WO2021224071A1 - Cuve étanche et thermiquement isolante comprenant des éléments de remplissage anti-convectif - Google Patents
Cuve étanche et thermiquement isolante comprenant des éléments de remplissage anti-convectif Download PDFInfo
- Publication number
- WO2021224071A1 WO2021224071A1 PCT/EP2021/061023 EP2021061023W WO2021224071A1 WO 2021224071 A1 WO2021224071 A1 WO 2021224071A1 EP 2021061023 W EP2021061023 W EP 2021061023W WO 2021224071 A1 WO2021224071 A1 WO 2021224071A1
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- WIPO (PCT)
- Prior art keywords
- corrugations
- tank
- series
- filling elements
- vessel
- Prior art date
Links
- 230000002093 peripheral effect Effects 0.000 claims abstract description 63
- 230000004888 barrier function Effects 0.000 claims abstract description 59
- 239000012528 membrane Substances 0.000 claims abstract description 46
- 239000002184 metal Substances 0.000 claims abstract description 20
- 238000007789 sealing Methods 0.000 claims abstract description 13
- 239000000945 filler Substances 0.000 claims description 46
- 238000004078 waterproofing Methods 0.000 claims description 30
- 238000009413 insulation Methods 0.000 claims description 28
- 238000007667 floating Methods 0.000 claims description 12
- 239000011324 bead Substances 0.000 claims description 9
- 239000012530 fluid Substances 0.000 claims description 8
- 239000012263 liquid product Substances 0.000 claims description 8
- 239000006260 foam Substances 0.000 claims description 7
- 238000004891 communication Methods 0.000 claims description 6
- 238000012546 transfer Methods 0.000 claims description 5
- 229920000642 polymer Polymers 0.000 claims description 4
- 239000004698 Polyethylene Substances 0.000 claims description 2
- 239000004793 Polystyrene Substances 0.000 claims description 2
- 238000000034 method Methods 0.000 claims description 2
- -1 polyethylene Polymers 0.000 claims description 2
- 229920000573 polyethylene Polymers 0.000 claims description 2
- 229920002223 polystyrene Polymers 0.000 claims description 2
- 239000012212 insulator Substances 0.000 claims 1
- 239000007789 gas Substances 0.000 description 39
- 239000003949 liquefied natural gas Substances 0.000 description 17
- 238000009434 installation Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 7
- 230000000295 complement effect Effects 0.000 description 4
- 230000000717 retained effect Effects 0.000 description 4
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- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000007688 edging Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 229930195733 hydrocarbon Natural products 0.000 description 2
- 150000002430 hydrocarbons Chemical class 0.000 description 2
- 239000003915 liquefied petroleum gas Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- OTMSDBZUPAUEDD-UHFFFAOYSA-N Ethane Chemical compound CC OTMSDBZUPAUEDD-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000009529 body temperature measurement Methods 0.000 description 1
- 239000001273 butane Substances 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000000112 cooling gas Substances 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000002828 fuel tank Substances 0.000 description 1
- 239000011491 glass wool Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000011490 mineral wool Substances 0.000 description 1
- IJDNQMDRQITEOD-UHFFFAOYSA-N n-butane Chemical compound CCCC IJDNQMDRQITEOD-UHFFFAOYSA-N 0.000 description 1
- OFBQJSOFQDEBGM-UHFFFAOYSA-N n-pentane Natural products CCCCC OFBQJSOFQDEBGM-UHFFFAOYSA-N 0.000 description 1
- 235000019362 perlite Nutrition 0.000 description 1
- 239000010451 perlite Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
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- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 230000001902 propagating effect Effects 0.000 description 1
- 239000001294 propane Substances 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C3/00—Vessels not under pressure
- F17C3/02—Vessels not under pressure with provision for thermal insulation
- F17C3/04—Vessels not under pressure with provision for thermal insulation by insulating layers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B25/00—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby
- B63B25/02—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods
- B63B25/08—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods fluid
- B63B25/12—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods fluid closed
- B63B25/16—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods fluid closed heat-insulated
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C13/00—Details of vessels or of the filling or discharging of vessels
- F17C13/001—Thermal insulation specially adapted for cryogenic vessels
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- 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
- F17C13/02—Special adaptations of indicating, measuring, or monitoring equipment
- F17C13/026—Special adaptations of indicating, measuring, or monitoring equipment having the temperature as the parameter
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- 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
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- 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
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- 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
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- 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)
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- 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
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- F17C2203/0329—Foam
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- 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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2203/00—Vessel construction, in particular walls or details thereof
- F17C2203/06—Materials for walls or layers thereof; Properties or structures of walls or their materials
- F17C2203/0602—Wall structures; Special features thereof
- F17C2203/0612—Wall structures
- F17C2203/0614—Single wall
- F17C2203/0621—Single wall with three layers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2203/00—Vessel construction, in particular walls or details thereof
- F17C2203/06—Materials for walls or layers thereof; Properties or structures of walls or their materials
- F17C2203/0634—Materials for walls or layers thereof
- F17C2203/0658—Synthetics
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
- F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
- F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
- F17C2205/0352—Pipes
- F17C2205/0355—Insulation thereof
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- 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
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- 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
- F17C2221/035—Propane butane, e.g. LPG, GPL
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- 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
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- 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
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- 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
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- 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
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- 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
- F17C2250/00—Accessories; Control means; Indicating, measuring or monitoring of parameters
- F17C2250/04—Indicating or measuring of parameters as input values
- F17C2250/0404—Parameters indicated or measured
- F17C2250/0439—Temperature
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- 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
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- 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
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- 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 the storage and / or transport of fluid, such as a liquefied gas.
- Sealed and thermally insulating membrane tanks are used in particular for the storage of liquefied natural gas (LNG), which is stored, at atmospheric pressure, at approximately -162 ° C. These tanks can be installed on land or on a floating structure. In the case of a floating structure, the tank may be intended for the transport of liquefied natural gas or to receive liquefied natural gas serving as fuel for the propulsion of the floating structure.
- LNG liquefied natural gas
- sealed and thermally insulating tanks for storing liquefied natural gas, integrated into a supporting structure, such as the double hull of a ship intended for transporting liquefied natural gas.
- a supporting structure such as the double hull of a ship intended for transporting liquefied natural gas.
- such tanks comprise a multilayer structure having successively, in the direction of the thickness, from the outside to the inside of the tank, a secondary thermal insulation barrier retained in the supporting structure, a waterproofing membrane. secondary resting 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 primary waterproofing membrane is made of corrugated metal plates.
- the rectangular metal plate comprises a first series of parallel corrugations, called low, extending in a direction y from one edge to the other of the sheet and a second series of parallel corrugations, called high, s' extending in a direction x from one edge to the other of the metal sheet.
- the x and y directions of the series of undulations are perpendicular.
- the corrugations protrude from the side of an internal face of the metal sheet, intended to be brought into contact with the fluid contained in the tank.
- the corrugated metal plates have flat portions between the corrugations.
- corrugations of the primary waterproofing membrane thus form circulation channels for a gas present in the primary thermally insulating barrier.
- one of the x or y directions is parallel to the direction of greatest slope for an inclined wall
- the primary waterproofing membrane being at very low temperatures and the secondary waterproofing membrane or the supporting structure at higher temperatures, it was observed that a thermosyphon phenomenon was set up in the inclined walls forming a angle with a horizontal direction, for example of the vertical walls of the tank, with the circulation of a gas (or gas mixture) cooling, therefore descending with respect to the vertical direction, between the primary waterproofing membrane and the barrier thermally insulating primary (in the channels formed by the corrugations) and the circulation of a heating gas, therefore rising with respect to the vertical direction, between the secondary waterproofing membrane and the secondary thermally insulating barrier or between the thermally insulating barrier secondary and the load-bearing wall.
- the circulation of the cooling gas and the circulation of the heating gas form a closed circuit at the ends of the vessel wall which promotes convective heat transfer through the vessel wall.
- thermosyphon phenomenon formed at the level of the bottom wall of the tank between the different insulating panels.
- thermosiphon effect does not allow the thermally insulating barrier to play its insulating role effectively and can thus damage the outer structure of the vessel by propagating extreme temperatures from the contents of the vessel to the vessel.
- the invention aims to remedy this problem.
- An idea underlying the invention is to provide a sealed and thermally insulating tank with a sealing membrane comprising corrugations in which the phenomena of convection or thermosyphon are reduced.
- an idea at the basis of 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 the phenomena of natural convection in said insulation barriers. thermal.
- the invention provides a sealed and thermally insulating tank for storing a liquefied gas, in which the tank has a bottom wall, a ceiling wall and peripheral walls connecting the bottom wall to the wall. ceiling so as to form a polyhedral tank, the peripheral walls comprising a sealing membrane intended to be in contact with the liquefied gas contained in the tank and at least one thermal insulation barrier arranged between the sealing membrane and a load-bearing wall of a load-bearing structure, the thermal insulation barrier comprising a plurality of juxtaposed insulating panels, wherein the waterproofing membrane comprises corrugated metal plates juxtaposed with one another and comprising a first series of parallel corrugations, extending in an x direction and a second series of parallel corrugations extending in a y direction, the direction x being a direction of greater slope of the peripheral wall, the corrugations projecting towards the interior of the vessel and forming circulation channels for a gas present in the thermally insulating barrier, in which the peripheral walls comprise pressure drop
- the gas flow located in the corrugation circulation channels which, while cooling, would be brought down in the peripheral walls is here blocked in its circulation by the pressure drop filling elements arranged in the part of obstruction of the filler element belt.
- This gas flow is thus forced to pass through the interrupt part (s) in order to pass through the belt of filler elements.
- the belt of filler elements thus achieves a singular pressure drop on this flow by sharply reducing the flow section of the flow over the entire wall, preventing the thermosyphon effect from establishing itself in the peripheral walls.
- each filler of the obstructing portion may be located at one of the corrugations of the second series of corrugations, the other of the corrugations of the second series of corrugations, or between these two corrugations.
- such a tank may include one or more of the following characteristics.
- the filling elements are configured to generate a pressure drop reducing a gas flow passing through said circulation channel by at least 80%.
- these pressure drop filling elements thus consist of plugs formed in the corrugations causing a pressure drop on a flow such that the pressure drop P is greater than or equal to 80% of: ( ⁇ (Tf) - ⁇ (Tc)) ⁇ g ⁇ h, with Tc and Tf the temperatures of the hot and cold branches of the thermosyphon, ⁇ the density of the flow, and h the largest dimension of the thermosyphon loop depending on the severity.
- the temperature of the hot branch is measured at the very top of the loop under the insulating barrier while the temperature of the cold branch is measured at the very bottom of the mouth in a circulation channel. In this case, it is the extreme temperatures of the hot branch and of the cold branch which are measured, but it is of course possible to envisage a different measurement configuration for these two temperature measurements.
- This pressure drop can be caused by a particular geometry of the filler element, and / or a particular material constituting the filler element, this material having a suitable coefficient of permeability.
- the filling elements are made of a gas-tight material.
- the filling elements of the obstructing part of the at least one belt of filling elements are aligned with each other in the y direction.
- the y direction is perpendicular to the x direction.
- the vessel comprises a plurality of belts of filler elements spaced from each other by a pitch substantially equal to a dimension of the insulation panels in the x direction.
- the at least one interrupt portion of a filler belt is offset in the y direction with respect to the interrupt portions of the filler belts adjacent to said belt. filling elements, for example an offset greater than or equal to one third of the dimension of the peripheral wall in the y direction.
- the at least one interrupting part is located near an edge of a said peripheral wall, the interrupting parts of two adjacent filling element belts being arranged on both sides. other of the peripheral wall.
- the interrupting parts form a staggered network on the peripheral wall so as to force the gas flow to take a path comprising a plurality of elbows which allows the pressure drop to be increased.
- the filler belts include a single interrupt portion, the interrupt portions of two adjacent filler belts being located on peripheral walls opposing each other.
- the arrangement of the interruption parts makes it possible to force the flow to take a much longer path to descend along the peripheral wall and thus takes a path deviated in a horizontal plane at each passage of a belt of elements of filling.
- said interrupting part is arranged in adjacent corrugations of the first series of corrugations located in line with a single insulating panel, said adjacent corrugations being devoid of filling elements.
- said interrupting portion is located in one to nine adjacent corrugations of the first series of corrugations, said one to nine adjacent corrugations being devoid of fillers.
- an insulating panel located under the corrugated metal plates can advantageously have a dimension making it possible to accommodate three to nine corrugations of the first series of corrugations depending on its orientation.
- the interrupting part is formed only on one of the insulating panels in order to facilitate the construction of the vessel wall but also to limit the size of the interrupting part so that it plays its part. role of pressure drop.
- the at least one interrupt part is located in a plurality of adjacent corrugations, preferably three to nine corrugations, the interrupt part comprising a staggered array of filler elements, the array staggered being configured to create a fluid communication path between the circulation channels below the filler belt and the circulation channels above the filler belt, said fluid communication path comprising a plurality of turns.
- the filling elements are made of closed cell polymer foam.
- the filling elements are made of polystyrene or polyethylene foam.
- the filling elements have a density of between 10 and 50 kg / m 3 , preferably of between 20 and 30 kg / m 3 .
- the filling elements have an elastic modulus at room temperature of between 1 MPa and 45 MPa, according to the ISO844 standard, preferably of between 1 MPa and 30 MPa.
- the filling elements have an elastic limit of between 0.02 MPa and 1 MPa, according to the ISO844 standard.
- the infill elements are located above, below or at a corrugation node in the direction of greatest slope, the corrugation node being formed by a crossing between a corrugation of the first set of ripples and one ripple of the second set of ripples.
- the filling elements of the obstruction part of the same belt are thus substantially aligned in the x direction by being located between two corrugations of the second series of corrugations, including as possible positions of the filling elements the nodes of. corrugation formed by crossing said two corrugations of the second series of corrugations with the corrugation of the first series of corrugations.
- the filling elements of the obstructing portion are located at a corrugation node.
- the filling elements of the interrupt part are located between two corrugation nodes.
- the filling element comprises a single section extending in the x direction, the section having an upper face facing the corrugation to be closed and a lower face facing the insulating panel, the lower face being flat so as to rest on the insulating panel, the upper face being convex and being configured to have a shape complementary to the corrugation to be closed.
- the filling element comprises a first section extending in the y direction and two second sections extending in the x direction and located on either side of the first section so as to form an element.
- X-shaped filling, the first section and the second section each having an upper face facing the corrugation to be closed and a lower face facing the insulating panel, the lower face being flat so as to rest on the insulating panel, the upper face being convex and being configured to be of a shape complementary to the corrugation to be closed.
- the filling elements comprise on an upper face facing the corrugation to be closed off at least one bead extending in the y direction, the at least one bead being configured to be compressed during assembly so to form a seal.
- the filling elements include a bead on each second section and two beads on either side of the first section.
- the waterproofing membrane is a primary waterproofing membrane and the thermally insulating barrier is a primary thermally insulating barrier, said juxtaposed insulating panels being primary insulating panels, the tank walls further comprising, successively in a direction of thickness, a secondary thermal insulation barrier comprising a plurality of juxtaposed secondary insulation panels, the secondary insulation panels being retained against the load-bearing wall of the load-bearing structure, and a secondary waterproofing membrane carried by the barrier of secondary thermal insulation and disposed between the secondary thermal insulation barrier and the primary thermal insulation barrier such that the primary insulation panels are retained against the secondary waterproofing membrane.
- the bottom wall comprises a sealing membrane intended to be in contact with the liquefied gas contained in the tank and at least one thermal insulation barrier arranged between the sealing membrane and a supporting wall of 'a supporting structure, the thermal insulation barrier comprising a plurality of juxtaposed insulating panels, wherein the waterproofing membrane of the bottom wall comprises corrugated metal plates juxtaposed to one another and comprising a first series of parallel corrugations, extending in a first direction and a second series of parallel corrugations extending in a second direction, the corrugations projecting towards the interior of the tank and forming circulation channels for a gas present in the thermally insulating barrier.
- the bottom wall comprises pressure drop filling elements, which are arranged in the corrugations of the first series of corrugations or of the second series of corrugations in order to obstruct the circulation channel of said. corrugations, the filling elements being distributed over the entire bottom wall so as to form a staggered network of filling elements in the circulation channels of the bottom wall, and the filling elements being configured to ensure a loss of load reducing a gas flow passing through said circulation channel by at least 80%.
- the first direction is perpendicular to the second direction.
- the tank comprises pressure drop filling elements, which are arranged in the corrugations of the first series of corrugations or of the second series of corrugations in each of the tank angles formed by the intersection of the bottom wall and one of the peripheral walls in order to obstruct the circulation channel of said corrugations, the filling elements forming an edge belt, the edge belt being formed all around the bottom wall at the level of said angles .
- the border belt makes it possible to limit the propagation of these natural convection phenomena to the bottom wall.
- each of the corrugations of the first series of corrugations and of the second series of corrugations of the bottom wall is aligned with a corrugation of the first series of corrugations of a peripheral wall so as to form continuous circulation channels passing through the corners of the tank, the filling elements of the border belt being arranged in each of said continuous circulation channels.
- the filling elements of the border belt are arranged at a first end and at a second end, opposite the first end, of each of the corrugations of the first series of corrugations and of the second series of corrugations. 'corrugations of the bottom wall, the first end and the second end being located near one of the vessel angles formed by the bottom wall and one of the peripheral walls.
- the filling elements of the edge belt are arranged near a vessel corner formed by the bottom wall and one of the peripheral walls, alternating between one end of a corrugation of one series of corrugations of the bottom wall and one end of a corrugation of the first series of corrugations of a peripheral wall.
- the invention provides a sealed and thermally insulating tank for storing a liquefied gas, in which the tank has a bottom wall, a ceiling wall and peripheral walls connecting the bottom wall to the wall. ceiling so as to form a polyhedral tank, the bottom wall comprising a waterproofing membrane intended to be in contact with the liquefied gas contained in the vessel and at least one thermal insulation barrier arranged between the waterproofing membrane and a load-bearing wall of a load-bearing structure, the thermal insulation barrier comprising a plurality of juxtaposed insulating panels, in which the waterproofing membrane comprises corrugated metal plates juxtaposed with one another and comprising a first series of parallel corrugations, extending in an x direction and a second series of parallel corrugations extending in an inclined y direction with respect to the y direction, the corrugations protruding towards the interior of the tank and forming circulation channels for a gas present in the thermally insulating barrier, wherein the bottom wall comprises pressure drop filling elements, which
- Such a tank can be part of an onshore storage facility, for example to store LNG or be installed in a floating, coastal or deep water structure, in particular an LNG vessel, a floating storage and regasification unit (FSRU). , a floating production and remote storage unit (FPSO) and others.
- FSRU floating storage and regasification unit
- FPSO floating production and remote storage unit
- Such a tank can also serve as a fuel tank in any type of vessel.
- a ship for transporting a cold liquid product comprises a double hull and a above-mentioned tank 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 a floating storage installation. or terrestrial and a pump for driving a flow of cold liquid product through the insulated pipes from or towards the floating or terrestrial storage installation towards or from the vessel of the vessel.
- the 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 installation to or from the vessel. vessel tank.
- a sealed and thermally insulating tank 71 for storing liquefied gas comprising a bottom wall 12, a ceiling wall 13 and a plurality of peripheral walls 1 connecting the bottom wall 12 to the bottom wall.
- ceiling wall 13 the walls 1, 12, 13 being fixed to a supporting structure 2.
- the peripheral walls are formed of vertical walls and possibly of inclined walls called chamfered walls.
- the particular case of a vertical wall is illustrated in However, the invention is not limited to the particular case of a vertical wall but to all the peripheral walls 1.
- vertical here means extending in the direction of the earth's gravity field.
- horizontal here means extending in a direction perpendicular to the vertical direction.
- 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.
- Liquefied gas can also be ethane or liquefied petroleum gas (LPG), that is to say a mixture of hydrocarbons obtained from the refining of petroleum comprising mainly propane and butane.
- the peripheral wall 1 has a multilayer structure comprising successively, in the direction of the thickness from the outside to the inside of the tank 71, a thermally insulating barrier 3 retained against the supporting wall 2 and a sealing membrane 4 carried by the thermally insulating barrier 3.
- the thermally insulating barrier 3 comprises a plurality of insulating panels 5 which are anchored to the supporting wall 2 by means of retainers or couplers (not shown).
- the insulating panels 5 have a general parallelepipedal shape and are arranged in parallel rows.
- the insulating blocks 5 can be made according to different structures.
- An insulating panel 5 can be made in the form of a box comprising a bottom plate, a cover plate and supporting webs extending, in the thickness direction of the vessel wall, between the bottom plate and the cover plate and delimiting a plurality of compartments filled with an insulating lining, such as perlite, glass wool or rock wool.
- an insulating lining such as perlite, glass wool or rock wool.
- An insulating panel 5 can also be made of a bottom plate 7, a cover plate 6 and possibly an intermediate plate, for example made of plywood.
- the insulating block 5 also comprises one or more layers of insulating polymer foam 8 sandwiched between the bottom plate 7, the cover plate 6 and the possible intermediate plate and glued to them.
- the insulating polymer foam 8 can in particular be a polyurethane-based foam, optionally reinforced with fibers. Such a general structure is for example described in WO2017 / 006044.
- the waterproofing membrane 4 is composed of corrugated metal plates 9. These corrugated metal plates are for example made of stainless steel, the thickness of which is approximately 1.2 mm and the size of 3 m by 1 m.
- the rectangular metal plate comprises a first series of parallel corrugations 10 extending in a direction x from one edge to the other of the plate and a second series of parallel corrugations 11 extending in a direction y d 'one edge of the metal plate to the other.
- the x and y directions of the series of waves 10, 11 are perpendicular.
- the corrugations 10, 11 are, for example, projecting from the side of the internal face of the metal plate, intended to be brought into contact with the fluid contained in the tank.
- the edges of the metal plate are here parallel to the corrugations.
- the corrugated metal plates have flat portions between the corrugations 10, 11. The intersection between a corrugation of the first series of corrugations 10 and a corrugation of the second series of corrugations 11 forms a corrugation no
- the tank wall 1 can thus consist of a single sealing membrane 4 and a single thermally insulating barrier 3.
- the tank wall 1 can also include a so-called double membrane structure.
- the thermally insulating barrier 3 described is a primary thermally insulating barrier and the waterproofing membrane 4 is a primary waterproofing membrane.
- the tank wall 1 thus also comprises a secondary thermally insulating barrier fixed to the supporting structure and a secondary sealing membrane carried by the secondary thermally insulating barrier and serving as a support for the primary thermally insulating barrier.
- the corrugations of the first series 10 and the second series 11 of the sealing membrane form circulation channels 14 for a gas present in the primary thermally insulating barrier.
- the channels 14 formed by the corrugations of the first series of corrugations 10 directed in the x direction which is the direction of greatest slope for an inclined wall are conducive to the circulation of gas by the thermosiphon effect.
- thermosiphon effect provision is made in the embodiments described below to position, in the corrugations of the first series of corrugations 10 of the peripheral walls 1, pressure drop filling elements 15 which are arranged. in these corrugations 10 in order to punctually obstruct the circulation channel 14 and thus cut off the flow of flow in this corrugation.
- the pressure drop filling elements 15 are arranged so as to form a plurality of filling element belts 16.
- Each filling element belt 16 is formed in a plane. parallel to the bottom wall 12 and extending all around the tank 71 as shown in Figures 2 and 3.
- the filler belts 16 have an obstructing part 17 and an interrupting part 18.
- each of the corrugations of the first series of corrugations 10 is punctually closed off by one of the filling elements 15.
- This obstructing part 17 thus makes it possible to completely cut off the descent through the circulation channels 14 of a gas flow.
- the interrupting part 18 the circulation of the gas present in the circulation channels 14 through the belt of filler elements 16 is possible in order to advantageously avoid the formation of a gas pocket in the thermally insulating barrier. 3 allowing the gas flow to circulate.
- the design of the interrupt part 18 can be made according to different variants illustrated in Figures 4 to 6.
- a belt of filler elements 16 does not include more than one interrupt part 18 per peripheral wall 1.
- each belt of filling elements 16 comprises a single interrupting part 18 so as to allow the flow to pass over a single zone all around the tank 71 for each belt of elements 16.
- the interrupting portions 18 of two adjacent filling element belts 16 are located on peripheral walls 1 opposed to each other to constrain the flow of gas passing through these portions of the filling element 16. interruption 18 to take the longest path to reach the next interruption part 18.
- the second embodiment provides that a same belt of filling elements 16 comprises a plurality of obstructing parts 17 and a plurality of interrupting parts 18 all around the tank while respecting a only one interruption part per peripheral wall 1.
- Each obstruction part 17 defines an obstruction zone delimited by two interruption parts 18.
- the interruption parts 18 of two belts of adjacent filler elements 16 are arranged on either side of the peripheral wall 1, for example as illustrated in FIG. by placing them near opposite edges of the peripheral wall 1. The interrupting parts 18 are thus formed staggered on the same peripheral wall 1.
- Figures 4 to 7 show a portion of a belt of filler elements 16 in particular at the junction between the obstructing part 17 and the interrupting part 18 according to several variant embodiments.
- the filling elements 16 of an obstructing part 17 are located at a corrugation node 20.
- the filling elements 16 of a part d could be located above or below a corrugation node 20 as long as these remain substantially aligned in the y direction on the same peripheral wall 1.
- an insulating panel 5 located under the corrugated metal plates 9 has a dimension to accommodate three to nine corrugations of the first series of corrugations 10 depending on its orientation.
- the insulating panels 5 are shown so that their largest dimension is directed in the y direction and thus accommodate nine corrugations of the first series of corrugations 10.
- the interrupt part 18 is located in a single corrugation of the first series of corrugations 10 which is thus devoid of fillers 15.
- the interrupt part 18 could be located in a maximum of nine corrugations of the first series of corrugations 10, these corrugations thus being devoid of filling elements 15 at the level of the filling element belt 16.
- the interrupt part 18 is identical to the first variant.
- the obstruction parts 17 located on either side of the interrupt part 18 are not aligned with respect to each other in the y direction as in the first variant but offset by a corrugation. in the x direction. This offset between two adjacent obstruction parts 17 could be at most nine corrugations of the second series of corrugations 11.
- the interrupt part 18 is not formed by the absence of filling elements 15.
- the interrupt part 18 is located in nine corrugations of the first series of 'corrugations 10, the interrupting part 18 comprising here a staggered network 19 of filling elements 15.
- the staggered network 19 is made so as to create a fluidic communication path between the circulation channels 14 located below the belt of filler elements 16 and the circulation channels 14 located above the belt of filler elements 16.
- the fluid communication path is thus formed of a plurality of bends through the staggered network 19.
- the filling elements 15 of the interrupt part 18 are located between two corrugation nodes 20.
- the insulating panels 5 are shown so that their largest dimension is directed in the x direction and thus accommodate three corrugations of the first series of corrugations 10.
- the fourth variant illustrated in is thus similar to the third variant by adapting the staggered network 19 to an interrupting part 18 formed here of three corrugations of the first series of corrugations 10.
- Figures 8 and 9 show two different designs of a filler 15 depending on whether it is positioned in a corrugation node 20 or in a portion of a corrugation of the first series of corrugations 10.
- the filler 15 of the is thus adapted to be positioned in a portion of a corrugation of the first series of corrugations 10 out of a corrugation node 20.
- This filling element 15 comprises a single section 21 extending in the x direction after placement. in the ripple.
- the section 21 comprises an upper face 24 turned towards the corrugation to be closed and a lower face 25 turned towards the insulating panel 5.
- the lower face 25 is planar so as to rest on the insulating panel 5.
- the upper face 24 is convex and is configured to be of a shape complementary to the corrugation to be closed.
- the section 21 comprises two beads 26 on either side of the latter forming a protuberance and serving as a seal while being compressed by the corrugation during assembly.
- the filler 15 of the is thus adapted to be positioned in a corrugation node 20.
- This filling element 15 comprises a first section 22 extending in the y direction after placement in the corrugation and two second sections 23 extending in the x direction and located on either side of the first section 22 so as to form an X-shaped filling element.
- the first section 22 and the second sections 23 each have an upper face 24 facing the corrugation to be closed and a lower face 25 turned towards the insulating panel 5.
- the lower face 25 is flat so as to rest on the insulating panel 5 and the upper face 24 is curved to be of a shape complementary to the corrugation to be closed.
- the filling element 15 comprises a bead 26 on each second section 23 and two beads 26 on either side of the first section 22.
- FIGS 11 and 12 schematically and partially show a chamfered tank 71 which has been unfolded so as to illustrate in its center the bottom wall 12 as well as the peripheral walls 1 connected to the bottom wall 12, namely in the case of 'a tank 71 provided with two vertical cofferdam walls and two lower chamfer walls inclined at 135 ° for example.
- the tank may also be devoid of a chamfer so that the peripheral walls connected to the bottom wall 12 are two vertical cofferdam walls and two vertical side walls.
- the tank 71 is equipped with an edge belt 27 composed of a plurality of filling elements 15 which is formed all around the bottom wall 12 near the corners of the tank formed by the 'intersection of the bottom wall 12 and one of the peripheral walls 1.
- the filling elements 15 of the edge belt 27 are arranged in the corrugations of the first series of corrugations 10, 28 or of the second series of corrugations. corrugations 29 in each of the angles of in order to obstruct the circulation channel of said corrugations.
- the border belt 27 makes it possible to limit the propagation of these natural convection phenomena to the base wall 12. In fact, the border belt 27 will allow to separate the flows present in the peripheral walls 1 from the flows present in the bottom wall 12.
- the edge belt 27 is advantageously used in addition to the belts of filling elements 16 located all around the tank 71.
- each of the corrugations of the first series of corrugations 28 and of the second series of corrugations 29 of the bottom wall 12 is aligned with a corrugation of the first series of corrugations 10 of a peripheral wall 12 so as to form continuous circulation channels in the corners of the tank.
- the filling elements 15 of the edge belt 27 are thus formed in each of said continuous circulation channels.
- the fillers 15 of the edge belt 27 are formed at both ends of each of the corrugations of the first series of corrugations 28 and of the second series of corrugations 29 of the bottom wall 12.
- the ends of the corrugations of the bottom wall 12 are in fact located near one of the vessel angles formed by the bottom wall and one of the walls peripherals and are connected to one end of a corrugation of a peripheral wall 1 using a connecting plate (not shown) bent at an angle equal to the vessel angle and having a corrugation aligned with the corrugation of the bottom wall 12 and the corrugation of the peripheral wall 1.
- the filling elements 15 of the edge belt 27 may also be located in the corrugation of the connecting plate. t.
- the fillers 15 of the edging belt 27 are formed near a tub corner alternating between one end of a corrugation of one of the series of corrugations 28, 29 of the bottom wall 12 and one end of a corrugation of the first series of corrugations 10 of a peripheral wall 1.
- the alternation illustrated here is carried out so as to have a filling element 15 on the bottom wall 12 then a filling element 12 on a peripheral wall 1. In other embodiments not shown, this alternation can be carried out differently, for example two on one wall then two on one other walls.
- a cutaway view of an LNG carrier 70 shows a sealed and insulated tank 71 of generally prismatic shape mounted in the double hull 72 of the ship.
- the wall of the vessel 71 comprises a primary watertight barrier intended to be in contact with the LNG contained in the vessel, a secondary watertight barrier arranged between the primary watertight barrier and the double hull 72 of the ship, and two insulating barriers arranged respectively between the vessel. primary watertight barrier and the secondary watertight barrier and between the secondary watertight barrier and the double shell 72.
- loading / unloading pipes 73 arranged on the upper deck of the ship can be connected, by means of suitable connectors, to a maritime or port terminal for transferring a cargo of LNG from or to the tank 71.
- the shows an example of a maritime terminal comprising a loading and unloading station 75, an underwater pipe 76 and an onshore installation 77.
- the loading and unloading station 75 is a fixed off-shore installation comprising a movable arm 74 and a tower 78 which supports the movable arm 74.
- the movable arm 74 carries a bundle of insulated flexible pipes 79 which can be connected to the loading / unloading pipes 73.
- the movable arm 74 can be orientated and adapts to all sizes of LNG carriers.
- a connecting pipe (not shown) extends inside the tower 78.
- the loading and unloading station 75 allows the loading and unloading of the LNG carrier 70 from or to the onshore installation 77.
- the latter comprises liquefied gas storage tanks 80 and connecting pipes 81 connected by the underwater pipe 76 to the loading or unloading station 75.
- the underwater pipe 76 allows the transfer of the liquefied gas between the loading or unloading station 75 and the shore installation 77 over a great distance, for example 5 km, which makes it possible to keep the LNG carrier 70 at a great distance from the coast during loading and unloading operations.
- pumps on board the ship 70 and / or pumps fitted to the shore installation 77 and / or pumps fitted to the loading and unloading station 75 are used.
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Abstract
Description
dans laquelle la membrane d’étanchéité comporte des plaques métalliques ondulées juxtaposées les unes aux autres et comprenant une première série d'ondulations parallèles, s’étendant selon une direction x et une seconde série d'ondulations parallèles s’étendant selon une direction y, la direction x étant une direction de plus grande pente de la paroi périphérique, les ondulations étant saillantes vers l’intérieur de la cuve et formant des canaux de circulation pour un gaz présent dans la barrière thermiquement isolante,
dans laquelle les parois périphériques comprennent des éléments de remplissage à perte de charge, qui sont disposés dans les ondulations de la première série d’ondulations afin d’obstruer le canal de circulation desdites ondulations, de sorte à former une ceinture d’éléments de remplissage réalisée dans un plan parallèle à la paroi de fond et s’étendant tout autour de la cuve, la ceinture étant formée d’au moins une partie d’obstruction où chacune des ondulations de la première série d’ondulations est obstruée par l’un des éléments de remplissage, et d’au moins une partie d’interruption configurée pour permettre la circulation du gaz présent dans les canaux de circulation au travers de la ceinture d’éléments de remplissage, ladite ou chaque partie d’obstruction étant délimitée par ladite ou deux parties d’interruption, la ceinture d’éléments de remplissage comportant au plus une partie d’interruption par paroi périphérique, et les éléments de remplissage étant configurés pour générer une perte de charge réduisant un flux gazeux traversant ledit canal de circulation, les éléments de remplissage de la partie d’obstruction de l’au moins une ceinture d’éléments de remplissage étant disposés inclusivement entre deux ondulations adjacentes de la seconde série d’ondulations.
(ρ(Tf) - ρ(Tc)) × g × h, avec Tc et Tf les températures des branches chaude et froide du thermosiphon, ρ la masse volumique de l’écoulement, et h la plus grande dimension de la boucle de thermosiphon selon la gravité. Selon une possibilité offerte par l’invention, la température de la branche chaude est mesurée tout en haut de la boucle sous la barrière isolante tandis que la température de la branche froide est mesurée tout en bas de la bouche dans un canal de circulation. Dans ce cas, ce sont les températures extrêmes de la branche chaude et de la branche froide qui sont mesurées mais on peut bien entendu envisager une configuration de mesure différente pour ces deux mesures de température.
dans laquelle la membrane d’étanchéité de la paroi de fond comporte des plaques métalliques ondulées juxtaposées les unes aux autres et comprenant une première série d'ondulations parallèles, s’étendant selon une première direction et une seconde série d'ondulations parallèles s’étendant selon une deuxième direction, les ondulations étant saillantes vers l’intérieur de la cuve et formant des canaux de circulation pour un gaz présent dans la barrière thermiquement isolante.
dans laquelle la membrane d’étanchéité comporte des plaques métalliques ondulées juxtaposées les unes aux autres et comprenant une première série d'ondulations parallèles, s’étendant selon une direction x et une seconde série d'ondulations parallèles s’étendant selon une direction y inclinée par rapport à la direction y, les ondulations étant saillantes vers l’intérieur de la cuve et formant des canaux de circulation pour un gaz présent dans la barrière thermiquement isolante,
dans laquelle la paroi de fond comprend des éléments de remplissage à perte de charge, qui sont disposés dans les ondulations de la première série d’ondulations ou de la deuxième série d’ondulations afin d’obstruer le canal de circulation desdites ondulations, les éléments de remplissage étant répartis sur toute la paroi de fond de sorte à former un réseau en quinconce d’éléments de remplissage dans les canaux de circulation de la paroi de fond, et les éléments de remplissage étant configurés pour assurer une perte de charge réduisant un flux gazeux traversant ledit canal de circulation d’au moins 80%.
Claims (19)
- Cuve étanche et thermiquement isolante (71) de stockage d’un gaz liquéfié, dans laquelle la cuve (71) comporte une paroi de fond (12), une paroi de plafond (13) et des parois périphériques (1) reliant la paroi de fond (12) à la paroi de plafond (13) de sorte à former une cuve (71) polyédrique, les parois périphériques (1) comportant une membrane d’étanchéité (4) destinée à être en contact avec le gaz liquéfié contenu dans la cuve (71) et au moins une barrière d’isolation thermique (3) agencée entre la membrane d’étanchéité (4) et une paroi porteuse d’une structure porteuse (2), la barrière d’isolation thermique comportant une pluralité de panneaux isolants (5) juxtaposés,
dans laquelle la membrane d’étanchéité (4) comporte des plaques métalliques ondulées (9) juxtaposées les unes aux autres et comprenant une première série d’ondulations (10) parallèles, s’étendant selon une direction x et une deuxième série d’ondulations (11) parallèles s’étendant selon une direction y, la direction x étant une direction de plus grande pente de la paroi périphérique (1), les ondulations étant saillantes vers l’intérieur de la cuve (71) et formant des canaux de circulation (14) pour un gaz présent dans la barrière thermiquement isolante (3),
dans laquelle les parois périphériques (1) comprennent des éléments de remplissage (15) à perte de charge, qui sont disposés dans les ondulations de la première série d’ondulations (10) afin d’obstruer le canal de circulation (14) desdites ondulations, de sorte à former une ceinture d’éléments de remplissage (16) réalisée dans un plan parallèle à la paroi de fond (12) et s’étendant tout autour de la cuve (71), la ceinture d’éléments de remplissage (16) étant formée d’au moins une partie d’obstruction (17) où chacune des ondulations de la première série d’ondulations (10) est obstruée par l’un des éléments de remplissage (15), et d’au moins une partie d’interruption (18) configurée pour permettre la circulation du gaz présent dans les canaux de circulation (14) au travers de la ceinture d’éléments de remplissage (16), ladite ou chaque partie d’obstruction (17) étant délimitée par ladite ou deux parties d’interruption (18), la ceinture d’éléments de remplissage (16) comportant au plus une partie d’interruption (18) par paroi périphérique (1), et les éléments de remplissage (15) étant configurés pour générer une perte de charge réduisant un flux gazeux traversant ledit canal de circulation (14), les éléments de remplissage (15) d’une dite partie d’obstruction (17) de l’au moins une ceinture d’éléments de remplissage (16) étant à chaque fois disposés inclusivement entre deux ondulations adjacentes de la seconde série d’ondulations (11). - Cuve (71) selon la revendication 1, dans laquelle les éléments de remplissage (15) de la partie d’obstruction (17) de l’au moins une ceinture d’éléments de remplissage (16) sont alignés les uns aux autres selon la direction y, la direction y étant perpendiculaire à la direction x.
- Cuve (71) selon la revendication 1 ou la revendication 2, dans laquelle la cuve (71) comprend une pluralité de ceintures d’éléments de remplissage (16) espacées les unes des autres d’un pas sensiblement égal à une dimension des panneaux isolants (5) dans la direction x.
- Cuve (71) selon la revendication 3, dans laquelle l’au moins une partie d’interruption (18) est situé à proximité d’un bord d’une dite paroi périphérique (1), les parties d’interruption (18) de deux ceintures d’éléments de remplissage (16) adjacentes étant disposées de part et d’autre de la paroi périphérique (1).
- Cuve (71) selon la revendication 3, dans laquelle les ceintures d’élément de remplissage (16) comprennent une unique partie d’interruption (18), les parties d’interruption (18) de deux ceintures d’éléments de remplissage (16) adjacentes étant situées sur des parois périphériques (1) opposées l’une de l’autre.
- Cuve (71) selon l’une des revendications 1 à 5, dans laquelle l’au moins une partie d’interruption (18) est située dans une à neuf ondulations de la première série d’ondulations (10), lesdites une à neuf ondulations adjacentes étant dépourvues d’éléments de remplissage (15).
- Cuve (71) selon l’une des revendications 1 à 5, dans laquelle l’au moins une partie d’interruption (18) est située dans une pluralité d’ondulations de la première d’ondulations (10), de préférence trois à neuf ondulations, la partie d’interruption (18) comportant un réseau en quinconce (19) d’éléments de remplissage (15), le réseau en quinconce (19) étant configuré pour créer un chemin de communication fluidique entre les canaux de circulation (14) situés en dessous de la ceinture d’éléments de remplissage (16) et les canaux de circulations (14) situés au-dessus de la ceinture d’éléments de remplissage (16), ledit chemin de communication fluidique comportant une pluralité de virages.
- Cuve (71) selon l’une des revendications 1 à 7, dans laquelle les éléments de remplissage (15) sont réalisés en mousse polymère à cellule fermée.
- Cuve (71) selon la revendication 8, dans laquelle les éléments de remplissage (15) sont réalisés en mousse de polystyrène ou de polyéthylène.
- Cuve (71) selon l’une des revendications 1 à 9, dans laquelle les éléments de remplissage (15) sont situés au-dessus, en dessous ou au niveau d’un nœud d’ondulation (20) dans la direction de plus grande pente, les nœuds d’ondulation (20) étant formés par un croisement entre une ondulation de la première série d’ondulations (10) et une ondulation de la deuxième série d’ondulations (11).
- Cuve (71) selon l’une des revendications 1 à 10, dans laquelle les éléments de remplissage (15) comprennent sur une face supérieure (24) tournée vers l’ondulation à obturer au moins un bourrelet (26) s’étendant dans la direction y, l’au moins un bourrelet (26) étant configuré pour être comprimé lors du montage de sorte à former un joint d’étanchéité.
- Cuve (71) selon l’une des revendications 1 à 11, dans laquelle la membrane d’étanchéité (4) est une membrane d’étanchéité primaire, et la barrière thermiquement isolante (3) est une barrière thermiquement isolante primaire, lesdites panneaux isolants (5) juxtaposés étant des panneaux isolants primaires, les parois de cuve (1, 12, 13) comportant, en outre, successivement dans une direction d’épaisseur, une barrière d’isolation thermique secondaire comportant une pluralité de panneaux isolants secondaires juxtaposés, les panneaux isolants secondaires étant retenus contre la paroi porteuse de la structure porteuse (2), et une membrane d’étanchéité secondaire portée par la barrière d’isolation thermique secondaire, et disposée entre la barrière d’isolation thermique secondaire et la barrière thermiquement isolante primaire (3) de sorte que les panneaux isolants primaires (5) soient retenus contre la membrane d’étanchéité secondaire.
- Cuve (71) selon l’une des revendications 1 à 12, dans laquelle la paroi de fond (12) comprend une membrane d’étanchéité (4) destinée à être en contact avec le gaz liquéfié contenu dans la cuve et au moins une barrière d’isolation thermique (3) agencée entre la membrane d’étanchéité et une paroi porteuse d’une structure porteuse, la barrière d’isolation thermique comportant une pluralité de panneaux isolants juxtaposés,
dans laquelle la membrane d’étanchéité de la paroi de fond comporte des plaques métalliques ondulées (9) juxtaposées les unes aux autres et comprenant une première série d'ondulations (10) parallèles, s’étendant selon une première direction et une seconde série d'ondulations (11) parallèles s’étendant selon une deuxième direction, les ondulations étant saillantes vers l’intérieur de la cuve et formant des canaux de circulation (14) pour un gaz présent dans la barrière thermiquement isolante. - Cuve (71) selon la revendication 13, dans laquelle la paroi de fond (12) comprend des éléments de remplissage (15) à perte de charge, qui sont disposés dans les ondulations de la première série d’ondulations (10) ou de la deuxième série d’ondulations (11) afin d’obstruer le canal de circulation desdites ondulations, les éléments de remplissage (15) étant réparties sur toute la paroi de fond de sorte à former un réseau en quinconce (19) d’éléments de remplissage (15) dans les canaux de circulation (14) de la paroi de fond (12), et les éléments de remplissage (15) étant configurés pour assurer une perte de charge réduisant un flux gazeux traversant ledit canal de circulation (14) d’au moins 80%.
- Cuve (71) selon la revendication 13 ou la revendication 14, dans laquelle la cuve (71) comprend des éléments de remplissage à perte de charge (15), qui sont disposés dans les ondulations de la première série d’ondulations (10, 28) ou de la deuxième série d’ondulations (29) dans chacun des angles de cuve formés par la paroi de fond (12) et l’une des parois périphériques (1) afin d’obstruer le canal de circulation desdites ondulations, les éléments de remplissage (15) formant une ceinture de bordure (27), la ceinture de bordure (27) étant formée tout autour de la paroi de fond au niveau desdits angles.
- Cuve (71) selon la revendication 15, dans laquelle chacune des ondulations de la première série d’ondulations (28) et de la deuxième série d’ondulations (29) de la paroi de fond (12) est alignée avec une ondulation de la première série d’ondulations (10) d’une paroi périphérique (1) de sorte à former des canaux de circulation continus traversant les angles de cuve, les éléments de remplissage (15) de la ceinture de bordure (27) étant disposés dans chacun desdits canaux de circulation continus.
- Navire (70) pour le transport d’un produit liquide froid, le navire comportant une double coque (72) et une cuve (71) selon l’une des revendications 1 à 16 disposée dans la double coque.
- Système de transfert pour un produit liquide froid, le système comportant un navire (70) selon la revendication 17, des canalisations isolées (73, 79, 76, 81) agencées de manière à relier la cuve (71) installée dans la coque du navire à une installation de stockage flottante ou terrestre (77) et une pompe pour entrainer un flux de produit liquide froid à travers les canalisations isolées depuis ou vers l’installation de stockage flottante ou terrestre vers ou depuis la cuve du navire.
- Procédé de chargement ou déchargement d’un navire (70) selon la revendication 17, dans lequel on achemine un produit liquide froid à travers des canalisations isolées (73, 79, 76, 81) depuis ou vers une installation de stockage flottante ou terrestre (77) vers ou depuis la cuve du navire (71).
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US17/997,601 US12038137B2 (en) | 2020-05-05 | 2021-04-27 | Sealed and thermally insulating tank comprising anti-convective filling elements |
KR1020217031189A KR102428907B1 (ko) | 2020-05-05 | 2021-04-27 | 대류 방지 충전 요소를 포함하는 밀봉 및 단열 탱크 |
CA3176441A CA3176441A1 (fr) | 2020-05-05 | 2021-04-27 | Cuve etanche et thermiquement isolante comprenant des elements de remplissage anti-convectif |
CN202180002584.4A CN113906252B (zh) | 2020-05-05 | 2021-04-27 | 包括防对流填充元件的密封隔热贮罐 |
MX2022013421A MX2022013421A (es) | 2020-05-05 | 2021-04-27 | Tanque sellado y termicamente aislante que comprende elementos de relleno anticonvectivos. |
EP21721528.4A EP4146975A1 (fr) | 2020-05-05 | 2021-04-27 | Cuve étanche et thermiquement isolante comprenant des éléments de remplissage anti-convectif |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR2004425A FR3109979B1 (fr) | 2020-05-05 | 2020-05-05 | Cuve étanche et thermiquement isolante comprenant des éléments de remplissage anti-convectif |
FRFR2004425 | 2020-05-05 |
Publications (1)
Publication Number | Publication Date |
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WO2021224071A1 true WO2021224071A1 (fr) | 2021-11-11 |
Family
ID=72356071
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/EP2021/061023 WO2021224071A1 (fr) | 2020-05-05 | 2021-04-27 | Cuve étanche et thermiquement isolante comprenant des éléments de remplissage anti-convectif |
Country Status (8)
Country | Link |
---|---|
US (1) | US12038137B2 (fr) |
EP (1) | EP4146975A1 (fr) |
KR (1) | KR102428907B1 (fr) |
CN (1) | CN113906252B (fr) |
CA (1) | CA3176441A1 (fr) |
FR (1) | FR3109979B1 (fr) |
MX (1) | MX2022013421A (fr) |
WO (1) | WO2021224071A1 (fr) |
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NO20042702D0 (no) * | 2004-06-25 | 2004-06-25 | Det Norske Veritas As | Cellular tanks for storage of fluids at tow temperatures, and cell structure for use in a tank |
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- 2020-05-05 FR FR2004425A patent/FR3109979B1/fr active Active
-
2021
- 2021-04-27 WO PCT/EP2021/061023 patent/WO2021224071A1/fr unknown
- 2021-04-27 EP EP21721528.4A patent/EP4146975A1/fr active Pending
- 2021-04-27 KR KR1020217031189A patent/KR102428907B1/ko active IP Right Grant
- 2021-04-27 CN CN202180002584.4A patent/CN113906252B/zh active Active
- 2021-04-27 US US17/997,601 patent/US12038137B2/en active Active
- 2021-04-27 CA CA3176441A patent/CA3176441A1/fr active Pending
- 2021-04-27 MX MX2022013421A patent/MX2022013421A/es unknown
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WO2017103500A1 (fr) | 2014-12-15 | 2017-06-22 | Gaztransport Et Technigaz | Bloc isolant convenant pour realiser une paroi isolante dans une cuve etanche |
WO2017006044A1 (fr) | 2015-07-06 | 2017-01-12 | Gaztransport Et Technigaz | Cuve etanche et thermiquement isolante ayant une membrane d'etancheite secondaire equipee d'un arrangement d'angle a toles metalliques ondulees |
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WO2019102163A1 (fr) * | 2017-11-27 | 2019-05-31 | Gaztransport Et Technigaz | Cuve etanche et thermiquement isolante |
Also Published As
Publication number | Publication date |
---|---|
US12038137B2 (en) | 2024-07-16 |
FR3109979A1 (fr) | 2021-11-12 |
US20230184383A1 (en) | 2023-06-15 |
CN113906252B (zh) | 2023-06-30 |
EP4146975A1 (fr) | 2023-03-15 |
CA3176441A1 (fr) | 2021-11-11 |
MX2022013421A (es) | 2023-01-19 |
FR3109979B1 (fr) | 2022-04-08 |
KR20210137076A (ko) | 2021-11-17 |
CN113906252A (zh) | 2022-01-07 |
KR102428907B1 (ko) | 2022-08-04 |
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