KR20110074433A - A crane vessel with a flotage and a stabilization method thereof - Google Patents

Abstract

PURPOSE: A crane vessel with a float for buoyancy and a stabilization method thereof are provided to stably and rapidly perform loading and unloading works by controlling the relative motion of the crane vessel and a container vessel. CONSTITUTION: A crane vessel with a float for buoyancy comprises a platform(11), a crane, a float(100), and an auxiliary float(104). The platform provides a space for loading freights. The crane conveys the freights from the platform to the other vessel. The float and the auxiliary float are arranged under the platform. The float controls buoyancy applied from seawater. The auxiliary float accepts an extensible member(106).

Description

Crane ship with buoyancy float and stabilization method {A Crane Vessel With A Flotage And A Stabilization Method Thereof}

The present invention relates to a crane ship and a stabilization method thereof used in a mobile harbor system, and more particularly, to a crane ship having a buoyancy floating body that can stabilize the crane ship in combination with a container ship and a stabilization method thereof. .

Maritime transportation using ships as a means of moving goods remotely takes up a large part of international trade because it uses less energy and lowers transportation costs compared to other means of transportation.

In recent years, in marine transportation such as container ships, large-scale ships are used to improve the efficiency of transportation, which is intended to secure the economics of transportation by increasing the transportation volume of the vessel. Accordingly, more and more ports are required to have mooring and unloading facilities for docking large vessels.

However, harbors that can dock large container ships are limited at home and abroad, and the construction of such ports requires a lot of expenses due to dredging to maintain the necessary port depth, as well as a large place. In addition, due to the construction of a large port has a lot of influence on the surrounding environment, such as causing a traffic jam or destruction of the coastal environment, there are many restrictions on the construction of a large port.

Accordingly, the invention relates to a mobile port (mobile harbor) capable of loading and unloading cargo without anchoring a large vessel to the inner wall of the port and anchored at sea off the land, and a method for transferring the cargo using the patent ( Registration number 10-0895604).

Figure 1 shows a schematic view of the mobile port shown in the patent, the mobile port 10 can be carried out using the crane system 20, the loading port 10 (a) is a mobile port (10) 1 and (b) show the unloading between the mobile harbor 10 and the pier 40.

In particular, unloading cargo between the mobile port 10 and the container ship 30 floating at sea is more difficult to carry out its work than to unload cargo between the mobile harbor 10 and the pier 40. This follows. When loading and unloading cargo with a stationary onshore crane, it is important to ensure the stability of unloading operations in response to the shaking of the cargo hanging on the crane and the movement of the container ship floating on the sea. When the cargo handling operation is performed between the mobile port 10 and the container ship 30 floating in the deep sea, the mobile harbor 10 and the container ship 30 due to wind, blue, or algae generated at sea. Since relative movement occurs between, it is more difficult to secure the stability of the unloading operation.

However, when the stabilization of the ship for cargo loading / loading work takes a lot of time means that the waiting time of the container ship is long, which will lead to an increase in costs. As a result, securing the stability of loading and unloading operations is an important issue not only in terms of safety but also directly related to the economic performance of mobile ports.

The present invention has been made in consideration of the above problems, the present invention when unloading / loading the cargo between the crane ship and the container ship, by suppressing the relative movement occurring between the crane ship and the container ship to improve the stability of the loading / loading operation It aims at providing the crane ship which can be ensured, and its stabilization method.

The present invention provides a crane ship having a buoyancy float, the platform for providing a space for loading the cargo, the crane for transporting the cargo between the other vessel and the platform, and adjusts the buoyancy acting from sea water A buoyant floatable body and an auxiliary floater receiving an elongate extendable member in a horizontal direction, wherein the buoyant floated body and the auxiliary floated body have a vertical distance control with respect to the platform. It provides a crane ship having a buoyancy float, characterized in that provided to be possible.

In addition, in the crane ship according to the present invention, the extension member is characterized in that it can be extended from the auxiliary floating body to support the bottom surface of the other vessel.

Furthermore, in the crane ship according to the present invention, a plurality of openings formed to penetrate the platform in the vertical direction, accommodated in the plurality of openings and movable in the vertical direction, the buoyancy floating body and the auxiliary at the bottom It further comprises an auxiliary pillar to which the float is connected.

On the other hand, in the crane ship according to the invention, the buoyancy floating body is characterized in that to adjust the buoyancy acting from the seawater by injecting air or seawater therein.

Moreover, in this invention, in the crane ship stabilization method provided with the buoyancy float, the buoyancy float and auxiliary float which are provided under the platform of the said crane ship descend | fall in a vertical direction after the said boat ship and another ship contact | connect. The extension member accommodated in the auxiliary floating body extends in the horizontal direction below the bottom of the other ship, and the extension is made by raising the crane ship by adjusting the buoyancy force acting on the buoyancy floating body from seawater. It provides a method for stabilizing a crane ship characterized in that the member is in contact with the bottom surface of the other vessel.

Furthermore, in the stabilization method of the crane ship according to the present invention, the buoyancy control of the buoyancy floating body is characterized in that it is made by selectively injecting air or seawater therein.

On the other hand, in the stabilization method of the crane ship according to the present invention, the platform is formed with a plurality of openings penetrating in the vertical direction, the vertical movement of the buoyancy floating body and the auxiliary floating body, the buoyancy buoy at the bottom And an auxiliary column to which a fluid and the auxiliary floating body are connected are moved in the vertical direction while being accommodated in the plurality of openings.

In addition, in the stabilization method of the crane ship according to the present invention, when the buoyancy floating body and the auxiliary floating body descends in the vertical direction, at least the upper surface of the auxiliary floating body is lowered to a depth located below the bottom surface of the container ship. do.

According to the crane ship and its stabilization method according to the present invention, by unloading the cargo between them quickly and stably by suppressing the relative motion between the floating crane ship and the container ship using the buoyancy floating body provided in the crane ship Enable loading.

1a and 1b is a view showing a schematic view of the mobile port shown in the prior patent.
2 is a front view of a crane ship according to an embodiment of the present invention in a state in which cargo loading / loading operation is not performed.
3 is a front view of a crane ship according to an embodiment of the present invention in a state of carrying out the loading and unloading of cargo between the container ship.
4 to 8 are diagrams illustrating each step in the method for stabilizing a crane ship according to an embodiment of the present invention.

The present invention is capable of various modifications and various embodiments, and specific embodiments are illustrated and described in the drawings. However, this is not intended to limit the present invention to specific embodiments, it should be understood to include all transformations, equivalents, and substitutes included in the spirit and scope of the present invention. In the following description of the present invention, if it is determined that detailed descriptions of related well-known technologies or functions may obscure the gist of the present invention, the detailed description thereof will be omitted.

The terminology used herein is for the purpose of describing particular example embodiments only and is not intended to be limiting of the present invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. In this application, the terms "comprise" or "have" are intended to indicate that there is a feature, number, step, operation, component, part, or combination thereof described in the specification, and one or more other features. It is to be understood that the present invention does not exclude the possibility of the presence or the addition of numbers, steps, operations, components, components, or a combination thereof.

DETAILED DESCRIPTION Hereinafter, embodiments according to the present invention will be described in detail with reference to the accompanying drawings, and in the following description with reference to the accompanying drawings, the same or corresponding components will be given the same reference numerals and redundant description thereof will be omitted. do.

2 and 3 show a front view of a crane ship 10 having a buoyancy float in accordance with one embodiment of the present invention used as a mobile harbor system for use in a mobile harbor system. Here, FIG. 2 shows a state in which the crane ship 10 of the present invention does not perform a loading / loading operation of a cargo, for example, a sea in operation, and FIG. 3 shows a crane ship 10 of the present invention in a container. It shows how the cargo is unloaded / loaded between the line 30.

For example, the crane ship 10 according to an embodiment of the present invention may basically be in the form of a barge provided with a crane system 20. When using the barge-type crane ship 10 as described above there is an advantage in the stabilization of the crane ship 10 for unloading / loading work of the cargo is less shaking than other types of ships in the sea condition of the same conditions.

On the other hand, the crane ship 10 according to an embodiment of the present invention is a platform 11 for providing a space (S) on which the cargo (C) to be loaded or unloaded, and a plurality of one end is supported on the platform 11 The support system 13, the guide structure 15 connected to and supported at the other end of the support support 13, the crane system 20 is movably coupled to the guide structure 15 to transport the cargo (C) It includes. Here, the cargo C to be loaded or unloaded may be the cargo C to be loaded from the ship or the pier to the platform 11, or the cargo C to be unloaded from the platform 11 to the ship or the pier.

Meanwhile, the crane system 20 may basically use a boom and girder type, but uses a method of folding the boom and lowering the girder to ensure stability during operation of the crane ship 10. In the specific configuration, the crane system 20 is a main boom (1) is formed such that one side (50a) and the other side (50b) is coupled to the guide structure 15, the movable boom (15) 50) and a plurality of extension booms 60 that can be expanded or folded to extend along the longitudinal direction of the main boom 50, and move along these booms 50, 60 to And trolley 80 for carrying out the loading and unloading operations. As such, when the boom constituting the crane system 20 is formed in a multi-stage structure such that the boom can be unfolded or folded, when the extension booms 60 extend along the longitudinal direction of the main boom 50, the cargo C may be loaded in the same manner as a conventional crane. Unloading and loading) can be carried out, and when they are folded and folded on the main boom 50, the space occupied by the crane system 20 can be reduced to ensure stability during operation of the mobile port (10).

In addition, the crane system 20 equilibrates the platform 11 when the equilibrium is broken, such as the platform 11 tilting to one side according to the movement of each boom 50 and 60 and / or the transport of the cargo C. A counter weight 90 is provided to maintain the state. In this case, the counter weight 90 may be formed on the other side 50b of the main boom 50.

The crane system 20 applied to this embodiment is merely exemplary, and any type of crane can be used for the crane ship 10 according to the present invention as long as it can carry out loading / loading operations at sea.

The basic principle of the crane ship 10 having the buoyancy float according to the present invention is to suppress the relative movement between them by making the crane ship 10 and the container ship 30 unite. Specifically, the crane ship 10 by extending the auxiliary float 104 provided in the crane ship 10 and pushed under the container ship 30 so that the auxiliary float 104 supports the container ship 30. ) And the container ship 30 can be integrated. When the crane ship 10 and the container ship 30 are integrated in this way and the relative movement between them is suppressed, the crane system 20 provided in the crane ship 10 is a crane installed on the container ship 30. Similarly, the cargo can be unloaded / loaded stably.

Hereinafter, the undercarriage associated with the buoyancy float in the crane ship 10 according to the present invention will be described.

A plurality of buoyancy floats 100 are provided below the bottom of the platform 11, and the plurality of buoyancy floats 100 are connected to each other through a connection member 102. The buoyancy float 100 is configured to inject seawater or air into the interior as needed, it can receive buoyancy acting from seawater when air is injected therein. On the other hand, the platform 11 is formed to be concave so that the bottom surface corresponding to the upper surface of the buoyancy floating body 100 to accommodate a plurality of buoyancy floating body (100).

Under the buoyancy float 100, a wide plate-shaped auxiliary float 104 is provided. The auxiliary floater 104 houses an elongate member 106 therein, the elongated member 106 being configured to be housed in the elongated floater 104 or extend out thereof as necessary. do.

Meanwhile, a plurality of openings 12 penetrating up and down along the platform 11 are formed around the support beam 13, and auxiliary pillars 17 extending in the opening 12 direction are respectively formed therein. It is accepted. An upper guide 19 is formed at the upper end 17a of the auxiliary pillar 17 to connect the upper end 17a of each auxiliary pillar 17 to each other, and a buoyancy portion is provided at the lower end 17b of the auxiliary pillar 17. Fluid 100 and auxiliary float 104 are connected. The auxiliary column 17 moves up and down in the longitudinal direction along the opening 12 formed in the platform 11, whereby the position of the buoyancy float 100 and the auxiliary float 104 below the sea level, i.e., Function to control the depth of the.

Hereinafter, a method for stabilizing the crane ship 10 will be described sequentially as the preparation work for carrying out the cargo loading / loading operation between the crane ship 10 and the container ship 30 according to the present invention. .

First, as shown in FIG. 4, the crane ship 10 approaches toward the container ship 30. At this time, since the crane ship 10 does not perform a load / load operation of the cargo, each boom constituting the crane system 20 is folded to each other by reducing the space occupied by the crane system 20 crane ship 10 The stability required for the operation).

Next, referring to FIG. 5, in a state where the crane ship 10 approaches the container ship 30 sufficiently, the crane ship 10 is used by using an adsorption-type tangential device (not shown) provided in the crane ship 10. And the container ship 10 meet. After the tangent of the crane ship 10 and the container ship 30 is completed, the buoyancy float 100 and the auxiliary float 104 provided below the platform 11 of the crane ship 10 descend to an appropriate depth. do. At this time, the descending of the buoyancy float 100 and the auxiliary float 104 is made by moving the auxiliary column 17 in the vertical direction along the opening 12 formed in the platform 11. On the other hand, the buoyancy float 100 and the auxiliary float 104 should be lowered to a depth at least the upper surface of the auxiliary float 104 is located below the bottom surface of the container ship (30).

When the lowering of the buoyancy float 100 and the auxiliary float 104 is finished, the extension member 106 contained in the auxiliary float 104 exits from the auxiliary float 104 and the container ship ( 30) extends below the bottom (see FIG. 6). When the extension of the elongated member 106 is completed, air is injected into the buoyancy float 100. When air is injected into the buoyancy float 100, as shown in FIG. 7, the buoyancy float 100 rises under buoyancy acting from seawater. At this time, as the buoyancy float 100 rises, the auxiliary float 104 and the extension member 106 rise together, and the extension member 106 comes into contact with the bottom surface of the container ship 30. In addition, since the rise of the buoyancy float 100 will raise the entire crane ship 10, if the buoyancy acting on the buoyancy float 100 is large enough to raise the platform 11 above the sea level.

Finally, with the extension member 106 supporting the container ship 30 from below and the platform 11 raised above the sea level, as shown in FIG. 8, the respective booms constituting the crane system 20 By unfolding, the crane ship 10 performs the unloading and / or loading operation of the cargo (C). In this case, since the buoyant floater 100, the auxiliary floater 104, and the extension member 106 support the crane ship 10 and the container ship 30 integrally, the crane ship 10 and the container ship Relative movement between the 30 is suppressed, the crane system 20 provided in the crane ship 10 can perform the loading and unloading work of cargo stably like a crane installed on the container ship 30. .

Above described specific embodiments of a crane ship having a buoyancy float according to an embodiment of the present invention and a crane ship stabilization method using the same, but this is only an example, the present invention is not limited thereto, and in the present specification It is to be construed as having the broadest scope consistent with the disclosed basic idea. Those skilled in the art can change the material, size, etc. of each component according to the application field, it is possible to implement a pattern of a timeless shape by combining / replacing the disclosed embodiments, this also does not depart from the scope of the present invention. In addition, those skilled in the art can easily change or modify the disclosed embodiments based on the present specification, it is apparent that such changes or modifications are included in the scope of the present invention.

10: crane ship (mobile port) 11: platform
12: opening 13: support beam
15: guide structure 17: auxiliary pillar
19: Top guide 20: Crane system
30: container ship 40: pier
50: main 60: extension boom
80: Troll 90: Counterweight
100: buoyant float 102: connecting member
104: auxiliary float 106: extension member
C: Cargo S: Space

Claims (8)

In a crane ship provided with a buoyant float,
A platform that provides space for cargo to be loaded,
A crane for transferring the cargo between another vessel and the platform,
Buoyant floats that can adjust the buoyancy acting from sea water,
An auxiliary floater receiving an elongate member that is extensible in the horizontal direction,
The buoyancy floating body and the auxiliary floating body, characterized in that provided below the platform, to adjust the vertical distance to the platform
Crane ship provided with a float for buoyancy.
The method of claim 1,
The extension member may extend from the auxiliary float to support the bottom surface of the other vessel
Crane ship provided with a float for buoyancy.
The method according to claim 1 or 2,
A plurality of openings formed to penetrate the platform in a vertical direction,
It is accommodated in the plurality of openings and movable in the vertical direction, characterized in that it further comprises an auxiliary column connected to the buoyancy floating body and the auxiliary floating body at its lower end;
Crane ship provided with a float for buoyancy.
The method according to claim 1 or 2,
The buoyancy float is characterized in that for adjusting the buoyancy acting from the seawater by injecting air or seawater therein
Crane ship provided with a float for buoyancy.
In the stabilization method of a crane ship provided with a buoyancy float,
After the crane ship and the other ship tangential, the buoyancy float and the auxiliary float floating under the platform of the crane ship descends in the vertical direction,
The extension member accommodated in the auxiliary float is extended in the horizontal direction below the bottom of the other ship,
It is characterized in that the extension member is in contact with the bottom surface of the other vessel by raising the crane ship by adjusting the buoyancy acting on the buoyancy floating body from sea water.
How to stabilize crane ships.
The method of claim 5, wherein
Buoyancy control of the buoyancy floating body is characterized in that by selectively injecting air or seawater therein
How to stabilize crane ships.
The method according to claim 5 or 6,
The platform is formed with a plurality of openings penetrating in the vertical direction,
The vertical movement of the buoyancy floating body and the auxiliary floating body is made by moving the auxiliary column connected to the buoyancy floating body and the auxiliary floating body at the lower end in the up-down direction while being accommodated in the plurality of openings. doing
How to stabilize crane ships.
The method of claim 7, wherein
When the buoyancy floating body and the auxiliary floating body descends in the vertical direction, at least the upper surface of the auxiliary floating body is lowered to a depth located below the bottom surface of the container ship
How to stabilize crane ships.

Images