KR102505793B1 - Floating wave generating system with brake using buoyancy and method for constructing this same - Google Patents

Abstract

The present invention relates to a floating wave power generation device and installation method including a brake using buoyancy, and an object of the present invention is to install and operate at low cost without being affected by tidal cars, currents, and high waves.
The floating wave power generation device including a brake using buoyancy according to the present invention includes a buoyancy body 10 that floats on the surface of the water and rises or falls according to the water level; A generator 30 generating electricity through the rising and falling of the buoyancy body; It includes a brake means for supporting the buoyancy body, and the brake means is installed in the water to support the rise and fall of the buoyancy body in a state in which it is fixed without rising and falling, while the fixed position is adjusted by adjusting the buoyancy. It is a buoyancy brake 20 that becomes. The buoyancy brake includes a brake plate 21 and a buoyancy body installed on the brake plate and maintaining the brake plate at a predetermined depth from the sea level through buoyancy, and the buoyancy body is connected to the brake plate and A floating float 22 and a buoyancy tube 24 installed on the brake plate.

Description

Floating wave power generation device and installation method including brake using buoyancy

The present invention relates to a wave power generation device, and more particularly, to a floating wave power including a brake using buoyancy capable of accurately controlling the up and down motion of a buoyancy body according to a change in wave height without using a seabed foundation or a large floating ship. It relates to a power generation device and an installation method.

This section provides background information related to the subject matter of this application and is not necessarily prior art.

Wave power generation is a technology that converts wave energy into electrical energy, and there are movable object type, frequency column type, and overwave/overflow type.

A representative example of a movable object-type wave power generator is a method in which a rope is connected to a buoyant body to operate a piston to form hydraulic pressure and this hydraulic pressure drives a generator to produce electricity, or a buoyant body is moved up and down by waves using a lever point. There were many ways to move the crankshaft from the rotating shaft or to drive the generator.

The oscillating water column type is a method of generating electricity by generating air or water flow within a water column from the motion of waves that vibrate periodically and obtaining energy from it. In general, it refers to a form of power generation by rotating a generator turbine using air movement according to a change in water level within several weeks.

Overwave or overflow type wave power generation device that forms a slope in the direction of wave propagation, fills the space overturned by seawater by waves to form a drop with the sea level, and then rotates the generator turbine using the drop there is

Since the wave power generation device is directly exposed to the force repeatedly applied by the waves, durability must be secured and technical and functional requirements must be met to withstand the direct impact of the waves or the contact impact of the components while maintaining the function. there is. For this reason, the frequency column, which does not directly contact the waves and the drive unit, is leading the way in technology development.

On the other hand, the wave power generation device requires foundation work on the deep seabed due to these problems, and there is another serious problem in that the input construction cost is excessive, making it difficult to match the economic feasibility.

Waves generally have the advantage of being able to increase the amount of power generation because the wave height is high in proportion to the depth to the sea floor in the case of open sea, but installation is inevitably limited on the open sea side where the wave height is high due to the problem of construction cost. There were problems, and the test installation was bound to be difficult. As a result, wave power devices focused on small-scale test facilities had no choice but to be installed in locations close to land in the inland sea, and as a result, expansion to large-scale capacity was bound to be limited.

Korean Patent Registration No. 10-1680472 discloses a stationary unit positioned while maintaining a constant water depth in water; and a movable unit movably coupled to the stationary unit, wherein the stationary unit includes a foundation and first and second power generation units installed on the foundation, wherein the first power generation unit includes the foundation. A first housing extending upward in a columnar shape from the first housing, a first generator accommodated inside the first housing while being sealed from the outside by the first housing, and a rotation of the first generator located outside the first housing. It has a first pinion gear coupled to the shaft, and the second power generation unit is sealed with the outside by the second housing extending upward from the base in a columnar shape, and the second housing is accommodated inside the second housing. a second generator, and a second pinion gear located outside the second housing and coupled to a rotating shaft of the second generator, wherein the moving unit includes a buoyancy body that moves up and down by wave force, and A rack gear extending downward and located between the two housings and having first and second teeth respectively engaged with the two pinion gears, and a weight coupled to the lower end of the rack gear and located between the two housings And a part of the outer circumference of the weight is accommodated on the outer surface of each of the first housing and the second housing, so that the weight

It is a wave power generation device in which the first and second guide grooves that guide movement are formed by extending in the vertical direction. Since the stop unit is installed through a heavy object, position control is impossible, and of course, the stop unit can be replaced by replacing the connecting means. It is possible to change the position of the ship, but in order to do so, it is very inconvenient to work because the heavy object settled on the seabed must be lifted to the sea and replaced or replaced by underwater work. In addition, when the heavy object, the stationary unit, and the moving unit are integrally installed, it is difficult to install because the weight and volume are too large.

Republic of Korea Patent Registration No. 10-1680472

The present invention is intended to solve the problems described above, and is a floating type including a brake using buoyancy that can be installed and operated at low cost without being affected by tidal differences, currents, and high waves. The purpose is to provide a wave power plant and installation method.

A floating wave power generator including a brake using buoyancy according to the present invention includes a buoyancy body that floats on the water surface and rises or falls according to the water level; a generator that generates power through the rising and falling of the buoyancy body; And a brake means for supporting the buoyancy body, wherein the brake means is installed in the water and supports the rise and fall of the buoyancy body in a state of maintaining a fixed depth without rising and falling based on the sea level, while buoyancy It is characterized in that it is a buoyancy type brake in which the fixed position is adjusted through the adjustment of

In the present invention, the buoyancy-type brake is characterized in that it includes a brake plate and a float installed on the brake plate and maintaining the brake plate at a predetermined depth from the sea level through buoyancy.

The generator of the present invention can be applied in various forms such as a piston pump generator, a rack and pinion generator, and a seawater pump generator.

According to the floating wave power generation device and installation method including a brake using buoyancy according to the present invention, there are the following effects.

The buoyancy brake that supports the buoyant body floating on the water can change the underwater installation position through buoyancy, and in particular, buoyancy can be adjusted at sea without underwater work or lifting the structure to the sea, so it is very easy to operate and works underwater. It is possible to prevent workers' accidents caused by this, and there is an effect of reducing costs by not using offshore cranes.

In addition, even when there is a large change in the difference between tide and tide (for example, 8 m), there is an effect of enabling power generation while maintaining a constant installation depth at all times based on sea level.

In addition, the buoyancy type brake generates a large resistance when moving up and down in water due to its large surface area, so that the buoyancy body maintains its installation position without movement of descent and elevation during the rise and fall of the buoyancy body, so power generation efficiency can be increased.

In addition, even if the buoyancy brake or the buoyancy body tilts beyond the design value, continuous power generation is possible, so that the power generation efficiency can be increased and damage can be prevented.

In addition, when the distance between the buoyancy body and the buoyancy brake is exceeded due to a large wave exceeding the design driving wave height, there is an effect of preventing damage by inducing a forced flow of seawater through pressure relief.

1 is a perspective view of a floating wave power generator including a brake using buoyancy according to Example 1 of the present invention.
Figure 2 is a front view of a floating wave power generation device including a brake using buoyancy according to Example 1 of the present invention.
3 is a front view showing an example in which two buoyancy bodies are applied to a floating wave power generator including a brake using buoyancy according to Example 1 of the present invention.
4 is a plan view showing an example in which buoys applied to a floating wave power generator including a brake using buoyancy according to Example 1 of the present invention are connected.
5 is a front view showing an example in which floating wave power generators including brakes using buoyancy according to Example 1 of the present invention are connected.
Figure 6 is a plan view showing a power-generating prop and guide roller applied to a floating wave power generator including a brake using buoyancy according to Example 1 of the present invention.
7 and 8 are examples of installation of a pressure release plate applied to a floating wave power generator including a brake using buoyancy according to Example 1 of the present invention, respectively.
9 is an exemplary view in which a power generation support applied to a floating wave power generator including a brake using buoyancy according to Example 1 of the present invention is installed through a suspension.
Figure 10 is a front view showing the configuration of a floating wave power generation device including a brake using buoyancy according to Example 2 of the present invention.
Figure 11a is a view showing a tilting means applied to a floating wave power generator including a brake using buoyancy according to Example 2 of the present invention.
Figure 11b is a view showing another tilting example applied to a floating wave power generator including a brake using buoyancy according to Example 2 of the present invention.
Figure 12 is a front view showing the configuration of a floating wave power generation device including a brake using buoyancy according to a third embodiment of the present invention.
Figure 13 is a front view showing the configuration of a floating wave power generation device including a brake using buoyancy according to Example 4 of the present invention.
14 is an exemplary installation view of a buffer bumper applied to a floating wave power generator including a brake using buoyancy according to the present invention.
15 is an exemplary view of installing a load weight on a brake plate in a floating wave power generation device including a brake using buoyancy according to the present invention.
16 is an exemplary view of a brake plate applied in three stages to a floating wave power generation device including a brake using buoyancy according to the present invention.
17 and 18 are views showing an angle-adjustable connection between a buoyancy body and a rod applied to a floating wave power generator including a brake using buoyancy according to the present invention, respectively.
19 is an exemplary view in which a seawater pump applied to a floating wave power generator including a brake using buoyancy according to the present invention is connected to an aberration generator on the ground.
20 is an exemplary view of fixing a buoyancy body and a seawater pump applied to a floating wave power generator including a brake using buoyancy according to the present invention.

In the following description of the present invention, if it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the subject matter of the present invention, the detailed description will be omitted. In addition, terms to be described later are terms defined in consideration of functions in the present invention, which may vary according to the intention or custom of a user or operator. Therefore, the definition should be made based on the contents throughout this specification.

<Example 1>

As shown in FIGS. 1 and 2, the floating wave power generator 100 including a brake using buoyancy according to the present embodiment is a buoyancy body 10 that floats on the water surface and rises or falls according to the level of the waves , It includes a buoyancy brake 20 that maintains a fixed state in the water and supports the buoyancy body 10, and a generator 30 that generates power through the rising and falling of the buoyancy body 10, and the specific configuration is as follows. .

1. Floating body (10).

Buoyancy is defined as the force that pushes an object upward as much as the pressure difference in the direction of gravity acting on the upper and lower surfaces of a specific object submerged in a fluid. According to Archimedes' principle, the buoyant force exerted on an object is equal to the weight of the fluid displaced by the object, and the magnitude of the buoyant force is the weight of the fluid equal to the volume occupied by the object in the fluid. That is, when the buoyancy body 10 is installed on the sea level, it can be said that there is buoyancy as much as the volume of the buoyancy body 10 submerged in the sea level.

The buoyancy body 10 has a large area in contact with the sea surface to ensure sufficient buoyancy, and when viewed from a plane, it is possible to have a circular shape and a square shape. A hemispherical portion convex toward the side may be included. When the buoyancy body 10 is in a three-dimensional form, it is possible to have both empty and filled interiors.

The buoyancy body 10 ascends and descends according to the change of waves, and a weight body may be configured to assist in descending. The weight body uses a heavy material such as a metal body or concrete and is installed on the bottom surface of the buoyancy body 10.

The generator 20 must be installed in the buoyancy body 10 to drive the generator using the lifting energy, and the upper deck surface is flat for the stable installation of the generator 20 and auxiliary facilities and the safe movement of workers. may be configured.

The buoyancy body 10 must be connected to the buoyancy brake 20 to enable a certain operating type of lifting or lowering drive according to changes in waves, and for this purpose, the central portion includes a support connection hole 11 penetrating vertically. .

The holding connection hole 11 is clarified through the description of the buoyancy brake 20.

When two or more buoyancy bodies 10 are installed and operated together, a buffer bumper 12 is included on the circumference to prevent damage due to collision between buoyancy bodies or to prevent damage due to collision with a water structure. .

The buffer bumper 12 is made of rubber or the like that absorbs collision energy while being elastically deformed by an external force, and its form is installed as a whole along the circumference of the buoyancy body 10 or a plurality of them are installed at regular intervals. , It is installed to be replaceable through bolts, etc.

The buffer bumper 12 may also have a tube shape in which a buoyancy material (air, etc.) is filled therein, and in this case, there is an advantage in that it can perform two functions of buoyancy and buffering of the buoyancy body 10 .

The buoyancy body 10 may include one or more connecting ropes 15 so as not to be separated from the buoyancy type brake 20 .

The connection rope 13 has both ends in the longitudinal direction connected to the buoyancy body 10 and the buoyancy brake 20, respectively, to keep them 10 and 30 connected, but the buoyancy body 10 Since it should not interfere with the rise and fall of the buoyancy body 10 while not being separated from the buoyancy brake 20, it is made of a spare length in consideration of this.

It is also possible that two or more buoyancy bodies 10 are installed in one buoyancy brake 20, and in this case, each of the buoyancy bodies 10 is connected to the buoyancy brake 20, but each other for stable power generation. It may be connected, for example, as shown in FIG. 3, the buoyancy bodies 10 are connected by a telescopic connecting rod 14 and a coupling bracket 15 that do not interfere with the elevation of the buoyancy body 10.

As the telescopic connecting rod 14 is built on the buoyancy brake 20, the bottom of the cylinder is installed on the buoyancy brake 20, and the upper rod is connected to the coupling bracket 15 and fasteners (bolts and nuts, etc.) . The coupling bracket 15 is fastened with fasteners while the horizontal portion of one side is fixed to the buoyancy body 10 by fasteners or welding and the vertical portion of the other side is disposed on both sides of the telescopic connecting rod 14, respectively.

2. Buoyancy brake (20).

In fluid dynamics, drag is defined as "the force that resists this motion when an object moves in a fluid" and is divided into frictional force and pressure. Frictional force acts in a direction parallel to the surface of the object, and pressure is perpendicular to the surface of the object. The buoyancy type brake 20 uses this drag force in a state parallel to the sea level, and the drag force is engineeringly expressed through the following formula.

Fd = -1/2pv2 ACdv

Fd is the drag force, p is the fluid density, v is the relative velocity of the object and the fluid, A is the reference area of the object, and Cd is the drag coefficient representing the drag characteristics of the object.

What can be understood from the equation is that the drag force is proportional to the square of the object's relative velocity to the fluid, and the larger the velocity and the larger the area, the larger the drag force. The reference area and drag coefficient are also displayed to compare the drag characteristics of objects of different sizes. The buoyancy brake 20 and the float 22 are always located at a constant depth below the sea level regardless of the wave height generated at the sea level by using the engineering principle of drag.

The buoyancy brake 20 using the underwater drag is installed so as to remain fixed without rising and falling based on the sea level in the water, and supports the rising and falling of the buoyancy body 10, while the float 22 described later It is a configuration in which the fixed position is adjusted by adjusting the connection length of the brake plate 21 or by adjusting the buoyancy, and is installed on the brake plate 21 and the brake plate 21, and the brake plate 21 is lifted from the sea level through buoyancy. It is a brake plate aligner that maintains a certain height and includes a float 22 and a buoyancy tube 24, that is, through the load of the brake plate 21 and the buoyancy of the float 22, the lower part of the buoyancy body 10 The position is always set at a constant depth based on sea level in the water, and the brake plate is caused by the traction force generated when the float 22 rises or the wave decreases according to the area of the brake plate 21 and the height of the changing wave. Even when descending by its own load, high drag is expressed, so that the brake plate 21 is installed so that it does not rise and fall at a constant underwater depth based on the sea level despite the change in wave height. For this reason, the float 22 is operated in the form of being repeatedly submerged underwater in the waves even when the wave height is high. The buoyant body 10 floating on the sea surface by buoyancy is immediately raised and lowered by the changing wave height of the waves generated in a short time, while the brake plate 21 is caused by the buoyancy of the float 22 and the brake plate by the underwater drag. According to the load of (21), rising and falling due to waves cannot be immediately expressed. The lifting force and waves due to the buoyancy of the buoyancy body 10 generated from the time difference between the movement of the buoyancy body 10 operated by such buoyancy and the brake plate 21 whose position is almost fixed in the water by the underwater drag will be lowered. It is to convert the descending force caused by the load of the buoyancy body 10 generated when the power is generated.

The brake plate 21 is preferably manufactured to have a heavier load than the buoyancy body 10, and its shape is in contact with the water over a wider area to generate a large resistance when moving up and down in the water, thereby generating a strong external force that causes the up and down movement in the water. It is maintained horizontally with the installation depth, and therefore, even if rise and fall occur, power generation is possible because the rise and fall are performed at a slower rate than the rise and fall speed of the buoyancy body 10.

In addition, the brake plate 21 preferably has a larger area than the buoyancy body 10 so that the float 22 does not interfere with the buoyancy body 10. Of course, the same effect can be obtained by configuring a separate extension as the outer periphery of the brake plate 21 to install the float 22.

The brake plate 21 may have various shapes such as circular or rectangular shapes. The material of the brake plate 21 is preferably a thick wooden board, and a load can be applied by attaching an iron plate 21b or the like to supplement the low specific gravity to secure an appropriate settling force in the water. Of course, as shown in FIG. 15, separate load weights 21a may be equally attached around the brake plate 21.

The float 22 uses buoyancy to keep the brake plate 21 floating in the water without sinking, and is connected to the brake plate 21 through a connecting member 23 (rope, etc.). That is, by adjusting the length of the connecting member 23, the installation depth of the brake plate 21 based on the sea level is determined.

In addition, as shown in FIG. 4, a plurality of floats 22 each connected to the brake plate 21 may be connected to each other through a joint member 22a.

The joint member 22a is in the form of a bar (circular, etc.) made of a material having extensibility and extensibility. In addition, the joint member 22a includes a plurality of buffer balls 22b so that the floats 22 do not interfere with each other and do not get entangled, and even if another buoyancy body 10 or a ship collides from the outside, the collision energy is reduced. absorb

Of course, as shown in FIG. 4, the buoyancy body 10 is also connected to each other through the plurality of buffer balls 22b and the joint member 22a connected to each other, so that the buoyancy 22 and the buoyancy body 10 get tangled in strong winds. It is also possible to prevent obstacles that may occur when the buoyancy body 10 rotates by itself due to waves, as well as preventing collisions.

In addition, the buoyancy tube 24 is installed on the circumference of the brake plate 21 in the form of a ring as a whole or in the form of dots at regular intervals to adjust the buoyancy of the brake plate 21.

The buoyancy tube 24 is connected to an injection pipe 26 for injecting and discharging an internal buoyancy material (air, etc.). The injection pipe 26 has its injection port mounted on the buoyancy body 10 to enable additional injection and discharge operations on a working ship at sea.

In addition, a protective guard 27 may be included to protect the buoyancy tube 24.

As a method of installing the buoyancy tube 24 and the protective guard 27, for example, by forming a groove that opens toward the side on the circumference of the brake plate 21, inserting the buoyancy tube 24 into this groove, and protecting It is possible to cover the buoyancy tube 24 with the guard 27 and fix both the upper and lower sides to the brake plate 21 with fasteners.

The float 22 floats on the water surface, and the buoyancy tube 24 has the same solution principle in terms of controlling the buoyancy of the brake plate 21, although there is a difference in being submerged in the water together with the brake plate 21. In addition, the buoyancy tube 24 is installed to have a sufficient expansion volume and is configured to float the brake plate 21 to the sea level when air is supplied from a working ship at sea. By doing this, it is possible to move to a maintenance site through sea or towing during repair or maintenance for maintenance of the brake plate 21 .

The above float 22 and the buoyancy tube 24 ensure that the buoyancy brake 20 is always fixed at a certain depth below the sea level even if the tidal difference is 8 m or more.

In addition, the brake plate 21 is fixed on the sea floor through the anchor 25 and is configured not to move greatly due to tidal currents. However, the anchor line 25a (rope, chain, etc.) connecting the anchor 25 can be secured to a sufficient length so that it can be moved by the tidal current, and at the same time, the brake plate 21 is Do not descend into the water at an installation depth below sea level. That is, when a sufficient length of the anchor line is secured, the brake plate 21 moves in the direction of the current while maintaining a certain depth below the sea level by the float 22 and the buoyancy tube 24, but does not descend into the water. Although the anchor line has a margin, the brake plate 21 maintains a fixed state at a certain depth below the sea level even during the washing machine in which the current direction is stopped.

In addition, as shown in FIG. 13, one or more holding bodies 200 inserted and fixed to the sea floor are installed, and a flexible fixing line 210 such as a chain is connected and fixed to the holding body 200, and the fixing line 210 ) may be connected and fixed to the brake plate 21 so that the position can be determined.

The wave power generation device of the present invention may be installed and operated together with a plurality of them, in which case the buoyancy brakes 20 are connected to each other.

As shown in FIG. 5 , neighboring buoyancy brakes 20 are connected to each other through connecting rods 28 .

The connecting rod 28 is connected to the neighboring buoyancy brakes 20 on both sides in the longitudinal direction, and is made of a material having extensibility to maintain the connection state even when the buoyancy brakes 20 move independently. That is, even if the connecting rod 27 is bent at a large angle due to large waves or strong tidal forces, the buoyancy type brakes 20 maintain a horizontal state.

It includes a pressure relieving means for preventing the buoyancy brake 20 from being damaged while being tilted at a large angle momentarily by typhoons, strong waves, waves of high waves above the design value, strong currents, and the like.

As shown in FIG. 7 , the pressure relieving means is composed of pressure relieving holes 28 formed vertically through the brake plate 21 and pressure relieving plates 50 opening and closing the pressure relieving holes 28 .

The pressure relief plate 50 maintains the pressure relief hole 28 in a closed state through the elastic force of the elastic member 51, and opens the pressure relief hole 28 by this external force when an external force greater than or equal to the elastic force is applied. And, for example, one side is hinged to the brake plate 21 and the free end is supported through the elastic member 51.

The pressure release plate 50 is installed above the brake plate 21 as shown in FIG. 7 or below the brake plate 21 as shown in FIG. 8 . Preferably, an upper pressure release plate and a lower pressure release plate are installed together in the same number on one brake plate 21 .

The elastic member 51 is installed through a support installed on the brake plate 21 and closes the pressure relief hole 28 by pressing the free end of the pressure relief plate 50 through its own elastic force.

The elastic member 51 may be both a coil spring and a plate spring, and may be installed on the brake plate 21 without a separate support.

The pressure plate 50 normally closes the pressure relief hole 28, and when a large external force is applied through waves, etc., the pressure relief hole 28 is opened to prevent force such as waves from being applied to the buoyancy type brake 20. do.

A return spring may be included between the brake plate 21 and the buoyancy body 10 to quickly return the buoyancy body 10 . Of course, the operation of the pressure plate 50 can be configured so that it can be opened and closed by installing an electric driving device through an electronic sensor such as a pressure sensor without the construction of an elastic member 51, and it is a hatch type to prevent storm forecasting in advance. The same effect can be achieved by manually opening it.

3. Generator (30).

The generator 30 is a gear-type generator that is installed on the deck of the buoyancy body 10 and is connected to the power generation support 40 and generates power by rotating the power generation gear 31 when the buoyancy body 10 moves up and down. When two gear parts (rack parts) 41 are formed on the support 40, two gears are applied.

For organic coupling and power generation of the generator 30, the buoyancy body 10, and the buoyancy type brake 20, for example, a power generation support 40 is included.

The development-type post 40 is fixed to the bottom of the buoyancy type brake 20 and the upper part penetrates the post connection hole 11 of the buoyancy body 10, and the rise and fall of the buoyancy body 10 It is composed of a height that does not escape from the buoyancy body 10 in consideration.

The power generation support 40 is connected to the generator 30 to drive the generator 30, and the connection forms, for example, a gear part 41 on the power generation support 40 and the power generation shaft of the generator 30. A generator gear (pinion) 31 is installed to engage the gear unit 41 and the generator gear 31.

The gear part 41 of the development type support 40 is formed long along the vertical direction in consideration of the elevation of the buoyancy body 10.

It includes a protective cover 42 that protects the power generation type support 40 penetrating upward through the support connection hole 11 of the buoyancy body 10 .

The protective cover 42 is composed of a height in consideration of the fact that the height of the power generation support 40 varies from the deck of the buoyancy body 10 due to the elevation of the buoyancy body 10, and covers the power generation support 40 to the outside and It is blocked and the bottom is fixed to the buoyancy body (10).

When the bottom part is fixed to the brake plate 21, the power generation support 40 has a high height and a large volume, so storage and transportation are not good, and in this process, there is a risk of damage due to external collision, so it is configured in a folding type. do.

The development support 40 is rotatably installed on the brake plate 21 through a shaft pin, and is laid on the deck of the brake plate 21 during storage and transportation, rotated during use, and fixed to stand on the brake plate 21 do.

In addition, as shown in FIG. 6, the buoyancy body 10 stably ascends and descends along the power generation support 40 and includes a guide roller 44 to maintain a connection with the generator 30 so that efficient power generation is achieved.

The guide roller 44 is rotatably installed on the deck of the buoyancy body 10 through a bracket or the like and is supported on the circumferential surface of the power generation support 40 so that the buoyancy body 10 is the power generation support 40 To be raised and lowered using a support base, preferably symmetrically installed on the development type holding (40). Therefore, the development-type post 40 is preferably a ready-made H-beam.

The guide roller 44 is installed to be able to move forward and backward toward the power generation type support 40 to correspond to the size change of the power generation type support 40 .

The generator 30 is not limited to the above-mentioned support type, and cylinder and piston type, liner generator type, etc. are also possible.

As shown in FIG. 9 , the development type support 40 also includes buffering the shock caused by the elevation through the suspension 43 .

Two or more suspensions 43 are installed on the circumference of the power generation support 40 and are connected to the bracket formed on the circumference of the brake plate 21 and the power generation support 40 to support the power generation support 40. And, it buffers the development type holding 40 through its own buffering force.

On the contrary, the power generation support 40 is fixed to the buoyancy body 10, the brake plate 21 is provided with a hole through which the power generation support 40 passes, and the generator 30 is attached to the brake plate 21. It is also possible to be configured to mesh with (40).

The installation method of the floating wave power generator including a brake using buoyancy according to the present invention having the above configuration is as follows.

1. Transport.

A generator 30 is installed in the buoyancy body 10, and the buoyancy body 10 and the buoyancy brake 20 are stored and transported separately from each other.

In the transport method, the buoyancy body 10 and the buoyancy type brake 20 are transported separately or together using a transport ship.

2. Installation.

go. Install buoyant brakes.

By setting the buoyancy of the buoyancy brake 20 through the float 22 and the buoyancy tube 24, the buoyancy brake 20 is submerged in a certain position based on the seabed, and the anchor 25 is anchored on the seabed do.

At this time, the development type support 40 built on the buoyancy type brake 20 is a position in which a part of the upper part protrudes above the water surface, and is a position in consideration of the elevation of the buoyancy body 10 in the initial installation position.

me. buoyancy installation.

Buoyancy by carrying the buoyancy body 10 to the side of the power generation support 40, lifting it to the top of the power generation support 40, matching the support connection hole 11 with the power generation support 40, and then lowering it. It is connected to the expression brake (20).

Alternatively, adjust the buoyancy of the buoyancy brake 20 to lower it sufficiently below the sea level, and then adjust the buoyancy of the buoyancy brake 20 again after placing the holding connection hole 11 on the top of the power generation support 40. It is raised to match the development type holding 40 and then connected to the buoyancy brake 20 by lowering.

The buoyancy body 10 and the buoyancy type brake 20 are connected with the linkage rope 13.

In the floating wave power generator 100 including a brake using buoyancy installed through the above process, the buoyancy brake 20 always maintains a constant depth from the sea level through the buoyancy of the buoyancy 22 and the buoyancy tube 24 It is a state of doing, and maintains the installation position in the change of wave height.

On the other hand, the buoyancy body 10 maintains a state of floating on the surface of the water and therefore rises and falls according to the change in wave height.

At this time, while the power generation support 40 maintains a fixed state through the buoyancy brake 20, the generator 30 rises and falls through the buoyancy body 10, so the power generation gear 31 It rotates while moving up and down along the gear part 41 of the power generation support 40, and the generator 30 generates power by using the rotation of the power generation gear 31.

<Example 2>

As shown in Figure 10, the floating wave power generator 100 including a brake using buoyancy according to this embodiment is different from Example 1 in that it is a piston pump type power generation type.

The buoyancy body 10 and the buoyancy brake 20 are the same as in Example 1, and the generator is a water wheel generator (hydroelectric turbine or hydraulic turbine) 30-1 and includes a power generation pump 60.

The power generation pump 60 is composed of a cylinder 61 into which fluid is introduced and a piston 62 connected to the cylinder 61 in a withdrawable and retractable manner, and the cylinder 61 has a free end of the brake plate 21 ), while the rod 62a of the piston 62 has its free end fixed to the bottom of the buoyancy body 10.

For example, in the power generation pump 60, the cylinder 61 to which the piston 62 is coupled is installed in a fixed or collapsible manner on the brake plate 21 to separate the buoyancy brake 20 and the buoyancy body 10. handle, and fix the free end of the piston rod (62a) to the buoyancy body (10) during installation. Here, it is preferable to form a hole penetrating vertically in the buoyancy body 10 to enable marine work, pass the free end of the piston rod 62a through the hole, and then perform a fixing operation on the top of the buoyancy body 10. do.

In addition, the cylinder 61 forms a hole penetrating vertically in the brake plate 21 so that the cylinder 61 is firmly installed with respect to the brake plate 21, and the cylinder 61 is supported by the brake plate 21 by penetrating the hole. Fix it with fasteners, etc., while doing so.

The inside of the cylinder 61 is preferably an incompressible fluid.

The interior of the cylinder 61 and the water turbine generator 30-1 are connected through a flow path so that the generator 30-1 can be powered and driven by pressure changes caused by the elevation of the piston 62.

For example, the first and second passages 63 and 64 are connected to both ends of the cylinder 61 and both ends of the water turbine generator 30-1.

In addition, when the other water turbine generator 30-1 is operated together, the third flow path 65 is connected to one end of the cylinder 61 and the fourth flow path 66 is connected to the top of the cylinder 61. Here, a portion directly above the second flow path 64 or the third flow path 65 is the bottom dead center of the piston 61 .

Additionally, pressure tanks 67 and 68 may be attached to supplement the pressure in the cylinder 61.

According to this embodiment, the buoyancy type brake plate 20 maintains a certain height from the sea level, and the buoyancy body 10 rises and falls according to the wave height.

At this time, the piston 62 rises or descends together with the buoyancy body 10, and in this process, the fluid circulates through the water turbine generator 30-1 to generate electricity.

When the above-described power generation support 40, cylinder 61, and piston rod 62a are installed through holes in the brake plate 21 or the buoyancy body 10, damage due to direct contact may occur, In order to prevent this, a shock absorber ring buffered and supported by the brake plate 21 and the buoyancy body 10 may be included in the circumference of the power generation support 40, the cylinder 61, and the piston rod 62a.

Of course, buffer bumpers may be included on inner surfaces of the brake plate 21 and the buoyancy body 10 instead of the buffer ring.

On the other hand, when the body of the buoyancy body 10 is inclined more than the design value or the brake plate 21 is inclined by strong waves such as storms, the cylinder 61 is not damaged, that is, the brake plate 21 is not inclined. As shown in FIG. 11A so that the cylinder 61 maintains an installed state without bending with respect to the buoyancy body 10, the brake plate 21 includes a hole larger than the outer diameter of the cylinder 61 while holding the cylinder 61 It includes a buffer bumper 29 supported at the bottom, and an elastic upright member 69 fixed to the circumference of the cylinder 61 and the brake plate 21 to maintain the cylinder 61 in an upright state.

The buffer bumper 29 and the elastic upright member 69 support the cylinder 61 in an upright state by complementing each other, and particularly keep the cylinder 61 upright even when the brake plate 21 is tilted.

The buffer bumper 29 may be installed in a ring shape or a plurality of points in a shape, and the cylinder 61 includes an outward flange supported by the buffer bumper 29 at its circumference.

The elastic upright member 69 may be a variety of elastic members such as coil springs.

Alternatively, as shown in FIG. 14, the buffer bumper 29-1 is fixed to the brake plate 21 with the fixing ring 29-2 and the bolt 29-3, and the cylinder 61 is inserted in the form of rubber. It can be installed in a tube form to realize the same effect.

The above tilting means is equally applicable to the above-described development type holding 40.

In addition, as shown in FIG. 11B, the power generation pump 60 may be tiltably connected on the brake plate 21, and the cylinder 61 is tiltably connected to the brake plate 21 and the generator 30 is installed in the cylinder 61 to generate power. At this time, the piston 62 may also be hinged to the buoyancy body 10 .

<Example 3>

As shown in FIG. 12, the floating wave power generator 100 including a brake using buoyancy according to this embodiment is different from Examples 1 and 2 in that it is a liner-type generator.

The liner-type generator 70 is to generate power through linear reciprocating motion, and is fixed to the power generation cylinder 71 and the buoyancy body 10 fixed to the buoyancy brake 20 and moves linearly through the power cylinder 71 ( It consists of a power generation rod 72 that rises and falls). For example, a coil is wound on the inner circumferential surface of the power generation cylinder 71, and a permanent magnet may be installed on the power generation rod 72.

Installation of the power generation cylinder 71 and the power generation rod 72 can be performed in the same way as the cylinder 61 and the piston rod 62a of the second embodiment.

A retractable protective cover 73 may be included to protect the power generation rod 72 from underwater. The retractable protective cover 73 may have a corrugated tube shape or an elastic tube shape.

According to the present embodiment, the power generation rod 72 moves up and down according to the elevation of the buoyancy body 10, and power is generated in the power generation rod 72 and the power generation cylinder 71.

<Example 4>

As shown in FIG. 13, the floating wave power generator 100 including a brake using buoyancy according to this embodiment is different from Examples 1, 2, and 3 in that it is a seawater pump-type generator.

A seawater pump 80 composed of a cylinder 81 and a piston 82 is installed in the buoyancy body 10 and the buoyancy brake 20 to suck and discharge seawater, and pumped through the pumping of the seawater pump 80 It is composed of first and second seawater generators 90-1 and 90-2 that generate rotational force through seawater and generate power with this rotational force.

The cylinder 81 is fixed to the buoyancy type brake 20 and the piston 82 is fixed to the buoyancy body 10 through a rod to perform a pumping operation when the buoyancy body 10 ascends and descends.

The cylinder 81 of the seawater pump 80 is configured with first and second inlets 83-1 and 83-2 at both ends of the upper and lower ends, respectively, while on the opposite side of these inlets 83-1 and 83-2. A discharge unit connected to the first and second seawater generators 90-1 and 90-2 is configured.

The first and second inlet parts 83-1 and 83-2 and the discharge part have a structure in which only inflow or discharge is possible through check valves, respectively.

According to this embodiment, when the piston 82 descends and rises, seawater is introduced through the first or second inlet portions 83-1 and 83-2, and then the first or second seawater generator 90-1, 90-2), and the first and second seawater generators 90-1 and 90-2 generate power by generating rotational force while discharging seawater.

Of course, only one seawater generator is configured, and accordingly, the inlet and outlet may be configured in only one location.

Hereinafter, additional configurations according to the present invention will be described.

<2 or more brake plates>

When the drag of the brake plate 12 applied as a single sheet is small, the drag can be compensated by increasing the diameter of the brake plate 21, but manufacturing and handling (transportation, installation, etc.), and as another more realistic solution, there is a method of increasing the drag of the brake plate by applying the brake plate in two stages (different heights) or more. 16 shows three-layer brake plates 21-1, 21-2, and 21-3 as an example. For example, the first-stage brake plate 21-1 is a power generation pump 60 (or power generation type). The support 40) is installed through a connecting means, the second-stage brake plate 21-2 is connected to the first-stage brake plate 21-1 through a connecting means, and the third-stage brake plate 21-3 is It is connected to the second stage brake plate 21-2 through a connecting means. The connection means is configured to move up and down, and it is possible to bring the first to third stage brake plates 21-1, 21-2, and 21-3 close to the buoyancy body 10.

The first to third brake plates 21-1, 21-2, and 21-3 are disposed at the bottom and have a narrower diameter as they go.

On the other hand, in a severe storm, the first to third stage brake plates (21-1, 21-2, 21-3) are raised through the connection means so that the piston is not operated to configure a safety locking function so that they are combined with the buoyancy body. do.

<Connection between buoyancy body and piston rod>

The buoyancy body 10 may fluctuate irregularly due to waves, etc., and during such a behavior of the buoyancy body 10, the buoyancy body 10 and the piston rod 82 (sea water pump 80 will be described as an example) A spherical bearing 85 (FIG. 17) and a universal joint 86 (FIG. 18) may be applied as a configuration to prevent damage to the connecting portion of the.

These spherical bearings 85 and universal joints 86 allow the buoyancy body 10 and the piston (rod) 82 to move freely within a certain angle, even if the buoyancy body 10 fluctuates due to waves and the like. It prevents the connection between the buoyancy body 10 and the piston 82 from being damaged.

Here, a protective casing 87 may be added to protect the spherical bearing 85. A cushion 88 made of an elastic material may be included in the protective casing 87 to prevent damage due to contact of the piston 82 .

Although not shown in the drawing, a protective casing may be applied to the universal joint 86 as well.

<Connection of seawater pump and ground-type water turbine generator>

As shown in FIG. 19, it is also possible to connect the discharge pipe 84 of the seawater pump 80 to the water turbine generator (turbine) 200 installed on the ground.

The discharge pipe 84 allows water to be filled in the water storage tank 210 (or pressure tank 210) installed in the mounting tower, and the water pressure is formed by the water pressure being filled or the water level stored in the water storage tank 210. It allows the turbine of the water turbine generator 200 to rotate.

In addition, as shown in FIG. 16, check valves 84a and 83a are provided in the first and second discharge pipes 84-1 and 84-2 and the inlets 83-1 and 83-2 of the discharge pipe 84, respectively. is installed so that the discharged water discharged from the cylinder 81 of each wave power generator can be supplied to the pressure tank or water storage tank without flowing back to itself or the car cylinder part.

In addition, in the case of the seawater pump 80 that directly sucks in and compresses and discharges seawater, filter boxes 83b are installed in the first and second inlets 83-1 and 83-2 to prevent marine floating matter or attached organisms such as barnacles. prevent ingress. The filter box 83b may be installed in a ring shape to surround the cylinder 81.

20 shows an example of fixing the buoyancy body 10 and the seawater pump 80, and two or more fixing brackets 16 are installed on the bottom of the buoyancy body 10 and the seawater pump is attached to the fixing bracket 16. Fix the cylinder 81 of (80).

The fixing bracket 16 is, for example, fixedly installed with a nut to a bolt-type fixing bar 17 that penetrates the buoyancy body 10 and is fixed with a nut.

10: buoyancy body, 11: holding connection hole
12: buffer bumper, 13: linkage rope
14: telescopic connecting rod, 15: coupling bracket
20: buoyancy brake, 21: brake plate
22: float, 23: connection member
24: buoyancy tube, 25: anchor
26: injection pipe, 27: protective guard
28: pressure relief hole,
30: generator, 31: generator gear
40: power generation support, 41: gear part
42: protective cover,
50: pressure relief plate, 60: power generation pump
70: liner type generator, 71: power generation cylinder
72: power generation rod,
80: sea water pump, 81: cylinder
82: piston, 83-1, 83-2: first and second inlets
90-1,90-2: 1st and 2nd seawater generators,

Claims (18)

A buoyancy body that floats on the surface of the water and rises or falls according to the water level;
a generator that generates power through the rising and falling of the buoyancy body;
It includes a brake means for supporting the buoyancy body,
The brake means is a buoyancy-type brake in which the fixed position is adjusted through the control of buoyancy while supporting the rise and fall of the buoyancy body in a state where it is installed in water and maintained fixed without rising and falling at a certain depth based on the sea level. ,
Including a brake plate, a pressure relief hole formed vertically through the brake plate, and a pressure relief plate that opens and closes the pressure relief hole, so that seawater pushes the pressure relief plate and flows through the pressure relief hole when a certain pressure is exceeded Floating wave power generation device comprising a brake using buoyancy, characterized in that. The method according to claim 1, wherein the buoyancy-type brake includes a brake plate alignment tool installed on the brake plate and maintaining the brake plate at a predetermined depth from the sea level through buoyancy. type wave power generator. The floating wave power generator of claim 2, wherein the brake plate aligner is connected to the brake plate and is a plurality of floats floating on the surface of the water. The floating wave power generator including a brake using buoyancy according to claim 2, wherein the brake plate aligner is a buoyancy tube installed on the brake plate. delete The floating wave power generation device including a brake using buoyancy according to any one of claims 2 to 4, characterized in that it comprises a tilting means for compensating for the inclination of the brake plate or the buoyancy body. The method according to claim 2, Floating wave power generation device including a brake using buoyancy, characterized in that it comprises a connecting rope connecting the buoyancy body and the brake plate. The method according to claim 2, Floating wave power generation device including a brake using buoyancy, characterized in that it comprises one or more holding bodies or anchors fixed to the brake plate and fixed on the sea floor. The method according to claim 1, wherein two or more buoyancy bodies are connected and used, and the two or more buoyancy bodies are connected to a telescopic connecting rod installed in the buoyancy type brake. Floating wave power generator. The method according to claim 3, Floating wave power generation device including a brake using buoyancy, characterized in that the plurality of floats are connected to each other through a joint member. The method according to claim 1, wherein the generator is installed on the buoyancy-type brake and has a gear unit, a rack and pinion type generator including a generator gear installed on the buoyancy body and meshed with the gear unit of the power generation unit to drive power generation Floating wave power generation device comprising a brake using buoyancy, characterized in that. The method according to claim 1, wherein the generator is built on the buoyancy brake and includes a power generation cylinder with a coil wound therein, a permanent magnet, and a power generation rod fixed to the bottom of the buoyancy body and movably connected to the inside of the power generation cylinder. Floating wave power generation device including a brake using buoyancy, characterized in that the liner type generator comprising a. The method according to claim 1, wherein the generator is a floating wave power generation device including a brake using buoyancy, characterized in that the generator is a seawater pump type that circulates seawater through a seawater pump that pumps and feeds seawater. The method according to claim 2, The floating wave power generation device including a brake using buoyancy, characterized in that two or more brake plates are installed at different heights to increase the drag. The method according to claim 13, Floating wave power generation device including a brake using buoyancy, characterized in that the discharge pipe of the seawater pump is connected to the aberration generator installed on the ground to drive the aberration generator through the flow of seawater. The method according to claim 13, Floating wave power generation device including a brake using buoyancy, characterized in that the rod of the seawater pump is connected to the buoyancy body in an angle-adjustable manner. The method according to claim 13, Floating wave power generation device including a brake using buoyancy, characterized in that the cylinder of the seawater pump is fixed to the buoyancy body. A method for installing a floating wave power generator including a brake using buoyancy according to claim 1,
A first step of transporting the buoyancy body and the buoyancy brake in a separated state in which the generator is installed;
A second step of preparing the buoyancy by adjusting the buoyancy according to the installation depth of the buoyancy brake and then installing the buoyancy brake in the water;
A floating wave power generation device including a brake using buoyancy, characterized in that it comprises a third step of moving the buoyancy body to the top of the buoyancy brake and then raising and connecting the buoyancy brake to float on the sea surface. installation method.

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