WO2019184101A1 - 海缆固定装置 - Google Patents

海缆固定装置 Download PDF

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Publication number
WO2019184101A1
WO2019184101A1 PCT/CN2018/091464 CN2018091464W WO2019184101A1 WO 2019184101 A1 WO2019184101 A1 WO 2019184101A1 CN 2018091464 W CN2018091464 W CN 2018091464W WO 2019184101 A1 WO2019184101 A1 WO 2019184101A1
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WO
WIPO (PCT)
Prior art keywords
submarine cable
locking
fastener
wire
flange
Prior art date
Application number
PCT/CN2018/091464
Other languages
English (en)
French (fr)
Inventor
董吴磊
郭朝阳
陈磊
谢书鸿
杨华勇
蔡炳余
石银
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
Priority claimed from CN201810252765.2A external-priority patent/CN110364984B/zh
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
Publication of WO2019184101A1 publication Critical patent/WO2019184101A1/zh

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    • 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
    • H02G15/013—Sealing means for cable inlets
    • 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
    • H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
    • H02G3/02—Details
    • H02G3/04—Protective tubing or conduits, e.g. cable ladders or cable troughs
    • 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
    • H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
    • H02G3/02—Details
    • H02G3/04—Protective tubing or conduits, e.g. cable ladders or cable troughs
    • H02G3/0406—Details thereof
    • H02G3/0418—Covers or lids; Their fastenings
    • 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
    • H02G9/02—Installations of electric cables or lines in or on the ground or water laid directly in or on the ground, river-bed or sea-bottom; Coverings therefor, e.g. tile

Definitions

  • the present invention relates to the field of submarine cable devices, and more particularly to a submarine cable fixing device with sealing performance.
  • the conventional fixing device fixes the submarine cable by pressing the steel wire and filling the inside of the device with a waterproof sealant (resin).
  • the waterproof sealant has a limited life span and cannot meet the service life of the submarine cable. It requires regular maintenance and inspection, which has potential hidden dangers.
  • the present invention provides a sea cable fixing device having a good sealing performance.
  • a submarine cable positioning device includes a protection tube sealing mechanism, a wire locking mechanism and a submarine cable single-phase sealing mechanism, wherein one end of the protection tube sealing mechanism is connected with a submarine cable protection tube, and the other end is One end of the wire locking mechanism is connected, and the other end of the wire locking mechanism is connected to the single-phase sealing mechanism of the submarine cable.
  • the protective tube sealing mechanism comprises a sealing plate, an integral sealing member, a flange and a first fastener, the sealing plate, the integral sealing member and the flange are annular, and the center is available for the submarine cable to pass through.
  • the gasket, the integral seal and the flange are both a half structure, the integral seal is disposed between the gasket and the flange, and the first fastener passes through the flange and the whole A seal and a gasket are attached and locked to the flange, the finishing seal and the gasket, the integral seal being made of an elastic material.
  • the flange includes a connecting portion and a pressing portion, the connecting portion being connected to the submarine cable protection tube, and the pressing portion is connected to the wire locking mechanism.
  • the protective tube sealing mechanism further includes a second fastener and a third fastener, the second fastener passing through the connecting portion and the submarine cable protection tube, the connecting portion and the submarine cable protection tube Attached and locked, the third fastener is disposed on the pressing portion for locking the half structure of the flange.
  • the wire locking mechanism is used for locking an armored wire in a submarine cable, the wire locking mechanism comprising a wire pad, a locking member and a fourth fastener, the wire pad and pressing
  • the components are all half-structured, the armor wire is disposed between the wire pad and the locking member, and the fourth fastener passes through the locking member and protrudes into the pressing portion.
  • the armor wire is locked and connected to the wire locking mechanism and the pressing portion.
  • one end of the wire pad is provided with a flange
  • one end of the pressing portion away from the connecting portion is provided with a receiving groove
  • the flange is received in the receiving groove to make the wire pad and the wire
  • the connecting portions are wedge-shaped.
  • the locking member includes a first locking portion and a second locking portion
  • the fourth fastener is disposed on the first locking portion and passes through the first locking portion
  • the wire locking mechanism further includes a fifth fastener disposed on the second locking portion for connecting the two halves of the locking member And lock it.
  • the submarine cable single-phase sealing mechanism comprises an inner seal, an outer seal and a sealing pressure plate, the inner seal is received in the outer seal, and the outer seal is received in the second lock
  • the sealing platen is disposed at one end of the inner seal and the outer seal, and the inner seal and the outer seal are both made of an elastic material.
  • the submarine cable single-phase sealing mechanism further includes a sixth fastener, the sixth fastener passing through the sealing platen and extending into the second locking portion, the inner seal and The outer seal is locked and sealed.
  • the protective tube sealing mechanism of the submarine cable fixing device with multiple sealing performance provided by the invention forms a sealing protection by locking the sealing member, preventing seawater and corrosive microorganisms from entering the corrosion device inside the device, and the elastic sealing member increases the sea
  • the stability of the cable prevents the submarine cable from colliding with the inner wall of the protection tube.
  • the submarine cable single-phase sealing mechanism of the submarine cable fixing device prevents the influence of water vapor and the like on the device in the marine environment by sealing each single phase separately, and the performance is far superior to the sealing of the three-phase whole. All the seals are made of elastic material, and the waterproof sealant of the traditional structure is replaced by the seal to meet the service life of the submarine cable, so that the cable fixing device has better sealing and stability.
  • Each part of the whole device adopts a half-structure, which is convenient to install and simple to operate, improves work efficiency, and saves operation time at sea.
  • FIG. 1 is a perspective view of a submarine cable fixing device provided by the present invention.
  • Figure 2 is a cross-sectional view of the submarine cable fixing device of Figure 1 taken along the line II-II.
  • Figure 3 is an exploded view of the submarine cable fixture of Figure 1.
  • Figure 4 is an exploded view of the other direction of the submarine cable fixture of Figure 1.
  • Gasket 18 Storage slot 2 Wire locking mechanism twenty one Wire mat 211 Flange 212 Pad body twenty two Locking piece 221 First locking part 222 Second locking part twenty three Fourth fastener 231 Fourth positioning hole twenty four Fifth fastener 241 Fifth positioning hole 242 Connection plate 25 Boss 3 Submarine cable single-phase sealing mechanism 31 Inner seal 311 Through hole 32 Outer seal 33 Sealing plate 34 Sixth fastener 341 Sixth positioning hole 4 Cable protection tube 41 Flange 5 Armored wire 6 Submarine cable single phase
  • the present invention provides a submarine cable fixture with multiple sealing capabilities.
  • the submarine cable fixing device includes a protection tube sealing mechanism 1, a wire locking mechanism 2, and a submarine cable single-phase sealing mechanism 3.
  • the submarine cable 7 disposed inside the submarine cable protection tube 4 passes through the center of the device and is fixed.
  • One end of the protective tube sealing mechanism 1 is connected to the end of the submarine cable protection tube 4, and the other end is connected to one end of the wire locking mechanism 2.
  • the other end of the wire locking mechanism 2 is connected to the submarine cable single-phase sealing mechanism 3.
  • the protective tube sealing mechanism 1 is used to connect the submarine cable fixing device and the submarine cable protection tube 4, and seals the submarine cable protection tube 4 to prevent seawater and corrosive microorganisms from entering the inside of the submarine cable fixing device.
  • the protective tube sealing mechanism 1 includes a gasket 11, an integral seal 12, a flange 13, a first fastener 14, a second fastener 15, and a third fastener 16.
  • the gasket plate 11 is a half-structure and can be split into two identical semi-annular structures.
  • the integral seal 12 and the flange 13 are also half-structured, i.e., respectively separable into two identical parts. Each portion of the unitary seal 12 is generally semi-annular and is combined to form a complete annulus.
  • the integral seal 12 is sandwiched between the gasket plate 11 and the flange 13, and the integral seal 12 is made of an elastic material.
  • the integral seal 12 is made of a polyurethane material having high corrosion resistance, high resilience, and high wear resistance.
  • the inner diameter of the gasket 11, the integral seal 12 and the flange 13 are the same as the diameter of the submarine cable 7, forming a central passage 71 through which the submarine cable 7 can pass, i.e., the diameter of the central passage 71 is equal to the diameter of the submarine cable 7.
  • the outer diameters of the gasket plate 11 and the integral seal 12 are the same as the inner diameter of the submarine cable protection tube 4.
  • the flange 13 includes a connecting portion 131 and a pressing portion 132.
  • the bottom end of the connecting portion 131 is connected to the upper end surface of the pressing portion 132, and the connecting portion 131 and the pressing portion 132 are integrally formed, that is, the pressing portion 132 is connected.
  • the intermediate portion of the upper end surface of the portion 131 is formed to protrude in the axial vertical connecting portion 131.
  • the end of the submarine cable protection tube 4 is provided with a flange 41.
  • the outer diameter of the connecting portion 131 is the same as the diameter of the flange 41 at the end of the submarine cable protection tube 4, the inner diameter of the connecting portion 131 is the same as the inner diameter of the gasket plate 11 and the integral sealing member 12, and the connecting portion 131 is in the form of a sheet-like half. Ring structure.
  • the pressing portion 132 is a semi-annular structure having an outer diameter smaller than the outer diameter of the connecting portion 131 and an inner diameter larger than the inner diameter of the connecting portion 131 and having a certain thickness.
  • the connecting portion 131 and the pressing portion 132 are coaxially disposed.
  • the first fastener 14 sequentially passes through the connecting portion 131, the integral sealing member 12 and the gasket 11 at a position close to the central passage 71, and connects and locks the connecting portion 131, the integral sealing member 12 and the sealing plate 11 into one overall.
  • the connecting portion 131, the integral sealing member 12 and the sealing plate 11 are respectively provided with a first positioning hole (not shown) through which the first fastener 14 can pass.
  • a second positioning hole 151 (such as FIG. 3) through which the second fastener 15 passes is disposed at a position of the connecting portion 132 near the outer edge, and the second fastener 15 passes through the connecting portion 131 through the second positioning hole 151 and
  • the flange 41 at the end of the submarine cable protection tube 4 connects and locks the connecting portion 131 and the flange 41, and at this time, the gasket 11 and the integral sealing member 12 are housed in the submarine cable protection tube 4.
  • a sealing gasket 17 is also disposed between the flange 41 and the connecting portion 131 to facilitate the locking and sealing of the second fastener 15 and to enhance the sealing performance of the protective tube sealing mechanism 1.
  • a third positioning hole 161 through which the third fastener 16 passes is also formed on the pressing portion 132 of the flange 13.
  • the third fastener 16 locks the pressing portions 132 of the two flanges 13 to merge the two symmetrical portions of the protective tube sealing mechanism 1 into one unit.
  • the wire locking mechanism 2 is used to lock the armored wire 5 in the submarine cable 7 and use the frictional force to counteract the gravity of the submarine cable 7 to prevent the submarine cable 7 from slipping.
  • the wire locking mechanism 2 includes a wire backing plate 21, a locking member 22, a fourth fastener 23 and a fifth fastener 24.
  • the wire mat 21 and the locking member 22 are also a half structure.
  • the wire mat 21 includes a flange 211 and a backing plate body portion 212.
  • the pad main body portion 222 has a semi-annular structure, and the flange 211 is formed to protrude radially outward from one end of the pad main body portion 212.
  • a receiving groove 18 is further defined in the inner side of the pressing portion 132 of the flange 13 , and the flange 211 is received in the receiving groove 18 , so that the wire pad 21 is wedge-connected to the pressing portion 132 of the flange 13 , and The end surface of the wire mat 21 provided with the flange 211 is flush with the end surface of the pressing portion 132, and the armor wires 5 of the submarine cable 7 are evenly distributed on the upper end planes of the wire mat 21 and the pressing portion 231.
  • the locking member 22 includes a first locking portion 221 and a second locking portion 222, wherein the first locking portion 221 is a sheet-like semi-annular structure having an outer diameter equal to the outer diameter of the pressing portion 132, and the second locking portion 222 It is a semi-cylindrical structure.
  • the upper end surface of the first locking portion 221 is connected to the lower end surface of the second locking portion 22, and the first locking portion 221 and the second locking portion 222 are integrally formed, that is, the second locking portion 222 is first.
  • the inner diameter of the locking portion 221 is formed to protrude perpendicularly from the first locking portion 221 in the axial direction.
  • the first locking portion 221 of the locking member 22 is placed on the armor wire 5, and the armor wire 5 is pressed together with the wire pad 21 and the pressing portion 132.
  • a fourth positioning hole 231 through which the fourth fastener 23 passes is formed on each of the first locking portion 221 and the pressing portion 132.
  • the fourth fastener 23 passes through the first locking hole 231 and is inserted into the pressing portion 132 through the fourth positioning hole 231, and connects the first locking portion 231 with the pressing portion 132 of the flange 13, and the armor wire 5 is attached.
  • the clamped between the first locking portion 221 and the pressing portion 132 is locked, and the generated friction can cancel the gravity of the submarine cable 7.
  • the two sides of the second locking portion 222 extend radially outward to form a connecting plate 242.
  • the connecting plate 242 is further provided with a fifth positioning hole 241 through which the fifth fastener 24 passes.
  • the fifth fastening member 24 The two second locking portions 222 are connected by the fifth positioning holes 241, thereby merging the two symmetrical portions of the wire locking mechanism 2 into one.
  • the submarine cable 7 used in this embodiment is a three-phase cable, and the cable is wrapped with four wires, which are three hot wires and one zero wire.
  • Each of the wires in the submarine cable 7 is a single phase 6.
  • the submarine cable single-phase sealing mechanism 3 is used to seal each single phase 6 of the submarine cable 7 to prevent the influence of water vapor and the like on the device in the marine environment, and the sealing performance is far superior to the three-phase integral sealing.
  • the submarine cable single-phase sealing mechanism 3 includes an inner seal 31, an outer seal 32, a sealing platen 33, and a sixth fastener 34.
  • the inner seal member 31 is substantially rectangular parallelepiped, and a through hole 311 through which the single phase 6 passes is opened.
  • the number of the inner seal members 31 is four, the cables constituting the respective single phases 6 are separately sealed, and the inner seal member 31 is housed in the outer seal member 32.
  • the outer seal 32 is a cylindrical structure with a square hole in the middle, and the outer seal 32 is received in the second locking portion 222 of the locking member 22.
  • the inner bottom end of the locking member 22 is convexly provided with a boss 25 for abutting against the bottom end of the outer seal 32.
  • Both the inner seal 31 and the outer seal 32 are made of an elastic material, and in the present embodiment, the elastic material used is a polyurethane material.
  • the sealing platen 33 is a half-structure consisting of two identical sheet-like semi-annular structures, which are covered on the inner seal 31 and the outer seal 32, and the single phase 6 of the submarine cable 7 projects from the center of the sealing platen 33. .
  • the outer diameter of the sealing platen 33 is the same as the outer diameter of the second locking portion 222 of the locking member 22.
  • the sixth positioning hole 341 is defined in the sealing platen 33 and the second locking portion 222.
  • the sixth positioning member 34 passes through the sealing platen 33 through the sixth positioning hole 341 and is inserted into the second locking portion 222, presses the inner seal 31 and the outer seal 32, and causes the submarine cable single-phase sealing mechanism 3 and the wire lock
  • the tensioning mechanism 2 is tightly connected to achieve the sealing of the individual single phases 6 of the submarine cable 7.
  • a brief description of the installation method of the submarine cable fixing device of the present invention is as follows: at the time of installation, the first fastener 14 is first passed through the sealing pad 11, the integral sealing member 12 and the flange 13, respectively, to form a unitary structure, and slightly Tightening the first fastener 14 to prevent the parts from falling off; placing the above-mentioned integral structure on the top end of the submarine cable protection tube 4, connecting the flange 13 and the submarine cable protection tube 4 through the second fastener 15; The firmware 16 locks the two flanges 13 and tightens the first fastener 14 according to the specified torque, so that the integral seal 12 is pressed and deformed and fully contacts the outer side of the submarine cable 7 and the inside of the submarine cable protection tube 4 to form Sealing, thereby completing the installation of the protective tube sealing mechanism 1; then assembling the wire backing plate 21 on the flange 13, while peeling and cutting the armored wire 5 in the submarine cable 7 to a prescribed length, and attaching the armored wire as required 5 is opened, evenly
  • the protective tube sealing mechanism 1 of the submarine cable fixing device with multiple sealing performance provided by the present invention forms a sealing protection by locking the sealing member, preventing seawater and corrosive microorganisms from entering the device.
  • the internal corrosion means, and the respective seals made of an elastic material increase the stability of the submarine cable 7, preventing the submarine cable 7 from colliding with the inner wall of the submarine cable protection tube 4.
  • the submarine cable single-phase sealing mechanism 3 of the submarine cable fixing device respectively seals each single phase 6 to prevent the influence of water vapor and the like on the device in the marine environment, and the performance is far superior to the sealing of the three-phase whole.
  • All the seals are made of elastic material, and the waterproof sealant of the traditional structure is replaced by the seal to meet the service life of the submarine cable 7, so that the cable fixing device has better sealing and stability. All parts of the whole device adopt the Haval-type half structure, which is convenient to install and simple to operate, which improves work efficiency and saves operation time at sea.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Electric Cable Installation (AREA)
  • Laying Of Electric Cables Or Lines Outside (AREA)
  • Cable Accessories (AREA)

Abstract

一种带有多重密封性能的海缆固定装置，安装在海缆保护管（4）的顶端，包括保护管密封机构（1）、钢丝锁紧机构（2）和单相密封机构（3）。保护管密封机构（1）通过紧固件（14,15,16）锁紧弹性材料制成的整体密封件（12），将海缆（7）和海缆保护管（4）之间密封；钢丝锁紧机构（2）通过锁紧海缆（7）的铠装钢丝（5）产生摩擦力，从而抵消海缆（7）的重力；单相密封机构（3）将海缆（7）的每个单相（6）分别密封，通过密封压板（33）压紧，保证长期的密封性能。整个装置密封性能优异，整体为对半结构，安装方便。

Description

海缆固定装置 技术领域
本发明涉及海缆装置领域，尤其涉及一种带有密封性能的海缆固定装置。
背景技术
我国正大力发展海上风电场工程。海底电缆作为海上电力传输的媒介，在风电场中发挥了巨大作用。海缆在使用的过程中，由于其质量较大，为保证海缆不出现下滑等现象，需要实用固定装置将其固定。传统的固定装置通过压紧钢丝并且用防水密封胶(树脂)填充装置内部的形式固定海缆。但是防水密封胶的寿命有限，无法满足海缆的使用年限，需要定期维护和检查等，具有潜在隐患。
发明内容
鉴于上述状况，本发明提供一种密封性能好的海缆固定装置。
一种海缆定位装置，所述海缆固定装置包括保护管密封机构、钢丝锁紧机构和海缆单相密封机构，所述保护管密封机构的一端与海缆保护管连接，另一端与所述钢丝锁紧机构的一端连接，所述钢丝锁紧机构的另一端与所述海缆单相密封机构连接。
优选地，所述保护管密封机构包括密封垫板、整体密封件、法兰和第一紧固件，所述密封垫板、整体密封件和法兰呈环形，中心可供海缆通过，所述密封垫板、整体密封件和法兰均为对半结构，所述整体密封件设置在所述密封垫板和法兰之间，所述第一紧固件穿过所述法兰、整体密封件和密封垫板，将所述法兰、整理密封件和密封垫板连接并锁紧，所述整体密封件由弹性材料制成。
优选地，所述法兰包括连接部和压紧部，所述连接部与所述海缆保护管连接，所述压紧部与所述钢丝锁紧机构连接。
优选地，所述保护管密封机构还包括第二紧固件和第三紧固件，所述第二紧固件穿过所述连接部和海缆保护管，将连接部和海缆保护管连接并锁紧，所述第三紧固件设置在所述压紧部上，用于将所述法兰的对半结构锁紧。
优选地，所述钢丝锁紧机构用于锁紧海缆中的铠装钢丝，所述钢丝锁紧机构包括钢丝垫板、锁紧件和第四紧固件，所述钢丝垫板和压紧件均为对半结构，所述铠装钢丝设置在所述钢丝垫板和锁紧件之间，所述第四紧固件穿过所述锁紧件并伸入所述压紧部中，将所述铠装钢丝锁紧并连接钢丝锁紧机构和压紧部。
优选地，所述钢丝垫板的一端设有凸缘，所述压紧部远离连接部的一端开设有收容槽，所述凸缘收容在所述收容槽中，使所述钢丝垫板与所述连接部呈楔形连接。
优选地，所述锁紧件包括第一锁紧部和第二锁紧部，所述第四紧固件设置在所述第一锁紧部上并穿过第一锁紧部。
优选地，所述钢丝锁紧机构还包括第五紧固件，所述第五紧固件设置在所述第二锁紧部上，用于将所述锁紧件的两个对半部分连接并锁紧。
优选地，所述海缆单相密封机构包括内密封件、外密封件和密封压板，所述内密封件收容在所述外密封件内，所述外密封件收容在所述第二锁紧部内，所述密封压板设置在所述内密封件和外密封件的一端，所述内密封件和外密封件均由弹性材料制成。
优选地，所述海缆单相密封机构还包括第六紧固件，所述第六紧固件穿过所述密封压板并伸入所述第二锁紧部，使所述内密封件和外密封件被锁紧密封。
本发明提供的带有多重密封性能的海缆固定装置的保护管密封 机构通过锁紧密封件的形式，形成密封保护，阻止海水和腐蚀微生物等进入装置内部腐蚀装置，并且弹性密封件增加了海缆的稳定性，防止海缆与保护管内壁形成碰撞。海缆固定装置的海缆单相密封机构通过对各个单相分别进行密封，防止海洋环境下水汽等对装置的影响，性能远远优于对三相整体的密封。所有的密封件均采用弹性材料制成，通过密封件替代了传统结构的防水密封胶，满足海缆的使用年限，使海缆固定装置具有更好的密封性和稳定性。整个装置的各个部分均采用对半结构，安装方便，操作简单，提高了工作效率，节省了海上的操作时间。
附图说明
图1为本发明提供的海缆固定装置的立体视图。
图2为图1所示的海缆固定装置沿II-II方向的剖视图。
图3为图1所示的海缆固定装置的爆炸视图。
图4为图1所示的海缆固定装置的另一方向的爆炸视图。
主要元件符号说明：
1 保护管密封机构
11 密封垫板
12 整体密封件
13 法兰
131 连接部
132 压紧部
14 第一紧固件
15 第二紧固件
151 第二定位孔
16 第三紧固件
161 第三定位孔
17 密封垫圈
18 收容槽
2 钢丝锁紧机构
21 钢丝垫板
211 凸缘
212 垫板主体部
22 锁紧件
221 第一锁紧部
222 第二锁紧部
23 第四紧固件
231 第四定位孔
24 第五紧固件
241 第五定位孔
242 连接板
25 凸台
3 海缆单相密封机构
31 内密封件
311 通孔
32 外密封件
33 密封压板
34 第六紧固件
341 第六定位孔
4 海缆保护管
41 法兰盘
5 铠装钢丝
6 海缆单相
7 海缆
71 中心通道
具体实施方式：
下面将结合本发明实施例中的附图，对本发明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发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，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，都属于本发明保护的范围。
请参阅图1和图2，本发明提供一种带有多重密封性能的海缆固定装置。所述海缆固定装置包括保护管密封机构1、钢丝锁紧机构2和海缆单相密封机构3。设置在海缆保护管4内部的海缆7从该装置的中心通过并且被固定。所述保护管密封机构1的一端与海缆保护管4的端部连接，另一端与所述钢丝锁紧机构2的一端连接。所述钢丝锁紧机构2的另一端与所述海缆单相密封机构3连接。
保护管密封机构1用于连接海缆固定装置和海缆保护管4，并且将海缆保护管4密封，阻止海水和腐蚀微生物等进入海缆固定装置内部。请同时参阅图2至图4，保护管密封机构1包括密封垫板11、整体密封件12、法兰13、第一紧固件14、第二紧固件15和第三紧固件16。密封垫板11为对半结构，可拆分为两个完全相同的半环形结构。整体密封件12和法兰13也是对半结构，即分别可拆分为两个完全相同的部分。整体密封件12的每个部分大致为半环形，组合在一起成为一个完整的环形。整体密封件12夹在密封垫板11和法兰13之间，且整体密封件12由弹性材料制成。在本实施中，整体密封件12由具有高防腐、高回弹、高耐磨的聚氨酯材料制成。密封垫板11、整体密封件12和法兰13的内径均与海缆7的直径相同，形成可供海缆7通过的中心通道71，即中心通道71的直径与 海缆7的直径相等。密封垫板11和整体密封件12的外径均与海缆保护管4的内径相同。
法兰13包括连接部131和压紧部132，连接部131的底端与压紧部132的上端面连接，且连接部131和压紧部132为一体成型结构，即压紧部132由连接部131的上端面的中间部位沿轴向垂直连接部131凸伸形成。海缆保护管4的端部设置有法兰盘41。连接部131的外径与海缆保护管4端部的法兰盘41的直径相同，连接部131的内径与密封垫板11和整体密封件12的内径相同，并且连接部131呈片状半环形结构。压紧部132为外径小于连接部131的外径、内径大于连接部131的内径，且具有一定厚度的半环形结构。连接部131和压紧部132同轴设置。第一紧固件14在靠近中心通道71的位置依次穿过连接部131、整体密封件12和密封垫板11，将连接部131、整体密封件12和密封垫板11连接并锁紧成一个整体。连接部131、整体密封件12和密封垫板11上均开设有可供第一紧固件14通过的第一定位孔(图未示)。
连接部132上靠近外缘的位置开设有可供第二紧固件15通过的第二定位孔151(如图3)，第二紧固件15通过第二定位孔151穿过连接部131和海缆保护管4的端部的法兰盘41，将连接部131和法兰盘41连接并锁紧，此时密封垫板11和整体密封件12收容在海缆保护管4内。法兰盘41和连接部131之间还设置有密封垫圈17，有助于第二紧固件15的锁紧和密封，增强保护管密封机构1的密封性能。法兰13的压紧部132上还开设有供第三紧固件16通过的第三定位孔161。第三紧固件16将两个法兰13的压紧部132锁紧，从而使保护管密封机构1的对称的两部分合并成一个整体。
钢丝锁紧机构2用于将海缆7中的铠装钢丝5锁紧，利用摩擦力抵消海缆7的重力，避免海缆7出现下滑的现象。请参阅图2、图3和图4，钢丝锁紧机构2包括钢丝垫板21、锁紧件22、第四紧 固件23和第五紧固件24。钢丝垫板21和锁紧件22也是对半结构。钢丝垫板21包括凸缘211和垫板主体部212。所述垫板主体部222为半环形结构，凸缘211由垫板主体部212的一端沿径向向外凸伸形成。法兰13的压紧部132的顶端内侧还开设有收容槽18，凸缘211收容在所述收容槽18中，从而使钢丝垫板21与法兰13的压紧部132呈楔形连接，且钢丝垫板21设置有凸缘211的一端的端面与压紧部132的端面处于同一平面，海缆7的铠装钢丝5均匀的分布在钢丝垫板21和压紧部231的上端平面上。锁紧件22包括第一锁紧部221和第二锁紧部222，其中第一锁紧部221为外径与压紧部132外径相同的片状半环形结构，第二锁紧部222为半筒状结构。第一锁紧部221的上端面与第二锁紧部22的下端面连接，且第一锁紧部221和第二锁紧部222为一体成型结构，即第二锁紧部222由第一锁紧部221的内径沿轴向垂直第一锁紧部221凸伸形成。锁紧件22的第一锁紧部221盖设在铠装钢丝5上，和钢丝垫板21、压紧部132一起把铠装钢丝5压紧。第一锁紧部221和压紧部132上均开设有供第四紧固件23通过的第四定位孔231。第四紧固件23通过第四定位孔231穿过第一锁紧部221并插入压紧部132中，将第一锁紧部231与法兰13的压紧部132连接，铠装钢丝5夹设在第一锁紧部221和压紧部132中间被锁紧，产生的摩擦力可抵消海缆7的重力。第二锁紧部222的两侧边沿径向向外延伸形成连接板242，在连接板242上还开设有可供第五紧固件24通过的第五定位孔241，第五紧固件24通过第五定位孔241将两个第二锁紧部222连接，从而使钢丝锁紧机构2的对称的两部分合并成整体。
本实施例中使用的海缆7是三相电缆，电缆中包裹有四根导线，分别为三根火线和一根零线。海缆7中的各个导线即为单相6。海缆单相密封机构3用于将海缆7的各个单相6分别密封，防止海洋环境下水汽等对装置的影响，且密封性能远远优于三相整体的密封。 请参阅图2和图3，海缆单相密封机构3包括内密封件31、外密封件32、密封压板33和第六紧固件34。内密封件31大致呈长方体，其中开设有可供单相6通过的通孔311。在本实施例中，内密封件31的数量有四个，将组成各个单相6的线缆分开密封，且内密封件31收容在外密封件32中。外密封件32为中间开设有方孔的圆柱形结构，且外密封件32收容在锁紧件22的第二锁紧部222中。锁紧件22的内侧底端沿径向向内凸设有一个凸台25，用于抵持外密封件32的底端。内密封件31和外密封件32均由弹性材料制成，在本实施例中，所使用的弹性材料为聚氨酯材料。密封压板33为对半结构，由两块完全相同的片状半环形结构组成，盖设在内密封件31和外密封件32上，海缆7的单相6从密封压板33的中心伸出。密封压板33的外径与锁紧件22的第二锁紧部222的外径相同，密封压板33和第二锁紧部222上开设有第六定位孔341。第六定位件34通过第六定位孔341穿过密封压板33并插入第二锁紧部222中，压紧内密封件31和外密封件32，并且使海缆单相密封机构3与钢丝锁紧机构2紧密连接，实现海缆7的各个单相6的密封。
现对本发明的海缆固定装置的安装方法进行简要说明：在安装时，首先将第一紧固件14分别穿过密封垫板11、整体密封件12和法兰13，形成整体结构，并稍微拧紧第一紧固件14，避免零件脱落；再将上述整体结构放置在海缆保护管4的顶端，通过第二紧固件15连接法兰13和海缆保护管4；接着使用第三紧固件16锁紧两半法兰13，并按照指定力矩拧紧第一紧固件14，使整体密封件12挤压变形并且与海缆7的外侧和海缆保护管4的内侧充分接触，形成密封，从而完成保护管密封机构1的安装；之后再将钢丝垫板21组装在法兰13上，同时剥离并切割海缆7中的铠装钢丝5至规定长度，并按照要求将铠装钢丝5掰开，使其均匀的分布在钢丝垫板21和法兰13的上端面上，然后通过第四紧固件23锁紧法兰13和锁紧件 22的第一锁紧部222，将铠装钢丝5压紧，并通过第五紧固件24将第二锁紧部222锁紧，使两半锁紧件22结合，完成钢丝锁紧机构2的组装，通过锁紧铠装钢丝5产生的摩擦力抵消海缆7的重力；接着先将外密封件32装入锁紧件22的第二锁紧部222的内侧，再分别安装海缆7的各个单相6的内密封件31，并通过第六紧固件34锁紧密封压板33，使内密封件31和外密封件32挤压变形，形成密封，完成单相密封机构3的组装。至此，本发明的海缆固定装置安装完成。
相比于以往的海缆固定装置，本发明提供的带有多重密封性能的海缆固定装置的保护管密封机构1通过锁紧密封件的形式，形成密封保护，阻止海水和腐蚀微生物等进入装置内部腐蚀装置，并且弹性材料制成的各个密封件增加了海缆7的稳定性，防止海缆7与海缆保护管4的内壁形成碰撞。海缆固定装置的海缆单相密封机构3通过对各个单相6分别进行密封，防止海洋环境下水汽等对装置的影响，性能远远优于对三相整体的密封。所有的密封件均采用弹性材料制成，通过密封件替代了传统结构的防水密封胶，满足海缆7的使用年限，使海缆固定装置具有更好的密封性和稳定性。整个装置的各个部分均采用哈弗式对半结构，安装方便，操作简单，提高了工作效率，节省了海上的操作时间。
以上实施方式仅用以说明本发明的技术方案而非限制，尽管参照以上较佳实施方式对本发明进行了详细说明，本领域的普通技术人员应当理解，可以对本发明的技术方案进行修改或等同替换都不应脱离本发明技术方案的精神和范围。

Claims (10)

  1. 一种海缆固定装置，其特征在于：所述海缆固定装置包括保护管密封机构、钢丝锁紧机构和海缆单相密封机构，所述保护管密封机构的一端与海缆保护管连接，另一端与所述钢丝锁紧机构的一端连接，所述钢丝锁紧机构的另一端与所述海缆单相密封机构连接。
  2. 如权利要求1所述的海缆固定装置，其特征在于，所述保护管密封机构包括密封垫板、整体密封件、法兰和第一紧固件，所述密封垫板、整体密封件和法兰的中心能够供海缆通过，所述密封垫板、整体密封件和法兰均为对半结构，所述整体密封件设置在所述密封垫板和法兰之间，所述第一紧固件穿过所述法兰、整体密封件和密封垫板，将所述法兰、整理密封件和密封垫板连接并锁紧，所述整体密封件由弹性材料制成。
  3. 如权利要求2所述的海缆固定装置，其特征在于，所述法兰包括连接部和与所述连接部连接的压紧部，所述连接部与所述海缆保护管连接，所述压紧部与所述钢丝锁紧机构连接。
  4. 如权利要求3所述的海缆固定装置，其特征在于，所述保护管密封机构还包括第二紧固件和第三紧固件，所述第二紧固件穿过所述连接部和海缆保护管，将连接部和海缆保护管连接并锁紧，所述第三紧固件设置在所述压紧部上，用于将所述法兰的对半结构锁紧。
  5. 如权利要求3所述的海缆固定装置，其特征在于，所述钢丝锁紧机构用于锁紧海缆中的铠装钢丝，所述钢丝锁紧机构包括钢丝垫板、锁紧件和第四紧固件，所述钢丝垫板和锁紧件均为对半结构，所述第四紧固件穿过所述锁紧件并伸入所述压紧部中，用于将铠装钢丝锁紧并连接钢丝锁紧机构和压紧 部。
  6. 如权利要求5所述的海缆固定装置，其特征在于，所述钢丝垫板的一端设有凸缘，所述压紧部远离连接部的一端开设有收容槽，所述凸缘收容在所述收容槽中。
  7. 如权利要求6所述的海缆固定装置，其特征在于，所述锁紧件包括第一锁紧部和第二锁紧部，所述第四紧固件设置在所述第一锁紧部上并穿过第一锁紧部。
  8. 如权利要求7所述的海缆固定装置，其特征在于，所述钢丝锁紧机构还包括第五紧固件，所述第五紧固件设置在所述第二锁紧部上，用于将所述锁紧件的两个对半部分连接并锁紧。
  9. 如权利要求5所述的海缆固定装置，其特征在于，所述海缆单相密封机构包括内密封件、外密封件和密封压板，所述内密封件收容在所述外密封件内，所述外密封件收容在所述第二锁紧部内，所述密封压板设置在所述内密封件和外密封件的一端，所述内密封件和外密封件均由弹性材料制成。
  10. 如权利要求9所述的海缆固定装置，其特征在于，所述海缆单相密封机构还包括第六紧固件，所述第六紧固件穿过所述密封压板并伸入所述第二锁紧部，使所述内密封件和外密封件被锁紧密封。
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