CN209786772U - Three-core high-voltage submarine cable joint box - Google Patents
Three-core high-voltage submarine cable joint box Download PDFInfo
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- CN209786772U CN209786772U CN201920942808.XU CN201920942808U CN209786772U CN 209786772 U CN209786772 U CN 209786772U CN 201920942808 U CN201920942808 U CN 201920942808U CN 209786772 U CN209786772 U CN 209786772U
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Abstract
The utility model discloses a three-core high voltage submarine cable joint box, connect subassembly and at least one light subassembly that continues including an external component, at least three electricity, electricity connect the subassembly with the light subassembly that continues set up in inside the external component, two submarine cables that need continue are followed respectively the both ends that the external component is relative insert inside the external component, through electricity connect the subassembly and the light subassembly that continues communicates, constitutes submarine cable joint box.
Description
Technical Field
The utility model relates to a submarine power cable technical field, more accurate saying so relates to a three-core high pressure submarine cable splice box.
Background
The submarine power cable is important equipment for offshore power transmission, and can meet the requirements of power transmission, optical fiber communication and the like. Particularly, in recent years, with the vigorous development of offshore wind power generation at home and abroad, the laying amount of submarine cables is increased year by year, and the problems of the submarine cables in the application process are increasingly highlighted. The submarine cable is inevitably impacted by pulling force or other external force, such as sand and stone friction, anchor damage and the like, in the laying or running process, so that the submarine cable is damaged. When the submarine cable is damaged, a splice closure needs to be manufactured and repaired.
The splice closure among the prior art is mostly land cable splice closure, and its design is the requirement in order to satisfy land cable connection, only needs to restore land cable's electrical property and a partial mechanical properties. The existing joint box generally adopts an integral prefabricated rubber insulating part to recover the insulation of a cable, and adopts a copper shell or a glass fiber reinforced plastic protective shell to mechanically protect and seal the cable joint. However, the submarine environment is complex, and due to the pressure of water, the dead weight of the cable and the mechanical action in the laying process, the submarine cable faces a more severe laying environment, and the common connector box for the land cable cannot meet the use requirement of a high-voltage submarine cable connector.
In addition, the land cable joint is mostly waterproof by adopting a mode of welding a copper shell and pouring glue into a glass fiber reinforced plastic protective shell, the process is complex, the waterproof performance of the product completely depends on the technical level of constructors, and the cable is easily damaged when the copper shell is welded; land cable is mostly single core cable, and no armor, therefore connects and need not to resume the armor, does not have mechanical protection structure, and three-core high pressure submarine cable has outside armor, need can bear very big mechanical force, and three-core system, therefore land cable connects and can't satisfy operation requirement.
In conclusion, the cable joint box in the prior art cannot meet the use requirements of the three-core high-pressure submarine cable, and a submarine cable joint box which is good in sealing performance, strong in corrosion resistance, long in service life and convenient to install and aims at underwater high pressure needs to be designed.
SUMMERY OF THE UTILITY MODEL
In view of this, the main objective of the present invention is to provide a three-core high-voltage submarine cable connector box, which includes an external component, at least three electrical connection components and at least one optical connection component, wherein the electrical connection components and the optical connection components are disposed inside the external component, two submarine cables to be connected are inserted into the external component from two opposite ends of the external component, and are connected through the electrical connection components and the optical connection components, so as to form the submarine cable connector box.
In order to achieve the above object, the utility model provides a three-core high-voltage submarine cable joint box for connect two submarine cables that need to continue, three-core high-voltage submarine cable joint box includes that external component, at least three electricity continue subassembly and at least one light and continue the subassembly, electricity continue the subassembly with the light sets up inside the external component, two submarine cables that need to continue are followed respectively the relative both ends of external component insert inside the external component, through electricity continues the subassembly and the light subassembly that continues communicates.
Preferably, the external component includes an outer shell, two sets of bending limiters and two fixing plates, the electrical connection component and the optical connection component are disposed inside the outer shell, the two fixing plates are disposed on two opposite sides of the outer shell respectively and connected to the outer shell, the two sets of bending limiters are disposed on two opposite sides of the outer shell respectively and connected to the outer shell, and two submarine cables to be connected are inserted into the external component through the two sets of bending limiters respectively.
Preferably, the external component comprises two armor pressing plates, the joint of the submarine cable and the external component is stripped to form an armor steel wire, the armor steel wire is located between the fixing plate and the armor pressing plates, the two armor pressing plates are arranged inside the outer shell and are respectively connected with the two fixing plates, and the armor pressing plates and the fixing plates fix the armor steel wire.
Preferably, the lateral part of the outer shell is provided with a plurality of outer shell through holes, each outer shell through hole is provided with an outer shell plug, the outer shell is subjected to glue pouring treatment through each outer shell through hole, and the outer shell through hole is plugged by the outer shell plug.
Preferably, the outer housing is connected to an anode protection block.
Preferably, the electrical continuity assembly comprises a straight joint, a bushing, two sealing sleeves and two end covers, the two sealing sleeves are coaxially arranged on two sides of the bushing and connected with the bushing, the two end covers are respectively arranged at the end parts, far away from the bushing, of the two sealing sleeves, the two end covers are respectively connected with the two sealing sleeves, the straight joint is arranged inside the two sealing sleeves, and cable cores of two sea cables to be continued respectively penetrate through the two end covers and are connected with two ends of the straight joint.
Preferably, a pressing plate and a plurality of sealing rings are arranged at the joint of the end cover and the through joint, the pressing plate and the sealing rings are arranged around the through joint, and the pressing plate and the end cover are fastened and connected to limit the sealing rings.
Preferably, the side part of the sealing sleeve is provided with a plurality of sealing sleeve through holes, a plug is arranged at each sealing sleeve through hole, the sealing sleeve is subjected to glue filling treatment through each sealing sleeve through hole, and the plug blocks the sealing sleeve through hole.
Preferably, the optical connection component comprises a fiber melting disc, an optical fiber connector box cover plate, two sealing bolts, a plurality of rubber sealing rings, two pressing rings and two screwing nuts, the optical fiber connector box is hollow, the optical fiber connector box cover plate is arranged at the top of the optical fiber connector box, the fiber melting disc is arranged inside the optical fiber connector box, the two sealing bolts are respectively arranged at two opposite ends of the optical fiber connector box and are in spiral connection with the optical fiber connector box, the rubber sealing rings are respectively in coaxial connection with the two sealing bolts, the two rubber sealing rings are respectively arranged at the end parts of the two sealing bolts far away from the optical fiber connector box, the two pressing rings are respectively in coaxial connection with the two sealing bolts, and the two pressing rings are respectively arranged at the end parts of the two rubber sealing rings far away from the optical fiber connector box, two the nut of screwing respectively with two the coaxial screwed connection of sealing bolt, and two the nut of screwing sets up respectively two sealing bolt keeps away from the tip of optical fiber splice box, two optical cables that wait to continue pass through respectively the nut of screwing the clamping ring rubber seal ring the sealing bolt stretches into inside the optical fiber splice box, two optical cables stretch into the inside part of optical fiber splice box passes through melt the fine dish and continue.
Preferably, the optical connection component comprises two clamping pieces, and the two clamping pieces are respectively combined with two screwing nuts to be installed to fix the optical cable.
Compared with the prior art, the utility model discloses a three-core high pressure submarine cable joint box's advantage lies in: the three-core high-voltage submarine cable joint box has the advantages of strong waterproof performance and pressure-bearing performance, good sealing effect, good mechanical protection effect, no influence of seawater or general external force and long service life; the three-core high-voltage submarine cable joint box adopts a mechanical sealing mode, is simple in structure, independent of the technical level of constructors in performance and low in manufacturing and installation cost.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic view of the overall structure of a three-core high-voltage submarine cable connector box according to the present invention.
Fig. 2 is a schematic structural diagram of an electrical connector assembly of a three-core high-voltage submarine cable connector box according to the present invention.
Fig. 3 is a schematic structural diagram of an optical connector assembly of a three-core high-voltage submarine cable connector box according to the present invention.
Detailed Description
As shown in fig. 1, the utility model relates to a three-core high voltage submarine cable splice box includes an external component 10, three electricity connection subassembly 20 and at least one light connection subassembly 30, electricity connection subassembly 20 with light connection subassembly 30 sets up inside external component 10, and two submarine cables that need to continue are inserted inside external component 10 from the relative both ends of external component 10 respectively, through electricity connection subassembly 20 with light connection subassembly 30 communicates. The external component 10 forms a mechanical protection for the electrical splice component 20 and the optical splice component 30; the electrical splice assembly 20 and the optical splice assembly 30 each have a sealing structure; the metal parts in the external component 10 are made of stainless steel or carbon steel materials subjected to marine heavy corrosion protection treatment; the metal parts in the electrical connection assembly 20 and the optical connection assembly 30 are made of stainless steel materials, and marine heavy corrosion prevention treatment can be carried out or not. The three-core high-voltage submarine cable joint box has high overall sealing performance, and the external component 10 has high mechanical strength, so that the three-core high-voltage submarine cable joint box has a good overall mechanical protection effect.
Specifically, the external component 10 includes an outer shell 11, a plurality of bending limiters 12, two fixing plates 13, and two armor pressing plates 14, where the outer shell 11 is hollow, and the electrical connection component 20 and the optical connection component 30 are disposed inside the outer shell 11. The submarine cable and the external component junction is peeled off and is formed the armor steel wire, the armor steel wire is located fixed plate 13 with between the armor clamp plate 14, two the armor clamp plate sets up the shell body is inside respectively with two the fixed plate is connected, armor clamp plate 14 with fixed plate 13 is right the armor steel wire forms fixedly, two crooked limiter 12 sets up respectively the shell body 11 relative both sides with fixed plate 13 is connected. Specifically, the bending limiter 12 closest to the fixing plate 13 further includes a bending limiter coupler 121, and the bending limiter 12 is coupled to the fixing plate 13 through the bending limiter coupler 121. Two submarine cables to be spliced are inserted into the interior of the outer member 10 through the two bending limiters 12, respectively. The fixing plate 13 and the armored pressing plate 14 jointly fix the submarine cable inserted into the outer assembly 10, and the fixing plate 13 and the armored pressing plate 14 are connected by fasteners. The two bending limiters 12 form submarine cable bending protection, and prevent the submarine cable splice closure from damaging the splice and submarine cables due to excessive bending force in the laying process. The outer shell 11 is painted, and the outer shell 11 is connected with an anode protection block 111, so that the corrosion resistance is further improved. It should be noted that the external shape of the external component 10 may be modified according to practical applications, for example, a tapered clamp form, a glue-pouring structure, etc. and the thickness of the components in the external component 10 may also be adjusted according to practical applications.
Furthermore, the side of the outer shell 11 has a plurality of outer shell through holes, and each of the outer shell through holes is provided with an outer shell plug 111. Specifically, the glue filling process is performed on the outer shell 11 through each outer shell through hole, and then the outer shell plug 111 is used for plugging the outer shell through hole to prevent glue leakage. By means of glue pouring treatment and arrangement of the plugs, the sealing performance of the three-core high-voltage submarine cable joint box is further improved, and the three-core high-voltage submarine cable joint box can be used in deeper seabed.
As shown in fig. 2, the electrical connection assembly 20 includes a through joint 21, a bushing 22, two sealing sleeves 23, and two end caps 24, where the bushing 22 is annular, the sealing sleeve 23 is tubular, a plurality of sealing sleeve through holes are formed in a side portion of the sealing sleeve 23, and a plug 231 is disposed at each of the sealing sleeve through holes. The two sealing sleeves 23 are coaxially arranged at two sides of the through hole of the lining 22 and connected with the lining 22, a plurality of rubber sealing rings 221 are arranged at the joint of the sealing sleeve 23 and the lining 22, and the sealing sleeve 23 and the lining 22 are connected through fasteners. The sealing sleeve 23 is subjected to glue filling treatment through each sealing sleeve through hole, and the sealing sleeve through holes are blocked by the plugs 231 to prevent glue leakage and improve the sealing performance of the electric continuity assembly 20. The two end covers 24 are respectively arranged at the end parts of the two sealing sleeves 23 far away from the lining 22, and the two end covers 24 are respectively connected with the two sealing sleeves 23. The through-connection 21 is arranged inside both of the sealing sleeves 23. The cable cores of two submarine cables to be connected respectively penetrate through the two end covers 24 to be connected with the two ends of the through connector 21, and the cable cores of the two submarine cables are connected through the through connector 21. Further, a pressure plate 241 and a plurality of sealing rings 242 are arranged at the joint of the end cover 24 and the through joint 21, the pressure plate 241 and the sealing rings 242 are arranged around the through joint 21, and the pressure plate 241 and the end cover 24 are connected through a fastening piece to limit the sealing rings 242. The electrical continuity assembly 20 has good sealing performance, simple structure and convenient disassembly and assembly.
As shown in fig. 3, the optical connection assembly 30 includes a fiber melting disc 31, an optical fiber splice closure 32, an optical fiber splice closure cover 33, two sealing bolts 34, a plurality of rubber sealing rings 35, two pressing rings 36, two tightening nuts 37, and two clamping pieces 38, the optical fiber splice closure 32 is hollow, and the fiber melting disc 31 is disposed inside the optical fiber splice closure 32. The fiber splice closure cover 33 is mounted on top of the fiber splice closure 32. Specifically, the top of the optical fiber splice closure 32 has a groove, and after a sealing ring is installed in the groove, the cover plate 33 of the optical fiber splice closure is covered on the groove to ensure the sealing performance of the optical connection assembly 30. The two sealing bolts 34 are respectively arranged at two ends of the optical fiber splice closure 32 and are spirally connected with the optical fiber splice closure 32. A plurality of sealing rings 341 are disposed at the connection position of the sealing bolt 34 and the optical fiber splice closure 32, and the plurality of sealing rings 341 coaxially surround the portion of the sealing bolt 34 extending into the optical fiber splice closure 32, so as to ensure the sealing performance of the optical connection assembly 30. The rubber sealing rings 35 are respectively coaxially connected with the two sealing bolts 34, and the two rubber sealing rings 35 are respectively arranged at the end parts of the two sealing bolts 34 far away from the optical fiber splice closure 32. Two the clamping ring 36 respectively with two sealing bolt 34 coaxial coupling, and two the clamping ring 36 sets up two respectively rubber seal 35 keeps away from the tip of fiber splice box 32. The two screwing nuts 37 are respectively coaxially and spirally connected with the two sealing bolts 34, and the two screwing nuts 37 are respectively arranged at the end parts of the two sealing bolts 34 far away from the optical fiber splice closure 32. The two clamping pieces 38 are respectively combined with the two screwing nuts 37 to fix the optical cable. Two optical cables to be connected extend into the optical fiber joint box 32 through the screwing nut 37, the pressing ring 36, the rubber sealing ring 35 and the sealing bolt 34 respectively, and the parts of the two optical cables extending into the optical fiber joint box 32 are connected through the fiber melting disc 31. The optical connection assembly 30 has good sealing performance, simple structure and convenient assembly and disassembly.
In summary, the electrical connection assembly 20 and the optical connection assembly 30 have good sealing performance, and the outer assembly 10 has greater mechanical strength. Therefore, the three-core high-voltage submarine cable joint box is strong in waterproof performance and bearing performance, good in sealing effect and mechanical protection effect, free of influence of seawater or general external force and long in service life. In addition, the three-core high-voltage submarine cable joint box adopts a mechanical sealing mode, is simple in structure, independent of the technical level of constructors in performance and low in manufacturing and installation cost.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A three-core high-voltage submarine cable joint box is used for connecting two submarine cables to be connected and is characterized by comprising an external component, at least three electrical connection components and at least one optical connection component, wherein the electrical connection components and the optical connection components are arranged in the external component, and the two submarine cables to be connected are inserted into the external component from two opposite ends of the external component and are communicated through the electrical connection components and the optical connection components.
2. The three-core high-voltage submarine cable junction box according to claim 1, wherein the external assembly comprises an outer housing, two sets of bending limiters and two fixing plates, the electrical connection assembly and the optical connection assembly are disposed inside the outer housing, the two fixing plates are disposed on two opposite sides of the outer housing and connected with the outer housing, the two sets of bending limiters are disposed on two opposite sides of the outer housing and connected with the outer housing, and two submarine cables to be connected are inserted into the external assembly through the two sets of bending limiters.
3. The three-core high-voltage submarine cable junction box according to claim 2, wherein the outer assembly comprises two armor pressing plates, the junction of the submarine cable and the outer assembly is stripped to form an armor steel wire, the armor steel wire is located between the fixing plate and the armor pressing plates, the two armor pressing plates are arranged inside the outer shell and are respectively connected with the two fixing plates, and the armor pressing plates and the fixing plates form a fixing for the armor steel wire.
4. The three-core high-voltage submarine cable connector according to claim 2, wherein the lateral part of the outer shell has a plurality of outer shell through holes, each of the outer shell through holes is provided with an outer shell plug, the outer shell is filled with glue through each of the outer shell through holes, and the outer shell plugs block the outer shell through holes.
5. A three-core high voltage submarine cable junction box according to claim 2, wherein said outer housing is connected to an anode protection block.
6. The three-core high-voltage submarine cable junction box according to claim 1, wherein said electrical splicing assembly comprises a straight splice, a bushing, two sealing sleeves, and two end caps, wherein the two sealing sleeves are coaxially disposed on both sides of the bushing and connected to the bushing, the two end caps are disposed on the ends of the two sealing sleeves away from the bushing, the two end caps are connected to the two sealing sleeves, the straight splice is disposed inside the two sealing sleeves, and cable cores of two submarine cables to be spliced are respectively connected to both ends of the straight splice through the two end caps.
7. The three-core high-voltage submarine cable junction box according to claim 6, wherein a pressure plate and sealing rings are provided at the junction of said end cap and said through-connection, said pressure plate and said sealing rings being disposed around said through-connection, said pressure plate and said end cap being securely connected to define a limit for said sealing rings.
8. The three-core high-voltage submarine cable junction box according to claim 6, wherein said sealing sleeve has a plurality of sealing sleeve through holes at its side, and a plug is disposed at each of said sealing sleeve through holes, and said sealing sleeve is filled with glue through each of said sealing sleeve through holes, and said plug blocks said sealing sleeve through hole.
9. The three-core high-voltage submarine cable junction box according to claim 1, wherein the optical connection assembly comprises a fiber melting disc, an optical fiber junction box cover plate, two sealing bolts, a plurality of rubber sealing rings, two pressing rings and two screwing nuts, the optical fiber junction box is hollow, the optical fiber junction box cover plate is mounted on the top of the optical fiber junction box, the fiber melting disc is arranged inside the optical fiber junction box, the two sealing bolts are respectively arranged at two opposite ends of the optical fiber junction box and are spirally connected with the optical fiber junction box, the plurality of rubber sealing rings are respectively coaxially connected with the two sealing bolts, the two rubber sealing rings are respectively arranged at the end parts of the two sealing bolts far away from the optical fiber junction box, and the two pressing rings are respectively coaxially connected with the two sealing bolts, and two the clamping ring sets up respectively two rubber seal keeps away from the tip of fiber splice box, two the nut of screwing respectively with two the coaxial screwed connection of sealing bolt, and two the nut of screwing sets up respectively two sealing bolt keeps away from the tip of fiber splice box, two optical cables that wait to continue pass through respectively the nut of screwing the clamping ring rubber seal the sealing bolt stretches into inside the fiber splice box, two optical cables stretch into the inside part of fiber splice box passes through melt the fine dish and continue.
10. The three-core high voltage submarine cable junction box according to claim 8, wherein said optical splice assembly comprises two clips, each of said clips being mounted in combination with two tightening nuts to secure the optical cable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920942808.XU CN209786772U (en) | 2019-06-21 | 2019-06-21 | Three-core high-voltage submarine cable joint box |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920942808.XU CN209786772U (en) | 2019-06-21 | 2019-06-21 | Three-core high-voltage submarine cable joint box |
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| CN209786772U true CN209786772U (en) | 2019-12-13 |
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| CN201920942808.XU Active CN209786772U (en) | 2019-06-21 | 2019-06-21 | Three-core high-voltage submarine cable joint box |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110212485A (en) * | 2019-06-21 | 2019-09-06 | 中天海洋系统有限公司 | Three core high-voltage undersea cable connector boxs of one kind and its installation method |
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2019
- 2019-06-21 CN CN201920942808.XU patent/CN209786772U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110212485A (en) * | 2019-06-21 | 2019-09-06 | 中天海洋系统有限公司 | Three core high-voltage undersea cable connector boxs of one kind and its installation method |
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