Double-shell tank and ship
AssigneeKawasaki Jukogyo Kabushiki Kaisha
InventorsHiroki Nakado, Masashi Shingo, Kazuto Gokan, Ryosuke Uraguchi
Life of this patent
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Abstract
A double-shell tank includes: an inner shell storing liquefied gas; an outer shell surrounding the inner shell, the outer shell forming a vacuum space between the inner shell and the outer shell; at least one metal sheet mounted to the inner shell, such that the metal sheet faces at least a bottom surface of the inner shell; an adsorbent placed on the metal sheet, the adsorbent adsorbing gas molecules by physisorption; and a thermal insulator covering the inner shell over the metal sheet.
Claims6
A double-shell tank comprising:
- an inner shell storing liquefied gas;
- an outer shell surrounding the inner shell, the outer shell forming a vacuum space between the inner shell and the outer shell;
- at least one metal sheet mounted to the inner shell, such that at least part of the metal sheet faces a bottom surface of the inner shell;
- an adsorbent placed on the metal sheet, the adsorbent adsorbing gas molecules by physisorption;
- and
- a thermal insulator covering the inner shell and the metal sheet;
- wherein
- the adsorbent is a porous granular or powdery material enclosed in a bag, and
- a plurality of openings are formed in the metal sheet.
A double-shell tank comprising:
- an inner shell storing liquefied gas;
- an outer shell surrounding the inner shell, the outer shell forming a vacuum space between the inner shell and the outer shell;
- at least one metal sheet mounted to the inner shell, such that at least part of the metal sheet faces a bottom surface of the inner shell;
- an adsorbent placed on the metal sheet, the adsorbent adsorbing gas molecules by physisorption;
- and
- a thermal insulator covering the inner shell and the metal sheet;
- wherein
- the at least one metal sheet includes a plurality of metal sheets, and
- end portions of the metal sheets that are adjacent to each other overlap each other, and stud bolts provided on the inner shell penetrate the overlapping portions.
A double-shell tank comprising:
- an inner shell storing liquefied gas;
- an outer shell surrounding the inner shell, the outer shell forming a vacuum space between the inner shell and the outer shell;
- at least one metal sheet mounted to the inner shell, such that at least part of the metal sheet faces a bottom surface of the inner shell;
- an adsorbent placed on the metal sheet, the adsorbent adsorbing gas molecules by physisorption;
- and
- a thermal insulator covering the inner shell and the metal sheet;
- wherein
- a plurality of stud bolts are provided on the inner shell,
- the thermal insulator includes a plurality of thermal insulation sheets, and
- the plurality of stud bolts are used for fixing the metal sheet and the plurality of thermal insulation sheets.
Dependencies are inferred from the claim text.