Авторы:
Издательство:
Дата издания
10.09.2023Область исследования
Тип исследования
Аннотация (краткое описание)
Hydrotransport equipment of mining and processing plants has a low operational reliability, insufficient working resource due to intensive hydroabrasive wear of working surfaces of pipelines and pumping equipment, drawbacks in the design of some nodes of groundwater pumps and their operation. Significant hydroabrasive wear of the main element of the ground pump design, the impeller, causes additional disturbing dynamic forces, which leads to increased vibration of the unit and, consequently, to its premature failure. Until now, insufficient attention has been paid to the influence of water abrasion of the impeller on the service life of their units and their service life. The paper analyzes the manifestation of cavitation wear of parts of the flowing part of groundwater pumps, outlines measures to reduce cavitation by favorable conditions of fluid intake into the pump and reducing the vacuum suction height. A number of measures of technological and constructive decision, decrease of harmful influence of cavitation are also offered. Materials for manufacturing parts of the centrifugal soil pump with high performance and high service life have been selected and analyzed. These alloys showed high corrosion resistance due to their high chromium content. The ways of improvement of the centrifugal soil pump parts design, allowing to increase the resource of their work, to create an automated system of diagnosing the condition of the construction as a whole are outlined. On the basis of the analysis of wear of parts of a centrifugal soil pump the improved designs of an armored disk with a replaceable disc and a composite impeller with improved indicators of wear resistance and maintainability are developed, allowing to increase their service life, to reduce the cost of spare parts and to reduce the repair period. The influence of wear and tear of centrifugal soil pump parts on its operating parameters has been determined; the dependence of pump head and pumping capacity on the volume of pumped hydro-abrasive mixture has been established. © 2023, National Academy of Sciences of the Republic of Kazakhstan. All rights reserved.DOI
10.32014/2023.2518-170X.343Тип публикаций
Данный документ располагается в коллекциях
Международные публикации ученых SU
Scopus
Файлы документа
18. 202-216.pdf