KR200476724Y1 - Bilge keel of floating structure - Google Patents

Abstract

The bilge keel of a floating structure capable of selectively entering and exiting from a floating structure through air pressure is introduced.
The bilge keel of the floating structure includes a keel plate rotatably installed on the curved portion of the floating structure, an air pocket for projecting the keel plate from the curved portion using the inflation force of air, and an air supply unit . ≪ / RTI >

Description

BILGE KEEL OF FLOATING STRUCTURE < RTI ID = 0.0 >

The present invention relates to a bilge keel of a floating structure, and more particularly, to a bilge keel of a floating structure capable of selectively introducing and exiting a kill plate at a curved portion of a ship by using air pressure.

Generally, anti-roll tanks such as bilge keel (Anti-Roll Tank) or anti-roll fin are installed in floats such as ships and offshore structures for the prevention and reduction of rolling waves. do.

The bilge keel is installed at a limited length below both sides of the ship or offshore structure and controls the rolling motion to prevent excessive rollover and prevent overturning.

And the rolling suppression tank has manual and active type, but the manual type deteriorates the rolling motion of the ship or float in the irregular wave which is in the actual sea state, and the active type has much power for driving the pump for controlling the period and phase angle .

In addition, the rolling restraining pin is based on the principle of an airplane wing. When a ship or a floating body moves in a rolling motion, the angle of attack of the pin is adjusted to generate an opposite force to the rolling motion. However, the structure is damaged due to the structural damage of the rolling restraining pin in the section where the ice is frequently frozen due to frequent external impacts such as ice and ice fragments.

In this connection, reference is made to "Rolling Suppression Apparatus of Ship and Float (Patent Publication No. 10-2003-0087229) ".

In this conventional technique, in the transverse motion of a ship or a float, a plurality of connecting members are installed near the bilge so that the transverse restraining plate, which is elongated in the longitudinal direction of the ship or float, However, in the case of a slight fluctuation, it is necessary to navigate with unnecessary attachments attached. In particular, when operating in areas with high ice, such as extreme weather, the use of bilge kills is very limited due to ice damage.

Therefore, it is possible to operate the ship without a bilge in the freezing region, and a technique which can selectively use the bilge kill in the nonfreezing region is required.

Korean Patent Laid-Open No. 10-2003-0087229 (disclosed on November 14, 2003)

Embodiments of the present invention seek to provide a bilge keel for a floating structure that can selectively enter and exit the floating structure.

According to an aspect of the present invention, there is provided a kill plate rotatably installed on a curved portion of a floating structure; An air pocket for projecting the kill plate from the curved portion by using an inflating force of air; And an air supply unit for supplying the air to the air pocket.

At this time, the air pocket has a convex portion whose surface is attached to the kill plate and is expanded by the injection of the air; And an air nipple that receives the air from the air supply unit and injects the air into the convex portion, or recovers the air from the convex portion and returns the air to the air supply unit.

The kill plate may include a first kill plate and a second kill plate disposed symmetrically with respect to the curved portion with the air pocket interposed therebetween.

The air supply unit may include an air tank in which the air is stored; An air compressor for providing air in the air tank to the air pocket; And an air line that provides a path of movement of the air that is moved from the air tank to the air pocket.

The kill plate may be installed at the curved portion via a support block, and the support block may be installed at the curved portion. And a block groove formed on one surface of the block body to receive the air pocket and the kill plate.

The air pocket further includes: a first air pocket for protruding the first kill plate from the curved portion; And a second air pocket for projecting the second kill plate from the curved portion, wherein the first air pocket and the second air pocket are provided with a control valve for selectively controlling the air supplied from the air supply unit Can be connected.

A hook portion bent toward the first air pocket and the second air pocket may be formed at the distal end of the first kill plate and the distal end of the second kill plate.

Embodiments of the present invention have an advantage in that a keel plate for rolling restraint and reduction can be selectively made in and out of a curved portion of a floating structure by using air pressure, thereby effectively suppressing rolling fluctuation according to a sea condition.

In addition, embodiments of the present invention allow a ship (floating structure) to recover a keel plate if it is operated at a low speed in a sea where the rolling motion is not large, or in an ice-freeze area such as an ice rim, There is an advantage that the resistance of the hull can be effectively reduced.

BRIEF DESCRIPTION OF DRAWINGS FIG. 1 is a block diagram showing a bilge keel of a floating structure according to a first embodiment of the present invention; FIG.
2 is an operational state diagram showing a bilge kill of a floating structure according to a first embodiment of the present invention.
3 is a configuration diagram showing a bilge keel of a floating structure according to a modification of the first embodiment.
4 is a block diagram showing a bilge keel of a floating structure according to a second embodiment of the present invention.
5 is an operational state view showing a bilge kill of a floating structure according to a second embodiment of the present invention.

Hereinafter, specific embodiments for implementing the idea of the present invention will be described in detail with reference to 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.

1st Example

The bilge keil according to this embodiment can control the rolling motion of the floating structure to suppress excessive rolling. Herein, the floating structure may include a ship or a view oil-immersion facility, and in this embodiment, the floating structure is applied to a non-ice-breaking navigation ship operating the non-freezing sea or a freezing navigation ship operating the freezing sea And may not be limited to the following description.

FIG. 1 is a view showing a bilge kill of a floating structure according to a first embodiment of the present invention, and FIG. 2 is an operational state view showing a bilge kill of a floating structure according to a first embodiment of the present invention.

1 and 2, the bilge keil according to the first embodiment of the present invention may include a kill plate 100, an air pocket 200, and an air supply unit 300.

Specifically, the kill plate 100 is configured to be selectively protruded from the curved portion 10 of the ship in order to reduce excessive rolling caused by the rolling motion of the ship (floating structure) And may be arranged to extend in the longitudinal direction of the ship.

However, this is illustrated for convenience of explanation, and the kill platen 100 may be installed at various positions other than the curved portion of the ship. For example, it may be installed on the flat part of the ship such as the bottom or side.

The kill plate 100 may include a first kill plate 100a and a second kill plate 100b which are rotatably installed at the curved portion 10 of the ship. The first kill plate 100a and the second kill plate 100b are disposed symmetrically with the air pocket 200 interposed therebetween and are disposed symmetrically with respect to the first hinge shaft 110a and the second kill plate 100b through the first hinge shaft 110a and the second hinge shaft 110b And can be hinged to the curved portion 10 of the ship.

At least a portion of the air pocket 200 may be attached to the inner surface of the kill plate 100. In this embodiment, by attaching the air pocket 200 to the kill plate 100, the rotation operation of the kill plate 100 is realized in conjunction with the volume change of the air pocket 200. However, the present invention is not limited to this, The return means may be mounted on the kill plate 100 to return the kill plate 100 to its original position even if air is recovered from the air pocket 200. [

Accordingly, when the air pocket 200 is inflated by the inflation of the air, the inflated air pocket 200 presses the first kill plate 100a and the second kill plate 100b toward the outside of the ship, The first kill plate 100a and the second kill plate 100b can spread at an angle to each other by the air pocket 200 to realize an overall "A" shaped bilge keel shape.

On the other hand, if the air pocket 200 is retracted by the recovery of air, the air pocket 200 contracted will pull the first kill plate 100a and the second kill plate 100b inward of the ship, The first kill plate 100a and the second kill plate 100b are minimally adhered to the curved portion 10 while minimizing the resistance of the keel plate 100 by the keel plate 100 while converging with each other.

The air pocket 200 is an air bag made of a stretchable material and allows the kill plate 100 to protrude from the curved portion 10 using the inflating force of air or to make the kill plate 100 as close as possible to the curved portion 10 have.

The air pocket 200 includes a convex portion 210 where a volume is changed by injection of air and an air nipple 220 for selectively injecting or recovering air of the air supply unit 300 into the convex portion 210 ). At this time, at least a part of the surface of the air pocket 200 is attached to the inner surface of the kill plate 100, and the air nipple 220 can be connected to the air line 330.

The air supply unit 300 may include an air tank 310, an air compressor 320, and an air line 330. The air tank 310 is a tank having a chamber in which air is stored, and the air in the air tank 310 can be compressed to a high pressure by the air compressor 320. The air compressor 320 can compress the air in the chamber to a high pressure and supply the compressed high-pressure air to the air pocket 200 through the air line 330. The air line 330 may provide a path for air to travel from the air tank 310 to the air pocket 200.

In the present embodiment, the air tank 310 and the air compressor 320 are described as being separated from each other. However, for convenience of explanation, the air tank 310 and the air compressor 320 are provided with one air supply Device.

3 is a configuration diagram showing a bilge keel of a floating structure according to a modification of the first embodiment.

3, in the bilge kill according to the modification of the first embodiment, the kill plate 100 may be installed in the curved portion 10 through the support block 400. As shown in FIG.

The support block 400 has a receiving space in which the kill plate 100 and the air pocket 200 are mounted and in a state where the kill plate 100 and the air pocket 200 are mounted, (Not shown). This takes into consideration the structural stability of the ship due to the reduction in the thickness of the ship when the keel plate 100 and the air pocket 200 are installed directly on the curved portion 10 of the ship.

The support block 400 may include a block body 410 installed in the curved portion 10 and a block groove portion 420 in which the air pocket 200 and the kill plate 100 are received. An air pocket 200 is provided at the center of the block trench 420 so as to penetrate the air nipple 220. The upper and lower ends of the block trench 420 are provided with a first kill plate 100a, (100b) can be hingedly connected.

Second Example

The bilge kill of the present invention described in this embodiment is the same as the first embodiment except that the first kill plate and the second kill plate are independently adjustable. Therefore, the same or corresponding components in FIGS. 1 and 2 will be given the same or similar reference numerals, and a description thereof will be omitted here.

FIG. 4 is a structural view showing a bilge keel of a floating structure according to a second embodiment of the present invention, and FIG. 5 is an operational state view showing a bilge keel of a floating structure according to a second embodiment of the present invention.

4 to 5, in the bilge keel of the floating structure according to the second embodiment of the present invention, by selectively rotating the first kill plate 100a and the second kill plate 100b , The kill plate 100 may be protruded in the form of an "I" at the curved portion 10 or may be protruded in the form of "A".

To this end, the air pocket may include a first air pocket 200a 'for supporting the first kill plate 100a' and a second air pocket 200b 'for supporting the second kill plate 100b' have. The first air pocket 200a 'is attached to the inner side of the first kill plate 100a' and the second air pocket 200b 'is attached to the inner side of the second kill plate 100b' .

The first air pocket 200a 'and the second air pocket 200b' can be selectively supplied with air through the control valve 500. Here, the control valve 500 may be located at a branch point of the air line 330 that branches into the first air pocket 200a 'and the second air pocket 200b' with a three-way valve .

The first kill plate 100a 'and the second kill plate 100b' are formed in the shape of "A" in the form of a curved portion 10 (10a ') in the case where the float body including the vessel is limitedly operated in an iced area, Only the first kill plate 100a 'can protrude vertically from the curved portion 10 in the form of an "I" when the floating body including the vessel is operated in the non-freezing region, The first kill plate 100a 'and the second kill plate 100b' can be brought into close contact with the curved portion 10 as much as possible.

In particular, the hook 230 may be formed at the distal end of the first kill plate 100a 'and the distal end of the second kill plate 100b'. Since the hook portion 230 is formed in the shape of a letter "A" bent toward the first air pocket 200a 'and the second air pocket 200b', it is possible to effectively suppress the lateral yawing motion.

In addition, the maximum rotation angle of the first kill plate 100a 'and the second kill plate 100b' may be limited by the stopper 510. The stopper 510 is provided on the first kill plate 100a 'and the second kill plate 100b' so as to prevent the first kill plate 100a 'and the second kill plate 100b' And may be installed perpendicularly to the outer curved portion 10.

As described above, according to the present invention, the keel plate for rolling restraint and reduction can be selectively taken in and out of the curved portion of the ship by using air pressure, thereby effectively suppressing the rolling fluctuation according to the sea condition, It is advantageous in that it can effectively reduce the resistance of the hull by the kill plate by operating the unfiltered sea at a low speed or by operating the ice plate in an iced area such as an ice rink.

Although the present invention has been described in detail with reference to the preferred embodiments thereof, it should be understood that the present invention is not limited to these embodiments, but should be construed as being broadly construed to cover the basic idea disclosed in the present specification. Those skilled in the art will be able to combine / modify the disclosed embodiments to effect a pattern of a shape that is not described, but this is also within the scope of the present invention. In addition, those skilled in the art can easily modify or modify the disclosed embodiments based on the present specification, and such changes and modifications are also within the scope of the present invention.

100: Kill plate 100a: First kill plate
100b: second kill plate 200: air pocket
210: convex portion 220: air nipple
300: air supply unit 310: air tank
320: air compressor 330: air line
400: support block 410: block body
420: block groove portion 500: control valve

Claims (7)

A kill plate rotatably installed on a curved portion of the floating structure;
An air pocket for projecting the kill plate from the curved portion by using an inflating force of air; And
And an air supply unit for supplying the air to the air pocket,
The air supply unit
An air tank in which the air is stored;
An air compressor for providing air in the air tank to the air pocket; And
And an air line that provides a path of air movement from the air tank to the air pocket. The method according to claim 1,
The air pocket
A convex portion whose surface is attached to the kill plate and which is expanded by the injection of the air; And
And an air nipple that receives the air from the air supply unit and injects the air into the convex portion, or recovers the air from the convex portion and returns the air to the air supply unit. The method according to claim 1,
The kill plate
And a first kill plate and a second kill plate disposed symmetrically with respect to the curved portion with the air pocket interposed therebetween. delete A kill plate rotatably installed on a curved portion of the floating structure;
An air pocket for projecting the kill plate from the curved portion by using an inflating force of air; And
And an air supply unit for supplying the air to the air pocket,
Wherein the kill plate is installed in the curved portion via a support block,
The support block
A block body installed at the curved portion; And
And a block groove formed on one surface of the block body to receive the air pocket and the kill plate. The method of claim 3,
The air pocket
A first air pocket for protruding the first kill plate from the curved portion; And
And a second air pocket for protruding the second kill plate from the curved portion,
Wherein the first air pocket and the second air pocket are connected to a control valve for selectively controlling the air supplied from the air supply unit. The method according to claim 6,
At the distal end of the first kill plate and the distal end of the second kill plate,
And a hook portion bent toward the first air pocket and the second air pocket is formed.

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