Abstract:
Sealed and thermally insulated tank comprising a tank wall on a carrier structure, the tank wall comprising an insulating barrier, sealed barrier and an anchoring member, the sealed barrier comprising: a first undulating metal membrane which is arranged on a first portion of the insulating barrier, a second undulating metal membrane which is arranged on a second portion of the insulating barrier, which are located at one side and the other of the anchoring member, along an assembly edge which is orientated parallel with a longitudinal direction of the anchoring member, the first and the second membrane undulating with a first series of undulations which intersect with the assembly edge, terminal undulation portions which are associated with the first series of undulations of the first membrane extending in a direction transverse to the assembly edge in the direction of the second membrane, beyond the terminal undulation portions which are associated with the first series of undulations of the second membrane.
Abstract:
A sealed and thermally insulated tank arranged in a bearing structure (1) to contain a fluid, said tank comprising walls fixed to said bearing structure, a tank wall having a primary sealed barrier, a primary insulating barrier, a secondary sealed barrier and a secondary insulating barrier, the tank comprising a through-element arranged through the tank wall, in which tank the tank wall around the through-element comprises: secondary insulating blocks arranged on the wall of the bearing structure around the through-element and being covered by a first sealed layer forming the secondary sealed barrier, a circular plate arranged parallel to the tank wall at the same level as the first sealed layer forming the secondary sealed barrier, a second sealed layer (723a-d) fixed in a sealed manner straddling the first sealed layer and the circular plate all around the circular plate.
Abstract:
A sealed and thermally insulating wall for a tank for storing fluid includes a heat-insulating panel and a sealing plate. The inner face of the heat-insulating panel has a stress-relieving slot.
Abstract:
Apparatus for producing a dihedral element with inwardly projecting corrugations. The uncorrugated dihedral or sheet metal blank is worked by punch and die members including a pair of lateral punches, having shaping edges in a common plane at an angle to each other and provided with adjacent sunk ends; a central punch between said ends; a die of complimentary configuration together with holding and retaining means; and means for relative synchronized and coordinate motions of the several tools.
Abstract:
The invention relates to a transport ship (1) comprising a trim control system (10) not in communication with the sea, in which the trim control system (10) comprises: at least one front liquid tank (20), at least one rear liquid tank (30), a roll-stabilizing tank (40) including at least one pair of partition walls (42) arranged to slow a flow of liquid in the roll-stabilizing tank (40) along the transverse axis (Y-Y′) of the ship, and a distribution device (60), the distribution device being in communication with said at least one front liquid tank (20), said at least one rear liquid tank (30), and said roll-stabilizing tank (40), and being designed to distribute a volume of liquid therebetween.
Abstract:
The present invention relates to a computer-implemented method and system for computing a transition parameter of a liquefied gas storage medium, the storage medium having at least one sealed and unrefrigerated tank, the transition parameter characterizing an evolution of a two-phase mixture contained in the sealed and unrefrigerated tank between an initial state and a final state, the two-phase mixture including a liquid phase and a vapour phase, the transition parameter may be a duration of the transition, a liquid bleeding rate or a vapour bleeding rate.
Abstract:
The invention relates to a system (1) for transferring liquefied gas between a first facility and a second facility, said transfer system (1) including:
an articulated arm (2) including a first proximal part (6) suitable for being mounted so that it can rotate on the first facility about a first vertical axis (A), a second median part (7) that is mounted pivoting on the first proximal part (6) and a third distal part (8) that is mounted pivoting on the second median part (7); and at least one transfer line (3, 4, 5), suitable for transferring liquefied gas between the first facility and the second facility, and including a flexible first proximal portion (15) suitable for being connected to a liquefied gas storage tank of the first facility; a rigid second median portion (16) that is fastened to the second median part (7) of the articulated arm (2) and a third distal portion (17) that is suspended on the third distal part (8) of the articulated arm (2) and has an end suitable for being connected to a manifold of the second facility, the second median portion (16) being provided with a valve (22).
Abstract:
The invention relates to monitoring and predicting the operation of a pump (30) arranged in a tank (3) for transporting a liquid product on board a ship (1), the pump (30) having a pump-head (31) arranged in the tank (3). A tripping risk parameter of the pump (30) is estimated at least as a function of a required net positive suction head of the pump (30), of the current filling level of the tank and of a current state of movement, which is a current sea state and/or a current state of movement of the ship, and a user is provided with an indication as a function of said tripping risk parameter. A particular application to ships for transporting a cold liquid product, more particularly to ships for transporting LNG of the type which consume the boil-off gas for their propulsion.