Cargo handling system for ship

Abstract

To provide a cargo handling system for ship which can perform cargo handling of a plurality of objects and which is highly convenient.SOLUTION: A cargo handling system for ship includes: a first cargo handling device mounted on a frame, constituted so as to move with the frame, and for performing cargo handling of a first object at a first cargo handling position; a second cargo handling device constituted so as to move on a rail, and for performing cargo handling of a second object at a second cargo handling position; and at least one control device for controlling the positions of these cargo handling devices. The control device controls the positions of the first cargo handling device and the second cargo handling device in such a manner that, in the case of performing cargo handling of the first object, the first cargo handling device is in the first cargo handling position and the second cargo handling device is in a first retreat position which does not physically interfere with the first cargo handling device in the first cargo handling position, and controls the positions of the first cargo handling device and the second cargo handling device in such a manner that, in the case of performing cargo handling of the second object, the second cargo handling device is in the second cargo handling position and the first cargo handling device is in a second retreat position which does not physically interfere with the second cargo handling device in the second cargo handling position.SELECTED DRAWING: Figure 5

Description

[Technical Field]

[0001] The present invention relates to a ship loading / unloading system used for loading / unloading a ship. [Background technology]

[0002] A loading arm is a loading device used to load and unload fluids from ships and the like. The loading arm is composed of, for example, a base riser, an inboard arm that also serves as a pipe, an outboard arm, and a swivel joint that connects the arms, and can efficiently load and unload crude oil, natural gas, liquefied ammonia, and the like. For example, Patent Document 1 discloses a loading arm used to load and unload fluids such as liquefied natural gas and petroleum between a ship and land or a pier at a port. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Publication No. 2020-132201 Summary of the Invention [Problem to be solved by the invention]

[0004] For example, when a coal transport ship docks at a berth, there are existing loading and unloading facilities such as a pier used for loading and unloading coal at the berth. In the existing loading and unloading facilities, for example, an unloader arm that moves horizontally on rails laid in the berth rotates to reach the entire deck of the ship and perform loading and unloading.

[0005] In recent years, with a view to achieving carbon neutrality, there has been a shift away from fossil fuels to fuels such as hydrogen and ammonia, which do not emit CO2 when burned. For example, when a liquefied ammonia transport ship docks at a berth or jetty with the above-mentioned loading and unloading facilities, it is necessary to install loading and unloading facilities for the liquefied ammonia, but the space available for installing new facilities is limited. In some cases, the construction of additional berths or jetties is not acceptable due to factors such as the impact on the environment. There is a demand for loading and unloading facilities that can be installed reliably in limited spaces.

[0006] SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide a highly convenient cargo handling system for a ship that is capable of handling multiple objects. [Means for solving the problem]

[0007] The ship cargo handling system according to an embodiment of the present invention includes: a first loading device attached to the platform and movable together with the platform, and capable of loading a first object at a first loading position; a second loading device configured to be movable on a rail and capable of loading a second object at a second loading position; a first drive source that supplies power to the first cargo handling device; a second drive source that supplies power to the second cargo handling device; at least one control device that controls the positions of the first loading device and the second loading device; The control device When loading a first object, controlling the positions of the first loading device and the second loading device so that the first loading device is at the first loading position and the second loading device is at a first retracted position that does not physically interfere with the first loading device at the first loading position; When loading a second object, the positions of the first loading device and the second loading device are controlled so that the second loading device is at the second loading position and the first loading device is at a second retracted position that does not physically interfere with the second loading device at the second loading position. The present invention provides a cargo handling system for a ship characterized by the above features. [Effects of the Invention]

[0008] According to the present invention, it is possible to provide a highly convenient cargo handling system for a ship that is capable of handling multiple objects. [Brief explanation of the drawings]

[0009] [Figure 1] FIG. 1 is a block diagram showing an example of the configuration of a ship cargo handling system according to an embodiment of the present invention. [Figure 2] FIG. 2 is a diagram schematically illustrating an example of the configuration of the first cargo handling device. [Figure 3] FIG. 3 is a diagram schematically illustrating an example of the configuration of the first loading and unloading device. [Figure 4] FIG. 4 is a diagram schematically illustrating an example of the configuration of the first cargo handling device. [Figure 5] FIG. 5 is a diagram schematically showing an example of cargo handling by the first cargo handling device. [Figure 6] FIG. 6 is a diagram showing an example of control during loading and unloading by the first loading and unloading device. [Figure 7] FIG. 7 is a diagram for explaining the positions of the first and second loading devices in control during loading by the first loading device. [Figure 8] FIG. 8 is a diagram schematically showing an example of cargo handling by the second cargo handling device. [Figure 9] FIG. 9 is a diagram showing an example of control during loading and unloading by the second loading and unloading device. [Figure 10] FIG. 10 is a diagram for explaining the positions of the first and second loading / unloading apparatuses in control during loading / unloading by the second loading / unloading apparatus. [Figure 11] FIG. 11 is a diagram schematically showing another example of cargo handling by the first cargo handling apparatus. [Figure 12] FIG. 12 is a diagram schematically showing another example of cargo handling by the second cargo handling apparatus. [Figure 13] FIG. 13 is a diagram schematically showing another example of cargo handling by the second cargo handling apparatus. [Figure 14]FIG. 14 is a diagram showing another example of control during loading and unloading by the second loading and unloading device. DETAILED DESCRIPTION OF THE INVENTION

[0010] The present invention relates to a ship loading / unloading system, a method for loading / unloading a ship ...

[0011] 1 is a block diagram showing an example of the configuration of a ship loading / unloading system 1 according to an embodiment of the present invention. The ship loading / unloading system 1 includes a first loading / unloading apparatus 10, a second loading / unloading apparatus 20, a first driving source 30, a second driving source 40, and at least one control device 50 that controls the first loading / unloading apparatus 10 and the second loading / unloading apparatus 20.

[0012] 2 to 4 are diagrams schematically showing an example of the configuration of the first cargo handling device 10. In FIG. The first cargo handling device 10 is attached to and fixed to a platform 11. The platform 11 has a base at a predetermined height, and the first cargo handling device 10 is placed on this base. The height of the base of the platform 11 can be set as appropriate. A first running part 12 such as a wheel is provided at the bottom of the platform 11. The platform 11 is placed on a berth, and can move on the berth by the first running part 12. The first cargo handling device 10 can move on the berth together with the platform 11.

[0013] The first loading device 10 is capable of loading and unloading a first object at a first loading position A1 (see FIG. 5 or FIG. 11). The first object may be an object different from a second object described below. The first loading device 10 may be a fluid loading device, and the first object may be a fluid. The fluid may be, for example, hydrogen or ammonia, and is preferably a non-fossil fuel that does not produce CO2 when burned.

[0014] The first loading device 10 has a loading arm 13 detachably connected to the piping on the ship 4, and a jumper arm 14 coupled to the loading arm 13 and detachably connected to the shore piping 2. The first loading device 10 can have one or more loading arms 13 and corresponding jumper arms 14. The loading arm 13 has a predetermined range of motion and may be a general type that is connected to the piping on the ship or the like to perform loading and unloading. The shore piping 2 is a fixed piping extending to the berth and connected to a receiving storage tank (not shown). The piping 2 is fixed, for example, to the center of the berth. The first loading position A1 is a position where the jumper arm 14 can be connected to the fixed piping 2. In other words, the jumper arm 14 is, for example, a multi-joint movable pipe joint and can be connected to the fixed piping 2 at the first loading position A1 where the first loading device 10 loads and unloads the first object. The jumper arm 14 may be installed on the land pipe 2 side and connected to the loading arm 13 installed on the platform 11.

[0015] The second cargo handling device 20 is equipped with a second running part 21 such as wheels, and is movable on rails 3 laid on the berth. The rails 3 are laid horizontally on the berth so as to be approximately parallel to the berthed ship, for example (see FIGS. 5, 8, 11 to 13). The second cargo handling device 20 is capable of handling a second object at a second cargo handling position A2 (see FIGS. 8 or 12 and 13). The second cargo handling device 20 may be a bulk cargo handling device, and the second object may be bulk coal or other such object. The second cargo handling device 20 may be an existing facility such as a pier, and is equipped with an unloader 23 having an arm 22 that can swing within a predetermined movable range, for example. The second cargo handling device 20 may have one or more unloaders 23.

[0016] The first driving source 30 is connected to the first cargo handling apparatus 10 and supplies power to the first cargo handling apparatus 10. The second driving source 40 is connected to the second cargo handling apparatus 30 and supplies power to the second cargo handling apparatus 20. The first driving source 30 and the second driving source 40 may be, for example, sources that supply electricity via laid cables or sources that supply power via an internal combustion engine or the like.

[0017] As shown in Figures 2 to 4, the platform 11 to which the first cargo handling apparatus 10 is attached can move on the rails 3 on which the second cargo handling apparatus 20 also travels, by means of the first running section 12. In other words, both the first cargo handling apparatus 10 and the second cargo handling apparatus 20 can travel on the rails 3, and can share the rails 3. Alternatively, the platform 11 may move along a predetermined movement path on the berth separately from the rails 3.

[0018] The operation of the entire vessel cargo handling system 1 is controlled by at least one control device 50. The at least one control device 50 controls the movement of the first cargo handling apparatus 10 and the second cargo handling apparatus 20 and can control the positions of the first cargo handling apparatus 10 and the second cargo handling apparatus 20, for example, in the horizontal direction (approximately parallel to the berthed vessel). For example, the control devices 50 may include a first control device directed to the first cargo handling apparatus 10 and a second control device directed to the second cargo handling apparatus 20. The control device 50 may be a general control device including an input unit that accepts input, a calculation unit that performs calculation processing based on the input from the input unit, a control unit that controls the calculation unit, a memory unit that stores control programs and various data, and an output unit that outputs the results of the calculation processing. The control device 50 may be configured to move together with the first cargo handling apparatus 10 and / or the second cargo handling apparatus 20, or may be configured to be located in a control room and connected to the movable first cargo handling apparatus 10 and / or the second cargo handling apparatus 20 via a cable or the like, as shown in FIG. 4.

[0019] In this embodiment, the second loading position A2 where the second loading apparatus 20 performs loading and unloading has a predetermined range, and the range of the second loading position A2 includes the first loading position A1 where the first loading apparatus 10 performs loading and unloading. In particular, the first loading position A1 of the first loading apparatus 10 is determined by the position of the fixed piping 2 on land, and therefore the first loading position A1 cannot be easily changed. Furthermore, the second loading position A2 of the second loading apparatus 20 cannot be easily changed if the second loading apparatus 20 is an existing facility such as a pier. Therefore, the loading apparatuses 10 and 20 are moved as follows so that the first loading position A1 and the second loading position A2 can coexist without changing the first loading position A1 and the second loading position A2.

[0020] An example of control of the ship cargo handling system 1 according to this embodiment when cargo is handled by the first cargo handling apparatus 10 will be described with reference to Figures 5 to 7. In this example, two second cargo handling apparatuses 20 and one first cargo handling apparatus 10 are arranged in this order in a straight line and move on the same rail 3.

[0021] For example, when liquefied ammonia is received as a first object from a liquefied ammonia transport ship 4, the positions of the first loading apparatus 10 and the second loading apparatus 20 are controlled so that the first loading apparatus 10 is at the first loading position A1 and the second loading apparatus 20 is at the second retracted position B2 that does not physically interfere with the first loading apparatus 10 at the first loading position A1. The second retracted position B2 is, for example, a position where the unloader 23 of the second loading apparatus 20 in a stationary state does not physically interfere with the loading arm 13 of the first loading apparatus 10 at the first loading position A1 at least in the horizontal direction, and is, for example, a position where the unloader 23 (including the arm 22) of the second loading apparatus 20 does not physically interfere with the movable range C1 of the loading arm 13 of the first loading apparatus 10 at the first loading position A1. In other words, the second retraction position B2 may be a position where the stationary unloader 23 is not physically included in the movable range C1 of the loading arm 13 at the first loading position A1. While FIG. 5 shows the movable range C1 of the loading arm 13 in a planar view, the movable range C1 is a three-dimensional range. That is, considering not only the horizontal direction but also the vertical direction, the second retraction position B2 of the second loading device 20 can be set to a predetermined range so that the stationary unloader 23 is not physically included in the movable range C1. As shown in FIGS. 5 and 7, the two second loading devices 20 can be retracted to the second retraction position B2, which is located on one side of the first loading position A1 of the first loading device 10 but on the other side than the first retraction position B1. When in the second retraction position B2, the second loading device 20 is not driven and does not perform loading. The first loading device 10 is connected to the onshore piping 2 by the jumper arm 14 at the first loading position A1. The first loading device 10 loads a first object at the first loading position A1.

[0022] As shown in FIG. 6, the control device 50 moves the second loading apparatus 20 to the second retracted position B2 (step S11). For example, the control device 50 determines whether the second loading apparatus 20 is in the second retracted position B2, and if it determines that the second loading apparatus 20 is not in the second retracted position B2, it can move the second loading apparatus 20 to the second retracted position B2. With the second loading apparatus 20 positioned in the second retracted position B2, the control device 50 moves the first loading apparatus 10 to the first loading position A1 (step S12). Here, the second retracted position B2 is not on the movement path of the first loading apparatus 10 to the first loading position A1. For example, as shown in FIGS. 5 and 7, the second retracted position B2 is located on one end of the linear rail 3, and the movement path of the first loading apparatus 10 from the first retracted position B1 to the first loading position A1 does not include the second retracted position B2. By moving the second cargo handling apparatus 20 to the second retracted position B2 first, the first cargo handling apparatus 10 can move smoothly to the first cargo handling position A1 without the second cargo handling apparatus 20 blocking its movement path.

[0023] Next, an example of control of the marine vessel cargo handling system 1 according to this embodiment when cargo handling is performed by the second cargo handling apparatus 20 will be described with reference to FIGS. For example, when coal is received as the second object from a coal transport ship 5, the positions of the first loading apparatus 10 and the second loading apparatus 20 are controlled so that the second loading apparatus 20 is at the second loading position A2 and the first loading apparatus 10 is at the first retracted position B1 where it does not physically interfere with the second loading apparatus 20 at the second loading position A2. The first retracted position B1 may be, for example, a position where the loading arm 13 of the first loading apparatus 10 in a stationary state does not physically interfere with the unloader 23 of the second loading apparatus 20 at the second loading position A2, at least in the horizontal direction, and may be, for example, a position where the loading arm 13 of the first loading apparatus 10 does not physically interfere with the movable range C2 of the unloader 23 (including the arm 22) of the second loading apparatus 20 at the second loading position A2. In other words, the first retracted position B1 is a position where the stationary loading arm 13 is not physically included in the movable range C2 of the unloader 23 at the second loading position A2. While FIG. 8 shows the movable range C2 of the unloader 23 in a planar view, the movable range C2 is a three-dimensional range. That is, considering not only the horizontal direction but also the vertical direction, the first retracted position B1 of the first loading device 10 can be set to a predetermined range so that the stationary loading arm 13 is not physically included in the movable range C2. As shown in FIGS. 8 and 10 , the first loading device 10 can be retracted to the first retracted position B1, which is located on one side of the second loading positions A2 of the two second loading devices 20 but on the other side than the second retracted position B2. When in the first retracted position B1, the first loading device 10 is not driven and does not perform loading operations. The second loading device 20 performs loading operations of the second object at the second loading position A2.

[0024] As shown in FIG. 9, the control device 50 moves the first loading apparatus 10 to the first retracted position B1 (step S21). For example, the control device 50 determines whether the first loading apparatus 10 is in the first retracted position B1, and if it determines that the first loading apparatus 10 is not in the first retracted position B1, it can move the first loading apparatus 10 to the first retracted position B1. With the first loading apparatus 10 positioned in the first retracted position B1, the control device 50 moves the second loading apparatus 20 to the second loading position A2 (step S22). Here, the first retracted position B1 is not on the movement path of the second loading apparatus 20 to the second loading position A2. 8 and 10, the first retraction position B1 is located at the other end of the linear rail 3 (a different side from the second retraction position B2), and the movement path of the second loading device 20 from the second retraction position B2 to the second loading position A2 does not include the first retraction position B1. By moving the first loading device 10 to the first retraction position B1 first, the second loading device 20 can move smoothly to the second loading position A2 without the first loading device 10 blocking its movement path.

[0025] In the above explanation, an example has been given in which two second loading devices 20 and one first loading device 10 are arranged in a straight line in this order and move on the same rail 3, but as another example, the ship loading system 1 may be arranged in such a way that the first loading device 10 is arranged between two second loading devices 20 and moves on the same rail 3. Another example of control of the marine vessel cargo handling system 1 according to this embodiment when cargo handling is performed by the first cargo handling apparatus 10 will be described below with reference to FIG.

[0026] For example, when liquefied ammonia is received as a first object from a liquefied ammonia transport ship 4, the positions of the first loading apparatus 10 and the second loading apparatus 20 are controlled so that the first loading apparatus 10 is at the first loading position A1 and the second loading apparatus 20 is at the second retracted position B2 that does not physically interfere with the first loading apparatus 10 at the first loading position A1. The second retracted position B2 is, for example, a position where the unloader 23 of the second loading apparatus 20 in a stationary state does not physically interfere with the loading arm 13 of the first loading apparatus 10 at the first loading position A1 at least in the horizontal direction, and is, for example, a position where the unloader 23 (including the arm 22) of the second loading apparatus 20 does not physically interfere with the movable range C1 of the loading arm 13 of the first loading apparatus 10 at the first loading position A1. In other words, the second retracted position B2 may be a position where the stationary unloader 23 is not physically included in the movable range C1 of the loading arm 13 at the first loading position A1. While FIG. 11 shows the movable range C1 of the loading arm 13 in a planar view, the movable range C1 is a three-dimensional range. That is, taking into consideration not only the horizontal direction but also the vertical direction, the second retracted position B2 of the second loading device 20 can be set to a predetermined range so that the stationary unloader 23 is not physically included in the movable range C1. As shown in FIG. 11, the two second loading devices 20 (24, 25) located on both sides of the first loading device 10 can be retracted to the second retracted positions B2 (B21, B22) so as to be away from the first loading position A1 of the first loading device 10. When in the second retracted position B2, the second loading device 20 is not driven and does not perform loading. The first loading device 10 is connected to the onshore piping 2 at the first loading position A1 by a jumper arm 14. The first loading device 10 loads a first object at the first loading position A1.

[0027] At this time, the control of the first loading device 10 and the second loading device 20 by the control device 50 may be performed in the order of steps S11 and S12 described with reference to FIG. 6, or step S11 may be performed after step S12.

[0028] Next, another example of control of the marine vessel cargo handling system 1 according to this embodiment when cargo handling is performed by the second cargo handling apparatus 20 will be described with reference to FIGS. For example, when coal is received as the second object from a coal transport ship 5, the positions of the first loading apparatus 10 and the second loading apparatus 20 are controlled so that the second loading apparatus 20 is at the second loading position A2 and the first loading apparatus 10 is at the first retracted position B3 where it does not physically interfere with the second loading apparatus 20 at the second loading position A2. The first retracted position B3 is, for example, a position where the loading arm 13 of the first loading apparatus 10 in a stationary state does not physically interfere with the unloader 23 of the second loading apparatus 20 at the second loading position A2, at least in the horizontal direction, and is, for example, a position where the loading arm 13 of the first loading apparatus 10 does not physically interfere with the movable range C2 of the unloader 23 (including the arm 22) of the second loading apparatus 20 at the second loading position A2. In other words, the first retracted position B3 may be a position where the loading arm 13 in a stationary state is not physically included in the movable range C2 of the unloader 23 at the second loading position A2. Note that while the movable range C2 of the unloader 23 is shown in a planar manner in Fig. 8, the movable range C2 is a three-dimensional range. In other words, taking into consideration not only the horizontal direction but also the vertical direction, the first retracted position B3 of the first loading device 10 can be set to a predetermined range so that the loading arm 13 in a stationary state is not physically included in the movable range C2. As shown in Figures 12 and 13, when two second loading devices 20 (24, 25) located on either side of the first loading device 10 each have a second loading position A2 (A21, A22), the first loading device 10 can be moved appropriately to a first retracted position B3 where it does not physically interfere with at least one of the second loading devices 24 (or 25) at the second loading position A21 (or A22). When in the first retracted position B3, the first loading device 10 is not driven and does not perform loading. The second loading device 20 loads a second object at the second loading position A2.

[0029] 14, the control device 50 moves the second loading apparatus 20 to the second loading position A2 (step S31). Then, the control device 50 determines, for example, whether the first loading apparatus 10 is in the first retracted position B3, and if it determines that the first loading apparatus 10 is not in the first retracted position B3, it retracts the first loading apparatus 10 to the first retracted position B3 (step S32). When two second loading apparatuses 20 (24, 25) are used, one on each side of the first loading apparatus 10, as one of the second loading apparatuses 20 (24 or 25) moves to the second loading position A2, the first loading apparatus 10 can be retracted to the first retracted position B3 relative to that second loading apparatus 20 (24 or 25) as appropriate. For example, as shown in Figures 12 and 13, when one of the second loading apparatuses 20 (24 or 25) is moved to the second loading position A2 (A21 or A22), the first loading apparatus 10 follows it, moving in the same direction as the movement of the second loading apparatus 20 (24 or 25) and can be retracted to the first retracted position B3. Also, when the other of the second loading apparatuses 20 (25 or 24) is moved to the second loading position A2 (A22 or A21), the first loading apparatus 10 follows it, moving in the same direction as the movement of the second loading apparatus 20 (25 or 24) and can be retracted to the first retracted position B3. The control device 50 can control the positions of the first loading device 10 and the second loading device 20 in conjunction with the movement of the second loading device 20 to the second loading position A2 so that the first loading device 10 is in the first retracted position B3 where it does not physically interfere with the second loading device 20 at the second loading position A2.

[0030] As described above, a ship loading / unloading system according to an embodiment of the present invention includes a first loading / unloading device mounted on a platform and movable together with the platform, a second loading / unloading device movable on rails, a first drive source that supplies power to the first loading / unloading device, a second drive source that supplies power to the second loading / unloading device, and at least one control device that controls the positions of the first loading / unloading device and the second loading / unloading device. The first loading / unloading device is capable of loading / unloading a first object at a first loading position, and the second loading / unloading device is capable of loading / unloading a second object at a second loading position. When loading / unloading a first object, the control device controls the positions of the first loading / unloading device and the second loading / unloading device so that the first loading / unloading device is at the first loading position and the second loading / unloading device is at a first retracted position that does not physically interfere with the first loading / unloading device at the first loading position. Furthermore, when loading a second object, the control device controls the positions of the first and second loading devices so that the second loading device is at the second loading position and the first loading device is at the second retracted position where it does not physically interfere with the second loading device at the second loading position. According to this embodiment, the first loading device is attached to a movable platform to make it movable. In addition to loading the first object at the first loading position, when loading the second object using the second loading device, the control device moves the first loading device to the second retracted position where it does not physically interfere with the second loading device, thereby enabling the loading and unloading of multiple objects. The second loading device can utilize existing equipment, and by controlling the position of the existing second loading device and the position of the new first loading device, a highly convenient ship loading and unloading system can be provided that can load and unload multiple objects. Even when space for installing new equipment is limited, a ship loading and unloading system that can operate in a limited space by utilizing the space of existing equipment can be provided.

[0031] The first object may be a fluid, the first cargo handling device may be a fluid handling device equipped with a loading arm, the second object may be bulk material such as coal, and the second cargo handling device may be a bulk material handling device equipped with an existing unloader. A highly convenient cargo handling system for a ship capable of handling both fluids and bulk material can be provided.

[0032] The first retracted position is a position where the loading arm does not physically interfere with the range of movement of the unloader at the second loading position, and the second retracted position is a position where the unloader does not physically interfere with the range of movement of the loading arm at the first loading position. By setting the first retracted position and the second retracted position in this manner, it is possible to ensure that the unloader does not physically interfere with the movement of the loading arm when loading a first object, and that the loading arm does not physically interfere with the movement of the unloader when loading a second object, making both types of loading possible and providing a highly convenient cargo handling system for a ship.

[0033] The first loading / unloading device can have a jumper arm that is coupled to the loading arm and detachably connected to a piping on land. The first loading / unloading position is a position where the jumper arm can be connected to this piping. By providing the piping and the detachable jumper arm, even if the first loading / unloading device is movable, it can be reliably attached and detached to the fixed piping on land, allowing for reliable loading and unloading. For example, a ship loading / unloading system can be provided that can use existing fixed piping to load and unload the first object, which is a fluid.

[0034] The platform of the first loading device is movable on rails on which the second loading device is also movable. The second loading device and rails may be existing equipment, and the first loading device can be made movable by utilizing existing equipment. By utilizing existing equipment, multiple objects can be loaded and unloaded without requiring new space. Furthermore, by allowing both the first loading device and the second loading device to move on rails, it becomes easier to control the horizontal positions of the first loading device and the second loading device.

[0035] The first object can be a non-fossil fuel, such as hydrogen or ammonia, that does not produce CO2 when burned, and the second object can be a fossil fuel. In recent years, a shift from fossil fuels to such non-fossil fuels has been advocated, and carbon-neutral efforts are thriving. The ship loading / unloading system according to this embodiment can load and unload not only fossil fuels but also non-fossil fuels, thereby contributing to such efforts. Furthermore, by using a coal unloader installed on a pier or the like as the second loading / unloading device, the newly installed loading / unloading device can be the first loading / unloading device for non-fossil fuels alone, thereby providing a highly convenient ship loading / unloading system that utilizes existing facilities for fossil fuels.

[0036] Although each embodiment of the present invention has been described above, various modifications and alterations are possible without departing from the spirit of the present invention. For example, the first loading / unloading device is not limited to a device that moves linearly between the first loading position and the first retracted position using rails or the like, but may also move along a non-linear path. Furthermore, the second loading / unloading device is not limited to an existing device, and the first loading / unloading device and second loading / unloading device that constitute the ship loading / unloading system may be newly installed. The number of components that constitute the ship loading / unloading system is also not limited to those described herein, as long as it is in line with the spirit of the present invention. [Explanation of symbols]

[0037] 1. Ship cargo handling systems 2 Piping 3 Rail 10 First cargo handling device 11 Mounting stand 20 Second cargo handling device 30 First driving source 40 Second driving source 50 Control device

Claims

1. a first loading device attached to the platform and configured to be movable together with the platform, and capable of loading and unloading a first object at a first loading position; a second loading device configured to be movable on a rail and capable of loading a second object at a second loading position; a first drive source that supplies power to the first cargo handling device; a second drive source that supplies power to the second cargo handling device; at least one control device that controls the positions of the first loading device and the second loading device; The control device When loading a first object, the positions of the first loading device and the second loading device are controlled so that the first loading device is at the first loading position and the second loading device is at a second retracted position that does not physically interfere with the first loading device at the first loading position; When loading a second object, the positions of the first loading device and the second loading device are controlled so that the second loading device is at the second loading position and the first loading device is at a first retracted position that does not physically interfere with the second loading device at the second loading position. A cargo handling system for a ship.

2. the first object is a fluid, the first cargo handling device is a fluid cargo handling device equipped with a loading arm, the second object is a bulk item; The second loading device is a bulk loading device equipped with an unloader.

2. A cargo handling system for a ship according to claim 1.

3. the first retracted position is a position where the loading arm does not physically interfere with the movable range of the unloader at the second loading position, The second retracted position is a position where the unloader does not physically interfere with the movable range of the loading arm at the first loading position.

3. A cargo handling system for a vessel according to claim 2.

4. the first cargo handling device has a jumper arm connected to the loading arm and detachably connected to a piping on land, 4. The marine vessel loading / unloading system according to claim 2, wherein the jumper arm is connectable to the piping at the first loading / unloading position.

5. 3. The cargo handling system for a ship according to claim 1, wherein the platform is movable on the rails.

6. 3. The cargo handling system for a ship according to claim 1, wherein the first object is a non-fossil fuel, and the second object is a fossil fuel.

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