JPS625270Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to a recovery device for oil leaked onto the sea surface due to a spill accident.

Prior Art A device is known in which oil spilled onto the sea flows into a container, and an oil layer floating on the water surface of the container is deposited on the surface of a rotating drum, which is then scraped off to recover the oil. (US Pat. No. 3,245,539) In this device, a drum is placed horizontally near the water surface and is rotated to deposit oil on the surface. According to this structure, it is not possible to thicken the oil layer that can adhere to the surface of the drum, and since the drum does not have the function of collecting the oil layer inside the container, the oil recovery efficiency is poor, and the drawback is that it is small and cannot improve processing capacity. .

Purpose This device was developed to eliminate this drawback, and the important purpose of this device is to scrape up the oil layer floating in the separation chamber and collect it in the oil chamber.
It can efficiently collect the oil layer floating on the water surface of the separation chamber, is small and has high processing capacity, and can be easily and quickly moved to the site because it adjusts the amount of water supplied to the separation chamber and controls the water line of the hull. To provide sea surface oil leak recovery equipment.

Configuration Hereinafter, embodiments of this invention will be described based on the drawings.

The sea surface oil leakage recovery device shown in FIGS. 1 and 2 consists of a hull 3 divided into an oil separation chamber 1 and an oil chamber 2.
and an oil collecting means 4 for transporting the oil in the separation chamber 1 to the oil chamber 2.
and a drainage means 5 for discharging seawater in the separation chamber 1.
The vessel is also provided with a swamp means 6 for controlling the swamp line of the hull 3.

The hull 3 has a box-like overall shape, and the separation chamber 1 has a collection port 7 opened in the front. The lower edge of the collection port 7 is located below the collection waterline 8 and above the floating waterline so that the oil layer flows in together with seawater from the collection port 7.

A scooping plate 10 is disposed in the collection port 7. The lower edge of the scooping plate 10 is connected to the hull 3 via a pivot joint so that the scooping plate 10 is tiltable. A flexible film 11 with no water permeability is adhered to the mounting portion to prevent seawater from flowing in there.
A rolling tip 12 is fixed around the hull 3 to prevent rolling and pitting.

The separation chamber 1 and the oil chamber 2 are separated by a partition wall 14 whose upper edge is somewhat higher than the liquid level of the separation chamber so that the oil in the separation chamber 1 can be transferred to the oil chamber 2 by an oil layer collecting plate 13. As shown in FIG. 3, the upper part of the partition wall 14 is provided with an inclined plate 15 having an upward slope in the direction of movement of the oil layer collecting plate 13. This inclined plate 15 is
The lower edge is connected to the upper edge of the wall via a shaft joint so that the height of the upper edge can be adjusted so that it can tilt freely, and the connection point is made watertight with a film.

The oil collecting means 4 is a sprocket 1 which is a pulley.
6, it is connected to a chain 17 which is a string-like body stretched from above the separation chamber 1 to above the oil chamber 2, and the lower edge moves along the water surface of the separation chamber 1. It consists of an oil layer collecting plate 13 that moves toward the oil chamber 2 over the partition wall 14, and a motor 18 that drives a sprocket 16.

As shown in FIG. 1, the sprocket 16 is supported on both sides of the oil chamber 2 and near the collection port of the separation chamber. Sprocket 16 supported above oil chamber 2
is fixed to the drive shaft 19, and the drive shaft 19 is connected to the motor 1.
8 and rotated.

The chain 17 is moved along a chain guide 20 as shown in FIGS.
The chain guide 20 sandwiches the chain 17 from above and below with almost no gap, allowing the chain to move without meandering.

The shaft of the oil collecting plate 13 is connected to the chain 17 via a bearing 21 so that it can rotate freely in a vertical plane.
is connected to. As shown in FIGS. 4 and 5, there are rolls 22 on both sides of the oil layer collecting plate 13.
The roll 22 is supported by a chain guide 2 surrounding the sprocket 16, as shown in FIG.
0, thereby tilting the oil layer collecting plate 13 and rotating it by about 130 degrees.

The oil layer collecting plate 13 has a full width approximately equal to the inner width of the separation chamber 1, and its tip is bent into an L-shape in the traveling direction, and a rubber-like elastic body 23 is fixed to this bent portion. The rubber-like elastic body 23, as shown in FIG.
The oil in the upper layer of the separation chamber 1 is sent to the oil chamber by moving along the upper surface of the inclined plate 15 without adhering to the upper surface of the inclined plate 15.

The drainage means 5 is a drainage pump whose suction side is connected to the bottom of the separation chamber 1 , and the suction pipe of the drainage pump is connected to a water collection chamber 24 arranged at the bottom of the separation chamber 1 . The bottom of the water collection chamber 24 is communicated with the separation chamber 1, and seawater at the bottom of the separation chamber flows into the water collection chamber 24. The discharge side of the drainage pump is led to the outside of the ship, and the seawater in the separation chamber 1 is drained out of the ship.

A perforated plate 30 is provided at the bottom of the separation chamber 1, and water is uniformly sucked in from the entire bottom surface of the separation chamber 1 by the perforated plate 30, and this water is collected in the water collection chamber 24.

The water retrieval means 6 is an injection pipe 25 that communicates with the inside and outside of the hull.
and a water injection valve 26 which is an opening/closing member connected in the middle of this water injection pipe 25.The injection valve 26 is opened to inject seawater into the hull, and the hull 3 is collected from the water line 8.
Let it settle until it settles.

Some amount of seawater flows into the oil chamber 2 by the oil layer collector plate 13 . As shown in Figure 2, this seawater is
The suction pipe can be evacuated by means of a displacement pump 27 connected to the bottom of the oil chamber.

Although not shown, a pump can be used as the opening/closing member instead of the injection valve. When injecting seawater with a pump, the injection pipe does not necessarily need to be installed below the rising water line.

Operation As shown in FIG. 6, the oil leakage recovery device configured as described above has an oil fence 28 on the sea, and causes oil floating on the sea to flow into the separation chamber 1.
In the hull 3, the injection valve 26 is opened in advance to inject seawater into the separation chamber 1, and the hull is lowered to the collection water line 8. The injection valve 26 closes when the hull 3 sinks to the collection waterline 8.

Seawater in the separation chamber 1 is drained out of the ship by a drainage pump. Seawater with oil floating in the upper layer flows into the separation chamber 1. The oil layer floating on the seawater in the separation chamber 1 is sent from the separation chamber 1 over the partition wall 14 into the oil chamber 2 by an oil layer collection plate 13 driven by a motor 18.
The oil in the oil chamber 2 is transferred to oil carriers 29 on both sides using an oil pump.

The stuttering of the hull 3 varies depending on the amount of seawater discharged by the drainage means 5. When the discharge amount of the drainage means 5 becomes larger than the amount of seawater flowing into the separation chamber from the collection port, the seawater in the separation chamber decreases and the hull 3 floats above the collection water line 8. Therefore, the operation of the drainage means 5 is controlled by, for example, a level sensor in the separation chamber (not shown) so as to keep the liquid level in the separation chamber constant at all times.

Although not shown, it is also possible to provide a ballast tank inside the hull and control the amount of water injected into the ballast tank to adjust the water intake of the hull. In this case, the amount of seawater flowing into the separation chamber can be adjusted using the ballast tank.

Effects The oil leakage recovery device configured as described above has a hull divided into a separation chamber and an oil chamber, an oil collecting means for sending oil in the separation chamber to the oil chamber, and a means for discharging seawater at the bottom of the separation chamber to the outside of the ship. The oil collection means includes a drainage pump that adjusts the water intake of the hull, and a water collection means that extends from the separation chamber to the oil chamber and is stretched above the oil chamber.
It consists of a motor that drives this string-like body and an oil layer collecting plate connected to this string-like body, and this oil layer collecting plate is
It is configured to scrape up the oil layer floating on the water surface of the separation chamber and send it to the oil chamber, so the oil layer inside the separation chamber is collected and sent to the oil chamber.
Moreover, even a thick layer of oil is efficiently sent into the oil chamber. Therefore, compared to conventional oil recovery equipment, it is smaller and has higher processing capacity.

Furthermore, the seawater in the separation chamber is drained, the hull is floated to the surfacing water line, and in this state it can be easily and quickly moved to the site.

[Brief explanation of the drawing]

Figures 1 and 2 are a plan view and a sectional view of an oil leak recovery device showing an embodiment of this invention, Figure 3 is a sectional view showing an upside-down portion of the oil layer collecting plate, and Figures 4 and 5 are The figures are a sectional view and a side view of the chain guide, and FIG. 6 is a plan view showing an example of the state of use. 1... Separation room, 2... Oil room, 3... Hull, 4...
...Oil collecting means, 5...Draining means, 6...Hatchling means,
7... Collection port, 8... Collection water line, 9... floating water line, 10... scooping plate, 11... film, 12
...Rolling chip, 13...Oil layer collecting board, 14
... Bulkhead, 15 ... Inclined plate, 16 ... Sprocket, 17 ... Chain, 18 ... Motor, 19 ...
... Drive shaft, 20 ... Chain guide, 21 ... Bearing, 22 ... Roll, 23 ... Rubber-like elastic body, 2
4... Water collection room, 25... Water injection pipe, 26... Injection valve, 27... Exclusion pump, 28... Oil fence, 29... Oil carrier, 30... Perforated plate.

Claims (1)

[Claims for Utility Model Registration] (1) A hull divided into an oil separation chamber and an oil chamber, an oil collection means for conveying oil in the separation chamber to the oil chamber, and a drainage system for discharging seawater in the separation chamber. The separation chamber of the hull has a lower edge opening with a collection port located below the collection water line and above the floating water line, The separation chamber and the oil chamber are separated by a partition wall whose upper edge is slightly higher than the liquid level in the separation chamber, and the oil collecting means is stretched from above the separation chamber to above the oil chamber via a pulley. an oil collecting plate connected to the string-like body and whose lower edge moves along the water surface of the separation chamber and moves across the partition wall toward the oil chamber; and a motor that drives the pulley. The drainage means has a suction side connected to the bottom of the separation chamber and a discharge side led to the outside of the ship, and the stanchion means has a water injection pipe communicating inside and outside the ship;
This water injection pipe is equipped with an opening/closing member connected to the middle of the pipe, and by allowing seawater to flow into the separation chamber through the opening/closing member, the hull at the floating water line is lowered to the collection water line, and this state is maintained. Seawater with floating oil flows into the separation chamber from the collection port, the oil layer floating in the separation chamber is collected into the oil chamber by an oil layer collecting plate, and the seawater at the bottom of the separation chamber is drained out of the ship using a drainage pump. Oil leak recovery equipment on the sea surface. (2) The sea surface oil leak recovery device according to claim 1, wherein the upper end of the partition wall is sloped upward from the separation chamber to the oil chamber. (3) The sea surface oil leak recovery device according to claim (1) of the utility model registration claim, wherein the leading edge of the oil layer collecting plate is a rubber-like elastic body.