JP2009236286A - Flexible tube laying device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a flexible tube laying device feeding a flexible tube to be used when a tanker is loaded with a fluid, especially a low temperature fluid, from a facility floating on the sea, and preventing twist and damage of the flexible tube. <P>SOLUTION: A flexible tube 11 having flexibility is wound around each of a plurality of drums 13. Winding diameters of the flexible tubes 11 in the plurality of drums 13 are different from each other. The plurality of drums 13 have a common rotary shaft 15, and are rotated around the rotary shaft 15. The flexible tube 11 is fed onto the sea by a feeding device 19. A guide 17 controls an angle of incidence of the flexible tube 11 relative to the water. A feeding speed of each of the flexible tubes 11 is different in each drum 13. The plurality of drums 13 are separately controlled. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a flexible pipe laying apparatus used when a fluid such as liquefied natural gas having a very low temperature is transported from a floating facility installed on the sea to a tanker or the like.

  Conventionally, in order to load oil etc. into a tanker for transportation from an offshore floating facility (base) that stores oil calculated from an oil field etc. on the seabed, the floating facility and the tanker are made of a flexible floating type made of resin. The pipes are connected to transport oil and the like.

  FIG. 10 is a view showing a conventional resin flexible pipe laying device 40 used for transporting petroleum or the like. The laying device 40 is provided with a plurality of drums 41 a, 41 b, 41 c on an offshore floating facility 47. Flexible tubes 43a, 43b, and 43c are wound around the drums 41a, 41b, and 41c, respectively. The drums 43a, 43b, and 43c rotate around the rotation shafts 45a, 45b, and 45c, and the flexible tubes 43a, 43b, and 43c are sent to the sea by a feeding device that is not shown. When the flexible tubes 43a, 43b, and 43c are sent to the tanker where loading is performed, the flexible tubes 43a, 43b, and 43c are connected to the tanker, and oil or the like is loaded from the offshore floating facility to the tanker.

On the other hand, natural gas calculated from a gas field on the ground or in the near sea is liquefied and stored at the base. When loading liquefied natural gas (hereinafter “LNG”) into a tanker for transportation, an articulated loading arm provided at a coastal base is used. As the LNG receiving base, for example, there are an LNG receiving base and an LNG shipping base system described in Patent Document 1 adopting a loading arm system (Patent Document 1).
JP-A-5-65718

  However, although the loading arm system as in Patent Document 1 can be loaded from the ground base into the tanker, the LNG is loaded into the tanker from a floating facility that produces and stores LNG installed in the gas field in the open sea. In this case, there is a problem that the loading arm cannot follow the movement between the facility and the tanker that are greatly shaken by waves or the like, and the equipment is increased in size.

  In addition, in the conventional laying device 40, since it is necessary to operate a plurality of flexible tubes for each drum with a limited work time, for example, most of the stern of the offshore floating body facility 3 is occupied and offshore all at once. There is a problem of securing the drum installation location and a problem that the drum interval is too close.

  In addition, as in the conventional method of transporting petroleum, the method of loading a fluid into a tanker using a resin-made floating flexible tube 43 is difficult to cope with a cryogenic fluid such as LNG. is there. This is because LNG has an extremely low temperature of about -160 ° C, so the conventional flexible floating tube made of resin is fragile at such an extremely low temperature, and sufficient flexibility cannot be obtained. This is because it is necessary to use a metal pipe, and a flexible pipe having both durability and heat insulation is required.

  In addition, when such a flexible tube having both high durability and high heat insulation is adopted, it is necessary to consider fatigue, and the allowable bending radius is larger than that of a conventional flexible tube. There is a problem that the pipe laying apparatus is enlarged. Further, since the fed flexible tubes 43a, 43b, and 43c are fed to the sea at the same speed and in the same direction at the same time, the fed flexible tubes are entangled with each other or the tips of the flexible tubes 43a, 43b, and 43c. There is a problem that the flexible tubes may collide with each other and the flexible tube may be damaged.

  The present invention has been made in view of such a problem, and it is possible to send out a flexible tube used when a fluid, particularly a low-temperature fluid, is loaded from a floating facility at sea to a tanker. An object of the present invention is to provide a flexible pipe laying device capable of preventing entanglement and damage.

  In order to achieve the above-described object, the first invention is a flexible pipe laying device for transporting fluids, which is provided in an offshore floating facility, and is provided on a concentric shaft, and a plurality of flexible pipe winding diameters are different. A plurality of flexible tubes wound around the plurality of drums, a guide roller for determining a feeding direction of the flexible tubes when the flexible tubes are fed from the facility, and the plurality of flexible tubes, respectively. Flexible pipe feeding means for feeding to the sea, and an angle formed by an outer edge of the offshore floating body facility or a straight line in contact with the outer edge and the feeding direction of the flexible pipe is wound around the plurality of drums. The flexible tube laying apparatus is different in each flexible tube, and further, a delivery speed of the flexible tube from the facility by the delivery means is different for each of the plurality of flexible tubes.

  The plurality of drums are turntables stacked in a plurality of stages, and it is desirable that the winding diameter of the flexible tube decreases as the turntable goes from the lower turntable to the upper turntable.

  The plurality of drums may be capable of rotating independently of each other. The fluid may be liquefied natural gas. Further, in the plurality of flexible tubes sent out simultaneously from the facility, the plurality of flexible tubes may be sent out without contacting each other.

  According to the first invention, since the flexible tube is wound around the plurality of drums provided on the concentric shaft, the space for installing the drum can be reduced. Since they are stacked on the steps, the laying apparatus can be further reduced in size. In particular, when the fluid to be transported is a cryogenic fluid such as LNG, a metal is used for the flexible tube and a reinforcing layer or a heat insulating layer is provided, so that the allowable bending radius is increased, but the equipment is downsized. Therefore, a larger bending radius can be ensured.

  In addition, since the flexible tube is wound around a plurality of drums having different winding diameters, when the flexible tube is sent out to the sea, the feeding speed of the flexible tube is different for each drum. It is possible to prevent bumps and entanglement between the flexible tubes.

  Further, if the feeding direction of the flexible pipes is different for each drum, it is possible to further prevent the flexible pipes sent to the sea from colliding with each other and damaging each other or tangling the flexible pipes.

  If a plurality of drums can rotate independently of each other, the rotation of only the drum that has finished feeding the flexible tube first is stopped, and the flexible tube is connected to the fluid supply unit. In addition, it is possible to rotate other drums, and the number of work steps can be reduced.

  A second invention is a flexible pipe laying device for fluid transportation provided in a marine facility, wherein the plurality of drums are provided on concentric shafts and have different winding diameters of the flexible pipe, and the plurality of drums. A plurality of flexible tubes wound around, a guide roller for determining a feeding direction of the flexible tubes when the flexible tubes are sent out from the facility, and a flexible tube feeding means for feeding the plurality of flexible tubes to the sea respectively. And the delivery speed of the flexible tube from the facility by the delivery means and the delivery direction of the flexible tube by the guide roller are the plurality of flexible tubes wound around the plurality of drums. Each of the plurality of drums can be controlled to rotate and stop independently, and in order to prevent contact between the plurality of flexible tubes when the plurality of flexible tubes are laid, Rotating multiple drums A laying device for flexible tube, characterized in that it is possible to pre-stop control.

  According to the second invention, since the flexible tubes are wound around the plurality of drums provided on the concentric shafts, the installation space of the drums can be reduced, and the flexible tubes fed from each drum are Because the feed speed and feed direction are different, it is possible to suppress contact between the flexible tubes at sea. Further, when the flexible tubes are likely to collide with each other at sea, each drum is controlled individually. Thus, the rotational speed control and the stop control are possible, so that it is possible to obtain a flexible tube laying device that can more reliably prevent the contact between the flexible tubes.

  According to the present invention, it is possible to send out a flexible tube used when loading a fluid, particularly a low-temperature fluid, from a floating facility at sea to a tanker, and it is possible to prevent entanglement and damage of the flexible tube. A flexible pipe laying device can be provided.

  Hereinafter, the laying apparatus 1 concerning embodiment of this invention is demonstrated. FIG. 1 is a diagram showing a laying device 1.

  The laying device 1 is provided on the offshore floating facility 3. The offshore floating facility 3 is a storage base that is provided especially on the open sea and liquefies and stores natural gas calculated from the seabed gas field.

  The laying device 1 mainly includes a drum 13 (13a, 13b, 13c), a flexible tube 11 (11a, 11b, 11c), a feeding device 19 (19a, 19b, 19c), a guide 17 (17a, 17b, 17c), and the like. Consists of

  The flexible tube 11 having flexibility is wound around each of the drums 13a, 13b, and 13c. Details of the flexible tube 11 will be described later. The drums 13a, 13b, and 13c have different winding diameters of the flexible tube 11, respectively. The drums 13 a, 13 b, and 13 c share the rotation shaft 15 and can rotate around the rotation shaft 15.

  Joints 21a, 21b, and 21c are provided at the distal ends of the flexible tubes 11a, 11b, and 11c, respectively. The joints 21a, 21b, and 21c are for connection to a receiving portion provided on the tanker side.

  A feeding device 19 (19a, 19b, 19c) is provided for each of the flexible tubes 11a, 11b, 11c. The feeding device 19 is a device for feeding the flexible tube 11 to the sea. The feeding device 19 is, for example, a pair of belt-like endless tracks, and the flexible tube 11 can be sent to the sea by sandwiching the flexible tube 11 between the pair of endless tracks and operating the endless track. The feeding device 19 is not limited to an endless track, and may be a feeding roller or the like.

  A guide 17 (17a, 17b, 17c) is provided for each of the flexible tubes 11a, 11b, 11c. The guide 17 is a device for limiting the delivery direction when the flexible tube 11 is delivered to the sea. The guide 17 is composed of, for example, a plurality of guide rollers, and the flexible tube 11 passes between the plurality of guide rollers, and the flexible tube 11 is sent out in the direction in which the guide rollers are arranged. If the feeding direction is sufficiently controlled by the feeding device 19, the guide 17 is unnecessary. However, when the length of the fed flexible tube is increased, the distance between the distal end portion of the flexible tube and the feeding device is increased, and it becomes difficult to control the feeding direction only by the feeding device, and the guide 17 is necessary.

  A supply unit 7 is provided in the vicinity of the drum 13. The supply unit 7 is a part for supplying LNG and the like stored in the offshore floating facility 3 to the outside. A joint (not shown) is also provided on the side of the flexible tube 11 opposite to the side on which the joint 21 is provided, and the joint is connected to the supply unit 7.

  The laying device 1 feeds the flexible tube 11 in the direction determined by the guide 17 by the feeding device 19. The feeding speed of the flexible tubes 11a, 11b, 11c by the feeding devices 19a, 19b, 19c and the rotational speed of the drum 13 are synchronized. Since each of the drums 13a, 13b, and 13c has a different winding diameter of the flexible tube 11, when the drums 13a, 13b, and 13c rotate at the same angular speed around the rotation shaft 15, the feeding speed of the flexible tube 11 varies depending on each drum. .

  For example, if the winding diameters of the flexible tubes 11 of the drums 13a, 13b, and 13c are 25 m, 20 m, and 15 m, respectively, and all the drums rotate 1/10 per minute, the flexible tubes 11a, 11b, and 11c The feed speeds are about 7.85 m / min, 6.28 m / min, and 4.71 m / min, respectively. Accordingly, the feeding devices 19a, 19b, and 19c feed the flexible tube 11 at a speed that matches the feeding speed of each flexible tube.

  Next, the flexible tube 11 will be described. The flexible tube 11 is a pipe having flexibility, and in order to transport a normal temperature fluid such as petroleum, a resin tube conventionally used may be used, but in order to transport a cryogenic fluid such as LNG. Are required to have high heat insulation and durability.

  FIG. 2 is a diagram illustrating the configuration of the flexible tube 11. A metal corrugated tube 25 is provided in the innermost part through which the fluid flows. The corrugated tube 25 allows the flexible tube 11 to withstand the internal pressure of the fluid flowing inside.

  Normally, 100,000 to 150,000 ton class tankers are used in consideration of fluid transportation efficiency. In addition, since the weather varies greatly on the sea, it is desirable that the operation of loading a fluid into a tanker or the like is usually completed within 24 hours. Therefore, considering the loading efficiency, about 2 to 3 flexible tubes 11 having a diameter of about 400 mm are used. However, the diameter of the flexible tube 11 is preferably larger in order to increase the fluid transport efficiency, but the allowable bending radius of the flexible tube 11 is increased, and the laying device of the flexible tube 11 is increased in size. The diameter and number of the flexible tubes 11 are appropriately determined according to usage conditions and the like.

  The corrugated tube 25 is flexible and can be bent freely as long as it has a predetermined bending radius or more. Here, the predetermined bending radius is an allowable bending radius of the flexible tube 11 and refers to a bending curvature that does not cause collapse of the tube due to plastic deformation of the flexible tube 11. Usually, the allowable bending radius of the flexible tube 11 is about 10 times the diameter of the flexible tube 11, and is preferably set to about 15 times the diameter of the flexible tube 11.

  For example, the flexible tube 11 having an inner diameter of about 400 mm and an outer diameter of about 500 mm can be used. In this case, the allowable bending radius is set to 5 m, and preferably about 7.5 m. Therefore, the winding diameter of the flexible tube 11 of the drum 13 described above needs to be at least the allowable bending radius.

  A floor layer 27 is provided on the outer layer of the corrugated tube 25. The floor layer 27 is a layer for flattening irregularities on the outer periphery of the corrugated tube 25, and is, for example, a nonwoven fabric layer. A reinforcement layer 29 is provided on the outer layer of the floor layer 27. The reinforcing layer 29 suppresses deformation of the flexible tube 11 in the axial direction. The reinforcing layer 29 is, for example, a fiber woven tape or a metal tape, and is alternately wound in the axial direction of the flexible tube 11.

  A heat insulating layer 31 is provided on the outer layer of the reinforcing layer 29. The heat insulating layer 31 insulates the cryogenic fluid flowing inside the corrugated tube 25 from the outside, prevents a temperature drop of the outer layer of the flexible tube 11 and prevents heat from the outside from being transferred to the fluid. For example, a nonwoven fabric is used for the heat insulating layer 31. A waterproof layer 33 is provided on the outer layer of the heat insulating layer 31. The waterproof layer 33 is made of resin and follows the deformation of the flexible tube 11 and prevents seawater and the like from entering the flexible tube 11. The waterproof layer 33 is less affected by the temperature of the cryogenic fluid due to the heat insulating layer 31. Therefore, the waterproof layer 33 does not become brittle.

  According to the flexible tube 11, a cryogenic fluid can be transported, and the flexible tube 11 can follow relative position fluctuations caused by waves between the offshore floating body facility 3 and the tanker, so that it can follow. No space is required for storage on the offshore floating facility 3. In addition, the structure of the flexible tube 11 is not restricted to the structure of FIG. It can be changed according to the characteristics and operating conditions of the fluid to be handled.

  Next, the drum 13 will be described. FIG. 3 is a perspective view showing the drums 13a, 13b, and 13c. The drums 13a, 13b, and 13c are turntables that rotate in a substantially horizontal direction around a rotation shaft 15 provided in a substantially vertical direction (perpendicular to the offshore floating facility 3). Further, the drum 13a provided at the lowermost portion has the largest winding diameter of the flexible tube 11, and the winding diameter of the flexible tube 11 decreases as it goes upward, that is, as it goes to the drums 13b and 13c. . As described above, the diameter of the drum 13c having the smallest winding diameter is equal to or larger than the allowable winding radius of the flexible tube 11 to be wound.

  The drums 13a, 13b, and 13c are installed coaxially, and all of them may rotate at the same time, or can be rotated individually. When all the drums 13 rotate at the same time, only one operating means, brake, and the like, which are not shown in the figure, are used for rotationally driving and controlling the drums 13. However, preferably, it is usually a structure that can be rotated individually. This is because when the flexible tubes come into contact with each other or entangle with each other in the middle of laying, the rotational speeds of the drums 13a, 13b, and 13c are individually switched or brakes are individually applied to This is because the feeding can be stopped and the contact between the flexible tubes can be avoided.

  On the other hand, when each is driven and controlled individually, it is necessary to provide an operation means, a brake and the like not shown for each drum. Note that the operation of each drum 13 in the laying operation of the flexible tube 11 can be switched between the interlocking state and the individual operation state. For example, if the drums 13 are connected to each other by gears or clutches, the drums 13 are all interlocked, but can be driven by their respective operation means by releasing the gears or clutches.

  Next, the laying operation of the flexible tube 11 by the laying device 1 will be described. 4 and 5 are diagrams showing a state in which the flexible tube 11 has started to be sent out by the laying device 1. 5 to 9, illustration of the feeding device 19 and the guide 17 is omitted.

  First, as shown in FIG. 4, the flexible tubes 11a, 11b, and 11c wound around the drums 13a, 13b, and 13c are fed to the sea through the guides 17a, 17b, and 17c using the feeding devices 19a, 19b, and 19c. To send. The guides 17a, 17b, and 17c define the delivery direction of the flexible tube 11, but the delivery angle α, which is the angle formed between the outer edge 35 of the offshore floating facility 3 or a straight line that contacts the outer edge 35 and the delivery direction of the flexible tube 11. β and γ are different from each other. In FIG. 4, the feed angle α of the flexible tube 11a is relatively large, and the feed angle γ of the flexible tube 11c is small. That is, as shown in FIG. 4, it is desirable that the feed angle is in a relationship of α> β> γ.

  Moreover, as shown in FIG. 5, the speed at which the flexible tube 11 is sent out differs. That is, if all the drums 13a, 13b, 13c rotate at the same angular speed, the feeding speed (arrow A in the figure) of the flexible tube 11a wound around the larger drum 13a is the fastest, and then the flexible tube 11b ( The delivery speed decreases in the order of arrow B) and flexible tube 11c (arrow C in the figure).

  Each flexible tube 11 is transported on the sea toward the receiving unit 9 of the tanker 5 by, for example, a small ship traveling on the sea. At this time, the flexible pipes 11a, 11b, and 11c have different water entry angles 35 and different feeding speeds, so there is no interference or entanglement between the flexible pipes 11 and the small ships that are transported are also sufficient. Can keep the distance.

  When the flexible tube 11 continues to be fed and the flexible tube 11a is fed to the vicinity of the receiving portion 9 of the tanker 5 as shown in FIG. 6 (that is, almost all the flexible tube 11a wound around the drum 13a is sent out). The rotation of the drum 13a is stopped, and the feeding of the flexible tube 11 is stopped.

  Next, as shown in FIG. 7, the joint 21a of the flexible tube 11a is connected to the receiving part 9 (arrow D). At the same time, the other end of the flexible tube 11a is moved to the supply unit 7 (in the direction of arrow E) to connect the supply unit 7 to the joint provided at the end of the flexible tube 11 (not shown). (Arrow F direction). As described above, the offshore floating facility 3 and the tanker 5 are connected by the flexible tube 11a.

  Note that the drums 13b and 13c excluding the drum 13a can be individually operated during the connection work of the flexible tube 11a. In other words, the flexible tube 11a can be connected and the flexible tubes 11b and 11c can be sent to the tanker 5 at the same time.

  Next, as shown in FIG. 8, the flexible tubes 11 b and 11 c are sent out toward the tanker 5 in the same procedure. When the flexible tube 11b is sent out to the vicinity of the receiving unit 9, the joint 21b is connected to the receiving unit 9 (in the direction of arrow G in the figure). In the same procedure, the flexible tube 11c is sent in the direction of the receiving unit 9 (in the direction of arrow H in the figure), and the receiving unit 9 and the joint 21c are connected.

  FIG. 9 is a diagram illustrating a state in which all of the flexible tubes 11a, 11b, and 11c are connected to the receiving unit 7 and the supplying unit 7, respectively. In this state, a fluid such as LNG is sent from the supply unit 7 to the receiving unit 9 of the tanker 5. After the transportation of the fluid to the tanker 5 is completed, the flexible tube 11 is wound around the drum 13 by the reverse operation, and the fluid loading operation is completed.

  Thus, according to the laying device 1 according to the present embodiment, the flexible tubes 11 (11a, 11b, 11c) are wound around the drums 13 (13a, 13b, 13c) that share the rotating shaft 15, respectively. The installation space for the drum 13 can be reduced. Moreover, since the drum 13 is a turntable, the height of the laying device 1 can be reduced. For this reason, the flexible tube 11 can be efficiently accommodated on the offshore floating body facility 3.

  In particular, when the fluid to be transported is a cryogenic fluid such as LNG, a metal corrugated tube 25 is used for the flexible tube 11 and the allowable bending radius is relatively large. However, the laying device 1 includes a plurality of drums 13. Since the apparatus is provided on the same axis and is stacked in a plurality of stages, the apparatus is small. Therefore, a larger bending radius can be ensured, and the life of the flexible tube 11 is long.

  In addition, since the flexible tube 11 is wound around a plurality of drums 13 having different winding diameters, when the flexible tube 11 is sent to the sea, the feeding speed of the flexible tube 11 is different for each drum 13. For this reason, it is possible to prevent the end portions of the flexible tubes 11 from coming into contact with each other during the operation of feeding out the flexible tubes 11, or tangling the flexible tubes 11 together.

  In addition, since the water inlet angle 35 formed by the feeding direction of the flexible tube 11 and the floating facility is different for each drum 13 (flexible tube 11), the flexible tubes 11 sent to the sea collide with each other and are damaged. Or, it is possible to further prevent the flexible tubes 11 from being entangled with each other.

  In addition, since the plurality of drums 13 can rotate independently from each other, the rotation of only the drum 13a that has finished feeding the flexible tube 11a first is stopped, and the flexible tube 11a is connected to the fluid supply unit 7. It is possible to rotate the other drums 13b and 13c during the operation, and the connection work and the feed work of the flexible tube 11 can be performed at the same time, so that the number of laying steps can be reduced. .

  As mentioned above, although embodiment of this invention was described referring an accompanying drawing, the technical scope of this invention is not influenced by embodiment mentioned above. It is obvious for those skilled in the art that various modifications or modifications can be conceived within the scope of the technical idea described in the claims, and these are naturally within the technical scope of the present invention. It is understood that it belongs.

  For example, the drums 13a, 13b, and 13c have three stages, but are not limited to three stages. The number of drums 13 can be appropriately changed as necessary. The drum 13 is not limited to a turntable. It is also possible to provide the rotating shaft 15 of the drum 13 in a substantially horizontal direction. Moreover, the delivery direction of the flexible tube 11 does not need to be the direction described in the embodiment, and may be the delivery direction that is the side of the offshore floating facility 3, the rear, or a combination thereof.

The figure which shows the structure of the laying apparatus. The perspective view which shows the structure of the flexible tube 11. FIG. The perspective view which shows drum 13a, 13b, 13c. The figure which shows the water entrance angle 35 which the offshore floating body facility 3 and the delivery direction of the flexible tube 11 make. The figure which shows the state by which the flexible tube 11 was sent out by the laying apparatus 1. FIG. The figure which shows the state which the flexible tube 11a reached | attained the receiving part 9. FIG. The figure which shows the state in which the flexible tube 11a was connected to the receiving part 9 and the supply part 7. FIG. The figure which shows the state from which the flexible tubes 11b and 11c were further sent out. The figure which shows the state by which flexible tube 11a, 11b, 11c was connected to the supply part 7 and the receiving part 9. FIG. The figure which shows the laying apparatus 40 by the conventional drum 41a, 41b, 41c.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ......... Laying apparatus 3 ... Offshore floating body facility 5 ......... Tanker 7 ......... Supply part 9 ...... Receiving part 11a, 11b, 11c ......... Flexible tube 13a, 13b, 13c ......... Drum 15 ... Rotating shafts 17a, 17b, 17c ......... Guides 19a, 19b, 19c ......... Feeding devices 21a, 21b, 21c ......... Feeding devices 25 ......... Corrugated tube 27 ......... Floor bed layer 29 ... ...... Reinforcing layer 31 ...... Insulating layer 33 ...... Waterproof layer 35 ...... Outer edge 40 ............ Laying devices 41 a, 41 b, 41 c ............ Drums 43 a, 43 b, 43 c ............ Flexible tubes 45 a, 45 b , 45c ……… Rotating shaft 47 ………… Offshore floating facilities

Claims (6)

A flexible pipe laying device for fluid transportation provided in an offshore floating facility,
A plurality of drums provided on concentric shafts and having different winding diameters of the flexible tube;
A plurality of flexible tubes wound around the plurality of drums;
A guide roller for determining the feeding direction of the flexible tube when the flexible tube is sent out from the facility, and a flexible tube feeding means for feeding the plurality of flexible tubes to the sea respectively.
Comprising
The feeding direction of the flexible tube is different for each of the plurality of flexible tubes wound around the plurality of drums,
Further, the flexible pipe laying apparatus is characterized in that the delivery speed of the flexible pipe from the facility by the delivery means is different for each of the plurality of flexible pipes.   2. The flexible drum according to claim 1, wherein the plurality of drums are turntables stacked in a plurality of stages, and the winding diameter of the flexible tube decreases as the turntable goes from the lower turntable to the upper turntable. Flexible pipe laying device.   The flexible pipe laying device according to claim 1, wherein the plurality of drums can rotate independently of each other.   The flexible pipe laying device according to any one of claims 1 to 3, wherein the fluid is liquefied natural gas.   The laying of the flexible tube according to any one of claims 1 to 4, wherein the plurality of flexible tubes are simultaneously fed from the facility without contacting each other. apparatus. A flexible pipe laying device for fluid transportation provided in a marine facility,
A plurality of drums provided on concentric shafts and having different winding diameters of the flexible tube;
A plurality of flexible tubes wound around the plurality of drums;
A guide roller for determining the feeding direction of the flexible tube when the flexible tube is sent out from the facility, and a flexible tube feeding means for feeding the plurality of flexible tubes to the sea respectively.
Comprising
The delivery speed of the flexible tube from the facility by the delivery means and the delivery direction of the flexible tube by the guide roller differ for each of the plurality of flexible tubes wound around the plurality of drums,
The plurality of drums can be independently rotated and stopped,
In laying the plurality of flexible tubes, the plurality of drums can be rotated and stopped in order to prevent contact between the plurality of flexible tubes. apparatus.

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