KR101013789B1 - Method of establishing Sea wind power generator and apparatus thereof - Google Patents

Abstract

An installation means for an offshore wind turbine is disclosed. The installation means in the installation of the wind power generator 10 on the sea, the base structure 20 and the pants 30 are installed in close proximity to the base structure 20 and the trolley for transferring the structure to the pants structure 40 By installing and transporting the structures transferred to the foundation 20 using the strand jack 50 in sequence with the lower structure, the structures divided from the pants, respectively, using the rail member and the bogie easily It can be transferred to the upper part, and the installation work of the wind turbine generator can be done quickly and easily, and it will not only shorten the construction period but also reduce the construction cost because it will not produce a dedicated crane vessel for installing the offshore wind turbine. And, because the work is performed on the upper part of the marine foundation structure, it is not influenced by the sea condition, and the work is structurally stable Since it is made on the upper part of the structure, it is possible to secure the horizontal state of the structure that has an absolute influence on the rotation of the blade or the rotor, and as a result, the effect of improving the stability of the entire structure is provided.

Offshore, Wind Turbine, Strand Jack

Description

Method of establishing sea wind power generator and apparatus

The present invention relates to a method for installing an offshore wind turbine and a device therefor, and in particular, to install the foundation and the pants in close proximity, and install the strand jack on the upper part of the foundation to rail the wind turbine parts from the pants to the guide beam of the strand jack. The present invention relates to a marine wind generator installation method and apparatus which can be installed quickly and easily and at low cost by repeating a process of sequentially lifting after transporting using the same.

Due to the ongoing cost increase of fossil fuels and the environmental damage caused by harmful gases from fossil fuels, the depletion of fossil fuels and the potential risks associated with nuclear power generation, As an alternative, wind power generation has been required to convert wind power into electrical energy.

In particular, wind power generation is a pollution-free energy source in a natural state and is the most economical energy source among alternative energy sources by current technology. Wind power generation is a technology that directly supplies the power generated by converting wind power into electric energy to the power system or consumers. If such wind power generation is used, the land use efficiency such as mountainous, coastal outland, and dike is improved. It can be.

Because of these advantages, wind power systems are recognized as the most viable alternative energy sources and wind power systems of around 32,154 MW (total 2002) are already being installed and used worldwide. Among them, the capacity of wind power generation system installed in 2012 is 7,227MW, which is larger than the capacity of nuclear power plants built that year.

Korea also has a strong interest in wind power generation systems in order to cope with changes in the international environment such as the World Climate Change Convention, rising oil prices, and realistic problems that depend on imports for 96% of domestic energy use.

In particular, the wind power generation system has been recently introduced to increase dramatically because the structure or installation is simple, easy to operate and manage, unmanned and automated operation.

On the other hand, in the past, wind power structures were mainly made on land, but due to problems such as wind resources, aesthetics, and constraints of places, recently, large-scale wind farms are being constructed at sea. However, in order to safely construct a wind turbine structure at sea, a safe installation method for a blade and a structure (tower) to be installed at a high position is required.

In Europe, where construction demand for wind power generation structures is high, special crane ships are dedicated to the installation of structures. However, leasing dedicated crane vessels for the installation of wind power structures in the waters around the Korean peninsula is expensive. In addition, the construction of a dedicated crane ship is also still in low demand, so the use of the investment is greatly reduced compared to many investment costs.

Below we will look at the prior art to install a wind turbine on the sea.

First, Patent Application No. 10-2002-7005923 (2002.05.08) has a "method and system for installing and transporting offshore wind power generators on the sea", but this is made by constructing a wind generator on land and transporting it to a crane ship. Filled with water in the water tank formed in it is to be placed on the sea floor has a limit in the weight and size of the wind power generator, there is a big problem in safety because it is not firmly fixed to the sea.

In addition, Patent Application No. 10-2003-7001174 (January 27, 2003) discloses a "floating structure for installing a wind turbine offshore", but the structure is floating to support the floating structure installed wind turbine as a connecting line Therefore, it is difficult to install the connection line stably, there is a problem that the safety is very low due to the movement of the structure by the waves.

In addition, Patent Registration No. 10-0798083 discloses a 'offshore wind turbine installation method using an induction rail'. This is to install the lower column on the seabed and join the two barges on the upper periphery of the lower column respectively to form a work deck, and install a tower crane post around the upper part of the lower column to raise the intermediate column to the ceiling crane. It is configured, and the guide rail in the vertical direction of the intermediate circumference is configured to be coupled to the intermediate circumference by raising the nussel part to the rail, there is a problem that the configuration is complicated and takes a lot of work period.

The present invention has been made to solve the problems of the prior art as described above, the technical problem of the present invention is to install the components of the wind generator, for example, the structure of the tower structure or the nussel part quickly and easily in the vertical direction To provide a means to do so.

In order to solve the above technical problem, the present invention,

A foundation structure installed on the sea bottom so that the upper portion is located above the sea surface;

A trouser having a crane and installed in a proximal position of the foundation structure;

Rail members are installed to be connected to the upper surface of the base and the upper surface of the pants so that the cart can move; And

And a strand jack installed on an upper portion of the foundation structure so as to sequentially lift tower structures of the wind power generator transferred from the pants to the foundation structure by the rail member.

The tower structures located in the pants are transferred to the lower portion of the guide beam of the strand jack by using the trolley and the rail member, and the transferred tower structures are lifted upward by using the strand jack, and then other tower structures are coupled to the lower side. And, using the crane provides a marine wind turbine installation apparatus characterized in that the top structure of the wind turbine is transferred to the top of the tower structure to be coupled to each other.

The strand jack is characterized by consisting of a cable, a hydraulic cylinder, the upper anchor and the lower anchor.

And, the base structure is offshore wind turbine generator, characterized in that made of any one or more structures selected from the structure of the tower structure, tower structure, and concrete structure.

On the other hand, a) installing the rail members to be connected to each other on the upper surface of the upper and the base of the base structure is installed on the sea floor so that the cart is moved;

b) installing a strand jack on top of the foundation structure;

c) The upper tower structure, which is the top structure of the wind turbine structures, is coupled to the lower portion of the guide beam of the strand jack by using a trolley from a trouser, and then lifted upwards using the strand jack. Transferring from the pants to the lower portion of the upper tower structure by using a trolley, and then lowering the upper side tower structure by using the strand jack to combine with the lower side tower structure;

d) lift the lower side tower structure into the strand jack until the upper portion of the upper side tower structure protrudes above the guide beam of the strand jack, and then use the bogie to move the other lower side tower structure from the pants to the lower side. The lower tower structure is transferred to the lower part of the tower structure, and the lower tower structure is lowered by the strand jack, and the upper tower structure is projected to the upper part of the strand jack by repeating the coupling process with another lower tower structure. Coupling a top structure to the structure by using the crane;

e) With the top structure coupled to the top side tower structure, lift the bottom side tower structure with the strand jack and then transfer another bottom side tower structure from the pants to the bottom of the bottom side tower structure, again. Lowering the lower tower structure with the strand jack to repeat the process of coupling the lower tower structure to complete a tower structure having a design height; And

f) coupling the lower portion of the completed tower structure with the upper portion of the foundation structure provides a marine wind turbine installation method comprising a.

And, the step a) further comprises the step of installing the foundation structure on the seabed, the foundation structure on the seabed so that the upper portion is located above the sea surface, and the step of installing the pants in the vicinity of the foundation structure; Characterized in that made.

In addition, step f),

f-1) lifting the tower structure by using the strand jack, removing the bogie and the rail member, and lowering again to couple the lower part of the tower structure to the upper part of the foundation structure; And

f-2) removing the strand jack and the pants when the lower part of the tower structure is coupled to the foundation structure.

According to the marine wind generator installation method and apparatus as described above, the structures divided from the pants can be easily transferred to the upper portion of the foundation structure using the rail member and the bogie, and the transferred structures can be easily carried out using the strand jack. After lifting to the upper part and repeating the process of transporting the other structure to the lower part and repeating, the installation work of the wind power generator is achieved by combining the top structures such as blades, rotors and nussels on the top of the tower structure by using the crane of the pants. It can be done quickly and easily.

In addition, since the construction of a dedicated crane vessel for installing the offshore wind turbine is not produced, not only the construction period is shortened, but also the construction cost is reduced, and work is performed on the upper part of the offshore foundation, so it is not affected by the maritime conditions.

In addition, since the work is performed on the structurally stable foundation, it is possible to secure the horizontal state of the structure which has an absolute influence on the rotation of the bleed or the rotor, and as a result, the effect of improving the stability of the entire structure is provided. .

When described in detail with reference to the accompanying drawings a preferred embodiment of the present invention having the features as described above.

1 of the accompanying drawings is a schematic diagram showing an apparatus for installing a marine wind turbine according to the present invention.

As shown in FIG. 1, the offshore wind turbine installation apparatus includes a foundation structure 20 installed on the seabed, pants (30: SEPBARGE -Self Elavation Platform Barge line) installed close to the foundation structure 20, and , Rail member 40 is installed on the upper portion and the pants 30 of the foundation structure 20, and the strand jack (50: Strand Jack) is installed on the upper portion of the foundation structure (20).

Looking at this in more detail as follows.

The foundation structure 20 may be formed of a concrete structure or a jacket (Jacket) structure, and forms a foundation by driving a pile / suction pile, etc. in the seabed, and then forms the foundation structure 20 using a general method for this foundation. . At this time, the deck 22 is formed on the upper portion of the foundation structure 20 to enable the boat landing (ship of the ship) later. To this end, the upper portion of the foundation structure 20 is preferably installed to be located above the sea level.

The pants 30 store parts (blade, rotor, nutshell, tower structure, etc.) of the wind power generator 10 transported from the land, and are used as a space for various other operations. The pants 30 are provided with a crane 32 for lifting the uppermost structure (blade, rotor, nutshell) and the like from the components of the wind turbine 10 to the tower structure 12. In addition, the pants 30 are preferably installed in the vicinity of the base structure 20 to facilitate the operation of transferring the various parts to the upper side of the base structure 20, such pants 30 is a general structure itself It has a height adjusting device.

The rail member 40 is a means for transferring the tower structures 12 manufactured by dividing the deck structure 22 from the pants 30 into the deck 22. The deck 22 and the pants of the foundation structure 20 After the height of 30 is the same, install the rail member 40. In addition, the rail member 40 is provided with a cart 42 so that the tower structure 12 can be easily transported.

The strand jack 50 is for lifting the divided tower structures 12 of the wind power generator 10 transferred from the pants 30 to the foundation 20 in order. The hydraulic cylinder 54 and And a cable 56, an upper anchor 58, a lower anchor 57 and a jack support beam 59, a guide beam 52, a shackle provided at the end of the cable 56, and the like.

In more detail, the piston 54-2 of the hydraulic cylinder 54 is coupled to the upper anchor block 58-1 of the upper anchor 58, and the cylinder body 54-1 is the lower anchor 57 Is coupled to the lower anchor block 57-1, and the lifting jaws 58-2 and 57-2 are coupled to the respective blocks 58-1 and 57-1, respectively. 2,57-2 is a cable 56 is installed through. The strand jack 50 of this structure extends the length of the cable 56 to the upper hanger block 58-1 of the upper anchor 58 as the hydraulic cylinder 54 stretches the piston 54-2. When moving in the direction, each lifting jaw (58-2, 57-2) is to move the cable 56 in only one direction. Thus, the cable 56 is able to lift the heavy.

The strand jack 50 according to the present application is schematically represented, but is not limited thereto, and jacks of more various structures may be provided.

The process of installing the strand jack 50 of this structure will be described.

First, at least four jack support beams 59 are installed vertically on the upper part of the foundation structure 20 or on the deck 22, but the height is higher than that of the tower structure 12 of one block. . Subsequently, the upper portion of each jack support beam 59 is firmly supported by being connected to the guide beam 52. Subsequently, a cable 56 is installed on the top of the jack support beam 59 as shown in FIG. 1, and each end is fixed to the deck 22. Subsequently, the strand jack 50 having the structure described above is attached to the cable 56. (On the contrary, after the strand jack 50 is installed, the cable 56 is connected through the jack support beam 59.) Installation of the deck jack 50 is completed by such a process.

The process of installing the wind turbine generator 10 using the marine wind turbine generator according to the present invention configured as described above will be described below with reference to FIGS. 2A to 2G.

First, as shown in FIG. 2A, the rail member 40 is installed to be connected to each other on the upper surface of the trouser 30 and the upper portion of the foundation structure 20 installed on the sea floor so that the cart 42 is moved.

At this time, the foundation 20 is installed on the seabed, the foundation 20 is installed on the seabed so that the upper portion is located above the sea level, the pants 30 are installed in the vicinity of the foundation 20, Deck 22 is installed on the upper portion of the foundation 20 to enable boat landing.

Subsequently, as shown in FIG. 1, at least four jack support beams 59 are vertically installed on the upper part of the foundation 20 including the deck 22, and the upper part of each jack support beam 59 is a guide beam. (52) and then firmly supported by each cable 56 is installed so as to be supported on the top of each jack support beam (59) and each end is fixed to the deck (22). And the cable 56 is connected to the strand jack (50).

When the strand jack 50 is installed in the above-described process, as shown in FIG. 2B, the upper side tower structure 12A formed so as to be coupled to the uppermost structure 14 among the structures of the wind power generator 10 may have pants 30. The lifting support member of the strand jack 50 (the lower part of the object to be lifted) by transferring it to the center of the guide beam 52 of the strand jack 50, that is, between the respective jack support beams 59, using the cart 42 from the On top of the device). The lifting support member is positioned between the pair of rail members 40 to support the lower portion of the upper tower structure 12A carried by the cart 42. The strand jack 50 is then operated as shown in FIG. 2C to lift the initially transported upper side tower structure 12A upwards. At this time, the height of lifting the upper side tower structure 12A should be higher than the height of the lower side tower structure 12B to be coupled with the upper side tower structure 12A. This is to allow the lower tower structure 12B to enter the lower portion without interference.

Subsequently, as shown in FIG. 2D, the lower side tower structure 12B is transferred from the pants 30 to the lower portion of the upper side tower structure 12A by using the bogie 42 and then using the strand jack 50. The upper side tower structure 12A is lowered and seated on the upper side of the lower side tower structure 12B, and then firmly coupled to each other.

Subsequently, the lower side tower structure 12B enters the strand jack 50 until the upper portion of the upper side tower structure 12A protrudes above the guide beam 52 of the strand jack 50 and then the bogie. (42) is used to transfer another lower side tower structure 12C from the pants 30 to the lower side of the lower side tower structure 12B, and lower the lower side tower structure 12B with the strand jack 50 again. The process of combining the lower side tower structure 12B and the other lower side tower structure 12C is repeated. This is to prevent interference with surrounding structures such as guide beams 52 when the top structure 14 is coupled to the top side tower structure 12A.

When the upper tower structure 12A protrudes to the top of the strand jack 50 in this process, as shown in FIG. 2E, the uppermost structure 14 is mounted on the upper side tower structure 12A using the crane 32. Raise to the top and firmly bond to each other.

At this time, the blades of the uppermost structure 14 may be separately installed using the crane 32 after the non-cell unit is coupled to the upper tower structure 12A.

On the other hand, when the uppermost structure 14 is coupled to the upper side tower structure 12A, lift the lower side tower structure 12C with the strand jack 50 as shown in Figure 2f and then another from the pants 30 Transfer the lower side tower structure 12D to the lower side of the lower side tower structure 12C, and lower the lower side tower structure 12C with the strand jack 50 to combine with the lower side tower structure 12D. Repeat to complete the tower structure 12 of the design height.

Subsequently, as shown in FIG. 2G, when the tower structure 12 is completed, the lowermost part of the tower structure 12 is firmly coupled with the upper portion of the foundation 20. To this end, the whole of the tower structure 12 is lifted using the strand jack 50, and then the cart 42 and the rail member 40 are removed, and the tower structure 12 is placed on the upper portion of the foundation 20 by lowering again. Combine the lower portion of, and the lower portion of the tower structure 12 is coupled to the foundation 20 to remove the strand jack 50 and the pants 30.

At this time, the deck 22 is not removed. This is to allow the ship for later maintenance to be easily docked.

As described above, in installing the wind power generator 10 on the sea, the base structure 20 and the pants 30 are installed in close proximity to the sea after the structure 20 and the rail member 40 for transporting the structure to the pants. By installing the, the structure transferred to the foundation structure 20 by using the strand jack 50 by sequentially lifting the combined with the lower structure, the wind generator 10 can be installed quickly and easily at sea, installation cost This can be reduced and more stable work can be carried out.

In the above, preferred embodiments of the present invention have been described, but those skilled in the art to which the present invention belongs without departing from the technical scope of the present invention changes and modifications belong to the scope of the present invention Of course.

1 is a schematic view showing an offshore wind turbine installation apparatus according to the present invention.

Figure 2a, 2b, 2c, 2d, 2e, 2f, 2g is a schematic diagram for explaining the process of installing a wind power generator using the marine wind turbine installation apparatus according to the present invention.

3 is a schematic view for explaining a strand jack applied to the present invention.

<Description of the symbols for the main parts of the drawings>

10: wind power generator 12: tower structure

12A: Upper side tower structure 12B, 12C, 12D: Lower side tower structure

14: top structure 20: foundation structure

28: Deck 30: Pants

32: crane 40: rail member

42: Balance 50: Strand Jack

52: guide beam 54: hydraulic cylinder

56: Cable 57: Lower Anchor

58: upper anchor 59: jack support beam

Claims (7)

delete A foundation structure 20 formed of at least one structure selected from a jacket structure, a tower structure, a deformed tower structure, and a concrete structure installed on the sea floor so that the upper portion is positioned above the sea surface; A trouser (30) having a crane (32) installed in a proximal position of the foundation structure (20); A rail member 40 installed to be connected to the upper surface of the base structure 20 and the upper surface of the pants 30 so that the cart 42 can move; And The structure of the foundation 20 to sequentially lift the tower structure 12 of the wind turbine generator 10, which is transferred from the pants 30 to the foundation 20 by the rail member 40 sequentially It includes; strand jack 50 is installed on the top, The strand jack 50, It consists of a hydraulic cylinder (54), a cable (56), a lower anchor (57) and an upper anchor (58), The divided tower structures 12 located in the pants 30 are transferred to the lower portion of the guide beam 52 of the strand jack 50 by using the trolley 42 and the rail member 40, and the transferred towers. Lift the structures 12 to the upper side by using the strand jack 50, and then combine the other tower structure 12 on the lower side, and using the crane 32, the uppermost structure 14 of the wind turbine 10 ) Offshore wind turbine installation apparatus characterized in that to be coupled to each other by moving to the top of the tower structure (12). delete a) installing the rail members 40 to be connected to each other on the upper surface of the pants 30 and the upper portion of the foundation 20 installed on the seabed so that the cart 42 moves; b) installing a strand jack (50), a jack support beam (59), a guide beam (52) on top of the foundation structure (20); c) the guide beam 52 of the strand jack 50 using the trolley 42 from the trouser 30 to the upper side tower structure 12A to which the top structure 14 is coupled among the structures of the wind turbine 10. The lower side tower structure 12B is lifted to the upper side using the strand jack 50, and the lower side tower structure 12B is removed from the pants 30 using the trolley 42. Lowering the upper side tower structure (12A) using the strand jack (50) and then coupling the lower side tower structure (12B) to the lower side; d) the lower side tower structure 12B enters the strand jack 50 until the upper portion of the upper side tower structure 12A protrudes above the guide beam 52 of the strand jack 50; The lower 42 of the lower tower structure 12B is transferred from the trouser 30 to the lower portion of the lower tower structure 12B by using the trolley 42, and the lower side tower structure 12 is transferred to the strand jack 50 again. 12B) is lowered to repeat the coupling process with the other lower side tower structure 12C and the upper side tower structure 12A protrudes above the guide beam 52 of the strand jack 50, to the pants 30 Coupling the uppermost structure 14 to the upper side tower structure 12A by using the provided crane 32; e) With the top structure 14 coupled to the top side tower structure 12A, lift the bottom side tower structure 12C with the strand jack 50 and then another bottom from the pants 30. The lower side tower structure 12D is transferred to the lower side of the lower side tower structure 12C, and the lower side tower structure 12C is lowered to the strand jack 50 to couple the lower side tower structure 12D. Repeating the process to complete the tower structure 12 of the design height; And f) coupling the lower portion of the completed tower structure (12) with the upper portion of the foundation structure (20). The method according to claim 4, wherein the step a), a-1) installing the foundation 20 on the seabed, and installing the foundation 20 on the seabed so that its top is located above the sea level; a-2) The method of installing the offshore wind turbine, characterized in that further comprising the step of installing the pants (30) in the proximity of the base structure (20). The method according to claim 5, wherein the step a), a-3) a marine wind turbine installation method further comprising the step of installing a deck (22) to enable the boat landing on top of the foundation structure (20). The method according to any one of claims 4 to 6, wherein step f) f-1) After lifting the tower structure 12 using the strand jack 50, the cart 42 and the rail member 40 is removed and lowered again to the upper portion of the foundation 20 Coupling a lower portion of the tower structure 12; And f-2) when the lower portion of the tower structure 12 is coupled to the base structure 20, the step of removing the strand jack 50 and the pants 30; Offshore wind turbine further comprises a How to install.

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