KR102370605B1 - System for removing fouling using shaker device - Google Patents

Abstract

The present invention relates to a system for removing fouling of a ship using a vibration generator, and more particularly, by converting vibration generated by the vibration generator into an in-plane wave and transmitting it to the surface of the hull, It relates to a fouling removal system for a ship using a vibration generator for removing marine life.
According to the present invention, a vibration generator for generating vibration; and a pad having a magnet detachably attached to the surface of the ship's hull; and a vibration generator that converts the vibration generated by the vibration generator into an in-plane wave and transmits it to the surface of the hull. A fouling removal system is provided.

Description

System for removing fouling using shaker device

The present invention relates to a system for removing fouling of a ship using a vibration generator, and more particularly, by converting vibration generated by the vibration generator into an in-plane wave and transmitting it to the surface of the hull, It relates to a fouling removal system for a ship using a vibration generator from which marine life is removed.

Various kinds of marine life are attached to the part below the waterline where the hull is submerged in seawater, and these marine creatures increase the weight of the hull and increase resistance, which not only increases fuel consumption, but also reduces sailing speed. The shipbuilding industry is making ceaseless efforts to suppress the attachment of marine organisms below, and fuel consumption is increasing exponentially due to the recent increase in size and speed of ships.

Ship hull contaminants can be removed using mechanical or chemical means while the ship is moored. However, these alternatives cannot be used frequently, or can only be used after a long wait. It is customary to use a diver when the ship hull or structure is being washed in place, but there is an inherent risk whenever the diver enters the sea. Also, when a ship's hull is washed in a dry-dock, the ship must be brought to a standstill on the nearest available dry-dock, which is usually at a cost for the work required as well as for the cost of downtime. This leads to significant adverse financial consequences. Moreover, the removal of external annexes during elections can create significant regulated environmental problems. It is impractical to remove the fixing structure from a location for cleaning.

Conventionally, a technology that makes it difficult for contaminants to adhere to the surface of a ship's hull by using a toxic paint that releases a marine bioinhibitor at a low speed or using an extremely smooth silicone-based paint is used. However, in these coating methods, the antifouling component is eluted into the seawater by reaction with the seawater, so the durability of the coating film is lowered, and repair and painting must be done frequently. can cause

On the other hand, in the case of using a piezoelectric element to remove marine life in the prior art, when a voltage is applied to the upper and lower parts of the disk type piezoelectric element, the plate to which the piezoelectric element is attached is removed while repeating expansion and contraction in the radial direction. Excitation in in-plane mode causes a change in the stress distribution in the thickness direction of the plate, and delamination occurs at the plate surface, thereby eliminating surface fouling. However, in the case of ships, there is a problem in that sufficient excitation force cannot be generated because the structure is relatively thick and heavy.

Korean Patent Registration No. 10-0520794 (Registered on October 5, 2005)

The present invention is to solve the conventional problems as described above, by converting the vibration generated by the vibration generator into an in-plane wave and transmitting it to the surface of the hull, to remove the marine life attached to the surface of the hull. There is a purpose.

In addition, the present invention does not use an antifouling paint for antifouling, so there is no problem of pollution of the marine environment due to toxicity generated from the antifouling paint.

In addition, the present invention can be easily applied to an existing ship without design change, and there is no difficulty in additional maintenance due to system installation, thereby greatly reducing manpower and cost.

According to one aspect of the present invention for achieving the above object, a vibration generator for generating vibration; And a pad having a magnet that is detachably attached to the hull surface of the ship; It includes, and converts the vibration generated by the vibration generator into an in-plane wave (In-plane wave) and transmits it to the surface of the hull, it provides a system for removing fouling of a ship using a vibration generator.

and a vibration transmission unit for transmitting the vibration generated by the vibration generator to the excitation pad, wherein the vibration transmission unit includes: a first cylinder device connected to a lower portion of the vibration generator and on which an elastic restoring force acts; a support portion to which the first cylinder device is fixed; a second cylinder device having one end connected to the side surface of the support part and the other end connected to the excitation pad, to which an elastic restoring force acts; and a vibration transmission bar having one end connected to the first cylinder device and the other end connected to the excitation pad.

The first and second cylinder devices may include first and second external cylindrical bodies; first and second piston rods accommodated in the first and second external cylinders and reciprocating; first and second pistons mounted on distal ends of the first and second piston rods to bring the first and second piston rods into close contact with the inside of the first and second external cylindrical bodies; and first and second springs for restoring the first and second pistons to their original positions with respect to the reciprocating motions of the first and second pistons.

It is preferable that the inside of the first and second outer cylinders be filled with a cooling fluid.

Preferably, the excitation pad is formed to be spaced apart around the support part, and a plurality of second cylinder devices are provided to connect the support part and the excitation pad, respectively.

The magnet is preferably a permanent magnet that is detachable from the hull by generating or dissipating magnetic force by a switch.

According to the present invention, by converting the vibration generated by the vibration generator into an in-plane wave and transmitting it to the hull surface, there is an effect of removing marine organisms attached to the hull surface.

In addition, according to the present invention, since the antifouling paint for antifouling is not used, there is an effect that the problem of pollution of the marine environment due to toxicity generated from the antifouling paint does not occur.

In addition, according to the present invention, it can be easily applied to an existing ship without a design change, and there is no difficulty in additional maintenance due to the installation of the system, so that manpower and cost can be greatly reduced.

1 is a perspective view illustrating a system for removing fouling of a ship using a vibration generator according to the present invention.
2 is a partial side view showing a system for removing fouling of a ship using a vibration generator according to the present invention.

Hereinafter, the configuration and operation of a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings. In addition, the following examples may be modified in various other forms, and the scope of the present invention is not limited to the following examples.

1 is a perspective view illustrating a system for removing fouling of a ship using a vibration generator according to the present invention, and FIG. 2 is a partial side view illustrating a system for removing fouling of a ship using a vibration generator according to the present invention.

1 and 2, the fouling removal system 100 of a ship using a vibration generator includes a vibration generator 110 for generating vibration; and a pad 120 having a magnet 125 that is detachably attached to the surface of the hull of the ship, and provides a system for transmitting the vibration generated by the vibration generator 110 to the surface of the hull.

The vibration generator 110 may be a ship vibrator, and since the hull is made of a steel plate having a thickness of 1 cm or more, the vibration generated in the vibration generator 110 should be output over a certain range so that it can be transmitted to the hull surface.

Vibration generated in the vibration generator 110 may be transmitted to the excitation pad 120 attached to the hull surface so that the vibration of the excitation pad 120 is transmitted to the hull surface.

The excitation pad 120 may be formed integrally with the magnet 125 , and the magnet 125 is a permanent magnet detachable from the hull by generating or dissipating magnetic force by a switch, and the vibration transmitted to the excitation pad 120 . It can be strongly fixed to the hull so that the magnet does not deviate from the hull.

The vibration transmission unit 180 may transmit to the pad 120 having vibrations generated from the vibration generator 110 , and the vibration transmission unit 180 is connected to the lower part of the vibration generator 110 , and is a second device to which an elastic restoring force acts. One cylinder device 130, the support portion 160 to which the first cylinder device 130 is fixed, one end is connected to the side of the support portion 160 and the other end is connected to the vibrating pad 120, the second elastic restoring force acts The cylinder device 140 and one end are connected to the first cylinder device 130, and the other end is connected to the pad 120 with the vibration transmission bar 150; may include.

The first cylinder device 130 is a first external cylindrical body 131, a first piston rod 132 that is accommodated inside the first external cylindrical body 131 and reciprocates, and at the end of the first piston rod 132 . It is mounted, the first piston 133 for bringing the first piston rod 132 and the first external cylindrical body 131 into close contact, and the first spring 134 for restoring the first piston 133 to its original position with respect to the reciprocating motion of the first piston 133 . ) may be included.

Similarly, the second cylinder device 140 includes the second external cylindrical body 141 and the second piston rod 142 and the second piston rod 142 accommodated in the second external cylindrical body 141 and reciprocating. A second spring mounted at the distal end and restored to its original position with respect to the reciprocating motion of the second piston 143 and the second piston 143 for bringing the second piston rod 142 and the second external cylindrical body 141 into close contact. (144).

Since one end of the vibration transfer bar 150 is fixed to the first piston rod 132 of the first cylinder device 130 and the other end is fixed to the pad 120 with the other end, it is produced by the vibration generated by the vibration generator 110 . 1 When the piston rod 132 reciprocates in the vertical direction, one end of the vibration transfer bar 150 also moves up and down, and the other end of the vibration transfer bar 150 moves in the left and right directions.

That is, when the first piston rod 132 moves in the downward direction, one end of the vibration transmission bar 150 connected to the first piston rod 132 also moves downward, and at the same time, the other end of the first piston rod 132 and The connected excitation pad 120 may move in a direction away from the vibration generator 110 . At this time, the second cylinder device 140 having one end connected to the support unit 160 and the other end connected to the pad 120 having the other end may also be relaxed.

A fixing pin 151 fixed in a donut shape is installed on the first piston rod 132 , and the fixing pin 151 is connected to one end of the vibration transmission bar 150 by a first connection part 152 , and an excitation pad ( 120 may be connected to the other end of the vibration transmission bar 150 by the second connecting portion 153 .

The first connection part 152 and the second connection part 153 may be, for example, a fixing method using a fastening member such as a bolt or an installation member such as a bracket, in a direction in which the vertical motion of the vibration is horizontal with the surface of the hull (In- If it is a structure that is connected so that it can be transmitted in plane mode), any form may be possible.

Since the first cylinder device 130 and the second cylinder device 140 are provided with the first spring 134 and the second spring 144, respectively, the first spring 134 and the second spring 144 are relaxed. The first cylinder device 130 and the second cylinder device 140 can be restored to their original state, and the vibration generated in the vibration generator 110 through this relaxation/contraction is a pad ( 120), and the vibration transmitted to the excitation pad 120 may be transmitted to the hull surface as an in-plane wave. The in-plane wave transmitted to the hull surface causes delamination on the hull surface, and fouling such as marine life on the hull surface can be removed.

In addition, cooling fluids 135 and 145 are filled in the first external cylindrical body 131 and the second cylindrical body 141 of the first cylinder device 130 and the second cylinder device 140 , so that the first and second cylinders are filled with the first and second cylinders. It is possible to prevent the first and second cylinder devices 130 and 140 from being heated by the reciprocating motion of the devices 130 and 140 .

The structure and shape of such a vibration transmitting unit is only an example, and is not necessarily limited thereto, and thus may have various shapes and structures.

Meanwhile, the excitation pad 120 is formed to be spaced apart around the support part 160 , and a plurality of second cylinder devices 140 may be provided to connect the support part 160 and the vibrating pad 120 , respectively. In addition, the vibrator generator 110 and the support part 160 are connected to each other by a plurality of frames 115 , and the vibrator generator 110 and the support part 160 may be fixed to each other by the frame 115 .

Since the system 100 for removing fouling of a ship using a vibration generator generally has a double structure, it is preferable to be installed at a position for removing fouling on the outside of the hull rather than the inside of the hull.

In addition, in order to be fixed in close contact with the surface of the hull when attached to the surface of the hull, various methods including an adhesion method using an adhesive as well as a magnet 125, a fixing method using a fastening member such as a bolt or an installation member such as a bracket, etc. It can be attached to the hull surface by

According to the system 100 for removing fouling of a ship using a vibration generator according to the present invention, the vibration generated by the vibration generator is converted into an in-plane wave and transmitted to the hull surface, thereby attaching to the hull surface. There is an advantage of removing the old marine life, and since the antifouling paint for antifouling is not used, there is an advantage that the problem of environmental pollution of the sea due to the toxicity generated from the antifouling paint does not occur.

In addition, it can be easily applied to an existing ship without design change, and there is no difficulty in additional maintenance due to the installation of the system, thereby greatly reducing manpower and cost.

It is apparent to those of ordinary skill in the art that the present invention is not limited to the above embodiments, and that various modifications or variations can be implemented without departing from the technical gist of the present invention. did it

110: vibration generator 115: frame
120: with pad 125: magnet
130: first cylinder device 140: second cylinder device
150: vibration transfer bar 160: support
180: vibration transmission unit

Claims (6)

a vibration generator for generating vibrations;
an excitation pad having a magnet that is detachably attached to the surface of the hull of the ship; and
a vibration transmitting unit transmitting vibrations generated from the vibration generator to the excitation pad; includes,
The vibration transmission unit,
a first cylinder device connected to the lower part of the vibration generator and acting with an elastic restoring force;
a support portion to which the first cylinder device is fixed;
a second cylinder device having one end connected to the side surface of the support part and the other end connected to the vibrating pad, to which an elastic restoring force acts; and
a vibration transmission bar having one end connected to the first cylinder device and the other end connected to the excitation pad; and
A system for removing fouling of a ship using a vibration generator, which converts the vibration generated by the vibration generator into an in-plane wave and transmits it to the surface of the hull. delete The method according to claim 1,
The first and second cylinder devices are
first and second outer cylinders;
first and second piston rods accommodated in the first and second external cylinders and reciprocating;
first and second pistons mounted on distal ends of the first and second piston rods to bring the first and second piston rods into close contact with the inside of the first and second external cylindrical bodies; and
First and second springs for restoring the first and second pistons to their original positions with respect to the reciprocating motions of the first and second pistons; including, a fouling removal system for a ship using a vibration generator. 4. The method according to claim 3,
A system for removing fouling of a vessel using a vibration generator, wherein a cooling fluid is filled inside the first and second external cylinders. The method according to claim 1,
The excitation pad is formed to be spaced apart around the support part,
A plurality of the second cylinder device is provided to connect the support portion and the excitation pad, respectively, a system for removing fouling of a ship using a vibration generator. The method according to claim 1,
The magnet is a permanent magnet detachable to the hull by generating or dissipating magnetic force by a switch, a system for removing fouling of a ship using a vibration generator.

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