KR20240055630A - Ship - Google Patents

Abstract

A ship that can be easily obtained by wind power is provided.
The ship 1 is a ship using the existing ship 100. In other words, by using the existing ship 100, the ship 1 can be obtained through modification without manufacturing the entire ship from scratch. The wind power propulsion unit 10, which propels the hull by wind power, is additionally provided with respect to the upper deck 19 of the hull 11 of the existing ship 100. Therefore, by using the hull of the existing ship 100 and adding the wind power propulsion unit 10 to the upper deck 19 of the hull 11, the ship can be remodeled easily and at low cost. By the above, the ship 1 propelled by wind power can be easily obtained.

Description

SHIP{SHIP}

This application claims priority based on Japanese Patent Application No. 2022-168412, filed on October 20, 2022. The entire contents of the application are incorporated by reference into this specification.

The present invention relates to ships.

Recently, in order to reduce GHGs such as CO ₂ , ships that generate thrust using renewable energy such as wind power are known. For example, the ship described in Patent Document 1 is equipped with a wind power propulsion unit on the hull that propels the hull by wind power, in addition to a propeller using a propeller.

Patent Document 1: Japanese Patent Publication No. 2020-45018

Here, in order to obtain a ship with a wind power propulsion unit, it is necessary to build a new ship. However, there is a problem that building a new ship costs money and requires more work to build. Therefore, there has been a demand for easily obtaining ships propelled by wind power.

The present invention was made to solve such problems, and its purpose is to provide a ship that can be easily obtained by wind power.

The ship according to the present invention is a ship using an existing ship, and is provided in addition to the upper deck of the hull of the existing ship, and is provided with a wind power propulsion unit that propels the hull by wind power.

The ship according to the present invention is a ship using an existing ship. In other words, by using an existing ship, it is possible to obtain a ship through modification rather than manufacturing the entire ship from scratch. The wind power propulsion unit, which propels the hull by wind power, is additionally provided on the upper deck of the existing ship's hull. Therefore, by utilizing the hull of an existing ship and adding a wind power propulsion unit to the upper deck of the hull, the ship can be modified easily and at low cost. By the above, a ship propelled by wind power can be easily obtained.

The wind power propulsion unit may be disposed above the reinforcement member of the hull. In this case, the wind power propulsion unit can be supported by a reinforcing member.

The wind power propulsion unit may have a support structure mounted on the upper deck and a propulsion unit that generates propulsion force. In this case, a wind power propulsion unit can be provided with a support structure interposed on the upper deck. Therefore, it is possible to provide a wind power propulsion unit on the upper deck of an existing ship while reducing the constraints of the existing structure on the upper deck of the existing ship.

The support structure may be mounted on the upper deck, crossing the existing outfitting of the upper deck. In this case, a wind power propulsion unit can be provided on the upper deck without moving the existing equipment of the existing ship.

In the hull, a radar may be provided on the bow side rather than the wind power propulsion unit provided on the bow side. In this case, the radar can successfully detect objects on the bow side without being obstructed by the wind power propulsion unit.

In the hull, a wind direction and anemometer may be provided on the bow side rather than the wind power propulsion unit provided furthest on the bow side. In this case, the wind direction and anemometer is not hindered by the wind power propulsion unit and can well detect the wind direction and wind speed.

The wind power propulsion part can be folded, and may be arranged so as not to protrude from the width direction of the hull in the folded state. In this case, even when a remodeled ship enters a bay, etc., it can do so with the same safety as an existing ship.

The support structure may be disposed above the reinforcement member of the ship body. In this case, existing reinforcing members can support the added wind propulsion unit. For this reason, the increase in cost for additionally providing a new reinforcement member to add a wind power propulsion unit can be suppressed.

According to the present invention, it is possible to provide a ship that can be easily obtained by wind power.

1 is a schematic cross-sectional view showing an example of a ship according to an embodiment of the present invention.
Figure 2(a) is a diagram explaining the principle of the rotor sail, and Figure 2(b) is a schematic plan view of the ship.
Figure 3 is a schematic plan view of the ship.
Figure 4 is a schematic cross-sectional view of the hull when viewed from the rear.
Figure 5 is a diagram for explaining a state in which a support structure is disposed above a reinforcing member.
Figure 6 is a schematic cross-sectional view showing an existing ship.

Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings. However, in the following description, the terms "front" and "after" correspond to the direction connecting the bow and stern of the hull, and the term "lateral" corresponds to the left and right (width) directions of the hull. The terms “top” and “bottom” correspond to the up and down directions of the hull.

1 is a schematic cross-sectional view showing an example of a ship according to an embodiment of the present invention. The ship 1 is a ship that transports petroleum-based liquid cargo such as crude oil or liquid gas, for example, an oil tanker. However, the ship is not limited to an oil tanker, and may be, for example, a bulk carrier or other various types of ships.

As shown in FIG. 1 , the ship 1 is provided with a hull 11, a propulsion machine 12, and a plurality of wind power propulsion units 10. The hull 11 has a bow 2, a stern 3, an engine room 4, and a cargo room 6. An upper deck 19 is provided on the upper part of the hull 11 (or within the ship). The bow portion 2 is located on the front side of the hull 11. The stern portion 3 is located on the rear side of the hull 11.

The bow portion 2 has a shape aimed at reducing wave-breaking resistance in, for example, a fully loaded draft state. The propeller 12 mechanically generates the thrust of the hull 11, and for example, a screw is used. The propeller 12 is installed below the waterline (water surface of the sea W) in the stern 3 during propulsion. Additionally, a rudder 15 for adjusting the course is installed below the waterline in the stern part 3.

The engine room 4 is provided in a position adjacent to the bow side of the stern part 3. The engine room 4 is a compartment for arranging the main engine 16 for providing driving force to the thruster 12. On the upper deck 19, a living quarters 22 and an exhaust chimney 23 are provided above the engine room 4. The cargo room 6 is provided between the bow section 2 and the engine room 4. The cargo room 6 is a compartment for accommodating cargo. The cargo compartment 6 is divided into a plurality of cargo compartments 26 and a plurality of ballast tanks 27 by adopting a double hull structure of the outer plating 20 and the inner plating 21. However, the bulkheads dividing the cargo compartment 26 are made of bulkheads 28A, 28B, 28C, 28D, and 28E in order from the bow side. The cargo compartment 26 is partitioned by a partition wall 28F extending in the front-rear direction (see FIGS. 3 and 4). The ballast tank 27 accommodates an amount of ballast water depending on the size of the ship, etc.

The wind power propulsion unit 10 is a mechanism that propels the hull 11 by wind power. In this embodiment, a rotor-type wind power propulsion mechanism is adopted as the wind power propulsion unit 10. A plurality of wind power propulsion units 10 (four here) are provided so as to be arranged in the front-to-back direction on the upper deck 19 of the hull 11. As shown in (a) of FIG. 2, the wind power propulsion unit 10 includes a cylindrical rotor sail 31 (propulsion unit) extending in the vertical direction and an electric motor 32 that rotates the rotor sail 31. Equipped with When the wind (WD) blows from the lateral side with respect to the rotor sail (31), the rotation direction of the rotor sail (31) and the wind (WD) direction are opposite to each other at the rear side, and the rotation direction of the rotor sail (31) is at the front side. and the direction of the wind (WD) coincides. As a result, a pressure difference occurs before and after the rotor sail 31, thereby generating forward thrust PF (Magnus effect). As shown in Figure 2 (b), when the wind (WD) blows from the side against the hull 11, the hull 11 moves forward due to the thrust PF of each wind power propulsion unit 10. do.

As shown in FIG. 1, the hull 11 is provided with a radar 51, a wind direction anemometer 52, a rudder gauge 53, and a measuring instrument 54. The radar 51 is a device that detects objects existing around the ship 1. The wind direction and anemometer 52 is a device capable of detecting information about wind, such as wind direction and wind speed. In the hull 11, a radar 51 and a wind direction anemometer 52 are provided on the bow side of the wind power propulsion unit 10A, which is provided furthest on the bow side. Specifically, the radar 51 and the wind direction anemometer 52 are provided on the upper deck 19 at a position corresponding to the bulkhead 28A. The goniometer 53 is a device that detects the angle of the key 15. The rudder angle gauge 53 is provided at the stern portion 3. The measuring instrument 54 is a device that measures the hull movement and orientation, such as attitude and sway, of the hull 11. The measuring instrument 54 is provided in the bow portion 2. In addition, the hull 11 may be equipped with an information receiving unit capable of determining the wind condition in advance, such as a weather forecast, or a measuring instrument capable of detecting the position of the hull 11, such as GPS.

Next, the configuration of the wind power propulsion unit 10 will be described in more detail with reference to FIGS. 1, 3, and 4. Figure 3(a) is a schematic diagram of the ship body 11 when viewed from above. Figure 4 is a schematic cross-sectional view of the hull 11 when viewed from the stern side. As shown in FIG. 4, the hull 11 is provided with a ballast tank 27A on the starboard side, a ballast tank 27B on the port side, and a ballast tank 27C on the bottom side. The ballast tanks 27A and 27B are formed between the outer plates 20A and 20B and the inner plates 21A and 21B in the width direction, respectively (see also Fig. 3). The ballast tank 27C is formed between the outer plate 20C and the inner plate 21C on the bottom side.

The wind power propulsion unit 10 includes a support structure 40 mounted on the upper deck 19 and a rotor sail 31 as a propulsion unit that generates propulsive force. The lower end of the support structure 40 is fixed to the upper deck 19. The lower end of the rotor sail 31 is fixed to the upper surface of the support structure 40. Accordingly, the lower end of the rotor sail 31 is not provided directly on the upper deck 19, but is provided on the upper deck 19 via the support structure 40. In this embodiment, since four wind propulsion units 10A, 10B, 10C, and 10D are provided, four rotor sails 31 and four support structures 40 are provided. However, the number or arrangement of the rotor sail 31 and the support structure 40 are not particularly limited.

As shown in FIG. 4, the support structure 40 includes an upper wall portion 41 extending in the ship width direction at a position spaced upward from the upper deck 19, and left and right end portions of the upper wall portion 41 in the ship width direction. It is provided with side wall parts (41A, 41B) extending downward from the part. The upper wall portion 41 extends from the central position of the hull 11 to the ends of the starboard side and the port side in the width direction. From the upper surface of the upper wall portion 41, the rotor sail 31 extends upward at the central position in the ship width direction. The lower ends of the side wall portions 41A and 41B are fixed to the upper deck 19. The upper wall portion 41 and the side wall portions 41A and 41B are made of a plate-shaped member with a predetermined thickness. The upper wall portion 41 and the side wall portions 41A and 41B are configured to extend in the front-back direction with a predetermined thickness. Thereby, a support structure 40 is constructed on the upper deck 19. A space SP is formed between the upper wall portion 41 and the upper deck 19. In the space SP, equipment 46 provided on the upper deck 19, such as piping, may be placed. In this way, the support structure 40 may be mounted on the upper deck 19 while crossing the equipment 46 of the upper deck 19.

As shown in FIGS. 1 and 3 , the support structure 40 of the wind power propulsion unit 10A is provided at a position above the partition wall 28B. The support structure 40 of the wind power propulsion unit 10B is provided at a position above the partition wall 28C. The support structure 40 of the wind power propulsion unit 10C is provided at a position above the partition wall 28D. The support structure 40 of the wind power propulsion unit 10D is provided at a position above the partition wall 28E. As shown in FIG. 1, the rear end 40b of the support structure 40 of the wind power propulsion unit 10A is disposed above the partition 28B. The rear end 40b of the support structure 40 of the wind power propulsion unit 10B is disposed above the partition wall 28C. The front end portion 40a of the support structure 40 of the wind power propulsion unit 10C is disposed above the partition wall 28D. The front end portion 40a of the support structure 40 of the wind power propulsion unit 10D is disposed above the partition wall 28E.

The wind power propulsion unit 10 is disposed above the reinforcement member 60 of the ship body 11. In this embodiment, the support structure 40 is disposed above the reinforcing member 60 of the ship body 11. The reinforcing member 60 is a member that reinforces the structural strength of the ship body 11. Examples of the reinforcing member 60 include bulkheads and longitudinals provided within the ship body 11. In this embodiment, the inner plates 21A, 21B (FIGS. 3 and 4), the partition walls 28A to 28F (FIGS. 1 and 3), and the longitudinal member 47 (see FIG. 4) are the reinforcing member 60. corresponds to These reinforcing members 60 are members that reinforce the upper deck 19 from the lower surface by being fixed to the lower surface of the upper deck 19.

In this embodiment, the side wall portions 41A and 41B of the support structure 40 are provided above the inner plates 21A and 21B. As shown in Fig. 5(a), the side wall portion 41A is arranged so as to fall within the range of the plate thickness of the inner plate 21A in the line width direction. As a result, the lower end of the side wall portion 41A and the upper end of the inner plate 21A are arranged to face each other in the vertical direction with the upper deck 19 sandwiched between them. However, any point within the range between the main surfaces 21a and 21b of the inner plate 21 may be contained within the range between the main surfaces 41a and 41b of the side wall portion 41A. . However, a part of the support structure 40 and a part of the reinforcement member 60 may overlap in the vertical direction. For example, as shown in Figure 5(b), when the support structure 40 has a side wall portion 45 extending in the line width direction, a portion of the side wall portion 45 and the inner plate 21A The structure in which some parts overlap in the vertical direction is a structure in which the support structure 40 is provided above the reinforcing member 60.

In addition, as shown in FIG. 1, a part of the support structure 40 of the wind power propulsion units 10A, 10B, 10C, and 10D is vertically aligned with the partition walls 28B, 28C, 28D, and 28E, which are the reinforcing members 60. are arranged so that they overlap.

However, the side wall portions 41A, 41B of the support structure 40 may be arranged so as to overlap the longitudinal member 47. In addition, the number of side wall portions of the support structure 40 is not limited, and in addition to the side wall portions 41A and 41B, it may further have a side wall portion that overlaps the partition 28F. In addition, the position, number, extension direction, etc. of the side wall portions of the support structure 40 may be changed as appropriate.

As shown in FIG. 3(b), the wind power propulsion unit 10 can be folded. Specifically, the rotor sail 31 is rotatably connected to the support structure 40 and can be folded to extend in the horizontal direction. Here, the rotor sails 31 of the wind power propulsion units 10A and 10C are folded backward. The rotor sails 31 of the wind power propulsion units 10B and 10D are folded forward. The rotor sail 31 of the wind power propulsion unit 10 is arranged so as not to protrude from the width direction of the hull 11 in the folded state. That is, the upper ends of the folded rotor sails 31 of the wind power propulsion units 10A, 10B, 10C, and 10D are all disposed inside the shell plates 20A and 20B in the width direction. In addition, the rotor sails 31 of the wind power propulsion units 10A, 10B, 10C, and 10D are arranged to be inclined with respect to the center line CL in the width direction of the hull 11 in the folded state. The inclination angle of the rotor sail 31 with respect to the center line CL is not particularly limited, as long as it does not contact other rotor sails 31 and does not protrude from the hull 11.

The rotor sails 31 of the wind power propulsion units 10A, 10B, 10C, and 10D may be arranged so as to be supported by the support structure 40 of another wind power propulsion unit or the reinforcement member 60 in the folded state. In the example shown in FIG. 3(b), the upper end of the rotor sail 31 of the wind power propulsion unit 10A is arranged to be supported on the support structure 40 of the adjacent wind power propulsion unit 10B. The upper end of the rotor sail 31 of the wind power propulsion unit 10B is arranged to be supported on the support structure 40 of the adjacent wind power propulsion unit 10A. The upper end of the rotor sail 31 of the wind power propulsion unit 10C is arranged to be supported on the support structure 40 of the adjacent wind power propulsion unit 10D. The upper end of the rotor sail 31 of the wind power propulsion unit 10D is arranged to be supported on the support structure 40 of the adjacent wind power propulsion unit 10C. However, the upper end of the rotor sail 31 may be placed directly on the upper deck 19 in a state supported by the reinforcing member 60 at the position of the reinforcing member 60.

Here, the ship 1 according to the present embodiment is a ship using the existing ship 100 as shown in FIG. 6. The ship 1 is manufactured by modifying the upper deck 19 of the hull 11 of the existing ship 100, such as providing an additional wind power propulsion unit 10. The existing ship 100 does not have a wind power propulsion unit 10 and moves only by the propulsion force that rotates the propulsion machine 12. Since the existing ship 100 moves by the propulsion of the propulsion machine 12, the rudder 15 facing from the side may be small, but since the modified ship 1 is propelled by wind power, the rudder 15 is used to adjust the direction. Remodel it into a larger one (see Figure 1). However, when remodeling, the propeller of the thruster 12 may be replaced with a variable pitch one. In addition, in the existing ship 100, the radar 51 and the wind direction anemometer 52 are provided in the upper part of the accommodation 22, but when remodeling, the radar 51 and Change the position of the wind direction anemometer 52 or provide an additional one (see Figure 1). However, in this specification, “existing ship” means “a ship that has already been built” and does not mean “a type of ship (ship) that has existed since ancient times.”

On the upper deck 19 of the existing ship 100, existing equipment 46 such as piping is provided. When remodeling, the position of the existing equipment 46 is not changed and the wind power propulsion unit 10 is provided so as not to interfere with the existing equipment 46. The support structure 40 is mounted on the upper deck 19, crossing the existing equipment 46 of the upper deck 19.

Next, the actions and effects of the ship 1 according to this embodiment will be explained.

The ship 1 according to this embodiment is a ship using the existing ship 100. In other words, by using the existing ship 100, the ship 1 can be obtained through modification without manufacturing the entire ship from scratch. The wind power propulsion unit 10, which propels the hull by wind power, is additionally provided with respect to the upper deck 19 of the hull 11 of the existing ship 100. Therefore, by using the hull of the existing ship 100 and adding the wind power propulsion unit 10 to the upper deck 19 of the hull 11, the ship can be remodeled easily and at low cost. By the above, the ship 1 propelled by wind power can be easily obtained.

The wind power propulsion unit 10 may be disposed above the reinforcement member 60 of the ship body 11. In this case, the wind power propulsion unit 10 can be supported by the reinforcing member 60.

The wind power propulsion unit 10 may have a support structure 40 mounted on the upper deck 19 and a rotor sail 31 (propulsion unit) that generates propulsive force. In this case, the wind power propulsion unit 10 can be provided with respect to the upper deck 19 via the support structure 40. Therefore, the wind power propulsion unit 10 can be provided on the upper deck 19 of the existing ship 100 in a state in which the constraints of the existing structure of the upper deck 19 are reduced.

The support structure 40 may be mounted on the upper deck 19 in a state that crosses the existing equipment 46 of the upper deck 19. In this case, the wind power propulsion unit 10 can be provided on the upper deck 19 without moving the existing equipment 46 of the existing ship 100.

In the hull 11, the radar 51 may be provided on the bow side rather than the wind power propulsion unit 10A provided furthest on the bow side. In this case, the radar 51 is not hindered by the wind power propulsion unit 10 and can successfully detect objects in front of the ship.

In the hull 11, a wind direction anemometer 52 may be provided on the bow side rather than the wind power propulsion unit 10 provided furthest on the bow side. In this case, the wind direction and anemometer 52 is not hindered by the wind power propulsion unit 10 and can well detect the wind direction and wind speed.

The wind power propulsion unit 10 can be folded, and may be arranged so as not to protrude from the width direction of the hull 11 in the folded state. In this case, even when the remodeled ship 1 enters a bay, etc., the wind power propulsion unit 10 is prevented from coming into contact with structures on the land side, and the ship 10 can enter with the same safety as that of the existing ship 100.

The support structure 40 may be disposed above the reinforcing member 60 of the ship body 11. In this case, the existing reinforcing member 60 can support the added wind power propulsion unit 10. For this reason, the increase in cost for additionally providing a new reinforcement member in order to add the wind power propulsion unit 10 can be suppressed.

The present invention is not limited to the above-described embodiments.

For example, in the above-described embodiment, the wind power propulsion unit is exemplified by having a rotor sail, but the type of the wind power propulsion unit is not particularly limited. For example, as a wind power propulsion unit, a wind power propulsion unit of a type such as a light wing sail typified by a wind challenger or a suction sail may be employed.

The support structure of the wind power propulsion unit described above was provided above the reinforcing member, but may be provided at a position other than the reinforcing member. In addition, although the above-mentioned wind power propulsion part had a support structure, the support structure may be omitted and the propulsion part may be provided directly by adding it to the upper deck. Specifically, the rotor sail 31 may be placed directly above the bulkhead 28 without passing through a support structure. In this case, since no separate support structure is provided, it becomes possible to further reduce costs.

[Form 1]

As a ship using an existing ship,

A ship that is additionally provided on the upper deck of the hull of the existing ship and includes a wind power propulsion unit that propels the hull by wind power.

[Form 2]

The ship according to form 1, wherein the wind power propulsion unit is disposed above the reinforcing member of the hull.

[Form 3]

The wind power propulsion unit,

A support structure mounted on the upper deck,

A vessel according to type 1 or type 2, having a propulsion unit that generates propulsion.

[Form 4]

The ship according to mode 3, wherein the support structure is mounted on the upper deck, crossing the existing equipment of the upper deck.

[Form 5]

The ship according to any one of modes 1 to 4, wherein a radar is provided on the hull closer to the bow than the wind power propulsion unit provided closest to the bow.

[Form 6]

The ship according to any one of modes 1 to 5, wherein a wind direction and anemometer is provided in the hull on the bow side of the wind power propulsion unit furthest on the bow side.

[Form 7]

The ship according to any one of modes 1 to 6, wherein the wind power propulsion unit is foldable and, in a folded state, is arranged so as not to protrude from the width direction of the hull.

[Form 8]

The ship according to aspect 3, wherein the support structure is disposed above the reinforcing member of the hull.

One… Ship
10… Wind power propulsion department
11… hull
31… Rotor sail (propulsion part)
40… support structure
51… radar
54… wind direction anemometer
60… reinforcement member
100… existing ship

Claims (8)

As a ship using an existing ship,
A ship that is additionally provided on the upper deck of the hull of the existing ship and includes a wind power propulsion unit that propels the hull by wind power. According to paragraph 1,
The wind power propulsion unit is disposed above the reinforcing member of the hull. According to paragraph 1,
The wind power propulsion unit,
A support structure mounted on the upper deck,
A ship having a propulsion unit that generates propulsion. According to paragraph 3,
The support structure is mounted on the upper deck in a state that crosses the existing equipment of the upper deck. According to paragraph 1,
A ship in which a radar is provided in the hull on the bow side rather than the wind power propulsion unit provided furthest on the bow side. According to paragraph 1,
A ship in which a wind direction anemometer is provided in the hull on the bow side rather than the wind power propulsion unit provided furthest on the bow side. According to paragraph 1,
The wind power propulsion unit is foldable, and is arranged so as not to protrude from the width direction of the hull in the folded state. According to paragraph 3,
A ship, wherein the support structure is disposed above a reinforcing member of the hull.