KR20190005320A - Electric powered ship - Google Patents

Abstract

The present invention relates to an electrically driven ship, and more specifically, to an electrically driven ship which can utilize eco-friendly wind power, water power, and rays of the sun, instead of an engine using oil fuel as an energy source. The electrically driven ship includes an electrically driving unit for providing driving power to a rotor driving the ship. The electrically driving unit includes: an electric motor for providing driving power to rotate the rotor; a battery for supplying electricity to the electric motor; and a generator unit for charging the battery with electricity.

Description

[0001] Electric powered ship [0002]

The present invention relates to an electric powered ship, and more particularly, to an electric powered ship capable of utilizing eco-friendly wind power, water power, sunlight, etc. as an energy source instead of an existing petroleum fuel engine.

Generally, the power generating apparatus generates steam by heat generated during combustion of atomic energy or fossil fuel, generates power by its vapor pressure, and the power generating apparatus such as an internal combustion engine or an external combustion engine generates explosive force .

However, such a power generation system using fossil fuels is subject to a lot of restrictions in developed countries due to environmental problems.

On the other hand, a hydro turbine or a water turbine is considered to be an environmentally friendly device as a power generating device using fall of water, but it is limited to installing the device like a river dam, and thus is a technology that is not widely used.

In addition, a power generating device that uses solar, solar, wind or tidal power as an energy source has the advantage of using environmentally friendly energy. However, since it does not have economical efficiency and practical technology, I can not.

To solve this problem, Korean Patent Laid-Open No. 10-2001-0096812 discloses a water bottle; An upper road rail and a first lower road rail installed at upper and lower portions of the water tank, respectively; A second lower roadway connected to an axis of the lower roadway and installed outside the waterway; A belt connected to the upper road and the first lower road; A reservoir in which one side is open and the other side is closed; A piston provided below a bottom of a water reservoir existing beneath a downward direction of the air cylinders at a position where the closed surfaces of the air cylinders face downward; A drive roller provided directly below the piston; A belt connecting the second lower road and the driving road; A piston rod connected to a bottom surface of the piston and a point of one end of the circumference of the driving road rail; A first check valve installed to communicate with an upper surface of the piston and a bottom surface of a water reservoir; And a second check valve provided on a lower surface of the piston, wherein the upper check valve and the first lower check valve are spaced apart from the water can, .

However, since the air cylinders are formed in a fixed shape, there is a problem in that the power generation efficiency is low due to the large resistance during the descent.

In the meantime, propulsion engines using oil as a fuel have been mainly used for vessels such as fishing vessels. However, liquefied fuel gas, which is much cheaper than petroleum and is a clean energy source such as LNG (or LPG , DME) as a fuel is on the rise. In addition, since the price of LNG in summer is about 50% lower than that in winter, LNG can be bought and stored in a low price summer, which is a very favorable energy source in terms of price.

There are ME-GI engine or DFDE (Dual Fuel Diesel Electric) engine for marine engines that can use LNG (or LPG, DME) as fuel for propulsion or power generation. The ME-GI engine or DFDE (Dual Fuel Diesel Electric) engine compresses LNG (or LPG, DME), then injects and burns it, which is called a gas injection engine. In particular, the ME-GI engine compresses LNG (or LPG, DME) to a high pressure (150 to 600 bar) and then injects and burns it, which is called a high-pressure gas injection engine.

These gas injection engines use both petroleum (HFO or MDO) and fuel gas (eg LNG, LPG, DME) as fuels, while at low power (eg below 30% When the output is more than 30% of the maximum output, it operates with the structure that the output is obtained while using the oil and the fuel gas together. The operation method of such a gas injection engine is disclosed in Japanese Patent Registration No. 0396471.

Such a gas injection engine has a problem that liquefied fuel gas which is cheap and clean energy can not be used at a low output. In addition, ships are usually operated at low power near a port. When petroleum is used as an energy source at low output, a large amount of environmental pollutants such as SOx and NOx are emitted. In recent years, regulations on the emission of environmental pollutants near the ports have been increasingly tightened in each country.

Therefore, it is necessary to utilize eco-friendly energy such as wind power, hydropower, and solar energy for existing ships using petroleum engines.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a buoyant body having a pair of buoyant bodies which are connected to a rotary shaft disposed at front and rear sides of the buoyant body, And to provide a hydraulic power generating apparatus capable of generating electric power of the power generation apparatus.

It is another object of the present invention to provide a hydroelectric power generating apparatus in which a water receiving plate is formed at a height corresponding to the upper and lower sides of a connection shaft or a chain and a space is formed so that breakage is reduced and durability is improved even when water pressure is applied to the water receiving plate.

It is also an object of the present invention to provide a structure in which a sufficient amount of water is allowed to flow into the first and second buoyant body frames by providing the front and rear guide sections to increase the power generation efficiency and prevent the flow velocity or water pressure So that water pressure can be balanced by the front and rear water receiving portions.

It is also an object of the present invention to provide a method and apparatus for controlling a power generation scale of a first and a second buoyancy frame by connecting and separating a plurality of first and second buoyancy frame frames, Which can easily install a plurality of hydroelectric generators in a desired area in accordance with the design of the hydroelectric generator.

To this end, the hydroelectric power generating apparatus according to the present invention comprises first and second buoyant body frames arranged side by side in a horizontal direction; A buoyant body installed in each of the first and second buoyant body frames; A pair of forward chain gears respectively installed in front regions of the first and second buoyant body frames; A pair of rear chain gears respectively installed at rear regions of the first and second buoyant body frames; A pair of rotation shafts installed between the pair of front and rear chain gears; First and second chains connected to the front and rear chain gears; A plurality of water receiving portions including a plurality of connecting shafts connected to the first and second chains in the left and right direction, a water receiving frame installed on the connecting shaft, and a plurality of water receiving plates mounted on the water receiving frame; And a generator connected to at least one of the front and rear rotary shafts, wherein the first and second buoyant body frames are fixed to the bottom of any one of a river and a sea, and a water pressure is applied to the water receiving plate by a flow of water, And power is generated by rotating the first and second chains.

In addition, in at least one of the front and rear ends of the first and second buoyant body frames of the hydro-electric power generating apparatus according to the present invention, the water flows into the first and second buoyant body frames in a direction in which the water flows in, And the front and rear guide portions are formed to extend from the lower surface of the buoyant body to 1m to 4m below the bottom surface of the buoyant body.

When the front and rear guide portions of the hydraulic power generating apparatus according to the present invention are both formed, a central guide portion is further provided at a central region of the first and second buoyant body frames, and the central guide portion is provided to correspond to the front and rear guide portions And the first and second central guide portions extend from 1m to 4m below the lower surface of the buoyant body.

Further, the first and second buoyant body frames of the hydro-power generator according to the present invention are installed in the sea, and power generation is performed even when the flow of water is changed due to tide and ebb.

In addition, the water receiving unit of the hydro-electric power generating apparatus according to the present invention may further include a space portion in which the plurality of water receiving plates are spaced apart from each other.

In addition, the space portion formed in the water receiving portion adjacent to the front and rear of the hydroelectric power generating device according to the present invention is formed at different positions.

Further, the water-receiving frame of the hydro-electric power generating apparatus according to the present invention is characterized by comprising upper and lower water-receiving frames which are vertically symmetrical with respect to the connecting shaft.

Further, in the hydroelectric power generating apparatus according to the present invention, fixing holes are formed on both front and rear sides of the water receiving frame, and are fixed by a plurality of wires, one end of which is connected to the fixing hole, And is connected to any one of them.

According to the electric powered ship according to the present invention, it is possible to utilize environmentally friendly wind power, water power, solar light, etc. as an energy source instead of an existing petroleum fuel engine.

1 is a schematic view showing the structure of an electric powered ship according to the present invention.
Fig. 2 is a block diagram showing a main configuration of the electric drive unit of the present invention.
3 is a block diagram showing a main configuration of the electric drive unit and the auxiliary engine of the present invention.
4 is a perspective view of a hydroelectric power generating apparatus according to an embodiment of the present invention, in which a water receiving plate is omitted from a water receiving portion.
5 is a longitudinal sectional view showing an embodiment of a hydroelectric power generating apparatus according to the present invention.
Fig. 6 is a side view showing a state in which the water receptacle of the present invention operates.
7A is a front view showing the structure of the water receiving portion of the present invention, Fig. 7B is a perspective view showing the water receptacle portion of the present invention connected to the chain, Fig. 7C is a side view of Fig. 7A, In which a fixing plate is installed.
8A and 8B are a plan view and a side view schematically showing a center guide formed on the buoyancy body frame of the present invention.

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

In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear. In addition, the terms described below are defined in consideration of the functions of the present invention, and these may vary depending on the intention of the user, the operator, or the precedent. Therefore, the definition should be based on the contents throughout this specification.

Fig. 1 is a schematic view showing a structure of an electric powered ship according to the present invention, and Fig. 2 is a block diagram showing a main structure of an electric drive part of the present invention.

1 and 2, an electric powered ship 10 according to the present invention includes an electric drive unit 10a that provides power to a rotating body 15 that propels a ship.

The electric drive unit 10a includes an electric motor 11, a battery 12, and a power generation unit 100.

The electric motor (11) serves to supply power for rotating the rotating body (15).

The battery 12 charges electricity through the electricity generated by the power generation unit 100 and supplies electricity to the electric motor 11.

The power generator 100 serves to charge the battery 12 with electricity.

The power generation unit 100 may be any one of hydroelectric power generation apparatus 100a, windmill 100b, and solar panel 100c so as to generate power using any one of hydro, wind, can do.

The hydroelectric power generating apparatus 100a, the windmill 100b, and the solar panel 100c are advantageous in that the windmill and the solar panel can generate electricity while being fixed on the vessel. However, On the other hand, hydroelectric power plants are capable of producing a lot of electricity while floating on the sea when the ship is at anchor.

These power generation units 100 may be installed in two or more types together to obtain a sufficient amount of electricity necessary for ship operation.

As described above, the power generation unit 100 utilizes wind power, hydro power, and solar light, which is environmentally friendly. However, a supplementary power source is required due to the nature of the sea where there is no special charging facility unlike the ground.

3 is a block diagram showing a main configuration of the electric drive unit and the auxiliary engine of the present invention.

Referring to FIG. 3, in the present invention, the auxiliary engine 13 may further include gasoline or light oil as a raw material.

The auxiliary engine 13 may be connected to the rotating body 15 in series or in parallel with the electric driving unit 10a to provide power.

As described above, the auxiliary engine 13 may be selectively driven when the power generation unit 100 fails to generate electricity or when the battery 12 is discharged.

The rotating body 15 is directly connected to the main electric power motor 11 and the auxiliary engine 13 which is auxiliary power is connected to the electric motor 11. [

A clutch 13a is provided between the electric motor 11 and the auxiliary engine 13 so that the auxiliary engine 13 and the electric motor 11 can be connected or disconnected.

Hereinafter, embodiments in which the power generation portion of the present invention is a hydroelectric power generation device will be described with reference to the accompanying drawings.

4 to 8, the hydroelectric power generating apparatus 100a according to the present invention is constructed such that a buoyant body floats at a place where water flows, such as a river or sea, The first and second buoyant body frames 110 and 110a, the buoyant body 115, the front and rear chain gears 120a, the rotating shafts 125 and 125a, Two chains 130 and 130a, a water receiving unit 150, and a generator 180. [

Specifically, the hydro-power generator 100a according to the present invention includes first and second buoyant body frames 110 and 110a arranged side by side in a horizontal direction, and a buoyant body 110a and 110b installed in the first and second buoyant body frames 110 and 110a, A pair of front chain gears 120 installed at front regions of the first and second buoyant body frames 110 and 110a, A pair of rotation shafts 125 and 125a provided between the pair of front and rear chain gears 120a and a pair of front and rear chain gears 120a and 120b, And a generator 180 connected to at least one of the front and rear rotating shafts 125 and 125a. The first and second chains 130 and 130a are connected to the first and second chains 130 and 130a.

Hereinafter, each configuration and operation of the hydraulic power generating apparatus according to the present invention will be described in detail.

The first and second buoyant body frames 110 and 110a serve to support the buoyant body 115 and are disposed laterally to form a pair. The first and second buoyant body frames 110 and 110a, And fixed by the fixing wire 101 and the fixing wire 105.

The rotating shafts 125 and 125a, the generator 180, and the like are installed on the first and second buoyant body frames 110 and 110a.

The rotating shafts 125 and 125a are installed in the front and rear regions of the first and second buoyant body frames 110 and 110a and the pair of front chain gears 120 are disposed at both ends of the pair of rotating shafts 125 and 125a, And a rear chain gear 120a.

The first and second chains 130 and 130a are connected to the front chain gear 120 and the rear chain gear 120a provided in the first and second buoyant body frames 110 and 110a, respectively.

The first and second chains 130 and 130a rotate due to the force of the water receiving part 150 being pushed by the flow of water. The rotation of the first and second chains 130 and 130a causes the rotation axes 125 and 125a The generator 180 is driven.

That is, the generator 180 is connected to the rotating shafts 125 and 125a to convert the rotational force transmitted from the rotating shafts 125 and 125a into electric energy. The generator 180 includes a permanent magnet (not shown) (Not shown), and vice versa, as well as in the case of rotating in the opposite direction as well. Therefore, when the water is installed in the sea and the direction of the water is changed by the algae in the forward and reverse directions, it is possible to generate for both directions of rotation. However, since such a generator corresponds to a known configuration, detailed description thereof will be omitted.

The water receiving portion 150 provides power for rotating the chains 130 and 130a to the chain gears 120 and 120a while being pushed according to the flow of the water by the flow of water or water pressure. The first and second chains 130 and 130a, In the circumferential direction.

Each water receiving unit 150 has a bar-shaped connecting shaft 151 whose one end is fixed to the first chain 130 and the other end is fixed to the second chain 130a, Shaped water receiving frame 153 installed symmetrically and a plurality of water receiving plates 155 arranged in the water receiving frame 153 so as to be spaced apart from each other.

The plurality of water receiving plates 155 are spaced apart from each other and move to a water receiving plate 155 having a water flow disposed rearward through a space portion 156 spaced apart from each water receiving plate 155, It is preferable that the plate 155 is constructed so as to be subjected to a uniform water pressure.

If the space portion 156 is not provided, the water pressure applied to the water receiving plate 155 disposed at the rear of the water receiving plate 155 disposed in front of the water receiving plate 155 is significantly reduced, , Excessive water pressure is applied to any of the water receiving plates (155), and the probability of breakage is increased.

And the water receiver frame 153 may include upper and lower water receiver frames 153 symmetrical with respect to the connecting shaft 151 in the vertical direction.

The water receiving frame 153 must be durable and generate power even when the flow velocity is constant or fluctuating like a bird. The upper and lower water receiving frames 153 may be formed of any one of It is preferable that the upper and lower water-receiving frames 153 are formed to have the same length in order to prevent the water and the water-receiving frames 153 from being damaged.

It is preferable that the water receiver frame 153 is formed with fixing holes 157 on both the front and rear sides thereof and can be fixed by a plurality of wires 158 and 158a to withstand water pressure.

One end of the wire 158 may be connected to the fixing hole 157 and the other end may be connected to one of the first and second chains 130 and 130a.

On the other hand, at least one of the front and rear ends of the first and second buoyant body frames 110 and 110a is opened in a direction in which water flows in order to increase the amount of water flowing between the first and second buoyant body frames 110 and 110a At least one of the front and rear guide portions 170a of the structure is formed.

For example, when the water flows in one direction or from the front to the back, such as a river, the front guide unit 170 forms a slope that widens the front and narrows the rear. More specifically, the pair of front guide portions 170 have a structure in which the front portion of the front guide portion 170 into which the water is introduced as a whole is opened.

In the case where the rear guide part 170a is formed together with the front guide part 170, it is applied when installing the hydroelectric power generating device 100a at a place where algae such as the sea are generated. When the flow of water is changed, 170 and the rear guide part 170a, respectively, so that the power generation efficiency can be increased. As described above, in the generator 180, electricity is generated in accordance with the flow of water in both directions.

The center guide unit 175 may include first and second central guide units 175a and 175b corresponding to the front and rear guide units 170a, ). In other words, the first and second guide portions 175a and 175b may have a shape of '∧' or '∨'.

In order to utilize the water flow more efficiently, it is important to form the guide portions 175a and 175b to a sufficient depth to secure an inflow amount of water for power generation. Do.

However, the flow of water flowing in from the front is reduced as the water flows backward. The central guide portions 175a and 175b serve to maintain the water pressure drop. However, as shown in FIGS. 8A and 8B, Water can be intensively supplied even in the central region of the first and second buoyant body frames 110 and 110a, and uniform water pressure can be applied to the water receiving plate 155 arranged forward and rearward, thereby further improving the power generation efficiency.

For the same reason, it is preferable that the space portions 156 formed in the water receiving portion 150 adjacent to the front and rear are formed at different positions. This is because the flow velocity or the water pressure applied to the water receiving plate 155 disposed at the rear is more efficiently This can be prevented.

In the case where the first and second buoyant body frames 110 and 110a to the buoyant body 115 are formed to have a height of 1 to 2 m, the front and rear guide portions 170a and the center guide portions 175a and 175b have a length of 0.5 to 1 m , And each guide portion is preferably extended from the lower surface of the buoyant body to 1 to 4 m, more preferably 1 to 2 m or less.

Each of the guide portions 170, 170a, 175a, and 175b may be formed of a metal plate or the like, but is not limited thereto, and may be made of wood, fabric, plastic, or the like.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, It is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and similarities. Accordingly, the scope of the present invention should be construed as being limited to the embodiments described, and it is intended that the scope of the present invention encompasses not only the following claims, but also equivalents thereto.

10: Electric powered ship
10a: electric driving part
11: Electric motor
12: Battery
13: Auxiliary engine
13a: clutch
14: Rotary bar
15: rotating body
100:
100a: Hydropower
100b: windmill
100c: Solar panel
100a: hydroelectric power generation apparatus 101: fixed anchor
103: connecting wire 110: first buoyancy frame
110a: second buoyant body frame 115: buoyant body
120: front chain gear 120a: rear chain gear
125: front rotating shaft 125a: rear rotating shaft
130: first chain 130a: second chain
150: water receiver 151:
153: Water receiving frame 155: Water receiving plate
156: Space part 157: Fixed hole
158: wire 170: front guide portion
170a: rear guide portion 175: central guide portion
175a, 175b: first and second central guide portions
180: generator

Claims (5)

And an electric drive unit for supplying power to the rotating body for propelling the ship,
The electric drive unit includes:
An electric motor for providing power for rotating the rotating body;
A battery for supplying electricity to the electric motor;
And a power generator for charging the battery with electricity. The method according to claim 1,
The power generation unit includes:
Wherein the wind power generator is at least one of a windmill, a hydroelectric power generator, and a solar panel so as to generate electricity using any one of wind, hydraulic, and solar energy. The method according to claim 1,
Further comprising: an auxiliary engine using gasoline or light oil as a raw material,
Wherein the auxiliary engine is connected to the rotating body in series or in parallel with the electric driving unit to provide power. The method according to claim 1,
Wherein the auxiliary engine is selectively driven when the generator fails to generate electricity or when the battery is discharged. The method of claim 3,
The hydro-power generator is located next to the ship when the ship is moored on the coast,
First and second buoyant body frames arranged side by side;
A buoyant body installed in each of the first and second buoyant body frames;
A pair of forward chain gears respectively installed in front regions of the first and second buoyant body frames;
A pair of rear chain gears respectively installed at rear regions of the first and second buoyant body frames;
A pair of rotation shafts installed between the pair of front and rear chain gears;
First and second chains connected to the front and rear chain gears;
A tubular connecting shaft having one end fixed to the first chain and the other end fixed to the second chain; a rectangular frame-shaped water-receptacle frame vertically symmetrical to the connection shaft; A plurality of water receiving portions including a plate-shaped water receiving plate disposed at predetermined intervals along the circumferential direction of the first and second chains;
And a generator connected to at least one of the front and rear rotary shafts.

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