JPH0813457A - Collecting device for effluent oil - Google Patents

Abstract

PURPOSE:To effectively collect effluent oil, by providing a plurality of floats, weights, and core bodies at an oil fence bringing out a collecting function while being towed by boats, in which a fence belt is retained vertically against the water level and prevented from contracting. CONSTITUTION:First floats 2, second floats 5, weights 3, core bodies (rod-form body) 12, etc., are provided on an oil fence (fence belt) 1 having a specified width. The fence belt is vertically retained against the water level and the length is made extensible by connection and the total length is made adjustable. Both ends of the fence belt are towed by boats 7, 7' to collect effluent oil on the sealevel 21 and recover it by an oil recovery device 10. During the collecting works, the fence belt is prevented from falling or contracting and further, it is connected to add the length and adjusted. In this way, the effluent oil can be efficiently recovered.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an oil fence for collecting oil spilled by an accident such as an oil transport ship at sea or an oil well for oil extraction while towing by a ship.

[0002]

2. Description of the Related Art In recent years, as the demand for petroleum has increased worldwide, the number of oil spill accidents at the site of crude oil extraction on the sea and in the process of transportation thereof has increased along with the increase in demand. Once a spill accident occurs on the sea, it spreads over a wide sea area and adversely affects not only the organisms living in the sea but also human society. Once a spill accident occurs, it is desirable to promptly collect and process it. For this reason, oil fluence is widely used as a method to minimize the diffusion of oil spilled on the sea surface.

However, these oil fences mainly prevent the diffusion of floating spilled oil. For example, as shown in FIG. 6, the actual Kaihei 4-41520 has a structure that surrounds the floating area of oil at the spill site and floats it above the sea surface to follow the tide and collect the floating oil. A method of suppressing the diffusion of volatile gas into the atmosphere by spraying an oil neutralizing agent is used as the method of 2., but the neutralizing agent that has adsorbed the oil precipitates on the seabed and causes environmental damage. It may cause a secondary disaster.

[0004]

However, these are limited to the case where the oil spillage is relatively small, and the wider the oil spreads, the poorer the workability and the more difficult it is to collect and recover evenly. Especially in sea areas where the tidal current changes with time, the dispersion of oil spills often drifts in strips for a very long time, and once the flow begins, collection is extremely difficult. The present invention is to provide an oil fence (hereinafter, referred to as a fence) that exerts its collecting function even in the spilled oil which has started to drift.

[0005]

SUMMARY OF THE INVENTION Therefore, according to the present invention, in a hedge for surrounding and collecting oil spills floating on the water surface, a floating body for maintaining the horizon substantially vertical to the water surface, and the hedge. The lower part of the fence has a weight for stabilizing the buoyancy, and a plurality of cores that prevent the ridge from contracting in the width direction are provided. It has a bag-like binding, and a rope or steel rope (hereinafter referred to as rope) for towing the hedge is inserted in the saddle-like portion, and both edges of the fence are integrated with the fence. It has a tow stabilizer that is wrapped and fixed, and connects the net etc. to the tow stabilizer, and the ropes to be towed by ships etc. are connected from above and below the tow stabilizer, respectively. Etc. maintain a predetermined length, and are integrated into one piece on the top and bottom. A further floating body is provided for keeping it, and a further rope etc. for connecting to the ship etc. is extended from its integral part, and connecting means for connecting to the ship etc. while maintaining a predetermined length. It is a device that has.

[0006] As another means of forming the above-mentioned hedge, in a series of hedges formed by connecting a plurality of hedges, the single hedge is to maintain a posture almost vertical to the water surface. It has a floating body and a weight that stabilizes the buoyancy at the bottom of the hedge, and it has multiple cores that prevent contraction in the width direction of the hedge. A rope or the like for connecting the ropes to form a series of fences is inserted, and both ends of these ropes are closed type straightening cloth so that the collected oil does not leak from the joints when the fences are connected. When the closed type rectifying cloth is fixed to one edge and the other is opened to connect a plurality of edges to form a series of edges, the closed rectification cloth provided at those connecting portions is a series of edges. When towed, each of them should fly along the flow of the collecting oil in the direction of closing their connecting parts. It is a single fence band that connects the fence band.

[0007] It is the same that the edge strips at both ends of the series of edge strips have a structure for maintaining a predetermined posture and shape on the water surface as described above, but the upper and lower edges of the edge strips are Each of them has a bag-like binding shape in the longitudinal direction, and a rope or the like for connecting to other hedges to form a series of hedges is inserted in the bag-like binding portion. One end of has a connecting part for connecting with other hedges, and when the hedges are connected, a closed type flow regulating cloth is provided so that the collected oil does not leak from the connection part. One of them is fixed to the fence and the other is released, and this fence has a traction stabilizer that is wrapped and fixed integrally with the fence at its one end, and the other end of the rope mentioned above is used for this traction. Tethers connected to the stabilizer, and towed by ships etc. from above and below this tow stabilizer. The two ropes, etc., which are respectively connected and are connected from above and below the towing stabilizer, maintain a predetermined length, and then the upper and lower ropes are integrated into one and the integrated part is A floating body is provided to keep the ropes levitated, and further ropes to be towed by the boat etc. are extended from its integral part, and there is a connecting means for connecting to the boat etc. while maintaining a predetermined length. A series of fences are formed by connecting these fences.

[0008]

With the spilled oil collecting apparatus according to the first aspect of the present invention, the spilled oil or the like is surrounded and collected while being towed by at least two ships. The collector is extended to a shape close to a parabola, and particularly when the spilled oil drifts along the sea surface in a band shape, it is towed from the downstream side to the upstream side. It is efficient and can withstand various towing intervals between two ships, depending on the diffusion status of the spilled oil and various towing speeds.

According to the second aspect of the present invention, the same oil fence as in the first aspect can be formed by connecting a plurality of fences with a rope or the like. In this case, a closed type flow regulating cloth is provided to prevent the oil collected from each connecting part from leaking. Then, up to ½ of its total length, the above-mentioned closed type rectifying cloth connects the above-mentioned connecting portion in the direction of the flow of collected oil, for example, in the direction in which the flag flutters in the wind, while in the other half, It is a structure that can be connected symmetrically with it so that the oil that has been collected by blocking these connections will not escape from these gaps.

The operation according to the third aspect of the invention is the structure of the edge strips at the ends when a plurality of edge strips are connected, and the intermediate strips are connected from the edge strips to a ship towed by a rope or the like. Since the tightening force of ropes acts from the fence, the towing stabilizer plate prevents deformation of the fence.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The spilled oil collecting apparatus of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view showing an overall configuration of an oil spill collecting device of the present invention. In FIG. 1, reference numeral 1 is a fence, which is an integral type in this figure, and 2 is a first floating body which is a fence. It is divided into a plurality of parts along the entire length and is attached to the outside of the fence, that is, when the fence 1 is towed by a tugboat 7, 7 ', it is formed between two vessels 7, 7'. If the inside of the approximate parabola formed by the fence 1 is the inside, the first floating body 2 is located outside thereof. In addition, it is desirable that the inside of the fence be as smooth and uneven as possible.

Reference numeral 3 attached to the lower part of the hedge 1 is a weight for vertically stabilizing the hedge in water, and 4 and 4'is a second rope or the like extending from the upper and lower ends of the hedge. The upper and lower two ropes and the like have their ends made into a single end and are connected to the second floating body for the rope 5 and 5 ', and further, from the second floating body 5 and 5'to the third rope. 6 and 6'are extended so that they can be connected to tugboats 7 and 7 '. Further, in the figure, 10 is a well-known oil recovery device for recovering the collected oil, 20 is the outer sea surface of the hedge, and 21 is the inner sea surface of the hedge which is collecting the spilled oil.

FIG. 2 is a detailed view of both ends of the fence 1 connected to the tugboat. Reference numeral 5a is a rope connecting body integrated with the rope floating body 5, and is a second rope 4a, 4a, 4a extending from the fence 1 or the like.
b is integrated by this rope connecting body 5a. Reference numeral 6a denotes a connecting means which is the tip shape of the third rope 6 or 6'extended from the rope floating body 5 and which is connected to the tugboat 7 or 7 '.

At both ends of the fence 1, traction stabilizers 9 are provided.
It is wrapped and fixed so as to be integrated with the towing stabilizer 9, and the rope 1 and the through connection holes 9a, 9
Through connection holes 9a, 9 provided with b, 9c, 9d
First ropes 8a and 8b are connected to b, and 9c,
Second ropes 4a and 4b are connected to 9d. Next, the first floating body 2 will be described. The floating body 2 is, for example, Styrofoam or the like and is a substance that causes buoyancy, and the floating body 2 faces the outside of the hedge 1 and is approximately in the middle in the width direction of the fence. It is provided at the position of, and wraps this floating body with the same material as the hedge and is integrated with the hedge. The weight 3 used to vertically stabilize the hedge 1 in water is made of the same material as the fence at the lower end of the fence 1 in a long bag state.
Sand or pebbles, for example, is packed therein and adjusted to a predetermined weight to be integrated with the fence.

FIG. 3 is a view obtained by cutting the hedge 1 at an arbitrary position in the longitudinal direction, 11 is a reinforcing member in the width direction of the hedge, and is made of the same material as the hedge, 12 is the hedge. Is an aggregate that prevents contraction in the width direction, and is provided integrally with the fence by using metal, rigid resin, plastic, or the like. 8 and 8'are connecting ropes or the like that connect the fences of each unit length, and the ends are annular so that they can be connected to the end ring on the other end of the connection with, for example, a C-shaped connecting ring. Since the connected hedges are subjected to a considerable amount of tension during the oil spill collecting operation, a connecting rope and a C-shaped connecting ring capable of withstanding this force are required.

FIG. 4 is an outer perspective view of a single-length strip in the case where a plurality of strips are connected to form a series of strips, and mainly the details of the connecting portion. 13 is a closed type rectifying cloth provided only on one side of the single-length hedge, and has a substantially rectangular shape, and one side in the vertical direction is sewn only to one end of the hedge 1 ', 14a is the single-length. Is a connecting member such as a zipper and is sewn to the hedge, and a zipper 14b is sewn to the other end, and the other side, for example, the side corresponding to 14a. You can connect with this zipper.

FIG. 5 is a view of the embodiment of FIG. 4 seen from the inside, in which the closed type rectifying cloth 13 has a portion 13a sewn to the main body of the fence and an open portion 13b. When the fence is towed in the direction of arrow 15 during oil collection, the oil along the inside of the fence will flow in the opposite direction to arrow 15, and the closed baffle cloth will act so as to flow to the flow of oil. However, it plays a role of preventing oil from leaking outside from the connection part of the hedge, so when connecting a plurality of divided hedges to form a series of hedges,
Since the direction of oil flow along the inside of the fence is opposite at half the length, prepare a sewn direction of the closed type rectifying cloth 13 to the main body of the fence differently from left to right. It is considered to connect the opposite one from the half position.

[0018]

EFFECTS OF THE INVENTION The oil spill recovery system of the present invention can appropriately cope with a wide spill area because oil floating on the sea surface is collected while being towed by two ships. Depending on the number, you can adjust the total length of the fence by increasing or decreasing the number of connected fences to perform efficient collection work.Since it is divided into multiple pieces, it is easy to store when not in use. Can be stored in a small space. Even if the fence of the present invention is made of cloth, since the rod-shaped core body is included in the width direction of the fence, it does not shrink thinly in the width direction. Further, since the blocking cloth is provided so that the oil recovered from the connecting portion does not leak, the recovery efficiency is good.

[Brief description of drawings]

FIG. 1 is an overall configuration diagram showing an embodiment of the present invention.

FIG. 2 is a configuration diagram around both terminals of a fence in the same embodiment.

FIG. 3 is a perspective view in which the hedge of the present invention is cut at an arbitrary position in the longitudinal direction.

FIG. 4 is an outside perspective view of a single-length hedge when connecting a plurality of divided hedges to form a series of hedges.

FIG. 5 is an inner perspective view of the same figure.

FIG. 6 is a conventional oil recovery device shown in Japanese Utility Model Laid-Open No. 4-41520.

[Explanation of symbols]

 1 Hedge 2 First float 3 Weight 4 Second rope 5 Second float 6 Third rope 7 Tug 8 First rope 9 Traction stabilizer 10 Oil recovery device 12 Aggregate 13 Closure Shaped rectifying cloth 14 Zipper 20 Outside sea surface of the fence 21 Inside sea surface of the fence

Claims (6)

[Claims] 1. At least two ships towing the spilled oil floating on the water surface while towing by the ship, and at least two vessels towing the shoreline, and the attitude in which the shoreline is substantially perpendicular to the water surface. A first floating body for maintaining the fence, and a weight for stabilizing the fence in the lower part of the fence, and a plurality of core bodies for preventing the contraction of the fence in the width direction, The upper part and the lower part of the above-mentioned hedge are each independently formed into a bag-like binding in the longitudinal direction, and a first rope or steel rope for towing the hedge is inserted through the bag-like binding. At both ends of the fence, there are traction stabilizers wrapped and fixed integrally with the fence, and the first rope or steel rope is connected to the traction stabilizer, and further from above and below the traction stabilizer. The second rope or steel rope for towing by ship etc. is connected respectively, and the stability for the towing is concerned. The two second ropes or steel ropes connected from above and below the plate maintain a predetermined length, and then the upper and lower second ropes or steel ropes are integrated into one, and the ropes or steel ropes are included in the integrated portion. Second to keep the surface up
A spilled oil collecting device provided with a floating body, and a third rope or steel rope for connecting to a ship or the like is extended from the integrated portion, and has a connecting means for connecting to the ship or the like while maintaining a predetermined length. . 2. A series of hedges constructed by connecting a plurality of hedges in order to surround and collect oil spilled on the water while towing by a ship. A plurality of first floating bodies for maintaining a substantially vertical posture and a weight for stabilizing the buoyancy of the hedge at the lower part of the hedge are provided to prevent contraction in the width direction of the hedge. A core body is provided, and the upper part and the lower part of the hedge are independently formed into a bag-like shape in the longitudinal direction, and the bag-like part is connected to the bag-like portion to form a series of hedges. The first rope or steel rope is inserted, and both ends of the first rope or steel rope have connection portions for connecting the hedges, and the hedges are connected to one end of the hedges. In order to prevent the collected oil from leaking from the connection part of the fence when the When one of the hedges is fixed and the other is released, and a plurality of the hedges are connected to form a series of hedges, the closed-type straightening cloth at the connecting portion is a collective oil when towing the series of hedges. A single hedge, which is characterized in that the hedges are connected so as to flutter in the direction of closing the connecting portion along the flow of. 3. A single strip at both ends of a series of strips formed by connecting a plurality of strips, a floating body for maintaining a posture substantially vertical to the water surface, and the strips at both ends. At the bottom, there is a weight that stabilizes the fence with buoyancy,
It comprises a plurality of cores for preventing the widthwise contraction of the hedges at both ends, and the upper and lower portions of the hedges at both ends are independently bag-shaped in the longitudinal direction. A first rope or steel rope for connecting to the other hedge and forming a series of hedges is inserted into the rope, and one end of the rope or steel rope is connected for connecting to the other hedge. Has a section, and a closed type flow regulating cloth is provided so that the collected oil does not leak from the connection portion of the line when the abovementioned hedges are connected. The closed type flow regulating cloth is fixed to one side and released to the other side. However, the other ends of the fences on both ends have a traction stabilizer that is wrapped and fixed integrally with the fence, and the other end of the first rope or steel rope is connected to the traction stabilizer. Further, a second rope or steel rope for towing by a ship is connected from above and below the towing stabilizer. The second rope or steel ropes of two connected from the upper and lower traction stabilizer is on maintaining a predetermined length, integrated with upper and lower second rope or steel ropes to one,
A further second floating body for levitating the rope or steel rope is provided in the integral portion, and a further third rope or steel rope for towing by a ship or the like is extended from the integral portion. 3. A claw at both ends, which has a connecting means for connecting to a ship or the like while maintaining the length of the claw, and forms a series of claws by being connected to the claw according to claim 2. 4. The hedge according to claim 1, wherein, in the hedge, the plurality of core bodies that prevent the shrinkage of the hedge in the width direction is a bar material. 5. A closed type in a series of hedges formed by connecting a plurality of hedges so that when the above hedges are connected, the collected oil does not leak from the connecting portion. The single fence as claimed in claim 2, wherein half of the plurality of fences are attached to the fence in a different manner. 6. A series of hedges formed by connecting the hedges according to claim 1 and a plurality of hedges according to claim 2, wherein the fences are towed by a ship or the like. A device for collecting the collected spilled oil is installed at the bottom of the approximate parabola formed by the fence that maximizes the layer thickness of the collected spilled oil when the spilled oil is surrounded and collected in the band. A hedge to do.