Modification to floating roof tank design

Details Modification to floating roof tank design Modification to floating roof tank design

B - Operations, Transporting

65

D

20/15.19

B65D 88/34 (2006.01) B65D 88/38 (2006.01)

Patent

CA 1216121

ABSTRACT The present invention relates to floating roof storage tanks, having a tank shell which is supported on a fixed base, and a floating roof supported by the liquid stored in the tank. Included in the base or roof is a displacement device to substantially displace the stored liquid when the floating roof is in its lowest position. In this way the volume of the heel of liquid unable to be removed from the tank is reduced. The displacement device can take the form of a container which protrudes downwardly from the roof, or a layer of ballast on the base of the tank. The ballast layer can be a liquid heavier than the stored liquid which can be retained in a dam if desired.

436509

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