NO329367B1 - Removable tank top - Google Patents

Removable tank top Download PDF

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Publication number
NO329367B1
NO329367B1 NO20090776A NO20090776A NO329367B1 NO 329367 B1 NO329367 B1 NO 329367B1 NO 20090776 A NO20090776 A NO 20090776A NO 20090776 A NO20090776 A NO 20090776A NO 329367 B1 NO329367 B1 NO 329367B1
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NO
Norway
Prior art keywords
tank
foundation
skirt
cylindrical skirt
changes
Prior art date
Application number
NO20090776A
Other languages
Norwegian (no)
Other versions
NO20090776L (en
Inventor
Kare Syvertsen
Alf Reidar Sandstad
Otto Skjastad
Original Assignee
Sevan Marine Asa
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sevan Marine Asa filed Critical Sevan Marine Asa
Priority to NO20090776A priority Critical patent/NO329367B1/en
Priority to BRPI1008659-5A priority patent/BRPI1008659B1/en
Priority to PCT/NO2010/000061 priority patent/WO2010095951A1/en
Priority to KR1020117021680A priority patent/KR101677780B1/en
Priority to CN201080006256.3A priority patent/CN102300767B/en
Priority to EP10743997.8A priority patent/EP2398696A4/en
Publication of NO20090776L publication Critical patent/NO20090776L/en
Publication of NO329367B1 publication Critical patent/NO329367B1/en

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Classifications

    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C1/00—Pressure vessels, e.g. gas cylinder, gas tank, replaceable cartridge
    • 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
    • F17C7/00—Methods or apparatus for discharging liquefied, solidified, or compressed gases from pressure vessels, not covered by another subclass
    • F17C7/02—Discharging liquefied gases
    • 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
    • B63B2025/087—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods fluid comprising self-contained tanks installed in the ship structure as separate units
    • 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
    • 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
    • F17C2201/0176—Shape variable
    • 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
    • F17C2201/054—Size medium (>1 m3)
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2203/00—Vessel construction, in particular walls or details thereof
    • F17C2203/03—Thermal insulations
    • F17C2203/0304—Thermal insulations by solid means
    • 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
    • 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
    • F17C2205/01—Mounting arrangements
    • F17C2205/0103—Exterior arrangements
    • 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
    • F17C2205/01—Mounting arrangements
    • F17C2205/0153—Details of mounting arrangements
    • F17C2205/018—Supporting feet
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/01—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the phase
    • F17C2223/0146—Two-phase
    • F17C2223/0153—Liquefied gas, e.g. LPG, GPL
    • F17C2223/0161—Liquefied gas, e.g. LPG, GPL cryogenic, e.g. LNG, GNL, PLNG
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/03—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the pressure level
    • F17C2223/033—Small pressure, e.g. for liquefied gas
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2260/00—Purposes of gas storage and gas handling
    • F17C2260/01—Improving mechanical properties or manufacturing
    • 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
    • F17C2260/018—Adapting dimensions
    • 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
    • F17C2260/035—Dealing with losses of fluid
    • F17C2260/036—Avoiding leaks
    • 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

Abstract

Kryogenisk tank for bruk i fartøy, hvor tanken er montert mellom to horisontale fundamenter (8, 9) eller dekk, hvor tanken hviler på det nedre fundamentet (9), tankens topp er forbundet med det øvre fundamentet (8) med et øvre sylindrisk skjørt (7). Det øvre sylindriske skjørtet (7) har en diameter som er mindre enn diameteren av tankens sylindriske del (1) og det øvre sylindriske skjørtet (7) hviler på et indre område av en horisontal ytre del (4) av tankens topp, idet den ytre delen (4) med sin fleksibilitet er innrettet til å oppta endringer av de øvre og nedre fundamentenes (8, 9) posisjoner i forhold til hverandre, samt til å oppta endringer av tankens dimensjon som følge av temperaturendringer.Cryogenic tank for use in vessels where the tank is mounted between two horizontal foundations (8, 9) or deck, where the tank rests on the lower foundation (9), the top of the tank is connected to the upper foundation (8) with an upper cylindrical skirt (7). The upper cylindrical skirt (7) has a diameter smaller than the diameter of the cylindrical part (1) and the upper cylindrical skirt (7) rests on an inner region of a horizontal outer part (4) of the top of the tank, the outer the part (4) with its flexibility is adapted to accommodate changes in the positions of the upper and lower foundations (8, 9) relative to each other, and to accommodate changes in the tank's dimension as a result of temperature changes.

Description

Foreliggende oppfinnelse angår en kryogenisk tank for bruk i fartøy, ifølge kravinnledningen. The present invention relates to a cryogenic tank for use in vessels, according to the preamble.

Især for tanker for kryogenisk gass eller væske, hvor tankene er i bevegelse, så som produksjonsenheter eller transportenheter i fartøy, stilles det svært strenge krav med hensyn til lekkasjer. Slike lekkasjer vil kunne oppstå dersom tanken utsettes for dynamiske belastninger som gir spenninger som igjen kan føre til sprekkdannelser i tankens materiale. Dynamiske belastninger av tanken kan skyldes direkte påkjenninger på tanken selv, eller dynamiske defleksjoner av støtte- og bærestrukturer. Especially for tanks for cryogenic gas or liquid, where the tanks are in motion, such as production units or transport units in vessels, there are very strict requirements with regard to leaks. Such leaks could occur if the tank is exposed to dynamic loads that produce stresses which in turn can lead to cracks in the tank's material. Dynamic loads on the tank can be caused by direct stresses on the tank itself, or dynamic deflections of support and support structures.

Kryogeniske tanker utsettes også for vesentlige defleksjoner på grunn av store temperaturendringer. Dette må kunne håndteres uten å introdusere for høye spenninger i tanken. Det er også viktig å utnytte et fartøys tilgjengelige volum best mulig og ved flere tanker om bord ha en hensiktsmessig tankinndeling med hensyn på redundans og vedlikehold, og hver tank må derfor utformes med tanke på dette. I noen tilfeller er det også viktig at arealet over tanken kan utnyttes, det vi si at den må kunne bygges inn under f.eks. et dekk med utstyr. Cryogenic tanks are also exposed to significant deflections due to large temperature changes. This must be able to be handled without introducing excessive voltages into the tank. It is also important to make the best possible use of a vessel's available volume and, if there are several tanks on board, to have an appropriate tank division with regard to redundancy and maintenance, and each tank must therefore be designed with this in mind. In some cases, it is also important that the area above the tank can be utilized, meaning that it must be able to be built in under e.g. a deck with equipment.

Det eksisterer ulike typer kryogeniske tanker med ulik utforming og opplagring, også slike som tilfredsstiller noen av de forhold som er nevnt ovenfor. Fra den kjente teknikk skal her nevnes patentskriftet US 3 457 622 som omtaler tanker montert mellom to dekk og som hviler på det nederste, og US 6 082 676 for et noe annet fagområde, nemlig for et utskytnings- eller romfartøy, der det brukes et skjørt som underlag for tanken. There are different types of cryogenic tanks with different designs and storage, including those that satisfy some of the conditions mentioned above. From the known technique, mention should be made here of the patent document US 3,457,622 which mentions tanks mounted between two decks and which rest on the lower one, and US 6,082,676 for a somewhat different field, namely for a launch vehicle or spacecraft, where a skirt is used as a substrate for the tank.

Tanken ifølge oppfinnelsen tilfredsstiller imidlertid alle forholdene ovenfor, slik det fremgår av de i kravene anførte trekk. However, the tank according to the invention satisfies all the conditions above, as is evident from the features stated in the claims.

Særlig har denne tank en opplagring som bare utsetter den for små dynamiske spenninger i tanken, slik at defleksjoner i fundamentet og fra temperaturendringer opptas effektivt. Videre oppnås en utmerket utnyttelse av tilgjengelig volum, med en hensiktsmessig tankinndeling. Utførelsen gir også en mulighet for å plassere utstyr på et dekk over tanken. In particular, this tank has a storage which only exposes it to small dynamic stresses in the tank, so that deflections in the foundation and from temperature changes are absorbed effectively. Furthermore, an excellent utilization of the available volume is achieved, with an appropriate tank division. The design also provides an opportunity to place equipment on a deck above the tank.

På tegningen viser den eneste figur et lengdesnitt gjennom en vertikalstilt kryogenisk tank ifølge oppfinnelsen. In the drawing, the only figure shows a longitudinal section through a vertically positioned cryogenic tank according to the invention.

Tanken ifølge oppfinnelsen har en midtre sylindrisk hoveddel 1 og en topplate hvis ytre del 4 er plan (horisontal på figuren), mens dens midtre parti 5 rager noe høyere opp, fortrinnsvis konisk. The tank according to the invention has a central cylindrical main part 1 and a top plate whose outer part 4 is flat (horizontal in the figure), while its middle part 5 projects somewhat higher, preferably conical.

Fra den ytre dels 4 radialt indre del har tanken et øvre (vertikalstilt) sylindrisk skjørt 7 hvis øvre ende er festet mot et øvre fundament 8 eller dekk. Dette øvre skjørt 7 har mindre diameter enn hoveddelens 1 diameter. From the outer part 4 radially to the inner part, the tank has an upper (vertical) cylindrical skirt 7 whose upper end is attached to an upper foundation 8 or deck. This upper skirt 7 has a smaller diameter than the diameter of the main part 1.

Tankens bunn 2 er sfærisk og forbundet med hoveddelen 1 via en overgang 6. Til denne er et nedre sylindrisk skjørt 3 festet, så tanken med støtte kan hvile på et nedre fundament 9 eller dekk. The bottom of the tank 2 is spherical and connected to the main part 1 via a transition 6. To this a lower cylindrical skirt 3 is attached, so the tank with support can rest on a lower foundation 9 or deck.

Siden topplatens ytre del 4 er horisontal når tanken er i posisjon, vil denne del utgjøre en mekanisme som er fleksibel for bevegelser i vertikal retning og effektivt kunne ta opp vertikale defleksjoner som følge av temperaturendringer. Samtidig vil sidekrefter mellom tanken og øvre og nedre fundament 8, 9 effektivt overføres av denne mekanisme. Videre muliggjør dette innebygging av tanken under et øvre fundament 8. Since the outer part 4 of the top plate is horizontal when the tank is in position, this part will constitute a mechanism which is flexible for movements in the vertical direction and can effectively take up vertical deflections as a result of temperature changes. At the same time, lateral forces between the tank and the upper and lower foundations 8, 9 will be effectively transferred by this mechanism. Furthermore, this enables the installation of the tank under an upper foundation 8.

Den kryogeniske tanken ifølge oppfinnelsen kombinerer effektivt lasteopptak fra tankens innhold med effektiv utnyttelse av tilgjengelig volum på steder hvor volumet skal omfatte flere tanker. The cryogenic tank according to the invention combines efficient load absorption from the tank's contents with efficient utilization of the available volume in places where the volume is to include several tanks.

Det nedre skjørt 3 kan hensiktsmessig være utført i et rustfritt materiale som holder varmeledningen liten mellom tanken og fundamentet 9 som skjørtet 3 hviler på. The lower skirt 3 can suitably be made of a stainless material which keeps the heating line small between the tank and the foundation 9 on which the skirt 3 rests.

Claims (3)

1. Kryogenisk tank for bruk i fartøy hvor tanken er montert mellom et øvre og et nedre horisontal fundament (8, 9) eller dekk slik at den hviler på det nedre fundament (9), karakterisert ved at tankens topp har en horisontal ytre del (4) som i samvirke med et øvre sylindrisk skjørt (7) som strekker seg oppover fra et indre område av denne del (4) for forbindelse med det øvre fundament (8), danner en fleksibel mekanisme innrettet for å oppta endringer av fundamentenes (8, 9) posisjon i forhold til hverandre og endringer av tankens dimensjon som følge av temperaturendringer, idet skjørtet (7) har en diameter som er mindre enn diameteren av en sylindrisk hoveddel (1) av tanken.1. Cryogenic tank for use in vessels where the tank is mounted between an upper and a lower horizontal foundation (8, 9) or deck so that it rests on the lower foundation (9), characterized in that the top of the tank has a horizontal outer part ( 4) which, in cooperation with an upper cylindrical skirt (7) extending upwards from an inner area of this part (4) for connection with the upper foundation (8), forms a flexible mechanism adapted to accommodate changes of the foundations (8 , 9) position in relation to each other and changes in the tank's dimension as a result of temperature changes, the skirt (7) having a diameter smaller than the diameter of a cylindrical main part (1) of the tank. 2. Tank ifølge krav 1, karakterisert ved at det øvre sylindriske skjørt (7) er innrettet til å overføre sideveis krefter mellom tanken og det øvre fundament (8).2. Tank according to claim 1, characterized in that the upper cylindrical skirt (7) is designed to transmit lateral forces between the tank and the upper foundation (8). 3. Tank ifølge krav 1-2, karakterisert ved å omfatte et nedre sylindrisk skjørt (3) for forbindelse med det nedre fundament (9) og innrettet til å oppta både aksiale og sideveis krefter.3. Tank according to claims 1-2, characterized by comprising a lower cylindrical skirt (3) for connection with the lower foundation (9) and arranged to absorb both axial and lateral forces.
NO20090776A 2009-02-18 2009-02-18 Removable tank top NO329367B1 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
NO20090776A NO329367B1 (en) 2009-02-18 2009-02-18 Removable tank top
BRPI1008659-5A BRPI1008659B1 (en) 2009-02-18 2010-02-18 FLEXIBLE TOP TANK
PCT/NO2010/000061 WO2010095951A1 (en) 2009-02-18 2010-02-18 Flexible upper tank
KR1020117021680A KR101677780B1 (en) 2009-02-18 2010-02-18 Flexible upper tank
CN201080006256.3A CN102300767B (en) 2009-02-18 2010-02-18 Flexible upper tank
EP10743997.8A EP2398696A4 (en) 2009-02-18 2010-02-18 Flexible upper tank

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NO20090776A NO329367B1 (en) 2009-02-18 2009-02-18 Removable tank top

Publications (2)

Publication Number Publication Date
NO20090776L NO20090776L (en) 2010-08-19
NO329367B1 true NO329367B1 (en) 2010-10-04

Family

ID=42634070

Family Applications (1)

Application Number Title Priority Date Filing Date
NO20090776A NO329367B1 (en) 2009-02-18 2009-02-18 Removable tank top

Country Status (6)

Country Link
EP (1) EP2398696A4 (en)
KR (1) KR101677780B1 (en)
CN (1) CN102300767B (en)
BR (1) BRPI1008659B1 (en)
NO (1) NO329367B1 (en)
WO (1) WO2010095951A1 (en)

Citations (2)

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Publication number Priority date Publication date Assignee Title
US3457622A (en) * 1964-12-28 1969-07-29 Exxon Research Engineering Co Method of installing a sealing means in a cryogenic tanker construction
US6082676A (en) * 1998-02-25 2000-07-04 Kistler Aerospace Corporation Cryogenic tanks for launch vehicles

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US347622A (en) * 1886-08-17 Chaeles m
NL226541A (en) * 1957-04-05
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