EP3678928B1 - Ouvrage flottant comprenant une cuve apte a contenir du gaz combustible liquéfié - Google Patents

Ouvrage flottant comprenant une cuve apte a contenir du gaz combustible liquéfié Download PDF

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Publication number
EP3678928B1
EP3678928B1 EP18779417.7A EP18779417A EP3678928B1 EP 3678928 B1 EP3678928 B1 EP 3678928B1 EP 18779417 A EP18779417 A EP 18779417A EP 3678928 B1 EP3678928 B1 EP 3678928B1
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EP
European Patent Office
Prior art keywords
tank
floating structure
pipe
bearing wall
intermediate load
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP18779417.7A
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German (de)
English (en)
French (fr)
Other versions
EP3678928A1 (fr
Inventor
Alexandre Tocatlian
Abdoulaye DIOUF
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Gaztransport et Technigaz SA
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Gaztransport et Technigaz SA
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Publication of EP3678928A1 publication Critical patent/EP3678928A1/fr
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B11/00—Interior subdivision of hulls
    • B63B11/02—Arrangement of bulkheads, e.g. defining cargo spaces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B11/00—Interior subdivision of hulls
    • B63B11/04—Constructional features of bunkers, e.g. structural fuel tanks, or ballast tanks, e.g. with elastic walls
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B19/00—Arrangements or adaptations of ports, doors, windows, port-holes, or other openings or covers
    • B63B19/12—Hatches; Hatchways
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B25/00—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby
    • B63B25/02—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods
    • B63B25/08—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods fluid
    • B63B25/12—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods fluid closed
    • B63B25/16—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods fluid closed heat-insulated
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B27/00—Arrangement of ship-based loading or unloading equipment for cargo or passengers
    • B63B27/24—Arrangement of ship-based loading or unloading equipment for cargo or passengers of pipe-lines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B73/00—Building or assembling vessels or marine structures, e.g. hulls or offshore platforms
    • B63B73/40—Building or assembling vessels or marine structures, e.g. hulls or offshore platforms characterised by joining methods
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C13/00—Details of vessels or of the filling or discharging of vessels
    • F17C13/04—Arrangement or mounting of valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C3/00—Vessels not under pressure
    • F17C3/02—Vessels not under pressure with provision for thermal insulation
    • F17C3/025—Bulk storage in barges or on ships
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B2231/00—Material used for some parts or elements, or for particular purposes
    • B63B2231/02—Metallic materials
    • B63B2231/04—Irons, steels or ferrous alloys
    • B63B2231/06—Stainless steels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
    • F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
    • F17C2205/0352—Pipes
    • F17C2205/0355—Insulation thereof
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
    • F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
    • F17C2205/0352—Pipes
    • F17C2205/0367—Arrangements in parallel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2221/00—Handled fluid, in particular type of fluid
    • F17C2221/03—Mixtures
    • F17C2221/032—Hydrocarbons
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2270/00—Applications
    • F17C2270/01—Applications for fluid transport or storage
    • F17C2270/0102—Applications for fluid transport or storage on or in the water
    • F17C2270/0105—Ships
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2270/00—Applications
    • F17C2270/01—Applications for fluid transport or storage
    • F17C2270/0134—Applications for fluid transport or storage placed above the ground

Definitions

  • the present invention relates to a tank system for liquefied gas, of the type on board a ship or other floating structure.
  • Liquefied natural gas or LNG is mainly composed of methane.
  • the invention also applies to liquefied petroleum gas, and any combustible liquefied gas.
  • Liquefied natural gas can be taken on board a ship to be transported, this is referred to as an LNG carrier or LNG carrier.
  • the liquefied natural gas can be on board to constitute the, or at least one of, the fuel ensuring the propulsion of ships of any type, for example container ships.
  • a ship powered by LNG or in English “LNG Fueled Ship” or LFS we then speak of a ship powered by LNG or in English “LNG Fueled Ship” or LFS.
  • the invention applies more particularly to floating structures of this second category.
  • Liquefied natural gas in that it exhibits complete combustion, is much less polluting than conventional fuels such as gasoline or diesel. Liquefied natural gas has a high specific energy and, due to its liquefaction, providing strong compression, a high volume energy. Also, liquefied natural gas is fast becoming an advantageous alternative for the propulsion of ships.
  • the gas mainly because of its liquefaction, induces safety constraints linked to its containment and to the dangers accompanying a possible leak. These constraints lead to precautionary measures, such as, for example, those recommended by the international “IGF Code” regulation published by the International Maritime Organization, London.
  • a ship 10 comprises in a known manner a first deck 11 or upper deck, which may in particular be intended to transport a payload C and / or cabins and living spaces for passengers.
  • a tank 1 intended to contain combustible liquefied gas comprises at least one incoming pipe 2 (loading or filling) and at least one outgoing pipe 3 (unloading or drawing off). These pipes 2, 3 typically connect the tank 1 to a management device 7 which provides the interface both with the gas suppliers and with the consumers / users.
  • a typical consumer is the ship's propulsion engine 45.
  • An example of the management device 7 is described in the publication FR-A-3004513 .
  • each of these incoming 2 or outgoing 3 pipes with an isolating valve 4, advantageously placed as close as possible to the tank 1, in order to be able to close as closely as possible. of tank 1 in the event of a leak in a pipe.
  • connection device 5 or “Tank Connection Space” in English or TCS.
  • the “IGF code” regulation also recommends the presence of a cofferdam of at least 900 mm between the tank 1 and the management device 7.
  • a cofferdam or dry mesh is a confined volume, substantially empty, allowing physical segregation between a zone presenting a fire risk such as the management device 7 and a zone to be protected such as the tank 1.
  • EP 2 374 710 A2 discloses a floating structure according to the preamble of claim 1.
  • An idea underlying the invention is to provide a structure which meets these various constraints, while facilitating installation.
  • the claimed invention proposes a floating structure comprising a hull, at least a first deck and a wall. intermediate carrier disposed below the first bridge, the floating structure comprising a tank capable of containing gas liquefied fuel and disposed below the intermediate bearing wall, at least one pipe connecting the tank to a management device, in particular at least one filling pipe and at least one drawing pipe, and a connection device comprising at least one valve isolation valve disposed on said at least one pipe, in particular an isolation valve disposed on each of said pipes, and an enclosure enclosing said isolation valve or valves in a sealed manner, in which the tank is a membrane tank integrated in said shell, the walls of the tank comprising, successively from the outside to the inside of the tank, at least one thermal insulation layer carried by, and preferably anchored to, an interior surface of said shell and by a lower surface of the intermediate load-bearing wall and at least one waterproof membrane disposed on an inner surface of said thermal insulation layer, in which the di connection device is disposed above the intermediate load-bearing
  • Such a membrane tank is formed of a multilayer structure built directly on the supporting walls provided by the structure of the ship, unlike a self-supporting tank, which makes it possible to optimize the useful volume.
  • such a floating structure may include one or more of the following characteristics.
  • a space between the first bridge and the intermediate bearing wall is arranged in a cofferdam, preferably around the connection device.
  • connection device is supported above the intermediate load-bearing wall by said or each pipe, in particular by the filling pipe and / or the drawing pipe.
  • connection device is supported by the intermediate bearing wall.
  • the or each pipe comprises a primary pipe, one end of which is immersed in the tank and a secondary pipe, one end of which is connected to said isolation valve, the other end of the primary pipe being assembled to the other end of the secondary pipe.
  • the assembly of the primary pipe to the secondary pipe can be achieved by an assembly means which comprises a flange or a sleeve, or by welding the two pipes end to end.
  • the assembly means can be placed outside or inside the sealed enclosure.
  • the assembly means can be enclosed in a sealed enclosure which is independent and separate from the sealed enclosure which contains the isolation valves.
  • the advantage of this second sealed enclosure is to improve the protection of the ship against the risk of fire in the event of a leak in the assembly means or the pipes.
  • the ceiling wall of the tank and the intermediate load-bearing wall comprise a wall feed-through through which said at least one pipe, for example the primary pipes, passes in a sealed manner.
  • the wall feed-through is made in a portion of the intermediate bearing wall made of a material resistant to liquefied natural gas, preferably of stainless steel.
  • the length of a pipe between the passage and the isolation valve is as short as possible.
  • the isolation valve is located immediately above the intermediate bearing wall.
  • connection device is arranged in a hopper formed in the first bridge and comprises, facing the hopper, a means of tight fixing to the periphery of the hopper, which is preferably capable of allowing a catching up of clearance between the enclosure and the edge of the hopper.
  • said at least one filling pipe comprises a filling pipe in the gas phase and a filling pipe in the liquid phase
  • said at least one drawing line comprises a drawing line in the gas phase and a drawing line in the liquid phase, one or each pipe in gas phase opening at the top of the tank and one or each pipe in liquid phase opening at the bottom of the tank.
  • the enclosure is made of a material resistant to liquefied natural gas, preferably stainless steel.
  • the enclosure comprises an inspection hatch.
  • the walls of the tank comprise, successively from the outside to the inside of the tank, a secondary thermal insulation layer, a secondary waterproof membrane, a primary thermal insulation layer and a primary waterproof membrane. intended to be in contact with the product contained in the tank.
  • metal stiffeners are fixed to an upper surface of the intermediate bearing wall opposite the vessel wall.
  • the intermediate load-bearing wall can provide better rigidity while having a regular bottom surface for supporting the ceiling wall of the tank.
  • metal stiffeners can be attached to a lower surface of the first bridge.
  • the metal membrane (s) may have a thickness of, for example, between 0.5mm and 3mm, preferably between 0.7 and 1.5mm. Examples of such metal membranes are known, for example, in the applicant's NO96® and Mark III® technologies.
  • the space between the first bridge and the intermediate load-bearing wall can be designed in a fairly compact manner, with a view to maximizing the useful volume of the tank.
  • this space has a height of less than 1.80m, preferably less than 1.60m, or even less than 1.30m.
  • the intermediate load-bearing wall is located immediately below the first deck, without being separated from the latter by other horizontal metal partitions or by another deck.
  • the intermediate bearing wall comprises a recessed portion offset downward with respect to a remaining portion of the intermediate bearing wall and the connection device is placed in line with said recessed portion.
  • connection device arranged in line with said recessed portion is located in a zone where the distance between the first bridge and the intermediate bearing wall is greater than at the level of the remaining portion.
  • the height of the space between the first bridge and the intermediate load-bearing wall can thus be lower, in particular less than 1 m, for example close to 0.9 m.
  • the invention also relates to a method for filling the tank of a ship or other floating structure as mentioned above in which a fluid is conveyed through isolated pipes from a floating storage installation or land to the vessel's tank or other floating structure.
  • the invention also relates to a system comprising a ship or other floating structure as mentioned above, insulated pipes arranged so as to connect the tank installed in the hull of the ship or other floating structure to an installation. floating or terrestrial storage and a pump for driving a flow of fluid through the insulated pipes from the floating or terrestrial storage installation to the vessel's tank or other floating structure.
  • the shell may be a double shell, comprising an inner shell and an outer shell.
  • the invention takes advantage of the presence of at least a first bridge 11 or upper bridge and of an intermediate load-bearing wall 12. Judicious use of the upper deck 11 and of the load-bearing wall 12 and mainly of the space provided between them advantageously makes it possible to achieve the required cofferdam.
  • the supporting wall 12 is preferably a steel wall provided with stiffeners 47 on the upper side facing the cofferdam.
  • the presence of the stiffeners 47 on top of the supporting wall 12 makes it possible to leave the lower surface substantially flat and free of obstacles in order to be coated with a multilayer structure forming the sealed and thermally insulating tank wall.
  • first bridge 11 can be provided with stiffeners 46 on the lower side facing the cofferdam.
  • stiffeners 46 under the first bridge 11 makes it possible to leave the upper surface substantially flat and free of obstacles for the movement or storage of goods.
  • a tank 1, capable of containing liquefied natural gas is placed in a vessel 10.
  • This tank 1 is connected to a management device 7 by at least one filling pipe 2 and by at least one drawing pipe 3.
  • a connection device 5 comprises, on each of the pipes 2, 3, an isolation valve 4.
  • the control device connection 5 is completed by an enclosure 6 enveloping said isolation valves 4 in a sealed manner.
  • the tank 1 is a membrane tank integrated into the shell 10.
  • the walls of the tank, of which only the ceiling wall 50 is shown, comprise, successively from the outside towards the inside of the tank, an insulating layer.
  • secondary thermal 41 anchored on an interior surface of the shell 10 or of the intermediate load-bearing wall 12, a secondary waterproof membrane 42 anchored on the secondary thermal insulation layer 41, a primary thermal insulation layer 43 anchored on the secondary waterproof membrane 42 and a primary waterproof membrane 44 anchored to the primary thermal insulation layer 43.
  • the tank 1 is arranged below the intermediate bearing wall 12 and the connection device 5 is arranged above the intermediate bearing wall 12 and at least partly below the first bridge 11.
  • connection device 5 is placed completely under the first bridge.
  • Such a configuration corresponds to an arrangement where the management device 7 is below the first bridge 11, typically because the motor 14 is also below the first bridge 11.
  • connection device 5 is arranged in the first bridge 11, for example in a hopper 13 made in the first bridge 11.
  • management device 7 allows the management device 7 to be placed at least partially above the first bridge 11.
  • inter-bridge between the first bridge 11 and the intermediate load-bearing wall 12 constitutes a volume separating the tank 1 from the management device 7 and advantageously sealed to constitute a cofferdam, as recommended by the “IGF code” regulation. ".
  • This inter-deck space can thus advantageously be arranged as a cofferdam, supplementing where appropriate as waterproofing, for example by means of watertight partitions.
  • the cofferdam is made around the connection device 5, in order to secure said connection device 5.
  • each pipe 2, 3, between the end 25, 35 which plunges into the tank 1 and the end connected to the isolation valve 4, is divided into a primary pipe 21, 31 and a secondary pipe 22, 32.
  • a primary pipe 21, 31 is terminated, at the end opposite to the end 25, 35, by a primary assembly means 23, 33.
  • a secondary pipe 22, 32 is terminated, at the end opposite to the end connected to the isolation valve 4, by a secondary assembly means 24, 34.
  • a secondary assembly means 24, 34 is complementary in order to be able to be assembled with a primary assembly means 23, 33.
  • the primary assembly means 23, 33 is arranged so as to be able to be jointly arranged. facing and substantially in contact with the secondary assembly means 24, 34 corresponding homologous before.
  • An assembly means 23, 24, 33, 34 comprises any means making it possible to assemble two pipes, typically end to end.
  • an assembly means 23, 24, 33, 34 may be a flange or a sleeve capable of being assembled in pairs, by screwing, by clamping, or even by welding or any other means making it possible to connect two pipes 21, 22, 31, 32 to make a pipe 2, 3.
  • connection device 5 makes it possible to assemble the connection device 5 and its secondary pipes 22, 32 with the primary pipes 21, 31 coming from the tank 1 and thus to produce in a modular manner an assembly of the tank. 1 with connection device 5.
  • connection device 5 is presented near the tank 1 so that each secondary assembly means 24, 34 comes opposite, and possibly in contact, with its means primary assembly 23, 33 homologous. Then the assembly is carried out, for each pipe 2, 3 by screwing, clamping, or welding. During the assembly, the connection device 5 is thus advantageously placed, the secondary assembly means 24, 34 resting on the primary assembly means 23, 33 of the primary pipes 21, 31 and thus on the tank 1. This facilitates the establishment of the connection device 5 and contributes to reducing the play between the assembly means 23, 24, 33, 34, thus ensuring an optimal adjustment, then fixed by the assembly.
  • connection device 5 is supported by the secondary pipes 22, 32.
  • connection device 5 can be supported in different ways.
  • connection device 5, and more particularly its enclosure 6, can be fixed to stiffeners 46 or 47 or to a wall 36 extending in the space between the first bridge 11 and the intermediate bearing wall 12 as outlined in broken lines on the figure 2 .
  • the connection between the wall 36 and the enclosure 6 may include one or more fixing parts 37, for example fixing lugs as sketched in broken lines on the figure 2 .
  • the pipes 2, 3, at the level of the primary pipes 21, 31, can connect the inside of the tank 1 with the outside, the ceiling wall 50 of the tank 1 and the intermediate load-bearing wall 12 advantageously comprise a passage 8 wall.
  • This passage 8 allows a sealed passage of the primary pipes 21, 31.
  • One embodiment of such a passage is described in French patent application no. 1,653,076 filed April 7, 2016 , published under No FR-A-3050009 .
  • the ceiling wall 50 of the tank 1 is directly carried by the lower surface of the intermediate bearing wall 12.
  • the crossing 8 is therefore also made through the intermediate supporting wall 12.
  • the crossing is made in a portion of wall 18 which closes a corresponding hopper produced in the intermediate load-bearing wall 12.
  • the wall portion 18 can advantageously be prefabricated and / or be integrated into the tank 1 during its manufacture.
  • the wall portion 18 can be brought, in particular in the event of a leak, to be in contact with the gas. Also the wall portion 18 is preferably made of a material resistant to liquefied natural gas and in particular to the low temperatures that it can cause. According to a preferred embodiment, the wall portion 18 is made of stainless steel.
  • the wall feed-through 8 is preferably made in a flat wall, as illustrated, which eliminates the need for a more bulky structure such as the projecting liquid dome usually employed in an LNG vessel.
  • the primary function of the isolation valves 4 is to make it possible, in the event of a leak in a pipe 2, 3, to close the circuit between the leak and the tank 1. Also, the length of a pipe 2, 3 between the portion wall 18 and the isolation valve 4 is as short as possible, in terms of pipe length.
  • connection device in the thickness of the first bridge 11.
  • This mounting is carried out for example by means of a hopper 13 pierced in the first bridge 11, substantially to the outer shape of the enclosure 6 of the connection device 5.
  • a support and fixing means 51 is advantageously used.
  • This fixing means 51 comprises for example a peripheral frame fixed to the connection device 5 so as to face and / or bear on the contour of the hopper 13. A tight seal is then produced between the fixing means 51 and the first bridge 11.
  • the fixing means 51 is advantageously able to allow play to be taken up. This can be achieved. by means of a deformable component, such as a bellows. This can also be achieved by welding, the fixing means 51 being shaped to accommodate a more or less bulky weld bead depending on the need.
  • said at least one filling pipe comprises a filling pipe in gas phase 2G and a filling pipe in liquid phase 2L.
  • said at least one draw-off line comprises a gas-phase draw-off line 3G and a liquid-phase draw-off line 3L.
  • a gas phase pipe 2G, 3G advantageously opens at the top of the tank 1.
  • a liquid phase pipe 2L, 3L advantageously opens at the bottom of the vessel 1.
  • an enclosure 6 confines the isolation valves 4. Its role is to contain the gas in the event of a leak at the level of the isolation valves 4. Also, this enclosure 6 is preferably made of a material resistant to pressure. liquefied natural gas, such as for example stainless steel.
  • the enclosure 6 advantageously comprises an inspection hatch.
  • a bottom wall of the enclosure 6 is formed by a portion of the intermediate bearing wall 12.
  • a bottom wall of the enclosure 6 is formed by the wall portion 18.
  • the stiffeners 47 are here formed of mutually perpendicular walls arranged so as to form a grid with substantially square mesh projecting on the intermediate wall 12. These stiffeners 47 are interrupted at the wall portion 18 crossed by the pipes 2, 3, which here has a rectangular shape.
  • the enclosure 6 here has the shape of a rectangular parallelepiped, the length and width of which are substantially equal to the length and width of the wall portion 18, so that the wall portion 18 forms the bottom wall of this parallelepipedal enclosure .
  • the wall portion 18 can be crossed by a greater or lesser number of pipes.
  • FIGS. 5 and 6 illustrate two embodiments in which the intermediate bearing wall 12 does not have a planar shape but, on the contrary, has a recessed portion 16, which is offset downwards with respect to the rest of the intermediate bearing wall 12. Similar elements or identical to those of figures 2 and 3 bear the same reference number as in the figures 2 and 3 .
  • the wall feed-through 8 is made in the recessed portion 16, for example in the form of a wall portion 18.
  • the connection device 5 is arranged in line with the recessed portion 16 so as to be housed in an area. 17 where the height of the space between first bridge 11 and the intermediate load-bearing wall 12 is higher than elsewhere.
  • the zone 17 is delimited by connecting portions 15 of the intermediate bearing wall 12, which extend on either side of the recessed portion 16, or perpendicularly thereto. as illustrated, either obliquely.
  • connection device 5 can be fixed in different ways as described above.
  • the figure 5 illustrates a connection device 5 resting directly on the intermediate bearing wall 12, in line with the recessed portion 16.
  • the figure 6 illustrates fixing parts, for example welded, which support the connection device 5 above the intermediate bearing wall 12, in line with the recessed portion 16.
  • loading / unloading lines can be connected, by means of suitable connectors, to a marine or port terminal to transfer an LNG cargo from or to the tank 1.
  • the figure 4 represents an example of a maritime terminal comprising a liquefied natural gas supply station 82, an underwater pipe 83 and an onshore installation 81.
  • the liquefied natural gas supply station 82 is a fixed off-shore installation comprising a movable arm 84 and a tower 85 which supports the movable arm 84.
  • the movable arm 84 carries insulated flexible pipes 80 which can be connected to the loading pipes.
  • the movable swivel arm 84 adapts to all ship sizes.
  • a connecting pipe (not shown) extends inside the tower 85.
  • the liquefied natural gas supply station 82 allows the vessel's tank 10 to be filled from the shore installation 81.
  • the latter comprises liquefied gas storage tanks 86 and connecting pipes 87 connected by the underwater pipe 83 to the liquefied natural gas supply station 82.
  • the underwater pipe 83 allows the transfer of the liquefied gas between the supply station in liquefied natural gas 82 and the onshore installation 81.
  • pumps on board the vessel 10 and / or pumps fitted to the shore installation 81 and / or pumps fitted to the loading and unloading station are used. 82.
  • the maritime or port terminal can also be replaced by a supply vessel equipped with an LNG storage tank.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Ocean & Marine Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Architecture (AREA)
  • Structural Engineering (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
EP18779417.7A 2017-09-07 2018-09-06 Ouvrage flottant comprenant une cuve apte a contenir du gaz combustible liquéfié Active EP3678928B1 (fr)

Applications Claiming Priority (2)

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FR1758253A FR3070673B1 (fr) 2017-09-07 2017-09-07 Ouvrage flottant comprenant une cuve apte a contenir du gaz combustible liquefie
PCT/FR2018/052181 WO2019048788A1 (fr) 2017-09-07 2018-09-06 Ouvrage flottant comprenant une cuve apte a contenir du gaz combustible liquéfié

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EP3678928B1 true EP3678928B1 (fr) 2021-06-02

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EP (1) EP3678928B1 (ko)
JP (1) JP7159301B2 (ko)
KR (1) KR102601132B1 (ko)
CN (1) CN111212780B (ko)
FR (1) FR3070673B1 (ko)
RU (1) RU2759454C2 (ko)
WO (1) WO2019048788A1 (ko)

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KR100785478B1 (ko) * 2006-12-12 2007-12-13 삼성중공업 주식회사 액화가스수송선의 화물창 상부 구조
KR101210916B1 (ko) * 2009-10-16 2012-12-11 대우조선해양 주식회사 가스연료용 연료탱크를 가지는 부유식 구조물
KR100961868B1 (ko) * 2009-10-16 2010-06-09 대우조선해양 주식회사 가스연료용 연료탱크를 가지는 컨테이너선
KR20120000967A (ko) * 2010-06-28 2012-01-04 대우조선해양 주식회사 구획용 코퍼댐을 갖는 해양 구조물
KR20120000968A (ko) * 2010-06-28 2012-01-04 대우조선해양 주식회사 구획용 코퍼댐을 갖는 해양 구조물
FR2984454B1 (fr) * 2011-12-20 2015-04-03 Gaztransp Et Technigaz Paroi de cuve comportant une conduite
GB201217431D0 (en) * 2012-09-28 2012-11-14 Manning John A pipe joint
FR2998256B1 (fr) * 2012-11-16 2019-12-20 Gaztransport Et Technigaz Procede de fabrication d'une paroi de cuve etanche et thermiquement isolee
JP2014199024A (ja) * 2013-03-29 2014-10-23 日立工機株式会社 エンジン作業機
FR3004513B1 (fr) 2013-04-11 2015-04-03 Gaztransp Et Technigaz Procede et systeme de traitement et d'acheminement de gaz naturel vers un equipement de production d'energie pour la propulsion d'un navire
WO2015040268A1 (en) * 2013-09-20 2015-03-26 Wärtsilä Finland Oy Novel arrangement of access to lng fuel storage compartment
DE202014000942U1 (de) * 2014-01-31 2014-04-23 TECHNOLOG GmbH Handels- und Beteiligungsgesellschaft für Technologie Schiff
FR3019520B1 (fr) * 2014-04-08 2016-04-15 Gaztransport Et Technigaz Cuve etanche et thermiquement isolante logee dans un ouvrage flottant
FR3023257B1 (fr) * 2014-07-04 2017-12-29 Gaztransport Et Technigaz Cuve etanche et isolante disposee dans une double coque flottante
CN204264411U (zh) * 2014-11-10 2015-04-15 中集船舶海洋工程设计研究院有限公司 Lng燃料集装箱船
JP6466581B2 (ja) * 2014-12-16 2019-02-06 ワルトシラ フィンランド オサケユキチュア Ｌｎｇタンク及びそのタンク接続空間との間に少なくとも１つのパイプを接続するためのシステム
FR3032258B1 (fr) * 2015-01-30 2017-07-28 Gaztransport Et Technigaz Installation de stockage et de transport d'un fluide cryogenique embarquee sur un navire
FR3050009B1 (fr) 2016-04-07 2018-04-27 Gaztransport Et Technigaz Cuve etanche et thermiquement isolante

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JP7159301B2 (ja) 2022-10-24
CN111212780A (zh) 2020-05-29
WO2019048788A1 (fr) 2019-03-14
KR20200051707A (ko) 2020-05-13
EP3678928A1 (fr) 2020-07-15
RU2020108813A (ru) 2021-10-07
KR102601132B1 (ko) 2023-11-10
JP2020533225A (ja) 2020-11-19
RU2020108813A3 (ko) 2021-10-07
RU2759454C2 (ru) 2021-11-15
FR3070673B1 (fr) 2019-09-13
CN111212780B (zh) 2023-04-14
FR3070673A1 (fr) 2019-03-08

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