专利摘要:
The invention relates to a system for transferring a fluid between a ship and an installation, the system comprising: - a mast (1) having a proximal end intended to be pivotally mounted on a deck (2) of the ship (3) and an end distal (7); - a fluid transfer line (4) extending along the mast (1); a flexible pipe (8) having a first end (9) connected to the fluid transfer line (4) and a second end (10) intended to be connected to a manifold (11) of the installation, the flexible pipe (8) being equipped with an emergency disconnect connection device comprising two elements able to separate automatically in a separation direction d when a separation force greater than a threshold is exerted; and - a guide element (29), carried by the mast (1), and having a convex surface (30) for guiding the flexible pipe (8) adapted to take up a tensile force of the flexible pipe (8) of such that this stress is exerted on the emergency disconnect connection device in the separation direction d.
公开号:FR3018766A1
申请号:FR1452471
申请日:2014-03-24
公开日:2015-09-25
发明作者:Guillaume Gelin;Patrick Englebert
申请人:Gaztransport et Technigaz SARL;
IPC主号:
专利说明:

[0001] TECHNICAL FIELD The invention relates to the field of fluid transfer and relates more particularly to the transfer of liquefied natural gas between a ship and an installation, such as a client ship.
[0002] BACKGROUND ART In the state of the art, it is known systems for transferring liquefied natural gas, at sea, between two ships. WO00134460 discloses a system for transferring liquefied natural gas between a liquefied natural gas production vessel and a liquefied natural gas transport vessel. The transfer system has three parallel flexible lines, two lines of which transfer the liquefied natural gas from the production vessel to the transport vessel, while the third line allows a transfer of gas from the transport vessel to the production vessel in order to to balance the pressures in the gaseous skies of the tanks of the two ships and thus to avoid that the pressure inside the tank of the production vessel does not fall. The three flexible pipes are suspended from a mast mounted to move on the deck of the production vessel and have a free end equipped with a connecting element which cooperates with a connecting element complementary to the transport ship. The connecting elements are equipped with emergency disconnection means for disconnecting them and interrupting the transfer of the liquefied natural gas. The emergency disconnection means are remotely controlled from the transport vessel via a hydraulic circuit. Such a transfer system is not entirely satisfactory. Indeed, the connection elements emergency disconnection being particularly heavy, their positioning at the free end of the flexible pipes makes the flexible pipes particularly complex to maneuver so that the connection operations are long to perform and insecure. In addition, the presence of a hydraulic control circuit of the emergency disconnect means increases the cost and complexity of the transfer system. Furthermore, it is also known transfer systems between a bunk vessel and a customer ship having flexible pipes equipped with emergency disconnect connection devices having two elements capable of separating automatically when a separation effort greater than one threshold is exercised. Also, such emergency disconnect connection devices do not require hydraulic control circuits. The emergency disconnect connection devices are disposed in a medial portion of each flexible conduit such that they are biased in traction in their direction of separation when a tensile force is exerted between the ends of the flexible conduits. However, such transfer systems are not completely satisfactory either. Indeed, in order not to risk damaging the hoses due to excessive bending stresses at the ends of the flexible pipe, the two ends of the flexible pipes must be substantially aligned. In addition, the emergency disconnect connection devices can disconnect inadvertently when they are subjected to tensile forces not acting in their direction of separation. However, it is in practice possible to align the two ends of the flexible pipes for a particular position of the manifold of the client ship. Also, such a transfer system does not adapt to a wide variety of manifold configurations of the client ship. In addition, the emergency disconnect connection devices are manipulated when connecting the flexible lines to the manifold of the client vessel which may damage them. SUMMARY An idea underlying the invention is to propose a system for transferring a fluid between a ship and an installation that is simple, secure, reliable and allows to adapt to a wide variety of configurations. According to one embodiment, the invention provides a system for transferring a fluid between a vessel and an installation comprising: - a mast having a proximal end intended to be pivotally mounted on a deck of the ship and a distal end; a fluid transfer line extending along the mast; a flexible pipe having a first end connected to the fluid transfer line and a second end intended to be connected to a manifold of the installation during a fluid transfer operation, the flexible pipe being equipped with a device emergency disconnect connection circuit comprising two elements able to separate automatically in a separation direction d when a separation effort greater than a threshold is exerted; and a guide element, carried by the mast, and having a convex guide surface of the flexible pipe able to take up a tensile force of the flexible pipe exerted between the first and the second ends of the flexible pipe when the the tensile force plates the flexible pipe against the convex guide surface, the convex guide surface being arranged with respect to the emergency disconnect connection device so that, when a tensile force exerted between the first and second ends of the flexible pipe plate the flexible pipe against the convex guide surface, the direction d separating the separable elements extends tangentially to said convex guide surface so that this force is exerted on the device emergency disconnect connection in the separation direction d. Thus, the emergency disconnect connection device does not require a hydraulic control circuit. In addition, the guide element makes it possible to ensure that, when a tensile force is exerted between the ends of the flexible pipe, this tensile force is exerted substantially in the direction d of separation of the two separable elements of the pipe. emergency disconnect connection device, which limits the forces exerted on the flexible pipe. The guide element also makes it possible to avoid untimely disconnections of the emergency disconnect connection device. The guide element also makes it possible to limit the bending stresses acting on the flexible pipe at the connection of the first end of the flexible pipe to the transfer line. Finally, the flexible pipe being suspended from a mobile mast, the transfer system can adapt to many different configurations.
[0003] According to embodiments, such a transfer system may comprise one or more of the following characteristics: the guide element is carried by the mast, at a distance from the distal end of the mast, the system comprising a saddle suspended from the mast; distal end of the mat and having a convex upper surface for supporting the flexible pipe. - The saddle is suspended at the distal end of the mast by means of a lifting device. Thus, the free end of the flexible pipe can be driven in a simple manner to the manifold of the installation and this without mechanically soliciting the flexible pipe. the distance between the guide element and the distal end of the mast is such that, when the mast is placed in an extreme raised position, the flexible pipe forms a loop between the guide element and the saddle, the radius of which curvature is greater than or equal to a minimum allowable curvature radius of the flexible pipe. - The guide element has a radius of curvature greater than or equal to a minimum bending radius of the flexible pipe. in the connection zone between the flexible pipe and the fluid transfer line, the fluid transfer line is oriented in an end direction of the transfer line having a longitudinal component, along the axis of the mat, which is directed towards one of the distal or proximal ends of the mast; the convex guide surface being directed towards said distal or proximal end of the mast to which the longitudinal component of the end direction of the fluid transfer line is directed. the end direction of the fluid transfer line is oriented tangentially to the convex guiding surface. - The emergency disconnect connection device is located at the first end of the flexible pipe to connect the flexible pipe and the fluid transfer line. the flexible pipe has a first flexible portion extending between its first end and the emergency disconnect connection device and a second flexible portion extending between the emergency disconnect connection device and its second end. the system comprises a plurality of fluid transfer lines extending along the mast and a plurality of flexible conduits each having a first end connected to the fluid transfer line, a second end intended to be connected to a manifold of the installation and an emergency disconnect connection device comprising two elements able to separate automatically in a separation direction d when a separation force greater than a threshold is exerted, the convex guide surface being arranged with respect to emergency disconnection connection devices so that, when tensile forces between the first and second ends of the flexible pipes press the flexible pipes against the convex guide surface, the directions of separation of the elements separable extend tangentially to said convex guide surface of t it ensures that efforts are exerted on the emergency disconnect connection devices in the separation direction d. - The convex guide surface comprises, for each flexible pipe, a guide groove, each of the guide grooves being bordered by partitions. - The guide element has a flared bell portion portion having a top equipped with a passage opening of the flexible pipes. the convex guide surface of the guide element is covered by a non-stick coating. the convex guide surface is equipped with a plurality of rollers mounted in rotation. the system comprises a braking device for controlling the fall speed of the flexible pipe during an emergency disconnection, the braking device comprising: a drum; a cable which is, on the one hand, wound around the drum and, on the other hand, fixed to one of the separable elements of the emergency disconnect connection device; - A rotating shaft associated with the drum so that a rotation of the drum in a direction of unwinding of the cable drives the shaft in rotation; a volumetric pump equipped with a rotor coupled in rotation to the shaft; and a closed loop hydraulic circuit, associated with the positive displacement pump, equipped with a flow regulator. the system comprises a plurality of fluid transfer lines extending along the mast and a plurality of flexible conduits each having a first end connected to the fluid transfer line, a second end intended to be connected to a manifold of the installation and an emergency disconnect connection device comprising two elements able to separate automatically; the braking device comprising for each flexible pipe, a drum and a cable wound around said drum and secured to one of the separable elements of the emergency disconnect connection device of said flexible pipe; each drum being associated with the shaft by means of a device, freewheel or nonreturn, unidirectional so that a rotation of the drum in a direction of unwinding of the cable drives the shaft in rotation in a first direction of rotation and that the shaft can freely rotate in the first direction of rotation without rotating the drum in the unwinding direction of the cable. - One end of the cable is fixed to a pin, the drum having a housing groove of said pin. According to one embodiment, the invention also provides a vessel equipped with a transfer system as mentioned above. According to one embodiment, the invention also provides a method of transferring a fluid in which, during the transfer operation, the mast is positioned in a position such that, when a tensile force is exerted between the first end and the second end of the flexible pipe, said flexible pipe is pressed against the convex guide surface. In one embodiment, the method includes a flexible pipe draining operation in which the mast is moved to a position in which the flexible pipe has a mast down to the manifold of the client vessel downwardly to allow flow by gravity of the fluid contained in the flexible pipe. According to one embodiment, the invention also provides a braking device for controlling the falling speed of a plurality of flexible pipes equipped with an emergency disconnect connection device, the braking device comprising for each flexible pipe a drum and a cable which is, on the one hand, wound around the drum and, on the other hand, fixed to one of the separable elements of the emergency disconnect connection device; the braking device comprising a movable shaft; a positive displacement pump equipped with a rotor rotatably coupled to the shaft; and a closed loop hydraulic circuit, associated with the positive displacement pump, equipped with a flow regulator, each drum being associated with the shaft by means of a device, freewheel or nonreturn, unidirectional so that a rotation of the drum in a direction of unwinding of the cable drives the shaft in rotation in a first direction of rotation and that the shaft can freely rotate in the first direction of rotation without rotating the drum in the unwinding direction of the cable .
[0004] Note that such a braking device can also find application to other transfer system that the transfer system which will be described below. In general, such a braking device can find applications in all transfer systems comprising a plurality of flexible pipes equipped with emergency disconnect connection device and whose fall is to be braked during emergency disconnections. BRIEF DESCRIPTION OF THE DRAWINGS The invention will be better understood, and other objects, details, features and advantages thereof will become more clearly apparent from the following description of several particular embodiments of the invention, given solely for the purposes of the invention. illustrative and not limiting, with reference to the accompanying drawings. - Figures 1 to 5 are views of a fluid transfer system, illustrating the steps of maneuvering the transfer system for connecting a ship to an installation. FIG. 6 is a detailed view of the mast end of the transfer system of FIGS. 1 to 5. FIGS. 7a and 7b illustrate an emergency disconnect connection device respectively in a connected state and in an offline state . - Figure 8 schematically illustrates the support and guidance of a flexible pipe of a transfer system according to one embodiment of the invention. FIGS. 9 to 13 are schematic views of transfer systems, according to five distinct embodiments, which illustrate, in solid lines, a rest position of a flexible pipe and, in dotted lines, a position of the flexible pipe. when a tensile force exerted between the first and second ends of the flexible pipe lays the flexible pipe against the guide element. FIG. 14 illustrates a guide element for flexible pipes according to one embodiment. - Figure 15 illustrates a flexible pipe guide member according to another embodiment. FIG. 16 is a perspective view of a braking device for controlling the fall speed of flexible pipes during an emergency disconnection. FIG. 17 is a perspective view, partially illustrating the braking device of FIG. 16. FIG. 18 illustrates a drum of the braking device of FIGS. 16 and 17 equipped with a pin allowing the cable to be released. FIG. 19 is a diagrammatic sectional view of the braking device of FIGS. 16 and 17. DETAILED DESCRIPTION OF EMBODIMENTS A transfer system will be described below for transferring fluid, such as liquefied natural gas (FIG. LNG), between a supply vessel and an installation, such as a customer ship. The supply vessel is, for example, a bunkering vessel in charge of supplying LNG to other ships, and the client vessel, an LNG powered vessel. With reference to FIGS. 1 to 6, it can be seen that the transfer system comprises a trellis mast 1 which is mounted on the deck 2 of the supplier ship 3. The truss mast 1 comprises three uprights assembled by a plurality of bracing crosspieces extending between the amounts. The mast 1 carries a plurality of transfer lines 4 which extend along the mast. The transfer lines 4 consist of rigid elements. The mast 1 carries, for example, three transfer lines 4. Two of the transfer lines 4 are connected to a liquefied natural gas storage tank of the supply vessel 3 and make it possible to transfer liquefied natural gas from the supply vessel 3 to the vessel customer. The third transfer line 4 allows the extraction of natural gas in the gaseous state from the client vessel 5 to the supply vessel 3. This third transfer line 4 can be connected to a natural gas re-liquefaction plant, onboard 3. In order to generate the pressure necessary for the transfer of the liquefied natural gas, it is advantageous to use on-board pumps on the supply vessel 3 and / or on-board pumps on the customer vessel 5. The transfer lines 4 have one end. distal 6 extending distally from the distal end 7 of the mast 1. Each of the distal ends 6 of the transfer lines 4 is connected to a flexible pipe 8. The flexible pipes 8 thus comprise a first end 9 which is connected to the transfer line 4 and a second end 10, free, which is intended to be connected to a manifold 11 of the client vessel 5 to allow a transfer fluid between the supplier ship 3 and the client ship 4.
[0005] The flexible pipes 8 are advantageously made of cryogenic pipes, such as composite pipes or double wall pipes, made of stainless steel, the intermediate space of which is lined with an insulating material. In one embodiment, the insulating material is depressed to improve its insulation characteristics.
[0006] The mast 1 is articulated on the deck 2 of the supplier ship 3. To do this, the mast 1 is pivotally mounted about a horizontal axis between a retracted position, shown in Figure 1, and a raised extreme position, shown on 4. In its extreme raised position, the mast 1 is here inclined at an angle of about 60 ° with respect to the bridge 2 of the supplier ship 3. The mast 1 is also rotatably mounted about a vertical axis . To do this, the mast 1 is mounted on a base 12 adapted to rotate about a vertical axis. In order to allow the movement of the mast 1 between its retracted position and its extreme raised position, the transfer system is equipped with a set of actuating cylinders 13 which each comprise an articulated end mounted on the uprights of the mast 1 and a second end articulated on the base 12. The transfer system comprises a saddle 14 for supporting flexible pipes 8 which is suspended at the distal end 7 of the mast 1. The saddle 14 is equipped with a convex upper surface 15 support flexible pipes 8.
[0007] The convex upper surface 15 is an arcuate surface whose radius of curvature is greater than or equal to the minimum allowable curvature radius of the flexible pipes 8. The minimum admissible radius of curvature corresponds to the minimum value of the radius up to which the flexible pipes 8 can be bent without deterioration or reduction of their service life. This value is usually specified by flexible pipe manufacturers. By way of example, the minimum permissible radius of curvature is of the order of 700 mm for cryogenic pipes having an outer diameter of the order of 170 mm and of the order of 500 mm for such cryogenic hoses with a diameter of outer diameter of the order of 100 mm. The saddle 14 is suspended at the distal end 7 of the mast 1 by means of a lifting device. The lifting device is a rope hoist. The lifting device comprises a drum 16 adapted to be rotated by a motor, a deflection pulley 17 disposed at the distal end 7 of the mast 1 and a cable 18, cooperating with the pulley 17, which is on the one hand, wound around the drum 16 and, on the other hand, fixed to the saddle 14. With reference to FIG. 6, it can be seen that the flexible ducts 8 comprise, near their first end 9, a connection device For example, such an emergency disconnect connection device 19 is illustrated in detail in a connected state, in FIG. 7a, and in a disconnected state, in FIG. 7b. The emergency disconnect connection device 19 comprises two separable elements 20, 21. The two elements 20, 21 are able to separate in a separation direction d when a separation force greater than a threshold is exerted. In the embodiment shown, the two elements 20, 21 each comprise a hollow cylindrical body 22 adapted to allow the circulation of the fluid. The two elements 20, 21 each comprise a fastening flange 23 for ensuring a tight connection with the fastening flange 23 of the other element. The fastening flanges 23 are secured to one another by means of a fastener 24 designed to break when a separation force greater than a determined threshold is exerted on the emergency disconnect connection device. 19.
[0008] Each of the separable elements 20, 21 is equipped with a valve 25 which is able to prevent the passage of the fluid, in the event of the elements 20, 21 being separated. In the embodiment shown, the valve 25 is mounted to move freely. inside the hollow cylindrical body 22 between an open position, illustrated in FIG. 7a, in which the valve 25 allows the passage of the fluid through the emergency disconnect connection device 19 and a closed position, illustrated in FIG. 7b, wherein the valve 25 provides a sealed contact against a shoulder 26 of the hollow cylindrical body 22 to prevent the passage of fluid. The valves 25 are each returned to their closed position by means of a spring 27. Furthermore, the valves 25 comprise pins 28 cooperating against each other when the two elements 20, 21 of the connecting device to emergency disconnection 19 are connected so as to compress the springs 27 and maintain the valves 25, in the open position. In an embodiment not shown, the valves are pivotally mounted between their open position and their closed position. Returning to FIG. 6, it can be seen that the transfer system is also equipped with a guiding element 29 which makes it possible to guide the flexible ducts 8 so that when a traction force is exerted on the ducts flexible 8 between their first end 9 and their second end 10, this force is exerted on the emergency disconnect connection device 19 in the direction of separation of the separable elements 20, 21. In the embodiment shown, the it is observed that a portion of the flexible pipe 8 extends between the emergency disconnect connection device 19 and the end 6 of the transfer line. Such an arrangement makes it possible to ensure that the direction of separation of the emergency disconnect connection device 19 is ideally positioned when a tensile force is exerted on the flexible pipe 8. The guide element 29 has a convex surface. The convex guide surface 30 has an arcuate shape having a radius of curvature greater than or equal to the minimum allowable curvature radius of the flexible conduits 8. When a pulling force is exerted between the first end 9 and the second end end 10 of the flexible pipes 8, the flexible pipes 8 are pressed against the guide surface 29 which then takes the tensile force. The portion of the flexible pipes 8 extending between the end 6 of the transfer line 4 and the guide element 28 is then tensioned so that the separation direction d extends tangentially to the convex surface of the Thus, the tensile force is exerted on the emergency disconnect connection device 19 in the separation direction d. In order to limit the bending stresses acting on the flexible pipe at the connection of the first end 9 of the flexible pipes 8 to the transfer lines 8, the convex guide surface 30 is directed towards the distal end 7 of the mast 1 when the 6 end of the transfer line is oriented towards the distal end 7 of the mast 1. On the contrary, as we shall see later in connection with other embodiments, it is necessary to orient the convexity of the surface 30 towards the proximal end of the mast 1, when the end 6 of the transfer line 4 is generally directed towards the proximal end of the mast 1. Moreover, it is also advantageous that the end 6 of the transfer line 4 is also oriented tangentially to the convex guide surface 30. Furthermore, as shown in FIG. 8, the distance x between the guide element 29 and the distal end 7 the mast 1 to which the saddle 14 is suspended is determined so that when the mast 1 is disposed in its raised extreme position, the flexible pipes 8 form a loop 31 whose radius of curvature is greater than or equal to the minimum radius of curvature allowable flexible lines 8. Figures 1 to 5 illustrate a succession of steps of maneuvering the transfer system during a fluid transfer operation between a supplier ship 3 and a customer ship 5. In a retracted position, illustrated on Figure 1, the mast 1 extends substantially horizontally. When the supplier ship 3 and the client ship 5 are moored to one another, the mast 1 is moved so that its distal end 7 comes to be positioned near the manifold 11 of the client ship 5, as shown on Figure 2. The lifting device of the seat 14 is then controlled so as to drop the seat 14 on the deck of the customer ship 5. The flexible pipes 8 are then connected to the manifolds 11 of the customer ship 5 to allow the transfer of liquefied natural gas between the supply vessel 3 and the customer vessel 5, as shown in FIG. 3. When the transfer of the liquefied natural gas is completed, the mast 1 is erected in a draining position, illustrated in FIG. in which the flexible pipes 8 have, from the mast 1 towards the deck of the client vessel 4, a downward slope so as to allow gravity flow of the liquefied natural gas contained in the flexible pipes 8 to the manifolds 11 of the customer vessel 5. The flexible lines 8 are then disconnected from the manifolds 11 of the customer vessel 5 and the seat 14 can be raised by means of the lifting device, as shown in FIG. 5, in order to lift the end 10 of the flexible ducts 8. The mat 1 is then returned to its retracted position, illustrated in FIG. 1. FIGS. 9 to 13 schematically represent arrangements of the guiding element 29 and the disconnecting connection device. emergency 19 according to several embodiments. In these figures, the rest position of the flexible pipe 8 is shown in solid lines while the position of the flexible pipe 8, when a tensile force is exerted, is shown in dashed lines. Fig. 9 is a schematic representation of the embodiment of Figs. 1-6. The embodiment of Fig. 10 differs from that of Fig. 9 in that the emergency disconnect connection device 19 is arranged at the level of Fig. 9. the first end 9 of the flexible pipe 8, that is to say at the junction between the transfer line 4 and the flexible pipe 8, to ensure axial operation. The emergency disconnect connection device 19 is therefore fixed with respect to the mast 1. Consequently, the guide member 29 is fixed on the mast 1 in a position such that the separation direction d of the connection device The emergency disconnect 19 extends substantially tangentially to the convex guiding surface 30. The embodiment of Fig. 11 differs from that of Fig. 9 in that the emergency disconnect connecting device 19 is disposed at the same time. a portion of the flexible pipe 8 extending between the guide member 29 and the second end 10 of the flexible pipe 8. In the embodiments of FIGS. 12 and 13, the convexity of the convex surface of The guide 30 is directed towards the proximal end of the mast 1 because the end 6 of the transfer line has a longitudinal component oriented towards the proximal end 7 of the mast 1. FIGS. 14 and 15 illustrate guiding members. according to two alternative embodiments. In the embodiment illustrated in FIG. 14, the guide member comprises, for each flexible pipe 8, a guide groove 32. Each of the grooves 32 is bordered by partitions 33 more or less advanced in order to provide lateral guidance for the Flexible ducts 8. In the embodiment illustrated in Figure 15, the guide member 29 has a flared bell portion portion having a top equipped with an opening 33 for passage of the flexible pipes. According to one embodiment, the convex guide surface 30 is covered with a non-stick coating in order to reduce the frictional forces between the convex guide surface 30 and the flexible conduits 8. The non-stick coating is, for example, polytetrafluoroethylene (PTFE). According to another embodiment, not shown, the guide surface 30 is equipped with a plurality of rollers mounted in rotation and thus making it possible to reduce the frictional forces exerted between the convex guide surface 30 and the flexible pipes 8. Furthermore, the transfer system is equipped with a braking device 34 for controlling the fall speed of flexible lines 8 during an emergency disconnection, illustrated in detail in FIGS. 16, 17 and 19. The device each flexible pipe 8 comprises a drum 35 and a cable 36 which is, on the one hand, wound around its respective drum 35 and, on the other hand, connected to the element 20 of the connecting device to the respective drum 35. emergency disconnection 20 which is linked to the flexible pipe 8 or the portion of the flexible pipe 8 may fall during an emergency disconnection. The drums 35 are each mounted on a shaft 37 by means of a device, freewheel or anti-return, unidirectional 38. Thus, a rotation of the drum 35 in a direction of unwinding of the cable drives the shaft in rotation according to a first direction of rotation whereas, on the contrary, the shaft can freely rotate in this first direction of rotation without rotating the drum in the unwinding direction of the cable. The cables 36 of each of the drums 35 can therefore be unrolled independently.
[0009] Furthermore, the shaft 37 is associated with a speed control unit for controlling the falling speed of the flexible pipe. The speed control unit comprises a volumetric pump 39 equipped with a rotor rotatably coupled to the shaft 37. The positive displacement pump 39 is associated with a closed loop hydraulic circuit 40 equipped with a flow regulator 41, such as a constant flow valve. Thus, insofar as, on the one hand, the positive displacement pump 39 provides a flow rate proportional to its speed of rotation and, on the other hand, the flow regulator makes it possible to control the flow rate of the pump, it is possible to control the speed of rotation of the shaft 37 and thus to limit the speed of fall of the flexible pipes 8. In one embodiment, the braking device 34 is arranged to allow the release of the cables 36 when they are completely unrolled. their drum 35. To do this, as illustrated in Figure 18, one end of the cable is fixed to a pin 42 provided with an eyelet 43 for the introduction and fixing of the cable 36. The drum 35 has a groove 44 arranged in the cylindrical surface of the drum 35, extending along a generatrix of the cylindrical surface of the drum 35. The groove 44 is arranged to receive the pin 42. Thus, the pin 42 can disengage the drum 35 only lo when the cable 36 is completely unrolled.
[0010] Although the invention has been described in connection with several particular embodiments, it is obvious that it is not limited thereto and that it comprises all the technical equivalents of the means described and their combinations if they are within the scope of the invention. The use of the verb "to include", "to understand" or "to include" and its conjugated forms does not exclude the presence of other elements or steps other than those set out in a claim. The use of the indefinite article "a" or "an" for an element or a step does not exclude, unless otherwise stated, the presence of a plurality of such elements or steps. In the claims, any reference sign in parentheses can not be interpreted as a limitation of the claim.
权利要求:
Claims (20)
[0001]
REVENDICATIONS1. A system for transferring a fluid between a vessel and an installation, the system comprising: - a mast (1) having a proximal end for pivotal mounting on a deck (2) of the ship (3) and a distal end (7); - a fluid transfer line (4) extending along the mast (1); a flexible pipe (8) having a first end (9) connected to the fluid transfer line (4) and a second end (10) intended to be connected to a manifold (11) of the installation during a a fluid transfer operation, the flexible pipe (8) being equipped with an emergency disconnection connection device (19) comprising two elements (20, 21) able to separate automatically in a separation direction d when a separation effort greater than a threshold is exercised; and - a guide element (29), carried by the mast (1), and having a convex surface (30) for guiding the flexible pipe (8) adapted to take up a tensile force of the flexible pipe (8) s exerting between the first and second ends (9, 10) of the flexible pipe (8) when the tensile force plates the flexible pipe (8) against the convex guide surface (30), the convex guide surface ( 30) being arranged with respect to the emergency disconnect connection device (19) so that, when a tensile force is exerted between the first and second ends (9, 10) of the flexible pipe ( 8) plates the flexible pipe (8) against the convex guide surface (30), the separation direction of the separable elements (20, 21) extends tangentially to said convex guide surface (30) so that effort is exerted on the emergency disconnect connection device (19) in the direction d separation.
[0002]
2. System according to claim 1, wherein the guide element (29) is carried by the mast (1) at a distance from the distal end (7) of the mast (1), the system comprising a saddle (14). ) suspended at the distal end (7) of the mat (1) and having a convex upper surface (30) for supporting the flexible pipe (8).
[0003]
3. System according to claim 2, wherein the saddle (14) is suspended at the distal end (7) of the mast (1) by means of a lifting device.
[0004]
4. System according to claim 2 or 3, wherein the distance between the guide member (29) and the distal end (7) of the mast (1) is such that, when the mast (1) is disposed in a raised position, the flexible pipe (8) forms a loop (31) between the guide element (29) and the saddle (14) whose radius of curvature is greater than or equal to a minimum allowable bending radius of the pipe flexible (8).
[0005]
5. System according to one of claims 1 to 4, wherein the guide member (29) has a radius of curvature greater than or equal to a minimum radius of curvature of the flexible pipe (8).
[0006]
6. System according to claim 1 to 5, wherein, in the connection zone between the flexible pipe (8) and the fluid transfer line (4), the fluid transfer line (4) is oriented, according to a end direction of the fluid transfer line (4) having a longitudinal component, along the axis of the mat (1), which is directed towards one of the distal or proximal ends of the mast (1) and in wherein the convexity of the convex guide surface (30) is directed toward said distal or proximal end of the mast to which the longitudinal component of the end direction of the fluid transfer line is directed.
[0007]
The system of claim 6, wherein the end direction of the fluid transfer line (4) is oriented tangentially to the convex guide surface (30).
[0008]
8. System according to one of claims 1 to 7, wherein the emergency disconnect connection device (19) is located at the first end (9) of the flexible pipe (8) to connect the flexible pipe ( 8) and the fluid transfer line (4).
[0009]
9. System according to one of claims 1 to 8, wherein the flexible pipe (8) comprises a first flexible portion extending between its first end (9) and the emergency disconnect connection device (19) and a second flexible portion extending between the emergency disconnect connecting device (19) and its second end (10).
[0010]
10. System according to one of claims 1 to 9, comprising a plurality of fluid transfer lines (4) extending along the mast (1) and a plurality of flexible pipes (8) each having a first end ( 9) connected to the fluid transfer line (4), a second end (10) to be connected to a manifold (11) of the installation and an emergency disconnect connection device (19) having two elements (20, 21) able to separate automatically in a separation direction d when a separation force greater than a threshold is exerted, the convex guide surface (30) being arranged with respect to the emergency disconnect connection devices (19) so that, when tensile forces between the first and second ends (9, 10) of the flexible pipes (8), press the flexible pipes (8) against the convex guide surface (30). ), directions d separating the separable elements (20, 21) extend tangentially to said convex guide surface (30) such that the forces are exerted on the emergency disconnect connection devices (19) in the direction d of seperation.
[0011]
11. System according to one of claims 1 to 10, wherein the convex guide surface (30) comprises, for each flexible pipe (8), a guide groove (32), each of the guide grooves (32) being bordered by partitions (33).
[0012]
12. System according to one of claims 1 to 10, wherein the guide member (29) has a flared bell portion portion having a top equipped with an opening (30) for passage of the flexible pipes (8). .
[0013]
13. System according to one of claims 1 to 12, wherein the guide surface (30) is covered by a non-stick coating.
[0014]
14. System according to one of claims 1 to 12, wherein the guide surface (30) is equipped with a plurality of rollers rotatably mounted.
[0015]
15. System according to one of claims 1 to 14, comprising a braking device (34) for controlling the fall speed of the flexible pipe (8) during an emergency disconnection, the braking device comprising: a drum (35); a cable (36) which is, on the one hand, wound around the drum (35) and, on the other hand, fixed to one of the separable elements (20, 21) of the emergency disconnect connection device ( 19); a rotatable shaft (37) associated with the drum (35) such that rotation of the drum in a unwinding direction of the cable (36) drives the rotating shaft; - A positive displacement pump (39) equipped with a rotor rotatably coupled to the shaft (37); and - a closed loop hydraulic circuit (40), associated with the positive displacement pump (39), equipped with a flow regulator (41).
[0016]
The system of claim 15, including a plurality of fluid transfer lines (4) extending along the mast (1) and a plurality of flexible lines (8) each having a first end (9) connected to the fluid transfer line (4), a second end (10) to be connected to a manifold (11) of the installation and an emergency disconnect connection device (19) having two elements (20, 21). ) able to separate automatically; the braking device (34) comprising for each flexible pipe (8), a drum (35) and a cable (36) wound around said drum (35) and secured to one of the separable elements (20) of the connecting device to emergency disconnection (19) of said flexible conduit (8); each drum (35) being associated with the shaft (37) by means of a unidirectional freewheel or nonreturn device (38) so that a rotation of the drum (35) in a direction of unwinding of the cable (36) drives the shaft (37) in rotation in a first direction of rotation and that the shaft (37) can freely rotate in the first direction of rotation without rotating the drum (37) in the direction unwinding of the cable.
[0017]
The system of claim 15 or 16, wherein one end of the cable is attached to a pin (42), the drum (35) having a groove (44) for accommodating said pin (42).
[0018]
18. Ship equipped with a transfer system according to any one of claims 1 to 17.
[0019]
19. A method of transferring a fluid between a ship and an installation by means of a transfer system according to any one of claims 1 to 17, wherein, during the transfer operation, the mast (1 ) is positioned in such a position that, when a tensile force is exerted between the first end (9) and the second end (10) of the flexible pipe (8), said flexible pipe (8) is pressed against the surface convex guide (30).
[0020]
20. A method of transferring a fluid according to claim 19, comprising a drainage operation of the flexible pipe (8) in which the mast (1) is moved to a position in which the flexible pipe has the mast (1). to the manifold (11) of the installation (5) a downward slope so as to allow gravity flow of the fluid contained in the flexible pipe.
类似技术:
公开号 | 公开日 | 专利标题
FR3018766A1|2015-09-25|SYSTEM FOR THE TRANSFER OF FLUID BETWEEN VESSEL AND A FACILITY, SUCH AS A CLIENT SHIP
EP1710206B1|2011-11-09|System for transferring a fluid product between a carrying vessel and a shore installation
EP1322544B1|2004-12-22|Assembly with articulated arm for loading and unloading products, in particular fluid products
FR2854156A1|2004-10-29|Products loading and unloading assembly, has guiding unit to co-operate with output cable for guiding connection system along trajectory by cable until bringing connection system in connection position to coupling unit
EP2040975B1|2013-09-11|Device for connecting the end of a flexible liquid supply pipe to a fixed tubing such as the manifold on a ship
EP2374711B1|2013-02-13|Fluid transfer line with serrating modules
FR2973771A1|2012-10-12|SYSTEM AND METHOD FOR OFFSHORE FLUID TRANSFER
WO2012056123A1|2012-05-03|Connection device with releasable clamping modules
FR2941434A1|2010-07-30|SYSTEM FOR TRANSFERRING A FLUID PRODUCT AND ITS IMPLEMENTATION
FR2914903A1|2008-10-17|DEVICE FOR TRANSFERRING A FLUID TO A VESSEL, SHIP, TRANSFER ASSEMBLY, AND ASSOCIATED METHOD
EP3063059B1|2017-06-21|System for fluid transfer between a ship and a facility, such as a client ship
WO1991015694A1|1991-10-17|Flexible tubular handling conduit and process and device using said conduit
EP2424777A2|2012-03-07|Arrangement for transferring a fluid to a ship and system for transferring fluid between two ships, one of which is provided with the arrangement of the invention
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EP2239190A1|2010-10-13|System for transferring a fluid between two paired vessels
WO2002092422A1|2002-11-21|System for transferring a fluid product, in particular a liquefied natural gas, between a transport vehicle such as a ship and an installation receiving or supplying said product
EP2625093B1|2015-08-05|Device for controlling the valves of a connector/disconnector
CA1087648A|1980-10-14|Flexible hoses plugging or coupling device
FR3075755A1|2019-06-28|CRYOGENIC PRODUCT TRANSFER SYSTEM BETWEEN TWO SHIPS SIDED SIDE
WO2020012114A1|2020-01-16|Liquefied gas transfer system
FR2666136A1|1992-02-28|Safety device for fluid pipe, and method for halting a flow of fluid
同族专利:
公开号 | 公开日
JP2017510495A|2017-04-13|
WO2015145020A1|2015-10-01|
CN106458300A|2017-02-22|
AU2015238099A1|2016-10-06|
RU2016140525A|2018-04-25|
US20170096195A1|2017-04-06|
EP3122622A1|2017-02-01|
EP3122622B1|2018-05-09|
RU2016140525A3|2018-04-25|
MY178828A|2020-10-20|
RU2657146C2|2018-06-08|
CN106458300B|2018-09-28|
US10086914B2|2018-10-02|
FR3018766B1|2016-04-01|
JP6461188B2|2019-01-30|
SG11201607823PA|2016-11-29|
KR20160133493A|2016-11-22|
AU2015238099B2|2018-06-28|
PH12016501869A1|2016-12-19|
KR102301507B1|2021-09-14|
ES2674528T3|2018-07-02|
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法律状态:
2015-03-31| PLFP| Fee payment|Year of fee payment: 2 |
2016-03-31| PLFP| Fee payment|Year of fee payment: 3 |
2017-03-31| PLFP| Fee payment|Year of fee payment: 4 |
2018-03-30| PLFP| Fee payment|Year of fee payment: 5 |
2019-03-29| PLFP| Fee payment|Year of fee payment: 6 |
2020-12-18| ST| Notification of lapse|Effective date: 20201110 |
优先权:
申请号 | 申请日 | 专利标题
FR1452471A|FR3018766B1|2014-03-24|2014-03-24|SYSTEM FOR THE TRANSFER OF FLUID BETWEEN VESSEL AND A FACILITY, SUCH AS A CLIENT SHIP|FR1452471A| FR3018766B1|2014-03-24|2014-03-24|SYSTEM FOR THE TRANSFER OF FLUID BETWEEN VESSEL AND A FACILITY, SUCH AS A CLIENT SHIP|
JP2016558215A| JP6461188B2|2014-03-24|2015-03-16|A system for moving fluid between a ship, such as a client ship, and a facility|
US15/126,498| US10086914B2|2014-03-24|2015-03-16|System for transferring fluid between a ship and a facility, such as a client ship|
RU2016140525A| RU2657146C2|2014-03-24|2015-03-16|Liquid transfer system between a vessel and a floating structure, for example, client's vessel|
KR1020167028132A| KR102301507B1|2014-03-24|2015-03-16|System for transferring fluid between a ship and a facility, such as a client ship|
CN201580015479.9A| CN106458300B|2014-03-24|2015-03-16|For in ship and equipment, such as client's ship, between transmit the system of fluid|
SG11201607823PA| SG11201607823PA|2014-03-24|2015-03-16|System for transferring fluid between a ship and a facility, such as a client ship|
PCT/FR2015/050628| WO2015145020A1|2014-03-24|2015-03-16|System for transferring fluid between a ship and a facility, such as a client ship|
AU2015238099A| AU2015238099B2|2014-03-24|2015-03-16|System for transferring fluid between a ship and a facility, such as a client ship|
EP15715788.4A| EP3122622B1|2014-03-24|2015-03-16|System for transferring fluid between a ship and a facility, such as a client ship|
ES15715788.4T| ES2674528T3|2014-03-24|2015-03-16|Fluid transfer system between a ship and an installation, such as a client ship|
MYPI2016703408A| MY178828A|2014-03-24|2015-03-16|System for transferring fluid between a ship and a facility, such as a client ship|
PH12016501869A| PH12016501869A1|2014-03-24|2016-09-22|System for transferring fluid between a ship and a facility, such as a client ship|
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