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Описание основных функций насосов ЦНС

16.07.2018 Раздел: Инструмент и оборудование Комментарии: (61) Размер текста: A+ / A-

При перекачивании большого количества жидкости под большим давлением потребуются специальные насосы, способные без труда справиться с такой задачей. Для таких операций подойдет водяной центробежный насос ступенчатого типа (ЦНС).

Насосы цнс — горизонтальная конструкция, которая предназначена для перекачивания нейтральной воды, у которой температура от 1ºС до 45ºС, и химических веществ. Наличие большого модельного ряда позволяет существенно расширить сферу применения насосов данного класса.

CNSОсновной функцией ступенчатых центробежных водяных насосов является перекачивание химически неактивной жидкости с температурой от 1ºС до 45ºС. При этом содержание механических примесей не должно превышать 0,2 %, а твердые частицы должны быть не более, чем 0,2 мм.

Основное свое применение они нашли в повышении давления в системах водоснабжения холодной воды. Так же часто используются в строительстве, в промышленности, для откачивания каменноугольных шахт и т.д. Такой секционный насос могут быть по строению от 2 до 10 секций, диапазон подач изготовитель закладывает от 13 до 850 м³/час., напор может достигать 1300 мм.вод.ст.

Насосы типа цнс 180 можно разделить по области применения и особенностям конструкции на следующие группы:

Насосы ЦНСг — насос, который предназначен для перекачивания горячей воды нейтральной среды с температурой от 45ºС до 105ºС. Доля механических примесей не должна превышать 0,1 %, а твердых тел 0,1 мм. Воду, которая поступает в насос, необходимо обеспечить подпором воды, так чтобы было не менее 10 м.в.ст.

Насосы ЦНСк — насос данного типа пригодится в тех ситуациях, когда требуется выкачать кислотные воды ( рН до 6.5), с температурой до 40ºС, содержание механических примесей в такой жидкости не должна превышать 0,2 % от массы, размер твердых элементов не должен превышать 0,2 мм.

Насосы ЦНСм — этот тип насоса применяется в местах, где есть масляная система, а в частности в парогенераторах. ЦНСм устанавливаются для смазки уплотняющих подшипников для безотказной работы во время пуска и на время остановки. В зависимости от модели перекачивающего насоса, температура масла может достигать до +50ºС и до +60ºС.

Строение многоступенчатого насоса ЦНС устроено так, что его корпус имеет отдельные секции, число которых всегда на одну единицу меньше, чем количество рабочих колес. Это связано с тем, что одно из рабочих колес располагается в передней крышке. Благодаря такой конструкции корпуса насоса есть возможность как увеличивать, так и уменьшать напор, при той же подаче. Рассчитать напор можно сложив напоры, которые создает каждое рабочее колесо.

На вал рота установлены втулка, гидропятный диск, полумуфта, элементы для регулировки и рабочие колеса (рубашка вала). Для их фиксации и стяжки применяются специальные гайки. Асинхронный электродвигатель приводит в движение такое оборудование через муфту. В корпусе предусмотрена охлаждающая полость, с помощью которой происходит охлаждение подшипников.

204155416_w640_h640_cid324655_pid141285246-b442420eДля стабильной долговременной работы чугунный центробежный ЦНС насос необходимо подпитывать подпором 2-6 метров. Без такого подпора будет происходить быстрое разрушение этих насосов за счет кавитации. Если температура воды увеличилась свыше +45ºС, необходимо пропорционально увеличить подпор.

Как и все в этом мире, конструкция этих насосов имеет свои недостатки. Из-за того, что при работе они могут показать не те свойства, которые считаются расчетными, сложно выбрать устройство подходящее для своего назначения. Неправильная эксплуатация и неправильный выбор параметров будущего насоса могут повлиять на выход его из строя, более подробнее смотрите на сайте msv-nasko.ru.

Описание основных функций насосов ЦНС Reviewed by Vash-Remontik.ru on . При перекачивании большого количества жидкости под большим давлением потребуются специальные насосы, способные без труда справиться с такой задачей. Для таких о При перекачивании большого количества жидкости под большим давлением потребуются специальные насосы, способные без труда справиться с такой задачей. Для таких о Rating: 0
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