The present invention provides an umbilical cable, comprising a cable core, an inner sheath disposed outside the cable core, an armor layer disposed outside the inner sheath, and an outer sheath disposed outside the armor layer. The armor layer comprises several armor wires. The outer sheath is woven from a material that is seawater corrosion-resistant and wear-resistant. The present invention has features of low specific density and high strength, can meet the requirements of the ultra-deep water generation operation, and will not cause damage to the armor layer during production of the umbilical cable.
The present invention provides an umbilical cable, comprising a core, an inner protective layer disposed outside the core, and an armor layer disposed outside the inner protective layer. The armor layer comprises a plurality of armor wires, and each armor wire comprises a base made of a fiber-reinforced composite material. The present invention has the characteristics of low specific gravity and high intensity, and can meet the requirements on deeper underwater production work compared with an existing metal wire armor umbilical cable.
A submarine optical cable, comprising: a central reinforcing member (10), a conductor (12), a frame (14), an optical unit (16), a water blocking belt (18), a metal layer (20), a sheath layer (22), an armor layer (24), and an outer layer (26) that are disposed in sequence from the inside to the outside. The central reinforcing member (10) is located at a central position. The conductor (12) covers the central reinforcement member (10). The plastic frame (14) is pressed against the exterior of the conductor (12). The frame (14) is filled with the optical unit (16). The water blocking belt (18) is wrapped around the frame (14). The metal layer (20) is coated on the water blocking belt (18). The sheath layer (22) is disposed outside the metal layer (20). The armor layer (24) is disposed outside the sheath layer (22). The outer layer (26) is disposed outside the armor layer (24). The submarine optical cable has a large capacity, increasing the number of core fibers of a single submarine optical cable from hundreds of core fibers to thousands, and has the central reinforcing member (10) of the frame (14) covered with the conductor (12) and is therefore applicable to power transmission.
A submarine optical cable (100), the submarine optical cable (100) comprising an optical fiber unit (10), and further comprising an armor layer (20), an inner copper conductor (30), an insulation layer (40), an outer copper conductor (50) and an outer protection layer (60) which are wrapped on the optical fiber unit (10) sequentially from the inside to the outside, the optical fiber unit (10) comprises an optical fiber (11) and a stainless steel tube (12), and the optical fiber (11) is located in the stainless steel tube (12). The submarine optical cable has the design of the inner and outer copper conductors (30, 50) and the optical fiber unit (10), such that one submarine optical cable (100) can realize the loop transmission of electric energy and information, thereby solving the problem that two submarine optical cables are required to be placed, greatly reducing the difficulty of system construction and maintenance of a branch unit, saving the cost.
A cable armoring method, comprising the following steps: step one: according to an installation condition, pre-setting a required current-carrying capacity value to be I, setting a cross-sectional area S1 of a conductor, and providing N first metal wires (21) and M second metal wires (22), which are used for armoring; step two: calculating that a current-carrying capacity is I1 according to S1, the N first metal wires (21) and the M second metal wires (22); step three: comparing I1 with I, and when I1(S, N, M) ≥ I and I1(S, N-1, M+1) < I, carrying out the next step; and step four: arranging, in a traction manner, the N first metal wires (21) and the M second metal wires (22) outside the circumference of a cable core (10) including the conductor to carry out stranding and armoring, so as to form an armor layer (20) of the cable (100). By means of optimizing the ratio of the cross-sectional area of a conductor to the number of metal wires, the current-carrying capacity thereof reaches a required value, the mechanical strength and costs are optimized, and the amount of materials used is rational. The same cable (100) can also meet the requirements for the current-carrying capacity, mechanical strength and costs thereof under multi-segment installation conditions.
A single-core submarine cable (100), comprising a core (10), an inner sheath layer (20) disposed outside the core (10), and an armor layer (30) disposed outside the inner sheath layer (20), wherein the armor layer (30) comprises first metal wires (31) and second metal wires (32), the total number of which is constant, and the numerical value of the number of first metal wires (31) and second metal wires (32) is different in at least one first segment and one second segment. The current-carrying capacity of the single-core submarine cable (100) with a controllable and adjustable current-carrying capacity can meet the requirement of a routing bottleneck section for a rated current thereof. The same single-core submarine cable can also meet the requirements for the rated current thereof under multi-segment routing conditions in which same is arranged in different areas and environments, optimizes the mechanical strength and cost thereof, has strong practicality and operability, and is convenient for construction, and the amount of materials used is rational.
An anchoring device, comprising a supporting component (10) and a fixing component (20). The fixing component is connected to one side of the supporting component; the supporting component and the fixing component are communicated to allow a cable (40) having an armoring layer (44) and a filling unit (42) to pass through. The fixing component is used for fixing the armoring layer of the cable. The anchoring device further comprises a wire separating assembly (30) that is connected to the side of the fixing component distal from the supporting component. The wire separating assembly comprises a fixing ring (31), an end cap (33), and a connecting rod (32). The fixing ring is connected to the end cap by means of the connecting rod; the fixing ring is connected to the fixing component; the end cap is located at the side of the fixing ring distal from the fixing component; and the end cap is used for fixing the filling unit. The armoring layer and the filling unit of the cable are simultaneously fixed by means of the anchoring device, so that the effect of the anchoring device bearing the cable is improved; the space occupied by a platform is saved; and the reliability of the cable under a marine environment is increased.
H02G 9/12 - Installations de lignes ou de câbles électriques dans ou sur la terre ou sur l'eau supportés sur ou par des structures flottantes, p. ex. dans l'eau
8.
PHOTOELECTRIC COMPOSITE CABLE AND CABLE UNIT THEREOF
Provided are a photoelectric composite cable and a cable unit thereof. The cable unit comprises a conductor layer (10), an insulating layer (30) arranged outside the conductor layer, a semi-conductive water-blocking tape layer (50) arranged outside the insulating layer, a copper sheath shielding layer (60) arranged outside the semi-conductive water-blocking tape layer, and a sheath layer (70) arranged outside the copper sheath shielding layer. The photoelectric composite cable has a higher mechanical strength, a better corrosion resistance, a large short-circuit current-carrying capacity and a better water-blocking performance.
H01B 7/17 - Protection contre les dommages provoqués par des facteurs extérieurs, p. ex. gaines ou armatures
H01B 7/20 - Tubes métalliques, p. ex. gaines de plomb
H01B 7/28 - Protection contre les dommages provoqués par des facteurs extérieurs, p. ex. gaines ou armatures par l'humidité, la corrosion, les attaques chimiques ou les conditions atmosphériques
H01B 7/282 - Protection contre les dommages provoqués par des facteurs extérieurs, p. ex. gaines ou armatures par l'humidité, la corrosion, les attaques chimiques ou les conditions atmosphériques empêchant la pénétration de fluides dans les conducteurs ou les câbles
Disclosed are a float (190) and a method for shaping the float (190). The float (190) comprises at least one support assembly, the support assembly consisting of a protection layer, a float part and a reinforcing member, the reinforcing member covering the float part, and the float part being covered in the protection layer. The shaping method comprises the following steps: providing at least one reinforcing member, performing foaming on the reinforcing member, and coating a polyurea material on an outer surface of the foaming material. The float material has a composite-type structure, and the float has the advantages of having a simple structure, being convenient to install and maintain, having high strength, having high buoyancy and having high stability.
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