KR101509666B1 - constructing apparatus for offshore wind power turbine and construction method thereof - Google Patents

Abstract

The present invention relates to a construction apparatus for an offshore wind power generation tower, and a construction method therefor. More specifically, the construction apparatus for an offshore wind power generation tower, where an upper end of the lower column and a lower end of the upper column are adjacent to each other among the columns are coupled, has a plurality of columns to form a tower. The construction apparatus includes: a cylinder standing and positioned inside the lower column having an extendable length; a lower column coupling means coupling and dismantling the lower portion of the cylinder and the lower column; an upper column coupling means coupling and dismantling the upper portion of the cylinder and the upper column; and a column coupling means coupling and dismantling the upper column and the lower column. The present invention poses difficulties of construction work and reduces the construction costs and time as lifting facilities installed in a large crane is not used.

Description

[0001] The present invention relates to a wind turbine tower construction apparatus for offshore wind turbines,

The present invention relates to an apparatus for constructing an offshore wind turbine tower and a method of constructing the same, and more particularly, to a wind turbine tower construction apparatus for an offshore wind turbine tower, A lower column coupling means for coupling and releasing the lower portion of the cylinder to and from the lower column, and a lower column coupling means for coupling and releasing the upper column and the upper column, And a column connecting means for connecting and disconnecting the upper column and the lower column. Thus, it is possible to solve the difficulty of the construction work without using the heavy equipment mounted on the large crane, And to a method of constructing the same.

Wind power is a promising alternative energy source that can replace fossil fuels. It is a clean energy source that does not cause environmental pollution. It is now known to be the most economical alternative energy source.

Thus, large-scale wind farms are being built on land and on the sea to produce alternative energy.

Since such a wind turbine is constructed with a wind turbine using a crane, there is a difficulty and a danger to work with a crane for a high-altitude work because the center of gravity is high and the construction site is high.

In addition, the efficiency of the wind turbine increases as the wind speed is strong and the change in the wind direction is small. The average wind velocity of the sea wind is higher than the wind velocity of the ground wind, and the wind velocity of the sea wind is also richer than that of the ground wind. Especially, the offshore wind far from the inland is more advantageous for wind power generation because the characteristics of turbulence are smaller.

In addition, when the wind turbine generator is installed on the ground, the place where the wind turbine generator can be installed is limited due to the limitation of noise and aesthetics. However, it is also advantageous in that the wind turbine generator is installed almost at sea.

Therefore, large-scale offshore wind farms are currently being built, and research and development is actively underway.

The offshore wind turbine installed in the sea is generally constructed on land, mounted on a barge and operated on a watershed, and a wind turbine is hung on a large crane mounted on a crane line separately from the barge, so as to stand on the base structure.

1 is a view showing a conventional offshore wind turbine installation system in which a lifting jig 20 installed on the tower 10 of the offshore wind power generator at a position above the center of gravity G of the offshore wind turbine generator, And a crane 30 capable of lifting the lifting jig 20 from both sides of the tower 10.

Therefore, in the conventional offshore wind turbine generator, since the wind turbine generator is constructed by using the crane installed on the crane line, the installation can be delayed or limited due to the weather conditions in the sea, The construction of a marine wind power tower is not easy, and the construction period also takes a long time.

Korean Patent No. 10-1337646, Offshore wind turbine generator, lifting jig for offshore wind turbine generator, and method and system for installing offshore wind turbine generator using the same

SUMMARY OF THE INVENTION The present invention has been made in order to solve such problems, and it is an object of the present invention to provide a construction apparatus for a wind turbine tower for marine use in which a wind turbine tower can be constructed without using a lifting tower equipped with a large crane, will be.

Another object of the present invention is to provide a wind turbine tower construction apparatus and a construction method therefor, which can reduce the restrictions on construction of a marine wind power tower caused by weather conditions and surrounding foundation structures, Method.

The objects of the present invention are not limited to the above-mentioned objects, and other objects not mentioned can be clearly understood by those skilled in the art from the following description.

In order to accomplish the object of the present invention, first, the present invention provides a wind power generator for a marine wind turbine, in which a plurality of columns are installed in multiple stages to form a tower, wherein an upper end of an adjacent lower column and a lower end of an upper column are assembled In a tower construction apparatus,

A cylinder located upright on the inner side of the lower column and having a length expanded and contracted;

A lower column coupling means for coupling and releasing the lower portion of the cylinder and the lower column;

An upper column coupling means for coupling and releasing the upper column and the upper column of the cylinder; And

And a column connecting means for connecting and disconnecting the upper column and the lower column,

The cylinder coupling means is released, the cylinder is extended in a state where the upper column coupling means and the lower column coupling means are coupled to lift up the upper column,

The upper column coupling means and the column coupling means are engaged, the cylinder is contracted in a state where the lower column coupling means is released,

And the cylinder is repeatedly elongated and contracted to elevate the upper column above the lower column.

In a preferred embodiment, the lower column coupling means includes a plurality of lower column fastening holes formed in the lower column and a pin fastened to the lower column fastening hole.

In a preferred embodiment, the lower column coupling means further comprises a frame connecting the lower portion of the cylinder with the pin.

 In a preferred embodiment, the column connecting means includes a lower column fastening hole, a plurality of upper column fastening holes formed in the upper column so as to correspond to the lower column fastening holes, and a plurality of upper column fastening holes formed in the upper column fastening holes, Lt; / RTI >

 In a preferred embodiment, the vertical spacing of the lower column fastening holes is constant with the length of the cylinder.

 In a preferred embodiment, the cylinders are plural.

 In a preferred embodiment, the cylinders are arranged along the inner edge of the lower column, and are symmetrical about the lower column.

 The present invention also relates to a method of constructing a marine wind turbine tower construction apparatus, comprising the steps of raising the upper column and assembling the lower end of the raised upper column and the upper end of the lower column, The upper column elevating step is a step in which the column connecting means is released and the cylinder is elongated while the lower column connecting means and the upper column connecting means are engaged, A lifting cylinder extension step; A column connecting step in which the upper column and the lower column are coupled to each other by a column connecting means so that the raised upper column is not dropped; A lower column unfastening step in which the lower column fastening means is released; A cylinder retracting step in which the cylinder is retracted in a state that the upper column engaging means and the column engaging means are engaged and the lower column engaging means is disengaged; A lower column coupling step of coupling the lower portion of the cylinder and the lower column which are contracted by the lower column coupling means; And the pillar releasing step in which the pillar fastening means is released, wherein the cylinder extending step, the pillar attaching step, the lower pillar releasing step, the cylinder retracting step, the lower pillar attaching step, The present invention also provides a method for constructing a marine wind power tower.

In a preferred embodiment, the cylinders are plural.

In a preferred embodiment, the cylinder is stretched by hydraulic pressure.

The present invention has the following excellent effects.

First, according to the construction apparatus for a marine wind power tower according to the present invention, it is possible to construct a marine wind power tower without using a lifting mechanism equipped with a large crane.

Further, according to the construction apparatus for a marine wind tower and its construction method according to the present invention, it is possible to reduce restrictions on the construction of a marine wind tower caused by weather conditions and peripheral substructures, .

1 is a view showing a conventional offshore wind turbine installation system.
2 is a view showing a marine wind power generation tower according to an embodiment of the present invention.
3 is a cross-sectional view showing a construction apparatus for a marine wind power tower according to another embodiment of the present invention.
4 is a cross-sectional view illustrating a construction apparatus for a marine wind power tower according to another embodiment of the present invention.
5 is a cross-sectional view illustrating a construction apparatus for a marine wind power tower according to another embodiment of the present invention.
6 is a cutaway perspective view showing a construction apparatus for a marine wind power tower according to another embodiment of the present invention.
FIG. 7 is a step diagram of a method for constructing a marine wind power tower according to the present invention.
8A is a view showing a preparation state of the method for constructing a marine wind power tower according to the present invention before a cylinder expansion step.
8B is a view showing a cylinder expansion step of the method for constructing a marine wind power tower according to the present invention.
FIG. 8C is a view showing the column joining step of the method for constructing a marine wind power tower according to the present invention.
FIG. 8D is a view showing a lower column unmounting step of the method for constructing a marine wind power tower according to the present invention.
FIG. 8E is a view showing a step of shrinking a cylinder of the method for constructing a marine wind power tower according to the present invention. FIG.
FIG. 8F is a view showing the lower column joining step of the method for constructing a marine wind power tower according to the present invention.
FIG. 8G is a view showing a column unbonding step of a method for constructing a marine wind power tower according to the present invention.

Although the terms used in the present invention have been selected as general terms that are widely used at present, there are some terms selected arbitrarily by the applicant in a specific case. In this case, the meaning described or used in the detailed description part of the invention The meaning must be grasped.

Hereinafter, the technical structure of the present invention will be described in detail with reference to the accompanying drawings and preferred embodiments.

However, the present invention is not limited to the embodiments described herein but may be embodied in other forms. Like reference numerals used to describe the present invention throughout the specification denote like elements.

As shown in FIG. 2, the construction apparatus 100 for a marine wind power tower according to the present invention is a device for constructing a tower by installing a plurality of columns 110 in multiple stages without using a lifting platform equipped with a large crane. to be.

At this time, among the neighboring columns 110, the column located at the upper part can be described as the upper column 111 and the lower column 112 located at the lower part according to the vertical positional relationship.

That is, a tower is installed in a structure in which the upper end of the lower column 112 adjacent to the column 110 and the lower end of the upper column 111 are assembled.

The pillars 110 are a body for supporting a blade rotated by the wind, a nacelle for converting rotational force of the blade into electric energy, and the material and the shape of the blade are not limited as long as they can support the blade and the nacelle .

3, the apparatus 100 for installing a marine wind power tower according to the present invention is an apparatus for forming a tower by installing a plurality of columns 110 in a multi-stage, wherein the cylinder 120, (130), an upper column coupling means (140), and a column coupling means (150).

The cylinder 120 is extended and extended by the hydraulic pressure to raise the upper column 111, and is positioned on the inner side of the lower column 112.

At this time, it is preferable that the cylinder 120 is located at the center of the inner side of the lower column 112, which can effectively cope with the load generated when the cylinder 120 is stretched and contracted.

The lower portion 121 of the cylinder is connected to the lower column coupling means 130 and the upper portion 122 of the cylinder is connected to the upper column coupling means 140.

As shown in FIGS. 4 to 6, a plurality of the cylinders 120 may be used.

When a single cylinder 120 is used, it is necessary to use a high-output cylinder 120 capable of lifting the upper column 111. However, if a plurality of cylinders 120 are used, It is possible to use low-output cylinders 120, and material cost can be reduced, rather than using one high-output cylinder.

At this time, the cylinders 120 are arranged along the inner edge of the lower column 112, and are symmetrical with respect to the lower column 112, thereby lifting the upper column 111 in a balanced manner .

Further, the cylinders 120 are not limited as long as they are positioned at the inner edge of the lower column 112 and are symmetrical to each other.

5, the installation angle of the frame connecting the cylinders 120 is 180 degrees so that the cylinders 120 are symmetrical with respect to each other, And is positioned at the inner edge of the lower column 112.

Further, when the number of the cylinders 120 is three, the crossing angle of the frame is 120 degrees, and the cylinders 120 are symmetrical to each other.

6, when the number of the cylinders 120 is four, the intersection angle of the frame is 90 degrees, and the cylinders 120 are symmetrical to each other.

The lower column coupling means 130 is a means for coupling and releasing the lower portion 121 of the cylinder and the lower column 112.

When the lower column coupling means 130 engages the lower portion 121 of the cylinder and the lower column 112, the load generated when the upper portion 122 of the cylinder is extended is supported.

In addition, when the lower column coupling means 130 releases the engagement between the lower portion 121 of the cylinder and the lower column 112, the lower portion 121 of the cylinder can be contracted.

4, when the cylinders 120 are positioned at the inner edge of the lower column 112 and are disposed at a distance close to the columns 110, as shown in FIG. 4, The lower column coupling means 130 includes a plurality of lower column fastening holes and a pin 132 fastened to the lower column fastening holes.

At this time, it is preferable that the lower column fastening holes are formed in the lower column 112, and the upper and lower column fastening holes are formed at regular intervals such that the upper and lower intervals of the lower column fastening holes coincide with the lengths that the cylinder 120 expands and contracts.

Further, the lower column fastening hole may be used as the column connecting means 150.

5, the lower column coupling means 130 may further include a frame 131 connecting the lower portion 121 of the cylinder to the pin 132. As shown in FIG.

This allows the lower portion 121 of the cylinder to be connected to the frame 131 to lift the upper column 111 in a more balanced and stable manner.

The upper column coupling means 140 is a means for coupling the upper portion 122 of the cylinder to the upper column 111. Although not specifically limited thereto, It can be used in the form of a bracket connected to the inner wall.

When the upper column coupling means 140 engages the upper portion 122 of the cylinder with the upper column 111, the upper portion 122 of the cylinder is extended to lift the upper column 111 .

Also, the upper column coupling means 140 can be separated from the upper column 111.

This is because, when the upper column coupling means 140 is separated from the upper column 111, it is possible to reuse the construction apparatus 100 for a marine wind power tower according to the present invention.

 The column coupling means 150 is a means for coupling and releasing the upper column 111 and the lower column 112.

The column connecting means 150 is not limited as long as it is a means for engaging and disengaging the upper column 111 and the lower column 112. The lower column connecting hole is formed in the lower column fastening hole and the upper column 111, A plurality of upper column fastening holes formed to correspond to the lower column fastening holes and fins fastened to the lower column fastening holes and the upper column fastening holes may be used.

The column connecting means 150 may be formed so as to prevent the upper column 111 from falling down in a state in which the upper column 111 is lifted by the upper portion 122 of the cylinder, Pin.

Further, the upper part 122 of the cylinder may be extended to lift the upper column 111 in a state where the column coupling means 150 is released.

That is, the upper part 122 of the cylinder is extended in a state in which the column coupling means 150 is released and the lower column coupling means 130 is engaged, The column 111 is lifted.

The lower part 121 of the cylinder is contracted by the extension length of the upper part 122 of the cylinder while the lower part of the lower part of the cylinder is coupled with the lower part of the cylinder, The lower portion 121 of the cylinder is raised and the lower column coupling means 130 coupled to the lower portion 121 of the cylinder is also raised.

In this manner, the cylinder 120 repeatedly elongates and contracts to raise the upper column 111 above the lower column 112 to form a tower.

The present invention provides a construction method for constructing a marine wind tower tower construction apparatus.

As shown in FIG. 7, the method for constructing a marine wind power tower according to the present invention includes an upper column elevating step (S10) and a column assembling step (S20).

The upper column elevating step S10 may include a cylinder extension step S11, a column joining step S12, a lower column joining step S13, a cylinder contraction step S14, a lower column joining step S15, Step S16, but it is performed repeatedly.

As shown in FIG. 8A, the column coupling means 150 is released, and in the state where the lower column coupling means 130 and the upper column coupling means 140 are engaged, S11) is performed.

 As shown in FIG. 8B, the cylinder expansion step S11 is a step of lifting the upper column 111 by extending the upper portion 122 of the cylinder.

At this time, the lower column coupling means 130 engages the lower portion 121 of the cylinder and the lower column 112 to support a load generated when the upper portion 122 of the cylinder is elongated.

Further, the cylinder 120 is composed of a plurality of cylinders, so that the upper column 111 can be more stably lifted when one cylinder is used.

Although not specifically limited, the cylinder 120 may be a hydraulic cylinder which is stretched and contracted by hydraulic pressure.

Next, as shown in FIG. 8C, the column joining step S12 of joining the raised upper column 111 and the lower column 112 with the column coupling means 150 is performed.

The column joining step is a step of joining the upper column 111 with the lower column 112 so as not to fall down.

Next, as shown in FIG. 8D, a lower column unfastening step (S13) for releasing the engagement between the lower portion 121 of the cylinder and the lower column 112 is performed.

Next, as shown in FIG. 8E, in a state in which the upper column coupling means 140 and the column coupling means 150 are engaged and the lower column coupling means 130 is released, 121 are contracted is carried out.

The lower portion 121 of the cylinder which is disengaged from the lower column 112 in the cylinder retracting step S14 is contracted by the extended length of the upper portion 122 of the cylinder so that the lower portion 121 of the cylinder 121 ).

Next, as shown in FIG. 8F, a lower column joining step (S15) for joining the lower portion 121 of the cylinder and the lower column 112 is performed.

Next, as shown in FIG. 8G, the column unmating step S16 for releasing the coupling between the upper column 111 and the lower column 112 is performed.

Next, the cylinder extension step S11, the column joining step S12, the lower column joining step S13, the cylinder contraction step S14, the lower column joining step S15, and the column joining step S16) are repeated so that the upper column 111 is raised.

In the column assembling step (S20), the lower end of the raised upper column (111) and the upper end of the lower column (112) are assembled to construct an offshore wind power tower.

The present invention provides a wind turbine tower construction apparatus and a construction method therefor, which are capable of constructing an offshore wind turbine tower without using a heavy equipment mounted on a large crane, It is possible to reduce the restriction on the construction of the offshore wind turbine tower caused by the wind turbine, thereby reducing the construction cost.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is clearly understood that the same is by way of illustration and example only and is not to be taken by way of limitation, Various changes and modifications will be possible.

100: Wind turbine tower installation device for marine use 110: Column
111: upper column 112: lower column
120: cylinder 121: lower part of the cylinder
122: upper part of the cylinder 130: lower column coupling means
131: frame 132: pin
140: upper column coupling means 150: column coupling means

Claims (10)

Wherein a plurality of columns are installed in multiple stages to form a tower, wherein an upper end of a lower column adjacent to one of the columns and a lower end of an upper column are assembled,
A cylinder located upright on the inner side of the lower column and having a length expanded and contracted;
A lower column coupling means for coupling and releasing the lower portion of the cylinder and the lower column;
An upper column coupling means for coupling and releasing the upper column and the upper column of the cylinder; And
And a column connecting means for connecting and disconnecting the upper column and the lower column,
The cylinder coupling means is released, the cylinder is extended in a state where the upper column coupling means and the lower column coupling means are coupled to lift up the upper column,
The upper column coupling means and the column coupling means are engaged, the cylinder is contracted in a state where the lower column coupling means is released,
And the cylinder is repeatedly elongated and contracted to raise the upper column above the lower column.
The method according to claim 1,
Wherein the lower column coupling means includes a plurality of lower column fastening holes formed on the lower column and a pin fastened to the lower column fastening holes.
3. The method of claim 2,
Wherein the lower column coupling means further comprises a frame connecting the lower portion of the cylinder to the pin.
3. The method of claim 2,
The column connecting means includes the lower column fastening hole, a plurality of upper column fastening holes formed in the upper column so as to correspond to the lower column fastening holes, and a pin fastened to the lower column fastening holes and the upper column fastening holes A wind turbine tower construction device for marine use.
3. The method of claim 2,
And the vertical spacing of the lower column fastening holes is constant with respect to the length of expansion and contraction of the cylinder.
The method according to claim 1,
Wherein the number of the cylinders is plural.
The method according to claim 6,
Wherein the cylinders are arranged along the inner edge of the lower column and are symmetrical with respect to each other about the lower column.
A method for constructing an offshore wind turbine tower installation apparatus according to any one of claims 1 to 7, comprising the steps of elevating the upper column and assembling the lower end of the raised upper column and the upper end of the lower column, A method of constructing a wind power tower installation apparatus,
The upper column elevating step
A cylinder extension step in which the column coupling means is released and the upper portion of the cylinder lifts the upper column while the cylinder is extended in a state where the lower column coupling means and the upper column coupling means are engaged;
A column connecting step in which the upper column and the lower column are coupled to each other by a column connecting means so that the raised upper column is not dropped;
A lower column unfastening step in which the lower column fastening means is released;
A cylinder retracting step in which the cylinder is retracted in a state that the upper column engaging means and the column engaging means are engaged and the lower column engaging means is disengaged;
A lower column coupling step of coupling the lower portion of the cylinder and the lower column which are contracted by the lower column coupling means; And
And a column unmounting step in which the column connecting means is released,
Wherein the cylinder extension step, the column joining step, the lower column joining release step, the cylinder contraction step, the lower column joining step, and the column joining release step are repeated.
9. The method of claim 8,
Wherein the number of the cylinders is plural.
9. The method of claim 8,
Wherein the cylinder is expanded and contracted by hydraulic pressure.

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