EP2522568A1 - Method for evacuating liquid from a tank of a stricken ship - Google Patents

Method for evacuating liquid from a tank of a stricken ship Download PDF

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Publication number
EP2522568A1
EP2522568A1 EP20120163129 EP12163129A EP2522568A1 EP 2522568 A1 EP2522568 A1 EP 2522568A1 EP 20120163129 EP20120163129 EP 20120163129 EP 12163129 A EP12163129 A EP 12163129A EP 2522568 A1 EP2522568 A1 EP 2522568A1
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EP
European Patent Office
Prior art keywords
pump
rigid pipe
tank
technical
pipe
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.)
Withdrawn
Application number
EP20120163129
Other languages
German (de)
French (fr)
Inventor
Gilles Longueve
Roch Hallopeau
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
JLMD Ecologic Group
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JLMD Ecologic Group
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Filing date
Publication date
Application filed by JLMD Ecologic Group filed Critical JLMD Ecologic Group
Publication of EP2522568A1 publication Critical patent/EP2522568A1/en
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B17/00—Vessels parts, details, or accessories, not otherwise provided for
    • B63B17/0027—Tanks for fuel or the like ; Accessories therefor, e.g. tank filler caps
    • B63B17/0036—Arrangements for minimizing pollution by accidents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B27/00—Arrangement of ship-based loading or unloading equipment for cargo or passengers
    • B63B27/24—Arrangement of ship-based loading or unloading equipment for cargo or passengers of pipe-lines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B19/00—Arrangements or adaptations of ports, doors, windows, port-holes, or other openings or covers
    • B63B19/12—Hatches; Hatchways
    • B63B19/14—Hatch covers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B57/00—Tank or cargo hold cleaning specially adapted for vessels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63C—LAUNCHING, HAULING-OUT, OR DRY-DOCKING OF VESSELS; LIFE-SAVING IN WATER; EQUIPMENT FOR DWELLING OR WORKING UNDER WATER; MEANS FOR SALVAGING OR SEARCHING FOR UNDERWATER OBJECTS
    • B63C7/00—Salvaging of disabled, stranded, or sunken vessels; Salvaging of vessel parts or furnishings, e.g. of safes; Salvaging of other underwater objects
    • B63C7/006—Emptying the contents of sunken, stranded, or disabled vessels, e.g. by engaging the vessel; Underwater collecting of buoyant contents, such as liquid, particulate or gaseous contents, escaping from sunken vessels, e.g. using funnels, or tents for recovery of escaping hydrocarbons
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63C—LAUNCHING, HAULING-OUT, OR DRY-DOCKING OF VESSELS; LIFE-SAVING IN WATER; EQUIPMENT FOR DWELLING OR WORKING UNDER WATER; MEANS FOR SALVAGING OR SEARCHING FOR UNDERWATER OBJECTS
    • B63C7/00—Salvaging of disabled, stranded, or sunken vessels; Salvaging of vessel parts or furnishings, e.g. of safes; Salvaging of other underwater objects
    • B63C7/16—Apparatus engaging vessels or objects
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/0318—Processes
    • Y10T137/0402—Cleaning, repairing, or assembling
    • Y10T137/0441—Repairing, securing, replacing, or servicing pipe joint, valve, or tank
    • Y10T137/048—With content loading or unloading [e.g., dispensing, discharge assistant, etc.]
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/9029—With coupling
    • Y10T137/9138—Flexible

Definitions

  • the present patent application relates to a method for evacuating the liquid from a vessel of a vessel which does not have pumping means, or which has at least partially damaged pumping means, and / or which requires pumping means. additional.
  • “Pump” means a pump which, immersed in the fluid to be displaced, “pushes” it into the discharge pipe; by suction pump, a pump placed above the fluid to be moved and “sucked” by a volume depressurization phenomenon between the pump and the fluid.
  • the present invention is thus particularly intended to provide a method of evacuating the liquid from a tank of a partially emerged ship, which does not have these disadvantages.
  • the present invention also relates to a technical access particularly adapted to the implementation of the method according to the invention, remarkable in that it is steerable: this swiveling character makes it possible to direct the rigid pipe in which the pump is placed, in the areas of the tank where it is desired to carry out the pumping.
  • FIG. 1 On which can be seen a tank 1 of ship, of substantially parallelepiped shape, provided on its sky, that is to say on its upper wall, a technical access 3.
  • This technical access 3 is preferably placed centrally on the sky of the tank 1, without this being for all that limiting.
  • the tank 1 is a tank for transporting liquids, such as hydrocarbons, fitted to a vessel comprising a plurality of such tanks.
  • the problem to which the present invention relates is to recover the liquid located inside the tank when the vessel does not have pumping means, or has pumping means partially or totally damaged, and / or requires additional pumping means (for example due to a degradation of the flow rate of the original pumping means as a result of their damage, or because of a lack of origin of the flow of the pumping means), and remains at least partially emerged.
  • the technical access 3 comprises a pipe section 5 of short length, surmounted by a flange 7 on which is fixed a tape 9 by a plurality of screws and nuts 11.
  • the pipe section 5 can be made of preferably stainless steel and welded to the sky of the tank 1, and the tape 9 can be made of steel or aluminum, by way of non-limiting example (plastics such as PVC could also be suitable).
  • the vessel equipped with the vessel 1 does not have pumping means, or has partially or totally damaged pumping means, it is possible to access from outside, that is to say above the level of the surface of the water, at the access technique 3, and unscrewing the tape 9 of the pipe section 5.
  • This pipe section 5 is then inserted into a rigid pipe 13 whose length is sufficient to reach substantially the bottom of the vessel 1, as can be seen in FIG. figure 4 .
  • the rigid pipe 13 may consist of a single tube of predefined length or an assembly of tubes of shorter lengths facilitating its handling and offering more flexibility over the length of the final tube.
  • This rigid pipe 13, preferably of cylindrical shape, may be formed of plastic such as PVC, or in a light metal alloy.
  • this rigid pipe 13 is strictly less than that of the pipe section 5 of the technical access 3, so as to leave a gap.
  • the sealing relationship of the pump 15 with the rigid pipe 13 or with the technical access 3 can be achieved for example by a flange 19 placed at the periphery of this pump and bearing against the inner wall of this rigid pipe or this technical access.
  • the pump 15 is also connected by one or more cables or pipes 21 to an electrical or hydraulic supply system, necessary for the operation of this pump.
  • the cables or pipes 21 have a small diameter, unlike any flexible discharge or suction of the liquid 22 from the inside of the tank 1 towards the outside thereof, thanks to the pump 15.
  • the pump 15 can be started by sending in the cable 21 the fluid (electricity or hydraulic fluid) necessary for the operation of this pump.
  • This pump and powered energy can realize its suction function, or discharge to the outside, inside the rigid pipe 13 or the hose when there is one.
  • the rigid pipe 13 directs the pump 15 and its associated discharge or suction hose when there is one, exactly where we want to. inside the tank 1, and to prevent any blockage of this pump and / or this hose in equipment likely to be inside this tank 1 such as other pipes, ladders, stairs, ribs, reinforcing elements, other pumps etc.
  • this pump 15 is connected to the outside only by a flexible suspension cable 17 and by at least one simple power supply line or in hydraulic fluid 21, allows the very rapid installation of this pump, unlike a conventional pump connected to the outside by a real discharge or suction hose, much more bulky and rigid.
  • the technical access 3 comprises several heads 3a, 3b, 3c, 3d each inclined towards the corners of the tank, as can be seen on the figure 5 : the dotted lines visible on this figure 5 indicate in this case the privileged directions that can occupy the rigid pipe 13 provided with its pump 15.
  • a plurality of technical accesses 3a, 3b, 3c, 3d, arranged in each of the upper corners of the vessel 1, can be provided, in this case making it possible to position the rigid pipe 13 in the direction indicated by the visible dotted lines in this figure .
  • this swiveling character makes it possible to direct the rigid pipe in which one place the pump in the areas of the tank where it is desired to carry out the pumping.
  • a first way to achieve such a steerable technical access 3 may be to provide that the pipe section 5 is connected to the vessel 1 by a bellows 24 integral with a plate 26 adapted to be fixed on said vessel 1; such a bellows, for sealing the assembly, may for example be formed of rubber.
  • a second way of achieving such a steerable technical access 3 may be to provide that the pipe section 5 of this technical access is mounted on a plate 26 adapted to be rotatably mounted an annular plate 28 integral with said vessel 1.
  • the plate 26 is adapted to be pivotally mounted by a ball bearing on the annular plate 28.
  • the plate 26 has annular grooves 30 adapted to cooperate with screws and nuts 32 integral with said annular plate 28.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Environmental & Geological Engineering (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)

Abstract

The method involves opening a technical access (3) of a tank (1), and introducing a rigid pipe (13) inside the tank via the technical access. A pump is placed inside the rigid pipe, where the pump is selected from a group comprising a pressure pump (15) arranged in a lower part of the pipe and a suction pump arranged in an upper part of the pipe. The pump is in sealing relationship with the rigid pipe. The pump is free from a discharge/suction hose, so that liquid (22) is discharged/sucked across the pipe. An independent claim is also included for a technical access for implementing a method for evacuating liquid from a tank of a partially emerged ship.

Description

La présente demande de brevet se rapporte à un procédé d'évacuation du liquide d'une cuve d'un navire ne disposant pas de moyens de pompage, ou disposant de moyens de pompage au moins partiellement endommagés, et/ou requérant des moyens de pompage additionnels.The present patent application relates to a method for evacuating the liquid from a vessel of a vessel which does not have pumping means, or which has at least partially damaged pumping means, and / or which requires pumping means. additional.

Lorsqu'un navire fait face à un incident ou connaît une fortune de mer et qu'il transporte une cargaison liquide telle que des hydrocarbures, se pose la question de pouvoir évacuer cette cargaison afin d'éviter son immobilisation ou des pollutions majeures telles que celles que l'on a pu connaître lors de récents naufrages qui ont été au coeur de l'actualité.When a ship encounters an incident or knows a sea fortune and that it carries a liquid cargo such as hydrocarbons, the question arises of being able to evacuate this cargo in order to avoid its immobilization or major pollution such as those that we have been able to know during recent shipwrecks that have been at the heart of the news.

Les techniques mises en oeuvre pour arriver à ces fins diffèrent selon que le navire est immergé ou partiellement émergé.The techniques used to achieve these ends differ depending on whether the ship is submerged or partially emerged.

Dans le premier cas, c'est-à-dire dans le cas d'un navire totalement immergé, on utilise classiquement des techniques dans lesquelles on fait pénétrer de l'eau de mer dans les cuves où se trouve le liquide à récupérer : sous l'effet de la pression hydrostatique, cette eau de mer chasse le liquide, non miscible avec cette dernière, qui se trouve dans la cuve, que l'on peut alors aisément récupérer par des conduites flexibles d'évacuation.In the first case, that is to say in the case of a totally submerged vessel, techniques are conventionally used in which seawater is introduced into the tanks where the liquid to be recovered is located: the effect of the hydrostatic pressure, this seawater drives the liquid, immiscible with the latter, which is in the tank, which can then easily recover by flexible evacuation pipes.

Dans le second cas, où le navire demeure partiellement émergé, on ne peut utiliser la pression hydrostatique de l'eau de mer pour récupérer la totalité du contenu des cuves, et l'on doit recourir à des moyens de pompage pour extraire le reste du liquide.In the second case, where the ship remains partially emerged, the hydrostatic pressure of the seawater can not be used to recover the entire contents of the tanks, and pumping means must be used to extract the remainder of the vessel. liquid.

Pour cela, classiquement, soit on descend dans les cuves des pompes connectées à des flexibles de refoulement vers l'extérieur de la cuve du liquide, soit on place sur le pont une pompe munie d'un flexible pour aspirer le contenu de la cuve vers l'extérieur.For this, classically, either one goes down in the tanks of the pumps connected to discharge hoses to the outside of the tank of the liquid, or is placed on the bridge a pump provided with a hose to suck the contents of the tank to outside.

Est entendu par pompe refoulante, une pompe qui, plongée dans le fluide à déplacer, le « pousse » dans la conduite de refoulement ; par pompe aspirante, une pompe placée au dessus du fluide à déplacer et qui « l'aspire » par un phénomène de dépressurisation du volume compris entre la pompe et le fluide."Pump" means a pump which, immersed in the fluid to be displaced, "pushes" it into the discharge pipe; by suction pump, a pump placed above the fluid to be moved and "sucked" by a volume depressurization phenomenon between the pump and the fluid.

Dans le cas où l'on descend des pompes à l'intérieur des cuves, il est difficile de les diriger à l'intérieur des cuves, et il n'est pas rare qu'elles aillent se coincer derrière des équipements (canalisations, échelles, escaliers, pompes etc.) ou des éléments de renforts (poutres, nervures, couples ...) situés à l'intérieur des cuves.In the case where pumps are lowered inside the tanks, it is difficult to direct them inside the tanks, and it is not uncommon for them to will get stuck behind equipment (pipes, ladders, stairs, pumps etc.) or reinforcing elements (beams, ribs, couples ...) located inside the tanks.

De plus, les flexibles de refoulement auxquelles elles sont connectées sont massifs, et rendent malaisée et longue l'installation de ces pompes sur les sites d'intervention.In addition, the discharge hoses to which they are connected are massive, and make it difficult and long installation of these pumps on the intervention sites.

Dans le cas de l'aspiration depuis le pont, des contraintes physiques limitent la hauteur maximale de pompage.In the case of suction from the deck, physical constraints limit the maximum pumping height.

La présente invention a ainsi notamment pour but de fournir un procédé d'évacuation du liquide d'une cuve d'un navire partiellement émergé, qui ne présente pas ces inconvénients.The present invention is thus particularly intended to provide a method of evacuating the liquid from a tank of a partially emerged ship, which does not have these disadvantages.

On atteint ce but de l'invention, avec un procédé d'évacuation du liquide d'une cuve d'un navire partiellement émergé ne disposant pas de moyens de pompage, ou disposant de moyens de pompage au moins partiellement endommagés, et/ou requérant des moyens de pompage additionnels, cette cuve comportant au moins un accès technique, comprenant les étapes consistant à :

  • ouvrir cet accès technique,
  • introduire une conduite rigide à l'intérieur de la cuve par cet accès technique,
  • placer à l'intérieur de cette conduite rigide une pompe sélectionnée dans le groupe comprenant une pompe refoulante que l'on dispose dans la partie inférieure de ladite conduite, et une pompe aspirante que l'on dispose dans la partie supérieure de ladite conduite.
This object of the invention is achieved with a method of evacuating the liquid from a tank of a partially emerged vessel which does not have pumping means, or having pumping means at least partially damaged, and / or requiring additional pumping means, this tank comprising at least one technical access, comprising the steps of:
  • open this technical access,
  • introduce a rigid pipe inside the tank by this technical access,
  • placing inside this rigid pipe a pump selected from the group comprising a booster pump that is arranged in the lower part of said pipe, and a suction pump that is disposed in the upper part of said pipe.

Grâce à ces caractéristiques, on peut positionner précisément la pompe (et son flexible de refoulement ou d'aspiration quand il y en a un) à l'intérieur de la cuve, et supprimer le risque de coincement de cette pompe, (et de son flexible, le cas échéant), dans des équipements situés à l'intérieur de la cuve.Thanks to these features, it is possible to precisely position the pump (and its discharge or suction hose when there is one) inside the tank, and eliminate the risk of jamming of this pump, (and its flexible, where appropriate), in equipment located inside the tank.

Suivant d'autres caractéristiques optionnelles du procédé selon la présente invention :

  • ladite pompe est dépourvue de flexible de refoulement ou d'aspiration, et est adaptée pour être en relation d'étanchéité avec ladite conduite rigide, de sorte que l'on peut refouler ou aspirer ledit liquide à travers ladite conduite rigide : grâce à cette relation d'étanchéité on peut faire jouer à cette conduite rigide le rôle de conduite d'évacuation du liquide qui se trouve à l'intérieur de la cuve, par refoulement ou aspiration selon le type de pompe utilisée ; on peut de la sorte s'affranchir de tous les inconvénients d'encombrement et de temps d'installation mentionnés plus haut au sujet de la technique antérieure ;
  • lorsque ladite conduite rigide présente un diamètre strictement inférieur à celui dudit accès technique, on incline ladite conduite rigide de manière à aller pomper ledit fluide en différents points de l'intérieur de la cuve ;
  • lorsque ladite cuve comporte plusieurs accès techniques, on introduit ladite conduite rigide et ladite pompe, avec son flexible associé le cas échéant, dans au moins un de ces accès techniques ;
  • lorsque lesdits accès techniques sont inclinés en direction des coins de la cuve, on introduit ladite conduite rigide et ladite pompe, avec son flexible associé le cas échéant, dans ces accès techniques de manière à pomper le liquide se trouvant dans les coins de la cuve ;
  • lorsque ladite pompe est refoulante, on la descend dans ladite conduite rigide au moyen d'un câble de suspension ;
  • lorsque ladite pompe est refoulante, on la descend dans ladite conduite rigide au moyen de son câble d'alimentation électrique ou hydraulique ;
  • lorsque ladite pompe est refoulante et munie d'un flexible de refoulement, on descend cette pompe dans ladite conduite rigide au moyen de son flexible de refoulement ;
  • lorsque ladite pompe est aspirante et munie d'un flexible d'aspiration, on descend ledit flexible connecté à ladite pompe positionnée sur ledit accès technique, dans ladite conduite rigide.
According to other optional features of the method according to the present invention:
  • said pump is devoid of discharge or suction hose, and is adapted to be in sealing relation with said rigid pipe, so that said liquid can be forced back or sucked through said rigid pipe: thanks to this relation Sealing can be made to play this rigid pipe role of liquid evacuation pipe which is inside the tank, by discharge or suction depending on the type of pump used; in this way it is possible to overcome all the disadvantages of space and installation time mentioned above with regard to the prior art;
  • when said rigid pipe has a diameter strictly less than that of said technical access, said rigid pipe is inclined so as to pump said fluid at different points of the interior of the tank;
  • when said tank comprises several technical accesses, said rigid pipe and said pump, with its associated hose, if appropriate, are introduced into at least one of these technical accesses;
  • when said technical accesses are inclined towards the corners of the tank, said rigid pipe and said pump, with its associated hose, if any, are introduced into these technical ports so as to pump the liquid in the corners of the tank;
  • when said pump is forced, it is lowered into said rigid pipe by means of a suspension cable;
  • when said pump is forced, it is lowered into said rigid pipe by means of its power supply or hydraulic cable;
  • when said pump is forced and provided with a discharge hose, the pump is lowered into said rigid pipe by means of its discharge hose;
  • when said pump is aspirating and provided with a suction hose, said hose connected to said pump positioned on said technical access is lowered into said rigid pipe.

La présente invention se rapporte également à un accès technique particulièrement adapté à la mise en oeuvre du procédé selon l'invention, remarquable en ce qu'il est orientable : ce caractère orientable permet de diriger la conduite rigide dans laquelle on place la pompe, dans les zones de la cuve où l'on souhaite réaliser le pompage.The present invention also relates to a technical access particularly adapted to the implementation of the method according to the invention, remarkable in that it is steerable: this swiveling character makes it possible to direct the rigid pipe in which the pump is placed, in the areas of the tank where it is desired to carry out the pumping.

Suivant des caractéristiques optionnelles prise seules ou en combinaison de cet accès technique orientable :

  • cet accès technique comporte un soufflet solidaire d'une platine adaptée pour être fixée sur ladite cuve ;
  • cet accès technique est solidaire d'une platine adaptée pour être montée rotative par un roulement à billes sur un plateau annulaire solidaire de ladite cuve ;
  • ladite platine comporte des rainures annulaires aptes à coopérer avec des vis et écrous solidaires d'un plateau annulaire solidaire de ladite cuve : cet agencement particulier permet d'une part différentes orientations angulaires de l'accès technique, et d'autre part son montage/démontage aisé de la cuve afin d'éviter les problèmes de corrosion notamment du roulement à billes en dehors des périodes d'intervention.
Next optional features taken alone or in combination of this steerable technical access:
  • this technical access comprises a bellows secured to a plate adapted to be fixed on said tank;
  • this technical access is secured to a plate adapted to be rotatably mounted by a ball bearing on an annular plate secured to said vessel;
  • said plate comprises annular grooves adapted to cooperate with screws and nuts integral with an annular plate secured to said tank: this particular arrangement allows on the one hand different angular orientations of the technical access, and on the other hand its mounting / easy disassembly of the tank to avoid corrosion problems including ball bearings outside the intervention periods.

D'autres caractéristiques et avantages de la présente invention apparaîtront à la lumière de la description qui va suivre, et à I"examen des figures ci-annexées, dans lesquelles :

  • la figure 1 illustre en perspective une cuve de navire munie d'un accès technique central,
  • la figure 2 est une vue en perspective, à plus grande échelle, de cet accès technique,
  • la figure 3 est une vue en coupe longitudinale de cet accès technique,
  • la figure 4 illustre de manière schématique le procédé selon l'invention appliqué à la cuve de la figure 1,
  • la figure 5 est une vue en perspective d'une cuve de navire équipée d'un accès technique multi-têtes, chacune des têtes étant dirigée vers les coins de la cuve, et
  • la figure 6 est une vue en perspective d'une cuve de navire équipée d'une pluralité d'accès techniques disposés chacun dans les coins supérieurs de cette cuve.
  • la figure 7 est une vue en coupe d'une cuve de navire équipée d'un accès technique et muni d'une conduite rigide inclinée de manière à aller pomper du liquide en un point spécifique à l'intérieur de la cuve,
  • la figure 8 est une vue de détail, en perspective, d'un accès technique à soufflet, et
  • les figures 9 et 10 sont des vues de détail, en perspective, d'accès techniques rotatifs.
Other features and advantages of the present invention will emerge in the light of the description which follows, and to the examination of the figures appended hereto, in which:
  • the figure 1 illustrates in perspective a vessel tank equipped with a central technical access,
  • the figure 2 is a perspective view, on a larger scale, of this technical access,
  • the figure 3 is a longitudinal sectional view of this technical access,
  • the figure 4 schematically illustrates the process according to the invention applied to the tank of the figure 1 ,
  • the figure 5 is a perspective view of a vessel vessel equipped with a multi-head technical access, each of the heads being directed towards the corners of the tank, and
  • the figure 6 is a perspective view of a vessel vessel equipped with a plurality of technical accesses each disposed in the upper corners of this vessel.
  • the figure 7 is a sectional view of a vessel equipped with a technical access and provided with a rigid pipe inclined so as to pump liquid at a specific point inside the vessel,
  • the figure 8 is a detail view, in perspective, of a bellows technical access, and
  • the Figures 9 and 10 are detailed views, in perspective, of access rotary techniques.

Sur l'ensemble de ces figures, des références identiques ou analogues désignent des organes ou ensembles d'organes identiques ou analogues.In all of these figures, identical or similar references designate members or sets of identical or similar members.

On se reporte à présent à la figure 1, sur laquelle on peut voir une cuve 1 de navire, de forme sensiblement parallélépipédique, munie sur son ciel, c'est-à-dire sur sa paroi supérieure, d'un accès technique 3.We are now going back to figure 1 , on which can be seen a tank 1 of ship, of substantially parallelepiped shape, provided on its sky, that is to say on its upper wall, a technical access 3.

Cet accès technique 3 est de préférence placé de manière centrale sur le ciel de la cuve 1, sans que cela soit pour autant limitatif.This technical access 3 is preferably placed centrally on the sky of the tank 1, without this being for all that limiting.

La cuve 1 est une cuve de transport de liquides, tels que des hydrocarbures, équipant un navire comportant une pluralité de telles cuves.The tank 1 is a tank for transporting liquids, such as hydrocarbons, fitted to a vessel comprising a plurality of such tanks.

La problématique à laquelle se rapporte la présente invention est de récupérer le liquide situé à l'intérieur de cette cuve lorsque le navire ne dispose pas de moyens de pompage, ou bien dispose de moyens de pompage en partie ou totalement endommagés, et/ou requiert des moyens de pompage additionnels (par exemple en raison d'une dégradation du débit des moyens de pompage d'origine à la suite de leur endommagement, ou bien en raison d'une insuffisance d'origine du débit des moyens de pompage), et demeure au moins partiellement émergé.The problem to which the present invention relates is to recover the liquid located inside the tank when the vessel does not have pumping means, or has pumping means partially or totally damaged, and / or requires additional pumping means (for example due to a degradation of the flow rate of the original pumping means as a result of their damage, or because of a lack of origin of the flow of the pumping means), and remains at least partially emerged.

On suppose donc que l'accès technique 3 demeure au-dessus du niveau de l'eau, de sorte qu'il est accessible de l'extérieur pour réaliser les opérations de récupération du liquide situé à l'intérieur de la cuve 1, conformément au procédé qui va être décrit dans ce qui suit.It is therefore assumed that technical access 3 remains above the water level, so that it is accessible from the outside to achieve recovery operations of the liquid located inside the vessel 1, according to the method which will be described in the following.

Plus précisément, comme on peut le voir sur les figures 2 et 3, l'accès technique 3 comporte un tronçon de conduite 5 de courte longueur, surmonté d'un flasque 7 sur lequel est fixée une tape 9 par une pluralité de vis et d'écrous 11.More precisely, as can be seen from the Figures 2 and 3 the technical access 3 comprises a pipe section 5 of short length, surmounted by a flange 7 on which is fixed a tape 9 by a plurality of screws and nuts 11.

Le tronçon de conduite 5 peut être réalisé en acier de préférence inoxydable et soudé au ciel de la cuve 1, et la tape 9 peut être réalisée en acier ou en aluminium, à titre d'exemple nullement limitatif (des matières plastiques telles que le PVC pourraient également convenir).The pipe section 5 can be made of preferably stainless steel and welded to the sky of the tank 1, and the tape 9 can be made of steel or aluminum, by way of non-limiting example (plastics such as PVC could also be suitable).

Lorsque le navire équipé de la cuve 1 ne dispose pas de moyens de pompage, ou bien dispose de moyens de pompage en partie ou totalement endommagés, on accède depuis l'extérieur, c'est-à-dire au-dessus du niveau de la surface de l'eau, à l'accès technique 3, et on dévisse la tape 9 du tronçon de conduite 5.When the vessel equipped with the vessel 1 does not have pumping means, or has partially or totally damaged pumping means, it is possible to access from outside, that is to say above the level of the surface of the water, at the access technique 3, and unscrewing the tape 9 of the pipe section 5.

Lorsque l'on souhaite aller plus rapidement ou bien lorsque les conditions extérieures l'imposent, on ne prend pas la peine de dévisser la tape 9, et on la perce avec un appareil perforateur disponible sur le marché, pouvant prendre par exemple la forme d'une scie-cloche surmontée d'une vanne adaptée pour découper le métal.When one wishes to go faster or when the external conditions impose it, one does not take the trouble to unscrew the tape 9, and one pierces it with a perforating apparatus available on the market, being able to take for example the form of a bell saw surmounted by a valve adapted to cut the metal.

Une fois donc que l'on s'est débarrassé de la tape 9, on peut accéder à l'intérieur de la cuve 1 par le tronçon de conduite 5.Once so that we have got rid of the tape 9, we can access the inside of the tank 1 by the pipe section 5.

On insère alors dans ce tronçon de conduite 5, une conduite rigide 13 dont la longueur est suffisante pour atteindre sensiblement le fond de la cuve 1, comme cela est visible à la figure 4.This pipe section 5 is then inserted into a rigid pipe 13 whose length is sufficient to reach substantially the bottom of the vessel 1, as can be seen in FIG. figure 4 .

La conduite rigide 13 peut être constituée d'un unique tube de longueur prédéfinie ou bien d'un assemblage de tubes de longueurs inférieures facilitant sa manipulation et offrant plus de flexibilité sur la longueur du tube final.The rigid pipe 13 may consist of a single tube of predefined length or an assembly of tubes of shorter lengths facilitating its handling and offering more flexibility over the length of the final tube.

Cette conduite rigide 13, de forme préférentiellement cylindrique, peut être formée en matière plastique telle que le PVC, ou bien dans un alliage métallique léger.This rigid pipe 13, preferably of cylindrical shape, may be formed of plastic such as PVC, or in a light metal alloy.

De préférence, et comme cela est visible sur la figure 4, le diamètre de cette conduite rigide 13 est strictement inférieur à celui du tronçon de conduite 5 de l'accès technique 3, de manière à laisser un jeu.Preferably, and as is visible on the figure 4 the diameter of this rigid pipe 13 is strictly less than that of the pipe section 5 of the technical access 3, so as to leave a gap.

Une fois que cette conduite rigide 13 a été placée comme visible à la figure 4 :

  • soit on descend à l'intérieur de cette conduite rigide une pompe refoulante 15, par exemple au moyen d'un câble treuillé 17 auquel cette pompe est suspendue ; si cette pompe 15 est adaptée pour être en relation d'étanchéité avec la paroi intérieure de la conduite rigide 13 (voir ci-après), on peut refouler le contenu de la cuve directement par cette conduite rigide ; si la pompe 15 comporte un flexible de refoulement (auquel cas il n'est pas nécessaire qu'elle soit en relation d'étanchéité avec la paroi interne de la conduite rigide 13), le liquide à évacuer est refoulé par ce flexible ;
  • soit on place une pompe aspirante 15 ; si cette pompe 15 est adaptée pour être en relation d'étanchéité avec l'accès technique 3 ou avec la paroi intérieure de la partie supérieure de la conduite rigide 13, on peut aspirer le contenu de la cuve directement par cette conduite rigide ; si la pompe 15 comporte un flexible d'aspiration (auquel cas il n'est pas nécessaire qu'elle soit en relation d'étanchéité avec l'accès technique ou avec la paroi interne de la conduite rigide 13), le liquide à évacuer est aspiré par ce flexible.
Once this rigid pipe 13 has been placed as visible to the figure 4 :
  • either a pressure pump 15 is lowered inside this rigid pipe, for example by means of a winched cable 17 to which this pump is suspended; if this pump 15 is adapted to be in sealing relation with the inner wall of the rigid pipe 13 (see below), the contents of the tank can be discharged directly through this rigid pipe; if the pump 15 comprises a delivery hose (in which case it is not necessary that it is in sealing relationship with the inner wall of the rigid pipe 13), the liquid to be discharged is discharged by this hose;
  • either a suction pump 15 is placed; if this pump 15 is adapted to be in sealing relation with the technical access 3 or with the inner wall of the upper part of the rigid pipe 13, it is possible to suck the contents of the tank directly through this rigid pipe; if the pump 15 comprises a suction hose (in which case it is not necessary that it be in sealing relationship with the technical access or with the internal wall of the rigid pipe 13), the liquid to be evacuated is sucked by this hose.

La relation d'étanchéité de la pompe 15 avec la conduite rigide 13 ou avec l'accès technique 3 peut être réalisée par exemple par une collerette 19 placée à la périphérie de cette pompe et venant en appui contre la paroi interne de cette conduite rigide ou de cet accès technique.The sealing relationship of the pump 15 with the rigid pipe 13 or with the technical access 3 can be achieved for example by a flange 19 placed at the periphery of this pump and bearing against the inner wall of this rigid pipe or this technical access.

Grâce à cette relation d'étanchéité, ni l'air extérieur ni le liquide 22 situé à l'intérieur de la cuve 1 ne peuvent franchir la barrière de ce dispositif d'étanchéité.Due to this sealing relationship, neither the outside air nor the liquid 22 located inside the tank 1 can cross the barrier of this sealing device.

La pompe 15 est par ailleurs reliée par un ou plusieurs câbles ou tuyaux 21 à un système d'alimentation électrique ou hydraulique, nécessaire au fonctionnement de cette pompe.The pump 15 is also connected by one or more cables or pipes 21 to an electrical or hydraulic supply system, necessary for the operation of this pump.

Il est utile de préciser ici que les câbles ou tuyaux 21 présentent un faible diamètre, contrairement aux éventuels flexibles de refoulement ou d'aspiration du liquide 22 depuis l'intérieur de la cuve 1 vers l'extérieur de celle-ci, grâce à la pompe 15.It is useful to specify here that the cables or pipes 21 have a small diameter, unlike any flexible discharge or suction of the liquid 22 from the inside of the tank 1 towards the outside thereof, thanks to the pump 15.

Une fois donc que l'on a inséré la conduite rigide 13 à l'intérieur de la cuve 1 et la pompe 15 à l'intérieur de cette conduite comme cela est visible sur la figure 4, ou sur l'accès technique 3, on peut mettre en route la pompe 15 en envoyant dans le câble 21 le fluide (électricité ou fluide hydraulique) nécessaire au fonctionnement de cette pompe.Once so that the rigid pipe 13 has been inserted inside the tank 1 and the pump 15 inside this pipe as is visible on the figure 4 , or on technical access 3, the pump 15 can be started by sending in the cable 21 the fluid (electricity or hydraulic fluid) necessary for the operation of this pump.

Cette pompe ainsi alimentée en énergie peut réaliser sa fonction d'aspiration, ou de refoulement vers l'extérieur, à l'intérieur de la conduite rigide 13 ou du flexible lorsqu'il y en a un.This pump and powered energy can realize its suction function, or discharge to the outside, inside the rigid pipe 13 or the hose when there is one.

Dans le cas où aucun flexible de refoulement ou d'aspiration n'est inséré dans la conduite rigide 13, l'étanchéité prévue entre la pompe 15 et la paroi interne de la conduite rigide 13 permet de faire jouer à ladite conduite rigide 13 la fonction remplie classiquement dans l'art antérieur par les flexibles de refoulement ou d'aspiration des pompes utilisées jusqu'à ce jour.In the case where no discharge or suction hose is inserted in the rigid pipe 13, the sealing provided between the pump 15 and the inner wall of the rigid pipe 13 allows to play with said rigid pipe 13 the function typically filled in the prior art by the discharge or suction hoses of the pumps used to date.

Lorsque le navire ne repose pas complètement à l'horizontale sur le fond ou sur le récif sur lequel il est échoué, il peut être nécessaire d'incliner la conduite rigide 13 à l'intérieur de la cuve 1 pour aller chercher le liquide 22 où il se trouve : ceci est permis par le moindre diamètre de la conduite rigide 13 par rapport à celui du tronçon de conduite 5 de l'accès technique 3, comme indiqué figure 7.When the ship does not rest completely horizontally on the bottom or on the reef on which it is stranded, it may be necessary to incline the rigid pipe 13 inside the tank 1 to fetch the liquid 22 where it is found: this is allowed by the smaller diameter of the rigid pipe 13 with respect to that of the pipe section 5 of the technical access 3, as indicated figure 7 .

Comme on peut le comprendre à la lumière de ce qui précède, la conduite rigide 13 permet de diriger la pompe 15 et son flexible de refoulement ou d'aspiration associé lorsqu'il y en a un, exactement là ou l'on veut à l'intérieur de la cuve 1, et de prévenir tout blocage de cette pompe et/ou de ce flexible dans des équipements susceptibles de se trouver à l'intérieur de cette cuve 1 tels que d'autres canalisations, des échelles, escaliers, nervures, éléments de renforts, autres pompes etc.As can be understood in the light of the foregoing, the rigid pipe 13 directs the pump 15 and its associated discharge or suction hose when there is one, exactly where we want to. inside the tank 1, and to prevent any blockage of this pump and / or this hose in equipment likely to be inside this tank 1 such as other pipes, ladders, stairs, ribs, reinforcing elements, other pumps etc.

Dans le cas ou aucun flexible de refoulement ou d'aspiration n'est utilisé, le fait que cette pompe 15 ne soit reliée à l'extérieur que par un câble souple de suspension 17 et par au moins une simple ligne d'alimentation en électricité ou en fluide hydraulique 21, permet la mise en place très rapide de cette pompe, contrairement à une pompe classique reliée à l'extérieur par un véritable flexible de refoulement ou d'aspiration, beaucoup plus encombrant et rigide.In the case where no discharge or suction hose is used, the fact that this pump 15 is connected to the outside only by a flexible suspension cable 17 and by at least one simple power supply line or in hydraulic fluid 21, allows the very rapid installation of this pump, unlike a conventional pump connected to the outside by a real discharge or suction hose, much more bulky and rigid.

Pour faciliter l'accès de la pompe 15 notamment dans les coins de la cuve, on peut prévoir que l'accès technique 3 comporte plusieurs têtes 3a, 3b, 3c, 3d inclinées chacune en direction des coins de la cuve, comme cela est visible sur la figure 5 : les lignes en pointillés visibles sur cette figure 5 indiquent dans ce cas les directions privilégiées que peut occuper la conduite rigide 13 munie de sa pompe 15.To facilitate access of the pump 15 in particular in the corners of the tank, it can be provided that the technical access 3 comprises several heads 3a, 3b, 3c, 3d each inclined towards the corners of the tank, as can be seen on the figure 5 : the dotted lines visible on this figure 5 indicate in this case the privileged directions that can occupy the rigid pipe 13 provided with its pump 15.

Selon une autre variante visible sur la figure 6, on peut prévoir une pluralité d'accès techniques 3a, 3b, 3c, 3d, disposés en chacun des coins supérieurs de la cuve 1, permettant dans ce cas de positionner la conduite rigide 13 selon la direction indiquée par les pointillés visibles à cette figure.According to another variant visible on the figure 6 a plurality of technical accesses 3a, 3b, 3c, 3d, arranged in each of the upper corners of the vessel 1, can be provided, in this case making it possible to position the rigid pipe 13 in the direction indicated by the visible dotted lines in this figure .

Bien entendu, la présente invention n'est nullement limitée aux modes de réalisation décrits ci-dessus, fournis à titre de simples exemples.Of course, the present invention is not limited to the embodiments described above, provided as simple examples.

C'est ainsi par exemple que l'on pourrait envisager un accès technique particulièrement adapté à la mise en oeuvre du procédé selon l'invention, remarquable en ce qu'il est orientable : ce caractère orientable permet de diriger la conduite rigide dans laquelle on place la pompe, dans les zones de la cuve où l'on souhaite réaliser le pompage.For example, it would be possible to envisage a technical access particularly adapted to the implementation of the method according to the invention, which is remarkable in that it is steerable: this swiveling character makes it possible to direct the rigid pipe in which one place the pump in the areas of the tank where it is desired to carry out the pumping.

Comme on peut le voir sur la figure 8, une première manière de réaliser un tel accès technique orientable 3 peut être de prévoir que le tronçon de conduite 5 soit relié à la cuve 1 par un soufflet 24 solidaire d'une platine 26 adaptée pour être fixée sur ladite cuve 1 ; un tel soufflet, permettant de réaliser l'étanchéité de l'assemblage, peut par exemple être formé en caoutchouc.As can be seen on the figure 8 , a first way to achieve such a steerable technical access 3 may be to provide that the pipe section 5 is connected to the vessel 1 by a bellows 24 integral with a plate 26 adapted to be fixed on said vessel 1; such a bellows, for sealing the assembly, may for example be formed of rubber.

Comme on peut le voir sur les figures 9 et 10, une deuxième manière de réaliser un tel accès technique orientable 3 peut être de prévoir que le tronçon de conduite 5 de cet accès technique soit monté sur une platine 26 adaptée pour être montée rotative un plateau annulaire 28 solidaire de ladite cuve 1.As can be seen on the Figures 9 and 10 , a second way of achieving such a steerable technical access 3 may be to provide that the pipe section 5 of this technical access is mounted on a plate 26 adapted to be rotatably mounted an annular plate 28 integral with said vessel 1.

Dans la variante représentée à la figure 9, la platine 26 est adaptée pour être montée pivotante par un roulement à billes sur le plateau annulaire 28.In the variant shown in figure 9 , the plate 26 is adapted to be pivotally mounted by a ball bearing on the annular plate 28.

Dans la variante représentée à la figure 10, la platine 26 comporte des rainures annulaires 30 aptes à coopérer avec des vis et écrous 32 solidaires dudit plateau annulaire 28.In the variant shown in figure 10 the plate 26 has annular grooves 30 adapted to cooperate with screws and nuts 32 integral with said annular plate 28.

Dans cette dernière variante, pour réaliser le pompage du liquide, on commence alors par rapporter l'accès technique sur le plateau.In this latter variant, to achieve the pumping of the liquid, then begins to report technical access to the plateau.

En dehors de ces périodes de pompage, l'accès technique est déconnecté de la cuve, ce qui permet de s'affranchir des problèmes de corrosion notamment des roulements à billes de la variante représentée à la figure 9.Outside these periods of pumping, technical access is disconnected from the tank, which makes it possible to overcome the corrosion problems including ball bearings of the variant shown in FIG. figure 9 .

Claims (13)

Procédé d'évacuation du liquide (22) d'une cuve (1) d'un navire partiellement émergé ne disposant pas de moyens de pompage, ou disposant de moyens de pompage au moins partiellement endommagés, et/ou requérant des moyens de pompage additionnels, cette cuve comportant au moins un accès technique (3 ; 3a, 3b, 3c, 3d), comprenant les étapes consistant à : - ouvrir cet accès technique, - introduire une conduite rigide (13) à l'intérieur de la cuve (1) par cet accès technique, - placer à l'intérieur de cette conduite rigide (13) une pompe (15) sélectionnée dans le groupe comprenant une pompe refoulante que l'on dispose dans la partie inférieure de ladite conduite (13), et une pompe aspirante que l'on dispose dans la partie supérieure de ladite conduite (13). Method for evacuating the liquid (22) from a tank (1) of a partially-emerged vessel which does not have pumping means, or having at least partially damaged pumping means, and / or requiring additional pumping means this vessel having at least one technical access (3; 3a, 3b, 3c, 3d), comprising the steps of: - open this technical access, - Introduce a rigid pipe (13) inside the tank (1) by this technical access, placing inside this rigid pipe (13) a pump (15) selected from the group consisting of a pressure pump which is arranged in the lower part of said pipe (13), and a suction pump which is disposed in the upper part of said pipe (13). Procédé selon la revendication 1, dans lequel ladite pompe (15) est en relation d'étanchéité avec ladite conduite rigide (3) et est dépourvue de flexible de refoulement ou d'aspiration, de sorte que l'on peut refouler ou aspirer ledit liquide au travers de ladite conduite rigide (13).A method according to claim 1, wherein said pump (15) is in sealing relationship with said rigid pipe (3) and has no discharge or suction hose, so that said liquid can be forced back or aspirated through said rigid pipe (13). Procédé selon l'une des revendications 1 ou 2 lorsque ladite conduite rigide (13) présente un diamètre strictement inférieur à celui dudit accès technique (3 ; 3a, 3b, 3c, 3d), dans lequel on incline ladite conduite rigide (13) de manière à aller pomper ledit fluide (22) en différents points le l'intérieur de la cuve (1).Method according to one of claims 1 or 2 when said rigid pipe (13) has a diameter strictly less than that of said technical access (3; 3a, 3b, 3c, 3d), wherein said rigid pipe (13) is inclined way to pump said fluid (22) at different points inside the tank (1). Procédé selon l'une quelconque des revendications précédentes, lorsque ladite cuve (1) comporte plusieurs accès techniques (3a, 3b, 3c, 3d), dans lequel on introduit ladite conduite rigide (13) et ladite pompe (15), avec son flexible de refoulement ou d'aspiration associé le cas échéant, dans au moins l'un de ces accès techniques.Method according to any one of the preceding claims, when said tank (1) comprises several technical accesses (3a, 3b, 3c, 3d), into which said rigid pipe (13) and said pump (15) are introduced, with its flexible associated discharge or suction, where appropriate, in at least one of these technical accesses. Procédé selon la revendication 4 lorsque lesdits accès techniques (3a, 3b, 3c, 3d) sont inclinés en direction des coins de la cuve (1), dans lequel on introduit ladite conduite rigide (13) et ladite pompe (15), avec son flexible de refoulement ou d'aspiration associé le cas échéant, dans ces accès techniques de manière à pomper le liquide (22) se trouvant dans les coins de la cuve (1).A method according to claim 4 when said technical accesses (3a, 3b, 3c, 3d) are inclined towards the corners of the vessel (1), into which said rigid pipe (13) and said pump (15), with its associated discharge or suction hose, if any, in these access techniques to pump the liquid (22) in the corners of the tank (1). Procédé selon l'une quelconque des revendications précédentes, lorsque la pompe (15) est refoulante, dans lequel on descend cette pompe dans ladite conduite rigide (13) au moyen d'un câble de suspension (17).Method according to any one of the preceding claims, when the pump (15) is forced, in which the pump is lowered into said rigid pipe (13) by means of a suspension cable (17). Procédé selon l'une quelconque des revendications 1 à 5, lorsque la pompe (15) est refoulante, dans lequel dans on descend cette pompe dans ladite conduite rigide (13) au moyen de son câble d'alimentation électrique ou hydraulique (21).A method according to any one of claims 1 to 5, when the pump (15) is forced, in which in down this pump in said rigid pipe (13) by means of its power cable or hydraulic (21). Procédé selon l'une quelconque des revendications 1 à 5, à l'exclusion de la revendication 2, lorsque ladite pompe (15) est refoulante et est munie d'un flexible de refoulement, dans lequel on descend cette pompe dans ladite conduite rigide (13) au moyen de ce flexible.Method according to any one of claims 1 to 5, excluding claim 2, when said pump (15) is forced and is provided with a discharge hose, into which the pump is lowered into said rigid pipe ( 13) using this hose. Procédé selon l'une quelconque des revendications précédentes à l'exclusion de la revendication 2, lorsque ladite pompe (15) est aspirante et est munie d'un flexible d'aspiration, dans lequel on descend ledit flexible connecté à ladite pompe (15) positionnée dans la partie supérieure de ladite conduite rigide, dans ladite conduite rigide (13).A method according to any one of the preceding claims to the exclusion of claim 2, when said pump (15) is suction and is provided with a suction hose, into which said hose connected to said pump (15) is lowered positioned in the upper part of said rigid pipe, in said rigid pipe (13). Accès technique (3) particulièrement adapté à la mise en oeuvre du procédé conforme à l'une quelconque des revendications précédentes, caractérisé en ce qu'il est orientable.Technical access (3) particularly adapted to the implementation of the method according to any one of the preceding claims, characterized in that it is orientable. Accès technique (3) selon la revendication 10, caractérisé en ce qu'il comporte un soufflet (24) solidaire d'une platine (26) adaptée pour être fixée sur ladite cuve (1).Technical access (3) according to claim 10, characterized in that it comprises a bellows (24) integral with a plate (26) adapted to be fixed on said vessel (1). Accès technique (3) selon la revendication 10, caractérisé en ce que ladite platine (26) est adaptée pour être montée rotative par un roulement à billes sur un plateau annulaire (28) solidaire de ladite cuve (1).Technical access (3) according to claim 10, characterized in that said plate (26) is adapted to be rotatably mounted by a ball bearing on an annular plate (28) integral with said vessel (1). Accès technique (3) selon la revendication 10, caractérisé en ce que ladite platine (26) comporte des rainures annulaires (30) aptes à coopérer avec des vis et écrous (32) solidaires d'un plateau annulaire (28) solidaire de ladite cuve (1).Technical access (3) according to claim 10, characterized in that said plate (26) comprises annular grooves (30) adapted to cooperate with screws and nuts (32) integral with an annular plate (28) integral with said bowl (1).
EP20120163129 2011-05-13 2012-04-04 Method for evacuating liquid from a tank of a stricken ship Withdrawn EP2522568A1 (en)

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US20140311584A1 (en) 2014-10-23
FR2975072A1 (en) 2012-11-16
CN103596838A (en) 2014-02-19
US9446819B2 (en) 2016-09-20
FR2975072B1 (en) 2014-08-08
JP2014516856A (en) 2014-07-17
KR101826656B1 (en) 2018-02-07
RU2013154747A (en) 2015-06-20
CN103596838B (en) 2017-07-07
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KR20140021639A (en) 2014-02-20
BR112013027783A2 (en) 2017-11-07

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