JP2000087340A - Pollution preventing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide such a pollution preventing device as the device is tied to a continuous buoyant body to float on the sea so that the continuous buoyant body is also automatically cut off at the same time when the belt-shaped pollution preventing device equipped with the continuous buoyant body is cut off in the middle part thereof by waves or is not in danger of causing a trouble thereby. SOLUTION: A plurality of prevention curtain bodies 1 having buoyant bodies 2 of hollow pipes on the tops, hanging curtains 3 of chemical fibers down to the lower parts and providing weights 4 in the lower edges of them are horizontally connected to each other with chains 7. Then, the buoyant bodies 2 are so connected that the insides of them can be made to pass through by means of flexible pipes 10, and fracture strength of the flexible pipes 10 is not stronger than that of the chains 7.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for preventing underwater pollution, and has a buoyant body such as a pipe at the top and a chemical fiber at the bottom in order to prevent the passage and diffusion of polluted water to a specific water area. The present invention relates to a device for hanging underwater curtains, using a plurality of sets of prevention curtains having a weight attached to the lower edge of the curtain, arranging them in the water, and preventing underwater pollution in the water area. .

[0002]

2. Description of the Related Art An example of a conventional pollution control device of the above-mentioned type is shown in FIG. That is, a buoyant body C composed of a pipe whose both end surfaces are hermetically sealed by end plates A and B is provided at the top, and a curtain D made of chemical fiber or the like is suspended below the buoyant body C.
A pollution control device is provided which is prepared by preparing a single preventive curtain F attached thereto, or connecting and laying these preventive curtains F ₁ and F ₂ sequentially as a group in a horizontal direction. ing. G is a marker buoy, and H is a fixed weight for fixing the device at a desired position in water.

[0003] P is a supply / discharge device which controls the buoyancy of the buoyant body C by freely exchanging air and water in the buoyant body C to freely change the vertical position of the pollution control device in water. be able to. Q is a chain for connecting the prevention curtain F _1, F ₂ adjacent, preventing curtain F ₁ R is adjacent, F ₂
Is a flexible tube which connects the internal spaces between the buoyant bodies C, C in a freely circulating manner. Thus to prevent water pollution in a given body of water using the configured Pollution Control device surrounds the region with transverse sets of which are connected to prevent curtain F _1, F ₂ ‥‥ By operating the supply / discharge device P, the capacity ratio of air to water in all the connected buoyant bodies C, C # is changed. As a result, the underwater positions of the prevention curtains F ₁ , F ₂ ‥‥ can be simultaneously moved up and down to a desired position.

[0004]

However, in such a conventional pollution control device, an external force acts in a direction in which the sea is rough and the adjacent curtain members are separated from each other, and the external force acts on the connection chain. Is cut off and the individual preventive curtains fall apart, each unit or a single unit collectively flows due to its own floating ability, resulting in unforeseen situations such as hindering marine traffic There is a possibility that.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned conventional problems. For example, a connection chain between each unit constituting a pollution control device is cut by stormy waves, so that each prevention curtain is disjointed. When a situation such as floating occurs, each individual preventive curtain will flow on its own due to its own floating ability that is preserved forever and does not disappear, resulting in problems such as hindering marine traffic However, when the connection chain between the single units is cut in this way, the preservation floating ability of each preventive curtain is always extinguished and the preventive curtain sinks quickly to the bottom of the water near the current position. An object of the present invention is to provide a pollution control device capable of preventing occurrence of an accident such as a trouble in marine traffic.

[0006]

In order to achieve the above-mentioned object, a pollution control device according to the present invention is a device which is erected underwater to prevent the passage and diffusion of polluted water,
The top is provided with a buoyant body consisting of a pipe in which both end faces are hermetically sealed with end plates to form a space inside, and a curtain made of chemical fiber or synthetic rubber is hung below the buoyant body. A plurality of preventive curtains provided with weights are sequentially connected in a horizontal direction, and adjacent preventive curtains are connected to each other by a connection chain, and each of the buoyant bodies provided by the preventive curtains is connected with each other. In the pollution control device, the end plates facing each other are connected by a flexible tube so that the internal spaces of the adjacent buoyant bodies can flow through the flexible tube. When an external force that separates the preventive curtains from each other acts and the connection chain is cut by the external force, the flexible tube interconnecting the buoyant bodies of the preventive curtains with the external force acts on the external force. Is made of a flexible tube of intensity in the range of cutting occurs the subsequent also to the flexible tube me.

[0007] With this configuration of the pollution control device, when an external force acts to separate the adjacent prevention curtains from each other and causes the connection chain to be cut by the external force,
Since the flexible tube interconnecting the buoyant bodies of the prevention curtain body is selected to have a strength within a range in which subsequent cutting is caused by the external force, the connection chain is cut. At the same time, the flexible tube is also cut, and as a result, the buoyancy bodies of all the curtains constituting the pollution control device are in a state where they can freely circulate with the outside, and lose their own levitation ability, As a result, all the curtains will sink to the bottom of the water near the current location. Therefore, it is possible to prevent accidents such as the prevention curtains that have fallen apart from floating alone on the water in a single or aggregated state, and as a result, hindering marine traffic.

If the mounting position when mounting both ends of the flexible tube on the end plate facing each other is set at the upper end or lower end of the end plate, for example, the internal space of the buoyant body is filled. When exchanging water or air, at the time of exchanging the entire series by operating the supply / discharge device provided at one end side of the internal space, for each buoyant body, the corners generated due to the shape of the buoyant body The amount of residual water or air can be reduced.

[0010] The attachment positions when the both ends of the flexible tube are attached to the end plates facing each other are set as the attachment positions on the adjacent one end plate and the adjacent other end. When the relative position with the mounting position on the plate is arranged such that the direction of the air flowing through the flexible tube when discharging the air of the buoyant body is a relative position that is a descending direction with respect to the horizontal direction, When exchanging water or air filling the internal space of the buoyant body, when exchanging the contents of the entire series by operating the supply / discharge device provided at one end of the internal space, for example, provided at one end of the internal space When the air in the system is discharged by operating the supply / discharge device, water is sucked from the other end side, and the buoyancy body is sequentially filled with water. At this time, the buoyancy body is filled with water in order from the buoyancy body on the other end side and sinks,
When arranged so that the flow direction of the air in the flexible tube connecting the end plate and the end plate facing each other is the downward direction,
Each buoyant body has air exhausted from its upper end,
The amount of air remaining inside each buoyant body can be minimized.

Conversely, when the supply / discharge device is operated and air is pushed into the system from the supply / discharge device side, the water filling the system is discharged from the other end side, and each buoyant body is connected to the supply / discharge device. Water and air are exchanged in order from the side closest to. At this time, the buoyancy body is sequentially pushed out of water from the side closest to the supply / discharge device, and is filled with air and floats up. A configuration in which the flow direction of the air in the flexible tube when discharging is a descending direction, in other words, the flow direction of the water in the flexible tube when discharging the water of the buoyant body is based on the horizontal direction. Since the position is in the ascending direction, the amount of water remaining at the bottom of the buoyant body can be minimized.

[0011]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 shows an embodiment of the apparatus of the present invention. A single preventive curtain 1 has a buoyant body 2 at the top, a curtain 3 made of chemical fiber or the like suspended at the bottom, and a large number of curtains 3 at the lower edge of the curtain 3. Weight 4 is attached to hold the curtain vertically. The buoyancy body 2 has both end faces 5
And 6 consist of a pipe hermetically sealed. In general, in order to perform the pollution prevention work on a water area in a specific area, a plurality of sets of the prevention curtain 1 having the above-described configuration are prepared, and these are sequentially arranged in a horizontal direction and connected to each other to surround the water area. A method of preventing underwater contamination therein is performed. 7
Is a chain spanned therebetween using the end plates 5 and 6 of the buoyant body 2 in order to connect the adjacent curtains 1 and 1 to each other.

Reference numeral 8 denotes a pump serving as a supply / discharge device for freely exchanging air and water in the buoyant body 2. The pump 8 is flexible between the upper end of one end plate 5 of the buoyant body 2 and the pump 8. The connection by the pipe 9 allows the pump 8 to operate to freely exchange the air and water in the buoyant body 2. Similarly, a flexible tube is provided between the upper end of the end plate 5 and the lower end of the end plate 6 for the opposing end plates 5 and 6 of the buoyant bodies 2 and 2 provided in all the adjacent curtains. 10, the pump 8 and the operation of the switching valve 11 attached thereto operate the pump 8 to operate the buoyant body 2 with respect to all the curtains 1, 1 す る constituting the pollution control device.
The exchange of air and water inside can be performed freely and extremely efficiently.

The flexible tube 10 is configured to have a strength within a range where the chain 7 between the adjacent curtain members is cut by some external force and the subsequent cutting is performed accordingly. I have. To put it simply, when the chain 7 is cut due to, for example, a wave in stormy weather, and there is a possibility that the respective curtains may fall apart and float, the flexible tube 10 may be cut accordingly. It is configured to have the degree of vulnerability that occurs. Further, it is desirable that the length of the flexible tube 10 is set to a length close to the length of the chain 7.

In order to prevent underwater pollution in a predetermined water area by using the pollution prevention device configured as described above, the area is controlled by using a plurality of sets of prevention curtains 1, 1 # connected in a horizontal direction. By controlling the volume of air and water in all surrounding buoyant bodies 2, 2 # by operating the surrounding and pump 8, the attitude of the entire apparatus, for example, the degree of ups and downs of the apparatus, the degree of draft, the inclination Freely change the degree. This makes it possible to simultaneously raise and lower the underwater position of the entire apparatus to a desired position.

An embodiment for performing a high-efficiency operation when performing the overall floating operation by the present apparatus will be described in detail with reference to FIGS. 3 and 4. FIG. FIG. 3 shows only the respective buoyancy members 2 of the pollution control device composed of four sets of prevention curtains, and shows the progress of the floating and settling by the diagrams (a) to (f). (a) shows a state in which all the buoyant bodies 2 of all the devices are filled with air and float on the water surface. FIG. 5B shows a state in which the pump 8 is operated to start removing air from the buoyant bodies 2 of all the devices. At this time, the buoyant body 2 farthest from the pump 8 is replaced with air and water, and the buoyant body 2 is in a state where the right side floats and the left side sinks. Therefore, the residual air 12 of the buoyant body 2 flows from one end of the flexible tube 10 through the flexible tube 10 to the next buoyant body. At this time, the arrangement of the mounting positions of the one end of the flexible tube 10 and the other end of the flexible tube on the end plates 5 and 6 depends on the flow direction of the residual air 12, that is, the one end of the flexible tube 10. Through the flexible tube 10 and into the other end of the buoyant body on the end plate 6 of the next buoyant body. As is clear from the figure, the exchange operation between air and water is performed very easily, easily and in a short time, and the amount of residual air 12 is minimized to perform highly efficient work. can do.

FIG. 4 shows a state in which the buoyant body 2 of all the devices is filled with water and is submerged below the water surface in FIG. FIG. 2B shows a state in which the pump 8 is operated to supply air to the buoyant bodies 2 of all the devices, and the water filling the buoyant bodies 2 has been removed. That is, in FIG. 2B, the air pumped from the pump 8 enters the upper part of the right end of the buoyant body 2, and the remaining water 13 inside is gradually pushed out to the lower left end, and flows from the flexible tube 10 to the next buoyant body. Is shown. In FIG. 3C, the inside of the buoyant body 2 closest to the pump 8 is in a state where the residual water 13 is almost completely discharged to the downstream side and the inside is almost completely filled with air. At this time, the attitude of the buoyant body 2 closest to the pump 8 is such that the right side floats and the left side sinks as shown in the figure, and the attitude of the buoyant body 2 adjacent to the left side of the buoyant body 2 is rightward. , And similarly, the right side floats and the left side sinks. Therefore, the remaining water 13 sent to the adjacent buoyant body 2 through the flexible tube 10 is in a position where the flexible tube 10 is attached to the both ends of the flexible tube 10 for the same reason as described with reference to the operation of FIG. Since the pipes are connected stepwise so that the water in the pipe flows in the upward direction, the amount of water remaining at the bottom of the buoyant body is apparent from the following figures (d) to (f). , And highly efficient work can be performed.

[0017]

Since the pollution control device according to the present invention is constructed as described above, it has the following excellent effects.

A) According to the first aspect of the present invention, the connection chain between the individual units constituting the pollution control device is cut off by the stormy weather waves, whereby the prevention curtains are separated and float on the water surface. When something happens,
It is possible to prevent a situation in which each single substance or an aggregate of the individual substances flows arbitrarily and distantly due to the self-preserved floating ability, and as a result, hinders marine traffic. In other words, when a break occurs in the connection chain between the single bodies, a break occurs in the flexible tube interconnecting the buoyant bodies prior to or accompanying the break, thereby preventing all the problems. Since the flexible tube of the curtain is opened into the water and each preventive curtain rapidly loses its floating ability and sinks down on the spot, the accident can be prevented beforehand.

B) In the second aspect, for example, when performing the floating operation of the buoyant body, by controlling the volume of water or air filling the internal space, the posture of the entire apparatus, for example, the degree of floating or sinking of the apparatus or the draft, When you want to change the inclination freely, or as an emergency, the connection chain between each unit is cut off, and in response to that, the floating capacity of each preventive curtain is automatically lost and it sinks on the spot In addition, it is possible to reduce the amount of residual water or air at the corners caused by the shape of the buoyant body for each buoyant body, thereby improving the operation speed and increasing the efficiency.

C) According to the third aspect of the present invention, when performing the operation of floating and sinking the buoyant body, or as an emergency, disconnection of the connection chain between each unit occurs, and in response thereto, the floating ability of each preventive curtain is automatically adjusted. When lost and submerged in place, for each buoyant body, it is possible to minimize the residual amount of water or air at the corners caused by the shape of the buoyant body, thereby further speeding the operation Improvement and efficiency improvement are promoted.

[Brief description of the drawings]

FIG. 1 is a front view showing a main part of an embodiment of the apparatus of the present invention.

FIG. 2A is a cross-sectional view taken along line aa of FIG. FIG. 2B is a cross-sectional view taken along the line bb of FIG.

FIG. 3 is an explanatory diagram showing one change of an operation mode of the device of the present invention over time.

FIG. 4 is an explanatory diagram showing the other change of the operation mode of the device of the present invention over time.

FIG. 5 is a perspective view of a conventional device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Prevention curtain 2 Buoyant body 3 Curtain 4 Weight 5, 6 End plate 7 Chain 8 Pump 9, 10 Flexible tube 11 Switching valve

Claims (3)

[Claims] 1. A buoyant body comprising a pipe standing underwater in order to prevent the passage and diffusion of polluted water. In addition, a curtain made of a synthetic fiber or a synthetic rubber is suspended below the lower part, and a plurality of prevention curtains having a weight attached to the lower edge of the curtain are sequentially connected in a horizontal direction,
By connecting the adjacent unitary prevention curtains with a connection chain, and connecting the mutually facing end plates and end plates of the respective buoyant bodies provided by the prevention curtains with a flexible tube, In the pollution control device, the internal spaces of the adjacent buoyant members can be mutually circulated through the flexible tube. An external force acts to separate the adjacent preventive curtain members from each other, and the external force causes the connection. When the chain is cut, the flexible tube interconnecting the buoyant bodies of the prevention curtain body is made of a flexible tube having a strength within a range in which the external force causes the flexible tube to be successively cut. A pollution control device characterized by that: 2. The pollution according to claim 1, wherein the mounting position on each end plate of the flexible tube interconnecting the buoyant bodies of the adjacent prevention curtains is an upper end or a lower end of the end plate. Prevention device. 3. A mounting position on each of the end plates of the flexible tube interconnecting the buoyant bodies of the adjacent preventive curtains, the mounting position on one adjacent one of the end plates, and the adjacent other side. 3. The position relative to the mounting position on the end plate is a position where the direction of air flowing through the flexible tube when discharging air from the buoyant body is a downward direction with respect to the horizontal direction. The pollution control device described in the above.