JP2000290984A - Oil fence - Google Patents
Oil fenceInfo
- Publication number
- JP2000290984A JP2000290984A JP11100334A JP10033499A JP2000290984A JP 2000290984 A JP2000290984 A JP 2000290984A JP 11100334 A JP11100334 A JP 11100334A JP 10033499 A JP10033499 A JP 10033499A JP 2000290984 A JP2000290984 A JP 2000290984A
- Authority
- JP
- Japan
- Prior art keywords
- oil
- oil fence
- fence
- sheet
- towed
- 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.)
- Granted
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/20—Controlling water pollution; Waste water treatment
- Y02A20/204—Keeping clear the surface of open water from oil spills
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、水上に流出した油
の拡散防止あるいは回収等に用いられるオイルフェンス
に係り、特に高速潮流の海域や荒天時に用いるのに好適
なオイルフェンスに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an oil fence used for preventing or recovering oil spilled on water, and more particularly to an oil fence suitable for use in sea areas with high-speed tides or in stormy weather.
【０００２】[0002]
【従来の技術】海面などの水面上に流出した油の拡散防
止や回収のためにオイルフェンスが広く用いられてい
る。図３は従来のオイルフェンスの構成の一例を示すも
のである。このオイルフェンス１は、フロート２と、該
フロート２から垂設されたスカート３と、該スカート３
の下縁に設けられたテンションメンバ（例えばワイヤロ
ープ）又はバラスト４を備えている。2. Description of the Related Art Oil fences are widely used for preventing and recovering oil spilled on a water surface such as a sea surface. FIG. 3 shows an example of the configuration of a conventional oil fence. The oil fence 1 includes a float 2, a skirt 3 suspended from the float 2,
A tension member (for example, a wire rope) or a ballast 4 provided at the lower edge of the lower arm.
【０００３】[0003]
【発明が解決しようとする課題】オイルフェンスを曳航
して集油する場合や、潮流の速い海域の場合などオイル
フェンスと海水等との相対速度差が大きいときには、オ
イルフェンスの前面側に溜まった油が図４，５の如く漏
出し易くなる。When the relative speed difference between the oil fence and seawater is large, such as when the oil fence is towed by the oil fence to collect oil or in a sea area where the tide is fast, the oil fence is accumulated on the front side of the oil fence. Oil easily leaks as shown in FIGS.
【０００４】即ち、曳航速度や潮流速度が大きい条件下
でオイルフェンスによって油を止める場合、水と油の層
境界で生じる剪断力が大きくなり、図４のように先頭波
（ｈｅａｄ ｗａｖｅ）から油滴が漏出したり、図５の
如くフェンス前面での水平渦により油滴が漏出する。[0004] That is, when the oil is stopped by the oil fence under the condition of high towing speed or tidal flow speed, the shearing force generated at the boundary between the water and oil layers becomes large, and as shown in FIG. Oil droplets leak due to a leak or a horizontal vortex at the front of the fence as shown in FIG.
【０００５】また、海上の周期の短い波の波高が大きく
なった場合にも油がオイルフェンスを飛び越えたり（ｓ
ｐｌａｓｈ ｏｖｅｒ）、フェンス前面の海中で油滴が
生じ漏出する。なお、短い周期の波は海上での油回収作
業にも支障となる。[0005] Also, when the wave height of a short-period wave on the sea increases, oil may jump over the oil fence (s).
splash over), oil droplets form and leak in the sea in front of the fence. It should be noted that short-period waves also hinder offshore oil recovery operations.
【０００６】本発明は、上流側に滞留する油を速やかに
回収し、潮流の大きな海域あるは荒天時など波の高いと
きでも油の漏出を著しく少なくすることができるオイル
フェンスを提供することを目的とする。An object of the present invention is to provide an oil fence capable of promptly recovering oil stagnating on the upstream side and greatly reducing oil leakage even in a sea area with a large tidal current or in high waves such as in stormy weather. Aim.
【０００７】また、本発明は油の回収作業時間を顕著に
短縮することができるオイルフェンスを提供することを
目的とする。Another object of the present invention is to provide an oil fence capable of remarkably shortening an oil recovery operation time.
【０００８】[0008]
【課題を解決するための手段】本発明のオイルフェンス
は、上流側の油が溜まる部分に、水面上に配置されるシ
ートを備えてなるものである。The oil fence of the present invention comprises a sheet disposed on the water surface at a portion where oil on the upstream side is accumulated.
【０００９】かかるオイルフェンスにあっては、上流側
の波がシートによって抑制されるので、油滴の漏出やス
プラッシュオーバーが防止される。また、回収作業効率
も向上する。このシートは一枚物でも良く、複数枚から
なるものであっても良い。このシートが吸油性を有して
いるときには、油の回収が促進される。In such an oil fence, the wave on the upstream side is suppressed by the sheet, so that leakage of oil droplets and splashover are prevented. In addition, the collection work efficiency is improved. This sheet may be a single sheet or a plurality of sheets. When the sheet has oil absorbency, oil recovery is promoted.
【００１０】[0010]
【発明の実施の形態】図１，２を参照して実施の形態に
係るオイルフェンスについて説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An oil fence according to an embodiment will be described with reference to FIGS.
【００１１】このオイルフェンス１は、前記図３のもの
と同様に、フロート２と、スカート３と、テンションメ
ンバ又はバラスト４とを備えている。The oil fence 1 includes a float 2, a skirt 3, and a tension member or ballast 4, as in the case of FIG.
【００１２】オイルフェンス１は、ワイヤロープなどの
係留索６を介して２艘のタグボートなどの曳航船５によ
って曳航され、略放物線形状に延在している。このオイ
ルフェンス１の内側領域にワイヤロープ（フロートが設
けられていても良い）等のテンションメンバ７が張り渡
され、このテンションメンバ７にシート８又は９が連結
されている。The oil fence 1 is towed by a towing vessel 5 such as two tug boats via a mooring line 6 such as a wire rope, and extends in a substantially parabolic shape. A tension member 7 such as a wire rope (a float may be provided) is stretched over the inside area of the oil fence 1, and a seat 8 or 9 is connected to the tension member 7.
【００１３】このように構成されたオイルフェンスを油
の流出海域を曳航した場合、油等はオイルフェンス１の
最後尾に向って流れるが、このオイルフェンス１の最後
尾近傍では水面上にシート８，９が配置されており波が
抑制されているので、油が漏出あるいはスプラッシュオ
ーバーせず、効率良く回収される。また、波も静まるの
で油回収作業も行い易くなる。When the oil fence configured as described above is towed in the oil spill area, the oil and the like flows toward the tail end of the oil fence 1, but near the tail end of the oil fence 1, the sheet 8 is placed on the water surface. , 9 are arranged and the waves are suppressed, so that the oil is efficiently collected without leaking or splashing over. In addition, since the waves are calmed down, the oil recovery operation can be easily performed.
【００１４】図１のシート８は一枚物であるが、図２の
シート９は該シート８にスリット１０を入れて短冊状の
ものとなっている。Although the sheet 8 in FIG. 1 is a single sheet, the sheet 9 in FIG. 2 is formed in a strip shape by forming a slit 10 in the sheet 8.
【００１５】各シート８，９はいずれもテンションメン
バ７に連結されている。各シート８，９はオイルフェン
ス１に対しては連結されていても良く、連結されていな
くても良い。Each of the sheets 8 and 9 is connected to the tension member 7. Each of the sheets 8 and 9 may be connected to the oil fence 1 or may not be connected.
【００１６】このシート８，９は吸油性を有していても
良く、このようにすれば水上に流出した油の回収を促進
することができる。The sheets 8 and 9 may have an oil absorbing property, so that the recovery of the oil spilled on the water can be promoted.
【００１７】このシート８，９の材質としては、比重が
１よりも小さいものが用いられる。吸油性をもたせるに
は、ポリプロピレン等の不織布をシートの下面に接着等
によって取り付けるのが好ましい。As the material of the sheets 8, 9, a material having a specific gravity smaller than 1 is used. In order to impart oil absorbency, it is preferable to attach a nonwoven fabric such as polypropylene to the lower surface of the sheet by bonding or the like.
【００１８】上記実施の形態にあっては、オイルフェン
スの長手方向の両端の合計２箇所を曳航しているが、３
箇所以上を曳航しても良い。例えば３箇所を曳航したと
きには、放物線状の膨出領域が２領域生じることにな
り、各膨出領域内にそれぞれシートを配置する。In the above embodiment, a total of two locations at both ends in the longitudinal direction of the boom are towed.
More than one point may be towed. For example, when three places are towed, two parabolic bulging regions are generated, and a sheet is arranged in each bulging region.
【００１９】上記実施の形態にあっては、オイルフェン
スを曳航しているが、潮流の比較的大きな海域や湖沼、
あるいは河川などにあってはオイルフェンスを係留して
おいても良い。In the above embodiment, the oil fence is towed.
Alternatively, an oil fence may be moored in a river or the like.
【００２０】[0020]
【発明の効果】以上の通り、本発明のオイルフェンスに
よると、油を殆ど漏出させることなく高回収率にて回収
することができる。また、本発明のオイルフェンスによ
ると短時間で油を回収することも可能となる。As described above, according to the oil fence of the present invention, oil can be recovered at a high recovery rate with almost no leakage. Further, according to the oil fence of the present invention, it is possible to recover oil in a short time.
【図１】（ａ）図は実施の形態に係るオイルフェンスを
示す平面図、（ｂ）図は（ａ）図のＢ−Ｂ線に沿う断面
図である。1A is a plan view showing an oil fence according to an embodiment, and FIG. 1B is a cross-sectional view taken along line BB in FIG.
【図２】別の実施の形態に係るオイルフェンスの平面図
である。FIG. 2 is a plan view of an oil fence according to another embodiment.
【図３】従来のオイルフェンスの斜視断面図である。FIG. 3 is a perspective sectional view of a conventional oil fence.
【図４】従来のオイルフェンスの使用例を示す断面図で
ある。FIG. 4 is a sectional view showing an example of use of a conventional oil fence.
【図５】従来のオイルフェンスの使用例を示す断面図で
ある。FIG. 5 is a sectional view showing an example of use of a conventional oil fence.
１ オイルフェンス ２ フロート ３ スカート ５ 曳航船 ７ テンションメンバ ８，９ シート １０ スリット DESCRIPTION OF SYMBOLS 1 Oil fence 2 Float 3 Skirt 5 Towing ship 7 Tension member 8, 9 Seat 10 Slit
Claims (3)
置されるシートを備えてなるオイルフェンス。1. An oil fence comprising a sheet disposed on a water surface at a portion where oil on an upstream side is stored.
備えていることを特徴とするオイルフェンス。2. The oil fence according to claim 1, wherein a plurality of the sheets are provided.
吸油性を有することを特徴とするオイルフェンス。3. The oil fence according to claim 1, wherein the sheet has an oil absorbing property.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10033499A JP4062814B2 (en) | 1999-04-07 | 1999-04-07 | Oil fence |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10033499A JP4062814B2 (en) | 1999-04-07 | 1999-04-07 | Oil fence |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2000290984A true JP2000290984A (en) | 2000-10-17 |
| JP4062814B2 JP4062814B2 (en) | 2008-03-19 |
Family
ID=14271254
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10033499A Expired - Fee Related JP4062814B2 (en) | 1999-04-07 | 1999-04-07 | Oil fence |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP4062814B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1177973A3 (en) * | 2000-08-05 | 2002-09-04 | David William Hoskin | Water vessel arrangement |
| JP2017203342A (en) * | 2016-05-13 | 2017-11-16 | 日本ソリッド株式会社 | Leak-proof multiple oil fences |
| JP2018184706A (en) * | 2017-04-24 | 2018-11-22 | 谷口商会株式会社 | Oil fence, construction method of oil fence and method for preventing floating matter from flowing out |
-
1999
- 1999-04-07 JP JP10033499A patent/JP4062814B2/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1177973A3 (en) * | 2000-08-05 | 2002-09-04 | David William Hoskin | Water vessel arrangement |
| JP2017203342A (en) * | 2016-05-13 | 2017-11-16 | 日本ソリッド株式会社 | Leak-proof multiple oil fences |
| JP2018184706A (en) * | 2017-04-24 | 2018-11-22 | 谷口商会株式会社 | Oil fence, construction method of oil fence and method for preventing floating matter from flowing out |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4062814B2 (en) | 2008-03-19 |
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