Classifications

• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
  • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
  • F17C3/00—Vessels not under pressure
  • F17C3/02—Vessels not under pressure with provision for thermal insulation
  • F17C3/025—Bulk storage in barges or on ships
  • F17C3/027—Wallpanels for so-called membrane tanks
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
  • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
  • F17C2201/00—Vessel construction, in particular geometry, arrangement or size
  • F17C2201/01—Shape
  • F17C2201/0147—Shape complex
  • F17C2201/0157—Polygonal
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
  • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
  • F17C2201/00—Vessel construction, in particular geometry, arrangement or size
  • F17C2201/05—Size
  • F17C2201/052—Size large (>1000 m3)
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
  • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
  • F17C2203/00—Vessel construction, in particular walls or details thereof
  • F17C2203/03—Thermal insulations
  • F17C2203/0304—Thermal insulations by solid means
  • F17C2203/0358—Thermal insulations by solid means in form of panels
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
  • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
  • 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
  • F17C2260/013—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
  • F17C2260/00—Purposes of gas storage and gas handling
  • F17C2260/03—Dealing with losses
  • F17C2260/031—Dealing with losses due to heat transfer
  • F17C2260/033—Dealing with losses due to heat transfer by enhancing insulation
• • 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, with membranes, for storing and / or transporting fluid, such as a cryogenic fluid.
• Watertight and thermally insulating membrane tanks are used in particular for the storage of liquefied natural gas (LNG), which is stored at atmospheric pressure at about -162 ° C. These tanks can be installed on the ground or on a floating structure. In the case of a floating structure, the tank may be intended for the transport of liquefied natural gas or to receive liquefied natural gas used as fuel for the propulsion of the floating structure.
• LNG liquefied natural gas
• sealed and thermally insulating tanks for the storage of liquefied natural gas, integrated into a supporting structure, such as the double hull of a vessel for the transport of liquefied natural gas.
• a supporting structure such as the double hull of a vessel for the transport of liquefied natural gas.
• such tanks comprise a multilayer structure successively presenting, in the direction of the thickness, from the outside to the inside of the tank, a secondary thermal insulation barrier retained to the supporting structure, a waterproofing membrane. secondary against the secondary thermal insulation barrier, a primary thermal insulation barrier resting against the secondary waterproofing membrane and a primary waterproofing membrane resting against the primary thermal insulation barrier and intended to be in contact with the liquefied natural gas contained in the tank.
• the document WO2016 / 046487 describes a secondary thermal insulation barrier and a primary thermal insulation barrier formed of juxtaposed insulating panels.
• the secondary waterproofing membrane consists of a plurality of metal sheets having corrugations projecting outwardly of the tank and thus allowing the secondary sealing membrane to deform under the effect of thermal stresses and mechanical generated by the fluid stored in the tank.
• An inner face of the insulating panels of the secondary thermal insulation barrier has grooves receiving corrugations corrugated metal sheets of the secondary waterproof membrane. These undulations and these grooves form a mesh of channels developing along the walls of the tank.
• An idea underlying the invention is to provide a sealed and thermally insulating watertight membrane with corrugations in which the convection phenomena are reduced.
• an idea underlying the invention is to provide a sealed and thermally insulating tank limiting the presence of continuous circulation channels in the thermal insulation barriers in order to limit natural convection phenomena in said insulation barriers thermal.
• an idea underlying the invention is to provide such a vessel adapted to allow manufacturing tolerances and / or assembly of the various constituent elements of said vessel.
• the invention provides a sealed and thermally insulating fluid storage tank, in which a tank wall comprises at least one thermal insulation barrier and a sealing membrane, the sealing membrane having a a series of parallel corrugations having a longitudinal direction, and planar portions located between said corrugations, said corrugations projecting planar portions on a protruding side of the sealing membrane, a said thermal insulation barrier being located on the salient side of the waterproofing membrane,
• thermal insulation barrier comprising a series of parallel grooves in which the corrugations are housed
• a said groove has a width, taken along a direction of width perpendicular to the longitudinal direction of the corrugations, greater than the width, taken along said width direction, of the corrugation housed in said groove,
• the thermal insulation barrier further comprising a housing intersecting said groove and having a width greater than the width of the groove, the tank further comprising a shutter arranged in the housing, the shutter having a width greater than the width of the groove, and preferably less than a width of the housing, the shutter having a clearance configured to accommodate the corrugation,
• the shutter being arranged in the housing so that the clearance is housed in the groove and the corrugation is housed in the clearance and so that the shutter closes a portion of the groove located on the protruding side of the membrane by creating a pressure drop for a flow flowing in the groove.
• such a tank offers the possibility of sealing flexibly grooves hosting the corrugations of the membrane despite a tolerance affecting the position of the corrugations in the grooves.
• Such tolerance may arise in particular from the manufacture and assembly of the corrugations in the grooves.
• the groove portion between the convex side of the corrugation and the bottom of the groove, formed by the thermal insulation barrier, can be closed by the shutter for different positions of the ripple in the groove.
• the closure of said groove portion can be obtained despite the uncertainty of positioning of the corrugation in the groove related to manufacturing and / or mounting tolerances.
• the width of the shutter makes it possible to close the groove regardless of the position of the corrugation in the groove.
• the width of the shutter makes it possible to position said portion of the shutter in the groove portion without requiring modification of the shutter, in particular without modifying its resistance to the flow of gas.
• the shutter makes it possible to limit the formation of flows in the channels of the thermal insulation barrier, in particular the formation of thermosyphons between these channels and any flow channel situated closer to the shell, for example a masticated space. between the thermal insulation barrier and the supporting structure.
• such a tank may comprise one or more of the following characteristics.
• the housing develops in a plane perpendicular to the longitudinal direction of the corrugation.
• the clearance of the shutter has a shape complementary to the shape of the corrugation.
• the clearance has a concave shape and the corrugation has a convex shape with substantially identical radii of curvature.
• the membrane is a corrugated metal membrane.
• the thickness of the shutter taken in the longitudinal direction of the corrugation is equal to the thickness of the housing in said longitudinal direction of the corrugation.
• a clearance between the housing and the shutter is adapted to allow the displacement of the shutter in the housing in the direction of width while preventing a flow of peripheral flow between the housing and the shutter.
• this game is plus or minus 0.1 mm.
• the depth of the shutter taken in a direction of thickness of the vessel wall is greater than or equal to the depth of the housing taken along said thickness direction of the vessel wall.
• the longitudinal direction of the corrugation comprises a vertical component in the terrestrial reference, that is to say in a direction of gravity.
• the shutter can be made of many materials.
• the shutter comprises an assembly of materials.
• the shutter comprises a material having a low coefficient of friction on its faces facing the housing.
• a low-friction material is for example polyethylene, polypropylene, polymethyl methacrylate (PMMA), polyvinyl chloride (PVC) or a plastic foam plastic.
• the shutter is made in a density foam correctly chosen to allow its deformation, for example expanded polystyrene density 10 to 30kg / m A 3.
• the thermal insulation barrier comprises a plurality of juxtaposed insulating elements held against a supporting wall.
• a plurality of insulating elements each comprise a respective groove portion, said insulating elements being aligned so that the groove portions of said aligned insulating elements together form the groove in which the corrugation is housed.
• At least one insulating element comprises a plurality of groove portions housing corrugations distinct from the corrugation series.
• a plurality of shutters is arranged on said at least one insulating member so as to obstruct respective groove portions.
• the housing is formed in an insulating element.
• the shutter can be arranged in the prefabricated insulating element, prior to installation in the tank.
• a tank is simple and fast manufacturing.
• the housing can be made in the insulating element in many ways. According to one embodiment, the housing is made by machining in the insulating element. According to one embodiment, the housing is made by end milling by means of a two-size milling cutter. According to one embodiment, the housing is made by rolling milling with a milling cutter of diameter adapted to three sizes.
• the housing is formed in a gap between two adjacent insulating elements.
• the shutter does not require modifications of the insulating elements to be housed in the tank.
• the insulating elements and therefore the tank are simple to manufacture.
• the shutter is fixed on one side of an insulating element.
• an insulating pad is arranged in the gap between the two adjacent insulating elements, said insulating pad forming a bottom of the housing.
• Such a tank has good insulating characteristics.
• the housing for the shutter is thus simple to achieve.
• the depth of the shutter taken in a thickness direction of the vessel wall is greater, preferably slightly greater, for example of the order of 1 to 3 mm, at the depth of the housing taken. in said direction of thickness of the vessel wall before installation of the waterproofing membrane.
• the shutter has a depth such that its upper surface protrudes 1 to 3 mm from the upper surface of the insulating element when it is arranged in the housing, on the surface of the insulating padding, before introduction of the waterproofing membrane.
• the insulating padding is compressible. According to one embodiment, the insulating padding is compressed by the shutter when the corrugation bears in the release of the shutter.
• the shutter comprises a lower portion in contact with a bottom of the housing made of a rigid material, preferably with a low coefficient of friction to allow the sliding of the shutter in the housing.
• the shutter comprises a locally deformable portion, the corrugation being supported on the locally deformable portion.
• the lower portion of the shutter in contact with the bottom of the housing is made of a material selected from the group of material consisting of polypropylene, polymethyl methacrylate, polyvinyl chloride, polyethylene, synthetic foam plastic or their combinations.
• the locally deformable portion is made of a material selected from the group of materials consisting of materials fibrous, glass wool, melamine foam, soft polyurethane foam or their combinations.
• the pressure drop in the channel formed by the groove can be controlled.
• a locally deformable portion does not seal the groove and allows the passage of gas in the channel while causing a significant loss of pressure preventing flow and convection phenomena.
• a locally deformable portion allows the shutter to marry at best the profile of the corrugation.
• a locally deformable shutter makes it possible to accommodate by local deformation manufacturing tolerances of the various elements with which it cooperates.
• the shutter comprises a band of compressible material on its upper face, that is to say on the face vis-à-vis the sealing membrane.
• this band is an attached band.
• such a strip has a thickness of 1 to 2 mm.
• such a strip is for example of fibrous material, melamine foam or other.
• this band has dimensions substantially equal to the dimensions of the upper face of the shutter so as not to create parasitic flow bypass.
• the upper face of the shutter has a profile promoting local deformation, for example a sawtooth profile perpendicular to the longitudinal direction of the corrugation.
• the corrugation has a first lateral surface inclined with respect to a direction of thickness of the tank wall, the shutter having a second surface inclined with respect to said thickness direction of the tank so that slide the shutter into the width of the housing when the corrugation is inserted into the groove.
• the positioning of the undulation in the shutter release is achieved automatically when inserting the corrugation in the groove.
• the cooperation between the inclined surface of the corrugation and the inclined surface of the clearance makes it possible to simply and quickly impose a displacement of the shutter in the housing in order to position the clearance properly to receive the ripple.
• these characteristics allow the displacement of the shutter without generating on the high stress undulation may cause deformation of said corrugation.
• the width of the shutter is greater than or equal to the width of the corrugation plus twice the difference in width between the groove and the corrugation.
• the shutter has a width adapted to close the groove portion between the corrugation and the thermal insulation barrier for any position of the corrugation in the groove.
• the width of the shutter makes it possible to close said portion of the groove even when the corrugation is in an extreme lateral position in the groove due to manufacturing and / or assembly play.
• the shutter is housed in the housing with a degree of freedom in displacement in the direction of width.
• the shutter is housed in the blocked housing in displacement in the thickness direction of the tank wall between the sealing membrane and the thermal insulation barrier.
• the shutter has a fixing member in the housing adapted to block said moving shutter in the direction of thickness of the vessel wall and to allow its displacement in the direction of width in the housing.
• the fixing member is composed of at least two hooks fixed in at least one insulating block.
• the shutter comprises a blade housed, for example in force, between one of the insulating elements forming the gap and the insulating padding so as to retain the shutter in the thickness direction of the tank.
• the clearance forms a cam surface along which the ripple slides when positioning the ripple in the groove.
• the longitudinal direction of the corrugation comprises a vertical component relative to the terrestrial reference, that is to say a component according to the direction of earthly gravity.
• the tank comprises a row of housings, said housing of the row of housing intersecting a respective groove of the series of grooves, said housing having a width greater than the width of said respective grooves, the vessel further comprising a row of shutters arranged in a respective housing, said shutters having a width greater than the width of the groove cut by said respective housing and less than a width of said housing, the shutters having a clearance configured to accommodate the corresponding corrugation, the shutters being arranged in said housing so that the clearance is housed in the corresponding groove and that the corrugation is accommodated in said clearance and so that the shutter closes a portion of said groove located on the protruding side of the diaphragm; sealing by creating a pressure drop for a flow circu in said groove.
• the series of parallel corrugations of the sealing membrane is a first series of parallel corrugations of the sealing membrane and in which the longitudinal direction of said corrugations said first series of corrugations is a first direction.
• the sealing membrane further comprising a second series of corrugations perpendicular to the first series, a longitudinal direction of the corrugations of the second series of corrugations forming a second direction perpendicular to the first direction, the shutters of the first row; shutters being arranged between two adjacent corrugations of the second series of corrugations.
• the tank comprises a plurality of rows of shutters housed in respective housings, said rows of shutters being arranged at regular intervals in the longitudinal direction of the corrugations. Thanks to these characteristics, their effect accumulates and creates series pressure losses in the grooves housing the corresponding corrugations.
• the tank comprises a plurality of rows of shutters housed in respective housings.
• the rows of shutters are arranged at regular intervals in the longitudinal direction of the corrugations so that their effect is cumulative and creates losses in series in the grooves housing the corresponding corrugations.
• the shutters of two rows of shutters are spaced in the longitudinal direction of the corrugations by a distance of 3m.
• the shutters of two rows of shutters are spaced in the longitudinal direction of the corrugations by a distance of 1 m.
• At least one shutter is arranged in the tank wall in order to close a groove portion housing a corrugation of the second series of waves.
• the sealing membrane is carried by the thermal insulation barrier, the corrugations projecting towards the carrier wall.
• the waterproofing membrane is a secondary waterproofing membrane
• the thermal insulation barrier is a primary thermal insulation barrier
• the corrugations projecting towards the inside of the tank
• the tank further comprises a secondary thermal insulation barrier retained on the carrier wall and carrying the secondary sealing membrane, the primary thermal insulation barrier being carried by the secondary sealing membrane
• the vessel further comprising a membrane primary seal carried by the primary thermal insulation barrier and intended to be in contact with the fluid in the tank, the grooves being formed on a lower surface of the primary thermal insulation barrier.
• the waterproofing membrane is a primary waterproofing membrane
• the thermal insulation barrier is a primary thermal insulation barrier
• the corrugations projecting towards the outside of the tank
• the vessel further comprises a secondary thermal insulation barrier retained on the carrier wall and carrying a secondary sealing membrane, the primary thermal insulation barrier being carried by the waterproofing membrane secondary, the primary sealing membrane being carried by the primary thermal insulation barrier and intended to be in contact with the fluid in the tank, the grooves being formed on an upper surface of the primary thermal insulation barrier.
• Such a tank can be part of a land storage facility, for example to store LNG or be installed in a floating structure, coastal or deep water, including a LNG tank, 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 vessel for the transport of a cold liquid product comprises a double hull and a aforementioned tank disposed in the double hull.
• the invention also provides a method of loading or unloading such a vessel, in which a cold liquid product is conveyed through isolated pipes from or to a floating or land storage facility to or from the vessel vessel.
• the invention also provides a transfer system for a cold liquid product, the system comprising the abovementioned vessel, insulated pipes arranged to connect the vessel installed in the hull of the vessel to a floating storage facility. or terrestrial and a pump for driving a flow of cold liquid product through the insulated pipelines from or to the floating or land storage facility to or from the vessel vessel.
• FIG. 1 is a partial perspective view of a thermal insulation wall barrier of a sealed and thermally insulating tank wall;
• FIG. 2 is a view from above of an insulating element of the thermal insulation barrier of FIG. 1;
• FIG. 3 is a partial sectional view of a thermal insulation barrier on which a corrugated waterproofing membrane with a corrugation housed in a groove of the thermal insulation barrier and illustrating different possible positions of the corrugation is based. in the groove;
• FIG. 4 is a partial perspective view of a thermal insulation barrier on which a sealing membrane rests and comprising a shutter according to a first embodiment of the invention
• FIG. 5 is a schematic perspective view of a shutter that can be used in the thermal insulation barrier of FIG. 4;
• FIG. 6 is a schematic top plan view of a vessel wall thermal insulation barrier illustrating an array of grooves for receiving sealing membrane corrugations and rows of shutters arranged in said barrier. thermal insulation ;
• FIG. 7 is a partial schematic perspective view of a thermal insulation barrier on which a sealing membrane rests and comprising a shutter according to a second embodiment
• FIG. 8 is a schematic perspective view of a thermal insulation barrier on which a sealing membrane rests and comprising a shutter according to a third embodiment
• FIG. 9 is a schematic perspective view of a thermal insulation barrier on which a sealing membrane rests and comprising a shutter according to a fourth embodiment prior to its mounting in the thermal insulation barrier;
• FIG. 10 is a view similar to FIG. 9 showing the thermal insulation barrier after mounting the shutter in the thermal insulation barrier;
• Figure 1 1 is a partial sectional view of a vessel wall having shutters according to a fifth embodiment
• FIG. 12 is a sectional view of a detail of the tank wall of FIG. 11 at a shutter of the tank wall;
• Figure 13 is a schematic cutaway representation of a vessel tank LNG tank with a sealed and thermally insulating tank and a loading / unloading terminal of the tank.
• FIG. 14 is a plan view of a heat insulating barrier insulating panel of a bottom wall of a sealed and thermally insulating tank schematically illustrating two rows of shutters arranged in said insulating panel.
• a sealed and thermally insulating tank for the storage and transport of a cryogenic fluid for example Liquefied Natural Gas (LNG) comprises a plurality of tank walls each having a multilayer structure.
• LNG Liquefied Natural Gas
• Such a tank wall comprises, from the outside to the inside of the tank, a secondary thermal insulation barrier anchored to a bearing structure by secondary holding members, a secondary sealing membrane carried by the barrier of secondary thermal insulation, a primary thermal insulation barrier anchored to the secondary thermal insulation barrier and a primary waterproofing membrane carried by the primary thermal insulation barrier and intended to be in contact with the cryogenic fluid contained in the tank.
• the supporting structure may in particular be a self-supporting metal sheet or, more generally, any type of rigid partition having suitable mechanical properties.
• the supporting structure may in particular be formed by the hull or the double hull of a ship.
• the carrier structure has a plurality of walls defining the general shape of the vessel, usually a polyhedral shape. Some tanks may also have only one thermal insulation barrier and a single waterproofing membrane, for example for the storage of LPG.
• FIG. 1 shows a portion of thermal insulation barrier, for example a secondary thermal insulation barrier, of such a sealed and thermally insulating tank wall for storing a fluid.
• thermal insulation barrier for example a secondary thermal insulation barrier
• This thermal insulation barrier comprises a plurality of insulating panels 1 juxtaposed and anchored to the supporting structure.
• the insulating panels 1 have substantially a rectangular parallelepiped shape.
• Figure 2 illustrates such an insulating panel 1 in plan view.
• An insulating panel 1 can be made of various materials or combinations of materials, including plywood, polymer foam, fiber-filled polymer foam.
• the insulating panel has one or more metal plates fixed on its inner face to be able to weld corrugated metal sheets of waterproofing membrane.
• the insulating panels 1 each comprise a layer of insulating gasket 2, for example an insulating polymer foam 2, sandwiched between an internal rigid plate 3 and an external rigid plate 4.
• the rigid plates, internal 3 and outer 4, are, for example, plywood boards glued to said layer of insulating polymer foam 2.
• the insulating polymer foam 2 may in particular be a polyurethane-based foam.
• the polymer foam 2 is advantageously reinforced by glass fibers contributing to reducing its thermal contraction.
• the insulating panels 1 are juxtaposed in parallel rows and separated from each other by interstices 5 guaranteeing a functional assembly play.
• the interstices 5 are filled with a heat-insulating lining 6, shown in FIGS. 7 to 10.
• the heat-insulating lining 6 is advantageously made of a porous material so as to avoid the formation of free spaces in the thermal insulation barrier without completely prohibiting a flow of gas in the interstices 5 between the insulating panels 1, for example a circulation of inert gas, such as nitrogen.
• the heat-insulating lining 6 is for example made of glass wool, rockwool or open-cell flexible synthetic foam.
• the interstices 5 have, for example, a width of the order of 10 to 60 mm, in particular 30 mm.
• the inner plate 3 has two series of grooves 7, 8, perpendicular to each other, so as to form a network of grooves.
• Each of the series of grooves 7, 8 is parallel to two opposite sides of the insulating panels 1.
• the grooves 7, 8 are intended for the reception of corrugations 9, represented for example in FIGS. 3 and 4, projecting outwardly of the tank, formed on metal sheets 10 of the sealing membrane.
• the inner plate 3 has three grooves 7 extending in the longitudinal direction of the insulating panel 1 and nine grooves 8 extending in the transverse direction of the insulating panel 1.
• the inner plate 3 is equipped with metal plates 1 1, 12 for anchoring the edge of the corrugated metal sheets 10 of the waterproofing membrane on the insulating panels 1.
• the metal plates 1 1, 12 extend according to two perpendicular directions which are each parallel to two opposite sides of the insulating panels 1.
• the metal plates 1 1, 12 are fixed on the inner plate 3, by screws, rivets or staples, for example.
• the metal plates 1 1, 12 are placed in recesses formed in the inner plate 3 so that the inner surface of the metal plates 1 1, 12 is flush with the inner surface of the inner plate 3.
• the inner plate 3 has a inner surface which is substantially flat, out of any singular areas such as grooves 7, 8 or countersinks for housing the metal plates 1 1, 12.
• the metal plates 1 1 and 12 as shown are an illustrative example. These metal plates can be arranged in numbers, relative dimensions and positions different from those shown.
• the inner plate 3 may also be equipped with threaded studs 13 protruding towards the inside of the tank, and intended to ensure the fixing of a primary thermal insulation barrier on the insulating panels 1.
• the metal studs 13 pass through of orifices formed in the metal plates 1 1, 12.
• the sealing membrane comprises a plurality of corrugated metal sheets 10 each having a substantially rectangular shape.
• Each corrugated metal sheet 10 has a first series of parallel corrugations 9 extending in a first direction and a second series of parallel corrugations 9 extending in a second direction.
• the directions of the two sets of corrugations 9 of each corrugated metal sheet 10 are perpendicular.
• These corrugations 9 project outwardly of the vessel, that is to say in the direction of the carrier structure.
• the corrugated metal sheet 10 comprises between the corrugations 9 a plurality of flat surfaces.
• the corrugations 9 corrugated metal sheets 10 are housed in the grooves 7, 8 formed in the inner plate 3 of the insulating panels 1. Alternatively and not shown, corrugations 9 can also be housed in the interstices between insulating blocks.
• the corrugated metal sheets 10 are, for example, made of Invar®: that is to say an alloy of iron and nickel whose expansion coefficient is typically between 1.10 -6 and 2.10 6 K 1 , or in a high manganese iron alloy whose expansion coefficient is typically of the order of 7.10 -6 K 1 .
• the corrugated metal sheets 10 may also be made of stainless steel or aluminum.
• the grooves 7, 8 are sized to form an adjustment zone of the arrangement of the corrugations 9 in the tank.
• these grooves 7, 8 must be dimensioned to allow dimensional variations of the corrugations 9 related to the manufacturing tolerances of said corrugations 9 in the corrugated metal sheets 10.
• these dimensioning must take into account the positioning tolerances of the panels. insulators 1 and corrugated metal sheets 10 relative to each other.
• FIG. 3 illustrates a central position 35 and extreme positions 34 defining a range of possible positions of a corrugation 9 housed in a groove 7 or 8.
• the groove 7 or 8 is dimensioned so as to have a width 14 , taken in a direction perpendicular to a longitudinal direction 15 of the corrugation 9 and parallel to an inner face 16 of the inner plate 3, greater than or equal to a width 17 of the corrugation 9 along said direction, increased by one dimension predetermined tolerance corresponding to twice the positioning tolerance of the corrugation 9 in the groove 7 on either side of the central position 35.
• grooves 7, 8 Due to these dimensions, a space remains in the grooves 7, 8 between the thermal insulation barrier and the sealing membrane. These grooves 7, 8 could therefore constitute a network of traffic channels. Such channels developing continuously between the waterproofing membrane and the thermal insulation barrier throughout the tank wall would promote convection movements, particularly on the walls of tanks having a significant vertical component such as the walls of the tank. transverse tanks. Such a network of continuous channels could generate thermosiphon phenomena favoring heat transfer by gas convection in the thermal insulation barrier.
• One aspect of the invention starts from the idea of preventing these convection movements in the walls of the tank.
• one aspect of the invention starts from the idea of limiting the length of the channels formed by the grooves 7, 8 of the thermal insulation barrier.
• shutters 18 are inserted in one, some, or all grooves 7, 8 of the thermal insulation barrier. These shutters 18 are arranged in the grooves 7, 8 to be arranged between the sealing membrane and the thermal insulation barrier.
• Figure 4 schematically illustrates a portion of an insulating panel at a groove 7 in which is housed a corrugation 9 of the sealing membrane and having a shutter 18 according to the first embodiment.
• the insulating panel 1 comprises a housing 19 in which is housed the shutter 18 with freedom of movement.
• This housing 19 is growing perpendicular to the longitudinal direction 15 of the corrugation 9.
• a width 20 of the housing 19 taken in the width direction of the groove 7 is greater than the width 14 of the groove 7.
• the groove 7 has inclined side walls substantially parallel to the corrugation 9.
• the width 20 of the housing 19 is greater than the maximum width 14 of the groove 7, that is to say at the junction between the groove 7 and the inner face 16 of the inner plate 3.
• This housing 19 passes through the groove 7.
• the housing 19 has a common central portion with the groove 7 and two lateral portions each opening into the groove 7 on either side ripple 9.
• This housing 19 can be made in many ways in the insulating panel 1, for example by machining, milling or other.
• the shutter 18 here has a generally flat shape.
• a central portion of the shutter 18 has a clearance 21.
• This clearance 21 has a shape complementary to the convex face of the corrugation 9. More particularly, the clearance 21 is of concave shape and has a concavity whose radius of curvature is preferably identical to the radius of curvature of the corrugation 9.
• an internal face of the shutter takes the form of the sealing membrane in the groove 7.
• the shutter 18 has a thickness in the longitudinal direction 15 of the corrugation 9 substantially equal to that of the housing 19 but without tightening so that the shutter 18 can easily be moved in the housing 19.
• the shutter 18 has for example a thickness between 5mm and 30mm, preferably between 10mm to 12mm.
• the shutter 18 has a depth taken in a direction of thickness of the vessel wall corresponding substantially to the depth in this direction of the housing 19. In other words, with the exception of the clearance 21, the shutter is developed over the entire depth of the groove 7 taken in the thickness direction of the vessel wall.
• the adjustment between the housing 19 and the shutter 18 in the longitudinal direction 15 of the corrugation 9 is sufficient to allow movement of the shutter 18 in the housing 19 in the width direction of the housing 19 without allowing a penalizing peripheral flow.
• this adjustment is able to limit or block the movement of the shutter 18 under its own weight.
• the game is for example of the order of plus or minus 0.1 mm.
• the shutter 18 may be made of a material or an assembly of different materials.
• the shutter 18 is made of a single material. Such a material is chosen so as to allow sliding movement of the shutter 18 in the housing 19.
• a material is for example a plastic material such as a plastic foam, polyvinyl chloride (PVC), polymethacrylate methyl (PMMA), polyethylene (PE), polypropylene (PP) or polystyrene (PS) expanded or not.
• the shutter 18 is made by an assembly of material, for example based on a plastic material covered with a layer of porous material on its face cooperating with the sealing membrane.
• a porous material is, for example, glass wool, melamine foam or felt.
• Such a layer of porous material allows the shutter 18 to let an inert gas flow while generating a pressure drop of the flows.
• the shutter 18 can be coated on its different faces facing the walls of the housing 19 of a material having a low coefficient of friction relative to the material forming the housing 19.
• this coating can be made from a material plastic such as plastic foam, polyvinyl chloride (PVC), polymethyl methacrylate (PMMA), polyethylene (PE), polypropylene (PP) or polystyrene (PS) expanded or not.
• PVC polyvinyl chloride
• PMMA polymethyl methacrylate
• PE polyethylene
• PP polypropylene
• PS polystyrene
• the shutter 18 may also be made of a material whose mechanical strength and geometry allow the local deformation of its contact surface with the housing 19 and / or the sealing membrane during its setting in position. Such a shutter 18 locally deformable makes it possible to accommodate the manufacturing tolerances of the housing 19 and / or the sealing membrane.
• the shutter 18 may be made of expanded polystyrene density 10 to 30kg / m 3 .
• a width 22 of the shutter 18, taken in the width direction of the housing 19, is between the width 20 of the housing 19 and the width 14 of the groove 7.
• the width 22 of the shutter 18 is greater or equal to width 14 of the groove 7 increased by twice the positioning tolerance of the corrugation 9 in the groove 7 on either side of the central position 35 of the corrugation 9 in the groove 7.
• the width 20 of the housing 19 is greater than or equal to the width 22 of the shutter 18 increased by twice said positioning tolerance of the corrugation 9 in the groove 7.
• the shutter 18 can be housed in the housing 19 in different positions along the width direction 20 of the housing 19. In addition, regardless of the position of the shutter 18 in the housing 19, the shutter 18 grows over the entire width 14 of the groove 7.
• the clearance 21 is centered in the width direction of the shutter 18 and the housing 19 is centered on the groove 7 in the width direction of the groove 7.
• the housing 19 is symmetrical with respect to the groove 7 and the shutter is symmetrical with respect to the clearance 21.
• the position of the clearance 21 in the width direction 22 of the shutter 18 and / or the position of the housing 19 according to the width direction 14 of the groove 7 may be different than those shown in Figure 4 while allowing positioning of said clearance 21 adapted to all possible positions of the corrugation 9 in the groove 7.
• the clearance can be arranged asymmetrically with respect to the shutter 18, the housing then having side portions asymmetrical with respect to the groove 7 so that the die 21 can take all possible positions in the groove 7 in the width direction of the groove 7.
• the shutter 18 is housed in the housing 19 in prefabrication, that is to say before the installation of the insulating panel 1 carrying the housing 19 in the carrier structure.
• the corrugated metal sheet 10 When installing the waterproofing membrane in the tank, the corrugated metal sheet 10 is positioned to accommodate the corrugation 9 in the groove 7.
• the complementary shape between the clearance 21 and the corrugation 9 allows the clearance to fulfill the cam surface function upon insertion of the corrugation 9 into the groove 7.
• the corrugation 9 thus has at least one inclined outer face, two in the illustrated embodiment, with respect to the inner face 16 of the inner plate 3 of the insulating panel 1.
• the clearance 21 has at least one inclined inner face, two in the embodiment shown, with respect to said inner face 16.
• the complementary shape between the clearance 21 and the corrugation 9 allows the shutter 18 to conform to the shape of the sealed membrane in the groove 7.
• the shutter 18 is developed throughout the portion of the groove 7 between the sealing membrane and a bottom of the groove 7 at the housing 19.
• the shutter 18 closes said portion of the groove 7 at the housing 19. It is not necessary that this shutter is completely waterproof.
• this shutter must create a pressure drop sufficient to prevent the flows that can be generated in the groove 7 by convection in the form of thermosiphon.
• FIG. 5 illustrates an alternative embodiment of the shutter 18 according to the first embodiment illustrated in FIG. 4.
• the profile of the shutter 18 intended to be in contact with the sealing membrane has a plurality 23.
• these ribs 23 develop on the internal face of the shutter 18 in the width direction 22 of the shutter 18. These ribs 23 promote the local deformation of the shutter 18. shutter 18, allowing a better cooperation between the inner face of the shutter 18 and the sealing membrane.
• a band 1 to 2 mm thick of compressible material is added on the inner face of the shutter 18.
• this band allows the shutter 18 to marry the best profile of the corrugation 9 and the sealing membrane with which it cooperates.
• the band has dimensions substantially equal to those of the inner face of the shutter 18 so as not to create parasitic flow bypass.
• FIG. 6 schematically represents a portion of thermal insulation barrier, for example a secondary thermal insulation barrier, of a tank wall and illustrates an example of arrangement of a plurality of shutters 18 in said barrier of FIG. thermal insulation.
• Shutters 18 are placed at regular intervals on a plurality of insulating panels 1 whose grooves 7, 8 could form flow channels in the vessel wall. More particularly, a shutter 18 is here positioned in all the grooves 7 crossing two adjacent grooves 32 of the series of grooves 8, said shutters 18 being positioned in said grooves 7 interposed between said adjacent grooves 32. In other words, a shutter 18 is positioned in the thermal insulation barrier in all the grooves 7 connecting two adjacent grooves 32 data.
• Such a row of shutters 18 thus does not allow a flow a possibility of bypassing a shutter 18 by temporarily borrowing one of the grooves 8 perpendicular.
• a row of shutters 18 is disposed aligned in a plane in the set of parallel grooves 7 intersecting said plane.
• such shutters 18 are implemented in all the grooves 7 or 8 having a vertical component according to the terrestrial reference system, for example the side walls, the cofferdams or chamfered walls of the tank. Similarly, such shutters 18 are advantageously positioned in the thermal insulation barrier of a bottom wall of the tank, and this in all the grooves 7 and 8.
• these shutters 18 are placed at a regular interval 33 along the grooves 7, 8 so that their effect is cumulative and created series pressure losses in the preferred direction of the flow.
• these shutters 18 may be arranged along said corrugations 9 every 3m see every 1 m.
• shutters 18 are for example arranged every 1 m.
• shutters 18 are arranged near the lower edge at the grooves 7, 8 having a vertical component.
• the distance between the shutter 18 of the heat-insulating lining 6 housed between two insulating panels 1 is not sufficient for a downward flow of the tank is formed between the shutter 18 and said insulating lining 6, limiting and the pressure that can be exerted on said insulating lining 6.
• FIG. 14 illustrates an exemplary arrangement of shutters 18 in the context of an insulating panel 1 integrated in a bottom wall of a tight and thermally insulating tank.
• shutters 18 are arranged in all the grooves 7, 8 formed by said insulating panel 1. These shutters 18 are aligned along two adjacent edges of the insulating panel 1, forming two rows of perpendicular shutters 18 having substantially the same thickness. in the insulating panel 1.
• the rows of shutters of said insulating panels 1 juxtaposed are aligned for forming a mesh of shutters in all the channels formed by the grooves 7, 8 of the different insulating panels 1
• the maximum spacing between two rows of shutters 18 is chosen in such a way that the pressure drop thus created at a determined speed and considered to be tolerable is greater than the hydrostatic head of the flow to be constrained.
• a pressure drop coefficient can be easily determined by testing, by establishing a flow in a shutter model, by varying the flow velocities and by measuring the pressure differential between downstream and upstream or numerically.
• the load can be calculated by considering the integral of the variation of the density p of the given fluid on the direction fixed by gravity in the considered circulation loop and to multiply it by the universal constant of gravitation.
• Fig. 7 shows a second embodiment. Elements identical or fulfilling the same function as elements described above with reference to FIGS. 1 to 6 carry the same reference.
• This second embodiment differs from the first embodiment in that the housings 19 are not formed in the insulating panels 1 but in the interstices 5 between two adjacent insulating panels 1.
• Such an embodiment has the advantage of not requiring machining of the insulating panel 1 in order to form the housing 19.
• the bottom of the housing 19 on which the shutter 18 rests is for example formed by the heat-insulating lining 6 housed in interstices 5.
• the corrugated metal sheet 10 is positioned on the insulating panel 1 prior to the installation of the shutter 18 in order to determine the position of the corrugation 9 in the corresponding groove 7, 8.
• the shutter 18 is fixed in the appropriate position on the corresponding side of the insulating panel 1.
• the shutter 18 is for example fixed by stapling, screwing or gluing at the side of the insulating panel 1.
• the shutter 18 has a thickness in the longitudinal direction 15 of the corrugation 9 less than the gap 5.
• Figure 8 illustrates a third embodiment. Elements identical or fulfilling the same function as elements described above with reference to FIGS. 1 to 6 carry the same reference.
• this third embodiment differs from the first embodiment in that the housing 19 is formed in the gap 5 between two insulating panels 1.
• the heat-insulating lining 6 has a recess 24 forming the bottom of the The recess 24 has width characteristics similar to the features described above for the width of the housing 19 according to the first embodiment.
• the shutter 18 is positioned on the heat-insulating lining 6 in the recess 24 without being fixed on the sidewall of the insulating panel 1. This shutter 18 may be positioned prior to the positioning of the corrugated sheets 10 on the thermal insulation barrier.
• the shutter 18 has a thickness in the longitudinal direction 15 of the corrugation 9 substantially equal to that of the gap 5, typically of the order of 30mm or 40mm.
• the heat-insulating lining 6 does not have a recess 24, the shutter 18 resting on an inner face of said heat-insulating lining 6.
• the shutter 18 when the shutter 18 is positioned in the 5 at the level of the groove 7, it protrudes beyond the inner faces of the insulating panels 1 forming said gap 5, for example of the order of 1 to 3 mm.
• the support of the corrugation 9 on the shutter 18 automatically positions the shutter 18 relative to the groove 7 as explained above. above.
• the support of the corrugation 9 on the shutter 18 compresses the heat-insulating lining 6 arranged under the shutter 18 so that the shutter 18 is flush with the inner face of the insulating panels 1 forming the gap 5.
• Figures 9 and 10 illustrate a fourth embodiment of the invention. Elements identical or fulfilling the same function as elements described above with reference to FIGS. 1 to 6 carry the same reference.
• This fourth embodiment differs from the third embodiment in that the shutter further comprises a blade 25 projecting from the outer face of the shutter 18. This blade 25 is arranged to extend a side face of the shutter 18 in the direction of the carrier wall.
• the blade 25 is inserted between the heat-insulating lining 6 and one of the insulating panels 1 forming the gap 5 in which is housed said heat-insulating lining 6.
• the insertion of the blade 25 between the heat insulating lining 6 and the insulating panel 1 makes it possible to press the shutter 18 against the sidewall of the insulating panel 1 while ensuring that said shutter 18 is held in position.
• the blade 25 advantageously has a clearance of a few degrees in order to make it easier. insertion on the one hand and contribute to the optimal plating of the shutter profile 18 on the surface of the sealing membrane on the other hand. Such a draft ensures that the position of the shutter 18 is maintained during the life of the tank.
• the fixing member is composed of at least two hooks fixed on at least one insulating block in order to block the displacement along the thickness of the insulating block or blocks while allowing a lateral displacement of the shutter 18.
• Figures 1 1 and 12 show a fifth embodiment of the invention suitable for a tank having a secondary thermal insulation barrier and a primary thermal insulation barrier. Elements identical or fulfilling the same function as elements described above with reference to FIGS. 1 to 6 carry the same reference.
• the vessel wall according to this fifth embodiment comprises a secondary waterproof membrane whose corrugations 9 protrude towards the interior of the vessel and resting on a secondary thermal insulation barrier.
• the primary thermal insulation barrier comprises a plurality of primary insulating panels 26 of substantially rectangular parallelepiped shape.
• the primary insulating panels 26 comprise any structure, for example a sandwich structure consisting of an insulating lining layer such as an insulating polymer foam layer 27 sandwiched between two rigid plates, internal 28 and outer 29, for example made of plywood.
• the primary waterproofing membrane is obtained by assembling a plurality of corrugated metal sheets 30.
• the grooves 7, 8 for accommodating the corrugations 9 are formed in the primary insulating panels 26. These grooves 7, 8 are formed in the outer rigid plate 29 of said primary insulating panels 26, and possibly also in the insulating lining of said panels primary insulators 26.
• this fifth embodiment differs from the first embodiment in that the housing 19 is formed in the primary insulating panel 26 to accommodate the shutter 18.
• Such housings 19 and shutters 18 also have sizing characteristics and positioning in the tank similar to those of the housing 19 and shutter 18 described above with reference to Figures 1 to 6 in the first embodiment.
• FIG. 12 illustrates a detail sectional view of the tank wall illustrated in FIG. 11 at a shutter 18 in a housing 19 and cutting a groove 7 housing a corrugation 9, said groove 7 cut by the housing 19. being shown in dashed lines in this figure 12.
• the technique described above for producing a sealed and thermally insulating tank can be used in various types of tanks, for example to form a tank of LNG or LPG in a land installation or in a floating structure such as a LNG tanker or other vessel comprising several waterproofing membranes or a single waterproofing membrane.
• a broken view of a LNG tank 70 shows a sealed and insulated tank 71 of generally prismatic shape mounted in the double hull 72 of the ship.
• the wall of the tank 71 comprises a primary sealed barrier intended to be in contact with the LNG contained in the tank, a secondary sealed barrier arranged between the primary waterproof barrier and the double hull 72 of the ship, 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.
• loading / unloading lines 73 arranged on the upper deck of the ship can be connected, by means of appropriate connectors, to a marine or port terminal to transfer a cargo of LNG from or to the tank 71.
• FIG. 13 represents an example of a marine 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 an arm mobile 74 and a tower 78 which supports the movable arm 74.
• the movable arm 74 carries a bundle of insulated flexible pipes 79 that can connect to the loading / unloading pipes 73.
• the movable arm 74 can be adapted to all gauges of LNG carriers .
• a connection pipe (not shown) extends inside the tower 78.
• the loading and unloading station 75 enables the loading and unloading of the LNG tank 70 from or to the shore facility 77.
• the underwater line 76 allows the transfer of the liquefied gas between the loading or unloading station 75 and the onshore installation 77 over a large distance, for example 5 km, which makes it possible to keep the tanker vessel 70 at great distance from the coast during the loading and unloading operations.
• pumps on board the ship 70 and / or pumps equipping the shore installation 77 and / or pumps equipping the loading and unloading station 75 are used.
• housings and shutters are described in the various embodiments above in the context of a waterproofing membrane.
• secondary whose corrugations are housed in grooves formed on an inner face of the secondary insulating panels or on an outer face of the primary insulating panels according to whether the corrugations are protruding towards respectively the outside of the tank or the inside of the tank.
• such grooves, housings and shutters can also be made and installed at an inner face of the primary insulating panels in the context of a primary sealing membrane having corrugations projecting outwardly of the vessel.
• such grooves, housings and shutters can also be made and installed at an inner face of insulating panels in the context of a vessel having only a single thermal insulation barrier and a single membrane of sealing having corrugations projecting outwardly of the vessel.

Applications Claiming Priority (2)

Publications (1)

Family

ID=61224190

Family Applications (1)

Country Status (8)

Families Citing this family (5)

Family Cites Families (12)

• 2017
  • 2017-11-27 FR FR1771267A patent/FR3074253B1/fr active Active
• 2018
  • 2018-11-26 EP EP18819543.2A patent/EP3717823A1/fr not_active Withdrawn
  • 2018-11-26 RU RU2020115462A patent/RU2764234C2/ru active
  • 2018-11-26 CN CN201880076476.XA patent/CN111406177B/zh active Active
  • 2018-11-26 SG SG11202004472PA patent/SG11202004472PA/en unknown
  • 2018-11-26 JP JP2020528856A patent/JP7145216B2/ja active Active
  • 2018-11-26 KR KR1020207017007A patent/KR102582364B1/ko active IP Right Grant
  • 2018-11-26 WO PCT/FR2018/052972 patent/WO2019102163A1/fr active Application Filing

Also Published As

Similar Documents

Legal Events