KR101069810B1 - Self power generating apparatus for ship and ship including the same - Google Patents

Abstract

Disclosed are a ship self-powered apparatus and a ship having the same. In a ship self-powered apparatus installed on the hull adjacent to the propeller generating a propulsion force, the first end is rotatably coupled to the hull, the second end is reciprocated in accordance with the force of the fluid generated by the propeller Moving plate; A piston coupled to the second end of the moving plate and linearly reciprocating in association with the movement of the moving plate; And by providing a self-generating device for a ship comprising a generator for generating electricity through a linear reciprocating motion of the piston, it is possible to reduce the occurrence of vibration and noise in the hull can improve the quality of the ship. In addition, it is possible to generate electricity by using the force of the fluid can save energy.

Ship, energy

Description

Ship's self-power generation device and a ship having the same {SELF POWER GENERATING APPARATUS FOR SHIP AND SHIP INCLUDING THE SAME}

The present invention relates to a ship self-powered device and a ship having the same, and more particularly to a ship self-powered device and a ship having the same that can reduce the vibration and noise of the hull.

In general, propellers are used as propellers for ships. The propeller includes a plurality of wings. Each wing is arranged to have a constant angle of attack with respect to the fluid entering the propeller when the propeller rotates. When the propeller is rotated in the fluid, a pressure difference occurs between the surface from which the fluid is sucked and the surface from which the fluid is discharged, and lift force is generated on each wing. The generated lift acts as a driving force on the ship.

At this time, the seawater having a pressure difference is a cavitation (cavitation) is generated in the empty space without water at the end of the wing that the water pressure is greatly reduced. Cavitation is bound to occur as the propeller's rotation speed increases to satisfy the appropriate ship speed. In addition, vibration and noise are generated in the hull adjacent to the upper portion of the propeller due to the force of the fluid generated by the cavity phenomenon.

Embodiments of the present invention are to provide a self-powered apparatus for ships and a ship having the same that can disperse the cavitation delivered to the hull.

In addition, embodiments of the present invention is to provide a self-powered apparatus for ships that can use the force of the fluid other than the propulsion force generated by the propeller and a vessel having the same.

In order to achieve the above object, according to an aspect of the present invention, in the ship self-generating device installed on the hull so as to be adjacent to the propeller for generating a propulsion force, the first end is rotatably coupled to the hull, A moving plate having a second end reciprocated according to the force of the fluid generated by the propeller; A piston coupled to the second end of the moving plate and linearly reciprocating in association with the movement of the moving plate; And a generator for generating electricity through a linear reciprocating motion of the piston.

In order to achieve the above object, according to another aspect of the invention, the hull; A propeller installed on the hull and generating propulsion force; And a moving plate having a first end rotatably coupled to the hull and having a second end reciprocating in accordance with the force of the fluid generated by the propeller, coupled to the second end of the moving plate, There is provided a ship comprising a self-powered generator for a ship comprising a piston for linear reciprocation in conjunction with movement and a generator for generating electricity through linear reciprocation of the piston.

The moving plate may be installed at a position of the hull in which the force of the fluid is most transmitted by the propeller.

The moving plate may include carbon fiber or mild steel material.

At least one through hole may be formed in the moving plate to allow seawater to pass therethrough.

The maximum moving distance of the piston may be set such that the second end of the moving plate is spaced apart from the hull.

The piston may include a restoring member in which the movable plate moved according to the force of the fluid is returned to its original position.

The present invention may further include a transmission unit having a first end coupled with the piston, and a second end coupled with the generator, and converting a linear movement of the piston into a rotary movement.

The present invention, the cylinder for guiding the linear movement of the piston on the outside of the piston; And a bearing provided between the piston and the cylinder.

An end portion of the cylinder may further include a sealing member for sealing the inside of the cylinder.

According to an embodiment of the present invention, by dispersing the cavitation delivered to the hull in the ship's self-powered device can reduce the generation of vibration and noise in the hull can improve the quality of the ship.

In addition, according to an embodiment of the present invention, it is possible to generate electricity by using the force of the fluid can save energy.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a view schematically showing a vessel according to an embodiment of the present invention.

Referring to FIG. 1, the vessel 200 may include a hull 80, a propeller 90, and a self-powered apparatus 100.

The propeller 90 may be installed at the stern portion of the hull 80. The propeller 90 may rotate by receiving a driving force from a main engine (not shown) disposed inside the hull 80 through a propeller shaft (not shown). The propeller 90 rotates to generate lift and the generated lift may act as a driving force for propelling the vessel 200.

According to the exemplary embodiment of the present invention, the self-powered apparatus installed in the hull 80 adjacent to the propeller 90 may generate electricity by using the force of the fluid generated by the propeller 90. In addition, the self-generating device according to an embodiment of the present invention may receive a cavitation to reduce the vibration and noise generated in the hull (80).

Hereinafter, the self-generating device 100 receiving the force of the fluid moved to the upper portion of the propeller will be described.

In the present embodiment will be described in the embodiment that the self-power generator 100 is installed in the hull of the position where the force of the fluid generated by the propeller 90 is the greatest transfer.

For example, the position where the force of the fluid is most transmitted may be on an imaginary central axis formed perpendicular to the water surface as shown in FIG. 1. However, the installation position of the self-powered device 100 is not limited to this, of course.

2 and 3 are views showing the driving of the self-powered apparatus for ships according to an embodiment of the present invention, Figure 4 is a bottom surface showing a moving plate of the self-powered apparatus for ships according to an embodiment of the present invention It is also.

2 to 4, the self-generating device 100 includes a moving plate 110, a piston 120, and a generator 170. When the propeller 90 is rotated, the force of the fluid generated by the propeller 90 may be transmitted to the upper portion of the propeller 90. The moving plate 110 may reciprocate up and down in accordance with the force of the fluid delivered to the top. In addition, the piston 120 coupled to the moving plate 110 may linearly reciprocate up and down in association with the vertical reciprocating movement of the moving plate 110, and the generator 170 may use the kinetic energy of the piston 120. It can generate electricity.

The movable plate 110 is rotatably coupled to the hull 80 of the first end, and the second end reciprocates according to the force of the fluid generated by the propeller 90.

The moving plate 110 may be formed in a plate shape as shown in FIG. 4. The force of the fluid, such as seawater, which is moved to the top of the propeller 90 by the propeller 90, or the force of the fluid generated by the cavitation may hit the bottom surface of the moving plate 110. As such, the force of the fluid pushes the moving plate 110 upward, so that the second end of the moving plate 110 can rotate upward with the first end of the moving plate 110 as the central axis. As shown in FIG. 1, the moving plate 110 may be installed in the hull 80 at a position where the force of the fluid is most transmitted by the propeller 90. Accordingly, the movable plate 110 may receive the greatest force of the fluid delivered to the hull 80 to increase the electricity generation efficiency.

The moving plate 110 may include a material having ductility such as carbon fiber or mild steel. This prevents the fatigue load from accumulating in the virtual boundary region between the support end and the free end, thereby preventing the movable plate 110 from being broken. That is, the first end of the movable plate 110 becomes a support end fixed to the hull 80, and the second end of the movable plate 110 becomes a free end, and the free end reciprocates up and down with the support end as the central axis. I can move it. The flexible moving plate 110 may be improved in durability as the moving plate 110 is elongated without being destroyed by vertical movement. Here, the support end means an end fixed to one axis, and the free end means a movable end.

Since the moving plate 110 includes a material having ductility such as carbon fiber or mild steel, the moving plate 110 may be bent more than a predetermined amount, but the moving plate 110 may have a limit angle so as not to be bent excessively downward. This may be set, for example, through the position of the rotating body 163. The moving plate 110 moves at a distance between the rotating body 163 and the moving plate 110, and the moving point 110 is not broken by the fatigue load at the lowest point where the piston 120 can be positioned. Rotation body 163 may be installed in the hull 80 by setting to. The threshold value at which the moving plate 110 is damaged may vary depending on the material of the moving plate 110.

In addition, as illustrated in FIG. 4, the moving plate 110 may be provided with at least one through hole 111 in the moving plate 110. The through hole 111 may reduce the fatigue load generated in the moving plate 110 by allowing sea water to pass therethrough. In the present exemplary embodiment, six through holes 111 are formed, but the number of the through holes 111 may be added or subtracted according to the area of the moving plate 110 or the force of the fluid.

The piston 120 is coupled to the second end of the moving plate 110, and the piston 120 linearly reciprocates in association with the movement of the moving plate 110. As the moving plate 110 is pushed upward by the force of the fluid, the piston 120 coupled to the moving plate 110 may move upward in association with the movement of the moving plate 110. The moving plate 110 and the piston 120 may be coupled by welding, or alternatively, may be integrally formed.

Here, the maximum moving distance of the piston 120 moved to the hull 80 side may be set such that the second end of the moving plate 110 is spaced apart from the hull 80. This allows the movable plate 110 to always be spaced apart from the hull 80 even when the movable plate 110 is closest to the hull 80 side as shown in FIG. 3. It is possible to prevent the hull 80 from interfering.

And since the moving distance of the piston 120 is the same as the diameter size of the rotating body 163, it is possible to set the maximum moving distance of the piston 120 through the diameter size of the rotating body 163. In addition, the self-generating device 100 may be provided in plurality in the hull 80 is a matter of course.

And the piston 120 may include a restoring member so that the moving plate 110 moved according to the force of the fluid to the original position, the restoring member may be a weight (121). For example, the weight 121 may be provided integrally coupled to the upper portion of the piston 120. As another example, the restoring member may be a spring, and although not shown in the drawings, a first end of the spring is coupled to an upper portion of the second end of the moving plate 110, and a second end of the spring is coupled to a lower portion of the hull. Piston 120 may be disposed on the inner circumferential surface of the. The spring positioned between the second end of the movable plate 110 and the hull may move the movable plate 110 downward by the restoring force of the spring when the movable plate 110 is pushed upward to restore the position of the movable plate 110. Can be. On the contrary, the position may be restored by its own weight, which is the weight of the piston 120, and of course, various modifications thereof.

The outer side of the piston 120 may be provided with a cylinder 130 for guiding the linear movement of the piston 120, the outer side of the cylinder 130 may be coupled to the hull 80, the piston 120 and the cylinder The bearing 140 may be provided between the 130. An end portion of the cylinder 130 may include a sealing member 150 that seals the inside of the cylinder 130 and includes a material such as rubber.

A generator 170 for generating electricity through the piston 120 linearly reciprocating inside the cylinder 130 is installed in the hull 80. The generator 170 may receive the kinetic energy from the electric motor 160 converting the linear motion of the piston 120 into the rotary motion to generate electricity. The transmission unit 160 has a first end is coupled to the piston 120, the second end may be coupled to the generator 170.

The transmission unit 160 may include a rod 161 and a rotating body 163. The first end of the rod 161 may be coupled to the upper end of the piston 120, and the second end of the rod 161 may be coupled to the outside of the rotating body 163. And the central axis of the rotating body 163 may be connected to the generator 170.

This is, the first end of the rod 161 is coupled to the piston 120 to move up and down linearly in conjunction with the piston 120, the second end of the rod 161 is constrained to the rotating body 163 to rotate A circular motion is performed along the circumferential surface of 163 to rotate the rotating body 163. In addition, the kinetic energy according to the rotational force of the rotating body 163 may be converted into electrical energy through the generator 170.

That is, by causing the rotation of the rotating body 163 by the rod 161, when the motor shaft (not shown) connected to the rotating body 163 rotates and generates electricity, electricity is generated. The electricity generated in this way may be directly used as electrical energy required for the ship 200 or may be charged to a charging device (not shown) such as a battery and used when necessary.

As such, the self-power generation apparatus 100 according to the present embodiment may generate electricity by using the force of the fluid, thereby saving energy.

Operation of the self-generating device 100 as described above may be performed as an example. The propeller 90 rotates under the driving force from the main engine to move the ship. The propulsion force of the ship 200 is generated by the propeller 90, as well as the force of the fluid delivered to the self-power generator 100 adjacent to the propeller 90 pushes the moving plate 110 upward.

As the propeller 90 rotates, the force of the fluid transferred around the self-power generator 100 may have a period of a wave. In addition, a strong wave and a weak wave can be formed by the period of the wave. When the wave is strongly formed, the moving plate 110 moves upward and moves to the hull 80 side. When the wave is weakly formed, the moving plate 110 may move downward from the hull 80 by the weight of the piston 120 or by a restoring member such as a weight 121 or a spring.

As such, the moving plate 110 may move up and down in accordance with the force of the fluid having a wave period. The piston 120 linearly reciprocates up and down in conjunction with the movable plate 110 that vertically reciprocates. The rod 161 coupled to the upper end of the piston 120 may rotate along the circumferential surface of the rotating body 163 in association with the movement of the piston 120.

This is because the second end of the rod 161 rotates from the lower side of the rotating body 163 to the left position of the rotating body 163 as shown in FIG. 2 along the piston 120 moving upward. As shown in 3, it moves to the upper position of the rotor 163. And it is located below the rotor 163 again along the piston 120 to move to the lower side. As described above, the rod 161 is rotated along the circumferential surface of the rotating body 163 to rotate the motor shaft connected to the rotating body 163 to generate electricity.

Self-powered apparatus 100 and the ship 200 having the same according to the embodiment can reduce the cavitation transmitted to the hull 80 can reduce the vibration and noise generated in the hull 80, of course By using this, electricity can be generated and energy can be saved. 3 and 4 illustrate the piston 120, the electric motor 160, and the generator 170 exposed to the outside of the hull 80 for convenience of description, in contrast to the hull. Of course, it can be provided inside the (80).

The self-developing device for a ship and a vessel provided with the same according to an embodiment of the present invention have been described above, but the spirit of the present invention is not limited to the embodiments presented herein, and those skilled in the art to understand the spirit of the present invention Within the scope of the same idea, other embodiments may be easily proposed by adding, changing, deleting or adding components, but this will also fall within the scope of the present invention.

1 is a view schematically showing a vessel according to an embodiment of the present invention.

2 and 3 are views showing a state in which the self-powered apparatus for ships according to an embodiment of the present invention is driven.

Figure 4 is a bottom view showing a moving plate of the self-powered apparatus for ships according to an embodiment of the present invention.

<Description of the symbols for the main parts of the drawings>

80: hull 90: propeller

100: self-powered device for ships 110: moving plate

120: piston 130: cylinder

140: bearing 150: sealing member

160: electric drive 170: generator

Claims (10)

In the ship self-powered device is installed on the hull adjacent to the propeller generating a propulsion force, A movable plate having a first end rotatably coupled to the hull and having a second end reciprocated according to the force of the fluid generated by the propeller; A piston coupled to the second end of the moving plate and linearly reciprocating in association with the movement of the moving plate; And Ship's self-powered apparatus comprising a generator for generating electricity through a linear reciprocating motion of the piston. The method of claim 1, The moving plate is a self-powered apparatus for ships, characterized in that installed in the position of the hull in which the force of the fluid is most transmitted by the propeller. The method of claim 1, The moving plate is a ship self-powered device characterized in that it comprises a carbon fiber or mild steel material. The method of claim 1, At least one through hole is formed in the moving plate so that sea water can pass. The method of claim 1, And a maximum moving distance of the piston is set such that the second end of the moving plate is spaced apart from the hull. The method of claim 1, The piston is a self-powered apparatus for ships, characterized in that it comprises a restoring member to the original position of the moving plate moved in accordance with the force of the fluid. The method of claim 1, The first end is coupled to the piston, the second end is coupled to the generator, the ship self-powered apparatus further comprises a transmission unit for converting the linear movement of the piston into a rotational movement. The method of claim 1, A cylinder for guiding the linear movement of the piston outside the piston; And Ship's self-powered apparatus further comprises a bearing provided between the piston and the cylinder. The method of claim 8, The end of the cylinder is a marine self-powered device characterized in that it further comprises a sealing member for sealing the inside of the cylinder. hull; A propeller installed on the hull and generating propulsion force; And A ship comprising a self-powered generator for ship according to any one of claims 1 to 8 installed in the hull adjacent to the propeller.

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