WO2023025501A1 - Storage facility for liquefied gas - Google Patents
Storage facility for liquefied gas Download PDFInfo
- Publication number
- WO2023025501A1 WO2023025501A1 PCT/EP2022/071131 EP2022071131W WO2023025501A1 WO 2023025501 A1 WO2023025501 A1 WO 2023025501A1 EP 2022071131 W EP2022071131 W EP 2022071131W WO 2023025501 A1 WO2023025501 A1 WO 2023025501A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- primary
- insulating
- block
- insulating block
- panel
- Prior art date
Links
- 238000003860 storage Methods 0.000 title claims abstract description 45
- 230000004888 barrier function Effects 0.000 claims abstract description 49
- 238000007789 sealing Methods 0.000 claims description 66
- 239000012528 membrane Substances 0.000 claims description 64
- 238000004873 anchoring Methods 0.000 claims description 31
- 238000009434 installation Methods 0.000 claims description 31
- 238000009413 insulation Methods 0.000 claims description 31
- 238000007667 floating Methods 0.000 claims description 23
- 229910052751 metal Inorganic materials 0.000 claims description 16
- 239000002184 metal Substances 0.000 claims description 16
- 239000006260 foam Substances 0.000 claims description 11
- 230000000284 resting effect Effects 0.000 claims description 9
- 239000012263 liquid product Substances 0.000 claims description 8
- 125000006850 spacer group Chemical group 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 2
- 239000003949 liquefied natural gas Substances 0.000 description 16
- 238000004078 waterproofing Methods 0.000 description 12
- 239000007789 gas Substances 0.000 description 11
- 230000008602 contraction Effects 0.000 description 9
- 239000011120 plywood Substances 0.000 description 5
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 4
- 229910000640 Fe alloy Inorganic materials 0.000 description 3
- 239000002131 composite material Substances 0.000 description 3
- 238000012856 packing Methods 0.000 description 3
- 229920000642 polymer Polymers 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 229910000990 Ni alloy Inorganic materials 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 239000003365 glass fiber Substances 0.000 description 2
- 239000011491 glass wool Substances 0.000 description 2
- 239000012212 insulator Substances 0.000 description 2
- 239000003915 liquefied petroleum gas Substances 0.000 description 2
- 239000011490 mineral wool Substances 0.000 description 2
- 239000010451 perlite Substances 0.000 description 2
- 235000019362 perlite Nutrition 0.000 description 2
- 230000000717 retained effect Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 229910001374 Invar Inorganic materials 0.000 description 1
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- 229910000914 Mn alloy Inorganic materials 0.000 description 1
- 229920005830 Polyurethane Foam Polymers 0.000 description 1
- 230000006399 behavior Effects 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000000593 degrading effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000002828 fuel tank Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000011572 manganese Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 239000011496 polyurethane foam Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- 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
- F17C3/027—Wallpanels for so-called membrane tanks
-
- 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
- F17C2201/00—Vessel construction, in particular geometry, arrangement or size
- F17C2201/01—Shape
- F17C2201/0147—Shape complex
- F17C2201/0157—Polygonal
-
- 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
- F17C2201/00—Vessel construction, in particular geometry, arrangement or size
- F17C2201/05—Size
- F17C2201/052—Size large (>1000 m3)
-
- 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
- F17C2203/00—Vessel construction, in particular walls or details thereof
- F17C2203/03—Thermal insulations
- F17C2203/0304—Thermal insulations by solid means
- F17C2203/0358—Thermal insulations by solid means in form of panels
-
- 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
- F17C2209/00—Vessel construction, in particular methods of manufacturing
- F17C2209/23—Manufacturing of particular parts or at special locations
- F17C2209/234—Manufacturing of particular parts or at special locations of closing end pieces, e.g. caps
-
- 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
- F17C2221/033—Methane, e.g. natural gas, CNG, LNG, GNL, GNC, PLNG
-
- 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
- F17C2221/035—Propane butane, e.g. LPG, GPL
-
- 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
- F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
- F17C2223/01—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the phase
- F17C2223/0146—Two-phase
- F17C2223/0153—Liquefied gas, e.g. LPG, GPL
- F17C2223/0161—Liquefied gas, e.g. LPG, GPL cryogenic, e.g. LNG, GNL, PLNG
-
- 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
- F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
- F17C2223/03—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the pressure level
- F17C2223/033—Small pressure, e.g. for liquefied gas
-
- 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
- F17C2260/00—Purposes of gas storage and gas handling
- F17C2260/01—Improving mechanical properties or manufacturing
- F17C2260/011—Improving strength
-
- 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
- F17C2270/0107—Wall panels
Definitions
- the invention relates to the field of storage facilities for liquefied gas comprising a sealed and thermally insulating tank, with a sealed membrane.
- the invention relates to the field of sealed and thermally insulating tanks for the storage and/or transport of liquefied gas at low temperature, such as tanks for the transport of Liquefied Petroleum Gas (also called LPG) having for example a temperature between -50°C and 0°C, or for the transport of Liquefied Natural Gas (LNG) at around -162°C at atmospheric pressure.
- LPG Liquefied Petroleum Gas
- LNG Liquefied Natural Gas
- a secondary thermally insulating barrier integrated into the load-bearing structure of a ship, comprising a secondary thermally insulating barrier, a secondary sealing membrane, a primary thermally insulating barrier and a primary waterproofing membrane.
- the vessel has a plurality of vessel walls joined together.
- the secondary waterproofing membrane comprises a plurality of parallel strakes. Each strake has a flat central portion extending in a first direction and two raised edges arranged on either side of the flat central portion and projecting towards the inside of the tank with respect to the central portion. The strakes are thus juxtaposed in a pattern repeated in a second direction and welded together at the raised edges.
- Such a secondary waterproofing membrane commonly referred to as a stretched membrane, does not have zones in the first direction to absorb tensile and compressive forces, unlike a corrugated membrane.
- the secondary waterproofing membrane is interrupted at an opening in order, for example, to allow the crossing of loading/unloading pipes.
- the secondary waterproofing membrane is stopped and is directly connected to the load-bearing structure in order in particular to take up the tensile and compressive forces resulting from the thermal contraction of the waterproofing membranes, the deformation of the hull linked for example to the deflection of the ship's beam, and the state of filling of the tanks.
- Document KR20200144178 describes a vessel wall at the level of such an interruption formed by a liquid dome.
- One idea underlying the invention is to simply mount the primary thermally insulating barrier close to the opening.
- Another idea underlying the invention is to limit the number of anchor points.
- Another idea underlying the invention is to improve the support of the primary waterproofing membrane near the opening.
- the invention provides a storage facility for liquefied gas comprising a metal support structure and a sealed and thermally insulating tank arranged in the support structure, the tank comprising in a direction of thickness from the outside towards the inside of the tank, a secondary thermally insulating barrier fixed to the supporting structure, a secondary metal sealing membrane placed on the secondary thermally insulating barrier, a thermally primary insulating membrane placed on the secondary sealing membrane, and a primary sealing membrane placed on the primary thermally insulating barrier and intended to be in contact with the liquefied gas, the load-bearing structure comprising an upper load-bearing wall, the tank comprising a ceiling wall fixed to the upper load-bearing wall, the ceiling wall being interrupted locally so as to delimit a loading/unloading opening intended to be crossed by loading/unloading pipes, wherein the secondary sealing membrane of the ceiling wall comprises a plurality of parallel strakes extending in a first direction, each strake comprising a planar central portion and two raised edges projecting
- the primary heat-insulating barrier of the ceiling wall can be constructed relatively simply along the edge of the loading/unloading opening extending in the first direction.
- the primary end insulating block and an end portion of the primary insulating panel facing the primary end insulating block are both supported by the secondary end insulating block, which limits the risk of appearance and amplitude of a thickness shift, in other words a step, at an interface between the primary insulating panel and the primary insulating end block.
- such a storage facility may comprise one or more of the following characteristics.
- the primary end insulating block has a higher stiffness than the primary insulating panel in the thickness direction.
- the primary end insulating block has a lower thermal contraction coefficient than the primary insulating panel in the thickness direction, preferably between the thermal contraction coefficient of the strakes and the thermal contraction coefficient of the primary insulation panel.
- the primary end insulating block and the primary insulating panel are fixed to the secondary end insulating block using a common anchoring device.
- an interface between the end secondary insulating block and the secondary insulating panel is located at a greater distance from the edge of the loading/unloading opening in the second direction than an interface between the insulating block end primary and the primary insulation panel.
- the primary end insulating block is made in the form of a box comprising a bottom plate, a cover plate parallel to the bottom plate and supporting spacer plates holding the cover plate away from the bottom plate, the box being filled with insulating packing.
- the end secondary insulating block is made in the form of a box comprising a bottom plate, a cover plate parallel to the bottom plate and supporting spacer plates holding the cover plate away from the bottom plate, the box being filled with insulating packing.
- the insulating packing is for example perlite, glass or rock wool.
- the bottom plate, the cover plate and the supporting strut plates are for example made of plywood.
- the primary insulating panel comprises successively along the direction of thickness at least one layer of insulating foam and at least one rigid plate.
- the insulating foam is a polymer foam, for example a polyurethane foam. According to one embodiment, this insulating foam has a density greater than 100 Kg/m 3 , preferably greater than or equal to 120 Kg/m 3 , in particular equal to 130 or 210 Kg/m 3 .
- the structural insulating foam is a reinforced foam, for example reinforced with fibers such as glass fibers.
- the bottom panel is a plywood or composite panel.
- the cover panel is a plywood or composite panel.
- the coefficient of thermal contraction of the primary insulating end block in said direction of thickness is less than the coefficient of thermal contraction in said direction of thickness of the primary insulating panel.
- the primary insulating end block is parallelepipedic in shape and has two side faces perpendicular to the first direction, at least one of the side faces being fixed to the secondary insulating end block.
- the primary insulating end block comprises a bearing surface and in which the anchoring device comprises a base fixed to the secondary insulating end block, a stud fixed to said base and developing along the direction of thickness and passing through in leaktight manner an orifice of the secondary waterproofing membrane, and a support element mounted on the stud and resting on the support surface of the primary end insulating block so as to retain it to the end secondary insulating block.
- At least one of the side faces of the primary end insulating block comprises a protuberance, the bearing surface being formed on the protuberance.
- the protrusion is formed of a plywood wedge.
- the primary insulating panel comprises a bearing surface and in which the bearing element is supported on the bearing surface of the primary insulating panel so as to retain the primary insulating panel to the secondary insulating block end.
- the bearing surface of the primary insulating panel is located at a corner of the primary insulating panel.
- the anchoring device further comprises a flange forming an integral part of the stud, the flange projecting radially outwards from the stud and being fixed in leaktight manner to the secondary sealing membrane around the orifice of the secondary waterproofing membrane.
- the anchoring device further comprises a sealing washer which is engaged on the stud and which comprises a flange fixed in leaktight manner to the secondary sealing membrane around the orifice of the membrane of secondary sealing.
- the anchoring device comprises a deformable seal sealingly connecting the flange to the stud so as to allow relative movement between the flange and the stud.
- the secondary insulating end block is of parallelepiped shape and comprises two side faces perpendicular to the first direction, at least one of the side faces being fixed to the load-bearing structure using a fixing device , the base of the anchoring device being fixed to said lateral face so that the anchoring device is located in line with the fixing device in the direction of thickness.
- said lateral face comprises a lower protrusion comprising a bearing surface and an upper protrusion
- the fastening device comprising at least one threaded rod developing in the direction of thickness and fixed to the upper load-bearing wall, and a retaining plate mounted on the threaded rod and resting on the bearing surface of the lower protrusion
- the base of the anchoring device comprising a lower plate and an upper plate sandwiching the upper protrusion
- the primary thermally insulating barrier of the ceiling wall comprises a row of primary end insulating blocks adjacent to the edge of the loading/unloading opening, the primary end insulating blocks being juxtaposed others in the first direction, and comprises a row of primary insulating panels juxtaposed to each other in the first direction.
- the row of end primary insulating blocks comprises a first end primary insulating block and a second end primary insulating block adjacent to the first end primary insulating block and the row of primary insulating panels comprises a first primary insulation panel adjacent to the first primary end insulation block, and a second primary insulation panel adjacent to the second primary end insulation block, the first and second primary end insulation blocks and the first and second primary insulation panels being fixed to the secondary end insulating block using a common anchoring device.
- the secondary thermally insulating barrier of the ceiling wall comprises a row of secondary end insulating blocks adjacent to the edge of the loading/unloading opening, the secondary end insulating blocks being juxtaposed to each other others in the first direction, the base of the anchoring device being fixed to two adjacent secondary insulating end blocks at an interface formed between the secondary insulating end blocks.
- the secondary thermally insulating barrier comprises the secondary end insulating block and secondary insulating panels, the secondary insulating panel adjacent to the secondary end insulating block in the first direction comprising a structure different from the other secondary insulating panels , for example so as to be of greater rigidity in the direction of thickness than the other secondary insulating panels or to have a lower coefficient of thermal contraction.
- the deformable seal comprises a deformable bellows, said deformable bellows being hollow and developing around and axially along the stud.
- the deformable bellows is for example made of stainless steel.
- the anchoring device comprises a bell covering the deformable seal, the bell having a cylindrical shape.
- the primary waterproofing membrane can be made in various ways.
- the primary sealing membrane of the ceiling wall comprises a plurality of corrugated metal plates juxtaposed in the first direction and the second direction, and welded to each other, the primary sealing membrane comprising a first series of undulations extending in the first direction and a second series of undulations extending in the second direction.
- the tank comprises a lid arranged in the loading/unloading opening, the lid comprising a metal sealing wall and a thermal insulation structure located between the sealing wall and the upper load-bearing wall, the lid being fixed to the upper load-bearing wall, for example by welding, the metal sealing wall being connected in leaktight manner to the primary sealing membrane by a metal connecting strip.
- the thermal insulation structure of the cover comprises a plurality of insulating cover blocks, each insulating cover block being made in the form of a box comprising a cover plate and a bottom plate kept apart by supporting spacer plates and sides of the box, the box being filled with insulating gasket.
- the secondary sealing membrane, the sealing wall of the lid and/or the connecting strip are made of a metal with a low coefficient of expansion, for example an alloy of iron and nickel having a coefficient of thermal expansion between 0.5.10 -6 and 2.10 -6 K -1 . It is also possible to use alloys of iron and manganese whose coefficient of expansion is typically of the order of 7.10 -6 K -1 .
- the secondary sealing membrane is made of stainless steel.
- the supporting structure comprises a rear cofferdam wall and a front cofferdam wall located on either side of the tank in the first direction, and two longitudinal walls located on either side of the tank in the second direction, the loading/unloading opening being formed close to one of the cofferdam walls, for example the rear cofferdam wall.
- the edge of the loading/unloading opening is a transverse end edge of the loading/unloading opening which is located between the opening and one of the longitudinal walls in the second direction.
- Such a storage installation can be an onshore storage installation, for example for storing LNG or be a floating, coastal or deep-water structure, in particular an LNG carrier, a floating storage and regasification unit (FSRU), a floating production and remote storage (FPSO) and others.
- FSRU floating storage and regasification unit
- FPSO floating production and remote storage
- Such an installation can also serve as a fuel tank in any type of ship.
- the aforementioned storage installation is made in the form of a floating structure, said supporting structure being constituted by a double hull of the floating structure and the first direction is a longitudinal direction of the floating structure. .
- the floating structure is a ship for transporting a cold liquid product.
- the invention also provides a transfer system for a cold liquid product, the system comprising an aforementioned storage installation, insulated pipes arranged so as to connect the tank installed in the hull of the ship to an external installation floating or onshore storage facility and a pump for driving a flow of cold liquid product through the insulated pipes from or to the external floating or onshore storage facility to or from the ship's tank.
- the invention also provides a method for loading or unloading an aforementioned storage installation, in which a cold liquid product is conveyed through insulated pipes from or to an external floating or terrestrial storage installation towards or from the vessel's tank.
- FIG. 1 There is a partial perspective view from the inside of a ceiling wall according to a first embodiment, in an area close to a loading/unloading opening of the tank, said view corresponding to detail II of the .
- Figures 2 to 7 are shown in an inverted orientation relative to their actual position in a storage facility.
- the ship 70 represented on the comprises a storage installation 1 comprising four tanks 71 arranged in the supporting structure 2 formed by the inner hull of the vessel 70 and fixed thereto.
- Each tank 71 is polyhedral in shape and comprises a plurality of tank walls assembled together so as to form an internal space 3, and in particular a ceiling wall 4, a rear cofferdam wall 5 and a front cofferdam wall 6
- the front 6 and rear 5 cofferdam walls are spaced apart in the longitudinal direction L of the ship 70 and are fixed in the upper part to the ceiling wall 4.
- an opening of loading / unloading 7 formed in the ceiling wall 4 in order to pass through the loading / unloading pipes.
- the ceiling wall 4 is fixed to an upper load-bearing wall 8 of the load-bearing structure 2.
- the upper load-bearing wall 8 is also provided with orifices allowing the loading/unloading pipes to pass through the load-bearing structure 2.
- the loading/unloading opening 7 serves as a point of entry for various LNG handling equipment, namely for example a filling line, an emergency pumping line, unloading lines linked to unloading pumps, an spray line, a supply line linked to a spray pump, etc.
- LNG handling equipment namely for example a filling line, an emergency pumping line, unloading lines linked to unloading pumps, an spray line, a supply line linked to a spray pump, etc.
- a filling line namely for example a filling line, an emergency pumping line, unloading lines linked to unloading pumps, an spray line, a supply line linked to a spray pump, etc.
- the loading/unloading opening 7 is provided in the ceiling wall 4 near the rear cofferdam wall 5.
- FIG. 1 There shows a perspective view of a ceiling wall 4 from inside the tank according to one embodiment, in a zone close to a loading/unloading opening 7. In this figure, only the secondary thermally insulating barrier 10 of the ceiling wall 4 is shown.
- the multilayer structure of the ceiling wall 4 will be more particularly described below.
- the multilayer structure of the ceiling wall 4 of a sealed and thermally insulating tank 71 for storing a liquefied gas, such as liquefied natural gas (LNG), comprises successively, in the thickness direction, from the outside towards the inside of the tank, a secondary thermally insulating barrier 10 retained on the upper load-bearing wall 8, a secondary sealing membrane 11 resting on the secondary thermally insulating barrier 10, a primary thermally insulating barrier 12 resting on the secondary sealing 11 and a primary sealing membrane 13 resting on the primary thermally insulating barrier 12 and intended to be in contact with the liquefied natural gas contained in the tank 71.
- LNG liquefied natural gas
- the secondary thermally insulating barrier 10 comprises a plurality of secondary insulating panels 14 which are anchored to the upper load-bearing wall 8 by means of fixing devices.
- the secondary insulating panels 14 have a generally parallelepipedal shape and are for example arranged in parallel rows in the longitudinal direction L and in the transverse direction T perpendicular to the longitudinal direction L.
- the secondary sealing membrane 11 of the ceiling wall 4 comprises a continuous layer of metal strakes, with raised edges.
- the strakes comprise a flat central portion resting on the secondary insulating panels 14 of the secondary thermally insulating barrier 10 and also comprise two raised edges arranged on either side of the flat central portion in the transverse direction T and projecting towards the inside the tank relative to the central portion.
- the strakes are welded by their raised edges to parallel welding supports which are fixed in grooves made at the level of the surface of the secondary insulating panels 14 in contact with the secondary sealing membrane 11.
- the strakes are, for example, made in Invar ® : that is to say an alloy of iron and nickel whose coefficient of expansion is typically between 1.2.10 -6 and 2.10 -6 K -1 .
- the primary thermally insulating barrier 12 of the ceiling wall 4 comprises a plurality of primary insulating panels 18 which are anchored to the secondary insulating panels 14 by means of couplers 9.
- the primary insulating panels 18 have a generally parallelepipedal shape. In addition, they may have dimensions substantially identical to or different from those of the secondary insulating panels 14. In the mode shown in , the primary insulating panels 18 are positioned offset from the secondary insulating blocks 14 in the longitudinal direction L, and also in the transverse direction T.
- the secondary insulation panels 14 and the primary insulation panels 18 comprise a bottom plate 15, a cover plate 16 and one or more layers of insulating polymer foam 17 sandwiched between the bottom plate 15, the cover plate 16 and glued to them.
- the insulating polymer foam 17 may in particular be a polyurethane-based foam, optionally reinforced with fibers, in particular glass fibers.
- the primary sealing membrane 13 comprises a plurality of corrugated metal plates juxtaposed in the longitudinal direction L and the transverse direction T, and welded to each other.
- the primary sealing membrane 13 comprises a first series of corrugations 27 extending in the longitudinal direction L and a second series of corrugations 28 extending in the transverse direction T.
- the corrugations of the second series of corrugations 28 interrupted by opening 7 are closed with a wave cap 29.
- the ceiling wall 4 is interrupted locally in order to allow the crossing of the loading/unloading pipes.
- the sealing membranes 11, 13 and the thermally insulating barriers 10, 12 are interrupted all around the loading/unloading opening 7, as represented on the .
- the tank 71 comprises a cover (not shown) arranged in the loading/unloading opening 7.
- the cover comprises a wall of metal sealing and a thermal insulation structure located between the metal sealing wall and the upper load-bearing wall 8.
- the lid is fixed to the upper load-bearing wall by welding ensuring continuity of the upper load-bearing wall at the level of the entire tank.
- the metal sealing wall achieves the continuity of the seal with the primary sealing membrane 13 of the ceiling wall 4 while the thermal insulation structure provides the continuity of the insulation.
- the thermal insulation structure may comprise one or more insulating cover blocks, produced for example in the form of a box comprising a bottom plate, a cover plate and supporting spacer plates extending, in the thickness direction, between the bottom plate and the cover plate and delimiting a plurality of compartments filled with an insulating filling, such as perlite, glass or rock wool.
- the cover insulating block(s) comprise passage holes (not shown) allowing the passage of the loading/unloading pipes.
- the sealing wall of the lid comprises for example a plurality of flat metal plates welded to each other.
- the sealing wall further comprises a plurality of lid orifices (not shown) intended to be traversed by the loading/unloading pipes.
- the storage installation 1 further comprises a metal connecting strip (not shown) making it possible to connect the sealing wall of the lid and the primary sealing membrane 13 of the ceiling wall 4 in a sealed manner.
- the secondary sealing membrane 11 is interrupted at the level of the edges of the opening loading / unloading 7 and is directly connected in a sealed manner to the upper load-bearing wall 8 in order to seal the separation between the secondary thermally insulating barrier 10 and the cover.
- This connection is made using a secondary connection angle 36 comprising a first secondary wing 37 and a second secondary wing 38 connected to the first secondary wing 37, the first secondary wing 37 being connected to the secondary sealing membrane 11 and the second secondary wing 38 being welded to an anchor plate 69 integral with the upper load-bearing wall 8, as shown in particular in and in .
- the secondary thermally insulating barrier 10 of the ceiling wall 4 comprises a row of secondary end insulating blocks 34 adjacent to the transverse end edge 25, as shown in .
- the end secondary insulating blocks 34 are juxtaposed to each other in the longitudinal direction L and are anchored to the upper load-bearing wall 8 by means of fixing devices 41.
- the end secondary insulating blocks 34 are arranged in staggered with the secondary insulating panels 14 of the row directly adjacent to the secondary end insulating blocks 34. Indeed, the interface between two secondary insulating end blocks 34 adjacent is not aligned with the interface between two insulating panels secondary 14 adjacent.
- the secondary insulating end blocks 34 have a generally parallelepipedal shape and each have two side faces perpendicular to the longitudinal direction L.
- Each side face comprises a lower protrusion 46 comprising a bearing surface and an upper protrusion 47, as shown in particular Figures 5 and 6.
- the lower protrusion 46 is located at a lower part of the side face close to the upper bearing wall 8, while the upper protuberance 47 is located at an upper part of the side face of so as to be close to the secondary sealing membrane 11.
- the lower 46 and upper 47 protrusions are for example made of plywood or composite.
- the fixing device 41 comprises two threaded rods 42 adjacent to each other in the transverse direction T and developing along the direction of thickness.
- the threaded rods 42 of the fixing device 41 are fixed to the upper bearing wall 8.
- the fixing device 41 also comprises a retaining plate 43 mounted on the threaded rod 42 and held to the threaded rod by means of a nut .
- the retaining plate 43 bears against a bearing surface of the lower protuberance 46, as can be seen in particular in , so as to press the secondary insulating end block 34 against the upper load-bearing wall 8.
- a single fixing device 41 is used at the interface between two secondary insulating end blocks 34 so that the retaining plate 43 bears against the lower protrusion 46 of the two secondary insulating end blocks 34 adjacent to it. one to another.
- the primary thermally insulating barrier 12 of the ceiling wall 4 comprises, in the same way as the secondary thermally insulating barrier 10, a row of primary insulating end blocks 39 adjacent to the transverse end edge 25 of the loading opening. / unloading 7.
- the primary end insulating blocks 39 are located in line with a first part of the secondary end insulating blocks 34. Indeed, the dimension of the primary end insulating blocks 39 in the transverse direction is less than the dimension of the end secondary insulating blocks 34.
- the end primary and secondary insulating blocks 34, 39 are thus aligned at their faces facing the opening 7.
- the primary insulating block end 39 has two side walls perpendicular to the longitudinal direction L and which each has a protrusion 44 formed on a lower part of the side wall of the primary insulating block of end 39.
- the primary end insulating block 39 is anchored at each of these side walls using an anchoring device 45 to a secondary end insulating block 34.
- the primary insulating panel 18 directly adjacent to the primary end insulating block 39 is also anchored using the same anchoring device 45 to the primary end insulating block 39.
- the primary insulating panel 18 is also located in line with a second part of the end secondary insulating block 34, the first part and the second part being adjacent.
- the secondary and primary insulating barriers are staggered along the transverse direction T, which means that the interface between the end secondary insulating block 34 and the secondary insulating panel 14 is misaligned in the transverse direction T with the interface between the primary end insulating block 39 and the primary insulating panel 18. Thanks to this arrangement, it is possible to distribute any thickness differences that may result from differences in contraction, in service, between the end insulating blocks on the one hand, and the insulating panels on the other. These differences in contraction may result from different rigidities and/or different thermal behaviors. By spacing the interfaces, we avoid accumulating all the deviations at the same point, which avoids degrading the flatness of the membranes.
- the primary insulating panels 18 and the secondary insulating panels 14 are also staggered along the longitudinal direction L, which means that the interface between two adjacent secondary insulating panels 14 in the longitudinal direction L is misaligned with the interface between two adjacent primary insulating panels 18 in the longitudinal direction L.
- the anchoring device 45 comprises a base 48 fixed to the upper protrusion 47 of the secondary end insulating block 34, a stud 49 fixed to said base 48 and developing along the direction of thickness and passing through an orifice in sealed manner of the secondary sealing membrane 11, and a bearing element 50 mounted on the stud 49 and resting on a bearing surface formed on the protrusion 44 of the primary insulating end block 39 so as to hold it to the block secondary end insulator 34.
- the support element 50 is for example made in the form of a plate retained on the stud 49 with the aid of a nut.
- the base 48 comprises a lower plate 60 and an upper plate 61 held together by means of screws 62.
- the lower plate 60 is placed under and in contact with the upper protrusion 47 of the secondary insulating block of end 34 while the upper plate 61 is placed on and in contact with the upper protrusion 47 so as to sandwich it.
- the primary insulating panel 18 has a recess made in the foam 17 and the cover panel 16 at the level of a lower corner 58 of said primary insulating panel 18 adjacent to the primary end insulating block 39.
- the lower corner 58 is provided with a cleat 59.
- the support element 50 of the anchoring device 45 also bears on a support surface formed on the cleat 59.
- the anchoring device 45 may be common to four elements of the primary thermally insulating barrier 12, namely two primary insulating end blocks 39 adjacent to each other as well as the two primary insulating panels 18 directly adjacent to the blocks end primary insulators 39.
- the base 48 is formed at the interface between two secondary insulating end blocks 34 so as to be fixed on the upper protrusion 47 of each of these two secondary insulating end blocks 34.
- the anchoring device 45 further comprises a sealing washer 51 which is engaged on the stud 49 and comprises a flange 54 fixed in leaktight manner to the secondary sealing membrane 11 around the orifice of the sealing membrane secondary 11 and a deformable seal 55 sealingly connecting the sealing washer to the stud so as to allow relative movement between the sealing washer 51 and the stud 49.
- the flange 54 is for example welded in a sealed manner to the secondary sealing membrane 11 around the orifice of said secondary sealing membrane 11.
- the stud 49 has an anchoring shoulder 56 projecting radially towards the outside of the pin 49.
- the deformable joint 55 is welded in a sealed manner, on the one hand, to the sealing washer 51 and, on the other hand, to the anchoring shoulder 56 of the pin 49, which ensures the tightness of the crossing of the stud 49 through the secondary sealing membrane 11.
- the deformable seal 55 is a bellows, for example made of stainless steel.
- the sealed connection between the secondary sealing membrane 11 and the stud 49 is flexible, which allows relative movements of the primary end insulating block 39 and of the adjacent primary insulating panel 18 with respect to the secondary sealing membrane 11 and thus makes it possible to limit the risks of degradation of the sealing of said secondary sealing membrane 11.
- the anchoring device 45 is also equipped with a bell 57 which has an orifice in which the stud 49 is threaded and which covers the said deformable joint 55.
- the bell 57 has a generally cylindrical shape.
- the anchoring device 45 here comprises a flange 54 forming an integral part of the stud 49, that is to say that the flange 54 is made in the mass at the same time as the rest of the stud 49 and thus form a single piece.
- the collar 54 thus projects radially outwards from the pin 49 and is welded in a sealed manner to the secondary sealing membrane 11 around the orifice of the secondary sealing membrane 11.
- the device anchor 45 has no deformable seal, bell or anchor shoulder.
- the primary sealing membrane 13 is connected in a sealed manner to the secondary connecting angle 36.
- This connection is made using a primary connection angle 63 comprising a first primary wing 64 and a second primary wing 65 connected to the first primary wing 64, the first primary wing 64 being connected to the primary sealing membrane 13 and the second primary wing 65 being welded to the second secondary wing 38.
- a cutaway view of an LNG carrier 70 shows a sealed and insulated tank 71 of generally prismatic shape mounted in the double hull 72 of the ship.
- the wall of the tank 71 comprises a primary leaktight barrier intended to be in contact with the LNG contained in the tank, a secondary leaktight barrier arranged between the primary leaktight barrier and the double hull 72 of the ship, and two insulating barriers arranged respectively between the primary waterproof barrier and the secondary waterproof barrier and between the secondary waterproof barrier and the double hull 72.
- loading/unloading pipes 73 arranged on the upper deck of the ship can be connected, by means of appropriate connectors, to a maritime or port terminal to transfer a cargo of LNG from or to the tank 71.
- the loading and unloading station 75 is a fixed offshore installation comprising a mobile arm 74 and a tower 78 which supports the mobile arm 74.
- the mobile arm 74 carries a bundle of insulated flexible pipes 79 which can be connected to the loading/unloading pipes 73.
- the orientable mobile arm 74 adapts to all sizes of LNG carriers.
- a connecting pipe, not shown, extends inside the tower 78.
- the loading and unloading station 75 allows the loading and unloading of the LNG carrier 70 from or to the shore installation 77.
- This comprises liquefied gas storage tanks 80 and connecting pipes 81 connected by the underwater pipe 76 to the loading or unloading station 75.
- the underwater pipe 76 allows the transfer of the liquefied gas between the loading or unloading station 75 and the shore installation 77 over a great distance, for example 5 km, which makes it possible to keep the LNG carrier 70 at a great distance from the coast during loading and unloading operations.
- pumps on board the ship 70 and/or pumps fitted to the shore installation 77 and/or pumps fitted to the loading and unloading station 75 are used.
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Abstract
Description
la cuve comprenant dans une direction d’épaisseur de l’extérieur vers l’intérieur de la cuve, une barrière thermiquement isolante secondaire fixée à la structure porteuse, une membrane d’étanchéité secondaire métallique disposée sur la barrière thermiquement isolante secondaire, une barrière thermiquement isolante primaire disposée sur la membrane d’étanchéité secondaire, et une membrane d’étanchéité primaire disposée sur la barrière thermiquement isolante primaire et destinée à être en contact avec le gaz liquéfié,
la structure porteuse comportant une paroi porteuse supérieure,
la cuve comportant une paroi de plafond fixée à la paroi porteuse supérieure,
la paroi de plafond étant interrompue localement de manière à délimiter une ouverture de chargement/déchargement destinée à être traversée par des conduites de chargement/déchargement,
dans laquelle la membrane d’étanchéité secondaire de la paroi de plafond comporte une pluralité de virures parallèles s’étendant dans une première direction, chaque virure comportant une portion centrale plane et deux bords relevés faisant saillie vers l’intérieur de la cuve par rapport à la portion centrale, les virures étant juxtaposées dans une deuxième direction selon un motif répété et soudées ensemble de manière étanche au niveau des bords relevés, la première direction étant perpendiculaire à la deuxième direction,
dans laquelle la barrière thermiquement isolante secondaire de la paroi de plafond comporte un bloc isolant secondaire d’extrémité adjacent à un bord de l’ouverture de chargement/déchargement, et un panneau isolant secondaire juxtaposé au bloc isolant secondaire d’extrémité dans la deuxième direction, ledit bord de l’ouverture de chargement/déchargement s’étendant dans la première direction,
dans laquelle la barrière thermiquement isolante primaire de la paroi de plafond comporte un bloc isolant primaire d’extrémité adjacent audit bord de l’ouverture de chargement/déchargement, et un panneau isolant primaire juxtaposé au bloc isolant primaire d’extrémité dans la deuxième direction,
dans laquelle le bloc isolant primaire d’extrémité s’étend au droit d’une première partie du bloc isolant secondaire d’extrémité et est fixé au bloc isolant secondaire d’extrémité, et le panneau isolant primaire s’étend au droit d’une deuxième partie du bloc isolant secondaire d’extrémité, la deuxième partie étant adjacente à la première partie dans la deuxième direction, le panneau isolant primaire étant fixé au bloc isolant secondaire d’extrémité.According to one embodiment, the invention provides a storage facility for liquefied gas comprising a metal support structure and a sealed and thermally insulating tank arranged in the support structure,
the tank comprising in a direction of thickness from the outside towards the inside of the tank, a secondary thermally insulating barrier fixed to the supporting structure, a secondary metal sealing membrane placed on the secondary thermally insulating barrier, a thermally primary insulating membrane placed on the secondary sealing membrane, and a primary sealing membrane placed on the primary thermally insulating barrier and intended to be in contact with the liquefied gas,
the load-bearing structure comprising an upper load-bearing wall,
the tank comprising a ceiling wall fixed to the upper load-bearing wall,
the ceiling wall being interrupted locally so as to delimit a loading/unloading opening intended to be crossed by loading/unloading pipes,
wherein the secondary sealing membrane of the ceiling wall comprises a plurality of parallel strakes extending in a first direction, each strake comprising a planar central portion and two raised edges projecting inwardly of the tank with respect to the central portion, the strakes being juxtaposed in a second direction according to a repeated pattern and welded together in a sealed manner at the raised edges, the first direction being perpendicular to the second direction,
wherein the secondary heat insulating barrier of the ceiling wall has a secondary end insulating block adjacent to an edge of the loading/unloading opening, and a secondary insulating panel juxtaposed to the secondary end insulating block in the second direction , said edge of the loading/unloading opening extending in the first direction,
wherein the primary thermally insulating barrier of the ceiling wall comprises a primary end insulating block adjacent to said edge of the loading/unloading opening, and a primary insulating panel juxtaposed with the primary end insulating block in the second direction,
in which the primary end insulating block extends in line with a first part of the secondary end insulating block and is fixed to the secondary end insulating block, and the primary insulating panel extends in line with a second part of the end secondary insulating block, the second part being adjacent to the first part in the second direction, the primary insulating panel being fixed to the end secondary insulating block.
Claims (20)
- Installation de stockage (1) pour gaz liquéfié comprenant une structure porteuse (2) métallique et une cuve (71) étanche et thermiquement isolante agencée dans la structure porteuse,
la cuve comprenant dans une direction d’épaisseur de l’extérieur vers l’intérieur de la cuve, une barrière thermiquement isolante secondaire (10) fixée à la structure porteuse (2), une membrane d’étanchéité secondaire (11) métallique disposée sur la barrière thermiquement isolante secondaire (10), une barrière thermiquement isolante primaire (12) disposée sur la membrane d’étanchéité secondaire (11), et une membrane d’étanchéité primaire (13) disposée sur la barrière thermiquement isolante primaire (12) et destinée à être en contact avec le gaz liquéfié,
la structure porteuse comportant une paroi porteuse supérieure (8),
la cuve (71) comportant une paroi de plafond (4) fixée à la paroi porteuse supérieure (8),
la paroi de plafond (4) étant interrompue localement de manière à délimiter une ouverture de chargement/déchargement (7) destinée à être traversée par des conduites de chargement/déchargement,
dans laquelle la membrane d’étanchéité secondaire (11) de la paroi de plafond (4) comporte une pluralité de virures parallèles s’étendant dans une première direction (L), chaque virure comportant une portion centrale plane et deux bords relevés faisant saillie vers l’intérieur de la cuve par rapport à la portion centrale, les virures étant juxtaposées dans une deuxième direction (T) selon un motif répété et soudées ensemble de manière étanche au niveau des bords relevés, la première direction étant perpendiculaire à la deuxième direction (T),
dans laquelle la barrière thermiquement isolante secondaire (10) de la paroi de plafond (4) comporte un bloc isolant secondaire d’extrémité (34) adjacent à un bord (25) de l’ouverture de chargement/déchargement (7), et un panneau isolant secondaire (14) juxtaposé au bloc isolant secondaire d’extrémité (34) dans la deuxième direction (T), ledit bord de l’ouverture de chargement/déchargement s’étendant dans la première direction (L),
dans laquelle la barrière thermiquement isolante primaire (12) de la paroi de plafond (4) comporte un bloc isolant primaire d’extrémité (39) adjacent audit bord de l’ouverture de chargement/déchargement (7), et un panneau isolant primaire (18) juxtaposé au bloc isolant primaire d’extrémité (39) dans la deuxième direction (T), dans laquelle le bloc isolant primaire d’extrémité (39) s’étend au droit d’une première partie du bloc isolant secondaire d’extrémité (34) et est fixé au bloc isolant secondaire d’extrémité (34), et le panneau isolant primaire (18) s’étend au droit d’une deuxième partie du bloc isolant secondaire d’extrémité (34), la deuxième partie étant adjacente à la première partie dans la deuxième direction (T), le panneau isolant primaire (18) étant fixé au bloc isolant secondaire d’extrémité (34).Storage installation (1) for liquefied gas comprising a metal support structure (2) and a sealed and thermally insulating tank (71) arranged in the support structure,
the tank comprising, in a direction of thickness from the outside towards the inside of the tank, a secondary thermally insulating barrier (10) fixed to the support structure (2), a secondary metal sealing membrane (11) arranged on the secondary thermally insulating barrier (10), a primary thermally insulating barrier (12) placed on the secondary sealing membrane (11), and a primary sealing membrane (13) placed on the primary thermally insulating barrier (12) and intended to be in contact with liquefied gas,
the load-bearing structure comprising an upper load-bearing wall (8),
the tank (71) comprising a ceiling wall (4) fixed to the upper load-bearing wall (8),
the ceiling wall (4) being interrupted locally so as to delimit a loading/unloading opening (7) intended to be crossed by loading/unloading pipes,
wherein the secondary sealing membrane (11) of the ceiling wall (4) comprises a plurality of parallel strakes extending in a first direction (L), each strake comprising a planar central portion and two raised edges projecting towards the inside of the tank with respect to the central portion, the strakes being juxtaposed in a second direction (T) according to a repeated pattern and welded together in a sealed manner at the level of the raised edges, the first direction being perpendicular to the second direction ( T),
wherein the secondary heat insulating barrier (10) of the ceiling wall (4) has a secondary end insulating block (34) adjacent to an edge (25) of the loading/unloading opening (7), and a secondary insulating panel (14) juxtaposed to the secondary end insulating block (34) in the second direction (T), said edge of the loading/unloading opening extending in the first direction (L),
wherein the primary thermally insulating barrier (12) of the ceiling wall (4) comprises a primary end insulating block (39) adjacent to said edge of the loading/unloading opening (7), and a primary insulating panel ( 18) juxtaposed with the primary end insulating block (39) in the second direction (T), in which the primary end insulating block (39) extends in line with a first part of the secondary end insulating block (34) and is fixed to the secondary end insulating block (34), and the primary insulating panel (18) extends in line with a second part of the secondary end insulating block (34), the second part being adjacent to the first part in the second direction (T), the primary insulating panel (18) being fixed to the secondary end insulating block (34). - Installation de stockage selon la revendication 1, dans laquelle le bloc isolant primaire d’extrémité (39) et le panneau isolant primaire (18) sont fixés au bloc isolant secondaire d’extrémité (34) à l’aide d’un dispositif d’ancrage (45) commun.Storage facility according to claim 1, wherein the primary end insulating block (39) and the primary insulating panel (18) are fixed to the secondary end insulating block (34) by means of a clamping device. common anchor (45).
- Installation de stockage selon la revendication 1 ou la revendication 2, dans laquelle une interface entre le bloc isolant secondaire d’extrémité (34) et le panneau isolant secondaire (14) est située à une plus grande distance du bord de l’ouverture de chargement/déchargement (7) dans la deuxième direction (T) qu’une interface entre le bloc isolant primaire d’extrémité (39) et le panneau isolant primaire (18).A storage facility according to claim 1 or claim 2, wherein an interface between the secondary end insulating block (34) and the secondary insulating panel (14) is located a greater distance from the edge of the loading opening / unloading (7) in the second direction (T) as an interface between the primary end insulating block (39) and the primary insulating panel (18).
- Installation de stockage selon l’une des revendications 1 à 3, dans laquelle le bloc isolant primaire d’extrémité (39) est réalisé sous la forme d’une boite comprenant une plaque de fond, une plaque de couvercle parallèle à la plaque de fond et des plaques d’entretoises porteuses maintenant la plaque de couvercle à distance de la plaque de fond, la boite étant remplie de garniture isolante.Storage installation according to one of Claims 1 to 3, in which the primary end insulating block (39) is made in the form of a box comprising a bottom plate, a cover plate parallel to the bottom plate and supporting spacer plates holding the cover plate away from the bottom plate, the box being filled with insulating gasket.
- Installation de stockage selon l’une des revendications 1 à 4, dans laquelle le panneau isolant primaire (18) comporte successivement selon la direction d’épaisseur au moins une couche de mousse isolante (17) et au moins une plaque rigide (15, 16).Storage installation according to one of Claims 1 to 4, in which the primary insulating panel (18) comprises successively, along the direction of thickness, at least one layer of insulating foam (17) and at least one rigid plate (15, 16 ).
- Installation de stockage selon l’une des revendications 1 à 5, dans laquelle le bloc isolant primaire d’extrémité (39) est de forme parallélépipédique et comporte deux faces latérales perpendiculaire à la première direction (L), au moins une des faces latérales étant fixée au bloc isolant secondaire d’extrémité (34).Storage installation according to one of Claims 1 to 5, in which the primary end insulating block (39) is of parallelepiped shape and comprises two lateral faces perpendicular to the first direction (L), at least one of the lateral faces being attached to the secondary end insulating block (34).
- Installation de stockage selon la revendication 2, dans laquelle le bloc isolant primaire d’extrémité (39) comporte une surface d’appui et dans laquelle le dispositif d’ancrage (45) comporte une base (48) fixée au bloc isolant secondaire d’extrémité (34), un goujon (49) fixé à ladite base et se développant selon la direction d’épaisseur et traversant de manière étanche un orifice de la membrane d’étanchéité secondaire (11), et un élément d’appui (50) monté sur le goujon et en appui sur la surface d’appui du bloc isolant primaire d’extrémité (39) de manière à le retenir au bloc isolant secondaire d’extrémité (34).Storage installation according to Claim 2, in which the primary insulating block at the end (39) comprises a bearing surface and in which the anchoring device (45) comprises a base (48) fixed to the secondary insulating block at end (34), a dowel (49) fixed to said base and developing along the direction of thickness and passing through in leaktight manner an orifice of the secondary sealing membrane (11), and a support element (50) mounted on the stud and resting on the bearing surface of the primary end insulating block (39) so as to retain it to the secondary end insulating block (34).
- Installation de stockage selon les revendications 6 et 7 prises en combinaison, dans laquelle au moins une des faces latérales du bloc isolant primaire d’extrémité (39) comporte une protubérance (44), la surface d’appui étant formé sur la protubérance.Storage installation according to Claims 6 and 7 taken in combination, in which at least one of the side faces of the primary end insulating block (39) comprises a protuberance (44), the bearing surface being formed on the protuberance.
- Installation de stockage selon la revendication 7 ou la revendication 8, dans laquelle le panneau isolant primaire (18) comporte une surface d’appui et dans laquelle l’élément d’appui (50) est en appui sur la surface d’appui du panneau isolant primaire de manière à retenir le panneau isolant primaire au bloc isolant secondaire d’extrémité (34).Storage installation according to Claim 7 or Claim 8, in which the primary insulating panel (18) comprises a bearing surface and in which the bearing element (50) bears on the bearing surface of the panel primary insulation so as to retain the primary insulation panel to the end secondary insulation block (34).
- Installation de stockage selon la revendication 9, dans laquelle la surface d’appui du panneau isolant primaire (18) est situé au niveau d’un coin (58) du panneau isolant primaire (18).A storage facility according to claim 9, wherein the bearing surface of the primary insulation board (18) is located at a corner (58) of the primary insulation board (18).
- Installation de stockage selon l’une des revendications 7 à 10, dans laquelle le dispositif d’ancrage comporte en outre une collerette (54) faisant partie intégrante du goujon (49), la collerette faisant saillie radialement vers l’extérieur du goujon et étant fixée de manière étanche à la membrane d’étanchéité secondaire (11) autour de l’orifice de la membrane d’étanchéité secondaire (11). Storage installation according to one of Claims 7 to 10, in which the anchoring device further comprises a flange (54) forming an integral part of the stud (49), the flange projecting radially towards the outside of the stud and being sealed to the secondary sealing membrane (11) around the opening of the secondary sealing membrane (11).
- Installation de stockage selon l’une des revendications 7 à 10, dans laquelle le bloc isolant secondaire d’extrémité (39) est de forme parallélépipédique et comporte deux faces latérales perpendiculaire à la première direction (L), au moins une des faces latérales étant fixée à la structure porteuse à l’aide d’un dispositif de fixation (41), la base (48) du dispositif d’ancrage (45) étant fixée à ladite face latérale de sorte que le dispositif d’ancrage (45) est situé au droit du dispositif de fixation (41) dans la direction d’épaisseur.Storage installation according to one of Claims 7 to 10, in which the secondary insulating end block (39) is of parallelepipedal shape and comprises two lateral faces perpendicular to the first direction (L), at least one of the lateral faces being secured to the supporting structure by means of a fixing device (41), the base (48) of the anchoring device (45) being fixed to said side face so that the anchoring device (45) is located to the right of the fixing device (41) in the direction of thickness.
- Installation de stockage selon la revendication 12, dans laquelle ladite face latérale comporte une protubérance inférieure (46) comprenant une surface d’appui et une protubérance supérieure (47), le dispositif de fixation (41) comportant au moins une tige filetée (42) se développant selon la direction d’épaisseur et fixée à la paroi porteuse supérieure (8), et une plaque de maintien (43) monté sur la tige filetée (42) et en appui sur la surface d’appui de la protubérance inférieure (46), la base du dispositif d’ancrage (45) comportant une plaque inférieure (60) et une plaque supérieure (61) venant prendre en sandwich la protubérance supérieure (47).Storage installation according to Claim 12, in which the said lateral face comprises a lower protrusion (46) comprising a bearing surface and an upper protrusion (47), the fixing device (41) comprising at least one threaded rod (42) developing along the direction of thickness and fixed to the upper load-bearing wall (8), and a retaining plate (43) mounted on the threaded rod (42) and resting on the bearing surface of the lower protrusion (46 ), the base of the anchor device (45) comprising a lower plate (60) and an upper plate (61) sandwiching the upper protuberance (47).
- Installation de stockage selon l’une des revendications 1 à 13, dans laquelle la barrière thermiquement isolante secondaire (12) de la paroi de plafond (4) comporte une rangée de blocs isolants primaires d’extrémité (39) adjacente au bord (25) de l’ouverture de chargement/déchargement (7), les blocs isolants primaires d’extrémité (34) étant juxtaposés les uns aux autres dans la première direction (L), et comporte une rangée de panneaux isolants primaires (18) juxtaposés les uns aux autres dans la première direction (L).Storage installation according to one of Claims 1 to 13, in which the secondary thermally insulating barrier (12) of the ceiling wall (4) comprises a row of primary insulating end blocks (39) adjacent to the edge (25) of the loading/unloading opening (7), the primary insulating end blocks (34) being juxtaposed to each other in the first direction (L), and comprises a row of primary insulating panels (18) juxtaposed to each other to others in the first direction (L).
- Installation de stockage selon la revendication 14, dans laquelle la rangée de blocs isolants primaires d’extrémité (39) comporte un premier bloc isolant primaire d’extrémité (39) et un deuxième bloc isolant primaire d’extrémité (39) adjacent au premier bloc isolant primaire d’extrémité (39) et la rangée de panneaux isolants primaires (18) comporte un premier panneau isolant primaire (18) adjacent au premier bloc isolant primaire d’extrémité (39), et un deuxième panneau isolant primaire (18) adjacent au deuxième bloc isolant primaire d’extrémité (39), les premier et deuxième blocs isolants primaires d’extrémité (39) et les premier et deuxième panneaux isolants primaires (18) étant fixés au bloc isolant secondaire d’extrémité (34) à l’aide d’un dispositif d’ancrage (45) commun.A storage facility according to claim 14, wherein the row of end primary insulating blocks (39) includes a first end primary insulating block (39) and a second end primary insulating block (39) adjacent to the first primary end insulation (39) and the row of primary insulation panels (18) includes a first primary insulation panel (18) adjacent to the first primary end insulation block (39), and a second primary insulation panel (18) adjacent to the second primary end insulation block (39), the first and second primary end insulation blocks (39) and the first and second primary insulation panels (18) being attached to the secondary end insulation block (34) at the using a common anchor (45).
- Installation de stockage selon l’une des revendications 7 à 13 et 15, dans laquelle la barrière thermiquement isolante secondaires (10) de la paroi de plafond (4) comporte une rangée de blocs isolants secondaires d’extrémité (34) adjacente au bord de l’ouverture de chargement/déchargement (7), les blocs isolants secondaires d’extrémité (34) étant juxtaposés les uns aux autres dans la première direction (L), la base du dispositif d’ancrage étant fixée à deux blocs isolants secondaires d’extrémité (34) adjacents au niveau d’une interface formée entre les blocs isolants secondaires d’extrémité (39).Storage installation according to one of Claims 7 to 13 and 15, in which the secondary thermally insulating barrier (10) of the ceiling wall (4) comprises a row of secondary end insulating blocks (34) adjacent to the edge of the loading/unloading opening (7), the end secondary insulating blocks (34) being juxtaposed to each other in the first direction (L), the base of the anchoring device being fixed to two secondary insulating blocks d end (34) adjacent to an interface formed between the end secondary insulating blocks (39).
- Installation de stockage selon l’une des revendications 1 à 16, dans laquelle le bloc isolant primaire d’extrémité (39) présente une rigidité plus élevée que le panneau isolant primaire (18) dans la direction d’épaisseur.Storage facility according to one of Claims 1 to 16, in which the primary end insulating block (39) has a higher stiffness than the primary insulating panel (18) in the thickness direction.
- Installation de stockage (1) selon l’une des revendications 1 à 16 réalisée sous la forme d’un ouvrage flottant, dans laquelle ladite structure porteuse est constituée par une double coque (72) de l’ouvrage flottant et dans laquelle la première direction (L) est une direction longitudinale (L) de l’ouvrage flottant, l’ouvrage flottant étant de préférence un navire (70) pour le transport d’un produit liquide froid.Storage installation (1) according to one of Claims 1 to 16, made in the form of a floating structure, in which the said supporting structure consists of a double hull (72) of the floating structure and in which the first direction (L) is a longitudinal direction (L) of the floating structure, the floating structure preferably being a vessel (70) for transporting a cold liquid product.
- Système de transfert pour un produit liquide froid, le système comportant une installation de stockage selon la revendication 18, des canalisations isolées (73, 79, 76, 81) agencées de manière à relier la cuve (71) installée dans la coque de l’ouvrage flottant à une installation externe de stockage flottante ou terrestre (77) et une pompe pour entrainer un flux de produit liquide froid à travers les canalisations isolées depuis ou vers l’installation externe de stockage flottante ou terrestre vers ou depuis la cuve de l’ouvrage flottant.Transfer system for a cold liquid product, the system comprising a storage installation according to claim 18, insulated pipes (73, 79, 76, 81) arranged so as to connect the tank (71) installed in the hull of the floating structure to an external floating or onshore storage facility (77) and a pump for driving a flow of cold liquid product through the insulated pipes from or to the external floating or onshore storage facility to or from the tank of the floating structure.
- Procédé de chargement ou déchargement d’une installation de stockage selon la revendication 18, dans lequel on achemine un produit liquide froid à travers des canalisations isolées (73, 79, 76, 81) depuis ou vers une installation externe de stockage flottante ou terrestre (77) vers ou depuis la cuve (71) de l’ouvrage flottant.Method of loading or unloading a storage installation according to claim 18, in which a cold liquid product is conveyed through insulated pipes (73, 79, 76, 81) from or to an external floating or terrestrial storage installation ( 77) to or from the tank (71) of the floating structure.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020247008313A KR20240052773A (en) | 2021-08-24 | 2022-07-27 | Storage facilities for liquefied gas |
CN202280057689.4A CN117881919A (en) | 2021-08-24 | 2022-07-27 | Storage facility for liquefied gas |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FRFR2108861 | 2021-08-24 | ||
FR2108861A FR3126395B1 (en) | 2021-08-24 | 2021-08-24 | Storage facility for liquefied gas |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2023025501A1 true WO2023025501A1 (en) | 2023-03-02 |
Family
ID=78649393
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2022/071131 WO2023025501A1 (en) | 2021-08-24 | 2022-07-27 | Storage facility for liquefied gas |
Country Status (5)
Country | Link |
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KR (1) | KR20240052773A (en) |
CN (1) | CN117881919A (en) |
FR (1) | FR3126395B1 (en) |
TW (1) | TW202311660A (en) |
WO (1) | WO2023025501A1 (en) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2019234360A2 (en) | 2018-06-06 | 2019-12-12 | Gaztransport Et Technigaz | Thermally-insulating sealed tank |
KR20200144178A (en) | 2019-06-17 | 2020-12-29 | 대우조선해양 주식회사 | Insulation System of Liquefied Natural Gas Storage Tank |
KR20200144697A (en) * | 2019-06-19 | 2020-12-30 | 대우조선해양 주식회사 | Insulation System of Liquefied Natural Gas Storage Tank |
KR20210101859A (en) * | 2020-02-11 | 2021-08-19 | 대우조선해양 주식회사 | Insulation System of Liquefied Gas Storage Tank |
-
2021
- 2021-08-24 FR FR2108861A patent/FR3126395B1/en active Active
-
2022
- 2022-07-27 WO PCT/EP2022/071131 patent/WO2023025501A1/en active Application Filing
- 2022-07-27 CN CN202280057689.4A patent/CN117881919A/en active Pending
- 2022-07-27 KR KR1020247008313A patent/KR20240052773A/en unknown
- 2022-08-19 TW TW111131252A patent/TW202311660A/en unknown
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2019234360A2 (en) | 2018-06-06 | 2019-12-12 | Gaztransport Et Technigaz | Thermally-insulating sealed tank |
KR20200144178A (en) | 2019-06-17 | 2020-12-29 | 대우조선해양 주식회사 | Insulation System of Liquefied Natural Gas Storage Tank |
KR20200144697A (en) * | 2019-06-19 | 2020-12-30 | 대우조선해양 주식회사 | Insulation System of Liquefied Natural Gas Storage Tank |
KR20210101859A (en) * | 2020-02-11 | 2021-08-19 | 대우조선해양 주식회사 | Insulation System of Liquefied Gas Storage Tank |
Also Published As
Publication number | Publication date |
---|---|
FR3126395B1 (en) | 2024-05-10 |
CN117881919A (en) | 2024-04-12 |
TW202311660A (en) | 2023-03-16 |
KR20240052773A (en) | 2024-04-23 |
FR3126395A1 (en) | 2023-03-03 |
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