EP2239190A1 - System for transferring a fluid between two paired vessels - Google Patents

System for transferring a fluid between two paired vessels Download PDF

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Publication number
EP2239190A1
EP2239190A1 EP10159216A EP10159216A EP2239190A1 EP 2239190 A1 EP2239190 A1 EP 2239190A1 EP 10159216 A EP10159216 A EP 10159216A EP 10159216 A EP10159216 A EP 10159216A EP 2239190 A1 EP2239190 A1 EP 2239190A1
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EP
European Patent Office
Prior art keywords
transfer
pipe
vessel
storage
connection
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.)
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Application number
EP10159216A
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German (de)
French (fr)
Inventor
Patrice Bastet
Philippe Cox
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.)
Technip Energies France SAS
Original Assignee
Technip France SAS
Europeenne dIngenierie Mecanique SA EURODIM
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Publication date
Application filed by Technip France SAS, Europeenne dIngenierie Mecanique SA EURODIM filed Critical Technip France SAS
Publication of EP2239190A1 publication Critical patent/EP2239190A1/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Withdrawn legal-status Critical Current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 
    • 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

Definitions

  • a fluid transfer system such as liquefied natural gas and / or cold vapor, between a first fluid storage vessel and a second vessel, which are placed side by side during transfer, the system being of the type comprising at least one flexible tubular transfer line movable between a storage position on one of the two vessels and a transfer position in which it is connected to the connection devices associated with the manifolds of the ships.
  • Transfer systems of this type which are known, have the major drawbacks of having a complex structure and being difficult to handle.
  • the object of the invention is to propose a system that overcomes these disadvantages.
  • the system according to the invention is characterized in that it comprises a device for storing a plurality of pipes, arranged near the connecting devices of the first ship, and individual displacement devices of each pipe. between its storage and transfer positions.
  • the system is characterized in that the storage device is in the form of a rack arranged above the connecting devices, on which the flexible pipes are placed next to one another, advantageously in the form of at least one sheet inclined relative to a horizontal plane and parallel to the longitudinal direction of the ship.
  • each flexible pipe is disposed on the rack, above the connection device to which it must be connected.
  • the system is characterized in that each pipe rests on the storage device in the state elongated and disconnected connection device to which it is likely to be connected.
  • the system is characterized in that the plane of the storage device on which the pipes lie is inclined towards the edge of the ship and each pipe is held on this inclined plane by a cable of held restrained on a winch, the movement of the pipe between its storage and transfer positions is by unwinding or winding the cable on the winch and sliding of the pipe on the inclined laying plane.
  • the system is characterized in that the system comprises connection devices arranged respectively on the first storage vessel and the second vessel whose connection flanges are arranged at the respective ship's edge. .
  • the system is characterized in that the connecting flange of a connecting device provided on the second vessel comprises an opening opening towards the outside, whose axis is oriented towards at the bottom, so that the connection tip of a transfer pipe is connectable to this tip by an upward movement, with the aid of a hoisting cable windable on a winch provided on the tip or on the end of the connection device, the latter and the end of the pipe comprising means for guiding the tip to the pinch type flange and trumpet.
  • the system is characterized in that the tip of the pipe provided on the end intended to be connected to the connection flange of a connection device of the first storage vessel is bent to be connectable to the flange and to the latter are associated centering means of the nozzle during its connection.
  • the system is characterized in that a transfer line, during the transfer of a fluid, freely extends in a chain between the connecting flanges of the two vessels.
  • the system is characterized in that a transfer line is produced in the form of a cryogenic hose.
  • the invention relates to a transfer system 1 of a fluid such as liquefied natural gas, from a first vessel 2 for storing fluid to a second vessel 3, which could be a shuttle, with the aid of a plurality of flexible pipes, such as hoses 4, the hoses also serving to ensure the return of the cold vapors from the shuttle 3 to the storage vessel 2.
  • a fluid such as liquefied natural gas
  • the two vessels are placed side by side, separated for example by a small distance of 4.5 to 5 meters.
  • the spacing between the ships is determined by the dimensions of the interposed spacing floats 5.
  • a part 6 of the transfer system 1 is provided on the storage vessel 2 and another part 7 on the shuttle 3.
  • the part 6 which equips the storage vessel 2 comprises, for each hose 4, a connection device 9 to the device manifold 14 of the ship.
  • the various connecting devices 9 are arranged next to each other, in the example shown in a central zone of the ship and are oriented perpendicularly to the longitudinal direction thereof.
  • Each device 9 essentially comprises a tubular element 7, one end of which is connected to the corresponding manifold while the other end carries a flange 8 for connection to the hose 4 during a transfer of fluid.
  • the connection devices 9 have the function of deporting the connection port of the manifold device at the longitudinal edge of the vessel. The edge is capped with a rounded protection piece 11, in the example shown semicircular, below the connection flanges, on which bears the hose in its transfer position.
  • the part 6 further comprises a device 12 for storing the hoses 4, in the form of a rack which extends above the connection devices 9 and supports, above each connection device, a flexible hose 4 which rests on a plane which is inclined downwards towards the ship's side and extends parallel to the longitudinal direction of the ship.
  • the hose is stored in an extended and disconnected state.
  • Each hose is retained on the rack by a cable 13 whose one end is fixed to the rear end of the hose while the other end is wound around a winch 15.
  • the hoses are oriented substantially perpendicular to the longitudinal direction of the vessel .
  • the part 7 of the transfer system 3, provided on the shuttle 2 comprises a plurality of connection devices 16 ( figures 7 and 8 ) which deport the connector of the manifold device 17 of the shuttle at least at the edge thereof.
  • the connecting devices 16 which are juxtaposed in the direction of the axis of the ship each comprise a connecting flange 19 which is disposed at the edge of the ship and is bent downwards so that the axis of its orifice opening towards the outside is inclined downwards.
  • the axis is oriented substantially vertically.
  • a pinch 20 which extends parallel to the axis of the orifice of the flange.
  • connection devices 16 that is to say the offset of the vessel manifold at the edge thereof, essentially comprise a tubular element 22 which extends substantially horizontally from the manifold and is held at its free end by a support leg 23 on the structure of the shuttle.
  • the connecting devices 16 may be permanently installed on the ship or made in the form of cuffs easily manipulated and movable between a storage position and a service position in which they are mounted on the manifold device of the shuttle.
  • the rear upper end 24 of each which is connected by a displacement cable 13, to a winch 15, is configured as a nozzle 26 that can be connected to the corresponding connection flange 8 of the storage vessel 2.
  • the tip 26 is bent so that the axis of its connector is oriented horizontally for its connection to the connecting flange.
  • the connection device 9 is provided with a centering piece 28 having a cutout 29 in the shape of a V which is open upwards and guides the endpiece 26 in its connection position at the bottom of the V ( Figures 5 and 6 ).
  • the other end 30 of the hose 3 is made in the form of a tip that carries the connector 31, a guide member advantageously in the shape of a trumpet 32 disposed next to the connector and whose axis is parallel to the axis of the connector, and a winch 33 around which is wound a cable 34.
  • the free end 35 thereof passes through the trumpet 32 so as to be fixed to the tip of the pinch 20 of the connection device 16 of the shuttle 3, when setting a fluid transfer position of the hose.
  • the tip 30 further comprises an emergency disconnector 37 which allows the separation of the connector 31 of the mouthpiece.
  • the trumpet 32 being secured to the connector and the winch of the remaining part of the tip, the connector and the trumpet remain attached to the connector 19 of the shuttle and the tip descends in a controlled manner by the hoisting cable which takes place winch, as illustrated in Figures 12 to 14 .
  • the reference 38 designates a device for opening and closing valves of the two sections of pipe that separate upon disconnection.
  • FIGS 9 to 11 illustrate three significant successive steps of the method of placing a hose 4 by moving it from its storage position on the storage rack 12, on which it rests in the elongated state and disconnected both the manifold of the shuttle 3 than that of the storage vessel 2.
  • the process of placing a hose 4 in its position of transfer of a fluid between the two ships 2 and 3 placed side by side begins with the actuation of the winch 15 for moving the hose 4 resting on the storage rack 12.
  • the winch 15 then unwinding the cable 13 allows the sliding of the hose 4 on the rack to the edge of the ship and beyond it, as shown on the figure 9 .
  • the cable 34 for hauling the nozzle 30 of the hose to the connection flange 19 of the shuttle connection device is then connected to the tip of the pinch 20 of this device.
  • the winch 15 ensures the continuation of the movement of the hose, as seen on the figure 10 , until its elbow end engaging in the V-shaped guide piece 29 reaches its position opposite the connection flange 9 of the connecting device to which it is to be connected.
  • the figure 11 illustrates this step of the flexible installation process.
  • the hose during the entire process of its implementation in its transfer position, is supported on the piece 11 at the edge of the ship 2 being retained by the displacement cable 13 and the hauling cable 34.
  • connection flange 19 of the connection device of the shuttle is connected to the connection flange 19 of the connection device of the shuttle, by hoisting the nozzle towards the flange 19.
  • This hoisting is done by winding the cable, which is connected to the tip of the pinch, on the winch and engagement of the trumpet 32 on the pinch 20 until the connector the tip comes into contact with the flange 19 for connecting the receiver connection device.
  • the hose extends in a chain, that is to say freely, between its two ends connected to the respective connection flanges.
  • the transfer system according to the invention allows the use of a large number of hoses that are stored on the ship without the storage becomes cumbersome and the movement thereof between their storage position and transfer requires complex means and difficult to handle. Indeed, by storing the hoses on the rack in the elongated and disconnected state, in one or more superimposed layers, above the connection devices to the manifolds, a small footprint is ensured. This advantageous storage also allows the use of simple structure and handling means for moving the hoses between their storage and transfer positions.
  • the configuration of the hose ends, the position of the connecting flanges at the edges of the vessels and the suspension of the flexible hoses at their ends ensures absorption of dynamic movements between the two vessels without this entailing mechanical stresses for the hoses.
  • the hose advantageously extends substantially perpendicularly to the longitudinal directions of the ships.
  • the invention proposes a system for transferring a fluid between a fluid storage vessel and a shuttle and the return of cold gas between these two vessels, which may comprise a relatively large number of hoses, while ensuring a very small footprint and absorption of dynamic movements even important between the two ships arranged side by side during a transfer.
  • the invention applies, generally speaking, to the transfer of fluids between two floating units, the term vessel being thus equivalent to the term floating unit.
  • the invention is usable for the loading of LNG carriers from a floating liquefaction unit and the transfer of any other fluid.
  • the invention applies to standard LNG carriers and does not require modification of their manifold devices.

Abstract

The system (1) has flexible transfer pipes (4) moved between a storage position of a fluid storage vessel (2) and a transfer position in which the pipes are connected to connection devices (16), where the pipes are in the form of a cryogenic hose. A storage device (12) stores the pipes that are arranged in vicinity of the connection devices. Individual displacement devices move each pipe between the storage and transfer positions. The storage device is carried in the form of a rack placed above the connection devices.

Description

L'invention concerne un système de transfert de fluides tel que du gaz naturel liquéfié et/ou de la vapeur froide, entre un premier navire de stockage du fluide et un deuxième navire, qui sont placés côte à côte au cours du transfert, le système étant du type comprenant au moins une conduite de transfert tubulaire souple déplaçable entre une position de stockage sur un des deux navires et une position de transfert dans laquelle elle est connectée aux dispositifs de connexion associé aux manifolds des navires.A fluid transfer system such as liquefied natural gas and / or cold vapor, between a first fluid storage vessel and a second vessel, which are placed side by side during transfer, the system being of the type comprising at least one flexible tubular transfer line movable between a storage position on one of the two vessels and a transfer position in which it is connected to the connection devices associated with the manifolds of the ships.

Les systèmes de transfert de ce type, qui sont connus, présentent les inconvénients majeurs d'avoir une structure complexe et d'être difficiles à manier.Transfer systems of this type, which are known, have the major drawbacks of having a complex structure and being difficult to handle.

L'invention a pour but de proposer un système qui pallie ces inconvénients.The object of the invention is to propose a system that overcomes these disadvantages.

Pour atteindre ce but, le système selon l'invention est caractérisé en ce qu'il comprend un dispositif de stockage d'une pluralité de conduites, disposées à proximité des dispositifs de connexion du premier navire, et des dispositifs de déplacement individuels de chaque conduite entre ses positions de stockage et de transfert.To achieve this purpose, the system according to the invention is characterized in that it comprises a device for storing a plurality of pipes, arranged near the connecting devices of the first ship, and individual displacement devices of each pipe. between its storage and transfer positions.

Selon une caractéristique de l'invention, le système est caractérisé en ce que le dispositif de stockage est réalisé sous forme d'un râtelier disposé au-dessus des dispositifs de connexion, sur lequel sont placées les conduites souples les unes à côté des autres, avantageusement sous forme d'au moins une nappe inclinée par rapport à un plan horizontal et parallèle à la direction longitudinale du navire.According to one characteristic of the invention, the system is characterized in that the storage device is in the form of a rack arranged above the connecting devices, on which the flexible pipes are placed next to one another, advantageously in the form of at least one sheet inclined relative to a horizontal plane and parallel to the longitudinal direction of the ship.

Selon une autre caractéristique de l'invention, le système est caractérisé en ce que chaque conduite souple est disposée sur le râtelier, au-dessus du dispositif de connexion auquel elle doit être connectée.According to another characteristic of the invention, the system is characterized in that each flexible pipe is disposed on the rack, above the connection device to which it must be connected.

Selon encore une autre caractéristique de l'invention, le système est caractérisé en ce que chaque conduite repose sur le dispositif de stockage à l'état allongé et déconnecté du dispositif de connexion auquel il est susceptible d'être raccordé.According to yet another characteristic of the invention, the system is characterized in that each pipe rests on the storage device in the state elongated and disconnected connection device to which it is likely to be connected.

Selon encore une autre caractéristique de l'invention, le système est caractérisé en ce que le plan du dispositif de stockage, sur lequel reposent les conduites est inclinée en direction du bord du navire et chaque conduite est retenue sur ce plan incliné par un câble de retenue enroulé sur un treuil, le déplacement de la conduite entre ses positions de stockage et de transfert se fait par déroulement ou enroulement du câble sur le treuil et glissement de la conduite sur le plan de pose incliné.According to yet another characteristic of the invention, the system is characterized in that the plane of the storage device on which the pipes lie is inclined towards the edge of the ship and each pipe is held on this inclined plane by a cable of held restrained on a winch, the movement of the pipe between its storage and transfer positions is by unwinding or winding the cable on the winch and sliding of the pipe on the inclined laying plane.

Selon encore une autre caractéristique de l'invention, le système est caractérisé en ce que le système comporte des dispositifs de connexion disposés respectivement sur le premier navire de stockage et le deuxième navire dont les brides de raccordement sont disposées au niveau du bord du navire respectif.According to yet another characteristic of the invention, the system is characterized in that the system comprises connection devices arranged respectively on the first storage vessel and the second vessel whose connection flanges are arranged at the respective ship's edge. .

Selon encore une autre caractéristique de l'invention, le système est caractérisé en ce que la bride de connexion d'un dispositif de connexion prévu sur le deuxième navire comporte un orifice d'ouverture vers l'extérieur, dont l'axe est orienté vers le bas, de façon que l'embout de connexion d'une conduite de transfert est connectable à cet embout par un mouvement ascendant, à l'aide d'un câble de hissage enroulable sur un treuil prévu sur l'embout ou sur l'extrémité du dispositif de connexion, ce dernier et l'embout de la conduite comprenant des moyens de guidage de l'embout à la bride du type à pinoche et à trompette.According to yet another characteristic of the invention, the system is characterized in that the connecting flange of a connecting device provided on the second vessel comprises an opening opening towards the outside, whose axis is oriented towards at the bottom, so that the connection tip of a transfer pipe is connectable to this tip by an upward movement, with the aid of a hoisting cable windable on a winch provided on the tip or on the end of the connection device, the latter and the end of the pipe comprising means for guiding the tip to the pinch type flange and trumpet.

Selon encore une autre caractéristique de l'invention, le système est caractérisé en ce que l'embout de la conduite prévu sur l'extrémité destinée à être connectée à la bride de raccordement d'un dispositif de connexion du premier navire de stockage est coudé pour être connectable à la bride et à cette dernière sont associés des moyens de centrage de l'embout lors de sa connexion.According to yet another characteristic of the invention, the system is characterized in that the tip of the pipe provided on the end intended to be connected to the connection flange of a connection device of the first storage vessel is bent to be connectable to the flange and to the latter are associated centering means of the nozzle during its connection.

Selon encore une autre caractéristique de l'invention, le système est caractérisé en ce qu'une conduite de transfert, lors du transfert d'un fluide, s'étend librement en chaînette entre les brides de raccordement des deux navires.According to yet another characteristic of the invention, the system is characterized in that a transfer line, during the transfer of a fluid, freely extends in a chain between the connecting flanges of the two vessels.

Selon encore une autre caractéristique de l'invention, le système est caractérisé en ce qu'une conduite de transfert est réalisée sous forme d'un flexible cryogénique.According to yet another characteristic of the invention, the system is characterized in that a transfer line is produced in the form of a cryogenic hose.

L'invention sera mieux comprise, et d'autres buts, caractéristiques, détails et avantages de celle-ci apparaîtront plus clairement au cours de la description explicative qui va suivre faite en référence aux dessins schématiques annexés donnés uniquement à titre d'exemple illustrant un mode de réalisation de l'invention et dans lesquels :

  • la figure 1 est une vue en perspective illustrant le système de transfert d'un fluide entre un navire de stockage du fluide et une navette de réception de celui-ci ;
  • la figure 2 est une vue de dessus de la figure 1 ;
  • la figure 3 est une vue en direction de la flèche III de la figure 2 ;
  • la figure 4 est une vue en perspective, à plus grande échelle, du dispositif de transfert d'un fluide, selon la figure 1, montrant notamment la partie du système prévue sur le navire de stockage ;
  • la figure 5 est une vue latérale à plus grande échelle du détail V de la figure 4 et montre les moyens du navire de stockage ;
  • la figure 6 est une vue partielle en coupe en direction de la flèche VI de la figure 5 ;
  • la figure 7 est une vue en perspective de la navette et montre notamment la partie du dispositif de transfert de fluide selon l'invention, qui est prévue sur ce navire ;
  • la figure 8 est une vue en perspective et à plus grande échelle de la partie du système de transfert qui est prévue sur le deuxième navire ;
  • les figures 9 à 11 sont des vues schématiques illustrant le système de transfert à trois étapes différentes d'établissement d'une liaison de transfert d'un fluide entre les deux navires ;
  • les figures 12 et 13 illustrent deux étapes d'une déconnexion d'urgence des flexibles ; et
  • la figure 14 est une vue à plus grande échelle du détail XIV de la figure 12.
The invention will be better understood, and other objects, features, details and advantages thereof will appear more clearly in the following explanatory description made with reference to the accompanying schematic drawings given solely by way of example illustrating a embodiment of the invention and in which:
  • the figure 1 is a perspective view illustrating the system for transferring a fluid between a fluid storage vessel and a receiving shuttle thereof;
  • the figure 2 is a top view of the figure 1 ;
  • the figure 3 is a view towards the arrow III of the figure 2 ;
  • the figure 4 is a perspective view, on a larger scale, of the device for transferring a fluid, according to the figure 1 , showing in particular the part of the system provided on the storage vessel;
  • the figure 5 is a larger scale side view of detail V of the figure 4 and shows the means of the storage vessel;
  • the figure 6 is a partial sectional view towards the arrow VI of the figure 5 ;
  • the figure 7 is a perspective view of the shuttle and shows in particular the part of the device of fluid transfer according to the invention, which is provided on this vessel;
  • the figure 8 is a perspective view and on a larger scale of the part of the transfer system that is provided on the second vessel;
  • the Figures 9 to 11 are schematic views illustrating the transfer system at three different stages of establishing a transfer link of a fluid between the two vessels;
  • the figures 12 and 13 illustrate two steps of emergency hose disconnection; and
  • the figure 14 is a larger-scale view of detail XIV of the figure 12 .

L'invention a pour objet un système de transfert 1 d'un fluide tel que du gaz naturel liquéfié, d'un premier navire 2 de stockage du fluide à un second navire 3, qui pourrait être une navette, à l'aide d'une pluralité de conduites souples, tels que des flexibles 4, les flexibles servant également à assurer le retour des vapeurs froides de la navette 3 au navire de stockage 2.The invention relates to a transfer system 1 of a fluid such as liquefied natural gas, from a first vessel 2 for storing fluid to a second vessel 3, which could be a shuttle, with the aid of a plurality of flexible pipes, such as hoses 4, the hoses also serving to ensure the return of the cold vapors from the shuttle 3 to the storage vessel 2.

Comme le montrent notamment les figures 2 et 3, lors d'un transfert, les deux navires sont placés côte à côte, séparés par exemple d'une faible distance de 4,5 à 5 mètres. Comme on le voit sur les figures, l'écart entre les navires est déterminé par les dimensions des flotteurs d'écartement interposés 5.As shown in particular by figures 2 and 3 during a transfer, the two vessels are placed side by side, separated for example by a small distance of 4.5 to 5 meters. As can be seen in the figures, the spacing between the ships is determined by the dimensions of the interposed spacing floats 5.

Une partie 6 du système de transfert 1 est prévue sur le navire de stockage 2 et une autre partie 7 sur la navette 3. La partie 6 qui équipe le navire de stockage 2 comporte, pour chaque flexible 4, un dispositif de connexion 9 au dispositif manifold 14 du navire. Les différents dispositifs de connexion 9 sont disposés les uns à côté des autres, dans l'exemple représenté dans une zone centrale du navire et sont orientés perpendiculairement à la direction longitudinale de celui-ci. Chaque dispositif 9 comprend essentiellement un élément tubulaire 7 dont une extrémité est connectée au manifold correspondant tandis que l'autre extrémité porte une bride 8 de raccordement au flexible 4 lors d'un transfert de fluide. Les dispositifs de connexion 9 ont pour fonction de déporter l'orifice de connexion du dispositif manifold au niveau du bord longitudinal du navire. Le bord est coiffé d'une pièce de protection 11 arrondie, dans l'exemple représenté semi-circulaire, en dessous des brides de raccordement, sur laquelle prend appui le flexible dans sa position de transfert.A part 6 of the transfer system 1 is provided on the storage vessel 2 and another part 7 on the shuttle 3. The part 6 which equips the storage vessel 2 comprises, for each hose 4, a connection device 9 to the device manifold 14 of the ship. The various connecting devices 9 are arranged next to each other, in the example shown in a central zone of the ship and are oriented perpendicularly to the longitudinal direction thereof. Each device 9 essentially comprises a tubular element 7, one end of which is connected to the corresponding manifold while the other end carries a flange 8 for connection to the hose 4 during a transfer of fluid. The connection devices 9 have the function of deporting the connection port of the manifold device at the longitudinal edge of the vessel. The edge is capped with a rounded protection piece 11, in the example shown semicircular, below the connection flanges, on which bears the hose in its transfer position.

La partie 6 comporte en outre un dispositif 12 de stockage des flexibles 4, en forme d'un râtelier qui s'étend au-dessus des dispositifs de connexion 9 et supporte, au-dessus de chaque dispositif de connexion, un flexible 4 qui repose sur un plan qui est incliné vers le bas en direction du bord du navire et s'étend parallèlement à la direction longitudinale de celui-ci. Le flexible est stocké à l'état allongé et déconnecté. Chaque flexible est retenu sur le râtelier par un câble 13 dont une extrémité est fixée à l'extrémité arrière du flexible tandis que l'autre extrémité est enroulée autour d'un treuil 15. Les flexibles sont orientés sensiblement perpendiculairement à la direction longitudinale du navire.The part 6 further comprises a device 12 for storing the hoses 4, in the form of a rack which extends above the connection devices 9 and supports, above each connection device, a flexible hose 4 which rests on a plane which is inclined downwards towards the ship's side and extends parallel to the longitudinal direction of the ship. The hose is stored in an extended and disconnected state. Each hose is retained on the rack by a cable 13 whose one end is fixed to the rear end of the hose while the other end is wound around a winch 15. The hoses are oriented substantially perpendicular to the longitudinal direction of the vessel .

La partie 7 du système de transfert 3, prévue sur la navette 2 comporte une pluralité de dispositifs de connexion 16 (figures 7 et 8) qui déportent le connecteur du dispositif de manifold 17 de la navette au moins au bord de celle-ci. Ainsi, les dispositifs de connexion 16 qui sont juxtaposés dans la direction de l'axe du navire comportent chacun une bride de raccordement 19 qui est disposé au niveau du bord du navire et est coudé vers le bas de façon que l'axe de son orifice d'ouverture vers l'extérieur soit incliné vers le bas. Dans l'exemple représenté, l'axe est orienté sensiblement verticalement. A côté de la bride 19 est prévue une pinoche 20 qui s'étend parallèlement à l'axe de l'orifice de la bride.The part 7 of the transfer system 3, provided on the shuttle 2 comprises a plurality of connection devices 16 ( figures 7 and 8 ) which deport the connector of the manifold device 17 of the shuttle at least at the edge thereof. Thus, the connecting devices 16 which are juxtaposed in the direction of the axis of the ship each comprise a connecting flange 19 which is disposed at the edge of the ship and is bent downwards so that the axis of its orifice opening towards the outside is inclined downwards. In the example shown, the axis is oriented substantially vertically. Next to the flange 19 is provided a pinch 20 which extends parallel to the axis of the orifice of the flange.

Comme il ressort des figures, les dispositifs de connexion 16, c'est-à-dire de déport du manifold du navire au niveau du bord de celui-ci comportent essentiellement un élément tubulaire 22 qui s'étend sensiblement horizontalement à partir du manifold et est maintenu à son extrémité libre par un pied 23 de support sur la structure de la navette. Les dispositifs de connexion 16 peuvent être installés en demeure sur le navire ou réalisés sous forme de manchettes facilement manipulables et mobiles entre une position de stockage et une position de service dans laquelle ils sont montés sur le dispositif manifold de la navette.As can be seen from the figures, the connection devices 16, that is to say the offset of the vessel manifold at the edge thereof, essentially comprise a tubular element 22 which extends substantially horizontally from the manifold and is held at its free end by a support leg 23 on the structure of the shuttle. The connecting devices 16 may be permanently installed on the ship or made in the form of cuffs easily manipulated and movable between a storage position and a service position in which they are mounted on the manifold device of the shuttle.

Concernant les flexibles 4, l'extrémité supérieure arrière 24 de chacun, qui est reliée par un câble de déplacement 13, à un treuil 15, est configurée en embout 26 susceptible d'être connecté à la bride de raccordement 8 correspondante du navire de stockage 2. L'embout 26 est coudé de façon que l'axe de son connecteur soit orienté horizontalement pour sa connexion à la bride de raccordement. Pour assurer la mise en place de l'embout 26 en face de la bride, le dispositif de connexion 9 est pourvu d'une pièce de centrage 28 présentant une découpe 29 en forme d'un V qui est ouverte vers le haut et guide l'embout 26 dans sa position de connexion au fond du V (figures 5 et 6).With regard to the hoses 4, the rear upper end 24 of each, which is connected by a displacement cable 13, to a winch 15, is configured as a nozzle 26 that can be connected to the corresponding connection flange 8 of the storage vessel 2. The tip 26 is bent so that the axis of its connector is oriented horizontally for its connection to the connecting flange. To ensure the insertion of the end piece 26 in front of the flange, the connection device 9 is provided with a centering piece 28 having a cutout 29 in the shape of a V which is open upwards and guides the endpiece 26 in its connection position at the bottom of the V ( Figures 5 and 6 ).

L'autre extrémité 30 du flexible 3 est réalisée sous forme d'un embout qui porte le connecteur 31,un organe de guidage avantageusement en forme d'une trompette 32 disposée à côté du connecteur et dont l'axe est parallèle à l'axe du connecteur, ainsi qu'un treuil 33 autour duquel est enroulé un câble 34. L'extrémité libre 35 de celui-ci passe à travers la trompette 32 de façon à pouvoir être fixée à la pointe de la pinoche 20 du dispositif de connexion 16 de la navette 3, lors de la mise en position de transfert d'un fluide du flexible.The other end 30 of the hose 3 is made in the form of a tip that carries the connector 31, a guide member advantageously in the shape of a trumpet 32 disposed next to the connector and whose axis is parallel to the axis of the connector, and a winch 33 around which is wound a cable 34. The free end 35 thereof passes through the trumpet 32 so as to be fixed to the tip of the pinch 20 of the connection device 16 of the shuttle 3, when setting a fluid transfer position of the hose.

L'embout 30 comporte en outre un déconnecteur d'urgence 37 qui permet la séparation du connecteur 31 de l'embout. La trompette 32 étant solidaire du connecteur et le treuil de la partie restante de l'embout, le connecteur et la trompette restent accrochés au connecteur 19 de la navette et l'embout descend d'une façon contrôlée par le câble de hissage qui se déroule du treuil, comme cela est illustré aux figures 12 à 14. La référence 38 désigne un dispositif de vannes d'ouverture et de fermeture des deux tronçons de conduit qui se séparent lors de la déconnexion.The tip 30 further comprises an emergency disconnector 37 which allows the separation of the connector 31 of the mouthpiece. The trumpet 32 being secured to the connector and the winch of the remaining part of the tip, the connector and the trumpet remain attached to the connector 19 of the shuttle and the tip descends in a controlled manner by the hoisting cable which takes place winch, as illustrated in Figures 12 to 14 . The reference 38 designates a device for opening and closing valves of the two sections of pipe that separate upon disconnection.

Les figures 9 à 11 illustrent trois étapes successives significatives du procédé de mise en place d'un flexible 4 en le déplaçant de sa position de stockage sur le râtelier de stockage 12, sur lequel il repose à l'état allongé et déconnecté aussi bien du manifold de la navette 3 que de celui du navire de stockage 2.The Figures 9 to 11 illustrate three significant successive steps of the method of placing a hose 4 by moving it from its storage position on the storage rack 12, on which it rests in the elongated state and disconnected both the manifold of the shuttle 3 than that of the storage vessel 2.

Le processus de mise en place d'un flexible 4 dans sa position de transfert d'un fluide entre les deux navires 2 et 3 placés côte à côte commence par l'actionnement du treuil 15 de déplacement du flexible 4 reposant sur le râtelier de stockage 12. Le treuil 15 en déroulant alors le câble 13 permet le glissement du flexible 4 sur le râtelier vers le bord du navire et au-delà de celui-ci, comme cela est montré sur la figure 9. Le câble 34 de hissage de l'embout 30 du flexible vers la bride de raccordement 19 du dispositif de connexion de la navette est ensuite connecté à la pointe de la pinoche 20 de ce dispositif. Puis, en continuant le déroulement du câble 13 de déplacement du flexible, le treuil 15 assure la poursuite du mouvement du flexible, comme on le voit sur la figure 10, jusqu'à ce que son embout coudé, en s'engageant dans la pièce de guidage 28 en V 29 parvienne dans sa position en face de la bride de raccordement 9 du dispositif de connexion auquel il doit être raccordé. La figure 11 illustre cette étape du processus de mise en place du flexible.The process of placing a hose 4 in its position of transfer of a fluid between the two ships 2 and 3 placed side by side begins with the actuation of the winch 15 for moving the hose 4 resting on the storage rack 12. The winch 15 then unwinding the cable 13 allows the sliding of the hose 4 on the rack to the edge of the ship and beyond it, as shown on the figure 9 . The cable 34 for hauling the nozzle 30 of the hose to the connection flange 19 of the shuttle connection device is then connected to the tip of the pinch 20 of this device. Then, continuing the unwinding of the cable 13 for moving the hose, the winch 15 ensures the continuation of the movement of the hose, as seen on the figure 10 , until its elbow end engaging in the V-shaped guide piece 29 reaches its position opposite the connection flange 9 of the connecting device to which it is to be connected. The figure 11 illustrates this step of the flexible installation process.

Comme il ressort notamment des figures 10 et 11, le flexible, pendant tout le processus de sa mise en place dans sa position de transfert, est en appui sur la pièce 11 au bord du navire 2 en étant retenu par le câble de déplacement 13 et le câble de hissage 34.As is clear from the figures 10 and 11 , the hose, during the entire process of its implementation in its transfer position, is supported on the piece 11 at the edge of the ship 2 being retained by the displacement cable 13 and the hauling cable 34.

Puis, après le raccordement au dispositif de connexion 9 du navire 2, l'autre embout 30 du flexible, qui comporte la trompette de guidage 32 et le treuil 33, est connectée à la bride de raccordement 19 du dispositif de connexion de la navette, par hissage de l'embout vers la bride 19. Ce hissage se fait par enroulement du câble, qui est connecté à la pointe de la pinoche, sur le treuil et engagement de la trompette 32 sur la pinoche 20 jusqu'à ce que le connecteur de l'embout vienne en contact avec la bride 19 de raccordement du dispositif de connexion récepteur. Le flexible s'étend en chaînette, c'est-à-dire librement, entre ses deux extrémités connectées aux brides de raccordement respectives.Then, after the connection to the connection device 9 of the ship 2, the other end of the hose, which includes the guiding trumpet 32 and the winch 33, is connected to the connection flange 19 of the connection device of the shuttle, by hoisting the nozzle towards the flange 19. This hoisting is done by winding the cable, which is connected to the tip of the pinch, on the winch and engagement of the trumpet 32 on the pinch 20 until the connector the tip comes into contact with the flange 19 for connecting the receiver connection device. The hose extends in a chain, that is to say freely, between its two ends connected to the respective connection flanges.

Il ressort de la description du système selon l'invention, qui vient d'être faite, que celui-ci présente de multiples avantages majeurs. Le système de transfert selon l'invention permet l'utilisation d'un grand nombre de flexibles qui sont stockés sur le navire sans que le stockage devienne encombrant et le déplacement de ceux-ci entre leur position de stockage et de transfert nécessite des moyens complexes et difficiles à manier. En effet, en stockant les flexibles sur le râtelier à l'état allongé et déconnecté, dans une ou plusieurs nappes superposées, au-dessus des dispositifs de connexion aux manifolds, un faible encombrement est assuré. Ce stockage avantageux permet aussi l'emploi des moyens de structure et de manipulation simples pour assurer le déplacement des flexibles entre leurs positions de stockage et de transfert. La configuration des embouts des flexibles, la position des brides de raccordement au niveau des bords des navires et la suspension des flexibles en chaînette à leurs extrémités assure une absorption des mouvements dynamiques entre les deux navires sans que cela n'entraîne des contraintes mécaniques pour les flexibles. Dans leur position de transfert, le flexible s'étend avantageusement sensiblement perpendiculairement aux directions longitudinales des navires.It follows from the description of the system according to the invention, which has just been made, that it has many major advantages. The transfer system according to the invention allows the use of a large number of hoses that are stored on the ship without the storage becomes cumbersome and the movement thereof between their storage position and transfer requires complex means and difficult to handle. Indeed, by storing the hoses on the rack in the elongated and disconnected state, in one or more superimposed layers, above the connection devices to the manifolds, a small footprint is ensured. This advantageous storage also allows the use of simple structure and handling means for moving the hoses between their storage and transfer positions. The configuration of the hose ends, the position of the connecting flanges at the edges of the vessels and the suspension of the flexible hoses at their ends ensures absorption of dynamic movements between the two vessels without this entailing mechanical stresses for the hoses. In their transfer position, the hose advantageously extends substantially perpendicularly to the longitudinal directions of the ships.

De plus, une déconnexion d'urgence des flexibles est possible, sans qu'ils heurtent le navire puisque leurs embouts côté navette sont descendus à vitesse contrôlée par le câble de hissage 34 associé au treuil 33 dont il se libère en fin de déroulement comme le montrent les figures 12 et 13. Par conséquent, et en résumé, l'invention propose un système de transfert d'un fluide entre un navire de stockage du fluide et une navette et le retour de gaz froid entre ces deux navires, qui peut comprendre un nombre relativement important de flexibles, tout en assurant un encombrement très faible et une absorption des mouvements dynamiques même importants entre les deux navires disposés côte à côte lors d'un transfert.In addition, an emergency disconnection of the hoses is possible without hitting the vessel since their end caps shuttle side descended at a controlled speed by the hoist cable 34 associated with the winch 33 which is released at the end of unwinding as the show the figures 12 and 13 . Therefore, and in summary, the invention proposes a system for transferring a fluid between a fluid storage vessel and a shuttle and the return of cold gas between these two vessels, which may comprise a relatively large number of hoses, while ensuring a very small footprint and absorption of dynamic movements even important between the two ships arranged side by side during a transfer.

L'invention s'applique, de façon générale au transfert de fluides entre deux unités flottantes, le terme navire étant ainsi équivalent au terme unité flottante. Ainsi, l'invention est utilisable pour le chargement de méthaniers depuis une unité flottante de liquéfaction et au transfert de tout autre fluide. L'invention s'applique à des méthaniers standard et ne nécessite pas de modification de leurs dispositifs manifolds.The invention applies, generally speaking, to the transfer of fluids between two floating units, the term vessel being thus equivalent to the term floating unit. Thus, the invention is usable for the loading of LNG carriers from a floating liquefaction unit and the transfer of any other fluid. The invention applies to standard LNG carriers and does not require modification of their manifold devices.

Claims (11)

Système de transfert d'un fluide tel que du gaz naturel liquéfié et/ou de la vapeur froide de retour, entre un premier navire de stockage du fluide et un deuxième navire, qui sont placés côte à côte au cours d'un transfert, le système étant du type comprenant au moins une conduite de transfert souple déplaçable entre une position de stockage sur le premier navire et une position de transfert dans laquelle elle est connectée aux dispositifs de connexion associés aux manifolds des deux navires, caractérisé en ce qu'il comprend un dispositif de stockage (12) d'une pluralité de conduites (4), disposées à proximité des dispositifs de connexion (9) du premier navire, et des dispositifs (13, 15) de déplacement individuels de chaque conduite (4) entre ses positions de stockage et de transfert.A system for transferring a fluid such as liquefied natural gas and / or cold return steam between a first fluid storage vessel and a second vessel, which are placed side by side during a transfer, the system being of the type comprising at least one flexible transfer line movable between a storage position on the first vessel and a transfer position in which it is connected to the connection devices associated with the manifolds of the two vessels, characterized in that it comprises a storage device (12) for a plurality of pipes (4), arranged near the connection devices (9) of the first vessel, and individual displacement devices (13, 15) for each pipe (4) between its storage and transfer positions. Système selon la revendication 1, caractérisé en ce que le dispositif de stockage (12) est réalisé sous forme d'un râtelier disposé au-dessus des dispositifs de connexion (9), sur lequel sont placées les conduites souples (4) les unes à côté des autres, avantageusement sous forme d'au moins une nappe vers le bas en direction du bord du navire.System according to Claim 1, characterized in that the storage device (12) is designed as a rack arranged above the connecting devices (9), on which the flexible lines (4), next to the others, advantageously in the form of at least one layer down towards the edge of the ship. Système selon la revendication 2, caractérisé en ce que chaque conduite souple (4) est disposée sur le râtelier (12), au-dessus du dispositif de connexion (9) auquel elle doit être connectée.System according to claim 2, characterized in that each flexible pipe (4) is arranged on the rack (12) above the connection device (9) to which it is to be connected. Système selon l'une des revendications 1 à 3, caractérisé en ce que chaque conduite (4) repose sur le dispositif de stockage (12) à l'état allongé et déconnecté du dispositif de connexion (9) auquel il est susceptible d'être raccordé.System according to one of claims 1 to 3, characterized in that each pipe (4) rests on the storage device (12) in the elongated state and disconnected from the connection device (9) to which it is likely to be connected. Système selon la revendication 4, caractérisé en ce que le plan du dispositif de stockage (12), sur lequel reposent les conduites (4) est inclinée en direction du bord du navire et chaque conduite (4) est retenue sur ce plan incliné par un câble de retenue (13) enroulé sur un treuil (15), le déplacement de la conduite entre ses positions de stockage et de transfert se fait par déroulement ou enroulement du câble sur le treuil et glissement de la conduite sur le plan de pose incliné.System according to Claim 4, characterized in that the plane of the storage device (12) on which the lines (4) rest is inclined in the direction of the edge of the ship and each pipe (4) is retained on this inclined plane by a retaining cable (13) wound on a winch (15), the movement of the pipe between its storage and transfer positions is by unwinding or winding cable on the winch and sliding of the pipe on the inclined plane of installation. Système selon l'une des revendications 1 à 5, caractérisé en ce que le système comporte des dispositifs de connexion (9) et (16) disposés respectivement sur le premier navire de stockage (2) et le deuxième navire (3) dont les brides de raccordement (8, 19) sont disposées au niveau du bord du navire respectif (2, 3).System according to one of claims 1 to 5, characterized in that the system comprises connection devices (9) and (16) arranged respectively on the first storage vessel (2) and the second vessel (3) whose flanges (8, 19) are arranged at the respective ship's edge (2, 3). Système selon la revendication 6, caractérisé en ce que la bride de connexion (19) d'un dispositif de connexion (16) prévu sur le deuxième navire (3) comporte un orifice d'ouverture vers l'extérieur, dont l'axe est orienté vers le bas, de façon que l'embout de connexion (30) d'une conduite de transfert (4) est connectable à cet embout par un mouvement ascendant, à l'aide d'un câble de hissage (34) enroulable sur un treuil (33) prévu sur l'embout (30) ou sur l'extrémité du dispositif de connexion, ce dernier et l'embout de la conduite comprenant des moyens de guidage de l'embout à la bride du type à pinoche (20) et à trompette (32).System according to claim 6, characterized in that the connecting flange (19) of a connecting device (16) provided on the second vessel (3) has an opening opening towards the outside, whose axis is downwardly, so that the connecting end (30) of a transfer pipe (4) is connectable to this endpiece by an upward movement, with the aid of a hoisting cable (34) wound on a winch (33) provided on the end piece (30) or on the end of the connecting device, the latter and the end of the pipe comprising means for guiding the end piece to the pinch-type flange (20). ) and trumpet (32). Système selon l'une des revendications 1 à 7, caractérisé en ce que l'embout (20) de la conduite (4) prévu sur l'extrémité destinée à être connectée à la bride de raccordement (8) d'un dispositif de connexion (9) du premier navire de stockage est coudé pour être connectable à la bride (8) et à cette dernière sont associés des moyens de centrage (28, 29) de l'embout lors de sa connexion.System according to one of claims 1 to 7, characterized in that the end piece (20) of the pipe (4) provided on the end intended to be connected to the connection flange (8) of a connection device (9) of the first storage vessel is bent to be connectable to the flange (8) and the latter are associated centering means (28, 29) of the nozzle during its connection. Système selon l'une des revendications 1 à 8, caractérisé en ce qu'une conduite de transfert (4), lors du transfert d'un fluide, s'étend librement en chaînette entre les brides de raccordement (8, 19) des deux navires.System according to one of claims 1 to 8, characterized in that a transfer line (4), during the transfer of a fluid, freely extends in a chain between the connecting flanges (8, 19) of the two ships. Système selon l'une des revendications 1 à 9, caractérisé en ce qu'une conduite de transfert est réalisée sous forme d'un flexible cryogénique.System according to one of Claims 1 to 9, characterized in that a transfer line is constructed as a cryogenic hose. Système selon l'une des revendications 1 à 10, caractérisé en ce que la conduite de transfert, lors d'un transfert, s'étend sensiblement perpendiculairement aux directions longitudinales des navires dans l'espace entre ceux-ci.System according to one of claims 1 to 10, characterized in that the transfer line, during a transfer, extends substantially perpendicular to the longitudinal directions of the ships in the space between them.
EP10159216A 2009-04-09 2010-04-07 System for transferring a fluid between two paired vessels Withdrawn EP2239190A1 (en)

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FR0952368A FR2944256B1 (en) 2009-04-09 2009-04-09 SYSTEM FOR TRANSFERRING FLUIDS BETWEEN TWO VESSELS PLACED SIDE-SIDE

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BR (1) BRPI1010298A2 (en)
FR (1) FR2944256B1 (en)
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SG (1) SG175151A1 (en)
WO (1) WO2010116113A2 (en)
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ZA201107247B (en) 2012-12-27
IL215520A0 (en) 2011-12-29
SG175151A1 (en) 2011-11-28
BRPI1010298A2 (en) 2016-03-22
FR2944256A1 (en) 2010-10-15
WO2010116113A3 (en) 2010-12-23
WO2010116113A8 (en) 2010-11-04
FR2944256B1 (en) 2012-12-21
WO2010116113A2 (en) 2010-10-14

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