EP4545839A1 - Flüssiggasspeicheranlage mit polygonaler trägerstruktur - Google Patents

Flüssiggasspeicheranlage mit polygonaler trägerstruktur Download PDF

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Publication number
EP4545839A1
EP4545839A1 EP24208660.1A EP24208660A EP4545839A1 EP 4545839 A1 EP4545839 A1 EP 4545839A1 EP 24208660 A EP24208660 A EP 24208660A EP 4545839 A1 EP4545839 A1 EP 4545839A1
Authority
EP
European Patent Office
Prior art keywords
vertical
wall
equal
crown portion
sector
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP24208660.1A
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English (en)
French (fr)
Other versions
EP4545839B1 (de
Inventor
Jean-Guy ROUZEAU
Leo COQUAND
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Gaztransport et Technigaz SA
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Gaztransport et Technigaz SA
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Publication of EP4545839A1 publication Critical patent/EP4545839A1/de
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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
    • F17C3/04—Vessels not under pressure with provision for thermal insulation by insulating layers
    • 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
    • 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
    • F17C3/022—Land-based bulk storage containers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C13/00—Details of vessels or of the filling or discharging of vessels
    • 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
    • F17C9/00—Methods or apparatus for discharging liquefied or solidified gases from vessels not under pressure
    • 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
    • F17C2201/0104—Shape cylindrical
    • 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
    • F17C2201/03—Orientation
    • F17C2201/032—Orientation with substantially vertical main axis
    • 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
    • F17C2203/06—Materials for walls or layers thereof; Properties or structures of walls or their materials
    • F17C2203/0634—Materials for walls or layers thereof
    • F17C2203/0636—Metals
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
    • F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
    • F17C2205/0352—Pipes
    • F17C2205/0355—Insulation thereof
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2209/00—Vessel construction, in particular methods of manufacturing
    • F17C2209/23—Manufacturing of particular parts or at special locations
    • F17C2209/232—Manufacturing of particular parts or at special locations of walls
    • 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
    • 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
    • F17C2227/00—Transfer of fluids, i.e. method or means for transferring the fluid; Heat exchange with the fluid
    • F17C2227/01—Propulsion of the fluid
    • F17C2227/0128—Propulsion of the fluid with pumps or compressors
    • F17C2227/0135—Pumps
    • 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
    • F17C2260/013—Reducing manufacturing time or effort
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2270/00—Applications
    • F17C2270/01—Applications for fluid transport or storage
    • F17C2270/0134—Applications for fluid transport or storage placed above the ground
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2270/00—Applications
    • F17C2270/01—Applications for fluid transport or storage
    • F17C2270/0134—Applications for fluid transport or storage placed above the ground
    • F17C2270/0136—Terminals

Definitions

  • the invention relates to a liquefied gas storage facility and to a tracing method for constructing this facility. More particularly, the liquefied gas storage facility comprises a supporting structure having a regular polygonal bottom wall.
  • a liquefied gas storage facility comprising a supporting structure having an internal space delimited by a bottom supporting wall and a sealed and thermally insulating tank installed in the internal space of the supporting structure.
  • the tank comprises a bottom wall arranged on the bottom supporting wall and a vertical wall arranged on the vertical supporting wall.
  • the vertical wall has a plurality of vertical sections.
  • the bottom wall has a plurality of sectors which are images of each other by rotation, and where said bottom wall has the shape of a regular polygon, each side of which corresponds to one of said vertical sections.
  • the number of vertical sides is for example chosen to be equal to 56.
  • the sealed and thermally insulating tank comprises a corrugated waterproof membrane intended to be in contact with a liquefied gas and a thermally insulating barrier located between the waterproof membrane and the supporting structure.
  • the waterproof membrane of the vertical wall comprises vertical corrugations.
  • the waterproof membrane of the bottom wall comprises first corrugations spaced from each other by a wave pitch and oriented along a sector axis perpendicular to the vertical section connected to said angular sector.
  • the corrugated waterproof membrane of each angular sector of the bottom wall comprises a plurality of rectangular metal plates welded together in a sealed manner so as to be arranged to form juxtaposed crown portions. successively along the sector axis.
  • a crown portion is called a set of whole metal plates. In other words, the edges of the crown portions are made up of edges of the metal plates.
  • the crown portions located in the different angular sectors are connected together to form crowns around a central portion of the back wall.
  • an arrangement strategy by angular sector which aims to link the wave pitch of the first undulations and the length of the metal plates, which defines a width of the crown portion, to the angle of the angular sector in order in particular to limit the number of different parts on an angular sector.
  • the arrangement strategy no longer allows for the maintenance of coherent angular sector angles and/or coherent lengths of the metal plates and thus reduces the number of possible solutions.
  • An idea behind the invention is to improve the bottom wall angular sector arrangement strategy in order to maintain consistent angular sector angles and consistent sheet lengths, without complicating the arrangement.
  • One aim of the invention is in particular to provide a membrane arrangement which allows the wave pitch to be greater than the length increment of the outer edge of the crown portion between two successive crowns. This length increment is close to the width of the crown portion multiplied by the angle of the sector.
  • the total number per crown portion is therefore constant per group of M successive crown portions.
  • the factor M makes it possible to obtain arrangement solutions having consistent values for the angular sector angle and the size of the sheets constituting each portion of crown in particular.
  • the factor M makes it possible to keep values of the angular sector angle and the size of the metal plates within an admissible range.
  • such a storage facility may include one or more of the following features.
  • the waterproof membrane comprises a first crown portion, a second crown portion and a third crown portion arranged successively along the sector axis and in the direction of the first vertical section, the total number of first undulations of the first crown portion being equal to N1, the total number of first undulations of the second crown portion being equal to N1, and the total number of first undulations of the third crown portion being equal to N2, with N1 and N2 being positive natural integers, for example with N2 equal to N1+2. This case corresponds to the factor M equal to 2.
  • the waterproof membrane comprises a first crown portion, a second crown portion, a third crown portion and a fourth crown portion arranged successively along the sector axis and in the direction of the first vertical section, the total number of first undulations of the first crown portion being equal to N1, the total number of first undulations of the second crown portion being equal to N1, the total number of first undulations of the third crown portion being equal to N1, and the total number of first undulations of the fourth crown portion being equal to N2, with N1 and N2 positive natural integers, for example with N2 equal to N1+2. This case corresponds to the factor M equal to 3.
  • one or each crown portion comprises a plurality of rectangular metal plates.
  • the crown portions each have a width extending along the sector axis between the inner edge and the outer edge of the crown portion, said width being equal in several of said crown portions, in particular in successive crown portions along the sector axis.
  • the width of the crown portion located near a center of the bottom wall and/or the width of the crown portion located near the vertical wall is different from the width of the other crown portions, preferably the other crown portions being of identical width to each other.
  • the width of at least one of the crown portions is different from the equal width of said several crown portions, for example equal to an integer fraction of the equal width of said several crown portions.
  • the regular wave pitch is greater than the width of one of the crown portions multiplied by the predetermined angle.
  • N is even and preferably is greater than or equal to 4.
  • N is between 8 and 56. According to another particular embodiment, N is equal to 56. According to another particular embodiment, N is equal to 8.
  • the integer k is equal to the number of vertical sides of the vertical wall, divided by the number of angular sectors of the bottom wall of the tank. According to one embodiment, k is equal to 1 or 2.
  • the regular wave pitch is greater than or equal to 400 mm, preferably greater than or equal to 800 mm, preferably between 800 and 1200 mm, for example equal to 1000 mm.
  • the regular wave pitch can be equal to 1020mm and the natural number M can be equal to 3.
  • one or each crown portion of an angular sector comprises at least one corrugated metal connecting plate located on a lateral edge of the crown portion, the corrugated metal connecting plates being configured to connect said crown portion with a crown portion of an adjacent angular section, the corrugated metal connecting plates of the crown portions being aligned with each other in a radial direction, the radial direction being inclined relative to the sector axis, preferably by an angle equal to half of the predetermined angle.
  • the waterproof membrane of the or each angular sector of the bottom wall comprises a radial undulation located near an edge of the angular sector, the radial undulation extending in the radial direction.
  • the first corrugations of the angular sector or of each angular sector comprise first whole corrugations extending from a junction between the bottom wall and the vertical wall to a central crown portion near a center of the bottom wall, and first partial corrugations which are interrupted by a wave interruption when said first partial corrugation crosses one of the corrugated metal connecting plates, the wave interruption being located at a distance from the radial corrugation.
  • the radial undulation of the angular sector is carried out on the corrugated metal connecting plates.
  • the corrugated metal connecting plate of a crown portion of rank A is identical to the corrugated metal connecting plate of a crown portion of rank A+B, with for example a rank A equal to 1 for a central crown portion located near a center of the bottom wall, where the rank is defined as being a natural whole number incremented by 1 moving away along the sector axis towards the vertical wall, A being a natural whole number greater than or equal to 1 and B being a natural whole number greater than or equal to 2.
  • the natural integer B is equal to the natural integer M.
  • the waterproof membrane of one or each angular sector of the bottom wall comprises second undulations spaced from each other and extending at least partially perpendicular to the first undulations.
  • the wave interruption of the first partial undulations is located between two adjacent second undulations.
  • a vessel for transporting a cold liquid product comprises a double hull and a aforementioned storage facility arranged in the double hull.
  • the invention also provides a transfer system for a cold liquid product, the system comprising the aforementioned vessel, insulated pipes arranged to connect the tank installed in the hull of the vessel to a floating or land-based storage structure and a pump for driving a flow of cold liquid product through the insulated pipes from or to the floating or land-based storage structure to or from the vessel tank.
  • the invention also provides a method for loading or unloading a ship, in which a cold liquid product is conveyed through insulated pipes from or to a floating or land-based storage structure to or from the tank of the aforementioned ship.
  • FIG. 1 represents a partial perspective and sectional view of a liquefied gas storage facility.
  • FIG. 2 is a top view of the storage facility of the Figure 1 , allowing to distinguish the polygonal outline of the supporting structure from the Figure 1 in an example of realization.
  • FIG. 3 is a partial perspective view, from the inside of a liquefied storage installation according to the prior art, of the outer end of an angular sector of the bottom wall as well as portions of the vertical wall of the tank.
  • FIG. 4 is a schematic perspective view, from inside the liquefied gas storage facility, of a portion of an angular sector of the bottom wall as well as portions of the vertical wall of the tank according to a first embodiment.
  • FIG. 5 is a schematic perspective view, from inside the liquefied gas storage facility, of a portion of an angular sector of the bottom wall as well as portions of the vertical wall of the tank according to a second embodiment.
  • FIG. 6 represents a top view of the waterproof membrane of a sector of the bottom wall of a tank installed in a liquefied gas storage facility, from inside the liquefied gas storage facility according to one embodiment.
  • FIG. 7 is a view of detail VII of the Figure 6 , more particularly representing a portion of a crown.
  • FIG 8 is a schematic cutaway representation of an LNG carrier vessel comprising a ship tank and a terminal for loading/unloading this tank.
  • the installation 1 is capable of storing a liquefied gas, in particular liquefied natural gas (LNG) at a temperature of approximately -162°C and at atmospheric pressure or other liquefied gases.
  • LNG liquefied natural gas
  • the installation 1 mainly comprises a supporting structure 10 and a sealed and thermally insulating tank 20 installed in the internal space of the supporting structure 10.
  • the supporting structure 10 is first described.
  • the supporting structure 10 comprises a bottom supporting wall 11 and a vertical supporting wall 12.
  • the installation 1 may be designed to be located on land.
  • the bottom load-bearing wall 11 is then typically horizontal, i.e. located in a plane perpendicular to the direction of the acceleration of gravity, represented in the figures by a vertical axis Z, within dimensional tolerances.
  • the bottom load-bearing wall 11 may be located at ground level or possibly below ground level.
  • the supporting structure 10 is for example made of concrete.
  • the outline of the bottom load-bearing wall 11 is intended to have the shape of a regular polygon with N sides, where N is an even integer greater than or equal to 4.
  • An installation 1 where N is equal to 8 or 56 is more particularly interesting.
  • the load-bearing structure 10 comprises a vertical load-bearing wall 12.
  • this vertical load-bearing wall 12 forms a polygonal cylindrical surface, having the polygon formed by the polygonal contour of the bottom load-bearing wall 11 as a director.
  • the vertical load-bearing wall 12 extends in a vertical direction, that is to say in a direction perpendicular to the plane of the bottom load-bearing wall 11 within dimensional tolerances.
  • the vertical load-bearing wall 12 is composed of N vertical load-bearing sections 14.
  • Each of the N sides of the polygonal outline of the bottom load-bearing wall 11 corresponds to an intersection of the bottom load-bearing wall 11 with one of the vertical load-bearing sections 14.
  • the vertical load-bearing sections 14 are connected to each other by edges 13, each edge 13 corresponding to a vertex of the polygonal outline of the bottom load-bearing wall 11.
  • the vertical wall 22 is composed of N vertical sections 24. Each of the N sides of the polygonal outline of the bottom wall 21 corresponds to an intersection of the bottom wall 21 with one of the vertical sections 24.
  • the vertical sections 24 are connected to each other by edges 23, each edge 23 corresponding to a vertex of the polygonal outline of the bottom wall 21.
  • the bottom wall 21 comprises a plurality of angular sectors 25.
  • the sectors 25 are images of each other by rotation around a vertical axis, that is to say around an axis extending parallel to the vertical sides 24. This vertical axis passes through a point located in the vicinity of the geometric center of the load-bearing wall of background 11. More precisely, the sectors 25 are images of each other by rotation of an angle equal to 4x180°/N, in the case where an angular sector 25 is connected to two vertical sections 24. Thanks to this exactly repeated structure, the same parts can be used to construct each angular sector 25.
  • the bottom wall 21 and the vertical wall 22 comprise, going from the supporting structure 10 towards the interior space of the tank 20, a secondary thermally insulating barrier, a secondary sealed membrane, a primary thermally insulating barrier, and a primary sealed membrane 70 intended to be in contact with the liquefied gas contained in the tank 20.
  • the bottom wall 21 and the vertical wall 22 can be made using modular elements. These modular elements can correspond to the GST ® technology marketed by the applicant. Reference may thus be made to the document US 6,035,795 for the description of certain modular elements and to the document WO2022200536 for other specificities of this technology not described here.
  • the primary waterproof membrane 70 of the bottom wall 21 is mainly made up of juxtaposed rectangular metal plates 71. On one of the lateral edges of the sectors 25, the primary waterproof membrane 70 further comprises connecting metal plates 71A.
  • the connecting metal plates 71A are generally trapezoidal in shape and allow the connection between said sector 25 and a neighboring sector 25, thus making it possible to complete the primary waterproof membrane 70.
  • the primary waterproof membrane 70 is corrugated, in order to allow it to resist thermal contraction phenomena due to contact with the liquefied gas. More precisely, at the level of the bottom wall 21, the primary waterproof membrane 70 has at least corrugations 72 which are radiating, that is to say which are parallel to each other and extend along a sector axis X from the center of the tank 20 towards the vertical sides 24, the sector axis X being perpendicular to the vertical axis Z.
  • the first undulations 72 are spaced two by two with a regular wave pitch 26.
  • the primary waterproof membrane 70 typically has second undulations 73 which are perpendicular to the first undulations 72.
  • the plates 71, 71A each have portions of corrugations which, when the plates 71 and 71A are juxtaposed, together constitute the corrugations 72, 73.
  • the rectangular metal plates 71 are arranged to form crown portions 75 juxtaposed successively along the sector axis X.
  • the connecting metal plates 71A extend each of the crown portions 75 so as to form, with all of the angular sectors, crowns all around the center of the bottom wall 21.
  • the corrugated metal connecting plates 71A of the crown portions 75 are aligned with each other in a radial direction.
  • the radial direction is inclined relative to the sector axis X by an angle equal to half of the angular sector angle 25.
  • the waterproof membrane 70 of each angular sector 25 of the bottom wall 21 comprises a radial corrugation 77 located near an edge of the angular sector 25.
  • the radial corrugation 77 extends in the radial direction and is produced on the corrugated metal connecting plates 71A.
  • FIG. 3 representing the prior art, shows, in perspective from the inside of the installation 1, the radially outer end of an angular sector 25 as well as portions of the vertical wall 22 of the tank 20.
  • the vertical load-bearing sections 14 of the vertical load-bearing wall 12 are not shown.
  • the metallic waterproof membrane 170 is mainly made up of juxtaposed rectangular metal plates 171 and has corrugations 172 which are vertical, that is to say which extend parallel to the vertical axis Z, parallel to the vertical load-bearing sections 14.
  • the vertical corrugations 712 are spaced two by two with the regular wave pitch 26.
  • the metallic waterproof membrane 170 typically has horizontal undulations 173 which are perpendicular to the vertical undulations 172 and extend all the way around the tank 20.
  • These metallic plates 171 each have portions of undulations which, when the metallic plates 171 are juxtaposed, together constitute the undulations 172, 173, as visible in Figure 3 .
  • each angular sector 25 is connected on the one hand to a complete vertical section 241 among the N vertical sections 24 and on the other hand to two half-vertical sections 242 each corresponding to half of a vertical section 24 among the N vertical sections 24 of the vertical wall 22.
  • the complete vertical section 241 is centered on the angular sector 25 and the vertical half-sections 242 are located on either side of the complete vertical section 241.
  • the angular sectors 25 are represented schematically in dotted lines on the Figure 2
  • the sector axis X is here defined for each angular sector 25 as passing through the center of the tank 20 and perpendicular to the corresponding complete vertical section 241.
  • the metal plates 71 and the metal connecting plates 71A are extended by metal joining plates 74 which carry portions of corrugations situated in the extension of the portions of corrugations of the metal plates 71, 71A, so as to extend the first corrugations 72 to corner joining pieces 69.
  • corner joining pieces 69 are more particularly described in the document WO2022200536 .
  • the first undulations 72 are extended to the complete vertical section 241 and to the vertical half-sections 242, so as to be continuously connected to the vertical undulations 172 by means of the corner joining pieces 69.
  • FIGS. 4 and 5 represent two embodiments of the storage installation 1 in which, unlike the prior art illustrated in Figure 3 , by locally decorrelating vertical undulations 172 from their associated first undulations 72.
  • the solid lines represent the edges of the plates 71, 71A, 171 as well as the junction 28 between the bottom wall 21 and the vertical wall 22, while the dotted lines represent the undulations 72, 73, 77, 172, 173.
  • the solid lines represent the edges of the plates 71, 71A while the dotted lines represent the corrugations 72, 73, 77.
  • the continuity of the first undulations 72 with the vertical undulations 172 at the level of the complete vertical section 241 for each angular sector 25 is retained in a manner analogous to the prior art. However, at the level of each vertical half-pan 242, the vertical undulations 172 are discontinuous with the first undulations 72.
  • a singular wave pitch 27 smaller than the regular wave pitch 26 has been introduced between each vertical half-pan 242 and the complete vertical pan 241.
  • the two vertical undulations 172 delimiting the singular wave pitch 27 thus comprise a singular undulation 174 located on the vertical half-pan 242, as visible in Figures 4 and 5 .
  • the singular undulation 174 as well as the other vertical undulations 172 located between the singular undulation 174 and an outer edge of the half-panel are misaligned and therefore discontinuous with the first undulations 72 of the bottom wall 21.
  • the presence of the singular wave pitch 27 thus makes it possible to add intermediate dimensional solutions, which can be modulated with the value of the singular wave pitch 27, between two arrangements comprising only regular wave pitches 26.
  • An abrupt stop of the first undulations 72 and the vertical undulations 172 at the junction between a vertical half-panel 242 and the bottom wall 21 may affect the flexibility of the waterproof membrane at this junction.
  • the vertical undulations 172 of each vertical half-panel 242 are extended onto the bottom wall 21 by a vertical undulation extension 175 so that the vertical undulations 172 overflow onto the bottom wall 21.
  • This extension onto the bottom wall 21 remains localized, however.
  • the vertical undulation extensions 175 are interrupted on the bottom wall 21 at a distance from the second undulation 73 located near the junction between the bottom wall 21 and the vertical wall 22.
  • first undulations 72 which are extended on the vertical half-pan 242 by an extension of first undulation 76 so that the first undulations 72 overflow onto the vertical wall 22.
  • This extension on the vertical wall 22 remains however localized.
  • the extensions of first corrugation 76 are interrupted on the vertical wall 22 at a distance from the horizontal corrugation 173 located near the junction between the bottom wall 21 and the vertical wall 22.
  • first undulations 72 and the vertical undulations 172 are extended respectively on the vertical wall 22 and the bottom wall 21.
  • FIG. 6 represents the primary waterproof membrane 70 of an angular sector 25 of the bottom wall 21 seen from above according to one embodiment.
  • the metal plates 71 of each angular sector 25 are arranged to form crown portions 75 juxtaposed successively along the sector axis X.
  • the width of a crown portion 75 along the X axis corresponds for a large majority of the metal plates 71 to the length of these plates 71.
  • metal connecting plates 71A do not all have the same dimensions. These metal connecting plates 71A also have in the example of the Figure 6 a pattern that repeats every three crown portions 75.
  • an arrangement strategy by angular sector 25 is applied which aims to link the wave pitch 26 of the first undulations 72 and the length of the metal plates 71, or a width of the crown portion 75, to the angle of the angular sector 25 in order in particular to limit the number of different parts on an angular sector 25.
  • the total number of first undulations 72 present on the crown portions 75 which is increasing in the direction of the vertical wall 22 is increased at each successive crown portion 75 by two new first undulations 72 on either side of the angular sector 25.
  • the total number of first undulations 72 present on the crown portions 75 is increased only every three successive crown portions 75.
  • the factor three thus makes it possible to keep values of the angular sector angle 25 and the size of the metal plates 71 within an admissible range.
  • the first undulations 72 of each angular sector 25 thus comprise, as visible in Figure 6 , first whole corrugations 721 extending from a junction between the bottom wall 21 and the vertical wall 22 to a central crown portion 75 near a center of the bottom wall 21, and first partial corrugations 722 which are interrupted by a wave interruption 723.
  • the first partial corrugations 722 are interrupted when said first partial corrugation 722 crosses a corrugated metal connecting plate 71A.
  • the wave interruption 723 is located at a distance from the radial corrugation 77 of said angular sector 25 or from a neighboring angular sector.
  • the wave interruption 723 is located between two adjacent second corrugations 73.
  • FIG. 7 more particularly represents one of the portions of crown 75 of the angular sector 25 illustrated in Figure 6 .
  • This figure illustrates in particular the particular assembly of the metal plates 71 with the connecting metal plates 71A.
  • one of the first partial undulations 722 crosses one of the connecting metal plates 71A and thus has a wave interruption 723.
  • a cutaway view of a LNG carrier ship 100 shows a sealed and thermally insulating tank 112 of generally prismatic shape mounted in the double hull 102 of the ship 100.
  • the wall of the tank comprises a primary sealed membrane intended to be in contact with the LNG contained in the tank, a secondary sealed membrane arranged between the primary sealed membrane and the double hull 102 of the ship 100, and two thermally insulating barriers arranged respectively between the primary waterproof membrane and the secondary waterproof membrane and between the secondary waterproof membrane and the double shell 102.
  • loading/unloading pipelines 103 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 112.
  • FIG 8 represents an example of a maritime terminal comprising a loading and unloading station 105, an underwater pipeline 106 and a land storage facility 1.
  • the loading and unloading station 105 is a fixed offshore installation comprising a mobile arm 104 and a tower 108 which supports the mobile arm 104.
  • the mobile arm 104 carries a bundle of insulated flexible pipes 109 which can be connected to the loading/unloading pipelines 103.
  • the orientable mobile arm 104 adapts to all sizes of LNG carriers.
  • a connecting pipe, not shown, extends inside the tower 108.
  • the loading and unloading station 105 allows the loading and unloading of the LNG carrier 100 from or to the land-based storage facility 1.
  • the latter comprises liquefied gas storage tanks 20 and connecting pipes 111 connected by the subsea pipe 106 to the loading or unloading station 105.
  • the subsea pipe 106 allows the transfer of the liquefied gas between the loading or unloading station 105 and the land-based storage facility 1 over a long distance, for example 5 km, which makes it possible to keep the LNG carrier 70 at a great distance from the coast during the loading and unloading operations.
  • pumps on board the ship 100 and/or pumps equipping the land-based storage facility 1 and/or pumps equipping the loading and unloading station 105 are used.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
EP24208660.1A 2023-10-27 2024-10-24 Flüssiggasspeicheranlage mit polygonaler trägerstruktur Active EP4545839B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR2311719A FR3154784A1 (fr) 2023-10-27 2023-10-27 Installation de stockage de gaz liquéfié comportant une structure porteuse polygonale

Publications (2)

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EP4545839A1 true EP4545839A1 (de) 2025-04-30
EP4545839B1 EP4545839B1 (de) 2026-04-08

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US (1) US20250137588A1 (de)
EP (1) EP4545839B1 (de)
JP (1) JP2025074053A (de)
CN (1) CN119900920A (de)
CA (1) CA3250532A1 (de)
FR (1) FR3154784A1 (de)
MX (1) MX2024012903A (de)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3121196B1 (fr) * 2021-03-24 2024-03-15 Gaztransport Et Technigaz Installation de stockage de gaz liquéfié comportant une structure porteuse polygonale, et procédé de traçage pour la construction de cette installation

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6035795A (en) 1998-07-24 2000-03-14 Gaz Transport Et Technigaz Impermeable and thermally insulating tank comprising prefabricated panels
FR2912385A1 (fr) 2007-02-13 2008-08-15 Gaz Transp Et Technigaz Soc Pa Structure cylindrique composee d'elements rectangulaires.
FR2951521A1 (fr) * 2009-10-20 2011-04-22 Gaztransp Et Technigaz Cuve polygonale pour gnl
WO2022200536A1 (fr) 2021-03-24 2022-09-29 Gaztransport Et Technigaz Installation de stockage de gaz liquéfié comportant une structure porteuse polygonale

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3339783A (en) * 1965-02-24 1967-09-05 Exxon Research Engineering Co Cryogenic container
US4062468A (en) * 1977-03-23 1977-12-13 Bongiovanni John P Fuel storage tank insulating system

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6035795A (en) 1998-07-24 2000-03-14 Gaz Transport Et Technigaz Impermeable and thermally insulating tank comprising prefabricated panels
FR2912385A1 (fr) 2007-02-13 2008-08-15 Gaz Transp Et Technigaz Soc Pa Structure cylindrique composee d'elements rectangulaires.
FR2951521A1 (fr) * 2009-10-20 2011-04-22 Gaztransp Et Technigaz Cuve polygonale pour gnl
WO2022200536A1 (fr) 2021-03-24 2022-09-29 Gaztransport Et Technigaz Installation de stockage de gaz liquéfié comportant une structure porteuse polygonale
FR3121196A1 (fr) 2021-03-24 2022-09-30 Gaztransport Et Technigaz Installation de stockage de gaz liquéfié comportant une structure porteuse polygonale, et procédé de traçage pour la construction de cette installation

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FR3154784A1 (fr) 2025-05-02
JP2025074053A (ja) 2025-05-13
US20250137588A1 (en) 2025-05-01
CN119900920A (zh) 2025-04-29
EP4545839B1 (de) 2026-04-08
MX2024012903A (es) 2025-05-02
CA3250532A1 (fr) 2025-06-03

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