KR101302215B1 - Independent type storage tank for preventing sloshing and ship having the same - Google Patents

Abstract

Disclosed are a standalone storage tank for preventing sloshing and a vessel including the same. An independent storage tank for sloshing prevention according to an embodiment of the present invention, the barrier to form an inner space so that the liquid cargo is stored; A reinforcing member coupled to the inner side of the barrier to maintain the outer shape of the barrier; And a sloshing suppression device installed in the barrier to suppress sloshing of the liquid cargo. Here, the reinforcing member of the reinforcing member provided in the vertical direction of the wall portion of the barrier is formed with a guide groove along the longitudinal direction, the sloshing suppression device is connected to the guide groove in the vertical direction along the surface of the liquid cargo Can be moved.

Description

Stand-alone storage tanks for preventing sloshing and vessels containing them {INDEPENDENT TYPE STORAGE TANK FOR PREVENTING SLOSHING AND SHIP HAVING THE SAME}

The present invention relates to a stand-alone storage tank for preventing sloshing and a vessel comprising the same, and more particularly, to a stand-alone storage tank for preventing sloshing to suppress sloshing in the cargo hold and a vessel comprising the same.

In general, various types of ships are being manufactured to transport liquid cargo by sea. For example, in order to transfer liquid cargo such as liquefied natural gas (LNG), liquefied petroleum gas (LPG), and crude oil (crude oil), the hull is manufactured according to the characteristics of each cargo, and the cargo is transported at low temperature or high pressure. Special types of cargo hold have been applied to keep it sealed and warm.

One of the major loading conditions in the manufacture of such hulls and cargo holds is sloshing problem. Sloshing is a liquid cargo with a free surface that is stored rapidly while the liquid cargo receives kinetic energy due to the movement of the hull. As referring to the behavior of a fluid causing a strong impact on the inner wall of the space (ie cargo hold), such sloshing is considered from the beginning of the construction of the hull and cargo hold.

As such, the hull and cargo holds have been designed to minimize the sloshing caused by liquid cargo and to withstand the expected sloshing loads. It was necessary to accept conditional operating conditions with a limited loading capacity. Nevertheless, various problems with unexpected damage to cargo holds continue to arise due to the uncertainty of the sloshing load.

This problem of sloshing has to be solved equally in fuel tanks of space, aviation, and automobile fields as well as in ships. Unlike ships, in the case of spacecraft or aircraft, the fuel tank is caused by a sudden start Rather than merely reinforcing the structure of the fuel tank due to the sudden fluid behavior, it is more important to smooth the supply of the fuel. Therefore, the sloshing problem in the direction of controlling the flow of the liquid cargo- .

In order to solve such a sloshing problem, the applicant of the present invention discloses a plurality of buoyancy bodies having buoyancy to be suspended on the surface of a liquid in Korean Registered Patent No. 1043622 (open document 1). It has been proposed a sloshing suppression apparatus having a structure having a structure and a connecting means for connecting the buoyancy body and the adjacent buoyancy body to each other.

Prior Art 1: Korean Patent No. 1043622

Embodiments of the present invention, to effectively suppress the sloshing of the liquid cargo stored in the cargo hold of the ship, and to provide a stand-alone storage tank for preventing sloshing having a simple and stable connection structure and a ship comprising the same.

According to an aspect of the invention, the barrier to form an inner space so that the liquid cargo is stored; A reinforcing member coupled to the inner side of the barrier to maintain the outer shape of the barrier; And a sloshing suppression device installed in the barrier to suppress sloshing of the liquid cargo.

Here, the reinforcing member of the reinforcing member provided in the vertical direction of the wall portion of the barrier is formed with a guide groove along the longitudinal direction, the sloshing suppression device is connected to the guide groove in the vertical direction along the surface of the liquid cargo Can be moved.

The reinforcing member of the reinforcing member installed in the wall portion of the barrier in the vertical direction may have a columnar shape, and the guide groove may be formed on one side of the columnar reinforcing member facing the inner space.

The column shape may include a square pillar.

The pillar shape may include a pillar having a T shape in cross section.

The stand-alone storage tank for preventing sloshing may further include a guiding device which is fastened to the guide groove and connects the sloshing suppressing device to the reinforcing member.

The guiding device may include: a connecting member having one end connected to the sloshing suppressing device; And a guide part connected to the other end of the connection member and inserted into the guide groove to be slidable up and down on the reinforcing member.

The sloshing suppression apparatus includes a plurality of unit blocks; It may include a connecting device for connecting each of the plurality of unit blocks to each other, the connecting member may be connected to one end of the connecting device.

The connecting device includes a connecting belt installed on the unit block to cross the surface of the unit block; It may include a fastening member for connecting the ends of the adjacent pair of the connection belt to each other so that each of the plurality of unit blocks are connected to each other, one end of the connection member may be connected to the end of the connection belt.

The connection member may include any one of a wire, a chain, a cable, and a rope.

The guide part has a body portion (body) whose one end is coupled to the other end of the connecting member; And an arm coupled to the other end of the body and protruding in the direction of the outer circumferential surface of the other end, wherein the arm may be inserted into the guide groove to move up and down.

The guide part may further include a roller part rotatably coupled to an end of the protruding extended arm part, and the roller part may move up and down along the guide groove.

The guide part may further include a fork-shaped finger part formed at an end of the arm part.

The guide part may further include a roller part rotatably coupled to the finger part, and the roller part may move up and down along the guide groove.

The sloshing suppressing device comprises: a plurality of unit blocks covering a surface of the liquid cargo; And a connection device connecting the unit blocks to each other such that each of the plurality of unit blocks is connected to each other.

The plurality of unit blocks, a plurality of buoyancy blocks having a buoyancy to cover the surface of the liquid cargo; And a plurality of non-buoyancy blocks sinking in the liquid cargo and connected to the plurality of buoyancy blocks such that the plurality of buoyancy blocks sag below the surface of the water.

The buoyancy block, buoyancy body having a buoyancy to be suspended on the liquid cargo; And an open cell structure and a first foam member surrounding the buoyancy body.

The buoyancy block may further include a first cover surrounding the first foam member.

The buoyancy body may be formed of a foam material having a closed cell structure or a closed structure in which a predetermined gas is embedded therein.

The buoyancy body may have an elliptical shape in the longitudinal section.

The buoyancy body may have a circular cross section or a square shape.

When the cross section of the buoyancy body has a rectangular shape, the edge portion of the buoyancy body may have a curved shape.

The connecting device may include a connecting belt installed on the unit block to cross the surface of the unit block; And fastening members connecting the ends of the pair of adjacent connecting belts to each other so that each of the plurality of unit blocks is connected to each other.

The connecting belts are arranged in pairs and can cross each other.

The connecting belt may be installed on one side and the other side of the unit block, respectively.

The connecting belt may be formed of a pair of unit belts arranged side by side and spaced apart from each other.

A connecting ring may be formed at both ends of the connecting belt, and the fastening member may connect the pair of adjacent connecting rings to each other.

The connecting ring may be formed by joining a part of the connecting belt to the other part in a state in which the connecting belt is curved so that a part of the connecting belt faces the other part.

The fastening member may include a pair of unit fastening members having a curved shape such that both ends thereof are inserted into adjacent pairs of the connecting rings, and the pair of unit fastening members are disposed such that both ends thereof face each other. Can be fastened to each other.

The stand-alone storage tank for preventing sloshing may further include a cover member covering the fastening member to prevent contact between the fastening member and the barrier.

The fastening member may include a rope passing through the pair of adjacent coupling rings to connect the pair of adjacent coupling rings to each other.

The fastening member may be made of the same material as the connection belt.

The fastening member may include a thread for connecting the ends of the pair of adjacent connection belts to each other by sewing.

The buoyancy block may include a second foam member having an open cell structure to absorb the liquid cargo.

The non-buoyancy block may further include a second cover surrounding the second foam member to absorb shock when in contact with the cargo hold.

The non-buoyancy block may be disposed along the circumference of the plurality of buoyancy blocks such that the circumferential portion of the plurality of buoyancy blocks sags downward.

Each of the buoyancy block and the buoyancy block may be arranged to provide an opening for exposing a portion of the surface of the liquid cargo on the surface of the liquid cargo.

The opening may be formed of a plurality of unit openings which are spaced apart from each other.

According to another aspect of the present invention, there is provided a vessel comprising a hull and the above-described stand-alone storage tank for preventing sloshing installed in the hull.

According to an embodiment of the present invention, the sloshing suppression apparatus can be stably installed in the cargo hold through a simple and stable connection structure, and effectively suppress the sloshing of the liquid cargo stored in the cargo hold of the ship and at the same time, the liquid cargo flowing This can effectively suppress the drying of the sloshing suppressing device.

1 is a cross-sectional view showing a vessel provided with a stand-alone storage tank for preventing sloshing according to an embodiment of the present invention.
Figure 2 is a cross-sectional view as viewed from above on the basis of the line AA of Figure 1 ship having a stand-alone storage tank for preventing sloshing according to an embodiment of the present invention.
3 is a partially enlarged view of a portion B of FIG. 2 showing a guiding apparatus of an independent storage tank for preventing sloshing according to an embodiment of the present invention;
4 is a partially enlarged view of a portion B of FIG. 2 showing a modification of the guiding apparatus of the stand-alone storage tank for preventing sloshing according to an embodiment of the present invention.
5 is a view showing a modification of the reinforcing member of the stand-alone storage tank for preventing sloshing according to an embodiment of the present invention.
Figure 6 is an enlarged view of a portion of the stand-alone storage tank for preventing sloshing according to an embodiment of the present invention.
Figure 7 is a perspective view showing a buoyancy block of the sloshing suppression device of the stand-alone storage tank for preventing sloshing according to an embodiment of the present invention.
8 is a cutaway view showing the inside of the buoyancy block of the sloshing suppression apparatus of the stand-alone storage tank for preventing sloshing according to an embodiment of the present invention.
9 is a view showing a load action state for the sloshing suppression device of the stand-alone storage tank for preventing sloshing according to an embodiment of the present invention.
10 is a longitudinal sectional view showing a modification of the buoyancy body of the sloshing suppression apparatus of the stand-alone storage tank for preventing sloshing according to an embodiment of the present invention.
11 and 12 are cross-sectional views showing a modification of the buoyancy body of the sloshing suppression apparatus of the stand-alone storage tank for preventing sloshing according to an embodiment of the present invention.
Figure 13 is a cutaway view showing the interior of the buoyancy block of the sloshing suppression apparatus of the stand-alone storage tank for preventing sloshing according to an embodiment of the present invention.
14 is a front view showing a connection belt of the sloshing suppression apparatus of the stand-alone storage tank for preventing sloshing according to an embodiment of the present invention.
15 is a plan view showing a fastening member of the sloshing suppression apparatus of the stand-alone storage tank for preventing sloshing according to an embodiment of the present invention.
16 is a plan view showing a state in which a cover member is installed on the fastening member of the sloshing suppression apparatus of the stand-alone storage tank for preventing sloshing according to an embodiment of the present invention.
17 is a plan view showing a modification of the fastening member of the sloshing suppression apparatus of the stand-alone storage tank for preventing sloshing according to an embodiment of the present invention.
18 is a plan view showing a modification of the connection belt and the fastening member of the sloshing suppression apparatus of the stand-alone storage tank for preventing sloshing according to an embodiment of the present invention.
19 is a plan view showing a modification of the sloshing inhibiting device of the stand-alone storage tank for preventing sloshing according to an embodiment of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS The present invention is capable of various modifications and various embodiments, and specific embodiments are illustrated in the drawings and described in detail in the detailed description. It is to be understood, however, that the invention is not to be limited to the specific embodiments, but includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

Hereinafter, an embodiment of a stand-alone storage tank for preventing sloshing and a vessel including the same according to the present invention will be described in detail with reference to the accompanying drawings, and in the following description with reference to the accompanying drawings, the same or corresponding components are the same drawings. The numbering and duplicate description thereof will be omitted.

1 is a cross-sectional view showing a vessel 1000 provided with a stand-alone storage tank 100 for preventing sloshing according to an embodiment of the present invention. FIG. 2 is a cross-sectional view of the vessel 1000 having the stand-alone storage tank 100 for preventing sloshing, according to an embodiment of the present invention, as viewed from the A-A line of FIG. 1.

1 and 2, the vessel 1000 having the stand-alone storage tank 100 for preventing sloshing according to the present embodiment has a stand-alone storage tank 100 for preventing sloshing disposed in the longitudinal direction of the hull 1. The ship provided with) is comprised including the hull 1, the barrier 110, the reinforcement member 120, and the sloshing suppression apparatus 130. As shown in FIG.

The vessel in the present invention may include a floating offshore structure having a liquefied gas storage tank, such as LNG-FPSO (Floating Production Storage Offloading), as well as a conventional vessel that can be propelled with self-defense capability.

The hull 1 may consist of a double hull of an outer hull and an inner hull, and an independent storage tank for preventing sloshing for storing liquid cargo inside the inner hull of the hull 1. 100 is located.

As shown in FIG. 1, the stand-alone storage tank 100 for preventing sloshing according to the present embodiment is an independent type storage tank. The barrier 110, the reinforcing member 120, and the sloshing suppressing device 130 are provided. It is configured to include, and can be manufactured separately from the hull 1 and mounted in the hull (1).

According to the present embodiment, a slit-shaped guide groove 122 is formed in the reinforcing member 120 installed in the inner side of the barrier 110 forming the outer shape of the independent storage tank 100 along its length direction and is slit. By fastening the guiding device 150 of the sawing suppressor 130 to the guide groove 122, the sloshing suppressor 130 can be installed simply and stably in the independent storage tank 100.

In addition, by fastening the guiding device 150 of the sloshing suppressing device 130 to the guide groove 122, the sloshing of the liquid cargo 2 is effectively suppressed, and at the same time by the flowing liquid cargo 2 The sloshing suppressing device 130 composed of a plurality of unit blocks 131 (see FIG. 6) can be effectively suppressed from drying.

In addition, the guiding device 150 reinforces the sloshing suppressing device 130 so that the sloshing suppressing device 130 can move freely up and down along the free surface of the liquid cargo 2 stored in the barrier 110. Can be connected to the guide groove 122 of the (120).

In addition, since the sloshing suppressing device 130 is supported by the reinforcing member 120 of the barrier 110 by the guiding device 150, the sloshing suppressing device (in order to reduce the sloshing of the liquid cargo 2) ( It is not necessary to make the unit blocks 131 of 130 large and thick.

Hereinafter, each configuration of the stand-alone storage tank 100 for preventing sloshing according to the present embodiment will be described in more detail with reference to FIGS. 1 to 4.

3 is a partially enlarged view of a portion B of FIG. 2 schematically showing the guiding apparatus 150 of the stand-alone storage tank 100 for preventing sloshing according to the present embodiment, and FIG. 4 is a portion B of FIG. As a partial enlarged view, a schematic view of a modification of the guiding device 150 of the stand-alone storage tank 100 for preventing sloshing according to the present embodiment.

As shown in FIG. 1, the barrier 110 is an airtight container that forms an inner space 112 to store the liquid cargo 2 therein, and is spaced apart from the inner surface of the hull 1 of the vessel 1000. Can be.

For reference, the liquid cargo 2 in the present invention is a concept including all of liquefied natural gas (LNG), liquefied petroleum gas (LPG), crude oil, liquid raw materials, and other liquids.

For example, when the barrier 110 stores cryogenic liquefied gas, the barrier 110 may be formed of a metal material such as aluminum alloy, stainless steel, or Ni-9% steel to store the cryogenic liquid cargo 2. It may be made of.

As shown in FIG. 1, the reinforcing member 120 is a rod-shaped member installed inside the barrier 110 so that the outer shape of the barrier 110 is maintained. The reinforcing member 120 may be installed in the wall portion inside the barrier 110. have. However, the present invention is not limited thereto, and the reinforcing member 120 may be installed at an inner bottom portion, a ceiling portion, or the like of the barrier 110.

The reinforcing member 120 may have a cross-sectional shape of various shapes such as, for example, a quadrangle, a polygon, a T-shape, and the like based on the cross-sectional shape of the cross section (ie, the cross-section in the width direction).

The reinforcement member 120 installed in the wall portion of the barrier 110 is installed to extend in the vertical direction from the lower portion of the wall portion of the barrier 110 to the upper region. Thus, the reinforcement member 120 provided in the wall portion is slit along the length direction thereof. A guide groove 122 having a slit shape is formed.

As shown in FIG. 3, the guide groove 122 is a portion in which the elongated hole is formed, and the guide portion 154 of the guiding device 150 to be described later is inserted.

The guide groove 122 is a guide portion 154 of the guiding device 150 connected to the sloshing suppressor 130 so that the sloshing suppressor 130 can move up and down along the free surface of the liquid cargo 2. It serves to guide the path of movement.

According to the present embodiment, the reinforcing member 120 installed on the wall of the barrier 110 may have a square pillar shape. In this case, the guide groove 122 may be formed at one side of the four sides of the rectangular pillar-shaped reinforcing member 120 opposite (ie, facing) the inner space 112 of the barrier 110.

For reference, in the present invention, the rectangular pillar is a polygonal pillar in which each inner angle of the inner surface of the inner surface is 90 degrees, as well as at least one of an acute angle and an obtuse angle. The concept includes.

In this embodiment, a trapezoidal shape may be used as shown in FIGS. 2 and 3 as the reinforcing member 120 having a rectangular pillar shape.

As shown in FIG. 2, a plurality of such rectangular pillar-shaped reinforcing members 120 may be installed along the inner wall of the barrier 110, and a guiding apparatus connected to the sloshing suppressor 130 to be described later ( It may be arranged at regular intervals corresponding to each position of the guide portion 154 of 150.

On the other hand, Figure 5 is a view showing a modification 120 'of the reinforcing member 120 of the stand-alone storage tank 100 for preventing sloshing according to the present embodiment.

As shown in FIG. 5, the reinforcing member 120 ′ installed in the wall of the barrier 110 may be a reinforcing member 120 ′ having a T-shaped cross section based on the cross section in addition to the rectangular pillar. In this case, the guide portion 154 of the guiding apparatus 150 to be described later is inserted into the guide groove 122 'formed along the longitudinal direction of the reinforcing member 120' having a T-shaped cross section, thereby suppressing sloshing. 130 may be connected to the reinforcing member 120 '.

In this case, the reinforcing member having a T-shaped cross section, in order to prevent the guide portion 154 from being separated from the guide groove 122 'when moving along the guide groove 122' of the reinforcing member 120 '. A protrusion is formed at the end of 120 ′ to guide the shandong of the guide unit 154.

The sloshing suppressing device 130 is a device for suppressing a sloshing phenomenon caused by the flow of the liquid cargo 2 stored in the barrier 110. The detailed configurations thereof will be described with reference to FIGS. 6 to 19. It will be described in more detail in the following section.

The guiding device 150 is a device that is fastened to the guide groove 122 as described above to connect the sloshing suppression device 130 to the reinforcing member 120.

Specifically, as shown in FIG. 3, the guiding apparatus 150 is coupled to the connecting member 152 connected to the edge of the sloshing suppressing device 130 and the connecting member 152 and the reinforcing member 120. It may be configured to include a guide portion 154 inserted into the guide groove 122 so as to slide up and down.

The connecting member 152 is a member that connects two objects to each other, one end of which is connected to the edge of the sloshing suppression device 130 and the other end of which is connected to the guide part 154, thereby preventing the sloshing device ( 130 may serve to connect the guide groove 122 of the reinforcing member 120.

Specifically, one end of the connecting member 152 may be connected to the end of the connecting device 136 of the sloshing suppressing device 130 to be described later.

In the present embodiment, the connecting device 136 is a fastening member 138 for connecting the ends of the pair of connecting belts 137 adjacent to the connecting belt 137 installed to cross the surfaces of the plurality of unit blocks 131. In this case, one end of the connecting member 152 of the guiding device 150 may be connected to an end of the connecting belt 137.

In this case, the connection member 152 may be coupled to the end of the connection belt 137 by a fastening means such as a snap button, a zipper, or a Velcro tape, or may be coupled through sewing or the like.

In this way, one end of the connecting member 152 is coupled to the end of the connecting belt 137, the guiding device 150 can be connected to the sloshing suppression device 130.

As the connection member 152, for example, various connection means such as a wire, a chain, a cable, and a rope may be used. In the present embodiment, a wire may be used as the connection member 152. Can be.

As shown in FIG. 3, the guide part 154 is coupled to the body part 154a of the bar shape coupled to the other end of the connection member 152 and the body part 154a, and the body part ( It may be configured to include an arm (154b) protruding in the direction of the outer peripheral surface of the (154a).

At this time, the guide portion 154 is slidably coupled to the guide groove 122 so as not to be separated from the guide groove 122 when moving along the guide groove 122 of the reinforcing member 120.

As can be seen in Figure 3, the guide portion 154 consisting of the body portion 154a and the arm portion 154b may have a T shape as a whole when viewed in plan view.

At this time, the arm portion 154b may be inserted into the guide groove 122 to move up and down along the inner surface of the guide groove 122, which causes the connecting member 152 to be connected to the guide portion 154 as an intermediate medium. The singh suppression apparatus 130 can also move up and down along the free surface of the liquid cargo 2.

More specifically, the guide portion 154 may further include a roller portion 154c rotatably coupled to an end portion of the arm portion 154b protruding in the direction of the outer circumferential surface of the body portion 154a, and the roller The part 154c may move up and down along the guide groove 122.

The roller portion 154c has friction between the arm portion 154b and the guide groove 122 when the arm portion 154b is inserted into the guide groove 122 and moves up and down along the inner surface of the guide groove 122. The reinforcing member 120 is prevented from being damaged, and serves to help the arm part 154b to move freely along the inner surface of the guide groove 122.

The roller portion 154c may be formed in a wheel shape, and the wheel-shaped roller portion 154c may be rotatably coupled to both ends of the arm portion 154b coupled to the end of the body portion 154a, respectively.

The roller portion 154c also serves to hold the edge region of the sloshing suppressor 130 below the surface of the water so that the edge region of the sloshing suppressor 130 is not lifted up by the flowing liquid cargo 2. Can be. To this end, the roller portion 154c may be made of a heavy material inside the metal so as to sink below the surface of the water, the surface of the heavy material may be made of a structure surrounding the elastic material such as rubber or plastic resin, for example. have.

As another example, as shown in FIG. 4, the guide part 154 may further include a fork-shaped finger part 154d formed at both ends of the arm part 154b, in which case The roller portion 154c may be rotatably coupled to the finger portion 154d.

In this way, by installing the roller portion 154c in the fork-shaped finger portion 154d formed at both ends of the arm portion 154b, the reinforcing member while the guide portion 154 moves along the guide groove 122. The reinforcing member 120 and the guide part 154 may be prevented from colliding with the 120.

On the other hand, the guiding device 150 including the connecting member 152 and the guide portion 154, one surface and the other surface of the unit block 131 of the sloshing suppression device 130 to be described later (that is, the upper surface and The bottom surface of the bottom surface).

That is, the connecting member 152 of the guiding device 150 may be connected to the connecting device 136 formed on the upper and lower surfaces of the unit block 131, respectively. As such, the guiding device 150 is connected to the upper and lower surfaces of the unit block 131, respectively, to support the sloshing suppressing device 130, whereby the sloshing suppressing device 130 configured of the plurality of unit blocks 131 is provided. Can minimize the drying or folding of each other.

Meanwhile, as described above, the sloshing suppressing device 130 covers the free surface of the liquid cargo 2 and moves up and down along the surface thereof so that the sloshing suppressing device 130 is moved by the guiding device 150. It is connected to the guide groove (122).

Hereinafter, a specific configuration of the sloshing suppressing device 130 will be described with reference to FIGS. 6 to 19.

6 is an enlarged view of a portion of the stand-alone storage tank 100 for preventing sloshing according to the present embodiment.

As shown in FIG. 6, the sloshing suppressing device 130 includes a plurality of unit blocks 131 covering the surface of the liquid cargo 2, and the units so that each of the plurality of unit blocks 131 is connected to each other. And a connecting device 136 that connects each of the blocks 131 to each other.

In detail, the plurality of unit blocks 131 may include a plurality of buoyancy blocks 132 having buoyancy to cover the surface of the liquid cargo 2, and a plurality of buoyancy blocks 132 that sink to the liquid cargo 2. ) May include a plurality of non-buoyancy blocks 134 connected to the plurality of buoyancy blocks 132 to sag below the surface of the water.

As shown in FIGS. 2 and 6, a plurality of unit blocks 131 may be disposed on the liquid cargo 2 to cover the surface of the liquid cargo 2 stored in the barrier 110.

2 and 6, each unit block 131 is arranged in a lattice structure, and may be connected to each other by a connection device 136 which will be described later.

The unit block 131 suspended in the liquid cargo 2 is connected by the connecting device 136 to cover the surface of the liquid cargo 2, so that the vessel may be pitched, rolled, When moving in various directions such as yaw, sloshing by the liquid cargo 2 in the barrier 110 can be effectively suppressed.

7 is a perspective view schematically showing a buoyancy block 132 of the sloshing suppression device 130 of the stand-alone storage tank for preventing sloshing according to the present embodiment, Figure 8 is a stand-alone stand for preventing sloshing according to the present embodiment A cutaway view schematically illustrating the inside of the buoyancy block 132 of the sloshing suppression device 130 of the storage tank 100.

The buoyancy block 132 has a buoyancy to float on the liquid cargo (2) stored in the barrier 110, more specifically, as shown in Figure 8, having a buoyancy to float on the liquid cargo (2) The buoyancy body 132a, the first foam member 132b surrounding the buoyancy body 132a, and the first cover 132c surrounding the first foam member 132b may be formed.

As shown in FIGS. 7 and 8, the buoyancy block 132 may have a cube or cuboid shape having a length of 1.0 to 1.5 m in width, length, and height, depending on the size of the inner space of the barrier 110. The size or shape may vary.

Although not shown, the buoyancy block 132 may have, for example, a hexagonal column shape, and in this case, the buoyancy blocks 132 adjacent to each other may be disposed such that the sides of the hexagonal column face each other.

In the present embodiment, the buoyancy block 132 having a cube shape having the same height and height is shown as an example. However, since the sloshing suppressing device 130 composed of the plurality of unit blocks 131 is supported by the reinforcing member 120 by the guiding device 150, the plurality of unit blocks due to the flow of the liquid cargo 2 The risk of 131 curling or folding may be reduced. Thus, the buoyancy block 132 may be designed to be about half the height of the height. That is, it is possible to reduce the manufacturing costs of the buoyancy block 132 and the non-buoyancy block 134 while maintaining the sloshing suppression function has an advantage in terms of cost reduction, it is also possible to effectively reduce the maintenance, maintenance costs. This may be equally applied to the non-buoyancy block 134 which will be described later.

As shown in FIG. 8, the buoyancy body 132a may have a spherical shape, or may include an ellipsoid or other structures having various shapes. The buoyancy body 132a may have buoyancy to be suspended in the liquid cargo 2, and when the liquid cargo 2 is liquefied natural gas (LNG), it is possible to fill a gas in which the liquid phase conversion is not made even at cryogenic temperatures. It may be made of a hollow structure having a gas tight space.

The buoyancy body 132a may have buoyancy due to the structural characteristics as described above, and may also have buoyancy due to the properties of the material.

The buoyancy body 132a may be made of a material having a strength that does not change its shape due to buoyancy, and aluminum or aluminum to sufficiently perform its role even in a cryogenic state by a liquid cargo 2 such as LNG. Alloys or other alloys.

In addition, the buoyancy body 132a may be formed of a foam material having a closed cell structure. That is, the buoyancy body 132a does not have a hollow structure but the buoyancy body 132a may be made of a foam material having a closed cell structure.

Here, the closed cell structure is a structure in which liquid does not penetrate into the buoyancy body 132a and thus may have buoyancy. As the buoyancy body 132a is made of a foam material of the closed cell, thermal load and compression load Even if a crack is generated on the surface of the buoyancy body 132a, the liquid cargo 2 does not penetrate into the buoyancy body 132a, so that the buoyancy body can maintain the buoyancy stably.

In this case, the buoyancy body 132a may be formed of a polymer material including any one of a phenol resin, a melamine resin, and a synthetic resin thereof capable of maintaining elasticity even at cryogenic temperatures in which a liquid cargo 2 such as LNG maintains a liquid phase. Can be. These resins can maintain physical properties similar to room temperature even at a cryogenic temperature.

As such, the buoyancy body 132a maintains elasticity even in the cryogenic state, that is, brittleness does not increase even in the cryogenic temperature, and thus the buoyancy body 132a is broken due to the collision between the buoyancy blocks 132 adjacent to each other. It can also act as a shock absorber.

As shown in FIG. 8, the first foam member 132b surrounds the outer surface of the buoyancy body 132a and forms an external shape of the buoyancy block 132. In addition, although not shown, the first foam member 132b may have various pillar shapes, such as a hexagonal pillar shape.

The first foam member 132b may have an open cell structure to allow the liquid cargo 2 to penetrate into the first foam member 132b to more effectively prevent sloshing. Here, the open cell structure is a structure in which a plurality of holes penetrating the inside and the outside of the first foam member 132b is formed, and the surface area of the first foam member 132b can be maximized. The absorption of the liquid cargo 2 can be promoted.

As such, by forming the first foam member 132b in an open cell structure so that the liquid cargo 2 can penetrate into the first foam member 132b, the weight of the buoyancy block 132 increases, thereby causing buoyancy. The block 132 may float with a portion submerged on the surface of the liquid cargo 2 and may cover the free surface of the liquid cargo 2. Accordingly, sloshing (ie, fluid flow) generated by the liquid cargo 2 in the barrier 110 can be more effectively suppressed.

The first foam member 132b may be made of, for example, synthetic resin. In particular, the first foam member 132b is a phenol resin and melamine resin that can maintain elasticity to allow absorption of the liquid cargo 2 even at cryogenic temperatures where the cryogenic liquid cargo 2 such as LNG maintains a liquid phase. And it may be formed of a polymer material containing any one of these synthetic resins.

As shown in FIG. 8, the first cover 132c surrounds the first foam member 132b, thereby preventing the first foam member 132b from being broken by an external force, and partially damaging agent. It is possible to prevent the liquid cargo 2 from being contaminated due to debris of the first foam member 132b.

The first cover 132c may be made of a material that may have the same durability as at room temperature even at cryogenic temperatures. For example, the first cover 132c may be made of polyacrylate fiber.

On the other hand, Figure 9 is a view showing a load action state for the sloshing suppression device 130 of the stand-alone storage tank 100 for preventing sloshing according to the present embodiment.

As shown in FIG. 9, when the liquid cargo 2 is filled in the barrier 110 and is in a full load state, the unit block 131 of the sloshing suppressing device 130 is moved by the flow of the liquid cargo 2. The compression load F1 by the liquid cargo 2 may be applied, and the concentrated load is applied to the first foam member 132b and the buoyancy body 132a of the buoyancy block 132 by such a compression load F1. Can be operated. In addition, the buoyancy body 132a or the first foam member 132b may be damaged by the action of the concentrated load.

On the contrary, as shown in FIGS. 10 to 12, structural stability of the buoyancy block 132 may be improved by changing the shape or material of the buoyancy body 132a.

10 is a longitudinal sectional view showing a modification of the buoyancy body 132a of the sloshing suppression device 130 of the stand-alone storage tank 100 for preventing sloshing according to the present embodiment, and FIGS. It is a cross-sectional view which shows the modification of the buoyancy body 132a of the sloshing suppression apparatus 130 of the independent storage tank 100 for sloshing prevention in accordance with an example.

As shown in FIG. 10, the buoyancy body 132a may be formed such that its longitudinal section has an elliptical shape. As described above, the buoyancy body 132a is configured to reduce the vertical height of the buoyancy body 132a so that the longitudinal section has an elliptical shape, so that when the load F2 is applied to the buoyancy block 132 as shown in FIG. 10. The concentrated load applied to the first foam member 132b by the sieve 132a can be minimized.

In this case, the cross section of the buoyancy body 132a may have a circular shape as shown in FIG. 11, or may have a rectangular shape as shown in FIG. 12.

And, as shown in FIG. 12, when the cross section of the buoyancy body 132a has a rectangular shape as a whole, the edge portion of the buoyancy body 132a may have a curved shape. As such, the edge of the buoyancy body 132a has a curved shape, thereby preventing damage to the first foam member 132b which may be generated by the edge of the buoyancy body 132a.

Meanwhile, the non-buoyancy block 134 may be disposed in plurality on the liquid cargo 2 along the circumference of the plurality of buoyancy blocks 132 such that the circumferential portion of the plurality of buoyancy blocks 132 sags downward.

These buoyancy blocks 134 may be connected to each other with the adjacent buoyancy block 132 or the adjacent buoyancy block 134 by the connection device 136 to be described later.

Hereinafter, a specific configuration of the buoyancy block 134 will be described with reference to FIG. 13.

13 is a cutaway view showing the inside of the buoyancy block 134 of the sloshing suppression device 130 of the stand-alone storage tank 100 for preventing sloshing according to the present embodiment.

The buoyancy block 134 is a member without buoyancy unlike the buoyancy block 132, and is disposed along a circumference of the plurality of buoyancy blocks 132 (that is, a portion contacting the inner wall of the barrier 110), thereby providing a liquid cargo ( 2) The plurality of buoyancy blocks 132 floating on serves to hold down the plurality of buoyancy blocks 132 when curled or folded due to sloshing.

Specifically, as shown in FIG. 13, the non-buoyancy block 134 may include a second foam member 134a having an open cell structure to absorb the liquid cargo 2, and an agent surrounding the second foam member 134a. It may be configured to include two covers (134b).

The buoyancy block 134 may have a shape corresponding to the buoyancy block 132, for example, may have a cube or a cuboid shape, and may vary in size or shape according to the size of the inner space of the barrier 110. can be changed. In this case, although not shown, the non-buoyancy block 134 may have various pillar shapes, such as a hexagonal pillar shape.

As shown in FIG. 13, the second foam member 134a constitutes an external shape of the non-buoyancy block 134, and the liquid cargo 2 may allow the non-buoyancy block 134 to sink into the liquid cargo 2. It may have an open cell structure capable of absorbing.

Thus, by forming the second foam member 134a in an open cell structure so that the liquid cargo 2 can penetrate into the second foam member 134a, the non-buoyancy block 134 loses buoyancy and goes below the water surface. The seated portion of the plurality of buoyancy blocks 132 are struck below the water surface by the plurality of non-buoyancy blocks 134 connected along the circumferences of the plurality of buoyancy blocks 132.

Thus, when the plurality of buoyancy blocks 132 are rolled up or folded by sloshing, the liquid cargo in the barrier 110 is caused by the non-buoyancy block 134 pulling these plurality of buoyancy blocks 132 down. The sloshing generated by (2) can be suppressed more effectively.

In addition, since the non-buoyancy block 134 does not need the buoyancy body 132a for buoyancy as compared to the buoyancy block 132, the second foam member 134a has the liquid cargo 2 as much as the space where the buoyancy body 132a is missing. Can absorb more. Therefore, the weight of the non-buoyancy block 134 is further increased to more effectively suppress the flow of the liquid cargo (2).

In the present embodiment, the second foam member 134a may be made of the same material as the first foam member 132b described above, and a detailed description thereof will be omitted.

As shown in FIG. 13, the second cover 134b surrounds the second foam member 134a, thereby preventing the second foam member 134a from being broken by an external force and partially damaging agent. It is possible to prevent the liquid cargo 2 from being contaminated due to debris of the two foam members 134a.

In addition, the second cover 134b may cover the second foam member 134a to absorb the shock when the non-buoyancy block 134 contacts the inner wall of the barrier 110.

In the present embodiment, the second cover 134b may be made of the same material as that of the first cover 132c described above, and a detailed description thereof will be omitted.

According to this present embodiment, sloshing or fluid flow of the liquid cargo 2 by a plurality of buoyancy blocks 132 suspended on the liquid cargo 2 stored in the barrier 110 of the ship. In this way, the plurality of buoyancy blocks 132 may be dried or folded by the plurality of non-buoyancy blocks 134 disposed along the circumference of the plurality of buoyancy blocks 132.

Although the embodiment illustrates a form in which a plurality of non-buoyancy blocks 134 are connected along a circumference of a plurality of buoyancy blocks 132 connected in a lattice structure, for example, the present invention is not limited thereto. Various forms such as the non-buoyancy block 134 may be disposed between the buoyancy blocks 132.

As such, by arranging the non-buoyancy block 134 between the plurality of buoyancy blocks 132 without configuring all the unit blocks 131 of the sloshing suppressing device 130 with the buoyancy buoyancy block 132, The sloshing suppressor 130 may increase the space for absorbing the liquid cargo 2 as much as possible, and maximizes the sloshing suppression effect due to the weight of the liquid cargo 2 absorbed in the non-buoyancy block 134. can do.

Meanwhile, as described above, each of the unit blocks 131 including the plurality of buoyancy blocks 132 and the non-buoyancy block 134 may be simply and stably connected by the connection device 136.

Hereinafter, a detailed configuration of the connection device 136 of the sloshing suppression device 130 according to the present embodiment will be described with reference to FIGS. 14 to 18.

14 is a front view showing a connection belt 137 of the sloshing suppression device 130 of the stand-alone storage tank for preventing sloshing according to the present embodiment, Figure 15 is a stand-alone storage tank for preventing sloshing according to the present embodiment. It is a top view which shows the fastening member 138 of the sloshing suppression apparatus 130 of FIG. 100. FIG. 16 is a fastening member of the sloshing suppression apparatus 130 of the standalone storage tank 100 for anti-sloshing prevention which concerns on this embodiment. It is a top view which shows the state in which the cover member 140 was installed on 138.

As illustrated in FIGS. 14 and 15, the connection device 136 is a device that connects each of the unit blocks 131 to each other such that each of the plurality of unit blocks 131 is connected to each other.

That is, the connection device 136 may connect each of the unit blocks 131 arranged adjacent to each other.

In detail, the connection device 136 may include a connection belt 137 installed on each of the unit blocks 131 so as to cross the surface of each of the unit blocks 131, and each of the unit blocks 131 to be connected to each other. And a fastening member 138 connecting the ends of the adjacent pair of connecting belts 137 to each other.

For reference, in the present invention, the connecting belt 137 is configured to be installed in each of the unit blocks 131 so that each of the unit blocks 131 can be connected to each other, hereinafter buoyancy block 132 to help the understanding of the description ) And a unit block 131, which refers to both the buoyancy block 134 will be used.

As shown in FIGS. 14 to 18, the connecting belt 137 may be installed on the surface of the unit block 131 to cross the surface of the unit block 131. More specifically, the connection belt 137 may be installed on one side and the other side of the unit block 131, respectively, and may be installed to pass through the center of one side and the other side of the unit block 131.

The connecting belt 137 is not simply installed at the end of the unit block 131 or at a localized part of the unit block 131, but as described above, the connecting belt 137 is installed to cross the surface of the unit block 131 so that the unit block ( By maximizing the adhesion area between the 131 and the connection belt 137, the load acting on the interface between the connection belt 137 and the unit block 131 by the flow of the unit block 131 is the surface of the unit block 131. It can be distributed evenly, and as a result, the structural stability of the sloshing suppression device 130 can be significantly improved.

The connecting belt 137 may be made of the same material as the first cover 132c and the second cover 134b of the unit block 131, and the first cover of the unit block 131 may be formed by sewing or the like. 132c and the second cover 134b, respectively. In addition, the connection belt 137 may be installed on the surface of the unit block 131 using an adhesive or the like.

In this case, the connecting belts 137 may be arranged in pairs such that the pair of connecting belts 137 intersect with each other, as shown in FIG. 6, and the crossed pair of connecting belts 137 is illustrated in FIG. 6. As illustrated in FIG. 6, the unit blocks 131 may be installed on one side and the other side of the unit block 131.

As the pair of connection belts 137 are installed to cross each other in this way, the plurality of unit blocks 131 arranged in a lattice structure as shown in FIG. 6 may be effectively connected in the transverse and longitudinal directions.

Meanwhile, as shown in FIG. 15, the connecting belt 137 may be formed of a pair of unit belts 137a, and the unit belts 137a may be disposed to be parallel to each other and spaced apart from each other by a predetermined interval. Can be.

As such, the pair of unit belts 137a are spaced apart from each other, thereby providing a space in which the fastening member 138 to be described later can be more easily coupled. This will be described in more detail in the following description of the fastening member 138.

On the other hand, both ends of the connecting belt 137, as shown in Figure 14 to 17, the connecting ring 137b may be formed. As illustrated in FIG. 15, as the fastening member 138 is fastened to the adjacent connecting ring 137b, adjacent unit blocks 131 may be connected to each other.

In this case, as shown in FIGS. 14 and 15, the connecting ring 137b is a part of the connecting belt 137 in a state in which the connecting belt 137 is bent so that a part of the connecting belt 137 faces the other part. May be formed by joining with another part.

That is, as shown in FIGS. 14 and 15, a part of the connection belt 137 is joined to each other by sewing or the like in a state in which the connection belt 137 is overlapped so as to face the other part. In this way, the connecting ring 137b may be formed at the end of the connecting belt 137 without using an additional additional member.

As illustrated in FIG. 15, the fastening member 138 may connect a pair of adjacent connecting rings 137b to each other such that adjacent unit blocks 131 are connected to each other. As shown in FIG. 15, the fastening member 138 may include a pair of unit fastening members 138a disposed to be symmetrical with each other.

That is, as shown in FIG. 15, the fastening member 138 may include a pair of unit fastening members 138a having a curved shape so that both ends thereof can be inserted into adjacent pairs of connecting rings 137b, respectively. The pair of unit fastening members 138a may be disposed so that both ends thereof face each other, and may be fastened to each other by means such as bolts 138b and the like.

More specifically, the pair of unit fastening members 138a may have a 'U' shape, as shown in FIG. 15, and both ends of the pair of unit fastening members 138a are connected to a pair of adjacent ones. 15 may be inserted into the ring 137b from top to bottom and from bottom to top, respectively. At this time, since Fig. 15 is a plan view viewed from the top, it is apparent that the insertion of the pair of unit fastening members 138a may not be made from the top to the bottom or from the bottom to the top.

As such, both ends of the pair of unit fastening members 138a respectively inserted into the adjacent pair of connecting rings 137b are spaced apart from each other in the space between the pair of unit belts 137a as shown in FIG. 15. The pair of unit fastening members 138a can be easily fastened by a bolt 138b or the like in such a space.

As shown in FIG. 16, the cover member 140 may cover the fastening member 138 to prevent contact between the fastening member 138 and the barrier 110. The fastening member 138 may be made of aluminum, SUS, or other composite materials to be used at cryogenic temperatures. By installing the cover member 140 on the fastening member 138, the fastening member 138 collides with the inner wall of the barrier 110 according to the flow of the sloshing suppressing device 130 to damage the barrier 110. Can be prevented.

17 and 18, a rope or thread may be used as the fastening member 138 in addition to the pair of unit fastening members 138a described above.

17 is a plan view showing a modification of the fastening member 138 of the sloshing suppression device 130 of the stand-alone storage tank 100 for preventing sloshing according to the present embodiment.

As shown in FIG. 17, a fastening member 138 may use a rope that connects the adjacent pair of connecting rings 137b to each other through a pair of adjacent connecting rings 137b.

That is, the fastening member 138 may pass through a pair of adjacent coupling rings 137b, and then both ends thereof may be coupled by various coupling means to connect the adjacent pair of coupling rings 137b with each other. The rope may be made of a material such as polyacrylate fiber in the same way as the connection belt 137.

As such, by using the rope having the same material as the connecting belt 137 as the fastening member 138, the fastening member 138 is formed as a barrier according to the flow of the sloshing suppressing device 130 without a separate cover member 140. Damage to the barrier 110 by hitting the inner wall of the 110 can be prevented in advance.

18 is a plan view showing a modification of the connecting belt 137 and the fastening member 138 of the sloshing suppression device 130 of the stand-alone storage tank 100 for preventing sloshing according to the present embodiment.

As shown in FIG. 18, as the fastening member 138, threads capable of connecting the ends of a pair of adjacent connection belts 137 to each other by sewing using a portable sewing machine or the like may be used.

In this case, separate connecting rings 137b are not formed at both ends of the connecting belt 137, and instead, both ends of the connecting belt 137 may extend to protrude to the outside of the unit block 131. As described above, ends of the connection belt 137 extending to the outside of the unit block 131 may be superimposed on one another and then connected to each other by the fastening member 138 according to a sewing method.

As such, each of the unit blocks 131 including the plurality of buoyancy blocks 132 and the plurality of non-buoyancy blocks 134 are connected to each other by the connecting device 136, thereby sloshing covering the surface of the liquid cargo 2. Suppression device 130 may be implemented.

Although not shown, a gap may be formed between the unit blocks 131 constituting the sloshing suppressing device 130 so that an operator can pass when necessary.

To this end, the connecting device 136 connecting the unit blocks 131 to each other may be installed to extend in accordance with the width of the gap.

On the other hand, Figure 19 is a plan view showing a modification of the sloshing suppression device 130 of the stand-alone storage tank 100 for preventing sloshing according to the present embodiment.

As shown in FIG. 19, by modifying the arrangement of the buoyancy block 132 and the non-buoyancy block 134, the buoyancy block 132 and the buoyancy block 134 have some regions of the surface of the liquid cargo 2. It can also cover bays.

Specifically, each of the buoyancy block 132 and the non-buoyancy block 134 is a first opening that exposes a portion of the surface of the liquid cargo 2 on the surface of the liquid cargo 2, as shown in FIG. 19. The unit 102 may be arranged to be provided.

As such, the buoyancy block 132 and the non-buoyancy block 134 are arranged not to be disposed on the entire surface of the liquid cargo 2 but to cover only a part of the surface, thereby maintaining the sloshing suppressing function while maintaining the buoyancy block 132. The manufacturing cost of the buoyancy block 134 can be reduced, which is advantageous in terms of cost reduction, and maintenance and repair costs can also be effectively reduced.

The first opening 102 can be located in the central region of the surface of the liquid cargo 2 as shown in FIG. 19.

The sloshing phenomenon may mainly occur in an area adjacent to the inner wall of the barrier 110. Accordingly, the buoyancy block 132 and the non-buoyancy block 134 are thus used to cover the edge of the surface of the liquid cargo 2 adjacent to the inner wall of the barrier 110 and the central area of the surface of the liquid cargo 2 is By being exposed by the first opening 102, the cost required for the installation of the sloshing suppressing device 130 can be effectively reduced while maintaining the sloshing suppressing function.

Although not shown, the first opening 102 may have various shapes. For example, the sloshing suppressing device 130 may be manufactured so that the first opening 102 having various shapes such as a rectangular shape, a circular shape, an elliptic shape, and the like is provided in the central region of the surface of the liquid cargo 2. .

Here, the circle shape and the ellipse shape mean a geometrically perfect circle and an ellipse shape, and in addition, when the circle or ellipse is a geometrically perfect curve, the overall shape is a shape corresponding to the circle or ellipse. Means comprehensively.

In addition, as shown in FIG. 19, the first opening 102 may include a plurality of unit openings 104 disposed to be spaced apart from each other. That is, in the case of the first opening portion 102 illustrated in FIG. 19, the plurality of unit opening portions 104 may be formed, and the buoyancy block 132 or the non-buoyancy block may be formed between the plurality of unit openings 104. Each of the 134s may be spaced apart from each other by a predetermined interval.

On the other hand, as shown in FIGS. 2 and 19, on the surface of the liquid cargo 2, in addition to the above-described first opening 102, a second opening for exposing a part of the edge region of the surface of the liquid cargo 2 is exposed. 106 may additionally be provided.

That is, each of the buoyancy block 132 and the non-buoyancy block 134 is further provided with a second opening 106 on the surface of the liquid cargo 2 to expose some of the edge region of the surface of the liquid cargo 2. Can be arranged. The second opening 106 may be formed for installation of equipment such as a pump tower in the LNG barrier 110.

In this way, the buoyancy block 132 and the non-buoyancy block 134 are disposed so that a part of the edge region is exposed together with the central region of the surface of the liquid cargo 2, thereby making the buoyancy block 132 and the buoyancy block 134. The cost, maintenance and repair costs can be reduced more effectively.

The second opening 106 may be positioned such that a portion of the edge region of the surface of the liquid cargo 2, that is, the region adjacent to the side wall of the cargo hold, is exposed as shown in FIG. 19. .

Although not shown, there may be a plurality of second openings 106, the plurality of second openings 106 being disposed on a central area of the surface of the liquid cargo 2. It may be arranged to be symmetric with respect to.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit of the invention as set forth in the appended claims. The present invention can be variously modified and changed by those skilled in the art, and it is also within the scope of the present invention.

1000: ship
1: hull 2: liquid cargo
100: stand-alone storage tank for preventing sloshing 102: first opening
104: unit opening 106: second opening
110: barrier 112: interior space
120, 120 ': reinforcing member 122, 122': guide groove
130: sloshing suppressor 131: unit block
132: buoyancy block 132a: buoyancy body
132b: first foam member 132c: first cover
134: buoyancy block 134a: second foam member
134b: second cover 136: connecting device
137: connecting belt 137a: unit belt
137b: connecting ring 138: fastening member
138a: unit fastening member 138b: bolt
140: cover member 150: guiding device
152: connecting member 154: guide portion
154a: torso 154b: torso
154c: roller portion 154d: finger portion

Claims (38)

A barrier forming an inner space to store the liquid cargo;
A reinforcing member coupled to the inner side of the barrier to maintain the outer shape of the barrier; And
A sloshing suppression device installed in the barrier to suppress sloshing of the liquid cargo,
Reinforcing members installed in the vertical direction of the wall portion of the barrier of the reinforcing member is formed with a guide groove along the longitudinal direction,
The sloshing suppression device is connected to the guide groove is moved in the vertical direction along the surface of the liquid cargo,
The sloshing suppression device,
A plurality of unit blocks covering a surface of the liquid cargo; And
A connecting device connecting the unit blocks to each other such that each of the plurality of unit blocks is connected to each other;
The plurality of unit blocks,
A plurality of buoyancy blocks having buoyancy to cover the surface of the liquid cargo; And
A plurality of non-buoyancy blocks submerged in the liquid cargo and connected to the plurality of buoyancy blocks such that the plurality of buoyancy blocks sag below the water surface,
And the buoyancy block is disposed along the circumference of the plurality of buoyancy blocks such that the circumferential portions of the plurality of buoyancy blocks sag downward.
The method of claim 1,
The reinforcing member of the reinforcing member installed in the vertical direction in the wall portion of the barrier has a columnar shape,
The guide groove is formed on one side of the column-shaped reinforcing member side facing the inner space, independent storage tank for preventing sloshing.
The method of claim 2,
The columnar shape includes a square pillar, anti-slashing independent storage tank.
The method of claim 2,
The pillar shape is a stand-alone storage tank for sloshing prevention, comprising a pillar having a T-shaped cross section.
The method of claim 1,
And a guiding device fastened to the guide groove to connect the sloshing suppressing device to the reinforcing member.
The method of claim 5,
The guiding device,
A connecting member having one end connected to the sloshing suppressing device; And
And a guide part connected to the other end of the connection member and inserted into the guide groove so as to be slidable up and down with the reinforcing member.
The method according to claim 6,
The sloshing suppression device,
A plurality of unit blocks;
A connection device connecting each of the plurality of unit blocks to each other;
The connecting member includes:
An endless storage tank for sloshing prevention, characterized in that one end is connected to an end of the connecting device.
The method of claim 7, wherein
The connecting device comprises:
A connecting belt installed on the unit block to cross the surface of the unit block;
A fastening member connecting the ends of the pair of adjacent connecting belts to each other such that each of the plurality of unit blocks is connected to each other,
The connecting member includes:
An endless storage tank for sloshing prevention, characterized in that one end is connected to an end of the connecting belt.
The method according to claim 6,
The connecting member includes:
An independent storage tank for anti-sloshing comprising any one of wire, chain, cable and rope.
The method according to claim 6,
The guide unit,
A body portion having one end coupled to the other end of the connection member; And
It is coupled to the other end of the body portion, and includes an arm (arm) protruding in the direction of the outer peripheral surface of the other end,
The arm is inserted into the guide groove, characterized in that for moving up and down, independent storage tank for sloshing.
The method of claim 10,
The guide unit,
Further comprising a roller rotatably coupled to the end of the protruding extended arm,
The roller unit is characterized in that it moves up and down along the guide groove, independent storage tank for sloshing prevention.
The method of claim 10,
The guide unit,
And a fork-shaped finger part formed at an end of the arm portion.
The method of claim 12,
The guide unit,
Further comprising a roller rotatably coupled to the finger portion,
The roller unit is characterized in that it moves up and down along the guide groove, independent storage tank for sloshing prevention.
delete delete The method of claim 1,
The buoyancy block comprises:
A buoyant body having buoyancy to float on the liquid body; And
An independent storage tank for preventing sloshing having an open cell structure and including a first foam member surrounding the buoyancy body.
17. The method of claim 16,
The buoyancy block comprises:
And a first cover surrounding the first foam member.
17. The method of claim 16,
The buoyancy body is a sealed structure in which a predetermined gas is embedded therein, or an independent storage tank for sloshing prevention, characterized in that the foam material having a closed cell (closed cell) structure.
17. The method of claim 16,
The buoyancy body is characterized in that the longitudinal section has an elliptical shape, independent storage tank for sloshing prevention.
17. The method of claim 16,
The buoyancy body is characterized in that the cross section has a circular or square shape, sloshing independent storage tank.
21. The method of claim 20,
When the cross section of the buoyancy body has a rectangular shape,
The edge portion of the buoyancy body is characterized in that it has a curved shape, independent storage tank for sloshing prevention.
The method of claim 1,
The connecting device comprises:
A connection belt installed on the unit block to cross the surface of the unit block; And
And a fastening member connecting the ends of the pair of adjacent connecting belts to each other such that each of the plurality of unit blocks is connected to each other.
The method of claim 22,
The connecting belt is disposed in pairs and characterized in that the crossover each other, an independent storage tank for sloshing prevention.
The method of claim 22,
The connecting belt is installed on one side and the other side of the unit block, independent storage tank for sloshing prevention.
The method of claim 22,
The connecting belt
An independent storage tank for sloshing prevention, characterized in that formed of a pair of unit belts arranged side by side and spaced apart from each other.
The method of claim 22,
Both ends of the connecting belt is formed with a connecting ring,
The fastening member is an independent storage tank for sloshing prevention, characterized in that for connecting the adjacent pair of the connecting ring to each other.
The method of claim 26,
And the link ring is formed by joining a portion of the link belt to the other portion while the link belt is bent such that a portion of the link belt faces another portion.
25. The method of claim 24,
The fastening member may include a pair of unit fastening members each having a curved shape such that both ends thereof can be inserted into the adjacent pair of connecting rings,
The pair of unit fastening members, each end is disposed so as to face each other is fastened, independent storage tank for sloshing prevention.
29. The method of claim 28,
And a cover member for covering the fastening member so as to prevent contact between the fastening member and the barrier.
The method of claim 26,
The fastening member includes a rope for connecting the adjacent pair of the connecting ring to each other through the adjacent pair of the connecting ring (rope), standalone storage tank for preventing sloshing.
31. The method of claim 30,
The fastening member is made of the same material as the connection belt, standalone storage tank for preventing sloshing.
The method of claim 22,
The fastening member includes a thread for connecting the ends of the adjacent pair of the connection belt to each other by sewing, standalone storage tank for preventing sloshing.
The method of claim 1,
Wherein the no-
And a second foam member having an open cell structure to absorb the liquid cargo.
34. The method of claim 33,
Wherein the no-
And a second cover surrounding the second foam member to absorb shock when in contact with the barrier.
delete The method of claim 1,
Each of the buoyancy block and the non-buoyancy block is arranged to be provided with an opening for exposing a portion of the surface of the liquid cargo on the surface of the liquid cargo, independent storage tank for sloshing.
37. The method of claim 36,
The opening is a stand-alone storage tank for sloshing prevention, characterized in that consisting of a plurality of unit openings are spaced apart from each other.
A hull;
A ship comprising an independent storage tank for preventing sloshing according to any one of claims 1 to 13, 16 to 34, 36 to 37 installed in the hull.

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