WO2019172083A1 - Réservoir pour gaz liquéfié - Google Patents

Réservoir pour gaz liquéfié Download PDF

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Publication number
WO2019172083A1
WO2019172083A1 PCT/JP2019/007877 JP2019007877W WO2019172083A1 WO 2019172083 A1 WO2019172083 A1 WO 2019172083A1 JP 2019007877 W JP2019007877 W JP 2019007877W WO 2019172083 A1 WO2019172083 A1 WO 2019172083A1
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WO
WIPO (PCT)
Prior art keywords
liquefied gas
tank
disks
protrusion
tank body
Prior art date
Application number
PCT/JP2019/007877
Other languages
English (en)
Japanese (ja)
Inventor
良介 浦口
巧 吉田
雄三 江口
村岸　治
一藤 後神
Original Assignee
川崎重工業株式会社
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 川崎重工業株式会社 filed Critical 川崎重工業株式会社
Priority to KR1020207026288A priority Critical patent/KR102433806B1/ko
Priority to EP19763769.7A priority patent/EP3763989A4/fr
Priority to CN201980017339.3A priority patent/CN111819389B/zh
Publication of WO2019172083A1 publication Critical patent/WO2019172083A1/fr

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C13/00—Details of vessels or of the filling or discharging of vessels
    • F17C13/001—Thermal insulation specially adapted for cryogenic vessels
    • 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
    • F17C3/08—Vessels not under pressure with provision for thermal insulation by vacuum spaces, e.g. Dewar flask
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D90/00—Component parts, details or accessories for large containers
    • B65D90/02—Wall construction
    • B65D90/06—Coverings, e.g. for insulating purposes
    • 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
    • F17C2201/01—Shape
    • F17C2201/0104—Shape cylindrical
    • 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
    • F17C2201/0128—Shape spherical or elliptical
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2201/00—Vessel construction, in particular geometry, arrangement or size
    • F17C2201/01—Shape
    • F17C2201/0147—Shape complex
    • F17C2201/0157—Polygonal
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2201/00—Vessel construction, in particular geometry, arrangement or size
    • F17C2201/03—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
    • F17C2201/03—Orientation
    • F17C2201/035—Orientation with substantially horizontal 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)
    • 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
    • F17C2203/0329—Foam
    • 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
    • F17C2203/0391—Thermal insulations by vacuum
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
    • F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
    • F17C2205/0311—Closure 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
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
    • F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
    • F17C2205/0379—Manholes or access openings for human beings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2221/00—Handled fluid, in particular type of fluid
    • F17C2221/01—Pure fluids
    • F17C2221/012—Hydrogen
    • 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
    • F17C2221/01—Pure fluids
    • F17C2221/016—Noble gases (Ar, Kr, Xe)
    • F17C2221/017—Helium
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2221/00—Handled fluid, in particular type of fluid
    • F17C2221/03—Mixtures
    • F17C2221/032—Hydrocarbons
    • F17C2221/033—Methane, e.g. natural gas, CNG, LNG, GNL, GNC, PLNG
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2221/00—Handled fluid, in particular type of fluid
    • F17C2221/03—Mixtures
    • F17C2221/032—Hydrocarbons
    • F17C2221/035—Propane butane, 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
    • F17C2223/01—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
    • F17C2223/01—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the phase
    • F17C2223/0146—Two-phase
    • F17C2223/0153—Liquefied gas, e.g. LPG, GPL
    • F17C2223/0161—Liquefied gas, e.g. LPG, GPL cryogenic, e.g. LNG, GNL, PLNG
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/03—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the pressure level
    • F17C2223/033—Small pressure, e.g. for liquefied gas
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2227/00—Transfer of fluids, i.e. method or means for transferring the fluid; Heat exchange with the fluid
    • F17C2227/01—Propulsion of the fluid
    • F17C2227/0128—Propulsion of the fluid with pumps or compressors
    • F17C2227/0135—Pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • 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
    • F17C2260/00—Purposes of gas storage and gas handling
    • F17C2260/03—Dealing with losses
    • F17C2260/031—Dealing with losses due to heat transfer
    • F17C2260/033—Dealing with losses due to heat transfer by enhancing insulation
    • 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 present invention relates to a liquefied gas tank.
  • Patent Document 1 discloses a liquefied gas tank 100 as shown in FIG.
  • the liquefied gas tank 100 includes a tank main body 110 that stores the liquefied gas, and a protruding portion 120 that protrudes upward from the tank main body 110.
  • the protrusion 120 is a cavity, and the inside of the protrusion 120 communicates with the inside of the tank body 110.
  • the tank main body 110 is covered with a first heat insulating layer 130, and a portion other than the tip of the protruding portion 120 is covered with a cylindrical second heat insulating layer 140.
  • a heat insulating member 150 is disposed in the region overlapping the second heat insulating layer 140 inside the protruding portion 120.
  • the heat insulating member 150 is a metal disk-shaped box filled with foam.
  • Patent Document 1 Although the liquefied gas tank 100 disclosed in Patent Document 1 has sufficient heat insulation performance in the protrusion 120, there is a demand for further improving the heat insulation performance of the protrusion 120.
  • an object of the present invention is to provide a liquefied gas tank capable of improving the heat insulating performance of the protruding portion as compared with the conventional art.
  • the inventors of the present invention pay attention to the fact that the vaporized gas vaporized by the liquefied gas is convected in the protrusion, and improve the heat insulating performance of the protrusion by suppressing this convection. I found out that I can.
  • the present invention has been made from such a viewpoint.
  • the liquefied gas tank of the present invention includes a tank main body that stores liquefied gas, a hollow projecting portion that projects upward from the tank main body and communicates with the inside of the tank main body, and a first covering the tank main body.
  • a disk that partitions the inside of the portion into a plurality of cells arranged in the protruding direction of the protruding portion.
  • a manhole is provided at the tip of the protrusion, and each of the plurality of disks may be provided with a manhole and a manhole cover for opening and closing the manhole. According to this configuration, an operator can check the inside of the tank body through the inside of the protruding portion.
  • the manhole cover may be slidably attached to the disk other than the uppermost disk among the plurality of disks. According to this configuration, the disks can be arranged with a small pitch.
  • the protrusion may include a peripheral wall rising from the tank body and a ceiling wall that closes an upper opening of the peripheral wall, and the plurality of disks may be attached to an inner peripheral surface of the peripheral wall.
  • Each of the plurality of disks may be a metal plate.
  • Each disk may be a metal disk-shaped box filled with foam, but if each disk is a metal plate, the cost can be reduced.
  • the first heat insulating layer includes an outer tub that surrounds the tank main body while being separated from the tank main body, and a first vacuum space between the outer tub and the tank main body, and the second heat insulating layer is the outer tub.
  • the tank main body and the first heat insulating layer constitute a vacuum double shell structure
  • the protrusion and the second heat insulating layer constitute a vacuum double shell structure. The heat intrusion can be further suppressed.
  • the heat insulation performance of the protruding portion of the liquefied gas tank can be improved as compared with the conventional case.
  • FIG. 2 is a transverse sectional view taken along line II-II in FIG. It is a longitudinal cross-sectional view of a part of a conventional liquefied gas tank.
  • the liquefied gas tank 1 includes a tank body 2 that stores liquefied gas, and a protruding portion 3 that protrudes upward from the tank body 2.
  • the liquefied gas tank 1 may be mounted on a ship such as a liquefied gas carrier ship or may be installed on the ground.
  • liquefied gas examples include liquefied petroleum gas (LPG, about ⁇ 45 ° C.), liquefied ethylene gas (LEG, about ⁇ 100 ° C.), liquefied natural gas (LNG, about ⁇ 160 ° C.), liquefied hydrogen (LH 2 , about ⁇ 250 ° C.) and liquefied helium (LHe, about ⁇ 270 ° C.).
  • LPG liquefied petroleum gas
  • LEG liquefied ethylene gas
  • LNG liquefied natural gas
  • LH 2 liquefied hydrogen
  • LHe liquefied helium
  • the shape of the tank body 2 is not particularly limited, and may be a spherical shape or a cylindrical shape extending in the horizontal direction or the vertical direction. Alternatively, the shape of the tank body 2 may be a cubic shape or a rectangular parallelepiped shape.
  • the protruding direction of the protruding portion 3 is parallel to the vertical direction in this embodiment, but may be slightly inclined with respect to the vertical direction.
  • the protruding portion 3 is a dome that is penetrated by a plurality (two in the illustrated example) of the pipes 7.
  • One of the pipes 7 is for guiding the liquefied gas pumped up by the pump disposed in the tank body 2 to the outside.
  • the protrusion 3 is a hollow, and the inside of the protrusion 3 communicates with the inside of the tank body 2. More specifically, the protrusion 3 includes a peripheral wall 31 that rises from the tank body 2 and a ceiling wall 32 that closes the upper opening of the peripheral wall 31.
  • the pipe 7 described above extends in the vertical direction and penetrates the ceiling wall 32.
  • the upper end portion of the peripheral wall 31 and the ceiling wall 32 constitute the tip portion of the protruding portion 3.
  • a manhole 33 is provided in the ceiling wall 32 (tip portion) of the protruding portion 3.
  • the manhole 33 is formed by a manhole tube 34 joined to the ceiling wall 32, and is opened and closed by a manhole cover 35.
  • the manhole cover 35 is fixed to a flange provided at the upper end of the manhole tube 34 by a bolt or the like when the manhole 33 is closed, and is removed from the manhole tube 34 when the manhole 33 is opened.
  • the opening of the projecting portion 3 for opening and closing a device such as a pump into and out of the tank body 2 that is opened and closed by a door or a lid is the manhole 33. It may be provided separately.
  • each of the first heat insulation layer 4 and the second heat insulation layer 5 includes a vacuum space.
  • each of the 1st heat insulation layer 4 and the 2nd heat insulation layer 5 may be comprised with the some heat insulating material (for example, vacuum heat insulation panel) arranged in the surface of the tank main body 2 or the protrusion part 3.
  • FIG. Alternatively, each of the first heat insulation layer 4 and the second heat insulation layer 5 may be a simple foam. In this case, each of the 1st heat insulation layer 4 and the 2nd heat insulation layer 5 may be comprised with several foam panel.
  • the first heat insulating layer 4 includes an outer tank 41 surrounding the tank body 2 while being separated from the tank body 2, and a first vacuum space 42 between the outer tank 41 and the tank body 2.
  • the second heat insulating layer 5 rises from the outer tub 41 and is orthogonal to the protruding direction of the protruding portion 3, which connects the outer tube 51 surrounding the portion other than the tip of the protruding portion 3 and the upper end of the outer tube 51 and the protruding portion 3.
  • a ring plate 52 flat in a direction (horizontal direction in the present embodiment) and a second vacuum space 53 between the outer tube 51 and the protruding portion 3 are included.
  • the second vacuum space 53 communicates with the first vacuum space 42.
  • Each of the disks 6A to 6C is flat in a direction orthogonal to the protruding direction of the protruding portion 3, and is attached to the inner peripheral surface of the peripheral wall 31 of the protruding portion 3.
  • the inside of the protruding portion 3 is partitioned into a plurality of cells 30 arranged in the protruding direction of the protruding portion 3.
  • each disk may be directly attached to the inner peripheral surface of the peripheral wall 31 or indirectly attached to the inner peripheral surface of the peripheral wall 31 via a member (not shown) having an L-shaped cross section. May be.
  • each of the disks 6A to 6C is a metal plate.
  • Each of the disks 6A to 6C may be a metal disk-shaped box filled with foam, but if each of the disks 6A to 6C is a metal plate, the cost can be reduced.
  • a manhole 61 is provided at a position corresponding to the manhole 33 described above.
  • a manhole cover 62 for opening and closing the manhole 61 is attached to each of the disks 6A to 6C.
  • a manhole cover 62 is attached to the uppermost disk 6A so as to be able to swing (swing) via a hinge (not shown), and the manhole cover 62 is attached to the other disks 6B and 6C. It is slidably attached via a slide mechanism (not shown).
  • the tank main body 2 is externally transmitted through all the disks 6A to 6C. It is possible to suppress heat penetration into the inside. Thereby, the heat insulation performance of the protrusion part 3 can be improved. This effect can be obtained regardless of the configuration of the disks 6A to 6C (whether it is a metal plate or a metal disk-like box filled with foam).
  • the manhole cover 62 attached to the uppermost disk 6A can be easily operated by swinging. Further, since the manhole cover 62 attached to the other disks 6B and 6C is slidable, the disks 6A to 6C can be arranged at a small pitch. However, the pitch of the disks 6A to 6C may be increased, and the manhole cover 62 attached to the disks 6B and 6C may be of a swing type. Alternatively, the manhole cover 62 attached to all the disks 6A to 6C may be slidable.
  • the tank body 2 and the first heat insulating layer 4 constitute a vacuum double shell structure
  • the protrusion 3 and the second heat insulating layer 5 constitute a vacuum double shell structure. Heat intrusion into the main body 2 can be further suppressed.
  • the protruding portion 3 does not necessarily have to be a dome that is penetrated by the pipe 7, and may be a manhole portion that is smaller than the dome.
  • the protruding portion 3 may be configured only by the manhole tube 34 and the manhole cover 35.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)

Abstract

La présente invention concerne un réservoir de gaz liquéfié pourvu d'un corps principal de réservoir permettant de stocker du gaz liquéfié, une partie saillante creuse faisant saillie vers le haut à partir du corps principal de réservoir et dont l'intérieur communique avec l'intérieur du corps principal de réservoir, une première couche d'isolation thermique recouvrant le corps principal de réservoir, une seconde couche d'isolation thermique tubulaire recouvrant la partie saillante à l'exclusion d'une partie d'extrémité distale de celle-ci, et une pluralité de disques qui sont disposés dans une région chevauchant la seconde couche d'isolation thermique à l'intérieur de la partie saillante, et qui divise l'intérieur de la partie saillante en une pluralité de cellules alignées côte à côte dans une direction dans laquelle la partie saillante fait saillie.
PCT/JP2019/007877 2018-03-07 2019-02-28 Réservoir pour gaz liquéfié WO2019172083A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
KR1020207026288A KR102433806B1 (ko) 2018-03-07 2019-02-28 액화 가스 탱크
EP19763769.7A EP3763989A4 (fr) 2018-03-07 2019-02-28 Réservoir pour gaz liquéfié
CN201980017339.3A CN111819389B (zh) 2018-03-07 2019-02-28 液化气罐

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2018-040469 2018-03-07
JP2018040469A JP7071168B2 (ja) 2018-03-07 2018-03-07 液化ガスタンク

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WO2019172083A1 true WO2019172083A1 (fr) 2019-09-12

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EP (1) EP3763989A4 (fr)
JP (1) JP7071168B2 (fr)
KR (1) KR102433806B1 (fr)
CN (1) CN111819389B (fr)
WO (1) WO2019172083A1 (fr)

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FR3109978A1 (fr) * 2020-05-11 2021-11-12 Gaztransport Et Technigaz Dôme liquide d’une cuve de stockage pour gaz liquéfié comportant une ouverture munie d’une trappe additionnelle

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JP2021160400A (ja) 2020-03-30 2021-10-11 川崎重工業株式会社 液化ガス貯留船
JP2022157249A (ja) * 2021-03-31 2022-10-14 川崎重工業株式会社 二重殻タンク及び船舶
JP2022157248A (ja) * 2021-03-31 2022-10-14 川崎重工業株式会社 多重殻タンク及び船舶
CN114962982B (zh) * 2022-06-24 2024-01-23 中太能源科技(上海)有限公司 一种用于船舶运输设备的液化气体储存舱

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WO2021228751A1 (fr) * 2020-05-11 2021-11-18 Gaztransport Et Technigaz Dôme liquide d'une cuve de stockage pour gaz liquéfié comportant une ouverture munie d'une trappe additionnelle

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Publication number Publication date
KR102433806B1 (ko) 2022-08-18
KR20200118201A (ko) 2020-10-14
JP2019157868A (ja) 2019-09-19
CN111819389B (zh) 2022-03-15
CN111819389A (zh) 2020-10-23
EP3763989A1 (fr) 2021-01-13
EP3763989A4 (fr) 2021-11-17
JP7071168B2 (ja) 2022-05-18

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