FR2545119A1 - Device for protecting a zone on a stretch of water from pollution, particularly by lumps of hydrocarbons - Google Patents

Device for protecting a zone on a stretch of water from pollution, particularly by lumps of hydrocarbons Download PDF

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Publication number
FR2545119A1
FR2545119A1 FR8307304A FR8307304A FR2545119A1 FR 2545119 A1 FR2545119 A1 FR 2545119A1 FR 8307304 A FR8307304 A FR 8307304A FR 8307304 A FR8307304 A FR 8307304A FR 2545119 A1 FR2545119 A1 FR 2545119A1
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FR
France
Prior art keywords
barrier
water
nets
bottoms
zone
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
Application number
FR8307304A
Other languages
French (fr)
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FR2545119B1 (en
Inventor
Christian Bocard
Maurice Cessou
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IFP Energies Nouvelles IFPEN
Original Assignee
IFP Energies Nouvelles IFPEN
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by IFP Energies Nouvelles IFPEN filed Critical IFP Energies Nouvelles IFPEN
Priority to FR8307304A priority Critical patent/FR2545119B1/en
Publication of FR2545119A1 publication Critical patent/FR2545119A1/en
Application granted granted Critical
Publication of FR2545119B1 publication Critical patent/FR2545119B1/en
Expired legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B15/00—Cleaning or keeping clear the surface of open water; Apparatus therefor
    • E02B15/04—Devices for cleaning or keeping clear the surface of open water from oil or like floating materials by separating or removing these materials
    • E02B15/048—Oil collectors moved over the water skimming the water surface
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B15/00—Cleaning or keeping clear the surface of open water; Apparatus therefor
    • E02B15/04—Devices for cleaning or keeping clear the surface of open water from oil or like floating materials by separating or removing these materials
    • E02B15/08—Devices for reducing the polluted area with or without additional devices for removing the material
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B15/00—Cleaning or keeping clear the surface of open water; Apparatus therefor
    • E02B15/04—Devices for cleaning or keeping clear the surface of open water from oil or like floating materials by separating or removing these materials
    • E02B15/08—Devices for reducing the polluted area with or without additional devices for removing the material
    • E02B15/0814—Devices for reducing the polluted area with or without additional devices for removing the material with underwater curtains
    • 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

Device for protecting a zone on a stretch of water from pollution, particularly by lumps of hydrocarbons. This device, which comprises a substantially vertical barrier delimiting the zone to be protected is characterised in that a plurality of collecting nets 10, in the shape of funnels with removable bottoms 11, open up into this barrier 5, these nets 10 having meshes of size smaller than that of the polluting elements to be retained, and extending towards the inside of the zone to be protected, positioning means 15, 15a holding the bottoms 11 of these nets at a distance from the said barrier 5. The invention can be applied in particular to the protection of a stretch of water from pollution by lumps of hydrocarbons.

Description

La présente invention concerne un dispositif pour protéger une zone d'un plan d'eau contre la pollution, en arrêtant des éléments flot- tant entre deux eaux et en surface, comme, par exemple, des agglomérats d'hydrocarbures résultant de l'action des éléments naturels sur une nappe d'hydrocarbures répandus sur l'eau, ou du traitement d'une telle nappe par épandage d'un agent agglomérant.The present invention relates to a device for protecting an area of a body of water against pollution, by stopping elements floating between two waters and on the surface, such as, for example, agglomerates of hydrocarbons resulting from the action. natural elements on a sheet of hydrocarbons spilled on water, or the treatment of such a sheet by spreading an agglomerating agent.

On connaît déjà des barrières flottantes destinées à arrêter ou contenir des produits polluants à la surface de l'eau.Floating barriers are already known which are intended to stop or contain pollutants on the surface of the water.

Ces dispositifs antérieurs ne sont cependant pas conçus pour arrêter des produits dérivant sous la surface de l'eau.These prior devices are however not designed to stop products drifting under the surface of the water.

On a bien proposé à cet effet de tendre des filets entre la surface et le fond de l'eau, mais un tel dispositif ne permet cependant pas d'éliminer l'agent polluant.It has indeed been proposed for this purpose to stretch nets between the surface and the bottom of the water, but such a device does not however make it possible to eliminate the polluting agent.

Le dispositif selon l'invention qui résoud le problème ainsi posé, comporte une barrière sensiblement verticale délimitant la zone à protéger. Il est caractérisé en ce que dans cette barrière s' ouvrent une pluralite de filets de collecte en forme de poches ou d'entonnoirs dont au moins le fond est amovible, ces filets, avantageusement répartis sur au moins deux niveaux, ayant des mailles de taille inférieure à celle des éléments polluants à retenir et s'étendant vers l'intérieur de la zone à protéger, des moyens de positionnement maintenant les fonds de ces filets espacés de ladite barrière.The device according to the invention which solves the problem thus posed, comprises a substantially vertical barrier delimiting the area to be protected. It is characterized in that in this barrier open a plurality of collection nets in the form of pockets or funnels of which at least the bottom is removable, these nets, advantageously distributed on at least two levels, having mesh size lower than that of the polluting elements to be retained and extending towards the interior of the zone to be protected, positioning means maintaining the bottoms of these nets spaced from said barrier.

Des exemples de réalisation de l'invention sont illustrés par les dessins annexés, où
- la figure 1 représente schématiquement, en vue de dessus, un
dispositif selon l'invention, protegeant contre la pollution
une zone d'un plan d'eau,
- la figure 2A montre en coupe verticale un premier mode de
réalisation de ce dispositif,
- la figure 2B représente un second mode de réalisation, et
- la figure 3 montre, vue de l'extérieur de la zone à protéger,
une portion de la barrière dans laquelle s'ouvrent les filets
de collecte.Examples of embodiments of the invention are illustrated by the accompanying drawings, where
- Figure 1 shows schematically, in top view, a
device according to the invention, protecting against pollution
an area of a body of water,
- Figure 2A shows in vertical section a first mode of
realization of this device,
FIG. 2B represents a second embodiment, and
- Figure 3 shows, seen from the outside of the area to be protected,
a portion of the barrier into which the nets open
collection.

Dans l'exemple illustré par la figure 1 le dispositif selon l'invention est utilisé pour protéger contre la pollution une zone 1 d'un plan d'eau, dans laquelle aboutit en 2a une conduite d'aspiration d'eau 2 reliée à une installation 3, telle que, par exemple, une usine de dessalement de l'eau de mer, située près du rivage 4.In the example illustrated by FIG. 1, the device according to the invention is used to protect against pollution a zone 1 of a body of water, in which ends in 2a a water suction pipe 2 connected to a installation 3, such as, for example, a seawater desalination plant, located near shore 4.

Le dispositif selon l'invention illustré par les figures 1, 2A et 3 comporte une barrière verticale 5 s'étendant sensiblement sur toute la hauteur de la tranche d'eau entre le fond 6 et la surface 7 et formant autour du point 2a un arc de cercle limité par le rivage 4 (dans une variante, la barrière 5 peut entourer complètement le point 2a).The device according to the invention illustrated by FIGS. 1, 2A and 3 comprises a vertical barrier 5 extending substantially over the entire height of the slice of water between the bottom 6 and the surface 7 and forming around the point 2a an arc of circle limited by shore 4 (in a variant, the barrier 5 can completely surround point 2a).

La barrière 5 peut être constituée d'un filet 8 ayant des mailles de taille inférieure à celle des éléments polluants à retenir (Fig. 3).The barrier 5 may consist of a net 8 having meshes of size smaller than that of the polluting elements to be retained (FIG. 3).

Dans cette barrière 5 s'ouvrent par des orifices 9 une pluralité de filets de collecte 10 en forme de poches ou d'entonnoirs dont au moins les fonds ll sont amovibles à la manière des fonds de chaluts, de façon à permettre à des plongeurs d'enlever périodiquement les produits polluants collectés.In this barrier 5 open through orifices 9 a plurality of collection nets 10 in the form of pockets or funnels of which at least the bottoms ll are removable in the manner of trawl bottoms, so as to allow divers to '' periodically remove the pollutants collected.

Ces filets de collecte ont également des mailles d'une taille inférieure à celle des éléments polluants à retenir.These collection nets also have meshes of a size smaller than that of the polluting elements to be retained.

Les filets 10 pourront avantageusement être doublés par un maillage de renforcement, pouvant être à mailles relativement larges et par exemple constitué d'une matière plastique de flottabilité positive, telle que le polyéthylène ou polypropylène, afin d'alléger ces filets.The nets 10 may advantageously be doubled by a reinforcing mesh, which can be of relatively wide mesh and for example made of a plastic material of positive buoyancy, such as polyethylene or polypropylene, in order to lighten these nets.

I1 sera également possible de soutenir les fonds 11 de ces filets au moyen de flotteurs auxiliaires ou éléments immergés de flottabilité positive lla. It will also be possible to support the bottoms 11 of these nets by means of auxiliary floats or submerged elements of positive buoyancy 11a.

Les fonds 11 seront avantageusement reliés aux filets 10 de façon détachable et constitués comme décrit dans la première demande d'addition
E.N. 81/08164 à la demande de brevet déposée le 21 mars 1980 sous le numéro 80/06419 intitulée "Filet spécial du type chalut pour la collecte de produits flottants".The bottoms 11 will advantageously be connected to the threads 10 detachably and formed as described in the first request for addition
EN 81/08164 to the patent application filed on March 21, 1980 under number 80/06419 entitled "Special net of the trawl type for the collection of floating products".

Par ailleurs, les fonds 11 seront avantageusement entourés d'une enveloppe ou manchon imperméable tel que décrit dans la demande de brevet d'addition précitée.Furthermore, the bottoms 11 will advantageously be surrounded by an impermeable envelope or sleeve as described in the aforementioned patent application.

Dans l'exemple illustré par la figure 2A, les filets de collecte 10 sont disposés sur deux niveaux, leurs orifices 9 étant proches lesuns des autres et la barrière 5 est fixée à une rangée de piquets 12 espacés les uns des autres et enfoncés dans le fond de l'eau 6, les filets étant avantageusement fixés à leur partie supérieure à des flotteurs 13 montés coulissant le long des piquets 12, de façon à pouvoir suivre les variations de niveau de l'eau dans les zones à marées.In the example illustrated in FIG. 2A, the collection nets 10 are arranged on two levels, their orifices 9 being close to each other and the barrier 5 is fixed to a row of stakes 12 spaced from one another and inserted into the bottom of the water 6, the nets being advantageously fixed at their upper part to floats 13 mounted sliding along the stakes 12, so as to be able to follow the variations in water level in the tidal zones.

Dans l'exemple considéré, ces flotteurs supportent également une cloison d'arrêt 14, de hauteur limitée, formant barrage aux produits polluants au voisinage de la surface de l'eau.In the example considered, these floats also support a stop partition 14, of limited height, forming a barrier to pollutants in the vicinity of the water surface.

Le dispositif comporte également des moyens de positionnement des fonds 11 des filets (qui maintiennent la position de ces fonds 11 par rapport à la barrière 5, ainsi que leur niveau par rapport au fond de l'eau). Dans l'exemple de la figure 2A, ces moyens comportent une seconde série de piquets 15, espacés des piquets 12, qui sont disposés à l'intérieur de la zone 1 à protéger.The device also comprises means for positioning the bottoms 11 of the nets (which maintain the position of these bottoms 11 relative to the barrier 5, as well as their level with respect to the bottom of the water). In the example of FIG. 2A, these means comprise a second series of stakes 15, spaced from the stakes 12, which are arranged inside the zone 1 to be protected.

Comme illustré par la figure 2B, il est possible de remplacer l'une au moins des séries de piquets 12 et 15 par d'autres moyens de positionnement, constitués par des câbles ou chaînes, tels que 12a et 15a tendus entre des corps morts 16a et 17a et des flotteurs de surface avantageusement constitués de barrages antipollution. Dans l'exemple illustré, ces barrages comprennent des boudins flottants 18a et 19a qui soutiennent des barrieres antipollution 20a et 21a, ces barrages étant éventuellement maintenus en position par un ensemble de haubans 22, 23 et 24, par exemple.As illustrated in FIG. 2B, it is possible to replace at least one of the series of stakes 12 and 15 by other positioning means, constituted by cables or chains, such as 12a and 15a stretched between dead bodies 16a and 17a and surface floats advantageously made up of pollution barriers. In the example illustrated, these dams include floating tubes 18a and 19a which support antipollution barriers 20a and 21a, these dams possibly being held in position by a set of shrouds 22, 23 and 24, for example.

A titre de variante, le boudin flottant 19a peut être remplacé par un simple flotteur. Alternatively, the floating rod 19a can be replaced by a simple float.

Claims (7)

REVENDICATIONS 1. - Dispositif pour protéger une zone d'un plan d'eau contre la pollution, en arrêtant des éléments polluants flottant entre deux eaux, tels que des agglomérats d'hydrocarbures, comportant une barrière sensiblement verticale délimitant la zone à protéger, caractérisé en ce que dans cette barrière (5) s'ouvrent une pluralité de filets de collecte (10) en forme d'entonnoirs à fonds (11) amovibles, ces filets (10) ayant des mailles de taille inférieure à celle des éléments polluants à retenir, et s'étendant vers l'intérieur de la zone à protéger, des moyens de positionnement (15, 15a) maintenant les fonds (11) de ces filets espacés de ladite barrière (5). 1. - Device for protecting an area of a body of water against pollution, by stopping polluting elements floating between two waters, such as agglomerates of hydrocarbons, comprising a substantially vertical barrier delimiting the area to be protected, characterized in that in this barrier (5) open a plurality of collection nets (10) in the form of funnels with removable bottoms (11), these nets (10) having meshes of size smaller than that of the polluting elements to be retained , and extending towards the interior of the zone to be protected, positioning means (15, 15a) holding the bottoms (11) of these threads spaced from said barrier (5). 2. - Dispositif selon la revendication 1, caractérisé en ce que lesdits filets de collecte (10) sont disposés sur au moins deux niveaux. 2. - Device according to claim 1, characterized in that said collection nets (10) are arranged on at least two levels. 3. - Dispositif selon l'une quelconque des revendications 1 et 2, caractérisé en ce que ladite barrière (5) est fixée à une rangée de piquets (9) espacés les uns des autres, enfoncés dans le fond (6) de l'eau.  3. - Device according to any one of claims 1 and 2, characterized in that said barrier (5) is fixed to a row of stakes (9) spaced from each other, driven into the bottom (6) of the water. 4. - Dispositif selon la revendication 3, caractérisé en ce que ladite barrière (5) est fixée à sa partie supérieure à des flotteurs (13) montés coulissant le long desdits piquets (9). 4. - Device according to claim 3, characterized in that said barrier (5) is fixed at its upper part to floats (13) mounted sliding along said stakes (9). 5. - Dispositif selon l'une quelconque des revendications 1 et 2, caractérisé en ce que ladite barrière (5) est fixée à une série de câbles ou chaînes (12a) tendus entre le fond (6) et un barrage antipollution (18a, 20a) flottant à la surface de l'eau  5. - Device according to any one of claims 1 and 2, characterized in that said barrier (5) is fixed to a series of cables or chains (12a) stretched between the bottom (6) and an antipollution barrier (18a, 20a) floating on the surface of the water 6. - Dispositif selon l'une quelconque des revendications 1 à 5, caractérisé en ce que lesdits moyens de positionnement des fonds des filets comprennent des piquets (15) espacés de ladite barrière (5), disposés à l'intérieur de la zone (1) à protéger.  6. - Device according to any one of claims 1 to 5, characterized in that said means for positioning the bottoms of the nets comprise stakes (15) spaced from said barrier (5), arranged inside the area ( 1) to protect. 7. - Dispositif selon l'une quelconque des revendications 1 à 5, caractérisé en ce lesdits moyens de positionnement des fonds des filets comprennent une série de câbles ou chaînes (15a) tendus entre le fond et la surface de l'eau à l'intérieur de la zone (1) à protéger.  7. - Device according to any one of claims 1 to 5, characterized in that said means for positioning the bottoms of the nets comprise a series of cables or chains (15a) stretched between the bottom and the surface of the water in the inside the area (1) to be protected.
FR8307304A 1983-04-29 1983-04-29 DEVICE FOR PROTECTING AN AREA OF A WATER AGAINST POLLUTION, IN PARTICULAR BY HYDROCARBON AGGLOMERATES Expired FR2545119B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR8307304A FR2545119B1 (en) 1983-04-29 1983-04-29 DEVICE FOR PROTECTING AN AREA OF A WATER AGAINST POLLUTION, IN PARTICULAR BY HYDROCARBON AGGLOMERATES

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8307304A FR2545119B1 (en) 1983-04-29 1983-04-29 DEVICE FOR PROTECTING AN AREA OF A WATER AGAINST POLLUTION, IN PARTICULAR BY HYDROCARBON AGGLOMERATES

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FR2545119A1 true FR2545119A1 (en) 1984-11-02
FR2545119B1 FR2545119B1 (en) 1986-01-17

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3617857A1 (en) * 1986-05-27 1987-12-17 Zueblin Ag Method for preventing the propagation of suspended matter in a body of water and a device for carrying out the method
FR2850686A1 (en) * 2003-01-31 2004-08-06 Herve Audebert Device for collecting floating objects, in particular hydrocarbon waste, comprises trawling net where open front and rear part holding objects can be detached from each other

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106120683B (en) * 2016-06-30 2018-07-13 大连理工大学 Channel is disastrous breaks out marine organisms automatic clearing apparatus for a kind of water intaking of seawater

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2061236A5 (en) * 1969-09-11 1971-06-18 Deepsea Ventures Inc Appts for marking out and enclosing a layer - of oil floating on water
FR2303120A1 (en) * 1975-03-06 1976-10-01 Vidilles Jacques SOFT CONCENTRATOR FOR THE RECOVERY OF POLLUTANT LIQUIDS FLOATING ON THE SURFACE OF A BODY OF WATER
FR2378904A1 (en) * 1976-11-03 1978-08-25 Julian Yvon Floating barrage of inter-articulating vertical panels - used e.g. for gathering oil from sea surface, can be towed or stand on bed in shallows
FR2416305A1 (en) * 1978-02-02 1979-08-31 Nyfeldt Knud DEVICE FOR PICKING UP MATERIALS SUCH AS OIL FLOATING ON THE SURFACE OF WATER
GB2071971A (en) * 1980-03-21 1981-09-30 Inst Francais Du Petrole Trawl net for collecting floating substances

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2061236A5 (en) * 1969-09-11 1971-06-18 Deepsea Ventures Inc Appts for marking out and enclosing a layer - of oil floating on water
FR2303120A1 (en) * 1975-03-06 1976-10-01 Vidilles Jacques SOFT CONCENTRATOR FOR THE RECOVERY OF POLLUTANT LIQUIDS FLOATING ON THE SURFACE OF A BODY OF WATER
FR2378904A1 (en) * 1976-11-03 1978-08-25 Julian Yvon Floating barrage of inter-articulating vertical panels - used e.g. for gathering oil from sea surface, can be towed or stand on bed in shallows
FR2416305A1 (en) * 1978-02-02 1979-08-31 Nyfeldt Knud DEVICE FOR PICKING UP MATERIALS SUCH AS OIL FLOATING ON THE SURFACE OF WATER
GB2071971A (en) * 1980-03-21 1981-09-30 Inst Francais Du Petrole Trawl net for collecting floating substances

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3617857A1 (en) * 1986-05-27 1987-12-17 Zueblin Ag Method for preventing the propagation of suspended matter in a body of water and a device for carrying out the method
DE3617857C2 (en) * 1986-05-27 1999-05-20 Zueblin Ag Method for preventing the spread of suspended matter in a body of water and an apparatus for carrying out the method
FR2850686A1 (en) * 2003-01-31 2004-08-06 Herve Audebert Device for collecting floating objects, in particular hydrocarbon waste, comprises trawling net where open front and rear part holding objects can be detached from each other

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