CN218728213U

CN218728213U - Corrosion-resistant and heat-insulating submarine cable protective pipe

Info

Publication number: CN218728213U
Application number: CN202222769092.2U
Authority: CN
Inventors: 姚璞玉; 孟繁朴; 赵彬; 初士博; 张天鹏
Original assignee: Institute of Oceanographic Instrumentation Shandong Academy of Sciences
Current assignee: Institute of Oceanographic Instrumentation Shandong Academy of Sciences
Priority date: 2022-10-20
Filing date: 2022-10-20
Publication date: 2023-03-24
Anticipated expiration: 2032-10-20

Abstract

The utility model relates to the technical field of submarine cable protective pipes, in particular to a corrosion-resistant and heat-insulating submarine cable protective pipe, which comprises an inner pipe and an outer pipe outside the inner pipe, wherein the outer wall of the inner pipe is provided with a plurality of ribs for increasing the structural strength, an aerogel layer for heat insulation is arranged between the inner pipe and the outer pipe, and the outer part of the outer pipe is provided with an anticorrosive layer for corrosion resistance; the rib and the inner pipe are of an integrally formed structure; the anti-corrosion layer is an inorganic anti-corrosion coating layer; the structural strength of the protective pipe can be improved through the arrangement of the inner pipe, the outer pipe and the convex edges, and the protective effect of the protective pipe on the submarine cable is improved; the arranged aerogel layer can effectively insulate heat of the submarine cable through the protective pipe, so that the influence of external temperature on the submarine cable is avoided; through the anticorrosive coating that sets up, can increase the corrosion protection of this pillar, reduce the sea water and wear the pillar to the corruption and cause the damage of submarine cable, improved the life of pillar.

Description

Corrosion-resistant and heat-insulating submarine cable protective pipe

Technical Field

The utility model relates to a submarine cable pillar technical field specifically is corrosion-resistant adiabatic type submarine cable pillar.

Background

The submarine cable is a cable laid on the seabed and used for telecommunication transmission, and the application field of the submarine cable is wide, such as the marine oil and gas industry and the like; at present, in the laying process of a submarine cable, in order to ensure that the submarine cable is not damaged under the condition that the submarine cable is contacted with seawater, an optical cable needs to be arranged in a steel pipe, the optical cable is prevented from being broken by water pressure, is wrapped in a steel wire with extremely high integral strength and is sleeved in the copper pipe, and finally is sleeved with a protective layer made of polyethylene material; however, when the conventional protective pipe is used, because seawater has high corrosivity and the conventional submarine cable protective pipe has poor corrosion resistance, the protective pipe is easily corroded and penetrated by the seawater under the long-term corrosion action, so that the seawater directly permeates into the protective pipe to corrode the submarine cable, and the submarine cable is easily broken down and damaged.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a corrosion-resistant adiabatic type submarine cable pillar to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

the corrosion-resistant heat-insulating submarine cable protective pipe comprises a flexible protective pipe;

the protective pipe is arranged outside the submarine protection cable and used for protecting the submarine protection cable, and comprises an inner pipe and an outer pipe outside the inner pipe, a plurality of convex edges used for increasing structural strength are arranged on the outer wall of the inner pipe, an aerogel layer used for heat insulation is arranged between the inner pipe and the outer pipe, and an anticorrosive layer used for corrosion prevention is arranged outside the outer pipe;

as the utility model discloses preferred technical scheme, the bead with the inner tube is the integrated into one piece structure.

As the preferred technical scheme of the utility model, the anticorrosive coating is inorganic anticorrosive coating layer.

As the preferable technical proposal of the utility model, the thickness of the anticorrosive coating is 0.4-0.6cm.

As the utility model discloses preferred technical scheme, the fixed part sets up in the pillar outside for installation and fixed pillar, including the bottom plate, and the fixing base of bottom plate top are equipped with the detachable mounting on the fixing base, have all seted up two slots on the bottom inner wall of mounting, and the clamping ring is installed through connecting bolt in the top of mounting, and the pillar passes from between mounting and the clamping ring and is pressed from both sides tightly fixedly by mounting and clamping ring.

As the utility model discloses preferred technical scheme, two fixed slots that are used for pegging graft with the mounting bottom are seted up to the top surface of fixing base, and the cavity has been seted up to the inside of fixing base, and the erection joint has stud lead screw in the cavity, installs on the stud lead screw to be used for driving stud lead screw pivoted worm wheel, and the below meshing of worm wheel has the worm, and stud lead screw's both ends screw thread department threaded connection has the fly leaf, is fixed with two picture pegs on the fly leaf, and the picture peg is pegged graft with corresponding slot and is fixed mounting and fixing base.

As the utility model discloses preferred technical scheme, a terminal of worm passes fixing base and coaxial fixed has and is used for driving worm pivoted and twists the piece, twists the piece and is regular hexagon.

As the utility model discloses preferred technical scheme, the fixed orifices that are used for PMKD is all offered to the top surface both sides department of bottom plate.

As the utility model discloses preferred technical scheme, two guide rails are installed to the top surface of bottom plate, the guide way with guide rail sliding connection is seted up to the bottom surface of fly leaf.

As the utility model discloses preferred technical scheme, the top surface of mounting is equipped with the arc recess with pillar shape looks adaptation, the clamping ring is whole to be the semicircle with pillar shape looks adaptation.

Compared with the prior art, the beneficial effects of the utility model are that:

the structural strength of the protective pipe can be improved through the arrangement of the inner pipe, the outer pipe and the convex edges, and the protective effect of the protective pipe on the submarine cable is improved; through the arranged aerogel layer, the submarine cable can be effectively insulated through the protective pipe, and the influence of external temperature on the submarine cable is avoided; the corrosion resistance of the protective pipe can be improved through the arranged anticorrosive layer, the damage of seawater to a submarine cable caused by corrosion of the protective pipe is reduced, and the service life of the protective pipe is prolonged;

drawings

Fig. 1 is a schematic view of the overall structure of embodiment 1 of the present invention;

fig. 2 is a schematic view of the overall structure of embodiment 2 of the present invention;

fig. 3 is a sectional view of the whole structure of embodiment 2 of the present invention;

fig. 4 is an exploded view of the fixing part in embodiment 2 of the present invention;

fig. 5 is a sectional view of the fixing base in embodiment 2 of the present invention;

fig. 6 is a schematic view of a partial explosion structure of a fixing portion in embodiment 2 of the present invention.

In the figure:

1. protecting the pipe; 11. an inner tube; 12. a rib; 13. an aerogel layer; 14. an outer tube; 15. an anticorrosive layer;

2. a fixed part; 21. a base plate; 211. a fixing hole; 212. a guide rail; 22. a fixed seat; 221. fixing grooves; 222. a cavity; 23. a double-end screw rod; 24. a worm gear; 25. a worm; 251. twisting the block; 26. a movable plate; 261. inserting plates; 262. a guide groove; 27. a fixing member; 271. a slot; 28. pressing a ring; 29. and connecting the bolts.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example 1

Referring to fig. 1, the corrosion-resistant and heat-insulating submarine cable protection pipe comprises a flexible protection pipe 1, a protection pipe 1 and an outer pipe 14 arranged outside the submarine cable protection pipe and used for protecting the submarine cable, wherein the outer pipe 14 comprises an inner pipe 11 and an outer pipe 11, a plurality of ribs 12 used for increasing structural strength are arranged on the outer wall of the inner pipe 11, an aerogel layer 13 used for heat insulation is arranged between the inner pipe 11 and the outer pipe 14, and an anticorrosive layer 15 used for corrosion prevention is arranged outside the outer pipe 14; the aerogel layer 13 is arranged, so that the submarine cable can be effectively insulated through the protective pipe, and the influence of external temperature on the submarine cable is avoided; the corrosion resistance of the protective pipe 1 can be improved by the arranged anticorrosive layer 15, the damage of seawater to a submarine cable caused by corrosion of the protective pipe is reduced, and the service life of the protective pipe is prolonged;

in this embodiment, the rib 12 and the inner tube 11 are integrally formed, and the integrally formed structure has better structural strength, so that the service life of the protection tube 1 is prolonged.

In this embodiment, the anticorrosive layer 15 is an inorganic anticorrosive coating layer, the anticorrosive layer 15 is ZS-711 inorganic anticorrosive coating, and the ZS-711 inorganic anticorrosive coating anticorrosive pigment is composed of highly dispersed and activated passivated metal particles, nano graphite flakes, nano metal amphoteric oxide, ultrafine rare earth ultrafine powder and the like, and the activated anticorrosive pigment can play a role in corrosion resistance and polarization enhancement in corrosion resistance, is high in acid resistance, alkali resistance and corrosion resistance, and can reduce corrosion of seawater to the protective pipe 1.

In this embodiment, the thickness of the corrosion-resistant layer 15 is 0.4-0.6cm, and the preferable thickness of the corrosion-resistant layer 15 is 0.5cm, and the thicker corrosion-resistant layer 15 can improve the corrosion resistance of the protection pipe 1 and prolong the service life of the protection pipe 1.

When the protective pipe is used specifically, seawater directly contacts the anticorrosive layer 15, and the seawater is difficult to permeate the anticorrosive layer 15 to enter the protective pipe 1 under the action of the anticorrosive layer 15.

Example 2

Referring to fig. 2 to 6, in order to facilitate installation of the protection tube 1, the present embodiment provides the following technical solutions on the basis of embodiment 1: the fixing part 2 is arranged outside the protective pipe 1 and used for installing and fixing the protective pipe 1, and comprises a bottom plate 21 and a fixing seat 22 above the bottom plate 21, the fixing seat 22 is tightly welded with the bottom plate 21, a detachable fixing part 27 is arranged on the fixing seat 22, two slots 271 are formed in the inner wall of the bottom end of the fixing part 27, a pressing ring 28 is arranged above the fixing part 27 through a connecting bolt 29, and the protective pipe 1 penetrates through the fixing part 27 and the pressing ring 28 and is clamped and fixed by the fixing part 27 and the pressing ring 28; the top surface of the fixed seat 22 is provided with two fixed grooves 221 for being inserted into the bottom end of the fixed part 27, a cavity 222 is formed in the fixed seat 22, a double-headed screw rod 23 is installed in the cavity 222, a worm wheel 24 for driving the double-headed screw rod 23 to rotate is installed on the double-headed screw rod 23, a worm 25 is meshed below the worm wheel 24, thread parts at two ends of the double-headed screw rod 23 are connected with movable plates 26 in a threaded manner, two insertion plates 261 are fixed on the movable plates 26, the movable plates 26 are tightly welded with the insertion plates 261, the insertion plates 261 are inserted into corresponding insertion grooves 271 and fix the fixed part 27 and the fixed seat 22, the worm wheel 24 is driven to rotate by rotating the worm 25, the two movable plates 26 can be driven to synchronously and relatively move through the rotation of the double-headed screw rod 23, the insertion plates 261 and the insertion grooves 271 can be inserted into or separated from the insertion grooves 271, the fixed part 27 can be conveniently disassembled and assembled, and disassembled conveniently, and disassembled of the protective pipe 1.

In this embodiment, one end of the worm 25 passes through the fixing seat 22 and is coaxially fixed with a twisting block 251 for driving the worm 25 to rotate, the twisting block 251 is in a regular hexagon shape, the twisting block 251 is convenient to twist by a hexagonal wrench, the double-headed screw 23 is convenient to drive to rotate, and the fixing member 27 is convenient to disassemble and assemble.

In this embodiment, fixing holes 211 for fixing the bottom plate 21 are formed in both sides of the top surface of the bottom plate 21, and the fixing holes 211 are fixed to the seabed through steel rods, so that the protection pipe 1 is firmly fixed and stably installed, and is convenient to install and fix.

In this embodiment, the top surface of the fixing member 27 is provided with an arc-shaped groove adapted to the shape of the protection tube 1, the pressing ring 28 is integrally semicircular and adapted to the shape of the protection tube 1, and the protection tube 1 is clamped and fixed by the fixing member 27 and the pressing ring 28, so that the protection tube 1 is convenient to install.

In this embodiment, two guide rails 212 are installed on the top surface of the bottom plate 21, a guide groove 262 slidably connected to the guide rails 212 is formed on the bottom surface of the movable plate 26, and the arrangement of the guide rails 212 and the guide groove 262 guides the horizontal movement of the movable plate 26, thereby ensuring the stability during the horizontal movement.

It should be added that the bottom plate 21, the fixing seat 22, the fixing member 27 and the pressing ring 28 in this embodiment are made of low alloy steel, which has good seawater corrosion resistance and can provide the service life of the fixing portion 2 in seawater.

When the protective tube assembling device is used specifically, a user firstly penetrates through the space between the fixing piece 27 and the pressing ring 28, the pressing ring 28 is fixed on the fixing piece 27 through a bolt, then the user inserts the two bottom ends of the fixing piece 27 into the fixing grooves 221 in an aligning manner, then the user rotates the screwing block 251 through a hexagon wrench, the screwing block 251 drives the worm 25 to rotate, the worm wheel 24 rotates and drives the stud rod 23 to rotate due to the fact that the worm 25 is meshed with the worm wheel 24, the two movable plates 26 synchronously move relative to each other along with the rotation of the stud rod 23, at the moment, the movable plates 26 drive the inserting plates 261 to move, the inserting plates 261 are inserted into the inserting grooves 271, the fixing piece 27 is limited in the inserting grooves 271, the plurality of fixing portions 2 are sequentially installed through repeating the steps, and the installation of the protective tube 1 is completed.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only preferred examples of the present invention, and is not intended to limit the present invention, and that the present invention can have various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications all fall into the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. Corrosion-resistant adiabatic type submarine cable pillar, including flexible pillar (1), its characterized in that:

protective tube (1), set up in protecting submarine cable outside and be used for protecting submarine cable, including outer tube (14) of inner tube (11) and inner tube (11) outside, install a plurality of beads (12) that are used for increasing structural strength on the outer wall of inner tube (11), still be equipped with between inner tube (11) and outer tube (14) and be used for thermal-insulated aerogel layer (13), the externally mounted of outer tube (14) has anticorrosive coating (15) that are used for the anticorrosion.

2. A corrosion resistant, thermally insulating submarine cable protective pipe according to claim 1, wherein: the rib (12) and the inner tube (11) are of an integrally formed structure.

3. A corrosion resistant, thermally insulating submarine cable protective pipe according to claim 1, wherein: the anticorrosive coating (15) is an inorganic anticorrosive coating layer.

4. A corrosion resistant, thermally insulating submarine cable protective pipe according to claim 1, wherein: the thickness of the anticorrosive layer (15) is 0.4-0.6cm.

5. A corrosion resistant, thermally insulating submarine cable protective pipe according to claim 1, wherein: fixed part (2), set up in pillar (1) outside, be used for installation and fixed pillar (1), including bottom plate (21), and fixing base (22) of bottom plate (21) top, be equipped with detachable mounting (27) on fixing base (22), two slots (271) have all been seted up on the bottom inner wall of mounting (27), clamping ring (28) are installed through connecting bolt (29) in the top of mounting (27), pillar (1) is passed and is pressed from both sides the clamp fastening by mounting (27) and clamping ring (28) from between mounting (27) and clamping ring (28).

6. A corrosion resistant, thermally insulating submarine cable protective pipe according to claim 5, wherein: two fixed slots (221) that are used for pegging graft with mounting (27) bottom are seted up to the top surface of fixing base (22), cavity (222) have been seted up to the inside of fixing base (22), double-end lead screw (23) are installed to installation in cavity (222), install on double-end lead screw (23) and be used for driving double-end lead screw (23) pivoted worm wheel (24), the below meshing of worm wheel (24) has worm (25), the both ends screw thread department threaded connection of double-end lead screw (23) has fly leaf (26), be fixed with two picture peg (261) on fly leaf (26), picture peg (261) are pegged graft with corresponding slot (271) and are fixed mounting (27) and fixing base (22).

7. A corrosion resistant, thermally insulated, submarine cable protective pipe according to claim 6, wherein: one tail end of the worm (25) penetrates through the fixed seat (22) and is coaxially fixed with a screwing block (251) used for driving the worm (25) to rotate, and the screwing block (251) is in a regular hexagon shape.

8. A corrosion resistant, thermally insulated, submarine cable protective pipe according to claim 6, wherein: and fixing holes (211) for fixing the bottom plate (21) are formed in the two sides of the top surface of the bottom plate (21).

9. The corrosion-resistant, thermally-insulated submarine cable guard pipe according to claim 6, wherein: two guide rails (212) are mounted on the top surface of the bottom plate (21), and guide grooves (262) which are in sliding connection with the guide rails (212) are formed in the bottom surface of the movable plate (26).

10. A corrosion resistant, thermally insulated, submarine cable protective pipe according to claim 6, wherein: the top surface of mounting (27) is equipped with the arc recess with pillar (1) shape looks adaptation, clamping ring (28) are whole for the semicircle with pillar (1) shape looks adaptation.