| 摘要 |
PROBLEM TO BE SOLVED: To provide a vertical double-shell cylindrical low-temperature storage correcting the heat absorption near a support exposing part of a skirt structure by improving a blocking condition of the cold heat of an inner tank, and reducing a support and a connecting member to improve the economical efficiency. SOLUTION: The inner tank 1 is composed of a hemispherical upper end plate 6, a cylindrical intermediate barrel plate 7 and a hemispherical lower end plate 8, a cold insulation layer 3 is formed between the inner tank and an outer tank 2 surrounding the inner tank, and the outer tank is composed of a dome-shaped roof plate 9, a cylindrical side plate 10, an inclined side plate 11, and a concave or horizontal disc-shaped bottom plate 12 having a radius of curvature smaller than the lower end plate. The inner tank and the outer tank are supported on the foundation by the cylindrical skirt 4 penetrated through a bottom plate end part of the outer tank to the inner tank, and the skirt part positioned in the cold insulation layer is elongated. COPYRIGHT: (C)2004,JPO&NCIPI
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