JP2957892B2 - Water-flow type oil recovery device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water flow type oil recovery apparatus, and more particularly, to an oil recovery apparatus of the type which separates and recovers contaminated water including oil floating on the water surface by a relative flow. It is about.

[0002]

A prior art and the invention is to provide a conventionally, accidents such as water-jet oil recovery apparatus in which the oil contaminated water, including oil that is floating in the water surface so as to separate and recover by using the relative flow by the Have been proposed and shared for the convenience of consumers.

[0003] In this water-flow type oil recovery apparatus, for example, as disclosed in Japanese Patent No. 932639 (Japanese Patent Publication No. 53-8378), the relative flow of contaminated water containing oil floating on the water surface caused by forward running of the hull is known. And introducing the contaminated water to the cyclone chamber through an intake port opened in a tangential direction of the cyclone chamber,
Next, oil is separated in the central region of the vortex generated in the cyclone chamber, and the oil is suctioned by an oil absorption pipe disposed on the axis of the cyclone chamber, collected in a recovery oil tank, and purified water is discharged to the lower outside of the cyclone chamber. It is configured to discharge from the provided discharge port.

[0004] However, in the water-flow type oil recovery device configured as described above, when the forward speed of the hull increases and the relative speed increases, the contaminated water introduced into the tubular device body gradually increases. It stays inside the tubular device body, and eventually the tubular device body itself becomes a resistor (orifice) and conversely overflows (escapes) to the outside, which not only reduces the oil recovery efficiency but also escapes. Various problems to be solved have been pointed out, such as the spread of the oil component over a wide range.

[0005]

Accordingly, in the present invention,
Utilizing a relative flow generated by the forward movement of the hull, a water-flow type oil recovery device configured to guide contaminated water containing oil into the device body and discharge purified water after separating and recovering oil from the contaminated water. your stomach, non-to purified water outlet end
Powered negative pressure generating means, preferably with a trumpet-shaped tube
It is characterized by having been established.

According to the present invention, the above-mentioned means are adopted.
Creates a negative pressure area near the outside of the purified water discharge port.
This allows forcible suction of purified water
Drain to the outside to prevent oil from spilling out of the device as much as possible
To improve the efficiency of oil recovery.
You.

Further, the upstream position in the water flow direction in the clarified water outlet end, for example, propeller walk is realized by positioning a powered water generating device such as a jet <br/> preparative injection type, relative flow Even when the hull is not stopped, the oil recovery operation can be suitably performed.

Further, a convex portion functioning as a dive weir is provided at the contaminated water inlet of the apparatus main body, and the contaminated water is returned by the synergistic action with the suction of the purified water by the negative pressure generating means. The diffusion of the oil component can be suitably prevented.

[0009]

According to the present invention, the purified water from which the oil is separated and recovered by the negative pressure generating means in the negative pressure region formed near the outside of the purified water discharge port is constantly sucked and forcibly discharged. Therefore, a large amount of contaminated water in the main body of the apparatus can be introduced without spilling (escape), and oil-water separation can be performed efficiently to achieve an oil recovery operation.

In the case where a power type water flow generator such as a propeller type or a jet injection type is disposed upstream of the end of the purified water discharge port, even when the hull is stopped, a relative flow is generated to contaminate the water. Since the introduction and the purification water can be discharged, the oil recovery operation can be performed more efficiently.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of a water-flow type oil recovery apparatus according to the present invention will be described below in detail with reference to the accompanying drawings.

1 and 2, a water flow type oil recovery apparatus 10 according to the present invention includes a tubular apparatus main body 12 attached to the side of a hull A, a cyclone chamber 14 connected to the apparatus main body 12, and a cyclone. A non-powered negative pressure generating means 16 attached to the chamber 14 and an oil recovery mechanism 18 separated from contaminated water are provided. In FIG. 1, the water-flow type oil recovery device 10 is shown only on one side of the hull A, but is normally arranged on both sides to perform the oil recovery operation.

The cylindrical device main body 12 is provided with an inlet 20 which opens in the direction of travel of the hull A for introducing contaminated water containing oil. The opposite side of the cylindrical device main body 12 is The cyclone chamber 14 is connected to an oil / water intake port 22 opened along a tangential direction. In addition, introduction port 2
The contaminated water introduced from 0 is smoothly guided to the oil water intake 22 by the curved introduction plate 24. In addition, a convex part 25 functioning as a dive weir is provided below the water surface of the inlet 20 so as to prevent diffusion of oil due to return of the introduced contaminated water.

An oil absorption pipe 26 is provided at an upper portion in the axial direction of the cyclone chamber 14 connected to the apparatus main body 12, and the oil absorption pipe 26 is provided with a suction pump device 27 and a suction pump device 27 installed on the hull A. Oil recovery mechanism 1 including recovery oil tank 28
8. On the other hand, a purified water discharge port 30 is opened in the lower tangential direction of the cyclone chamber 14, and a trumpet-shaped tube 32 as the non-powered negative pressure generating means 16 is attached to the purified water discharge port 30. In the vicinity of the outside of the opening of the flared tube 32, a negative pressure region 34 is formed by forward movement of the hull A.

In the water-flow type oil recovery device 10 according to the present invention configured as described above, when the hull A is moved forward at a predetermined speed, the relative flow is generated, and the contaminated water containing oil floating on the water surface is supplied to the inlet port. The oil is introduced into the cylindrical body 12 through the pipe 20, and further flows along the curved introduction plate 24 from the oil / water inlet 22 into the cyclone chamber 14. In this case, the return wave due to the contaminated water introduced into the cylindrical main body 12 is suitably prevented by the dive function of the convex portion 25. The contaminated water that has flowed into the cyclone chamber 14 from the oil water inlet 22 in this way becomes a vortex in the cyclone chamber 14 due to the action of the relative flow and is centrifuged into the oil collected in the central area and the remaining purified water. You.

The oil collected in the central region of the cyclone chamber 14 by the centrifugal action is collected and stored in the oil collecting tank 28 through the oil absorbing pipe 26 by the pumping action of the suction pump device 27.

On the other hand, the purified water from which the oil has been separated is drained to the outside through a purified water discharge port 30 which opens in the lower tangential direction of the cyclone chamber 14 while exhibiting a vortex. Tube 32 (non-powered negative pressure generating means 1)
6) is attached, and the negative pressure region 34 is formed near the outside of the opening by the drainage flow of the purified water, so that the purified water is forcibly sucked from the cyclone chamber 14 and discharged to the outside. become.

Incidentally, the suction operation of the purified water is performed by
The diffusion of the oil component due to the return of the contaminated water introduced into the apparatus main body 12 can be suitably prevented by the synergistic action of the convex portion 25 disposed at the contaminated water introduction port 20 and the submerging weir action. Needless to say. Therefore, it is possible to efficiently collect the oil by centrifuging the oil without introducing a large amount of contaminated water into the cylindrical device main body 12 and causing the contaminated water to overflow (escape).

As shown in FIG. 3, the purified water outlet 3
At a position upstream of the water flow direction (arrow) at the zero end, for example, a powered water flow generation device 4 such as a propeller device 36 (see FIG. 3A) or a water jet device 38 (see FIG. 3B).
If 0 is provided, a relative flow can be generated in the contaminated water even when the hull A is stopped, so that the oil recovery operation can be more efficient.

FIG. 4 shows an apparatus main body 12 provided with a dust collection mechanism 42 and an inclined plate 44 at the front of the hull A,
The contaminated water introduced into the apparatus main body 12 is guided to an oil collecting well 46 via an inclined plate 44, and the oil floating in the oil collecting well 46 is collected in a collecting oil tank 28 via an oil / water separator 48. Further, the purified water is drained to the outside through a trumpet-shaped tube 32 (non-powered negative pressure generating means 16) attached to the discharge port 30 according to the present invention.
In this case as well, in this case, too, a large amount of contaminated water is introduced into the apparatus main body 12 as described above, and the oil can be efficiently separated and recovered without overflowing (escape). It is.

In the case of this embodiment as well, if a motive water flow generator (not shown) such as a propeller device or a water jet device is disposed upstream of the purified water discharge port 30, the hull A can be stopped. It goes without saying that the oil recovery operation can be suitably performed even at times.

[0022]

As described above, according to the water-flow type oil recovery apparatus of the present invention, the purified water from which the oil has been separated and recovered can be discharged to the discharge port by providing the non-powered negative pressure generating means. The negative pressure area formed near the outside constantly sucks and discharges, so that a large amount of contaminated water can be introduced and oil-water separation can be achieved without overflow (escape). be able to.

Also, the horn-shaped tube as the non-powered negative pressure generating means has a simple structure, so that maintenance is easy, and furthermore, a power source such as a propeller type or a jet injection type is provided upstream of the purified water discharge port. A water flow generator is installed so that relative flow is generated even when the hull is stopped, and contaminated water is introduced.
It has various advantages such as being able to preferably recover oil and discharge purified water, and also to suitably prevent diffusion of oil due to the return of contaminated water introduced into the apparatus body. is there.

The preferred embodiment of the water-flow type oil recovery apparatus according to the present invention has been described above. However, the present invention is not limited to this embodiment, and various modifications may be made without departing from the spirit of the present invention. Of course, design changes can be made.

[Brief description of the drawings]

FIG. 1 is a schematic plan explanatory view showing a state in which a water-flow type oil recovery device according to the present invention is disposed on a hull.

FIG. 2 is an explanatory side view of the water-flow type oil recovery device shown in FIG.

FIG. 3 is a side elevational view corresponding to FIG. 2 of another embodiment of the water flow type oil recovery device according to the present invention, wherein a is a water flow type oil recovery device provided with a propeller type power type water flow generation device. , B
Is a water flow type oil recovery device provided with a water jet type power flow type water flow generation device.

FIG. 4 is an explanatory view showing a state in which still another water-flow type oil recovery device according to the present invention is incorporated in a hull.

[Explanation of symbols]

10 water flow type oil recovery device, 12 device body,
14 cyclone chamber, 16 non-powered negative pressure generating means, 1
8 oil recovery mechanism, 20 inlet, 22 oil water intake, 24 curved introduction plate, 25 convex part,
26 oil absorption pipe, 27 pump device,
28 Recovery oil tank, 30 Purified water outlet, 32
Trumpet tube, 34 negative pressure range, 36 propeller device,
38 water jet device, 40 powered water flow generator, 42 refuse collection mechanism, 44 inclined plate, 46
Oil collection well, 48 oil-water separator,

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int.Cl. ⁶ , DB name) C02F 1/40 B63B 35/32

Claims (3)

(57) [Claims] 1. A water flow configured to guide contaminated water containing oil into an apparatus main body by utilizing a relative flow generated by forward movement of a hull, and to discharge purified water after separating and recovering oil from the contaminated water. In the oil recovery device of the type, a trumpet-shaped tube is provided at the end of the purified water discharge port as a non-powered negative pressure generating means along the water flow direction at the end of the purified water discharge port .
And a negative pressure zone is formed near the outside of this purified water discharge port.
A water-flow type oil recovery device. 2. The water flow type oil recovery device according to claim 1, wherein a power type water flow generation device is disposed at an upstream end of the purified water discharge port in the water flow direction. 3. The water flow type oil recovery device according to claim 1, wherein a convex portion functioning as a dive weir is provided at a contaminated water inlet of the device main body.