2411-3336 2541-9404 Записки Горного института Journal of Mining Institute Санкт-Петербургский горный университет императрицы Екатерины ΙΙ Empress Catherine II Saint Petersburg Mining University 10.31897/PMI.2021.2.15 pmi-13354 https://pmi.spmi.ru/pmi/article/view/13354 Электромеханика и машиностроение Electromechanics and mechanical engineering One of the ways to increase the durability of the sectional pump balancing ring Один из путей повышения долговечности гидравлической пяты секционного насоса Ovchinnikov Nikolai P. Овчинников Н. П. Ovchinnikov Nikolai P. ovchinnlar1986@mail.ru Северо-Восточный федеральный университет им. М.К. Аммосова (Якутск, Россия) North-Eastern Federal University named after M.K.Ammosov (Yakutsk, Russia) 24 06 2021 2021 248 312 318 15 05 2020 12 06 2020 24 06 2021 © Nikolai P. Ovchinnikov 2021 Н. П. Овчинников Nikolai P. Ovchinnikov CC BY 4.0 https://pmi.spmi.ru/pmi/article/view/13354

В статье представлены результаты научных исследований, направленных на борьбу с адгезионным изнашиванием деталей гидравлических пят секционных насосов, где в качестве объекта исследований использовано насосное оборудование водоотливных установок подземных кимберлитовых рудников Российской Федерации. Теоретически доказано и экспериментально подтверждено, что при наличии данных о суммарном времени работы секционного насоса в переходных режимах за сутки можно с помощью построенной регрессионной модели с высокой точностью рассчитать среднюю наработку его узла гидравлической пяты на отказ. Построенная регрессионная модель применима только в отношении секционных насосов водоотливных установок подземных кимберлитовых рудников Российской Федерации. Повысить долговечность гидравлической пяты возможно посредством уменьшения времени разгона и торможения секционного насоса, для безопасной работы оно должно составлять не менее 10 с. Проведенные опытно-промышленные испытания свидетельствуют об эффективности предложенного способа по оперативной идентификации критического осевого сдвига ротора секционного насоса через вибрацию трубы разгрузки. Внедрение данного способа позволит свести затраты на ремонтные работы по восстановлению работоспособности деталей гидравлической пяты к минимуму.

The article presents the results of scientific research aimed at struggling the adhesive wear of parts of sectional pumps balancing ring, where the drainage units pumping equipment of the Russian Federation underground kimberlite mines was used as an object of research. It has been theoretically proven and experimentally confirmed that if there is data on the total operating time of a sectional pump in transient modes per day, using the constructed regression model, it is possible to calculate with high accuracy the average operating time of its balancing ring unit to failure. The constructed regression model is applicable only to sectional pumps of drainage units of underground kimberlite mines in the Russian Federation. It is possible to increase the durability of the balancing ring by reducing the acceleration and deceleration time of the sectional pump; for safe operation, it should be at least 10 s. Pilot tests carried out indicate the effectiveness of the proposed method for prompt identification of the critical axial displacement of the sectional pump rotor through the vibration of the discharge tube. The introduction of this method will reduce the cost of repair work to restore the performance of parts of the hydraulic foot to a minimum.

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