JPS5984688A - Effluent oil recovery device - Google Patents

Abstract

PURPOSE:To efficiently perform the effluent oil recovery by spraying water through multiple nozzles of a spray tube supported by buoyancy tanks capable of adjusting the buoyancy, collecting the floating oil and introducing it to a water collecting section, and recovering the oil having spilt over it through an oil collecting tank. CONSTITUTION:When the oil having flown out of a ship, etc. is to be recovered, first the buoyancy of buoyancy tanks 1, 1' is properly adjusted with a pump 7 so that the draft is at a level shown in the figure. Next, a pump is operated and the water in the water area 14 surrounded by the buoyancy tanks 1, 1' is made to flow from the left side to the slant upper direction on the right side, thereby mainly the upper layer water is fed to the water area 14 direction from an inlet section 13 at the rear of this device. Then, the effluent oil 15 on the surface is guided to a recessed section 2 for collecting water through a water acquisition section 12 above a water collecting plate 5 together with the surface layer water, and the oil 15 having spilt over a shuttering board near the surface of the recessed section 2 is made to flow into an oil collecting tank 3, and it is sucked by a pump 8 to be sent to an oil/water separator not shown in the figure.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in an apparatus for recovering oil spilled from a ship or the like.

Conventionally, if the amount of oil spilled from a ship is small, it is usually handled by surrounding it with an oil fence and adding a neutralizing agent into it. Disposal of spilled oil from use is not only undesirable from the standpoint of preserving the environment, but also has the drawback of requiring a lot of time.

The present invention can remove small amounts of spilled oil from ships, etc. within a short time.
This system was proposed with the aim of providing a spilled oil recovery device that can automatically and efficiently recover spilled oil. The jet pipe has a nozzle, the middle part is connected to a water collecting plate, and the front end is connected to the rear end edge of the water collecting plate by a weir plate having a notch in the center of the upper part. The upper part between the buoyancy tank and the jet pipe is opened, and a recess for collecting water is provided on the weir plate side of the water collection plate, and an oil collection tank is attached to the front of the weir plate, and the oil collection tank is attached to the jet pipe. This invention relates to a spilled oil recovery device characterized in that it is provided with a water supply means and a drainage means from an oil collection tank.

Hereinafter, the present invention will be explained and explained in detail with reference to embodiments shown in FIGS. 1 to 6. In Figure 1, 1,1'
is a pair of buoyant tanks, the buoyancy tank 1
, 1' has a jet pipe 4 having a plurality of obliquely upward nozzles 4a (five in the illustrated example) at the rear end, a water collection plate 5 at the middle part, and a weir plate at the front end. It is integrally connected by Party B. Note that the rear edge 5 of the water collection plate 5 (
Between Z and the jet pipe 4 (buoyancy tanks 1, 1'
A water collecting recess 2 is formed on the weir plate 6 side of the water collecting plate as shown in FIG. Furthermore, as shown in FIG. 6, a notch 10 is provided at the center of the upper part of the weir plate B, and the width of the notch 100 is narrower than the width of the oil collecting tank 6, which will be described later, and its depth is When water is poured into the buoyancy tanks 1 and 1' through a pipe system (not shown) using a pump 7, which will be described later, and the water is removed,
The bottom surface 10a of the notch 10 is set to be located slightly below the water surface.

The oil collection tank filter is attached to the front surface of the weir plate 6 as shown in FIGS. 1 and 2. Reference numeral 7 denotes a pump fixedly installed at a suitable location on the buoyancy tank. The discharge side is connected to the jet pipe 4 via piping, and when the pump 7 operates, the water collection recess 2
The water inside is sprayed obliquely forward and upward from each nozzle 4a of the jet pipe 4, and is circulated. Reference numeral 8 denotes a pump installed at an appropriate location on the buoyancy tanker. The suction side of the pump 8 is connected to the bottom of the oil collection tank B via piping, and the operation of the pump 8 drains the oil collection tank. The water containing oil is sucked out and sent to an oil-water separator (not shown).

In addition, 11 is a float inserted into the oil collection tank filter,
The float 11 has the role of preventing air from being sucked in from the liquid surface when the pump 8 sucks oil-containing water in the oil collecting tank 6.

One embodiment of the device of the present invention is constructed as described above, and the buoyancy of the buoyancy tanks 1, 1' is appropriately adjusted by the pump 7, so that the stuttering water is maintained in the state shown in FIGS. 2 and 6. After adjusting the amount, pump 7 is activated. Then, as shown in FIG. 4, the jet from each nozzle 4a of the jet pipe 4 causes
The water in No. 4 is discharged from the left side toward the right side, and the flow induced by this jet jet mainly sends water from the surface layer toward the water area 14 from the spout 16 at the rear of the device. . Naturally, this jet stream mixes with surrounding water, so all the water that flows into the water area 14 from the spout 16 is transferred to the water collection plate 5.
The water is not sucked into the water collection pipe 9 through the water intake part 12 at the upper part of the water collection plate 5, and a part of the water is not sucked into the water collection pipe 9 through the water intake part 12 at the upper part of the water collection plate 5.
' After a period of time, it flows out of the device. The water flowing into the water collection recess 2 through the water intake section 12 is mostly surface water, and spilled oil 15 is present on the surface. Since the specific gravity of this spilled oil 15 is lighter than that of water, as shown in FIG. It flows into the oil collection tank filter through the notch 10. The water containing spilled oil that flowed into this oil collection tank 6.

It is sucked by the pump 8 and sent to an oil-water separator (not shown).

After all the spilled oil has been collected as described above,
The water in the buoyancy tanks 1, 1' is removed by the pump 7, the water in the water system is raised, and the bottom surface 1 of the inlet 10 of the weir plate 6 is removed.
0a Soil on the water surface. In this case, water containing spilled oil remains in the oil collection tank 6, but when this is sucked out by the pump 8, the water level in the oil collection tank B falls, and the float 11 follows the water level and descends. All spilled oil is recovered without suction of air from the liquid surface.

Since the device of the present invention has the above-described configuration and operation, according to the present invention, (1) the jet flow from each nozzle 4a of the jet tube 4 near the water surface is directed toward the water surface; Since it is discharged into the water area 14 from the surrounding area, it has the effect of introducing a large amount of surface water from the surrounding area into the water area 14.
2, the effect of introducing surface water is doubled, so extracted oil that exists only near the surface layer can be efficiently collected in the four water collecting parts 2.

(2) The water containing spilled oil that has efficiently flowed into the water collection recess 2 from the water intake part 12 as described above is pressed against the weir plate 6 and increases its thickness, so that it flows through the notch 10. The oil is efficiently collected into the oil collection tank 6.

The following practical effects can be mentioned.

In addition, as shown in the illustrated example, a float 11 is installed inside the oil collecting tank filter.
When charged, there is an advantage that the spilled oil can be collected more effectively by the pump 8 without sucking air from the liquid surface.

[Brief explanation of the drawing]

1 to 3 are schematic explanatory diagrams of one embodiment of the present invention, in which FIG. 1 is a plan view, FIG. 2 is a longitudinal sectional view, and FIG. 6 is a view taken along the line III-III in FIG. FIG. 4 is an explanatory diagram of the operation mode of this device. 1, 1': Buoyancy tank, 2: Water collection recess, 6: Oil collection tank, 4: Jet pipe, 4α: Nozzle, 5: Water collection plate, 6: Weir plate, 7, 8: Pump, 9: Collection Water pipe, 10: Notch, 1
1: Float, 12: Water intake, 16: Inlet, 14: Water area, 15: Spilled oil. Sub-agent Patent Attorney Teru Ito (and 2 others) Procedural Amendment (Spontaneous June 2, 1980 Director-General of the Patent Office Iwao Wakasugi) , Relationship with the meaning of the title of the invention Patent applicant address 5-1 Maruno Potter-chome, Chiyoda-ku, Tokyo Name (620) Ya Nagisa, representative of Mitsubishi Heavy Industries, Ltd.
Gen No 4 agent address 105 Tokyo Port R2! , ff Tsumon-chome 2-29 Toranomon Sanryo Building TEIL (501) 3706
6. Contents of amendment (1) % The scope of claims shall be amended by one additional statement q 1if. (2) Specification No. 2: White lines 9th to 10th “Rear end portion,
(3) "Front end" in line 12 of second nail, line 6 of third section.
Corrected ``rear end'' to 1-ro. (4) The "rear end" on page 2, line 14, page 3, 611 is referred to as the "1-front end"], (5) Order, approximately page 7.
Line cr) "Rear end edge 5a" is changed to "front end, 5a" 1
-Ro. (6) Therefore, page 3, line 8, g) "Between θ Katanku 1.1'" is corrected to "The upper part of 1 buoyancy Kunku 1.1'is" (1-). At the bottom, the 3rd line, ``Front side of the weir plate'', is ``
(8) In the 1st I negative 10? 1st, ``Suction the sinking water'' is changed to ``Suction the water containing oil.'' (9) □Correct the 5th negative 6th line σ・``Discharge'' as a single column.'' (10) Please correct "rear" in item 4-1 of page 5 to "front". (In the Ordinance, page 6, line 4, "bottom surface 10a above the water surface" is changed to "bottom surface 10a above the water surface"). [Claims] A pair of buoyancy tanks whose buoyancy can be adjusted. The part is connected by a jet pipe with a small number of nozzles that spray a jet stream diagonally upward at the rear, the middle part by a water collecting plate, and the rear part by a notch and two weir plates in the center of the upper part. Connected to the body weight, the front edge of the water collecting plate and the jet pipe l"r!]K open the upper part between the buoyancy tanks, and the water collecting plate f] weir plate, f, lil. A water collection recess is provided, and an oil collection tank is installed on the curved surface of the weir plate (, and the above t
(i) A spill recovery device characterized by not having a means for supplying water to four flow pipes and a means for draining water from an oil collection tank.

Claims (1)

[Claims] The rear ends of a pair of buoyancy tanks with adjustable buoyancy are equipped with jet pipes that have multiple nozzles that spray jets diagonally upward in the front.
In addition, the front end is connected in one body by the intermediate water collection plate and the weir plate having a notch in the center of the upper part.
In addition to opening the gap between the buoyancy tank between the rear edge of the water collection plate and the jet pipe, a water collection recess is provided on the weir plate side of the water collection plate, and an oil collection tank is installed on the front side of the weir plate. A spilled oil recovery device characterized in that the spilled oil recovery device is equipped with a means for supplying water to the jet pipe and a means for draining water from the oil collection tank.