Gaz Transport

Gaztransport Et Technigaz

Gaztransport & Technigaz

Pierre Jean

Jacques Dhellemmes

Bruno Deletre

Mickael Herry

Raphaël Prunier

Jacques R Guilhem

Jean-Michel Chauvin

Karim Chapot

Mickaël Herry

Bruno Guelton

Roger Lootvoet

Matthieu Malochet

Jean-Claude Letourneur

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.

Apparatus for storing and transporting a cryogenic fluid on-board a ship

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.

Sealed and thermally insulative tank integrated into a supporting structure

Watertight and thermally insulating tank built into the bearing structure (,) of a ship, the said tank comprising two successive watertightness barriers, one of them a primary one (,) in contact with the product contained in the tank, and the other a secondary one (,) located between the primary watertightness barrier and the bearing structure, a thermally insulating secondary barrier (,) being located between the secondary watertightness barrier and the walls of the bearing structure, characterized in that it comprises an impact-resistant mechanical protecting shield (,) located between the two watertightness barriers, the shield being held elastically pressed against the secondary watertightness barrier by metal fastening means mechanically connected to the secondary insulating barrier, thermal insulation being afforded only by the secondary insulating barrier.

Watertight and thermally insulating tank with simplified insulating barrier built into the bearing structure of a ship

Watertight and thermally insulating tank built into the bearing structure of a ship, the said tank comprising two successive watertightness barriers, the said bearing structure comprising walls (1) which form the internal sides of its double hull and two transverse bulkheads (2), these two watertightness barriers alternating with two thermally insulating barriers, the corner connection of the elements of the primary and secondary barriers, in the zones where the transverse bulkheads meet the internal sides, being achieved in the form of a connecting ring, the structure of which remains substantially constant right along the solid angle (3) of intersection between a transverse bulkhead and the internal sides, each connecting ring comprising a prefabricated composite girder (20) consisting of a rigid metal formwork (21) incorporated in a thermally insulating material (22), the said rigid formwork defining a central fixed anchorage zone (29) substantially at the intersection between the plane that bisects the connecting corner and the extension of the secondary watertightness barrier, for its mechanical connection to the said central anchorage zone, the opposite ends (23) of the said formwork being secured to the bearing structure by fixing means (26) borne respectively by a transverse bulkhead and by an internal side.

Watertight and thermally insulating tank with an improved corner

Impermeable and insulating tank built into a load-bearing structure, the tank having two successive sealing barriers alternated with two thermally insulating barriers, the secondary barriers and the primary insulating barrier consisting of a set of prefabricated panels, each panel comprising, in succession, a first rigid board, a first thermal insulation layer (104), a second thermal insulation layer (108), and a second rigid board, the junction regions between the primary insulating barrier elements of two adjacent panels being filled with insulating titles each consisting of a thermal insulation layer (115) covered with a rigid board, the continuity of the secondary sealing barrier being provided in the junction regions of two adjacent panels by flexible strips (120) which are impervious to gas and to liquid, each strip being hermetically bonded to a secondary insulating barrier element of a panel by a lateral marginal region (120a) and to a secondary insulating barrier element of the adjacent panel by an opposite lateral marginal region (120b), so that its central region (120c), which covers the junction region, is free to deform elastically and/or elongate with respect to the insulating tiles.

Impermeable and thermally insulating tank comprising prefabricated panels

A watertight, thermally insulating tank built into a bearing structure and including a primary watertight barrier contacting material within the tank and including strakes having edges turned upwardly towards an interior of the tank. A secondary watertight barrier is positioned between the primary watertight barrier and the bearing structure. The tank includes primary and secondary insulating barriers. The insulating barriers are alternately arranged with the watertight barriers. A weld support is mechanically held on the primary insulating barrier and forms an expansion joint. The strakes are butt-welded to two faces of the weld support. The secondary watertight barrier and the insulating barriers each include prefabricated panels fixed to the bearing structure. A zone at a junction between two adjacent panels is filled in at least to ensure continuity of the secondary watertight barrier. Each prefabricated panel is formed of a first rigid plate including a layer of thermal insulant. The panels and the thermal insulant together form the secondary insulating barrier. A flexible sheet is bonded substantially to the entire surface of the thermal insulant. The flexible sheet includes at least one continuous fine metal foil forming the secondary watertight barrier. A second layer of thermal insulant at least partially covers the flexible sheet and is bonded thereto. A second rigid plate covers the second thermal insulant layer and together they form the primary insulation barrier.

Watertight and thermally insulating tank built into a bearing structure

A watertight and thermally insulating tank built into the bearing structure of a ship. The tank includes a primary watertight barrier contacting a product contained within the tank. A secondary watertight barrier is located between the primary watertight barrier and a bearing structure of the ship. The tank also includes a primary thermal insulating barrier and a secondary thermal insulating barrier. The thermal insulating barriers are alternated with the watertight barriers. A fastener holds the primary thermal insulating barrier pressed against the secondary watertight barrier. A corner connection connects elements of the primary and secondary watertight barriers at a corner of the tank in zones where the transverse bulkheads meet the internal sides of the double hull of the ship at an intersection ridge. The corner connection secures the elements of the watertight barriers to opposite sides of a band along weld lines. The weld lines are substantially parallel. The band is secured to the bearing structure in the vicinity of the intersection ridge.

Watertight and thermally insulating tank built into the bearing

The invention relates to a watertight and thermally insulating tank built into the bearing structure of a ship, the said tank including two successive watertight barriers, one being a primary one (235) in contact with the product contained in the tank and the other being a secondary one (219) located between the primary barrier and the bearing structure of the ship, these two watertightness barriers being alternated with two thermally insulating barriers, the primary insulating barrier being held pressed against the secondary watertightness barrier by means of fastening means (218); the primary insulating barrier (220) is held pressed against the secondary watertightness barrier (203) by the primary watertightness barrier (235) itself, the said primary and secondary watertightness barriers being secured to the said fastening means (218) in a watertight fashion.

A sealed insulating vessel forming part of the supporting structure of a ship is provided. This vessel has two sealing barriers alternating with two insulating barriers. The tanks 3 of the secondary insulating barrier are coupled to the supporting structure of the ship by lugs 5 fixed at right angles with thick internal bulkheads, the bulkheads longitudinally supporting the coupling elements of the primary barrier. These coupling means consist of a sliding joint with a double fold disposed between two plates 21 of the primary insulating barrier, the two plates 21 being held by brackets welded to a weld support 18 which forms part of the coupling elements.

Sealed thermally insulating vessel forming part of the supporting

An upright tank of cylindrical or prismatic form has a sealed inner wall surrounded by insulation, and an outer casing. The bottom of the inner wall is formed from parallel strips of INVAR welded together at inturned flanged edges and is mounted in sliding relation to insulation beneath the bottom. The inner side wall is formed from parallel vertical bands of stainless steel with inwardly bent margins welded together and slidingly supported vertically to permit expansion and contraction. The inner side wall is joined to the inner bottom wall by a corner angle assembly including sheets and angles of INVAR supported by an annular beam. The annular beam includes straight beam sections supported at their ends by gussets which in turn are anchored to the exterior casing of the tank.

Thermally insulated tank for land storage of low temperature liquids

Apparatus for transporting liquified gas at low temperature, a supporting structure containing a self-supporting fluid-type tank, an annular supporting ring, an annular plate, comprising a plurality of sliding joints between said annular plate and ring which permit said ring to expand and contract radially with respect to said plate.

Apparatus for transporting fluids at low temperature

An improvement in fluid-tight isothermal tanks for holding liquefied gas and comprising sealing barriers of thin metal alternated with heat insulating barriers, the edges of two sealing barriers which intersect at a corner of the tank being connected by a deformable ring having an L-shaped section, with each flange comprising a strip of the same metal as said barrier attached to a plurality of spaced modules of heat insulating material, and the ring being fastened to an external supporting structure by draw bolts passing through the spaces between the modules.

Fluid-tight isothermal tank for liquefied gas

Ship having heat insulating compartments built into the framework of the ship has successive first sealing, first insulating, second sealing and second insulating barriers forming the compartment wall. The second sealing barrier is held to the hull of the ship by a fastener passing through the second insulating barrier. This fastener comprises an elongated stud welded to the hull of the ship, a head carried by the stud and a member fixed to the second insulating barrier and fastened to the head. The arrangement is such as to permit relative movement between the second insulating barrier and the hull substantially parallel to the hull.

Growing community of inventors

Dampierre, France

Pierre Jean