WO2021098363A1 - 一种供海底设备使用的远端接地电极结构 - Google Patents

一种供海底设备使用的远端接地电极结构 Download PDF

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Publication number
WO2021098363A1
WO2021098363A1 PCT/CN2020/115867 CN2020115867W WO2021098363A1 WO 2021098363 A1 WO2021098363 A1 WO 2021098363A1 CN 2020115867 W CN2020115867 W CN 2020115867W WO 2021098363 A1 WO2021098363 A1 WO 2021098363A1
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Prior art keywords
electrode
cable
photoelectric composite
grounding
composite cable
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PCT/CN2020/115867
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English (en)
French (fr)
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孙健
杨成
周亮亮
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烽火海洋网络设备有限公司
烽火通信科技股份有限公司
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Publication of WO2021098363A1 publication Critical patent/WO2021098363A1/zh

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/46—Bases; Cases
    • H01R13/52—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
    • H01R13/523—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases for use under water
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/46—Bases; Cases
    • H01R13/52—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
    • H01R13/5202—Sealing means between parts of housing or between housing part and a wall, e.g. sealing rings
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/46—Bases; Cases
    • H01R13/52—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
    • H01R13/5219—Sealing means between coupling parts, e.g. interfacial seal
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
    • H01R13/639—Additional means for holding or locking coupling parts together, after engagement, e.g. separate keylock, retainer strap
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/58—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation characterised by the form or material of the contacting members
    • H01R4/66—Connections with the terrestrial mass, e.g. earth plate, earth pin

Definitions

  • the invention relates to the field of submarine communication and submarine observation, in particular to a remote ground electrode structure for submarine equipment.
  • the ocean contains abundant resources.
  • the seabed observation network needs to be used. Therefore, the research on the seabed exploration network is particularly important.
  • the traditional submarine observation network is a submarine observation network with a loop at the end.
  • the submarine observation network system has only one shore-side ground electrode, and the end of the system must be in contact with seawater to form a current loop.
  • the submarine photoelectric composite cable is used
  • the feed copper skin and sea water are used as power transmission loops, and the main role in the sea water conduction process is the ground electrode.
  • the ground electrode far away from the beach and in the seawater is called the remote ground electrode.
  • the remote ground electrode is usually connected by a submarine cable, and a submarine cable is extended from the submarine photoelectric composite cable drawn from the submarine equipment , Install a connecting terminal at the end of the extended submarine cable to form a remote ground electrode.
  • the remote grounding electrode formed in this way is suspended on the submarine photoelectric composite cable, which is easy to slosh in seawater, and its sealing and structural stability will be affected, which will directly affect the electrochemical corrosion rate of the reverse grounding electrode, and then As a result, the service life of the ground electrode is short, and this installation method will also cause a lot of inconvenience in construction and protection.
  • the purpose of the present invention is to provide a remote ground electrode structure for subsea equipment, which has good sealing and stability, can effectively reduce the electrochemical corrosion rate of the ground electrode, and increase the electrode Life.
  • a remote ground electrode structure for subsea equipment including:
  • An electrode body which is sleeved on the submarine photoelectric composite cable, and the electrode body has a receiving cavity, and the electrode body is provided with a cover plate;
  • the grounding cable is arranged on the submarine photoelectric composite cable, the grounding cable extends into the receiving cavity, the end of the grounding cable is connected to a terminal, and the grounding cable, the cover plate and the receiving cavity form a A sealed cavity for accommodating the wiring terminal;
  • a locking structure is arranged between the submarine photoelectric composite cable and the electrode main body, and the locking structure locks the submarine photoelectric composite cable and the electrode main body.
  • the remote ground electrode structure for subsea equipment further includes:
  • Two buffer sleeves are sleeved on the submarine photoelectric composite cable, and the two buffer sleeves are respectively connected to two sides of the electrode main body.
  • the buffer sleeve and the electrode body are threadedly connected.
  • the buffer sleeve has a hollow cone shape, and the diameter of the buffer sleeve away from the electrode body is approximately the same as the diameter of the submarine photoelectric composite cable.
  • the locking structure includes:
  • An annular bushing which is sleeved between the submarine photoelectric composite cable and the electrode body;
  • At least one set screw is penetrated on the electrode main body and abuts on the bushing to fix the electrode main body and the submarine photoelectric composite cable.
  • the locking structure further includes:
  • a ring-shaped abutting part which is sleeved between the submarine photoelectric composite cable and the electrode body, and the abutting part and the electrode body are threadedly connected, and the side of the abutting part abuts and fixes the bushing .
  • the locking structure includes the same number of set screws as the threaded holes, and the set screws are threaded through the electrode body.
  • the bush is formed by combining two symmetrical semicircular ring structures.
  • a protective sheath is provided on the submarine photoelectric composite cable and the grounding cable.
  • the remote grounding electrode structure for subsea equipment further includes a compression screw for connecting the electrode body and the connection terminal.
  • the grounding cable is spirally wound on the submarine photoelectric composite cable.
  • the electrode body, the connection terminal, and the cover plate are made of metal structures of the same material.
  • the resisting portion and the bushing are non-metallic.
  • the advantages of the present invention are: the remote grounding electrode structure for subsea equipment of the present invention has better sealing and stability, can effectively reduce the electrochemical corrosion rate of the ground electrode, and increase the electrode Service life.
  • Figure 1 is a schematic diagram of the structure of the seabed observation network in the background technology
  • FIG. 2 is a perspective schematic diagram of a remote ground electrode structure for subsea equipment in an embodiment of the present invention
  • Figure 3 is an axial cross-sectional view of a remote ground electrode structure for subsea equipment in an embodiment of the present invention
  • Fig. 4 is a radial cross-sectional view of a remote ground electrode structure for subsea equipment in an embodiment of the present invention.
  • the remote ground electrode is fixed on the submarine photoelectric composite cable 1 at a distance of 10 to 20 meters from the subsea equipment, and is connected to the ground cable 3 from the subsea equipment. Because the remote ground electrode keeps a certain distance from the subsea equipment Therefore, it is possible to effectively prevent the gas generated during corrosion from affecting the performance of the subsea equipment. At the same time, attention should be paid to the tightness of the penetration structure of the ground cable 3 leading from the subsea equipment.
  • embodiments of the present invention provide a remote grounding electrode structure for subsea equipment, including a subsea photoelectric composite cable 1, electrode body 2, grounding cable 3, and a locking structure connected to the subsea equipment 5.
  • the electrode body 2 is sleeved on the submarine photoelectric composite cable 1, and the electrode body 2 has a receiving cavity, and the electrode body 2 is provided with a cover plate 22;
  • the ground cable 3 is provided on the submarine photoelectric composite cable 1 Above, the grounding cable 3 extends into the receiving cavity, the end of the grounding cable 3 is connected to a terminal 4, and the grounding cable 3, the cover plate 22 and the receiving cavity form a space for receiving the terminal 4
  • the sealing cavity; the locking structure 5 is provided between the submarine photoelectric composite cable 1 and the electrode body 2, and the locking structure 5 locks the submarine photoelectric composite cable 1 and the electrode body 2.
  • the electrode body 2 has a hollow cylindrical shape, and a through hole is provided in the middle, and the subsea photoelectric composite cable 1 passes through the through hole, so that the electrode body 2 is sleeved on the subsea photoelectric On the composite cable 1, the aperture size of the through hole is determined according to the diameter of the submarine photoelectric composite cable 1 in practical applications.
  • the remote ground electrode structure for subsea equipment further includes: two buffer sleeves 6, which are sleeved on the submarine photoelectric composite cable 1, and the two buffer sleeves 6 respectively connect the two sides of the electrode body 2.
  • the buffer sleeve 6 and the electrode main body 2 are threaded to facilitate assembly and disassembly; and the buffer sleeve 6 is made of polyurethane.
  • the buffer sleeve 6 is in the shape of a hollow cone, and the diameter of the buffer sleeve 6 on the side away from the electrode body 2 is approximately the same as the diameter of the submarine photoelectric composite cable 1, so that the buffer sleeve 6 and the electrode
  • the main body 2 forms a relatively sealed cavity to reduce the ingress of seawater, thereby improving the stability of the remote ground electrode structure.
  • the locking structure 5 includes an annular bushing 51, at least one set screw 52 and an annular resisting portion 53.
  • the bushing 51 is sleeved between the submarine photoelectric composite cable 1 and the electrode main body 2; the tightening screw 52 is passed through the electrode main body 2 and is held against the bushing 51 so that the electrode
  • the main body 2 is fixed to the submarine optoelectronic composite cable 1; the resisting portion 53 is sleeved between the submarine optoelectronic composite cable 1 and the electrode main body 2, and the side surface of the resisting portion 53 resists and fixes the bushing 51.
  • the resisting portion 53 and the bushing 51 are made of non-metallic materials, and the bushing 51 is composed of two symmetrical semicircular ring structures. It is more convenient, less difficult to construct, and more practical.
  • the inner diameter surface of the bushing 51 in contact with the submarine optoelectronic composite cable 1 is processed with serrations, which can increase the friction between the bushing 51 and the submarine optoelectronic composite cable 1, so that the submarine optoelectronic composite cable 1 and the electrode body 2 can pass through The bushing 51 is fixed more firmly.
  • the electrode body 2 is provided with a number of threaded holes on the side surface
  • the locking structure 5 includes the same number of set screws 52 as the number of threaded holes, and the set screws 52 are threaded through the electrode body 2.
  • the electrode body 2, the connection terminal 4, the cover 22, the compression screw 8, and the fastening screw 52 are made of the same material, and titanium or titanium alloy is used to prevent electrochemical corrosion between different metals in seawater.
  • the resisting portion 53 is threadedly connected to the electrode main body 2, and the resisting portion 53 is provided with a number of grooves on the end face away from the bushing 51.
  • the grooves are matched with the tooling, and the resisting portion 53 is tightened by the grooves.
  • the bushing 51 is prevented from slipping on the submarine optoelectronic composite cable 1 by the resisting portion 53, so that the electrode body 2 is firmly installed on the submarine optoelectronic composite cable 1.
  • both the submarine photoelectric composite cable 1 and the grounding cable 3 are provided with a layer of protective sheath 7, and the material of the protective sheath 7 is LDPE.
  • the grounding cable 3 is spirally wound on the submarine photoelectric composite cable 1, which is a key process during product assembly, which can make the entire remote grounding electrode structure stronger.
  • the remote grounding electrode structure for subsea equipment also includes a compression screw 8 for connecting the electrode body 2 and the terminal 4, and the terminal 4 is installed on the ground cable 3, and then used
  • the pressing screw 8 fixes the terminal 4 on the electrode body 2 to prevent the terminal 4 from shaking, thereby making the structure more stable.
  • the cover plate 22 and the electrode main body 2 are connected by screws, and several screws are used to fix the cover plate 22 on the electrode main body 2, which is easy to operate.
  • the base material of the electrode body 2, the connecting terminal 4 and the set screw 52 are all TA2, and the surface of TA2 is treated with MMO coating, by calculating the working current of the subsea equipment and the electrode body 2.
  • the surface area and other parameters can theoretically ensure that the electrode body 2 can withstand corrosion consumption for more than 25 years.
  • the connection terminal 4 and the ground cable 3 are watertight at the connection through an injection molding process, and the injection molding material used in the injection molding process is polyethylene.
  • the installation steps of the remote ground electrode structure for subsea equipment include:
  • S4 Cover the cover plate 22, and fix the cover plate 22 on the electrode body 2 with a number of screws;
  • the working principle of the remote grounding electrode structure of the embodiment of the present invention is: in application, the electrode body 2 is a main conductive and corrosion-resistant structural member, and the electrode body 2 is sheathed on the submarine photoelectric composite cable 1 and passes through the locking structure 5. Fasten the electrode main body 2 on the submarine photoelectric composite cable 1 to prevent the electrode main 2 from moving.
  • the connection terminal 4 is connected and fixed to the ground cable 3, and the ground cable 3 is connected to the electrode main body 2 through the connection terminal 4 Electric conduction.
  • the grounding cable 3, the cover plate 22 and the receiving cavity form a sealed cavity for receiving the terminal 4, which has good sealing performance.
  • the structure of the entire remote ground electrode is relatively stable, thereby sealing the connection terminal 4, which can effectively reduce the electrochemical corrosion rate of the ground electrode and increase the service life of the electrode.

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Abstract

一种供海底设备使用的远端接地电极结构，涉及海底通信及海底观测领域，包括与海底设备相连的海底光电复合缆（1）、电极主体（2）、接地电缆（3）以及一锁紧结构（5），电极主体套设于海底光电复合缆上，且电极主体具有一收容腔，电极主体上设有一盖板（22）；接地电缆设于海底光电复合缆上，接地电缆延伸至收容腔内，接地电缆末端连接一接线端子（4），且接地电缆、盖板和收容腔形成一可供收容接线端子的密封腔；锁紧结构设于海底光电复合缆和电极主体之间，锁紧结构锁紧海底光电复合缆和电极主体。该远端接地电极结构密封性和稳固性较好，可有效降低接地电极的电化学腐蚀速率，增加电极的使用寿命。

Description

一种供海底设备使用的远端接地电极结构 技术领域
本发明涉及海底通信及海底观测领域，具体涉及一种供海底设备使用的远端接地电极结构。
背景技术
海洋蕴含资源丰富，在开发和利用海洋资源时，需要使用到海底观测网，因此，对海底探测网的研究显得尤为重要。
参见图1所示，传统的海底观测网为末端环回的海底观测网，该海底观测网系统仅有一个岸端接地电极，系统的末端必须与海水接触形成电流回路，利用海底光电复合缆中的馈电铜皮层和海水作为输电回路，海水导电过程中起主要作用的是接地电极。
现有技术中，对于远离岸滩且在海水中的接地电极称为远端接地电极，远端接地电极通常采用海缆连接，在从海底设备引出的海底光电复合缆上伸出一条海缆，在伸出的海缆末端安装连接端子，形成远端接地电极。该种方式形成的远端接地电极是悬挂在海底光电复合缆上，在海水中容易晃动，密封性和结构稳固性均会有所影响，将会直接影响倒接地电极的电化学腐蚀速率，进而导致接地电极的使用寿命短，而且该种安装方式也会使得在施工和保护等方面带来诸多不便。
发明内容
针对现有技术中存在的缺陷，本发明的目的在于提供一种供海底设备使用的远端接地电极结构，密封性和稳固性均较好，可有效降低 接地电极的电化学腐蚀速率，增加电极的使用寿命。
为达到以上目的，本发明采取的技术方案是：
一种供海底设备使用的远端接地电极结构，包括：
与海底设备相连的海底光电复合缆；
电极主体，其套设于所述海底光电复合缆上，且所述电极主体具有一收容腔，所述电极主体上设有一盖板；
接地电缆，其设于所述海底光电复合缆上，所述接地电缆延伸至所述收容腔内，所述接地电缆末端连接一接线端子，且所述接地电缆、盖板和收容腔形成一可供收容所述接线端子的密封腔；
一锁紧结构，其设于所述海底光电复合缆和电极主体之间，且所述锁紧结构锁紧所述海底光电复合缆和电极主体。
在上述技术方案的基础上，所述供海底设备使用的远端接地电极结构还包括：
两个缓冲套，其套设于所述海底光电复合缆上，且两个所述缓冲套分别连接所述电极主体的两侧。
在上述技术方案的基础上，所述缓冲套和电极主体螺纹连接。
在上述技术方案的基础上，所述缓冲套为空心圆锥状，所述缓冲套远离所述电极主体一侧的口径与所述海底光电复合缆的直径大致相同。
在上述技术方案的基础上，所述锁紧结构包括：
一环形的衬套，其套设在所述海底光电复合缆和电极主体之间；
至少一紧定螺钉，其穿设在所述电极主体上，且抵持在所述衬套上，以使所述电极主体和海底光电复合缆固定。
在上述技术方案的基础上，所述锁紧结构还包括：
一环形的抵持部，其套设在所述海底光电复合缆和电极主体之 间，且所述抵持部和电极主体螺纹连接，所述抵持部的侧面抵持并固定所述衬套。
在上述技术方案的基础上，所述电极主体侧面开设有若干螺纹孔，所述锁紧结构包括与所述螺纹孔数量相同的紧定螺钉，所述紧定螺钉螺纹穿设于所述电极主体内。
在上述技术方案的基础上，所述衬套由两个对称的半圆环状的结构组合而成。
在上述技术方案的基础上，所述海底光电复合缆和接地电缆上均设有一层保护套。
在上述技术方案的基础上，所述的供海底设备使用的远端接地电极结构还包括用于连接所述电极主体和接线端子的压紧螺钉。
在上述技术方案的基础上，所述接地电缆螺旋缠绕在所述海底光电复合缆上。
在上述技术方案的基础上，所述电极主体、接线端子、盖板为相同材质的金属结构。
在上述技术方案的基础上，所述抵持部和衬套为非金属。
与现有技术相比，本发明的优点在于：本发明的供海底设备使用的远端接地电极结构，密封性和稳固性均较好，可有效降低接地电极的电化学腐蚀速率，增加电极的使用寿命。
附图说明
图1为背景技术中海底观测网的结构示意图；
图2为本发明实施例中供海底设备使用的远端接地电极结构的立体示意图；
图3为本发明实施例中供海底设备使用的远端接地电极结构的 轴向剖视图；
图4为本发明实施例中供海底设备使用的远端接地电极结构的径向剖视图。
图中：1-海底光电复合缆，2-电极主体，22-盖板，3-接地电缆，4-接线端子，5-锁紧结构，51-衬套，52-紧定螺钉，53-抵持部，6-缓冲套，7-保护套，8-压紧螺钉。
具体实施方式
以下结合附图及实施例对本发明作进一步详细说明。
需要说明的是，在不冲突的情况下，本申请中的实施例及实施例中的特征可以相互组合。下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅是本申请一部分实施例，而不是全部的实施例。以下对至少一个示例性实施例的描述实际上仅仅是说明性的，决不作为对本申请及其应用或使用的任何限制。基于本申请中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
参见图1所示，远端接地电极被固定在距离海底设备10米至20米的海底光电复合缆1，与海底设备引出的接地电缆3相互连接，由于远端接地电极与海底设备保持一定距离，从而可以有效避免腐蚀时产生的气体对海底设备性能造成影响，同时还需注意接地电缆3从海底设备引出处的穿舱结构应保证密封性。
参见图2至图4所示，本发明实施例提供一种供海底设备使用的远端接地电极结构，包括与海底设备相连的海底光电复合缆1、电极主体2、接地电缆3和锁紧结构5。
电极主体2套设于所述海底光电复合缆1上，且所述电极主体2具有一收容腔，所述电极主体2上设有一盖板22；接地电缆3设于所述海底光电复合缆1上，所述接地电缆3延伸至所述收容腔内，所述接地电缆3末端连接一接线端子4，且所述接地电缆3、盖板22和收容腔形成一可供收容所述接线端子4的密封腔；锁紧结构5设于所述海底光电复合缆1和电极主体2之间，且所述锁紧结构5锁紧所述海底光电复合缆1和电极主体2。
在本发明实施例中，优选地，电极主体2为空心圆柱状，其中部设有一贯穿孔，所述海底光电复合缆1穿过该贯穿孔，从而实现电极主体2套设于所述海底光电复合缆1上，该贯穿孔的孔径大小根据实际应用中海底光电复合缆1的直径尺寸而定。
更进一步地，在本发明实施例中，供海底设备使用的远端接地电极结构还包括：两个缓冲套6，其套设于所述海底光电复合缆1上，且两个所述缓冲套6分别连接所述电极主体2的两侧。
优选地，所述缓冲套6和电极主体2螺纹连接，便于组装和拆卸；且缓冲套6的材质为聚氨酯。
更为具体地，所述缓冲套6为空心圆锥状，所述缓冲套6远离所述电极主体2一侧的口径与所述海底光电复合缆1的直径大致相同，可以使得缓冲套6和电极主体2形成一个相对密封的腔体，减少海水进入，进而提高远端接地电极结构的稳固性。
参见图3所示，在本发明实施例中，所述锁紧结构5包括一环形的衬套51、至少一紧定螺钉52和一环形的抵持部53。
衬套51套设在所述海底光电复合缆1和电极主体2之间；紧定螺钉52穿设在所述电极主体2上，且抵持在所述衬套51上，以使所述电极主体2和海底光电复合缆1固定；抵持部53套设在所述海底 光电复合缆1和电极主体2之间，且所述抵持部53的侧面抵持并固定所述衬套51。
更为具体地，在本发明实施例中，所述抵持部53和衬套51材料均为非金属，所述衬套51由两个对称的半圆环状的结构组合而成，在组装过程中更为方便，施工难度小，更加实用。并且，衬套51与海底光电复合缆1接触的内径表面上加工有齿形纹，可以增大衬套51与海底光电复合缆1的摩擦力，从而使得海底光电复合缆1和电极主体2通过衬套51固定的更为牢固。
优选地，所述电极主体2侧面开设有若干螺纹孔，所述锁紧结构5包括与所述螺纹孔数量相同的紧定螺钉52，所述紧定螺钉52螺纹穿设于所述电极主体2内。
在本发明实施例中，电极主体2、连接端子4、盖板22、压紧螺钉8、紧定螺钉52的材质相同，采用钛或钛合金，以防止海水中不同金属间产生电化学腐蚀。
优选地，抵持部53与电极主体2螺纹连接，且抵持部53在远离衬套51的端面上设有若干凹槽，该凹槽与工装匹配，通过该凹槽将抵持部53拧紧，并且通过抵持部53对衬套51的作用下，防止衬套51在海底光电复合缆1上滑移，从而使得电极主体2被牢固安装在海底光电复合缆1上。
在本发明实施例中，所述海底光电复合缆1和接地电缆3上均设有一层保护套7，所述保护套7的材质为LDPE。
所述接地电缆3螺旋缠绕在所述海底光电复合缆1上，此处为产品组装时的关键工艺，可使得整个远端接地电极结构更为牢固。
在本发明实施例中，供海底设备使用的远端接地电极结构还包括用于连接所述电极主体2和接线端子4的压紧螺钉8，当接线端子4 安装在接地电缆3上之后，使用压紧螺钉8将接线端子4固定在电极主体2上，以免接线端子4晃动，从而使得结构稳固性更好。
优选地，所述盖板22和电极主体2螺钉连接，使用若干螺钉将盖板22固定在电极主体2上，操作简单。
在本发明实施例中，所述电极主体2、所述连接端子4和所述紧定螺钉52的基材均为TA2，且TA2表面进行MMO涂层处理，通过计算海底设备工作电流及电极主体2的表面积等参数，从理论上可保证电极主体2能承受超过25年的腐蚀消耗。而且，连接端子4与接地电缆3通过注塑工艺实现连接处的水密，该注塑工艺使用到的注塑材料为聚乙烯。
本发明实施例的，供海底设备使用的远端接地电极结构的安装步骤包括：
S1：电极主体2放置在海底光电复合缆1的合适位置后，安装衬套51，并使用紧定螺钉52固定衬套51；
S2：安装抵持部53，固定衬套51和海底光电复合缆1；
S3：将接地电缆3塞进所述电极主体2的收容腔内，在接地电缆3的末端安装接线端子4，并用压紧螺钉8将接线端子4固定在电极主体2上；
S4：盖上盖板22，使用若干螺钉将盖板22固定在电极主体2上；
S5：将两个缓冲套6套设于所述海底光电复合缆1上，两个缓冲套6分别设于电极主体2的两侧，并将缓冲套6和电极主体2螺纹连接。
本发明实施例的远端接地电极结构的工作原理为：在应用时，电极主体2为主要导电及耐腐蚀结构件，电极主体2穿套在海底光电复合缆1上，并通过锁紧结构5将电极主体2紧固在海底光电复合缆1 上，以防止电极主2窜动，所述连接端子4与接地电缆3连接固定，所述接地电缆3通过连接端子4与电极主体2连接以实现电导通。
在本发明实施例中，供海底设备使用的远端接地电极结构中，所述接地电缆3、盖板22和收容腔形成一可供收容所述接线端子4的密封腔，密封性较好，而且整个远端接地电极结构稳固性较好，从而对接线端子4起到密封作用，可有效降低接地电极的电化学腐蚀速率，增加电极的使用寿命。
本发明不局限于上述实施方式，对于本技术领域的普通技术人员来说，在不脱离本发明原理的前提下，还可以做出若干改进和润饰，这些改进和润饰也视为本发明的保护范围之内。本说明书中未作详细描述的内容属于本领域专业技术人员公知的现有技术。

Claims (13)

  1. 一种供海底设备使用的远端接地电极结构，其特征在于，包括：
    与海底设备相连的海底光电复合缆(1)；
    电极主体(2)，其套设于所述海底光电复合缆(1)上，且所述电极主体(2)具有一收容腔，所述电极主体(2)上设有一盖板(22)；
    接地电缆(3)，其设于所述海底光电复合缆(1)上，所述接地电缆(3)延伸至所述收容腔内，所述接地电缆(3)末端连接一接线端子(4)，且所述接地电缆(3)、盖板(22)和收容腔形成一可供收容所述接线端子(4)的密封腔；
    一锁紧结构(5)，其设于所述海底光电复合缆(1)和电极主体(2)之间，且所述锁紧结构(5)锁紧所述海底光电复合缆(1)和电极主体(2)。
  2. 如权利要求1所述的供海底设备使用的远端接地电极结构，其特征在于，还包括：
    两个缓冲套(6)，其套设于所述海底光电复合缆(1)上，且两个所述缓冲套(6)分别连接所述电极主体(2)的两侧。
  3. 如权利要求2所述的供海底设备使用的远端接地电极结构，其特征在于：所述缓冲套(6)和电极主体(2)螺纹连接。
  4. 如权利要求2所述的供海底设备使用的远端接地电极结构，其特征在于：所述缓冲套(6)为空心圆锥状，所述缓冲套(6)远离所述电极主体(2)一侧的口径与所述海底光电复合缆(1)的直径大致相同。
  5. 如权利要求1所述的供海底设备使用的远端接地电极结构，其特征在于，所述锁紧结构(5)包括：
    一环形的衬套(51)，其套设在所述海底光电复合缆(1)和电极主体(2)之间；
    至少一紧定螺钉(52)，其穿设在所述电极主体(2)上，且抵持在所述衬套(51)上，以使所述电极主体(2)和海底光电复合缆(1)固定。
  6. 如权利要求5所述的供海底设备使用的远端接地电极结构，其特征在于，所述锁紧结构(5)还包括：
    一环形的抵持部(53)，其套设在所述海底光电复合缆(1)和电极主体(2)之间，且所述抵持部(53)和电极主体(2)螺纹连接，所述抵持部(53)的侧面抵持并固定所述衬套(51)。
  7. 如权利要求5所述的供海底设备使用的远端接地电极结构，其特征在于，所述电极主体(2)侧面开设有若干螺纹孔，所述锁紧结构(5)包括与所述螺纹孔数量相同的紧定螺钉(52)，所述紧定螺钉(52)螺纹穿设于所述电极主体(2)内。
  8. 如权利要求5所述的供海底设备使用的远端接地电极结构，其特征在于：所述衬套(51)由两个对称的半圆环状的结构组合而成。
  9. 如权利要求1所述的供海底设备使用的远端接地电极结构，其特征在于，所述海底光电复合缆(1)和接地电缆(3)上均设有一层保护套(7)。
  10. 如权利要求1所述的供海底设备使用的远端接地电极结构，其特征在于，还包括用于连接所述电极主体(2)和接线端子(4)的压紧螺钉(8)。
  11. 如权利要求1所述的供海底设备使用的远端接地电极结构，其特征在于：所述接地电缆(3)螺旋缠绕在所述海底光电复合缆(1)上。
  12. 如权利要求1所述的供海底设备使用的远端接地电极结构，其特征在于：所述电极主体(2)、接线端子(4)、盖板(22)为相同材质的金属结构。
  13. 如权利要求6所述的供海底设备使用的远端接地电极结构，其特征在于：所述抵持部(53)和衬套(51)为非金属。
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