KR101864732B1 - multi air cell supply apparatus for salvage sunken ship - Google Patents

Abstract

The present invention provides a cell supply apparatus for salvaging a ship, comprising: a conveyance pipe portion made of a flexible material, formed with a conveyance space therein, and installed to communicate with a submerged space of a sunken hull at one end portion thereof; a plurality of multi-air cells formed with a micro-buoyancy space therein by being dispersedly filled in a shape corresponding to the submerged space such that the buoyancy of the hull can be gradually recovered; and a cell supply portion formed with a receiving space for multiply receiving the multi-air cells therein while communicating with the other end portion of the conveyance pipe portion at one side thereof, and sequentially supplying each of the multi-air cells to the conveyance pipe portion such that the multi-air cells can be conveyed in a continuously arranged manner in multiple stages along the conveyance space.

Description

[0001] The present invention relates to a cell supply apparatus for a salvage vessel,

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a cell lifting device for lifting a ship, and more particularly, to a cell lifting device for lifting a ship with improved economic efficiency and safety for a lifting operation of a sunken ship.

In recent years, there has been an increase in the number of ship sinking events due to the increase in marine traffic activation and fishery activity. These sinks cause not only primary damage such as human injury but also damage to the marine ecosystem due to extensive marine pollution due to leakage of fuel when the hull is corroded after the sinking and the damaged area is increased due to seawater pressure or algae. It is causing the car disaster.

Therefore, it is most desirable to prevent the sinking of the ship, but it is desirable to rapidly salvage the ship which has been sunk in the water when the inevitable sinking of the ship.

On the other hand, a pulling method in which a lifting wire is fixed to a hull which has been immersed in water and a lifting wire is pulled up by a winch or a crane provided on a separate lifting line is widely used.

However, in order to apply the lifting method using the pulling force to a large-sized ship, it is required to enlarge the equipment such as a lifting line and a towing device, so that there is a problem that the lifting process requires excessive cost and time.

In detail, it is important to maintain the balance of the hull in order to salvage the sinking vessel, but to prevent the loss or secondary damage of the fuel. However, the conventional pulling lifting device is not fixed to the multiple lifting wires There is a problem that it takes much time to set the position and fix each lifting wire to each part of the hull.

Furthermore, as the size of the sinking vessel increases, it is difficult to achieve balanced traction on a plurality of lifting wires. In the case where the towing force is concentrated on a part of lifting wire, the hull is broken and the lifting operation is delayed or a serious problem there was.

Korean Patent No. 10-1625798

SUMMARY OF THE INVENTION In order to solve the above problems, the present invention provides a cell lifting device for lifting a ship with improved economic efficiency and safety for a lifting operation of a sunken ship.

In order to solve the above-described problems, the present invention provides a hermetically sealed hermetically sealed container comprising: a transport pipe part having a transporting space formed therein;
A plurality of multi air cells in which minute buoyant spaces are formed so that buoyancy of the hull is gradually restored by being dispersed and filled in a shape corresponding to the water immersion space; And
A plurality of multi air cells are arranged in a plurality of stages along the transport space and are continuously arranged in a multi-stage manner so that the multi air cells are transported to the transport tube, And a cell supply unit for supplying the cell supply unit in sequence,
A plurality of through holes having a size exceeding the cross sectional area in the longitudinal direction of the multi air cell are formed at a central portion so as to secure the flexibility of the transport tube portion and the flow cross sectional area of the multi air cell, , The transport tube portion is provided to have an inner diameter corresponding to the outer diameter of the weight ring,
Wherein the weight ring is arranged in multiple stages such that an outer circumferential surface of the weight ring is in contact with an inner circumferential surface of the transport tube portion, and each of the front end portion and the rear end portion is in close contact with another adjacent weight ring.

Here, the multi-air cell may include a reinforced plastic material having a rounded side wall portion to be slidably transported along the inner wall of the transport pipe portion, the reinforcing plastic material having a radial support strength exceeding the submerged pressure of the hull, It is preferable that a dispersion guiding part rounded at one end is provided so as to be slid upon contact and to be dispersedly arranged in the immersion space.

The cell supply unit includes a magazine case having a supply hole communicating with the transport tube at one side and a plurality of multi-air cells continuously accommodated at one end thereof in the insertion direction with respect to the supply hole, A first pressurizing unit that pressurizes the other end of the multi-air cell so that each multi-air cell disposed opposite to the first multi-air cell is inserted into the transport tube; A second pressurizing unit that pressurizes a side surface portion of the multi air cell in cooperation with a pressurizing unit and a third pressurizing unit that interlocks with the first pressurizing unit to open and close the opening and closing door of the supply hole so as to prevent the back flow of the multi- It is preferable to include a pressing means.

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Through the above solution, the present invention provides the following effects.

First, unlike the conventional method of towing through a lifting wire fixed to the hull, the buoyancy restoration due to the continuous supply of the small multi-air cell enables economical lifting work compatible with a large hull from a small hull, The multi-air cell of the present invention is floated and dispersed in the flooded space, and the supporting area for the lifting force is widely extended to each part of the hull, so that the risk of breakage of the hull is minimized and the safety of the lifting work can be improved.

Secondly, the cell supply unit can smoothly supply the plurality of multi-air cells to the deep water depth without limit of the length of the transport tube through the gradual movement of the multi-air cells supplied by the subsequent multi-air cells, The backflow of the multi air cells supplied in advance through the opening / closing door selectively opened and closed can be prevented, so that safety and efficiency of lifting work can be improved.

Third, since the multi-air cell is aligned in an upright position in the submerged space so that the round type dispersion guide is disposed upward, the dispersed guide portion of the subsequent multi-air cell is inserted into the coupling induction portion of the upper multi- Accordingly, the gap between mutual pockets is reduced, and the transfer of the lifting force between the multi-air cells is facilitated, so that the efficiency of the lifting operation can be improved.

Fourth, since the weight rings arranged in the transportation space are mutually separated, the arranging direction is changed fluidly in accordance with the bending direction of the transportation pipe portion, so that the flexibility of the transportation pipe portion is ensured and the cell supply portion and the water immersion space are stably connected, So that the multi-air cell can be smoothly transported, and the efficiency of the lifting operation can be improved.

Fifth, since the weight ring is made of a high-density metal material, buoyancy of the multi-air cell transported along the transport pipe portion and the transport pipe portion can be canceled so that lifting of the transport pipe portion and thus separation from the hull can be prevented, Safety and efficiency can be improved.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic view showing a cell lifting device for lifting a vessel according to an embodiment of the present invention; FIG.
BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a cell lifting device for lifting a ship.
3 is a cross-sectional view of a multi-air cell of a cell for lifting a ship according to an embodiment of the present invention.
FIG. 4 is a schematic view of a cell for lifting a ship according to another embodiment of the present invention; FIG.
FIG. 5 is an exemplary view showing a lifting process using a cell lifting cell supplying apparatus according to another embodiment of the present invention; FIG.
FIG. 6 is a cross-sectional view illustrating a transport pipe portion of a cell for lifting a ship according to another embodiment of the present invention. FIG.

Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a schematic view showing a cell lifting device for lifting a ship according to an embodiment of the present invention, FIG. 2 is an exemplary view showing a lifting process using a cell lifting cell supplying device according to an embodiment of the present invention, 3 is a cross-sectional view of a multi-air cell of a cell for lifting a ship according to an embodiment of the present invention.

1 to 3, the vessel lifting cell supply apparatus 100 according to the present invention includes a transport tube 20, a multi-air cell 30, and a cell supply unit 10. Here, the transport pipe portion 20 is provided with a transport space 21 therein, and is connected to the submerged space 1 of the hull s which is partially sunk.

1 and 2, the transport pipe 20 connects the cell supply unit 10 installed on the working vessel, which is the main body of the lifting work such as a barge line (not shown), and the hull s And a transportation space 21 through which the multi-air cell 30 is transported is formed therein.

At this time, the transport pipe portion 20 is provided with a predetermined flexibility, so that it can stably connect between the cell supply portion 10 and the sunken ship s, even when the working vessel is caused by disturbance factors such as waves.

The transport pipe 20 is preferably made of an elastic material having low temperature stability and high strength so as to prevent breakage due to pressure due to water depth and currents, and to prevent degradation / breakage of flexibility due to low temperature. For example, the transport tube portion 20 may be formed of a polymer material such as nitrile rubber (acrylonitrile-butadiene rubber, NBR) obtained by copolymerizing butadiene and acrylonitrile, and may have a low acrylonitrile (ACN) content It is more preferable to provide a low nitrile rubber series having high flexibility at low temperatures.

The water immersion space 1 is a part of the sunken hull s which is partitioned from the outer space among seawater filled areas and includes an engine room, a car deck, a hotel area ), Ballast tanks, fresh water tanks and so on.

At this time, when the flooded space 1 into which the multi air cell 30 is to be inserted is selected, a pore connecting to the selected flooded space 1 is formed on the outer wall of the hull s, One end of the transport tube 20 is connected. Of course, the perforation may be replaced with a perforation generated when the hull (s) sinks, and the perforation or the perforation may be formed or selected on the lower side of the submerged space (1). It is preferable that the other pores located on the upper side from the perforations or the pores to which the transport tube part 20 is connected are selectively sealed according to whether the multi air cells 30 can pass or not.

At this time, it is also possible to connect two or more transport pipe sections 20 to one submerged space 1 according to the area of the submerged space 1. Separate independent cell feeder sections 10 are connected to the respective transport pipe sections 20 do.

1 to 3, the multi air cell 30 refers to a capsule-shaped member having a minute volume and having a micro-buoyancy space 31 sealed therein, A predetermined buoyancy can be given to the multi air cell 30 through the buoyancy space 31. [

At this time, compressed air is injected into the minute buoyancy space 31, and the pressure of the minute buoyancy space 31 is set in proportion to the depth of the hull s or the water immersion space 1. For example, when the water depth of the hull (s) or the water immersion space 1 to be injected by the multi air cell 30 is 10 m, it is 1 bar (1 kg / cm 3) The inner pressure of the minute buoyancy space 31 is preferably set.

In this case, the size, number and internal pressure of the micro-buoyancy space 31 are preferably set in consideration of the total volume and weight of the multi-air cell 30, the depth of injection, and the like.

The multi air cell 30 is transferred to the immersion space 1 along the transport tube 20. At this time, the multi air cell 30 discharges the seawater corresponding to the volume to the outside of the water immersion space 1 and is inserted into the water immersion space 1, and a predetermined positive buoyancy is applied to the inner wall of the water immersion space 1 through self buoyancy to provide.

That is, the multi-air cell 30 is formed to have a small size for dividing and supplying a plurality of lifting forces for lifting the hull, and each buoyancy amount is not excessively high, so that it can be easily transferred to the deep water depth, .

At this time, if the sum of the buoyant force or the lifting force through the plurality of continuously supplied multi air cells 30 exceeds the total weight of the hull (s), the hull (s) is lifted up.

That is, the supplied multi air cell 30 is floated in the state of being inserted into the submergence space 1 and is dispersed and filled in a shape corresponding to the submergence space 1, and is contacted with each part of the ship s Buoyancy can be provided.

The continuously supplied multi air cell 30 is brought into contact with the other multi air cell 30 that is in contact with the hull s or contacted with the hull s and thereby directly or indirectly increases the buoyancy of the hull s, The buoyancy of the hull (s) gradually increases according to the number of the multi air cells 30 supplied to the water immersion space 1, and natural floatation is induced.

Unlike the conventional method in which the lifting wire is forcedly pulled through the lifting wire fixed to the hull (s), not only the lifting work of the lifting wire is required but also the incremental buoyancy restoration due to the continuous supply of the small multi- It can be applied to a small ship, a barge or a large ship without being enlarged, so that the compatibility and economical efficiency of the apparatus can be improved.

Further, unlike the conventional case where the pulling force is concentrated on the portion fixed to the lifting wire, as the plurality of multi air cells 30 are floated and dispersed in the submergence space 1 and contact each part of the inner wall of the hull s, Since the lifting force (floating force) is dispersed and supported, the risk of additional breakage of the hull (s) is minimized and the safety of the lifting work can be improved.

The cell supply part 10 includes a storage space 10a in which a plurality of the multi air cells 30 are accommodated. One side of the storage space 10a communicates with the other end of the transport tube part 20, do. The cell supply unit 10 sequentially supplies the multi-air cells 30 to the transport tube 20 so that the multi-air cells 30 are continuously arranged in a multi-stage manner along the transport space 21 and transported.

That is, the cell supply unit 10 supplies the multi-air cells 30 accommodated therein to the transport tube 20, and the multi-air cells 30 previously supplied are pressed by the multi-air cells 30 supplied subsequently, Into the immersion space (1).

Accordingly, even when the length of the transport pipe 20 is long or the depth of the sunken hull s is deep, the multi air cell 30 can be smoothly supplied to the submerged space 1. [

Here, the cell supply unit 10 may include a magazine case 11, a first biasing unit 13, a second biasing unit 14, and a third biasing unit 15.

In detail, a supply hole 11a communicating with the transport tube 20 is formed on one side of the magazine case 11, and a charging guide part 12 into which the multi air cell 30 is inserted is formed on the other side . At this time, the inner storage space 10a of the magazine case 11 is formed to extend from the size corresponding to one multi air cell 30 to one side and the other side.

The supply hole 11a is formed at a lower end of one side of the storage space 10a and the other upper end of the storage space 10a is connected to the insertion guide unit 12. [

At this time, the multi air cell 30 is inserted into the insertion guide portion 12 so that one end of the round air is directed downward, which is the inserting direction with respect to the supply hole 11a. And can be housed in the storage space 10a such that the side portions thereof are in contact with each other.

The first pressing means 13 presses the other end of the multi air cell 30 so that each multi air cell 30 disposed opposite to the supply hole 11a is inserted into the transport tube 20. In detail, the first pressing means 13 is provided at an upper end portion of one side of the storage space 10a opposed to the supply hole 11a, which is provided with a hydraulic or pneumatic cylinder. At this time, when the cylinder rod 13a is extended, the first pushing means 13 pushes the other end of each multi-air cell 30 disposed opposite to the supply hole 11a downward, .

The second pressurizing means 14 interlocks with the first pressurizing means 13 so that other multi-air cells continuously arranged when the multi-air cell 30 at the supply hole 11a side is discharged, (30). In detail, the second pressing means 14 is provided with a hydraulic or pneumatic cylinder, and is disposed laterally on the other side of the storage space 10a. At this time, when the cylinder rod 14a of the second pressing means 14 is extended, the multi air cell 30 housed in the other side of the storage space 10a can be moved toward one side of the storage space 10a.

That is, the second biasing means 14 is interlocked and controlled so that the first biasing means 13 is expanded and contracted correspondingly when the first biasing means 13 is expanded and contracted when the multi-air cell 30 on the supply hole 11a side is discharged The other multi air cells 30 can be replenished so as to face the supply holes 11a. Accordingly, a plurality of multi-air cells 30 can be rapidly and continuously supplied and injected into the submergence space 1 through the above-mentioned transport pipe 20.

The third pressurizing means 15 is connected to the first pressurizing means 13 so as to prevent the back flow of the multi air cell 30 supplied to the transport tube portion 20, Thereby opening and closing the door 15a. The third pushing means 15 may be a hydraulic or pneumatic cylinder having an opening and closing door 15a connected to the end of the cylinder rod and the opening and closing door 15a when the first pushing means 13 is extended And the opening and closing door (15a) is closed when the extension of the first pressing means (13) is completed.

This prevents the backward flow of the multi-air cell 30 inserted into the transport space 21 and smoothly feeds the multi-air cell 30 according to the extension of the first pushing means 13 .

1 to 3, it is preferable that the multi air cell 30 is provided with a rounded side wall portion 33 to be slidably transported along the inner wall of the transport tube portion 20. Accordingly, the multi-air cell 30 continuously supplied through the cell supply unit 10 can be smoothly moved along the inner wall of the transport pipe 20 and the transport pipe 20 ) Can be minimized.

At this time, the multi air cell 30 is made of a reinforced plastic material, and it is more preferable that the multi air cell 30 has a circular cross-section so that the buoyancy can be maximized with high density and low density, and the support strength in the radial direction is maximized.

Here, it is preferable that the radial support strength of the multi air cell 30 exceeds the hydraulic pressure at the water depth at which the hull (s) is immersed, that is, at the water depth where the hull (s) is located. Accordingly, the multi-air cell 30 can function as a stable buoyant body without being damaged even in the water immersion space 1 at a deep water depth.

It is preferable that a rounded dispersion guide part 32 is formed at one end of the multi air cell 30 so as to be slid on the inner wall of the hull s and to be dispersedly arranged in the water immersion space 1.

That is, the multi air cell 30 is provided with a dispersed guide portion 32 protruding at one end thereof in a rounded shape, and the side wall portion 33 may be provided with a round cylindrical member or a completely spherical member It is possible.

1 and 2, the multi-air cell 30 is injected into the submergence space 1 through a perforation or a perforation on the lower side of the submergence space 1. The multi air cell 30 is lifted due to the buoyant force generated through the minute buoyancy space 31 so that the collision with the subsequent multi air cell 30 due to the continuous infusion of the multi air cell 30, And float in the immersion space (1) according to the seawater flow of the immersion space (1).

At this time, as the dispersed guide portion 32 contacts the inner wall of the hull (s) and smoothly slidingly moves with a low frictional force, a decrease in momentum due to lifting or floating movement is minimized, Can be more smoothly dispersed inside. Accordingly, lifting force of each part in the immersion space 1 can be uniformly raised, and natural floating of the hull (s) is possible.

4 is a schematic view showing a cell lifting device for lifting a ship according to another embodiment of the present invention, and FIG. 5 is an exemplary view showing a lifting process using a cell lifting cell supplying device according to another embodiment of the present invention And FIG. 6 is a cross-sectional view illustrating a transport pipe portion of a cell for lifting a ship according to another embodiment of the present invention.

Since the basic configuration except for the multi air cell 230 and the weight ring 240 is the same as that of the above-described embodiment, a detailed description of the same configuration is omitted, and the same configurations are denoted by the same reference numerals.

As shown in FIGS. 4 to 6, the third pressing means 215 may be an elastic member such as a spring for elastically supporting the opening / closing door 215a radially inward. More specifically, the opening / closing door 215a is disposed at least one along the rim of the supply hole 11a. In the state where the opening / closing door 215a is maximally moved radially inward, each radially inner end is connected to one end And may be disposed radially outward from the center.

At this time, when the upper multi-air cell 230 of the supply hole 11a is pressed through the first pressing means 13, the dispersion inducing portion 232 is slid in contact with the radially inner end of the opening / closing door 215a The opening and closing door 215a is pushed outward in the radial direction so that the supply hole 11a can be opened.

When the multi air cell 230 is passed, the opening / closing door 215a is restored to the inside in the radial direction by the elastic restoring force of the third pressing means 215 and the multi air cell 230 And the other end portion of the gasket is hooked to prevent backflow.

The other end of the multi air cell 230 is formed with a coupling guide part 234 which is recessed to correspond to the dispersion guide part 232 and is closely attached to the dispersed guide part 232 of another multi air cell.

In detail, the multi air cell 230 may include a cylindrical guide member 232 formed at one end thereof with a dispersed guide portion 232 protruding in a round shape, and a coupling guide portion 234 formed at a lower end thereof in a rounded shape. have. Of course, the multi air cell 230 may have a spherical shape with one side thereof being recessed. At this time, a micro-buoyancy space 231 for forming buoyancy is formed in each of the multi air cells 230, and the micro-buoyancy space 231 is integrated into the outer wall of the multi air cell 230 as shown in FIG. And can be divided into fine bubble forms. For this purpose, the multi air cell 230 may be provided with a high-strength foam resin system.

Here, the multi air cell 230 is continuously supplied to the transport pipe 20 through the cell supply unit 10. That is, a plurality of multi-air cells 230 are continuously injected into the transport tube 20, and the multi-air cells 230 supplied previously are pressurized by the multi-air cells 230 supplied subsequently, Lt; / RTI >

At this time, as the distributed guide portion 232 of the trailing multi-air cell 230 is inserted into the coupling induction portion 234 of the preceding multi air cell 230, the continuous alignment state of each multi air cell 230 can be stably maintained , The pressing force transmission between the continuously arranged multi air cells 230 can be further facilitated.

The multi air cell 230 may have a structure in which the center of gravity of the multi air cell 230 is deflected toward the coupling induction unit 234 so that the dispersion guide unit 232 is floated upward. For this, a weight balance portion 235 is provided at the rim of the coupling induction portion 234, but the structure may be such that the center of gravity of the multi air cell 230 can be deflected toward the other end portion. .

Here, the weight balance unit 235 may adjust the center of gravity of the multi air cell 230 to the other end side with a weight smaller than the buoyancy of the multi air cell 230.

In detail, the multi air cell 230 supplied through the transport tube 20 is lifted due to buoyancy through the small buoyancy space 231, and collides with the subsequent multi air cell 230 due to the continuous infusion of the multi air cell 230, Or floated within the immersion space (1) according to the seawater discharge flow of the immersion space (1). At this time, the multi air cell 230 whose center of gravity is adjusted through the weight balance portion 235 can be floatingly moved so that the dispersion guide portion 232 is aligned upward and contacts the ship s.

As a result, the multi-air cells 230 of the submerged space 1 are maintained in the upright state in the longitudinal direction, and a plurality of multi-air cells 230 are formed on the inner wall of the hull (s) So that the buoyant force of each multi air cell 230 can be smoothly transmitted to the hull s.

In addition, since the dispersed guide portion 232 of the subsequent multi air cell 230 is inserted into the coupling induction portion 234 of the multi air cell 230 that is in contact with the hull s, A plurality of multi air cells 230 can be injected into the flooded space 1 having the same volume and the lifting force of the lower side multi air cell 230 can be transmitted to the upper side multi air cell 230 and the hull s more accurately .

4 to 6, a plurality of weight rings 240 having through-holes 241 through which the multi-air cell 230 is passed are inserted into the transporting space 21.

In detail, the weight ring 240 has a surface rounded ring-shaped member, and a through hole 241 having a size exceeding the longitudinal cross-sectional area of the multi air cell 230 is formed at the center.

At this time, the transport tube portion 20 is provided to have an inner diameter corresponding to the outer diameter of the weight ring 240, and the weight ring 240 is inserted such that its outer peripheral surface contacts the inner peripheral surface of the transport tube portion 20.

The weight ring 240 can support the transport space 21 against the pressure of the sea water applied to the outer circumferential surface of the transport tube 20 and the weight of the multi- The flow cross-sectional area 20 can be secured.

A plurality of the weight rings 240 are inserted into the transporting space 21, and the weight rings 240 can be continuously arranged in multiple stages so that the front end and the rear end of the weight ring 240 are in close contact with adjacent adjacent weight rings. Accordingly, each of the weight rings 240 can be maintained in a state of being arranged in the radial direction so that the outer peripheral surface faces the inner wall surface of the transport tube portion 20, so that the inner wall surface of the transport tube portion 20 can be stably supported .

Since the plurality of weight rings 240 arranged in the transport space 21 can be alternately arranged in the moving direction in accordance with the bending direction of the transport tube 20 in a separated state, Can be maintained.

Thus, the connection state between the cell supply part 10 and the water immersion space 1 provided on the working vessel can be stably maintained through the flexible pipe 20.

In addition, since the inner wall surface of the transport tube portion 20 is supported by the weight ring 240 so that the reduction deformation in the radially inner side due to the seawater pressure can be minimized, 230 can be stably secured and the multi air cell 230 can be smoothly transported.

It is preferable that the weight ring 240 is made of a high-density metal so that the buoyant force of the transport tube 20 is canceled. The buoyancy of the transport tube 20 is preferably understood to mean the buoyant force of the transport tube 20 and the buoyancy of the multi air cell 230 accommodated in the transport space 21 or the transport space 21 .

That is, the number of inserts may be selected depending on the material density, the length of the transport tube 20, and the like so that the weight ring 240 has a weight of gravity opposite to the buoyancy of the transport tube 20. Accordingly, the floating tube 20 can be prevented from floating by the buoyant force of the multi air cell 230 transported along the inside thereof, and the transport tube portion 20 and the water immersion space 1 can be stably connected.

As described above, the present invention is not limited to the above-described embodiments, and variations and modifications may be made by those skilled in the art without departing from the scope of the present invention. And such modifications are within the scope of the present invention.

100: Cell feeder 10: Cell feeder
20: Transport tube 30, 230: Multi air cell
240: weight ring

Claims (5)

A transport tube part of a flexible material which is provided to be in communication with the water immersion space of the hull which is partially sunk,
A plurality of multi air cells in which minute buoyant spaces are formed so that buoyancy of the hull is gradually restored by being dispersed and filled in a shape corresponding to the water immersion space; And
A plurality of multi air cells are arranged in a plurality of stages along the transport space and are continuously arranged in a multi-stage manner so that the multi air cells are transported to the transport tube, And a cell supply unit for supplying the cell supply unit in sequence,
A plurality of through holes having a size exceeding the cross sectional area in the longitudinal direction of the multi air cell are formed in the center portion so as to secure the flexibility of the transport tube portion and the flow cross sectional area of the multi air cell, , The transport tube portion is provided to have an inner diameter corresponding to the outer diameter of the weight ring,
Wherein the weight ring is arranged in multiple stages such that an outer circumferential surface of the weight ring is in contact with an inner circumferential surface of the transport tube portion, and each of the front end portion and the rear end portion is in close contact with another adjacent weight ring. The method according to claim 1,
Wherein the multi air cell comprises a reinforced plastic material having a rounded side wall portion to be slidably transported along the inner wall of the transport tube portion and having a radial support strength exceeding a submerged pressure of the hull, And a dispersion guiding part rounded at one end thereof is provided so as to be dispersed and arranged in the water immersion space. The method according to claim 1,
The cell supply unit
A magazine case in which a plurality of multi air cells are continuously accommodated so that one end thereof is arranged in the insertion direction with respect to the supply hole,
First pressing means for pressing the other end of the multi air cell so that each multi air cell disposed opposite to the supply hole is inserted into the transport tube portion;
Second pressurizing means for pressurizing the side surface portion of the multi air cell in cooperation with the first pressurizing means so that another multi air cell continuously arranged when the supply hole side multi-
And a third pressurizing means for opening and closing the opening and closing door of the supply hole interlocked with the first pressurizing means so as to prevent the back flow of the multi air cell supplied to the transport tube portion. delete delete

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