WO2025220149A1 - Floating structure - Google Patents

Abstract

This floating structure includes a floating body, a liquefied gas tank mounted in the floating body, and at least one loading station disposed on the floating body. Each of the at least one loading station has a plurality of manifolds connected to the liquefied gas tank via piping, and each of the plurality of manifolds has a joint connected to liquefied gas transfer equipment of an external storage facility. In at least one loading station, the joint includes a first joint and a second joint different in type from the first joint.

Description

Floating structures

This disclosure relates to a floating structure equipped with a liquefied gas tank.

Floating structures have been known in the past, in which liquefied gas tanks containing liquefied gas are mounted on floats that float on water. An example of such a floating structure is a liquefied gas carrier that transports liquefied gas such as LNG or LPG. In order to transfer liquefied gas between the floating structure and an external facility equipped with a storage tank (hereinafter referred to as the external storage facility), the floating structure is equipped with a transfer pipe extending from the liquefied gas tank and a manifold, which is a connector for connecting the transfer pipe to the transfer equipment of the external storage facility (hereinafter referred to as the external transfer equipment). Here, the external storage facility is, for example, a land-based base, an offshore base, a ship, etc.

In external storage facilities, the locations of the connection ports for external transfer equipment are not necessarily standardized. Therefore, Patent Document 1 proposes that, in a floating structure equipped with multiple cargo tanks for storing liquefied gas, manifolds that can connect piping to the onshore or offshore loading and unloading equipment be placed at one, several, or all of the front and rear of the cargo tanks of the floating structure in order to improve compatibility with onshore and offshore loading and unloading equipment.

Patent No. 6067804

When a floating structure equipped with a liquefied gas tank transfers liquefied gas to multiple external storage facilities, the specifications of the piping, such as the number of pipes, pipe diameter, and joints, of the transfer equipment of these multiple external storage facilities are not necessarily uniform. It is also conceivable that a single external storage facility may be equipped with multiple transfer equipment with different specifications.

This disclosure has been made in consideration of the above circumstances, and its purpose is to propose a floating structure equipped with a liquefied gas tank that is equipped with a manifold that can accommodate variations in the specifications of the transfer equipment to which the liquefied gas is transferred.

In order to solve the above problems, a floating structure according to one aspect of the present disclosure includes:
Floating body and
a liquefied gas tank mounted on the floating body;
at least one loading station disposed on the floating body;
Each of the at least one loading station has a plurality of manifolds connected to the liquefied gas tank via piping, and each of the plurality of manifolds has a coupling for connection to a liquefied gas transfer facility of an external storage facility;
The joints in the at least one loading station include a first joint and a second joint of a different type from the first joint.

Moreover, a floating structure according to another aspect of the present disclosure includes:
Floating body and
a liquefied gas tank mounted on the floating body;
a plurality of loading stations distributed over the floating body;
The plurality of loading stations include two loading stations each having a different number of tubes in the plurality of manifolds.

Moreover, a floating structure according to another aspect of the present disclosure includes:
Floating body and
a liquefied gas tank mounted on the floating body;
a plurality of loading stations distributed over the floating body;
The plurality of loading stations include two loading stations in which the pipe diameters of the plurality of manifolds are different from each other.

According to the present disclosure, a floating structure equipped with a liquefied gas tank can be equipped with a manifold that can accommodate variations in the specifications of the transfer equipment to which the liquefied gas is transferred.

FIG. 1 is a plan view of a floating structure according to an embodiment of the present disclosure. FIG. 2 is a side view of the floating structure shown in FIG. FIG. 3 is a plan view of the loading station.

Embodiments of the present disclosure will be described with reference to the drawings. Fig. 1 is a schematic plan view of a floating structure 1 according to one embodiment of the present disclosure, and Fig. 2 is a schematic side view of the floating structure 1 shown in Fig. 1. As shown in Figs. 1 and 2, the floating structure 1 according to this embodiment is a liquefied gas carrier having a plurality of liquefied gas tanks 3 containing liquefied gas cargo mounted on its hull. However, the floating structure 1 to which the present disclosure is applied is not limited to liquefied gas carriers, and may be a liquefied gas fueled ship equipped with liquefied gas tanks 3 for fuel, a floating production storage and offloading unit (FPSO), a floating storage and regasification unit (FSRU), a floating production and offloading unit (FPO), a floating storage and offloading unit (FSO), etc.

Floating Body 11
The floating structure 1 includes a float 11 that floats on water. In this embodiment, the hull corresponds to the float 11. Hereinafter, the longitudinal direction of the float 11 (the left-right direction on the paper in Figures 1 and 2) will be referred to as the "fore-aft direction," and the direction perpendicular to the fore-aft direction of the float 11 will be referred to as the "left-right direction." An accommodation area 12 having rooms for crew members and the like is disposed at the rear of the float 11 in the fore-aft direction. In addition, an engine room 13 that houses a main engine is disposed below the accommodation area 12. However, the arrangement of the accommodation area 12 and the engine room 13 is not limited to the above. For example, the accommodation area 12 may be disposed at the front of the float 11 in the fore-aft direction. In addition, the floating structure 1 does not necessarily have to have the accommodation area 12 and the engine room 13. An upper deck 14 exposed to the outside is provided at the center and front of the float 11 in the fore-aft direction.

Liquefied gas tank 3
The floating structure 1 includes a plurality of liquefied gas tanks 3 arranged in the longitudinal direction in the central portion of the longitudinal direction of the float 11. The floating structure 1 according to this embodiment includes four liquefied gas tanks 3, but the number of liquefied gas tanks 3 is not limited to the above and may be one or more.

The liquefied gas tank 3 is spherical or ellipsoidal, and the upper portion of the liquefied gas tank 3 protrudes above the upper deck 14. Note that the shape and arrangement of the liquefied gas tank 3 are not limited to those described above. For example, the liquefied gas tank 3 may be a rectangular tank.

The liquefied gas tank 3 is capable of storing liquefied gas. The liquefied gas tank 3 in this embodiment stores liquefied hydrogen. However, the liquefied gas stored in the liquefied gas tank 3 may be a liquefied gas other than liquefied hydrogen, such as liquefied natural gas (LNG), liquefied petroleum gas (LPG), ammonia, or methanol.

《Transfer equipment》
1 to 3 , the floating structure 1 is provided with transfer equipment for transferring liquefied gas from the liquefied gas tank 3 to the external storage facility 5 or from the external storage facility 5 to the liquefied gas tank 3. The external storage facility 5 is a facility capable of storing liquefied gas outside the floating structure 1, and is, for example, a land-based base, an offshore base, or a ship. The external storage facility 5 is provided with an external storage tank 56 for storing liquefied gas, and external transfer equipment 55 for connecting the manifold 8 of the floating structure 1 to the external storage tank 56. The external transfer equipment 55 is provided with piping connected to the external storage tank 56 of, for example, a loading arm, an unloading arm, or the like, and a connection port for connection to the manifold 8 is provided at the end of the piping.

The liquefied gas stored in the liquefied gas tank 3 and the vaporized gas of this liquefied gas can be removed from the tank through a transfer pipe 51 connected to the liquefied gas tank 3. The transfer pipe 51 may branch into multiple pipes along the way, or multiple pipes may be connected and combined into a single transfer pipe 51. The transfer pipe 51 includes a liquid transfer pipe and a gas transfer pipe. The liquid transfer pipe is composed of pipes etc. that connect the inside of the liquefied gas tank 3 to the manifold 8. Liquefied gas flows through the liquid transfer pipe, being supplied from the external storage facility 5 to the liquefied gas tank 3 or being sent from the liquefied gas tank 3 to the external storage facility 5. The gas transfer pipe is composed of pipes etc. that connect the gas phase portion of the liquefied gas tank 3 to the manifold 8. The gas transfer pipe sends a portion of the vaporized gas of the liquefied gas produced in the liquefied gas tank 3 to the manifold 8. The gas transfer pipe may also be used to discharge gas from the liquefied gas tank 3 for cooling or purging the liquefied gas tank 3.

The manifold 8 is a connection point with the external transfer equipment 55. The manifold 8 is arranged in a loading station 80 installed on the float 11. The floating structure 1 has loading stations 80 at multiple locations dispersed on the float 11. However, it is sufficient for the floating structure 1 to have at least one loading station 80. The loading stations 80 are arranged in multiple locations dispersed on the upper deck 14 of the float 11. The loading stations 80 on the upper deck 14 are arranged between the longitudinal centers of the liquefied gas tanks 3 lined up in the longitudinal direction, at the left and right ends of the upper deck 14. One or more of the multiple loading stations 80 on the upper deck 14 may be arranged between the liquefied gas tanks 3 and the accommodation space 12. In other words, the loading stations 80 are arranged in the empty space between the liquefied gas tanks 3 lined up in the longitudinal direction on the upper deck 14. Furthermore, the loading stations 80 may be arranged on top of a tank cover that protrudes above the upper deck 14. In the floating structure 1 according to this embodiment, loading stations 80 are provided in three locations on the upper deck 14, but the number of loading stations 80 is not limited to the above. For example, in a floating structure 1 equipped with four liquefied gas tanks 3, there are potential locations for loading stations 80 in 10 or more locations on the left and right sides of the float 11.

The floating structure 1 also has loading stations 80 arranged at one or more locations on the sides 11R, 11L of the float 11. When multiple loading stations 80 are arranged on the sides 11R, 11L of the float 11, the multiple loading stations 80 are arranged dispersedly in the fore-and-aft direction on the right side 11R or left side 11L of the float 11, or are arranged dispersedly on the right side 11R and left side 11L. The loading stations 80 arranged on the sides 11R, 11L of the float 11 are located above the waterline of the float 11 and below the upper deck 14. The loading stations 80 arranged on the sides 11R, 11L of the float 11 may be recessed into the outer plating of the float 11.

Each loading station 80 is equipped with multiple manifolds 8. The connection ports of the multiple manifolds 8 are provided with fittings 82 for connecting to the piping of the external transfer equipment 55. Here, the multiple manifolds 8 arranged in one loading station 80 are referred to as a "manifold group 81." The relationship between the multiple loading stations 80 satisfies at least one of the following (a)-(c).

(a) The multiple loading stations 80 include a loading station 80 equipped with a first manifold group having a first fitting, and a loading station 80 equipped with a second manifold group having a second fitting. The fittings 82 of the manifolds 8 belonging to the first manifold group are of different types from the fittings 82 of the manifolds 8 belonging to the second manifold group. The multiple loading stations 80 may include one or more loading stations 80 equipped with both a manifold having a first fitting and a manifold having a second fitting. The fittings 82 are divided into mating type and insertion type based on the joining method.

An example of a mating joint is a flange joint. When a flange joint is used, flanges are provided at both the connection port of the manifold 8 and the connection port of the external transfer facility 55. The connection port of the manifold 8 and the connection port of the external storage facility 5 are connected by mating these flanges and fastening them with bolts and nuts. The flanges may also be fastened with clamps.

Further examples of plug-in joints include bayonet joints and coupling joints. Coupling joints generally consist of a combination of a socket and a plug. For example, a socket is provided on one of the connection ports of the manifold 8 and the external storage facility 5, and a plug is provided on the other. By inserting the plug into the socket, the connection port of the manifold 8 and the connection port of the external transfer facility 55 are connected.

For example, if the manifolds 8 of the first manifold group have flange joints, the manifolds 8 of the second manifold group have bayonet joints. Also, if the manifolds 8 of the first manifold group have coupling joints, the manifolds 8 of the second manifold group have bayonet joints. In this way, by providing the floating structure 1 with multiple types of joints, it is possible to select the manifold group 81 to be used depending on the type of joints of the transfer equipment 55 of the external storage facility 5.

The first manifold group is arranged in one or more of the multiple loading stations 80 provided on the float 11, and the second manifold group is arranged in one or more of the remaining multiple loading stations 80 provided on the float 11. The first manifold group and the second manifold group may be arranged on the same left-right side of the float 11, or may be arranged separately on the left and right sides. Alternatively, one of the first manifold group and the second manifold group may be provided in a loading station 80 arranged on the upper deck 14, and the other may be provided in a loading station 80 arranged on the side surfaces 11R, 11L of the float 11.

(b) The multiple loading stations 80 include a pair of loading stations 80, each pair consisting of a loading station 80 with a third manifold group and a loading station 80 with a fourth manifold group, each pair having a different number of tubes in the manifolds 8. That is, the number of tubes in the manifolds 8 belonging to the third manifold group is different from the number of tubes in the manifolds 8 belonging to the fourth manifold group. For example, the third manifold group is primarily for connecting to piping in a land-based base, and the fourth manifold group is primarily for connecting to piping in an offshore base. As a non-limiting numerical example, the pipe diameters of the third manifold group and the manifolds 8 in the fourth manifold group are the same, but the number of manifolds 8 in the third manifold group is five and the number of manifolds 8 in the fourth manifold group is three. In this case, the spacing between the manifolds 8 in the fourth manifold group may be wider than the spacing between the manifolds 8 in the third manifold group.

The third manifold group is arranged in one or more of the multiple loading stations 80 provided on the float 11, and the fourth manifold group is arranged in one or more of the remaining multiple loading stations 80 provided on the float 11. The third manifold group and the fourth manifold group may be arranged on the same left-right side of the float 11, or may be arranged separately on the left and right sides. Furthermore, one of the third manifold group and the fourth manifold group may be provided in a loading station 80 arranged on the upper deck 14, and the other may be provided in a loading station 80 arranged on one of the sides 11R, 11L of the float 11. The third manifold group may be any one of the first manifold group and the second manifold group described above, and the fourth manifold group may be any one of the first manifold group and the second manifold group described above.

(c) The multiple loading stations 80 include a pair of loading stations 80, one having a fifth manifold group and the other having a sixth manifold group, in which the pipe diameters of the manifolds 8 are different from each other. That is, the pipe diameter of the connection port of the manifolds 8 belonging to the fifth manifold group is different from the pipe diameter of the connection port of the manifolds 8 belonging to the sixth manifold group. Note that, when one manifold group 81 includes manifolds 8 with different pipe diameters, the average pipe diameters of the manifolds 8 belonging to the manifold group 81 may be compared. For example, the fifth manifold group is primarily used for cargo handling, and the sixth manifold group is primarily used for bunkering. That is, the sixth manifold group is used when the floating structure 1 functions as a bunkering vessel and supplies liquefied gas as fuel to other ships, etc. Generally, the liquid transfer rate during cargo handling is greater than the liquid transfer rate during bunkering. Therefore, the pipe diameter of the cargo handling piping is larger than the pipe diameter of the fuel supply piping. To give a non-limiting numerical example, if the pipe diameter of the loading pipe connection port is 400A (outer diameter 406.4mm), the pipe diameter of the fuel supply pipe connection port is 100A (outer diameter 114.3mm). In order to accommodate the transfer of liquid to multiple external storage facilities 5 with such different pipe diameters, the pipe diameter of the connection port of the fifth manifold group is larger than the pipe diameter of the connection port of the sixth manifold group.

The fifth manifold group is arranged in one or more of the multiple loading stations 80 provided on the float 11, and the sixth manifold group is arranged in one or more of the remaining multiple loading stations 80 provided on the float 11. The fifth manifold group and the sixth manifold group may be arranged on the same left-right side of the float 11, or may be arranged separately on the left and right sides. Furthermore, one of the fifth manifold group and the sixth manifold group may be provided in a loading station 80 arranged on the upper deck 14, and the other may be provided in a loading station 80 arranged on the side surfaces 11R, 11L of the float 11. The fifth manifold group may be any one of the first to fourth manifold groups described above, and the sixth manifold group may be any one of the first to fourth manifold groups described above.

In (a) above, the first manifold group having the first fittings and the second manifold group having the second fittings are arranged in different loading stations 80, but the manifold groups in one loading station 80 may each have different types of fittings, i.e., manifolds provided with first fittings and manifolds provided with second fittings.

Placement of Ladder 20
The floating structure 1 includes at least one ladder 20 arranged on each of the right side 11R and the left side 11L of the floating body 11. The ladder 20 may be a pilot ladder, a side ladder, an accommodation ladder, or the like, and may also include lifting devices for these ladders.

When the external transfer equipment 55 approaches the loading station 80, if a ladder 20 is present between the external transfer equipment 55 and the loading station 80, there is a risk of interference between the external transfer equipment 55 and the ladder 20. Therefore, the ladder 20 is positioned to avoid the loading station 80 on the upper deck 14. In detail, the multiple loading stations 80 include a right loading station 80 positioned along the right side 11R on the upper deck 14 and a left loading station 80 positioned along the left side 11L on the upper deck 14, with the ladder 20 positioned on the right side 11R being positioned to avoid the right loading station 80, and the ladder 20 positioned on the left side 11L being positioned to avoid the left loading station 80. This makes it possible to avoid interference between the external transfer equipment 55 and the ladder 20.

Generally, ladders on ships are arranged symmetrically on both the port and starboard sides across the centerline. In contrast, in the floating structure 1 according to this embodiment, the ladder 20 arranged on the right side 11R of the float 11 and the ladder 20 arranged on the left side 11L are arranged asymmetrically across the centerline extending in the fore-and-aft direction. In other words, one of the ladders 20 arranged on the right side 11R and the ladder 20 arranged on the left side 11L is arranged further forward in the fore-and-aft direction than the other. It is preferable that at least one loading station 80 is arranged between the ladder 20 arranged on the right side 11R and the ladder 20 arranged on the left side 11L in the fore-and-aft direction of the float 11. However, to allow quick access from the accommodation space 12 of the float 11, it is desirable that the ladder 20 be arranged close to the accommodation space 12 in the fore-and-aft direction of the float 11.

For mooring purposes, it is preferable to locate the loading station 80 in an area with a wide vertical section of the outer plating in the center of the fore-and-aft direction of the float 11. On the other hand, although the ladders 20, including the side ladders and pilot ladder, are not used during loading and unloading, it is preferable to install the ladders 20 in a location where there is a vertical section of the outer plating of the float 11, taking into consideration the need for a pilot to board the ship. Therefore, by installing the ladders 20 in accordance with the location of the loading station 80, it is possible to arrange both the loading station 80 equipped with the manifold 8 and the ladders 20.

[Summary]
The floating structure 1 according to the first item of the present disclosure is
A floating body 11;
a liquefied gas tank 3 mounted on the floating body 11;
At least one loading station 80 arranged on the floating body 11;
Each of the at least one loading station 80 has a plurality of manifolds 8 connected to the liquefied gas tank 3 via piping, and each of the plurality of manifolds 8 has a joint 82 connected to a liquefied gas transfer facility 55 of the external storage facility 5;
The couplings 82 in the at least one loading station 80 include a first coupling and a second coupling of a different type from the first coupling.

As described above, by providing the floating structure 1 with multiple types of joints 82, it is possible to select the manifold 8 to be used depending on the specifications (particularly the type of joint 82) of the transfer equipment 55 of the external storage facility 5 to which the liquefied gas is to be transferred. Therefore, it is possible to provide a floating structure 1 equipped with a liquefied gas tank 3 that is equipped with a manifold 8 that can accommodate variations in the specifications of the transfer equipment 55 to which the liquefied gas is to be transferred.

The floating structure 1 according to the second item of the present disclosure is the floating structure 1 according to the first item, wherein at least one loading station 80 includes a first loading station equipped with a plurality of manifolds 8 having first joints, and a second loading station equipped with a plurality of manifolds 8 having second joints.

With the floating structure 1 configured as described above, the loading station 80 can be selected depending on the specifications (particularly the type of joint 82) of the transfer equipment 55 of the external storage facility 5 to which the liquefied gas is to be transferred.

The floating structure 1 according to the third item of the present disclosure is the floating structure 1 according to the first item, wherein at least one loading station 80 includes one loading station equipped with both a first joint and a second joint.

With the floating structure 1 configured as described above, the joints 82 can be selected according to the specifications (particularly the type of joint 82) of the transfer equipment 55 of the external storage facility 5 to which the liquefied gas is to be transferred.

The floating structure 1 according to the fourth item of the present disclosure is a floating structure 1 according to any one of the first to third items, wherein the at least one loading station 80 includes one or more loading stations 80 arranged on the upper deck 14 of the float 11 and one or more loading stations 80 arranged on the sides 11R, 11L of the float 11.

With the floating structure 1 configured as described above, it is possible to selectively use the loading station 80 located on the upper deck 14 of the float 11 and the loading stations 80 located on the sides 11R and 11L of the float 11 depending on the specifications of the transfer equipment 55 of the external storage facility 5 to which the liquefied gas is being transferred.

The floating structure 1 according to the fifth item of the present disclosure is a floating structure 1 according to any one of the first to fourth items, in which at least one loading station 80 includes two loading stations 80 in which the number of tubes in the multiple manifolds 8 differs from each other.

With the floating structure 1 configured as described above, the loading station 80 can be selected depending on the specifications (particularly the number of pipes) of the transfer equipment 55 of the external storage facility 5 to which the liquefied gas is to be transferred.

The floating structure 1 according to the sixth item of the present disclosure is a floating structure 1 according to any one of the first to fifth items, wherein at least one loading station 80 includes two loading stations 80 in which the pipe diameters of the multiple manifolds 8 are different from each other.

With the floating structure 1 configured as described above, the loading station 80 can be selected according to the specifications (particularly the pipe diameter) of the transfer equipment 55 of the external storage facility 5 to which the liquefied gas is to be transferred. For example, by arranging a small-diameter manifold 8 for transferring liquid from a small bunkering vessel in addition to a large-diameter manifold 8 for loading and unloading with the base, the efficiency of transferring liquid to and from the small bunkering vessel can be improved. Also, for example, by having a small-diameter manifold 8 for bunkering on a large floating structure 1, the floating structure 1 can also be used as a bunkering vessel, making it possible to accommodate a variety of operating methods for the floating structure 1.

The floating structure 1 according to the seventh item of the present disclosure is the floating structure 1 according to any one of the first to sixth items, further comprising an upper deck 14 arranged on the upper surface of the float 11, a first ladder 20 arranged on the first side 11R of the float 11, and a second ladder 20 arranged on the second side 11L,
At least one loading station 80 includes a first loading station arranged on the upper deck 14 along the first side 11R and a second loading station arranged on the upper deck 14 along the second side 11L, the first ladder 20 being arranged to avoid the side of the first loading station, the second ladder 20 being arranged to avoid the side of the second loading station, and the first ladder 20 and the second ladder 20 being arranged asymmetrically across the center line of the first side 11R and the second side 11L in a plan view.

With the floating structure 1 configured as described above, interference between the external transfer equipment 55 and the ladder 20 can be avoided when the external transfer equipment 55 approaches the loading station 80.

The floating structure 1 according to the eighth item of the present disclosure is
A floating body 11;
a liquefied gas tank 3 mounted on the floating body 11;
a plurality of loading stations 80 distributed over the floating body 11;
The plurality of loading stations 80 includes two loading stations each having a different number of tubes in the plurality of manifolds 8 .

With the floating structure 1 configured as described above, the loading station 80 can be selected depending on the specifications (particularly the number of pipes) of the transfer equipment 55 of the external storage facility 5 to which the liquefied gas is to be transferred.

The floating structure 1 according to the ninth item of the present disclosure is
A floating body 11;
a liquefied gas tank 3 mounted on the floating body 11;
a plurality of loading stations 80 distributed over the floating body 11;
The plurality of loading stations 80 includes two loading stations in which the pipe diameters of the plurality of manifolds 8 are different from each other.

With the floating structure 1 configured as described above, the loading station 80 can be selected according to the specifications (particularly the pipe diameter) of the transfer equipment 55 of the external storage facility 5 to which the liquefied gas is to be transferred. For example, by arranging a small-diameter manifold 8 for transferring liquid from a small bunkering vessel in addition to a large-diameter manifold 8 for loading and unloading with the base, the efficiency of transferring liquid to and from the small bunkering vessel can be improved. Also, for example, by having a small-diameter manifold 8 for bunkering on a large floating structure 1, the floating structure 1 can also be used as a bunkering vessel, making it possible to accommodate a variety of operating methods for the floating structure 1.

The foregoing has been presented for purposes of illustration and description, and is not intended to limit the disclosure to the form or forms disclosed herein. For example, in the foregoing detailed description, various features of the disclosure are grouped together in a single embodiment for the purpose of streamlining the disclosure, but some of the features may also be combined. Furthermore, multiple features included in the disclosure may be combined into alternative embodiments, configurations, or aspects other than those discussed above.

1: Floating structure 3: Liquefied gas tank 5: External storage facility 8: Manifold 11: Floating body 14: Upper deck 18: Upper deck 20: Ladder 50: Transfer equipment 55: External transfer equipment 80: Loading station 81: Manifold group 82: Joint

Claims (9)

Floating body and
a liquefied gas tank mounted on the floating body;
at least one loading station disposed on the floating body;
Each of the at least one loading station has a plurality of manifolds connected to the liquefied gas tank via piping, and each of the plurality of manifolds has a coupling for connection to a liquefied gas transfer facility of an external storage facility;
the couplings at the at least one loading station include a first coupling and a second coupling of a different type from the first coupling;
Floating structures. the at least one loading station includes a first loading station having the plurality of manifolds with the first fittings, and a second loading station having the plurality of manifolds with the second fittings;
The floating structure according to claim 1. the at least one loading station includes one loading station having both the first joint and the second joint;
The floating structure according to claim 1. The at least one loading station includes one or more loading stations arranged on an upper deck of the float and one or more loading stations arranged on a side of the float.
A floating structure according to any one of claims 1 to 3. the at least one loading station includes two loading stations having different numbers of tubes in the plurality of manifolds;
A floating structure according to any one of claims 1 to 3. the at least one loading station includes two loading stations in which the pipe diameters of the plurality of manifolds are different from each other;
A floating structure according to any one of claims 1 to 3. an upper deck disposed on the upper surface of the floating body;
a first ladder disposed on a first side of the floating body and a second ladder disposed on a second side of the floating body;
the at least one loading station includes a first loading station disposed on the upper deck along the first side, and a second loading station disposed on the upper deck along the second side,
the first ladder is positioned to avoid a side of the first loading station, and the second ladder is positioned to avoid a side of the second loading station;
The first ladder and the second ladder are arranged asymmetrically with respect to a center line between the first side surface and the second side surface in a plan view.
A floating structure according to any one of claims 1 to 3. Floating body and
a liquefied gas tank mounted on the floating body;
a plurality of loading stations distributed over the floating body;
the plurality of loading stations include two loading stations having different numbers of tubes in the plurality of manifolds;
Floating structures. Floating body and
a liquefied gas tank mounted on the floating body;
a plurality of loading stations distributed over the floating body;
the plurality of loading stations include two loading stations in which the pipe diameters of the plurality of manifolds are different from each other;
Floating structures.