JPH11222188A - Tip voltex energy recovery device for marine vessel - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a tip voltex energy recovery device for a marine vessel, which can effectively recover tip voltexes generated by a propeller boss as energy. SOLUTION: In a marine vessel having a rudder 2 and a rudder post 4 disposed at a place behind the propulsion propeller 3 of a hull 1, an energy recovering propeller 5 capable of being rotated by tip voltexes caused by the propeller 3, is provided for a place behind the propulsion propeller 3, a power generator 11 is provided in the inside of the hull 1, and concurrently, the connection of the power generator 11 with the recovering propeller 5 by way of a rotation transmitting means 10 thereby allows energy generated by tip voltexes to be converted into the torque of the recovering propeller 5. Since electric power is obtained by the power generator 11 driven by the rotation, the energy of tip voltexes which has been wasted so far, can thereby be effectively recovered.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a technology for recovering chip vortex generated from propeller bosses of a hull as energy, and more particularly to a device for recovering chip vortex energy in a ship.

[0002]

2. Description of the Related Art A so-called one-axis, one-rudder boat equipped with one rudder at a position behind a one-axis propeller is usually equipped with a rudder on an extension of the propeller center line. , Supported by a rudder post provided at the stern.

According to the above configuration, a tip vortex (also referred to as a chip vortex) is generated from the propeller boss, and the tip vortex flows to the rudder side, and a part of the energy is recovered as thrust.

[0004]

As described above, although a part of the energy of the tip vortex generated from the propeller lab is recovered, there is a problem that most of the energy is not recovered and released and is not used effectively. .

SUMMARY OF THE INVENTION It is an object of the present invention to provide a chip vortex energy recovery apparatus for a ship capable of effectively recovering chip vortex generated from propeller labs as energy.

[0006]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, a tip vortex energy recovery device for a ship according to the present invention is provided in a ship in which a rudder and a rudder post are arranged at a position behind a propeller of a hull. At the position, an energy recovery propeller that rotates by receiving a chip vortex from the propeller is provided, and a power generator is provided in the hull, and the power generator and the energy recovery propeller are connected via rotation transmission means. is there.

[0007] The power generating apparatus includes a magnet body, a disc-shaped conductor rotating in the magnetic field of the magnet body, power take-out means capable of taking out power from the disc-shaped conductor, and power from the power take-out means. And a battery capable of storing electricity.

Further, the rotation transmitting means is provided on the rudder post in a horizontal direction and has a first shaft provided with an energy recovery propeller at one end, and a first bevel gear provided at the other end of the first shaft. A second shaft, which is provided on the rudder column in a vertical direction and whose upper end is operatively connected to the disc-shaped conductor of the power generator, is provided at the lower end of the second shaft, and meshes with the first bevel gear. And a second bevel gear.

According to each of the above-described structures, the energy recovery propeller rotates by receiving the tip vortex generated from the propeller boss, and transmits the torque to the power generator via the rotation transmission means to generate power, thereby generating energy. Most can be recovered.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a state in which a chip vortex energy recovery apparatus according to an embodiment of the present invention is applied to a hull of a one-shaft, one-rudder boat will be described with reference to FIGS.

That is, as shown in FIG.
The rudder 2 is fixed to a rudder column 4 at a position behind the uniaxial propelling propeller 3 and on an extension of the propeller center line.
Equipped via.

An energy recovery propeller 5 is disposed on the rudder post 4 so as to be opposed to the propulsion propeller 3 on an extension of the propeller center line so as to be opposed to the propulsion propeller 3. It is attached to one end of a first shaft 6 provided on the column 4 in the horizontal direction.

The first shaft 6 is supported by a bearing (not shown), and the recovery propeller 5 is rotatably provided. A first bevel gear 7 is provided at the other end of the first shaft 6 and in the rudder post 4, and a second bevel gear 8 meshing with the first bevel gear 7 is vertically inserted into the rudder post 4. It is provided at the lower end of the second shaft 9 provided. These first shaft 6, first
The rotation transmission means 10 including the bevel gear 7, the second bevel gear 8, and the second shaft 9 transmits the rotational force of the recovery propeller 5 to a power generation device described later.

That is, as shown in FIGS. 1 and 2,
The power generator 11 is provided in the hull 1. This power generator 1
1 is a third shaft 12 connected to the upper end of the second shaft 9; a rotating copper disk 13 which is a disk-shaped conductor provided in the third shaft 12 through the center thereof in the horizontal direction;
A part of the rotating copper disk 13 is slidably in contact with a U-shaped magnet body 14 provided so as to rotate and move in the magnetic field, and a peripheral portion of the rotating copper disk 13 and an upper part of the third shaft 12. And a battery (not shown) in which each of the current-collecting brushes 15, 15 is connected to a positive electrode and a negative electrode, respectively. The third shaft 12 and the second shaft 9 are supported by bearings 16 and 17 in the hull 1 and are rotatably provided.

According to the above configuration, the recovery propeller 5 is
The first bevel gear 7 and the first shaft 6 rotate by receiving the tip vortex generated from the propeller boss. This rotational force is transmitted to the rotating copper disk 13 and the third shaft 12 via the second bevel gear 8 and the second shaft 9, whereby the rotating copper disk 13 rotates in the magnetic field of the magnet body 14 and rotates. A current flows through the copper disk 13 by electromagnetic induction,
This is taken out of the current collecting brushes 15, 15 as electric power. Then, the extracted power is stored in a battery and used as needed. Therefore, most of the energy of the chip vortex that was conventionally discarded can be recovered,
It can contribute to energy saving.

The power e that can be taken out by the above-mentioned chip eddy energy recovery device is a DC voltage and can be expressed by the following equation. e (V) = π (n / 60) BR ^{2 In the} above formula, R is the radius (m) of the rotating copper disc 13, n is the number of rotations (rpm) of the rotating copper disc 13, B is the magnet body 14 represents the magnetic flux density (Tesla) of No. 14.

(However, the resistance loss of the rotating copper disk 13 is ignored.) For example, based on the above equation, n = 11200 rpm, B =
When the electric power e in the case of 1 Tesla and R = 0.5 m is obtained, the following is obtained.

E = π × (1200/60) × 1 × 0.5 ² ≒ 15.7 (V) By the way, as is clear from the above equation, the power e is
The magnetic flux density of the magnet body 14 is increased and the rotating copper disc 13
By increasing the diameter of the disk. Specifically, the power e can be increased by increasing the magnetic flux density by using a superconducting magnet for the magnet body 14. The power e increases as the rotational speed of the rotating copper disk 13, that is, the rotational speed of the energy recovery propeller 5 increases.

In the above-described configuration, a DC voltage is extracted as electric power. However, the DC voltage can be converted to an AC voltage using an inverter. In the above-described configuration, the third shaft 12 is provided at the upper end of the second shaft 9 and the rotating copper disk 13 is provided on the third shaft 12, but the second shaft 9 is extended into the hull 1 and extended. The rotating copper disk 13 may be provided on the second shaft.

[0020]

As described above, according to the present invention, an energy recovery propeller is provided at a position behind a propeller of a hull, a power generator is provided inside the hull, and the power generator and the energy recovery propeller are rotated. By connecting via the transmission means, the energy of the tip vortex is converted into the rotational force of the recovery propeller, and power is obtained by the power generator driven by this rotation. Can be collected effectively.

[Brief description of the drawings]

FIG. 1 is a main part side view of a hull showing a chip vortex energy recovery device according to an embodiment of the present invention.

FIG. 2 is a perspective view of a main part of the collection device.

[Explanation of symbols]

 Reference Signs List 1 hull 2 rudder 3 propeller 4 rudder column 5 energy recovery propeller 6 first shaft 7 first bevel gear 8 second bevel gear 9 second shaft 10 rotation transmitting means 11 power generator 13 rotating copper disk 14 magnet body 15 Current collecting brush

Claims (3)

[Claims] 1. A ship in which a rudder and a rudder post are arranged at a position behind a propeller of a hull, an energy recovery propeller which rotates by receiving a tip vortex from the propeller is provided at a position behind the propeller, and a power generator is installed in the hull. A device for recovering chip vortex energy in a ship, wherein the power generation device and the energy recovery propeller are connected via a rotation transmission means. 2. The power generator includes a magnet body, a disk-shaped conductor rotating in a magnetic field of the magnet body, power extraction means capable of extracting power from the disk-shaped conductor, and power from the power extraction means. The chip eddy energy recovery apparatus according to claim 1, further comprising a battery capable of storing electricity. 3. A first shaft provided on the rudder post in a horizontal direction and having an energy recovery propeller at one end, a first bevel gear provided at the other end of the first shaft, and a first transmission. A second shaft, which is provided on the rudder column in a vertical direction and whose upper end is operatively connected to the disc-shaped conductor of the power generator, is provided at the lower end of the second shaft, and meshes with the first bevel gear. 3. An apparatus for recovering chip vortex energy in a ship according to claim 1 or 2, comprising a second bevel gear.