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PRINCIPLE OF OPERATION AND EFFICIENCY OF THE VARGANZA-2 PUMPING
STATION
associate professor.
Jonqobilov Sobir Ulug‘murodovich
graduate student
. Rahmatullayev Sherzod Oybek o‘g‘li
Karshi State Technical University
Abstract:
This article analyzes general information about the Varganza-2 pumping station, the
principle of operation of the pumping station, technical characteristics and efficiency indicators. The
role of the pumping station in the water supply and irrigation system of Kitab district, as well as
proposals for improving its energy efficiency, are considered.
Key words:
Pump station, Varganza-2, pump unit, pump type, pressure pipe, push pipe, principle of
operation, energy efficiency, irrigation, water supply, technical service.
Абстрактный.
В данной статье проанализированы общие сведения о насосной станции
«Варганза-2», принцип работы насосной станции, технические характеристики и показатели
эффективности. Рассмотрена роль насосной станции в системе водоснабжения и орошения
Китабского района, а также предложения по повышению ее энергоэффективности.
Ключевые слова.
Насосная станция, Варганза-2, насосный агрегат, тип насоса, напорный
трубопровод, напорный трубопровод, принцип работы, энергоэффективность, орошение,
водоснабжение, техническое обслуживание.
Annotatsiya.
Mazkur maqolada Varganza-2 nasos stansiyasi haqida umumiy ma’lumotlar, nasos
stansiyaning ishlash prinsipi, texnik xususiyatlari va samaradorlik ko‘rsatkichlari tahlil qilinadi.
Nasos stansiyasining Kitob tumanidagi suv ta’minoti va irrigatsiya tizimidagi roli, shuningdek,
uning energiya samaradorligini oshirish bo‘yicha takliflar ko‘rib chiqiladi.
Kalit so`zlar.
Nasos stansiyasi, Varganza-2, nasos agregati, nasos rusumi, bosim quvur, suruvchi
quvur, ishlash prinsipi, energiya samaradorligi, irrigatsiya, suv ta’minoti, texnik xizmat ko‘rsatish.
Introduction.
The President of the Republic of Uzbekistan, Shavkat Mirziyoyev, declared the year
2025 as the "Year to Improve Pump Efficiency" in the water management sector. This decision is an
important initiative aimed at improving energy efficiency in the management and use of water
resources in our country. In Uzbekistan, 2.5 million hectares of land are being irrigated, with more
than 1,600 pump stations consuming 6.8 billion kilowatt-hours of electricity annually. Unfortunately,
94% of these pump stations have exceeded their normative service life, meaning they have been in
use for more than 10 years. This leads to a reduction in their efficiency and results in excessive
energy consumption.
Under the initiative put forward by our President, the following measures are planned to be
implemented:
Modernization of pump stations:
Reducing electricity consumption by replacing outdated
equipment with modern, energy-efficient models.
Utilization of solar energy:
Diversifying the energy supply of pump stations through the
installation of solar panels based on private partnerships and using environmentally friendly energy
sources.
Construction of small hydropower plants:
Accelerating water flow by concreting canals and
constructing small hydroelectric stations, which would generate additional electricity.
If these initiatives are implemented, an additional 600 million kilowatt-hours of electricity could be
generated annually. This would not only help save energy resources but also positively impact
INTERNATIONAL MULTIDISCIPLINARY JOURNAL FOR
RESEARCH & DEVELOPMENT
SJIF 2019: 5.222 2020: 5.552 2021: 5.637 2022:5.479 2023:6.563 2024: 7,805
eISSN :2394-6334 https://www.ijmrd.in/index.php/imjrd Volume 12, issue 02 (2025)
515
environmental protection. One of the pump stations of significant importance for our country is the
Varganza-2 pump station.
Varganza-2 Pump Station is one of the large hydraulic structures located in the Kitob district of the
Kashkadarya region, Uzbekistan. It mainly serves water supply and irrigation systems. This pump
station is particularly significant as part of large irrigation systems and plays a key role in providing
water to agriculture in the region. The Varganza-2 pump station, which was commissioned in 1991,
is designed to lift water to irrigate 360 hectares of land. The water source for the station is the left
bank of the Kashkadarya River. The station is equipped with 8 pump units: 4 SN 180-170 and 4 200
D-90 pumps. These pump units are powered by 5АМ355МВ6еУЗ and АИР-315-S6 motors.
The station is primarily used during the spring and summer months and consumes an average of
398,000 kWh of electricity annually. Water supply through the Varganza-2 pump station is crucial
for agriculture, especially for managing irrigation systems. This is also essential for the efficient
organization of agricultural production in the region. The station plays a significant role in
Uzbekistan's comprehensive programs aimed at water resource management, improving energy
efficiency, and conserving water in agriculture.
Water enters the Varganza-2 pump station from the left bank of the Kashkadarya River through
intake chambers. The water is then distributed to 300 hectares of land through 8 pump units (4 SN
180-170 and 4 200 D-90). This process takes place through pressure pipelines and canals. Pressure
pipelines carry the water to the canals, which then deliver it to the fields. The pressure pipelines
have a diameter of 430 mm and a length of 450 meters. The pump station lifts water to a height of
89.9 meters using these pipelines.
The Varganza-2 pump station mainly serves the Varganza neighborhood, which spans 360 hectares
of land. Several agricultural enterprises operate in the area. The annual water delivery limit for the
Varganza-2 station is set at 2,441,000 cubic meters, with 2,570,000 cubic meters delivered in 2022,
2,984,000 cubic meters in 2023, and 3,310,000 cubic meters in 2024. If we look at the activities
carried out over the last two years, no major construction, reconstruction, repair, or restoration work
has been done; only funds have been spent on the operation and maintenance costs of the pump
station. In 2023, 522.6 million UZS and in 2024, 753.7 million UZS were spent on the station's
operation costs.
To improve the efficiency of the Varganza-2 pump station, several key measures need to be taken.
First, to improve energy efficiency, modern energy-efficient pump units should be installed. New
pumps use less power, operate with high efficiency, and have a longer service life. Additionally, the
implementation of automated control systems is important. The ability to remotely control and
monitor the station will help optimize the operation of the pumps, detect faults early, and simplify
the maintenance process.
The efficiency of the pump station is directly related to the pipeline system. Outdated pipelines and
water losses in them reduce the overall efficiency of the system. Therefore, modernizing the
pressure pipelines, installing high-quality materials, and addressing faults in a timely manner are
essential.
Technical maintenance also directly affects efficiency. Regular diagnostics and preventative
maintenance ensure the long-term effective operation of the pumps. The lubrication system of the
pumps and motors, as well as the condition of the rotor and bearings, should be constantly
monitored.
Moreover, using hybrid energy sources (such as combining solar panels or wind turbines) will help
save electricity and increase the system's independence.
By implementing the above measures, the efficiency of the Varganza-2 pump station's water supply
and irrigation systems can be significantly improved.
INTERNATIONAL MULTIDISCIPLINARY JOURNAL FOR
RESEARCH & DEVELOPMENT
SJIF 2019: 5.222 2020: 5.552 2021: 5.637 2022:5.479 2023:6.563 2024: 7,805
eISSN :2394-6334 https://www.ijmrd.in/index.php/imjrd Volume 12, issue 02 (2025)
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Conclusion
The Varganza-2 pump station plays a crucial role in the water supply and irrigation systems of the
Kitob district. However, its efficiency is limited due to manual management by operators and lack
of automation. To improve efficiency, it is necessary to install modern pumps, implement
automation, modernize the pipeline system, and enhance technical maintenance. These changes will
increase the station's energy efficiency and operational sustainability, improving water delivery
quality. If additional technological upgrades are made in the future, the Varganza-2 pump station
could become one of the most advanced facilities in Uzbekistan's water supply system.
References
1.
The Decree of the President of the Republic of Uzbekistan on the "Strategy for the
Development of New Uzbekistan for 2022-2026" PQ-60, Tashkent, January 28, 2022.
2.
Mamajonov, M. "Pumps and Pump Stations." Textbook. Tashkent: "Science and
Technology," 2012. - 372 pages.
3.
Lisov, K.I., Grigorev, K.T. "Pumps and Pump Stations." Tashkent: O'qituvchi, 1980. - 230
pages.
4.
Mamajonov, M., et al. "Practical Exercises on Pumps and Pump Stations." Educational
Manual, Andijan, 2005. - 272 pages.
5.
Mamajonov, M., et al. "Pumps and Pump Stations." Educational Manual, Tashkent, 2009. -
214 pages.
6.
Collection of Laws and Regulations on the Deepening of Agricultural Reforms. Tashkent,
2022. – 189 pages.
7.
Ikramov, N., Azimov, A. "Methodical Guidelines for the Course Project on Pumps and
Pump Stations." Tashkent: TIMI, 2013. - 42 pages.
8.
Rakhimboyev, F.M., et al. "Practical Lessons on Agricultural Hydrotechnical Melioration."
Tashkent: Mehnat, 2019. - 392 pages.
