Abstract: A method for producing a sealed and thermally insulating wall for a fluid storage tank includes attaching plural anchoring elements to a support structure; installing modular formwork elements on the support structure, the modular formwork elements having a shape that protrudes relative to the support structure and that defines, with the support structure and the plurality of anchoring parts, compartments having an open side opposite the support structure; spraying insulating foam into the compartments through the open side to form plural insulating sectors made from sprayed insulating foam; arranging insulating junction elements in a stressed position in which they are stressed between the insulating sectors and capable of expanding when the insulating sectors contract, to ensure continuity of the thermal insulation; and attaching a sealing membrane to the anchoring elements.

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: A motorized support device for a handling system intended to handle at least one flexible pipe for transferring fluid; the support device comprises: a frame, a support borne by the frame, the support having an upper support surface for supporting the flexible pipe on the frame, and a drive member borne by the frame and able to drive the flexible pipe in two-way translation in a predetermined longitudinal direction.

Abstract: A sealed and insulating reservoir contains a pressurized cold fluid in a rigid, sealed enclosure. A fluidtight membrane is positioned to contact the cold fluid contained in the reservoir. An insulating barrier is placed between the fluidtight membrane and the internal surface of the rigid enclosure, with the insulating barrier forming a support surface to support the fluidtight membrane. A pressure balancing device is able to limit the pressure difference between a first sealed volume located inside the fluidtight membrane, and a second sealed volume located outside the fluidtight membrane. The pressure balancing device typically includes a fluid circuit having two chambers sealingly separated by a movable separator. The first chamber is linked to the first sealed volume, and the second chamber is linked to the second sealed volume. The movable separator exerts a loading force in the direction of the second chamber.

Abstract: A fluidtight and thermally insulating tank wall comprises: a multi-layer structure comprising a fluidtight barrier (5) and a thermally insulating barrier (4), retaining rods (22) attached to the bearing wall (7) between the insulating elements and extending in the direction of the thickness of the multi-layer structure to hold the multi-layer structure on the bearing wall, in which crossmembers (30) are attached to the retaining rods (22) such that in each instance a crossmember extends between two retaining rods at the interface between two insulating elements, the cover panels (11) of the insulating elements being connected to the crossmembers (30) so as to be held against the bearing wall via the crossmembers, and the fluidtight barrier (5) being connected to the crossmembers (30) so as to be held against the cover panels of the insulating elements via the crossmembers.

Abstract: A method of creating a watertightness barrier for a wall of a watertightened thermally insulating tank, involves steps of: arranging a repeating structure including alternately a strip of sheet metal and an elongate welding flange connected to the support surface, so that the turned-up lateral edges of the strip of sheet metal are positioned against the adjacent welding flanges, welding the turned-up lateral edge to the welding flange using a straight welded seam along a first longitudinal portion, continuing the straight welded seam with an end portion which is deviated in the direction of an upper edge corner, and producing a watertight edge corner welded seam along a second longitudinal portion of the strip of sheet metal such that the edge corner welded seam watertightly meets the end portion of the welded seam.

Abstract: A fluidtight tank including a bearing structure, a fluidtight barrier, the fluidtight barrier having a polygonal, cylindrical shape and including a vertical wall and a bottom wall, in which the said vertical wall of the fluidtight barrier has a plurality of vertical panels the bearing structure surrounding the vertical wall, and in which the bottom wall includes a plurality of rectangular components arranged in sectors that are the image of one another but rotated, the edges of the rectangular components of one of the sectors being respectively parallel and perpendicular to one of the vertical panels, wherein the number of the vertical panels is twice the number of the sectors.

Abstract: A sealed and thermally insulative tank includes thermal installation including a plurality of juxtaposed insulation blocks on the supporting structure and a seal including a plurality of sealing metal plates disposed on the insulation blocks and welded to each other. Mechanical coupling members extend through the thermal insulation at the level of the edges of the insulation blocks and hold the insulation blocks in bearing engagement on the supporting structure. The metal plates are disposed so that the edges of the metal plates are offset relative to the edges of the underlying insulation blocks. The metal plates are held in bearing engagement on the insulation blocks only by the coupling members. The mechanical coupling members are attached to the metal plates at the level of attachment points away from the edges of the metal plates.

Abstract: A sealed and insulating tank, notably for liquefied natural gas, includes, a supporting wall with anchor members disposed in a repeated pattern, a sealing barrier in contact with a product contained in the tank and a thermal insulation barrier disposed between the sealing barrier and the supporting wall, the thermal insulation barrier including a plurality of insulating panels disposed in the repeated pattern, each insulating panel being fixed to the supporting wall by an adhesive disposed on a lower surface of the insulating panel and one or more anchor members of the supporting wall each cooperating with a hole passing through the insulating panel. The number of anchor members per insulating panel is in the range 1 to 6, preferably 2 to 3. A method of fixing insulating panels employs a clamping tool.

Abstract: A cylindrical structure includes a vertical wall (3) and a bottom wall (2), the bottom wall having a plurality of sectors (4) which are rotated images of each other, each sector including a plurality of adjacent rectangular elements (8), characterized by the fact that the bottom wall has the shape of a regular polygon whereof each side (6) corresponds to one of the sectors, the edges of the rectangular elements of one sector being respectively perpendicular and parallel to the side of the polygon corresponding to the sector.

Abstract: A method of creating a watertightness barrier for a wall of a watertightened thermally insulating tank, involves steps of: arranging a repeating structure including alternately a strip of sheet metal and an elongate welding flange connected to the support surface, so that the turned-up lateral edges of the strip of sheet metal are positioned against the adjacent welding flanges, welding the turned-up lateral edge to the welding flange using a straight welded seam along a first longitudinal portion, continuing the straight welded seam with an end portion which is deviated in the direction of an upper edge corner, and producing a watertight edge corner welded seam along a second longitudinal portion of the strip of sheet metal such that the edge corner welded seam watertightly meets the end portion of the welded seam.

Abstract: Fluidtight and/or thermally insulated tank (1) comprising a bearing structure (4), a fluidtight barrier and/or a thermally insulating barrier, the said fluidtight barrier and/or the said thermally insulating barrier being of cylindrical shape and comprising a vertical wall (2) and a bottom wall (3), in which the said vertical wall has a plurality of vertical panels (8, 8?), the said bearing structure surrounding the said vertical wall, and in which the said bottom wall includes a plurality of rectangular components (5) arranged in sectors that are the image of one another but rotated, the edges of the rectangular components of one of the said sectors being respectively parallel and perpendicular to one of the said vertical panels (8), characterized in that the number of the said vertical panels is twice the number of the said sectors.

Abstract: Method of adhesively bonding second insulating blocks to a ship's inner hull using beads of mastic for the production of a sealed, thermally insulating tank for the transportation of liquefied gases, the tank having two successive sealing barriers alternated with two insulating barriers of first and second insulating blocks produced from plywood panels and containing or carrying thermally insulating materials, the second insulating blocks of the secondary insulating barrier being fastened directly against the inner hull, the method including applying beads of mastic to the lower face of the panels of the second insulating blocks along mutually parallel lines, positioning the second insulating blocks against the inner hull, and pressing thereof against the inner hull until polymerization of the mastic, wherein at least two of the beads on the lower face of at least one panel of the second insulating blocks are arranged along wavy parallel lines.

Abstract: A device for supplying fuel from an onboard energy producing installation on a ship transporting liquefied gas from at least one tank (2) of liquefied gas of said ship, comprising a pump (20) arranged in the bottom of the tank and a reservoir (23) arranged in the tank around the pump and designed to maintain a suction of the pump in a submerged state, characterized in that it comprises a liquid ejector (12) arranged in the tank so as to be able to suction the liquefied gas at the bottom of the tank, and a liquid circuit (21, 22, 24, 250) connecting an outlet of the pump to an inlet of the ejector, on one hand, and an outlet of the ejector to the reservoir, on the other hand.

Abstract: Panel including, in succession, a first rigid board forming the back of the panel, a first thermally insulating layer borne by the backboard, an impervious covering covering the first thermally insulating layer, a second thermally insulating layer which partially covers the impervious covering and a second rigid board covering the second thermally insulating layer, characterized in that it includes a film which covers at least part of the impervious covering which is not covered by the second thermally insulating layer, the film including at least one protective portion and at least one spew portion adjacent to the protective portion, the protective portion and the spew portion being able to be detached from the impervious covering independently of one another.

Abstract: Sealed, thermally insulated terrestrial tank built into a bearing structure (1), comprising a thermally insulating barrier comprising a plurality of insulating blocks (14), each insulating block comprising a plywood panel and containing or carrying thermally insulating material, the said insulating blocks (14) being fastened directly against the bearing structure (1) by means of beads (3) of mastic positioned on the panels of the said insulating blocks along mutually parallel lines, characterized in that at least two of the said beads (3) on the panel of at least one of the said insulating blocks (14) are arranged along wavy parallel lines.

Abstract: Sealed, thermally insulated tank has tank walls fixed to the load-bearing structure (1) of a floating structure, the tank walls having, in succession, in the direction of the thickness from the inside to the outside of the tank, a primary sealing barrier (8), a primary insulating barrier (6), a secondary sealing barrier (5) and a secondary insulating barrier (2), at least one of the insulating barriers includes juxtaposed non-conducting elements, each non-conducting element including a thermal insulation liner (63) and load-bearing elements that rise through the thickness of the thermal insulation liner in order to take up the compression forces, characterized in that the load-bearing elements of a non-conducting element include pillars (65) of small transverse section as compared to the dimensions of the non-conducting element in a plane parallel to the tank wall.

Abstract: Sealed, thermally insulated tank has tank walls fixed to the load-bearing structure (1) of a floating structure, the tank walls having, in succession, in the direction of the thickness from the inside to the outside of the tank, a primary sealing barrier (8), a primary insulating barrier (6), a secondary sealing barrier (5) and a secondary insulating barrier (2), at least one of the insulating barriers includes juxtaposed non-conducting elements, each non-conducting element including a thermal insulation liner (63) and load-bearing elements that rise through the thickness of the thermal insulation liner in order to take up the compression forces, characterized in that the load-bearing elements of a non-conducting element include pillars (65) of small transverse section as compared to the dimensions of the non-conducting element in a plane parallel to the tank wall.

Abstract: A cylindrical structure includes a vertical wall (3) and a bottom wall (2), the bottom wall having a plurality of sectors (4) which are rotated images of each other, each sector including a plurality of adjacent rectangular elements (8), characterized by the fact that the bottom wall has the shape of a regular polygon whereof each side (6) corresponds to one of the sectors, the edges of the rectangular elements of one sector being respectively perpendicular and parallel to the side of the polygon corresponding to the sector.

Abstract: A device for supplying fuel to an onboard energy production installation (5) on a liquefied gas transport ship (1) from at least one liquefied gas tank (2) of the ship includes a liquid ejector (12) arranged in the tank in order to suck liquefied gas at the level of the bottom of the tank, a circulating pump (20) arranged above the tank, a liquid circuit (21, 22, 23, 24) connecting an outlet of the circulating pump to an inlet of the liquid ejector and an outlet of the liquid ejector to an inlet of the circulating pump to permit the closed-loop circulation of a stream of liquefied gas through the liquid ejector, and a feed line (28) connecting the liquid circuit to the energy production installation.