US3820491A - Low temperature liquefied gas tanker ship equipped with membranous vessels - Google Patents

Low temperature liquefied gas tanker ship equipped with membranous vessels Download PDF

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Publication number
US3820491A
US3820491A US00238347A US23834772A US3820491A US 3820491 A US3820491 A US 3820491A US 00238347 A US00238347 A US 00238347A US 23834772 A US23834772 A US 23834772A US 3820491 A US3820491 A US 3820491A
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Prior art keywords
low temperature
tank assembly
hull
temperature liquefied
liquefied gas
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US00238347A
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English (en)
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K Yamamoto
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Eneos Globe Corp
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Eneos Globe Corp
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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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B23/00—Equipment for handling lifeboats or the like
    • B63B23/02—Davits, i.e. devices having arms for lowering boats by cables or the like
    • B63B23/04—Davits, i.e. devices having arms for lowering boats by cables or the like with arms pivoting on substantially horizontal axes, e.g. gravity type
    • B63B23/12—Davits, i.e. devices having arms for lowering boats by cables or the like with arms pivoting on substantially horizontal axes, e.g. gravity type with simulated pivots
    • B63B23/16—Davits, i.e. devices having arms for lowering boats by cables or the like with arms pivoting on substantially horizontal axes, e.g. gravity type with simulated pivots using guide tracks
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C13/00—Details of vessels or of the filling or discharging of vessels
    • F17C13/004—Details of vessels or of the filling or discharging of vessels for large storage vessels not under pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C3/00—Vessels not under pressure
    • F17C3/02—Vessels not under pressure with provision for thermal insulation
    • F17C3/025—Bulk storage in barges or on ships
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2201/00—Vessel construction, in particular geometry, arrangement or size
    • F17C2201/05—Size
    • F17C2201/052—Size large (>1000 m3)
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2203/00—Vessel construction, in particular walls or details thereof
    • F17C2203/03—Thermal insulations
    • F17C2203/0304—Thermal insulations by solid means
    • F17C2203/0354—Wood
    • 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
    • F17C2203/0631—Three or more walls
    • 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
    • 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
    • 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
    • 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
    • F17C2203/0648—Alloys or compositions of metals
    • 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
    • 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
    • F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/04—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by other properties of handled fluid before transfer
    • F17C2223/042—Localisation of the removal point
    • F17C2223/046—Localisation of the removal point in the liquid
    • F17C2223/047—Localisation of the removal point in the liquid with a dip tube
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2227/00—Transfer of fluids, i.e. method or means for transferring the fluid; Heat exchange with the fluid
    • F17C2227/01—Propulsion of the fluid
    • F17C2227/0128—Propulsion of the fluid with pumps or compressors
    • F17C2227/0135—Pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • 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
    • F17C2227/0171—Arrangement
    • F17C2227/0178—Arrangement in the vessel
    • 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
    • F17C2227/0171—Arrangement
    • F17C2227/0185—Arrangement comprising several pumps or compressors
    • 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
    • F17C2250/0408—Level of content in the vessel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2260/00—Purposes of gas storage and gas handling
    • F17C2260/01—Improving mechanical properties or manufacturing
    • F17C2260/013—Reducing manufacturing time or effort
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • 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

Definitions

  • the outer box has side walls and a bottom adapted to be just strong enough to hold the whole shape thereof for the convenience of the construction and assembly, but not strong enough to support the inner pressure applied by the low temperature liquefied gases loaded in the membranous vessel.
  • the box also has a roof adapted to form by itself a roof portion of the hull, whereby the construction of the tank as well as the assembling thereof into the hull is made substantially easier and the period of construction of the tanker ships is substantially shortened.
  • This invention relates to the construction of low temperature liquefied gas tanker ships for transporting low temperature liquefied gases such as petroleum gases which are in a gaseous state at room temperature and can be liquefied under atmospheric pressure.
  • this invention relates to low temperature liquefied gas tanker ships equipped with low temperature liquefied gas tanks of a membrane type, wherein said tanks are composed of membranous vessels made of a low temperature resisting material and confined in hold spaces to be supported by the walls thereof via a heat insulatinglayer of compression resisting property, said walls of the hold spaces being provided by inner walls of the hull or bulkheads.
  • this conventional method has a drawback that, since the membranous vessel has no rigidness as a whole structure, it is a very difficult work to mount the membranous vessel in the hold space by suspending the membranous vessel at its top portions and lowering it into the hold space. Furthermore, according to the conventional method, the deck structure provided over and adapted to cover a roof portion of the vessel must be constructed after the vessel has been mounted in the hold space, whereby the advantage of shortening the period of construction of the tanker ship is minimized. Furthermore, the mounting of various equipments such as loading and unloading pipes for low temperature liquefied gases requires an additional period to be expended as usual after the construction of the deck has been completed. Therefore, the conventional method could not substantially shorten the overall period of construction of the tanker ships equipped with the membranous tanks for carrying low temperature liquefied gases.
  • Another object of this invention is to provide tanker .ships of' the abovementioned structure, whereby the adapted to provide hold spaces in which said membra-.
  • the membranous vessel is constructed as a tank assembly including an outer box of a steel structure and a heat insulating layer of compression resisting property provided between the outer box and the membranous vessel, said outer box being adapted to have a bottom and side walls substantially made of steel plate having thickness large enough to hold the whole shape of the tank assembly but not enough to support the inner pressure applied by the low temperature liquefied gases loaded in the membranous vessel and a roof having high strength and rigidity enough to support said inner pressure, wherein the roof of the tank assembly may preferably be adapted to form .the roof portion of the hull or generally deck when the tank assembly has been mounted in the hold space of the tanker ship.
  • the tank assembly has the outer box providing rigidness great enough to hold the whole shape of the assembly and the roof structure having strength and rigidness great enough to form the roof portion of the hull, the assembly can be very easily suspended by being carried at the roof structure, whereby the tank assembly can be very easily inserted into the hold space prepared in the hull to be mounted therein. Since the roof of the assembly is adapted to provide by itself the roof portion of the hull or generally deck, no additional work of constructing the roof portion of the hull or deck is required after the completion of the mounting of the membranous vessels, whereby the period of construction of the tanker ship is substantially shortened.
  • the tank assembly having the outer box made of steel plate providing rigidness high enough to hold the whole shape of the assembly and adapted to be suspended by being carried at the rigid roof structure thereof is constructed much easier than a single structure made only of the membranous vessel.
  • the outer box is firmly backed up by the walls of the hold space pro vided by the hull or the bulkhead, whereby when the I membranous vessel was loaded with low temperature liquefied gases, the inner pressure applied by the liquefied gases is positively supported by the hull structure through the outer box and the heat insulating layer of the compression resisting property provided between the outer box and the membranous vessel.
  • the. roof structure of the assembly is beforehand preferably equipped with loading and unloading means such as pipes, pumps, valves, etc., which are usually mounted to the roof structure by way of a dome provided on the deck of the hull.
  • loading and unloading means such as pipes, pumps, valves, etc.
  • FIG. 1 A perspective view showing'a cross section of a low temperature liquefied gas tank assembly (FIG. 1) and a low temperature liquefied gas tank mounted in a tanker ship (FIG. 2) constructed according to this invention.
  • the tanker ship comprises a dual-walled hull 1 having an inner side wall 2 and an inner bottom plate 3, and a longitudinal bulkhead 4 and a transverse bulkhead (not shown), wherein a hold space 5 is defined by the inner side wall 2, the inner bottom plate 3 and the bulkhead 4 as a cavity open at the upper portion thereof.
  • a tank assembly of the membranous vessel designated by reference numeral 6 as a whole and adapted to be mounted in the hold space 5 is composed of a membranous vessel 7 made of thin plate of a low temperature resisting material such as nickel steel, stainless steel or aluminum and a supporting structure 8 provided at the outside of the membranous vessel 7 in a manner for enclosing the vessel 7.
  • the membranous vessel 7 is actually formed of two membranous vessels 7a and 7b laid one over the other so as to provide a double layered membranous vessel, wherein the outer one is adapted to perform as a secondary barrier wall in case that a leakage has occurred at the inner membranous vessel.
  • the supporting structure 8 comprises an outer box 9 of a steel structure substantially made of steel plate and a heat insulating layer 12 35 of compression resisting property, such as a combination of wooden frames and heat insulating material of indeterminate form 11, the latter filling the spaces formed by the former.
  • the outer box 9 comprises a bottom plate 13 and side walls 14 made of steel plate having a relatively small thickness which is enough to support the whole shape of the tank assembly 6 but not enough to support the inner pressure applied by the low temperature liquefied gases loaded in the membranous vessel 7 and a roof portion 15 having high strength and rigidity enough to support the inner pressure of the vessel 7.
  • the tank assembly 6 is constructed separately from the hull 1.
  • the roof portion 15 is equipped with a dome 16 adapted to be closed by a cover 17 and loading and unloading means such as loading and unloading pipes 18 for liquefied gases, a gas pipe 19, valves 20 and 21, pumps 22 mounted at the lower ends of the pipes 18, a level indicator 23, etc., wherein these loading and unloading means are directly or indirectly mounted to and supported by the cover 17 of the dome 16.
  • the cover 17 is further equipped with a hatchway 24 adapted to be gas-tightly closed and a ladder 25 extending downward from the hatchway for the inspection and maintenance of the tank.
  • the pipes 18 and 19 are extended above the cover 17 therethrough and are connected to horizontal pipe portions 18a and 1911, respectively, which are running over the deck and supported by a stand 26.
  • the tank assembly 6, which has been constructed separately form the hull l and equipped with the loading and unloading means as described above, is suspended by a crane such as floating crane of a large capacity and is lowered into the hold space 5 to be mounted therein.
  • the process of suspending the tank assembly 6 and mounting it in the hold space 5 is made substantially easier by the fact that the outer box 6 has the rigid roof 15 and the side walls 14 which can hold the whole shape of the tank assembly.
  • edge portions of the roof 15 are firmly connected to the rim members 27 forming the upper open edge of the hold space 5, and the horizontal pipe portions 18a and 19a are connected to the corresponding pipe portions belonging to adjacently mounted tank assemblies.
  • the tank assembly may preferably be equipped with cantilevers 28 mounted to bottom end portions of the dome l6 and adapted to support the roof portion of the membranous vessel 7.
  • cantilevers 28 mounted to bottom end portions of the dome l6 and adapted to support the roof portion of the membranous vessel 7.
  • the inner pressure of the membranous vessel 7 is supported by the hull l and the rigid roof portion 15 of the tank assembly 6. Therefore, it is not necessary that the bottom and side wall portions of outer box 9 are formed to have substantial strength beyond the requirement of holding the whole shape of the tank assembly 6 in the process of assembly.
  • the roof portion of the tank assembly 6 is prepared to form by itself the roof portion of the hull or generally deck, it is not necessary to expend additional time for the construction of the roof portion of the bull or deck after the mounting of the tank assembly, whereby the period of construction of the tanker is substantially shortened.
  • this invention provides a very improved method of constructing the low temperature liquefied gas tankers equipped with the membranous vessels whereby the portions operating as the hull and the portions operting as the low temperature liquefied gas tanks are reasonably separated regarding the process of construction so as to reduce the amount of the construction which necessitates the occupation of docks and to substantially shorten the overall period of construction of the low temperature liquefied gas tanker ships equipped with the membranous vessels.
  • a method of constructing a tanker ship equipped with a low temperature liquefied gas tank of the membrane type comprising the steps of:
  • a low temperature liquefied gas tank assembly of the membrane type separately from the hull of said tanker ship with said tank assembly having bottom and side wall portions which are strong enough to hold their own shape but are not strong enough to support the internal pressure applied thereto when the tank assembly is loaded with low-temperature liquefied gas; completing said tank assembly by securing to the upper edges of the side wall portions a rigid roof structure which closes said tank assembly and is strong enough to withstand the internal pressure applied thereto by the low temperature liquefied gas which is adapted to be loaded in said tank assembly; and then suspending the preconstructed tank assembly by way of the rigid roof structure, said rigid roof structure structure defines a deck of said tanker ship.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Ocean & Marine Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
US00238347A 1971-04-27 1972-03-27 Low temperature liquefied gas tanker ship equipped with membranous vessels Expired - Lifetime US3820491A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP46027195A JPS5119234B1 (no) 1971-04-27 1971-04-27

Publications (1)

Publication Number Publication Date
US3820491A true US3820491A (en) 1974-06-28

Family

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US00238347A Expired - Lifetime US3820491A (en) 1971-04-27 1972-03-27 Low temperature liquefied gas tanker ship equipped with membranous vessels

Country Status (6)

Country Link
US (1) US3820491A (no)
JP (1) JPS5119234B1 (no)
DE (1) DE2217205A1 (no)
FR (1) FR2136744A5 (no)
GB (1) GB1349809A (no)
IT (1) IT953745B (no)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994025335A1 (en) * 1993-04-28 1994-11-10 Kværner Moss Technology A.S A device for spherical ship's tanks
CN101797728A (zh) * 2009-12-14 2010-08-11 大连船舶重工集团有限公司 Lng船液舱围护系统锚板定位模板装置
FR3082916A1 (fr) * 2018-06-25 2019-12-27 Gaztransport Et Technigaz Procede d'assemblage d'un dome liquide
CN111295327A (zh) * 2017-09-12 2020-06-16 丁泰瑛 热绝缘结构材料以及使用其的低温和超低温液化气载体
WO2020188195A3 (fr) * 2019-03-15 2020-11-19 Gaztransport Et Technigaz Paroi de cuve comprenant une isolation améliorée autour d'une traversée
RU2780111C2 (ru) * 2018-06-25 2022-09-19 Газтранспорт Эт Технигаз Способ сборки жидкостного купола
EP4129814A4 (en) * 2020-03-30 2024-04-17 Kawasaki Jukogyo Kabushiki Kaisha LIQUEFIED GAS STORAGE VESSEL

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5226323B2 (no) * 1972-07-17 1977-07-13
CN107521641B (zh) * 2017-08-16 2019-04-23 中船华南船舶机械有限公司 一种潜水器布放回收装置及布放回收方法

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994025335A1 (en) * 1993-04-28 1994-11-10 Kværner Moss Technology A.S A device for spherical ship's tanks
US5640918A (en) * 1993-04-28 1997-06-24 Kvaerner Moss Technology A.S Device for spherical ship's tanks
CN101797728A (zh) * 2009-12-14 2010-08-11 大连船舶重工集团有限公司 Lng船液舱围护系统锚板定位模板装置
CN101797728B (zh) * 2009-12-14 2012-12-12 大连船舶重工集团有限公司 Lng船液舱围护系统锚板定位模板装置
CN111295327A (zh) * 2017-09-12 2020-06-16 丁泰瑛 热绝缘结构材料以及使用其的低温和超低温液化气载体
FR3082916A1 (fr) * 2018-06-25 2019-12-27 Gaztransport Et Technigaz Procede d'assemblage d'un dome liquide
WO2020002812A1 (fr) * 2018-06-25 2020-01-02 Gaztransport Et Technigaz Procede d'assemblage d'un dome liquide
CN112368507A (zh) * 2018-06-25 2021-02-12 气体运输技术公司 用于组装液体顶舱的方法
RU2780111C2 (ru) * 2018-06-25 2022-09-19 Газтранспорт Эт Технигаз Способ сборки жидкостного купола
WO2020188195A3 (fr) * 2019-03-15 2020-11-19 Gaztransport Et Technigaz Paroi de cuve comprenant une isolation améliorée autour d'une traversée
EP4129814A4 (en) * 2020-03-30 2024-04-17 Kawasaki Jukogyo Kabushiki Kaisha LIQUEFIED GAS STORAGE VESSEL

Also Published As

Publication number Publication date
JPS5119234B1 (no) 1976-06-16
DE2217205A1 (de) 1972-11-09
FR2136744A5 (no) 1972-12-22
IT953745B (it) 1973-08-10
GB1349809A (en) 1974-04-10

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