WO2019045550A1

WO2019045550A1 - Offshore structure for tidal power generation, method for constructing same, and tidal power generation system using same

Info

Publication number: WO2019045550A1
Application number: PCT/KR2018/010297
Authority: WO
Inventors: 김유신; 김정호; 김유준; 송석규; 김영환
Original assignee: 김유신
Priority date: 2017-09-04
Filing date: 2018-09-04
Publication date: 2019-03-07

Abstract

The present invention relates to an offshore structure for tidal power generation, a method for constructing same, and a tidal power generation system using same and, more specifically, to an offshore structure for tidal power generation, a method for constructing same, and a tidal power generation system using same, wherein: a lock bolt anchor is used to form columns on an underwater rock layer in a region in which water flow is fast due to the tidal current, thereby facilitating the construction of the offshore structure; and a power generator unit having a height that varies according to the sea level is used to enable an increase in power generation efficiency. To this end, the tidal power generation system is configured to be supported by the offshore structure and include the power generator unit, and the offshore structure for the tidal power generation is constructed by performing at least a foundation construction step and an offshore structure construction step.

Description

Offshore structure for tidal power generation, method of construction thereof, and tidal power generation system using the same

The present invention relates to an offshore structure for algae power generation, a construction method thereof, and a tidal power generation system using the same. More particularly, the present invention relates to an algae power generation system using a rock bolt anchor on an undersea rock layer having a high- And a power generation unit which is height-changed according to the height of the water surface, thereby improving power generation efficiency. The present invention also relates to a method for constructing an offshore structure for algae power generation and a tidal power generation system using the same.

Generally, tidal power generation is a power generation system that converts the potential energy from the tidal level to the electric energy from the kinetic energy.

In Korea, there are many areas where there is a lot of difference between tides.

Such an algae generator can be implemented in various forms, and in particular, the installation of an offshore structure such as a caisson for positioning the algae generator on the sea floor is difficult due to the influence of the algae having a high flow velocity and the unevenness of the installation area, And it is difficult to maintain the installed offshore structures and tidal generators.

For example, maintenance of an algae generator installed in an offshore structure such as a caisson can be accomplished by moving the algae generator on the ground using a marine crane or the like, positioning it on the undersurface again when the process is completed, (ROV), and the like, and the maintenance period is prolonged.

Conventionally, there are a method of placing a weight made on the ground on a seabed surface using a barge or the like, and a structure in which an algae generator having a buoyancy body is connected to these marine structures by wires or the like.

However, such a conventional offshore structure has a problem that it is difficult to perform precise construction and stable installation and support due to the algae at a high flow velocity.

In order to solve such a problem, one conventional technique will be described. First, a chopping process and a chopping process are performed in order to increase the strength of the rough base. Korean Patent Application No. 10-1999-0043658, Korean Patent Application No. 10-2003-0062926, and Korean Patent Application No. 10-2008-0033494 are disclosed as a related invention.

These prior arts are for the work such as picking the foundation of the sea floor slab and strengthening the support base, but there is a problem that it is difficult to precise construction due to settlement problem of sandstone and high velocity and wave, and construction period and construction cost increase.

Therefore, in the development of algae, which is considered as one of the important alternative energy of the future, the formation of the foundation where the maintenance and the power generation equipment of the offshore structure and the power generation equipment are installed in the case of algae development is very important, There is a need for an alternative.

Also, conventionally, the area of the marine rock layer to be installed by installing the marine structure with heavy weight was large, and since the marine structure was not stably supported, it was very difficult to carry out the algae power generation. The construction method of the offshore structure for the tidal power generation, and the tidal power generation system using the offshore structure.

SUMMARY OF THE INVENTION The present invention has been made to solve the problems of the prior art described above and it is an object of the present invention to provide an ophthalmic generator for facilitating the construction of an offshore structure in response to a tide of a fast flow rate, And an object of the present invention is to provide an offshore structure, a construction method thereof, and a tidal power generation system using the same.

In order to achieve the above object, an offshore structure for algae power generation according to the present invention, a construction method thereof, and a tidal power generation system using the same, is characterized in that an offshore structure that forms a passage area through which algae pass between a main structure on the left side and a main structure on the right side and; And a power generator unit installed in the channel area with the support of the offshore structure and having a turbine for rotating the hinge by buoyancy to adjust the position of the turbine to generate electric power.

In this case, the offshore structure includes: a column pipe supported by a foundation base having an integral width at the lower end and contacting and contacting the submarine rock layer; and a column pipe having a length protruding upward from the water surface, And a plurality of posts having bolt-type anchors.

On the other hand, the foundation base forms a base hole communicating integrally with the lower end of the column pipe and having an inclined surface from above to below.

The rock bolt-type anchor is fixed to the base base by a fastening nut tightened on an inclined surface along the lower thread portion of the anchor shaft rod, having an anchor head constituting the front end and an anchor axial rod extending from the anchor head, And an expanding wing which is extended from the anchor head and spreads to the submarine bedrock.

The column portion, on the other hand, further includes an extension pipe extending to the upper portion of the column pipe so as to adjust the height thereof to the adjacent column portion equally.

On the other hand, the offshore structure includes a first support beam connecting the left main structure and one of the pillars constituting the main structure on the right side and supporting the power generator unit, and a first support beam spaced upward from the first support beam, And a support beam constituting a second support beam for supporting an upper structure that covers the left main structure and the right main structure.

If necessary, the offshore structure further includes a flow path plate for covering the side of the column portion constituting the main structure on the left side and the main structure on the right side to guide the flow of the current into the flow path region and prevent foreign matter from flowing.

The power generating unit includes a support frame coupled to the left main structure and the right main structure of the offshore structure so as to be hinged by the hinge shaft and having a downward length and a hinge shaft And a turbine having a buoyancy tube filled with air therein.

Meanwhile, the method of constructing an offshore structure for algae power generation according to the present invention comprises a basic construction step and an offshore structure construction step.

In the foundation construction step, the rock bolt type anchors penetrating the foundation base of the lower integral type and the inside and rock bolt type anchors penetrating the inside are supported, and the column pipe partially protruded to the upper part of the water level is installed at the set intervals and positions, It is a step to establish wealth.

In the step of constructing an offshore structure, a plurality of pillars provided at predetermined intervals are connected to constitute a main structure on the left side and a main structure on the right side, and a marine structure having a passage area through which algae pass It is a step for facilities.

Specifically, the base construction step includes a location search and a topography identification process for identifying a bottom landform including a position and a height of a submarine rock layer to be laid on the foundation base; A base base shape and a column pipe length adjusting process for adjusting the shape of the base base according to the bottom of the sea bed floor at the location to be installed and adjusting the length of the column pipe so as to have a predetermined height and protrude to the water surface; A column pipe installation process in which a column pipe is positioned and lowered by using a barge to a predetermined position of a submarine rock layer; And a rock bolt anchor installation process in which a rock bolt anchor is installed in the interior of a perforated submarine rock layer penetrating through a column pipe after drilling the submarine rock layer using a drilling rig into the column pipe.

In particular, the step of constructing an offshore structure includes a step of adjusting and extending a column to adjust the height of the column portion adjacent to the column portion to an upper portion of the column pipe so as to have an equal height; A support beam connection and a main structure installation process that form a space for the power generator unit to be installed and coupled using the support beams connecting the plurality of columns and constitute the main structure on the left side and the main structure on the left side so as to have the flow path area.

If necessary, the step of constructing the offshore structure further includes a step of installing an upper structure constituting an upper structure covering the left main structure and the upper right main structure.

As described above, an offshore structure for algae power generation according to the present invention, a construction method thereof, and an algae power generation system using the same, are capable of easily constructing an offshore structure by forming a column by using a rock bolt anchor on an undersea rock layer of a high- .

Further, the power generation device coupled to the offshore structure has a hinge rotation according to the height of the water surface, and the height of the power generation device is increased, thereby improving the power generation efficiency.

1 is a view showing a tidal power generation system using an offshore structure for tidal power generation according to the present invention.

FIG. 2 and FIG. 3 are views showing a pillar of a tidal power generation system using an offshore structure for tidal power generation according to the present invention.

4 is a view showing a power generating unit of a tidal power generation system using an offshore structure for tidal power generation according to the present invention.

5 (a) and 5 (b) are views showing the operation of the power generator unit according to FIG.

6 is a flowchart illustrating a method of constructing an offshore structure for algae generation according to the present invention.

The present invention relates to a marine structure (10) having a channel section (2) through which algae pass between a left main structure (10a) and a right main structure (10b); A turbine 22 provided in the flow passage section 2 with the support of the offshore structure 10 and having a turbine 22 for rotating the hinge by the buoyancy to adjust the position of the turbine 22, 20);

The marine structure 10 includes a column pipe 11a supported by a base base 12 integrally wider at its lower end in contact with the sea bed layer F and having an upper portion projecting upward from the water surface, And a plurality of pillar portions (11) having rock bolt type anchors (13) penetrating through the column pipe (11a) and embedded in the sea bed layer (F) Power generation system.

The present invention is also characterized in that the rock bottom bolt type anchor 13 penetrating through the base bottom 12 of the lower integral type and the inside of the sea floor layer F through the inside thereof receives the support of the sea floor layer F, (S1) of installing a plurality of column portions (11) by providing column pipes (11a) partially protruded upward at predetermined intervals and positions; The main structure 10a and the main structure 10b on the left side are connected by connecting a plurality of pillars 11 provided at intervals set at a predetermined position by the basic construction step S1, An offshore structure construction step (S2) for installing an offshore structure (10) having a zone (2);

The basic construction step (S1)

A location searching and landform grasping process (S11) for confirming a bottom landform including a position and a height of the submarine rock layer (F) to which the foundation base (12) is to be placed; The shape of the foundation base 12 is adjusted according to the bottom of the sea floor layer F at the position to be installed and the shape of the base base and the shape of the column base 11 are adjusted so as to adjust the length of the column pipe 11a, A pipe length adjustment process (S12); A column pipe installation step (S13) of placing the column pipe (11a) at a predetermined position of the sea bed layer (F) by using a barge and lowering it; The rock bolt anchor 13 is installed even though the rock bolt F is pierced into the column pipe 11a using the excavator and then penetrated into the drilled rock layer F penetrating through the column pipe 11a And a rock bolt anchor installation step (S14) of installing a rock bolt anchor for installation of an offshore structure.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of an offshore structure for alga power generation according to the present invention, a construction method thereof, and a tidal power generation system using the same will be described in detail with reference to the accompanying drawings.

In describing the present invention, it is assumed that the upper portion or the upper portion indicates a portion having a height on the bottom surface or a direction thereof, and the lower portion or the lower portion indicates a portion or a direction opposite thereto.

In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted so as to avoid obscuring the subject matter of the present invention.

As shown in the drawings, an offshore structure for algae power generation according to the present invention, a construction method thereof, and a tidal power generation system using the same, comprises a rock bolt anchor (13) on a submarine rock layer (F) The structure of the offshore structure 10 using the pipe 11a is formed by supporting the pipe 11a so that the power generating device part 20 supported by the offshore structure 10 can be easily lifted by the buoyancy It is made possible to increase the power generation capacity using algae by actively coping with the change.

In other words, the offshore structure for algae power generation 10 has the left and right main structure 10a and the right main structure 10b by using a plurality of pillar portions 11 having positions and intervals set in the sea bed layer F, Respectively. And the flow passage section 2 through which the alga passes is formed between the right side

main structures

10a and 10b.

In this manner, the column 11 is formed by using the column pipe 11a, which is not a weight having a weight, and the offshore structure 10 is installed using the column pipe 11a, thereby making it possible to stably install the structure 10 by avoiding algae at a high flow rate.

In addition, the installation of the column pipe 11a can be stably installed by using the SEP barge to lower the water pipe from outside to outside under the influence of algae.

Meanwhile, the generator unit 20 installed with the support of the offshore structure 10 is hinged by the buoyancy to adjust its position according to the change of the height of the water surface, so that the power generation is facilitated and the power generation efficiency is increased.

The marine structure 10 applied to the present invention is a marine structure 10 supported by a foundation base 12 integrally wider at its lower end in contact with the marine rock layer F and having an upper portion protruding upward from the water surface, And a plurality of column portions 11 having a rock bolt type anchor 13 inserted into the underside rock layer F while penetrating the column pipe 11a.

Hereinafter, the present invention will be described in detail with reference to FIGS. 1 to 5 (a) and 5 (b), which illustrate an offshore structure for alga power generation, a construction method thereof and a tidal power generation system 1 using the same.

As shown, the tidal power generation system 1 according to the present invention includes an offshore structure 10 for tidal current generation and a power generation unit 20 for power generation.

First, the offshore structure 10 for aviation power generation forms a flow passage section 2 through which alga is passed between the left main structure 10a and the right main structure 10b.

To this end, the offshore structure 10 is supported on the lower end in contact with the underside rock layer F by the base base 12 having an integral width, and the upper end of the column pipe 11a having a length protruding upward from the water surface Thereby constituting the columnar portion 11.

The column pipe 11a is provided at a position where the submarine rock layer F is to be installed to constitute the column portion 11. The rock bolt type anchor (not shown) which penetrates the column pipe 11a and is caught in the submarine rock layer F 13).

The above-mentioned column pipe 11a has a predetermined length according to a search for a point to be installed and is installed on the sea bed rock layer F by using the SEP barge line, which will be described later in detail.

2 and 3, the column pipe 11a is a tubular pipe having a predetermined length, and if necessary, has a circular or polygonal pipe shape.

The foundation base 12 is integrally formed in the lower part of the column pipe 11a and the column base 11 is brought into contact with the seabed base layer F while the foundation base 12 is tilted And it is prevented from being detached or damaged.

On the other hand, the foundation base 12 has a base hole 12a which communicates integrally with the lower end of the column pipe 11a and has an inclined surface 12a-1 from the upper side to the lower side inward.

Through the base hole 12a, the submarine rock layer F is pierced and the column pipe 11a is supported on the submarine rock layer F by using the rock bolt type anchor 13.

The above-mentioned rock bolt anchor 13 is a technology in which the applicant of the present invention has already started and registered and has a right. For a description of the specific technique, refer to Korean Patent Registration No. 10-1133431, Korean Patent Registration No. 10- 1156501, and Korean Patent Registration No. 10-1376534, the detailed description of the constitution will be omitted in order to avoid obscuring the gist of the present invention.

2, a rock bolt-type anchor 13 penetrating the upper portion of the foundation pipe 11a through the base hole 12a of the foundation base 12 and penetrating into the submarine rock layer F, An anchor head 13a constituting the front end and an anchor shaft rod 13c extending from the anchor head 13a and the anchor head 13a includes an extension vane 13b for digging the rock layer by manipulation.

The tightening nut 15 is coupled to the lower thread portion 13c-1 formed at the lower portion of the anchor shaft rod 13c. The tightening nut 15 is engaged with the lower thread portion 13c-1, And the expanding blade 13b expands and spreads according to the structure of the anchor 13.

In addition, the tightening nut 15 presses the inclined surface 12a-1 formed in the base hole 12a of the base base 12 downward from above and presses the rock bolt type anchor 13 against the column pipe 11a, And the base base 12 so that the column pipe 11a and the foundation base 12 are supported on the sea bed layer.

In other words, the column pipe 11a is seated and the rock bolt type anchor 13 is installed so that the foundation base 12 is positioned on the upper surface of the sea bed layer F at the set position point. 1 of the foundation base 12 and the rock bolt type anchor 13 is fixedly inserted and fixed in the pierced underwater rock layer as the expansion vane 13b is opened.

The column pipe 11a thus installed is provided with a predetermined position and a predetermined interval to constitute the column portion 11 of the offshore structure 10. The column portion 11 is formed in a column portion 11a adjacent to the upper portion of the column pipe 11a, (11b) so as to adjust the height of the pipe (11).

Accordingly, the columnar section 11 can have the same height as the columnar section 11 adjacent thereto.

The column 11 constituting the offshore structure 10 has a column pipe 11a supported by the sea bed layer F and an extension pipe 11b extending to the upper portion of the column pipe 11a I have.

2, the extension pipe 11b is integrally connected to the upper portion of the column pipe 11a by forming a connection portion 11b-1 through welding or the like, The connecting portion 11b-1 can be formed and extended.

The length of each of the extension pipes 11b may vary depending on the length of the respective column pipes 11a, and it is of course possible to cut the height of the extension pipe 11b to meet the height.

1 and 3, a rock bolt-type anchor 13 penetrating the column pipe 11a is fixed to a fixing nut (not shown) which tightens the upper screw portion 13c-2 formed on the upper portion of the anchor shaft rod 13c 16 and the fixing bracket 17 so as to be firmly and integrally fixed to the column pipe 11a.

Accordingly, the column portion 11 of the offshore structure 10 can be formed only by the structure in which the rock bolt type anchor 13 is provided without the need to place concrete or the like on the column pipe 11a, And it has the effect of significantly lowering the construction cost.

As described above, the offshore structure 10 according to the present invention is constructed such that the left main structure 10a and the right main structure 10b are erected by using the plurality of pillars 11, (2).

At this time, the offshore structure 10 has a support beam 14 including a first support beam and a second support beam for connecting and supporting the structure.

Specifically, the offshore structure 10 includes a first support beam 10a connecting one side of the columnar section 11 constituting the left main structural body 10a and the right main structural body 10b, (14a).

The upper support structure 10c is installed to connect the column portions 11 with a space above the first support beams 14a and supports the upper structure 10c covering the left main structure 10a and the right main structure 10b And a second support beam 14b.

Although the marine structure 10 according to the present invention is not shown, the marine structure 10 covers the side of the pillars 11 constituting the left main structure 10a and the right main structure 10b, And a flow path plate for guiding the flow and preventing foreign matter from entering.

At this time, the flow path plate may have a plate-like shape or a mesh-like shape.

When the column portion 11 constituting the offshore structure 10 having the flow path plate is installed according to the set position, the column portion 11 of the left main structure forming the flow path region 2 and the column portion 11 of the right main structure column So that the flow velocity can be increased while inducing the flow of the algae.

Referring to FIG. 4, the power generator 20 includes a support frame 21 having a hinge shaft 21a and a support frame 21 having a hinge shaft 21a. And a turbine 22 having a buoyancy tube 22a.

Specifically, the support frame 21 is coupled to the left main structure 10a and the right main structure 10b of the offshore structure 10 by a hinge shaft 21a so as to be hinged, It has a downward length to use this bird.

The turbine 22 is rotatably supported by hinge shafts 21b at both lower sides of the support frame 21 and includes a buoyancy tube 22a filled with air.

Preferably, the buoyancy tube 22a may be integrally formed with the turbine 22 as shown, and may optionally detachably connect the buoyancy tube 22a to the outside of the turbine 22 Of course.

5 (a) and 5 (b), the generator unit 20 floats on the water surface due to buoyancy of the

buoyancy tank

22a, 22 can produce power by rotating the wings.

At this time, as the height of the water surface changes from A -> B -> C due to the difference in the tide distance, the power generator unit 20 correspondingly moves the turbine 22 against the flow of the algae, Its position is adjusted while turning the hinge.

5A, the flow of the algae flows from the left to the right, and the turbine 22 is pushed from the left to the right according to the change of the water surface height from A to B to C to center the hinge axis 21a The hinge is rotated to adjust the position.

5B, the flow of the algae flows from right to left, and the turbine 22 is pushed from the right side to the left side according to the change of the water surface height from A to B to C, The hinge is rotated to adjust the position.

According to the structure of the power generator unit 20, the tidal power generation system 1 using the offshore structure for tidal power generation according to the present invention has an effect of improving the power generation efficiency by constantly generating power according to the tidal difference.

Referring to FIG. 1 again, the power generator unit 20 according to the present invention may be configured to be mounted on the first support beam 14a, or to have a separate coupling portion 14a for supporting the hinge shaft 21a (FIG. 4) And the first support beam 14a including the first support beam 30 is provided.

Accordingly, it is very easy to install the power generator unit 20 on the offshore structure 10, and the power generator unit 20 can be easily maintained and repaired.

6, a method of constructing an offshore structure for algae power generation according to the present invention will be described in detail.

The offshore structure 10 for an algae power generation system for constructing the alga power generation system 1 according to the present invention is constructed such that the submarine base layer F is formed through the basic construction step S1 and the offshore structure construction step S2, .

At this time, the foundation construction step S1 is carried out by receiving the support of the submarine rock layer F by the rocking bolt-type anchor 13 penetrating the bottom base type base 12 of the lower integral type and penetrating the inside of the sea floor layer F, And a step of installing a plurality of columnar portions 11 by installing some protruding columnar pipes 11a at predetermined intervals and positions.

In the marine structure construction step S2, a plurality of pillars 11 provided at predetermined intervals are connected to each other at a predetermined interval set by the basic construction step S1 to connect the left main structure 10a and the right main structure 10b ), And is a step for installing an offshore structure (10) having a passage section (2) through which alga is passed.

First, the basic construction step (S1) will be described in more detail as follows.

As shown in the figure, the basic construction step S1 includes a position search and topographical identification process S11, a base base shape and column pipe length adjustment process S12, a column pipe installation process S13, And an installation process S14.

The position search and topographical grasp process S11 is a process for confirming a bottom terrain including a position and a height at which the foundation base 12 will be placed on the underwater sea bed F.

In order to construct an offshore structure for algae power generation according to the present invention, a marine work crane barge line, specifically, an SEP barge line is used.

In this barge line, the position and shape of the submarine rock layer 10 to be installed with the marine structure 10 are grasped by using a search device.

The base base shape and the column pipe length adjusting process S12 are performed by adjusting the shape of the base base 12 in accordance with the bottom topography of the submarine rock layer F to be installed, Thereby enabling stable support.

In other words, the foundation base 12 is bent or formed to conform to the topography shape of the submarine rock layer F to be located.

The length of the column pipe 11a having the base base 12 integrally formed is adjusted to have a predetermined height and protrude upward from the water surface.

This base base shape and column pipe length adjustment process (S12) is performed on the sea barge.

Subsequently, the column pipe installation process S13 is a process of installing the column pipe 11a at a predetermined position of the submarine rock layer F by using a barge and lowering it.

SEP (Self Elevating Platform) barge, which is a kind of water barge, is used as a barge that can be fixed to a solid ground in the water by attaching a fixing device (Leg) to the barge. The interval is lifted and fixed, and then the operation is performed.

Accordingly, the column pipe 11a is positioned using a device such as a crane provided on the barge so as to be at a height set above the barge line free from the influence of water.

Subsequently, a rock bolt anchor installation process (S14) is performed. This is performed by drilling the submarine rock layer F into the column pipe 11a using a drilling apparatus, and then drilling the submarine rock layer F through the column pipe 11a, A rock bolt anchor 13 is installed even if the lock bolt anchor 13 is embedded in the inside of the lock bolt anchor 13.

As described above, the rock bolt anchor 13 is a technique in which the applicant of the present invention has already been initiated and registered and has a right, so that a detailed description of the construction will be omitted so as not to obscure the gist of the present invention.

As described above, the column pipe 11a is seated and the rock bolt type anchor 13 is installed so that the foundation base 12 is positioned on the upper surface of the sea bed layer F at the set position, 1 of the foundation base 12 while the rock bolt type anchor 13 is inserted and fixed in the seabed rock layer F which is drilled with the expansion wings 13b spreading.

Next, referring to FIG. 6, the construction step S2 of the offshore structure will be described as follows.

The offshore structure construction step S2 includes a column part adjustment and extension installation step S21, a support beam connection and a main structure installation step S22.

The height of the column portion 11 adjacent to the column portion 11 using the column pipe 11a is increased to the upper portion of the column pipe 11a by the extension pipe 11b, And a height of the same line.

Since the installation process is performed on the surface of the water, the installation is stable without being influenced by algae.

The support beam connection and the main structure installation process S22 form a space in which the power generator unit 20 is to be installed and coupled using the support beams 14 connecting the plurality of column portions 11, The left main structural body 10a and the right main structural body 10b are formed.

At this time, the support beam 14 is connected to one side of the columnar part 11 constituting the left main structural body 10a and the right main structural body 10b, and a first support beam And an upper structure 10c which is spaced upward from the first support beam 14a and is connected to the column 11 so as to cover the left main structure 10a and the right main structure 10b, And a second support beam 14b supporting the second support beam 14b.

On the other hand, as described above, if necessary, the flow of the algae into the flow passage section 2 is guided by covering the sides of the pillars 11 constituting the left main structure 10a and the right main structure 10b, And a flow path plate for preventing the flow path.

The step of installing the offshore structure S2 further includes a step S23 of installing an upper structure. The step of installing the upper structure includes an upper structure 10a covering the left main structure 10a and an upper structure covering the upper right structure 10b 10c.

The upper structure 10c is installed such that the column portion 11 of the offshore structure 10 protrudes at a predetermined height from the upper part of the water surface so that a leg or a flower bed having a length can be constructed if necessary. It is of course possible to install a separate building depending on the size of the building.

In accordance with the method for constructing an offshore structure for algae generation, the algae power generation system 1 is installed by constructing the power generator unit 20 under the support of the offshore structure 10 installed on the sea floor F.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention. It is not.

Claims

An offshore structure 10 having a flow passage section 2 through which algae pass between a left main structure 10a and a right main structure 10b;

A turbine 22 provided in the flow passage section 2 with the support of the offshore structure 10 and having a turbine 22 for rotating the hinge by the buoyancy to adjust the position of the turbine 22, 20);

The offshore structure (10)

A column pipe 11a supported by the foundation base 12 having an integral width at the lower end in contact with the sea bed layer F and protruding upward from the water surface, And a plurality of pillars (11) having a rock bolt type anchor (13) embedded in the sea bed layer (F).
The method according to claim 1,

The foundation base (12)

A base hole 12a which communicates integrally with the lower end of the column pipe 11a and has an inclined surface 12a-1 from the upper side to the lower side and penetrates therethrough is formed,

The rock bolt type anchor (13)

The anchor head 13a constituting the leading end and the anchor shaft rod 13c extending from the anchor head 13a and the inclined surfaces 12a-12c along the lower thread portion 13c-1 of the anchor shaft rod 13c, 1 is fixed to the foundation base 12 by means of a tightening nut 15 and is extended in the anchor head 13a in accordance with the tightening of the tightening nut 15 to be caught in the sea bed layer F And an expanding blade (13b). &Lt; RTI ID = 0.0 > [10] < / RTI >
The method according to claim 1,

The columnar section (11)

Further comprising an extension pipe (11b) connected to the upper portion of the column pipe (11a) so as to adjust the height of the column pipe (11) adjacent to the upper portion of the column pipe (11a).
The method according to claim 1,

The offshore structure (10)

A first support beam 14a connecting one side of the column 11 constituting the left main structure 10a and the right main structure 10b and supporting the power generator unit 20, A second supporting beam (not shown) for supporting the upper structure 10c covering the left main structure 10a and the right main structure 10b and spaced upward from the beam 14a and connected to the column 11, And a support beam (14) constituting the tidal plate (14a, 14b).
5. The method of claim 4,

The offshore structure (10)

And a flow path plate for covering the side of the column portion 11 constituting the left side main structure 10a and the right side main structure 10b to guide the flow of the algae into the flow path region 2 and prevent foreign matter from flowing into the flow path region 2 Wherein the at least one of the at least two of the at least two of the at least two of the at least two of the plurality of the at least one of the plurality of the at least one of the at least two of the plurality of
The method according to claim 1,

The power generator unit (20)

A support frame 21 coupled to the left main structure 10a and the right main structure 10b of the offshore structure 10 so as to be hinged by a hinge shaft 21a and having a downward length,

And a turbine (22) provided at both lower sides of the support frame (21) to rotate by a hinge shaft (21b) and having a buoyancy tube (22a) filled with air. A tidal power generation system using structures.
A column pipe 11a partially supported on the underside rock layer F and supported by the rock bottom layer type anchor 13 penetrating through the inside of the lower integral type base block 12 and penetrating through the inside of the rock bottom layer type F, (S1) for installing a plurality of pillars (11) at predetermined intervals and positions;

The main structure 10a and the main structure 10b on the left side are connected by connecting a plurality of pillars 11 provided at intervals set at a predetermined position by the basic construction step S1, An offshore structure construction step (S2) for installing an offshore structure (10) having a zone (2);

The basic construction step (S1)

A location searching and landform grasping process (S11) for confirming a bottom landform including a position and a height of the submarine rock layer (F) to which the foundation base (12) is to be placed;

The shape of the foundation base 12 is adjusted according to the bottom of the sea floor layer F at the position to be installed and the shape of the base base and the shape of the column base 11 are adjusted so as to adjust the length of the column pipe 11a, A pipe length adjustment process (S12);

A column pipe installation step (S13) of placing the column pipe (11a) at a predetermined position of the sea bed layer (F) by using a barge and lowering it;

The rock bolt anchor 13 is installed even though the rock bolt F is pierced into the column pipe 11a using the excavator and then penetrated into the drilled rock layer F penetrating through the column pipe 11a And a rock bolt anchor installation step (S14) of installing the rock bolt anchor. The method for constructing an offshore structure for algae power generation according to any one of claims 1 to 6,
8. The method of claim 7,

In the marine structure construction step S2,

A column portion adjusting and extending process for adjusting the height of the column portion 11 adjacent to the column portion 11 to an upper portion of the column pipe 11a by connecting the extension pipe 11b so as to have the same height S21);

A space is formed in which the power generator unit 20 is to be installed by using the support beams 14 connecting the plurality of columns 11 and the left main structure 10a and the right side A supporting beam connection and a main structure installation process S22 constituting the main structure 10b of the main body 10b; Wherein the method for constructing an offshore structure for algae power generation comprises the steps of:
9. The method of claim 8,

In the marine structure construction step S2,

Further comprising an upper structure installing step (S23) of constructing an upper structure (10c) covering the upper left main structure (10a) and the right upper main structure (10b) .