KR101784939B1

KR101784939B1 - Ship

Info

Publication number: KR101784939B1
Application number: KR1020150152259A
Authority: KR
Inventors: 서성우
Original assignee: 삼성중공업 주식회사
Priority date: 2015-10-30
Filing date: 2015-10-30
Publication date: 2017-10-12
Also published as: KR20170050558A

Abstract

A ship is provided according to an embodiment of the present invention.
A ship according to an embodiment of the present invention includes a hull, a ballast water tank formed inside the hull and accommodating the ballast water or discharging the ballast water to the outside to adjust the balance of the hull, and at least a portion of the ballast water tank, And a balance maintaining portion projecting downwardly from the bottom of the ship and supported on the sea floor.

Description

Ship {SHIP}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ship, and more particularly, to a ship capable of maintaining a balance between a port state and a star state of a hull so that lateral load-out is easy.

In general, high-heft offshore plant structures are built in the construction site, lifted by a crane or the like, and loaded onto a shipping vessel at the construction site. However, if lifting is not possible due to the capacity limit of the crane, a skidding load-out is performed in which the load is slid and seated on a transportation vessel.

On the other hand, when performing skidding load-out in the width direction of the hull, it is necessary to control the amount of ballast water flowing into or out of the transportation vessel by each load-out step so that the transportation vessel is prevented from tilting by the load. In this case, the moment due to the load and the opposite direction moment due to the inflow or outflow of the ballast water must be balanced with each other. In the case of the widthwise load-out, the length of the moment arm is shortened due to the narrow line width, Since it is sensitive to hydration, accurate calculations are required.

If the error of the calculated amount of ballast water is large, the height difference between the quay wall and the shipping vessel may occur and load-out may be interrupted. Especially, if the water depth is shallow, the shipping vessel can get stuck on the sea floor, and if the water depth is deep, there is a risk of overturning, which can cause great property and personal injury.

Korean Patent Publication No. 10-2007-0045642 (2007. 05. 02.)

SUMMARY OF THE INVENTION It is an object of the present invention to provide a ship capable of maintaining a balance between a port and a starboard of a ship, thereby facilitating lateral load-out.

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

According to an aspect of the present invention, there is provided a ship comprising: a hull; a ballast tank formed in the hull and accommodating or discharging the ballast water to adjust balance of the hull, And a balance maintaining portion which is inserted into the hull and extends downward and protrudes below the line bottom and is supported on the sea floor.

Wherein the balance maintaining portion includes a link portion that is connected in series and includes a pair of unit links each of which is composed of two links in which intersecting points are rotatably coupled to each other so as to be able to expand and contract in the longitudinal direction, And a support plate supported on the surface.

The balance maintaining unit may further include a driving unit that adjusts the length of the link unit by moving at least one of the two links to adjust an interval between the two links.

Wherein the balance holding portion includes a first connecting block connecting the hull and the link portion to each other and having a first groove slidably guiding one end of the two links, And a second block having a second groove for guiding the other end of the two links in a slidable manner.

The support plate may have a curved surface shape with a central portion protruding toward the seabed surface.

The balance maintaining portion may be positioned at the left side of the ship and the lower side of the starboard, respectively.

According to the present invention, there is provided a balance maintaining portion extending from the hull and supported on the sea floor, so that the balance between the port and starboard of the hull can be maintained at all times. Therefore, lateral load-out can be easily performed even when the error of the calculated amount of ballast water is large, and accidents such as the boat being stuck on the sea floor or being overturned can be prevented.

Further, by applying the balancing portion of the folded structure, it can be driven more quickly.

1 is a view showing a ship according to an embodiment of the present invention.
Fig. 2 is a cross-sectional view of the ship of Fig. 1 cut in the longitudinal direction. Fig.
3 is an enlarged view of a support plate.
4 is a view showing a state where a conventional ship performs a lateral load-out.
5 is a view showing a ship performing a lateral load-out according to the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention and the manner of achieving them will become apparent with reference to the embodiments described in detail below with reference to the accompanying drawings. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. To fully disclose the scope of the invention to those skilled in the art, and the invention is only defined by the scope of the claims. Like reference numerals refer to like elements throughout the specification.

Hereinafter, a ship according to an embodiment of the present invention will be described in detail with reference to Figs. 1 to 5. Fig.

1 is a view showing a ship according to an embodiment of the present invention.

The ship 1 according to the embodiment of the present invention is an ordinary ship which carries the offshore plant structure A manufactured in the manufacturing site through a skid load out and transports it to a destination such as the sea, , Barges. Here, the skidding load-out means that the position of the ship 1 is adjusted so that the skid installed on the seablock J and the skid installed on the ship 1 are positioned on the same plane, The ship 1 according to the present invention can perform skidding load-out along the width direction of the ship 1 (see x direction in FIG. 1).

The ship 1 is provided with a balancing portion 30 extending from the ship 10 and supported on the seabed surface S so as to maintain balance between the port 10a and the starboard 10b of the ship 10 . Therefore, it is possible to easily perform the lateral load-out even if the error of the calculated ballast water amount is large, and to prevent the accident such as the boat 1 being stuck on the seabed surface S or overturning. Further, by employing the balancing portion 30 of the folded structure, there is a characteristic that it can be driven more quickly.

Hereinafter, the ship 1 will be described in detail with reference to Figs. 2 and 3. Fig.

Fig. 2 is a cross-sectional view of the ship shown in Fig. 1 cut in a longitudinal direction, and Fig. 3 is an enlarged view of a support plate.

A ship 1 according to the present invention includes a hull 10, a ballast tank 20, and a balancing portion 30.

The hull 10 forms the main body of the vessel 1 and the depressions 11 can be formed in the lower portion of the starboard 10b in the port 10a. The depressed portion 11 may be formed by being inserted into a predetermined length from the line bottom surface 12 toward the deck 13 as a space into which a balance holding portion 30 to be described later is inserted. At this time, the indent portion 11 does not penetrate the deck 13, but is communicated with the outside only through the bottom bottom 12. Although the depressions 11 are shown vertically extending from the line bottom surface 12 toward the deck 13 in the drawing, the present invention is not limited to this, and the depressions 11 may be formed in accordance with the structure of the hull 10 or the balance- And can be variously modified. At least one ballast tank 20 may be formed inside the hull 10.

The ballast water tank 20 accommodates ballast water or discharges the ballast water to the outside to control the balance and proper draft of the ship 10. The ballast tank 20 is connected to a control unit (not shown) electrically or mechanically, The amount of water can be adjusted. The ballast tank 20 is not limited to a single ballast tank 20 in the center of the hull 10 but may be provided in the port 10a and the starboard 10b So that the left and right balances of the hull 10 can be aligned. At this time, the amount of the ballast water accommodated in the ballast water tank 20 disposed in the port 10a and the ballast water tank 20 disposed in the starboard 10b may be different from each other.

The ballast water tank 20 is provided with at least one pump unit (not shown) therein so that the ballast water can flow smoothly and can be opened and closed by at least one door part (not shown). The door is driven by the control unit and can control the flow of the ballast water by simultaneously opening or closing through holes (not shown) passing through the hull 10 and the ballast water tank 20, respectively.

As described above, the indent portion 11 is formed in the port 10a and the starboard 10b, respectively, and the balance holding portion 30 can be inserted into each of the indent portions 11. That is, the balance maintaining portion 30 can be positioned respectively below the port 10a and the starboard 10b of the hull 10, respectively.

The balance maintaining portion 30 is extended downward and protrudes to the lower portion of the line bottom surface 12 and is supported on the seabed surface S. At least a part of the balance holding portion 30 can be inserted into the indent portion 11 of the hull 10. In other words, the balance maintaining portion 30 is inserted into the indent portion 11 and extends in the longitudinal direction (see the y direction in FIG. 1) of the depressed portion 11 so that one end portion is supported on the seabed surface S, The recess 11 may be shortened in the longitudinal direction of the body 11 so as to be entirely or partially inserted into the recess 11. [ For example, when the ship 1 is performing a skidding load-out or anchoring, the balancing portion 30 can be extended and supported on the seabed surface S, whereby the portage 10a and the starboard 10b ) Can be maintained. Therefore, it is possible to easily perform the lateral load-out even if the error between the amount of the ballast water flowed and the calculated value is large, and to prevent the accident such as the hull 10 being stuck on the seabed surface S or overturning have. Conversely, when the ship 1 is in operation, the balancing portion 30 can be shortened and accommodated in the indent 11, whereby the resistance of the hull 10 due to seawater is minimized, . In addition, structural deformation and breakage of the balance maintaining portion 30 due to external force such as seawater can be prevented, and the life of the device can be improved.

The balance maintaining portion 30 accommodated in the indentation 11 of the port 10a and the balance holding portion 30 accommodated in the indentation 11 of the starboard 10b can be expanded and contracted independently of each other, Can be stably supported even on the seabed surface (S) forming the sea surface (S).

The balance maintaining portion 30 includes a link portion 31 and a support plate 32. [

The link portions 31 may be connected in series to each other and may be expanded or contracted in the longitudinal direction, the link portions 31 being formed of two links 311 that are intersected with each other and the intersections are rotatably coupled. In other words, the link unit 31 has a structure in which a plurality of unit links each consisting of two links 311 are formed and connected in series, and each unit link rotates around an intersection and is moved toward or away from each other.

Each of the links 311 is formed of a bar-shaped member having a certain length and thickness, and the two links 311 and the unit links can be joined to each other with a hinge. In other words, the two links 311 are hinged at the intersections to form an 'X' shape, and can rotate around the intersection to vary the length of the link portion 31 in the vertical direction. For example, if the two links 311 are rotated and the ends are disposed close to each other, the length of the link portion 31 in the vertical direction can be increased. Conversely, if the two links 311 are rotated and the end portions are disposed apart from each other, the vertical length of the link portion 31 can be reduced.

The support plate 32 is rotatably connected to the lower portion of the link portion 31 and is supported by the seabed surface S so that the center portion of the surface which is in close contact with the seabed surface S is a curved surface Or the like. For example, the support plate 32 may be formed in a hemispherical shape so that a spherical surface may be in close contact with the seabed surface S. The area of contact with the seabed surface S is increased by the engagement of the support plate 32 with the link portion 31 composed of the rod-shaped link 311, so that the balance holding portion 30 can stably contact the seabed surface S, So that even if an external force acts, balance between the port 10a and the starboard 10b can be easily maintained. In addition, the vertical loads of the ship 10, the loaded offshore plant structure A, etc. can be dispersed and structurally stabilized.

In addition, since the central portion of the support plate 32 is formed in a curved shape protruding toward the sea floor S, the protruded central portion is stuck to the seabed surface S and the balance holding portion 30 is fixed at a fixed position And can be effectively adhered to the seabed surface S even in the presence of obstacles such as rocks. Particularly, as shown in Fig. 3 (a), as shown in Fig. 3 (b), not only the bottom surface S having no inclination or low inclination, but also the sea bottom surface S having a constant inclination, (30) can be stably supported. When the balance holding portion 30 is supported on the underside surface S having an inclination, the support plate 32 can be rotated about the hinge axis and brought into close contact with the seabed surface S, It can be fixed at a fixed position without slipping along the inclined surface.

Both ends of the link portion 31 disposed at the outermost portion may be connected to the first connection block 34 and the second connection block 35, respectively.

The first connection block 34 supports one end of the link portion 31 and can connect one side of the hull 10 and the link portion 31 to each other. In other words, the first connection block 34 is inserted into the indentation 11 so that the upper surface and the side surface are fixedly coupled to the hull 10, and the lower surface contacts the link portion 31. The first connection block 34 is formed with a pair of first grooves 34a at a lower portion thereof facing the line bottom surface 12 and a pair of first grooves 34a are spaced apart from each other by a predetermined distance, As shown in Fig. Each of the first grooves 34a can guide one end of the two links 311 in a slidable manner.

The link portion 31 disposed at the outermost portion is formed with a first projection 311a protruding in the horizontal direction at one end of the link 311. The first projection 311a is formed in each first groove 34a And can be slidably coupled. That is, when the first protrusion 311a slides in the width direction of the indented portion 11 along the inner surface of the first groove 34a, the two links 311 rotate about the intersection, Can be varied in the vertical direction. For example, if each of the first projections 311a moves along the first groove 34a and is arranged close to each other, the length of the link portion 31 in the vertical direction is increased. On the contrary, if the first projections 311a are arranged apart from each other, The length of the link portion 31 in the vertical direction can be reduced.

The second connection block 35 supports the other end of the link portion 31 and can connect the other side of the link portion 31 and the support plate 32 with each other. In other words, the support plate 32 is rotatably coupled to the second connection block 35 and connected to the link portion 31. [ The second connection block 35 is formed with a pair of second grooves 35a at an upper portion thereof facing the line bottom surface 12 and a pair of second grooves 35a are spaced apart from each other by a predetermined distance, As shown in Fig. Each of the second grooves 35a can guide the other end of the two links 311 so as to be slidably movable. At this time, the first grooves 34a and the second grooves 35a may extend in the same length and be disposed facing each other.

The link portion 31 disposed at the outermost portion is formed with a second projection 311b protruding in the horizontal direction at the other end portion of the link 311 and the second projection 311b is formed in each second groove 35a And can be slidably coupled. The second projection 311b can slide in the width direction of the indented portion 11 along the inner surface of the second groove 35a and move in the same direction as the first projection 311a.

At least one of the two links 311 may be provided with a driving force from the driving unit 33. The driving part 33 adjusts the length of the link part 31 so that the distance between the two links 311 can be adjusted by moving at least one of the two links 311. Specifically, the driving unit 33 may be electrically or mechanically connected to at least one of the first protrusions 311a and the second protrusions 311b to provide a driving force, and the first protrusions 311a or the second protrusions 311b Can be slid in the width direction of the indented portion 11 from the inside of the first groove 34a or the second groove 35a, respectively.

The balance maintaining portion 30 is composed of at least one link portion 31, a support plate 32, a first connecting block 34, a second connecting block 35, and a driving portion 33, So that it can be extended or shortened in the longitudinal direction of the depressed portion 11 quickly, so that it is possible to easily cope with sudden crisis situations.

Hereinafter, with reference to Figs. 4 and 5, the operation process of the ship 1 will be described in more detail.

FIG. 4 is a view showing a conventional ship performing a lateral load-out, and FIG. 5 is a view showing a ship performing a lateral load-out according to the present invention.

The ship 1 according to the embodiment of the present invention is provided with the balance holding portion 30 extending from the hull 10 and supported on the seabed surface S so that the port 10a of the hull 10 and the starboard 10b ) Can always be maintained. Therefore, lateral load-out can be easily performed even if the error of the calculated amount of ballast water is large, and the risk that the ship 1 is stuck on the sea floor or rolled over can be prevented.

Referring to FIG. 4, in a conventional ship, the balance of the port 10a and the starboard 10b is adjusted by adjusting the amount of the ballast water flowing into the ballast water tank 20 during the lateral load-out do. In other words, the conventional vessel is not sensitive to the amount of the ballast water flowing in and out of the ballast tank 20 because there is no separate device for maintaining balance between the port 10a and the starboard 10b, Calculation of the amount must be done correctly.

If the error between the amount of the ballast water flowing out and the calculated value is large, a height difference may occur between the seawall J and the hull 10 and the load-out may be interrupted. (S) and can be overturned.

5, the ship 1 according to the present invention controls the amount of ballast water flowing into the ballast water tank 20 at the time of lateral load-out, thereby controlling the amount of ballast water flowing into the ballast water tank 20, And the balance holding portions 30 provided on the port 10a and the starboard 10b are extended and supported on the seabed surface S while maintaining balance. Each of the balancing portions 30 is formed of a folded-iron structure and can be independently stretched, so that it can be stably supported on the sea floor S regardless of the slope of the sea floor S.

Since the ship 1 according to the present invention is provided with the balance holding portion 30 capable of maintaining balance between the port 10a and the starboard 10b in addition to the ballast water tank 20, It is possible to easily perform lateral load-out of the offshore plant structure A and the like and to prevent an accident that the hull 10 is stuck on the seabed surface S or overturned.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, You will understand. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive.

1: Ships 10: Hull
10a: port 10b: starboard
11: indentation part 12: line bottom
13: deck 20: ballast tank
30: Balancing part 31: Link part
311: Link 311a: First projection
312b: second projection 32:
33: driving part 34: first connecting block
34a: first groove 35: second connecting block
35a: second home
A: Offshore plant structure J: Seal
S: Sea bottom surface

Claims

hull;
A ballast tank formed inside the hull and accommodating or discharging the ballast water to adjust the balance and the draft of the hull so as to match the upper height of the hull with the adjacent structure; And
At least a portion of which is inserted into the hull and is extended below the hull to be supported on the bottom of the hull so as to maintain the top height,
The balance-
A plurality of unit links formed by two links intersecting each other and having intersections rotatably coupled to each other,
And a support plate rotatably connected to a lower portion of the link portion and supported by the sea floor.

delete

The apparatus according to claim 1,
Further comprising a driver for moving at least one of the two links to adjust the distance between the two links to adjust the length of the link.

The apparatus according to claim 1,
A first connecting block connecting the hull and the link portion to each other and having a first groove slidably guiding one end of the two links;
And a second block connecting the link portion and the support plate to each other and having a second groove slidably guiding the other end of the two links.

The ship according to claim 1, wherein the support plate has a curved shape with a central portion protruding toward the sea floor.

The ship according to claim 1, wherein the balance maintaining portion is located at the port side of the hull and the lower portion of the starboard side respectively.