RESERVOIR FOR OIL PRODUCTS STORING Russian patent published in 2009 - IPC B65D88/34 

FIELD: oil-and-gas production.

SUBSTANCE: reservoir with fixed cup consists of bottom, wall, intake - dispense elbows with protection lattice, breathing fittings, protection film with density greater than density of stored in reservoir product. Top edge of the protection film fixed along top of the reservoir wall, and bottom edge to the reservoir bottom central part. For equalising product steam pressure under the protection film and atmosphere, in case when gas bubbles ejected through intake - dispense elbows, the protection film fixing to wall top edge unit executed with ability of space under the protection film adjoining with atmosphere through breathing fittings. During reservoir filling the protection film generates due to product hydraulic pressure, and at the reservoir empting stretches along reservoir wall due to its own weight.

EFFECT: invention allows avoid using pontoon and makes reservoir resistant against gas bubbles entering through intake - dispense elbows, which provides full environment protection against evaporation.

1 dwg