Offshore wind power generation

Abstract

The present invention relates to an offshore wind power generation device, and aims to ensure that it is supported by being embedded in a mud layer so as not to be affected by the pressure of currents or waves, and to enable stable anchoring on the seabed through weight increase by mud, seawater, and filler, and to enable simple construction and reduced construction time. An offshore wind power generation device according to the present invention comprises: a steel pipe pile section, the lower end of which passes through a seabed mud layer and is supported on bedrock, and a plurality of which are bundled together while maintaining a spacing, with a movement passage formed inside; a fixing anchor section, which moves along the movement passage of each steel pipe pile section to reach bedrock, then proceeds along the upper part of the bedrock and is driven into and fixed in the mud layer, with a filling space formed inside; a weight increasing section that fills the filling space and increases the weight of the fixing anchor section; and a wind turbine installed on the upper part of the steel pipe pile section, which generates electricity while rotating by wind.

Description

Technology Field

[0001] The present invention relates to an offshore wind power generation device, and more specifically, to an offshore wind power generation device that is supported by being embedded in a mud layer, is hardly affected by the pressure of currents or waves, enables stable anchoring on the seabed through weight increase caused by mud, seawater, and filler, and allows for simple construction and reduced construction time. Background Technology

[0003] Today, as environmental pollution becomes increasingly serious due to the excessive use of fossil fuels, interest in eco-friendly new and renewable green energy is on the rise.

[0004] Although these new and renewable green energies have significant natural limitations and are less economically efficient compared to fossil energy, they are attracting attention as alternative energy sources because they are environmentally friendly and can solve the problems of fossil energy depletion and environmental pollution.

[0005] Among these new energy sources, wind power, a representative green energy source, is already in operation not only domestically but also overseas.

[0006] Wind power is characterized by the ability to harvest energy over a wide range of areas, regardless of whether it is inland or at sea, and by producing no byproducts.

[0007] Wind power generation devices, which produce electricity using wind power, operate on the basic principle of converting the energy of air flow resulting from pressure differences into mechanical energy, and using that mechanical energy to rotate a generator to generate electricity.

[0008] In the early days, wind power generation devices were primarily installed on land, but recently, cases of offshore installation have been increasing.

[0009] The reason is that the offshore wind quality is generally good, there are no complaints regarding operating noise, and it is easy to construct large-scale wind farms to ensure the economic viability of wind power generation.

[0010] Offshore wind power generation devices are classified into fixed and floating types. The fixed type involves driving piles into the seabed bedrock to secure the structure and supporting it on the piles. However, fixed power generation devices have a problem of reduced economic feasibility as the water depth increases, which significantly increases the cost of manufacturing and installing the structure due to the large size of the structure.

[0011] In contrast, floating power generation devices float on the sea surface while maintaining the tension of the mooring device, and have the advantage of not being limited in the size of the structure even as the water depth increases. However, they are heavily affected by currents and waves, which frequently causes damage such as cutting and increases maintenance and management costs.

[0012] Therefore, there is an urgent need to develop technology capable of generating electricity while stably anchored at sea, unaffected by currents or waves. Prior art literature

[0014] Registered Patent Publication No. 10-1659783 The problem to be solved

[0015] The present invention was devised to solve the problems of the aforementioned prior art, and aims to provide an offshore wind power generation device that is supported by being embedded in a mud layer, is hardly affected by the pressure of tides or waves, enables stable anchoring on the seabed through weight increase caused by mud, seawater, and filler, and allows for simple construction and reduced construction time. means of solving the problem

[0017] An offshore wind power generation device according to one embodiment of the present invention comprises: a steel pipe pile section, the lower end of which passes through a seabed mud layer and is supported on bedrock, and a plurality of which are bundled together while maintaining a spacing, with a movement passage formed inside; a fixing anchor section, which moves along the movement passage of each steel pipe pile section to reach bedrock, then proceeds along the upper part of the bedrock and is driven into and fixed in the mud layer, with a filling space formed inside; a weight increasing section that fills the filling space and increases the weight of the fixing anchor section; and a wind turbine installed on the upper part of the steel pipe pile section, which generates electricity while rotating by wind.

[0018] In addition, the steel pipe pile section maintains a state of spreading radially from the upper side to the lower side based on a virtual vertical central axis, and a discharge port is formed on the lower side of the steel pipe pile section that is connected to the moving passage and is used to pull out the anchoring section to the outside, and a discharge guide plate with an inclined structure is formed on the lower side of the moving passage to guide the anchoring section toward the discharge port.

[0019] Additionally, the anchoring unit comprises a plurality of anchor units connected in the longitudinal direction and fixed to the mud layer, wherein the anchor unit comprises: a main body portion having a hollow formed therein and at least one storage groove formed along its circumference for storing mud and / or seawater; a cover portion installed on the main body portion to cover the storage groove of the main body portion and having a plurality of inlet holes formed at regular intervals for introducing mud and / or seawater into the storage groove; a filling pipe each accommodated in the hollow of the main body portion, having a locking projection formed along the inner circumference of one side and the other side, and having a filling space formed therein for filling the weight-increasing portion; and reinforcing bar portions installed at regular intervals in the filling space of the filling pipe. The above-mentioned main body parts are connected in sequence and each is received in mutually opposing filling tubes and supported by the aforementioned stopper, and includes a ball part having a delivery hole formed therein for delivering the weight increase part to a filling tube located in the lower layer, and a corrugated tube part disposed between each of the above-mentioned main body parts, connecting the ball part, and having a delivery passage formed therein to be connected to the delivery hole for delivering the weight increase part within the delivery hole.

[0020] And, the above-mentioned anchoring part is rotatably coupled to the main body part through a rotation axis and maintains a folded state when the main body part moves forward along the movement passage, and unfolds by catching on mud when the main body part is pulled out to the outside through the discharge port and then moves backward; and further includes a rotation limiting part, one side and the other side of which are respectively fixed to the main body part and the locking part, and which limits the rotation angle of the locking part. Effects of the invention

[0022] The offshore wind power generation device according to the present invention is supported by being embedded in a mud layer, so it is hardly affected by the pressure of currents or waves, and can be stably anchored on the seabed through weight increase caused by mud, seawater, and filler, and has the effect of simple construction and reduced construction time. Brief explanation of the drawing

[0024] FIG. 1 is a side view illustrating an offshore wind power generation device according to one embodiment of the present invention. FIG. 2 is a cross-sectional view illustrating a anchoring portion applied to an offshore wind power generation device according to one embodiment of the present invention. FIG. 3 is a cross-sectional view illustrating the operation of a locking part and a rotation limiting part applied to an offshore wind power generation device according to one embodiment of the present invention. Figure 4 is an enlarged view of section A of Figure 1. Figure 5 is an enlarged view of section B of Figure 1. Figure 6 is an enlarged view of section C of Figure 1. Specific details for implementing the invention

[0025] The advantages and features of the present invention and the methods for achieving them will become clear by referring to the embodiments described in detail below together with the accompanying drawings.

[0026] However, the present invention is not limited to the embodiments disclosed below but may be implemented in various different forms. These embodiments are provided merely to ensure that the disclosure of the present invention is complete and to fully inform those skilled in the art of the scope of the invention, and the present invention is defined only by the scope of the claims. Throughout the specification, the same reference numerals refer to the same components.

[0027] Hereinafter, embodiments of the present invention will be described in detail with reference to the attached drawings so that those skilled in the art can easily implement the present invention. However, the present invention may be embodied in various different forms and is not limited to the embodiments described herein. Throughout the specification, similar parts are denoted by the same reference numerals.

[0028] FIG. 1 is a side view illustrating an offshore wind power generation device according to an embodiment of the present invention, FIG. 2 is a cross-sectional view illustrating a anchoring part applied to an offshore wind power generation device according to an embodiment of the present invention, FIG. 3 is a cross-sectional view illustrating the operation of a locking part and a rotation limiting part applied to an offshore wind power generation device according to an embodiment of the present invention, FIG. 4 is an enlarged view of part A of FIG. 1, FIG. 5 is an enlarged view of part B of FIG. 1, and FIG. 6 is an enlarged view of part C of FIG. 1.

[0029] An offshore wind power generation device (1) according to one embodiment of the present invention is an invention that can generate electricity using wind power while stably anchored underwater and is hardly affected by currents or waves.

[0030] To this end, an offshore wind power generation device (1) according to one embodiment of the present invention may include at least one of a steel pipe pile section (10), a anchoring section (20), a weight increase section (30), and a wind turbine (40).

[0031] A certain area of ​​the lower side of the steel pipe pile section (10) passes through the seabed mud layer (2) and is supported on the upper surface of the bedrock (3). The steel pipe pile section (10) is applied in multiple numbers to stably support the load of the wind turbine (40) and is bundled and connected to a spacing section placed above the water surface.

[0032] The spacing member can be formed in the shape of a circular plate or a polygonal plate.

[0033] A plurality of through holes are formed in the spacing section through which a steel pipe pile section (10) is installed.

[0034] The steel pipe pile section (10) maintains a state of spreading out radially with respect to a virtual vertical central axis as it goes from the upper side to the lower side. The steel pipe pile sections (10) are installed in the spacing section (14) to have an inclined surface that gradually spreads out as it goes from the top to the bottom. At this time, the vertical central axis is a virtual vertical axis perpendicular to the ground.

[0035] The upper portion of the steel pipe pile (10) protrudes upward from the spacing portion by passing through each through hole.

[0036] A passage (11) is formed inside the steel pipe pile section (10) through which the anchoring section (20) moves downward. The upper surface of the steel pipe pile section (10) is open so that the anchoring section (20) can be inserted into the passage (11). An outlet (12) connected to the passage (11) is formed on the lower surface of the steel pipe pile section (10). The anchoring section (20) can be discharged toward the bedrock (3) through the outlet (12).

[0037] And, on the lower side of the passage (11) of the steel pipe pile section (10), a discharge guide plate (13) with an inclined structure is formed to guide the descending anchor section (20) toward the discharge port (12).

[0038] The anchoring part (20), which descends through the passageway (11), has its direction of movement changed to the direction of the discharge port (12) by the discharge guide plate (13), and then passes through the discharge port (12) and moves into the interior of the mud layer (2).

[0039] A center steel pipe pile section (15) is further installed in the center of the spacing section.

[0040] The upper surface of the center steel pipe pile section (15) may be joined to the central part of the bottom surface of the spacing section, or, in the same way as the steel pipe pile section (10) described above, the upper region may penetrate the central part of the spacing section and protrude upward from the spacing section (14).

[0041] A certain area of ​​the lower side of the center steel pipe pile section (15) passes through the seabed mud layer (2) and is supported on the upper surface of the bedrock (3).

[0042] The center steel pipe pile section (15) and the plurality of steel pipe pile sections (10) can maintain a balanced standing state through interaction.

[0043] The aforementioned spacing member can be applied in multiple numbers to stably bundle and combine multiple steel pipe pile members (10) and a center steel pipe pile member (15).

[0044] In this case, the spacing member can be applied to the upper part, the central part, and the lower part of the steel pipe pile member (10) and the center steel pipe pile member (15), respectively.

[0045] Meanwhile, the anchoring section (20) is configured to provide non-powerful and holding power to the steel pipe pile section (10), thereby enabling the steel pipe pile section (10) to be stably anchored in the bedrock (3).

[0046] The anchoring section (20) is inserted into the passage (11) through the open upper portion of the steel pipe pile section (10), then lowered along the passage (11), then withdrawn to the outside of the steel pipe pile section (10) through the discharge port (12), and then extended longitudinally from the upper part of the bedrock (3) and fixed by being embedded in the mud layer (2), thereby providing stable fixing and anchoring force to the steel pipe pile section (10).

[0047] To this end, the anchoring section is applied in multiple numbers as shown in FIGS. 2 and 3, and includes multiple anchor units (21) that are connected in the longitudinal direction and, when advanced within the mud layer (2) by an external force, are unfolded and fixed by being embedded in the mud layer (2) when tensioned backward.

[0048] The anchor unit (21) is connected in the up and down or forward and backward directions and is connected so as to be bendable within a certain angle range. Specifically, the anchor unit (21) that precedes the anchor unit (21) and the anchor unit (21) that is connected immediately behind it can be bent within a certain angle range.

[0049] Also, the angle of bending is sufficient if it allows the anchor unit (21) to bypass or cross the uneven surface of the bedrock (3) when it is withdrawn from the outlet (12) and moves forward. For example, the angle of bending may be about 20 to 50 degrees.

[0050] The anchor unit (21) may include at least one of a main body part (211), a cover part (212), a filling tube (213), a reinforcing bar part (214), a connecting part (215), a locking part (22), a rotation limiting part (23), and a tensioner (50).

[0051] The main body (211) may be formed of metal or synthetic resin material.

[0052] The main body (211) can be formed in the shape of a cylinder or a polygonal column.

[0053] At least one storage groove (2111) is formed along the circumference of the main body (211) to store mud and / or seawater. Although the drawing shows an example in which the storage groove (2111) is formed only on one side and the other side of the main body (211), the storage groove (2111) can be applied as two or more or as one.

[0054] After the anchor unit (21) is withdrawn through the outlet (12) and embedded in the bedrock (3), mud and / or seawater are probabilistically stored in the storage groove (2111).

[0055] The weight of the main body (211) can be increased through mud and / or seawater stored in the storage groove (2111). This can help provide buoyancy and holding power to the steel pipe pile (10), thereby enabling the steel pipe pile (10) to be stably anchored in the bedrock (3).

[0056] And, along the length direction of the central part of the main body (211), a hollow (2112) is formed in which a filling tube (213), to be described later, is installed.

[0057] The cover portion (212) is installed on the main body portion (211) to cover the entrance side of the storage groove (2111) of the main body portion (211).

[0058] The cover portion (212) is received at the entrance side of the storage groove (2111), and the upper, lower, left, and right sides are joined through adhesive or welding.

[0059] In the cover portion (212), a plurality of inflow holes (2121) are formed at regular intervals to introduce mud and / or seawater into the storage groove (2111).

[0060] The diameter of the inlet hole (2121) can be formed to gradually narrow from one end facing the locking part (22) described later to the other end facing the storage groove (2111).

[0061] Through the diameter shape of the inlet hole (2121), mud and / or seawater can be easily passed through and quickly stored in the storage groove (2111), and the phenomenon of mud and / or seawater stored in the storage groove (2111) being discharged again through the inlet hole (2121) can be suppressed.

[0062] An offshore wind power generation device (1) according to one embodiment of the present invention can automatically store mud and / or seawater in a storage groove (2111) simply by fixing an anchor unit (21) to a rock (3) through the main body (211) and the cover (212), and as a result, the weight of the main body (211) can also be automatically increased.

[0063] The filling tube (213) is each accommodated in the hollow (2112) of the main body (211).

[0064] The filling tube (213) can be formed of a metal material or a synthetic resin material.

[0065] When the main body (211) and the filling tube (213) are formed of a metal material, the filling tube (213) is joined to the main body (211) through welding or adhesive.

[0066] When the main body (211) and the filling tube (213) are formed of a synthetic resin material, the filling tube (213) is joined to the main body (211) through an adhesive.

[0067] A stopper (2132) is formed along the upper and lower inner circumferences of the filling tube (213) on one side and the other side of the filling tube (213), that is, based on FIGS. 2 and 3, to prevent the ball portion (2151) described later from coming off.

[0068] Then, a filling space (2131) is formed inside the filling tube (213). The filling space (2131) is filled with a weight-increasing portion (30) to be described later. At this time, the weight-increasing portion (30) is a liquid material, and a certain amount is cured inside the filling tube (213), while the remainder flows down and is filled into the next filling tube (213), the ball portion (2151), and the corrugated tube portion (2152), respectively.

[0069] The reinforcing bars (214) are installed at regular intervals along the length of the filling space (2131).

[0070] The reinforcing bar section (214) is installed in multiple layers in the filling space (2131).

[0071] And, the reinforcing bar section (214) is applied in multiple numbers for each floor. In addition, the reinforcing bar section (214) is installed in a manner that is orthogonal to the up and down directions for each floor.

[0072] The reinforcing bar section (214) performs the function of a frame and is buried in the weight increase section (30) as the weight increase section (30) is cured.

[0073] The reinforcing bar section (214) suppresses the phenomenon of the weight increase section (30) flowing down to a certain level so that it can be filled in an appropriate amount in each filling pipe (213), ball section (2151), and corrugated pipe section (2152).

[0074] The connecting part (215) connects a plurality of main body parts (211) in a sequence and includes a ball part (2151) and a corrugated tube part (2152).

[0075] The ball portions (2151) consist of two pairs. The ball portions (2151) are each accommodated in the filling space (2131) of the filling tube (213) facing each other.

[0076] The ball portion (2151) is formed in a spherical shape. The ball portion (2151) is formed to have a diameter that can be caught on the catch (2132).

[0077] Due to the ball portion (2151), the main body portion (211) can be bent at a predetermined angle. Therefore, the main body portion (211) can be bent and easily withdrawn during the process of being withdrawn from the discharge port (12), and when proceeding in the forward direction after being withdrawn, it can bypass or go over the uneven surface of the bedrock (3).

[0078] A delivery hole (2151a) is formed inside the ball portion (2151) to deliver the weight increase portion (30) to the filling tube (213) located in the lower layer.

[0079] At this time, a certain amount of the weight increase portion (30) is cured in the transfer hole (2151a), and the remainder flows down and is filled into the filling space (2131) of the next filling pipe (213), the transfer hole (2151a) of the ball portion (2151), and the internal space of the corrugated pipe portion (2152), respectively.

[0080] The corrugated tube section (2152) is applied in multiple numbers and is placed between each main body section (211).

[0081] On one side and the other side of the corrugated tube section (2152), a straight tube section (21521) is formed that is connected to different ball sections (2151).

[0082] The corrugated tube section (2152) connects different ball sections (2151) as a single unit through the straight tube section (21521).

[0083] Inside the corrugated tube section (2152), a transfer passage (2152a) is formed to be connected to the aforementioned transfer hole (2151a) for transferring the weight increase section (30) within the transfer hole (2151a) to the next ball section (2151) and the filling tube (213).

[0084] The corrugated tube section (2152) is of the bellows type and has a structure that can be bent to a certain level by external force before the weight increase section (30) is filled.

[0085] When the main body parts (211) pass through the discharge port (12) via the aforementioned ball part (2151) and corrugated tube part (2152), they can be bent to a certain level by the discharge guide plate (13). As a result, the main body parts (211) can be easily drawn out by passing through the discharge port (12) sequentially.

[0086] And, when moving forward after being withdrawn, it can be made to bypass or go over the uneven surface of the bedrock (3).

[0087] The locking part (22) can be applied with at least two or more, and an example of application with two is shown in the drawing.

[0088] The locking part (22) can be placed on one side and the other side of the main body part (211), respectively.

[0089] One side of the locking part (22) is connected to the main body part (211) via a rotation axis (221). The locking part (22) can be rotated at a predetermined angle with respect to the rotation axis (221) in a direction closer to or further away from the main body part (211).

[0090] The other side of the locking part (22) can be formed into a pointed or sharp shape so that it can easily penetrate and embed into the mud layer (2), and an example formed in a roughly blade shape is shown in the drawing.

[0091] The locking part (22) maintains a folded state, that is, a state close to the main body (211), when moving forward (down) along the passage (11), and when the main body (211) is pulled out to the outside through the discharge port (12) and then moved backward, it is caught in the mud and rotated to unfold away from the main body (211).

[0092] One side of the rotation limiting part (23) is fixed to the main body part (211), and the other side is fixed to the locking part (22).

[0093] The rotation limiting part (23) can be applied with a wire that can be easily folded or unfolded without easily breaking.

[0094] The rotation limiting part (23) maintains a folded state together with the locking part (22) when the locking part (22) is folded. Then, the rotation limiting part (23) maintains an unfolded state together with the locking part (22) when the locking part (22) is unfolded, thereby limiting the unfolding angle of the locking part (22).

[0095] Accordingly, the locking part (22) cannot be opened more than the angle set by the rotation limiting part (23). At this time, the maximum opening angle of the locking part (22) is proportional to the length of the rotation limiting part (23).

[0096] Therefore, the maximum opening angle of the locking part (22) can be adjusted by adjusting the length of the rotation limiting part (23).

[0097] The anchoring sections (20) described above are lowered by being inserted into the passageway (11) through the upper open portion of each steel pipe pile section (10). At this time, the worker can insert the anchoring sections (20) into the passageway (11) of the steel pipe pile section (10) using the spacing section as a step.

[0098] The anchoring section (20) is continuously advanced until the main body (211) of the anchoring section (20b) located at the lowest level is withdrawn to the outside through the discharge port (12) and moves along the bedrock (3) by a calculated distance. At this time, the calculated distance is the distance until the sum of the maximum fixing force, holding force, and anchoring force that can be provided by all the main bodies (211) exposed from the steel pipe pile section (10) is greater than the force capable of stably supporting the wind turbine.

[0099] If the front part of the anchoring part (20) has been pulled out by a sufficient length from the discharge port (12) of the steel pipe pile part (10), the rear part of the anchoring part (20) is pulled up using a tensioner (50).

[0100] The tensioner (50) is installed at the top of the steel pipe pile section (10) and pulls up the main body (211) of the anchoring anchor section (20a) located at the top among the anchoring anchor sections (20) or the filling pipe (213) contained in the main body (211).

[0101] When the tensioner (50) pulls the anchoring part (20) upward, the main body part (211) located on the bedrock (3) moves backward, and as a result, the locking part (22) unfolds and gets embedded in the mud.

[0102] And, as the locking part (22) unfolds and gets embedded in the mud, the anchoring parts (20) no longer rise.

[0103] When the above process is completed, the main body (211) of the anchoring part (20a) located at the top is fixed to the inner wall surface of the steel pipe pile part (10) by welding or bolting.

[0104] At this time, when fixing with a bolt, the locking part (22) is removed from the main body part (211) of the anchoring part (20a) located on the top floor, and a hole through which the bolt can pass is formed in the steel pipe pile part (10) using a drill. In addition, holes are also formed with a drill in the main body part (211) of the anchoring part (20a) located on the top floor, the filling pipe (213) contained in the main body part (211), and the cover part (212) coupled to the main body part (211).

[0105] Then, a single bolt is passed jointly through the hole of the steel pipe pile section (10), the main body section (211), the filling pipe (213), and the hole of the cover section (212).

[0106] In this case, the bolt is supported on the steel pipe pile section (10), and the main body section (211), the filling pipe (213), and the cover section (212) are supported by the bolt in the passage (11) of the steel pipe pile section (10).

[0107] At this time, the bolt is formed to have a diameter that does not completely cover the filling space (2131) so as to allow it to pass through the weight increase portion (30).

[0108] At this time, the aforementioned anchoring section (20) may be applied in a single line or in two or more lines to each steel pipe pile section (10) moving passage (11).

[0109] Meanwhile, the weight increase part (30) is configured to increase the weight of the weight increase part (30) after applying the anchoring part (20) to the rock (3) as described above.

[0110] The weight increase portion (30) can be formed of underwater mortar or underwater concrete.

[0111] The ball portion (2151) is not applied to the filling tube (213) received in the main body portion (211) of the anchor portion (20a) located at the top layer.

[0112] And, a sealing plate (24) is installed at the end of the filling tube (213) contained in the main body (211) of the anchoring part (20b) located at the lowest level to prevent external leakage of the weight increase part (30).

[0113] At this time, the blocking plate (24) can be welded together in a manner that wraps around the catch (2132).

[0114] The weight increase part (30) is initially inserted into the filling tube (213) contained in the main body (211) of the anchoring part (20a) located at the top by a worker located in the gap maintenance part (14).

[0115] The weight increase portion (30) is injected at high pressure into the filling space (2131) of the filling pipe (213) housed in the main body portion (211) located at the top floor through a known concrete or mortar injector or pump.

[0116] The weight increase portion (30) flows down along the filling space (2131) of the filling pipe (213) of the main body portion (211) located at the top, fills the filling space (2131) of all filling pipes (213), the delivery hole (2151a) of all ball portions (2151), and the delivery passage (2152a) of all corrugated pipe portions (2152), and is cured as time elapses.

[0117] Through this weight increase section (30), the weight of all filling pipes (213), all ball sections (2151), and all corrugated pipe sections (2152) can be increased. Thus, strong buoyancy and holding power can be provided to the steel pipe pile section (10), allowing the steel pipe pile section (10) to be stably anchored in the bedrock (3).

[0118] Meanwhile, the wind turbine (40) is configured to generate electricity while rotating due to the wind.

[0119] The vertical column portion constituting the wind turbine (40) is installed in the central part of the upper surface of the spacing portion (14).

[0120] A wind turbine (40) includes a conventional generator (not shown) installed inside, a power generation unit (41) installed on the upper surface of a vertical column, a hub installed rotatably via an axis on one side of the power generation unit (41), and a plurality of rotating blades (42) fixed to the hub and rotating together with the hub. As the rotating blades (42) rotate due to wind power, the generator produces electrical energy. Since this wind turbine (40) is a commercially available product, a detailed description is omitted.

[0121] A person skilled in the art to which the present invention pertains will understand that the present invention may be implemented in other specific forms without altering its technical concept or essential features. Therefore, the embodiments described above should be understood as illustrative in all respects and not restrictive. The scope of the present invention is defined by the claims set forth below rather than by the detailed description above, and all modifications or variations derived from the meaning and scope of the claims and equivalent concepts should be interpreted as being included within the scope of the present invention. Explanation of the symbols

[0123] 1 : Offshore wind power generator 10 : Steel pipe pile section 11: Passageway 12: Outlet 13: Discharge guide plate 14: Gap maintaining part 15: Center steel pipe pile section 20: Anchoring anchor section 21 : Anchor Unit 211 : Main Body 2111 : Storage Home 2112 : Hollow 212: Cover part 2121: Inlet hole 213 : Filling tube 2131 : Filling space 2132 : Stopper 214 : Rebar section 215 : Connection part 2151 : Ball part 2151a : Delivery hole 2152 : Corrugated tube section 2152a : Transmission passage 21521 : Straight pipe section 22 : Locking part 221 : Rotating shaft 23 : Rotation limiting part 24 : Blocking plate 30 : Weight increase section 40 : Wind turbine 41: Power generation unit 42: Rotating blade 50 : Tensioner

Claims

Claim 1 A steel pipe pile section having a lower portion that passes through the seabed mud layer and is supported on the bedrock, with multiple portions bundled and connected while maintaining a spacing, and having a movement passage formed inside; a fixing anchor section that moves along the movement passage of each steel pipe pile section to reach the bedrock, then proceeds along the upper part of the bedrock and is driven into and fixed in the mud layer, with a filling space formed inside; and a weight increasing section that fills the filling space and increases the weight of the fixing anchor section. and includes a wind turbine installed on the upper part of the steel pipe pile section and generating electricity while rotating by wind; the anchoring section includes a plurality of anchor units connected in the longitudinal direction and fixed to a mud layer; the anchor unit comprises: a main body section having a hollow formed therein and at least one storage groove formed along the circumference for storing mud and / or seawater; a cover section installed on the main body section to cover the storage groove of the main body section and having a plurality of inflow holes formed at regular intervals for introducing mud and / or seawater into the storage groove; a filling pipe each received in the hollow of the main body section, having a stopper formed along the inner circumference of one side and the other side, and having a filling space formed therein for filling the weight-increasing section; a reinforcing bar section installed at regular intervals in the filling space of the filling pipe; a ball section that connects the main body sections in a sequence, each received in opposing filling pipes, supported by the stopper, and having a transfer hole formed therein for transferring the weight-increasing section to a filling pipe located in the lower layer; and the main body sections An offshore wind power generation device comprising a connecting part including a corrugated pipe section that is arranged at intervals, connects the ball section, and has a transmission passage formed therein to be connected to the transmission hole for transmitting the weight increase section within the transmission hole. Claim 2 An offshore wind power generation device according to claim 1, wherein the steel pipe pile section maintains a state of spreading radially from the upper side to the lower side with respect to a virtual vertical central axis, the lower side of the steel pipe pile section is connected to the moving passage and has an outlet formed to pull out the anchoring anchor section to the outside, and the lower side of the moving passage has an inclined discharge guide plate formed to guide the anchoring anchor section toward the outlet. Claim 3 delete Claim 4 In paragraph 2, the anchoring portion is rotatably coupled to the main body portion through a rotation axis, and at least one locking portion is maintained in a folded state when the main body portion moves forward along the movement passage and unfolds by catching on mud when the main body portion is pulled out to the outside through the discharge port and then moves backward; and further comprises a rotation limiting portion having one side and the other side fixed to the main body portion and the locking portion, respectively, and limiting the rotation angle of the locking portion.

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