NO329009B1 - Cylinder tank for transport and storage of cooled liquid gas on a liquid unit - Google Patents
Cylinder tank for transport and storage of cooled liquid gas on a liquid unit Download PDFInfo
- Publication number
- NO329009B1 NO329009B1 NO20075996A NO20075996A NO329009B1 NO 329009 B1 NO329009 B1 NO 329009B1 NO 20075996 A NO20075996 A NO 20075996A NO 20075996 A NO20075996 A NO 20075996A NO 329009 B1 NO329009 B1 NO 329009B1
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- Norway
- Prior art keywords
- tank
- frames
- construction according
- struts
- hull
- Prior art date
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- 239000007788 liquid Substances 0.000 title claims abstract description 16
- 238000003860 storage Methods 0.000 title claims description 5
- 230000033001 locomotion Effects 0.000 claims abstract description 11
- 238000010276 construction Methods 0.000 claims description 21
- 238000007667 floating Methods 0.000 claims description 17
- 230000002787 reinforcement Effects 0.000 claims description 5
- 239000011810 insulating material Substances 0.000 claims description 3
- 230000003014 reinforcing effect Effects 0.000 claims 1
- 239000012530 fluid Substances 0.000 abstract description 5
- 239000003915 liquefied petroleum gas Substances 0.000 description 8
- 239000003351 stiffener Substances 0.000 description 8
- 239000007789 gas Substances 0.000 description 7
- 238000009413 insulation Methods 0.000 description 5
- 239000012528 membrane Substances 0.000 description 4
- 230000004888 barrier function Effects 0.000 description 3
- 239000012774 insulation material Substances 0.000 description 3
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 239000004411 aluminium Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000001273 butane Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000009422 external insulation Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material 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
- 239000001294 propane Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
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- 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
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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
-
- 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
- B63B25/14—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods fluid closed pressurised
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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
- F17C2201/00—Vessel construction, in particular geometry, arrangement or size
- F17C2201/01—Shape
- F17C2201/0104—Shape cylindrical
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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
- F17C2201/00—Vessel construction, in particular geometry, arrangement or size
- F17C2201/01—Shape
- F17C2201/0104—Shape cylindrical
- F17C2201/0109—Shape cylindrical with exteriorly curved end-piece
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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
- F17C2201/00—Vessel construction, in particular geometry, arrangement or size
- F17C2201/01—Shape
- F17C2201/0104—Shape cylindrical
- F17C2201/0119—Shape cylindrical with flat end-piece
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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
- F17C2201/00—Vessel construction, in particular geometry, arrangement or size
- F17C2201/01—Shape
- F17C2201/0147—Shape complex
- F17C2201/0166—Shape complex divided in several chambers
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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
- F17C2201/00—Vessel construction, in particular geometry, arrangement or size
- F17C2201/03—Orientation
- F17C2201/032—Orientation with substantially vertical main axis
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2201/00—Vessel construction, in particular geometry, arrangement or size
- F17C2201/05—Size
- F17C2201/052—Size large (>1000 m3)
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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
- F17C2203/01—Reinforcing or suspension means
- F17C2203/011—Reinforcing means
- F17C2203/013—Reinforcing means in the vessel, e.g. columns
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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
- F17C2203/01—Reinforcing or suspension means
- F17C2203/014—Suspension means
- F17C2203/015—Bars
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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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- 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
- F17C2203/0626—Multiple walls
- F17C2203/0629—Two walls
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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
- F17C2203/0636—Metals
- F17C2203/0639—Steels
- F17C2203/0643—Stainless steels
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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
- F17C2203/0636—Metals
- F17C2203/0646—Aluminium
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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
- F17C2209/00—Vessel construction, in particular methods of manufacturing
- F17C2209/22—Assembling processes
- F17C2209/221—Welding
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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
- F17C2209/00—Vessel construction, in particular methods of manufacturing
- F17C2209/23—Manufacturing of particular parts or at special locations
- F17C2209/232—Manufacturing of particular parts or at special locations of walls
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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
- F17C2260/00—Purposes of gas storage and gas handling
- F17C2260/01—Improving mechanical properties or manufacturing
- F17C2260/011—Improving strength
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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
- F17C2260/01—Improving mechanical properties or manufacturing
- F17C2260/016—Preventing slosh
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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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Ocean & Marine Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
En tankkonstruksjon for transport og lagring av nedkjølt, flytende gass, hvor tanken (1) er tilpasset for plassering inne i skroget til en flytende enhet (2), idet tanken (1) omfatter indre hudplater (3) som er anordnet som en sylinder med vertikal akse, og hudplater (4, 5) i tankens topp og bunn. På hudplatene (3, 4, 5) er det innvendig i tanken påsveiset et sett med horisontalt og vertikalt forløpende rammer (11, 12) og horisontalt forløpende stivere (10) i den hensikt å bidra til å oppta innvendige belastninger og til å redusere væskebevegelser i tanken (1) når flyteenheten (2) beveger seg.A tank structure for transporting and storing cooled liquid gas, wherein the tank (1) is adapted for placement within the hull of a liquid unit (2), the tank (1) comprising inner skin plates (3) arranged as a cylinder with vertical axis, and skin plates (4, 5) at the top and bottom of the tank. On the skin plates (3, 4, 5), a set of horizontally and vertically extending frames (11, 12) and horizontally extending struts (10) are welded to the interior of the tank in order to help absorb internal loads and reduce fluid movement. in the tank (1) as the float unit (2) moves.
Description
Oppfinnelsen angår en tankkonstruksjon for transport og lagring av nedkjølt, flytende gass, hvor tanken tilpasset for plassering inne i skroget til en flytende enhet, idet tanken omfatter indre hudplater som er anordnet som en sylinder med vertikal akse, og hudplater i tankens topp og bunn. En flyteenhet i form av en sylinderformet plattform av den aktuelle type er eksempelvis beskrevet i norsk patentskrift nr. 319 971. Et annet relevant eksempel på en tankkonstruksjon for transport og lagring av nedkjølt, flytende gass, og hvor tanken er anordnet som en sylinder, er fremstilt i US 3863408 Al The invention relates to a tank construction for the transport and storage of chilled, liquefied gas, where the tank is adapted for placement inside the hull of a floating unit, the tank comprising inner skin plates which are arranged as a cylinder with a vertical axis, and skin plates in the top and bottom of the tank. A floating unit in the form of a cylinder-shaped platform of the type in question is described, for example, in Norwegian patent document no. 319 971. Another relevant example of a tank construction for the transport and storage of cooled, liquefied gas, and where the tank is arranged as a cylinder, is made in US 3863408 Al
Dagens teknologi for transport og lagring av nedkjølt, flytende gass er i hovedsak basert på tre ulike konstruksjonsutfonninger. Med utgangspunkt i tanker anordnet i et skip kan disse tre konstruksjonstyper kort beskrives som følger: • Kuletanker bygget av aluminium. Tankene er selvbærende og er opplagret i skipsskroget på et "magnetbelte". • Membrantanker som består av tynne plater av rustfritt stål som ligger an mot en isolasjon. Stålplatene i denne konstruksjon bidrar ikke som styrkeelement, men bare som tetning mot gass. De tynne stålplatene er arrangert med en viss korrugering for å ta opp deformasjoner som skyldes temperaturvariasjoner. I membrantanker vil det oftest være to membranlag da det er en viss fare for punktering av de tynne membranplatene. • Selvbærende "konvensjonelle" tanker. Dette er tanker som kan bygges av rustfritt stål eller aluminium. Konseptet er basert på at det bygges frittstående, selvbærende tanker som plasseres i rom/tanker i skipsskroget. Today's technology for the transport and storage of chilled, liquefied gas is mainly based on three different construction inventions. Based on tanks arranged in a ship, these three types of construction can be briefly described as follows: • Ball tanks built from aluminium. The tanks are self-supporting and are stored in the ship's hull on a "magnetic belt". • Membrane tanks that consist of thin plates of stainless steel that rest against an insulation. The steel plates in this construction do not contribute as a strength element, but only as a seal against gas. The thin steel plates are arranged with a certain corrugation to absorb deformations caused by temperature variations. In membrane tanks, there will usually be two membrane layers as there is a certain risk of puncturing the thin membrane plates. • Self-supporting "conventional" tanks. These are tanks that can be built from stainless steel or aluminium. The concept is based on building independent, self-supporting tanks that are placed in rooms/tanks in the ship's hull.
Ved tankanlegg på land er det to hovedtyper som benyttes: For tank facilities on land, there are two main types used:
• Tanker som ligger nedgrad i bakken, sylindriske eller med annen form. • Tanks that lie downhill in the ground, cylindrical or of a different shape.
• Tanker bygget som en kort vertikal sylinder der innvendig trykk bæres av ringspenninger i sylinderen. Tankene har flat bunn og ofte et buet tak med sfærisk form. • Tanks built as a short vertical cylinder where internal pressure is carried by ring stresses in the cylinder. The tanks have a flat bottom and often a curved roof with a spherical shape.
For alle de aktuelle utforminger er tankene isolert på utsiden av platene som danner selve tanken. Isolasjonen må være tilstrekkelig for å holde gass lagret på temperaturer ned mot -170 °C uten at det er for stor varmegjennomgang. Dette er viktig for å redusere avdamping og for å hindre at omliggende strukturer får for lave temperaturer. Tanken må også ha en utvendig barriere eller et oppsaml ingsarrangement for å fange opp eventuelle lekkasjer. For all the current designs, the tanks are insulated on the outside of the plates that form the tank itself. The insulation must be sufficient to keep gas stored at temperatures down to -170 °C without excessive heat transfer. This is important to reduce evaporation and to prevent surrounding structures from getting too low temperatures. The tank must also have an external barrier or a collection arrangement to capture any leaks.
Det er et formål med oppfinnelsen å tilveiebringe en tankkonstruksjon som er egnet for bygging av store tanker som kan plasseres inne i skroget til en sylinderformet flyteenhet, f.eks. med en diameter på rundt 80 m og en høyde på 30-40 m (ca. 200 000 m<3>).It is an object of the invention to provide a tank structure which is suitable for the construction of large tanks which can be placed inside the hull of a cylindrical floating unit, e.g. with a diameter of around 80 m and a height of 30-40 m (approx. 200,000 m<3>).
Et annet formål med oppfinnelsen er å tilveiebringe en slik tankkonstruksjon som er forsynt med en indre avstivning som er egnet til å oppta krefter fra innvendig trykk, å oppta sidekrefter som skyldes bevegelser av flyteenheten, og å redusere væskebevegelser i tanken når flyteenheten beveger seg. Another object of the invention is to provide such a tank construction which is provided with an internal bracing which is suitable to absorb forces from internal pressure, to absorb lateral forces due to movements of the floating unit, and to reduce liquid movements in the tank when the floating unit moves.
Ovennevnte formål oppnås med en tankkonstruksjon av den innledningsvis angitte type som ifølge oppfinnelsen er kjennetegnet ved at det på hudplatene innvendig i tanken er påsveiset et sett med rammer og stivere i den hensikt å bidra til oppta innvendige belastninger og til å redusere væskebevegelser i tanken når flyteenheten beveger seg. The above purpose is achieved with a tank construction of the type indicated at the outset which, according to the invention, is characterized by the fact that a set of frames and struts are welded onto the skin plates inside the tank with the intention of helping to absorb internal loads and to reduce fluid movements in the tank when the floating unit moves.
En fordelaktig utførelse av tankkonstruksjonen ifølge oppfinnelsen er kjennetegnet ved at rammene danner et rutemønster i den sylindriske del av tanken, idet de er anordnet både i vertikal og horisontal retning. An advantageous embodiment of the tank construction according to the invention is characterized by the fact that the frames form a grid pattern in the cylindrical part of the tank, as they are arranged in both vertical and horizontal directions.
Det er videre fordelaktig at stiverne er anordnet som horisontalt forløpende ringstivere som er understøttet av de vertikale rammer. It is further advantageous that the struts are arranged as horizontally extending ring struts which are supported by the vertical frames.
De horisontale rammer og ringstiverne vil i den sirkulære del av tanken bidra til å bære ringspenninger sammen med hudplatene. Dette gjør det mulig å bygge store tanker med platetykkelser som ikke blir for store. Kreftene som skal tas opp fordeles mellom stiverne, rammene og platene. Rammene i den øvre del av tanken kan utformes med tilstrekkelig styrke til at de kan bære takkonstruksjonen i tanken. In the circular part of the tank, the horizontal frames and ring stiffeners will help to carry ring stresses together with the skin plates. This makes it possible to build large tanks with plate thicknesses that are not too large. The forces to be taken up are distributed between the struts, frames and plates. The frames in the upper part of the tank can be designed with sufficient strength to support the roof structure in the tank.
Ett av hovedproblemene ved dagens LNG-tanker i skip er problemer knyttet til væskebevegelse og væskeslag (sloshing) i LNG-tankene. Dette gjelder spesielt ved tanker som bare er delvis fylt opp, noe som vil være situasjonen i lengre perioder ved produksjon av LNG. Væskeslag vil i en åpen tank gi store lokale trykkrefter. Dette kan lett gi skader både på tankkonstruksjonen og på underliggende isolasjonsmateriale. I den foreslåtte konstruksjon vil arrangementet med stivere og rammer hindre at det oppstår væskebevegelser som resulterer i væskeslag med høye trykk. Også effekter som roterende væskebevegelse (swirling) vil bli betydelig redusert av de vertikale rammene. One of the main problems with today's LNG tanks in ships is problems related to liquid movement and liquid impact (sloshing) in the LNG tanks. This applies in particular to tanks that are only partially filled, which will be the situation for longer periods when producing LNG. Liquid impact in an open tank will produce large local pressure forces. This can easily cause damage to both the tank structure and the underlying insulation material. In the proposed construction, the arrangement of struts and frames will prevent fluid movements that result in high-pressure fluid impacts. Effects such as rotating liquid movement (swirling) will also be significantly reduced by the vertical frames.
Sylindertanken vil langs sidene og i den øvre del være isolert med et egnet materiale. I disse områder er det ikke noe behov for isolasjonsmateriale som skal overføre laster fra tanken og over i hovedskroget. Under bunnen av tanken vil det bli isolert med et isolasjonsmateriale som har tilstrekkelig styrke til å overføre trykkreftene fra bunnplatene over i bunnkonstruksjonen i hovedskroget. The cylinder tank will be insulated along the sides and in the upper part with a suitable material. In these areas, there is no need for insulation material to transfer loads from the tank into the main hull. Underneath the bottom of the tank, it will be insulated with an insulating material that has sufficient strength to transfer the pressure forces from the bottom plates into the bottom structure in the main hull.
Indre trykk fra væske i tanken vil i bunnplatene bli overført direkte til underlaget. Det vil derfor ikke være behov for å lage avstivinger på bunnplatene for å øke styrken i platene. Rammer og stivere i bunnen vil imidlertid bli arrangert for å redusere væskebevegelsen når det er lite fylling i tankene. Internal pressure from liquid in the tank will be transferred directly to the substrate in the bottom plates. There will therefore be no need to make stiffeners on the bottom plates to increase the strength of the plates. However, frames and struts at the bottom will be arranged to reduce liquid movement when there is little filling in the tanks.
De sylindriske sideplater vil få ringspenninger på grunn av væsketrykk. Ved store diametre vil dette stille store krav til tykkelsen på platene i sylinderen. For å redusere platetykkelsen i sylinderen er det som nevnt anordnet horisontale ringstivere som bidrar til å bære ringspenningene. I tillegg er det anordnet et sett med rammer både i vertikal (aksial) og horisontal ringretning (tangentielt). Hensikten med rammene er delvis å danne understøttelse for de horisontale stivere som er opplagret i de vertikale rammer, delvis for å gi en understøttelse for å kunne overføre horisontale krefter fra sylindertanken og over i det ytre skrog, og delvis for å gi en effektiv dempning av bølgebevegelser som kan oppstå i en tank som er i bevegelse. Stiverne vil også effektivt redusere effekten av væskeslag (sloshing) i tankene. Ved uavstivede plane flater kan væskeslag gi svært høye lokale laster. The cylindrical side plates will experience ring stresses due to fluid pressure. In the case of large diameters, this will place great demands on the thickness of the plates in the cylinder. In order to reduce the plate thickness in the cylinder, as mentioned, horizontal ring stiffeners are arranged to help support the ring stresses. In addition, a set of frames is arranged both in the vertical (axial) and horizontal ring direction (tangential). The purpose of the frames is partly to form support for the horizontal struts which are stored in the vertical frames, partly to provide a support to be able to transfer horizontal forces from the cylinder tank into the outer hull, and partly to provide an effective damping of wave motions that can occur in a moving tank. The struts will also effectively reduce the effect of liquid impact (sloshing) in the tanks. In the case of unbraced flat surfaces, liquid impact can cause very high local loads.
Når flyteenheten utsettes for bølger som kan gi sidebevegelser eller krengning (rulling eller stamping), vil det oppstå sidekrefter i tanken. Sidekrefter vil også komme som et resultat av krengning som skyldes for eksempel skader i ballasttanker e.l. Begge disse lastsituasjoner må det tas høyde for ved konstruksjon av de sylindriske tanker. For å ta opp sidekreftene er det arrangert anleggspunkter mellom den indre sylindertank og det ytre hovedskroget i flyteenheten. Anleggspunktene vil bli plassert i krysningspunktene mellom vertikale og horisontale rammer. When the floating unit is exposed to waves that can cause lateral movements or heeling (rolling or pounding), lateral forces will arise in the tank. Lateral forces will also occur as a result of heeling caused, for example, by damage to ballast tanks etc. Both of these load situations must be taken into account when designing the cylindrical tanks. In order to take up the lateral forces, attachment points have been arranged between the inner cylinder tank and the outer main hull in the floating unit. The installation points will be placed at the crossing points between vertical and horizontal frames.
Den øvre del av tanken (taket) er utsatt for et mindre væsketrykk, men kan få tilleggslaster som skyldes bølger i tanken. Denne øvre del av tanken vil fortrinnsvis bli bygget som en selvbærende takkonstruksjon der innvendige rammer sammen med hudplatene danner en konstruksjon med tilstrekkelig styrke. Alternativt kan den henges opp i dekkstrukturen i hovedskroget. The upper part of the tank (the roof) is exposed to a lower liquid pressure, but can receive additional loads due to waves in the tank. This upper part of the tank will preferably be built as a self-supporting roof construction where internal frames together with the skin plates form a construction with sufficient strength. Alternatively, it can be suspended in the deck structure in the main hull.
Oppfinnelsen skal beskrives nærmere i det følgende i forbindelse med utførelseseksempler under henvisning til tegningene, der The invention shall be described in more detail in the following in connection with embodiment examples with reference to the drawings, there
fig. 1 viser et aksialt snittriss av en tank i følge oppfinnelsen som er plassert i et sylinderformet skrog av en flyteenhet, fig. 1 shows an axial sectional view of a tank according to the invention which is placed in a cylindrical hull of a floating unit,
fig. 2 viser et horisontalt snitt etter linjen II-II på fig. 1, fig. 2 shows a horizontal section along the line II-II in fig. 1,
fig. 3 viser detaljer av den indre avstivning i tanken på fig. 1, fig. 3 shows details of the internal bracing in the tank of fig. 1,
fig. 4 viser et utsnitt av tanken på fig. 1 i perspektiv, fig. 4 shows a section of the tank in fig. 1 in perspective,
fig. 5 viser detaljen A på fig. 3 i forstørret målestokk, fig. 5 shows detail A in fig. 3 on an enlarged scale,
fig. 6 viser detaljen B på fig. 3 i forstørret målestokk, fig. 6 shows detail B in fig. 3 on an enlarged scale,
fig. 7 viser et forstørret snitt gjennom tankveggen og viser utvendig isolasjon og en støtteblokk som er anbrakt mellom tankveggen og flyteenhetens ytre skrog, fig. 7 shows an enlarged section through the tank wall and shows external insulation and a support block placed between the tank wall and the outer hull of the floating unit,
fig. 8 viser et forstørret delsnitt gjennom en sekundær barriere i forbindelse med isolasjon under tankens bunn, fig. 8 shows an enlarged partial section through a secondary barrier in connection with insulation under the bottom of the tank,
fig. 9 viser et snitt gjennom en struktur for overføring av horisontale krefter fra tanken til en dobbeltbunn av flyteenheten i hvilken tanken er anbrakt, fig. 9 shows a section through a structure for transferring horizontal forces from the tank to a double bottom of the floating unit in which the tank is placed,
fig. 10 viser et aksialt snittriss av en tank ifølge oppfinnelsen hvor bunntanker for LPG etc. er anordnet under tanken, fig. 10 shows an axial sectional view of a tank according to the invention where bottom tanks for LPG etc. are arranged below the tank,
fig. 11 viser et snitt etter linjen Xl-XI på fig. 10, fig. 11 shows a section along the line Xl-XI in fig. 10,
fig. 12 viser et aksialt snittriss av en tank ifølge oppfinnelsen som er forsynt med sidetanker for LPG etc, og fig. 12 shows an axial sectional view of a tank according to the invention which is provided with side tanks for LPG etc, and
fig. 13 viser et snitt etter linjen XIII-XIII på fig. 12. fig. 13 shows a section along the line XIII-XIII in fig. 12.
På fig. 1-4 er det vist en sirkulærsylindrisk tank 1 ifølge oppfinnelsen som er plassert inne i skroget til en flyteenhet som i den viste utførelse er i form av en sylinderformet plattform 2. Selv om oppfinnelsen vil bli beskrevet i forbindelse med en sylinderformet plattform, vil det være klart at tanken også kan benyttes om bord i et skip, f.eks. en LNG-tanker. In fig. 1-4 shows a circular cylindrical tank 1 according to the invention which is placed inside the hull of a floating unit which in the shown embodiment is in the form of a cylindrical platform 2. Although the invention will be described in connection with a cylindrical platform, it will be clear that the tank can also be used on board a ship, e.g. an LNG tanker.
Tanken 1 omfatter indre hudplater 3 som danner en sylinder med vertikal akse A-A, og hudplater 4 og 5 i henholdsvis toppen og bunnen av tanken. Hudplatene 3 og 4 i den sylindriske tankvegg og i toppen av tanken ligger an mot en ytre isolasjon 6 hhv. 7. Tanken 1 står på et isolert fundament 8 som hviler på en dobbeltbunn 9 i plattformen. The tank 1 comprises inner skin plates 3 which form a cylinder with vertical axis A-A, and skin plates 4 and 5 at the top and bottom of the tank respectively. The skin plates 3 and 4 in the cylindrical tank wall and in the top of the tank rest against an outer insulation 6 respectively. 7. The tank 1 stands on an insulated foundation 8 which rests on a double bottom 9 in the platform.
I overensstemmelse med oppfinnelsen er tanken 1 forsynt med en innvendig forsterkning ved at det på hudplatene er påsveiset et sett med horisontalt forløpende ringstivere 10 og et sett med horisontalt og vertikalt forløpende rammer 11 hhv. 12. Slik som foran nevnt, er hensikten med de horisontale ringstivere 10 å bidra til å bære ringspenninger i tankveggen, mens hensikten med rammene er delvis å danne understøttelse for ringstiverne 10 som er opplagret i de vertikale rammer 12, og delvis å gi understøttelse for å kunne overføre horisontale krefter fra sylindertanken og over i det ytre plattformskrog. Ringstiverne vil også gi en effektiv reduksjon og delvis eliminering av lokale trykk som skyldes væskeslag (sloshing). De horisontale rammer i ringretningen vil effektivt redusere dannelse av bølger i tanken, og de vertikale rammer vil redusere risikoen for å få roterende bølger i tanken (swirling). In accordance with the invention, the tank 1 is provided with an internal reinforcement by welding on the skin plates a set of horizontally extending ring stiffeners 10 and a set of horizontally and vertically extending frames 11 respectively. 12. As mentioned above, the purpose of the horizontal ring stiffeners 10 is to help carry ring stresses in the tank wall, while the purpose of the frames is partly to form support for the ring stiffeners 10 which are stored in the vertical frames 12, and partly to provide support for to be able to transfer horizontal forces from the cylinder tank into the outer platform hull. The ring stiffeners will also provide an effective reduction and partial elimination of local pressures caused by liquid impact (sloshing). The horizontal frames in the ring direction will effectively reduce the formation of waves in the tank, and the vertical frames will reduce the risk of getting rotating waves in the tank (swirling).
For å oppta opptredende sidekrefter i tanken, er det anordnet anleggspunkter mellom sylindertanken 1 og det ytre hovedskrog av flyteenheten 2. Disse anleggspunkter er på tegningene vist som støtteblokker 13 som er plassert i krysningspunkter mellom horisontale og vertikale rammer 11 hhv. 12. In order to absorb lateral forces occurring in the tank, anchor points are arranged between the cylinder tank 1 and the outer main hull of the floating unit 2. These anchor points are shown in the drawings as support blocks 13 which are placed at crossing points between horizontal and vertical frames 11 or 12.
Detaljene A og B på fig. 3 er vist i større målestokk på fig. 5 og 6. Details A and B in fig. 3 is shown on a larger scale in fig. 5 and 6.
Slik det fremgår av fig. 5, er de horisontale ringstivere 10 som er fastsveiset til hudplatene 3 opplagret i slisser i de vertikale rammer 12. Slik som antydet på figuren, er rammene forsynt med en indre kantflens 14 som har tilstrekkelig bredde til å motstå forventede krefter. På figuren er det videre vist en struktur 15 som strekker seg gjennom isolasjonen 6 mellom de horisontale rammer 11 og støtteblokkene 13, for overføring av belastninger i radial retning til støtteblokkene som ligger an mot plattformens 2 skrog. As can be seen from fig. 5, the horizontal ring stiffeners 10 which are welded to the skin plates 3 are stored in slots in the vertical frames 12. As indicated in the figure, the frames are provided with an inner edge flange 14 which has sufficient width to withstand expected forces. The figure also shows a structure 15 which extends through the insulation 6 between the horizontal frames 11 and the support blocks 13, for transferring loads in the radial direction to the support blocks which abut the platform 2 hull.
Fig. 7 er et skjematisk perspektivriss som viser et utsnitt av tankveggen, og som stort sett svarer til fig. 5. Fig. 8 viser et forstørret delsnitt av et nedre hjørneområde av tanken og det underliggende fundament 8. Isolasjonsmaterialet i fundamentet omfatter to lag mellom hvilke det er anbrakt en platekonstruksjon 16 som utgjør en sekundær barriere som kan fange opp LNG fra en eventuell lekkasje i hovedtanken. Denne plate må ha en utstrekning som sikrer at enhver lekkasje fra hovedtanken vil bli oppfanget. Fig. 9 viser en struktur for overføring av horisontale krefter fra LNG-tanken til dobbeltbunnen 9 i plattformen 2. Strukturen omfatter en forsterkning 17 som er innsveiset i bunnen av tanken og en forsterkning 18 for opptakelse av horisontale krefter og som er innsveiset i dobbeltbunnen, og dessuten ett eller flere overføringselementer 19 som danner en anleggsflate mellom de nevnte forsterkninger og er dannet av et isolerende materiale, f.eks. tre. Fig. 7 is a schematic perspective view showing a section of the tank wall, which largely corresponds to fig. 5. Fig. 8 shows an enlarged partial section of a lower corner area of the tank and the underlying foundation 8. The insulation material in the foundation comprises two layers between which a plate structure 16 is placed which forms a secondary barrier that can capture LNG from a possible leak in the main idea. This plate must have an extent that ensures that any leakage from the main tank will be caught. Fig. 9 shows a structure for transferring horizontal forces from the LNG tank to the double bottom 9 in platform 2. The structure comprises a reinforcement 17 which is welded into the bottom of the tank and a reinforcement 18 for absorbing horizontal forces which is welded into the double bottom, and furthermore one or more transfer elements 19 which form a contact surface between the aforementioned reinforcements and are formed of an insulating material, e.g. three.
Strukturen er et alternativ til å overføre opptredende sidekrefter via de foran-nevnte støtteblokker 13 som ligger an mot siden av plattformen. Dette er krefter som oppstår som følge av horisontale akselerasjoner eller fra krengning av plattformen. The structure is an alternative to transferring occurring lateral forces via the above-mentioned support blocks 13 which lie against the side of the platform. These are forces that arise as a result of horizontal accelerations or from tilting of the platform.
Ved produksjon av gass vil det ofte være flere ulike produkter som produseres. Det vanlige er at det i tillegg til produksjon av LNG også produseres kondensat og LPG (Liquefied Petroleum Gas). LPG er tyngre gassfraksjoner som kan lagres ved høyere temperatur enn LNG, f.eks. propan og butan. When producing gas, there will often be several different products that are produced. The usual thing is that in addition to the production of LNG, condensate and LPG (Liquefied Petroleum Gas) are also produced. LPG are heavier gas fractions that can be stored at a higher temperature than LNG, e.g. propane and butane.
På fig. 10-13 er det vist to utførelser av tankkonstruksjonen der tanker for kondensat og LPG er inntegnet som en del av arrangementet i det store indre sylindervolum i plattformen 2. Således viser fig. 10 og 11 en utførelse der bunntanker 20 for LPG/kondensat er plassert under hovedtanken 1 for LNG, over det understøttende fundament 8. Videre viser fig. 12 og 13 en utførelse der et antall sidetanker 21 for LPG/kondensat er anordnet inne i hovedtanken 1, rundt dennes omkrets. Kondensattanker har ikke behov for nedkjøling, og de kan derfor med fordel plasseres i den ytre del av plattformskroget. In fig. 10-13 two versions of the tank construction are shown where tanks for condensate and LPG are drawn as part of the arrangement in the large inner cylinder volume in platform 2. Thus fig. 10 and 11 an embodiment where bottom tanks 20 for LPG/condensate are placed below the main tank 1 for LNG, above the supporting foundation 8. Furthermore, fig. 12 and 13 an embodiment where a number of side tanks 21 for LPG/condensate are arranged inside the main tank 1, around its circumference. Condensate tanks do not need cooling, and they can therefore be advantageously placed in the outer part of the platform hull.
Claims (8)
Priority Applications (2)
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NO20075996A NO329009B1 (en) | 2007-11-21 | 2007-11-21 | Cylinder tank for transport and storage of cooled liquid gas on a liquid unit |
PCT/NO2008/000397 WO2009067017A1 (en) | 2007-11-21 | 2008-11-07 | Cylindrical tank for transport and storage of chilled, liquified gas on a floating unit, with provisions for reducing liquid movements and absorbing deformations due to variations of the internal load |
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NO20075996A NO329009B1 (en) | 2007-11-21 | 2007-11-21 | Cylinder tank for transport and storage of cooled liquid gas on a liquid unit |
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NO331387B1 (en) * | 2009-10-29 | 2011-12-12 | Aker Engineering & Technology | A COMPOSITION OF ORTOGONAL TENSIONS IN A TANK, AND DISTANCE ELEMENTS FOR USE IN THE SAME COMPOSITION |
BR112014000748B1 (en) | 2011-07-28 | 2020-03-31 | Dow Global Technologies Llc | POLYMERIC MIXTURE FORMULATION, MULTILAYER STRUCTURE AND METHOD FOR CONFIGURING A MULTILAYER STRUCTURE |
EP2743171A4 (en) * | 2011-08-13 | 2016-01-20 | Nobuyoshi Morimoto | Lng carrier |
NO335964B1 (en) * | 2012-11-19 | 2015-03-30 | Sevan Marine Asa | Tank system for vessels |
FI20150052A (en) * | 2014-05-06 | 2015-11-07 | Lngtainer Ltd | Container for cryogenic gases |
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FR1457617A (en) * | 1965-09-22 | 1966-01-24 | Technigaz | Watertight fixed tank or the like and method of construction thereof |
US4032608A (en) * | 1974-07-12 | 1977-06-28 | Kaiser Aluminum & Chemical Corporation | Cryogenic liquid containment method |
JPH09254872A (en) * | 1996-03-21 | 1997-09-30 | Kawasaki Heavy Ind Ltd | Sloshing pressure relaxation structure |
NO20042678D0 (en) * | 2004-06-25 | 2004-06-25 | Det Norske Veritas As | Tank for storage of fluids at low temperatures, support means for a tank, sandwich structure for use in a tank and method for manufacturing a tank |
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2007
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Representative=s name: HAMSOE PATENTBYRA ANS, POSTBOKS 171 |
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MM1K | Lapsed by not paying the annual fees |