JPH0995929A - Suspended oil collecting device and its method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve the collecting efficiency of suspended oil by mounting an elevating device on a supporting base erected on the bottom of the sea, and providing the elevating device with a collecting device for collecting the suspended oil, and making a suspended oil collecting device free in ascending and descending. SOLUTION: A supporting base 3 erected on the bottom 2 of the sea is composed of a pair of legs 9 and a base member 11, and a collecting pump 8 is attached to the base member 11. In the case where suspended oil 16 floating on the surface W of the sea is collected using a collecting device 1 and an oil fence F, the suspended oil 16 is first enclosed with the oil fence F. In this case, the one end of the oil fence is set on the ground R, and the other end is attached to a moving device 35. Next, the leg 9 is extended and contracted to set the supporting base 3 on the bottom 2 of the sea, and an elevating device 4 is driven to position a collecting opening on the surface W of the sea. In addition, the height of a collecting dish 5 is adjusted. On the other hand, the suction part 12 of a collecting hose 7 is led to a collecting opening, and the collecting pump 8 is actuated to feed the suspended oil 16 on the upper side of the collecting dish 5 through the collecting pump 8 from the extension part of a collecting pump 7 to a collecting bath 15.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a floating oil recovery device and a floating oil recovery method for recovering floating oil that has flowed out and floated on the sea surface due to an accident in a tanker, an oil depot, or the like.

[0002]

Floating oil that has floated to the surface of the sea due to an accident at a tanker or oil depot, and may be collected by a ship, but the ship generally has a large amount of water to drip and therefore cannot approach shallow water. It is difficult to recover enough oil.

Therefore, as shown in FIG. 14, floating oil 80
There is a system in which the floating fence 80 is collected by enclosing the oil fence 81 and floating a collecting device 82 at a predetermined position therein.

This recovery device 82 is a recovery member 84 having a plurality of floating bodies 83 and a recovery port 84a for dropping floating oil which is supported between the floating bodies 83, and a recovery member disposed below the recovery member 84. It has a recovery hydraulic pump (not shown) for recovering the floating oil 80 that has fallen from 84a into the recovery tank 86 via the recovery hose 85.

Reference numeral 87 in the drawing denotes an oil feeding device mounted on the work boat 88 for feeding pressure oil to the hydraulic pump.

[0006]

By the way, the floating oil 80 which has flown out and floated on the sea surface may be washed up to the coast. When recovering such floating oil 80,
The above-mentioned conventional recovery device 82 floats at a predetermined position on the sea and collects the floating oil 80 falling from the recovery port 84a, so it is necessary to float on the sea surface. Even when used in such shallow water, the recovery member 84 is located above the sea surface, and the floating oil 80 cannot be recovered.

Therefore, an object of the present invention is to provide a floating oil recovery apparatus and a floating oil recovery method that can solve the above problems.

[0008]

[Means for Solving the Problems] Means for solving the problems of the present invention include a support base for standing upright on the seabed,
A recovery member that is supported on the support table so as to be able to move up and down through an elevating device and has a recovery opening located on the water surface;
A recovery pump provided in the middle of a recovery hose connected to the recovery opening of the recovery member.

Further, the floating oil is surrounded by an oil fence, the recovery member is arranged on the seabed, the recovery opening is located on the water surface, and a recovery hose is connected to the recovery opening to gradually increase the area surrounded by the oil fence. While reducing the size, the recovery pump attached to the recovery hose is driven to collect the floating oil at a predetermined location with the recovery hose.

[0010]

Embodiments of the present invention will be described below with reference to the drawings. First, the floating oil recovery apparatus 1 according to the embodiment of the present invention will be described with reference to FIGS. 1 and 2. This is a support table 3 installed on the seabed 2 and a lifting apparatus 4 on the support table 3. A collection tray (an example of a collection member) 5 which is supported in a vertically movable manner via a collection hose 7, a collection hose 7 having a collection port connected to a collection opening 6 in the upper part of the collection tray 5, and the collection hose A recovery pump (for example, a hydraulic pump is used) 8 provided in the middle of 7.

The support base 3 comprises a pair of vertically extending gate-shaped legs 9 and a base member 11 to which beam members 10 of the legs 9 are attached. The recovery pump 8 has a base member 11. Installed on.

The suction part 12 at the tip of the recovery hose 7 is connected to one side of the recovery pump 8, and the extension 13 of the recovery hose 7 is connected to the other side of the recovery pump 8 via a connecting pipe member 14. The extension 13 of the recovery hose 7 is extended to the recovery tank 15 installed on the land R.

A charging port 17 for charging the floating oil 16 when the recovery pump 8 is started is formed in the middle of the connecting pipe member 14, and an operation valve 18 for opening and closing the charging port 17 is attached. The lifting device 4 includes a support column 20 erected on the base member 11 and a protrusion 21 formed in the middle of the support column 20, and a base end portion thereof is rotatably supported via a hinge member. A pair of links 22, and an elevating rod 2 supported so as to be passed to the tip end of each link 22 via a hinge member.
3 and the hydraulic cylinder device 24 whose one end is rotatably supported by the protrusion formed on the upper link 22 and whose other end is rotatably supported by the protrusion formed on the upper end of the support column 20. The collecting tray 5 is attached to the lower end of the elevating rod 23.

Next, the structure of the oil fence F will be described with reference to FIGS. 3 to 5, which is a long skirt member 25 and a columnar shape which is provided above the skirt member 25 at predetermined intervals. Floating member 26 and skirt member 25
And a wire 28 disposed along the skirt member 25 via a mounting member 27 at the lower end of the.

The structure of the moving device 35 for moving the oil fence F will be described with reference to FIGS. 3 to 13. The moving device 35 includes a sleeve-shaped engagement member 37 that is fixed at a predetermined interval while avoiding the attachment member 27 in the middle of the wire 28, a support base 3 installed on the land R side,
A chain device 40 having a moving chain 39 that rotates endlessly, a moving member 41 that is attached to the moving chain 39 and engages with the engaging member 37, and an upward movement of the wire 28 that is supported by the support base 3. Upward movement prevention means 42 for preventing
And the oil fence F is rotatably supported by the support base 3.
And a guide means 43 for guiding the movement of the.

The support base 3 has a pair of gate-shaped legs 46 that are vertically expandable and contractible, a pair of horizontal beams 47 and a pair of vertical beams 48 that vertically and horizontally connect the legs 46, and rotate on the legs 46. The wheel 50 is freely supported.

The chain device 40 has two pairs of sprockets 53 rotatably supported by a pair of short columns 51 standing on the upper surface of each transverse beam 47 via a horizontal support shaft 52.
And the moving chain 39 (for example, a roller chain is used) wound around each pair of sprockets 53.
And a drive motor 55 for rotating the horizontal support shaft 52 of the sprocket 53 facing each other, and a disk member 56 protruding inward is formed on the plate surface of each sprocket 53.

The moving member 41 is a moving chain 39.
Are mounted at predetermined intervals (substantially equal intervals to the engaging member 37) via the mounting shaft 57 on the inner surfaces facing each other, and the moving member 41 is attached to the side surface of the moving member 41.
Drop-off prevention member 58 for preventing the drop-off from
Is attached via a bolt 60, and the fall prevention member 58
A plurality of guide rollers 61 that abut on the disk member 56 of the sprocket 53 to roll are mounted on both sides of the moving member 41, and a groove 41a through which the wire 28 is inserted is formed on one side surface of the moving member 41. A concave surface 62 with which the engaging member 37 abuts is formed on the surface.

The upward movement preventing means 42 has a pair of front and rear upward movement preventing plates 63 supported by the support base 3 in a horizontal plane above the moving member 41, and a spacing between opposing sides of the upward movement preventing plates 63. For the purpose of adjustment, it is configured with a hydraulic cylinder device 65 that is connected to each upper movement prevention plate 63 via an adjusting rod 64 and is supplied with pressure oil from the oil feeding device via the oil feeding pipe 30. The spacing between the opposite sides of the plate 63 is set to be larger than the thickness of the mounting member 27 and smaller than the diameter of the engaging member 37.

The guiding means 43 is rotatably supported by two pairs of long columns 66 standing upright at both ends of each horizontal beam 47 and a horizontal support shaft 67 penetrating the upper portions of the opposing long columns 66. It is composed of two pairs of frustoconical guide rollers 68 and a pair of front and rear substantially L-shaped guide plates 70 arranged between these left and right guide rollers 68 to guide the oil fence F laterally.

In order to install the oil fence F on the moving device 35 constructed as described above, the end portion of the oil fence F is passed over the circumferential surface of the left and right guide rollers 68, and the mounting member 27 is arranged at the front and rear. The drive motor 55 is driven so as to pass through the gap between the upper movement prevention plates 63. Then, each moving chain 39 rotates, and along with this, the moving member 4
1 moves, the concave surface 62 of the moving member 41 engages with the engaging member 37, and the skirt member 25 of the oil fence F attached to the wire 28 via the attaching member 27 causes the guide roller 68 and the guide plate 70 to move. Move to be guided by.
Then, the drive of the drive motor 55 is stopped, and the movement of the oil fence F is appropriately stopped so that the oil fence F is installed in the moving device 35.

When recovering the floating oil 16 floating on the sea surface W by using the floating oil recovery device 1 and the oil fence F, first, the floating oil 16 is surrounded by the oil fence F.
At this time, one side of the oil fence F is installed on the land R, and the other side of the oil fence F is moved by the moving device 35 as described above.
Install it on.

Then, the legs 9 are appropriately expanded and contracted to set the support base 3 on the seabed 2 in the shallow water, and the hydraulic cylinder device 24 of the lifting device 4 is driven to position the recovery opening 6 on the sea surface W, and the recovery is performed. The height of the collecting tray 5 is adjusted so that the tray 5 bottoms.

On the other hand, when the suction portion 12 of the recovery hose 7 is guided to the recovery opening 6 and the recovery pump 8 is driven,
The floating oil 16 on the upper side of the recovery dish 5 is sent to the recovery tank 15 from the extension 13 of the recovery hose 7 via the recovery pump 8. When the suction unit 12 of the recovery hose 7 sucks the floating oil 16, the recovery dish 5 is bottomed below the suction unit 12, so that it is possible to prevent the sand on the seabed 2 from being sucked.

When the recovery pump 8 is started,
By opening the operation valve 18 and charging the floating oil 16 (having high viscosity) from the charging port 17, the sealing property inside the recovery pump 8 is improved and the degree of vacuum required for suction is obtained.

While the recovery pump 8 is being driven in this manner, on the other hand, the oil fence F is moved by the moving device 35.
To move. That is, when the drive motor 55 is driven, each moving chain 39 is rotated and the moving member 41 is moved accordingly, the concave surface 62 of the moving member 41 is engaged with the engaging member 37, and the attaching member is attached to the wire 28. The oil fence F attached via the guide roller 68
Also, the oil fence F is guided to the land R side by being guided by the guide plate 70, thereby gradually reducing the area surrounded by the oil fence F.

By doing so, even if the floating oil collecting device 1 collects the floating oil 16 from time to time, the thickness of the floating oil 16 can be kept constant, or the moving speed of the oil fence F can be changed depending on the case. By raising the floating oil 16, the thickness of the floating oil 16 can be increased. Therefore, even if the floating oil 16 has high viscosity,
This can be stably sent (moved) onto the recovery dish 5, and the recovery efficiency of the floating oil 16 can be improved.

In the moving device 35, the oil fence F is moved by setting the distance between the opposing sides of the upper movement preventing plate 63 to be larger than the thickness of the mounting member 27 and smaller than the diameter of the engaging member 37. At this time, even if a force that causes the oil fence F to jump up is applied, the engagement member 37 can prevent the oil fence F from jumping up by coming into contact with the opposite side portions of the upward movement preventing plate 63. .

As described above, according to the embodiment of the present invention, the height of the recovery tray 5 is adjusted by the elevating device 4 so that the recovery tray 5 bottoms and the recovery opening 6 is located at the sea surface W. The floating oil 16 is located on the recovery tray 5, the recovery pump 8 is driven, and the floating oil 16 is sucked by the suction portion 12 of the recovery hose 7. Therefore, the floating oil 16 rushed to the shallows is recovered by a simple device. can do.

When the floating oil 16 is collected, the floating fence 16 is moved by the moving device 35 so that the surrounding area of the oil fence F becomes small so that the floating oil collecting device 1 can collect the floating oil 16 at any time. Even if the amount of floating oil 16 on the sea decreases, the thickness of the floating oil 16 on the recovery tray 5 can be kept constant, or the thickness of the floating oil 16 can be increased.
Even the floating oil 16 having a high viscosity can be stably fed onto the recovery dish 5, and the recovery efficiency of the floating oil 16 can be improved without sucking sand by the recovery dish 5.

[0031]

As is apparent from the above description, the present invention is provided with a support base for standing on the seabed and a recovery base that is supported on the support base via an elevating device so as to be vertically movable and located on the water surface. Since the collection member having the opening and the collection pump provided in the middle of the collection hose connected to the collection opening of the collection member are provided, the floating oil can be collected even in a shallow water depth. Since the floating oil is collected while gradually reducing the area surrounded by the oil fence, the thickness of the floating oil surrounded by the oil fence can be kept constant or the thickness of the floating oil can be increased when collecting the floating oil. Even if the floating oil is high, it can be reliably moved onto the recovery opening of the recovery member, and thus the recovery efficiency of the floating oil can be improved.

[Brief description of drawings]

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

FIG. 2 is an overall perspective view of the floating oil recovery system.

FIG. 3 is a side view of the same oil fence.

FIG. 4 is a sectional view taken along line XX in FIG.

5 is an end view of the Y-Y line in FIG.

FIG. 6 is likewise an overall perspective view of the moving device.

FIG. 7 is likewise an overall plan view.

FIG. 8 is a schematic side view of the same.

FIG. 9 is also a perspective view of the upward movement preventing means.

FIG. 10 is a schematic front view of the same.

FIG. 11 is a plan view of the moving member.

FIG. 12 is a front view of the same.

FIG. 13 is a perspective view showing the same movement state of the oil fence.

FIG. 14 is a perspective view showing a usage state of a conventional floating oil recovery device.

[Explanation of symbols]

 1 Floating Oil Recovery Device 2 Seabed 3 Support Stand 4 Lifting Device 5 Recovery Dish 7 Recovery Hose 8 Recovery Pump 12 Suction Part 13 Extension Part 14 Connection Pipe Member 15 Recovery Tank 16 Floating Oil 25 Skirt Member 26 Floating Member 27 Mounting Member 28 Wire 35 moving device 37 engaging member 39 moving chain 41 moving member 55 drive motor 63 upper movement preventing plate 68 guide roller F oil fence

Front page continuation (72) Inventor Akio Fukuda 5-3-8, Nishikujo 5-chome, Konohana-ku, Osaka City, Osaka Prefecture Hitachi Shipbuilding Co., Ltd.

Claims (2)

[Claims] 1. A floating oil recovery device for recovering floating oil floating on the water surface at a predetermined location, and a support base for standing upright on the sea floor, and the support base being movable up and down via an elevating device. A floating oil recovery device comprising: a recovery member having a recovery opening supported on the water surface and located on the water surface; and a recovery pump provided in the middle of a recovery hose connected to the recovery opening of the recovery member. . 2. Floating oil is surrounded by an oil fence, a recovery member is arranged on the seabed, a recovery opening is located on the water surface, a recovery hose is connected to the recovery opening, and the area surrounded by the oil fence is gradually increased. A floating oil recovery method, characterized in that while recovering, the recovery pump attached to the recovery hose is driven to recover the floating oil at a predetermined location with the recovery hose.