Methanol fuel container vessel

Abstract

To provide a methanol fuel container vessel suppressing load capacity reduce for a container, with easy installment of transfer pump, and not limiting selection of a transfer pump to an expensive one.SOLUTION: A methanol fuel container vessel 100 includes a methanol tank 10 for fuel below an upper deck 2 more on stern side than an engine room 4. It is preferable to have a living quarter 1 arranged only over the engine room 4.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a methanol fuelled ship, in particular to a methanol fuelled container ship. [Background technology]

[0002] Traditionally, heavy oil has been the main fuel used on ships, but international treaties and other regulations have been tightening regarding emissions of nitrogen oxides, sulfur oxides, carbon dioxide, and other substances contained in exhaust gases.

[0003] In response to this, ships powered by methanol have been proposed as an environmentally friendly, clean fuel.

[0004] Patent Document 1 describes an invention relating to a ship for transporting methanol, in which methanol taken from a methanol storage tank is used as fuel for a diesel engine, and an invention relating to an electrically propulsed ship that uses hydrogen gas obtained by reforming methanol to generate electricity in a fuel cell.

[0005] Patent Document 2 describes an invention relating to a ship in which a methanol fuel tank 12 is arranged on the upper deck and supplies methanol to an internal combustion engine 11 . [Prior art documents] [Patent documents]

[0006] [Patent Document 1] Japanese Patent Application Publication No. 10-167189 [Patent Document 2] JP 2015-221645 A Summary of the Invention [Problem to be solved by the invention]

[0007] However, if methanol fuel tanks are placed on the upper deck of a container ship, the area for loading containers is sacrificed, resulting in a reduction in loading capacity.

[0008] It is also possible to place a methanol tank in the container hold below the upper deck, but just like on the upper deck, this would reduce the loading capacity and require an expensive transfer pump such as a deep well type or submerged type, or it would require a compartment for installing the transfer pump below the methanol tank, reducing the space for placing the methanol tank.

[0009] The present invention is devised to solve the above-mentioned problems of the conventional technology, and provides a methanol-fueled container ship that suppresses a reduction in container loading capacity, is easy to install a transfer pump, and does not limit the selection of transfer pumps to expensive ones. [Means for solving the problem]

[0010] In order to solve the above problems, the methanol fuel container ship of the present invention is equipped with a methanol fuel tank below the upper deck on the stern side of the engine room.

[0011] Preferably, the accommodation is arranged only above the engine room.

[0012] The methanol-fueled container ship of the present invention includes not only ships that use methanol as fuel only, but also ships that use multiple types of fuel including methanol, such as dual-fuel (DF) ships that use methanol and heavy oil. Effect of the Invention

[0013] The methanol fuel container ship of the present invention is provided with a methanol tank for fuel under the upper deck aft of the engine room, so the container loading area on the upper deck is not sacrificed. Also, the area under the upper deck aft of the engine room narrows toward the stern, and is not very suitable for loading containers, so a methanol tank can be installed and used effectively. Also, the area under the upper deck aft of the engine room is located higher than the main engine installed in the engine room, so a transfer pump can be easily installed below the methanol tank, and a transfer pump can be selected that is not limited to expensive transfer pumps such as deep well type or submerged type.

[0014] Also, when the accommodation space is located only above the engine room, it is more effective to provide a methanol fuel tank below the upper deck aft of the engine room. That is, in the case of a ship in which the accommodation space is located near the center of the hull, such as a large container ship, the space below the accommodation space cannot be used as a container hold, so providing a methanol tank below the accommodation space does not substantially reduce the load capacity. In contrast, when the accommodation space is located only above the engine room, the engine room is located below the accommodation space, so a methanol tank cannot be provided. Therefore, by providing a methanol fuel tank below the upper deck aft of the engine room, the reduction in load capacity can be effectively suppressed.

[0015] Thus, according to the present invention, it is possible to provide a methanol-fueled container ship that suppresses a reduction in the container's loading capacity, makes it easy to install a transfer pump, and does not require the selection of an expensive transfer pump. [Brief description of the drawings]

[0016] [Figure 1] FIG. 2 is a side view showing the stern of a methanol-fueled container ship according to an embodiment of the present invention. [Diagram 2] FIG. 2 is an enlarged side view showing a methanol tank portion. [Diagram 3] 3 is a cross-sectional view taken along line AA in FIG. 2. [Figure 4]FIG. 3 is a cross-sectional view taken along line BB in FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0017] A methanol-fueled container ship according to an embodiment of the present invention will be described with reference to Figures 1 to 4. The methanol-fueled container ship according to this embodiment is a container ship equipped with an accommodation area near the stern. The methanol-fueled container ship according to this embodiment includes not only ships that use only methanol as fuel, but also ships that use multiple types of fuel including methanol, such as dual-fuel (DF) ships that use methanol and heavy oil.

[0018] 1 is a side view showing the stern of a methanol-fueled container ship 100 according to an embodiment of the present invention. An accommodation area 1 is arranged near the stern of the methanol-fueled container ship 100. Containers 3 are loaded on upper decks 2 forward and aft of the accommodation area 1. In addition, the area below the upper deck 2 forward of the accommodation area 1 is a container hold, in which containers 3 are also loaded.

[0019] Inside the hull below the accommodation space 1, there is an engine room 4, in which a main engine 5 is disposed. The power of the main engine 5 is transmitted to a propeller 6, providing the propulsion force for the methanol-fueled container ship 100. A rudder 7 is disposed behind the propeller 6.

[0020] A methanol tank 10 for fueling the main engine 5 is installed below the upper deck 2 aft of the engine room 4. Methanol stored in the methanol tank 10 is supplied to the main engine 5 via piping 8. The area below the upper deck 2 aft of the engine room 4 is located higher than the main engine 5 arranged in the engine room 4, making it easy to install a transfer pump below the methanol tank and allowing the selection of a transfer pump that is not limited to expensive transfer pumps such as deep well or submerged type. Note that control equipment, etc. (not shown) is used to supply methanol.

[0021] Fig. 2 is an enlarged side view showing the methanol tank 10. Fig. 3 is a cross-sectional view taken along line AA in Fig. 2, and Fig. 4 is a cross-sectional view taken along line BB in Fig. 2. The methanol tank 10 is separated from the engine room 4 and the stern side by a bulkhead 9. The methanol tank 10 is rectangular in plan view, but its length in the hull's width direction and fore-aft direction decreases toward the bottom in accordance with the shape of the stern of the hull. In this way, the shape of the methanol tank 10 can be freely set to match the shape of the stern of the hull, making it possible to effectively utilize the space below the upper deck 2 behind the engine room 4.

[0022] The methanol fuel container ship 100 according to this embodiment is provided with a methanol tank 10 for fuel below the upper deck 2 on the stern side of the engine room 4, so the container loading area on the upper deck 2 is not sacrificed. In addition, the area below the upper deck 2 on the stern side of the engine room 4 tapers toward the stern, and is not particularly suitable for loading containers, so the methanol tank 10 can be placed there and used effectively. In addition, the area below the upper deck 2 on the stern side of the engine room 4 is located higher than the main engine 5 arranged in the engine room 4, so a transfer pump can be easily installed below the methanol tank, and a transfer pump can be selected that is not limited to expensive transfer pumps such as deep well type or submerged type.

[0023] In addition, when the accommodation space 1 is located only above the engine room 4, it is more effective to provide a methanol fuel tank 10 below the upper deck 2 aft of the engine room 4. That is, in the case of a ship in which the accommodation space is located near the center of the hull, such as a large container ship, the space below the accommodation space cannot be used as a container hold, so providing a methanol tank below the accommodation space does not substantially reduce the load capacity. In contrast, when the accommodation space 1 is located only above the engine room 4, the engine room 4 is located below the accommodation space 1, so a methanol tank cannot be provided. Therefore, by providing a methanol fuel tank 10 below the upper deck 2 aft of the engine room 4, the reduction in load capacity can be effectively suppressed.

[0024] In this way, the methanol-fueled container ship according to this embodiment has the advantages of suppressing a reduction in the container's loading capacity, facilitating the installation of transfer pumps, and not limiting the selection of transfer pumps to expensive ones.

[0025] Although a methanol-fueled container ship according to an embodiment of the present invention has been described above, the present invention is not limited to the above-described embodiment, and various other modifications are possible. [Explanation of symbols]

[0026] 1 residential area 2 Upper Deck 3. Container 4. Engine Room 5 Main engine 6 Propellers 7. Rudder 8 Piping 9 Bulkhead 10 Methanol Tank 100 Methanol fueled container ships

Claims

1. A methanol fuel container ship equipped with a methanol fuel tank below the upper deck aft of the engine room.

2. 2. The methanol-fueled container ship according to claim 1, wherein accommodation is located only above the engine room.

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