A container includes first and second hollow shells respectively including first and second inner surfaces to receive a portion of a pressure vessel (PV). The first hollow shell includes a fiber layer that is and at least partially impregnated with resin, and an energy dissipating material that is substantially concentric with the first inner surface and disposed between the first inner surface and the fiber layer. The second hollow shell includes a fiber layer that is at least partially impregnated with resin, and an energy dissipating material that is substantially concentric with the second inner surface and disposed between the second inner surface and the second fiber layer. The first and second hollow shells are attachable to one another to define a volume for at least partially enclosing the PV.

A double-walled tank including at least one link system linking the outer and inner chambers of the tank and including a central part linked to the inner chamber and at least three blades distributed around the central part, each blade extending between a first end linked to the central part and a second end which has a head linked to the outer chamber, each blade being sufficiently flexible to be deformed elastically between its first and second ends in a direction of displacement.

A storage tank includes a tank wall, a pressure regulator, a low-pressure coupling, and a fill coupling. The tank wall of the storage tank is configured to contain a stored fluid at an internal pressure within the tank wall, the tank wall including an outer layer, an inner layer, and a regulator mount. The pressure regulator of the storage tank is connected to the regulator mount and is configured to receive a flow rate of the stored fluid and reduce the stored fluid from the internal pressure to an output pressure. The flow rate of the stored fluid is provided, via the low pressure coupling and at the output pressure to an external system. The fill coupling extends through the tank wall and receives the stored fluid from a fluid source to be stored within the storage tank.

A method of manufacturing a pressure vessel (10) comprising the steps of dividing a wall (104) of a section (100) of the pressure vessel (10) into a first segment (120) and a second segment (150), separating the first segment (120) from the second segment (150), fitting apparatus (400) onto the first segment (120), and then re-attaching the first segment (120) and the second segment (150).

A tank for pressurized gas, such as hydrogen, comprises a structure defining a volume of the tank and having at least one opening. There are as many bases as there are openings, with each base being disposed in one of the openings. A sealing enclosure covers an entire internal surface of the structure and interfaces with the base. At least one conduit allows leakage between an outer surface of the sealing enclosure and an outside of the tank. The base has a recessed external profile with an undercut at an interface with the structure. The at least one conduit comprises at least one chute interposed between the structure and the base.

A feedthrough for use with a pressure vessel is presented. In some embodiments, the feedthrough is formed with an insulator portion with insulator threads that mate with threads of a body portion. In some embodiments, the threads can be rounded or square threads. In some embodiments, the insulator portion includes a through hole and a fill structure. The fill structure can include a fill-tube that can be used to communicate with the pressure vessel where the body portion is attached. In some embodiments, the insulator portion can include additional through-holes to receive one or more conductors.

An insulating wall fixing device for liquefied natural gas storage tanks includes: a base socket; and a securing stud inserted into the base socket. The base socket is formed on an upper surface thereof with an insertion hole through which the securing stud is inserted into the base socket and has an interior space in which one end of the securing stud is settled. The securing stud includes an insertion portion inserted into the interior space of the base socket through the insertion hole and a fastening portion protruding from the insertion portion outwardly of the base socket. The insertion portion includes a spherical shape and multiple leg members divided by a groove formed from one end of the insertion portion to the other end of the insertion portion. The multiple leg members of the insertion portion are retracted toward the groove.

A precast, prestressed concrete tank and method that facilitates construction of a primary inner tank within a secondary outer tank, and which permits for the construction of the primary inner tank after the secondary outer tank has been erected, but without requiring insertion through a top of the secondary outer tank, or by tunneling underneath the secondary outer tank, is disclosed. The primary inner tank has an inner wall and the secondary outer tank has an outer wall (precast, prestressed concrete) and wire windings. The primary inner tank is disposed inside of the secondary outer tank. The secondary outer tank has a plurality of first precast outer wall panels, and a temporary construction opening frame. The temporary construction opening frame defines an access doorway during construction of the tank. The temporary construction opening frame is disposed on a foundation base slab.

The invention relates to a tank device (1) for storing a gaseous medium, in particular hydrogen, comprising at least one tank container (2), wherein said at least one tank container (2) has a tank housing (20) with a tank neck (3). In addition, a connection screw element (5) is arranged in the tank neck (3), wherein said connection screw element (5) is in contact with a conical sealing seat (10) formed on an inner face (8) of the tank housing (20), thereby sealing a tank neck interior (30) of the tank neck (3), and the connection screw element (5) can be pretensioned by means of a union nut element (6) attached to an outer face (9) of the tank housing (20).

A tank for pressurized gas, such as hydrogen, comprises a structure, a base, a sealing jacket and a ring. The structure has a substantially cylindrical shape along an axis and includes at least one axial opening along the axis. The base is able to be positioned in said opening and comprises, on the inner side, a housing of revolution about the axis and a first fastener, and is pierced with at least one through pipe that is axial along the axis. The sealing jacket is flexible and tight, and is to cover the inner wall of the structure and comprises a neck able to be received in the housing. The ring is substantially of revolution about the axis, and comprises a second fastener able to cooperate with the first fastener in order to assemble the ring with the base, on the inner side, by bringing the ring closer to the base along the axis, so as to progressively press the neck between the ring and the base. The ring comes closer to the base following a movement parallel to the axis from the inside of the tank toward the outside. and A face of the housing opposite the neck and a face of the ring opposite the neck have a small taper.