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External floating roof tank (double deck type) An external floating roof tank is a storage tank commonly used to store large quantities of petroleum products such as crude oil or condensate. It consists of an open- topped cylindrical steel shell equipped with a roof that floats on the surface of the stored liquid. The roof rises and falls with ...
Some storage tanks need a floating roof in addition to or in lieu of the fixed roof and structure. This floating roof rises and falls with the liquid level inside the tank, thereby decreasing the vapour space above the liquid level. Floating roofs are considered a safety requirement as well as a pollution prevention measure for many industries ...
A pontoon bridge (or ponton bridge), also known as a floating bridge, uses floats or shallow- draft boats to support a continuous deck for pedestrian and vehicle travel. The buoyancy of the supports limits the maximum load that they can carry. Most pontoon bridges are temporary and used in wartime and civil emergencies.
275 (in 1987), 200 (in 1995) The Flotta oil terminal is a major crude oil reception, processing, storage and export facility on the island of Flotta, in the south of Scapa Flow in the Orkney Islands. It receives and processes crude oil delivered by a subsea pipeline from the Piper, Claymore, Tartan and Golden Eagle platforms and associated fields.
Fixed roof tank. A fixed roof tank is a type of storage tank, used to store liquids, consisting of a cone- or dome-shaped roof that is permanently affixed to a cylindrical shell. Newer storage tanks are typically fully welded and designed to be both liquid- and vapor-tight. Older tanks, however, are often riveted or bolted, and are not vapor tight.
Auxiliary floating drydock. An auxiliary floating drydock is a type of US Navy auxiliary floating dry dock. Floating dry docks are able to submerge underwater and to be placed under a ship in need of repair below the water line. Water is then pumped out of the floating dry dock, raising the ship out of the water.
The Boat Deck level gave access to the outside promenade space, sun deck, the lifeboats, and the adjoining Gymnasium. The A-Deck level accessed first-class accommodation at the forward part of the ship and the grand public rooms located further aft via a long corridor. Entry vestibules opened onto the encircling Promenade Deck from the stairway.
Ten 2,500m 3 and 6500m 3 floating roof tanks used for the storage of finished grade petrol and kerosene; The LPG (liquefied petroleum gas) storage spheres were about 450m away from the nearest refinery unit and about 300 m (1,000 feet) from the nearest houses in the village. The shortest distance between an LPG sphere and the motorway was 42.4m ...