KR20150026621A - Temporary Ballasting System for Semi-Rig Ship - Google Patents

Abstract

The present invention relates to a temporary ballast device for a semi-rig ship, which can regulate the state of a heel or a trim of a hull in a method of simply regulating a liquid storage volume in a moving tank or of moving the moving tank along a guide rail without any inconvenience that a worker should supply or drain water to or from a ballast tank in the hull using a portable pump, by temporarily installing the guide rail on the hull in a semi-rig ship and mounting the moving tank for storing or discharging a liquid in order to move along the guide rail, can rapidly and conveniently regulate equilibrium state of the hull in a process of mounting component blocks during quay wall construction, and can shorten the entire quay wall construction period.

Description

BACKGROUND OF THE INVENTION Field of the Invention [0001] The present invention relates to a semi-

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a semi- More specifically, a guide rail is installed on a hull of a semi-rigid line, and a moving tank capable of storing and discharging liquid is movably mounted along a guide rail, so that a worker can use a portable pump to feed / It is possible to control the heel and trim condition of the hull by simply adjusting the liquid storage amount of the moving tank or moving the moving tank along the guide rail without inconvenience to work, The present invention relates to a semi-rigid-line pneumatic ballast device capable of adjusting the equilibrium state of the hull more quickly and conveniently and shortening the entire drywall drying period of the aruler.

For ships equipped with various drilling equipment to drill oil and gas existing in the basement of the seabed, rig ships for the subsea drilling used in the conventional submarine drilling, floating oil production storage and unloading facilities (FPSO, Floating Production Storage and Offloading) and drillships that have been recently developed and used for underwater drilling.

A rig ship or FPSO dedicated to seafloor drilling can only be sailed by other tugboats and drilling underwater at anchor at one point on the sea using a mooring system. And is built in the same form as a general ship so that it can navigate by its own power.

Semi-rig lines of the league lines dedicated to seafloor drilling consist of pontoons arranged to sink to a certain depth from the sea surface, columns arranged in the vertical direction from the pontoons, and horizontal decks formed on the top of the columns , A deck for underwater drilling is installed on the deck, and a door pool is formed on the vertical bottom of the derrick.

These semirig lines are dried on the land and then dried, and after the launch, the drying process is carried out by mounting the various components on the hull in blocks near the wall. In other words, the semi-rigging line is being finally dried through the quay wall drying process for mounting and finishing various structures in a state of being launched into the coast near the quay wall.

Due to the nature of the drying operation, trim and heel are generated on the hull depending on the position and weight of the loading block in the process of installing various blocks during the drying of the quay walls of the semi-rigid ship. The trim means that the hull vibrates up and down along the fore and aft direction, and the heel means that the hull vibrates up and down along the direction perpendicular to the trim, that is, the line width direction.

These vibrations, such as the trim and heel, are generally controlled through a ballast system on the hull and remain in equilibrium. During drywall operation, the ballast system is not mounted on the hull, It is impossible to perform the function of maintaining the equilibrium state of the hull through the ballast system.

Therefore, during the drying process of the quay wall of the semi-rigid line, the worker generally maintains the equilibrium state of the hull by using a portable pump to charge / discharge the ballast tank. This work requires a lot of time for main / drainage work, and it is very troublesome and difficult to work and it is also difficult to maintain accurate equilibrium state of the hull. Therefore, Is also occurring.

Korean Patent No. 10-0834289

SUMMARY OF THE INVENTION The present invention has been made to solve the problems of the prior arts, and it is an object of the present invention to provide a lifting and lowering apparatus for lifting and lowering a moving rail by mounting a guide rail on a hull of a semi- , The operator simply adjusts the liquid storage amount of the moving tanks or moves the moving tanks along the guide rails without inconvenience of using the portable pump to perform the main / drainage work in the ballast tanks of the hull, It is possible to control the equilibrium state of the hull more quickly and conveniently during the installation process of the part block during the quay wall drying operation, and to provide the semi-rigid line hull ballast device which can shorten the dry period of the quay wall .

The present invention relates to a hypothetical ballast apparatus for controlling the equilibrium state of a semi-rigid line in the process of drying a wall of a semi-league line, the apparatus comprising: a guide rail long in one direction so as to cross the hull; And a moving tank which is formed with an inlet and an outlet so as to allow liquid to flow in and out, and which moves linearly along the guide rail.

In this case, the hypothetical ballast apparatus may further include a liquid supply unit for supplying liquid to the moving tank through the inlet.

In addition, the liquid supply unit can supply seawater to the moving tank.

The liquid supply unit may further include a seawater supply pump for pumping and supplying seawater; And a seawater supply line connecting the seawater supply pump and the inlet of the moving tank.

In addition, the pseudo-ballast system may further include a drive unit that linearly moves the moving tank along the guide rails.

In addition, an opening / closing valve may be mounted on the inlet and outlet of the moving tank, respectively, and the opening / closing valve may be operated and controlled through a separate controller.

In addition, a plurality of guide rails may be disposed on the fore and aft portions, respectively, and the moving tanks may be movably mounted on the respective guide rails.

In addition, the guide rails may be installed on a work installation leg connecting the two pontoons to each other.

In the meantime, the present invention provides a balancing method of semi-rigid line for adjusting the equilibrium state of the semi-rigid line in the process of drying the queen-wall by using the semi-rigid line balancing apparatus, Or adjusting a liquid storage amount of the moving tank to adjust an equilibrium state of the hull.

At this time, the guide rail may be provided in a direction crossing the two pontoons, and the heel state of the semi-rigid line may be adjusted by moving the moving tank along the guide rail in a state where the liquid is stored in the moving tank.

In addition, the guide rail may be provided at the forefront portion or the stern portion, and the amount of liquid stored in the moving tank may be adjusted through the inlet or outlet of the moving tank to control the trim condition of the semi-league line.

A plurality of guide rails are formed so as to extend in the direction transverse to the two pontoons and are respectively positioned at the forward portion and the stern portion. The moving rails are movably mounted on the plurality of guide rails, The trimmed state of the semi-rigid line can be adjusted by adjusting the liquid storage amount of the plurality of moving tanks through the inlet or the outlet of the semi-

According to the present invention, a guide rail is provided on a hull of a semi-rigid line, and a moving tank capable of storing and discharging liquid is movably mounted along the guide rail, so that a worker can use a portable pump, It is possible to control the heel and trim condition of the hull by simply adjusting the liquid storage amount of the moving tank or moving the moving tank along the guide rail without inconvenience of drainage work, The equilibrium state of the hull can be adjusted more quickly and conveniently, and the entire period of the quay wall drying operation can be shortened.

In addition, it is possible to control the equilibrium state of the hull in various forms by varying the arrangement of the guide rails, and in particular, to adjust the sensitivity of the hull to the movement of the center of gravity by controlling the amount of liquid stored in the moving tank There is an effect that the equilibrium state of the hull can be adjusted in various ways according to the needs of the user.

In addition, since a device such as a guide rail is installed by using a conventional work installation leg in the process of drying the wall of the semi-league line, it is not necessary to separately install the temporary support structure, so that the installation work can be simplified, It is possible to prevent shortage of the hull and cost reduction of the hull and to prevent the deterioration of the space efficiency of the hull operation in that no additional supporting structure is added.

FIG. 1 is a perspective view schematically showing the construction of a pseudo-ballast pneumatic ballast apparatus according to an embodiment of the present invention;
FIG. 2 is a perspective view schematically illustrating a configuration of a pneumatic ballast apparatus for semi-rigid lines according to another embodiment of the present invention;
FIG. 3 is a side view schematically showing a configuration of a pseudo-rigid-line pneumatic ballast apparatus according to an embodiment of the present invention;
FIG. 4 is an operating state diagram schematically showing a heel adjustment state using a pseudo-ball line balancing apparatus according to an embodiment of the present invention; FIG.
FIG. 5 and FIG. 6 are operational diagrams schematically illustrating a trim adjustment state using a pseudo-ballast apparatus of a semirig line according to an embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the drawings, the same reference numerals are used to designate the same or similar components throughout the drawings. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

FIG. 1 is a perspective view schematically illustrating a configuration of a semi-rigid line paddle ballasting apparatus according to an embodiment of the present invention. FIG. 2 is a perspective view illustrating a configuration of a paddle ballasting apparatus for a semi-rigid line according to another embodiment of the present invention. FIG. 3 is a side view schematically showing a configuration of a semi-rigid line pile-up ballast apparatus according to an embodiment of the present invention. Referring to FIG.

In the semi-rigid line balancing apparatus 300 according to an embodiment of the present invention, the equilibrium state of the hull is adjusted during the process of mounting the component block during the wall drying process for the semi-rigid line to prevent the hill and the trimming phenomenon of the hull And includes a guide rail 310 and a moving tank 320.

First, the semi-rigid line includes a pontoon 110 disposed to sink from the sea level to a certain depth, a column 120 installed in a vertical direction from the pontoon 110, and a horizontal deck 130). During the wall drying process, all of these structures are located on the shore near the wall.

The guide rail 310 is installed in a direction crossing two pontoons 110 facing each other and the moving tank 320 is mounted on the guide rail 310 so as to move linearly along the guide rail 310. An inlet 321 and an outlet 322 are formed in the moving tank 320 to allow the liquid L to flow in and out.

At this time, a plurality of guide rails 310 may be disposed on the forward side and the aft side, respectively. For example, as shown in FIG. Alternatively, as shown in FIG. 2, one of them may be disposed only on the forward side or the aft side.

Meanwhile, as shown in FIGS. 1 to 3, a semi-rigid line is being installed on the semi-rigid line to dry the sidewall, and a worker's foot 200 is installed so that the operator can pass across the two pontoons 110. It is preferable that the guide rail 310 according to the embodiment is installed on the existing work mounting leg 200 without additional structure for supporting the guide rail 310 from the viewpoint of workability.

Such a hypothetical ballast apparatus 300 can adjust the heel state of the hull by moving the moving tank 320 along the guide rail 310 in the line width direction with the liquid L flowing into the moving tank 320 The trimming state of the hull can be adjusted by adjusting the liquid storage amount stored in the moving tank 320. A detailed description thereof will be given below with reference to FIGS. 4 to 6. FIG.

In order to move the moving tank 320 along the guide rail 310 as described above, a separate driving unit 350 for moving the moving tank 320 may be provided. The driving unit 350 may include a moving tank 320 (Not shown) and a gear box (not shown) mounted on a work stationary foot 200 or a moving belt installed on a work stationary foot 200, or the like. Lt; / RTI >

An inlet 321 and an outlet 322 are formed in the moving tank 320 for introducing or discharging the liquid L into or from the moving tank 320. At this time, The liquid supply unit 340 may supply the liquid to the moving tank 340. The liquid supply unit 340 may supply the water from the sea to the moving tank 340. However, .

For example, the liquid supply unit 340 includes a seawater supply pump 341 for pumping and supplying seawater, a seawater supply line 342 for connecting the seawater supply pump 341 and the inlet 321 of the moving tank 320, As shown in FIG. At this time, the seawater supply pump 341 may be installed in the work installation leg 200 as shown in FIG.

On the other hand, in order to regulate the amount of liquid stored in the moving tank 320 through the inlet 321 and the outlet 322, an opening / closing valve 330 is installed to open and close the inlet 321 and the outlet 322, respectively And the on-off valve 330 may be configured to be operated and controlled through a separate controller 360. The control unit 360 receives an operation signal from an operation unit (not shown) that can be operated by the user and controls the operation of the open / close valve 330 or automatically operates the open / close valve 330 through a separate sensor, .

The control unit 360 can perform not only the operation control of the opening and closing valve 330 but also the operation control of the sea water supply pump 341 and the operation of the driving unit 350 for moving the moving tank 320 Control can also be performed.

According to this configuration, the opening / closing valve 330 is controlled by the control unit 360 to control the amount of liquid discharged from the moving tank 320, and the balance state of the hull can be adjusted in various ways through the adjustment of the liquid discharge amount .

Next, an operation state of the hypothetical ballast apparatus will be described with reference to FIGS. 4 and 6. FIG.

FIG. 4 is an operational state diagram schematically illustrating a heel adjustment state using a semi-rigid line paddle balancing apparatus according to an embodiment of the present invention. FIGS. 5 and 6 are views showing a state in which a hypothetical ballast of a semi-rigid line according to an embodiment of the present invention Fig. 3 is an operational state diagram schematically showing a trim adjustment state using the apparatus. Fig.

First, as shown in FIG. 4, when the liquid L is stored in the moving tank 320 through the liquid supply unit 340 according to the user's need, the heel adjustment process of the semi- The moving unit 320 acts as a weight body by the weight of the liquid L. The moving unit 350 is moved by the driving unit 350 in the width direction along the guide rail 310 in the left- The heel condition can be adjusted.

That is, if the moving tank 320 is moved along the guide rail 310 in a state where the liquid L is stored, the same effect as moving the weight in the lateral direction is generated. Accordingly, Direction.

Accordingly, when the hull phenomenon occurs in the hull during the process of mounting the component block during the quay wall drying operation of the semi-rigid line, the moving tank 320 is moved leftward or rightward in the line width direction along the guide rail 310, The center of gravity can be changed to maintain the equilibrium state of the hull.

At this time, the liquid storage amount stored in the moving tank 320 can be adjusted according to the user's need, and can be appropriately adjusted in consideration of the change in the size of the center of gravity required according to the magnitude of the heel phenomenon occurring in the process of mounting the component block .

Next, as shown in FIGS. 5 and 6, the trim adjustment process of the semi-rigid line is performed by simply adjusting the amount of liquid stored in the moving tank 320 without moving the moving tank 320, The trim condition can be adjusted.

For example, in the case where the guide rail 310 is positioned on the forward side and the aft side as shown in Fig. 5, for example, the liquid L is filled in the fore side moving tank 320, When the liquid is completely discharged to the side moving tank 320, the center of gravity moves to the forward side by the forward side moving tank 320 in which the liquid L is stored. On the other hand, when the stern side moving tank 320 is filled with the liquid L and all of the liquid is discharged to the fore side moving tank 320, the stern side moving tank 320 stores the liquid L, To the stern side.

In this way, by appropriately adjusting the amount of liquid stored in the forward moving tanks 320 and the forward moving tanks 320 according to the trimming condition of the hull, the center of gravity is shifted to the bow or stern side to maintain the equilibrium state of the hull .

6, when the guide rail 310 is positioned only on the forward side or the aft side, simply by adjusting the liquid storage amount stored in one moving tank 320, the center of gravity Can be changed.

For example, when the guide rail 310 is located only on the side of the bow, when the liquid L is filled in the moving tank 320 located on the bow side, the center of gravity moves to the bow side, When the liquid L is discharged, the center of gravity relatively moves toward the stern side relative to the state in which the liquid is filled in the moving tank 320.

Accordingly, the trim state of the hull can be adjusted by using only one moving tank 320 in this manner.

As described above, the present invention can adjust the heel state and the trim state of the hull through the movement of the moving tank 320 or the adjustment of the liquid storage amount, Both heel and trim conditions can be adjusted at the same time. In addition, the sensitivity of the moving center of gravity can be adjusted by adjusting the liquid storage amount of the moving tank 320, and the balance state of the hull can be adjusted in various ways according to the user's need.

Particularly, in the case where the normal ballast system is not mounted on the hull during the drying process of the quay of the semi-rigid ship, or if the normal operation is not possible even if the hull is mounted, the operator pumping liquid to the ballast tank using the portable pump, It is not necessary to adjust the equilibrium state and the equilibrium state of the hull can be quickly and conveniently adjusted by simply moving the moving tank 320 or adjusting the liquid storage amount, will be.

The guide rails 310 are installed in a direction transverse to the pontoons 110. The guide rails 310 may be installed parallel to the pontoons 110 and parallel to the pontoons 110, And may be installed in the right side, respectively. In this case, the trim of the hull can be adjusted through the movement of the moving tank 320, and the heel of the hull can be adjusted through the adjustment of the liquid storage amount of the moving tank 320. Since this operates on the same principle as described above, A detailed description thereof will be omitted.

The foregoing description is merely illustrative of the technical idea of the present invention, and various changes and modifications may be made by those skilled in the art without departing from the essential characteristics of the present invention. Therefore, the embodiments disclosed in the present invention are intended to illustrate rather than limit the scope of the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments. The scope of protection of the present invention should be construed according to the following claims, and all technical ideas within the scope of equivalents should be construed as falling within the scope of the present invention.

110: pontoon 120: column
200: Working leg 300: Hypothesis ballast device
310: guide rail 320: moving tank
321: Inlet port 322: Outlet port
330: opening / closing valve 340: liquid supply unit
341: Seawater supply pump 342: Seawater supply line
350: driving unit 360:

Claims (12)

A hypothetical ballast apparatus for controlling the equilibrium state of a semi-
A guide rail extending in one direction so as to cross the hull; And
A moving tank which is formed with an inlet and an outlet so as to allow liquid to flow in and out, and which linearly moves along the guide rail;
Wherein the semilig line includes a plurality of holes. The method according to claim 1,
Further comprising a liquid supply unit for supplying liquid to the moving tank through the inlet. 3. The method of claim 2,
Wherein the liquid supply unit supplies seawater to the moving tank. The method of claim 3,
The liquid supply unit
A seawater supply pump for pumping and supplying seawater; And
A seawater supply line for connecting the seawater supply pump and an inlet of the moving tank,
Wherein the semilig line includes a plurality of holes. The method according to claim 1,
Further comprising a drive unit for linearly moving the moving tank along the guide rails. The method according to claim 1,
An inlet and an outlet of the moving tank are respectively equipped with opening and closing valves,
Wherein the open / close valve is operated and controlled through a separate control unit. The method according to claim 1,
The guide rails are elongated in a direction transverse to the two pontoons and are disposed in a plurality of positions to be respectively located at the forward portion and the stern portion,
Wherein the moving tank is movably mounted on each of the guide rails. 8. The method according to any one of claims 1 to 7,
Wherein the guide rail is installed on a work fixing leg connecting the two pontoons to each other. A balancing method of a semi-rigid line for adjusting an equilibrium state of a semi-rigid line of a quay wall drying process using a semi-rigid line balancing apparatus according to claim 1,
Wherein the equilibrium state of the hull is controlled by moving the moving tank along the guide rail or adjusting the liquid storage amount of the moving tank. 10. The method of claim 9,
The guide rails are provided in a long direction across the two pontoons,
Wherein the lifting state of the semi-rigid line is adjusted by moving the moving tank along the guide rail while the liquid is stored in the moving tank. 11. The method of claim 10,
The guide rail is provided on the forefoot portion or the stern portion,
Wherein a trimmed state of the semi-rigid line is adjusted by adjusting a liquid storage amount of the moving tank through an inlet or an outlet of the moving tank. 11. The method of claim 10,
A plurality of guide rails are formed to be long in a direction crossing two pontoons so as to be respectively located at a forward portion and a stern portion,
The moving tanks are movably mounted on the plurality of guide rails, respectively,
Wherein a trim state of the semigliptine line is adjusted by adjusting a liquid storage amount of a plurality of the moving tanks through an inlet or an outlet of the moving tank.

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