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Анализ потерь мощности гидросистем с клапанной и объемной адаптацией к нагрузке при равномерном распределении расхода

Анализ потерь мощности гидросистем с клапанной и объемной адаптацией к нагрузке при равномерном распределении расхода

Abstract

Проведен анализ потерь мощности в двухпоточных гидравлических системах с объемной адаптацией к нагрузке (использующих насос с регулятором разности давлений) и с клапанной адаптацией к нагрузке (использующих клапан разности давлений и нерегулируемый насос) для случая равномерного распределения суммарного расхода, настроенного на исполнительных органах в течение рабочего цикла. Гидросистемы с объемной адаптацией проиг- рывают гидросистемам с клапанной адаптацией по стоимости и надежности, но считается, что потери мощности в них являются меньшими. Определены условия, при которых двухпоточные системы с клапанной адаптацией являются предпочтительными по сравнению с гидросистемами с объемной адаптацией по энергетической эффективности в зависимости от уровня рабочего давления. Предложен способ выбора подач нерегулируемых насосов двухпоточной системы с клапанной адаптацией, обеспечивающий наименьший уровень потерь энергии при равномерном случайном распределении суммарного настроенного расхода в гидросистеме, получены применимые на практике выводы. The comparison of power losses in the double-flow hydraulic LS-systems with a pump configuration (using the variable displacement LS-pump) and with a valve configuration (using the fixed dis-placement pump) is theoretically investigated. Hydraulic systems with a pump configuration con-cede to the hydraulic systems with a valve configuration on the cost and reliability, but it is believed that the power losses in them are smaller. The conditions under which double-flow LS-systems with a valve configuration (using the fixed displacement pump) are preferable in comparison with LS-systems with a pump configuration (using the variable displacement LS-pump) depending on the working pressure level are defined. A method is proposed for selecting of fixed displacement pump flows for double-flow hydraulic LS-systems valve configuration that provides the lowest level of energy losses in the case of uniform random distribution of the total adjusted flow rate in the hydraulic system. Practical conclusions have been obtained.

Keywords

Load sensing, Energy efficiency, Адаптация к нагрузке, Гидравлические системы, LS-systems, Потери мощности, LS-системы, Энергетическая эффективность, Power loss, Hydraulic systems

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
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