WO2014168204A1 - Lng船またはlpg船 - Google Patents
Lng船またはlpg船 Download PDFInfo
- Publication number
- WO2014168204A1 WO2014168204A1 PCT/JP2014/060402 JP2014060402W WO2014168204A1 WO 2014168204 A1 WO2014168204 A1 WO 2014168204A1 JP 2014060402 W JP2014060402 W JP 2014060402W WO 2014168204 A1 WO2014168204 A1 WO 2014168204A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- ship
- tank
- lng
- long
- long tank
- Prior art date
Links
- 238000005192 partition Methods 0.000 claims abstract description 26
- 239000000463 material Substances 0.000 claims abstract description 23
- 239000007788 liquid Substances 0.000 claims description 40
- 238000000926 separation method Methods 0.000 claims description 13
- 239000003949 liquefied natural gas Substances 0.000 description 46
- 238000010276 construction Methods 0.000 description 10
- 230000000694 effects Effects 0.000 description 10
- 239000012528 membrane Substances 0.000 description 9
- 239000007789 gas Substances 0.000 description 6
- 239000011810 insulating material Substances 0.000 description 5
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- 229910000838 Al alloy Inorganic materials 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 239000000969 carrier Substances 0.000 description 2
- 238000002309 gasification Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000003345 natural gas Substances 0.000 description 2
- 230000032258 transport Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 229910001374 Invar Inorganic materials 0.000 description 1
- 229910000990 Ni alloy Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- LSNNMFCWUKXFEE-UHFFFAOYSA-N Sulfurous acid Chemical compound OS(O)=O LSNNMFCWUKXFEE-UHFFFAOYSA-N 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
Images
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
-
- 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
- B63B11/00—Interior subdivision of hulls
-
- 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
- B63B11/02—Arrangement of bulkheads, e.g. defining cargo spaces
-
- 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
- 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
- B63B2025/085—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods fluid comprising separation membranes
-
- 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
- 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
- F17C2260/00—Purposes of gas storage and gas handling
- F17C2260/01—Improving mechanical properties or manufacturing
- F17C2260/016—Preventing slosh
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2270/00—Applications
- F17C2270/01—Applications for fluid transport or storage
- F17C2270/0102—Applications for fluid transport or storage on or in the water
- F17C2270/0105—Ships
Definitions
- the present invention relates to a liquefied natural gas (LNG) or LPG ship.
- LNG liquefied natural gas
- LNG Since LNG emits less nitrogen oxide and sulfurous acid gas during combustion, demand for LNG is increasing year by year as clean energy.
- LNG is a natural gas cooled to about -162 ° C and liquefied.
- the tank of the LNG carrier that transports this gas to the sea uses low-temperature materials to withstand a wide range of temperature changes. It has a structure that takes stress into consideration.
- LNG carriers since LNG carriers have a mission of high-speed and mass transportation, they are usually equipped with a navigation speed of around 20 knots, and the hulls tend to be larger and have a tank capacity exceeding 200,000 m 3.
- the LNG tank mounted on the LNG carrier is roughly divided into two types, one is a moss type spherical tank system, and the other is a membrane system (for example, US Pat. Nos. 5,697,312 and 7,137,345). .
- Moss type spherical tank system is to install a spherical tank made of aluminum alloy in the hold through a skirt-like support structure extending downward from its equator.
- this tank the weight of the liquid loaded therein and the dynamic force acting on the liquid loaded by the ship's sway are all carried by the tank itself and transmitted to the hull via the skirt.
- the heat insulating material for the tank is, of course, provided on the outer surface of the tank.
- the membrane type tank is provided with a heat insulating material inside the double hull structure of the hull, and its surface is liquid-tightly covered with a membrane.
- the liquid pressure of LNG is transmitted to the hull structure via a heat insulating material.
- the membrane is made of stainless steel or a nickel alloy (Invar) with a small thermal expansion coefficient.
- the moss type spherical tank has a drawback that the tank volume is small for the size of the hull.
- membrane type tanks can be made in a shape along the hold, so a large tank space can be taken and volume efficiency is good.
- a membrane tank encounters stormy weather when the load is half-loaded, the shaking of the hull and the shaking of the LNG liquid level synchronize, and a sloshing phenomenon in which excessive pressure is applied to the inner wall of the tank, that is, the hull shaking
- the liquid load in the tank swells violently and the impact may damage the membrane and heat insulating material.
- the tank wall is curved, so that it can receive impacts, and since the heat shield is outside the tank, sloshing is hardly a problem. Therefore, with respect to the membrane tank, it is required to keep the tank at a full load or close to it so that the LNG of the cargo does not wave.
- the independent square tank is an ideal system without the disadvantage that the tank volume is reduced for the size of the hull, unlike the spherical tank.
- the material of the plate used is limited to the material having the strength characteristics in the cryogenic region, and stainless steel and aluminum are mainly used as the material. It is disadvantageous in terms of economy, and only a few ships have been built.
- the main problem of the present invention is to obtain an economical hull structure by adopting an independent rectangular tank that has a large tank volume with respect to the ship size and can reduce material costs.
- Another object of the present invention is to obtain an economical hull structure while avoiding double bulkhead (bulk) construction between tanks.
- the present invention that has solved the above problems is as follows.
- ⁇ Invention of Claim 1> It has a structure in which a substantially rectangular independent tank is installed in the hold without being integrated with the hull structure material.
- the tank is a long tank whose length is longer than the width direction of the ship, and is installed in the hold along the length of the ship.
- the long tank is divided into two or more liquid cargo chambers in the ship length direction by a partition plate partitioned by a single plate in the ship width direction.
- An LNG ship characterized by that.
- a rectangular independent tank is not integrated with a hull structure (for example, double hull structure) material (no welding structure is used), and a structure installed in the hold does not require expensive materials and is economical. It will be something like that. Since double hull block construction and long tank manufacturing construction are independent and can be done in parallel, construction costs are reduced and the total construction time is reduced. Since the tank is substantially square, the volumetric efficiency of the tank is greater than the spherical tank. When multiple independent tanks are to be installed on the hull, for example, even if there is a collision, double bulkhead construction is performed between independent tanks to prevent the other tank from being affected or to prevent thermal deformation. There is a need. This double bulkhead construction and its necessary materials are the factors that increase costs.
- a double bulk between adjacent liquid cargo chambers is obtained. Since the head construction and its material can be replaced by a partition plate partitioned by a single plate, it is extremely economical. That is, a double bulkhead plate as a hull strength member, its heat insulation work, etc. can be dispensed with.
- cofferdam structure refers to a structure in which an empty space (void) space is formed between the bulkheads (partition walls). As a result, the heat and gas in the event of a fire can be shut off.
- a heat deformation movement stop chock is provided for the key part, it is possible to prevent heat deformation movement stop of the independent long tank in the ship direction.
- a thermal deformation detent chock with a width in the ship width direction is provided on the hull side so that the upper part of the liquid tank in the center of the ship length of the long tank becomes the center point of thermal deformation of the tank in the front-rear direction. The movement of the tank in the front-rear direction is minimized, and this point is the center of thermal deformation. Thereby, the stress of the connection part of the expansion joint of the tank and the tank-connected LNG pipe and the tank and the pipe outside the tank can be minimized.
- the long tank has two liquid cargo chambers in the direction of the ship's length, and a key part protrudes and is integrally provided at the upper center of the ship's direction.
- the long tank can be isolated into an independent liquid storage chamber by a partition plate.
- it is necessary to control the liquid level and adjust the liquid level for each liquid loading chamber and the relational structure between the vapor dome of the tank corresponding to each liquid loading chamber and the upper stopper remains complicated. It is.
- FIG. 9 when the adjacent liquid cargo chambers communicate with each other by the separation space separated from the top plate, the pressure between the adjacent liquid cargo chambers becomes equal, and the liquid level control and the liquid
- the surface adjustment operation can be handled in the same way as a single liquid loading chamber, and the relationship between the tank steam dome and the upper stopper is simplified and economical.
- LNG ship in the present invention is used in a broad sense including LNG carrier, FLNG ship, FSRU ship, SRV ship and the like.
- this LNG tanker is connected in order of the bow portion 10, the tank compartment 12, the engine room 14, and the stern part 16 from the front.
- a chamber 20 is provided.
- the tank compartment is divided into a plurality of compartments by a horizontal partition wall 32.
- the present invention is an LNG ship having a structure in which a substantially rectangular independent tank 30 is installed in the hold without being integrated with the hull (double hull) structural members 36 and 35. Further, cradles 36, 36... Integrated with the hull structure material 35 are provided on the bottom surface of the independent rectangular tank 30, and the tank 30 is installed on the cradle 36, 36.
- the tank group is an independent rectangular long tank 30 having a ship length direction longer than the ship width direction, and is installed in the hold along the ship length direction.
- the long tank 30 is not integrated with the hull structure (for example, double hull structure) materials 34 and 35 (no welding structure is adopted), and an expensive material is unnecessary if the structure is installed in the hold. Yes, it will be economical.
- the cross section of the long tank 30 is substantially square, the volumetric efficiency of the tank is larger than that of the spherical tank.
- the long tank 30 is divided into two or more liquid cargo chambers in the ship length direction by a partition plate 31 partitioned by a single plate in the ship width direction.
- the illustrated example is an example of three liquid loading chambers 30-1, 30-2, and 30-3.
- each liquid cargo chamber 30-1, 30-2, 30-3 can be selected as appropriate.
- the width it is desirable to secure 18 to 35 m and 2 or 3 liquid cargo chambers in the ship's direction. Accordingly, the length in the ship length direction is preferably 40 to 180 m.
- a key portion 40 is integrally provided so as to protrude from the center upper portion of the long tank 30, and a thermal deformation detent chock 41 is provided on the hull structural material side in front of and behind the center line direction of the ship corresponding to the key portion 40. It is desirable to provide it. Thereby, it can restrict
- a heat insulating material can be provided on the outer surface of the long tank 30.
- a tank group row that is continuous in the ship length direction, in which the tanks 33, 33 of a single liquid cargo chamber not having the partition wall 31 of the present invention are arranged before and after the long tank 30, may be configured.
- each of the long tank 30 and the adjacent tanks 33 and 33 is insulated by the cofferdam structure 32.
- the long tank 30 can be provided on each of the left and right sides of the center line direction of the ship.
- Reference numeral 31 denotes a partition plate which is partitioned by a single plate in the ship width direction similar to the example of FIG. 2, and 37 is a partition plate which is partitioned by a single plate along the center line direction of the ship. According to this form, the advantage of the volume can be exhibited with respect to a wide hull.
- the “substantially square independent tank” may be a square as a whole in cross section, and does not need to be strictly square.
- the tank 30C may have a chamfered portion 30a, a rounded portion 30b at the corner portion, and an inclined surface 30c at the upper surface.
- a tank 30D having a small tank 30d at the top and a main body tank 30e at the bottom may be used.
- the material of the tank 30 aluminum alloy, 9% nickel steel, stainless steel, etc. can be used.
- the upper part of the partition plate 31A of the long tank 30 is separated from the top plate 30U of the long tank 30, and the separation space 31U is similar to the same separation that is not shown by reference numerals.
- Adjacent liquid cargo chambers 30-2 and 30-3 communicate with each other depending on the space.
- the lower part of the partition plate 31A of the long tank 30 is separated from the top plate 30D of the long tank 30, and the adjacent liquid cargo chambers 30-1 and 30-2 are mutually separated by the separation space 31D.
- the other liquid partition chambers 30-2 and 30-3 can also be communicated with each other by the same separation space, which is not shown in the figure, with respect to the other partition plate 31A.
- the upper portion of the partition plate 31 ⁇ / b> A is also separated from the top plate 30 ⁇ / b> U of the long tank 30.
- Communication may be at the top or at the bottom, and of course, both.
- the height of the separation space 31U is within 10% of the partition plate 31A
- the height of the separation space 31D is within 5% of the partition plate 31A. This is desirable for maintaining the strength of the long tank 30.
- the present invention is applicable to FLNG ships (LNG-FPSO (Floating Production, Storage and Off-loading system)), FSRU ships, and SRV ships, in addition to LNG carriers, as well as dealing with the sloshing phenomenon. it can.
- LNG-FPSO Floating Production, Storage and Off-loading system
- LNG-FPSO FLNG ship
- LNG is produced and stored by removing impurities from liquefied natural gas from the offshore gas field and liquefying on a ship or barge with LNG storage capacity.
- LNG-FPSO can be built and towed in the area, it is possible to secure workers relatively easily.
- the LNG ship of the present invention includes a regasification facility, and examples thereof include FSRU (Floating Storage and Re-gasification Unit) and SRV (Shuffle and Re-gasification Vessel).
- FSRU Floating Storage and Re-gasification Unit
- SRV Shuffle and Re-gasification Vessel
- the FSRU is equipped with a regasification device, a ship with LNG storage capacity is fixed offshore, and LNG is received from other LNG ships.
- the natural gas regasified by the FSRU is sent to an onshore pipeline.
- SRV does not transfer LNG from other LNG ships, but transports LNG mounted on the liquefaction base to the receiving point, regasifies it on the deck, and sends gas to the onshore pipeline.
- the structure of the ship of the present invention can be applied to the transportation of LPG as well as LNG. Therefore, LPG ships are also targeted.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
Description
しかし、その使用板の材質が極低温領域においてその強度特性を持つ材質に限られ、その材質として、ステンレス鋼、アルミ材が主に使用されるため、建造コストの面で モス型、メンブレン型に経済性の点で不利であり、数隻の建造実績にとどまっている。
実質的に方形の独立タンクを、船体構造材と一体化することなく、船倉内に設置した構造を有し、
前記タンクは、船幅方向より船長方向が長いロングタンクであり、船長方向に沿って船倉内に設置し、
前記ロングタンクは、船幅方向の1枚の板で仕切る隔壁板によって船長方向に2以上の液荷室に分割されている、
ことを特徴とするLNG船。
方形の独立タンクを、船体構造(たとえば二重船殻構造)材と一体化することなく(溶接構造は採らない)、船倉内に設置した構造であると、高価な材料は不要であり、経済的なものとなる。
二重船殻ブロック工事とロングタンクの製造工事とが独立し並行的な工事が可能であるので、建設コストが低減し、全竣工時間の短縮にも寄与する。
タンクは実質的に方形であるから、タンクの容積効率が球形タンクより大きい。
船体に独立タンクを複数設置しようとする場合、たとえば衝突があっても、他方のタンクへの影響を防止するため、あるいは熱変形防止のために、独立タンク間に二重のバルクヘッド工事をする必要がある。この二重のバルクヘッド工事及びその必要材料が、コストを高める要因である。
しかるに、本発明に従って、ロングタンクとし、船幅方向の1枚の板で仕切る隔壁板によって船長方向に2以上の液荷室に分割すると、隣接する液荷室(タンク)間の二重のバルクヘッドン工事及びその材料は、1枚の板で仕切る隔壁板に代替できるので、きわめて経済的なものとなる。すなわち、船体強度メンバーとしての二重のバルクヘッド板、その断熱工事などが不要とすることができる。
前記ロングタンクの前後に隔壁を有しないタンクを配置した、船長方向に連なるタンク群列を有し、ロングタンクと隣接するタンクとの間のそれぞれは、コファダム構造を有する請求項1記載のLNG船。
ロングタンクと隣接するタンクとの間のそれぞれは、コファダム(cofferdem)構造とする。ここに「コファダム構造」とは、バルクヘッド(隔壁)の相互間に空の空間(ボイド(void))スペースが形成される構造をいう。これにより火災発生時の熱やガスを遮断できる。
前記ロングタンクは、船の中央線方向を境とする左右にそれぞれ設けられている請求項1記載のLNG船。
幅広の船体に対して、その容積の利点を発揮できる。
前記ロングタンクの船長方向中央の液荷室の上部に、キー部を突出して一体的に設け、このキー部に対応する船の中央線方向前後に、熱変形移動止めチョックを船体構造材側に設けた請求項1記載のLNG船。
キー部に対して熱変形移動止めチョックを設けると、独立ロングタンクの船長方向の熱変形移動止を防止できる。
詳しくは、ロングタンクの船長方向中央の液荷室の上部を、前後方向のタンクの熱変形の中心点にするために、船幅方向に幅を持った熱変形移動止めチョックを船体側に設け、タンクの前後方向の移動を最小限にすると共に、この点を熱変形の中心とする。これにより、タンクとタンク接続のLNG管、タンクとタンク外の配管とのエキスパンションジョイントの接続部の応力を最小とすることができる。
前記ロングタンクは船長方向に2つの液荷室を有し、ほぼ船長方向中央上部に、キー部を突出して一体的に設け、このキー部に対応する船の中央線方向前後に、熱変形移動止めチョックを船体構造材側に設けた請求項1記載のLNG船。
請求項4と同様の作用効果を奏する。
前記ロングタンクの隔壁板の上部がロングタンクの天板と離隔しており、その離隔空間により隣接する液荷室相互が連通している請求項1記載のLNG船。
ロングタンクは、図3に示すように、隔壁板により独立の液荷室に隔離することができる。しかし、この場合には、各液荷室について、液面制御及びその液面調整操作が必要となるとともに、各液荷室に対応したタンクの蒸気ドームと上部ストッパーとの関係構造が複雑なままである。
これに対し、図9に示すように、天板と離隔した離隔空間により隣接する液荷室相互が連通していると、隣接する液荷室相互の圧力が均等となり、液面制御及びその液面調整操作を一つの液荷室と同様に取り扱うことができ、しかも、タンクの蒸気ドームと上部ストッパーとの関係構造が簡易となり、経済的でもある。
前記ロングタンクの隔壁板の下部がロングタンクの底板と離隔しており、その離隔空間により隣接する液荷室相互が連通している請求項1記載のLNG船。
図10に示すように、底板と離隔した離隔空間により隣接する液荷室相互が連通していると、隣接する液荷室相互の圧力が均等となり、請求項6の場合と同様な作用効果を奏する。
LNG船は、LNG運搬船、FLNG船、FSRU船、SRV船を含む請求項1記載のLNG船。
本発明の「LNG船」の用語は、LNG運搬船、FLNG船、FSRU船、SRV船などを含む広義で使用している。
運搬対象がLPGである請求項1記載のLPG船。
また、ロングタンク使用することで、従来、タンク間の2重バルクヘッド(隔壁)工事が必要であったのに対し、2重バルクヘッド(隔壁)工事が不要となり経済的なものとなる。
また、独立方形タンク30底面に、船体構造材35と一体となった受け台36,36…を設け、タンク30を、受け台36,36…上に設置したものである。
このロングタンク30は、船体構造(たとえば二重船殻構造)材34,35と一体化することなく(溶接構造は採らない)、船倉内に設置した構造であると、高価な材料は不要であり、経済的なものとなる。また、ロングタンク30の横断面は実質的に方形であるから、タンクの容積効率が球形タンクより大きい。
Claims (9)
- 実質的に方形の独立タンクを、船体構造材と一体化することなく、船倉内に設置した構造を有し、
前記タンクは、船幅方向より船長方向が長いロングタンクであり、船長方向に沿って船倉内に設置し、
前記ロングタンクは、船長方向に1枚の板で仕切る隔壁板によって船長方向に2以上の液荷室に分割されている、
ことを特徴とするLNG船。 - 前記ロングタンクの前後に隔壁を有しないタンクを配置した、船長方向に連なるタンク群列を有し、ロングタンクと隣接するタンクとの間のそれぞれは、コファダム構造を有する請求項1記載のLNG船。
- 前記ロングタンクは、船の中央線方向を境とする左右にそれぞれ設けられている請求項1記載のLNG船。
- 前記ロングタンクは船長方向に3つの液荷室を有し、船長方向中央液荷室の上部に、キー部を突出して一体的に設け、このキー部に対応する船の中央線方向前後に、熱変形移動止めチョックを船体構造材側に設けた請求項1記載のLNG船。
- 前記ロングタンクは船長方向に2つの液荷室を有し、ほぼ船長方向中央上部に、キー部を突出して一体的に設け、このキー部に対応する船の中央線方向前後に、熱変形移動止めチョックを船体構造材側に設けた請求項1記載のLNG船。
- 前記ロングタンクの隔壁板の上部がロングタンクの天板と離隔しており、その離隔空間により隣接する液荷室相互が連通している請求項1記載のLNG船。
- 前記ロングタンクの隔壁板の下部がロングタンクの底板と離隔しており、その離隔空間により隣接する液荷室相互が連通している請求項1記載のLNG船。
- LNG船は、LNG運搬船、FLNG船、FSRU船、SRV船を含む請求項1記載のLNG船。
- 運搬対象がLPGである請求項1記載のLPG船。
Priority Applications (11)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EA201591964A EA201591964A1 (ru) | 2013-04-12 | 2014-04-10 | Судно для спг или судно для снг |
SG11201508434RA SG11201508434RA (en) | 2013-04-12 | 2014-04-10 | Lng ship or lpg ship |
AU2014251665A AU2014251665B2 (en) | 2013-04-12 | 2014-04-10 | LNG ship or LPG ship |
CN201480020345.1A CN105121269B (zh) | 2013-04-12 | 2014-04-10 | Lng船或lpg船 |
ES14782078T ES2696276T3 (es) | 2013-04-12 | 2014-04-10 | Buque de transporte de GNL o buque de transporte de GLP |
KR1020157031087A KR20150141982A (ko) | 2013-04-12 | 2014-04-10 | Lng 선 또는 lpg 선 |
RU2015148142A RU2658192C2 (ru) | 2013-04-12 | 2014-04-10 | Судно для спг или снг |
CA2909291A CA2909291A1 (en) | 2013-04-12 | 2014-04-10 | Lng ship or lpg ship |
EP14782078.1A EP2985218B1 (en) | 2013-04-12 | 2014-04-10 | Lng carrier or lpg carrier |
US14/783,814 US20160031531A1 (en) | 2013-04-12 | 2014-04-10 | LNG Ship or LPG Ship |
CY181100960T CY1120699T1 (el) | 2013-04-12 | 2018-09-18 | Πλοιο μεταφορας lng ή πλοιο μεταφορας lpg |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2013083825 | 2013-04-12 | ||
JP2013-083825 | 2013-04-12 | ||
JP2014-080921 | 2014-04-10 | ||
JP2014080921A JP6496489B2 (ja) | 2013-04-12 | 2014-04-10 | Lng船またはlpg船 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2014168204A1 true WO2014168204A1 (ja) | 2014-10-16 |
Family
ID=51689608
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2014/060402 WO2014168204A1 (ja) | 2013-04-12 | 2014-04-10 | Lng船またはlpg船 |
Country Status (10)
Country | Link |
---|---|
US (1) | US20160031531A1 (ja) |
JP (1) | JP6496489B2 (ja) |
KR (1) | KR20150141982A (ja) |
CN (1) | CN105121269B (ja) |
AU (1) | AU2014251665B2 (ja) |
CA (1) | CA2909291A1 (ja) |
EA (1) | EA201591964A1 (ja) |
RU (1) | RU2658192C2 (ja) |
SG (1) | SG11201508434RA (ja) |
WO (1) | WO2014168204A1 (ja) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR102432771B1 (ko) * | 2015-12-23 | 2022-08-17 | 대우조선해양 주식회사 | 동력 생산 방법 및 시스템 |
JP6788020B2 (ja) | 2015-12-30 | 2020-11-18 | コリア シップビルディング アンド オフショア エンジニアリング カンパニー リミテッド | 液化ガス運搬船 |
JP6737431B2 (ja) * | 2016-10-11 | 2020-08-12 | 三井E&S造船株式会社 | 液化ガス運搬船 |
KR102196987B1 (ko) * | 2016-12-29 | 2020-12-30 | 현대중공업 주식회사 | 가스연료 추진 컨테이너 운반선 |
JP7088452B2 (ja) * | 2017-05-31 | 2022-06-21 | 三井E&S造船株式会社 | 洋上浮体構造物 |
JP7147117B2 (ja) * | 2018-04-27 | 2022-10-05 | 三井E&S造船株式会社 | 浮体式生産設備のユーティリティラインおよびその敷設方法 |
WO2020115805A1 (ja) * | 2018-12-03 | 2020-06-11 | 日揮グローバル株式会社 | 浮体設備 |
CN110712712A (zh) * | 2019-10-21 | 2020-01-21 | 上海船舶研究设计院(中国船舶工业集团公司第六0四研究院) | 能有效降低2~3万方液化气船成本的液货舱布置形式 |
CN111619756B (zh) * | 2020-04-17 | 2023-04-25 | 沪东中华造船(集团)有限公司 | 一种lng加注船建造中控制结构变形和精度的方法 |
CN114802591B (zh) * | 2022-04-15 | 2024-01-12 | 江南造船(集团)有限责任公司 | 一种液货舱布置方法和液化气船 |
KR20240131086A (ko) | 2023-02-23 | 2024-08-30 | 에이치디한국조선해양 주식회사 | 화물창 모듈 및 화물창 모듈이 구비된 모듈형 선박 |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2896416A (en) * | 1957-08-05 | 1959-07-28 | Constock Int Methane Ltd | Means for the transportation and storage of cold boiling liquefied hydrocarbon gas |
US3397662A (en) * | 1966-06-28 | 1968-08-20 | Mcmullen John J | Hatch arrangement for liquefied gas storage tanks |
JPS4976113A (ja) * | 1972-11-25 | 1974-07-23 | ||
JPS5618293U (ja) * | 1979-07-21 | 1981-02-18 | ||
JPH0635798U (ja) * | 1992-10-09 | 1994-05-13 | 川崎重工業株式会社 | Lpg船のlpgタンク構造 |
JPH06337100A (ja) * | 1993-05-28 | 1994-12-06 | Ishikawajima Harima Heavy Ind Co Ltd | 液化ガス輸送用タンクの支持構造 |
US5697312A (en) | 1995-05-12 | 1997-12-16 | Kvaerner Masa-Yards Oy | Gas tanker |
US7137345B2 (en) | 2004-01-09 | 2006-11-21 | Conocophillips Company | High volume liquid containment system for ships |
JP2013039866A (ja) * | 2011-08-12 | 2013-02-28 | Ihi Marine United Inc | タンク支持構造及び浮体構造物 |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3213632A (en) * | 1960-03-07 | 1965-10-26 | California Texas Oil Corp | Ship for transporting liquefied gases and other liquids |
US3305122A (en) * | 1964-09-04 | 1967-02-21 | Exxon Research Engineering Co | Keyed cargo container |
US3332386A (en) * | 1965-10-28 | 1967-07-25 | Technigaz | Tanker |
US3319431A (en) * | 1966-05-25 | 1967-05-16 | Exxon Research Engineering Co | Double walled cryogenic tank |
US3612333A (en) * | 1970-02-27 | 1971-10-12 | Exxon Research Engineering Co | Securement system using loose keys for independent storage tanks |
US5375547A (en) * | 1993-04-09 | 1994-12-27 | Ishikawajima-Harima Heavy Industries Co., Ltd. | Self-standing liquefied gas storage tank and liquefied gas carrier ship therefor |
EP0700349B1 (en) * | 1993-06-04 | 1997-03-12 | VAN DER LAAN, Markus | Tanker provided with swash type bulkheads |
AUPR462501A0 (en) | 2001-04-27 | 2001-05-24 | Maslen, Des | Radial engine |
JP2003252287A (ja) * | 2002-03-06 | 2003-09-10 | Mitsubishi Heavy Ind Ltd | 船体構造 |
JP5254354B2 (ja) * | 2007-12-04 | 2013-08-07 | 三星重工業株式会社 | Lngカーゴタンクのためのスロッシング抑制構造 |
-
2014
- 2014-04-10 JP JP2014080921A patent/JP6496489B2/ja active Active
- 2014-04-10 KR KR1020157031087A patent/KR20150141982A/ko not_active Application Discontinuation
- 2014-04-10 AU AU2014251665A patent/AU2014251665B2/en not_active Ceased
- 2014-04-10 CA CA2909291A patent/CA2909291A1/en not_active Abandoned
- 2014-04-10 CN CN201480020345.1A patent/CN105121269B/zh not_active Expired - Fee Related
- 2014-04-10 RU RU2015148142A patent/RU2658192C2/ru not_active IP Right Cessation
- 2014-04-10 WO PCT/JP2014/060402 patent/WO2014168204A1/ja active Application Filing
- 2014-04-10 US US14/783,814 patent/US20160031531A1/en not_active Abandoned
- 2014-04-10 SG SG11201508434RA patent/SG11201508434RA/en unknown
- 2014-04-10 EA EA201591964A patent/EA201591964A1/ru unknown
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2896416A (en) * | 1957-08-05 | 1959-07-28 | Constock Int Methane Ltd | Means for the transportation and storage of cold boiling liquefied hydrocarbon gas |
US3397662A (en) * | 1966-06-28 | 1968-08-20 | Mcmullen John J | Hatch arrangement for liquefied gas storage tanks |
JPS4976113A (ja) * | 1972-11-25 | 1974-07-23 | ||
JPS5618293U (ja) * | 1979-07-21 | 1981-02-18 | ||
JPH0635798U (ja) * | 1992-10-09 | 1994-05-13 | 川崎重工業株式会社 | Lpg船のlpgタンク構造 |
JPH06337100A (ja) * | 1993-05-28 | 1994-12-06 | Ishikawajima Harima Heavy Ind Co Ltd | 液化ガス輸送用タンクの支持構造 |
US5697312A (en) | 1995-05-12 | 1997-12-16 | Kvaerner Masa-Yards Oy | Gas tanker |
US7137345B2 (en) | 2004-01-09 | 2006-11-21 | Conocophillips Company | High volume liquid containment system for ships |
JP2013039866A (ja) * | 2011-08-12 | 2013-02-28 | Ihi Marine United Inc | タンク支持構造及び浮体構造物 |
Also Published As
Publication number | Publication date |
---|---|
CN105121269B (zh) | 2018-10-12 |
RU2015148142A (ru) | 2017-05-16 |
CN105121269A (zh) | 2015-12-02 |
AU2014251665A1 (en) | 2015-11-26 |
RU2658192C2 (ru) | 2018-06-19 |
KR20150141982A (ko) | 2015-12-21 |
SG11201508434RA (en) | 2015-11-27 |
AU2014251665B2 (en) | 2017-10-05 |
JP2014218238A (ja) | 2014-11-20 |
JP6496489B2 (ja) | 2019-04-03 |
EA201591964A1 (ru) | 2016-04-29 |
US20160031531A1 (en) | 2016-02-04 |
CA2909291A1 (en) | 2014-10-16 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP6496489B2 (ja) | Lng船またはlpg船 | |
US9415841B2 (en) | LNG ship | |
KR20090130267A (ko) | 액화 천연 가스 운반선 및 액화 천연 가스의 해상 운송 방법 | |
KR101560475B1 (ko) | 개방형 격벽을 이용한 컨테이너선의 가스 연료용 연료탱크 최적배치 방법 및 이를 적용한 선박 | |
KR100961867B1 (ko) | 가스연료용 연료탱크를 가지는 부유식 구조물 | |
WO2015002262A1 (ja) | 長大海上浮体設備 | |
JP2013508202A (ja) | ガス燃料用燃料タンクを備えた浮遊式構造物 | |
WO2014168124A1 (ja) | Lng船 | |
KR20210116956A (ko) | 선박용 액화 화물 저장탱크 | |
JP2019523731A (ja) | 複数の流体運搬用貯蔵タンクを具備した船舶 | |
KR20210116957A (ko) | 선박용 액화 화물 저장탱크 | |
KR101125103B1 (ko) | 액화가스 저장탱크의 연결장치 및 상기 연결장치를 갖춘 부유식 해상 구조물 | |
KR20100127470A (ko) | 저장탱크의 다열 배치 구조를 가지는 부유식 구조물 | |
KR200473638Y1 (ko) | 독립형 저장탱크 구조물 | |
WO2010028240A2 (en) | Vaulted liquid containment system for ships | |
EP2985218B1 (en) | Lng carrier or lpg carrier | |
KR20190026443A (ko) | Lng 선박의 밸러스트 탱크 배치 구조 | |
KR20210098802A (ko) | 해양 구조물의 액화가스 저장탱크 | |
KR20220049391A (ko) | 해양 구조물 | |
KR20120058485A (ko) | 저장탱크의 다열 배치 구조를 가지는 부유식 구조물 | |
KR20110047685A (ko) | 가스연료용 연료탱크를 가지는 부유식 구조물 | |
KR20100125874A (ko) | 저장탱크의 다열 배치 구조를 가지는 부유식 구조물 | |
KR20110128163A (ko) | 액화가스 저장탱크의 연결장치 및 상기 연결장치를 갖춘 부유식 해상 구조물 | |
KR20110140022A (ko) | 중앙 밸러스트 탱크를 갖는 해양 구조물 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 14782078 Country of ref document: EP Kind code of ref document: A1 |
|
ENP | Entry into the national phase |
Ref document number: 2909291 Country of ref document: CA |
|
WWE | Wipo information: entry into national phase |
Ref document number: 14783814 Country of ref document: US |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
ENP | Entry into the national phase |
Ref document number: 20157031087 Country of ref document: KR Kind code of ref document: A |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2014782078 Country of ref document: EP |
|
ENP | Entry into the national phase |
Ref document number: 2015148142 Country of ref document: RU Kind code of ref document: A |
|
WWE | Wipo information: entry into national phase |
Ref document number: 201591964 Country of ref document: EA |
|
ENP | Entry into the national phase |
Ref document number: 2014251665 Country of ref document: AU Date of ref document: 20140410 Kind code of ref document: A |