WO2012081365A1 - 独立タンクの支持構造 - Google Patents

独立タンクの支持構造 Download PDF

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Publication number
WO2012081365A1
WO2012081365A1 PCT/JP2011/076846 JP2011076846W WO2012081365A1 WO 2012081365 A1 WO2012081365 A1 WO 2012081365A1 JP 2011076846 W JP2011076846 W JP 2011076846W WO 2012081365 A1 WO2012081365 A1 WO 2012081365A1
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WO
WIPO (PCT)
Prior art keywords
tank
side support
hull
support base
independent tank
Prior art date
Application number
PCT/JP2011/076846
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
孝史 岡藤
浩友 大塚
智 宮崎
一浩 三浦
Original Assignee
三菱重工業株式会社
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 三菱重工業株式会社 filed Critical 三菱重工業株式会社
Priority to CN201180031622.5A priority Critical patent/CN102958798B/zh
Priority to KR1020127026940A priority patent/KR101503989B1/ko
Publication of WO2012081365A1 publication Critical patent/WO2012081365A1/ja

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B25/00—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby
    • B63B25/02—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods
    • B63B25/08—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods fluid
    • B63B25/12—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods fluid closed
    • B63B25/16—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods fluid closed heat-insulated
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B3/00—Hulls characterised by their structure or component parts
    • B63B3/14—Hull parts
    • B63B3/70—Reinforcements for carrying localised loads, e.g. propulsion plant, guns
    • 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
    • B65D90/12—Supports
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B25/00—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby
    • B63B25/02—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods
    • B63B25/08—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods fluid
    • B63B2025/087—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods fluid comprising self-contained tanks installed in the ship structure as separate units
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2201/00—Vessel construction, in particular geometry, arrangement or size
    • F17C2201/01—Shape
    • F17C2201/0147—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
    • F17C2201/05—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
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/01—Mounting arrangements
    • F17C2205/0153—Details of mounting arrangements
    • F17C2205/018—Supporting feet
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/01—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the phase
    • F17C2223/0146—Two-phase
    • F17C2223/0153—Liquefied gas, e.g. LPG, GPL
    • F17C2223/0161—Liquefied gas, e.g. LPG, GPL cryogenic, e.g. LNG, GNL, PLNG
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • 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 support structure for an independent tank that supports an independent tank structurally separated from the hull in a tank housing space of the hull, and more particularly, by storing a load having a temperature difference with respect to the outside air temperature.
  • the present invention relates to a support structure for an independent tank that expands and contracts.
  • FIG. 6 shows a configuration of an LPG (liquefied petroleum gas) tanker as an example.
  • FIG. 6 is a schematic view of an independent tanker in which an independent tank is mounted inside the hull, where (A) is a cross-sectional view in the hull lateral direction and (B) is a cross-sectional view in the hull length direction.
  • the independent tank 5 is installed in the tank accommodating space 6 of the hull 9. At that time, the independent tank 5 receives the load in the vertical direction by the support structure 1.
  • a hold space 7 is formed between the side wall or ceiling of the tank housing space 6 and the independent tank 5, and an anchor (not shown) is attached. The anchor is provided to stop the movement of the hull when it rolls in the lateral direction during rolling.
  • the conventional independent tank support structure 1 includes a plurality of tank-side support bases 2 fixed to a tank bottom surface 51 and a plurality of hulls fixed to a bottom plate 91 of a tank housing space of the hull.
  • the heat insulating support 4 transmits a load in the vertical direction but is not constrained in the horizontal direction, and is slidably disposed on at least one of the tank side support base 2 and the hull side support base 3.
  • the position of the independent tank 5 is held by the frictional force generated on the contact surface between the tank side support base 2 and the heat insulating support material 4 or the contact surface between the hull side support base 3 and the heat insulating support material 4.
  • the cargo stored in the tank is a liquefied gas at a low temperature of about ⁇ 160 ° C. or a low temperature of about ⁇ 45 ° C.
  • the independent tank contracts and expands when empty.
  • the independent tank expands when a high-temperature load is stored in the independent tank, and contracts when it becomes empty.
  • the bottom of the independent tank is not fixed to the hull so that the expansion and contraction of the independent tank accompanying the temperature change during loading and unloading of the load can be accommodated. And slidable.
  • Patent Document 1 Japanese Patent Laid-Open No. 61-812857 discloses a method for supporting an independent tank.
  • Patent Document 1 Japanese Patent Laid-Open No. 61-81287
  • Patent Document 2 Japanese Patent Laid-Open No. 2000-190891 discloses a support structure for a shipboard tank.
  • the support structure of Patent Document 2 has a configuration in which a plurality of sheets made of a heat insulating support material are interposed between a tank side support base and a hull side support base. Furthermore, the heat insulating support material at the end of the tank is made to have a lower Young's modulus than other heat insulating support materials, so that stress concentration on the tank is alleviated.
  • JP 61-81287 A Japanese Patent Laid-Open No. 2000-190891
  • FIG. 8A and 8B are diagrams for explaining the eccentric stress of a conventional independent tank.
  • FIG. 8A is a side view of the support structure
  • FIG. 8B is a diagram showing the positional relationship between the tank side support base and the hull side support base.
  • the tank-side support base as shown in FIG.
  • the load center P1 of 2 and the load center P2 of the hull-side support base 3 are shifted, and eccentric stress is applied to the support bases 2 and 3 and the support material 4. Therefore, the tank side support base 2 and the hull side support base 3 may be deformed due to stress concentration due to the eccentric load. If the support bases 2 and 3 are deformed, the independent tank cannot be stably supported.
  • the tank side support base 2 and the hull side support base 3 have a structure capable of withstanding the eccentric stress.
  • a sufficient thickness is required.
  • the arrows in FIG. 8B indicate the displacement between the tank side support base 2 and the hull side support base 3 due to thermal expansion and contraction. The larger the temperature difference between the independent tank and the hull, the greater the deviation, and the amount of eccentricity and the eccentric load between the tank side support base 2 and the hull side support base 3 increase, resulting in insufficient strength of the support base due to the eccentric load. It becomes.
  • the present invention provides stress to these support portions even when the load centers of the tank side support portion and the hull side support portion are eccentric from each other due to thermal expansion and contraction accompanying the temperature change of the independent tank. It is an object of the present invention to provide an independent tank support structure that can reduce concentration and can stably support an independent tank.
  • an independent tank support structure in which a load having a temperature difference with respect to the outside air temperature is stored.
  • the independent tank support structure having at least one of the tank side support base and the hull side support base and a heat insulating support material formed to be slidable, the bottom surface of the independent tank is relative to the bottom plate.
  • the tank side support base and the hull side support base are respectively loaded with the load center of the tank side support base and the hull side. support The site where the load center of comprises an eccentric region eccentrically to each other by expansion and contraction of said bottom surface, wherein the reinforcing member for reinforcing the support table with respect to the tank load is provided.
  • the tank side support base and the hull side support base are provided with reinforcing members.
  • the reinforcing member is provided at a portion including an eccentric region where the load center of the tank side support base and the load center of the hull side support base are eccentric from each other due to thermal expansion and contraction of the independent tank.
  • the existing independent tank can be used. Furthermore, since the bottom surface of the independent tank is configured to expand and contract radially from the starting point that does not displace relative to the bottom plate of the hull, the eccentric area of the tank side support base and the hull side support base can be easily provided.
  • the reinforcement member can be surely installed at a necessary portion.
  • the outside air temperature is a temperature around the tank, and the tank circumference may be outdoor or indoor.
  • An independent tank support structure is an independent tank support structure in which a load having a temperature difference with respect to the outside air temperature is stored, and a plurality of fixed structures fixed to a bottom plate of a tank housing space of a hull.
  • a hull-side support base, a bottom surface portion where the bottom internal structure material of the independent tank is located, and the hull-side support base, are formed to be slidable with at least one of the bottom surface portion and the hull-side support base.
  • the bottom surface of the independent tank is configured to expand and contract radially due to the temperature difference around a starting point that does not displace relative to the bottom plate.
  • Each of the bottom interior material and the hull side support base includes an eccentric region where the bottom surface support point by the bottom internal material and the load center of the hull side support base are eccentric from each other by expansion and contraction of the bottom surface.
  • the reinforcing member for reinforcing the bottom Uchigamae material or the hull supporting stand with respect to the tank load is provided.
  • a reinforcing member is provided on the bottom structural member and the hull side support base. Furthermore, this reinforcing member is provided in a portion including an eccentric region where the bottom surface supporting point by the bottom inner construction material and the load center of the hull side support base are eccentric from each other due to thermal expansion and contraction of the independent tank.
  • This reinforcing member can alleviate stress concentration on the bottom surface and the hull side support base due to the eccentric load. Accordingly, it is possible to prevent the deformation of the bottom surface of the tank and to prevent the deformation of the hull side support base and to provide a support structure capable of stably supporting the independent tank. Further, by providing the reinforcing member, it is not necessary to increase the thickness of the tank bottom surface or the hull side support base as a measure against the eccentric load, and the increase in the weight of the tank or the support structure can be prevented.
  • the bottom inner construction material is a construction material (including aggregate) provided on the inner side of the tank bottom for the purpose of reinforcing the independent tank itself.
  • the bottom surface supporting point by the bottom inner structural material is at least one point of the bottom surface position to which the bottom inner structural material is connected, and in particular, the point having the highest deformation strength among the bottom surfaces by crossing a plurality of bottom inner structural materials. It is preferable that
  • the support member is not provided on the independent tank side and the reinforcing member is provided on the bottom inner construction material, it is possible to reduce the cost by reducing the weight of the support structure and man-hours.
  • the bottom surface of the independent tank is configured to expand and contract radially from the starting point that does not displace relative to the bottom plate of the hull. Can be installed.
  • the reinforcing member may be partially provided so as to include the eccentric region in the periphery of the load center. As a result, the minimum necessary reinforcement corresponding to the stress concentration due to the eccentric load is performed, and the weight of the support structure can be reduced.
  • the reinforcing member may be provided over the entire periphery of the load center. This eliminates the need to consider the position of the reinforcing member relative to the expansion / contraction direction of the tank bottom. Therefore, when the reinforcing member is provided on the support base, the work of attaching the support base to the independent tank is facilitated, and when the reinforcing member is provided on the bottom structure material, the attaching work of the reinforcing member is facilitated.
  • the tank side support base and the hull side support base are orthogonal to the top plate portion and the top plate portion that comes into surface contact with the heat insulating support material, and one side edge portion is connected to the top plate portion.
  • a leg portion composed of a plurality of flat plate members arranged so as to pass through the load center axis, and the reinforcing member that is connected between the adjacent flat plate members while one side edge portion is connected to the top plate portion; It is preferable to contain.
  • the several flat plate member which forms a leg part will be arrange
  • the said reinforcement member may be provided over the vertical direction full length of the said leg part from the said top-plate part. According to this configuration, the upper and lower end portions of the reinforcing member abut on the top plate portion and the tank bottom surface or the bottom plate of the hull to support the top plate portion.
  • the tank load can be transmitted to the tank, and a larger eccentric load can be handled.
  • the said reinforcement member may be provided from the said top plate part to the position shorter than the vertical direction full length of the said leg part.
  • the reinforcing member is formed such that the central portion between the adjacent plate-like members is shorter in the vertical direction than the end side connected to the plate-like member.
  • the load received by the top plate in the support base is transmitted from the reinforcing member to the plate member. Therefore, by shortening the reinforcing member at the central portion between the plate-like members that does not contribute to load transmission from the end side, the reinforcing member can be further reduced in size, and the weight of the support structure can be reduced.
  • the tank-side support base and the hull-side support base, or the bottom inner structure material of the tank and the hull-side support base are provided with a reinforcing member, and the reinforcing member includes an eccentric region with a load center.
  • the reinforcing member includes an eccentric region with a load center.
  • the eccentric region can be easily specified, and the reinforcing member can be used as a necessary part. It can be installed reliably.
  • FIG. It is a figure explaining the support structure of the independent tank which concerns on 1st Embodiment of this invention
  • (A) is a side view of a support structure
  • (B) shows the positional relationship of a tank side support stand and a hull side support stand.
  • FIG. It is a figure which shows the bottom face of an independent tank.
  • the upper figure is a top view of a support stand in each of (A)-(G),
  • the lower figure is a side view of a support stand is there.
  • FIG. 1 It is a perspective view which shows the bottom part construction material which concerns on 2nd Embodiment of this invention.
  • the support structure of the independent tank is used when supporting the independent tank in which a load having a temperature difference with respect to the outside air temperature is stored in the tank housing space of the hull.
  • the outside air temperature is a temperature around the tank, and the tank circumference may be outdoor or indoor.
  • FIG. 1A and 1B are views for explaining a support structure for an independent tank according to a first embodiment of the present invention, in which FIG. 1A is a side view of the support structure, and FIG. 1B is a position of a tank side support base and a hull side support base. It is a figure which shows a relationship. 1B is a view of the support structure 1 as viewed from above, and the top plates 21 and 31 are omitted from the tank side support base 2 and the hull side support base 3, respectively.
  • the independent tank support structure 1 according to the first embodiment of the present invention includes a tank-side support 2 fixed to a bottom surface 51 of the independent tank and a hull-side support fixed to a bottom plate 91 of a tank housing space of the hull.
  • a base 3 and a heat insulating support 4 interposed between the tank side support base 2 and the hull side support base 3 are provided.
  • the tank-side support base 2 supports the load of the independent tank, and a plurality of tank-side support bases 2 are fixed to the bottom surface 51 of the independent tank at a predetermined interval.
  • the tank side support 2 is made of a material having high rigidity, for example, steel.
  • the tank side support base 2 is provided with a reinforcing member 23 that reinforces the tank side support base 2 against the tank load. The configuration of the reinforcing member 23 will be described later.
  • the tank side support base 2 includes a top plate portion 21 that is in surface contact with the heat insulating support material 4, and one side edge portion connected to the top plate portion 21 and the top plate.
  • leg portions 22 made of a plurality of flat plate members arranged so as to pass through the load center axis P ⁇ b> 1 orthogonal to the portion 21. Further, one side edge portion is connected to the top plate portion 21, and a reinforcing member 23 is provided between adjacent flat plate members of the leg portion 22.
  • the reinforcing member 23 is preferably plate-shaped.
  • the hull side support base 3 supports the load of the independent tank via the tank side support base 2 and the heat insulating support material 4, and a plurality of the hull side support bases 3 are fixed to the bottom plate 91 of the tank accommodating space of the hull at a predetermined interval. Yes. Further, the hull side support base 3 is provided with a reinforcing member 33 that reinforces the hull side support base 3 against the tank load. The configuration of the reinforcing member 33 will be described later together with the reinforcing member 23 of the tank side support 2. As a suitable configuration of the hull supporting table 3, the same configuration as the tank supporting table 2 described above can be used. That is, the hull side support base 3 includes a top plate portion 31, a leg portion 32, and a reinforcing member 33.
  • the heat insulating support material 4 supports the load of the independent tank and functions as a heat insulating material between the bottom surface 51 of the independent tank and the bottom plate 91 of the tank housing space of the hull.
  • the heat insulating support material 4 wood, resin, or resin reinforced with a cloth impregnated with resin to increase strength is used. Further, a laminate of these thin plate materials is preferably used.
  • the heat insulating support material 4 includes, for example, a laminate of a bakelite as a laminate of phenol resin while being hardened with a phenol resin, or a material in which wood is impregnated with resin and hardened.
  • the heat insulating support material 4 is interposed between the tank side support base 2 and the hull side support base 3 and is slidable with at least one of the tank side support base 2 and the hull side support base 3. . That is, the heat-insulating support material 4 and the tank-side support base 2 or the heat-insulating support material 4 and the hull-side support base 3 are fixed, and the heat-insulating support material 4 and the non-fixed support base are the heat-insulating support material. 4 may be slid, or the heat insulating support material 4 and both support bases may be slid.
  • the surface of the heat insulating support material 4 holds the independent tank against the swing of the hull and slides with the tank side support base 2 or the hull side support base 3 against the thermal expansion and contraction of the independent tank. It is preferable to have such a friction coefficient.
  • a ship to which the present embodiment is applied is an independent ship that stores a cargo having a temperature difference with respect to the outside air temperature, such as an LPG (liquefied petroleum gas) tanker or an LNG (liquefied natural gas) tanker.
  • LPG liquefied petroleum gas
  • LNG liquefied natural gas
  • a ship equipped with a tank. 6A and 6B are schematic views of an independent tanker in which an independent tank is mounted inside the hull.
  • FIG. 6A is a cross-sectional view in the horizontal direction of the hull
  • FIG. 6B is a cross-sectional view in the length direction of the hull.
  • the independent tank 5 is mounted in the tank housing space 6 of the hull 9.
  • a hold space 7 is formed between the side wall or ceiling of the tank housing space 6 and the independent tank 5, and an anchor (not shown) is attached thereto.
  • the anchor is provided to stop the movement of the hull when it rolls in the lateral direction during rolling.
  • a support structure 1 that receives a load in the vertical direction of the independent tank 5 is provided in the hold space 7 between the tank housing space 6 and the independent tank 5.
  • FIG. 2 is a view showing the bottom surface of the independent tank.
  • a plurality of tank-side support bases 2 are fixed to the bottom surface 51 of the independent tank 5 at a predetermined interval. That is, the support structure 1 is disposed at the position of the tank side support base 2.
  • the independent tank 5 stores a load at a temperature lower or higher than the outside air temperature, and thus expands and contracts when the load is unloaded.
  • the bottom surface 51 of the independent tank 5 expands and contracts radially due to a temperature difference around a starting point 50 that does not displace relative to the bottom plate 91 (see FIG. 6) of the tank housing space 6. It is configured as follows.
  • the fixing means may be provided on the bottom surface 51 so that the starting point 50 is fixed by the fixing means and the other bottom surface part can be displaced. Independently, only the starting point 50 of the bottom surface 51 is not displaced. It is good also as a structure which suspends and fixes the tank 5 from the tank accommodating space 6 upper part.
  • FIG. 2 shows, as an example, a case where the independent tank 5 is empty and at room temperature (same as the outside air temperature), and the arrows in the figure indicate the independent tank 5 when a load having a temperature lower than the outside air temperature is loaded in the tank. The direction which the bottom face 51 of this contracts is shown. As shown in the figure, the bottom surface 51 of the independent tank 5 is radially expanded and contracted around the starting point 50.
  • the reinforcing member 23 of the tank side support base 2 and the reinforcing member 33 of the hull side support base 3 are such that the load center P1 of the tank side support base 2 and the load center P2 of the hull side support base 3 are It is provided in each part including the eccentric region 8 that is eccentric to each other by expansion and contraction.
  • the load center P1 of the tank side support base 2 and the load center P2 of the hull side support base 3 are arranged on the same axis.
  • the independent tank 5 is thermally expanded and contracted.
  • the tank side support base 2 fixed to the bottom surface 51 slides in the direction of the arrow in FIG. 1B, for example.
  • the reinforcing members 23 and 33 are provided on the support bases 2 and 3, stress concentration on the tank side support base 2 and the hull side support base 3 due to the eccentric load can be reduced. it can. Therefore, the support structure 1 that can prevent the tank-side support base 2 and the hull-side support base 3 from being deformed and can stably support the independent tank 5 can be provided. Further, by providing the reinforcing members 23 and 33, it is not necessary to increase the thickness of the support bases 2 and 3 as a measure against the eccentric load, and an increase in the weight of the support structure 1 can be prevented.
  • the existing independent tank 5 can be used.
  • the bottom surface 51 of the independent tank 5 is configured to expand and contract radially from the starting point that does not displace relative to the bottom plate 91 of the hull 9, the tank side support base 2 and the hull side support base 3.
  • the eccentric region 8 can be easily specified, and the reinforcing members 23 and 33 can be reliably installed at necessary portions.
  • the top plate portions 21 and 31, the leg portions 22 and 32 made of a plurality of flat plate members, and the reinforcement The members 23 and 33 are included.
  • the plurality of flat plate members forming the leg portions 22 and 32 are arranged radially about the load center axis. Further, by installing the reinforcing members 23 and 33 between adjacent flat plate members, an eccentric load can be transmitted as an axial force to the load center axis, and stress due to the eccentricity of the load center can be reduced. .
  • the upper diagram is a plan view of the support table
  • the lower diagram is a side view of the support table.
  • the hull side support stand 3 is demonstrated here, the same structure is employable also about the tank side support stand 2.
  • the hull side support base 3 includes a top plate portion 31, leg portions 32 made of a plurality of flat plate members, and a reinforcing member 33.
  • the leg portion 32 has a shape in which flat plate members intersect with a cross. That is, the leg portion 32 has a configuration in which four flat plate members are arranged at intervals of 90 degrees around the load center P2.
  • the reinforcing member 33a of the hull side support base 3a includes the eccentric region 8 (see FIG. 1) around the load center P2a.
  • the arc-shaped reinforcing member 33a is constructed between adjacent plate-like members.
  • the reinforcing member 33a is provided from the top plate portion 31a to a position shorter than the entire length in the vertical direction of the leg portion 32a, and is not connected to the bottom plate 91. Thereby, the reinforcement member 33a can be reduced in size and the weight of the support structure can be reduced. Further, the reinforcing member 33a is formed such that the central portion between the adjacent plate-like members has a shorter vertical length than the end side connected to the plate-like member. That is, the reinforcing member 33a is partially cut out at the center between the plate-like members. This is because the load received by the top plate 31a in the hull side support base 3a is transmitted from the reinforcing member 33a to the plate-like member of the leg portion 32a.
  • the reinforcing member 33a can be further reduced in size, and the weight of the support structure can be further reduced. Become.
  • the support structure of FIG. 3B is partially provided so that the reinforcing member 33b of the hull side support base 3b is formed in an arc shape and includes the eccentric region 8 (see FIG. 1) around the load center P2b. ing. As a result, the weight of the support structure 1b can be reduced.
  • the reinforcing member 33b is provided over the entire length in the vertical direction from the top plate portion 31b to the leg portion 32b. As a result, the upper and lower end portions of the reinforcing member 33b abut against the top plate portion 31b and the bottom plate 91 to support the top plate portion 31b. Therefore, in addition to the load center axis, the tank load is also applied vertically to the reinforcing member 33b. It can be transmitted and can cope with a larger eccentric load.
  • the reinforcing member 33c of the hull side support base 3c is provided in an annular shape over the entire circumference of the load center P2c. This eliminates the need to consider the position of the reinforcing member 33c with respect to the expansion / contraction direction of the tank bottom surface 51. Therefore, it is easy to attach the hull side support base 3c. Further, the reinforcing member 33c is provided from the top plate portion 31c to a position shorter than the full length in the vertical direction of the leg portion 32c, and is not connected to the bottom plate 91. Thereby, the reinforcing member 33c can be reduced in size, and the weight of the support structure can be reduced.
  • the reinforcing member 33d of the hull side support base 3d is provided in an annular shape over the entire circumference of the load center P2d. This eliminates the need to consider the position of the reinforcing member 33d with respect to the expansion / contraction direction of the tank bottom surface 51. Therefore, the mounting work of the hull side support base 3d becomes easy.
  • the reinforcing member 33d is provided over the entire length in the vertical direction from the top plate portion 31d to the leg portion 32d. Therefore, it is possible to cope with a larger eccentric load.
  • the reinforcing member 33e of the hull side support base 3e is provided in an annular shape over the entire circumference of the load center P2e. This facilitates the mounting operation of the hull side support base 3c.
  • the reinforcing member 33e has a flat plate shape, is attached to the plate-like member of the leg portion 32 at an angle of 45 degrees, and is formed in a rectangular ring shape as a whole.
  • the reinforcing member 33e is provided from the top plate portion 31e to a position shorter than the entire length in the vertical direction of the leg portion 32e, and is not connected to the bottom plate 91. Thereby, the reinforcing member 33e can be reduced in size, and the weight of the support structure can be reduced.
  • a plurality of reinforcing members 33f of the hull side support base 3f are provided around the load center P2f at a predetermined interval.
  • flat reinforcing members 33f are provided radially about the load center P2f. This facilitates the mounting operation of the hull side support base 3f.
  • the reinforcing member 33f is provided from the top plate portion 31f to a position shorter than the entire length in the vertical direction of the leg portion 32f, and is not connected to the bottom plate 91. Thereby, the reinforcing member 33f can be reduced in size, and the weight of the support structure can be reduced.
  • the reinforcing member 33g of the hull side support base 3g is provided in an annular shape around the entire circumference of the load center P2g. This facilitates the mounting operation of the hull side support base 3g. Further, the reinforcing member 33g has a shape bent at 90 degrees, and is formed in a rectangular ring shape as a whole. Further, the reinforcing member 33f is provided from the top plate portion 31f to a position shorter than the entire length in the vertical direction of the leg portion 32f, and is not connected to the bottom plate 91. Thereby, the reinforcing member 33f can be reduced in size, and the weight of the support structure can be reduced. In the support structure shown in FIGS. 3E to 3G, the reinforcing member may be partially provided around the center of the load, and further from the top plate portion to the entire length in the vertical direction of the leg portion. It may be provided.
  • FIG. 4 is a side view showing a support structure for an independent tank according to the second embodiment of the present invention. Note that in the following second embodiment, detailed description of the same configuration as that of the first embodiment described above will be omitted.
  • the independent tank support structure 1 ′ according to the second embodiment of the present invention includes a plurality of hull side support bases 3 ′ fixed to a bottom plate 91 of a tank housing space of the hull, a tank bottom surface 51, and a hull side support base 3. And a heat-insulating support material 4 ′ interposed therebetween.
  • the structure of the hull side support 3 ' is the same as that of the first embodiment, and includes a top plate 31', a leg 32 ', and a reinforcing member 33'.
  • the bottom surface 51 of the independent tank 5 is configured to expand and contract radially due to a temperature difference around a starting point that is not displaced relative to the bottom plate 91.
  • the tank side support 2 shown in the first embodiment is not provided. Therefore, the heat insulating support material 4 ′ is interposed between the bottom surface portion 51 a where the bottom structuring material 52 of the independent tank 5 is located and the hull side support base 3 ′. Further, the bottom inner construction material 52 includes an eccentric region where the bottom surface support point P3 by the bottom inner construction material 52 and the load center of the hull side support base 3 ′ are eccentric to each other by expansion and contraction of the bottom surface 51, A reinforcing member 25 is provided to reinforce the bottom structural member 52 against the tank load.
  • the bottom surface support point P3 by the bottom inner construction material 52 is at least one point of the bottom surface position to which the bottom inner construction material 52 is connected, and in particular, the plurality of bottom inner construction materials 52 intersect to form the most deformation of the bottom surface 51. It is preferable that the strength is high.
  • FIG. 5 shows a perspective view of the bottom structural member 52.
  • the bottom inner construction material 52 is a construction material (including aggregate) provided inside the tank bottom surface 51 for the purpose of reinforcing the independent tank itself.
  • the bottom inner construction material 52 generally has a configuration in which a transverse aggregate and a longitudinal aggregate intersect each other. It is preferable that the position where the bottom inner structural material 52 intersects is a bottom surface portion 51a, and the intersecting point is a bottom surface support point P3. The reason for this is that the position where the bottom structural member 52 intersects is the point with the highest deformation strength.
  • the reinforcing members 25 and 33 ' are provided on the bottom inner structural member 52 and the hull side support base 3'.
  • the reinforcing members 25 and 33 ′ stress concentration on the bottom surface 51 and the hull side support base 3 ′ due to the eccentric load can be reduced. Therefore, it is possible to prevent the deformation of the tank bottom surface 51 and to prevent the deformation of the hull side support base 3 ′ and to provide a support structure 1 ′ that can stably support the independent tank 5.
  • the reinforcing members 25 and 33 ′ it is not necessary to increase the thickness of the tank bottom surface 51 and the hull side support base 3 ′ as a measure against the eccentric load, and an increase in the weight of the tank 5 and the support structure 1 ′ can be prevented. .
  • the support member 1 is not provided on the independent tank side, and the reinforcing member 25 is provided on the bottom construction material 52. Therefore, the cost of reducing the weight and man-hours of the support structure 1 'is reduced. Reduction is possible. Furthermore, since the bottom surface 51 of the independent tank 5 is configured to radially expand and contract around a starting point that is not displaced relative to the bottom plate 91 of the hull 9, the eccentric region can be easily specified, and the reinforcing member 25. , 33 ′ can be reliably installed at a necessary site.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Ocean & Marine Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
PCT/JP2011/076846 2010-12-13 2011-11-22 独立タンクの支持構造 WO2012081365A1 (ja)

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CN201180031622.5A CN102958798B (zh) 2010-12-13 2011-11-22 独立储罐的支承结构
KR1020127026940A KR101503989B1 (ko) 2010-12-13 2011-11-22 독립 탱크의 지지 구조

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JP2010277282A JP5737920B2 (ja) 2010-12-13 2010-12-13 独立タンクの支持構造
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JP2012126173A (ja) * 2010-12-13 2012-07-05 Mitsubishi Heavy Ind Ltd 独立タンクの支持構造
WO2014174819A1 (ja) * 2013-04-23 2014-10-30 川崎重工業株式会社 船舶用タンクの支持構造および液化ガス運搬船
WO2022067191A1 (en) * 2020-09-28 2022-03-31 Arcosa Marine Products, Inc. Container hopper barge with pedestal support system

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KR200482843Y1 (ko) 2013-10-04 2017-03-08 대우조선해양 주식회사 독립형 탱크의 지지 구조물
KR101422624B1 (ko) * 2013-10-29 2014-07-23 (주)건양선박설계 잭을 포함하는 독립 탱크용 지지 장치 및 이를 갖는 운반선
DE102014203351B4 (de) * 2014-02-25 2017-10-19 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Auflager zur Lagerung und zur thermischen Isolation von Fluidtanks
KR101674724B1 (ko) * 2014-08-25 2016-11-09 주식회사 엔케이 단열블록 고정턱이 형성된 서포트 구조체 및 이를 이용한 2중벽 탱크
CN105711737B (zh) * 2014-12-03 2017-10-27 江南造船(集团)有限责任公司 A型独立液货舱底面中间防横摇支座绝缘的安装方法
CN105416514A (zh) * 2015-12-21 2016-03-23 大连中远船务工程有限公司 Lng运输船液货罐底座安装方法及液货罐底座结构
KR101969534B1 (ko) * 2017-05-30 2019-04-16 주식회사 엔케이 단열블록을 구비하는 lng 저장탱크용 지지장치
JPWO2020065746A1 (ja) * 2018-09-26 2021-08-30 株式会社ハイテム スケール付きタンク
DE102021102749A1 (de) * 2021-02-05 2022-08-11 Deutsche Holzveredelung Schmeing GmbH & Co. KG Lagerblock und Verfahren zur Herstellung

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WO2014174819A1 (ja) * 2013-04-23 2014-10-30 川崎重工業株式会社 船舶用タンクの支持構造および液化ガス運搬船
JP6031188B2 (ja) * 2013-04-23 2016-11-24 川崎重工業株式会社 船舶用タンクの支持構造および液化ガス運搬船
WO2022067191A1 (en) * 2020-09-28 2022-03-31 Arcosa Marine Products, Inc. Container hopper barge with pedestal support system

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JP2012126173A (ja) 2012-07-05
CN102958798A (zh) 2013-03-06
KR101503989B1 (ko) 2015-03-18
JP5737920B2 (ja) 2015-06-17
CN102958798B (zh) 2015-07-15

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