JP2000054355A - Underwater diffusion prevention apparatus against polluted water - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent the climbing of polluted water over the upper side of a coupling portion for diffusion prevention units by coupling means even though two neighboring diffusion prevention units have been strongly coupled together by the coupling means. SOLUTION: This apparatus has a diffusion prevention unit 6 which is capable of dividing underwater space into the right and left sections and coupling means 7 capable of coupling together a plurality of diffusion prevention units 6, 6 arranged in back and forth directions. The coupling means 7 is equipped with a long-sized main floating body 13 floated on the water surface 12, and a curtain 16 extended underwater with the upper end edge coupled to the main floating body 13. Each coupling means 7 is equipped with a coupling buoy 19 arranged near both the end portions and floated on the water surface 12 facing each other of each main floating body 13 in neighboring dispersion prevention units 6, 6 and a coupling device 20 for connecting end portions of each main floating body 19.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to pollution in water which prevents pollution water generated in a water area such as a landfill or a dredging area of a coast or a river from diffusing into another clean water area adjacent thereto. The present invention relates to a device for preventing water diffusion.

[0002]

2. Description of the Related Art Conventionally, there is a device for preventing the diffusion of polluted water in water as follows.

[0003] That is, the above-mentioned device is installed in a landfill on the shore, and this device includes a diffusion prevention unit that extends in one horizontal direction, the front-rear direction and the vertical direction, and is capable of dividing water into left and right. Connecting means for connecting the plurality of diffusion prevention units arranged in a row in the front-rear direction,
A rope or the like having one end connected to the main body floating body and the other end moored to an anchor at the bottom of the water is provided.

In the above case, each of the diffusion preventing units is formed to have a predetermined length for convenience in production and transportation at a factory. The connecting means includes a long main body floating body extending in the front-rear direction along the water surface, and a curtain extending in the front-rear direction and up-down direction in the water and having an upper edge connected to the main body floating body. And

In order to easily and surely visually recognize the installation positions of the respective diffusion prevention units on the water surface at night, a plurality of lampposts are provided on the water surface along the main body floating bodies arranged in a row. Each of these lampposts is floated on the water surface by a lamppost floating on the water surface.

[0006] Each of the pollution prevention units described above divides the water area where the polluted water is generated in the landfill and the other water area into right and left, so that the polluted water generated in the water area where the polluted water is generated is purified by the other clean water. It is prevented from diffusing with the water flow in the water area.

[0007]

However, the above-mentioned conventional technology has the following problems.

First, each of the diffusion preventing units may receive a large water pressure due to a water flow or a wave, and accordingly, a large load is applied to the connecting means connecting these diffusion preventing units to each other. is there.

In order to cope with the above-mentioned load, sufficient strength is secured in the connecting means. However, in order to secure sufficient strength, the connecting means becomes heavy correspondingly, The connecting part of both diffusion prevention units by this connecting means will sink deeper into the water,
Therefore, there is a problem that the polluted water from the water area where the polluted water is generated gets over the upper side of the connecting portion and easily diffuses into the above-mentioned clean water area.

Secondly, in the above-mentioned prior art, one end of a cable body is connected to a main body floating body of the diffusion prevention unit, and the cable is used to anchor the diffusion prevention unit to the water bottom. For this reason, the part of the main body floating body located near one end of the cord body and the part of the curtain connected to the main body floating body are in a state where they are easily in contact with one end side of the cord body. It has become.

Therefore, when the diffusion preventing unit fluctuates due to a water flow or a wave, the main body floating portion and the curtain portion are worn due to friction with one end of the cord, and therefore, easily. May be damaged.

Therefore, it is conceivable that each of the above-mentioned diffusion preventing units is made to have wear resistance. However, since these diffusion preventing units have a large shape, if these are made to have wear resistance as a whole, the diffusion preventing device will be required. It can be very expensive.

When the diffusion prevention unit is damaged as described above, it is conceivable to replace it with another new one. However, since the diffusion prevention unit has a large shape, the replacement work described above is performed. Is troublesome, and the damage is only a part of the diffusion preventing unit, so that the replacement is expensive and not preferable.

Third, since the lamppost is provided separately from each of the diffusion prevention units, it must be installed separately from these diffusion prevention units. It's complicated.

[0015] Further, a lamppost for floating the lamppost above the water surface is separately provided. However, the number of parts of the diffusion prevention device increases, and the configuration becomes complicated.

Fourthly, when the diffusion preventing unit swings due to a wave, the swinging portion causes friction between the connecting portions of the diffusion preventing unit and the cord, but if the friction is severe, the connecting portion becomes strong. May wear out early and be damaged.

Also, it is desired that the above-mentioned light beacon be installed on the water surface in a stationary state as much as possible without being affected by waves because of its life.

The present invention has been made in view of the above situation, and has the following object.

First, even when the connection between the adjacent diffusion prevention units is made stronger by the connection means of the two diffusion prevention units, the contaminated water passes over the upper part of the connection between the two diffusion prevention units by the connection means. Not to be.

Second, the diffusion preventing unit is prevented from being damaged by friction with a cord to which the diffusion preventing unit is moored, so that a large diffusion preventing unit is replaced with another new one. Is unnecessary.

Third, in the case where a lamppost is installed for visually recognizing the installation position of each diffusion prevention unit on the water surface, the operation of installing the lightpost can be facilitated, and the configuration of the diffusion prevention device is made. Try to make it easy.

Fourth, the friction at the connecting portion between the diffusion prevention unit side and the cord is reduced to suppress damage due to wear. In addition, the life of the lamppost is improved.

[0023]

Means for Solving the Problems An apparatus for preventing the diffusion of polluted water in water according to the present invention for solving the above problems is as follows.

According to the first aspect of the present invention, there is provided a diffusion prevention unit 6 extending in the front-rear direction and the vertical direction so as to divide the water 14 into right and left, and a plurality of the diffusion prevention units 6 arranged in a line in the front-rear direction. , 6 are connected to each other, and the connecting means 7 extends in the front-rear direction along the water surface 12, and a long main body floating body 13 floating on the water surface 12 and the underwater 14 in the front-rear direction and up and down. And a curtain 16 whose upper edge is connected to the main body floating body 13 in the direction of the main body 13.

Each of the connecting means 7 is provided near the opposite end of each of the main body floating bodies 13 of the adjacent diffusion prevention units 6 and 6 and is connected to a connecting floating body 19 which floats on the water surface 12, and this connecting means. A connecting tool 20 for connecting the ends of the main body floating bodies 13 to the use floating body 19 respectively.

According to a second aspect of the present invention, in addition to the first aspect, one end is connected to the connecting floating body 19 and the other end is connected to the water bottom 15 so that the diffusion preventing unit 6 is connected to the water bottom 15. It is provided with a cord body 31 to be moored.

[0027] The invention of claim 3 is the invention of claim 1 or 2.
In addition to the present invention, a lightpost 34 attached to the connecting means 7 so as to protrude upward from the upper end of the connecting means 7 is provided.

According to a fourth aspect of the present invention, in addition to any one of the first to third aspects, the connecting floating body 19 is
Arranged between the main body floating bodies 13 in the adjacent diffusion prevention units 6 and 6, the respective ends of the connecting floating bodies 19 in the left-right direction are located outside the respective ends of the main body floating bodies 13 in the left-right direction. It is located in the direction.

[0029]

Embodiments of the present invention will be described below with reference to the drawings.

1 to 4, reference numeral 1 denotes a water area such as the sea;
Reference numeral 2 denotes a water area where polluted water is generated, such as a coastal landfill, and 3 is a clean water area adjacent to the water area 2 where the polluted water is generated. For convenience of explanation, an arrow Fr is defined as a horizontal one direction in front, and The left and right directions refer to the direction toward the front.

An apparatus 4 for preventing the polluted water generated in the polluted water generating water area 2 from diffusing from the polluted water generating water area 2 to the clean water area 3 is provided. ing.

The diffusion prevention unit 4 includes a diffusion prevention unit 6 extending in the front-rear direction and the vertical direction, and capable of dividing water into a polluted water generation area 2 and a clean water area 3 left and right. A connecting means 7 for detachably connecting the plurality of diffusion prevention units 6, 6 arranged in a row, a mooring means 8 for enabling the respective diffusion prevention units 6 to be moored in a desired water area, Light beacon means 9 for visually confirming the installation position of the unit 6 by light emission.

Each of the diffusion preventing units 6 extends long in the front-rear direction along the water surface 12, and a long main body floating body 13 floating on the water surface 12, and extends underwater 14 in the front-rear direction and the vertical direction, and has an upper edge. A curtain 16 which is connected to the main body floating body 13 and has a lower end edge provided in the vicinity of or in contact with the water bottom 15 as a shielding film. The curtain 16 is supported by being suspended from the main body floating body 13. ing.

In the above case, each of the diffusion preventing units 6 is formed to have a predetermined length and has the same shape and the same size as each other for the convenience of production and transportation at a factory.

The main body floating body 13 is formed of a foamed material made of resin or the like, which has a circular cross section and extends in a bar shape in the front-rear direction, has flexibility, elasticity, and sufficient buoyancy. The curtain 16 is formed of a flexible resin sheet or synthetic fiber, and has a rectangular overall shape.

The main body floating body 13 may be formed by arranging a plurality of columnar floats continuously or intermittently in the front-rear direction and connecting them.
Further, the cross-sectional shape may be a polygon such as a rectangle. Further, the main body floating body 13 may be formed by a hollow resin pipe.

The connecting means 7 is disposed between the opposing ends of the main body floating bodies 13 of the adjacent diffusion prevention units 6 and 6 in the vicinity of each end thereof, and floats on the water surface 12. The connecting floating body 19 and the main body floating body 1 facing each of the front and rear ends of the connecting floating body 19.
A connecting member 20 for detachably connecting the ends of the third member 3 to each other;
20 and the underwater 14 extend in the front-rear direction and the up-down direction, the upper edge of which is connected to the connecting floating body 19 and the lower edge thereof is the bottom 1
5 and another curtain 21 which is a shielding film provided so as to be in contact with the water bottom 15. The other curtain 21 is supported so as to be suspended by the main body floating body 13.

The connecting floating body 19 is formed between the adjacent main body floating bodies 13 in a plan view of the diffusion prevention device 4.
In addition, a metal frame 23 is located at substantially the same position in the left-right direction as the main body floating bodies 13, 13, and projects from the frame 23 to the left and right outside, and its base is detachably fastened to the frame 23 by a fastener 24. And a pair of left and right resin foam floats 25, 25, each of which has a protruding end in the left-right direction protruding outward from each end of the main body float 13 in the left-right direction. It is positioned as follows. The connecting tool 20 is formed of a metal shackle. The connecting tool 20 is used to directly fasten a flange attached to an end of the main body floating body 13 to the frame 23 of the connecting floating body 19. You may comprise with a tool. The other curtain 21 is made of a flexible resin like the curtain 16 and has a vertically long rectangular shape, and is provided between the curtains 16 of the adjacent diffusion prevention units 6. Formed to close the void,
Opposite edges of each of the curtains 16 and the other curtain 21 are detachably connected as a whole.

The mooring means 8 has one end 28 substantially at the center of the connecting floating body 19 in the left-right direction.
9 is connected to a lower end portion of the frame 23 and the other end portion 29 is provided with a rope rope body 31 connected to the water floor 15 via a concrete anchor 30 installed on the water floor 15. By 31, the respective diffusion prevention units 6 are moored to the water bottom 15 so that the respective diffusion prevention units 6 and the respective connecting means 7 are moored in a desired water area. The cable body 31 may be a chain or a wire.

The light mark means 9 is detachably attached to the upper end of the frame 23 of the connecting floating body 19 in the connecting means 7 by a fastener 33 so as to emit light.
And a power supply 35 which is a photovoltaic power generation device that is detachably attached to the upper end of the frame 23 and supplies power to the lightpost 34 to emit light, and the lightpost 34 extends from the upper end of the connecting floating body 19. It protrudes upward.

According to the above configuration, each connecting means 7 is connected to each of the main body floating bodies 1 in the adjacent diffusion prevention units 6 and 6.
The water surface 12 is disposed near the opposite ends of
Connecting floating body 19 floating on
And a connector 20 for connecting the ends of the main body floating bodies 13 to each other.

For this reason, each of the diffusion preventing units 6, 6
Even if the connecting means 7 is heavy in order to ensure sufficient strength of the connecting means 7 for connecting the parts to each other, a sufficient buoyancy can be obtained by the connecting floating body 19 of the connecting means 7. In addition, it is possible to prevent the connecting means 7 from sinking the connecting portions of the diffusion preventing units 6 and 6 into water.

Therefore, as described above, even when the connection between the two diffusion preventing units 6 and 6 by the connecting means 7 is made more firm, the water area 2 where the polluted water is generated can be formed.
Is prevented from crossing over the clean water area 3 over the upper side of the connecting portion, and the diffusion of the contaminated water into the clean water area 3 is more reliably prevented.

Further, since the gap between the curtains 16, 16 of the diffusion preventing units 6, 6 is closed by the other curtain 21 of the connecting means 7, the diffusion preventing units 6, 6 are connected as described above. Even when the connecting means 7 is provided between the two, diffusion of the polluted water from the polluted water generating water area 2 to the clean water area 3 is more reliably prevented.

On the other hand, the connecting floating body 19 and another curtain 21 connected to the connecting floating body 19 are located near one end 28 of the cable body 31.
Therefore, when the diffusion preventing unit 6 fluctuates due to a water flow or a wave, and the connecting means 7 fluctuates with this, the connecting floating body 19 of the connecting means 7 and the other curtain 21 are in contact with each other. May be damaged by friction with the one end 28 of the cable body 31.

Therefore, the connecting floating body 19 of the connecting means 7 is used.
Also, the abrasion resistance of the other curtain 21 may be improved. Even in such a case, since the connecting means 7 has a sufficiently small shape as compared with the diffusion preventing unit 6, the diffusion preventing device 4 is expensive. Is suppressed.

When the connecting floating body 19 and the other curtain 21 of the connecting means 7 are damaged as described above, even if they are replaced with new ones, the connecting means 7 has a small shape. The replacement work can be performed easily and inexpensively.

According to the above configuration, the diffusion prevention unit 6 is connected to the cable body 3 via the connecting floating body 19 of the connecting means 7.
As a result, the diffusion preventing unit 6 and the one end 28 of the cord 31 are prevented from approaching each other, and the diffusion preventing unit 6 is prevented from being damaged by the cord 31. Therefore, there is no need to replace the diffusion prevention unit 6 having a large shape with another new one, which is advantageous in terms of workability.

Further, in a plan view of the diffusion preventing device 4, the cable body 31 extends obliquely forward and rearward at approximately 45 ° from each of the connecting means 7 toward the right and left outer sides thereof and extends therefrom. The other end 29 which is the protruding end is connected to the anchor 30. Therefore, each of the diffusion preventing units 6 is more reliably moored in a desired water area.

In addition, the cords 31 adjacent in the front-rear direction
31 is connected to a common anchor 30 so that the mooring means 8 has a simple configuration.

A lightpost 34 attached to the connecting means 7 so as to project upward from the upper end of the connecting means 7.
Is provided.

For this reason, the lamppost 34 can be attached to the connection means 7 during the installation work of each of the diffusion prevention units 6 and the connection means 7.
The installation work of the lightpost 34 can be facilitated as compared with the related art in which the lightpost 34 is installed as a separate work from the installation work.

In the prior art, a lamppost was required to float the lamppost 34 on the water surface 12. However, the necessity of the lamppost simplifies the construction of the diffusion prevention device 4 including the lamppost 34.

The shape of the connecting means 7 is increased in order to increase its buoyancy.
Since the lamppost 34 is mounted so as to protrude upward from the upper end of the lamppost, the lamppost 34 is positioned sufficiently high, and the visibility of the lamppost 34 is hindered by the diffusion preventing unit 6 and the connecting means 7 itself. It can be surely done from a distance without any problem.

Therefore, the installation position of each of the diffusion preventing units 6 can be easily and accurately visually recognized by a simple structure in which the light sign 34 is attached using the connecting means 7.

Since the power supply 35 of the light beacon 34 is a photovoltaic power generator, it is not necessary to wire the light beacon 34 from a power supply on the land side. Has become easier.

The connecting floating body 19 is disposed between the main body floating bodies 13 in the adjacent diffusion prevention units 6 and 6, and each end of the connecting floating body 19 in the left-right direction is connected to the main body floating body. 13 is located outside of each end in the left-right direction.

For this reason, the connecting floating body 19 is made wide in the left-right direction, and it is suppressed that the wave largely swings around the axis extending in the front-rear direction passing substantially through the center of gravity of the connecting floating body 19. You.

Accordingly, the connecting floating body 19 and the cord body 31 are connected.
And the friction of the connecting portion with the second member is reduced, and damage due to wear is suppressed.

Further, since the swing of the connecting floating body 19 of the connecting means 7 is suppressed, it is also possible to prevent the lamppost 34 attached to the upper end of the connecting floating body 19 from unnecessarily vibrating. The life of the lightpost 34 is improved.

Further, one end 28 of the cord 31 of the mooring means 8 is connected to the lower end of the frame 23 of the connecting floating body 19 of the connecting means 7. Of the connecting means 7 of the connecting means 7 is further suppressed.

FIG. 5 shows another embodiment.

According to this, the connecting floating body 1 of the connecting means 7
Reference numeral 9 denotes a floating body 38 made of a metal pipe which is a steel pipe whose axis extends in the front-rear direction, and a lid 39 for closing the opening of each end of the floating body 38 in the axial direction to hermetically seal its internal space. Have. According to this configuration, the configuration of the connecting floating body 19 becomes extremely simple.

Since other configurations and operations are common in many respects to the first embodiment, the common components are denoted by the same reference numerals in the drawings, and redundant description is omitted. .

[0065]

The effects of the present invention are as follows.

According to the first aspect of the present invention, there is provided a diffusion prevention unit extending in the front-rear direction and up-down direction and capable of dividing water into right and left, and a plurality of the diffusion prevention units arranged in a line in the front-rear direction. Connecting means for connecting to each other,
The connecting means includes a long main body floating body extending in the front-rear direction along the water surface and floating on the water surface, and a curtain extending in water in the front-rear direction and the up-down direction and having an upper edge connected to the main body floating body. In the equipment for preventing the diffusion of polluted water in the provided water,

Each of the connecting means is provided near an opposite end of each of the main body floating bodies of the adjacent diffusion prevention units and floats on the water surface, and each of the main body floating bodies is attached to the connecting floating body. And a connecting tool for connecting the end portions of the respective components.

That is, a large load is applied to the connecting means for connecting the diffusion preventing units to each other by the water pressure received by each of the diffusion preventing units. In order to cope with this load, when the connecting means has sufficient strength, even if the connecting means becomes heavy, sufficient buoyancy can be obtained by the connecting floating body of the connecting means.

Therefore, it is possible to prevent the connecting means from sinking the connecting portion between the two diffusion preventing units into water.

Therefore, as described above, even when the two diffusion preventing units are more firmly connected to each other by the connecting means, the contaminated water from the generated water area of the contaminated water flows over the connection portion. It is prevented from getting over the clean water area by getting over, and the diffusion of the polluted water into the clean water area is more reliably prevented.

According to the second aspect of the present invention, there is provided a cable body having one end connected to the connection floating body and the other end connected to the water bottom to moor the diffusion prevention unit to the water bottom. The effect of is produced.

That is, the connecting floating body and another curtain connected to the connecting floating body are located near one end of the cord, so that the cord can be easily brought into contact with the cord. Therefore, when the diffusion preventing unit fluctuates due to a water flow or a wave, and the connecting means fluctuates therewith, the connecting floating body of the connecting means and another curtain rub against one end of the cable body. May be damaged.

Therefore, the abrasion resistance of the connecting floating body of the connecting means and the other curtain may be improved. Even in such a case, the connecting means is sufficiently smaller in size than the diffusion preventing unit. In addition, the cost of the diffusion prevention device is suppressed.

Further, even if the connecting floating body of the connecting means or another curtain is damaged as described above, even if this is replaced with another new one, since the connecting means has a small shape, the work of the replacement is difficult. Can be made easily and inexpensively.

According to the above construction, the diffusion prevention unit is moored by the cord body via the connecting floating body of the connecting means, so that the diffusion prevention unit and one end of the cord body come close to each other. Thus, it is possible to prevent the diffusion prevention unit from being damaged by the cord. Therefore, there is no need to replace the diffusion prevention unit having a large shape with another new one, which is advantageous in terms of workability.

According to the third aspect of the present invention, there is provided a lamppost attached to the connecting means so as to protrude upward from the upper end of the connecting means.

For this reason, at the time of installing each of the above-mentioned diffusion preventing units and the connecting means, a lightpost can be attached to the above-mentioned connecting means. In comparison, the installation work of this lightpost can be easily performed.

In the prior art, a lamppost is required to float the lamppost on the water surface. However, the necessity of the lamppost simplifies the construction of the diffusion prevention device provided with the lamppost.

Further, the connecting means is formed in a large shape in order to increase its buoyancy, and a lightpost is mounted so as to protrude upward from the upper end of the connecting means. Thus, visual recognition of the lamppost can be reliably performed from a distance without being disturbed by the diffusion prevention unit or the connecting means itself.

Thus, the installation position of each of the diffusion prevention units can be easily and accurately visually recognized by a simple configuration in which the lamppost is attached using the connecting means.

According to the fourth aspect of the present invention, the connecting floating body is disposed between the main body floating bodies in the adjacent diffusion prevention units, and each end of the connecting floating body in the left-right direction is connected to the main body floating body. Are located outside of each end in the left-right direction.

For this reason, the connecting floating body is widened in the left-right direction, so that the wave is largely prevented from swinging around the axis extending substantially in the front-rear direction through the center of gravity of the connecting floating body.

Therefore, the friction at the connecting portion between the connecting floating body and the cord is reduced, and damage due to wear is suppressed.

In addition, since the swing of the connecting floating body of the connecting means is suppressed, the lamppost attached to the upper end of the connecting floating body is also prevented from unnecessarily vibrating. Is achieved.

[Brief description of the drawings]

FIG. 1 is a perspective view of a diffusion prevention device.

FIG. 2 is an overall side view of the diffusion prevention device.

FIG. 3 is an overall plan view of the diffusion prevention device.

FIG. 4 is a perspective view of what is shown in FIG.

FIG. 5 is a diagram corresponding to FIG. 1 in another embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Water area 2 Generated water area of polluted water 3 Clean water area 4 Diffusion prevention device 6 Diffusion prevention unit 7 Connecting means 8 Mooring means 9 Light beacon means 12 Water surface 13 Main body floating body 14 Underwater 15 Underwater floor 16 Curtain 19 Connecting floating body 20 Connecting tool 21 Other Curtain 28 One end 29 Other end 31 Cordage 34 Lightpost 35 Power supply

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Mikio Aizawa Kansai International Airport Co., Ltd. in Kansai International Airport Co., Ltd. (72) Inventor Akio Yasui Tree in Yodogawa-ku, Osaka-shi, Osaka 4-8-4 Kawahigashi Taiyo Kogyo Co., Ltd. (72) Inventor Hirofumi Kawamoto 4-8-4 Kikawahigashi, Yodogawa-ku, Osaka-shi, Osaka Taiyo Kogyo Co., Ltd. (72) Inventor Yoshinori Yokoyama Yodogawa, Osaka-shi, Osaka 4-8-4 Kikawahigashi-ku Taiyo Kogyo Co., Ltd. F-term (reference) 2D025 BA03 BA12

Claims (4)

[Claims] An anti-diffusion unit extending in the front-rear direction and up-down direction and capable of dividing water into left and right, and a connecting means for connecting a plurality of the anti-diffusion units arranged in a line in the front-rear direction to each other. A long body floating body extending in the front-rear direction along the water surface, and a curtain extending in the water direction in the front-rear direction and up-down direction and having an upper edge connected to the main body floating body. A device for preventing diffusion of polluted water in water, comprising: a connecting floating body, wherein each of the connecting means is disposed near both opposing ends of each main body floating body in the adjacent diffusion preventing unit and floats on the water surface. And a connector for connecting the ends of the main body floating bodies to the connecting floating body, respectively. 2. The polluted water in water according to claim 1, further comprising a cord connected at one end to the connecting floating body and connected at the other end to the water bottom to anchor the diffusion prevention unit to the water bottom. Anti-diffusion device. 3. The apparatus for preventing polluted water from diffusing in water according to claim 1, further comprising a lamppost attached to said connecting means so as to protrude upward from an upper end of said connecting means. 4. The connecting floating body is disposed between the main body floating bodies of the adjacent diffusion prevention units, and each end of the connecting floating body in the left-right direction is set in the left-right direction of the main body floating body. 4. The device according to claim 1, wherein the outer side is located outside the end.
The apparatus for preventing diffusion of polluted water in water according to any one of the above.