دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: in tanks with floating roofs, the vertical range in which the gauging measurements are not accurate.

n: an enclosure built into the roof of a floating roof tank to contain and guide the float of an automatic tank gauge.

n: a tank covering that rests on the surface of a hydrocarbon liquid in the tank and rises and falls with the liquid level. A floating roof eliminates vapour space above the liquid in the tank and conserves light fractions of the liquid.

n: a tank in which the roof floats freely on the surface of the liquid contents except at low levels, when the weight of the roof is transmitted by its supporting legs to the tank bottom.

n: a device, usually in the form of a cylindrical vertical tube, used in floating roof tanks to prevent rotation of the roof.

n: the crude oil or product that is forced into the hatch or up around the edges of a floating roof by the weight of the roof.