Vestnik of Samara State Technical University. Technical Sciences SeriesVestnik of Samara State Technical University. Technical Sciences Series1991-85422712-8938Samara State Technical University1994410.14498/tech.2014.1.%uResearch ArticleUsing computational model for investigation of combined action of pumps with the controlled and noncontrolled driveKolesnikovSergey V(Ph.D. (Techn.)), Doctoral Studenttotig@yandex.ruKudinovVasiliy A(Dr. Sci. (Techn.)), Professortotig@yandex.ruKuznetsovaAnastasiya EPostgraduate Studenttotig@yandex.ruBranfilevaAnastasiya VPostgraduate Studenttotig@yandex.ruSkvortsovaMarina PPostgraduate Studenttotig@yandex.ruSamara State Technical University1503201422112713510022020Copyright © 2014, Samara State Technical University2014Result of the investigations of combined action of pumps received on computational model with the controlled and uncontrolled drive are given. The curve of saving of power depending on the expenditure via the pump with the controlled drive working as a part of group of pumps with uncontrolled drives is constructed. For pump with controlled drive was received the range of costs, in where is the maximum power sawing. This pump is one of the six working parallely in one sistem. Shown that for regulation of the variable rate on the network at a constant pressure at the output collector, uniting outlet pipes of all pumps connected in parallel, it is enough to install variable speed drive is only one of the pumps.Kirchhoff's lawspump characteristics curvehydraulic circuit characteristicscontrolled drivecurve of saving of powerкомпьютерная модельзаконы Кирхгофахарактеристики насосовхарактеристика гидравлической сетирегулируемый приводкривая экономии мощности[Соколов Е.Я. Теплофикация и тепловые сети. - М.-Л.: Госэнергоиздат, 1963. - 360 с.][Панамарев Ю.С., Кудинов В.А., Чиликин Ю.П., Котов В.В. Расчет гидравлических и температурных режимов работы теплосети Самарской ТЭЦ с помощью компьютерной модели // Теплоэнергетика. - 2005. - № 5. - С. 35-39.][Кудинов В.А., Коваленко А.Г., Колесников С.В., Панамарев Ю.С. Разработка компьютерной модели и исследование работы циркуляционной системы Новокуйбышевской ТЭЦ-2 // Известия АН. Энергетика. - 2001. - № 6. - С. 118-124.][Мягков Ф.Н., Костырев М.Л., Дубаев А.И., Мотовилов Н.В. Моделирование насосов с регулируемой частотой вращения // Электрические станции. - 2009. - № 6. - С. 54-58.]