Experimental and theoretical studies of pumps of irrigation pumping stations

Glovatskiy, Oleg; Ergashev, Rustam; Rashidov, Jaloliddin; Nasyrova, N; Kholbutaev, Boybek

doi:10.1051/e3sconf/202126302030

Cited by 19 publications

(4 citation statements)

References 15 publications

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“…Based on software drawings, the continuous movement of the flow in the pump was analyzed. Field studies and diagnostic results showed the need for a connection between theoretical and experimental studies [12,13]. Based on surveys and research conducted in the production company, it was determined that the influence of reading forces on the working parts of the pumps was determined.…”

Section: Methodsmentioning

confidence: 99%

Improving impeller and water flow section of vane pumps

et al. 2023

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As a result of the research, it was found that the blades of the working impellers of the pumps are eroded at the inlet and outlet. Based on software studies, the points of erosion caused by cavitation and sand particles at the entrance of the impeller and the points of operation of the impeller under heavy load have been determined. The operating points under heavy load are compared with working impellers in nature. After comparison with software developments, it is determined that they are compatible with working impellers in natural conditions. The following impeller model is recommended to reduce cavitation and erosion processes in the impeller (Figures. 6, 10). The recommended impeller is shown in the inlet of the impeller to free water entry, prevent water shortage, and reduce the level of cavitation. (Figures 6, 10, 11). The ingress of water into the impeller is freed, the continuous movement of water is restored, and the methods of preventing the processes of decay and holes formed in the impeller are given. Recommended methods of significantly reducing the level of wear in the input and output parts of the impeller are given.

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Section: Methodsmentioning

confidence: 99%

Improving impeller and water flow section of vane pumps

et al. 2023

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“…One of the principles of water management is to ensure development and management to solve the problems associated with using limited water resources, increase the efficiency of their use, and impact sustainable development. One of the ways to improve the efficiency of water use and operation of the MWLS is to reduce unproductive losses, mainly hydraulic ones [1,2].…”

Section: Introductionmentioning

confidence: 99%

Hydrometric flow measurement in water management

et al. 2023

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The main problem in the operation of irrigation systems is to ensure the accuracy and reliability of measuring the main hydrometric parameters in managing water resources of irrigation facilities. When operating systems with pumping stations, it becomes necessary to measure a set of technological parameters, which can be divided into the following groups by type: hydraulic parameters (flow rate, fluid pressure, water flow in the channel), parameters of pumping units, linear-angular parameters (channel section length, channel width, gate movement, mixed parameters (clear area, flow depth, wetted perimeter length). Analysis of existing methods and instruments for measuring water flow for the rational use of water resources is used in all areas the volume of water taken from the water intake and supplied to the irrigation network. This task contributes to operational and control of pumping station parameters without hydrometric instruments at the stations themselves. The problem of organizing automated technological accounting of irrigation water at graduated hydraulic structures equipped with gates and operating in a flooded or backwater-variable mode is solved by new hydrometric methods with the integrated use of ultrasonic, acoustic, or float level gauges as part of modern microprocessor devices that convert water level readings at such structures into flow and runoff readings, according to the calibration characteristic each specific building. The article presents the recommended water metering devices for different hydraulic flow regimes and water quality. To speed up the process of measuring water flow in canals with flow rates of 1-10 m3 / s and large facilities of pumping stations with flow rates of 10-200 m3 / s, types of standard weirs, flumes of various profiles, and water measuring nozzles are recommended. According to the working formulas, changes in water flow are determined, taking into account the error of the gauging station and the indicated weirs.

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“…IOP Publishing doi:10.1088/1755-1315/1142/1/012004 2 In the system of the Ministry of Water Resources of the Republic of Uzbekistan, there are more than 20 systems of machine water lifting for irrigation, which provide water resources for more than 2.1 million hectares of irrigated lands of the Republic [2]. For their normal functioning, channels with hydraulic structures, pumping stations with power equipment are operated [3,4].…”

Section: Introductionmentioning

confidence: 99%

Experience in using methods for monitoring the energy efficiency of hydraulic systems

Glovatskii

Ergashev

Rashidov

et al. 2023

IOP Conf. Ser.: Earth Environ. Sci.

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The purpose of this research is to improve the system of water resources management and operation of water facilities, reduce the energy consumption of irrigation pumping stations, which is one of the urgent modern problems in the Republics of Central Asia. The authors decide on the choice of such a set of subsystems and elements from the universal set, in which the value of the design parameters is provided with minimal costs. The recommendations developed by the authors use methods for monitoring the energy efficiency of hydraulic systems and are aimed at reducing electricity consumption, primarily through effective methods for regulating the operation of pumping stations. The main feature of assessing the technical condition of the units of pumping stations is the use of diagnostics of the dynamic level of elements of hydraulic units during operation. Monitoring of operating parameters of pumping stations was carried out on two pilot canals according to special tables of basic parameters. As an optimality criterion, options are accepted that differ in terms of reconstruction, duration of development of the capacity of electrical networks, interface structures of pumping stations, taking into account the time factor. By carrying out these activities, the water supply of the irrigation array will increase and crop yields will increase. After analyzing the data obtained, it will be possible to make a decision on the further use or modernization of the units of pumping units and structures. At the same time, the conditions for energy efficiency and reliability of the operation of the PS will improve.

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Experimental and theoretical studies of pumps of irrigation pumping stations

Cited by 19 publications

References 15 publications

Improving impeller and water flow section of vane pumps

Improving impeller and water flow section of vane pumps

Hydrometric flow measurement in water management

Experience in using methods for monitoring the energy efficiency of hydraulic systems

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