摘要:
The invention relates to a hydrocarbon transfer system comprising an offshore structure, a support member extending upward from deck level of the structure, a hydrocarbon transfer duct comprising a transfer duct section extending from a free end of the support member, which free end is located outboard of the structure, to a hydrocarbon storage and/or processing unit on the structure and a connecting duct section in fluid communication with the transfer duct section and connected with a first end to the free end of the support member, a second end of the connecting duct section having a connector and being attachable to a hydrocarbon vessel, characterised in that, the support member comprises a displacement device, connected to the first end of the connecting duct section, which displacement device is movable between a connect and a disconnect position while the support member remains substantially stationary, a vertical distance from deck level of the displacement device being larger for the disconnect position than for the connect position, a horizontal distance from the side of the structure being larger for the connect position than for the disconnect position, wherein in the disconnect position, the connecting duct section in its vertical orientation is situated with its connector at a predetermined distance above sea level.
摘要:
The invention relates to a mooring system comprising a first vessel (2) for containing hydrocarbons having at its bow and/or stem a transverse arm (7) and a fluid transfer means (18) comprising a duct connected to a tank (19) on the first vessel (2) and a coupling end for connecting to a second vessel (2), the second vessel being moored alongside the first vessel and being attached via at least one cable (11), extending from its bow in the length direction of the vessel, to a mooring end of the arm (7), which mooring end of the arm is substantially situated at or near a longitudinal centreline of the second vessel, wherein the arm, during use, is in a fixed position, a pulling force element being attached to the cable (11) for applying a pulling force on the cable (11) upon relative movement of the second vessel (3) with respect to the arm (7), the force element allowing a predetermined maximum displacement of the second vessel (3). The fluid transfer means comprises a frame (60) extending upwardly from a side of the first vessel, hingingly attached around a first hinge axis (61) that extends in the length direction of the vessel, a transverse arm (65) being hingingly connected to an upper end of the frame (60) around a second axis (66) that extends in the length direction of the vessel, a counterweight (67) being placed on one end of the transverse arm (65) and a vertical fluid duct (73) being supported from the transverse arm (65), the vertical duct having at its coupling end a connecting member for attaching to the second vessel (3) „ the vertical duct (73) being displaceable in the length direction of the vessels by a distance corresponding to the predetermined maximum displacement.
摘要:
Vessel (14) comprising a hull (3) having near a bottom (41) a cavity (42) for receiving a mooring buoy (11), a lifting device (20,45) being placed on the hull comprising a cable (17) that extends through the cavity (42) to a weight (16) that is situated below the bottom (41) of the vessel, the mooring buoy being attached to the cable (17), the mooring buoy carrying mooring lines (10) that are connected to a sea bed (19) and being receivable in the cavity (42) for coupling with the turret (1), the mooring buoy comprising a central shaft (44) through which the cable (17) passes, the buoy being movable relative to the cable (17) in a length direction of the cable, wherein the weight (16) is located on the cable at or below the buoy, a stopper (21) being provided on the cable for engaging with the buoy and for blocking relative movement of the buoy and the cable, the stopper being fixed to the cable near an upper or a lower end of the buoy.
摘要:
Cryogenic swivel (1) comprising inner and outer concentric annular walls defining a toroidal chamber (7) between said walls, a fluid duct connected to a first opening (10) in the outer wall and a second fluid duct connected to an opening (9) in the inner wall, wherein a number of conducting elements (14, 15) are situated inside the toroidal chamber (7), connecting a lower and an upper part of the chamber (7).
摘要:
The invention relates to a hydrocarbon transfer system comprising an offshore structure, a support member extending upward from deck level of the structure, a hydrocarbon transfer duct comprising a transfer duct section extending from a free end of the support member, which free end is located outboard of the structure, to a hydrocarbon storage and/or processing unit on the structure and a connecting duct section in fluid communication with the transfer duct section and connected with a first end to the free end of the support member, a second end of the connecting duct section having a connector and being attachable to a hydrocarbon vessel, characterised in that, the support member comprises a displacement device, connected to the first end of the connecting duct section, which displacement device is movable between a connect and a disconnect position while the support member remains substantially stationary, a vertical distance from deck level of the displacement device being larger for the disconnect position than for the connect position, a horizontal distance from the side of the structure being larger for the connect position than for the disconnect position, wherein in the disconnect position, the connecting duct section in its vertical orientation is situated with its connector at a predetermined distance above sea level.
摘要:
Connector (12) for releasably attaching two hydrocarbon ducts, the connector comprising first and second connector members (7,8), each connector member (7,8) having a housing (18,19) with a fluid passage (40,41), a valve (42, 43) rotatably seated in the passage for closing off the fluid passage, drive members (21,22) attached to a respective valve (42,43) situated at an outer surface of the housing for rotation of the valves between an open state and a closed state, each drive member (21,22) comprising a displacement device (50,51) movable in an axial direction (A) of the housing (18,19) and a first and second force element (53,54, 55) coupled to a respective displacement device (50,51), wherein in the coupled state of the connector members (7,8), the displacement device (51) of the second drive member (22) engages with the displacement device (50) of the first drive member (21) to place the first and second drive members (21,22) in an axial opening position in which the valves (42,43) are opened and the force elements (53,54) are in a compressed state, and wherein upon axial retraction of the second displacement device (51) away from the first connector member (8), the first and second displacement devices (50,51) are movable by expansion of the force elements (53,54) to an axial closure position in which the valves are closed.
摘要:
This invention relates to a cryogenic transfer hose for hydrocarbons comprising an inner hose, an outer hose arranged around the inner hose in a concentric manner and a spacer member bridging an annular gap between the inner and outer hoses, a fibrous insulation material forming a three dimensional matrix of fibres being comprised in the annular gap, characterised in that the outer hose comprises an elastomeric and/or a plastic material, the fibrous material being contiguous overall best a part of the length of the hoses with the inner and outer hose and forming a spacer member.
摘要:
An off-shore structure is installed in a body of water. The body of water extends above a floor, such as a seabed, and has a water surface. A buoyant pontoon and a top structure are provided separately from each other. The top structure has a deck, a plurality of legs that are connected to the deck, and a jacking system for displacing the legs relative to the deck. The pontoon is submerged below the water surface. The submerged pontoon is connected to the floor with tendons. The top structure is aligned above the submerged pontoon connected to the floor. Then, the legs are jacked-down relative to the deck until the legs abut against the submerged pontoon connected to the floor. Subsequently, the jacked-down legs are attached to the submerged pontoon and the deck is jacked-up relative to the pontoon until the deck is standing above the water surface. A number of risers are installed for providing a fluid communication between the floor and the deck after jacking up the deck above the water surface.
摘要:
The invention relates to a flexible cryogenic transfer hose (7) for connecting two cryogenic facilities, the hose in use extending in a marine environment and having a length of at least 20 m, preferably at least 100 m. The hose comprises: an inner hose (10) with at least two segments (12,13), the inner hose segments being interconnected via at least two inner connecting members (16,17; 30a,30b;72,73) extending in a transverse direction, the inner hose being flexible and comprising a flexible reinforced wall having an internal diameter of at least 10 cm, - an outer hose (11) surrounding the inner hose and comprising a watertight elastomeric or composite material, the outer hose comprising at least two segments (20,21) which are mutually connected via two outer connecting members (24,25), the outer hose having a wall thickness of at least 2 cm, a bend radius of at least 2 m, and an internal diameter of at least 20 cm, - the inner hose being kept at a distance from the outer hose via a number of spacer elements (28,29) bridging a distance hi between the outer wall of the inner hose and an inner wall of the outer hose, which distance is between 0.1 and 0.8 times the internal diameter d10 of the inner hose (10), wherein a longitudinal position of a pair of inner connecting members (16,17; 30a,30b;72,73) is situated at or near a longitudinal position of a pair of outer connecting members (24,25). The inner connecting members (16,17; 30a,30b;72,73) bridge the distance hi between the inner and outer hose walls and comprise a flange section (16,17,72,73) of the inner hose wall, two transverse abutment surfaces (34,35) on the outer hose wall, the flange sections (16,17,72,73) being releasably engaged between the abutment surfaces (34,35) for preventing relative axial movement between the inner and outer segments (12,13; 20,21) at or near the longitudinal position of the pair of outer and inner connecting members, wherein the flange sections (72,73) are releasable from the inner hose wall and/or wherein the abutment surfaces (34,35) are releasable from the outer hose wall such that upon removal of the flange sections (72,73) and/or the abutment surfaces () from the gap between the inner hose (10) and outer hose (11) all wall parts of the inner hose (10) are at a distance from the wall of the outer hose (11).