KR20200114517A - Rotating type offshore structure and construction method, and power generation system using the same - Google Patents

Abstract

The present invention relates to a rotary offshore structure, a construction method thereof, and a power generation system using the same, and more specifically, to a rotary offshore structure, a construction method thereof, and a power generation system using the same, wherein a foundation pillar is formed in the river bed or the sea bed using rock bolt anchors, and the rotary offshore structure including a rotary pillar that rotates by the force of water flowing around it is installed, so that power generation efficiency is increased by converting the power of water flowing in any direction into rotational energy in response to tides and ocean currents at high flow rates while being simply constructed. To this end, the rotary offshore structure including the foundation pillar with a foundation base, the rock bolt-type anchor, a support pillar, and the rotary pillar having a blade unit is installed, and is rotated by the force of flowing water to generate power.

Description

Rotating type offshore structure and construction method, and power generation system using the same}

The present invention relates to a rotary offshore structure, a construction method thereof, and a power generation system using the same, and more particularly, to form a foundation pillar using a rock bolt anchor on a river bed or a sea bed, and rotate by the force of water flowing around it. Rotating offshore structures including rotating pillars are designed to increase power generation efficiency by converting the power of water flowing in any direction into rotational energy in response to fast currents and currents while being easy to install. , It relates to a construction method and a power generation system using the same.

In general, water in rivers or seas has a property of constantly flowing in various directions.

In addition, tidal power generation is a power generation method that converts potential energy and kinetic energy resulting from the water level difference between tide and tide into electric energy.

Korea is surrounded by rivers and seas, and has an area with a large difference in tide and tide, so the quality and quantity of energy flowing from the currents and currents is beyond imagination.

The power generation method using such a flow of water is a market that has endless applications in the future.

These power generation devices are presented in various forms.

Until now, the technology developed to settle the sea floor of tidal current generators and ocean current generators around the world is using heavy steel structures and offshore structures such as caissons.

However, such an offshore structure is bulky and obstructs the rapid flow of currents and ocean currents, thereby reducing the use of current and ocean current energy, and when installed, the rock layer on the sea floor is severely curved, making it difficult to work and precise construction.

In addition, it was a big problem that the installed offshore structures and tidal currents and current power generation facilities were difficult to maintain and the support base was poor, so the amount of power generation was small compared to the investment cost.

For example, maintenance of tidal current power generation devices installed on offshore structures such as caissons is done by moving the tidal current power generation device to land using an offshore crane, etc., and then relocating it to the sea floor when the process is completed, or unmanned underwater work. There is a problem that excessive cost is required and the maintenance period is lengthened, such as being performed using a device (Remote Operating Vessel, ROV), etc.

In addition, algae and ocean current power generation devices installed in offshore structures such as caissons using heavy objects are like trees without roots.

The power of powerful tide and ocean current energy is equivalent to a typhoon at an average speed of 3,000 km/h. If a heavy caisson of 1,000 t is installed on the sea floor, an average of 200 t tide and ocean current energy loss occurs.

In addition, conventionally, a heavy body made on the ground was selected using a barge, etc., then settled on the sea floor, and then filled with concrete to use tide and ocean current energy, but only the tide and ocean current energy utilization was reduced.

In addition, conventionally, there has been a structure in which a tidal current generator having a buoyant body in an offshore structure is connected with a wire or the like.

However, such a conventional offshore structure has a problem in that precise construction and stable installation and support are difficult due to the current of a fast flow rate.

Looking at an example of the prior art for solving this problem, first, a compaction process and a selection process are performed in order to increase the strength of the rubble foundation. Related inventions include patent application No. 10-1999-0043658, patent application No. 10-2003-0062926, and patent application No. 10-2008-0033494.

These prior technologies are for work such as selecting a foundation for sandstone on the sea floor and for work such as consolidating a support base, but there is a problem in that precise construction is difficult due to the settlement problem of the sandstone and rapid flow velocity and wave, and the construction period and construction cost increase.

Accordingly, in power generation using the flow of water, which is pointed out as one of the important alternative energy in the future, the maintenance of offshore structures and power generation devices, and the formation of the foundation on which power generation devices are installed, are becoming very important and have to be solved. There is a need for an alternative to this.

In addition, there is a need to develop an offshore structure including a supporting base capable of increasing the maximum power generation efficiency in a minimum sea area, a construction method thereof, and a power generation system.

Korean Registered Patent Publication No. 10-0339036 (announced on May 31, 2002) Korean Registered Patent Publication No. 10-0651697 (announced on December 6, 2006) Korean Registered Patent Publication No. 10-0985647 (2010.10.05. Announcement)

The present invention was conceived to solve the above-described problem, and to increase power generation efficiency by maximizing the power of water flowing in a river or sea, a foundation pillar is formed using a rock bolt anchor in a river bed or a sea bed, and By installing a rotating offshore structure including a rotating column that rotates by the force of water flowing, it is easy to construct and responds to currents and currents at a fast flow rate, and converts the power of water flowing in any direction into rotational energy to improve power generation efficiency. Its purpose is to provide a rotating offshore structure made to be improved, a construction method thereof, and a power generation system using the same.

In order to achieve the above object, a rotational offshore structure according to the present invention, a construction method thereof, and a power generation system using the same are described.

The present invention includes a foundation pillar of a pipe structure supported by a foundation base of a heavy body formed at the lower end in an integral manner; A rock bolt type anchor that penetrates the center of the foundation pillar and is embedded in the seabed to support the foundation pillar; A support pillar including a foundation pillar therein, a lower portion coupled to an upper portion of the foundation base, and an upper portion coupled to and supporting the lower portion of the upper structure; A rotary marine structure comprising a rotating offshore structure having a plurality of blades hingedly rotating outward in the longitudinal direction and having a rotating pillar that generates power while rotating around the support pillar by the force of water flow. We present a power generation system using structures.

On the other hand, if necessary, the rotary type offshore structure has a spacing according to the setting and a plurality of them are installed on the seabed.

And, in one embodiment, the base base is integrally communicated with the lower end of the base pillar, but has an inclined surface from the upper side to the lower side to form a through hole.

On the other hand, the rock bolt type anchor has an anchor head constituting the tip and an anchor shaft rod extending from the anchor head, and is fixed to the base base by a tightening nut that is tightened to an inclined surface along the lower threaded portion of the anchor shaft rod. It includes an expansion wing that expands from the anchor head according to the tightening of and is stuck in the seabed.

And, as an embodiment, the foundation pillar is composed of a foundation pipe having a length, and further includes an extension pipe connected to the upper portion of the foundation pipe to correspond to the height of the neighboring foundation pillar.

On the other hand, the support column has a cylindrical shape and has a spline portion to be coupled to the foundation base and the upper structure.

In addition, the support column is configured to include a bearing at a position in contact with the rotating column to facilitate rotation.

On the other hand, the rotating pillar has a plurality of upper and lower support portions having through holes having a size including the support pillars, and a plurality of hinges rotating by the force of water flowing by combining the upper and lower portions with the hinge shaft formed in the vertical direction. The wing part and the stopper part that the rear end of the wing spread outward to have a set angle by hinge rotation is hooked and supported, and the locking part that supports the tip so that the tip of the wing part folded inwardly protruding outward by hinge rotation Including.

In one embodiment, the stopper part has a bar shape connecting the upper support part and the lower support part.

On the other hand, the construction method of the rotary offshore structure is as follows.

The method of constructing a rotary offshore structure includes a foundation construction step of installing a foundation pillar by installing a pillar pipe supported by the submarine layer by a lower integral foundation base and a rock bolt-type anchor that penetrates the interior and is embedded in the seabed; To install a rotating offshore structure with a support column that is supported by including the foundation column installed by the foundation construction step inside, and a rotating column that generates power while rotating by the force of water flow, including the support column inside. It includes the step of constructing a rotating offshore structure.

Specifically, the foundation construction step includes a location search and topography identification process for checking a bottom topography including a location and height of the seabed where the foundation base is to be placed; Adjusting the shape of the foundation base according to the topography of the bottom of the seabed at the location to be installed, and adjusting the shape of the pillar pipe and the length of the pillar pipe to have a set height; A column pipe installation process of placing and lowering the column pipe to a set position on the sea floor using a barge; And a rock bolt anchor installation process of installing a rock bolt anchor so as to be embedded in the perforated sea bed while penetrating through the column pipe after drilling the seabed using an excavation device into the column pipe.

On the other hand, the step of constructing a rotary offshore structure includes: assembling a rotary offshore structure in which the rotary pillars are rotatably coupled around the support pillars; It includes a process of installing a rotating offshore structure to be coupled to the upper part of the foundation base while moving the rotary offshore structure to the position of the foundation pillar using a barge, and lowering the support pillar so that the foundation pillar is inserted.

If necessary, the step of constructing a rotary offshore structure further includes a process of installing an upper structure for supporting the power generation facility above the rotary offshore structure installed at intervals according to the setting.

As described above, the rotating offshore structure according to the present invention, the construction method thereof, and the power generation system using the same, form a foundation pillar using rock bolt anchors in the river bed or the sea bed, thereby providing a stable support structure that withstands the maximum force with a minimum volume. It has the effect of easy construction of the structure.

In addition, by installing a rotational offshore structure including a rotating column that forms a foundation column and rotates by the force of water flowing around it, the force of water flow in any direction in response to rapid currents and currents It has the effect of maximizing power generation efficiency by converting to.

1 is a schematic view showing a power generation system including a rotary offshore structure according to the present invention.
2 is a schematic view showing a rotating pillar constituting a rotating offshore structure according to the present invention.
3 is a schematic view showing that the rotating pillar according to FIG. 2 rotates in response to various water directions.
4 is a view showing the installation of a foundation pillar using a rock bolt type anchor of a power generation system including a rotary offshore structure according to the present invention.
5 is a view showing an embodiment of a rotary offshore structure according to the present invention.
6 is a flowchart showing a method of constructing a rotating offshore structure according to the present invention.

Hereinafter, preferred embodiments of a rotating offshore structure according to the present invention, a construction method thereof, and a power generation system using the same will be described in detail with reference to the accompanying drawings.

In addition, in the description of the present invention, the upper or upper portion shall indicate a portion having a height or a direction thereof with respect to the supported seabed, and the lower or lower portion shall indicate the opposite portion or direction thereof. .

In addition, in describing the present invention, detailed descriptions of related air functions or configurations will be omitted so as not to obscure the subject matter of the present invention.

As shown, the rotating offshore structure according to the present invention, the construction method thereof, and the power generation system using the same, form a stable support structure capable of withstanding the maximum force with a minimum volume, and control the force of water flowing in the river or sea. It is made to maximize power generation efficiency.

In other words, the foundation pillar 11 is formed on the river bed or the submarine layer (hereinafter referred to as'submarine layer') using the rock bolt anchor 13 and rotates by the force of water flowing around it. By installing the rotary offshore structure 10 including a, it has a stable support structure, but is easy to construct and responds to currents and currents at a fast flow rate, and converts the power of water flowing in any direction into rotational energy to improve power generation efficiency. You can increase it.

This power generation system is made by installing the upper structure 20 on the support base of the rotary offshore structure 10, and installing the facility device 30 required for power generation on the upper structure 20.

On the other hand, if necessary, the rotary type offshore structure 10 has a spacing according to the setting, and a plurality of them are installed based on the seabed (F), and between the offshore structures 10 and the offshore structures 10 located with such gaps By forming a flow path, it induces the direction in which water flows, thereby increasing the flow rate and further maximizing the power generation efficiency.

First, referring to FIGS. 1 to 5, a specific embodiment of a rotary offshore structure 10 according to the present invention and a power generation system using the same will be described below.

As shown, the rotary type offshore structure 10 according to the present invention is largely a foundation pillar 11 and a rock bolt type anchor 13 for fixing and supporting the foundation pillar 11 to the seabed F, And a support pillar 14 installed with the foundation pillar 11 as a central axis, and a wing portion 15-2 that is unfolded or folded by the force of water flowing, and rotates around the support pillar 14 It comprises a rotating column (15) to produce.

First, the foundation pillar 11 is a pipe structure including the foundation base 12 of a weight body integrally at the lower end, and is supported by the subsea layer F by the foundation base 12.

The foundation base 12 is supported while in contact with the seafloor F, and the foundation pillar 11 has a length according to the setting.

And, these foundation pillars (11) are installed on the seabed rock layer (F) using a SEP barge at the point where the seabed layer (F) will be installed, and more strongly to the seabed layer (F) using a rock bolt type anchor (13). Is fixed against.

In other words, the rock bolt type anchor 13 penetrates the center of the foundation pillar 11 and is embedded in the subsea layer F to support the foundation pillar 11.

Specifically, the correlation between the basic pillar 11 and the rock bolt type anchor 13 will be described in detail with reference to FIG. 4.

The foundation pillar 11 has a pipe shape, and the foundation base 12 is integrally configured at the bottom.

In addition, the foundation base 12 is placed on the bottom layer F and serves to prevent the foundation pillar 11 from being separated or damaged left or right by shaking due to the current or current.

On the other hand, such a base base 12 is preferably integrally communicated with the lower end of the base column 11, but has an inclined surface 12a-1 from the top to the bottom and has a base hole 12a penetrating therethrough.

In addition, the base hole 12a is penetrated to perforate the submarine rock layer F, and the column pipe 11a is supported by the submarine rock layer F using a rock bolt type anchor 13.

The above-described rock bolt anchor 13 is a technology that the applicant of the present invention has already disclosed and has received registration and has a right, and a detailed description of the technology is provided in Korean Patent Application Publication No. 10-1133431, Korean Patent Publication No. 10- As described in 1156501 and Korean Patent Publication No. 10-1376534, a detailed description of the configuration will be omitted so as not to obscure the subject matter of the present invention.

However, a rock bolt-type anchor 13 that penetrates from the top of the foundation pipe 11a forming the foundation pillar 11 and penetrates the base hole 12a of the foundation base 12 and is embedded in the seabed layer F Referring again to FIG. 4, the anchor head 13a constituting the tip end and the anchor shaft rod 13c extending from the anchor head 13a are provided, and the anchor head 13a is inserted into the rock layer according to the operation. It includes an expansion wing (13b).

At this time, the tightening nut 13d is provided to be coupled along the lower threaded portion 13c-1 formed under the anchor shaft bar 13c, and the tightening nut 13d is coupled with the lower threaded portion 13c-1, Depending on the structure of the anchor 13, the expansion blade 13b serves to expand and open.

In addition, the tightening nut 13d presses the inclined surface 12a-1 formed in the base hole 12a of the foundation base 12 from the top to the bottom to tighten the rock bolt type anchor 13 to the column pipe 11a And to be integrated with the base base 12 and to support the column pipe (11a) and the base base 12 while digging into the seabed.

In other words, the column pipe (11a) is mounted so that the foundation base (12) is located on the upper surface of the seabed (F) at the set location point, and the rock bolt-type anchor (13) is installed, and the tightening nut (13d) is tightened. While pressing the inclined surface 12a-1 of the foundation base 12, the rock bolt-type anchor 13 is mounted and fixed inside the perforated seabed while the expansion wing 13b is opened.

As described above, the foundation pillar 11 using the pillar pipe 11a installed as described above is installed with a plurality of positions and intervals to constitute a rotating offshore structure 10, the foundation pillar 11 being a pillar It is configured to further include an extension pipe (11b) to be adjusted to correspond to the height of the base pillar (11) adjacent to the upper portion of the pipe (11a).

Accordingly, the foundation pillar 11 may have the same height as the neighboring foundation pillar 11.

According to this structure, the foundation pillar 11 forming the basis of the rotary offshore structure 10 includes a column pipe 11a supported by the seabed F, and an extension pipe extending to the top of the column pipe 11a. Has (11b).

On the other hand, this extension pipe (11b) is connected integrally while forming the connection portion (11b-1) through a method such as welding on the upper portion of the column pipe (11a), or the connection portion (11b-1) using a separate fixing member such as a clamp. ) Can be configured to extend.

The length of each of the extension pipes 11b may vary according to the length of each of the pillar pipes 11a, and of course, the height may be adjusted by cutting as necessary.

Meanwhile, referring to FIG. 5, the rock bolt-type anchor 13 penetrating the column pipe 11a constituting the foundation column 11 includes an upper threaded portion 13c-2 formed on the upper portion of the anchor shaft bar 13c. It is securely integrally fixed to the column pipe 11a using a fastening nut 13e and a fixing bracket 13f.

Accordingly, the foundation pillar 11 forms the basis of the rotary offshore structure 10 and withstands the maximum force while having the minimum volume and only the structure in which the rock bolt-type anchor 13 is installed without the need to pour concrete. I can.

In addition, since the installation and structure are simple as described above, it has the effect of shortening the construction period and manpower and significantly lowering the construction cost.

Referring again to FIG. 5, the support pillar 14 constituting the rotary offshore structure 10 according to the present invention includes the foundation pillar 11 in a hollow cylindrical shape, and the lower part is the foundation base 12 ), the upper part is coupled to the lower part of the upper structure 20 and supported.

For this purpose, the base base 12 and the support column 14, the support column 14 and the upper structure 20 that are in contact with each other have spline portions 14a and 14b to facilitate coupling.

In addition, the support column 14 has a structure including a required number of bearing portions 14c at a position in contact with the rotation column 15 to facilitate rotation of the rotation column 15 to be described later.

The support column 14 is a weight body having a set weight and provides a support base for the offshore structure 10 and the upper structure 20 with the foundation column 11 as a central axis.

Next, referring to FIGS. 2 to 5, the rotating pillar 15 constituting the rotating offshore structure 10 according to the present invention includes a plurality of wing portions 15-2 that hinge outward in the longitudinal direction. Thus, electric power is generated while rotating the support column 14 around the central axis by the force of water flowing.

The rotational energy of the rotating pillar 15 is transmitted by the connection structure between the upper structure 20 and the power generation facility device 30, and the structure and configuration for producing such rotational energy as electric power is a known technique, and a detailed description is provided in the present invention. It will be omitted in order not to obscure the gist of

Meanwhile, referring to FIG. 2, the rotating pillar 15 is a specific embodiment, and the upper support portion 15-1 and the lower support portion 15 having a through hole 15a having a size including the support pillar 14 are formed. -2), and a plurality of wing parts (15-3) that are hinged by the force of water flowing by combining the upper and lower parts to the hinge shaft (15b) formed in the vertical direction, and the hinge rotates to have a set angle. The stopper portion 15-4, which is supported by hooking the rear end 15-3c of the wing portion 15-3 extending outwardly, and the tip 15 of the wing portion 15-3 folded inward by rotating the hinge -3a) is configured to include a locking portion (15-5) for supporting the tip (15-3a) so that it protrudes outward.

The stopper part 15-4 may be presented in a bar shape connecting the upper support part 15-1 and the lower support part 15-2.

According to this configuration, the wing portion (15-3) is folded by the flow of water, and the front end (15-3a) is pushed and hinged to unfold, and the rear end (15) is rotated continuously by the force according to the flow of water. As -3c) is caught by the stopper part 15-4 and supported, the hinge no longer rotates and remains unfolded.

And, by the force transmitted by the continuous water flow, the wing portion 15-3 fully receives the force, and the rotating column 15 rotates the support column 14 by this force.

The configuration of the stopper portion 15-4 and the locking portion 15-5 described above is one embodiment, and if the structure and configuration control the hinge rotation radius of the wing portion 15-3, various embodiments may be used. Of course it can be configured.

In the illustration, the stopper portion 15-4 has a cylindrical bar shape having a length and is integrally formed between the upper support portion 15-1 and the lower support portion 15-2, and the rear end of the wing portion 15-3 ( 15-3c) was formed along the longitudinal direction of the wing portion 15-3 in a groove shape having a semicircular structure corresponding to the shape of the spipper portion 15-4.

In addition, the wing portion (15-3) has a plate shape in which the water flow direction side is concave to form a curved surface, and the locking portion (15-5) has a tip (15-3c) of the wing portion (15-3) When folded, it has a block shape formed so as to protrude outwardly and protrude to a lower position of the upper support part 15-1 and an upper position of the lower support part 15-2 at positions corresponding thereto.

On the other hand, the hinge shaft (15b) described above can be variously applied as long as it is a shape that is hingeably coupled to the hinge portion (15-3b) of the wing portion (15-3), as well as, as an embodiment, a hinge The shaft 15b is presented in a bar shape protruding from the lower part of the upper support part 15-1 and the upper position of the lower support part 15-2, and the hinge part 15-3b of the wing part 15-3 ) Is presented as a groove shape into which the hinge axis is inserted.

This hinge shaft (15b) has a structure coupled while passing through the upper support (15-1) or the lower support (15-2).

According to this configuration, the rotary type offshore structure 10 according to the present invention is easily fixed to the seabed F by a rock bolt type anchor 13 and supported, and the rotating pillar 15 is front and rear. In response to the flow of water occurring in either left or right position, the wing part (15-3) is hinged and unfolded, and as it rotates around the support column (14), water in any direction responds to currents and currents at a fast flow rate. This flowing force is converted into rotational energy to maximize power generation efficiency.

Next, a more detailed look at the construction method of the rotary offshore structure according to the present invention with reference to FIG. 6 is as follows.

As shown, the rotary offshore structure 10 for configuring the power generation system according to the present invention is installed in the seabed (F) through the basic construction step (S1) and the offshore structure construction step (S2).

At this time, the foundation construction step (S1) is a pillar pipe supported by the submarine layer (F) by the lower integrated foundation base 12 and the rock bolt type anchor 13 that penetrates the inside and is embedded in the seabed layer (F). This is the step of installing the columnar column 11 by installing 11a).

In addition, the rotary offshore structure construction step (S2) includes a support column 14 and a support column 14 that are supported by including the column column 11 installed at the position set by the foundation construction step S1. This is the step of installing a rotating pillar 15 that generates electric power while rotating by the force of water flowing inside it.

First, looking at the basic construction step (S1) in more detail as follows.

As shown, the foundation construction step (S1) includes a location search and topography grasp process (S11), a foundation base shape and column pipe length adjustment process (S12), a column pipe installation process (S13), and a rock bolt anchor It is made including the installation process (S14).

The location search and topography identification process (S11) is a process of confirming the bottom topography including the location and height of the foundation base 12 on the underwater seabed (F).

In order to construct the rotary offshore structure according to the present invention, a crane barge for offshore work, specifically an SEP barge is used.

In such a barge, the location and shape of the seafloor F in which the rotating offshore structure 10 is to be installed is identified using a search device.

And, in the process of adjusting the shape of the foundation base and the length of the column pipe (S12), when the foundation base 12 is settled on the sea floor by adjusting the shape of the foundation base 12 according to the topography of the bottom layer F of the location to be installed It enables stable support.

The seafloor includes most rock layers in the portion where the flow velocity is high, and the foundation base 12 is preferably manufactured based on the irradiation set to suit the seafloor.

In other words, the foundation base 12 is bent or molded according to the topographic shape of the seabed F to be located.

And, the length of the pillar pipe 11a having the foundation base 12 integrally adjusted to have a set height.

This basic base shape and the column pipe length adjustment process (S12) is made on the offshore barge.

Subsequently, the column pipe installation process (S13) is a process of placing and lowering the column pipe 11a to a set position of the seafloor F using a barge.

SEP (Self Elevating Platform) barge, which is a type of water barge, is used.SEP barge is a barge that can be fixed to the solid ground in the water by attaching a fixing device (Leg) to the barge. Lift the gap and fix it, then perform the task.

Accordingly, the column pipe 11a is positioned using a device such as a crane provided on the barge so that it is at a set height above the barge that is not affected by water.

Subsequently, the rock bolt anchor installation process (S14) is performed, which drills the seabed rock layer (F) using an excavation device into the column pipe (11a), and then penetrates the column pipe (11a) constituting the foundation column (11). It is a process of installing the rock bolt anchor 13 so as to be embedded in the perforated seabed rock layer (F).

As described above, the rock bolt anchor 13 is a technology that has already been disclosed and registered by the applicant of the present invention, and a detailed description of the configuration will be omitted so as not to obscure the gist of the present invention.

As described above, the pillar pipe 11a is mounted so that the foundation base 12 is located on the upper surface of the seabed F at the set location point, and the rock bolt type anchor 13 is installed, while tightening the tightening nut The inclined surface 12a-1 of the foundation base 12 is pressed, and the rock bolt-type anchor 13 is embedded and fixed inside the perforated seabed F while the expansion wing 13b is opened.

And, if necessary, it includes a base post adjustment and extension installation process (not shown).

In the process of adjusting and extending the foundation pillar, the height of the foundation pillar 11 adjacent to the foundation pillar 11 using the pillar pipe 11a is connected to the upper portion of the pillar pipe 11a to increase the height of the same line. It is the process of adjusting to have.

This installation process is a process made to facilitate the installation of the upper structure 20 on the upper part, and the upper part of the foundation pillar is located protruding above the water surface at a set height, and the extension installation process of the extension pipe 11b is performed on the water surface. Therefore, it is not affected by the flow of water, and stable installation is achieved.

Subsequently, referring to FIG. 6 again, a rotating offshore structure construction step (S2) will be described as follows.

The offshore structure construction step (S2) includes a rotational offshore structure assembly process (S21) and a rotational offshore structure installation process (S22), followed by a superstructure installation process (S23).

The assembly process of the rotary offshore structure (S21) is a process of preparing the support pillar 14 having the above-described structure, and combining the rotary pillar 15 so as to be rotatable around the support pillar 14.

And, in the installation process of the rotary offshore structure (S22), the assembled rotary offshore structure 10 is moved to the position of the foundation pillar 11 using a barge, and the foundation pillar 11 is inserted into the support pillar 14 It is installed to be coupled to the upper part of the foundation base 12 while lowering the support column 14 as possible.

If necessary, a foundation construction step (S1) of erecting a plurality of foundation pillars 11 at intervals and positions according to the setting is performed, and the rotary offshore structure 10 is constructed at a location and number corresponding to the foundation pillars 11. It has a rotating offshore structure construction step (S2) to be installed.

On the other hand, the rotary offshore structure construction step (S2), the installation process of the upper structure to install the upper structure 20 supporting the power generation facility device 30 above the rotary offshore structure 10 installed at intervals according to the setting ( S23) is further included.

As described above, the rotating offshore structure according to the present invention, the construction method thereof, and the power generation system using the same, form the foundation pillar 11 using the rock bolt anchor 13 on the seabed, so that it can withstand the maximum force with a minimum volume. The support structure makes it easy to construct offshore structures.

In addition, by installing a rotational offshore structure including a rotating column that forms a foundation column and rotates by the force of water flowing around it, the force of water flow in any direction in response to rapid currents and currents Power generation efficiency is maximized by switching to.

The present invention described above is limited to the above-described embodiments and the accompanying drawings because various substitutional modifications and changes can be made within the scope of the present invention to those of ordinary skill in the art. It does not become.

10: rotary offshore structure
11: foundation pillar
12: foundation base
13: Rock bolt type anchor
13a: anchor head
13b: expansion wing
14: support pillar
15: rotating pillar
15-3: wing
20: upper structure
30: power plant equipment
F: bottom layer

Claims (10)

A foundation pillar 11 of a pipe structure supported by the submarine layer F by the foundation base 12 of the weight body formed at the lower end in an integral manner;
A rock bolt type anchor 13 that penetrates the center of the foundation pillar 11 and is embedded in the submarine layer F to support the foundation pillar 11;
A support pillar 14 including the foundation pillar 11 inside, a lower portion coupled to the upper portion of the foundation base 12, and an upper portion coupled to and supporting the lower portion of the upper structure 20;
A rotor with a rotating pillar 15 that generates power while rotating the support pillar 14 around the central axis by the force of water flowing by having a plurality of wing portions 15-2 that hinge outward in the longitudinal direction. A power generation system using a rotary offshore structure, characterized in that it comprises a typical offshore structure (10).
The method of claim 1,
The rotational offshore structure (10) is a power generation system using a rotational offshore structure, characterized in that a plurality of installed on the seabed (F) having a spacing according to the setting.
The method of claim 1,
The foundation base 12,
It is integrally communicated with the lower end of the base pillar 11, but has an inclined surface 12a-1 from the upper side to the lower side to form a penetrating base hole 12a,
The rock bolt type anchor 13,
An anchor head (13a) constituting the tip and an anchor shaft rod (13c) extending from the anchor head (13a), and the inclined surface (12a-) along the lower threaded portion (13c-1) of the anchor shaft rod (13c) 1) is fixed to the base base 12 by a tightening nut (13d) that is tightened by the tightening nut (13d), and spreads while being expanded from the anchor head (13a) to get stuck in the seabed (F). Power generation system using a rotating offshore structure, characterized in that it comprises an expansion blade (13b).
The method of claim 2,
The foundation pillar 11,
Consisting of a foundation pipe (11a) having a length, characterized in that the configuration further comprises an extension pipe (11b) extending to the upper portion of the foundation pipe (11a) to correspond to the height of the neighboring foundation pillar (11) Power generation system using a rotating offshore structure.
The method of claim 1,
The support column 14,
It has a cylindrical shape, and has spline portions 14a and 14b so as to be coupled to the foundation base 12 and the upper structure 20,
A power generation system using a rotating offshore structure, characterized in that the rotating pillar (15) is configured to include a bearing (14c) in a contact position to facilitate rotation.
The method of claim 1,
The rotating pillar 15,
An upper support portion 15-1 and a lower support portion 15-2 having a through hole 15a having a size including the support pillar 14,
A plurality of wing portions 15-3 that are hingedly rotated by the force of water flowing by combining the upper and lower portions with the hinge shaft 15b formed in the vertical direction,
A stopper part 15-4 which is supported by hooking and supporting the rear end 15-3c of the wing part 15-3 spread outward so as to have a set angle by hinge rotation,
It is characterized in that it comprises a locking portion (15-5) that supports the tip (15-3a) such that the tip (15-3a) of the wing (15-3) folded inward by hinge rotation is protruded outward. Power generation system using a rotating offshore structure.
The method of claim 6,
The stopper part 15-4,
Power generation system using a rotating offshore structure, characterized in that the bar shape connecting the upper support (15-1) and the lower support (15-2).
The foundation pillar (11) is installed by installing a lower integrated foundation base (12) and a column pipe (11a) that is supported by the submarine layer (F) by a rock bolt type anchor (13) that penetrates the interior and is embedded in the submarine layer (F). ) And a basic construction step (S1) to install;
Including the foundation pillar 11 installed in the foundation construction step (S1) and supported therein, including the support pillar 14 inside, the power is generated while rotating by the force of water flowing. Including a rotary offshore structure construction step (S2) for installing a rotary offshore structure 10 having a rotating pillar 15 to produce;
The basic construction step (S1),
A location search and topography identification process (S11) for checking the location and topography of the seafloor F on which the foundation base 12 is to be placed;
The process of adjusting the shape of the foundation base 12 according to the topography of the bottom of the seabed (F) at the location to be installed, and adjusting the length of the column pipe 11a to have a set height ( S12) and;
A column pipe installation process (S13) in which the column pipe (11a) is positioned at a set position of the submarine layer (F) using a barge and is lowered to be installed;
After drilling the submarine layer (F) into the pillar pipe (11a) by using an excavation device, while penetrating the pillar pipe (11a), install a rock bolt anchor (13) so as to be embedded in the perforated submarine layer (F) A method of constructing a rotary offshore structure for installing the rotary offshore structure according to any one of claims 1 to 7 comprising: a rock bolt anchor installation process (S14).
The method of claim 8,
The rotating offshore structure construction step (S2),
The assembly process (S21) of a rotating offshore structure combining the rotating column (15) so as to be rotatable around the support column (14),
To move the rotary offshore structure to the position of the foundation pillar 11 using a barge, and install it to be coupled to the upper part of the foundation base 12 while lowering the support pillar 14 so that the foundation pillar 11 is inserted. A method of constructing a rotary offshore structure, characterized in that it comprises a process of installing a rotary offshore structure (S22).
The method of claim 9,
The rotating offshore structure construction step (S2),
Rotating type, characterized in that it further comprises an upper structure installation process (S23) for installing an upper structure 20 supporting the power generation equipment 30 above the rotary type offshore structure 10 installed at intervals according to the setting Offshore structure construction method.

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