Tank comprising inner and outer enclosures and at least one duct passing through at least one deformable closure plate

A tank comprising:

• an outer enclosure,
• an inner enclosure positioned in the outer enclosure,
• first and second connection systems connecting the outer and inner enclosures,
• a first wall connected to the outer enclosure, the first wall including a first outer side surface facing the outer enclosure,
• a second wall connected to the inner enclosure, the second wall including a second outer side surface facing the inner enclosure, wherein the first and second walls at least partly separate the outer enclosure from the inner enclosure, and
• at least one duct passing through the first and second walls,
• wherein each of the first and second walls have (a) at least one attachment zone connected to the inner or outer enclosure, and b), for each duct, an orifice through which the duct passes, and (c) a connection zone surrounding the orifice and comprising a connection connecting the duct and the first or second wall,
• wherein the first and second walls each comprise at least one deformable zone interposed between the at least one attachment zone and the connection zone, the at least one deformable zone configured to allow the connection zone to move with respect to the at least one attachment zone.