, B. & Tuychiev, K. Achieving reliability and energy savings in operate of pumping stations. E3S Web Conf. 264, 1–9. Tashkent. 2021. (In Uzbek)
Гловацкий, О.Я.; Ergashev, R.R.; Abdullaev, A.A.; and Rashidov, J.I.
"RESULTS OF SOFTWARE MODELING FLOW SECTION OF VANE PUMPS,"
Irrigation and Melioration: Vol. 2021
, Article 4.
Available at: https://uzjournals.edu.uz/tiiame/vol2021/iss3/4
Agricultural Economics Commons, Agricultural Education Commons, Environmental Engineering Commons, Hydraulic Engineering Commons, Other Civil and Environmental Engineering Commons, Other Engineering Science and Materials Commons, Other Mechanical Engineering Commons