Abstract:
An impermeable and thermally insulated tank built into a load-bearing structure, the tank wall comprising: a thermally insulated barrier attached to a load-bearing wall and made of insulating blocks, juxtaposed in parallel rows separated from one another by gaps, an impermeable barrier supported by the thermally insulated barrier and made of welded metal sheets. Each insulating block carries, on the face of same opposite the load-bearing wall, two metal connecting strips arranged in parallel to the sides of the insulating block. The sheets of the membrane carried by the insulating block are welded to the strips. The connecting strips are rigidly connected to the insulating block carrying same. The sheets each have at least two orthogonal folds parallel to the sides of the insulating blocks, the folds being inserted into the gaps formed between two insulating blocks.
Abstract:
The invention relates to a sealed and thermally insulating tank wherein the distance between two adjacent corrugations of the corrugated metal sheets of the sealing membrane is equal to a predetermined corrugation interval io, the sealing membrane comprising, around a through-element:two notched rectangular metal plates 3io wide in the first direction and 7io long in the second direction, which are symmetrical to one another, each notched rectangular metal plate having three outer edges disposed in line with a plurality of anchor plates and welded onto the first plurality of anchor plates and an inner edge having a notch formed to avoid cutting a square window through which the through-element passes, and two metal retrofit plates disposed between the non-notched portions of the inner edges of the two notched rectangular metal plates.
Abstract:
An apparatus for storing and transporting a cryogenic fluid. The apparatus is carried onboard a ship. The apparatus including a sealed and thermally insulating tank intended for the storage of the cryogenic fluid in a state of liquid-vapor diphasic equilibrium, the apparatus including at least two sealed pipes passing through the tank in such a way as to define a passage for the removal of the vapor phase of the cryogenic fluid from inside to outside the tank, the two sealed pipes each including a collection end opening inside the tank at the level of the sealing membrane of the top wall. The collecting ends of two sealed pipes open to the inside of the tank at the level of two zones of the top wall which are situated at two opposite ends of the top wall.
Abstract:
The disclosure relates to a corner structure which is suitable for a sealed and thermally insulating tank for storing a fluid comprising a secondary thermal insulation barrier which is retained on a carrier structure, a secondary sealing membrane, a primary thermal insulation barrier and a primary sealing membrane which is intended to be in contact with the fluid contained in the tank, the corner structure comprising: a first panel and a second panel forming a corner of the secondary thermal insulation barrier, and comprising an external face intended to move opposite the carrier structure and an internal face; a corner arrangement of the secondary sealing membrane, which arrangement is fixed to the first and second panels; a first insulating block and a second insulating block of a primary thermal insulation barrier which are fixed to the first and second panels, respectively, and which rest against the corner arrangement of the secondary sealing membrane; and a corner of a primary sealing barrier comprising a first wing and a second wing which are fixed to the first and second insulating blocks, respectively.
Abstract:
An internal bottom wall of the double hull bears a sump structure comprising a rigid container arranged through the thickness of the bottom wall of the tank and intended to accommodate a suction member of a pump. The rigid container comprises a bottom wall situated at a level further toward the outside than the secondary sealing membrane of the bottom wall of the tank. The sump structure comprises a primary connecting plate surrounding the container, the primary connecting plate having a connecting surface extending parallel to the primary sealing membrane of the bottom wall of the tank, the primary sealing membrane of the bottom wall of the tank being attached in a sealed manner to the connecting surface all around the sump structure.
Abstract:
An impermeable and thermally insulated tank built into a load-bearing structure, the tank wall comprising: a thermally insulated barrier attached, to a load-bearing wall and made of insulating blocks, juxtaposed in parallel rows separated from one another, by gaps, an impermeable barrier supported by the thermally insulated barrier and made of welded metal sheets. Each insulating block carries, on the face of same opposite the load-bearing wall, two metal connecting strips arranged in parallel to the sides of the insulating block. The sheets of the membrane carried by the insulating block are welded to the strips. The connecting strips are rigidly connected to the insulating block carrying same. The sheets each have at least two orthogonal folds parallel to the sides of the insulating blocks, the folds being inserted into the gaps formed between two insulating blocks.
Abstract:
The disclosure relates to a sealed and thermally insulating tank for storing a fluid, said sealed tank comprising an outer support structure, a thermal insulating barrier retained on the support structure, and a sealing barrier supported by the thermal insulating barrier. In one embodiment, the thermal insulating barrier comprises a corner structure positioned at an intersection between a first and a second wall of the support structure, the corner structure comprising a first and a second insulating panel, each having an outer surface positioned facing the support structure, an inner surface provided with a member for securing the sealing membrane, and lateral edges, the first panel having an outer surface resting against the first wall of the support structure and a lateral edge resting against the second wall of the support structure, the second panel having an outer surface resting against the second wall of the support structure and a lateral edge resting against the outer surface of the first panel.
Abstract:
Sealed and thermally insulating tank in which a first tank wall and an adjacent second tank wall form an edge, the tank further including a sealed corner piece fixed in a sealed manner to the sealing membrane of the first tank wall and of the second tank wall, the corner piece including a sheet metal corner angle-iron situated in line with the edge, a first reinforcing flange, a second reinforcing flange, a first locking piece, a second locking piece wherein the locking pieces are fixed to the insulating barrier, the first reinforcing flange and the second reinforcing flange each include a tab fixed to the lower face of the first and second locking pieces, respectively.
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:
1. AN AUXILIARY DEVICE FOR SUPPORTING A TANK AGAINST ROLL AND PITCH AND ASSOCIATED WITH A SYSTEM OF MAIN MOVABLE AND SUBSTANTIALLY VERTICAL SUSPENSION SUPPORTS, SAID DEVICE COMPRISING AT LEAST ONE SET OF STATIONARY BEARING MEMBERS SUBSTANTIALLY ADJACENT TO ONE ANOTHER AND DISTRIBUTED ALONG THE PERIPHERY OF SAID TANK AT LEAST APPROXIMATELY IN ONE AND THE SAME RELATIVE HORIZONTAL PLANE, EACH BEARING MEMBER COMPRISING A SUBSTANTIALLY TRIANGULAR BRACKET SUPPORT COMPRISING IN PARTICULAR TWO OVERHANGING RODS, A STATIONARY EXTERNAL STRUCTURE SPACED FROM SAID TANK, (RESPECTIVELY AT TWO, AT LEAST HORIZONTALLY SPACED POINTS OF THE TANK LOCATED RESPECTIVELY ON EITHER SIDE OF THE NORMAL RELATIVE VERTICAL PLANE PASSING THROUGH SAID MEMBER), ONE OF THE ENDS OF SAID RODS BEING CONNECTED TO SAID STRUCTURE, SAID RODS PROJECTING RESPECTIVELY FROM TWO AT LEAST HORIZONTALLY SPACED POINTS OF SAID STRUCTURE LOCATED RESPECTIVELY ON EITHER SIDE OF THE NORMAL RELA-
TIVE VERTICAL PLANE PASSING THROUGH SAID MEMBER AND SAID RODS CONVERGING TOWARDS SAID PLANE, A GUIDING ELEMENT INTERCONNECTING THE OTHER ENDS OF SAID RODS IN SAID PLANE, A (FORCE-) FORCED GUIDING BEARING SOLID WITH SAID TANK WITH WHICH SAID ELEMENT COOPERATES, EACH GUIDING BEARING HAVING A GUIDING PATH FORMING A SLIDEWAY CONSTITUTED BY A RECTILINEAR ELONGATED RECESS FORMING A SUBSTANTIALLY HORIZONTAL STRAIGHT SLOT WITH PARALLEL OPPOSITE EDGES, THE LONGITUDINAL PLANE OF SYMMETRY OF SAID SLOT BEING IN SAID NORMAL RELATIVE VERTICAL PLANE, SAID GUIDING ELEMENT CONSTANTLY ENGAGING SAID SLIDEWAY WITH BILATERAL CONTACT WHILE MOVING IN SAID NORMAL RELATIVE VERTICAL PLANE.