KR101280523B1 - A ship for repairing maritime structure - Google Patents

Abstract

A marine structure repair vessel is disclosed. The marine structure repair ship according to an embodiment of the present invention, the hull having a U-shaped catamaran linear bow portion to be inserted into the offshore structure is installed offshore wind power generator; And an eyepiece provided at the bow portion to fix the hull to the marine structure.

Description

Marine Structure Repair Ships {A SHIP FOR REPAIRING MARITIME STRUCTURE}

The present invention relates to a ship for repairing offshore structures, and more particularly, to a ship for repairing offshore structures that can dock a ship quickly, accurately and safely on an offshore structure provided with an offshore wind power generator.

Generally, typical types of power generation for generating electricity include thermal power generation using fossil fuel as an energy source and nuclear power generation using nuclear power.

However, thermal power generation has a problem of causing pollution due to utilization of the energy generated by the combustion of fossil fuel and a huge construction cost.

In addition, nuclear power generation is advantageous to produce a large amount of electricity, but it requires huge facility costs to block the radiation leakage and the strong reaction of local residents is expected due to the risk of radiation leakage. Furthermore, waste disposal is not easy and it is a minor accident. However, there are various problems, such as always presenting a risk that can cause serious environmental damage.

Therefore, researches are actively conducted to utilize natural energy such as wind power, tidal power, hydroelectric power, and solar energy as an energy source as a permanent energy source free from exhaustion problems due to firepower or nuclear power generation.

In particular, wind power is emerging as an alternative in terms of the use of natural energy among power generation using natural energy. Wind power generation is simple in structure and installation, easy to operate and manage, and unmanned and automated. As a result, the introduction has increased dramatically in recent years.

On the other hand, in the past, wind power structures were mainly made on land, but due to various problems such as environmental damage caused by noise and vibration, increased power generation capacity, and aesthetics and limitations of place, wind farms have recently become intensive. The trend is to build them in groups.

In offshore wind power generation, a circular columnar offshore structure is constructed and a generator is installed at a predetermined position, and when a blade connected to the generator receives wind power, power generation occurs in the generator.

For the installation and maintenance of the offshore wind turbine, the barge is brought close to the offshore structure, the barge is anchored using an anchor, and the barge is docked on the offshore structure.

However, since the marine structure has a circular columnar shape, it is not easy to dock the barge to the marine structure, and even if there is a separate docking facility, the marine structure may not be accurate in the case of bad wind conditions or bad sea conditions such as after dawn and sunset. It is not easy to dock the barge at the location quickly, and in case of an emergency such as a storm, it is impossible to berth the offshore structure, so the maintenance work of the power plant is not smooth and the wind power generator is often not operated. There is a problem.

In addition, the time required for anchoring the offshore structure to berth the ship to the sea structure takes a lot of time, the working time is shortened and the stability is also insufficient, and the berthing between the ship and the sea structure when the sea weather suddenly changes unexpectedly There is a problem in that the ship is damaged or human injury occurs due to contact and collision during over-eye.

Accordingly, the technical problem to be achieved by the present invention is to provide a ship to the offshore structure provided with offshore wind power generators by providing an eyepiece for fixing the hull to the offshore structure by making the bow portion of the hull in a catamaran linear form. And to provide a ship for repairing offshore structures that can be safely docked.

According to an aspect of the invention, the hull having a U-shaped catamaran linear bow portion to be inserted into the offshore structure is installed offshore wind turbine; And an eyepiece provided at the bow portion to fix the hull to the marine structure.

The eyepiece may include a first fixing unit to closely contact an outer circumferential surface of the marine structure when the marine structure is inserted into the bow portion of the hull.

The first fixing unit may include a first frame part which closely contacts the outer circumferential surface of the marine structure in both directions; And it may include a first spacing adjuster for adjusting the spacing between the first frame portion and the outer peripheral surface of the marine structure.

The first fixing unit may further include a buffer member provided on a surface in close contact with the marine structure of the first frame portion.

The eyepiece device may further include a second fixing unit installed above the first fixing unit and in close contact with an outer circumferential surface of the marine structure when the marine structure is inserted into the bow portion of the hull.

The second fixing unit may include a second frame portion which closely contacts the outer circumferential surface of the marine structure in both directions; And a second gap adjusting part for adjusting a gap between the second frame part and an outer circumferential surface of the marine structure.

The second fixing unit may be installed between the second frame portion and the second gap adjusting portion, and may further include an elevating portion for elevating the second frame portion up and down.

The bow portion may be further installed with a crane for loading and unloading cargo.

Embodiments of the present invention, by manufacturing the bow portion of the hull so that the marine structure is inserted into a linear, and by installing an eyepiece for fixing the hull to the marine structure inserted into the bow portion, it is possible to dock the vessel to the marine structure quickly and accurately In addition, it is possible to prevent damage to the ship and offshore structures due to the collision of the ship's berth and to prevent human damage.

1 is a schematic view showing a state in which the vessel is docked to the offshore structure according to an embodiment of the present invention.
2 is a plan view showing a marine structure repair vessel according to an embodiment of the present invention.
3 is a plan view showing a first fixing unit according to an embodiment of the present invention.
Figure 4 is a side cross-sectional view showing a second fixing unit according to an embodiment of the present invention.
5 is a plan view illustrating a second frame unit according to an exemplary embodiment of the present invention.

In order to fully understand the present invention, operational advantages of the present invention, and objects achieved by the practice of the present invention, reference should be made to the accompanying drawings and the accompanying drawings which illustrate preferred embodiments of the present invention.

Hereinafter, the present invention will be described in detail with reference to the preferred embodiments of the present invention with reference to the accompanying drawings. Like reference symbols in the drawings denote like elements.

1 is a schematic diagram showing a state in which the vessel is docked in the offshore structure according to an embodiment of the present invention, Figure 2 is a plan view showing a marine structure repair vessel according to an embodiment of the present invention, Figure 3 is a present invention 4 is a plan view showing a first fixing unit according to an embodiment of the present invention, FIG. 4 is a side cross-sectional view showing a second fixing unit according to an embodiment of the present invention, and FIG. 5 is a second frame according to an embodiment of the present invention. It is a top view which shows a part.

Referring to FIG. 1, the offshore wind power generator 100 is installed in a coastal region with strong wind speed because it uses kinetic energy of wind as an energy source. Offshore wind power generator 100 is a blade 110 receives the force of the wind, the rotor 110 is coupled to the blade 110 is rotated when the blade 110 receives the force of the wind, and the rotary shaft of the rotor 120 When the rotor 120 is rotated to achieve the drive shaft 130 and rotates, and includes a wind generator 140 for generating electricity in accordance with the rotation of the rotor 120.

The blade 110 is a wind-powered device. Blade 110 may be formed of three wings so as to pursue stability while maximizing the characteristics of the wind, but is not limited thereto.

The blade 110 is installed in a bidirectional type blade 110 that can be freely rotated in a clockwise or counterclockwise direction, in particular, should be installed in consideration of the wind blowing toward the land during the day, towards the sea at night.

The rotor 120 is a device to which the blade 110 is coupled and may rotate by receiving the force of the wind by the blade 110.

The drive shaft 130 is a device that forms a rotation axis of the rotor 120 and rotates together when the rotor 120 rotates.

Wind power generator 140 is a device for generating electricity by the rotation of the rotor (120).

In addition, the offshore wind power generator 100 including the blade 110, the rotor 120, the drive shaft 130, and the wind turbine 140 is supported by the offshore structure 150 disposed perpendicular to the sea surface. .

Offshore structure 150 is a structure to position the blade 110, the rotor 120, the drive shaft 130 and the wind turbine 140 on the top of the sea surface.

The marine structure 150 may be formed in a circular columnar shape or a conical shape having a smaller diameter toward the top in consideration of wind power, but is not limited thereto. On the other hand, the offshore structure 150 may be firmly fixed to the bottom of the sea bottom, it may be installed in a floating state on the sea surface.

As such, the offshore wind power generator 100 is the blade 110, the rotor 120 and the drive shaft 130 is rotated when the kinetic energy of the wind is transmitted to the blade 110 installed on the top of the sea surface, the wind power generator ( 140 to transmit the rotational force. The wind power generator 140 generates electricity by using the transmitted rotational force. The generated electricity is transferred to a current collector (not shown) through a plurality of cables (not shown) that are securely wired through the offshore structure 150.

In order to install and maintain the offshore wind power generator 100, the offshore structure 150 must be securely and quickly docked with the ship.

1 to 5, the marine structure repair ship according to an embodiment of the present invention, the hull 200 having a catamaran linear bow portion 210, and the hull portion 210 of the hull 200 is provided with a hull An eyepiece 300 for fixing the 200 to the offshore structure 150 on which the offshore wind power generator 100 is installed, and a crane installed on the deck 250 of the hull 200 to be used for loading and unloading cargo. 400.

Referring to FIGS. 1 and 2, the hull 200 includes a bow portion 210 corresponding to the front part of the longitudinal direction and a stern part 230 corresponding to the rear part of the longitudinal direction and the stern is located. .

In this embodiment, the bow portion 210 may be manufactured in a catamaran linear shape so that the offshore structure 150 having a circular columnar shape in which the offshore wind power generator 100 is installed can be inserted. That is, the catamaran linear bow portion is manufactured to have the U-shaped groove portion 215, the marine structure 150 is inserted into the U-shaped groove portion 215, and the hull 200 is fixed to the marine structure 150.

As such, when the bow portion 210 is manufactured in a catamaran linear form, the offshore structure 150 may be inserted to be seated on the U-shaped bow portion 210 so that the hull 200 is accurately and quickly inserted into the offshore structure 150. There is an advantage to docking.

On the other hand, in the case where the bow portion 210 manufactures the hull 200 which is a catamaran linear, the width of the hull 200 is increased in length, so that the deck has a wide deck 250, thereby greatly increasing the work space and increasing the restoration moment. Is increased.

And, as the deck 250 of the hull 200 widens, the deck 250 of the hull 200 has a crane (400) for unloading and loading cargo adjacent to the eyepiece 300 to be described later 210 may be installed. The crane 400 may be used to check whether there is a failure of a mechanical and electrical system installed in the offshore wind turbine 100 when carrying cargo or to maintain, repair and repair the offshore wind turbine 100.

1 to 5, the eyepiece 300 serves to fix the hull 200 to the marine structure 150 when the marine structure 150 is inserted into the catamaran linear bow portion 210.

The eyepiece 300 is provided in the bow portion 210 of the hull 200, the first fixed to be in close contact with the outer peripheral surface of the offshore structure 150 when the marine structure 150 is inserted into the U-shaped catamaran linear bow portion 210 The unit 310 and the second fixing which is installed above the first fixing unit 310 and is in close contact with the outer circumferential surface of the marine structure 150 when the marine structure 150 is inserted into the U-shaped catamaran bow portion 210. Unit 330.

As shown in FIGS. 2 and 3, the first fixing unit 310 is installed on the inner side of the bow portion 210 of the hull 200, that is, the bow portion 210 in which the catamaran U-shaped groove portion 215 is formed. A first gap adjusting part 313 installed on the first frame part 311 and the bow portion 210 of the hull 200 to adjust a gap between the first frame part 311 and an outer circumferential surface of the offshore structure 150. And a shock absorbing member 315 provided on a surface in close contact with the marine structure 150 of the first frame portion 311.

The first frame part 311 is in close contact with the marine structure 150 when the marine structure 150 is inserted into the catamaran linear bow portion 210 and serves to fix the hull 200 to the marine structure 150. The first frame part 311 reciprocates in the width direction of the hull 200 from the inner surface of the bow portion 210, is in close contact with the outer peripheral surface of the offshore structure 150 to fix the hull 200 to the offshore structure 150 do.

In addition, a plurality of first frame parts 311 may be provided to face the inner surface of the bow portion 210 around the longitudinal direction of the hull 200. The plurality of first frame parts 311 may be in close contact with the outer circumferential surface of the offshore structure 150 in both directions to stably fix the hull 200 to the offshore structure 150.

On the other hand, the surface in close contact with the marine structure 150 of the first frame portion 311 may be formed to correspond to the cross-sectional shape of the marine structure 150. For example, when the marine structure 150 has a circular columnar shape, the surface closely contacted with the marine structure 150 of the first frame part 311 may be formed to have a curved surface corresponding to the circular shape of the marine structure 150. Can be.

The first spacing adjuster 313 serves to reciprocate the first frame 311 to be in close contact with the offshore structure 150. As shown in FIG. 3, one end of the first gap adjusting part 313 is fixed to the inner side of the bow portion 210 and the other end is fixed to the first frame part 311.

Here, the first spacing adjusting unit 313 may be configured as a hydraulic cylinder which is installed in the bow portion 210 and the first frame portion 311 of the hull 200 to extend and contract, but is not limited thereto. Any configuration can be used as long as the configuration 311 is reciprocated.

Referring to the operation of the first gap control unit 313, the hydraulic cylinder constituting the first gap control unit 313 is contracted before the marine structure 150 is inserted into the catamaran linear bow portion 210, the first frame portion 311 is in close contact with the inner surface of the bow portion (210). This prevents the interference by the first frame portion 311 in the process of inserting the marine structure 150 into the bow portion 210 of the hull 200 and at the same time the marine structure 150 is the first frame portion 311. This is to prevent damage to the offshore structure 150 and the first frame portion 311 due to the collision.

In addition, when the marine structure 150 is inserted into the catamaran linear bow portion 210, the hydraulic cylinder is extended, and the first frame part 311 is pressed against the outer circumferential surface of the marine structure 150 so that the hull 200 is compressed. It is fixed to the marine structure 150.

The buffer member 315 prevents external damage to the marine structure 150 during the pressing process when the first frame part 311 is pressed against the outer circumferential surface of the marine structure 150 and the first frame part 311. ) And the marine structure 150 serves to absorb the impact force due to the collision generated in the process of being in close contact.

The shock absorbing member 315 may be formed of a material having an elastic force such as rubber, and may be installed along a surface in close contact with the outer circumferential surface of the marine structure 150 of the first frame part 311.

When a plurality of first frame portions 311 are provided to face the inner surface of the bow portion 210, the shock absorbing member 315 is in close contact with the outer circumferential surface of the marine structure 150 of the plurality of first frame portions 311. Install it.

4 and 5, the second fixing unit 330 is coupled to the lifting unit 331 and the lifting unit 331 provided on the deck 250 of the hull 200 to provide a marine structure. The second frame portion 333 in close contact with the outer circumferential surface of the 150 and the deck 250 of the hull 200 are provided, and the lifting portion 331 is moved in the width direction of the hull 200 so that the second frame portion ( 333 and a second gap adjusting unit 337 for adjusting a gap between the outer peripheral surface of the marine structure 150.

The elevating part 331 is provided on the deck 250 of the hull 200 but is elevated in the height direction to raise and lower the second frame part 333 to be described later, and a second close contact with the outer circumferential surface of the marine structure 150. The position of the frame unit 333 is determined. The lifting unit 331 may be provided in plural in the width direction of the hull 200.

The lifting unit 331 may be configured as a hydraulic cylinder which is installed on the deck 250 of the hull 200 and extends and contracts in the height direction, but is not limited thereto. The lifting unit 331 may lift the second frame part 333 in the height direction. Any configuration can be used.

In addition, when the marine structure 150 is inserted into the catamaran linear bow portion 210, the second frame part 333 is in close contact with the marine structure 150 to reconstruct the hull 200 together with the first frame part 311. It serves to stably secure the structure 150. That is, the hull 200 may be stably fixed to the offshore structure 150 by fixing the offshore structure 150 to the first frame part 311 and the second frame part 333 at two points at a vertical interval. .

When a plurality of lifting portions 331 are installed in the width direction of the hull 200, the second frame portion 333 is disposed on both sides of the offshore structure 150 to closely contact the outer circumferential surface of the offshore structure 150 in both directions. The 200 can be stably fixed to the offshore structure 150.

As shown in FIG. 5, the second frame part 333 is marined to prevent the marine structure 150 from escaping in a direction opposite to the direction inserted into the bow portion 210 of the hull 200 according to the sea condition. Both sides of the structure 150 are in close contact.

In addition, the second gap adjusting unit 337 may reciprocate the plurality of lifting units 331 installed in the width direction of the hull 200 in the width direction of the hull 200 so as to allow the second frame part 333. Adjust the gap between the outer peripheral surface of the offshore structure 150.

In this case, the second gap adjusting unit 337 may be configured as a hydraulic cylinder for reciprocating the plurality of lifting units 331 in the width direction of the hull 200, and also a guide rail at the lower part of the lifting unit 331. (Not shown) may be configured to reciprocate the plurality of lifting portions 331 in the width direction of the hull 200.

Referring to the operation of the second spacing control unit 337, before the marine structure 150 is inserted into the catamaran linear bow section 210, using the second spacing control unit 337 between the plurality of lifting units 331 The gap is increased to prevent the marine structure 150 from hitting the second frame part 333 in the process of being inserted into the bow portion 210.

And, when the maritime structure 150 is inserted into the bow portion 210 and the first frame portion 311 of the first fixing unit 310 is in close contact with the outer peripheral surface of the maritime structure 150, the second interval adjusting portion The second frame part 333 is brought into close contact with the outer circumferential surface of the marine structure 150 while reducing the distance between the plurality of lifting parts 331 by operating 337.

As described above, when the marine wind power generator 100 is to be installed and repaired, the sea condition is suddenly reduced by using the eyepiece 300 composed of the first fixing unit 310 and the second fixing unit 330. Even if it changes easily, the hull 200 can be docked to the offshore structure 150 accurately, quickly and stably. Therefore, it is possible to prevent damage to the marine structure 150 and the ship and damage to the life that may occur in the process of docking the hull 200 to the marine structure 150.

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. Accordingly, such modifications or variations are intended to fall within the scope of the appended claims.

100: offshore wind power generator 110: blade
120: rotor 130: drive shaft
140: wind turbine 150: offshore structure
200: hull 210: bow
230: stern 250: deck
300: eyepiece 310: first fixing unit
311: first frame portion 313: first gap adjusting portion
315: buffer member 330: second fixing unit
331: lifting portion 333: second frame portion
337: second gap controller 400: crane

Claims (8)

delete delete A hull having a U-shaped catamaran linear bow portion so that an offshore structure equipped with an offshore wind turbine is inserted; And
It is provided in the bow portion and includes an eyepiece for fixing the hull to the marine structure,
The eyepiece is,
When the marine structure is inserted into the bow portion of the hull includes a first fixing unit for close contact with the outer peripheral surface of the marine structure,
The first fixing unit includes:
A first frame part which closely contacts the outer circumferential surface of the marine structure in both directions; And
Offshore structure repair ship comprising a first gap adjusting portion for adjusting the distance between the first frame portion and the outer peripheral surface of the offshore structure. The method of claim 3,
The first fixing unit, marine structure repair ship further comprises a buffer member provided on the surface in close contact with the marine structure of the first frame portion. A hull having a U-shaped catamaran linear bow portion so that an offshore structure equipped with an offshore wind turbine is inserted; And
It is provided in the bow portion and includes an eyepiece for fixing the hull to the marine structure,
The eyepiece is,
A first fixing unit which comes into close contact with an outer circumferential surface of the marine structure when the marine structure is inserted into the bow portion of the hull; And
A marine structure repair ship further installed above the first fixed unit, and further comprising a second fixing unit to closely contact the outer circumferential surface of the marine structure when the marine structure is inserted into the bow portion of the hull. The method of claim 5,
The second fixing unit includes:
A second frame part which closely contacts the outer circumferential surface of the marine structure in both directions; And
Offshore structure repair ship comprising a second gap adjusting portion for adjusting the distance between the second frame portion and the outer peripheral surface of the offshore structure. The method according to claim 6,
The second fixing unit includes:
A ship for repairing offshore structures provided between the second frame portion and the second gap adjusting portion, further including an elevating portion for elevating the second frame portion up and down. The method according to claim 3 or 5,
The bow portion for offshore structure repair vessels are further installed for loading and unloading cargo.

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