EP4083494A1 - Lageranlage für flüssiggas - Google Patents

Lageranlage für flüssiggas Download PDF

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Publication number
EP4083494A1
EP4083494A1 EP22169558.8A EP22169558A EP4083494A1 EP 4083494 A1 EP4083494 A1 EP 4083494A1 EP 22169558 A EP22169558 A EP 22169558A EP 4083494 A1 EP4083494 A1 EP 4083494A1
Authority
EP
European Patent Office
Prior art keywords
tank
welded
internal
fixing
storage installation
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP22169558.8A
Other languages
English (en)
French (fr)
Inventor
Erwan MICHAUT
Pierre HOUEL
David Huart
Emmanuel HIVERT
Mohamad Jaber
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Gaztransport et Technigaz SA
Original Assignee
Gaztransport et Technigaz SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Gaztransport et Technigaz SA filed Critical Gaztransport et Technigaz SA
Publication of EP4083494A1 publication Critical patent/EP4083494A1/de
Pending legal-status Critical Current

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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
    • 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
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B25/00—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby
    • B63B25/02—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods
    • B63B25/08—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods fluid
    • B63B25/12—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods fluid closed
    • B63B25/16—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods fluid closed heat-insulated
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B27/00—Arrangement of ship-based loading or unloading equipment for cargo or passengers
    • B63B27/24—Arrangement of ship-based loading or unloading equipment for cargo or passengers of pipe-lines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B27/00—Arrangement of ship-based loading or unloading equipment for cargo or passengers
    • B63B27/30—Arrangement of ship-based loading or unloading equipment for transfer at sea between ships or between ships and off-shore structures
    • B63B27/34—Arrangement of ship-based loading or unloading equipment for transfer at sea between ships or between ships and off-shore structures using pipe-lines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B73/00—Building or assembling vessels or marine structures, e.g. hulls or offshore platforms
    • B63B73/20—Building or assembling prefabricated vessel modules or parts other than hull blocks, e.g. engine rooms, rudders, propellers, superstructures, berths, holds or tanks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B73/00—Building or assembling vessels or marine structures, e.g. hulls or offshore platforms
    • B63B73/40—Building or assembling vessels or marine structures, e.g. hulls or offshore platforms characterised by joining methods
    • B63B73/43—Welding, e.g. laser welding
    • 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
    • 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
    • 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
    • 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
    • F17D1/14—Conveying liquids or viscous products by pumping
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17D—PIPE-LINE SYSTEMS; PIPE-LINES
    • F17D3/00—Arrangements for supervising or controlling working operations
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17D—PIPE-LINE SYSTEMS; PIPE-LINES
    • F17D3/00—Arrangements for supervising or controlling working operations
    • F17D3/01—Arrangements for supervising or controlling working operations for controlling, signalling, or supervising the conveyance of a product
    • 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
    • F17C2203/0329—Foam
    • F17C2203/0333—Polyurethane
    • 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
    • F17C2203/00—Vessel construction, in particular walls or details thereof
    • F17C2203/03—Thermal insulations
    • F17C2203/0375—Thermal insulations by gas
    • F17C2203/0379—Inert
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
    • F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
    • F17C2205/0352—Pipes
    • F17C2205/0364—Pipes flexible or articulated, e.g. a hose
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
    • F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
    • F17C2205/0379—Manholes or access openings for human beings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2209/00—Vessel construction, in particular methods of manufacturing
    • F17C2209/22—Assembling processes
    • F17C2209/221—Welding
    • 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 storage installations for liquefied gas comprising a sealed and thermally insulating tank, with membranes.
  • the invention relates to the field of sealed and thermally insulating tanks for the storage and/or transport of liquefied gas at low temperature, such as tanks for the transport of Liquefied Petroleum Gas (also called LPG) having for example a temperature between -50°C and 0°C, or for the transport of Liquefied Natural Gas (LNG) at around -162°C at atmospheric pressure.
  • LPG Liquefied Petroleum Gas
  • LNG Liquefied Natural Gas
  • the document KR20140088975 discloses a storage facility for liquefied gas comprising a support structure formed by the double hull of a ship and a sealed and thermally insulating tank which is housed inside the support structure.
  • the storage installation comprises a through structure intended to define a circulation path between the interior space of the tank and the exterior of the storage installation.
  • the through structure includes an outer barrel which passes through the outer shell of the double hull and which is welded to the inner hull of the double hull, an inner barrel which extends inside the outer barrel and is connected tightly to the primary sealing membrane of the tank and an insulating intermediate space arranged between the inner barrel and the outer barrel.
  • the outer barrel has at its upper end an assembly flange consisting of a flange folded outwards and receiving a removable cover.
  • the inner barrel as well as the insulating intermediate space do not extend to the upper end of the inner barrel and two pipes cross the outer barrel radially in an upper zone of the outer barrel, above the inner barrel and the insulating interspace.
  • the inner barrel is attached to the outer barrel at its upper end.
  • Such a through structure is not entirely satisfactory. Indeed, given its layout and its design, such a through structure is complex to assemble, requires a large space in the storage facility and does not make it possible to decouple the constraints linked to thermal contraction/expansion during the passage of gas liquefied so that the through structure of this document transmits these stresses directly to the load-bearing structure.
  • One idea underlying the invention is to simplify the through structure while improving its assembly to the supporting structure and to the tank.
  • Another idea at the base of the invention is to limit the propagation of the stresses linked to the thermal contraction/expansion of the crossing structure towards the load-bearing structure.
  • the through structure has been simplified in particular by having only one shaft and by reducing the number of elements to be assembled.
  • its size is reduced by the absence of an outer barrel covering the inner barrel, which facilitates its assembly and handling.
  • the fixing device makes it possible to absorb the stresses linked to the thermal contraction/expansion of the internal barrel during the passage of liquefied gas, which makes it possible to put less stress on the supporting structure and/or the through structure.
  • the thickness direction is thus defined as the thickness direction of the ceiling wall.
  • such an installation may comprise one or more of the following characteristics.
  • the fixing flange is flat.
  • the upper load-bearing wall comprises a plurality of load-bearing plates welded to each other, at least one load-bearing plate bordering said opening, the fixing collar being welded to said at least load-bearing plate.
  • the fixing flange is formed in the same plane as the at least one carrier plate bordering said opening.
  • the fixing flange is welded by overlapping with said at least one carrier plate.
  • the fixing collar is annular in shape and comprises an outer contour welded to the upper load-bearing wall of the load-bearing structure and an internal contour located at a distance from the internal shaft, the outer tube being welded to the fixing collar at a distance from the internal contour so that a fastening collar portion protrudes from the external tube in the direction of the internal shaft.
  • the fixing flange is formed by assembling several plates.
  • the outer tube and the inner shaft are coaxial, the outer tube being included in the direction of thickness between the fixing flange and the fixing ring.
  • the outer tube and/or the inner barrel are for example made using a rolled sheet.
  • the outer tube has an upper end welded to the fixing ring and a lower end welded to the fixing flange.
  • the fixing ring comprises an annular plate formed and welded all around the inner shaft, the annular plate being located in a plane parallel to the fixing collar, one end of the outer tube being welded to the annular plate .
  • the storage facility comprises a neutral gas supply pipe, the fixing device being crossed by the neutral gas supply pipe so as to connect the thermally insulating barrier with neutral gas.
  • the neutral gas supply line passing through the fixing device, makes it possible to avoid crossing the internal barrel, the upper load-bearing wall, and in the case where a secondary sealing membrane is present, without having to cross the secondary sealing membrane, making it possible to limit the number of crossings necessary to reach the thermally insulating barrier in order to produce a neutral atmosphere in this barrier.
  • the inert gas supply pipe passes through the fixing device at the level of the annular plate and of said fixing collar portion.
  • the inert gas supply pipe passes through the fixing device at the level of the external tube and of said fixing collar portion.
  • the annular plate is an internal annular plate and the fixing ring comprises an external annular plate formed and welded all around the internal barrel, the external annular plate being located in a plane parallel to the internal annular plate, the fixing ring comprising stiffeners fixed on the one hand to the internal annular plate and on the other hand to the external annular plate, the stiffeners being distributed all around the internal barrel so as to stiffen the fixing ring.
  • the sealing membrane is a primary sealing membrane and the thermally insulating barrier is a primary thermally insulating barrier, the ceiling wall comprising, in the direction of wall thickness from the outside towards the inside the tank, a secondary thermally insulating barrier fixed to the upper load-bearing wall, a secondary sealing membrane supported by the secondary thermally insulating barrier, said primary thermally insulating barrier supported by the secondary sealing membrane, and said sealing membrane primary sealing supported by the primary thermally insulating barrier.
  • the through structure comprises a connection collar located inside the tank and welded all around the internal barrel, the primary sealing membrane being interrupted at a distance from the internal barrel and being welded all around the connection flange via a connection plate.
  • the secondary sealing membrane is interrupted at a distance from the internal shaft, the sealing membrane being fixed to the fixing flange by means of a connection ring extending all around the internal shaft .
  • the storage installation comprises a circular stiffener which protrudes towards the outside of the tank from an outer surface of the fixing collar.
  • the circular stiffener and the connection ring are coaxial and of the same diameter, so that the circular stiffener forms the extension of the connection ring outside the vessel.
  • the through structure comprises a ceiling, the ceiling being fixed to one end of the internal barrel projecting outside the tank.
  • the ceiling is curved in shape.
  • the curved ceiling allows the through structure to better withstand the pressure inside the tank.
  • the tank is subjected during its use to an internal pressure of between 0 barg (1.01.10 5 Pa) and 3 barg (3.01.10 5 Pa).
  • the crossing structure comprises at least one pipe from among a liquefied gas loading pipe and a liquefied gas unloading pipe, the at least one pipe crossing the ceiling wall of the tank inside the internal shaft so as to have one end located inside the tank, the ceiling of the through structure being welded to the end of the internal shaft, the through structure forming a dome structure.
  • the internal shaft and the ceiling comprise an outer surface projecting from the upper load-bearing wall, said outer surface being at least partially, preferably totally, covered with insulating packing.
  • said at least one pipe passes through the internal shaft or the ceiling of the through structure.
  • said at least one conduit comprises a portion of conduit situated outside the through structure, said portion of conduit comprising an outer surface covered at least partially with insulating packing.
  • the stiffeners of the fixing ring are spaced from each other by insulating packing.
  • the ceiling is removably fixed, for example by screwing, to said end of the internal shaft, the through structure forming a manhole structure.
  • the internal shaft and the ceiling comprise an internal surface projecting from the upper load-bearing wall, said external surface being at least partially covered with insulating packing.
  • the internal surface of the ceiling is completely covered with insulating trim.
  • the ceiling of the manhole structure is crossed by at least one level sensor.
  • the crossing structure is a first crossing structure and the opening is a first opening
  • the storage installation comprises a second crossing structure passing through a second opening made in the ceiling wall and in the upper bearing wall, the second opening being remote from the first opening, the first through structure forming a dome structure and the second through structure forming a manhole structure.
  • the secondary thermally insulating barrier comprises a plurality of juxtaposed parallelepipedic insulating blocks and the secondary sealing membrane comprises a plurality of parallel strakes, a strake comprising a flat central portion resting on an upper surface of the insulating blocks of the secondary thermally insulating barrier and two raised edges protruding towards the primary waterproofing membrane with respect to the central portion, the strakes being juxtaposed in a repeated pattern and welded together in a sealed manner at the level of the raised edges, anchoring wings anchored to the insulating blocks of the secondary thermally insulating barrier being arranged between the juxtaposed strakes to retain the secondary sealing membrane on the secondary thermally insulating barrier.
  • the secondary sealing membrane is formed from a metal alloy having a thermal expansion coefficient of between 0.5 ⁇ 10 -6 and 7.5 ⁇ 10 -6 K -1 .
  • the primary sealing membrane is composed of corrugated stainless steel sheets assembled together so as to form a continuous layer of sheets, the continuous sheet of sheet having two series of mutually perpendicular corrugations.
  • the fastening device is made of stainless steel.
  • Such a storage installation can be an onshore storage installation, for example for storing LNG or be installed in a floating, coastal or deep-water structure, in particular an LNG carrier, a floating storage and regasification unit (FSRU), a floating remote production and storage unit (FPSO) and others.
  • FSRU floating storage and regasification unit
  • FPSO floating remote production and storage unit
  • Such a storage facility can also serve as a fuel tank in any type of ship.
  • a vessel for the transport of a cold liquid product comprises a double hull and an aforementioned storage installation arranged in the double hull.
  • the invention also provides a transfer system for a cold liquid product, the system comprising the aforementioned vessel, insulated pipes arranged so as to connect the tank installed in the hull of the vessel to an external storage installation floating or land-based and a pump for driving a flow of cold liquid product through the insulated pipes from or to the external floating or land-based storage installation to or from the ship's tank.
  • the invention also provides a method for loading or unloading such a ship, in which a cold liquid product is conveyed through insulated pipes from or to an external floating or terrestrial storage installation to or from the vessel's tank.
  • the terms "internal” and “external” designate relative positions of elements of the storage installation with respect to the interior of the tank, the so-called internal elements being closer to the interior of the tank than the so-called external elements.
  • the storage installation 71 for liquefied gas comprises a supporting structure 3, for example formed by the double hull 72 of a ship 70, as represented on the figure 8 , and a tank 1 which is housed inside the support structure 3, as shown in the figure 1 .
  • Tank 1 is a membrane tank for storing liquefied gas.
  • Vessel 1 has a multilayer structure, represented in particular by figure 5 , and comprising, from the outside inwards along a direction of wall thickness, a secondary thermally insulating barrier 2 comprising insulating elements resting against the supporting structure 3, a secondary sealing membrane 4 resting against the thermally insulating barrier secondary insulating barrier 2, a primary thermally insulating barrier 5 comprising insulating elements resting against the secondary sealing membrane 4 and a primary sealing membrane 6 intended to be in contact with the liquefied gas contained in the tank 1.
  • the primary sealing membrane 6 defines an internal space 7 intended to receive the liquefied gas.
  • such membrane tanks are described in particular in the patent applications WO14057221 , FR2691520 and FR2877638 aimed respectively at the Mark V ® , Mark III ® and NO96 ® technologies developed by the applicant.
  • the secondary sealing membrane 4 comprises a plurality of parallel strakes.
  • Each strake has a flat central portion resting on an upper surface of the insulating elements of the secondary thermally insulating barrier 2 and two raised edges projecting towards the primary sealing membrane 6 with respect to the central portion.
  • the strakes are juxtaposed in a repeated pattern and welded together tightly at the raised edges.
  • Anchor wings anchored to the insulating elements of the secondary thermally insulating barrier 2 are arranged between the juxtaposed strakes to retain the secondary sealing membrane 4 on the secondary thermally insulating barrier 2.
  • the primary sealing membrane 6 is composed of corrugated stainless steel assembled together to form a continuous layer of sheets.
  • the continuous sheet metal sheet has two series of mutually perpendicular corrugations.
  • the liquefied gas intended to be stored in the tank 1 can in particular be a liquefied natural gas (LNG), that is to say a gas mixture mainly comprising methane as well as one or more other hydrocarbons.
  • the liquefied gas can also be ethane or a liquefied petroleum gas (LPG), that is to say a mixture of hydrocarbons resulting from petroleum refining comprising essentially propane and butane.
  • the tank 1 is a polyhedral tank comprising in particular a ceiling wall 8 fixed to an upper load-bearing wall 9 of the load-bearing structure 3, and a bottom wall 10 fixed to a lower load-bearing wall 11 of the load-bearing structure 3.
  • the figure 1 represents a part of the storage installation 71 for which only a portion of the ceiling wall 8 and a portion of the corresponding bottom wall 9 have been represented.
  • the storage facility 71 comprises two through structures 12, 13 passing through openings 14, 15 made in the ceiling wall 8 and the upper load-bearing wall 9.
  • the first through structure is a dome structure 12 passing through of a first opening 14 and the second through structure is a manhole structure passing through a second opening 15.
  • the first opening 14 and the second opening 15 are spaced from each other as shown in the figure 1 .
  • the dome structure 12 makes it possible in particular to provide a sealed crossing of the ceiling wall 8 for the loading and unloading pipes 14, 15 of liquefied gas.
  • the manhole structure 13, for its part, makes it possible to maintain access for an operator who leads to the internal space 7 of the tank 1, for example for repair operations.
  • the loading line 14 and the unloading line 15 open into the internal space 7 of the tank 1 in order to load or unload the latter with liquefied gas. Also as visible on the figure 1 , there is provided a support foot 16 fixed to the bottom wall 10 and which is provided with a guide device 17 encircling one end of the loading pipe 14 and one end of the unloading pipe 15, so as to maintain the loading and unloading pipes 14, 15 in the axis of the dome structure 12.
  • the figures 2 and 3 represent in more detail the dome structure 12 while the figures 4 and 5 represent in more detail the manhole structure 13.
  • the traversing structures namely the dome structure 12 and the manhole structure 13, described below have substantially similar structures and differ from each other only in their use, the elements which pass through them , and potentially their sizing.
  • the manhole structure 13 is provided with a removable cover unlike the dome structure 12.
  • the traversing structure 12, 13 comprises an internal shaft 18 which extends along the wall thickness direction and which crosses the upper bearing wall 9 and the ceiling wall 8.
  • the internal shaft 18 is of cylindrical shape with section circular.
  • the inner barrel 18 is welded in a tight manner to the primary sealing membrane 6 and is welded to the upper load-bearing wall 9 by means of a fixing device 19.
  • the fixing device 19 enables the radial and longitudinal contraction of the inner barrel 18 to be authorized. the deformation of the inner barrel 18 by deforming itself so as to limit the stresses on the upper load-bearing wall 9, the welds or the inner barrel 18.
  • the fixing ring 20 comprises an internal annular plate 24 and an external annular plate 25 formed and welded all around the internal shaft 18.
  • the annular plates 24 are located in planes parallel to the fixing collar 21, and are spaced apart l each other.
  • One end of the outer tube 22 is welded to the inner annular plate 24.
  • the fixing ring 20 further comprises stiffeners 26 fixed on the one hand to the inner annular plate 24 and on the other hand to the outer annular plate 25.
  • the stiffeners 26 are for example plates formed in a plane orthogonal to the annular plates 24, 25, one side of the stiffeners being in contact with the internal shaft 18.
  • the stiffeners 26 are distributed all around the internal shaft 18 so as to stiffen the fixing ring 20.
  • the fixing flange 21 is made up of a flat plate formed in the same plane as at least one supporting sheet bordering the opening 23 and is welded to said at least one supporting sheet of the upper supporting wall 9.
  • the fixing flange 21 is annular in shape and has an outer contour welded to the upper load-bearing wall 9 and an internal contour located at a distance from the internal shaft 18.
  • the external tube 22 is welded to the fixing flange 21 at a distance from the internal contour so that a portion of fixing flange 27 protrudes from the outer tube 22 in the direction of the internal shaft 18. This facilitates the welding of the outer tube 22 on the fixing flange 21.
  • support cleats 39 are fixed all around the fixing flange 21 and project from the outer contour of the fixing flange 21, in a direction opposite to the internal barrel 18, in order to come to rest on the upper load-bearing wall 9 during the fixing of the through structure 12, 13.
  • the dome structure 12 comprises a ceiling 28 domed and welded to one end of the internal shaft 18 projecting outside the tank 1.
  • the ceiling 28 and the internal shaft 18 are inseparable from each other after fixing.
  • the internal shaft 18 and the ceiling 28 are covered with insulating packing 40 on their outer surface protruding from the upper load-bearing wall in order to form thermal continuity with the thermal insulation of tank 1.
  • the dome structure 12 comprises a loading line 29 and an unloading line 30 of liquefied gas.
  • the unloading pipe 30 passes through the ceiling 28 and continues inside the internal drum 18 in order to reach the internal space 7 of the tank 1.
  • the loading pipe 29 passes through the internal drum 18 and continues inside the internal barrel 18 in order to reach the internal space 7 of the tank.
  • the dome structure can also include level sensors 34 for measuring the level of liquefied gas in the tank 1 as well as a safety pipe 42.
  • the dome structure 12 may comprise, instead of the level sensors and the safety pipe, a liquefied gas spraying system making it possible to spray liquefied gas into the tank 1 before the loading of the tank 1 in order to cool the internal space 7, as well as a vapor evacuation pipe making it possible to evacuate the gas in the vapor phase from the internal space 7 in order to bring it for example towards the system of propulsion of a ship or a reliquefaction unit.
  • a liquefied gas spraying system making it possible to spray liquefied gas into the tank 1 before the loading of the tank 1 in order to cool the internal space 7, as well as a vapor evacuation pipe making it possible to evacuate the gas in the vapor phase from the internal space 7 in order to bring it for example towards the system of propulsion of a ship or a reliquefaction unit.
  • the manhole structure 13 comprises a domed ceiling 28 removably fixed to one end of the internal barrel 18 projecting outside the tank 1, for example using a fixing system 31 formed of a bolted strapping.
  • the ceiling 28 forms a cover of the manhole structure 13 located on the internal shaft 18.
  • the manhole structure 13 comprises a liquefied gas spraying system 32 for spraying liquefied gas into the tank 1 before loading the tank 1 in order to cool the internal space 7, as well as a pipe for evacuation of vapor 33 making it possible to evacuate the gas in the vapor phase from the internal space 7 in order to bring it, for example, to the propulsion system of a ship or a reliquefaction unit.
  • the spraying system 32 and the steam evacuation pipe 33 pass through the ceiling 28 by being integral there and continue in the internal barrel 18 to reach the internal space 7 of the tank 1. By removing the ceiling 28 during repair for example, the spray system 32 and the steam exhaust line 33 are also removed.
  • the manhole structure 13 includes level sensors 34 for measuring the level of liquefied gas in the tank 1 as well as a safety pipe (not shown).
  • the level sensors 34 pass through the ceiling 28 and are located partly inside the internal barrel 18.
  • the level sensors 34 are for example optical sensors, directed towards the bottom of the tank 1. By removing the ceiling 28 during repair, for example, the level sensors 34 are also removed.
  • the thermally insulating barriers 2, 5 of a tank 1 of liquefied gas are traversed by an inert gas such as nitrogen in order in particular to inert them and/or to detect a leak in one of the sealing membranes 4, 6.
  • an inert gas such as nitrogen
  • the storage installation 71 comprises at least one neutral gas supply line 35 which passes through the fixing device 19, as illustrated in figure 5 and 6 .
  • the inert gas supply pipe 35 passes through the fixing device 19 at the level of the internal annular plate 24 and the fixing flange portion 27, while in the variant illustrated in figure 7 , the inert gas supply line 35 passes through the fixing device 19 at the level of the outer tube 22 and the fixing collar portion 27.
  • the figure 6 also illustrates how the closures of the primary 6 and secondary 4 sealing membranes are made at the level of a through structure 12, 13.
  • the secondary sealing membrane 4 is interrupted at a distance from the internal barrel 18 and is fixed to the fixing flange 21 via a connection ring 36 all around the internal barrel 18.
  • the sealing membrane secondary 4 is therefore welded to the connection ring 36 all around the internal barrel 18.
  • a circular stiffener 37 protrudes outwards from the outer surface of the fixing flange 21.
  • the circular stiffener 37 extends in the extension of the connection ring 18.
  • the primary sealing membrane 6 is also interrupted at a distance from the internal barrel 18.
  • the through structure 12, 13 comprises a connection flange 38 located in the internal space 7 of the tank 1 and welded all around the internal barrel 18.
  • the primary sealing membrane 6 is welded directly to the connecting flange 38 all around the latter.
  • the membrane primary sealing 6 can be welded to the connection flange 38 via a connection plate.
  • insulating elements of the secondary thermally insulating barrier 2 and of the primary thermally insulating barrier 5 are shown schematically. These insulating elements can for example be formed from a layer of polymer foam, such as a fiber-reinforced polyurethane foam, on which can be fixed an upper plate and/or a lower plywood plate.
  • a cutaway view of an LNG carrier 70 shows a sealed and insulated tank 1 of generally prismatic shape mounted in the double hull 72 of the ship.
  • the double shell 72 comprises an inner shell and an outer shell.
  • the wall of the tank 1 comprises a primary waterproof membrane intended to be in contact with the LNG contained in the tank, a secondary waterproof membrane arranged between the primary waterproof membrane and the double hull 72 of the ship, and two insulating barriers arranged respectively between the primary waterproof membrane and the secondary waterproof membrane and between the secondary waterproof membrane 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 1.
  • the figure 8 represents an example of a maritime terminal comprising a loading and unloading station 75, an underwater pipeline 76 and an installation on land 77.
  • the loading and unloading station 75 is a fixed offshore installation comprising a mobile arm 74 and a tower 78 which supports the mobile arm 74.
  • the mobile arm 74 carries a bundle of insulated flexible pipes 79 which can be connected to the loading/unloading pipes 73.
  • the orientable mobile arm 74 adapts to all sizes of LNG carriers.
  • a connecting pipe, not shown, extends inside the tower 78.
  • the loading and unloading station 75 allows the loading and unloading of the LNG carrier 70 from or to the shore installation 77.
  • This comprises liquefied gas storage tanks 80 and connecting pipes 81 connected by the underwater pipe 76 to the loading or unloading station 75.
  • the underwater pipe 76 allows the transfer of the liquefied gas between the loading or unloading station 75 and the shore installation 77 over a long distance, for example 5 km, which makes it possible to keep the LNG carrier 70 at a great distance from the coast during loading and unloading operations.
  • pumps on board the ship 70 and/or pumps fitted to the shore installation 77 and/or pumps fitted to the loading and unloading station 75 are used.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Ocean & Marine Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Structural Engineering (AREA)
  • Architecture (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Optics & Photonics (AREA)
  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Water Supply & Treatment (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
EP22169558.8A 2021-04-29 2022-04-22 Lageranlage für flüssiggas Pending EP4083494A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR2104511A FR3122477B1 (fr) 2021-04-29 2021-04-29 Installation de stockage pour gaz liquéfié

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EP4083494A1 true EP4083494A1 (de) 2022-11-02

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EP (1) EP4083494A1 (de)
JP (1) JP2022171607A (de)
KR (1) KR20220149441A (de)
CN (1) CN115264367A (de)
FR (2) FR3122477B1 (de)
TW (1) TW202303032A (de)

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US3326141A (en) * 1963-11-26 1967-06-20 Gen Am Transport Heat-insulated railway tank cars
FR2691520A1 (fr) 1992-05-20 1993-11-26 Technigaz Ste Nle Structure préfabriquée de formation de parois étanches et thermiquement isolantes pour enceinte de confinement d'un fluide à très basse température.
FR2877638A1 (fr) 2004-11-10 2006-05-12 Gaz Transp Et Technigaz Soc Pa Cuve etanche et thermiquement isolee a elements calorifuges resistants a la compression
KR20120135496A (ko) * 2012-10-22 2012-12-14 삼성중공업 주식회사 가스 통로 구조
KR101359537B1 (ko) * 2013-01-18 2014-02-13 삼성중공업 주식회사 펌프타워 설치 구조체 및 이의 용접 방법
WO2014057221A2 (fr) 2012-10-09 2014-04-17 Gaztransport Et Technigaz Cuve étanche et thermiquement isolante comportant une membrane métallique ondulée selon des plis orthogonaux
KR20140088975A (ko) 2012-12-31 2014-07-14 대우조선해양 주식회사 리세스 타입 가스 돔 구조
KR20180065263A (ko) * 2016-12-07 2018-06-18 대우조선해양 주식회사 액화천연가스 저장탱크의 가스 돔 스프레이 장치
EP3361138A1 (de) * 2017-02-09 2018-08-15 Gaztransport Et Technigaz Gaskuppelstruktur für einen dichten und wärmeisolierten tank
WO2019030447A1 (fr) * 2017-08-07 2019-02-14 Gaztransport Et Technigaz Cuve etanche et thermiquement isolante comportant une structure de dome gaz

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NL124440C (de) * 1956-05-07
JPS6119592U (ja) * 1984-07-09 1986-02-04 石川島播磨重工業株式会社 二重殻タンクのマンホ−ル構造
DE3836071A1 (de) * 1988-07-06 1990-01-18 Lga Gastechnik Gmbh Liegender druckbehaelter zur lagerung von fluessiggasen
FR3052843B1 (fr) * 2016-06-15 2018-07-06 Gaztransport Et Technigaz Structure de dome gaz pour une cuve etanche et thermiquement isolante
JP2019039440A (ja) 2017-08-22 2019-03-14 三井Ｅ＆Ｓ造船株式会社 液化ガス貯蔵タンク構造、浮体構造物、貯蔵タンクの内部圧力の逃がし方法

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3326141A (en) * 1963-11-26 1967-06-20 Gen Am Transport Heat-insulated railway tank cars
FR2691520A1 (fr) 1992-05-20 1993-11-26 Technigaz Ste Nle Structure préfabriquée de formation de parois étanches et thermiquement isolantes pour enceinte de confinement d'un fluide à très basse température.
FR2877638A1 (fr) 2004-11-10 2006-05-12 Gaz Transp Et Technigaz Soc Pa Cuve etanche et thermiquement isolee a elements calorifuges resistants a la compression
WO2014057221A2 (fr) 2012-10-09 2014-04-17 Gaztransport Et Technigaz Cuve étanche et thermiquement isolante comportant une membrane métallique ondulée selon des plis orthogonaux
KR20120135496A (ko) * 2012-10-22 2012-12-14 삼성중공업 주식회사 가스 통로 구조
KR20140088975A (ko) 2012-12-31 2014-07-14 대우조선해양 주식회사 리세스 타입 가스 돔 구조
KR101359537B1 (ko) * 2013-01-18 2014-02-13 삼성중공업 주식회사 펌프타워 설치 구조체 및 이의 용접 방법
KR20180065263A (ko) * 2016-12-07 2018-06-18 대우조선해양 주식회사 액화천연가스 저장탱크의 가스 돔 스프레이 장치
EP3361138A1 (de) * 2017-02-09 2018-08-15 Gaztransport Et Technigaz Gaskuppelstruktur für einen dichten und wärmeisolierten tank
WO2019030447A1 (fr) * 2017-08-07 2019-02-14 Gaztransport Et Technigaz Cuve etanche et thermiquement isolante comportant une structure de dome gaz

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Publication number Publication date
CN115264367A (zh) 2022-11-01
FR3122476A1 (fr) 2022-11-04
TW202303032A (zh) 2023-01-16
FR3122477A1 (fr) 2022-11-04
KR20220149441A (ko) 2022-11-08
JP2022171607A (ja) 2022-11-11
FR3122476B1 (fr) 2024-04-05
FR3122477B1 (fr) 2023-12-08

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