KR20120011742A - Water floating wind generator - Google Patents

Abstract

The present invention relates to a water floating wind generator, which allows the water floating body supporting a wind generator to be stably buoyed over the widest possible area. The present invention relates to a column disposed generally perpendicular to the sea surface and installed on top of the column. A wind generator comprising a generator housing, and a plurality of vanes rotatably installed in the generator housing, a floating body having a hollow portion formed therein to float on the water surface, and a separate buoyancy force even when seawater is introduced into the hollow portion. It characterized in that it comprises a receiving portion for receiving air in the hollow portion to generate, a structural support on the upper surface of the water floating body and the column is installed, and a pedestal coupled to the lower surface of the water floating body. .

Description

Floating Wind Generator {Floating windgenerator}

TECHNICAL FIELD The present invention relates to a waterborne floating foundation structure, and more particularly, to a waterborne floating wind generator which allows a waterborne floating body supporting a wind generator to be stably buoyed over the widest possible area.

Wind generators are devices that convert the energy of the wind into electrical energy that we can use usefully. The blowing wind rotates the blades of the wind generator and produces the electricity from the rotational force of the blades. Wind generators can produce more wind energy at higher wind speeds and larger windmills, so larger wind power and larger windmills generate more power.

 Fossil fuels such as coal and petroleum, which are currently being used, are gradually being depleted as non-renewable energy sources, and environmental pollution due to the use of fossil fuels has been a problem. In recent years, pollution-free wind power is becoming more popular as an alternative energy source for these problems.

 Due to the development of onshore wind power, wind turbines have been enlarged, which has revealed the limitations of installation sites in Korea where there are not enough sites. Onshore wind generator installations are expensive to install and require large separation distances between them to effectively use wind power. In Korea, where the site is expensive to purchase or rent, it is difficult to secure the separation distance required for the installation of onshore wind power generators. In addition, windy areas are limited and limited. Moreover, the windy areas in Korea are not only difficult to lay foundations, but also difficult to transport the tools needed to install them from the flat to the mountainous areas. Due to the high altitude and steep slopes of the mountains, the installation process is complicated and difficult.

 On the other hand, in the case of offshore wind generators, there is no limit to secure the site, so it is possible to construct a large-scale wind farm on the sea. In addition, in the sea, winds with high wind speeds are periodically blown, and since there are no obstacles such as high buildings or mountains in the sea, there is little change in wind speed depending on the turbulence, height, and direction of the wind. For this reason, it is possible to maintain about 1.5 to 2 times higher generation with relatively low fatigue load compared to onshore wind power under similar conditions.

However, many problems arise in setting up wind power in the far good seas. In the case of strong air volume and coarse waves caused by weather changes, there is a problem in that the buoyant columnar floating structure is severely shaken and the materials of the wind generator are damaged. Frame members radially connected to the pillars of the wind generator and floating structures combining the buoyancy members on the frame were installed on the sea to operate the generator, but the wind generators were not used for maintenance and maintenance of the wind power generators from breakage and breakage due to coarse waves. There are several problems. Partial deviation of buoyancy prevents the floating structure from centering, or the space where the manager moves and works is so narrow that the accident falls into the sea.

In order to solve the above problems, an object of the present invention is to install an offshore wind power generator using a new type of floating floating foundation structure that can be floated safely in a floating water.

The purpose of this study is to install a floating floating wind generator in which wind turbine materials are not damaged due to severe fluctuations in the columnar floating structure with narrow buoyancy even when strong winds and coarse waves occur due to weather changes.

It solves the problems of breakdown and breakage of buoyancy due to coarse waves and maintenance of wind generator at sea.

Solve the accident of falling into the sea due to the lack of buoyancy of the floating structure due to the partial deviation of buoyancy or the narrow space where the manager moves and works.

In order to solve the above problems, an object of the present invention is to install an offshore wind power generator using a new type of floating floating foundation structure that can be floated safely in a floating water.

In order to achieve the above object, the water floating wind power generator having the water floating foundation structure provided by the present invention includes a pillar disposed generally perpendicular to the sea surface, a generator housing installed on the pillar, and a rotation in the generator housing. A wind generator comprising a plurality of vanes possibly installed; An aqueous floating body having a hollow portion formed therein to float on the water surface; An accommodation unit accommodating air in the hollow part to generate a separate buoyancy even when seawater is introduced into the hollow part; A structure support positioned on an upper surface of the floating body to install the pillar; Pedestal coupled to the bottom surface of the water floating body; Characterized in that it comprises a.

In addition, in order to achieve the above object, the water floating wind power generator having the water floating foundation structure provided by the present invention is made thicker than the thickness of the structure support and the water floating body, the weight of the water floating structure than the buoyancy center of the water floating structure A pedestal that allows the waterborne structure to float above the surface of the water and down; It characterized in that it further comprises a fixing portion connected to the water floating body to prevent movement of the water floating body.

And in order to achieve the above object, the water floating wind power generator having the water floating foundation structure provided by the present invention, one end of the fixing portion is provided as an anchor is fixed to the bottom surface and the main body is connected to the other end of the fixing portion Connection; It characterized in that it further comprises an air bag made of a rubber material to serve as an auxiliary floating body of the water floating body.

In the water floating wind generator according to the present invention, even if a strong wind volume and coarse waves caused by the weather changes, the buoyant columnar structure of narrow buoyancy is severely shaken, so that the materials of the wind generator stably float and float stably without damaging the materials of the wind generator. Floating wind generators can be installed offshore.

It is possible to solve the difficulty of maintaining the wind generator at sea due to the departure and breakage of the buoyancy part by coarse waves.

Partial deviation of buoyancy can solve the accident of falling into the sea because the floating structure is not centered or the space where the manager moves and works is narrow.

1 is a combined perspective view of the water floating wind generator of the present invention.
2 is an exploded perspective view of the water floating wind generator of the present invention.
3 is a partial cutaway perspective view of the waterborne foundation structure of the present invention.
4 is a cross-sectional view of the waterborne foundation structure of the present invention.
5 is a combined perspective view of another water floating wind generator embodiment of the present invention.

In order to achieve the object according to the present invention, a water floating foundation structure is installed on the sea and a wind generator is installed thereon. The inventors' floating floating foundation structure is characterized by more efficient power energy production than conventional offshore wind generators or conventional offshore wind generators in which the pillars of the wind generator are directly fixed to the sea floor.

Hereinafter, with reference to the accompanying drawings will be described in detail with respect to the configuration and operation of the water floating wind generator according to the present invention.

1 is a combined perspective view of a water floating wind generator, Figure 2 is an exploded perspective view of the water floating wind generator. As shown in the drawings, the floating water wind turbine according to the present invention includes a wind generator 110 and a main body 210, a structure support 220, a pedestal 230, and a fixed part 300, which includes a pillar 110 and a power generation unit 120. It consists of a floating structure consisting of water).

The wind generator is largely composed of a pillar 110 to support the wing and the housing and the power generation unit 120 including the wing and the housing. The plurality of wings are attached to the housing in a pinwheel shape and can be rotated by wind. The pillar 110 of the wind generator supports the power generation unit 120 at a high position so that the power generation unit 120 may maximize the amount of power generation using high quality wind at a high position.

The structure supporter 220 is a support for installing the column 110 and the power generation unit 120 on the floating waterborne foundation structure. The structure supporter 220 is positioned between the upper surface of the water floating body 210 and the lower surface of the power generation unit 120 and is made of a metal having a small density to increase buoyancy. It is coupled to the center of the water floating body 210 and the upper surface of the structure support 220 may be different in the structure of the coupling portion in accordance with the coupling method of the pillar 110 to be coupled. Referring to FIG. 2, the coupling between the floating floating foundation structure and the wind generator is connected by a block assembly method in consideration of the weight of the wind generator itself so that the top surface of the structure support 220 includes a protrusion 225. In consideration of the installation of the water floating structure on the beach where a lot of salt is easily corroded, the water floating body 210 and the structure support 220 is integrally combined without a gap.

The floating body main body 210 is made of a cylindrical plate having a large base and a very low height. When the wind generator composed of the pillar 110 and the power generation unit 120 is installed on the upper surface of the floating structure, the floating body to stably float on the water surface by minimizing the movement of the buoyancy center descended by the wind generator. (210) The area of the underside was made wide and the height was made low. The floating body 210 is made of a single bulk buoyant material that is bulky and wide to maximize buoyancy. In addition, the interior is manufactured to maintain the hollow state to minimize specific gravity. Inside the water floating body 210 is provided with a receiving portion 250 for accommodating air so as to generate a separate buoyancy even if seawater is introduced into the hollow portion of the water floating body 210 to the seafloor. .

Receiving unit 250 is made smaller in volume than the water floating body 210 and the same shape can be installed in the inside of the water floating body (210). The receiving portion serves as an auxiliary float of the floating body of the air bag made of a rubber material.

A cylindrical pedestal 230 is coupled to the bottom surface of the water floating body 210. The pedestal 230 may increase the buoyancy of the floating structure to support the weight of the wind generator. Buoyancy is a force equal to the weight of the fluid replaced when an object is contained in the fluid and acts in the opposite direction of gravity. As the pedestal 230 is submerged under the water surface, a buoyant force acting in the opposite direction to gravity acts, and the buoyancy allows the water floating wind generator to float above the water surface. The determinant of buoyancy is not the weight of the object, but its volume, and the magnitude of the buoyancy is equal to the weight of the fluid that replaced the object. Therefore, the buoyancy can be increased by increasing the volume of the pedestal 230 and the water floating body 210 of the water floating wind generator.

In general, to maintain an object floating above the surface of the water, the center of gravity of the object must be located below the buoyancy center of the object. If the buoyancy center is below the center of gravity, the torque is generated and the object does not center. The components of aquatic floating wind generators must be made of a low specific gravity material and have a buoyancy greater than the gravity acting on the object, causing the object to float above the surface of the water. The pedestal 230 lowers the center of gravity of the water floating wind generator when the water floating wind generator floats on the water, and supports the water floating wind generator to float. In addition, when the pedestal 230 is attached to the lower surface of the water floating body 210, the center of gravity of the water floating body 210 and the center of gravity of the pedestal 230 coincides with the vertical line so that the torque does not occur 230 is coupled to the central portion of the water floating body (210).

At the side edges of the water floating body 210, a plurality of first connecting parts 240 to be connected to the hook-shaped connecting parts of the fixing part 300 are provided at regular intervals. The fixing part 300 fixes the position of the water floating wind generator. The plurality of fixing parts 300 are ropes made of wires and have respective connections at both ends. One end of the fixing part 300 is composed of an anchor 320 to be connected to the bottom of the sea bottom, and the other end is formed of a hook-shaped second connection part 330 to be connected to the first connection part 240. The plurality of fixing parts 300 fix the position of the water floating wind generator to prevent the water floating structure from being moved by the strong waves, the flow of sea water, and the sea wind.

 Figure 3 is a cutaway perspective view of a part of the water floating foundation structure except the fixed portion 300, the pillar 110, the power generation unit 120 in the water floating wind generator of the present invention in the water floating body 210 inside the water floating body ( 210 shows the same shape and the small size of the receiving portion 250 is included. Figure 4 is a cross-sectional view of the waterborne floating foundation structure excluding the fixed portion 300, the pillar 110, the power generation unit 120 in the water floating wind generator of the present invention between the water floating body 210 and the receiving portion 250 It shows a hollow part. 3 and 4, the internal configuration of the water floating body 210 can be well understood.

The interior of the water floating body 210 includes a receiving portion 250 in the form of an air bag that can accommodate the air made of hollow and rubber material. The accommodating part 250 accommodates air and seals the air particles to prevent the air particles from spreading out of the accommodating part 250. The accommodating part 250 acts as a double floating body together with the water floating body 210, and particularly, cracks are generated in the water floating body 210 so that the water floats even when seawater is introduced into the hollow inside the water floating body 210. It can act as an auxiliary float to maintain the buoyancy of a wind generator.

The water floating body 210 itself is made of a single buoyancy material made using iron plate, synthetic resin, concrete, etc., and the water floating body 210 has a uniform density and volume so that the buoyancy is not concentrated in one place. To be evenly distributed in the body 210.

In the drawings of the present invention, the shape of the floating body body 210 is shown as a disc, but this is only one example of implementing the present invention, in addition to the bottom surface of various polygonal forms such as square, pentagon, hexagon, etc. The three-dimensional cylindrical floating body main body 210 can be produced.

In the case of the pedestal 230 which is integrally coupled to the bottom center of the water floating body 210, the water floating body 210 or the structure supporter is positioned so that the center of gravity of the water floating wind generator is located below the buoyancy center. It is designed to be thicker than the thickness of 220. In FIG. 1, the pedestal 230 has a cylindrical shape, but this is merely an example of implementing the present invention.

5 is a perspective view illustrating a shape in which a hole is formed in the pedestal 230 according to another embodiment of the present invention. The pedestal 230 may be an obstacle to the flow of seawater flowing under the surface of water due to its large volume and density. For this reason, floating water wind turbines may not be centered and may be shaken or out of position. In order to solve this problem, a plurality of small holes 235 penetrating through the cylindrical pedestal 230 can reduce the resistance due to the flow of seawater, thereby preventing the shaking of the water floating wind generator.

Since the vertical height of the pillar 110 of the wind generator 100 installed on the structure support 220 is very long, the deformation force is generated by the strong wind and waves of the ocean. Referring to FIG. 6, the pillars 110 and the water floating body 210 of the wind generator 100 may support the support unit 400 in order to prevent bending of the pillar 110 of the wind generator 100 due to such a force. You can see the connection through. In the present invention, the support 400 is a rope made of a wire. One end 420 of the support 400 is loop-connected with the water floating body and the other end 430 is loop-connected with the pillar 110 of the wind generator, so both ends of the support 400 are hook-shaped. It consists of a ring. The wind generator and the water floating body 210 are connected by the support unit 400 to prevent the wind generator from bending and reinforce the rigidity of the pillar 110. By installing a plurality of rings 120 in the pillar 110 of the wind generator 100, the position of the support unit 400 may be changed according to the change in the direction in which the wind blows. When the support part is connected between the wind generator and the pillar 110 facing the wind, connecting the water floating body 210 may reduce the deformation force of the pillar 110 of the wind generator 100 by the wind.

110: pillar of wind generator
120: power generation unit of the wind generator
210: Structural Support of Floating Foundation Structure
220: water floating body of the water floating foundation structure
230: pedestal of waterborne foundation structure
240: a first connection portion connected to the fixed portion
250: receiving portion installed inside the floating body
300: fixed part
310: rope of the fixing part
320: anchor
330: hook connection
400: support
410: rope of support
420: one end of the support
430: the other end of the support

Claims (5)

A pillar disposed generally perpendicular to the sea level, a generator housing installed on top of the pillar, and a plurality of rotatably installed in the generator housing.
A wind generator comprising wings;
An aqueous floating body having a hollow portion formed therein to float on the water surface;
The hollow so as to generate a separate buoyancy even if seawater is introduced into the hollow portion
Receiving unit for receiving air in the unit;
Located on the upper surface of the floating body to support the structure in which the pillar is installed
versus;
Pedestal coupled to the bottom surface of the water floating body; Floating wind power generator characterized in that it comprises a.
The method of claim 1,
The pedestal of the floating body is made thicker and heavier than the thickness of the structure support and the floating body so that the center of gravity of the floating structure is lower than the buoyancy center of the floating structure so that the floating structure can float on the surface of the water. Water floating wind generator, characterized in that.
The method of claim 1,
And a fixed portion connected to the water floating body to prevent movement of the water floating body.
The method of claim 1,
The water floating wind generator, characterized in that the receiving portion of the water floating body to provide an air bag made of a rubber material to serve as an auxiliary float of the water floating body.
The method of claim 3, wherein
One end of the fixing part is provided as an anchor is fixed to the sea bottom, the body further comprises a connecting portion connected to the other end of the fixing part.

Images