A watertight and thermally insulated tank and a ship comprising such a tank

The tank design addresses stress concentrations at wall intersections by using intersecting corrugated membranes with deflection and closure elements, improving resistance to thermal and dynamic forces and reducing material needs.

FR3170570A1Pending Publication Date: 2026-06-26GAZTRANSPORT & TECHNIGAZ SA
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Patent Information

Application Number
FR2024014973
Authority / Receiving Office
FR · FR
Patent Type
Applications
Current Assignee / Owner
Filing Date
2024-12-20
Publication Date
2026-06-26

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Abstract

The invention relates to a sealed tank (1) comprising a first and a second adjacent wall (3; 7; 8); each of the first and second walls (3; 7; 8) comprising a corrugated sealing membrane (50; 52) meeting at a junction zone (60). According to the invention, the junction zone is adapted to allow: the connection of a first corrugation (56b1) of a third series of corrugations (56b) of the second membrane (52) to a first corrugation (56a1) of a first series of corrugations (56a) of the first membrane (50); the connection of a second corrugation (56b2) of the third series of corrugations (56b) of the second membrane (52) to a second corrugation (58a2) of a second series of corrugations (58a) of the first membrane (50); and the redirection of a third corrugation (56b3) of the third series of corrugations (56b) of the second membrane (52) to the first sealing membrane (50). (Figure 3 [Fig. 3])
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Citation Information

Patent Citations

  • Uncoupling of the corrugations of an impervious barrier

    WO2014167228A2

  • WATERTIGHT TANK WITH CORRUGATED SEALING MEMBRANES

    FR3050008A1

  • Membrane bonding structure and liquefied gas storage tank comprising same

    WO2019132535A1

  • Facility for storing and / or transporting liquefied gas

    WO2023198853A1