ADVANCEMENTS AND PRACTICAL DEPLOYMENT OF FREQUENCY-CONTROLLED DRIVES IN PUMPING INFRASTRUCTURE
Keywords:
Pressure, pump, capital expenditures, reduced costs, payback, variable frequency driveAbstract
The article presents a methodology for a feasibility study for the use of a frequency-controlled electric drive in pumping units. A method for calculating the use of a frequency-controlled electric drive in pumping units is given and it is proved that the application makes it possible to use large pumping units in the low flow mode and, therefore, reduce their total number. The problem of determining the technical and economic indicators of pumps of the D series is also considered and it is shown that the linear dimensions of pumping units grow much more slowly than their power and flow. An expression was cited for determining the relative linear dimensions of the compared aggregates.
For pumping units of the D series, a regularity was established that the linear dimensions of the enlarged unit, compared with the base unit, increase to a lesser extent than its flow increases. The results of the calculation of the relative parameters of pumps of the D series, the pump unit equipped with the D320-70 pump are presented.
Due to the equipment of pumping units with a frequency-controlled drive, a decrease in the number of units at pumping stations does not reduce the operational possibilities for changing their operating modes caused by changes in water consumption.
Thus, the use of a frequency-controlled electric drive under certain conditions not only does not increase capital investments, but also reduces them somewhat.
Calculations have shown that the use of a frequency-controlled electric drive in combination with an increase in unit power, depending on the purpose of the station and other specific conditions, can reduce the reduced costs by 20–50%.
The sequence of the feasibility study for the use of a frequency-controlled electric drive in pumping units is given.
It has been proved that, in a pumping unit, the creation of an energy-saving ACS based on the use of a frequency-controlled electric drive pays off in a fairly reasonable time, even without taking into account water savings.
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References
Leznov B.S. Energy saving and adjustable drive in on-pine and blower installations. Moscow: Energoatomizdat, 2006.
Leznov B.S. Characteristics of branched pipelines with intermediate water withdrawals // Water supply and sanitary technique. 2007, no. 12.
Leznov B.S. Methodology for evaluating the effectiveness of the application adjustable electric drive in water supply and sewerage ny pumping installations. M.: Mashinostroenie, 2011.
Leznov B.S. Technological bases for the use of variable electric drive in pumping units // Vodoochistka. Water treatment. Water supply. 2012, No. 5.
Khafizov .Islom, Gafforov Komil, Muxammedov Shuxrat, Jurakulov Abdullo , Energy saving when using a variable frequency drive in pump installions, Journal of Critical Reviews. Vol 7, Issue 12, 2020. p 99-102
Shoyimov P, Khafizov X, Murodov B, Murodova B. Influence of electric power and other forces on the quality of cotton seeds on the surface of working body. International Scientific Conference “Construction Mechanics, Hydraulies and Water Resources Engineering”(CONMECHYDRO-2021) held on April 1-3, 2021 in Tashkent, Uzbekistan E3S Web of Conferences 264, 04010 (2021) CONMECHYDRO–2021 https://doi.org/10.1051/e3sconf/202126404010
Khafizov I.I., Komil Gafforov, Sukhrob Atoyev, Mehrangiz Jòrakulova Economical mode by stabilizing the fluid supply pressure and eliminating energy losses in pumping units, ResearchJet Journal of Analysis and Inventions, Volume 2, Issue 4 April, 2021. P. 282-289
Khafizov I.I., Komil Gafforov., Bektosh Miyliyev ADVANTAGES OF USING A VARIABLE SPEED DRIVE IN PUMPING UNITS, Emergent: Journal of Educational Discoveries and Lifelong Learning (EJEDL) Volume 2, Issue 5, May, 2021., P.134-142.
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