JP4097179B2 - Pollution prevention fence such as polluted water - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention is an oil fence that prevents the spillage and diffusion of crude oil, etc., a pollution water diffusion prevention fence that is extended around the construction site, or a jellyfish entry prevention fence that is extended near the cooling water intake of a power plant. The present invention relates to a fence that can be installed in a state that reaches from the water surface to the seabed (hereinafter collectively referred to as “fouling prevention fence such as contaminated water”).
[0002]
[Prior art]
As fences installed in the ocean, rivers or lakes, in addition to fences installed in the state of floating near the water surface, such as oil fences that prevent the outflow and diffusion of crude oil, etc., polluted water that is spread around construction sites There are known fences that are installed in a state that reaches from the water surface to the sea floor, such as a diffusion prevention fence or a jellyfish ingress prevention fence that is extended near the cooling water intake of a power plant.
[0003]
A fence 30 as shown in FIG. 5 is widely known as a conventional anti-diffusion fence such as polluted water that can be installed in a state of reaching from the water surface to the sea floor. In this fence 30, curtains 32 are suspended from each of the connected floats 31, and the float 31 is moored via a rope 35 to an anchor block 34 submerged in the seabed. A weight chain 33 is provided at the lower part of the curtain 32, so that the fence 30 can be installed in a state of reaching the seabed.
[0004]
[Problems to be solved by the invention]
In the method of anchoring the float 31 with the rope 35 by sinking the anchor block 34 to the sea bottom like the conventional anti-diffusion fence 30 such as polluted water, the anchor blocks 34 are arranged at positions away from the fence 30 on both sides of the fence 30. Therefore, a considerably large space is required on both sides of the fence 30. For this reason, there existed a problem that the conventional anti-diffusion fences 30 such as polluted water could not be installed in a place without such a space.
[0005]
On the other hand, it is conceivable that the fence for preventing diffusion of contaminated water or the like is a pile mooring type, and a mooring jig is loosely fitted to the pile so as to be movable up and down, and a floating body is hung between the mooring jigs. According to this technology, it is possible to realize a diffusion prevention fence such as contaminated water that can exhibit an excellent fence function without requiring a wide installation place.
[0006]
On the other hand, in the anti-diffusion fence for polluted water installed on the sea etc., there is a known floating type that can draw out the air in the fence body when it is stormy or unused, and sink it to the sea floor. When this type of fence body is applied to the above-described pile mooring type, the mooring jig also needs to be lifted and lowered in conjunction with the fence body. Up to now, as a method for imparting a buoyancy adjustment function to the mooring jig itself, as shown in FIG. 4, an air chamber 15 has been provided in the mooring jig 12, and the water and air inside the air chamber 15 at the time of floating and sinking However, in this case, since an operation mechanism of a system different from the buoyancy adjustment of the fence body is required, handling is complicated.
[0007]
Further, since this technique is based on the premise that the mooring jig 12 has both a mooring function and a buoyancy function, the mooring jig 12 needs to be hermetically sealed, which requires processing man-hours. It was. Furthermore, since the mooring jig 12 itself is not premised on expansion and contraction, two openings (the air inlet / outlet port 13 and the water inlet / outlet port 14) are required to perform buoyancy adjustment by replacing water and air. Therefore, stable buoyancy adjustment was difficult.
[0008]
Therefore, the object of the present invention is to solve the above-mentioned problems, and can be installed well in a place where there is no wide space to be installed, and has an excellent fence function in a state reaching from the water surface to the seabed It is to provide a fence for preventing diffusion of contaminated water and the like having an excellent buoyancy adjustment function.
[0009]
[Means for Solving the Problems]
As a result of intensive studies to solve the above-mentioned problems, the present inventors made the above-mentioned object by providing a diffusion mooring fence such as contaminated water with the pile mooring type as described above, and additionally providing a buoyancy adjusting mechanism in the mooring jig. The present invention has been completed. That is, the present invention is as follows.
[0010]
(1) A pile fixed to the seabed, lake bottom, riverbed or the like and vertically upright, a mooring jig loosely fitted to the pile, a floating body linked between the adjacent mooring jigs, and the floating body The mooring jig includes an expandable / contractable bag body having a buoyancy adjustment function, and the air supply / exhaust of the floating body and the bag body via a pipe branched from one pipe It is a fence for preventing diffusion of polluted water, which is characterized by being performed respectively. The pile mooring type allows for good installation even in places where there is no free space around the installation, and the mooring jig is provided with a bag to separate the mooring function from the buoyancy adjustment function. As a result, the buoyancy can be adjusted appropriately without causing the above-described problems. In addition, by supplying and exhausting the bag body responsible for buoyancy adjustment of the mooring jig and the floating body responsible for the buoyancy of the fence body in the same system, the operation is simplified and the handling property of the diffusion prevention fence such as polluted water is improved. be able to.
[0011]
(2) In the fence for preventing diffusion of contaminated water or the like of (1), the bag body is a fence for preventing diffusion of contaminated water or the like provided on the outer periphery of the mooring jig. Although the bag body can be provided inside the mooring jig, it can be easily assembled and attached by providing it outside.
[0012]
(3) In the fence for preventing diffusion of contaminated water or the like according to (1) or (2), the fence for preventing diffusion of contaminated water or the like provided with a plurality of the bags. By providing a plurality of bags, the buoyancy can be easily adjusted regardless of the size of the mooring jig.
[0013]
(4) In the fence for preventing diffusion of contaminated water or the like of (1), the bag body is a fence for preventing diffusion of contaminated water or the like in which a plurality of the bags are provided at substantially equal intervals on the outer periphery of the mooring jig. Thereby, buoyancy can be balanced in each mooring jig. .
[0014]
(5) The anti-diffusion fence for contaminated water or the like in (4), wherein the bag body is a pair of anti-diffusion fences for contaminated water provided in a direction perpendicular to the longitudinal direction of the floating body. Thereby, the balance of the buoyancy in each mooring jig can be more favorably taken in relation to the bag body.
[0016]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be specifically described.
FIG. 1 shows a partially cutaway perspective view of a pile 1 and its surrounding structure of a fence for preventing diffusion of contaminated water or the like according to an embodiment of the present invention. In this preferred embodiment, a mooring jig 2 is loosely fitted to a pile 1 fixed and upright on the seabed so as to be movable up and down. A floating body 4 is connected between adjacent mooring jigs 2, and a fence body 5 is suspended from the floating body 4. In addition, a weight chain is provided at the lower part of the fence body 5 (not shown), so that the function as a fence can be sufficiently achieved. Since the fence for preventing the diffusion of contaminated water of the present invention is a pile mooring type, it does not require a large space for installation, and therefore can be applied even in a narrow place that cannot be installed with a conventional fence. is there.
[0017]
Further, as shown in the figure, the mooring jig 2 is provided with an expandable / contractable bag 3 having a buoyancy adjustment function. As shown in the figure, the bag body 3 is provided with an air supply / exhaust pipe 6a. By supplying and exhausting air through the air supply / exhaust pipe 6a, the buoyancy of the mooring jig 2 can be adjusted. Thereby, the buoyancy of the mooring jig 2 can be adjusted with a simple operation without causing the structure of the mooring jig 2 itself to be complicated. Since the bag body 3 is formed in a flexible manner, when the air is supplied, it expands as shown in FIG. On the other hand, when sinking, as shown in FIG. 3, the air in the bag 3 is discharged and contracts to reduce buoyancy, thereby smoothing the sinking.
[0018]
The bag body 3 is preferably provided on the outer periphery of the mooring jig 2 as shown in the figure, but may be provided inside, and the installation position is not particularly limited. In particular, when it is provided on the outer periphery, it only has to be attached after the mooring jig 2 is manufactured, so that there is an advantage that assembly is facilitated. The effect of the present invention can be obtained if at least one bag body 3 is provided. However, it is preferable to provide a plurality of bags 3, and more preferably, a plurality, particularly at substantially equal intervals, on the outer periphery of the mooring jig 2. Are provided in a pair perpendicular to the longitudinal direction of the floating body 4. The number, arrangement, size, and shape of the installation can be appropriately determined according to the size, shape, etc. of the mooring jig 2, and are installed so that sufficient buoyancy can be secured and appropriate adjustment can be made. Further, as the installation method, various methods such as using fasteners 7 such as bolts and screws as appropriate and fastening at two places on the upper and lower sides of the mooring jig 2 can be adopted. Furthermore, there is no restriction | limiting in particular also in the material of the bag body 3, and the flexible bag body which can be expanded / contracted should just be formed. Preferable examples include soft plastics and rubber materials.
[0019]
Moreover, in this invention, as shown in FIG. 1, it is preferable to supply and exhaust the bag 3 and the floating body 4 via piping 6a and 6b branched from one piping 6, respectively. In other words, by performing the buoyancy adjustment of the mooring jig 2 and the buoyancy adjustment of the fence body 5 by air supply / exhaust through the same system of piping, the ascent during supply and the settlement during exhaust become smoother. In addition, the buoyancy of the entire diffusion prevention fence such as polluted water can be adjusted with a simpler operation, and the handleability can be improved.
[0020]
As the pile 1, although an iron pipe can be used suitably, there is no restriction | limiting in particular. In addition, the floating body 4 linked between the mooring jigs 2 does not require a special structure, and a normal connection float that is conventionally known can be used. In order to suspend the fence body 5 from the floating body 4, it is not limited to the case where the fence body 5 is directly suspended as shown in the figure. A cylindrical storage portion (not shown) is formed on the top of the fence body 5, and the floating body 4 is formed therein. May be passed through in a connected state. Alternatively, the fence body 5 may be attached directly to the floating body 4 using a rope or the like. Note that the weight attached to the lower portion of the fence body 5 is not particularly limited to the weight chain as long as the swing of the fence body 5 can be suitably suppressed.
[0021]
Further, the connection length of the floating body 4 and the length of the fence body 5 linked between the mooring jigs 2 may be appropriately determined according to the number and height of the piles 1 and further taking into account the tidal current and the like. Well, these are not particularly limited.
[0022]
Although not shown, in this case, a curtain is attached to the outer periphery of the mooring jig 2, and this is preferably joined to the side of the fence body 5 through a connecting curtain so that a gap is formed at the pile 1 portion. It is preferable to connect the fence main bodies 5 to be connected. The dimensions and materials of the curtain and the connecting curtain in this case are not particularly limited, and can be suitably determined according to the fence body 5. In particular, since the curtain is easily broken by contact with the pile 1, it is usually formed of a chemical fiber material such as polyester, but a cord-embedded rubber sheet may be used.
[0023]
The curtain may be attached to the mooring jig 2 in a semicircular state at the lower part of the outer peripheral surface of the mooring jig 2, and the attachment can be performed with a fastener such as a bolt or a screw. When the curtain is attached in a semicircular state, both ends thereof are extended in the radial direction of the mooring jig 2 to form ears, and the floating body 4 is attached to the ears to attach the curtain 2 and the floating body 4. Is preferably connected. In particular, when the pile 1 is installed in a place where the tide is intense, the curtain is greatly deformed and easily broken. In that case, the material of the curtain is considered as described above, and preferably the curtain is removed. It is provided over the entire outer periphery of the mooring jig 2.
[0024]
Further, in order to facilitate the vertical movement of the mooring jig 2 and to enhance its durability, a low friction material may be disposed on the surface of the mooring jig 2 facing the pile 1. preferable. The location and number of low friction materials may be determined as appropriate. In the case of a cylindrical mooring jig 2 as shown in the figure, for example, the low friction material is attached only to the upper and lower portions of the inner peripheral surface that rubs against the pile 1. May be. There is no restriction | limiting in particular also in an attachment method, What is necessary is just to use fasteners, such as a volt | bolt and a screw, suitably. As the low friction material, a low friction and high wear resistance material such as ultra high molecular weight polyethylene can be suitably used.
[0025]
In this case, the low friction material may be provided directly on the mooring jig, but the pile 1 and the low friction material are brought into contact with each other by attaching the low friction material with a cushioning material such as rubber interposed therebetween. Even in this case, damage to the low friction material can be prevented. That is, the low wear material made of ultra-high molecular weight polyethylene has a high rigidity and no buffer function. Therefore, when a lateral force is applied to the fence due to a change in weather or the like, it collides with the pile 1 and a lateral impact force. However, if a shock absorbing material is provided, this shock can be buffered, and the low friction material can be prevented from being damaged. In addition, there is no particular limitation on the way of providing the cushioning material, and at least the desired cushioning effect can be obtained if it is interposed between the mooring jig and the low friction material. Also good.
[0026]
As means for smoothly moving the mooring jig up and down, a roller for vertical movement can be provided instead of the low friction material. For example, by providing a roller for vertical movement on the inner peripheral surface of the mooring jig 2, the vertical movement of the mooring jig 2 can be made extremely smooth and its durability can be enhanced.
[0027]
【The invention's effect】
As explained above, according to the present invention, it can be installed well even in a place where there is no wide space around it and it exhibits an excellent fence function in a state reaching from the water surface to the seabed. In addition, it is possible to provide an anti-diffusion fence such as polluted water having an excellent buoyancy adjustment function.
[Brief description of the drawings]
FIG. 1 is a partially cutaway perspective view showing a pile of a fence for preventing diffusion of contaminated water, etc., and its surrounding structure according to a preferred embodiment of the present invention.
FIG. 2 is a side view showing a state in which a bag body is inflated.
FIG. 3 is a side view showing a state in which the bag body is contracted.
FIG. 4 is an explanatory view showing a conventional buoyancy adjustment mechanism of a mooring jig.
FIG. 5 is a perspective view showing a state in which a conventional anti-diffusion fence such as contaminated water is extended.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1,11 Pile 2,12 Mooring jig | tool 3 Bag body 4 Floating body 5 Fence main body 6 Piping, supply / exhaust pipe 7 Fastener 13 Air inlet / outlet 14 Water inlet / outlet 15 Air chamber

Claims (5)

A pile fixed to the seabed, lake bottom, riverbed, or the like and vertically upright, a mooring jig loosely fitted to the pile, a floating body connected between the adjacent mooring jigs, and suspended from the floating body And the mooring jig includes an expandable / contractable bag body having a buoyancy adjustment function, and the air supply and exhaust of the float body and the bag body are respectively performed via pipes branched from one pipe. Anti-diffusion fence for contaminated water.   The fence for preventing diffusion of contaminated water or the like according to claim 1, wherein the bag body is provided on an outer periphery of the mooring jig.   The fence for preventing diffusion of contaminated water or the like according to claim 1 or 2, wherein a plurality of the bags are provided.   The fence for preventing diffusion of contaminated water or the like according to claim 1, wherein a plurality of the bags are provided at substantially equal intervals on the outer periphery of the mooring jig.   The fence for preventing diffusion of contaminated water or the like according to claim 4, wherein a pair of the bags are provided in a direction perpendicular to the longitudinal direction of the floating body.

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