JP5563701B1 - Power generator and ship - Google Patents

Abstract

To provide a power generation device that can generate power by a water flow at the time of navigation when performing power generation, and that does not become resistance at the time of navigation when power generation is not performed, and a ship equipped with the power generation device.
A power generator 2 mounted on a ship includes a rotating body 21 that rotates by receiving a water flow, and a generator 22 that generates power by the rotation of the rotating body 21, and generates power during navigation of the ship. The power generation device having a configuration in which at least the rotator 21 is moved from a position that is not in contact with water to a position where the rotator 21 can rotate by contact with water.
[Selection] Figure 1

Description

  The present invention relates to a power generation device and a ship, and more particularly to a power generation device capable of generating power by rotating a rotating body by a water flow at the time of navigation and a ship equipped with the same.

  In recent years, from the viewpoint of soaring fuel oil and environmental protection, there has been an increase in the movement of a power source from an internal combustion engine to electricity, and even in ships, attempts have been made to use a motor driven by electricity as the power of a screw. .

  Normally, the electric power for driving the motor is provided by a storage battery, but when traveling for a long time or when using a large amount of electrical equipment such as lighting for squid fishing fishing boats, a large amount of electric power is required. It becomes necessary and power consumption increases.

  In addition to a normal storage battery, a spare storage battery may be separately mounted as an emergency power source, and the spare storage battery must be always charged.

  2. Description of the Related Art Conventionally, power generation devices mounted on ships for generating power during navigation have been proposed (Patent Documents 1 to 3).

  In Patent Document 1, a water bottom that has a concave portion that is continuous from the stern to the stern at the center of the bottom of the vessel and a water turbine is provided so that a part of the outer peripheral side protrudes from the concave portion. Is used to rotate the water wheel and generate power with a generator connected to the water wheel.

  Patent Document 2 describes a method in which a water turbine is attached to the bottom of a ship, and the water turbine is rotated by a water flow at the time of navigation to generate power with a generator.

  Further, Patent Document 3 discloses a water flow that flows into the water guide pipe during navigation by providing a water guide pipe from the bow to the stern of the hull, opening the tip of the water guide pipe to the bow, and providing a water wheel on the other end of the water guide pipe. Is described in which a water turbine is rotated to generate power with a generator.

Utility Model Registration No. 3163719 JP-A-5-236698 Japanese Patent No. 3926625

  According to the power generation device disclosed in the above-described conventional technology, it is possible to generate power by rotating a water turbine by a water flow generated during navigation.

  However, since each of the power generators has a structure in which the water turbine always receives a water flow during navigation, the water turbine receives the water flow even when power generation is not required, and there is a problem that a large resistance is given to the ship. .

  For example, Patent Document 1 discloses a hybrid motor boat that switches between a normal engine drive and a motor drive as necessary, and generates electricity by rotating a water wheel while sailing by the engine drive. Even when switching to driving, the water wheel is structured so as to continue to receive water flow by protruding into the concave portion of the ship bottom. For this reason, there is a problem that the water turbine becomes a great resistance during navigation, and as a result, the power consumption is unnecessarily increased.

  Therefore, the present invention provides a power generation apparatus that can generate power by a water flow during navigation when generating power, and that does not become resistance during navigation when power generation is not performed, and a ship equipped with the same. Let it be an issue.

  Other problems of the present invention will become apparent from the following description.

  The above problems are solved by the following inventions.

1. In power generators installed on ships,
A rotating body that rotates in response to a water flow, and a generator that generates electric power by the rotation of the rotating body,
The rotating body and the generator are arranged in the hull of the ship, and when generating power during the navigation of the ship, at least the rotating body protrudes outside through an opening formed in the hull. A power generation apparatus having a configuration in which the position is moved from a position that is not in contact with water to a position where the water can be rotated in contact with water.

2 . 2. The power generation according to claim 1 , further comprising a cover that closes the opening when power generation is not performed and that protrudes into water when the power generation is performed and that protects at least a side of the rotation body. apparatus.

3 . In power generators installed on ships,
A rotating body that rotates in response to a water flow, and a generator that generates electric power by the rotation of the rotating body,
At least the rotating body is arranged outside the hull of the ship, and when generating power during the navigation of the ship, the rotating body is moved from a position above the draft to a position where the rotating body can rotate by contacting with water. power generation device characterized by having a configuration.

4 . 4. The power generator according to 1 , 2, or 3, wherein the generator is connected to a storage battery that stores the generated power.

5 . A ship provided with the power generator according to any one of 1 to 4 above.

6 . 6. The marine vessel according to claim 5 , further comprising a motor that is driven by the electric power generated by the power generation device to rotate a navigation screw.

7 . The ship according to claim 6 , further comprising an internal combustion engine that rotates the screw, and a switching unit that switches power for rotating the screw to either the motor or the internal combustion engine.

  According to the present invention, when power generation is required, power is generated by rotating a rotating body by a water flow at the time of navigation. When power generation is not performed, it does not come into contact with water and can reduce resistance during navigation. . Accordingly, it is possible to provide a power generation apparatus that can generate power by the water flow during navigation and that does not give resistance to the ship during navigation when power generation is not performed.

  In addition, according to the present invention, when power generation is required, power is generated by rotating a rotating body by a water flow at the time of navigation. When power generation is not performed, it does not come into contact with water and reduces resistance at the time of navigation. Can do. Accordingly, it is possible to provide a ship that can generate power by using a water flow during navigation using the power generation device, and that does not cause resistance during navigation when the power generation device does not generate power.

BRIEF DESCRIPTION OF THE DRAWINGS In the ship provided with the electric power generating apparatus which concerns on one Embodiment of this invention, (a) is principal part sectional drawing which shows the state which does not produce electric power, (b) is principal part sectional drawing which shows the state which produces electric power. The top view which shows the structure of the rotary body in a power generator with a partial cross section Sectional drawing of the principal part of the ship provided with the electric power generating apparatus which concerns on other embodiment of this invention. Sectional drawing of the principal part of the ship provided with the electric power generating apparatus which concerns on further another embodiment of this invention. Side view showing a specific embodiment of a ship equipped with a power generation device Side view showing another specific embodiment of a ship equipped with a power generation device Sectional drawing which shows the internal structure of the electric power generating apparatus which concerns on other embodiment. Sectional drawing of the principal part which shows an example of the ship which attached the power generator shown in FIG. 7 to the cover FIG. 1 is a cross-sectional view of an essential part showing an example of a ship with a cover attached to the power generator shown in FIG. In the ship provided with the electric power generating apparatus which concerns on other embodiment of this invention, (a) is a figure which shows the state which does not produce electric power, (b) is a figure which shows the state which produces electric power (A) is a side view of a ship provided with a power generator according to another embodiment of the present invention, (b) is a cross-sectional view of the main part thereof.

  Hereinafter, modes for carrying out the present invention will be described.

  1A and 1B are cross-sectional views of a main part of a ship provided with a power generation device according to an embodiment of the present invention, where FIG. 1A shows a state where power generation is not performed, and FIG. Indicates the state. Moreover, FIG. 2 is sectional drawing which shows an example of the structure of the rotary body in an electric power generating apparatus.

  In the figure, 1 is a hull of a ship, and 2 is a power generation device mounted on the ship.

  The hull 1 is provided with a storage portion 3 for storing the power generation device 2 and mounting it on the hull 1 at a position lower than the draft WL. The storage unit 3 is opened toward the water by an opening 11 formed in the hull 1.

  The opening 11 is provided with a cover 4 that can be opened and closed. The cover 4 is closed when the power generation is not performed as shown in FIG. 1A and closes the opening 11, and when the power generation is performed as shown in FIG. 11 opens upward with a pivot 11a provided at the upper edge as a center to open the inside of the storage portion 3 toward the outside of the ship. When the cover 4 is closed, the opening 11 is flush with the surface of the hull 1.

  The power generation device 2 includes a rotating body 21, a generator 22 that generates power by the rotation of the rotating body 21, and a storage battery 23 that is connected to the generator 22 and stores electric power generated by the generator 22. Yes.

  As shown in FIG. 2, the rotating body 21 shown in the present embodiment is composed of rotating blades in which a plurality of blades 21 a project radially, and is configured to be rotatable by a water flow received during navigation of the ship. The rotating body 21 has a rotating shaft 21b. The rotating shaft 21b is disposed so as to extend along the traveling direction of the hull 1 during navigation. The other end side of the rotating shaft 21b extends into the nacelle 24 formed in a streamlined manner, and is provided so as to be rotatable with respect to the nacelle 24. A bevel gear 21c is provided at the other end of the rotating shaft 21b.

  In the nacelle 24, the end of the rotating shaft 22a extending from the generator 22 is disposed so as to be orthogonal to the rotating shaft 21b of the rotating body 21. A bevel gear 22 b that meshes with a bevel gear 21 c provided on the rotation shaft 21 b of the rotating body 21 is provided at the end of the rotation shaft 22 a in the nacelle 24. Thereby, rotation of the rotary body 21 can be transmitted to the rotating shaft 22a of the generator 22 via the bevel gears 21c and 22b.

  The generator 22 generates power by rotating when the rotation of the rotating body 21 is transmitted through the rotating shaft 22a. The generated electric power is transmitted to and stored in the storage battery 23 mounted in the hull 1 by the cable 22d. The generator 22 has a waterproof structure by being covered with a waterproof cover 22c.

  A rotating shaft 22 a between the generator 22 and the nacelle 24 is covered with a shaft cover 25 that is integrally connected to the nacelle 24, and has a waterproof structure like the inside of the nacelle 24. The shaft cover 25 has a function of supporting the rotating body 21 by integrally connecting the nacelle 24 supporting the rotating body 21 and the generator 22 (waterproof cover 22c covering the generator 22). .

  A guide rail 5 extending in the outboard direction is provided in the storage portion 3, and a mounting base 6 is slidably provided on the guide rail 5. The generator 22 is fixed on the mounting base 6 so that the rotating body 21 side is in the outboard direction, and the power generation apparatus 2 including the rotating body 21 and the generator 22 is guided by sliding movement of the mounting base 6. It is configured to be able to move along the rail 5. Accordingly, at least the rotating body 21 of the rotating body 21 and the generator 22 is configured to be able to protrude from the opening 11 toward the water by the sliding movement of the mounting base 6.

  Before the power generation device 2 is mounted on the hull 1, the rotary body 21 and the generator 22 can be installed in a box-shaped container serving as the storage unit 3 in advance. In this case, the power generation device 2 in which the rotating body 21 and the generator 22 are housed in the housing portion 3 can be easily attached to the hull 1 simply by mounting a box-shaped container in the opening 11 of the hull 1. This is of course applicable to new ships, but is particularly suitable when applied to existing ships.

  Next, the operation of the power generation device 2 configured as described above will be described.

  During normal times when power generation is not performed, the entire power generation apparatus 2 is stored in the storage unit 3 (FIG. 1A). At this time, the cover 4 is closed. For this reason, since the power generation device 2 can navigate without protruding outside the hull 1 during navigation of the ship, the power generation device 2 does not become a resistance during navigation.

  Next, when performing power generation, the cover 4 is opened, and the mounting base 6 is moved along the guide rail 5 toward the outside of the hull 1 by a predetermined amount so that the rotating body 21 can rotate in contact with water. Project into the water outside the hull 1. At this time, only the rotating body 21 protrudes from the opening 11 to the outside, and the generator 22 remains in the storage portion 3 (FIG. 1B).

  The moving means of the mounting base 6 is not particularly limited. For example, the mounting base 6 may be pushed out or retracted by an expansion and contraction operation of a hydraulic cylinder (not shown), or the mounting base 6 may be guided by a rotating operation of the motor. This can be done by moving forward and backward along 5.

  Thus, by navigating in a state where the rotating body 21 of the power generation device 2 protrudes into the water outside the hull 1, the rotating body 21 rotates in response to a water flow generated during navigation. The rotation of the rotating body 21 is transmitted to the rotating shaft 22a via the rotating shaft 21b, the bevel gear 21c, and the bevel gear 22b, whereby the generator 22 rotates to generate power. The generated electric power is sent to the storage battery 23 via the cable 22d and charged.

  According to the power generation device 2, the power generation device 2 can be protruded outside the hull 1 only when power generation is required, so that it does not become a resistance during navigation when power generation is not performed. For this reason, a load is not given to the ship at the time of the navigation which does not generate electric power, and deterioration of fuel consumption (fuel consumption or electric power consumption) can be suppressed.

  Further, during power generation, only the rotating body 21 protrudes into the water, and the generator 22 is housed in the storage unit 3, so that the portion of the power generation device 2 that receives water resistance can be reduced. The resistance can be minimized.

  Further, when the power generation is not performed, the opening 11 is closed by the cover 4, so that the storage unit 3 does not become a resistance due to the water being caught in the navigation when the power generation is not performed.

  FIG. 3 is a cross-sectional view of a main part of a ship provided with a power generation device according to another embodiment of the present invention, and shows a state where power generation is performed. Since the site | part of the same code | symbol as FIG. 1 is a site | part of the same structure, those detailed description is abbreviate | omitted.

  In this embodiment, a stretchable waterproof cover 26 is provided across the shaft cover 25 that connects and supports the generator 22 and the rotating body 21 and the opening 11. For this reason, the generator 22 of the power generator 2 is provided with a waterproof structure by the waterproof cover 26. The waterproof cover 26 can be formed in a bellows shape with rubber or the like, for example, and can be shrunk compactly when stored without power generation.

  According to this, since the water does not enter the storage portion 3 by the waterproof cover 26, it is not necessary to provide a waterproof structure to the generator 22 itself. Moreover, since the opening part 11 is covered with the waterproof cover 26 when navigating while generating electricity, the storage part 3 does not involve a water flow.

  FIG. 4 is a cross-sectional view of a main part of a ship provided with a power generation device according to still another embodiment of the present invention, and shows a state where power generation is performed. The parts denoted by the same reference numerals as those in FIGS. 1 to 3 are parts having the same configuration, and detailed description thereof will be omitted.

  In this embodiment, the generator 22 in the power generation device 2 is disposed outside the storage unit 3 (inside the hull 1), and only the rotating body 21 side is stored in the storage unit 3. For this reason, the shaft cover 25 of the generator 22 penetrates the rear wall 3 a of the storage unit 3. A waterproof cover 26 is provided over the shaft cover 25 and the rear wall 3a, and covers a penetrating portion of the shaft cover 25. Thereby, the waterproof structure is given to the part which the axis | shaft cover 25 and the rear part wall 3a of the accommodating part 3 slide.

  According to this, since the accommodating part 3 should just have a volume which can accommodate the rotary body 21, the accommodating part 3 can be formed compactly. Thereby, there exists an advantage which can make small the degree which the accommodating part 3 entraps water at the time of power generation navigation. Further, there is an advantage that the generator 22 itself need not be waterproofed.

  FIG. 5 is a side view showing an embodiment of a ship equipped with the power generator according to the present invention. The parts denoted by the same reference numerals as those in FIGS. 1 to 3 are parts having the same configuration, and detailed description thereof will be omitted.

  In the figure, 100 is a ship, 101 is an engine (internal combustion engine), 102 is a power drive motor, 103 is a screw, and 104 is a clutch (switching means).

  This ship 100 is a so-called hybrid ship that sails by switching the power for rotating the screw 103 to either the engine 101 or the motor 102 by the clutch 104. The motor 102 is electrically connected to the storage battery 23 via the cable 102a, and is driven by the supply of electric power stored in the storage battery 23.

  When the ship 100 configured as described above travels by rotating the screw 103 by the engine 101, the rotating body 21 of the power generation device 2 is brought into contact with water from inside the storage unit 3 as shown in FIG. And projecting into water so that it can rotate. As a result, the rotating body 21 rotates in response to the water flow during navigation, and the generator 22 generates power. The generated power is charged into the storage battery 23 via the cable 22d.

  On the other hand, when the power for rotating the screw 103 by the clutch 104 is switched to the motor 102, the electric power from the storage battery 23 is supplied to the motor 102 via the cable 102a, and the motor 102 is driven to rotate the screw 103 for navigation. To do. At this time, as shown in FIG. 1A, the power generation device 2 is stored in the storage unit 3. As a result, resistance during navigation is reduced, wasteful power consumption is suppressed, and the cruising distance can be extended.

  Depending on whether the power source is the engine 101 or the motor 102, the storing operation and the projecting operation of the power generation device 2 may be arbitrarily performed by, for example, an operator (sailor) switch operation, In conjunction with the switching operation, it may be automatically performed so that it protrudes when switched to the engine 101 and retracts when switched to the motor 102.

  FIG. 6 shows another embodiment of the ship. Since the parts having the same reference numerals as those in FIG. 5 are parts having the same configuration, their detailed description is omitted.

  The ship 200 is a so-called electric propulsion ship that does not include an engine and travels by rotating the screw 103 only by the motor 102 driven by the electric power of the storage battery 23.

  In this case, the storing and protruding operations of the power generation device 2 may be arbitrarily performed by an operator's switch operation. However, as illustrated, a sensor 201 that monitors the charge amount of the storage battery 23 and a value of the sensor 201 It is preferable to provide a control unit 202 for controlling the movement of the mounting base 6 (see FIG. 1) based on the above. As a result, the power generator 2 is housed in the housing unit 3 during normal navigation, and the power consumption is reduced by reducing the resistance. The charge amount of the storage battery 23 is reduced and the value of the sensor 201 is reduced. When the value falls below a predetermined value, the control unit 202 detects it and automatically moves the mounting base 6 so that the rotating body 21 of the power generator 2 protrudes into the water so that it can rotate in contact with water. , Can generate electricity.

  Such a configuration of the sensor 201 and the control unit 202 can be similarly provided to the ship 100 shown in FIG.

  FIG. 7 is a cross-sectional view showing an internal structure of a power generator according to another embodiment.

  The power generation device 7 has a front end 71a and a rear end 71b that are open, and a rotating body 72 constituted by rotating blades is rotatable inside a cylindrical introduction tube 71 for guiding a water flow from the front end 71a to the inside. It is supported. The rotating shaft 72a of the rotating body 72 is integrated with the rotating shaft of the generator 73 provided coaxially. The rotating shaft 72a and the generator 73 are respectively supported by a plurality of support rods 71c protruding from the inner surface of the introduction cylinder 71.

  The rotating shaft 72a is rotatably supported on the central axis of the introducing cylinder 71 by a support rod 71c. Thereby, the rotating body 72 can receive and rotate the water flow which flows in from the front end 71a and flows out from the rear end 71b. The rotating shaft 72a is rotated by the rotation of the rotating body 72, the generator 73 is driven, and power generation is performed. The generated electric power is sent to the storage battery 23 (see FIG. 1) via the cable 73a.

  In the introduction cylinder 71, the front end 71a, which is the introduction side of the water flow, has a diameter that increases toward the front as compared with the rear end 71b side, so that the water flow can be smoothly introduced into the inside. Further, the rear end 71b side following the enlarged diameter portion is a small diameter portion, and is formed so that the flow rate can be increased when the water flow introduced from the front end 71a flows into the small diameter portion. Since the rotator 72 is disposed in the small diameter portion of the introduction tube 71, it can efficiently generate power by rotating in response to a water flow whose flow velocity is increased.

  In this power generator 7, the generator 73 is of course a water discharge structure by being covered with a waterproof cover.

  As shown in FIGS. 1 to 6, the power generation device 7 can be installed in the storage unit 3 by forming the storage unit 3 in the hull 1. Since the rotating body 72 and the generator 73 are accommodated in the introduction cylinder 71 coaxially, the depth of the accommodating part 3 can be made more compact.

  For example, as described above, the power generation device 7 may be linearly slid toward the outside using a guide rail, a hydraulic mechanism, or the like as described above.

  In addition, as shown in FIG. 8, the power generation device 7 can be attached to the inside of the cover 4 that opens and closes the storage unit 3, and the cover 4 can be made to protrude into the water by the opening operation.

  In addition, you may make it provide the introduction cylinder 71 in this electric power generating apparatus 7 in the rotary body 21 in the aspect shown in FIGS. By arranging the rotating body 21 shown in FIGS. 1 to 6 in the small diameter portion of the introduction cylinder 71, as described above, the rotating body 21 can be rotated by receiving a water flow whose flow velocity is increased, and can efficiently generate power. Will be able to.

  In the above description, the rotating bodies 21 and 72 of the power generation devices 2 and 7 have been illustrated as rotating blades in which a plurality of blades project radially, but the structure of the rotating body is rotated by receiving a water flow. If possible, the specific structure is not limited. Further, the number of rotating bodies provided in one power generation device 2, 7 is also arbitrary, and a plurality of rotating bodies may be provided for one generator 22, 73 as necessary.

  In the above description, the cover 4 that closes the storage portion 3 is exemplified as one that swings up and down around the pivot 11a at the top of the opening 11, but is not particularly limited thereto. For example, you may be comprised so that it may open and close by sliding in parallel back and forth or up and down along the surface of the hull 1.

  In addition, the cover 4 is not limited to the one attached to the hull 1 side, and may be provided so as to protrude into the water integrally with the rotating body during power generation. FIG. 8 shows an example thereof, in which the cover 4 is provided on the power generation device 7. In addition, for example, in the case of the power generation apparatus 2 shown in FIG. 1, the cover 4 is attached to the nacelle 24, and as shown in FIG. 9, when the power generation apparatus 2 protrudes, It can also be set as the structure which protrudes in the direction.

  According to this, when the rotating body 21 protrudes into water, the side of the rotating body 21 can be protected by the cover 4. For this reason, a protective cover or the like for preventing damage to the rotating body 21 can be omitted, and the structure can be simplified. The cover 4 in this case may be formed in a U shape so as to protect not only the side of the rotating body 21 but also the upper and lower sides, although not shown.

  In the aspect shown in FIG. 9, it is needless to say that the power generation device 7 shown in FIG. 7 can be applied instead of the power generation device 2.

  Furthermore, in the above description, although the aspect which provides only one storage battery 23 in the hull 1 for storing the electric power generated by the generators 22 and 73 is illustrated, a plurality of storage batteries 23 may be provided.

  Further, the storage battery 23 is not limited to a mode for driving the navigation motor 102, and may be a reserve storage battery. Such a spare storage battery can be used to supply power for electric equipment such as lighting or power for emergency power supply.

  Furthermore, although the electric power generation apparatus 2 and 7 demonstrated above showed what was arrange | positioned under draft WL, as the electric power generation apparatuses 2 and 7 are demonstrated below, a rotary body is water from a non-contact position. It can also be configured to move to a position where it can rotate in contact with.

  FIG. 10 shows an example of such an embodiment. Here, the power generation device 7 is used.

  On the side surface of the hull 1, a guide rail 12 extending from above the draft WL to below the water is provided. The upper end of the guide rail 12 may extend to the deck. The power generation device 7 is attached to the guide rail 12, can be slid up and down along the guide rail 12 by a drive motor (not shown), and can be stopped at any position on the guide rail 12. Is attached.

  FIG. 10A shows a state where power generation is not performed. At this time, the power generation device 7 is on the guide rail 12 above the draft WL and is stopped at a position not in contact with water. For this reason, the power generation device 7 does not receive water resistance during navigation. When power generation is performed, the power generation device 7 is moved downward along the guide rail 12 to a position where it can rotate by being in contact with water as shown in FIG. Soak in. Thereby, the electric power generating apparatus 7 can generate electric power by receiving the water flow at the time of navigation.

  According to this, since it is not necessary to provide the opening part 11 in the hull 1 and to install the power generators 2 and 7, it can apply suitably especially to an existing ship.

  Of course, the power generation device 2 can be used in place of the power generation device 7. In this case, at least the rotating body 21 of the power generator 2 may be provided so as to be movable up and down along the guide rail 12. The generator 22 and the storage battery 23 can be installed inside the hull 1 or on the deck.

  Further, in the rotating bodies 21 and 72 described above, the rotating shafts 21b and 72a are illustrated so as to extend along the traveling direction of the hull 1 during navigation. However, the traveling direction of the hull 1 during navigation is illustrated. It is also possible to use a rotating body in which a rotation axis is arranged so as to extend along a direction intersecting with the axis.

  FIG. 11 shows an example of the power generation device 8 that uses a water wheel type rotating body 81 as the rotating body. The rotation shaft 81a of the rotation shaft 81 is disposed so as to extend along a direction intersecting with the traveling direction of the hull 1 during navigation and projecting from the hull 1 to the outside of the ship. The rotating body 81 is housed in the housing 3 formed in the hull 1 when power generation is not performed, and the opening 11 formed in the hull 1 as shown in FIG. 11B when power generation is performed. It is comprised so that it may protrude out of board. The cover 4 is attached to the rotating body 81. In FIG. 11A, the cover 4 is partially cut away.

  The rotating body 81 is disposed at a height at which the lower half of the rotating shaft 81a is immersed in the lower water of the draft WL when protruding outside the ship. For this reason, the rotating body 81 projecting out of the ship receives the water flow during navigation, rotates as indicated by the arrow in FIG. 11A, and generates power by a generator (not shown) connected to the rotating shaft 81a. It can be performed. Further, when power generation is not performed, the rotating body 81 is not resisted by water during navigation because it is stored in the storage unit 3 and the opening 11 is closed by the cover 4. Moreover, since the opening part 11 is closed by the cover 4 at the time of storage, the storage part 3 does not become a resistance by entraining water at the time of navigation without generating power.

  In the present invention, the number of installed power generators 2, 7, 8 or rotating bodies 21, 72, 81 is arbitrary, and can be appropriately increased or decreased according to the size of the ship. For example, one or more units may be provided on each of the left and right sides of the hull 1. Further, when the rotating bodies 21 and 72 are configured to protrude from the inside of the hull 1 into the water, the rotating bodies 21 and 72 may be protruded from the bottom of the ship 1 into the water.

  Further, in FIG. 1, the storage battery 23 is provided in the hull 1 separately from the generator 22. However, the storage battery 23 may be installed in the storage unit 3 integrally with the generator 22. In this aspect, since all the components of the power generation device 2 can be stored in the storage portion 3 except for the cable 22d, it is more preferable when unitized.

1: Hull 11: Opening 11a: Pivot 12: Guide rail 2: Power generator 21: Rotating body 21a: Blade 21b: Rotating shaft 21c: Bevel gear 22: Generator 22a: Rotating shaft 22b: Bevel gear 22c: Waterproof cover 22d : Cable 23: Storage battery 24: Nacelle 25: Shaft cover 26: Waterproof cover 3: Storage part 3a: Rear wall 4: Cover 5: Guide rail 6: Mounting base 7: Power generation device 71: Introducing cylinder 71a: Front end 71b: Rear end 71c: Support rod 72: Rotating body 72a: Rotating shaft 73: Generator 73a: Cable 8: Power generator 81: Rotating body 81a: Rotating shaft 100, 200: Ship 101: Engine (internal combustion engine)
102: Motor 103: Screw 104: Clutch (switching means)
201: Sensor 202: Control part WL: Drafting

Claims (7)

In power generators installed on ships,
A rotating body that rotates in response to a water flow, and a generator that generates electric power by the rotation of the rotating body,
The rotating body and the generator are arranged in the hull of the ship, and when generating power during the navigation of the ship, at least the rotating body protrudes outside through an opening formed in the hull. A power generation apparatus having a configuration in which the position is moved from a position that is not in contact with water to a position where the water can be rotated in contact with water. Closing the opening when not performing power generation, with the projection of the rotating body when performing power generation projects in water according to claim 1, characterized in that it comprises a cover for protecting at least the side of the rotating body Power generation device. In power generators installed on ships,
A rotating body that rotates in response to a water flow, and a generator that generates electric power by the rotation of the rotating body,
At least the rotating body is arranged outside the hull of the ship, and when generating power during the navigation of the ship, the rotating body is moved from a position above the draft to a position where the rotating body can rotate by contacting with water. A power generator having a configuration. The power generator according to claim 1 , wherein the power generator is connected to a storage battery that stores the generated power. A ship provided with the power generator according to any one of claims 1 to 4 . The ship according to claim 5, further comprising a motor that is driven by the electric power generated by the power generation device to rotate a screw for navigation. The ship according to claim 6, further comprising an internal combustion engine that rotates the screw, and a switching unit that switches power for rotating the screw to either the motor or the internal combustion engine.

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