摘要:
An emergency disconnection system for a fluid loading arm includes two valves, a collar which when closed secures the valves together and which when opened allows the valves to disconnect from each other, and an actuator which includes a single rod which is movable axially over a length of travel. A first jack moves the rod over a first portion of its travel to close the two valves and a second jack moves the rod over a remaining portion of its travel to open the collar. The first and second jacks are independently controllable and positioned substantially coaxially relative to each other.
摘要:
A coupling for securing a first element to a second element includes an actuation bolt, a clamping jaw mounted on the first element which comprises a bore having a threaded part which defines a nut that threadedly engages the actuation bolt, and a torque limitation device positioned between the actuation bolt and the bore for transmitting the rotational movement of the actuation bolt directly to the clamping jaw to thereby rotate the clamping jaw about the axis. In operation, when an external force acting on the clamping jaw is greater that the force generated against the bore by the torque limitation device, rotation of the actuation bolt will result in translation of the clamping jaw, and when the external force acting on the clamping jaw is less than the force generated against the bore by the torque limitation device, rotation of the actuation bolt will rotate the clamping jaw about the axis.
摘要:
Assembly for loading and unloading products, comprising a balanced loading and unloading arm installed at a first location and having a compass-style duct system mounted by one of its ends on a base and provided at the other of its ends with a connection system suitable for connecting the compass-style duct system to a coupling means installed at the second location, this assembly comprising, in addition, a cable joined on the one hand to means integral with the base and suitable for subjecting this cable to a constant tension and suitable for being joined, on the other hand, to the second location, the assembly also comprising guiding means capable of co-operating with the cable so as to guide the connection system along a trajectory materialized by the said cable until the connection system is brought into a position of connection to the coupling means.
摘要:
A control device (1) for the movement and positioning of a coupling (26) for a marine loading system (2), comprising at least one fluid transfer line having a line end fixed to a base (21), and a moveable line end provided with a coupling (26) adapted for connection to a target duct (35), the device comprising at least three actuators (27, 28, 29) each for controlling the movement of the system in a degree of freedom, and a command interface (60) and at least one member of the group coupling/target duct or a member that is fixed relative to one at least of the members of the group coupling/target duct comprises at least one means for providing information on positioning of the coupling (33, 34), and the device furthermore comprises calculating means (41) adapted to: calculate the relative positioning of the coupling directly relative to the target duct according to the information provided by the positioning information means of the coupling, calculate control instructions to give to each of the actuators such that their combined movements result in a movement of the coupling aimed at bringing the coupling closer to the target duct, apply said control instructions to bring the coupling closer to the target duct, reiterate the three preceding steps until the coupling is presented in front of the target duct in a position for connection.
摘要:
The invention concerns a control device for the movement and positioning of a coupling for a marine loading system (2), said marine loading system comprising at least one fluid transfer line having a line end fixed to a base, and a moveable line end provided with a coupling adapted for connection to a target duct, the system further having a plurality of mechanical connections such that the coupling has at least three degrees of freedom relative to the base, the device comprising at least three proportional control actuators (27, 28, 29) each for proportionally controlling the movement of the system in a degree of freedom, a position sensor (30, 31, 32) of the system tracking each degree of freedom, an operator input interface (60) for inputting commands to move the coupling, and a calculator (41) for calculating the instantaneous position of the coupling from the information provided by the sensors, and for calculating, from movement command inputs of the input interface, simultaneous control instructions to give to each of the actuators such that their combined movements result in a movement of the coupling corresponding to the movement command provided by the operator at the input interface.
摘要:
A transfer arm for a fluid product includes a transfer pipe having sections linked by fluid-tight articulations and an end provided with a device for connecting the pipe to a target duct. A support structure for the pipe has an inner branch mounted on a base and an outer branch suspended from the inner branch by an articulation assembly. The articulation assembly enables rotation of the outer branch around vertical and horizontal axes and is positioned between first and second ends of the outer branch. The first end is provided with a counterweight for balancing parts of the outer branch that are situated on opposite sides of the horizontal rotational axis. The arm also has a disengageable device for actuating the rotations of the outer branch around the horizontal and vertical axes and a flexible link which suspends the pipe, upstream of the device, from the second end of the outer branch.
摘要:
The invention provides a balanced arm (201) for transferring a fluid product, having a transfer compass comprising an inner transfer member (208) and an outer transfer member (221), articulated together, and a counterweight system (203) for balancing the transfer compass, characterized in that the compass is installed on a turntable (215) rotatable about a vertical axis, to rotationally drive the transfer compass about that axis, and the balancing system comprises at least one counterweight (207; 207′) mounted so as to be able to turn about an axis (206) of horizontal general orientation, on a support (251) fixed to the turntable and functionally linked to the inner transfer member to provide the balancing of the transfer compass.
摘要:
Assembly for loading and unloading products, comprising a balanced loading and unloading arm installed at a first location and having a compass-style duct system mounted by one of its ends on a base and provided at the other of its ends with a connection system suitable for connecting the compass-style duct system to a coupling means installed at the second location, this assembly comprising, in addition, a cable joined on the one hand to means integral with the base and suitable for subjecting this cable to a constant tension and suitable for being joined, on the other hand, to the second location, the assembly also comprising guiding means capable of co-operating with the cable so as to guide the connection system along a trajectory materialized by the said cable until the connection system is brought into a position of connection to the coupling means.
摘要:
A device for providing information on the positioning of a moveable coupling which is located on a movable end of a fluid transfer line of a marine loading system and is adapted for connection to a target duct, the other end of the fluid transfer line being fixed to a base. The device comprises a first apparatus for providing information on the positioning of the coupling. The first apparatus is positioned on the coupling or on a member Immediately neighboring the coupling and includes a first GPS device which provides information on the absolute positioning of the coupling in space. The device comprises a second apparatus adapted to cooperate directly with the first apparatus and provides information on the positioning of the base. The second apparatus is disposed on the base or on a member immediately neighboring the base and provides, on the basis of the information on the positioning of the base and the information on the positioning of the coupling, information on the relative positioning of the coupling directly relative to the base. Alternatively, the first means is adapted to provide information on the absolute positioning of the coupling in space, the base has a fixed position in space, and the device comprises a calculator for calculating, on the basis of the information on the absolute positioning of the coupling and data on positioning of the base, information on the relative positioning of the coupling directly relative to the base.
摘要:
A coupler which is adapted to be connected to a complementary device for the transfer of a fluid between the coupler to the complementary device comprises a body through which the fluid is allowed to flow, at least one seal for providing a fluid-tight seal between the coupler and the complementary device, and a protecting device for the seal. The protecting device is movable between a first position before connection in which the protecting device projects beyond the seal in the direction of connection, and a second position after connection in which the protecting device no longer projects beyond the seal. The coupler also includes a damper for urging the protecting device towards its first position.