Abstract

A cryogenic liquid storage tank comprising - a base plate (2,5) and side wall (3) extending upwardly, - the base plate (2) and side wall (3) comprising an outer leaf (3b) enveloping an inner leaf (3a), both forming structurally continuous transitions from the base plate (2) to the side wall (3), - the outer leaf (3b) part of the base plate (2) comprising a lower, outer leaf concrete bottom plate (5) on a substrate, - the bottom plate (5) continuous with an outer leaf reinforced concrete layer (50) of the outer side wall (3b), the outer leaf concrete layer (50) hoop stress reinforced, - an inward surface of the bottom plate (5) and concrete layer (50) of the outer leaf (3b) lined with a continuous outer leaf metallic membrane (6, 51), - a bottom insulation layer (7) arranged above the outer leaf metallic membrane (6) on the bottom plate (5), the bottom insulation layer (7) formed continuous with a wall insulation (14i) filled in an annular cavity (14) between the inner face of the outer leaf (3b) and an outer face of the inner leaf (3a), - the inner leaf (3a) comprising an inner leaf concrete bottom layer (8) on the bottom insulation portion (7), the bottom layer (8) formed structurally continuous with a hoop stress reinforced inner leaf wall outer concrete layer (11), both lined with a continuous inner leaf metal membrane (9, 12), - the inner leaf metal membrane (9, 12) lined with an inner leaf inner concrete layer (10, 13), - the outer outer concrete wall (50) supporting an insulated dome structure (4).

IPC Classes  ?

• F17C 3/02 - Vessels not under pressure with provision for thermal insulation
• E04H 7/18 - Containers for fluids or gases; Supports therefor mainly of concrete, e.g. reinforced concrete, or other stone-like material