WO2021245091A1 - Cuve étanche et thermiquement isolante intégrée dans une structure porteuse - Google Patents

Cuve étanche et thermiquement isolante intégrée dans une structure porteuse Download PDF

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Publication number
WO2021245091A1
WO2021245091A1 PCT/EP2021/064691 EP2021064691W WO2021245091A1 WO 2021245091 A1 WO2021245091 A1 WO 2021245091A1 EP 2021064691 W EP2021064691 W EP 2021064691W WO 2021245091 A1 WO2021245091 A1 WO 2021245091A1
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WO
WIPO (PCT)
Prior art keywords
row
strakes
vessel
edges
tank
Prior art date
Application number
PCT/EP2021/064691
Other languages
English (en)
French (fr)
Inventor
Johan Bougault
Original Assignee
Gaztransport Et Technigaz
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Gaztransport Et Technigaz filed Critical Gaztransport Et Technigaz
Priority to CN202180039787.0A priority Critical patent/CN115715358A/zh
Priority to KR1020227046434A priority patent/KR20230019471A/ko
Priority to JP2022574405A priority patent/JP2023527911A/ja
Publication of WO2021245091A1 publication Critical patent/WO2021245091A1/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 
    • 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
    • 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
    • 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 
    • B63B27/00—Arrangement of ship-based loading or unloading equipment for cargo or passengers
    • B63B27/30—Arrangement of ship-based loading or unloading equipment for transfer at sea between ships or between ships and off-shore structures
    • B63B27/34—Arrangement of ship-based loading or unloading equipment for transfer at sea between ships or between ships and off-shore structures using 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
    • B63B73/20—Building or assembling prefabricated vessel modules or parts other than hull blocks, e.g. engine rooms, rudders, propellers, superstructures, berths, holds or tanks
    • 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
    • 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
    • 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
    • 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 sealed and thermally insulating tanks integrated into a supporting structure for containing a cold fluid, in particular membrane tanks for containing liquefied gases, in particular combustible gases.
  • Sealed and thermally insulating tanks can be used in different industries to store cold products.
  • liquefied natural gas is a liquid with a high methane content that can be stored at atmospheric pressure at around -163 ° C in terrestrial storage tanks or in on-board tanks. in floating structures.
  • Liquefied Petroleum Gas can be stored at a temperature between -50 ° C and 0 ° C.
  • the tank may be intended for the transport of liquefied gas or to receive liquefied gas serving as fuel for the propulsion of the floating structure.
  • a thermally insulating barrier comprises a set of heat-insulating elements of generally parallelepiped shape juxtaposed on the supporting structure to form a substantially uniform support surface for the waterproof membrane, and retaining members attached to the supporting structure between the juxtaposed heat-insulating elements and cooperating with the heat-insulating elements to retain the heat-insulating elements against the supporting structure.
  • Each heat-insulating element is retained by four mechanical couplers arranged at the corners of the heat-insulating elements.
  • An object of the invention is to design a tank wall structure, and in particular an insulating barrier structure, offering advantageous properties in terms of thermal insulation, mechanical strength and the support of a tight tight membrane.
  • the invention provides a sealed and thermally insulating tank integrated into a supporting structure, said tank comprising a tank wall fixed to a supporting wall of the supporting structure, in which the tank wall comprises a thermally insulating barrier fixed to the load-bearing wall and a waterproof membrane carried by said thermally insulating barrier, wherein the thermally insulating barrier comprises a plurality of rows parallel to a first direction, a row comprising a plurality of juxtaposed parallelepipedal insulating panels, the rows being juxtaposed in a second direction perpendicular to the first direction in a repeated pattern, in which the waterproof membrane comprises a plurality of metal strakes parallel to the first direction, a strakes comprising a flat central portion resting on an upper surface of the insulating panels and two raised edges projecting inwardly of the tank with respect to the portion central, the strakes being juxtaposed in the second direction in a repeated pattern and welded together in a sealed manner at the level of the raised edges, wherein the size of the thermally
  • Retaining members are thus arranged to the right of each of the strakes which rest on the row, namely the first retaining members to the right of the two strakes arranged straddling the row and the two adjacent rows and the second retaining members to the right of each strake which rests entirely on the row.
  • This arrangement of the retaining members makes it possible to standardize the distribution of the forces exerted on the insulating panels and to limit the defects in the flatness of the support surface that they form for the waterproof membrane. These flatness defects can have various causes, in particular the deformation of the hull under ballast loading.
  • differential thermal expansion or differential thermal contraction is liable to create slight deformations of the insulation panels in bending, as described in WO-A-2014096600, when the vessel wall is subjected to a temperature gradient in the direction of thickness.
  • the second retaining members By arranging at least the second retaining members at a distance from the corners, rather than at the corners of the insulation panel, the length available to undergo bending is limited, which limits the deflection, that is to say the displacement which results. of this bending in the thickness direction of the vessel wall.
  • This distribution of the retaining members thus makes it possible to reduce the deformation of the insulating panels and the vertical steps between adjacent insulating panels.
  • This arrangement of the retaining members can be applied to a row or to each row or to a subset of the rows, for example to every other row within the thermally insulating barrier.
  • such a tank may include one or more of the following arrangements.
  • the first retainers are disposed at a distance from the corners of the insulating panels in the row.
  • the length available to undergo bending is limited, which limits the deflection, that is to say the displacement which results from this bending in the thickness direction of the vessel wall.
  • the raised edges of said strakes are offset in the second direction by a distance equal to half the dimension of the repeated pattern of strakes relative to the edges of the row, the second retaining members being distant from the corners. insulating panels of a distance equal to the dimension of the repeated pattern of strakes or to a whole multiple of this dimension.
  • the retaining members arranged at the level of the second edges of the insulating panels are in line with a median line of the strakes resting entirely on the row, which standardizes the distribution of the forces exerted on the insulating panels.
  • the dimension of the repeated pattern of the rows is twice the dimension of the repeated pattern of the strakes in the second direction, the second retaining members being arranged in the middle of the second edges.
  • the size of the repeating pattern of the rows is greater than twice the size of the repeating pattern of the strakes in the second direction, and several second retainers mutually spaced a distance equal to the size of the repeating pattern.
  • strakes are arranged along a second edge.
  • the parallelepipedal insulating panels of the row are juxtaposed in a repeated pattern in the first direction, the dimension of the repeated pattern in the first direction is twice the dimension of the repeated pattern of the strakes in the second direction, and first retainers are arranged in the middle of the first edges.
  • the parallelepipedal insulating panels of the row are juxtaposed in a repeated pattern in the first direction, the dimension of the repeated pattern in the first direction is an integer multiple greater than two of the dimension of the repeated pattern of the strakes in the first direction.
  • the second direction and a plurality of first retainers spaced apart by a distance equal to the size of the repeated pattern of strakes are arranged along a first edge.
  • the retaining members can be distributed in the form of a regular network on the load-bearing wall, for example in the form of a network of the cubic family with a centered face, which facilitates construction and standardizes the distribution of the forces exerted on the insulating panels and on the waterproof membrane that they support.
  • Parallelepipedal insulating panels can have various structures.
  • the parallelepipedal insulating panels have a square shape.
  • an insulating panel comprises a base plate resting against the load-bearing wall, for example by means of cords of polymerizable mastic, a cover plate parallel to the base plate and a layer of insulating polymer foam taken. sandwiched between the bottom plate and the cover plate.
  • an intermediate plate parallel to the bottom plate is interposed in the thickness of the layer of insulating polymer foam and divides it into two layers.
  • Such a structure is advantageous in that it makes it possible to limit the bending forces generated by the differential contraction of the materials of the insulating panel.
  • a non-adhesive sheet is inserted between the load-bearing wall and the beads of polymerizable mastic to prevent the beads of polymerizable mastic from adhering to the load-bearing wall.
  • this non-adhesive sheet is omitted so that the parallelepipedal insulating panels are glued to the bearing wall by means of cords of polymerizable mastic.
  • the second retaining member comprises an axis rod fixed perpendicularly to the supporting wall in a gap between two parallelepipedal insulating panels of the row and an elongated attachment piece having a central part mounted to pivot on the rod.
  • the attachment piece being pivotable between a release position in which the attachment piece is oriented parallel to the second direction and a retaining position in which the attachment piece is oriented parallel or obliquely to the first direction, said two parallelepipedal insulating panels having lateral housings for receiving the end portions of the attachment piece in the retaining position, so that the attachment in the retaining position stops the two parallelepiped insulating panels ic in the direction of the thickness of the vessel wall.
  • the first retaining member comprises an axis rod fixed perpendicularly to the load-bearing wall in a gap between two rows and an elongated attachment piece having a central part mounted to pivot on the axis rod and two end portions extending transversely to the axle rod on either side thereof, the attachment piece being pivotable between a release position in which the attachment piece is oriented parallel to the first direction and a retaining position in which the attachment piece is oriented parallel or obliquely to the second direction, two parallelepipedal insulating panels located on either side of the gap having lateral housings to receive the end parts of the the attachment piece in the retaining position, so that the attachment in the retaining position stops the two parallelepipedal insulation panels in s the direction of thickness of the vessel wall.
  • the end portions of the attachment piece in the retaining position cooperate with an upper surface of a bottom plate of the parallelepipedal insulation panels.
  • the axle rod also carries a nut screwed onto an end portion of the axle rod opposite the bearing wall and elastic washers arranged between the nut and the central part of the part. attachment.
  • anchoring wings anchored to the insulating panels and parallel to the first direction are arranged between the juxtaposed strakes to retain the waterproof membrane on the insulating barrier.
  • the thermally insulating barrier is a secondary insulating barrier and the waterproof membrane is a secondary waterproof membrane
  • the vessel wall further comprising a primary waterproof membrane intended to be in contact with a product contained in the vessel and a primary insulating barrier arranged between the primary waterproof membrane and the secondary waterproof membrane.
  • the first and second retaining members are first and second secondary retaining members
  • the tank further comprising primary retaining members placed on the insulating panels of said row at locations located on at least the one of a first line parallel to the first direction and located in line with at least one said second secondary retaining member and a second line parallel to the second direction and located in line with at least one said first secondary retaining member.
  • the primary retainers are preferably placed at the intersections of the first and second lines.
  • Such a tank can be part of an onshore storage installation, a storage installation placed on a seabed, for example to store LNG or be installed in a floating, coastal or deep-water structure, in particular an LNG vessel, a floating storage and regasification unit (FSRU), a floating production and remote storage unit (FPSO) and others.
  • FSRU floating storage and regasification unit
  • FPSO floating production and remote storage unit
  • a ship for transporting a cold liquid product comprises a double hull and a above-mentioned tank integrated into the double hull.
  • the double shell comprises an internal shell forming the supporting structure of the tank.
  • the invention also provides a method of loading or unloading such a ship, in which a cold liquid product is conveyed through insulated pipes from or to a floating or terrestrial storage installation to or from the vessel tank.
  • the invention also provides a transfer system for a cold liquid product, the system comprising the aforementioned vessel, insulated pipes arranged so as to connect the tank installed in the hull of the vessel to a floating storage installation. or terrestrial and a pump for driving a flow of cold liquid product through the insulated pipes from or towards the floating or terrestrial storage installation towards or from the vessel of the vessel.
  • The is an enlarged perspective view of a mechanical coupler of the vessel wall of the in a restrained position.
  • a structure can be implemented over large surfaces having various orientations, for example to cover the bottom, ceiling and side walls of a polyhedral tank. The orientation of the is therefore not limiting in this regard.
  • the vessel wall 1 is attached to a supporting wall 2.
  • a position located closer to the interior of the tank will be called “above” and a position located closer to the supporting wall 2 “below”. regardless of the orientation of the tank wall with respect to the earth's gravity field.
  • the vessel wall comprises at least one insulating barrier and a waterproof membrane 10 (which is shown partially transparent on the as a didactic measure) retained on top of the insulating barrier.
  • the insulating barrier consists of a plurality of parallelepipedal insulating panels 3 which are arranged side by side, in the form of several rows A, B parallel to each other, so as to substantially cover the internal surface of the supporting wall 2.
  • the beads of mastic 29 (shown in the ) are installed between the load-bearing wall 2 and the lower surface of the insulating panels 3.
  • These cords of mastic 29 are for example glued to the lower surface of the insulating panel 3.
  • the cords of mastic can be corrugated cords. as described in FR-A-2931535. Wedges, not shown, can also be provided on the supporting wall 2 to support the corners of the insulating panels 3.
  • the insulating panel 3 comprises for example a block of foam 42 made of high density polymer, in particular polyurethane with or without glass fibers, sandwiched between two flat plates, for example made of plywood, namely base plate 41 and base plate. cover 44.
  • the foam block has a density of the order of 130 kg / m 3 .
  • Other structures are also possible.
  • Rows A and B of the insulation panels 3 extend in a first direction and are separated by a gap 4 which also extends in the first direction. Within row B, the insulating panels 3 are separated in a substantially regular manner by interstices 5 which extend in a second direction.
  • the insulating panels 3 have two edges parallel to the first direction and along which the first retaining members 21 are arranged.
  • the insulating panels 3 have two edges parallel to the second direction and along which the second retaining members 22 are arranged.
  • the beads of mastic 29 do not adhere to the supporting wall 2.
  • a film not shown, for example made of kraft paper or plastic, is interposed between the beads of mastic 29 and the supporting wall 2.
  • the retaining members 21 and 22 are here arranged four in number per insulating panel 3 and serve to retain the insulating panels 3 to the supporting wall 2. They can be produced in different ways.
  • the cords of mastic 29 also adhere to the bearing wall 2 to retain the insulating panels 3 by gluing.
  • the retaining members 21 and 22 serve to retain the insulating panels 3 to the supporting wall 2 in a redundant manner with the aforementioned bonding, but above all during the period of polymerization of the mastic during the manufacture of the tank.
  • the waterproof membrane 10 comprises a continuous ply of strakes 11, 12, metallic, with raised edges, the length of which corresponds to the first direction and the width of which corresponds to the second direction.
  • the strakes 11, 12 are welded by their raised edges on welding supports not shown which are fixed in the grooves 13 formed on the cover plates 44 of the insulating panels 3.
  • the strakes 21 are, for example, made of Invar ®: that is to say an alloy of iron and nickel, the coefficient of expansion of which is typically between 1.2.10 -6 and 2.10 -6 K -1 . It is also possible to use alloys of iron and manganese, the coefficient of expansion of which is typically of the order of 7 to 9.10 -6 K -1 .
  • the insulating barrier can be built on surfaces of any size by periodically repeating the rows of insulating panels A, B and the metal strakes 11 and 12 in the second direction.
  • the rows of insulation boards A, B and the metal strakes 11 and 12 can extend to any length, as needed.
  • the dimension of the periodic pattern of rows A, B is equal to twice the width of a strake 11, 12 and the longitudinal edges of the strakes 11, 12 are offset by half the width in the second direction with respect to edges of rows A, B, it follows that a row A is covered by a strake 11 which rests entirely on it and two strakes 12 which rest astride row A and the two adjacent rows. Only the adjacent row B is shown here.
  • the offset of the strakes 11, 12 could be different from a half-width, but this offset cannot be zero in order to be able to produce the grooves 13.
  • the advantage is obtained that a substantially equal number of retaining members is located in line with each of the strakes. 11 and 12.
  • the anchoring by the retaining members 21 and 22 arranged in the middle of the edges of the insulating panel 3 has the advantage of limiting the length of the panel liable to flex. under the effect of ballast loading and / or thermal gradient.
  • This length is here limited to the distance between a retaining member 21 or 22 and a wedge, ie the half-length of the side.
  • the distance between two retainers is the entire length of the side if the retainers are arranged at the corners of the insulating panel 3.
  • the dimension of the insulating panel 3 in the second direction is larger, for example increased by a strake width, there will be a second strake 11 resting entirely on the row.
  • several retaining members 22 can be provided that are mutually spaced along the edge of the insulating panel 3, in order to always position a retaining member 22 in line with each of the strakes 11 resting entirely on the row.
  • This mechanical coupler comprises a threaded rod 31 which extends perpendicularly to the bearing wall 2 and the lower end of which is housed in a sleeve 30, optionally forming a ball, itself welded to the bearing wall 2.
  • the threaded rod 31 could also be directly welded to the load-bearing wall 2.
  • the retaining part 32 On the rod 31 are successively engaged a retaining part 32, pivoting, elastic washers 34 and a nut 33, produced in the form of a split nut to prevent its loosening by vibrations.
  • the retaining part 32 On the , the retaining part 32 is oriented parallel to the gap 4 or 5 in which the coupler is arranged, and it therefore does not cooperate with the insulating panels 3.
  • the retainer 32 In the retaining position illustrated on the figure , the retainer 32 has been rotated approximately 90 ° around the rod 31, which constitutes an axis engaged through the central portion 36, so that the end tab 35 of the retainer 32 has entered into a housing 43 of the insulating panel 3 to stop the latter in the thickness direction. If the retainer 32 is symmetrical as shown, the second end tab 35 of the retainer 32 can achieve the same effect for a second insulating panel 3 (not shown) located on the other side of the gap.
  • the housing 43 is a groove machined in the foam block 42 and which uncovers an upper surface of the bottom panel 41.
  • the end tab 35 has a flat shape parallel with the bottom panel 41 and can engage with it. this on a sufficient surface to avoid degrading it by punching.
  • the housings for receiving the end tabs 35 of the retaining part 32 are made in the form of wells 143 passing through the entire thickness of the foam block 42 and of the cover plate 44.
  • the locking of the insulating panel 3 is carried out here, not by pivoting of the retaining part 32, but by bringing the latter from above onto the rod 31.
  • the well 143 then makes it possible to bring and tighten the nut 33 on the rod 31.
  • The also shows a series of beads of mastic 29 arranged on the supporting wall 2 at the location of an insulating panel 3.
  • This representation is didactic and does not necessarily correspond to the way in which the beads of mastic 29 are mounted in the tank.
  • the technique described above for producing a tank wall having a single waterproof membrane can also be used in different types of tanks, for example to constitute a double membrane tank for liquefied natural gas (LNG) in an onshore installation or in a tank. floating structure such as an LNG carrier or other.
  • LNG liquefied natural gas
  • the waterproof membrane 10 illustrated in the preceding figures is a secondary waterproof membrane, and that a primary insulating barrier as well as a primary waterproof membrane, not shown, must still be added to this secondary waterproof membrane. .
  • this technique can also be applied to tanks having a plurality of thermally insulating barrier and superimposed waterproof membranes.
  • the and the also show primary retainers 46 which may optionally be provided on the cover panels 44 to be able to secure the primary insulating barrier. More precisely, the shows a first line I parallel to the first direction and located to the right of the retaining members 22 and a second line II parallel to the second direction and located to the right of the retaining members 21. As illustrated, the primary retaining members 46 are located preferably on the cover panels 44 at the intersection of lines I and II. It will be understood that a series of parallel lines I can be drawn in the same way on several successive rows. It will be understood that a series of parallel lines II can be traced in the same way on several successive insulating panels in a row.
  • the primary retaining members can be positioned at another location on the insulating panels 3, for example on lines I or on lines II.
  • a third embodiment of the flat vessel wall, more particularly suitable for a double membrane vessel, will now be described with reference to .
  • a primary insulating barrier 53 made up of primary insulating panels 54 has been added on the secondary membrane formed of strakes 11, 12 and solder supports 55.
  • a primary waterproof membrane 51 has been added on the primary insulating barrier 53.
  • Other details of the primary insulating barrier 53 and / or of the primary waterproof membrane 51 can be found, for example, in publication WO-A-2019234360.
  • 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 vessel 71 comprises a primary sealed barrier intended to be in contact with the liquefied gas contained in the vessel, a secondary sealed barrier arranged between the primary sealed barrier and the double hull 72 of the vessel, and two insulating barriers arranged respectively between the primary watertight barrier and the secondary watertight barrier and between the secondary watertight barrier and the double hull 72.
  • the ship has a single hull.
  • loading / unloading pipes 73 arranged on the upper deck of the ship can be connected, by means of suitable connectors, to a maritime or port terminal for transferring a cargo of liquefied gas from or to the tank 71.
  • the shows an example of a maritime terminal comprising a loading and unloading station 75, an underwater pipe 76 and an onshore installation 77.
  • the loading and unloading station 75 is a fixed off-shore installation comprising a movable arm 74 and a tower 78 which supports the movable arm 74.
  • the movable arm 74 carries a bundle of insulated flexible pipes 79 which can be connected to the loading / unloading pipes 73.
  • the movable arm 74 can be swiveled and 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 onshore installation 77.
  • the latter 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 installation on land 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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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Ocean & Marine Engineering (AREA)
  • Architecture (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
PCT/EP2021/064691 2020-06-03 2021-06-01 Cuve étanche et thermiquement isolante intégrée dans une structure porteuse WO2021245091A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CN202180039787.0A CN115715358A (zh) 2020-06-03 2021-06-01 构建到载荷支承结构中的热隔绝且密封的罐
KR1020227046434A KR20230019471A (ko) 2020-06-03 2021-06-01 내하중 구조물로 내장된 열적 절연 밀봉된 탱크
JP2022574405A JP2023527911A (ja) 2020-06-03 2021-06-01 耐荷重構造に組み込まれた密閉断熱タンク

Applications Claiming Priority (2)

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FR2005791A FR3111178B1 (fr) 2020-06-03 2020-06-03 Cuve étanche et thermiquement isolante intégrée dans une structure porteuse
FRFR2005791 2020-06-03

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Families Citing this family (1)

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Publication number Priority date Publication date Assignee Title
CN117662969B (zh) * 2024-01-31 2024-04-02 中太(苏州)氢能源科技有限公司 一种保护系统及其安装方法和储罐

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2413260A1 (fr) * 1977-12-29 1979-07-27 Gaz Transport Cuve etanche et thermiquement isolante integree a la structure porteuse d'un navire
WO2008147003A1 (en) * 2007-05-29 2008-12-04 Hyundai Heavy Industries Co., Ltd. Lng storage tank insulation system having welded secondary barrier and construction method thereof
FR2931535A1 (fr) 2008-05-21 2009-11-27 Gaztransp Et Technigaz Fixation par collage de blocs isolants pour cuve de stockage de gaz liquefies a l'aide de cordons ondules
KR100970960B1 (ko) * 2008-01-22 2010-07-20 삼성중공업 주식회사 인슐레이션 패널의 선체 고정구조
KR20110058206A (ko) * 2009-11-26 2011-06-01 대우조선해양 주식회사 액화가스 저장탱크의 단열패널 결합구조
WO2014096600A1 (fr) 2012-12-21 2014-06-26 Gaztransport Et Technigaz Cuve etanche et thermiquement isolante
WO2016046487A1 (fr) * 2014-09-26 2016-03-31 Gaztransport Et Technigaz Cuve étanche et isolante comportant un élément de pontage entre les panneaux de la barrière isolante secondaire
FR3042253A1 (fr) * 2015-10-13 2017-04-14 Gaztransport Et Technigaz Cuve etanche et thermiquement isolante
WO2019086813A1 (fr) * 2017-11-06 2019-05-09 Gaztransport Et Technigaz Cuve etanche et thermiquement isolante comportant des dispositifs d'ancrage des panneaux isolants primaires sur des panneaux isolants secondaires
WO2019234360A2 (fr) 2018-06-06 2019-12-12 Gaztransport Et Technigaz Cuve etanche et thermiquement isolante

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2413260A1 (fr) * 1977-12-29 1979-07-27 Gaz Transport Cuve etanche et thermiquement isolante integree a la structure porteuse d'un navire
WO2008147003A1 (en) * 2007-05-29 2008-12-04 Hyundai Heavy Industries Co., Ltd. Lng storage tank insulation system having welded secondary barrier and construction method thereof
KR100970960B1 (ko) * 2008-01-22 2010-07-20 삼성중공업 주식회사 인슐레이션 패널의 선체 고정구조
FR2931535A1 (fr) 2008-05-21 2009-11-27 Gaztransp Et Technigaz Fixation par collage de blocs isolants pour cuve de stockage de gaz liquefies a l'aide de cordons ondules
KR20110058206A (ko) * 2009-11-26 2011-06-01 대우조선해양 주식회사 액화가스 저장탱크의 단열패널 결합구조
WO2014096600A1 (fr) 2012-12-21 2014-06-26 Gaztransport Et Technigaz Cuve etanche et thermiquement isolante
WO2016046487A1 (fr) * 2014-09-26 2016-03-31 Gaztransport Et Technigaz Cuve étanche et isolante comportant un élément de pontage entre les panneaux de la barrière isolante secondaire
FR3042253A1 (fr) * 2015-10-13 2017-04-14 Gaztransport Et Technigaz Cuve etanche et thermiquement isolante
WO2019086813A1 (fr) * 2017-11-06 2019-05-09 Gaztransport Et Technigaz Cuve etanche et thermiquement isolante comportant des dispositifs d'ancrage des panneaux isolants primaires sur des panneaux isolants secondaires
WO2019234360A2 (fr) 2018-06-06 2019-12-12 Gaztransport Et Technigaz Cuve etanche et thermiquement isolante

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KR20230019471A (ko) 2023-02-08
JP2023527911A (ja) 2023-06-30
CN115715358A (zh) 2023-02-24
FR3111178B1 (fr) 2022-05-06
FR3111178A1 (fr) 2021-12-10

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