Influence of hydroabrasive wear of impeller blades on head of centrifugal pump

The results of experiments on studying the nature of changes in the concentration and dispersion of solid suspended particles showed that the highest average monthly sediment concentration is 2.5...3.8 kg/m3, and sometimes in rainy weather, the maximum water turbidity reaches 7kg/m3. In the composit...

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Main Authors: Uralov Bakhtiyor, Mutalov Shukhrat, Shakirov Bakhtiyar, Khakimova Gulnoza, Sirojov Burkhon, Raimova Iqboloy
Format: Article
Language:English
Published: EDP Sciences 2023-01-01
Series:E3S Web of Conferences
Online Access:https://www.e3s-conferences.org/articles/e3sconf/pdf/2023/02/e3sconf_conmechydro2023_03012.pdf
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author Uralov Bakhtiyor
Mutalov Shukhrat
Shakirov Bakhtiyar
Khakimova Gulnoza
Sirojov Burkhon
Raimova Iqboloy
author_facet Uralov Bakhtiyor
Mutalov Shukhrat
Shakirov Bakhtiyar
Khakimova Gulnoza
Sirojov Burkhon
Raimova Iqboloy
author_sort Uralov Bakhtiyor
collection DOAJ
description The results of experiments on studying the nature of changes in the concentration and dispersion of solid suspended particles showed that the highest average monthly sediment concentration is 2.5...3.8 kg/m3, and sometimes in rainy weather, the maximum water turbidity reaches 7kg/m3. In the composition of solid mechanical impurities, a significant amount consists of particles with a grain size of 0.1-0.05mm. Observations have established that particles larger than 0.01 mm at a low flow velocity in the supply channel and the water intake chamber of the pumping station were easily deposited in them. Siltation volumes at various stations ranged from 20 to 60%. As a result, the hydraulic resistance increased, which led to a decrease in the pump head. The wear of parts of centrifugal pumps in natural conditions was also studied, and the dependences of wear on the characteristic dimensions and duration of their operation are given. The results of micrometering of the working parts of the pumps showed that the blades of the impellers along the length and width wear out unevenly both in size and shape. This is explained by the fact that when the hydroabrasive flow moves in the interblade space, the kinetic energy of solid particles and their local concentration increase due to an increase in the values of centrifugal and Coriolis forces along the radius of the impeller.
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spelling doaj.art-733eb79e21054970a2d84c05551580602023-01-31T09:54:02ZengEDP SciencesE3S Web of Conferences2267-12422023-01-013650301210.1051/e3sconf/202336503012e3sconf_conmechydro2023_03012Influence of hydroabrasive wear of impeller blades on head of centrifugal pumpUralov Bakhtiyor0Mutalov Shukhrat1Shakirov Bakhtiyar2Khakimova Gulnoza3Sirojov Burkhon4Raimova Iqboloy5"Tashkent Institute of Irrigation and Agricultural Mechanization Engineers" National Research UniversityShakhrisabz branch of the Tashkent institute of chemical technologyAndijan Agricultural and Agrotechnological InstituteTashkent institute of chemical technologyShakhrisabz branch of the Tashkent institute of chemical technology"Tashkent Institute of Irrigation and Agricultural Mechanization Engineers" National Research UniversityThe results of experiments on studying the nature of changes in the concentration and dispersion of solid suspended particles showed that the highest average monthly sediment concentration is 2.5...3.8 kg/m3, and sometimes in rainy weather, the maximum water turbidity reaches 7kg/m3. In the composition of solid mechanical impurities, a significant amount consists of particles with a grain size of 0.1-0.05mm. Observations have established that particles larger than 0.01 mm at a low flow velocity in the supply channel and the water intake chamber of the pumping station were easily deposited in them. Siltation volumes at various stations ranged from 20 to 60%. As a result, the hydraulic resistance increased, which led to a decrease in the pump head. The wear of parts of centrifugal pumps in natural conditions was also studied, and the dependences of wear on the characteristic dimensions and duration of their operation are given. The results of micrometering of the working parts of the pumps showed that the blades of the impellers along the length and width wear out unevenly both in size and shape. This is explained by the fact that when the hydroabrasive flow moves in the interblade space, the kinetic energy of solid particles and their local concentration increase due to an increase in the values of centrifugal and Coriolis forces along the radius of the impeller.https://www.e3s-conferences.org/articles/e3sconf/pdf/2023/02/e3sconf_conmechydro2023_03012.pdf
spellingShingle Uralov Bakhtiyor
Mutalov Shukhrat
Shakirov Bakhtiyar
Khakimova Gulnoza
Sirojov Burkhon
Raimova Iqboloy
Influence of hydroabrasive wear of impeller blades on head of centrifugal pump
E3S Web of Conferences
title Influence of hydroabrasive wear of impeller blades on head of centrifugal pump
title_full Influence of hydroabrasive wear of impeller blades on head of centrifugal pump
title_fullStr Influence of hydroabrasive wear of impeller blades on head of centrifugal pump
title_full_unstemmed Influence of hydroabrasive wear of impeller blades on head of centrifugal pump
title_short Influence of hydroabrasive wear of impeller blades on head of centrifugal pump
title_sort influence of hydroabrasive wear of impeller blades on head of centrifugal pump
url https://www.e3s-conferences.org/articles/e3sconf/pdf/2023/02/e3sconf_conmechydro2023_03012.pdf
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