EP3821167B1 - Behälterwand mit einer dichtmembran mit einer wellung mit einem verstärkten krummlinigen abschnitt - Google Patents

Behälterwand mit einer dichtmembran mit einer wellung mit einem verstärkten krummlinigen abschnitt Download PDF

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Publication number
EP3821167B1
EP3821167B1 EP19742454.2A EP19742454A EP3821167B1 EP 3821167 B1 EP3821167 B1 EP 3821167B1 EP 19742454 A EP19742454 A EP 19742454A EP 3821167 B1 EP3821167 B1 EP 3821167B1
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EP
European Patent Office
Prior art keywords
curvilinear
reinforcement
tank wall
tank
edge
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP19742454.2A
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English (en)
French (fr)
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EP3821167A1 (de
Inventor
Vincent Berger
Marc BOYEAU
Mohamed Sassi
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Gaztransport et Technigaz SA
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Gaztransport et Technigaz SA
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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
    • F17C13/00—Details of vessels or of the filling or discharging of vessels
    • F17C13/004—Details of vessels or of the filling or discharging of vessels for large storage 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
    • F17C1/00—Pressure vessels, e.g. gas cylinder, gas tank, replaceable cartridge
    • F17C1/12—Pressure vessels, e.g. gas cylinder, gas tank, replaceable cartridge with provision for thermal insulation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
    • B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
    • B67D9/00—Apparatus or devices for transferring liquids when loading or unloading ships
    • B67D9/02—Apparatus or devices for transferring liquids when loading or unloading ships using articulated pipes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C13/00—Details of vessels or of the filling or discharging of vessels
    • F17C13/001—Thermal insulation specially adapted for cryogenic vessels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17D—PIPE-LINE SYSTEMS; PIPE-LINES
    • F17D1/00—Pipe-line systems
    • F17D1/08—Pipe-line systems for liquids or viscous products
    • F17D1/082—Pipe-line systems for liquids or viscous products for cold fluids, e.g. 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
    • F17C2201/00—Vessel construction, in particular geometry, arrangement or size
    • F17C2201/01—Shape
    • F17C2201/0147—Shape complex
    • 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
    • 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
    • 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
    • F17C2270/00—Applications
    • F17C2270/01—Applications for fluid transport or storage
    • F17C2270/0102—Applications for fluid transport or storage on or in the water
    • F17C2270/0105—Ships
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2270/00—Applications
    • F17C2270/01—Applications for fluid transport or storage
    • F17C2270/0102—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 tanks with corrugated sealing membrane, for the storage and/or transport of a fluid, such as liquefied gas.
  • Tight membrane tanks are used in particular for the storage of liquefied natural gas (LNG), which is stored, at atmospheric pressure, at approximately -163°C or for the storage of Liquefied Petroleum Gas (LPG). These tanks can be installed on land or on a floating structure. In the case of a floating structure, 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.
  • LNG liquefied natural gas
  • LPG Liquefied Petroleum Gas
  • tanks with corrugated sealing membranes are known, the sealing membrane of which, intended to be in contact with the liquefied gas contained in the tank, is reinforced using elements of reinforcement.
  • the reinforcing elements are arranged under the undulations of the waterproofing membrane, between said waterproofing membrane and the thermally insulating barrier supporting this waterproofing membrane.
  • Such reinforcing elements make it possible to reduce the stresses which are likely to be caused, in the waterproofing membrane, by a multitude of factors, including thermal shrinkage when the tank is cooled, the bending effect of the ship's beam, and the dynamic pressure due to the movement of the cargo, in particular due to swell.
  • These reinforcing elements are generally hollow in order to allow gas to circulate between the corrugations and the thermally insulating barrier by passing through the reinforcing elements.
  • Such tanks are described in particular in the documents FR2936784 , FR2963818 Or FR3039248 .
  • the reinforcing elements disclosed in the aforementioned documents are generally made from rectilinear profiles and are therefore placed in the rectilinear portions of the corrugations.
  • curvilinear portions of the undulations are notably present in specific zones of the tank, for example in a corner zone between two walls, in the zone of a support foot intended to provide guidance for a loading tower/ unloading or in the area of a dome intended to evacuate gas or liquid.
  • KR20130113772 also discloses a reinforcing device arranged inside a rectilinear portion of a corrugation.
  • the reinforcement device comprises a plurality of reinforcement sections which each have a profiled shape developing in a rectilinear direction and which are connected to each other by connecting members.
  • An idea underlying the invention is to propose a waterproof and thermally insulating tank wall comprising a sealing membrane equipped with an undulation having a curvilinear portion and further comprising a curvilinear reinforcement device which is simple to produce and which makes it possible to reliably reinforce said curvilinear portion.
  • the invention provides a tank wall comprising a thermally insulating barrier and a sealing membrane resting on the thermally insulating barrier, the sealing membrane comprising an undulation having a curvilinear portion developing in a curvilinear direction and at least one curvilinear reinforcement device arranged inside the curvilinear portion, between the sealing membrane and the thermally insulating barrier so as to reinforce said curvilinear portion, said curvilinear reinforcement device comprising a plurality of reinforcement sections which each have a profiled shape developing in a rectilinear direction, the curvilinear reinforcement device further comprising a connecting member connecting said reinforcement sections so as to maintain them in a position in which, in projection in a plane parallel to the wall of tank, the rectilinear direction of each of the reinforcement sections is oriented tangentially to the curvilinear direction.
  • curvilinear portion of the corrugation is reinforced by means of a curvilinear reinforcement device which is capable of ensuring reliable support and this by means of reinforcement sections which have a rectilinear profiled shape and which are therefore simpler to produce than reinforcing elements which would be formed in a curvilinear profile.
  • such a tank wall may have one or more of the following characteristics.
  • each reinforcing section has an opening through which the connecting member is fitted.
  • each reinforcement section comprises a sole resting against the thermally insulating barrier.
  • each sole comprises two side walls and a flat lower wall which rests against the thermally insulating barrier and which connects the two side walls, said opening being defined by the side walls and the lower wall.
  • the connecting member is a rail which has a curvilinear part extending in the curvilinear direction of the curvilinear portion and which has a curvilinear internal edge and a curvilinear external edge having a greater curvature than that of the curvilinear internal edge.
  • one of the internal curvilinear and external curvilinear edges comprises alternating projections and hollows forming a crenellation, each projection being housed in the opening of one of the reinforcement sections.
  • the recesses between the projections make it possible to create clearances facilitating the installation of the reinforcing sections in the curvilinear part of the connecting member.
  • the crenellation is provided in the curvilinear internal edge of the rail.
  • the crenellation is provided in the curvilinear external edge of the rail.
  • At least one of the reinforcing sections has a hollow envelope and secant reinforcing webs which extend inside the hollow envelope from one edge to the other of said hollow envelope . This makes it possible to increase the rigidity of the reinforcement sections.
  • the reinforcing sails intersect in a plane of symmetry of the reinforcing section.
  • each reinforcing section comprises two reinforcing sails arranged in the shape of an X.
  • each reinforcement section comprises a support portion which has a shape adapted to the internal shape of the corrugation.
  • the support portion has an external shape of a semi-elliptical dome.
  • the curvilinear portion has an internal curvilinear edge and an external curvilinear edge having a greater curvature than the internal curvilinear edge, at least one of the reinforcement sections having two ends which are each inclined relative to the rectilinear direction of said reinforcement section so that said reinforcement section widens from the internal curvilinear edge towards the external curvilinear edge of the curvilinear portion.
  • the reinforcement sections at the internal curvilinear edge are joined together.
  • the two ends of the reinforcement section each extend in a plane which is orthogonal to a tangent to the curvilinear direction, at the intersection between said plane and the curvilinear direction.
  • the two ends of said reinforcement section each extend in a plane parallel to the direction of thickness of the tank wall.
  • angles formed by the plane of two ends of each reinforcement section with respect to the rectilinear direction of said reinforcement section are of the same value and in opposite directions.
  • the corrugation comprises two rectilinear portions arranged on either side of the curvilinear portion, in the extension thereof, a reinforcing element being arranged in each of the two rectilinear portions, between the membrane of sealing and the thermally insulating barrier, the body of connection being fitted into an opening formed in at least one of the reinforcing elements.
  • the curvilinear portion is arranged near a corner zone of said tank wall.
  • the curvilinear portion is arranged near a singular zone of said tank wall in which the flatness of the sealing membrane is interrupted.
  • the singular zone comprises a support foot intended to provide guidance for a loading/unloading tower.
  • the singular zone comprises a dome intended to evacuate gas or liquid.
  • the invention also provides a tank comprising a aforementioned tank wall.
  • the invention also provides a ship comprising a supporting structure and a aforementioned tank anchored in said supporting structure.
  • the invention also provides a method of loading or unloading such a vessel, in which a fluid is conveyed through insulated pipes from or to a floating or terrestrial storage installation to or from the tank of the ship.
  • the invention also provides a transfer system for a fluid, 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 or land storage installation and a pump for driving fluid through the insulated pipelines to or from the floating or land-based storage facility to or from the vessel tank.
  • a wall 1 for a waterproof and thermally insulating tank intended for the storage of a liquefied gas.
  • the liquefied gas may in particular be Liquefied Natural Gas (LNG) or Liquefied Petroleum Gas (LPG).
  • Each wall 1 comprises a multilayer structure which successively presents, from the outside towards the inside, according to the direction of thickness of the wall, at least one primary thermally insulating barrier 2 resting directly or indirectly against a supporting structure, not illustrated on there figure 1 , and a primary sealing membrane 3 intended to be in contact with the liquefied gas contained in the interior space of the tank.
  • each wall 1 can further comprise a secondary thermally insulating barrier resting against the supporting structure and a secondary sealing membrane anchored on the secondary thermally insulating barrier and against which the primary thermally insulating barrier rests.
  • the supporting structure is for example formed by the double hull of a ship but can more generally be formed from any type of rigid partition having appropriate mechanical properties.
  • the primary thermally insulating barrier 2 comprises a plurality of heat-insulating elements 4 which are anchored to the supporting structure, either directly or by being anchored to a secondary thermally insulating barrier, itself anchored to the supporting structure.
  • the heat-insulating elements 4 are juxtaposed with each other and jointly form a flat support surface on which the primary waterproofing membrane 3 is anchored.
  • each heat-insulating element 4 is equipped with metal plates 5 for anchoring the edge of the metal sheets of the primary waterproofing membrane 3.
  • the metal plates 5 extend in two directions perpendicular to each other.
  • Each heat-insulating element 5 comprises a layer of polymer foam 6 and at least one internal plate 7, rigid, for example made of plywood, which is fixed on the layer of polymer foam 6.
  • the metal plates 23 are placed in recesses provided on the internal surface of the internal plate 7 such that the internal surface of the metal plates 23 is flush with the internal surface of the internal plate 7.
  • the primary sealing membrane 3 comprises a plurality of corrugated metal sheets which are overlap welded to each other in a sealed manner and welded to the metal plates 23 so as to anchor the primary sealing membrane 3 to the primary thermally insulating barrier 2.
  • Each metal sheet comprises a first series of parallel corrugations, called high corrugations 8, and a second series of parallel corrugations, called low corrugations 9, which extend perpendicular to the corrugations 8 of the first series.
  • high corrugations 8 a first series of parallel corrugations
  • low corrugations 9 which extend perpendicular to the corrugations 8 of the first series.
  • the terms “high” and “low” have a relative meaning and mean that the undulations 9, called low, have a height lower than the undulations 8, called high.
  • the undulations 8, 9 have identical heights.
  • the primary sealing membrane 3 comprises a node zone 10.
  • the node zone 10 comprises a central portion 11 having a peak projecting towards the interior of the tank. Furthermore, the central portion 11 is bordered, on the one hand, by a pair of concave undulations 12 formed in the crest of the high undulation 8 and, on the other hand, by a pair of recesses 13 into which the low ripple 9.
  • the corrugations 8, 9 of the metal sheets allow the primary sealing membrane 3 to be flexible in order to be able to deform under the effect of thermal and mechanical stresses generated by the liquefied gas stored in the tank.
  • corrugated metal sheets can in particular be made of stainless steel, aluminum, invar ® , that is to say an alloy of iron and nickel whose expansion coefficient is typically between 1, 2.10 -6 and 2.10 -6 K -1 , or in an iron alloy with a high manganese content whose expansion coefficient is typically of the order of 7.10 -6 K -1 .
  • the metal sheet has a thickness of approximately 1.2 mm. Other thicknesses are also possible, knowing that a thickening of the metal sheet leads to an increase in its cost and generally increases the rigidity of the corrugations.
  • the tank wall 1 comprises a plurality of reinforcing elements 14, 15 which are arranged inside the corrugations 8, 9 and arranged between the primary sealing membrane 3 and the primary thermally insulating barrier 2.
  • Such elements reinforcements 14, 15 aim to support and reinforce the undulations 8, 9 of the primary sealing membrane 3.
  • Each reinforcing element 14, 15 comprises a hollow envelope which constitutes the main body of the reinforcing element 14, 15 and which is inserted in an undulation 8, 9 of the primary sealing membrane 3.
  • Each reinforcing element 14, 15 has a profiled shape of constant section.
  • the two longitudinal ends 16, 17 of each reinforcing element 14 intended to be arranged in one of the high undulations 8 are cut along a plane inclined relative to the longitudinal axis of said reinforcing element 14.
  • the two longitudinal ends 18, 19 of the reinforcing elements 15 intended to be arranged in the lower undulations 9 can for their part be cut orthogonal to the longitudinal direction of said reinforcing elements 15.
  • Each reinforcing element 14, 15 can be manufactured to any desired length.
  • the length of the reinforcing element 14, 15 is preferably substantially equal to the inter-corrugation interval between the corrugations which intersect the corrugation in which said reinforcing element 14, 15 is inserted. More precisely, for the reinforcing elements 14 intended to reinforce the high corrugations 8, the length of the hollow envelope at the top is for example equal to the length of the portion of the high corrugation which has a uniform section between two zones of knot 11. This portion with a uniform section stops when the high undulation 8 presents a slight lateral constriction marking the beginning of the knot zone 11.
  • the inclination of the longitudinal ends 16, 17 of the reinforcing elements 14 hollows corresponds substantially to the inclination of this lateral constriction, so that the hollow envelope of said reinforcing elements approaches as close as possible to the node zone 11 to optimize the support of the high corrugation 8.
  • the reinforcing elements 14, 15 are made of metal, such as aluminum or an alloy or of polymer material, such as polyethylene, polycarbonate or polyether imide, advantageously reinforced by fibers, such as than glass fibers.
  • THE figures 5 and 6 respectively represent the section of a reinforcing element 15, 14 intended to reinforce a lower corrugation 9 and a higher corrugation 8.
  • the hollow envelope comprises a lower sole 20 and a support portion 21, superior.
  • the support portion 21 can be produced according to various geometries, as illustrated for example in the document FR2936784 , depending in particular on the geometry of the undulations 8, 9 of the primary sealing membrane 3.
  • the external shape of the support portion 21 is adapted to the shape interior of the corrugation 8, 9 in which the reinforcing element 14, 15 is inserted, so as to offer effective support of substantially the entire surface of the corrugation 8, 9.
  • the shape outer section of the support portion 21 is a semi-elliptical dome.
  • the reinforcing element 14, 15 is made of a material having a different thermal behavior from the primary sealing membrane 3, its dimensioning must take this difference into account to effectively support the undulation 8, 9 at the temperature d use, for example around -162°C for Liquefied Natural Gas.
  • the sole 20 has a lower wall 22 which is flat and which thus rests against the internal plate 7 of the heat-insulating elements 5 and two side walls 24, 25 which are connected to each other by the lower wall 22.
  • the two side walls 24, 25 are extended upwards by the support portion 21.
  • the lower wall 22 and the side walls 24, 25 define an opening 26 passing through the reinforcing element 14, 15 in the longitudinal direction of said reinforcement element. reinforcement 14, 15 and in which a connecting member described below is intended to fit.
  • the support portion 21 comprises secant reinforcing sails 27, 28 which extend from one edge to the other of the hollow envelope and which intersect at the level of a plane of symmetry A of the reinforcing element 14, 15.
  • the support portion 21 comprises two reinforcing sails 27, 28 arranged in the shape of an X.
  • connecting members 29 make it possible to stably align the reinforcing elements 14 intended to be arranged in the high undulations 8, on the one hand, and/or the reinforcing elements 15 intended to be arranged in the lower undulations 9, on the other hand.
  • Each connecting member 29 is constituted by a rail 30 which is arranged facing a node zone 11 of the primary sealing membrane 3.
  • the rail 30 has two ends 31, 32 which are respectively fitted inside the an opening 26 made in the sole 20 of one and the other of the two reinforcing elements 14 arranged in the high corrugation 8, 9 on either side of said node zone 11.
  • a spacer 33 making it possible to support the lower part of the upper corrugation 8 is arranged in the extension of each of the longitudinal ends 16, 17 of the reinforcing elements 14.
  • Each spacer 33 is hollow and comprises a lower wall, an upper wall and two side walls connecting the upper wall and the lower wall.
  • the lower wall of the spacer 33 extends in the extension of the lower wall 22 of the sole 20 of the adjacent reinforcing element 14.
  • the edge of the side walls of each spacer 33 which faces the longitudinal end 16, 17 of the adjacent reinforcing element 14 is beveled so as to press against the beveled end of the reinforcing element. reinforcement 14.
  • the rail 30 has a cross shape so as to define two opposite legs 34, 35 which are respectively fitted into an opening 26 formed in one and the other of the reinforcing elements 15 arranged in the low undulation 9, on either side of the node zone 11.
  • THE figure 2 And 3 represent a corner zone between two walls of the tank.
  • the primary sealing membrane 3 of one of the walls here has a curvilinear portion 36 extending in a curvilinear direction d1.
  • the curvilinear direction d1 corresponds more particularly to the direction of the top of the undulation in said curvilinear portion 36.
  • the curvilinear portion 36 is provided in a junction piece 38 which is overlap welded with parallelepiped metal plates, as illustrated in the figure 1 .
  • the junction piece 38 is also overlap welded with a corner piece 39.
  • the corner piece 39 comprises two wings 40, 41 which are respectively parallel to one and the other of the adjacent walls.
  • the corner piece 40 is corrugated and thus ensures continuity of the undulations of the primary sealing membrane 3 in the corner zone between the two walls.
  • the curvilinear portion 36 thus makes it possible to ensure a deviation of the undulation.
  • the primary sealing membrane 3 comprises such curvilinear portions 36 on the cofferdam walls at the level of the corner zone of said cofferdam walls with the upper and lower oblique walls.
  • a curvilinear reinforcement device 37 is arranged inside the curvilinear portion 36 between the primary sealing membrane 3 and the primary thermally insulating barrier 2.
  • the curvilinear reinforcement device 36 comprises a plurality of reinforcement sections 42, 43, 44 and a member of connection 45 connecting said reinforcing sections 42, 43, 44 so as to ensure their positioning.
  • the curvilinear reinforcement device 37 comprises three reinforcement sections 42, 43, 44.
  • the curvilinear reinforcement device 37 may only comprise two reinforcement sections or present a number of reinforcement sections greater than or equal to three.
  • the reinforcing sections 42, 43, 44 are made of metal, such as aluminum or an alloy or of polymer material, such as polyethylene, polycarbonate or polyether imide, advantageously reinforced by fibers, such as fibers of glass.
  • Each reinforcement section 42, 43, 44 comprises a hollow envelope and has a profiled shape which develops in a rectilinear direction d2, d3, d4.
  • the rectilinear direction d2, d3, d4 of the reinforcement sections 42, 43, 44 corresponds to the direction of the neutral fiber of said reinforcement sections 42, 43, 44.
  • Each of the reinforcement sections 42, 43, 44 is advantageously obtained by cutting of a rectilinear profile with constant section.
  • the curvilinear portion 36 is arranged in the extension of a high undulation 8 and thus has a section substantially similar to that of a high corrugation 8.
  • the section of each reinforcement section 42, 43, 44 is identical to the section, shown on the Figure 6 , reinforcing elements 15 intended to be positioned inside the high undulations 8.
  • the curvilinear portion 36 is arranged in the extension of a low undulation 9 and thus presents a section substantially similar to that of a low undulation 9.
  • the curvilinear portion 31 may have a shape different from that of the high or low undulation which it extends. In such a case, the reinforcing sections 42, 43, 44 then have a section different from that of the reinforcing elements 14, 15 arranged in the upper 8 and lower 9 undulations.
  • the connecting member 45 is curvilinear and develops along the curvilinear direction d1 of the curvilinear portion 36.
  • each of the reinforcing sections 42, 43, 44 has an opening 26 through which the member is fitted connecting member 45.
  • the connecting member 45 thus makes it possible to position each of the reinforcing sections 42, 43, 44 in a position such that, in projection in a plane parallel to the wall 1, the rectilinear direction d2, d3, d4 of said reinforcement section 42, 43, 44 is oriented tangentially or substantially tangentially to the curvilinear direction d1 of the curvilinear portion 36.
  • the two ends of the connecting member 45 are also fitted into openings 26 made in one and the other of the two rectilinear wave reinforcements 14 which are positioned in the two rectilinear portions of the corrugation connecting to the curvilinear portion 36.
  • each reinforcement section 42, 43, 44 has a trapezoidal shape.
  • each reinforcement section 42, 43, 44 has two beveled ends 46, 47 which are each inclined relative to the rectilinear direction d2, d3, d4 of said reinforcement section 42, 43, 44 so as to that said reinforcing section 42, 43, 44 widens from the internal edge 48 towards the external edge 49 of the curvilinear portion 36, that is to say from the edge having the radius of curvature the weaker towards the edge having the largest radius of curvature.
  • the reinforcement sections 42, 43, 44 can be joined together in the portion in contact with the internal edge 48.
  • each end 46, 47 extends in a plane which is parallel to the direction of thickness of the wall. Furthermore, the angle formed by the plane of each end 46, 47 with respect to the rectilinear direction d2, d3, d4 of the reinforcement section 42, 43, 44 is such that said plane of each end 46, 47 is orthogonal or substantially orthogonal to the tangent to the curvilinear direction d1, at the intersection of said plane with said curvilinear direction d1.
  • the two beveled ends 46, 47 of the reinforcement section 42, 43, 44 each extend in a plane which is orthogonal to a tangent to the curvilinear direction d1, at the intersection between said plane and the curvilinear direction d1.
  • each reinforcement section 42, 43, 44 the angles formed by the planes of two ends of each reinforcement section 42, 43, 44 with respect to the rectilinear direction d2, d3, d4 of said reinforcement section 42, 43, 44 are of the same value and direction opposites.
  • the profile shape of the reinforcement sections 42, 43, 44 is symmetrical, this makes it possible to cut the reinforcement sections 42, 43, 44, one after the other, in a rectilinear profile with constant section, and this without falling material.
  • the two ends of the reinforcement sections 42, 43, 44 extend in a plane orthogonal to the rectilinear direction d2, d3, d4 of said reinforcement section 42, 43, 44.
  • the connecting member 45 is a curvilinear rail which has a curvilinear part 50 intended to extend in the curvilinear direction d1 of the curvilinear portion 36 of the corrugation.
  • the curvilinear rail has a rectangular section corresponding substantially to the dimensions of the opening 26 provided in the reinforcing sections 42, 43, 44.
  • the connecting member 45 thus comprises a curvilinear internal edge 51 and a curvilinear external edge 52 which has a radius of curvature greater than that of the curvilinear internal edge 51.
  • the curvilinear internal edge has a crenellation formed by alternating projections 53 and recesses 54.
  • Each of the projections 53 is intended to be housed in the opening 26 of one of the reinforcing sections 42, 43, 44.
  • the hollow 54 between the projections 53 thus makes it possible to create a clearance facilitating the installation of the reinforcing sections 42, 43, 44 in the curvilinear part 50 of the connecting member 45.
  • the crenellation is formed in the curvilinear external edge 52 of the connecting member 45.
  • the curvilinear portion of the corrugation is provided in a primary sealing membrane and the curvilinear reinforcing device is placed between said primary sealing membrane and a thermal barrier primary insulating
  • the curvilinear portion can also be provided in a secondary sealing membrane, the curvilinear reinforcing device then being placed between the secondary sealing membrane and a secondary thermally insulating barrier.
  • the curvilinear portion is not provided near a corner zone of the wall but near a support foot intended to provide guidance for a tower loading/unloading.
  • rectilinear portions are described and illustrated in particular in relation to Figure 9 of the document WO2011157915 .
  • the curvilinear portion of the undulation can be provided in a zone of the ceiling wall of the tank which is crossed by a gas dome structure intended to extract the vapor phase from the space internal part of the tank towards a steam collector placed outside the tank.
  • the curvilinear portion of the undulation can be provided in a zone of the ceiling wall of the tank which is equipped with a liquid dome structure comprising a cover from which a loading tower is suspended /unloading intended for loading liquefied gas into the tank and/or unloading it.
  • the technique described above for creating a tank wall can be used in different types of LNG tank in a land installation or in a floating structure such as an LNG ship or other.
  • a cutaway view of an LNG ship 70 shows a watertight 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 waterproof barrier intended to be in contact with the LNG contained in the tank, a secondary waterproof barrier arranged between the primary waterproof 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.
  • FIG 8 represents 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 mobile arm 74.
  • the mobile arm 74 carries a bundle of insulated flexible pipes 79 which can connect to the loading/unloading pipes 73.
  • the adjustable mobile arm 74 adapts to all LNG carrier templates.
  • a connection pipe not shown extends inside the tower 78.
  • the loading and unloading station 75 allows the loading and unloading of the LNG tanker 70 from or to the onshore installation 77.
  • the underwater pipe 76 allows the transfer of the liquefied gas between the loading or unloading station 75 and the onshore installation 77 over a long distance, for example 5 km, which makes it possible to keep the LNG ship 70 at a long distance from the coast during loading and unloading operations.
  • pumps on board the ship 70 and/or pumps fitted to the on-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)
  • General Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Water Supply & Treatment (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)

Claims (16)

  1. Gefäßwand (1) umfassend eine wärmeisolierende Barriere (2) und eine Dichtungsmembran (3), die auf der wärmeisolierenden Barriere (2) aufliegt, dadurch gekennzeichnet, dass die Dichtungsmembran (3) eine Welle mit einem gekrümmten Abschnitt (36) umfasst, der sich in einer gekrümmten Richtung (d1) entwickelt, und mindestens eine gekrümmte Verstärkungsvorrichtung (37), die im Inneren des gekrümmten Abschnitts (36) zwischen der Dichtungsmembran (3) und der wärmeisolierenden Barriere (2) derart angeordnet ist, dass diese den gekrümmten Abschnitt (36) verstärkt, wobei die gekrümmte Verstärkungsvorrichtung (37) eine Vielzahl von Verstärkungsabschnitten (42, 43, 44) umfasst, die jeweils eine profilierte Form aufweisen, die sich in einer geradlinigen Richtung (d2, d3, d4) entwickelt, wobei die gekrümmte Verstärkungsvorrichtung (37) außerdem ein Verbindungsorgan (45) umfasst, das die Verstärkungsabschnitte (42, 43, 44) verbindet, um sie in einer Position zu halten, in der die geradlinige Richtung (d2, d3, d4) eines jeden der Verstärkungsabschnitte (42, 43, 44) in der Projektion auf eine Ebene parallel zur Wand des Gefäßes (1) tangential zu der gekrümmten Richtung (d1) orientiert ist.
  2. Gefäßwand (1) nach Anspruch 1, wobei jeder Verstärkungsabschnitt (42, 43, 44) eine Öffnung (26) umfasst, durch die das Verbindungsorgan (45) hindurchgesteckt ist.
  3. Gefäßwand (1) nach Anspruch 2, wobei jeder Verstärkungsabschnitt (42, 43, 44) eine Sohle (20) umfasst, die auf der wärmeisolierenden Barriere (2) aufliegt.
  4. Gefäßwand (1) nach Anspruch 3, wobei jede Sohle (20) zwei Seitenwände (24, 25) und eine ebene untere Wand (22), die auf der wärmeisolierenden Barriere (2) aufliegt und die beiden Seitenwände (24, 25) verbindet, umfasst, wobei die Öffnung (26) durch die Seitenwände (24, 25) und die untere Wand (22) definiert ist.
  5. Gefäßwand (1) nach einem der Ansprüche 1 bis 4, wobei das Verbindungsorgan (45) eine Schiene ist, die einen gekrümmten Teil (50) aufweist, der sich entlang der gekrümmten Richtung (d1) des gekrümmten Abschnitts (36) erstreckt und eine gekrümmte Innenkante (51) und eine gekrümmte Außenkante (52) umfasst, die eine größere Krümmung als die der gekrümmten Innenkante (51) aufweist.
  6. Gefäßwand (1) nach Anspruch 5, wobei eine der gekrümmten Innenkanten (51) und Außenkanten (52) abwechselnd Vorsprünge (53) und Vertiefungen (54) aufweist, die eine Zackenlinie bilden, wobei jeder Vorsprung (53) in der Öffnung (26) eines der Verstärkungsabschnitten (42, 43, 44) gelagert ist.
  7. Gefäßwand (1) nach Anspruch 6, wobei die Zackenlinie in der gekrümmten Innenkante (51) der Schiene angeordnet ist.
  8. Gefäßwand (1) nach einem der Ansprüche 1 bis 7, wobei mindestens einer der Verstärkungsabschnitte (42, 43, 44) einen hohlen Mantel und sich schneidende Verstärkungsstege (27, 28) umfasst, die sich innerhalb des hohlen Mantels von einem Rand des hohlen Mantels zum anderen erstrecken.
  9. Gefäßwand (1) nach einem der Ansprüche 1 bis 8, wobei der gekrümmte Abschnitt (36) eine innere gekrümmte Kante (48) und eine äußere gekrümmte Kante (49) umfasst, die eine größere Krümmung als die innere gekrümmte Kante (48) aufweist, und wobei mindestens einer der Verstärkungsabschnitte (42, 43, 44) zwei Enden (46, 47) aufweist, die jeweils in Bezug auf die geradlinige Richtung (d2, d3, d4) des Verstärkungsabschnitts geneigt sind, so dass sich der Verstärkungsabschnitt (42, 43, 44) von der inneren gekrümmten Kante (48) zur äußeren gekrümmten Kante (49) des gekrümmten Abschnitts (36) hin verbreitert.
  10. Gefäßwand nach einem der Ansprüche 1 bis 9, wobei die Welle zwei geradlinige Abschnitte umfasst, die auf beiden Seiten des gekrümmten Abschnitts (36) in Verlängerung des gekrümmten Abschnitts (36) angeordnet sind, wobei in jedem der beiden geradlinigen Abschnitte zwischen der Dichtungsmembran (3) und der wärmeisolierenden Barriere (2) ein Verstärkungselement (14) angeordnet ist, und wobei das Verbindungsorgan (45) in eine Öffnung (26) hindurchgesteckt ist, die in mindestens einem der Verstärkungselemente (14) angeordnet ist.
  11. Gefäßwand (1) nach einem der Ansprüche 1 bis 10, wobei der gekrümmte Abschnitt nahe einem Eckbereich der Gefäßwand (1) angeordnet ist.
  12. Gefäßwand (1) nach einem der Ansprüche 1 bis 10, wobei der gekrümmte Abschnitt nah eines singulären Bereichs der Gefäßwand (1) angeordnet ist, in dem die Planarität der Dichtungsmembran (3) unterbrochen ist.
  13. Wasserdichtes und wärmeisolierendes Gefäß, das mindestens eine Gefäßwand (1) nach einem der Ansprüche 1 bis 12 umfasst.
  14. Schiff (70) umfassend eine tragende Struktur und ein Gefäß (1) nach Anspruch 13, das in der tragenden Struktur verankert ist.
  15. Transfersystem für ein Fluid, wobei das System das Schiff (70) nach Anspruch 14, isolierte Leitungen (73, 79, 76, 81), die so angeordnet sind, dass sie das im Rumpf des Schiffes (70, 170) installierte Gefäß (71) mit einer schwimmenden oder landgestützten Lagereinrichtung (77) verbinden, und eine Pumpe umfasst, die ein Fluid durch die isolierten Leitungen von oder zu der schwimmenden oder landgestützten Lagereinrichtung zu oder von dem Gefäß des Schiffes bewegt.
  16. Verfahren zum Be- oder Entladen eines Schiffes (70) nach Anspruch 14, wobei ein Fluid durch isolierte Leitungen (73, 79, 76, 81) von oder zu einer schwimmenden oder landgestützten Lagereinrichtung (77) zu oder von dem Gefäß (71) des Schiffes (70) geleitet wird.
EP19742454.2A 2018-07-13 2019-06-25 Behälterwand mit einer dichtmembran mit einer wellung mit einem verstärkten krummlinigen abschnitt Active EP3821167B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1856475A FR3083789B1 (fr) 2018-07-13 2018-07-13 Paroi de cuve comportant une membrane d'etancheite presentant une ondulation ayant une portion curviligne renforcee
PCT/FR2019/051559 WO2020012084A1 (fr) 2018-07-13 2019-06-25 Paroi de cuve comportant une membrane d'etancheite presentant une ondulation ayant une portion curviligne renforcee

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EP3821167A1 EP3821167A1 (de) 2021-05-19
EP3821167B1 true EP3821167B1 (de) 2024-05-29

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KR (1) KR102123185B1 (de)
CN (1) CN112534176B (de)
FR (1) FR3083789B1 (de)
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CN115234823B (zh) * 2022-07-07 2024-06-11 西安热工研究院有限公司 一种基于增强密封膜锚固端强度的重力压缩空气储气系统
CN116605357B (zh) * 2023-07-20 2023-10-24 中太(苏州)氢能源科技有限公司 一种用于液化气体储存舱内壁的部件

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FR2936784B1 (fr) * 2008-10-08 2010-10-08 Gaztransp Et Technigaz Cuve a membrane ondulee renforcee
FR2961580B1 (fr) * 2010-06-17 2012-07-13 Gaztransport Et Technigaz Cuve etanche et isolante comportant un pied de support
FR2963818B1 (fr) * 2010-08-11 2014-01-03 Gaztransp Et Technigaz Structure de paroi etanche
KR101337642B1 (ko) * 2011-12-16 2013-12-05 삼성중공업 주식회사 액화천연가스 저장 탱크 및 그의 제조방법
KR101337627B1 (ko) * 2011-12-16 2013-12-05 삼성중공업 주식회사 액화 천연 가스 저장 탱크의 1차 방벽용 보강 구조체
KR101349865B1 (ko) * 2012-04-06 2014-01-14 주식회사 티엠씨 액화천연가스 저장탱크의 1차 방벽용 보강 부재 고정 장치
KR101588661B1 (ko) * 2013-10-18 2016-01-27 삼성중공업 주식회사 화물창 및 이에 사용되는 방벽 보강부재
KR101617026B1 (ko) 2013-12-27 2016-04-29 삼성중공업 주식회사 액화가스 화물창
KR101697821B1 (ko) * 2014-10-21 2017-01-19 현대중공업 주식회사 액체화물 저장탱크 및 이를 구비한 해양구조물
FR3039248B1 (fr) * 2015-07-24 2017-08-18 Gaztransport Et Technigaz Cuve etanche et thermiquement isolante munie d'une piece de renfort

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CN112534176B (zh) 2022-05-10
WO2020012084A1 (fr) 2020-01-16
CN112534176A (zh) 2021-03-19
KR20200007674A (ko) 2020-01-22
FR3083789A1 (fr) 2020-01-17
EP3821167A1 (de) 2021-05-19
KR102123185B1 (ko) 2020-06-15
FR3083789B1 (fr) 2020-07-10
SG11202100246VA (en) 2021-02-25

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