JP2001011843A - Collection device for spilled oil on water surface - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a collection device of spilled oil on the water surface capable of being more efficiency used with less labor in comparison with a conventional method for scooping the spilled oil with a ladle. SOLUTION: A collection device of spilled oil on the water is equipped with an oil gathering section 1 gradually narrowing the capacity in an interior space (a) thereof upward from below the oil gathering section like a funnel placing the bottom upward or a semi-spherical shell body and having a form providing an overflowing outlet 3 of the oil to the upper end thereof to push it against the water surface suspending oil thereon and an oil sump forming section 2 continuously provided to the circumferential edge of the lower end to form an oil sump (b) receiving oil flowing out from the overflowing outlet 3. Handles 5 and 6 can be provided to the upper edge of the oil sump forming section 2.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a method for easily and efficiently removing floating oil spilled to the sea in a relatively narrow limited area, for example, following a tanker grounding accident. The present invention relates to a device for collecting oil floating on the water surface, which can be separated and collected.

[0002]

2. Description of the Related Art When recovering a large amount of floating oil on a large scale, surround the floating area of the oil with an oil fence, and then use a vacuum cleaner type oil absorbing device or drop an oil absorbing mat on the sea surface. Methods such as collecting oil-absorbing mats have been adopted. In the case of recovering floating oil in a limited area near a coast or the like by human tactics, a method of drawing floating oil with a ladle has been adopted.

[0003]

However, in the method of sucking and collecting with an oil absorbing device, especially when the oil layer is thin, the water on the lower side tends to be sucked together. Also, the oil absorption mat
It is uneconomical because it is disposable, and there are also problems associated with the treatment of oil-absorbed mats. Furthermore, according to the method of scooping oil with a ladle, seawater is easy to scoop up at a considerable rate together with oil, and although it requires a lot of labor,
Oil recovery efficiency was not good.

Accordingly, an object of the present invention is to provide an apparatus for collecting oil floating on the water surface, which enables more efficient recovery work with less labor than ladles and the like conventionally used.

[0005]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a system for recovering oil floating on the surface of water, which can easily and efficiently remove oil or the like spilled to the sea in the event of a tanker accident. A device for separating and recovering oil from the inside, such as a funnel or a hemispherical shell placed face down, the volume of the inner space a gradually narrows from below to above, and the oil overflow port 3 is provided at the upper end thereof. The oil collecting section 1 for pressing the oil on the surface of the floating water, and the oil collecting section 1 is connected to the lower end periphery of the oil collecting section 1 so that the oil flowing out of the overflow port 3 is provided. An oil reservoir forming section 2 for forming an oil reservoir b to be received is provided. The upper edge of the oil reservoir forming portion 2 has a handle 5
Or 6 may be provided.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described below with reference to FIGS. The collection device A1 of this embodiment has a vertical sectional view and a perspective view,
As shown in FIGS. 1 and 2, an oil collecting unit 1 having a form in which a funnel or a wrapper is placed face down to cover the water surface W on which the floating oil O floats (see FIG. 4). The oil collecting portion 1 is provided with an oil sump b
And an oil sump forming part 2 for forming the above.

The oil collecting section 1 of this embodiment is made of plastic or metal, and has its expanded end directed downward as described above. Therefore, the inner space a of the oil collecting section 1 is gradually narrowed from below to above. An overflow port 3 of the collected floating oil O is opened at the narrowed upper end.

The oil reservoir forming portion 2 of this embodiment, which is formed integrally with the oil collecting portion 1, forms a cylindrical body whose diameter gradually expands toward the upper edge side. Is provided with a reinforcing flange 4 in a folded shape.

The collecting device A1 having an integrated structure can be efficiently mass-produced by injection molding or vacuum molding of plastic or press molding of a metal plate.

Next, how to use the collecting device A1 will be described with reference to FIGS. First, as shown in FIG. 3, the recovery device A1 is carried on the water surface W where the floating oil O is floating. Then, as shown in FIG. 4, the collection device A1
Is pressed against the water surface W (see arrow F), and the oil collecting section 1 is
The oil layer of the floating oil O on the water surface W is covered. However, in the case of the recovery device A1 having a specific gravity heavier than 1, some of the recovery device A1 is settled below the water surface W by itself.

Since the volume of the inner space a of the oil collecting unit 1 is gradually reduced from the lower end to the upper end, when the lower portion of the recovery device A1 is sunk below the water surface W, the inner space a Oil O floating on the water surface W in a state of being trapped in the water
Is pushed above the inner space a. Due to the temporarily increased air pressure in the inner space a, the upward force (see arrow f) for the water surface W once pushed down to return to the height of the surrounding water surface W also exerts an upward force on this pushing up. .

When the pushed floating oil O reaches the overflow port 3 at the upper end of the inner space a, it overflows outside the oil collecting section 1 and is stored in the oil sump b on the outer periphery thereof. Will be.

When the collecting device A1 is kept pressed against the water surface W and the floating oil O does not come out from the overflow port 3, the collecting device A1 is once pulled up from the water surface W. After that, the above oil recovery operation may be repeated. The floating oil O accumulated in the oil reservoir b may be transferred to an oil storage tank (not shown) such as a drum can prepared in a timely manner.

FIG. 5 shows a recovery apparatus A2 according to a second embodiment of the present invention. Oil collection unit 1 of this recovery device A2
Is made like a bowl. Therefore, the volume of the inner space a is larger than that of the trumpet type or funnel type, and is suitable for the case where the layer of the floating oil O is thick.

On the other hand, in the case where the oil collecting section 1 has a trumpet shape or a funnel shape, the floating oil O enclosed in the inner space a by the oil collecting section 1 is pushed to the overflow port 3. Because it is easy to raise,
It is suitable when the layer of the floating water O is thin.

At the upper edge of the oil reservoir forming portion 2, a handle portion 5 such as a handle of a pot is attached at a plurality of places, or a long handle-like handle portion 6 is provided to make the collection device A2 easy to handle. are doing. The handles 5, 6 may be connected to an arm or the like of a working robot.

In each of the above embodiments, the configuration of the details can be variously changed. For example, if the oil reservoir forming section 2 is provided with a drain port with a lid, the operation of discharging the accumulated oil becomes easier.

[0018]

As is apparent from the above description, the apparatus for recovering floating oil on the water surface according to the present invention is practically superior to the conventional method for scooping and collecting floating oil with a ladle as shown below. It works. (A) Floating oil can be separated and recovered from water very simply with an extremely simple operation of pressing the recovery device on the surface of the floating oil. (B) Even if the floating oil layer is quite thin, it can be recovered with almost no water. (C) Since it is an integral structure, it can be mass-produced at extremely low cost. (D) Due to its shape, the devices can be stacked compactly and stored compactly.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view of a recovery device according to a first embodiment of the present invention.

FIG. 2 is a partially broken perspective view of the same.

FIG. 3 is a sketch showing a state in which the recovery device is brought above the surface of the surface where floating oil floats.

FIG. 4 is a longitudinal sectional view showing a state in which floating oil is being separated and collected.

FIG. 5 is a longitudinal sectional view of a recovery device according to a second embodiment.

[Explanation of symbols]

 A1, A2 Collection device 1 Oil collecting part 2 Oil reservoir forming part 3 Overflow port 4 Reinforcement flange 5, 6 Handle part a Inside space b Oil reservoir O Floating oil W Water surface

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 2D025 BA21 4D051 AA01 AB07 CA01 DD01 DD23 DD25 DD30

Claims (2)

[Claims] 1. A device for easily and efficiently separating and recovering oil or the like that has flown out of the water at the time of a tanker accident from the water surface, such as a funnel or a hemispherical shell placed face down. The volume of the inner space a is gradually narrowed from the lower side to the upper side, and has a form in which an oil overflow port 3 is provided at an upper end thereof, and an oil collecting section 1 for pressing the oil on a water surface on which the oil floats. And an oil reservoir forming portion 2 connected to a peripheral edge of a lower end of the oil collecting portion 1 for forming an oil reservoir b for receiving the oil flowing out from the overflow port 3. A device for collecting oil floating on the water surface. 2. The apparatus for collecting floating oil on the water surface according to claim 1, wherein a handle portion 5 or 6 is provided on an upper edge of the oil reservoir forming portion 2.