WO2021172164A1 - Réservoir de carburant et navire - Google Patents

Réservoir de carburant et navire Download PDF

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Publication number
WO2021172164A1
WO2021172164A1 PCT/JP2021/006137 JP2021006137W WO2021172164A1 WO 2021172164 A1 WO2021172164 A1 WO 2021172164A1 JP 2021006137 W JP2021006137 W JP 2021006137W WO 2021172164 A1 WO2021172164 A1 WO 2021172164A1
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WO
WIPO (PCT)
Prior art keywords
storage
barrier
fuel
fuel tank
piping
Prior art date
Application number
PCT/JP2021/006137
Other languages
English (en)
Japanese (ja)
Inventor
智 宮崎
伸 上田
友朗 尾▲崎▼
恒一 奥田
Original Assignee
三菱造船株式会社
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 三菱造船株式会社 filed Critical 三菱造船株式会社
Priority to KR1020227022520A priority Critical patent/KR20220106201A/ko
Priority to CN202180009939.2A priority patent/CN114981160B/zh
Publication of WO2021172164A1 publication Critical patent/WO2021172164A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B17/00—Vessels parts, details, or accessories, not otherwise provided for
    • B63B17/0027—Tanks for fuel or the like ; Accessories therefor, e.g. tank filler caps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B11/00—Interior subdivision of hulls
    • B63B11/04—Constructional features of bunkers, e.g. structural fuel tanks, or ballast tanks, e.g. with elastic walls
    • 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
    • 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
    • B63H—MARINE PROPULSION OR STEERING
    • B63H21/00—Use of propulsion power plant or units on vessels
    • B63H21/38—Apparatus or methods specially adapted for use on marine vessels, for handling power plant or unit liquids, e.g. lubricants, coolants, fuels or the like
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M21/00—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form
    • F02M21/02—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
    • F02M21/0218—Details on the gaseous fuel supply system, e.g. tanks, valves, pipes, pumps, rails, injectors or mixers
    • F02M21/0221—Fuel storage reservoirs, e.g. cryogenic tanks
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
    • 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
    • F17C13/08—Mounting arrangements for 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
    • F17C13/00—Details of vessels or of the filling or discharging of vessels
    • F17C13/08—Mounting arrangements for vessels
    • F17C13/082—Mounting arrangements for vessels for large sea-borne storage 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
    • F17C13/00—Details of vessels or of the filling or discharging of vessels
    • F17C13/12—Arrangements or mounting of devices for preventing or minimising the effect of explosion ; Other safety measures
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/01—Mounting arrangements
    • F17C2205/0153—Details of mounting arrangements
    • F17C2205/018—Supporting feet
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • 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
    • F17C2265/00—Effects achieved by gas storage or gas handling
    • F17C2265/06—Fluid distribution
    • F17C2265/066—Fluid distribution for feeding engines for propulsion
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T70/00—Maritime or waterways transport
    • Y02T70/50—Measures to reduce greenhouse gas emissions related to the propulsion system
    • Y02T70/5218—Less carbon-intensive fuels, e.g. natural gas, biofuels

Definitions

  • This disclosure relates to a fuel tank and a ship on which the fuel tank is mounted.
  • the fuel tank mounted on a ship may be provided with a storage unit for storing liquefied gas such as liquefied natural gas (LNG) and liquefied propane gas (LPG).
  • a pipe for injecting liquefied gas into the storage unit and discharging the liquefied gas from the storage unit is connected to the storage unit.
  • Patent Document 1 discloses a ship including a storage unit for storing liquefied gas and a pipe for circulating the liquefied gas stored in the storage unit toward the main engine.
  • the storage section When mounting a fuel tank on a ship, the storage section is often placed on the saddle in consideration of heat shrinkage due to low-temperature liquefied gas. Further, in the extending direction of the pipe, it is necessary to provide a barrier that airtightly covers up to the valve (first valve) provided at the position closest to the storage portion on the pipe. A space called a tank connection space (TCS) is formed in this barrier. Even if liquefied gas leaks from the connection between the fuel tank and the first valve, it is stored in the TCS.
  • TCS tank connection space
  • the piping may extend downward from the bottom of the storage section. This makes it possible to utilize the gravity of the liquefied gas when discharging the liquefied gas, and it is known that the number of installed pumps can be reduced.
  • the barrier in order to airtightly cover up to the first valve with the barrier as described above, the barrier also extends from the bottom of the storage portion, that is, it has a suspended structure.
  • the barrier needs to be airtight.
  • the barrier is also required to have a structure that prevents significant deformation even when the low-temperature and high-pressure liquefied gas leaked from the storage portion is stored.
  • the present disclosure has been made in view of the above-mentioned problems, and by configuring the storage unit at a lower cost and lighter weight in a fuel tank mounted on a ship and having a pipe extending from the bottom of the storage unit. ,
  • the purpose is to provide a fuel tank that can ensure more soundness.
  • the fuel tank according to the present disclosure is a fuel tank mounted on a ship, and the fuel is stored in a storage portion and extends downward from the bottom of the storage portion.
  • the barrier portion is installed below the storage portion in the barrier portion installation portion which is a part of the ship.
  • the barrier portion can be supported from below by the barrier portion installation portion. can.
  • the wall portion can be constructed at a lower cost and lighter weight than when the barrier portion is not installed in the barrier portion installation portion and is hung in the storage portion, so that the fuel tank is sounder. Sex can be ensured.
  • FIG. 1 is a cross-sectional view taken along the line AA of FIG. It is the schematic which showed the structure of the fuel tank which concerns on some embodiments of this disclosure. It is the schematic which showed the structure of the fuel tank which concerns on 1st modification of 1st Embodiment of this disclosure. It is the schematic which showed the structure of the fuel tank which concerns on the 2nd modification of 1st Embodiment of this disclosure. It is a figure which showed the structure of the barrier part which concerns on the 3rd modification of 1st Embodiment of this disclosure, and is the figure which enlarged a part of the structure of the fuel tank for the explanation of the wall part.
  • the configuration of the fuel tank 1 according to the first embodiment of the present disclosure will be described with reference to FIGS. 1 and 2.
  • the fuel tank 1 is mounted on the ship 100.
  • the fuel tank 1 includes a storage unit 2, a piping unit 4, a first valve 6, and a barrier portion 8.
  • the direction from the stern of the ship 100 to the bow is the front, and the direction from the bow to the stern of the ship 100 is the rear.
  • a storage space 3 is formed inside the storage unit 2, and the fuel F is stored in the storage space 3 (see FIG. 2).
  • a storage unit 2 has a cylindrical shape extending in the front-rear direction, and has a single-shell structure.
  • the storage unit 2 is placed on two saddles 10A and 10B arranged side by side in the front-rear direction.
  • a heat insulating material 14 is arranged between the storage unit 2 and the two saddles 10A and 10B.
  • the saddles 10A and 10B are installed on the upper deck 12 (wall portion installation portion) of the hull 7 of the ship 100.
  • the upper deck 12 is the uppermost deck that constitutes the main part of the hull.
  • the fuel F stored in the storage unit 2 can be used for navigation of the ship 100, and liquefied gas of LNG or LPG is exemplified.
  • the storage unit 2 is fixed to the rear saddle 10A (fixed saddle) located on the rear side.
  • the fixing means for example, a structure in which a convex portion is provided in the lower portion of the storage portion 2 and sandwiched from the front and rear of the rear saddle 10A, a structure in which both are fixed by bolts, and the like are adopted. Further, the storage unit 2 is in contact with the front saddle 10B (contact saddle) located on the front side.
  • the saddle for fixing the storage unit 2 is not limited to the rear saddle 10A, and may be the front saddle 10B.
  • the fixed saddle extends from below the storage section 2 of the piping section 4 to the contact saddle in consideration of the influence of stress generated on the piping section 4 due to the displacement of the storage section 2 in the front-rear direction due to heat shrinkage. It is desirable that the saddle is close to the location.
  • the piping portion 4 extends downward from the bottom portion 5 (lower wall surface) of the storage portion 2.
  • the piping section 4 can connect the storage section 2 (bottom 5 of the storage section 2) and the fuel adjusting section 20.
  • the fuel adjusting unit 20 performs processing such as compression, vaporization, and pressure adjustment on the fuel F supplied from the storage unit 2 (fuel tank 1), and then supplies the fuel F to an engine (not shown).
  • the first valve 6 is the one closest to the storage section 2 in the extending direction D in which the piping section 4 extends from the bottom portion 5 of the storage section 2 among one or more valves provided in the piping section 4.
  • the first valve 6 can adjust the flow amount of the fuel F flowing through the piping portion 4.
  • the barrier portion 8 is formed in a box shape by the barrier, and a storage space 9 (tank connection space) is formed inside the barrier portion 8.
  • the barrier portion 8 airtightly covers from the bottom portion 5 of the storage portion 2 to at least the first valve 6.
  • the barrier portion 8 is installed below the storage portion 2 on the upper deck 12 (wall portion installation portion) which is a part of the ship 100. That is, in the first embodiment, the barrier portion 8 airtightly covers the first valve 6 and the portion of the piping portion 4 located above the upper deck 12. In the first embodiment, a part of the upper deck 12 can be made to function as a barrier of the barrier portion 8.
  • the upper surface (installation surface) of the upper deck 12 facing the bottom portion 5 of the storage portion 2 at the location where the barrier portion 8 is installed can function as one surface of the box-shaped body.
  • the barrier portion 8 is made of an appropriate material according to the temperature of the fuel F stored in the storage portion 2.
  • the fuel F is LNG, it is composed of stainless steel, 9% nickel steel, etc., which are particularly excellent in low temperature toughness.
  • the fuel F is LPG, it is composed of a low-temperature steel material or the like, which is relatively low in cost.
  • the barrier portion 8 may be installed on the barrier portion installation body 13 (wall portion installation portion) in which at least a part thereof is arranged on the upper deck 12.
  • the barrier portion installation body 13 is, for example, a stand installed on the upper deck 12. At this time, a part of the barrier portion installation body 13 can also function as a barrier of the barrier portion 8.
  • the wall portion 8 since the wall portion 8 is installed on the upper deck 12 of the ship 100 or the wall portion installation body 13 below the storage unit 2, the wall portion 8 can be supported from below. .. Further, a part of the upper deck 12 and the barrier portion installation body 13 can be used as the barrier portion 8. Therefore, it is possible to provide the fuel tank 1 which can ensure the soundness of the storage unit 2 at a lower cost and lighter weight than when the barrier portion 8 is suspended from the storage unit 2.
  • the piping unit 4 is a piping for discharging the fuel F from the storage unit 2, but the present disclosure is not limited to this embodiment.
  • the piping unit 4 may be a pipe for injecting the fuel F into the storage unit 2, or may be a pipe configured to enable both injection and discharge of the fuel F into the storage unit 2.
  • the two saddles 10A and 10B are installed on the upper deck 12 of the hull 7 of the ship 100, but the present disclosure is not limited to this embodiment. The same applies when at least one of the two saddles 10A and 10B is provided on the structure provided on the upper deck 12. Further, although saddles 10A and 10B have shown two cases in the first embodiment, the present disclosure is not limited to this embodiment.
  • the barrier portion 8 is located between the rear saddle 10A and the front saddle 10B in the front-rear direction, but the present disclosure is not limited to this embodiment.
  • the barrier portion 8 may be positioned other than between the two saddles 10A and 10B.
  • the barrier portion 8 is configured to cover a single piping portion 4, but the present disclosure is not limited to this embodiment.
  • the barrier portion 8 may be configured to cover a plurality of piping portions 4.
  • the fuel tank 1 according to the first modification of the first embodiment of the present disclosure will be described with reference to FIG.
  • the barrier portion 8 is installed on the upper deck 12, but the present disclosure is not limited to the first embodiment.
  • the same components as those of the first embodiment are designated by the same reference numerals, and detailed description thereof will be omitted.
  • the wall portion 8 is installed on the lower deck 22 (wall portion installation portion) of the hull 7 of the ship 100.
  • the lower deck 22 is a deck located below the upper deck 12.
  • both the upper deck 12 and the lower deck 22 are collectively referred to as decks. That is, a part of the barrier portion 8 is inserted inside the hull 7.
  • the capacity of the storage unit 2 is preferably as large as possible in order to secure the navigation distance of the ship 100, for example.
  • the diameters of the first valve 6 and the piping portion 4 are also increased.
  • the volume required for the storage space 9 also increases, and it is necessary to provide a large barrier portion 8.
  • the volume required for the storage space 9 also changes depending on the pressure resistance and temperature resistance of the storage unit 2. In particular, when the storage unit 2 has a high pressure resistance, when the fuel F leaks. Since the amount of leakage may increase, it is necessary to further increase the volume of the storage space 9.
  • the heights (vertical dimensions) of the two saddles 10A and 10B are increased in order to increase the size of the storage portion 2 and the barrier portion 8, that is, when the storage portion 2 is raised, for example, the hull 7 is shaken. At that time, the acceleration of the storage unit 2 in the ship width direction becomes large. Therefore, conventionally, in addition to the two saddles 10A and 10B, another support member for supporting the storage unit 2 may be provided, or the two saddles 10A and 10B may be reinforced. However, according to the configuration of the first modification, even if the storage portion 2 and the barrier portion 8 are enlarged, a part of the barrier portion 8 is inserted into the hull 7, so that the storage portion 2 is not raised.
  • the barrier portion 8 is installed on the lower deck 22, but the present disclosure is not limited to this embodiment. The same applies when it is installed on a wall-breaking portion installation body (wall-prevention portion installation portion) (not shown) provided on the lower deck 22.
  • An installation stand or the like is exemplified as a wall installation body. Further, a part of the barrier of the barrier portion 8 is similarly established even when the lower deck 22 or the barrier portion installation body is used.
  • the fuel tank 1 according to the second modification of the first embodiment of the present disclosure will be described with reference to FIG.
  • the second modified example further limits the configuration of the barrier portion 8 described in the first modified example, but the other configurations are the same as the configurations described in the first modified example.
  • those having the same constituent requirements as the first modification are designated by the same reference numerals, and detailed description thereof will be omitted.
  • the second modification may further limit the configuration of the barrier portion 8 described in the first embodiment.
  • the barrier portion 8 is configured such that the area of the cross section (hereinafter referred to as the cross section S) orthogonal to the vertical direction is the smallest in the connecting portion 24 in which the barrier portion 8 and the storage portion 2 are connected. Will be done.
  • the barrier portion 8 is composed of a small diameter portion 8a and a large diameter portion 8b.
  • the small diameter portion 8a is a portion that is connected to the bottom portion 5 of the storage portion 2 and extends downward from the bottom portion 5 of the storage portion 2 while maintaining the shape of the cross section S of the small diameter portion 8a.
  • the large-diameter portion 8b is a portion that expands the area of the cross section S of the small-diameter portion 8a and extends downward from the tip of the small-diameter portion 8a.
  • the stress generated at the connection portion between the storage portion 2 and the barrier portion 8 can be reduced.
  • the present disclosure is not limited to the second modification as long as the area of the cross section S is the smallest at the connecting portion 24.
  • the small diameter portion 8a may be configured such that the area of the cross section S increases toward the bottom, such as in a tapered shape.
  • the fuel tank 1 according to the third modification of the first embodiment of the present disclosure will be described with reference to FIG.
  • the third modified example further limits the configuration of the barrier portion 8 described in the second modified example, but the other configurations are the same as the configurations described in the second modified example.
  • the third modification may further limit the configuration of the barrier portion 8 described in the first embodiment and the first modification.
  • the barrier portion 8 is divided into an upper barrier portion 26 and a lower barrier portion 28 located below the upper barrier portion 26.
  • the small diameter portion 8a is divided into an upper portion 8c and a lower diameter portion 8d
  • the upper portion 8c of the small diameter portion 8a is the upper barrier portion 26
  • the lower diameter portion 8a and the large diameter portion 8b are the lower barrier portion. It is configured as a part 28. That is, the upper wall portion 26 (the upper portion 8c of the small diameter portion 8a) has a smaller cross-sectional area orthogonal to the vertical direction than a part of the lower barrier portion 28 (large diameter portion 8b).
  • the piping portion 4 is formed with a first valve flange portion 27 for attaching the first valve 6 described above, which is located inside the barrier portion 8.
  • the first valve flange portion 27 of the piping portion 4 can be positioned below the second flange portion 32.
  • the flange portion 27 for the first valve of the piping portion 4 is located in the large diameter portion 8b of the barrier portion 8.
  • the portion of the piping portion 4 on the upstream side in the extending direction D from the flange portion 27 for the first valve will be referred to as the upstream piping portion 4a.
  • the small diameter portion 8a maintains the shape of the cross section S, but the upper portion 8c and the lower portion 8d of the small diameter portion 8a may have different cross-sectional shapes.
  • the upper barrier portion 26 may be smaller than the area of the smallest cross section of the cross sections orthogonal to the vertical direction of the lower barrier portion 28.
  • the outer diameter of the first valve flange portion 27 may be equal to or larger than the inner diameter of the lower portion 8d of the small diameter portion 8a of the barrier portion 8.
  • the first flange portion 30 is formed at the lower end portion of the upper barrier portion 26, and the second flange portion 32 is formed at the upper end portion of the lower barrier portion 28. Then, the second flange portion 32 is fixed to the first flange portion 30 by fastening the first flange portion 30 and the second flange portion 32 with a fastening member such as a bolt 33.
  • the position where the first flange portion 30 is formed is not limited to the lower end portion of the upper barrier portion 26.
  • the first flange portion 30 is formed at an arbitrary position of the upper barrier portion 26.
  • the position where the second flange portion 32 is formed is not limited to the upper end portion of the lower barrier portion 28.
  • the second flange portion 32 is formed at an arbitrary position of the lower barrier portion 28.
  • the upper barrier portion 26 and the lower barrier portion 28 can be easily separated. Therefore, it is possible to improve the work efficiency at the time of initial assembly and maintenance of the piping portion 4, the first valve 6 and the barrier portion 8 with respect to the storage portion 2.
  • the first valve flange portion 27 of the piping portion 4 below the second flange portion 32, it is possible to increase the maintenance efficiency of the first valve 6.
  • the cross section S of the upper portion 8c of the small diameter portion 8a can be reduced to near the cross section of the piping portion 4, the stress generated at the connection portion between the storage portion 2 and the barrier portion 8 can be reduced as much as possible.
  • the fuel tank 1 according to the fourth modification of the first embodiment of the present disclosure will be described with reference to FIG. 7.
  • the fourth modified example further limits the configuration of the barrier portion 8 described in the third modified example, but the other configurations are the same as the configurations described in the third modified example.
  • a joint 34 that can be expanded and contracted in the vertical direction is provided between the first flange portion 30 and the second flange portion 32.
  • the joint 34 is, for example, a bellows having a bellows shape in which a plurality of mountain folds 35 and valley folds 36 are alternately formed.
  • the upper end portion of the joint 34 is fastened to the first flange portion 30 by a fastening member such as a bolt 38.
  • the lower end of the joint 34 is fastened to the second flange 32 by a fastening member such as a bolt 40.
  • the joint 34 is made of a metal, an organic material (eg, rubber, resin) or the like.
  • the displacement generated in the lower wall portion 28 due to the hull shaking or the like is absorbed by the joint 34. Therefore, the stress generated at the connection point between the storage portion 2 and the barrier portion 8 can be further reduced. Further, it is possible to improve the work efficiency at the time of initial assembly and maintenance of the piping portion 4, the first valve 6 and the barrier portion 8 with respect to the storage portion 2.
  • the joint 34 is not limited to the bellows structure. Other means may be used as long as it is a stretchable joint such as a sleeve type telescopic pipe joint.
  • the fuel tank 1 according to the fifth modification of the first embodiment of the present disclosure will be described with reference to FIG.
  • the fifth modified example further limits the configuration of the piping portion 4 described in the fourth modified example, but the other configurations are the same as the configurations described in the fourth modified example.
  • the fifth modification may further limit the configuration of the piping portion 4 described in the first embodiment and the first to third modifications.
  • one end 42 of the piping unit 4 on the storage unit 2 side is located in the storage unit 2 (inside the storage space 3).
  • the airtight flange portion 44 formed at one end 42 of the piping portion 4 is configured so that an airtightness test flange (not shown) that can make the storage space 3 airtight can be attached and detached.
  • the airtight flange portion 44 is configured to be attached with a first strainer 45 configured so that foreign matter mixed in the fuel F can be removed by the flow of the fuel F.
  • the first strainer 45 is fastened to the airtight flange portion 44 by a fastening member such as a bolt 47.
  • the first strainer 45 may be directly attached to one end 42 of the piping portion 4.
  • one end 42 of the piping portion 4 is located in the storage portion 2, even if particulate foreign matter is mixed in the fuel F, it is inserted into the storage portion 2.
  • a part of the piping section 4 is blocking the movement of foreign matter in the storage section 2, and it is possible to prevent the foreign matter from being discharged from the storage section 2.
  • the first valve 6 is often attached to the flange portion 27 for the first valve. Then, after the first valve 6 is attached, the airtightness of the upstream piping portion 4a is tested. This airtightness test is performed by pressurizing the inside of the upstream piping portion 4a with a gas pumped by a pump or the like, but since the upstream piping portion 4a communicates with the storage space 3, the conventional airtightness test is performed. Then, it was necessary to inject gas into the entire storage space 3, which took a lot of time.
  • the airtightness test flange by attaching the airtightness test flange to the airtightness flange portion 44 at the time of the airtightness test, the airtightness of the upstream piping portion 4a is tested without injecting gas into the storage space 3. can do. Therefore, the time required to perform the airtightness test can be significantly reduced.
  • the first strainer 45 is attached to the airtight flange portion 44, when the fuel F is discharged from the storage portion 2, foreign matter is discharged from the storage portion 2 together with the fuel F. Can be suppressed.
  • the fuel tank 1 according to the sixth modification of the first embodiment of the present disclosure will be described with reference to FIG.
  • the sixth modification further limits the configuration of the bottom portion 5 of the storage unit 2 described in the fifth modification, but the other configurations are the same as those described in the fifth modification.
  • the sixth modification may further limit the configuration of the bottom portion 5 of the storage unit 2 described in the first embodiment and the first to fourth modifications.
  • the bottom portion 5 of the storage portion 2 is provided with a recessed portion 50 for partitioning the depressed space 48 by sinking from a part 46a of the inner surface 46 of the bottom portion 5 of the storage portion 2.
  • One end 42 of is located in the depressed space 48.
  • the airtight flange portion 44 and the first strainer 45 are also located in the depressed space 48.
  • the depressed portion 50 includes a lower wall portion 52 that surrounds the depressed space 48 from below, and a side wall portion 54 that extends upward from the peripheral edge of the lower wall portion 52 and surrounds the depressed space 48 from a direction intersecting the vertical direction. , Equipped with.
  • the lower wall portion 52 is penetrated by the piping portion 4.
  • An upper barrier portion 26 is connected to the side wall portion 54, and a first flange portion 30 is formed on the outer peripheral edge of the upper barrier portion 26.
  • one end 42 of the piping portion 4 When one end 42 of the piping portion 4 is configured to be located in the storage portion 2, the water level of the fuel F capable of discharging the fuel F from the storage portion 2 rises. Therefore, not all the fuel F can be discharged from the storage unit 2, and a part of the fuel F may remain in the storage unit 2.
  • the configuration of the sixth modification since one end 42 of the piping portion 4 is located in the depressed space 48 partitioned by being depressed from a part 46a of the inner surface 46 of the bottom portion 5, the fuel F Most of the fuel can be discharged from the storage unit 2, and the amount of fuel F remaining in the storage unit 2 can be made very small.
  • a second strainer 56 is further configured to cover the depressed space 48 from above and remove foreign matter mixed in the fuel F by the flow of the fuel F. It may be included.
  • a second strainer flange portion 58 is formed on the inner surface of the side wall portion 54. Then, the second strainer 56 is fixed on the second strainer flange portion 58 by fastening the second strainer 56 and the second strainer flange portion 58 with a fastening member such as a bolt 60.
  • the second strainer 56 since the second strainer 56 covers the depressed space 48 from above, it prevents foreign matter from moving to the depressed space 48 when the fuel F is discharged from the storage unit 2, and the storage unit 2 It is possible to prevent foreign matter from being discharged together with the fuel F. If the depressed portion 50 for partitioning the depressed space 48 is provided at the bottom 5 of the storage portion 2, the second strainer 56 can be provided so as to cover the depressed space 48 from above. It is not limited to another embodiment of the sixth modification. That is, the airtight flange portion 44 and the first strainer 45 are not indispensable configurations for providing the second strainer 56.
  • the fuel tank (1) is a fuel tank mounted on a ship (100), and has a storage portion (2) for storing fuel (F) and a bottom portion (5) of the storage portion. ), And a valve (6) first provided in the pipe portion in the direction in which the pipe portion extends from the bottom of the storage portion to the pipe portion (4) through which the fuel flows downward.
  • a barrier portion (8) that airtightly covers from the bottom portion (5) of the storage portion to at least the valve is provided, and the barrier portion is below the storage portion and is a part of the ship. It is installed in the installation section (12, 13, 22).
  • the wall portion is installed below the storage portion and at the wall portion installation portion which is a part of the ship, so that the barrier portion can be supported from below.
  • the wall portion can be constructed at a lower cost and lighter weight than when the barrier portion is not installed in the barrier portion installation portion and is hung in the storage portion, so that the fuel tank is sounder. Sex can be ensured.
  • the barrier portion installation portion includes an installation surface facing the bottom portion of the storage portion, and a part of the barrier portion is the installation. It consists of faces.
  • a part of the barrier portion installation portion can function as the barrier portion.
  • the barrier portion installation portion is a deck (12, 22).
  • the storage unit is a plurality of saddles (10A, 10B) installed in the barrier installation unit.
  • the plurality of saddles include a fixed saddle (10A) fixed to the storage portion and an abutting saddle (10B) abutting the storage portion, and the piping portion is the same. It extends downward from the bottom of the storage section, which is closer to the fixed saddle than the tangent saddle.
  • the displacement of the bottom of the storage portion is smaller when it is closer to the fixed saddle than to the contact saddle, so that the stress generated in the piping portion can be reduced.
  • the barrier portion has a cross-sectional area orthogonal to the vertical direction of the barrier portion and the storage portion. It is configured to be the smallest at the connection portion (24) to which and is connected.
  • the barrier portion is located below the upper barrier portion (26) and the upper barrier portion. It is divided into two parts, a lower barrier portion (28), a first flange portion (30) is formed on the upper barrier portion, and a second flange portion (32) is formed on the lower barrier portion. One flange portion is configured to be fixed to the second flange portion.
  • the upper barrier portion and the lower barrier portion can be easily separated. Therefore, it is possible to improve the work efficiency at the time of initial assembly and maintenance of the barrier portion.
  • the upper barrier portion has a smaller cross-sectional area orthogonal to the lower barrier portion in the vertical direction.
  • the cross section of the upper barrier portion can be reduced to near the cross section of the piping portion, so that the stress generated at the connection portion between the storage portion and the barrier portion can be reduced as much as possible. ..
  • a stretchable joint (34) is provided between the first flange portion and the second flange portion. Be done.
  • the displacement generated in the lower wall portion due to the hull shaking or the like is absorbed by the joint, so that the stress generated at the connection portion between the storage portion and the barrier portion can be further reduced.
  • one end (42) of the piping portion on the storage portion side is located in the storage portion. ..
  • the piping portion is attached to one end of the piping portion on the storage portion side so that foreign matter mixed in the fuel can be removed by the flow of the fuel.
  • the first strainer since the first strainer is attached to one end of the piping portion, it is possible to suppress the discharge of foreign matter together with the fuel from the storage portion when the fuel is discharged from the storage portion. Can be done. Alternatively, when injecting fuel into the storage unit, it is possible to prevent foreign matter from being injected into the storage unit together with the fuel from the piping unit.
  • the bottom portion of the storage portion is recessed from a part (46a) of the inner surface (46) of the bottom portion.
  • a recessed portion (50) for partitioning the depressed space (48) is provided, and one end of the piping portion on the storage portion side is located in the depressed space.
  • one end of the piping section is configured to be located inside the storage section, the water level of fuel that can discharge fuel from the storage section rises. Therefore, not all the fuel can be discharged from the storage unit, and a part of the fuel may remain in the storage unit.
  • one end of the piping portion is located in the depressed space partitioned by being depressed from a part of the inner surface of the bottom portion, most of the fuel is stored from the storage portion. It can be discharged and the amount of fuel remaining in the storage can be reduced.
  • a second strainer configured to cover the depressed space from above and remove foreign matter mixed in the fuel by the flow of the fuel (12). 56) is included.
  • the second strainer covers the depressed space from above, so that when the fuel is discharged from the storage portion, foreign matter is prevented from moving to the depressed space, and the fuel is discharged from the storage portion. At the same time, it is possible to suppress the discharge of foreign matter.
  • when injecting fuel into the storage unit it is possible to prevent foreign matter from entering a space other than the depressed space in the storage unit.
  • the ship (100) is equipped with the fuel tank according to any one of (1) to (12) above.
  • the storage section in a fuel tank in which a pipe extends from the bottom of the storage section, the storage section can be constructed at a lower cost and lighter weight to ensure more soundness. Ships can be provided.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Ocean & Marine Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)

Abstract

Dans la présente invention, un réservoir de carburant monté dans un navire comprend : une unité de stockage dans laquelle du carburant est stocké; une unité de tuyauterie qui s'étend vers le bas à partir du fond de l'unité de stockage, du carburant circulant dans l'unité de tuyauterie; une soupape initialement fournie à l'unité de tuyauterie dans la direction dans laquelle l'unité de tuyauterie s'étend à partir du fond de l'unité de stockage; et une partie de paroi de protection qui permet à une couverture étanche à l'air d'être fournie depuis le fond de l'unité de stockage jusqu'à au moins la soupape, la partie de paroi de protection étant installée sous l'unité de stockage dans une partie d'installation de partie de paroi de protection, qui est une partie du navire.
PCT/JP2021/006137 2020-02-28 2021-02-18 Réservoir de carburant et navire WO2021172164A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
KR1020227022520A KR20220106201A (ko) 2020-02-28 2021-02-18 연료 탱크, 및 선박
CN202180009939.2A CN114981160B (zh) 2020-02-28 2021-02-18 燃料罐及船舶

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2020033058A JP7379211B2 (ja) 2020-02-28 2020-02-28 燃料タンク、及び船舶
JP2020-033058 2020-02-28

Publications (1)

Publication Number Publication Date
WO2021172164A1 true WO2021172164A1 (fr) 2021-09-02

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JP (1) JP7379211B2 (fr)
KR (1) KR20220106201A (fr)
CN (1) CN114981160B (fr)
WO (1) WO2021172164A1 (fr)

Citations (5)

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JPH0752870A (ja) * 1993-08-20 1995-02-28 Ishikawajima Harima Heavy Ind Co Ltd 液化ガス運搬船における船体保護装置
KR20090098387A (ko) * 2008-03-14 2009-09-17 대우조선해양 주식회사 추진용 청정연료저장탱크를 상갑판에 구비한 선박
EP2572974A1 (fr) * 2010-05-19 2013-03-27 Daewoo Shipbuilding&Marine Engineering Co., Ltd. Structure flottante avec réservoir de combustible sur pont supérieur
JP2016222110A (ja) * 2015-05-29 2016-12-28 株式会社大島造船所 船舶
JP2019151291A (ja) * 2018-03-06 2019-09-12 川崎重工業株式会社 液化水素運搬船および船体保護方法

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JP6027678B2 (ja) * 2013-04-23 2016-11-16 川崎重工業株式会社 船舶用二重殻タンク構造および液化ガス運搬船
CN103615658A (zh) * 2013-11-22 2014-03-05 江苏现代造船技术有限公司 一种lng动力船舶的天然气加注装置
EP3074677B1 (fr) * 2013-11-25 2020-04-15 Chart Inc. Accouplement de fermeture frangible pour réservoir de gaz naturel liquide
FR3017924B1 (fr) * 2014-02-21 2016-08-26 Gaztransport Et Technigaz Procede et systeme d'inertage d'une paroi d'une cuve de stockage d'un gaz combustible liquefie
CN104728595B (zh) * 2015-03-31 2017-11-17 张家港富瑞特种装备股份有限公司 一种lng燃料罐
JP6530860B2 (ja) * 2015-09-28 2019-06-12 ワルトシラ フィンランド オサケユキチュア 船舶の燃料タンク装置
CN106081040B (zh) * 2016-08-10 2018-08-28 江苏鸿运绿色能源有限公司 一种lng船舶动力系统整体更新方法
JP6575033B2 (ja) 2017-04-07 2019-09-18 三菱造船株式会社 船舶
KR20190054844A (ko) * 2017-11-14 2019-05-22 유병용 액화가스저장탱크 시스템 및 이를 가지는 선박

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0752870A (ja) * 1993-08-20 1995-02-28 Ishikawajima Harima Heavy Ind Co Ltd 液化ガス運搬船における船体保護装置
KR20090098387A (ko) * 2008-03-14 2009-09-17 대우조선해양 주식회사 추진용 청정연료저장탱크를 상갑판에 구비한 선박
EP2572974A1 (fr) * 2010-05-19 2013-03-27 Daewoo Shipbuilding&Marine Engineering Co., Ltd. Structure flottante avec réservoir de combustible sur pont supérieur
JP2016222110A (ja) * 2015-05-29 2016-12-28 株式会社大島造船所 船舶
JP2019151291A (ja) * 2018-03-06 2019-09-12 川崎重工業株式会社 液化水素運搬船および船体保護方法

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CN114981160B (zh) 2024-05-03
CN114981160A (zh) 2022-08-30
JP2021133855A (ja) 2021-09-13
KR20220106201A (ko) 2022-07-28
JP7379211B2 (ja) 2023-11-14

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