CN115762876A - Armored submarine cable and manufacturing method thereof - Google Patents
Armored submarine cable and manufacturing method thereof Download PDFInfo
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- CN115762876A CN115762876A CN202211507311.8A CN202211507311A CN115762876A CN 115762876 A CN115762876 A CN 115762876A CN 202211507311 A CN202211507311 A CN 202211507311A CN 115762876 A CN115762876 A CN 115762876A
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Abstract
The armored submarine cable comprises a main cable, at least one branch cable and at least one armored clamp, wherein the armored clamp is sleeved on the outer side of the main cable, a through hole is formed in the armored clamp, the branch cable penetrates through the through hole and is connected with the main cable, and a sealing layer is arranged at the joint of the main cable and the branch cable in the armored clamp; the periphery side of main cable is equipped with many armor steel wires, and the periphery side of armor anchor clamps is equipped with a plurality of recesses, and the through-hole is seted up in the bellying between two adjacent recesses wherein, and many armor steel wires evenly distributed are in the recess. The submarine cable has good sealing integrity and mechanical continuity, and one submarine cable can be connected with terminal equipment at a plurality of different positions simultaneously, so that the submarine cable is favorable for reducing the net laying density of submarine lines, and the construction and later maintenance costs are reduced.
Description
Technical Field
The application relates to a submarine cable manufacturing technology, in particular to an armored submarine cable and a manufacturing method of the armored submarine cable.
Background
With the development of ocean economy, an undersea optical-electrical transmission system often needs to be connected with a plurality of terminal devices at different positions to realize multiple functions. At present, aiming at the cable system with a plurality of functional nodes, a widely adopted method is to arrange a plurality of submarine cables according to the line requirements, so that the production and laying cost is increased, the network arrangement density is increased, and the congestion of the submarine cables on the route is caused.
In order to solve the above problems, a splitter is proposed in the related art to split the power and the optical fiber line in the submarine cable. Although the laying cost of the submarine cable can be reduced, the splitter is usually manufactured on site on a construction ship, long construction time is consumed, the continuity of the mechanical performance of the submarine cable is damaged, the sealing and mechanical protection at the branch are weakest, the fault is easy to occur, and the maintenance cost of construction and later-stage system faults is high.
Disclosure of Invention
In order to overcome the defects in the prior art, the armored submarine cable and the manufacturing method of the armored submarine cable are provided, the manufacturing of the submarine cable can be completed in a factory, the mechanical continuity and the sealing performance of the submarine cable are good, the reduction of the net arrangement density of a submarine line is facilitated, and the construction cost and the later maintenance cost are reduced.
On one hand, the armored submarine cable comprises a main cable, at least one branch cable and at least one armored clamp, wherein the armored clamp is sleeved on the outer side of the main cable, a through hole is formed in the armored clamp, the branch cable penetrates through the through hole and is connected with the main cable, and a sealing layer is arranged at the joint of the main cable and the branch cable in the armored clamp;
the periphery of the main cable is provided with a plurality of armored steel wires, the periphery of the armored clamp is provided with a plurality of grooves, the through holes are formed in the protruding portions between two adjacent grooves, and the armored steel wires are evenly distributed in the grooves.
The sealing layer is arranged at the joint of the main cable and the branch cable, so that the sealing integrity of the submarine cable is guaranteed; through set up the armor anchor clamps in the sealing layer outside, the armor anchor clamps include a plurality of recesses, and the through-hole is seted up wherein two adjacent in the bellying between the recess, wear out branch cable from the through-hole, with many armor steel wires evenly distributed of leader cable periphery side in the recess to guarantee the mechanical continuity of submarine cable, thereby be favorable to reducing submarine line cloth net density, reduce construction and later maintenance cost.
The armored submarine cable according to the above, optionally, the outer circumference of the armored clamp is provided with a plurality of protruding portions, the plurality of protruding portions are parallel to each other, the plurality of protruding portions are twisted along the axial direction of the main cable, and the groove is formed between two adjacent protruding portions.
The armored submarine cable comprises a main cable body and a through hole, wherein the main cable body is provided with a first part and a second part, the first part and the second part are opposite, the through hole is formed in the first part, the second part is formed in the second part, and the first part and the second part are connected and fixed with the main cable through fasteners after being butted.
The armored submarine cable as described above, optionally, the surface of the armored clamp is provided with two opposite fixing slots, the fixing slots are arranged along the circumference of the main cable, the fastening member is clamped and fixed in the fixing slots, and the plurality of protruding portions are located between the two fixing slots.
The armored submarine cable according to the above, optionally, the main cable includes a central reinforcing member, a plurality of power wires and a plurality of twisted pairs, the central reinforcing member is disposed along an axial direction of the main cable, and the plurality of power wires and the plurality of twisted pairs are twisted outside the central reinforcing member;
the main cable further comprises a wrapping layer and an inner protection layer, the wrapping layer is sleeved on the outer sides of the power wires and the twisted-pair wires, the inner protection layer is sleeved on the outer side of the wrapping layer, and the armored steel wires are twisted on the outer side of the inner protection layer.
The armored submarine cable described above, optionally, the armored steel wires are wound outside the inner sheath layer by at least two turns.
Optionally, at least one avoidance groove is formed in the main cable, and the avoidance groove penetrates through the wrapping layer and the inner protective layer to expose the plurality of power lines and the plurality of twisted pairs;
and forming a first joint and a second joint after at least one power line or at least one twisted pair is broken, wherein the first joint and the second joint penetrate through the through hole to form the branch cable.
Optionally, the sealing layer is disposed in the avoiding groove, a first threading hole and a second threading hole are disposed in the sealing layer, and the first joint and the second joint are respectively threaded in the first threading hole and the second threading hole.
The armored submarine cable as described above, optionally, the length of the avoidance groove is 100-600mm, the length of the sealing layer is 100-300mm longer than that of the avoidance groove, and the outer diameter of the sealing layer is 1.2-1.5 times that of the inner sheath.
In another aspect, the present application provides a method of manufacturing an armored submarine cable, comprising:
providing a main cable, wherein a plurality of armored steel wires are arranged on the outer peripheral side of the main cable;
providing at least one branch cable connecting the branch cable with the main cable;
preparing a sealing layer at the joint of the main cable and the branch cable;
providing at least one armored clamp, wherein the armored clamp is provided with a through hole and a plurality of grooves, and the through hole is formed in a protruding part between two adjacent grooves; and sleeving the armored clamp on the outer side of the main cable, enabling the branch cable to penetrate through the through hole, and continuously and uniformly twisting armored steel wires on the outer peripheral side of the main cable and uniformly twisting and distributing the armored steel wires in the groove.
The submarine cable manufactured by the armored submarine cable manufacturing method has good sealing performance and mechanical continuity, so that the submarine cable manufacturing method is beneficial to reducing the net arrangement density of submarine lines and reducing the construction and later maintenance cost.
The armored submarine cable manufacturing method according to the above, wherein optionally providing at least one branch cable to connect the branch cable with the main cable, comprises:
circularly cutting the main cable to form an avoidance slot, wherein the avoidance slot penetrates through the wrapping layer and the inner protective layer to expose a plurality of power wires and a plurality of twisted-pair wires;
cutting at least one power line or at least one twisted pair to form a first connector and a second connector, and pulling the first connector and the second connector out of the avoidance groove to form the branch cable.
The armored submarine cable manufacturing method described above, wherein optionally preparing a sealing layer at the junction of the main cable and the branch cable, comprises:
placing the avoidance groove in the main cable into a vulcanization mold, wherein a first threading hole and a second threading hole are formed in the vulcanization mold, and the first joint and the second joint respectively penetrate out of the first threading hole and the second threading hole;
pouring sealing material from a glue pouring port of the vulcanization mould for vulcanization;
removing the curing mold to form the sealing layer at the junction of the main cable and the drop cable.
The armored submarine cable manufacturing method according to the above, optionally, providing at least one armored clamp, the armored clamp being provided with a through hole and a plurality of grooves, the through hole being opened in the boss between two adjacent grooves; will the armouring anchor clamps cover is established the main cable outside makes branch cable pass the through-hole is established the armor steel wire uniformly in succession twists the periphery side of main cable to evenly twist establish and distribute in the recess, include:
attaching a first portion and a second portion of the sheathing jig to the outer sides of the sealing layers from both sides of the main cable, respectively;
drawing the branch cable out of the through hole, and clamping and fixing the armored clamp and the sealing layer by using a fastener;
and twisting a plurality of the armor steel wires to the outer peripheral side of the main cable, continuously and uniformly twisting the armor steel wires in the groove when the steel wires are twisted to an armor clamp, continuously armoring until the whole length of the main cable is completely covered after the groove is fully twisted, and fixing and tightening the steel wires in the groove by using a metal clamping ring.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments or related technologies of the present application, the drawings needed to be used in the description of the embodiments or related technologies are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic illustration of an armored submarine cable according to an embodiment of the present application;
FIG. 2 is a schematic diagram of an armored clamp according to an embodiment of the present application;
FIG. 3 is a cross-sectional view of a main cable provided in accordance with an embodiment of the present application;
FIG. 4 is a drawing illustrating a structure of a steel wire sheath and a part of a sheath clamp according to an embodiment of the present disclosure;
FIG. 5 is a block diagram of a main cable and a branch cable provided in an embodiment of the present application;
FIG. 6 is a block diagram of a main cable, a branch cable, and a seal layer provided in an embodiment of the present application;
FIG. 7 is a schematic view of a curing mold according to one embodiment of the present application;
fig. 8 is a flow chart of a method of manufacturing an armored submarine cable according to an embodiment of the present application.
Reference numerals:
100-main cable; 101-avoidance groove; 110-armoured steel wire; 120-a central stiffener; 130-a power line; 140-twisted pair; 150-wrapping layer; 160-inner sheath layer;
200-a drop cable; 210-a first joint; 220-a second joint;
300-an armored clamp; 301-a first portion; 302-a second portion; 310-a through hole; 320-grooves; 330-a boss; 340-a fastener; 350-fixed groove;
400-a sealing layer;
500-vulcanizing the mold; 501-a cavity; 510-a first threading aperture; 520-a second threading hole;
600-metal snap ring.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments.
All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application. The embodiments described below and the features of the embodiments can be combined with each other without conflict.
In the related technology, the power in the submarine cable and the optical fiber line are branched by adopting the branching device, so that the offshore field operation is needed, the sealing performance and the mechanical continuity of the branched submarine cable are poor, and the net distribution density of the submarine line is increased.
In view of this, the present application aims to provide an armored submarine cable and a manufacturing method of the armored submarine cable, where the armored submarine cable includes a main cable, at least one branch cable and at least one armored clamp, the branch cable passes through the armored clamp and is connected with the main cable, a sealing layer is arranged at a joint of the main cable and the branch cable, a plurality of armored steel wires are arranged on an outer peripheral side of the main cable, a plurality of grooves are arranged on an outer peripheral side of the armored clamp, and the plurality of armored steel wires are uniformly distributed in the grooves. The armor sea cable of this application can accomplish the processing preparation in the mill, and the junction of leader cable and branch cable sets up the sealing layer, has ensured the sealed integrity of sea cable, and the armor steel wire evenly passes branch cable connection position in succession and not breaks, has guaranteed the mechanical continuity of sea cable. The method and the device are favorable for reducing the net arrangement density of the submarine line, and reduce the construction cost and the later maintenance cost.
The following detailed description of the embodiments of the present application will be provided in conjunction with the accompanying drawings to enable those skilled in the art to more fully understand the content of the present application.
FIG. 1 is a schematic illustration of an armored submarine cable according to an embodiment of the present application; FIG. 2 is a schematic diagram of an armored clamp according to an embodiment of the present application; FIG. 3 is a cross-sectional view of a main cable provided in accordance with an embodiment of the present application; FIG. 4 is a diagram of a fitting structure of an armored steel wire and a part of an armored clamp provided in an embodiment of the present application; FIG. 5 is a block diagram of a main cable and a branch cable provided in an embodiment of the present application; FIG. 6 is a block diagram of a main cable, a branch cable, and a seal layer provided in an embodiment of the present application; FIG. 7 is a schematic structural view of a curing mold according to an embodiment of the present application.
Referring to fig. 1 to 7, the present embodiment provides an armored submarine cable, which includes a main cable 100, at least one branch cable 200, and at least one armored clamp 300, wherein the specific number of the branch cables 200 and the armored clamps 300 can be determined according to the requirement, and one armored clamp 300 is required to be installed between each branch cable 200 and the main cable 100. Specifically, the armored clamp 300 is sleeved on the outer side of the main cable 100, a through hole 310 is formed in the armored clamp 300, the branch cables 200 penetrate through the through hole 310 and are connected with the main cable 100, and each branch cable 200 can be connected with a terminal device. The junction of the main cable 100 and the branch cable 200 in the armoring jig 300 is provided with a sealing layer 400, the sealing layer 400 may be made of, for example, glue through a vulcanization process, and the sealing layer 400 may ensure the sealability at the junction of the main cable 100 and the branch cable 200.
In this embodiment, a plurality of armor wires 110 are disposed on the outer periphery of the main cable 100, a plurality of grooves 320 are disposed on the outer periphery of the armor clamp 300, the through hole 310 is opened in one of the protrusions 330, and the plurality of armor wires 110 are uniformly distributed in the grooves 320. In this embodiment, the armor clamp 300 is disposed outside the sealing layer 400, the armor clamp 300 includes a plurality of grooves 320, the through hole 310 is opened in one of the protrusions 330, the branch cable penetrates out of the through hole 310, and a plurality of armor wires 110 on the outer peripheral side of the main cable 100 are uniformly distributed in the grooves 320, so as to ensure the mechanical continuity of the submarine cable, and simultaneously, the armor wires 110 can be prevented from cutting the branch cable 200. Because the submarine cable of this embodiment can be good at the factory preliminary working, and the submarine cable has good leakproofness and mechanical continuity, consequently the submarine cable is difficult to be destroyed, is favorable to reducing submarine line cloth net density, reduces construction and later maintenance cost.
In this embodiment, a metal clip 600 is further disposed outside the armored clamp 300, and the metal clip 600 is used to further clamp and fix the armored steel wire 110 to prevent it from loosening.
Referring to fig. 2, in a possible embodiment, the armor clamp 300 of the present embodiment is provided with a plurality of protrusions 330 on an outer peripheral side, the plurality of protrusions 330 are parallel to each other, the plurality of protrusions 330 are twisted along an axial direction of the main cable 100, and a groove 320 is formed between two adjacent protrusions 330, so as to facilitate placing of the armor wires 110 on the main cable 100.
As shown in fig. 4, a plurality of armor wires 110 may be disposed in each groove 320, and the number of the armor wires 110 may be selected according to the requirement, for example, 4, 5, or 6.
Further, the armor clamp 300 of the present embodiment adopts a haversian structure, the armor clamp 300 includes a first portion 301 and a second portion 302 which are oppositely disposed, a portion of the through hole 310 is opened on the first portion 301, the other portion is opened on the second portion 302, and the first portion 301 and the second portion 302 are connected and fixed with the main cable 100 through the fastener 340 after being butted, so as to prevent the armor clamp 300 from moving and loosening when in use. After the armored clamp 300 is butted, a cavity is formed between the first part 301 and the second part 302, and through holes for the main cable 100 to pass through are formed on two sides of the cavity. The fastener 340 in this embodiment may include, for example, a clip, a bolt, a nut, and the like.
Specifically, the surface of the sheathing jig 300 of the present embodiment is provided with two fixing grooves 350 which are oppositely disposed, and the fixing grooves 350 are disposed along the circumferential direction of the main cable 100 and have a substantially circular ring shape; the fastening member 340 is snap-fitted into the fixing grooves 350, and the plurality of protrusions 330 are located between the two fixing grooves 350.
In this embodiment, the armoring jig 300 may be made of stainless steel, titanium alloy, or other materials.
With continued reference to fig. 3, in one possible embodiment, the main cable 100 of the present embodiment includes a central strength member 120, a plurality of power wires 130 and a plurality of twisted pairs 140, the central strength member 120 is disposed along the axial direction of the main cable 100, and the plurality of power wires 130 and the plurality of twisted pairs 140 are twisted outside the central strength member 120.
The main cable 100 further comprises a wrapping layer 150 and an inner protection layer 160, the wrapping layer 150 is sleeved on the outer sides of the power wires 130 and the twisted wires 140, the inner protection layer 160 is sleeved on the outer side of the wrapping layer 150, and the armored steel wires 110 are twisted on the outer side of the inner protection layer 160.
Optionally, the plurality of armor wires 110 in this embodiment are wound at least two times outside the inner sheath 160, so as to better protect the mechanical continuity of the submarine cable.
Continuing to refer to fig. 5, fig. 5 shows the structure of the drop cable 200 being machined directly into the main cable 100. In one possible embodiment, the main cable 100 of the present embodiment is provided with at least one avoidance slot 101, and the avoidance slot 101 penetrates through the wrapping 150 and the inner sheath 160 to expose the plurality of power wires 130 and the plurality of twisted pairs 140; that is, the escape groove 101 of the present embodiment is formed after removing the wrapping layer 150 and the inner sheath 160 at a designated position on the main cable 100.
In this embodiment, the first connector 210 and the second connector 220 are formed after the at least one power wire 130 or the at least one twisted wire 140 is broken, the first connector 210 and the second connector 220 are inserted through the through hole 310 to form the branch cable 200, and when the lengths of the first connector 210 and the second connector 220 are not sufficient, a certain length of the insulated wire may be pre-connected to the first connector 210 and the second connector 220.
Referring to fig. 6, further, the sealing layer 400 of the present embodiment is disposed in the avoiding groove 101, a first threading hole and a second threading hole are disposed in the sealing layer 400, and the first joint 210 and the second joint 220 are respectively threaded in the first threading hole and the second threading hole. That is, the sealing layer 400 of the present embodiment is manufactured in the avoiding groove 101 directly after the branch cable 200 is manufactured.
Continuing to refer to fig. 7, fig. 7 shows a block diagram of a vulcanization mold for making the sealing layer 400. A cavity 501 is formed inside the vulcanizing mold 500, and a first threading hole 510 and a second threading hole 520 are formed in the vulcanizing mold 500. When the cable sealing device is used, the avoiding groove 101 is arranged in the cavity 501, the first connector 210 and the second connector 220 of the branch cable 200 respectively penetrate out of the first threading hole 510 and the second threading hole 520, glue is poured into the branch cable from a glue filling opening of a mold to start vulcanization, and the mold is removed after vulcanization to form the sealing layer 400.
Optionally, the length of the avoidance slot 101 in this embodiment is 100-600mm. The length of the cavity 501 is 100-300mm longer than that of the avoiding groove 101, and the outer diameter of the cavity is 1.2-1.5 times of that of the inner sheath 160.
Fig. 8 is a flow chart of a method of manufacturing an armored submarine cable according to an embodiment of the present application.
Referring to fig. 8, the present embodiment further provides a method for manufacturing an armored submarine cable, including:
and step S110, providing a main cable, wherein a plurality of armored steel wires are arranged on the outer peripheral side of the main cable.
The main cable in this embodiment can be manufactured by the following method: first, the power wires, twisted pair wires and filler members are twisted around the central reinforcement member in a spiral manner, preferably at a twist pitch of 8 to 25 times the outer diameter after twisting, thereby ensuring the cable formation to be round. And then, filling a watertight filling material into gaps among the power lines, the twisted pairs and the filling pieces to form a watertight filling layer, so that the axial water blocking function is ensured. Then, a lapping layer can be formed by lapping outside the watertight filling layer in a lapping mode, and the lapping rate is preferably 10% -40%; the inner protective layer is extruded outside the wrapping layer to play a role in radial water blocking and sealing. Finally, the armouring steel wire can be stranded outside the inner sheath.
Step S120, providing at least one branch cable, and connecting the branch cable with the main cable.
The present embodiment can manufacture the branch cable by the following method:
first, the inner sheath of the main cable is circumferentially cut to form an avoidance slot, which passes through the wrapping layer and the inner sheath to expose the plurality of power wires and the plurality of twisted pairs.
Then, at least one power line or at least one twisted pair is found pre-branched and cut and stripped of the inner conductor to form a first splice and a second splice, which are pulled out of the access slot to form a branch cable. If the lengths of the first joint and the second joint are not enough, cables with certain lengths can be pre-jointed to be used as branch cables, the pre-jointing can be performed by adopting a welding, crimping or other equivalent conductor splicing method, the pre-jointing length can be determined according to engineering application, and after the pre-jointing of the conductors, insulating treatment can be performed by adopting an insulating tape wrapping, a heat shrinkage cap or other equivalent methods.
In the embodiment, the first connector and the second connector are tapped from the same power line or twisted pair and connected to the same device, so that the continuity of the electrical performance is guaranteed.
And S130, preparing a sealing layer at the joint of the main cable and the branch cable.
This example can prepare the sealant layer by the following method:
the avoidance groove on the main cable is placed into a vulcanization mould, a first threading hole and a second threading hole are formed in the vulcanization mould, and the first joint and the second joint penetrate out of the first threading hole and the second threading hole respectively.
And pouring sealing material from a glue pouring port of the vulcanization mould for vulcanization.
The vulcanization mold is removed to form a sealing layer at the junction of the main cable and the branch cable.
The main cable and the branch cable which are annularly cut are completely wrapped and sealed again through the sealing layer, and the sealing integrity of the submarine cable is guaranteed.
Step S140, providing at least one armored clamp, wherein the armored clamp is provided with a through hole and a plurality of grooves, and the through hole is formed in one of the protruding parts; and sheathing the armored clamp outside the main cable, enabling the branch cable to pass through the through hole, continuously and uniformly twisting the armored steel wires on the outer peripheral side of the main cable, and uniformly twisting and distributing the armored steel wires in the groove.
Specifically, during manufacturing, the first part and the second part of the armor clamp can be respectively attached to the outer sides of the sealing layers from the two sides of the main cable.
Then, the branch cable is pulled out from the through hole, and the armor clamp and the sealing layer are clamped and fixed by the fastener.
And finally, twisting a plurality of the armor steel wires to the outer peripheral side of the main cable, continuously and uniformly twisting the armor steel wires in the groove when the steel wires are twisted to an armor clamp, continuously armoring until the whole length of the main cable is completely covered after the groove is fully twisted, and fixing and tightening the steel wires in the groove by using a metal clamping ring.
Taking the outer side of a main cable as an example, arranging two layers of armored steel wires, stranding a plurality of armored steel wires on the outer peripheral side of the main cable by using an armored equipment cage stranding machine, when the armored steel wires are produced to a first layer of steel wire stranding point reached by an armored clamp, the size of the armored clamp is far larger than that of the armored stranding die, so that the branch parts can not be armored normally through the stranding die.
The armoring clamp is arranged at the twisting point of the second layer of armoring steel wires, and the second layer of armoring clamp is arranged on the first layer of armoring clamp, so that armoring can still be carried out by adopting the method.
The submarine cable manufactured by the armored submarine cable manufacturing method has good sealing performance and mechanical continuity, so that the submarine cable manufacturing method is beneficial to reducing the net distribution density of submarine lines and reducing the construction and later maintenance cost.
In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the present application.
In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; they may be directly connected or indirectly connected through intervening media, or may be connected through the use of two elements or the interaction of two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as the case may be.
It should be noted that, in the description of the present application, the terms "first" and "second" are used merely for convenience in describing different components, and are not to be construed as indicating or implying a sequential relationship, relative importance, or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature.
The embodiments or implementation manners in the present application are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts in each embodiment are referred to each other.
In the description of the present application, reference to the description of the terms "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this application, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and these modifications or substitutions do not depart from the scope of the technical solutions of the embodiments of the present application.
Claims (13)
1. An armored submarine cable is characterized by comprising a main cable, at least one branch cable and at least one armored clamp, wherein the armored clamp is sleeved on the outer side of the main cable, a through hole is formed in the armored clamp, the branch cable penetrates through the through hole and is connected with the main cable, and a sealing layer is arranged at the joint of the main cable and the branch cable in the armored clamp;
the outer periphery of the main cable is provided with a plurality of armored steel wires, the outer periphery of the armored clamp is provided with a plurality of grooves, the through holes are formed in the protruding portions between two adjacent grooves, and the armored steel wires are uniformly distributed in the grooves.
2. The armored submarine cable according to claim 1, wherein a plurality of protrusions are provided on the outer circumferential side of the armored clamp, the plurality of protrusions are parallel to each other, the plurality of protrusions are twisted in the axial direction of the main cable, and the groove is formed between two adjacent protrusions.
3. The armored submarine cable according to claim 2, wherein the armored clamp comprises a first portion and a second portion which are oppositely arranged, one portion of the through hole is formed on the first portion, the other portion of the through hole is formed on the second portion, and the first portion and the second portion are connected and fixed with the main cable through fasteners after being butted.
4. The armored submarine cable according to claim 3, wherein the surface of the armored clamp is provided with two opposite fixing grooves, the fixing grooves are arranged along the circumferential direction of the main cable, the fastening member is clamped and fixed in the fixing grooves, and the plurality of the protrusions are located between the two fixing grooves.
5. The armored submarine cable according to any one of claims 1 to 4, wherein the main cable comprises a central strength member, a plurality of power wires and a plurality of twisted pairs, the central strength member being arranged in the axial direction of the main cable, the plurality of power wires and the plurality of twisted pairs being twisted outside the central strength member;
the main cable further comprises a wrapping layer and an inner protection layer, the wrapping layer is sleeved on the outer sides of the power wires and the twisted-pair wires, the inner protection layer is sleeved on the outer side of the wrapping layer, and the armored steel wires are twisted on the outer side of the inner protection layer.
6. The armored submarine cable according to claim 5, wherein the plurality of armored wires are wound in at least two turns outside the inner jacket.
7. The armored submarine cable according to claim 5, wherein the main cable is provided with at least one avoidance slot passing through the wrapping and inner sheath to reveal the plurality of power wires and the plurality of twisted pairs;
and forming a first joint and a second joint after at least one power line or at least one twisted pair is broken, wherein the first joint and the second joint penetrate through the through hole to form the branch cable.
8. The armored submarine cable according to claim 7, wherein the sealing layer is disposed in the avoidance groove, a first threading hole and a second threading hole are provided in the sealing layer, and the first joint and the second joint are respectively threaded into the first threading hole and the second threading hole.
9. The armored submarine cable according to claim 8, wherein the length of the avoiding groove is 100-600mm, the length of the sealing layer is 100-300mm longer than that of the avoiding groove, and the outer diameter of the sealing layer is 1.2-1.5 times that of the inner sheath.
10. A method of manufacturing an armored submarine cable, comprising:
providing a main cable, wherein a plurality of armored steel wires are arranged on the outer peripheral side of the main cable;
providing at least one branch cable connecting the branch cable with the main cable;
preparing a sealing layer at the joint of the main cable and the branch cable;
providing at least one armored clamp, wherein the armored clamp is provided with a through hole and a plurality of grooves, and the through hole is formed in a protruding part between two adjacent grooves; and sleeving the armored clamp on the outer side of the main cable, enabling the branch cable to penetrate through the through hole, and continuously and uniformly twisting armored steel wires on the outer peripheral side of the main cable and uniformly twisting and distributing the armored steel wires in the groove.
11. The armored submarine cable according to claim 10, wherein said providing at least one branch cable connecting said branch cable with said main cable comprises:
circularly cutting the main cable to form an avoidance slot, wherein the avoidance slot penetrates through the wrapping layer and the inner protective layer to expose a plurality of power wires and a plurality of twisted-pair wires;
cutting at least one power line or at least one twisted pair to form a first connector and a second connector, and pulling the first connector and the second connector out of the avoidance groove to form the branch cable.
12. The armored submarine cable according to claim 11, wherein preparing a seal at the junction of the main cable and the branch cable comprises:
placing the avoidance groove in the main cable into a vulcanization mold, wherein a first threading hole and a second threading hole are formed in the vulcanization mold, and the first joint and the second joint respectively penetrate out of the first threading hole and the second threading hole;
pouring sealing material from a glue pouring port of the vulcanization mould for vulcanization;
removing the curing mold to form the sealing layer at the junction of the main cable and the drop cable.
13. The armored submarine cable according to claim 12, wherein said at least one armored clamp is provided with a through hole and a plurality of grooves, said through hole opening in a raised portion between two adjacent ones of said grooves; will the armouring anchor clamps cover is established the main cable outside makes branch cable pass the through-hole is established the armor steel wire uniformly in succession twists the periphery side of main cable to evenly twist establish and distribute in the recess, include:
attaching a first portion and a second portion of the sheathing jig to the outer sides of the sealing layers from both sides of the main cable, respectively;
drawing the branch cable out of the through hole, and clamping and fixing the armored clamp and the sealing layer by using a fastener;
and twisting a plurality of the armor steel wires to the outer peripheral side of the main cable, continuously and uniformly twisting the armor steel wires in the grooves when the steel wires are twisted to an armor clamp, continuously and armored until the grooves are full of steel wires to completely cover the whole length of the main cable, and fixing and tightening the steel wires in the grooves by using metal clamping rings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211507311.8A CN115762876A (en) | 2022-11-29 | 2022-11-29 | Armored submarine cable and manufacturing method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211507311.8A CN115762876A (en) | 2022-11-29 | 2022-11-29 | Armored submarine cable and manufacturing method thereof |
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| CN115762876A true CN115762876A (en) | 2023-03-07 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116864191A (en) * | 2023-08-07 | 2023-10-10 | 安徽天康集团数据线缆有限公司 | Deep sea data transmission cable |
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2022
- 2022-11-29 CN CN202211507311.8A patent/CN115762876A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116864191A (en) * | 2023-08-07 | 2023-10-10 | 安徽天康集团数据线缆有限公司 | Deep sea data transmission cable |
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