Abstract
Hydromechanical equipment of pumping stations of irrigation systems, including the main equipment of pumping stations of the Amu-Bukhara machine channel, was taken as the object of research. The study aims to assess the operating conditions of pumping stations and improve the main units' reliability by developing new units that ensure reliable and resource-saving operations. An important consequence of using new elements of irrigation systems during reconstruction is an increase in the unit capacity of regulated pumping units, which gives additional energy savings and reduces technological costs by 15-20%. The practical significance of the research results is based on the developed methods of hydraulic calculation of the flow in the flow section of the pumps, the assessment of reliability during operation under various conditions of the quality of the pumped water, and the criteria of its state.
Highlights
As you know, creating a network of irrigation in the arid zone is associated with the development of an irrigation machine
The methods of hydraulic study of the flow structure in the nodes of pumping stations were used to ensure the normal functioning of the hydromechanical equipment of the PS based on well-known measurement methods
The main reasons for this are: high content of abrasive particles and fin in the pumped water, harsh climatic conditions associated with high-temperature water and air; large size and water flow rate in the flow path elements, large water supply, and electric power units, the complex transition processes accompanying their operation; structural disadvantages of hydraulic machines and hydraulic structures, including non-effective technical water supply system; imperfect organizational and technical level of operation of pumping units and structures, science-based methodology, regulatory and other technical document management workflow water lifting and environmental conditions of the equipment and operating personnel
Summary
As you know, creating a network of irrigation in the arid zone is associated with the development of an irrigation machine. Safety of operation of pumping stations (PS) can be achieved by implementing the set of conditions, ensuring minimum impact on the external pump units (PU) related to the state of water resources and the impact of the PU themselves on environmental objects. Among the conditions of safety of operation of the complex include: The amount of water needed for the sustainable functioning of the structures related to water consumption. Violation of the PU's efficiency, caused by a shortage of water resources, directly affects the reception of food and other components of the quality of life of the population. Acute, this problem in the Republic, where much of the water sources is transboundary waters [3, 4]
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