According to some embodiments, a cryogenic storage tank includes a manway formed in a body of the cryogenic storage tank. An inner manway lid is coupled to an inner wall of the cryogenic storage tank and disposed over at least a portion of the manway. An outer manway lid is coupled to an outer wall of the cryogenic storage tank and disposed over at least a portion of the manway. The inner and outer manway lids are configured to retain pressure within the cryogenic storage tank.

Disclosed is a pump tower disposed inside a liquefied gas storage tank so as to supply or discharge liquefied gas to/from the inside of the liquefied gas storage tank. The pump tower, according to one embodiment of the present invention, comprises: a discharge pipe used for discharging the liquefied gas in the liquefied gas storage tank; an emergency pipe equipped with an emergency pump at the lower end thereof; a charge pipe for supplying the liquefied gas into the liquefied gas storage tank; and a support, which is provided on the bottom of the liquefied gas storage tank, for enabling the vertical displacement of the pump tower and restricting the horizontal movement and rotation thereof. The support comprises: a lower body fixed to a hull side; an upper body fixed to a pump tower side; and a wedge member interposed between the lower body and the upper body.

The invention relates to a sealed tank wall used to form a sealed tank for storing a fluid, the wall comprising: a flat frame (3) including a perimeter (4) and longitudinal stiffening members (5) arranged inside the perimeter (4) in a longitudinal direction such that each longitudinal stiffening member extends from one side of the perimeter (4) to an opposite side of the perimeter (4), the perimeter (4) and the longitudinal stiffening members (5) being designed to form openings in the frame (3), lobed walls fastened to the frame (3) by welding about said openings to close said openings, such as to project into a thickness direction orthogonal to the frame (3) and towards the outside of the tank to be formed.

An inspection port system for a thermally insulated pipe, vessel, and the like is described. The inspection port system includes a base and a lid. The base defines a base plate with a central opening and a projecting sidewall projecting from a rim of the central opening. The projecting sidewall defines a tapered cylindrical inside surface. The lid defines a tapered cylindrical outside surface and includes a handle that can lock the lid to the base. The lid is dimensioned such that the tapered cylindrical outside surface can seal directly against the tapered cylindrical inside surface with the lid inserted into the base and the lid locked to the base by the handle. In use, the base may be attached to the jacket of the thermally insulated equipment and may provide a means of readily accessing the equipment for periodic inspection.

A pressurized closure assembly is provided which has a connector assembly to allow improved application of torque in limited space conditions to rotate a head away from the hub of the closure assembly.

A modular tank system comprising at least two pressure tanks (1,1) and a mounting frame (2), wherein each of the pressure tanks (1,1) comprises a pressure vessel (3) and a protection frame (4) within which the pressure vessel is arranged, the protection frame (4) is adapted such that multiple pressure tanks (1,1) may be mounted on top of each other and the pressure vessel comprises a vent outlet and a first inlet (5), wherein the vent outlet is arranged in an upper half of the pressure vessel, the first inlet (5) is arranged in a lower half of the pressure vessel and is fluidly connected to a tank process line (6), the tank process line comprises a first fluid connector (12) and a second fluid connector (23) on opposite ends of the tank process line, such that the second fluid connector (23) of a first pressure tank (1) is connectable to the first fluid connector (12) of a second pressure tank (1), when the second pressure tank (1) is mounted on top of the first pressure tank (1); and the mounting frame (2) comprises a base frame (15) upon which the at least two pressure tanks (1) may be mounted, the base frame comprises a frame process line (16); the frame process line (16) comprises at least two fluid connectors (20), each fluid connector (20) connectable to the first fluid connector (12) of a tank process line (6) and arranged such that the frame process line (16) may be fluidly connected to the tank process lines (6) of the at least two pressure tanks when the pressure tanks (1) are mounted upon the base frame (15) side by side.

A modular tank system includes at least two pressure tanks and a mounting frame. Each of the tanks includes a pressure vessel and a protection frame within which the vessel is arranged, the protection frame is adapted such that multiple tanks may be mounted on top of each other and the vessel includes a vent outlet and an inlet, where the outlet is arranged in an upper half of the vessel, the inlet is arranged in a lower half of the vessel and is fluidly connected to a tank process line, which includes a first fluid connector and a second fluid connector on opposite ends of the tank process line, such that the second connector of a first tank is connectable to the first connector of a second tank, when the second tank is mounted on top of the first tank; and the mounting frame includes a base frame.

Disclosed is a pump tower disposed inside a liquefied gas storage tank so as to supply or discharge liquefied gas to/from the inside of the liquefied gas storage tank. The pump tower includes a discharge pipe for discharging the liquefied gas in the liquefied gas storage tank, an emergency pipe equipped with an emergency pump at the lower end thereof, and a charge pipe for supplying the liquefied gas into the liquefied gas storage tank. The pump tower further includes a support provided on the bottom of the liquefied gas storage tank for enabling the vertical displacement of the pump tower and restricting the horizontal movement and rotation thereof. The support includes a lower body fixed to a hull side, an upper body fixed to a pump tower side and a wedge member interposed between the lower body and the upper body.

A liquefied gas storage tank includes: an inner shell storing a liquefied gas; an outer shell forming a vacuum space between the inner shell and the outer shell; and a fail-safe thermal insulating layer covering an outer side surface of the outer shell. According to this configuration, the fail-safe thermal insulating layer is not disposed in the vacuum space. This makes it possible to suppress the degradation over time of the degree of vacuum in the vacuum space.

An exemplary tank arrangement for storing liquefied natural gas includes a multilobe tank having a gas-tight shell, wherein the arrangement includes a gas-tight and heat-insulated partition wall arranged within the shell for dividing the tank into a gas storage space, which is configured to hold liquefied natural gas, and a tank connection space, which is configured to enclose tank connections and valves associated with them.