WO2018195890A1 - 接线盒及使用所述接线盒的海上发电系统 - Google Patents

接线盒及使用所述接线盒的海上发电系统 Download PDF

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Publication number
WO2018195890A1
WO2018195890A1 PCT/CN2017/082346 CN2017082346W WO2018195890A1 WO 2018195890 A1 WO2018195890 A1 WO 2018195890A1 CN 2017082346 W CN2017082346 W CN 2017082346W WO 2018195890 A1 WO2018195890 A1 WO 2018195890A1
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WO
WIPO (PCT)
Prior art keywords
cable
connector
junction box
power generation
disk
Prior art date
Application number
PCT/CN2017/082346
Other languages
English (en)
French (fr)
Inventor
薛济萍
葛志校
杨华勇
谢书鸿
郭朝阳
朱宗军
潘盼
Original Assignee
中天海洋系统有限公司
江苏中天科技股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 中天海洋系统有限公司, 江苏中天科技股份有限公司 filed Critical 中天海洋系统有限公司
Priority to PCT/CN2017/082346 priority Critical patent/WO2018195890A1/zh
Priority to EP17907009.9A priority patent/EP3618210B1/en
Publication of WO2018195890A1 publication Critical patent/WO2018195890A1/zh

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G15/00—Cable fittings
    • H02G15/08—Cable junctions
    • H02G15/10—Cable junctions protected by boxes, e.g. by distribution, connection or junction boxes
    • H02G15/16—Cable junctions protected by boxes, e.g. by distribution, connection or junction boxes structurally associated with support for line-connecting terminals within the box
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
    • G02B6/4439—Auxiliary devices
    • G02B6/444—Systems or boxes with surplus lengths
    • G02B6/4441—Boxes
    • G02B6/4448—Electro-optic
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
    • H02G1/06—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for laying cables, e.g. laying apparatus on vehicle
    • H02G1/10—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for laying cables, e.g. laying apparatus on vehicle in or under water
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G15/00—Cable fittings
    • H02G15/08—Cable junctions
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G15/00—Cable fittings
    • H02G15/08—Cable junctions
    • H02G15/10—Cable junctions protected by boxes, e.g. by distribution, connection or junction boxes
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G15/00—Cable fittings
    • H02G15/08—Cable junctions
    • H02G15/10—Cable junctions protected by boxes, e.g. by distribution, connection or junction boxes
    • H02G15/12—Cable junctions protected by boxes, e.g. by distribution, connection or junction boxes for incorporating transformers, loading coils or amplifiers
    • H02G15/14—Cable junctions protected by boxes, e.g. by distribution, connection or junction boxes for incorporating transformers, loading coils or amplifiers specially adapted for submarine cables
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G9/00—Installations of electric cables or lines in or on the ground or water
    • H02G9/12—Installations of electric cables or lines in or on the ground or water supported on or from floats, e.g. in water
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/36—Mechanical coupling means
    • G02B6/38—Mechanical coupling means having fibre to fibre mating means
    • G02B6/3807—Dismountable connectors, i.e. comprising plugs
    • G02B6/3897—Connectors fixed to housings, casing, frames or circuit boards
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
    • G02B6/4401—Optical cables
    • G02B6/4415—Cables for special applications
    • G02B6/4416—Heterogeneous cables
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
    • G02B6/4401—Optical cables
    • G02B6/4415—Cables for special applications
    • G02B6/4427—Pressure resistant cables, e.g. undersea cables
    • G02B6/4428—Penetrator systems in pressure-resistant devices
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/30—Energy from the sea, e.g. using wave energy or salinity gradient

Definitions

  • the present invention relates to a junction box, and more particularly to a junction box suitable for use in marine engineering and an offshore power generation system using the junction box.
  • the present invention provides a junction box having high connection reliability and a power generation system using the junction box.
  • a junction box includes a protective case, an anchoring device, a cable connector, a light unit connection box, a fiber optic connector, and an electrical connector, wherein the cable connector and the optical unit connection box are housed in the protective case,
  • the anchoring device, the fiber optic connector, and the electrical connector are each mounted on the protective casing.
  • the protective cover includes a body and an end cover fixed to the body, the anchoring device is fixed at an end of the body away from the end cover, the cable connector and the light
  • the unit connection box is housed in the body, and the optical fiber connector and the electrical connector are mounted on the end cover.
  • the anchoring device includes a fixing member and two wire passing members connected to the fixing member, the fixing member opening a line passage, and each of the wire passing members is opened and said A wire hole that communicates with the line channel.
  • the fixing component includes a positioning portion, a flange portion connected to one end of the positioning portion, and a connecting portion connected to the other end of the positioning portion, the through-line passage penetrating the positioning a portion, the flange portion, and the connecting portion.
  • connection box further includes a fixing plate received in the protective case and fixed to the end cover of the protective case, the cable connector and the optical unit A splice box is mounted on the fixing plate.
  • the cable connector includes a front joint, a rear joint, a sleeve joint, an intermediate joint, a plug head, and a plug head cover, and the sleeve joint and the intermediate joint respectively It is disposed at both ends of the front joint and connected by a stud bolt, and the intermediate joint and the plugging head are respectively disposed at two ends of the rear joint, and are connected by another stud bolt, and the sealing head back cover is sealed. At the end of the sealing head away from the rear joint.
  • the optical unit connection box includes a disk disk and two fixing members respectively disposed at two ends of the disk disk, and the disk disk includes a disk body and a cover body.
  • the fixing member is used for fixing a cable
  • the disk disk is used for accommodating an optical fiber.
  • the fixing member comprises a fixing head, two sleeves connected to the fixing head, and a sealing member disposed in the sleeve, the fixing head being fixed to the disc body of the disc tray.
  • An offshore power generation system includes a power generation platform and a junction box thereof, wherein an optical cable of the power generation platform is connected to a fiber optic connector of the junction box, and a cable of the power generation platform is connected to the electrical connector, the cable connector Connected to the cable entering from the anchoring device, the light unit connection box is connected to the fiber optic cable entering from the anchoring device.
  • the power generation platform is a wave energy generator.
  • the power generation system of the invention can realize the connection of the power generation platform through the cable and the junction box to form a chain or mesh power generation system, by providing an anchoring device, a cable connector, a light unit connection box, a fiber connector, and an electrical connection.
  • the head, high mechanical performance and sealing performance ensure the electrical performance and sealing performance of the cable in the junction box.
  • FIG. 1 is a schematic view of an offshore power generation system according to an embodiment of the present invention.
  • FIG. 2 is a schematic perspective view showing a junction box of an embodiment of the present invention.
  • FIG. 3 is a schematic view showing the assembly of a part of the junction box shown in FIG. 2.
  • FIG. 4 is an exploded cross-sectional view of a cable connector in accordance with an embodiment of the present invention.
  • Fig. 5 is a side elevational view showing the optical unit connection box according to an embodiment of the present invention.
  • Figure 6 is a cross-sectional view showing a portion of the structure of the optical unit connection box shown in Figure 5.
  • Power system 1 Power generation platform 2 Base station 3 Fixtures 4 Connector 401 Junction Box 5 Cable 6 First cable 601 Second cable 602 Third cable 603 Fourth cable 604 Lifting device 7 Fixing frame 8 Protective case 10 Ontology 11 End cap 13 Reserved hole 131 Anchoring device 20 Fastener twenty one Positioning department 211 Flange 213 Connection 215 Overpass channel 217 First channel 2171 Second channel 2173 Over-line twenty three Wire hole 231 Fixed plate 30 Cable connector 40 Front connector 41 Rear connector 42 Casing interface 43 Intermediate connector 44 Plug head 45 Closing head back cover 46 Stud 47 Stress cone 48 Optical unit connection box 50 Disk tray 51 Disk body 511 Cover 513 Containing space 515 Fixed block 517 Fastener 53 Fixed head 531 Fixed hole 5311 casing 533 Seals 535 The optical fiber connector 60 Electrical connector 70
  • FIG. 1 is a schematic diagram of an offshore power generation system according to an embodiment of the present invention.
  • the power generation system 1 includes at least one power generation platform 2 disposed at sea, a base station 3 disposed on the land, a fixed device 4 disposed at the seabed, at least one junction box 5, and a plurality of cables 6, and the base station 3 includes a substation.
  • the power generation platform 2 is for generating power using marine resources, such as wave energy, and the base station 3 is for changing the voltage of the electricity generated by the power generation platform 2 to deliver the power to other places.
  • the number of power generating platforms 2 shown in FIG. 1 is two.
  • the number of power generating platforms 2 may be one, three or more, correspondingly, the number of junction boxes 5 It is also possible to have one, two or more, and in Fig. 1, two junction boxes 5 are also shown.
  • the plurality of cables 6 are divided into a first cable 601, a second cable 602, a third cable 603, and a fourth cable 604.
  • the first cable 601 is connected to the power generation platform 2 and corresponding
  • the cable of the junction box 5 is a dynamic cable connected between the two junction boxes 5
  • the third cable 603 is a dynamic cable connecting one of the junction box 5 and the fourth cable 604, fourth
  • the cable 604 is a static cable that connects the third cable 603 with the base station 3.
  • the third cable 603 and the fourth cable 604 are connected by a joint 401, and the joint 401 is disposed on the fixing device 4.
  • the fixture 4 is fixed to the seabed on the seabed for positioning the junction of the third cable 603 and the fourth cable 604.
  • the power generation system 1 is a wave power generation system, and accordingly, the power generation platform 2 is a wave energy generator, and the first cable 601 is a cable of a generator.
  • the power generation system 1 is not limited to a wave energy power generation system, and it may also be a power generation system that uses other energy sources on the ocean to generate electricity.
  • the offshore power generation system 1 connects the power generation platforms 2 (i.e., generators) in series to form a chain or mesh power generation system.
  • the power generation system 1 further comprises at least one lifting device 7, which is connected to the power generating platform 2, for example to the generator body, for moving the overall structure.
  • Each junction box 5 is mounted on a lifting device 7.
  • the junction box 5 is fixed to one side of the lifting device 7 by a fixing frame 8, so that the junction box 5 and the lifting device 7 are arranged substantially side by side.
  • the junction box 5 includes a protective case 10, an anchoring device 20, a fixing plate 30, a cable connector 40, a light unit connection box 50, an optical fiber connector 60, and an electrical connector 70.
  • the protective casing 10 is a hollow casing for accommodating the fixing plate 30, the cable connector 40, and the optical unit connection box 50.
  • the anchoring device 20 is mounted at one end of the protective casing 10 for fixing cables (such as the second cable 602 and the third cable 603) and ensuring the mechanical properties and sealing performance of the cable.
  • the fixing plate 30 is fixedly disposed in the protective case 10 for positioning the cable connector 40 and the optical unit connection box 50.
  • the cable connector 40 is fixed to the fixing plate 30 and housed in the protective case 10.
  • the cable connector 40 is a plug-in terminal connector inside the junction box 5 for ensuring power summarization, connection and shielding grounding between the dynamic cable and the power generation platform 2 (generator), and ensuring the power generation platform 2 (generator) Power summary, connection and shield grounding treatment with power generation platform 2 (generator).
  • the optical unit connection box 50 is fixed on the fixed board 30 and housed in the protective case 10 for ensuring the communication between the power generation platform 2, the power generation platform 2 and the base station 3 and the control signal.
  • the optical fiber connector 60 is mounted on the protective casing 10, and a part of the structure passes through the protective casing 10 and is housed in the protective casing 10.
  • the fiber optic connector 60 is an internal communication fiber optic plug connector of the power generation platform 2, and is used for ensuring communication between internal signals of the power generation platform and external control signals.
  • the electrical connector 70 is mounted on the protective casing 10 for ensuring the connection between the internal power of the power generating platform 2 and the junction box. The following is a further description of each component.
  • the protective case 10 has a substantially hollow cylindrical shape.
  • the protective case 10 includes a body 11 and an end cap 13 fixed to the body 11.
  • the main body 11 is a hollow cylinder which is open at both ends, and the end cover 13 has a circular plate shape, is fixed at one end of the body 11, and covers an opening at one end of the body 11.
  • the end cover 13 defines a reserved hole 131 for Glue or oil fill when needed.
  • the anchoring device 20 is fixed to the other end of the body 11 and covers the opening at the other end of the body 11.
  • the anchoring device 20 includes a fixing member 21 and two wire passing members 23 connected to the fixing member 21.
  • the fixing member 21 is substantially disk-shaped and is fixed to the end of the body 11.
  • the fixing member 21 includes a positioning portion 211, a flange portion 213 connected to one end of the positioning portion 211, and a connecting portion 215 connected to the other end of the positioning portion 211.
  • the positioning portion 211, the flange portion 213, and the connecting portion 215 have an integral structure.
  • the positioning portion 211 has a substantially cylindrical shape, and the flange portion 213 is formed to extend radially outward along a peripheral edge of one end of the positioning portion 211.
  • the connecting portion 215 extends along a longitudinal axis of the other end of the positioning portion 211, and the flange portion 213 is substantially
  • the ring portion has a substantially conical shape.
  • the fixing member 21 has a through passage 217 that penetrates the positioning portion 211, the flange portion 213, and the connecting portion 215.
  • the line passage 217 includes a first passage 2171 extending through the positioning portion 211 and the flange portion 213 and two second passages 2173 extending through the connection portion 215.
  • the two second passages 2173 communicate with the first passage 2171 to form an inverted Y-shaped cross. Channel.
  • the diameter of the first passage 2171 is larger than the diameter of the second passage 2173.
  • the line channel 217 is used for cable passage.
  • the two wire passing members 23 are respectively fixed on the connecting portion 215 of the fixing member 21 and correspond to the two second passages 2173.
  • Each of the wire passing members 23 defines a wire passing hole 231, and each of the wire passing holes 231 communicates with the corresponding second channel 2173.
  • two bundles of cables (such as the second cable 602 and the third cable 603) pass through the through hole 231, enter the two second channels 2173, and meet in the first channel 2171. Entering the protective casing 10, and the cable is fixed and sealed by the anchoring device 20 to ensure the mechanical properties and sealing performance of the cable.
  • the shape of the protective casing 10 is not limited to the shape in the present embodiment, and may be, for example, a rectangular parallelepiped, a cube, an irregular shape, or the like.
  • the shape of the anchoring device 20 is not limited to the shape in the present embodiment, and it is only necessary to be able to fix and seal the cable.
  • the fixing plate 30 is connected to the end cover 13 of the protective case 10 and housed in the protective case 10 for positioning the cable connector 40 and the optical unit connection box 50.
  • the fixing plate 30 is disposed perpendicular to the end cover 13 and offset from the center of the protective casing 10.
  • the number of cable connectors 40 is three, each cable connector 40 passes through the fixing plate 30 and is fixed to the fixing plate 30, and the cable connector 40 is used to connect the cables, for example, the second cable 602 and the third cable.
  • the cable in the second cable 602 and the cable in the third cable 603 are respectively inserted into the corresponding cable connectors 40.
  • the second cable 602 includes three cables. And inserted into three cable connectors 40 respectively; the third cable 603 includes three cables and is respectively inserted into the three cable connectors 40.
  • FIG. 4 shows a cable connector 40 of an embodiment.
  • the cable connector 40 includes a front joint 41, a rear joint 42, a sleeve joint 43, an intermediate joint 44, a plug head 45, and a seal.
  • the front joint 41 and the rear joint 42 are substantially T-shaped for inserting the cable, and the front joint 41 and the rear joint 42 are further provided with a stress cone 48 for fixing the cable.
  • the sleeve interface 43 and the intermediate joint 44 are respectively disposed at both ends of the front joint 41, and the sleeve joint 43 and the intermediate joint 44 are connected by a stud bolt 47.
  • the sleeve interface 43 passes through the fixed plate 30.
  • the intermediate connector 44 and the sealing head 45 are respectively disposed at two ends of the rear joint 42 , and the intermediate connector 44 and the sealing head 45 are connected by another stud bolt, and the sealing head back cover 46 is sealed at the sealing head 45 . Keep away from one end of the rear joint 42.
  • the cable connector 40 is used for cable insertion of two bundles of cables, for example, one cable of the second cable 602 is inserted into the front connector 41, and one of the third cables 603 is inserted into the rear connector. Cable connector 40 can also include a lightning arrestor.
  • the number of the light unit connection boxes 50 is at least one and is fixed to the fixing plate 30. In the present embodiment, the number of the optical unit connection boxes 50 is two, one of which is used as a backup. Please refer to FIG. 5 and FIG. 6 simultaneously.
  • FIG. 5 and FIG. 6 show an optical unit connection box according to an embodiment.
  • the optical unit connection box 50 includes a disk disk 51 and two fixing members 53 respectively disposed at two ends of the disk disk 51.
  • the disk tray 51 includes a disk body 511 and a cover 513 that is covered on the disk body 511. In the present embodiment, the disk body 511 has a substantially elliptical cross section and forms a receiving space 515.
  • the cover body 513 has a substantially elliptical plate shape, is covered on the disk body 511, and is fixed to the disk body 511, and covers the receiving space 515.
  • a fixing block 517 for positioning the optical fiber is disposed on the bottom wall of the disk 511.
  • the fixing block 517 can receive and position the optical fiber by opening the receiving groove.
  • the fixing member 53 at both ends of the disk tray 51 is used for the cable to pass through, so that the optical fibers in the cable are fused in the disk to realize signal transmission.
  • the fixing member 53 includes a fixing head 531, two sleeves 533 connected to the fixing head 531, and a seal 535 disposed in the two sleeves 533.
  • the fixing head 531 is fixed to the end of the disk body 511 and defines two fixing holes 5311.
  • the fixing hole 5311 communicates with the receiving space 515.
  • Two sleeves 533 are respectively inserted into the two fixing holes 5311 of the fixing head 531 and fixed to the fixing head 531.
  • a wake-up receiving groove is formed in the inner wall of each sleeve 533, and the sealing member 535 is annular and received in the receiving groove of the sleeve 533.
  • the sleeve 533 is for the cable to pass through and is sealed by a seal 535.
  • the fiber optic connector 60 is mounted on the end cap 13 of the protective casing 10 and partially extends into the protective casing 10.
  • the fiber optic connector 60 can be a connector of the prior art for quick plugging and unplugging the fiber.
  • the electrical connector 70 is also mounted on the end cap 13 of the protective casing 10 and partially extends into the protective casing 10 for accessing the cable.
  • the first cable 601, the second cable 602, and the third cable 603 all include a cable and Cable.
  • the cable of the power generating platform 2 is connected to the electrical connector 70, enters the protective casing 10, and is connected to the cable connector 40.
  • the optical cable of the power generating platform 2 is connected to the optical fiber connector 60 and connected to the optical unit connecting box 50.
  • the second cable 602 and the third cable 603 respectively enter the protective casing 10 from the through hole 231 of the anchoring device 20, and the cable of the second cable 602 and the cable of the third cable 603 are respectively connected to the front connector of the cable connector 40.
  • the cable of the second cable 602 and the third cable 603 are a total of six bundles, and each of the two bundles is respectively connected with a front connector 41 or a rear connector 42 of the cable connector 40, correspondingly
  • the power generation platform 2 has three cables, which are respectively connected to the three cable connectors 40, so that the cables of the power generation platform 2 are electrically connected to the cables of the second cable 602 and the third cable 603, respectively, to ensure the power generation platform. 2 Power transmission with other power generation platforms 2 and base stations 3.
  • the optical cable of the second cable 602 and the optical cable of the third cable 603 are connected to the optical unit connection box 50, and the optical cable of the first cable 601 is welded in the disk reel 51, thereby ensuring the power generation platform 2 and other power generation platforms 2 And signal transmission between the base stations 3.
  • the optical cable of the second cable 602 and the optical cable of the third cable 603 may not be directly connected to the optical cable of the first cable 601, but may be connected to the optical fiber connector 60 and the optical unit connection box 50 through both ends.
  • the optical cable is connected. At this time, the optical cable of the optical cable and the second cable 602 and the optical cable of the third cable 603 are welded in the disk tray 51.
  • the power generation system of the invention can realize the connection of the power generation platform through the cable and the junction box to form a chain or mesh power generation system, by providing an anchoring device, a cable connector, a light unit connection box, a fiber connector, and an electrical connection.
  • the head, high mechanical performance and sealing performance ensure the electrical performance and sealing performance of the cable in the junction box.
  • the junction box of the invention obtains the requirement of satisfying the safety load 5T limit working condition 10T by the tensile test, and has no obvious displacement and slippage after being loaded for 5 minutes after the load of 20T. After the 1 MPa holding pressure 24 h watertight test was carried out on the joint box, no leakage occurred. The experiment was performed by a pressure test of 3.5 U 0 (about 26 kV 5 min).

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Light Guides In General And Applications Therefor (AREA)

Abstract

一种接线盒（5）及包括上述接线盒（5）的发电系统（1），包括保护壳（10）、锚固装置（20）、电缆连接器（40）、光单元接续盒（50）、光纤连接器（60）、及电气连接头（70），所述电缆连接器（40）与所述光单元接续盒（50）收容在所述保护壳（10）内，所述锚固装置（20）、所述光纤连接器（60）及所述电气连接头（70）均安装在所述保护壳（10）上，通过设置锚固装置（20）、电缆连接器（40）、光单元接续盒（50）、光纤连接器（60）、及电气连接头（70），机械性能和密封性能高，保证接线盒（5）中线缆的电气性能和密封性能。

Description

接线盒及使用所述接线盒的海上发电系统 技术领域
本发明涉及一种接线盒，尤其涉及一种适用于海洋工程中的接线盒及使用所述接线盒的海上发电系统。
背景技术
随着对能源需求日益增加，海洋油气、波浪能、动态平台等开发的力度也迅猛加大。移动式海上发电平台作为一种能源供给形式，在未来新式能源利用中扮演着重要角色，例如波浪能发电，其为利用海上潮汐能进行发电。由于长期在海上运作，环境较特殊，现有的接线盒难以为海上发电的线缆提供可靠地连接，导致难以保证电气性能及水密性能等。
发明内容
为解决上述技术问题，本发明提供一种连接可靠性高的接线盒以及使用所述接线盒的发电系统。
一种接线盒，包括保护壳、锚固装置、电缆连接器、光单元接续盒、光纤连接器、及电气连接头，所述电缆连接器与所述光单元接续盒收容在所述保护壳内，所述锚固装置、所述光纤连接器及所述电气连接头均安装在所述保护壳上。
作为一种可选的方案，所述保护壳包括本体及与所述本体固定的端盖，所述锚固装置固定在所述本体远离所述端盖的一端，所述电缆连接器及所述光单元接续盒收容在所述本体内，所述光纤连接器及所述电气连接头安装在所述端盖上。
作为一种可选的方案，所述锚固装置包括固定件和与所述固定件连接的两个过线件，所述固定件开设过线通道，每一所述过线件开设与所述过线通道连通的过线孔。
作为一种可选的方案，所述固定件包括定位部、与所述定位部一端连接的凸缘部、及与所述定位部另一端连接的连接部，所述过线通道贯穿所述定位部、所述凸缘部及所述连接部。
作为一种可选的方案，所述接续盒还包括固定板，所述固定板收容在所述保护壳内，并与所述保护壳的端盖固定，所述电缆连接器与所述光单元接续盒安装在所述固定板上。
作为一种可选的方案，所述电缆连接器包括前接头、后接头、套管接口、中间连接头、封堵头、及封堵头后盖，所述套管接口和所述中间接头分别设置在前接头的两端，并通过一个双头螺栓连接，所述中间连接头与封堵头分别设置在后接头的两端，并通过另一个双头螺栓连接，封堵头后盖封堵在封堵头远离后接头的一端。
作为一种可选的方案，所述光单元接续盒包括盘纤盘及分别设置在所述盘纤盘两端的两个固接件，所述盘纤盘包括盘体及盖在所述盘体上的盖体，所述固接件用于固定线缆，所述盘纤盘用于收容光纤。
作为一种可选的方案，所述固接件包括固定头、与固定头连接的两个套管及设置在套管内的密封件，所述固定头与所述盘纤盘的盘体固定。
一种海上发电系统，包括发电平台及上述接线盒，所述发电平台的光缆与所述接线盒的光纤连接器连接，所述发电平台的电缆与所述电气连接头连接，所述电缆连接器与从锚固装置进入的电缆连接，所述光单元接续盒与从锚固装置进入的光缆连接。
作为一种可选的方案，所述发电平台为波浪能发电机。
本发明的发电系统，可以实现将发电平台通过线缆和接线盒串联起来，形成链式或网状发电系统，通过设置锚固装置、电缆连接器、光单元接续盒、光纤连接器、及电气连接头，机械性能和密封性能高，保证接线盒中线缆的电气性能和密封性能。
 附图说明
为了更清楚地说明本发明实施方式或现有技术中的技术方案，下面将对实施方式或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施方式，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1是本发明一实施方式的海上发电系统的示意图。
图2是本发明一实施方式的接线盒的立体结构示意图。
图3是图2所示接线盒的部分结构组装示意图。
图4是本发明一实施方式的电缆连接器的分解剖视图。
图5是本发明一实施方式的光单元接续盒的侧视示意图。
图6是图5所示光单元接续盒的部分结构剖视示意图。
主要元件符号说明
发电系统 1
发电平台 2
基站 3
固定装置 4
接头 401
接线盒 5
线缆 6
第一线缆 601
第二线缆 602
第三线缆 603
第四线缆 604
提升装置 7
固定架 8
保护壳 10
本体 11
端盖 13
预留孔 131
锚固装置 20
固定件 21
定位部 211
凸缘部 213
连接部 215
过线通道 217
第一通道 2171
第二通道 2173
过线件 23
过线孔 231
固定板 30
电缆连接器 40
前接头 41
后接头 42
套管接口 43
中间连接头 44
封堵头 45
封堵头后盖 46
双头螺栓 47
应力锥 48
光单元接续盒 50
盘纤盘 51
盘体 511
盖体 513
收容空间 515
固定块 517
固接件 53
固定头 531
固定孔 5311
套管 533
密封件 535
光纤连接器 60
电气连接头 70
如下具体实施方式将结合上述附图进一步说明本发明。
具体实施方式
下面将结合本发明实施方式中的附图，对本发明实施方式中的技术方案进行清楚、完整地描述，显然，所描述的实施方式仅仅是本发明一部分实施方式，而不是全部的实施方式。基于本发明中的实施方式，本领域普通技术人员在没有付出创造性劳动前提下所获得的所有其他实施方式，都属于本发明保护的范围。
需要说明的是，在本发明实施方式中使用的术语是仅仅出于描述特定实施方式的目的，而非旨在限制本发明。在本发明实施方式和所附权利要求书中所使用的单数形式的“一种”、“所述”和“该”也旨在包括多数形式，除非上下文清楚地表示其他含义。还应当理解，本文中使用的术语“和/或”是指并包含一个或多个相关联的列出项目的任何或所有可能组合。另外，本发明的说明书和权利要求书及上述附图中的术语“第一”、“第二”等是用于区别不同对象，而不是用于描述特定顺序。此外，术语“包括”和“具有”以及它们任何变形，意图在于覆盖不排他的包含。例如包含了一系列步骤或单元的过程、方法、系统、产品或设备没有限定于已列出的步骤或单元，而是可选地还包括没有列出的步骤或单元，或可选地还包括对于这些过程、方法、产品或设备固有的其它步骤或单元。
请参阅图1，图1为本发明一实施方式提供的一种海上发电系统的示意图。发电系统1包括设在海上的至少一个发电平台2、设在陆地的基站3、设在海底的固定装置4、至少一个接线盒5、及若干线缆6，基站3包括变电站。发电平台2用于利用海洋资源进行发电，例如波浪能，基站3用于改变发电平台2发的电的电压，以将电能输送到其他地方。在本实施方式中，图1中示出的发电平台2为两个，在其他实施方式中，发电平台2的数量可为一个、三个或三个以上，相对应的，接线盒5的数量也可为一个、两个或两个以上，在图1中，同样示出两个接线盒5。为方便描述和理解，将若干线缆6区分为第一线缆601、第二线缆602、第三线缆603、第四线缆604，第一线缆601为连接发电平台2与对应的接线盒5的线缆，第二线缆602为连在两个接线盒5之间的动态缆，第三线缆603为连接其中一个接线盒5与第四线缆604的动态缆，第四线缆604为连接第三线缆603与基站3的静态缆。在本实施方中，第三线缆603与第四线缆604通过一个接头401连接，且接头401设置在固定装置4上。固定装置4固定在海底的海床上，用于定位第三线缆603与第四线缆604的连接处。在本实施方式中，发电系统1为波浪能发电系统，相应地，发电平台2为波浪能发电机，第一线缆601为发电机的线缆。在其他实施方式中，发电系统1不限定为波浪能发电系统，其也可为利用海洋上的其他能源发电的发电系统。本实施方式中海上发电系统1，将各发电平台2（即发电机）串联起来，形成链式或网状的发电系统。
发电系统1还包括至少一个提升装置7，其与发电平台2连接，例如与发电机本体连接，用于移动整体结构。每一接线盒5装设在一提升装置7上。在本实施方式中，接线盒5通过一个固定架8固定在提升装置7的一侧，使得接线盒5与提升装置7大致并排设置。
请同时参阅图2和图3，接线盒5包括保护壳10、锚固装置20、固定板30、电缆连接器40、光单元接续盒50、光纤连接器60、及电气连接头70。保护壳10为中空壳体，用于收容固定板30、电缆连接器40、及光单元接续盒50。锚固装置20装设在保护壳10的一端，用于固定线缆（如第二线缆602和第三线缆603），及保证线缆的机械性能及密封性能。固定板30固定设置在保护壳10内，用于定位电缆连接器40和光单元接续盒50。电缆连接器40固定在固定板30上，并收容在保护壳10中。电缆连接器40是接线盒5内部的插拔式终端接头，用于保证动态缆与发电平台2（发电机）之间的电力汇总、接续及屏蔽接地处理，以及保证发电平台2（发电机）与发电平台2（发电机）之间的电力汇总、接续及屏蔽接地处理。光单元接续盒50固定在固定板30上，并收容在保护壳10中，用于保证发电平台2之间、发电平台2与基站3之间的通讯与控制信号的接续。光纤连接器60装设在保护壳10上，且部分结构穿过保护壳10并收容在保护壳10中。光纤连接器60为发电平台2内部通信光纤插拔连接器，用于保证发电平台内部信号与外界控制信号通信。电气连接头70装设在保护壳10上，用于保证发电平台2内部电力与接线盒的接续。以下为对各部件进行进一步描述。
在本实施方式中，保护壳10的形状大致呈中空圆筒状。保护壳10包括本体11及与本体11固定的端盖13。本体11为两端开口的中空圆筒，端盖13呈圆形板状，固定在本体11的一端，并封盖本体11一端的开口，端盖13上开设一个预留孔131，用于在需要时灌胶或充油。锚固装置20固定在本体11的另一端，并封盖本体11另一端的开口，具体地，锚固装置20包括固定件21和与固定件21连接的两个过线件23。固定件21大致呈圆盘状，其固定在本体11的端部。固定件21包括定位部211、与定位部211一端连接的凸缘部213、及与定位部211另一端连接的连接部215。在本实施方式中，定位部211、凸缘部213及连接部215为一体结构。定位部211大致呈圆筒形，凸缘部213沿定位部211一端的周缘向外径向延伸形成，连接部215沿定位部211另一端的周缘向纵轴线延伸形成，凸缘部213大致呈圆环形，连接部215大致呈圆锥形。固定件21开设贯穿定位部211、凸缘部213及连接部215的过线通道217。过线通道217包括贯穿定位部211与凸缘部213的第一通道2171及贯穿连接部215的两个第二通道2173，两个第二通道2173与第一通道2171连通，形成倒Y形交叉的通道。第一通道2171的直径大于第二通道2173的直径。过线通道217用于供线缆通过。
两个过线件23分别固定在固定件21的连接部215上，并对应两个第二通道2173。每个过线件23开设一个过线孔231，每个过线孔231与对应的第二通道2173连通。在本实施方式中，两束线缆（如第二线缆602和第三线缆603）分别从过线孔231穿过，进入两个第二通道2173，并在第一通道2171中会合，进入保护壳10内，且线缆通过锚固装置20固定及密封，以保证线缆的机械性能和密封性能。在其他实施方式中，保护壳10的形状不限定于本实施方式中的形状，例如可以是长方体、立方体、不规则形状等。在其他实施方式中，锚固装置20的形状也可不限定于本实施方式中的形状，只需能够固定及密封线缆即可。
固定板30与保护壳10的端盖13连接，并收容在保护壳10内，用于定位电缆连接器40和光单元接续盒50。在本实施方式中，固定板30与端盖13垂直设置，并偏离保护壳10的中心。电缆连接器40的数量为三个，每个电缆连接器40穿过固定板30，并固定在固定板30上，电缆连接器40用于连接电缆，例如第二线缆602与第三线缆603穿过锚固装置20后，第二线缆602中的电缆与第三线缆603中的电缆分别插入对应的电缆连接器40中，在本实施方式中，第二线缆602包括三根电缆，且分别插入三个电缆连接器40中；第三线缆603包括三根电缆，且分别插入三个电缆连接器40中。
请同时参阅图4，图4示出了一种实施方式的电缆连接器40，电缆连接器40包括前接头41、后接头42、套管接口43、中间连接头44、封堵头45、封堵头后盖46、及两个双头螺栓47。前接头41和后接头42大致呈T形，用于插入电缆，前接头41与后接头42上还设置应力锥48，用于固定电缆。套管接口43和中间连接头44分别设置在前接头41的两端，并通过一个双头螺栓47连接套管接口43与中间连接头44。套管接口43穿过固定板30。中间连接头44与封堵头45分别设置在后接头42的两端，且通过另一个双头螺栓连接中间连接头44与封堵头45，封堵头后盖46封堵在封堵头45远离后接头42的一端。电缆连接器40用于供两束线缆的电缆插入，例如第二线缆602中的一根电缆插入前接头41，第三线缆603中的一根电缆插入后接头。电缆连接器40还可包括避雷器。
光单元接续盒50的数量为至少一个，且固定在固定板30上。在本实施方式中，光单元接续盒50的数量为两个，其中一个作为备用。请同时参阅图5及图6，图5及图6示出了一种实施方式的光单元接续盒。光单元接续盒50包括盘纤盘51及分别设置在盘纤盘51两端的两个固接件53。盘纤盘51包括盘体511及盖在盘体511上的盖体513。在本实施方式中，盘体511的横截面大致呈椭圆形，并形成收容空间515。盖体513大致呈椭圆形板状，盖在盘体511上，并与盘体511固定，且封盖收容空间515。盘体511的底壁上设置有定位光纤用的固定块517，固定块517可通过开设收容槽的方式收容及定位光纤。盘纤盘51两端的固接件53用于供光缆穿过，以使得光缆中的光纤在盘纤盘中熔接，实现信号传输。固接件53包括固定头531、与固定头531连接的两个套管533及设置在两个套管533内的密封件535。固定头531固定在盘体511的端部，并开设两个固定孔5311，固定孔5311与收容空间515连通。两个套管533分别插在固定头531的两个固定孔5311中，并与固定头531固定。每个套管533的内壁上开设唤醒的收容槽，密封件535环状，收容在套管533的收容槽内。套管533供线缆穿过，并通过密封件535密封。
光纤连接器60安装在保护壳10的端盖13上，且部分伸入保护壳10内。光纤连接器60可为现有结构的连接器，用于快速插拔连接光纤。电气连接头70同样安装在保护壳10的端盖13上，且部分伸入保护壳10，用于接入电缆。
以图1中连接第一线缆601、第二线缆602及第三线缆603的接线盒5为例，第一线缆601、第二线缆602及第三线缆603都包括电缆和光缆。发电平台2的电缆连接电气连接头70，进入保护壳10，并与电缆连接器40连接，发电平台2的光缆连接光纤连接器60，并与光单元接续盒50连接。第二线缆602和第三线缆603分别从锚固装置20的过线孔231进入保护壳10，第二线缆602的电缆与第三线缆603的电缆分别连接电缆连接器40的前接头41或后接头42，在本实施方式中，第二线缆602与第三线缆603的电缆共为六束，每两束分别连接一个电缆连接器40的前接头41或后接头42，相应地，发电平台2的电缆为三束，分别与三个电缆连接器40连接，从而实现发电平台2的电缆分别与第二线缆602的电缆及第三线缆603电缆电连接，保证发电平台2与其他发电平台2及基站3之间的电力传输。第二线缆602的光缆及第三线缆603的光缆与光单元接续盒50连接，且与第一线缆601的光缆在盘纤盘51中熔接，从而保证发电平台2与其他发电平台2及基站3之间的信号传输。在其他实施方式中，第二线缆602的光缆及第三线缆603的光缆可不与第一线缆601的光缆直接连接，而是通过两端连接在光纤连接器60和光单元接续盒50的光缆连接，此时在盘纤盘51内熔接此光缆与第二线缆602的光缆及第三线缆603的光缆。
本发明的发电系统，可以实现将发电平台通过线缆和接线盒串联起来，形成链式或网状发电系统，通过设置锚固装置、电缆连接器、光单元接续盒、光纤连接器、及电气连接头，机械性能和密封性能高，保证接线盒中线缆的电气性能和密封性能。本发明的接线盒，通过拉力试验，得到其满足安全载荷5T极限工况10T的要求，并在载荷20T后保载5min无明显位移和滑脱现象。对接续盒进行1MPa保压24h水密试验后，未出现渗漏现象。通过耐压实验加压3.5U0（约26kV5min）实验。
本申请的说明书和权利要求中，词语“包括/包含”和词语“具有/包括”及其变形，用于指定所陈述的特征、数值步骤或部件的存在，但不排除存在或添加一个或多个其它特征、数值、步骤、件或它们的组合。
为清楚起见，本发明在单独实施例中所描述的某些特征，可以组合在单个实施例中使用。而且，在单个实施例中描述的本发明的各种特征，也可以在单独地或以任何合适形式在子组合中使用。
以上所述仅为本发明的较佳实施例而已，并不用以限制本发明，凡在本发明的精神和原则之内所作的任何修改、等同替换和改进等，均应包含在本发明的保护范围之内。

Claims (10)

  1. 一种接线盒，包括保护壳，其特征在于：所述接线盒还包括锚固装置、电缆连接器、光单元接续盒、光纤连接器、及电气连接头，所述电缆连接器与所述光单元接续盒收容在所述保护壳内，所述锚固装置、所述光纤连接器及所述电气连接头均安装在所述保护壳上。
  2. 如权利要求1所述的接线盒，其特征在于：所述保护壳包括本体及与所述本体固定的端盖，所述锚固装置固定在所述本体远离所述端盖的一端，所述电缆连接器及所述光单元接续盒收容在所述本体内，所述光纤连接器及所述电气连接头安装在所述端盖上。
  3. 如权利要求1或2所述的接线盒，其特征在于：所述锚固装置包括固定件和与所述固定件连接的两个过线件，所述固定件开设过线通道，每一所述过线件开设与所述过线通道连通的过线孔。
  4. 如权利要求3所述的接线盒，其特征在于：所述固定件包括定位部、与所述定位部一端连接的凸缘部、及与所述定位部另一端连接的连接部，所述过线通道贯穿所述定位部、所述凸缘部及所述连接部。
  5. 如权利要求2所述的接线盒，其特征在于：所述接续盒还包括固定板，所述固定板收容在所述保护壳内，并与所述保护壳的端盖固定，所述电缆连接器与所述光单元接续盒安装在所述固定板上。
  6. 如权利要求1或5所述的接线盒，其特征在于：所述电缆连接器包括前接头、后接头、套管接口、中间连接头、封堵头、及封堵头后盖，所述套管接口和所述中间接头分别设置在前接头的两端，并通过一个双头螺栓连接，所述中间连接头与封堵头分别设置在后接头的两端，并通过另一个双头螺栓连接，封堵头后盖封堵在封堵头远离后接头的一端。
  7. 如权利要求1或5所述的接线盒，其特征在于：所述光单元接续盒包括盘纤盘及分别设置在所述盘纤盘两端的两个固接件，所述盘纤盘包括盘体及盖在所述盘体上的盖体，所述固接件用于固定线缆，所述盘纤盘用于收容光纤。
  8. 如权利要求7所述的接线盒，其特征在于：所述固接件包括固定头、与固定头连接的两个套管及设置在套管内的密封件，所述固定头与所述盘纤盘的盘体固定。
  9. 一种海上发电系统，其特征在于，所述海上发电系统包括发电平台及如权利要求1-8中任一项所述的接线盒，所述发电平台的光缆与所述接线盒的光纤连接器连接，所述发电平台的电缆与所述电气连接头连接，所述电缆连接器与从锚固装置进入的电缆连接，所述光单元接续盒与从锚固装置进入的光缆连接。
  10. 如权利要求9所述的海上发电系统，其特征在于：所述发电平台为波浪能发电机。
PCT/CN2017/082346 2017-04-28 2017-04-28 接线盒及使用所述接线盒的海上发电系统 WO2018195890A1 (zh)

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