JP3385366B2 - Wave spilled oil accumulation device - Google Patents
Wave spilled oil accumulation deviceInfo
- Publication number
- JP3385366B2 JP3385366B2 JP2000209034A JP2000209034A JP3385366B2 JP 3385366 B2 JP3385366 B2 JP 3385366B2 JP 2000209034 A JP2000209034 A JP 2000209034A JP 2000209034 A JP2000209034 A JP 2000209034A JP 3385366 B2 JP3385366 B2 JP 3385366B2
- Authority
- JP
- Japan
- Prior art keywords
- oil
- water channel
- wave
- water
- flow
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Landscapes
- Removal Of Floating Material (AREA)
- Cleaning Or Clearing Of The Surface Of Open Water (AREA)
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、外洋において流出
した油の回収に関する。TECHNICAL FIELD The present invention relates to the recovery of oil spilled in the open sea.
【０００２】[0002]
【従来の技術】従来、水面上に浮遊した油を回収する場
合、オイルフェンスや堰を設けて油層を厚くしたり、ベ
ルト等で油をかき寄せて油層を厚くして油を回収してい
た。例えば特許出願公開広報「特許公開平１１−１５２
０８０号」に記載されているように、海水および海面上
の油を効率よく本体内に導き、海水だけ船底より排水す
る方法が考案されて来た。2. Description of the Related Art Conventionally, when collecting oil floating on the water surface, an oil fence or a weir is provided to thicken the oil layer, or a belt or the like is used to thicken the oil layer to collect the oil. For example, Japanese Patent Application Publication "Publication No. 11-152"
As described in "No. 080", a method has been devised in which seawater and oil on the sea surface are efficiently guided into the main body and only seawater is drained from the bottom of the ship.
【０００３】[0003]
【発明が解決しようとする課題】海上に流出した油は、
海上に油がある間に回収できれば、それが海岸を汚染し
た場合に比べて１０分の１以下の費用で済むといわれて
いる。従来の外洋における流出した油の回収の問題点
は、波の波高が大きくなると油回収のための作業水面
で、波の影響により、反射する波を生じさせたり、油層
のある表面の流れを妨げ、波高が３０センチメートル程
度以上になると、油層厚さがたもてなくなり、油回収部
の油層が薄くなったり、前方に流れて油層の無い水面が
でき、油の回収効率が極端に低下することであった。ま
た、作業船を流出した油に近づけると、作業船前面での
水位が高くなり、流出油を作業船内に取り込むことが難
しかった。The oil spilled into the sea is
It is said that if oil can be collected while it is offshore, it will cost less than one-tenth the cost of polluting the coast. The problem with the conventional oil spill recovery in the open ocean is that when the wave height is high, the working water surface for oil recovery causes reflected waves due to the effect of the waves, or obstructs the flow on the surface with an oil layer. When the wave height is about 30 cm or more, the oil layer thickness becomes unreliable, the oil layer in the oil recovery section becomes thin, or the water surface flows forward and there is no oil layer, and the oil recovery efficiency is extremely reduced. Was that. Further, when the work boat is brought close to the spilled oil, the water level in front of the work boat becomes high, and it is difficult to take the spilled oil into the work boat.
【０００４】本発明は、このような外洋において波の波
高が高いときにも、油回収の効率を上げるために、油回
収部で波の静穏化を図り、水面の表面流を流れやすくす
ることにより浮遊油の集積を行い、油層を厚く保持でき
るようにすることを目的とするものである。According to the present invention, in order to improve the efficiency of oil recovery even when the wave height of the waves is high in such an open sea, the oil recovery section aims to calm the waves so that the surface current on the water surface can easily flow. The purpose of the present invention is to collect floating oil and to keep the oil layer thick.
【０００５】[0005]
【課題を解決するための手段】そして、本願発明は上記
目的を達成するために、油回収部前面の水面下に底板を
有し、徐々に狭めた水路およびそれに続く狭めた水路を
設置することによって、波のエネルギーが大きい場合、
そのエネルギーを利用して、表面流を加速し、水路前面
付近と水路上の、海水と油を、その後部の水路を急拡大
させて堰を設けた場所へ取り込む。In order to achieve the above object, the present invention has a bottom plate below the water surface in front of the oil recovery section, and installs a gradually narrowed water channel and a subsequent narrowed water channel. If the wave energy is large,
The energy is used to accelerate the surface flow and take in seawater and oil near the front of the waterway and on the waterway to the place where the weir is provided by rapidly expanding the waterway at the rear.
【０００６】取り込まれた海水と油は、その後の２０度
から３５度程度に流れに沿う方向に後ろを高く傾斜し、
底部から水面付近まで取り付けられた傾斜板列の上を通
過する。この傾斜板列の上を通過する間に、波の振幅は
小さくなり油と海水は下流側へ押し流される。取り込ま
れた海水は、傾斜板列の後方で波の振幅がある程度小さ
くなる場所で、傾斜板に沿って底のほうへ流れ、排水さ
れる。このようにして、油層の集積を行うことができ
る。[0006] The seawater and oil taken in are inclined at a high angle behind 20 ° to 35 ° in the direction along the flow,
It passes over a row of inclined plates attached from the bottom to near the water surface. While passing over this row of inclined plates, the amplitude of the wave becomes smaller and the oil and seawater are washed away downstream. The seawater taken in flows along the inclined plate toward the bottom at the place where the amplitude of the wave becomes small to some extent behind the row of inclined plates and is drained. In this way, the oil layer can be accumulated.
【０００７】上記第１の課題解決手段による作用は次の
通りである。すなわち、波に向かう方向に開いた油回収
部前面から、底板を設けた水路の幅を次第に絞ることに
よって、波のエネルギーを流れに変える。この流れによ
って、水路前面近くと水路内の海水と油を含む表面流を
加速し、その後部の水路を急拡大させて堰を設けた場所
に取り込む。The operation of the first means for solving the problems is as follows. That is, the energy of the wave is changed into a flow by gradually narrowing the width of the water channel provided with the bottom plate from the front surface of the oil recovery section that is open in the direction toward the wave. By this flow, the surface flow containing seawater and oil near the front of the waterway and in the waterway is accelerated, and the waterway at the rear part is rapidly expanded and taken into the place where the weir is provided.
【０００８】また、第２の課題解決手段による作用は、
流れに沿う方向に傾斜板列を設けることにより、水深が
極端に浅くなるため、波の波長が短くなり、波のエネル
ギーが小さくなる。さらに、流れのエネルギーも傾斜板
列の上を移動する間に小さくなるので、取り込まれた油
が浮上分離する。ある程度波の振幅が小さくなった場所
で、傾斜板に沿って、下向きに海水を排水することによ
り、油の分離が促進され、油層を厚く保持することがで
きる。この厚くした油層を吸引等により回収することに
より、回収油の含水率を下げ油の回収性能を向上させる
ことができる。The operation of the second problem solving means is as follows.
By providing the inclined plate array in the direction along the flow, the water depth becomes extremely shallow, so the wavelength of the wave becomes shorter and the energy of the wave becomes smaller. Furthermore, the energy of the flow also decreases while moving over the row of inclined plates, so that the oil taken in is floated and separated. By draining seawater downward along the sloping plate at a place where the wave amplitude is reduced to some extent, oil separation is promoted and the oil layer can be kept thick. By collecting the thickened oil layer by suction or the like, it is possible to reduce the water content of the recovered oil and improve the oil recovery performance.
【０００９】[0009]
【実施の形態】以下、本発明の実施の形態として一実施
例を図１〜図３に基づいて説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to FIGS.
【００１０】図１において、油回収船または油回収機の
回収部の前部を徐々に狭めた水路１とそれに続く狭めた
水路２を設ける。その後流側に拡大水路３を設ける。拡
大水路の後ろ側には堰４を設けている。徐々に狭めた水
路１と狭めた水路２には底板５があり、拡大水路３に
は、その入り口から一定の距離まで底板５をつける。そ
の後拡大水路内に底板の無い部分を設ける。拡大水路は
油回収部とする。In FIG. 1, a water channel 1 in which a front portion of a recovery section of an oil recovery ship or an oil recovery machine is gradually narrowed and a water channel 2 in which the water channel 1 is narrowed are provided. After that, the enlarged water channel 3 is provided on the flow side. A weir 4 is provided behind the expansion waterway. The narrowed water channel 1 and the narrowed water channel 2 each have a bottom plate 5, and the enlarged water channel 3 is provided with a bottom plate 5 up to a certain distance from its entrance. After that, a part without a bottom plate will be provided in the expansion channel. The expanded waterway will be the oil recovery section.
【００１１】拡大水路には２０度から３５度程度の角度
で、後部を高くした傾斜板列６を喫水線より少し下から
底板５の深さまで設置する。In the enlarged water channel, an inclined plate row 6 having an elevated rear portion is installed at an angle of about 20 to 35 degrees from slightly below the waterline to the depth of the bottom plate 5.
【００１２】傾斜板列６には、補強および油水の横方向
の流れを抑制するために、一定間隔に縦通し板７を設置
する。The slanting plate rows 6 are provided with longitudinal plates 7 at regular intervals in order to reinforce and suppress the lateral flow of oil water.
【００１３】以下、上記構成の動作を説明する。徐々に
狭められた水路部１の前方より水路部へ進入した波は、
底板５に制限されて水路の中で流れとなり表面流を加速
し、狭めた水路２を通り、拡大水路３へ流れ込む。The operation of the above configuration will be described below. The waves that entered the waterway part from the front of the waterway part 1 that was gradually narrowed,
It is restricted by the bottom plate 5 and becomes a flow in the water channel to accelerate the surface flow, and then flows into the enlarged water channel 3 through the narrowed water channel 2.
【００１４】拡大水路３には、流れに沿う方向に後部を
高くした傾斜板列６が配置されているので、流れはこの
傾斜板列の上を流れる。傾斜板の上端は喫水線より少し
下まであるために、水深が極端に浅くなることにより、
波の波長が短くなり、波のエネルギーが失われ波高が小
さくなる。In the enlarged water channel 3, since the inclined plate row 6 having a rear portion raised in the direction along the flow is arranged, the flow flows over the inclined plate row. Since the upper end of the sloping plate is slightly below the waterline, the water depth becomes extremely shallow,
The wavelength of the wave becomes shorter, the energy of the wave is lost, and the wave height becomes smaller.
【００１５】波高がある程度小さくなる位置の後方で、
傾斜板に沿って下向きに海水を排水することにより、油
の浮上を助けるとともに、効率的に排水を行う。Behind the position where the wave height becomes small to some extent,
Draining seawater downward along the sloping plate helps to float the oil and also drains water efficiently.
【００１６】海水とともに拡大水路部へ流入した油は、
傾斜板列に添って流れる間に浮上し、拡大水路部後部の
堰前まで押し流され、油集積部に油が集積される。この
油集積部に集積された油は、油水界面計と連動したポン
プにより吸引等により回収することができる。The oil that has flowed into the expanded waterway along with seawater is
As it flows along the row of inclined plates, it floats up and is washed away to the front of the weir at the rear of the enlarged water channel, and oil is accumulated in the oil accumulation section. The oil accumulated in the oil accumulating portion can be collected by suction or the like by a pump linked with an oil / water interface meter.
【００１７】以上の動作は、波のある場合に有効であ
る。波の無い場合には拡大水路部に浮遊油を導くことが
難しいので、これに対処するためには別に狭めた水路部
２で、水ジェットまたは機械的な動力により表面流を加
速し、浮遊油を拡大水路部に送り込む。The above operation is effective when there is a wave. In the absence of waves, it is difficult to guide the floating oil to the expanded water channel, so in order to deal with this, the surface flow is accelerated by a water jet or mechanical power in the narrowed water channel 2, and the floating oil is suspended. Is sent to the enlarged waterway section.
【００１８】以上のように、本実施例によれば波高が高
いときに浮遊油を取り込み、油の集積を行い、油層を安
定して保持することができるので、吸引等により効率よ
く油の回収を行うことができる。As described above, according to this embodiment, when the wave height is high, floating oil can be taken in, oil can be accumulated, and the oil layer can be stably held, so that oil can be efficiently collected by suction or the like. It can be performed.
【００１９】[0019]
【発明の効果】上述したように本発明の波浪対応型流出
油集積装置は、外洋において波高が高い状態で効率的に
浮遊油を集積でき、海上での油の回収を行うことができ
る。As described above, the wave-corresponding spilled-oil collecting apparatus according to the present invention can efficiently collect floating oil in a state where the wave height is high in the open sea, and can collect oil at sea.
【図１】本発明の一実施例を示す外観図FIG. 1 is an external view showing an embodiment of the present invention.
【図２】図１のＡ−Ａ断面を示す。FIG. 2 shows a cross section taken along the line AA of FIG.
【図３】海水と浮遊油の流れ[Figure 3] Flow of seawater and floating oil
１ 徐々に狭めた水路 ２ 狭めた水路 ３ 拡大水路 ４ 堰 ５ 底板 ６ 傾斜板列 ７ 縦通し板 ８ 浮遊油 ９ 海水の流れ 1 Canal that narrowed gradually 2 narrowed waterways 3 enlarged waterways 4 weirs 5 bottom plate 6 inclined plate row 7 Longitudinal plate 8 floating oil 9 Seawater flow
───────────────────────────────────────────────────── フロントページの続き (72)発明者 湯川 和浩 東京都杉並区南荻窪４−29−15 南荻窪 住宅301−１ (56)参考文献 特開 昭52−1884（ＪＰ，Ａ) 特開 昭48−78690（ＪＰ，Ａ) 特開2000−153797（ＪＰ，Ａ) (58)調査した分野(Int.Cl.7，ＤＢ名) B63B 35/32 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Kazuhiro Yukawa 4-29-15 Minamiogikubo, Suginami-ku, Tokyo Minamiogikubo Housing 301-1 (56) References JP-A-52-1884 (JP, A) JP-A-SHO 48-78690 (JP, A) JP 2000-153797 (JP, A) (58) Fields investigated (Int.Cl. 7 , DB name) B63B 35/32
Claims (2)
て、油回収部前面の水面下に底板を有し、徐々に狭めた
水路および狭めた水路を設置し、その後部の水路を急拡
大させて堰を設けた波浪対応型流出油集積装置。1. In an oil recovery device or an oil recovery ship in waves, a bottom plate is provided below the water surface in front of the oil recovery section, and a gradually narrowed water channel and a narrowed water channel are installed, and the water channel at the rear is rapidly expanded. An oil spill accumulator that responds to waves and has a weir.
ら３５度後方を高くした傾斜板列を喫水線より少し低い
水面下から、水路の底板位置まで設置した波浪対応型流
出油集積装置。2. A wave-storing oil spillage accumulating system, in which a row of inclined plates having a rear angle of 20 to 35 degrees higher is installed in the water channel suddenly expanded according to claim 1 from a position slightly below the water surface to a bottom plate position of the water channel. apparatus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000209034A JP3385366B2 (en) | 2000-06-07 | 2000-06-07 | Wave spilled oil accumulation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000209034A JP3385366B2 (en) | 2000-06-07 | 2000-06-07 | Wave spilled oil accumulation device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2001347987A JP2001347987A (en) | 2001-12-18 |
| JP3385366B2 true JP3385366B2 (en) | 2003-03-10 |
Family
ID=18705510
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000209034A Expired - Lifetime JP3385366B2 (en) | 2000-06-07 | 2000-06-07 | Wave spilled oil accumulation device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3385366B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105672227A (en) * | 2016-03-11 | 2016-06-15 | 浙江海洋学院 | Duckweed clearing device |
-
2000
- 2000-06-07 JP JP2000209034A patent/JP3385366B2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105672227A (en) * | 2016-03-11 | 2016-06-15 | 浙江海洋学院 | Duckweed clearing device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2001347987A (en) | 2001-12-18 |
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