WO2022144971A1 - Réservoir à enveloppes multiples et cuve - Google Patents

Réservoir à enveloppes multiples et cuve Download PDF

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Publication number
WO2022144971A1
WO2022144971A1 PCT/JP2020/049136 JP2020049136W WO2022144971A1 WO 2022144971 A1 WO2022144971 A1 WO 2022144971A1 JP 2020049136 W JP2020049136 W JP 2020049136W WO 2022144971 A1 WO2022144971 A1 WO 2022144971A1
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WO
WIPO (PCT)
Prior art keywords
tank
heat insulating
insulating material
shell
planar heat
Prior art date
Application number
PCT/JP2020/049136
Other languages
English (en)
Japanese (ja)
Inventor
太一郎 下田
晴彦 冨永
和宏 黒田
森 田中
英和 岩▲崎▼
大輔 神▲崎▼
瑞紀 樫藤
隆道 細野
大地 加野
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 JP2022572830A priority Critical patent/JPWO2022144971A1/ja
Priority to CN202080108209.3A priority patent/CN116670023A/zh
Priority to PCT/JP2020/049136 priority patent/WO2022144971A1/fr
Priority to EP20967984.4A priority patent/EP4269225A1/fr
Priority to KR1020237024741A priority patent/KR20230119006A/ko
Publication of WO2022144971A1 publication Critical patent/WO2022144971A1/fr

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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
    • 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
    • F17C3/027—Wallpanels for so-called membrane tanks
    • 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
    • F17C2201/03—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
    • F17C2203/00—Vessel construction, in particular walls or details thereof
    • F17C2203/03—Thermal insulations
    • F17C2203/0304—Thermal insulations by solid means
    • F17C2203/0329—Foam
    • F17C2203/0333—Polyurethane
    • 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
    • F17C2203/0337—Granular
    • F17C2203/0341—Perlite
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2203/00—Vessel construction, in particular walls or details thereof
    • F17C2203/03—Thermal insulations
    • F17C2203/0304—Thermal insulations by solid means
    • F17C2203/0358—Thermal insulations by solid means in form of panels
    • 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
    • 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
    • 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
    • F17C2205/0192—Details of mounting arrangements with external bearing 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
    • F17C2209/00—Vessel construction, in particular methods of manufacturing
    • F17C2209/22—Assembling processes
    • F17C2209/227—Assembling processes by adhesive 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
    • F17C2209/00—Vessel construction, in particular methods of manufacturing
    • F17C2209/22—Assembling processes
    • F17C2209/228—Assembling processes by screws, bolts or rivets
    • 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
    • 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
    • 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
    • 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
    • F17C2270/0107—Wall panels
    • 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
    • F17C2270/0134—Applications for fluid transport or storage placed above the ground

Definitions

  • the present invention relates to a multi-shell tank and a ship equipped with a multi-shell tank.
  • the multi-shell tank includes a plurality of tanks including an inner tank for storing low-temperature fluid cargo such as liquefied gas and an outer tank for covering the inner tank. It is known that a vacuum space is formed in the inter-tank region of the multi-shell tank in order to improve the heat insulating property.
  • Patent Document 1 discloses a double-shell tank mounted on a ship.
  • the double-shell tank disclosed in Patent Document 1 includes an inner tank that stores liquefied gas, an outer tank that surrounds the inner tank and a vacuum space is formed between the inner tank, and at least a part of the inner tank. It includes at least one metal sheet attached to the inner tank so as to face the bottom surface, an adsorbent for gas molecules placed on the metal sheet, and a heat insulating sheet covering the inner tank and the metal sheet.
  • the heat insulating sheet includes alternately stacked radiant shield films and a sheet-like spacer having a small thermal conductivity.
  • the present invention has been made in view of the above circumstances, and is a multi-shell tank for storing liquefied gas, which has high heat insulating performance without relying on a high vacuum between the inner tank and the outer tank.
  • the subject is to prepare for.
  • the multi-shell tank according to one aspect of the present invention is An inner tank that stores liquefied gas and A single or multiple outer tanks arranged with a gap on the outside of the inner tank so as to surround the inner tank.
  • the ship according to one aspect of the present invention is With the hull, It is characterized by including the multi-shell tank mounted on the hull.
  • the multi-shell tank and the ship having the above configuration heat conduction and heat convection are inhibited by two or more heat insulating layers made of a planar heat insulating material, so that the multi-shell tank is filled with gas even if the tanks are filled with gas.
  • the tank wall is equipped with sufficiently high insulation performance.
  • FIG. 1 is a side view showing an overall configuration of a ship equipped with a multi-shell tank according to an embodiment of the present invention.
  • FIG. 2 is a cross-sectional view illustrating the structure of a multi-shell tank mounted on a ship.
  • FIG. 3 is a cross-sectional view of the multi-shell tank according to the first example.
  • FIG. 4 is a diagram illustrating a method of fixing the planar heat insulating material.
  • FIG. 5 is a cross-sectional view of the multi-shell tank according to the first example in which the granular heat insulating material is filled between the tanks.
  • FIG. 6 is a cross-sectional view of the multi-shell tank according to the second example.
  • FIG. 7 is a cross-sectional view of the multi-shell tank according to the third example.
  • FIG. 8 is a cross-sectional view of the multi-shell tank according to the fourth example.
  • FIG. 9 is a cross-sectional view of the multi-shell tank according to the fifth example.
  • FIG. 10 is a cross-sectional view of the multi-shell tank according to the sixth example.
  • FIG. 1 shows a ship 1 equipped with a multi-shell tank 3 according to an embodiment of the present invention.
  • the ship 1 includes a hull 2 and two multi-shell tanks 3 mounted on the hull 2.
  • the multi-shell tank 3 is a cargo tank for transporting a low temperature fluid.
  • the multi-shell tanks 3 are arranged in the direction of the captain in the present embodiment, but may be arranged in the direction of the width of the ship if the width of the ship is wide. Further, the number of the multi-shell tanks 3 mounted on the hull 2 may be one or three or more.
  • the two multi-shell tanks 3 have substantially the same structure.
  • the multi-shell tank 3 is configured as a double-shell tank.
  • each multi-shell tank 3 includes an inner tank 4 for storing cargo and an outer tank 5 for wrapping the inner tank 4.
  • the inner tank 4 and the outer tank 5 are separated from each other substantially evenly, and a tank space 30 in the thickness direction of the tank wall is formed between the inner tank 4 and the outer tank 5.
  • the heat insulating structure of the tank wall of the multi-shell tank 3 will be described in detail later.
  • the cargo is liquefied petroleum gas (LPG, about -45 ° C), liquefied ethylene gas (LEG, about -100 ° C), liquefied natural gas (LNG, about -160 ° C), liquefied oxygen (LO 2 , about -180 ° C). , Liquefied hydrogen (LH 2 , about ⁇ 250 ° C.), and liquefied gas of liquefied helium (LHe, about -270 ° C.).
  • LPG liquefied petroleum gas
  • LPG liquefied ethylene gas
  • LNG liquefied natural gas
  • LO 2 liquefied oxygen
  • LHe Liquefied hydrogen
  • LHe liquefied gas of liquefied helium
  • the cargo does not necessarily have to be a liquid, but may be a gas.
  • the inner tank 4 includes a cylindrical inner tank main body 41 that is long in the horizontal direction and an inner tank dome 42 that projects upward from the inner tank main body 41.
  • the axial direction of the inner tank main body 41 is parallel to the captain's direction.
  • the axial direction of the inner tank dome 42 is parallel to the vertical direction in this embodiment, but may be slightly tilted with respect to the vertical direction.
  • the outer tank 5 includes a cylindrical outer tank main body 51 that is long in the horizontal direction, and an outer tank dome 52 that projects upward from the outer tank main body 51.
  • the outer tank main body 51 surrounds the inner tank main body 41.
  • the outer tank dome 52 surrounds the inner tank dome 42.
  • the axial direction of the outer tank main body 51 is parallel to the ship length direction like the inner tank main body 41, and the axial direction of the outer tank dome 52 is parallel to the vertical direction like the inner tank dome 42.
  • the inner tank main body 41 and the outer tank main body 51 do not necessarily have to have a long cylindrical shape in the horizontal direction, and may have a long cylindrical shape in the vertical direction.
  • the inner tank main body 41 and the outer tank main body 51 may have a spherical shape, or may have a cubic shape or a rectangular parallelepiped shape.
  • the hull 2 is formed with two cargo compartments 21 that open upward.
  • the cargo compartments 21 are lined up in the direction of the captain, and the cargo compartments 21 are separated from each other by a partition wall 22. Then, the lower part of the multi-shell tank 3 is inserted inside each cargo hold 21.
  • a pair of saddles 25 separated from each other in the captain's direction are provided inside each cargo hold 21, a pair of saddles 25 separated from each other in the captain's direction.
  • the saddle 25 supports the outer tank main body 51 of the outer tank 5 of the multi-shell tank 3.
  • a pair of support members 35 for supporting the inner tank main body 41 are provided between the inner tank 4 and the outer tank 5 of the multi-shell tank 3.
  • the support member 35 is provided at the same position as the saddle 25, but the support member 35 may be provided at a position different from the saddle 25.
  • a tank cover 6 is arranged above each multi-shell tank 3. Each tank cover 6 covers the corresponding multi-shell tank 3 from above, and forms a holding space 7 between the tank cover 6 and the hull 2 in which the inert gas is filled.
  • the outer tank main body 51 of the outer tank 5 described above is located below the tank cover 6, and the outer tank dome 52 penetrates the tank cover 6.
  • FIG. 3 is a cross-sectional view of the multi-shell tank 3 according to the first example.
  • the multiple shell tank 3 is a single or multiple outer tank arranged with a gap on the outside of the inner tank 4 so as to surround the inner tank 4 for storing the liquefied gas and the inner tank 4.
  • a planar surface that is provided so as to cover two or more of the outer surface of the inner tank 4, the inner surface of the outer tank 5, and the outer surface of the outer tank 5, and inhibits heat radiation, heat conduction, and heat convection.
  • a heat insulating material 9 is provided.
  • the planar heat insulating material 9 has a panel shape.
  • the planar heat insulating material 9 has a thickness of 0.01 times or more and 1 times or less the gap between the inner tank 4 and the outer tank 5 (first outer tank 5A) arranged immediately outside the inner tank 4.
  • the planar heat insulating material 9 may be a multi-layered panel in which the heat insulating material is sandwiched between plate-shaped base materials.
  • the planar heat insulating material 9 is not limited to the panel shape, but may be a sheet shape. Examples of such a planar heat insulating material 9 include urethane foam panels, airgel sheets, and sheet-shaped glass wool.
  • the surface heat insulating material 9 is fixed to the surface of the inner tank 4 or the outer tank 5 by a fixative.
  • a metal base plate 81 is joined to the inner tank 4 (or the outer tank 5) by welding or the like.
  • a stud bolt 82 is joined to the base plate 81 by a screw structure or welding.
  • the material of the stud bolt 82 is not particularly limited, but it is desirable that the stud bolt 82 has a low thermal conductivity such as glass fiber reinforced plastic (GFRP).
  • GFRP glass fiber reinforced plastic
  • the stud bolt 82 is inserted into a hole provided in the planar heat insulating material 9 and then screwed into a nut 83.
  • the planar heat insulating material 9 may be fixed to the surface of the inner tank 4 or the outer tank 5 by a self-adhesive function of an adhesive or urethane foam.
  • the space between the inner tank 4 and the outer tank 5 (first outer tank 5A) arranged immediately outside the inner tank 4 (first tank 30A) is filled with a low-temperature gas (for example, liquefied gas of cargo). Is filled with vaporized gas, etc.).
  • the gas filled in the first tank 30A may be a gas vaporized from the inner tank 4 by communicating the inner tank 4 and the first tank 30A.
  • the pressure of 30A between the first tanks is 1 kPa or more.
  • the pressure of 30A between the first tanks is sufficiently high as compared with the conventional vacuum insulation.
  • the pressure of 30A between the first tanks may be 1 kPa or more and may be a negative pressure with respect to the atmospheric pressure.
  • the degree of vacuum of 30A between the first tanks is sufficiently low as compared with the conventional vacuum insulation.
  • a gap 31 in the thickness direction of the tank wall of the multi-shell tank 3 is provided in the space 30A between the first tanks.
  • the planar heat insulating material 9 does not exist in the gap 31.
  • This gap 31 is used as a work space and has a sufficient size for work.
  • the gap 31 may be used for arranging the piping.
  • the size of the gap 31 in the thickness direction of the tank wall is, for example, 0.1 times or more and 0.99 times or less the gap between the tanks 30.
  • a worker can enter the gap 31 to inspect the planar heat insulating material 9 and maintain the planar heat insulating material 9.
  • a gap 31 for moving the planar heat insulating material 9 and handling the fixture is 31. Is particularly useful.
  • the planar heat insulating material 9 and the void 31 are made large, the outer tank 5 becomes large, which may affect the cost due to the increase in the installation space and the weight of the tank.
  • the thickness of the planar heat insulating material 9, the distance between the tanks 30 and the gap 31 can be flexibly selected according to the required heat insulating performance and the limitation of the installation space.
  • the void 31 of the first tank space 30A may be filled with a granular heat insulating material 95 such as pearlite.
  • a granular heat insulating material 95 such as pearlite.
  • the planar heat insulating material 9 is provided so as to cover either the inner surface of the first outer tank 5A arranged immediately outside the inner tank 4 of the outer tank 5 or the outer surface of the first outer tank 5A.
  • the first planar heat insulating material was provided so as to cover the outer surface of the inner tank 4, the inner surface of the outer tank 5, and the outer surface of the outer tank 5 that were not covered with the first planar heat insulating material. Includes a second planar insulation.
  • the heat insulating performance of the first planar heat insulating material and the second planar heat insulating material may be different from each other depending on the place where the planar heat insulating material 9 is arranged. Multiplexing by appropriately adjusting the type and thickness of the first planar heat insulating material and the second planar heat insulating material according to the first tank 30A and the second tank 30B having different temperature conditions and atmospheric conditions.
  • the shell tank 3 can have sufficiently high heat insulating performance even if the space between the tanks 30 is not a high vacuum.
  • the multi-shell tank 3A shown in FIG. 3 is a double-shell tank and has an inner tank 4 and a single outer tank 5.
  • a planar heat insulating material 9 is fixed to the outer surface of the inner tank 4 so as to cover the outer surface of the inner tank 4. Further, the planar heat insulating material 9 is fixed to the outer surface of the outer tank 5 so as to cover the outer surface of the outer tank 5.
  • the multi-shell tank 3B shown in FIG. 6 is a double-shell tank, and has an inner tank 4 and a single outer tank 5.
  • a planar heat insulating material 9 is fixed to the inner surface of the outer tank 5 so as to cover the inner surface of the outer tank 5. Further, the planar heat insulating material 9 is fixed to the outer surface of the outer tank 5 so as to cover the outer surface of the outer tank 5.
  • the multi-shell tank 3C shown in FIG. 7 is a double-shell tank and has an inner tank 4 and a single outer tank 5.
  • a planar heat insulating material 9 is fixed to the inner surface of the inner tank 4 so as to cover the outer surface of the inner tank 4.
  • a planar heat insulating material 9 is fixed to the inner surface of the outer tank 5 so as to cover the inner surface of the outer tank 5. Further, the planar heat insulating material 9 is fixed to the outer surface of the outer tank 5 so as to cover the outer surface of the outer tank 5.
  • the multi-shell tank 3D shown in FIG. 8 is a triple-shell tank, and has an inner tank 4 and a double outer tank 5.
  • the double outer tank 5 is composed of a first outer tank 5A arranged immediately outside the inner tank 4 and a second outer tank 5B arranged outside the first outer tank 5A.
  • an inert gas having a boiling point higher than that of the gas filled in the first tank 30A for example, nitrogen is used. Is filled.
  • the planar heat insulating material 9 is fixed to the outer surface of the inner tank 4 so as to cover the outer surface of the inner tank 4.
  • the planar heat insulating material 9 is fixed to the outer surface of the first outer tank 5A so as to cover the outer surface of the first outer tank 5A.
  • the planar heat insulating material 9 is fixed to the outer surface of the second outer tank 5B so as to cover the outer surface of the second outer tank 5B.
  • the planar heat insulating material 9 covers the inner surface of the first outer tank 5A to cover the inner surface of the first outer tank 5A. It may be fixed to.
  • the planar heat insulating material 9 covers the inner surface of the second outer tank 5B instead of the planar heat insulating material 9 covering the outer surface of the second outer tank 5B. It may be fixed to the inner surface of.
  • the multi-shell tank 3E shown in FIG. 9 is a triple-shell tank and has an inner tank 4 and a double outer tank 5 (first outer tank 5A and second outer tank 5B).
  • the planar heat insulating material 9 is fixed to the inner surface of the first outer tank 5A so as to cover the inner surface of the first outer tank 5A. Further, the planar heat insulating material 9 is fixed to the outer surface of the first outer tank 5A so as to cover the inner surface of the first outer tank 5A.
  • At least one surface of the outer surface of the inner tank 4, the inner surface of the second outer tank 5B, and the outer surface of the second outer tank 5B is surface-insulated. It may be covered with the material 9.
  • the multi-shell tank 3F shown in FIG. 10 is a triple-shell tank, and has an inner tank 4 and a double outer tank 5 (first outer tank 5A and second outer tank 5B).
  • the planar heat insulating material 9 is fixed to the inner surface of the first outer tank 5A so as to cover the inner surface of the first outer tank 5A.
  • the planar heat insulating material 9 is fixed to the inner surface of the second outer tank 5B so as to cover the inner surface of the second outer tank 5B.
  • the planar heat insulating material 9 covers the outer surface of the first outer tank 5A to cover the outer surface of the first outer tank 5A. It may be fixed to. Further, in the multi-shell tank 3F, the planar heat insulating material 9 covers the outer surface of the second outer tank 5B instead of the planar heat insulating material 9 covering the inner surface of the second outer tank 5B. It may be fixed to the outer surface of the.
  • the planar heat insulating material 9 is fixed to the outer surface of the inner tank 4 so as to cover the outer surface of the inner tank 4 instead of the planar heat insulating material 9 covering the inner surface of the second outer tank 5B. May be done.
  • the multi-shell tank 3 of the present embodiment is a single layer or a single shell tank 3 arranged with a gap on the outside of the inner tank 4 so as to surround the inner tank 4 for storing the liquefied gas and the inner tank 4. It is fixed to the plurality of outer tanks 5 so as to cover two or more of the outer surface of the inner tank 4, the inner surface of the outer tank 5, and the outer surface of the outer tank 5, and inhibits heat conduction and heat convection.
  • the surface heat insulating material 9 is provided, and the space between the tanks 30 is filled with gas.
  • the following can be exemplified as the arrangement of the planar heat insulating material 9 when the outer tank 5 is a single layer.
  • the planar heat insulating material 9 is provided so as to cover the outer surface of the inner tank 4 and the inner surface of the outer tank 5.
  • the planar heat insulating material 9 is provided so as to cover two surfaces, the outer surface of the inner tank 4 and the outer surface of the outer tank 5.
  • the planar heat insulating material 9 is provided so as to cover two surfaces, the inner surface of the outer tank 5 and the outer surface of the outer tank 5.
  • the planar heat insulating material 9 is provided so as to cover three surfaces of the outer surface of the inner tank 4, the inner surface of the outer tank 5, and the outer surface of the outer tank 5.
  • the ship 1 is characterized by including a hull 2 and a multi-shell tank 3 mounted on the hull 2.
  • the space between the tanks 30 is filled with gas by inhibiting heat conduction and heat convection by the two-layer heat insulating layer made of the planar heat insulating material 9.
  • the tank wall of the multi-shell tank 3 is provided with sufficiently high heat insulating performance.
  • the planar heat insulating material 9 is fixed to the surface of the inner tank 4 or the outer tank 5, even if the inner tank 4 and the outer tank 5 are thermally shrunk, the planar heat insulating material 9 is heat-insulated. It is difficult for the material 9 to be displaced or biased with respect to the surface to which it is attached, and the reliability of the heat insulating performance in each portion of the tank wall can be improved.
  • the pressure between the inner tank 4 and the outer tank 5 (first outer tank 5A) arranged immediately outside the inner tank 4 is 30 (30A between the first tanks). It may be 1 kPa or more.
  • the pressure of 30A between the first tanks may be a negative pressure with respect to the atmospheric pressure.
  • the tank wall of the multi-shell tank 3 can be provided with even higher heat insulating performance.
  • the planar heat insulating material 9 may be in the form of a panel.
  • the planar heat insulating material 9 may be fixed to the surface covered by the planar heat insulating material 9 by a fixative (stud bolt 82 and nut 83).
  • planar heat insulating material 9 Since the planar heat insulating material 9 is fixed by the fixture in this way, it is relatively easy to put on and take off, so that on-site construction can be simplified.
  • each of the tank spaces 30 may have a working gap 31 in the thickness direction.
  • the void 31 means a space in the space between the tanks 30 that is not occupied by the planar heat insulating material 9 and through which an object other than gas (for example, a worker or a pipe) can pass.
  • the gap 31 is provided between the tanks 30 in this way, the worker can perform the mounting work, the piping work, etc. of the planar heat insulating material 9 by using the gap 31 at the time of construction, and this gap 31 at the time of maintenance.
  • An inspection device can be introduced into the gap 31 to inspect the planar heat insulating material 9, or a worker can replace the planar heat insulating material 9 by using the gap 31.
  • the planar heat insulating material 9 is either the inner surface of the first outer tank 5A arranged immediately outside the inner tank 4 of the outer tank 5 or the outer surface of the first outer tank 5A. Covers the first surface heat insulating material provided so as to cover the surface, and the outer surface of the inner tank 4, the inner surface of the outer tank 5, and the outer surface of the outer tank 5 that are not covered with the first surface heat insulating material. It is desirable to include the second planar heat insulating material provided as described above.
  • the multi-shell tank 3 is mounted on the ship 1, but the structure of the multi-shell tank 3 may be applied to a tank for storing liquefied gas installed on the ground.

Abstract

L'invention concerne un réservoir à enveloppes multiples, qui comprend : un réservoir interne qui retient du gaz liquéfié ; un seul ou plusieurs réservoirs externes qui sont agencés avec un intervalle à l'extérieur du réservoir interne de façon à entourer le réservoir interne ; et un matériau isolant plat qui est fixé à au moins deux surfaces parmi la surface externe du réservoir interne, la surface interne des réservoirs externes et la surface externe des réservoirs externes de façon à recouvrir les surfaces, et empêche un rayonnement thermique, une conduction thermique et une convection thermique. La paroi de réservoir a des propriétés d'isolation thermique élevées qui sont obtenues sans avoir besoin d'un vide poussé entre le réservoir interne et le réservoir externe.
PCT/JP2020/049136 2020-12-28 2020-12-28 Réservoir à enveloppes multiples et cuve WO2022144971A1 (fr)

Priority Applications (5)

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JP2022572830A JPWO2022144971A1 (fr) 2020-12-28 2020-12-28
CN202080108209.3A CN116670023A (zh) 2020-12-28 2020-12-28 多层壳罐和船舶
PCT/JP2020/049136 WO2022144971A1 (fr) 2020-12-28 2020-12-28 Réservoir à enveloppes multiples et cuve
EP20967984.4A EP4269225A1 (fr) 2020-12-28 2020-12-28 Réservoir à enveloppes multiples et cuve
KR1020237024741A KR20230119006A (ko) 2020-12-28 2020-12-28 다중각 탱크 및 선박

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2020/049136 WO2022144971A1 (fr) 2020-12-28 2020-12-28 Réservoir à enveloppes multiples et cuve

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WO2022144971A1 true WO2022144971A1 (fr) 2022-07-07

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EP (1) EP4269225A1 (fr)
JP (1) JPWO2022144971A1 (fr)
KR (1) KR20230119006A (fr)
CN (1) CN116670023A (fr)
WO (1) WO2022144971A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10141595A (ja) * 1996-11-05 1998-05-29 Ishikawajima Harima Heavy Ind Co Ltd 低温液化ガス貯蔵タンク
JP2016016806A (ja) * 2014-07-10 2016-02-01 三菱重工業株式会社 運搬船
JP2017194166A (ja) * 2013-06-21 2017-10-26 川崎重工業株式会社 液化ガス保持タンクおよび液化ガス運搬船
WO2019078048A1 (fr) 2017-10-16 2019-04-25 川崎重工業株式会社 Citerne à double coque, et navire

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10141595A (ja) * 1996-11-05 1998-05-29 Ishikawajima Harima Heavy Ind Co Ltd 低温液化ガス貯蔵タンク
JP2017194166A (ja) * 2013-06-21 2017-10-26 川崎重工業株式会社 液化ガス保持タンクおよび液化ガス運搬船
JP2016016806A (ja) * 2014-07-10 2016-02-01 三菱重工業株式会社 運搬船
WO2019078048A1 (fr) 2017-10-16 2019-04-25 川崎重工業株式会社 Citerne à double coque, et navire

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EP4269225A1 (fr) 2023-11-01
CN116670023A (zh) 2023-08-29
KR20230119006A (ko) 2023-08-14

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