Основные сведения о дизельном топливе

11.04.2012

Дизельное топливо – основные сведения


Дизельное топливо (дизтопливо) – жидкий продукт нефтеперегонки, получающийся из керосино-газойлевых фракций, использующийся в качестве топлива в двигателях внутреннего сгорания  системы Дизель.


Применение


Дизельное топливо солярка, используется в таких отраслях, как грузовой и железнодорожный транспорт, водный транспорт, легковой автотранспорт, военная и сельскохозяйственная техника. Соляровое масло – остаточное дизельное топливо – применяется как котельное топливо, а также для пропитки кожи, в закалочных и смазочно-охлаждающих средствах, при термической и механической обработке металлов.


Характеристики


Диз топливо делится на маловязкое дистиллятное (используется для быстроходных двигателей), и высоковязкое, остаточное (используется для тихоходных двигателей – стационарных, судовых, тракторных и пр.). Дистиллятное топливо – гидроочищенные керосино-газойлевые фракции прямой перегонки нефти. Вязкое топливо – смесь мазутов керосино-газойлевыми фракциями.


Зимнее и летнее дизтопливо


В различии топлива на зимнее и летнее основным фактором выступает температура предельной фильтруемости и температура помутнения и застывания.  Зимнее диз топливо дороже в производстве, но летнее невозможно для использования при температуре -100С без предварительного подогрева. При хранении такого вида, как дизельное топливо, солярка, отслаивается и собирается внизу вода – её плотность выше, чем у диз топлива.  Работа двигателя может быть полностью блокирована водяной пробкой. ГОСТ 305-82 определяет кинематическую вязкость топлива для зимних сортов 1,8÷5,0 сСт, летних сортов в пределах 3,0÷6,0 сСт, для арктических 1,5÷4,0 сСт. Также, согласно этому ГОСТу, воды не должно быть во всех марках топлива. 


Воспламеняемость


Цетановое число, показывающее способность топлива к воспламенению в камере сгорания, – основной показатель дизельного топлива, определяется объемным содержанием цетана в смеси с альфа-метилнафталином. Температуру вспышки дизельное топливо, солярка, не должно иметь выше 700С, Температура перегонки должна находиться в пределах 2000-3500С.


Дизтопливо в Челябинске и области


В популярности такого вида топлива, как дизтопливо, Челябинск не стал исключением – здесь широко реализуется солярка оптом и в розницу, по городу и области топливо доставляется автотранспортом. Помимо топлива, поставщики предлагают смазки, масла, а также емкости для ГСМ. Дизтопливо Челябинск потребляет для работы котлов, тепловых пушек, дизель-генераторов, отопительных приборов для цехов, коттеджей и  дач.

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