13results about "Rigid-tube cables" patented technology

The invention relates to the technical field of submarine cables, in particular to an umbilical cable and an umbilical cable punching method. The umbilical cable comprises an inner sheath, an inner layer function unit group, an outer sheath, an outer layer function unit group and an armor layer. The inner layer function unit group is arranged in the inner sheath, the outer layer function unit group is arranged between the inner sheath and the outer sheath, the armor layer comprises an armor sheath and a metal armor, and the metal armor is arranged between the armor sheath and the outer sheath; the outer sheath is provided with a plurality of first water inlet holes at intervals along the length direction, and the armored sheath is provided with a plurality of second water inlet holes at intervals along the length direction. According to the umbilical cable provided by the invention, the plurality of first water inlet holes are formed in the outer sheath at intervals, and the plurality of second water inlet holes are formed in the armored sheath along the length direction at intervals, so that seawater can enter a space in which the outer-layer functional unit group is located through the second water inlet holes and the first water inlet holes in sequence; friction torque between the outer layer function unit group and the outer sheath can be reduced, and birdcage accidents caused by torque accumulation can be avoided.

The invention relates to an anti-icing steel cable, an anti-icing steel cable power supply control device and a bridge. The anti-icing steel cable sequentially comprises a steel cable base, insulating primer, an electric heating layer and a low-ice adhesion outer layer from inside to outside, and the electric heating layer is composed of a conductive heating base body, a positive electrode and a negative electrode, the positive electrode and the negative electrode extend to the two ends of the anti-icing steel cable in the length direction of the anti-icing steel cable. The conductive heating matrix is composed of a flexible resin matrix and a conductive heating material dispersed in the flexible resin matrix, and the conductive heating material forms a conductive heating network in the flexible resin matrix. When the anti-icing steel cable is not frozen, the low-ice adhesion outer layer of the anti-icing steel cable can reduce accumulation of water on the surface of the anti-icing steel cable, prevent or reduce icing and reduce the adhesion strength of ice on the surface of the anti-icing steel cable; and after icing, the power supply is started to supply power to the anti-icing steel cable, the electric heating layer is heated to remove a small amount of ice adhered to the outer layer, the required energy consumption is low, and the anti-icing and deicing cost is low.

The invention relates to the technical field of submarine cables, and provides an umbilical cable and a punching method thereof. The umbilical cable comprises an inner sheath, an inner layer function unit group, an outer sheath, an outer layer function unit group and an armor layer. An inner layer function unit of the umbilical cable is arranged in an inner sheath, an outer layer function unit of the umbilical cable is arranged between the inner sheath and an outer sheath, an armor layer comprises an armor sheath and a metal armor, and the metal armor is arranged between the armor sheath and the outer sheath; the inner layer function unit group comprises a plurality of first steel pipe units which are uniformly distributed in the inner sheath along the circumferential direction, and second steel pipe units which are filled between the adjacent first steel pipe units. According to the umbilical cable provided by the invention, the first steel pipe unit and the second steel pipe unit can provide a plurality of gas or liquid transmission channels, and a stable supporting structure is formed in the inner layer of the umbilical cable.

A conductor rod (106) having several cylinder conductors (202, 206, 210, 214) concentrically placed within a barrel (109) to transfer power from a power source to a work machine (100) and the work machine (100) that uses the conductor rod (106) is disclosed. In some cases, the conductor rod (106) has at least a first cylinder conductor (302) and a second cylinder conductor (304) that are concentrically aligned along a longitudinal axis (AB) of the conductor rod (106). The first cylinder conductor (302) and the second cylinder conductor (304) are affixed to a head-end interface (120) and a connector assembly (114) at either end of the cylinder conductors (302, 304).

A rigid submarine power cable joint including: an outer casing having a first axial end face and a second axial end face at an opposite axial end of the outer casing relative to the first axial end face, wherein the first axial end face includes a single opening configured to receive a multi-core dynamic submarine power cable, and wherein the second axial end face includes two openings, each configured to receive a respective single core submarine power cable.

The invention discloses a supply submarine cable for a floating type marine ranch and the floating type marine ranch, and belongs to the technical field of submarine cables. The floating type supply submarine cable for the marine ranch comprises a cable core, a first inner sheath layer wrapping the outer side of the cable core, a first steel wire armor layer arranged on the outer side of the first inner sheath layer, and a first outer sheath layer wrapping the outer side of the first steel wire armor layer. The cable core comprises a supply pipeline which is arranged in the center and is used for conveying articles, and power line cores, signal control line cores and optical fiber communication line cores which are arranged around the peripheral surface of the supply pipeline in an annular array manner.

The present invention relates to a dimensionally stable electrical cable.An embodiment of the electrical cable comprises: at least one electrical conduction element (10) extending in a longitudinal direction of the electrical cable (11); at least one dimensionally stable element (20) arranged in the electrical cable (1) and extending at least along a section of the at least one electrical conduction element (10) in the longitudinal direction of the electrical cable (1), wherein the at least one dimensionally stable element is arranged in the electrical cable (1) in such a way that it can be severed and / or removed at least in sections, wherein a dimensionally stable element and / or flexural rigidity of the at least one dimensionally stable element (20) is greater than a dimensionally stable element and / or flexural rigidity of the at least one electrical conduction element (10); and an outer sheath (30) circumferentially surrounding the at least one electrical conduction element (10) and the at least one dimensionally stable element (20).

The present invention provides a high-voltage current-carrying tube and a high-voltage bushing having the same. Among them, the high-voltage current-carrying tube includes a tube body; a first flow channel and a second flow channel, which are arranged in the tube body and are adapted to allow a cooling medium to flow, and both the first flow channel and the second flow channel extend along the radial direction of the tube body; a first communication cavity and a second communication cavity, which are arranged in the tube body, the first end of the first flow channel and the first end of the second flow channel are connected through the first communication cavity, and the second end of the first flow channel and the second end of the second flow channel are connected through the second communication cavity; a cooling structure, which is arranged on the tube body and is located at the first communication cavity; a one-way flow structure, which is arranged in the second flow channel. The technical solution of the present invention solves the defect that the heat generated by the current-carrying tube in the prior art is difficult to discharge after being energized.

The present invention relates to the technical field of submarine cables, and in particular to an umbilical cable and a punching method for an umbilical cable. The umbilical cable comprises: an inner sheath, an inner-layer functional unit group, an outer sheath, an outer-layer functional unit group, and an armor layer. The inner-layer functional unit group is arranged in the inner sheath, and the outer-layer functional unit group is arranged between the inner sheath and the outer sheath; the armor layer comprises an armor sheath and a metal armor, the metal armor being arranged between the armor sheath and the outer sheath; and a plurality of first water inlet holes are provided in the outer sheath at intervals in the direction of length, and a plurality of second water inlet holes are provided in the armor sheath at intervals in the direction of length. In the umbilical cable provided by the present invention, by providing a plurality of first water inlet holes in the outer sheath at intervals and providing a plurality of second water inlet holes in the armor sheath at intervals in the direction of length, seawater can sequentially pass through the second water inlet holes and the first water inlet holes and then enter the space where the outer-layer functional unit group is located. Thus, under the action of seawater, the friction torque between the outer-layer functional unit group and the outer sheath can be reduced, and birdcage failure caused by torque accumulation can also be avoided.

The invention relates to a shielding tube (1) for the electrical shielding of a feedthrough (3) in a high-voltage device (11). In order to be adapted to different requirements in various areas of the high-voltage device (11), the shielding tube (1) is provided to have an insulating layer (17) and an electrical shielding layer (15) extending along a radially inner side (29) of the insulating layer (17), wherein the shielding tube (1) has at least one thick-film section (33) in which the electrical shielding layer (15) has a first layer thickness (35) and at least one thin-film section (31) in which the shielding layer (15) has a second layer thickness (37), wherein the second layer thickness (37) is less than the first layer thickness (35).

To provide a rigid submarine power cable joint for connecting a multicore DC dynamic submarine power cable to a static submarine power cable on the seabed.SOLUTION: A rigid submarine power cable joint 7 comprises an outer casing 7a. The outer casing 7a includes a first axial end face 7b and a second axial end face which is in an axial end of the outer casing 7a at an opposite side of the first axial end face 7b. The first axial end face 7b includes a single opening 7c in which a multicore dynamic submarine power cable is received, and the second axial end face includes two openings for receiving respective single-core submarine power cables.SELECTED DRAWING: Figure 3a

The present application relates to the technical field of submarine cable, and especially relates to a kind of umbilical cable and umbilical cable punching method.The umbilical cable includes: inner sheath, inner layer functional unit group, outer sheath, outer layer functional unit group and armored layer.Inner layer functional unit group is arranged in inner sheath, outer layer functional unit group is arranged between inner sheath and outer sheath, armored layer includes armored sheath and metal armor, metal armor is arranged between armored sheath and outer sheath;Multiple first water inlets are arranged in outer sheath along the length direction, and multiple second water inlets are arranged in armored sheath along the length direction.The umbilical cable provided by the present application can make seawater enter the space where outer layer functional unit group is located through second water inlet and first water inlet in sequence by arranging multiple first water inlets on outer sheath and multiple second water inlets on armored sheath along the length direction, and can reduce the friction torque between outer layer functional unit group and outer sheath under the action of seawater, to avoid torque accumulation causing birdcage accident.

The invention belongs to the technical field of optical fiber cables, and discloses an optical fiber composite cable and a splicing method thereof.The optical fiber composite cable comprises a plurality of mutually-twisted cable cores, a wrapping layer and a sheath layer, each cable core comprises an optical fiber unit, a conductor and an insulating layer, and the optical fiber unit is located in the center of the conductor and comprises an optical fiber, a body stainless steel pipe and a splicing stainless steel pipe; the optical fiber is arranged in the body stainless steel tube, the splicing stainless steel tube is sleeved at one end of the body stainless steel tube along the length direction, a distance is reserved between the splicing stainless steel tube and a port of the body stainless steel tube, the cross section of the splicing stainless steel tube is in a spiral shape with an opening, the insulating layer wraps the periphery of the conductor, and the length of the optical fiber is larger than that of the conductor. The exposed optical fiber is stored in the body stainless steel tube, the wrapping layer is spirally wound on the periphery of the plurality of cable cores, and the sheath layer is coated on the periphery of the wrapping layer. The splicing operation of the optical fiber composite cable is simple, the performance of the optical fiber in the spliced optical fiber composite cable is stable, and the temperature of the optical fiber composite cable can be accurately detected.