KR20120072537A - Ship for installing wind power generator and installing method of wind power generator - Google Patents

Abstract

PURPOSE: A ship for installing a wind power generator and an installation method of the wind power generator using the same are provided to facilitate installation of a power generator on the deep sea by installing the power generator without fixing a ship on the seabed. CONSTITUTION: A ship for installing a wind power generator comprises dry cargos(124,126), wet cargos(121,123), and cranes(131). The dry cargos have a space where parts of a wind power generator are built in. A passage is formed in the wet cargos so that water can be entered to the internal space thereof. A side door is rotatably installed in a side wall of the wet cargos. The cranes move the parts of the wind power generator.

Description

Ship for wind power generator installation and wind power generator installation method using the same {SHIP FOR INSTALLING WIND POWER GENERATOR AND INSTALLING METHOD OF WIND POWER GENERATOR}

The present invention relates to a wind turbine installation vessel and a wind turbine installation method, and more particularly, to a ship for installing a wind turbine at sea and a wind turbine installation method using the same.

The wind power market has expanded rapidly, with more than eight times more wind power installations as of 2010 compared to 2001. In addition, offshore wind turbines installed at sea are also increasing rapidly.

The increase in demand for offshore wind power generation is because winds with higher wind speeds are blown compared to the land, and the distance from the residential environment is not affected by various complaints caused by noise. In addition, unlike land, installation cost is not required because the installation site is not secured.

Offshore wind turbines are mainly fixed, so wind turbine installation vessels are also fixed. Fixed wind turbines were installed mainly on shallow shores.

However, in the future, it is expected that a lot of floating wind turbines will be installed on the shore of more than 50M. This is because there are many populated areas on the shallow shores, wind turbines are already installed in considerable areas, and the deeper the water, the more stable wind can be obtained.

In order to install a wind turbine on a deep coast, a ship capable of installing it is required. The wind turbine generator ship, which has been developed so far, mainly consists of a fixed type fixed to the bottom.

However, in order to be fixedly installed on the floor of 50M or more, the floor structure is excessively large, so that a lot of time is required for the movement and installation of the ship, as well as a problem that the manufacturing cost increases.

One embodiment of the present invention is to provide a ship that can easily install a wind turbine on the sea and a wind generator installation method using the same.

Wind generator installation ship according to an aspect of the present invention is a dry cargo having a space in which the components of the wind turbine and a passageway is formed so that water can enter into the inner space, the wet gate is installed on the side wall to be pivotally installed Cargo, and a crane that is fixedly installed to move the components of the wind turbine.

The wet cargo may be provided with a pump for adjusting the inflow of sea water, the gate may be installed so that the lower end is rotatable with respect to the side wall of the vessel.

Further, at least a plurality of ballast tanks are formed below at least one of the dry cargo and the wet cargo, and a pump for supplying seawater to a ballast tank of some of the ballast tanks may be installed, and the wet cargo May be for receiving the lower structure of the wind turbine.

According to one aspect of the present invention, there is provided a method of installing a wind power generator, an assembly step of assembling a wind power generator using a crane, a sea water inflow step of introducing seawater into a wet cargo for a wind power generator, and opening a gate to move the wind power generator. A moving step, a wire installation step of connecting the wires to the wind turbine and fixing them to the sea bottom, and a separation step of separating the wind generator and the ship.

The seawater inflow step may give buoyancy to the wind power generator by the inflow of seawater, and allow the wind power generator to be supported on the bottom of the wet cargo without being fully floated.

The moving step may further include adjusting the balance of the ship by adjusting the amount of water stored in the plurality of ballast tanks installed at the bottom of the ship.

The moving step may move the wind turbine over the gate in the interior of the vessel in the state of installing a buoyant float under the gate.

The departure step may move the vessel in a state in which the wind generator and the gate are spaced apart by moving the vessel down.

According to one aspect of the invention it is possible to install a wind generator without fixing the vessel to the bottom of the sea, it is possible to easily install the wind generator on the deep sea.

In addition, the wind turbine can be assembled on the ship and the wind turbine can be moved by opening the gate in a state filled with seawater, so that the wind turbine can be installed more easily at sea.

In addition, the ballast tank is installed to stably control the change in the center of gravity generated during the installation of the wind power generator can prevent the ship from tilting.

1 is a cutaway side view showing a ship for a wind turbine installation according to an embodiment of the present invention.
Figure 2 is a cross-sectional view schematically showing the interior of the ship for wind turbine installation according to an embodiment of the present invention.
3 is a cross-sectional view of the wet cargo portion cut in the wind turbine installation vessel according to an embodiment of the present invention.
4 is a cross-sectional view of the dry cargo portion cut in the wind turbine installation vessel according to an embodiment of the present invention.
5A to 5F are views for explaining a method of installing a wind power generator using a wind turbine installation vessel according to an embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily carry out the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. In order to clearly illustrate the present invention, parts not related to the description are omitted, and the same or similar components are denoted by the same reference numerals throughout the specification.

1 is a cutaway side view showing a wind turbine installation vessel according to an embodiment of the present invention, Figure 2 is a cross-sectional view schematically showing the interior of a wind turbine installation vessel according to an embodiment of the present invention.

Referring to Figures 1 and 2, the ship 100 according to the present embodiment and the dry cargo (124, 126) and the interior having a space in which the components of the wind turbine (200, shown in Figure 5b) can be built A passage 128 (shown in FIG. 3) is formed to allow water to enter the space, wet cargoes 121 and 123 provided with a gate 127 (shown in FIG. 3) rotatably installed on the sidewall, and wind power The crane 131 is fixedly installed to move the parts of the generator 200 (shown in FIG. 5B). In the ship 100 according to the present embodiment, two dry cargoes 124 and 126 and wet cargoes 121 and 123 are installed, but the present invention is not limited thereto.

The dry cargo 124 and 126 and the wet cargo 121 and 123 are all formed in a room shape having an interior space, and a partition wall dividing the space may be installed therein. Dry cargo (121, 123) stores the components installed on the upper portion of the wind turbine, such as the tower 216 and the blade 214 of the wind turbine generator.

As shown in FIG. 2, the crane 131 is installed to be movable on the partition walls 124a and 126a installed in the dry cargo 124 and 126.

As shown in FIG. 4, a plurality of ballast tanks 156 are stored below the dry cargo 124 and 126. The ballast tanks 156 include a pump 151 for moving the stored seawater. The pump 151 is installed inside the pump chamber 152, and a valve is connected to the pump. The ballast tank 156 and the pump 151 as described above serve to prevent the ship from inclining by moving seawater when the center of gravity changes due to the movement of heavy objects in the installation process of the wind turbine 200.

As shown in FIG. 3, the wet cargoes 121 and 123 accommodate the lower parts 212 positioned below the wind power generator 200. The lower structures 212 of the wind power generator 200 are provided with protection members 180 to prevent breakage due to impact with the ship during movement. The protection member 180 may be formed of a member filled with air therein.

Meanwhile, a ballast tank 154 in which seawater is stored is installed under the wet cargo 121 and 123 in the same manner as the dry cargo 124 and 126. Between the wet cargo 121 and 123 and the ballast tank 154, A pump 129 is installed to regulate the inflow of seawater into the wet cargoes 121 and 123. Accordingly, the wet cargoes 121 and 123 may introduce water stored in the ballast tanks 154 into the inside.

In addition, as shown in FIG. 3, the sidewalls of the wet cargoes 121 and 123 are provided with a gate 127 to be opened, and the gate 127 is rotatably fixed to the side wall of the ship 100. It is. Side of the wet cargo (121, 123) may be opened according to the rotation of the gate 127, the open gate 127 may serve as a guide plate for supporting it when the wind turbine 200 moves. Accordingly, the wind power generator 200 may be introduced into the sea water at a time to prevent the shock from being transmitted to the wind power generator 200 and the ship 100, and in the state where the wind power generator 200 is positioned on the gate 127. It is possible to install wires for mooring.

Opening the gate 127 while the wet cargoes 121 and 123 are filled with seawater can easily move the wind generator 200 located inside the wet cargoes 121 and 123 to the outside of the vessel 100. .

Hereinafter, a method of installing the wind generator 200 using the ship 100 for installing the wind generator 200 according to an embodiment of the present invention will be described with reference to FIGS. 5A to 5F.

In the wind turbine generator 200 installation method according to the present embodiment, an assembly step of assembling the wind turbine generator 200 using the crane 131 and wet sea water in the wet cargoes 121 and 123 in which the wind turbine generator 200 is located. Seawater inflow step to inflow, the moving step of moving the wind turbine 200 by opening the gate 127, the wire installation step of connecting the wire 160 to the wind turbine 200 and fixed to the sea bottom, and wind power It includes a departure step of separating the generator 200 and the vessel 100.

As shown in FIG. 5A, in the assembling step, the cranes 131 are used to assemble the parts 212, 214, and 216 of the wind turbine housed in the ship 100, and the lower parts installed in the wet cargoes 121 and 123. The tower 216 and the blade 214 installed in the dry cargo 124 and 126 are assembled on the component 212. Accordingly, the assembled wind power generator 200 is located in the wet cargo 121.

5B and 3, the seawater inflow step introduces the seawater installed in the ballast tank 154 into the wet cargo 121 using the pump 129 installed in the wet cargo 121. At this time, the load changes due to the inflow of sea water and the weight of the wind turbine 200 decreases due to the buoyancy, thereby controlling the balance of the vessel 100 by adjusting the amount of water stored in the ballast tanks 154 and 156. That is, by moving the water in the direction opposite to the direction in which the vessel 100 is inclined to prevent the vessel 100 is inclined.

When the seawater is introduced into the wet cargo 121, the wind generator 200 does not float completely, but is supported by the bottom of the wet cargo 121 with some load. If the wind turbine 200 rises because the position becomes unstable because the risk of collision with the ship 100 increases. However, since the set amount of seawater is introduced and buoyancy is generated, the weight of the wind turbine 200 is reduced, so that the wind turbine 200 can be moved more easily.

As shown in FIGS. 5C and 5D, the moving step may include the gate 127 opened inside the ship with the gate 127 open and a buoyant float 170 installed under the gate 127. Move the wind turbine 200 up. At this time, after installing the roller 175 or the like under the wind turbine 200, the wind turbine 200 is moved by the crane 131, the floating gate 170 is installed on the gate 127, the wind generator ( Even if 200 is positioned on the gate, the gate 127 may be supported without moving downward. Since the center of gravity of the vessel 100 changes during the movement, the water stored in the ballast tanks 154 and 156 is moved to prevent the vessel 100 from tilting.

As shown in FIG. 5E, the wire installation step secures the wire 160 to the wind turbine 200 and the sea bottom to prevent the wind generator 200 from moving a great distance with respect to the sea bottom.

As shown in FIG. 5F, the separation step introduces water into the vessel 100, causing the vessel 100 to sink more than the wind turbine 200 so that the wind turbine 200 floats on the water completely by buoyancy. At this time, since the wind turbine 200 rises on the gate 127, the ship 100 and the wind turbine 200 can be easily separated.

As described above, according to the installation method of the wind power generator 200 according to the present embodiment, the wind power generator 200 may be easily installed using the floating vessel 100. In addition, since the gate 127 is opened and the wind turbine 200 is moved in a state where seawater is introduced, the wind turbine 200 may be more easily installed.

Although one embodiment of the present invention has been described above, the spirit of the present invention is not limited to the embodiments set forth herein, and those skilled in the art who understand the spirit of the present invention, within the scope of the same idea, the addition of components Other embodiments may be easily proposed by changing, deleting, adding, and the like, but this will also fall within the spirit of the present invention.

100: ship 121, 123: dry cargo
121, 123: wet cargo 124a, 126a: partition wall
127: portal 128: passage
129: pump 131: crane
160: wire 151: pump
152: pump chamber 154, 156: ballast tank
160: wire 170: floating body
175: roller 180: protective member
200: wind power generator 212: lower parts
214: blade 216: tower

Claims (10)

Dry cargo having a space in which wind turbine components can be built;
A wet cargo in which a passage is formed to allow water to enter the internal space, and a portal is rotatably installed on the side wall; And
A crane fixedly installed to move parts of the wind turbine;
Wind generator installation vessel comprising a. The method of claim 1,
The wet cargo ship is a wind generator installation vessel is installed that can control the inflow of sea water. The method of claim 1,
The portal is a wind turbine installation vessel installed so that the lower end is rotatable with respect to the side wall of the vessel. The method of claim 1,
At least a plurality of ballast tanks are formed below at least one of the dry cargo and the wet cargo, the wind turbine installation vessel is provided with a pump for supplying seawater to the ballast tank of some of the ballast tanks. The method of claim 1,
The wet cargo is a wind turbine generator for receiving the lower structure of the wind turbine generator. An assembly step of assembling the wind power generator using the crane;
Sea water inflow step of introducing sea water to the wet cargo for wind turbines;
A moving step of moving the wind turbine by opening the gate;
A wire installation step of fixing the wire to the wind turbine by connecting the wire to the bottom;
A separation step of separating the wind generator and the ship;
Installation method of the wind turbine comprising a. The method of claim 6,
The seawater inflow step gives buoyancy to the wind power generator by the inflow of sea water, and the wind power generator installation method so that the wind power generator is supported on the bottom of the wet cargo without completely floating. The method of claim 6,
The moving step further comprises the step of adjusting the balance of the vessel by adjusting the amount of water stored in the plurality of ballast tanks installed on the bottom of the ship. The method of claim 6,
The moving step is a wind turbine installation method for moving the wind turbine over the gate in the interior of the vessel in the state of installing a buoyant float under the gate. The method of claim 6,
The detaching step is a method of installing a wind generator to move the ship in a state in which the gate is moved apart from the wind generator by moving down.

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