Submarine cable protection device

Abstract

The utility model relates to the technical field of submarine cable protection equipment, in particular to a submarine cable protection device, which comprises submarine cable protection units, a plurality of submarine cable protection units are sequentially spliced to form the submarine cable protection device, and each submarine cable protection unit comprises an inner submarine cable fixing device, an elastic connecting piece and an outer protection device. The inner-layer submarine cable fixing device comprises an arc-shaped fixing part and a stabilizing part; the arc-shaped fixing part is arranged in the center of the interior of the stabilizing part, the arc-shaped fixing part is used for fixedly installing a submarine cable, the arc-shaped fixing part and the stabilizing part are connected into an integrated structure, the stabilizing part of the inner submarine cable fixing device is connected with the outer protection device through an elastic connecting piece, and the outer protection device is provided with the fixing part. And the adjacent outer-layer protection devices are connected through the fixing parts. The submarine cable protection units are sequentially spliced to realize modular splicing, so that the stability of the submarine cable protection device can be improved; and by arranging the elastic connecting piece, a buffering effect is achieved, and the preset laying position of the submarine cable is protected against displacement caused by water flow and other environments.

Description

Technical Field

[0001] This utility model relates to the field of submarine cable protection equipment technology, and in particular to a submarine cable protection device. Background Technology

[0002] The rapid development of new energy projects such as offshore wind power has led to a continuous increase in installed offshore wind power capacity, resulting in a year-on-year increase in the demand for submarine cables. The operation and maintenance of offshore wind farms require a large number of submarine cables to connect with the onshore power grid, making submarine cables a key infrastructure for offshore energy development and transmission. Furthermore, given the spatial distribution characteristics of submarine cables, the vast majority are laid on the seabed, where complex water currents cause erosion under the influence of hydrodynamic forces, leading to cable damage.

[0003] The protection of submarine cables primarily involves suppressing or reducing the scouring effect of seabed currents. Current protection technologies mainly rely on burying the cables, which is currently the most widely used protection method globally. This technology involves conducting preliminary seabed environmental surveys to determine the burial route, then burying the cable at a certain depth, placing it beneath the seabed and completely isolating it from seabed currents. This avoids the impact of scouring from currents above and to the sides of the cable. However, in actual construction and application, this technology also has several drawbacks. Construction is difficult; as water depth increases, factors such as strong ocean currents and geological changes significantly increase the difficulty of trench laying, making cable positioning challenging. Furthermore, with increasing service life, cable fatigue, aging, or failure necessitates extensive excavation for maintenance, further complicating the process. Patent document with application number 202410004126.X discloses a submarine cable protection device, which discloses a first counterweight block and a second counterweight block arranged above the first counterweight block. The top surface of the first counterweight block has multiple first engagement grooves. Multiple first fastening bolts are inserted through the top surface of the second counterweight block. When the first counterweight block and the second counterweight block are installed together, the first fastening bolts penetrate the second counterweight block and are inserted into the first engagement grooves. This device is heavy and cumbersome to operate. Utility Model Content

[0004] To address the aforementioned technical problems in the existing technology, this utility model provides a submarine cable protection device.

[0005] To achieve the above objectives, this utility model proposes a submarine cable protection device, comprising: a submarine cable protection unit, wherein multiple submarine cable protection units are sequentially spliced ​​to form the submarine cable protection device; the submarine cable protection unit includes an inner submarine cable fixing device, an elastic connector, and an outer protection device; the inner submarine cable fixing device includes an arc-shaped fixing part and a stabilizing part; the arc-shaped fixing part is located at the inner center of the stabilizing part, and the arc-shaped fixing part is used to fix and install the submarine cable, and the arc-shaped fixing part is connected to the stabilizing part to form an integral structure; the stabilizing part of the inner submarine cable fixing device is connected to the outer protection device through the elastic connector; the outer protection device is provided with a fixing part, and adjacent outer protection devices are connected through the fixing part. The submarine cable protection units are assembled sequentially to achieve modular splicing, which not only fixes the submarine cable but also provides erosion protection and increases the stability of the protection device. The simple structure, achieved through the use of arc-shaped fixing parts, effectively positions and secures the submarine cable. An outer protection device, with its two external inclined plates connected by hinges and elastic connectors between the inner and outer plates, buffers and reduces the impact of water flow, preventing erosion damage from water flow from both sides of the cable. Elastic connectors between the inner cable fixing device and the outer protection device further buffer the cable, protecting it from displacement caused by water flow or other environmental factors at its intended laying position.

[0006] As an optional implementation, in the submarine cable protection device provided by this utility model, the stabilizing part includes a top plate, a first side plate, and a second side plate. The first side plate and the second side plate are respectively provided on both sides of the top plate. The first side plate and the second side plate are inclined, and the top plate, the first side plate, and the second side plate form a trapezoidal structure. By providing the stabilizing part, the stability of the device can be enhanced, and the arc-shaped fixing part can be stably installed to fix the submarine cable.

[0007] As an optional implementation, in the submarine cable protection device provided by this utility model, the arc-shaped fixing part includes a first arc-shaped part, a second arc-shaped part, and a third arc-shaped part. The first arc-shaped part is connected to the top plate, the second arc-shaped part is connected to the end of the first side plate, and the third arc-shaped part is connected to the end of the second side plate. By setting the arc-shaped fixing part to actually contact the submarine cable, the position of the submarine cable is fixed. At the same time, in conjunction with the stabilizing part and the outer protective device, the counterweight of the entire protection device is increased, ensuring fixation to the seabed and protecting the submarine cable laying position from the influence of water flow and other environmental factors.

[0008] As an optional implementation, in the submarine cable protection device provided by this utility model, a through hole is provided at the connection between the top plate and the first arc-shaped part. Providing a through hole at the connection between the top plate and the first arc-shaped part saves costs, allows the incoming flow to pass through the hollow hole, achieving a diversion effect, reducing the impact of water flow on the device, and also contributing to the stability of the device.

[0009] As an optional implementation, in the submarine cable protection device provided by this utility model, one end of the stabilizing part is provided with an inner connector, and the other end of the stabilizing part is provided with an outer connector. The inner connector of the stabilizing part can be inserted into the outer connector of the adjacent stabilizing part, and the two are fixedly connected by bolts. By setting the inner and outer connectors, multiple submarine cable protection units can be spliced ​​together, which facilitates subsequent construction. The submarine cable protection units can be spliced ​​in sections according to area, which reduces the construction cost of the overall device laying, is easy to operate, and can speed up the construction efficiency of submarine cable laying.

[0010] As an optional implementation, in the submarine cable protection device provided by this utility model, the outer protection device includes a horizontal top plate and inclined guard plates. The inclined guard plates are provided on both sides of the horizontal top plate and are hinged to the horizontal top plate. The two inclined guard plates are arranged at an angle, and both inclined guard plates are connected to the stabilizing part through the elastic connector. The connection between the outer two inclined guard plates and the horizontal top plate via hinges, and the cooperation between the inner and outer protection devices via a centrally located elastic connector, achieves buffering and reduction of water flow impact, thus reducing the impact force of the water flow while providing a buffering effect.

[0011] As an optional implementation, in the submarine cable protection device provided by this utility model, one end of the inclined guard plate is provided with an inner connecting part, and the other end of the inclined guard plate is provided with an outer connecting part. The inner connecting part of the inclined guard plate can be inserted into the outer connecting part of the adjacent inclined guard plate, and the two are fixedly connected by bolts. By setting the inner and outer connecting parts, multiple submarine cable protection units can be spliced ​​together, enhancing the fixing effect. The submarine cable protection units can be spliced ​​in sections according to area, reducing the construction cost of the overall device laying, making operation convenient, and accelerating the construction efficiency of submarine cable laying.

[0012] As an optional implementation, in the submarine cable protection device provided by this utility model, the submarine cable protection unit includes multiple elastic connectors, and the inner submarine cable fixing device is connected to the outer protection device through multiple elastic connectors. Multiple elastic connectors are installed between the inner submarine cable fixing device and the outer protection device. The specific number and strength of the elastic connectors can be determined according to the scouring intensity of the laying area. The elastic connectors are fixed to the inner submarine cable fixing device and the outer protection device through protective rings at the plate connections at both ends. Under the influence of water flow, some water flows out in both directions towards the parallel inclined protective plate, while some water directly impacts the inclined protective plate. The elastic connectors are compressed, and the force is suppressed. This dynamic change process can reduce some of the water flow impact force, thus protecting the inner submarine cable fixing device from water flow impact and protecting the submarine cable.

[0013] Compared with the prior art, the beneficial effects of this utility model's technical solution are as follows:

[0014] The submarine cable protection device provided by this utility model, by setting up submarine cable protection units, is formed by sequentially splicing multiple submarine cable protection units. The sequential splicing of the submarine cable protection units achieves modular splicing, which not only fixes the submarine cable but also provides anti-erosion protection and increases the stability of the submarine cable protection device. It is composed of an inner submarine cable fixing device, an elastic connector, and an outer protection device. The inner submarine cable fixing device includes an arc-shaped fixing part and a stabilizing part; the arc-shaped fixing part is located at the center of the stabilizing part and is used to fix and install the submarine cable. The arc-shaped fixing part and the stabilizing part are connected as an integral structure. The stabilizing part of the inner submarine cable fixing device is connected to the outer layer via an elastic connector. The protective device is connected, with a fixing part on the outer protective device, and adjacent outer protective devices are connected through the fixing part; the arc-shaped fixing part simplifies the structure and allows for effective positioning and fixation of the submarine cable; the outer protective device, with its two outer inclined plates connected by hinges and elastic connectors between the inner and outer plates, buffers and reduces the impact of water flow, preventing scouring and damage to the submarine cable from water flow from both sides of the cable; the inner submarine cable fixing device and the outer protective device are connected by elastic connectors, which also act as a buffer, protecting the cable from displacement caused by water flow or other environmental factors at the planned laying position.

[0015] II. The submarine cable protection device provided by this utility model, by setting a horizontal top plate and inclined guard plates, with inclined guard plates on both sides of the horizontal top plate, the inclined guard plates are hinged to the horizontal top plate, the two inclined guard plates are set at an angle, and both inclined guard plates are connected to the stabilizing part through elastic connectors. The outer two inclined guard plates are connected to the horizontal top plate through hinges, and the inner and outer protection devices are cooperated through a central elastic connector, so as to achieve buffering and reduction of water flow impact, play a buffering role, and reduce the impact force of water flow. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0017] Figure 1 A schematic diagram of the structure of the submarine cable protection unit of the submarine cable protection device provided by this utility model;

[0018] Figure 2 A top view of the submarine cable protection unit of the submarine cable protection device provided by this utility model;

[0019] Figure 3 A side view of the submarine cable protection unit of the submarine cable protection device provided by this utility model;

[0020] Figure 4 A schematic diagram of the inner submarine cable fixing device provided by this utility model.

[0021] [Explanation of Labels in the Attached Image]

[0022] 1. Inner submarine cable fixing device; 11. Arc-shaped fixing part; 111. First arc-shaped part; 112. Second arc-shaped part; 113. Third arc-shaped part; 12. Stabilizing part; 121. Top plate; 122. First side plate; 123. Second side plate; 13. Through hole; 14. Inner connector; 15. Outer connector;

[0023] 2. Flexible connectors;

[0024] 3. Outer protective device; 31. Horizontal top plate; 32. Sloping guard plate; 321. Inner connecting part; 322. Outer connecting part;

[0025] 4. Fixing part. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] It should be noted that all directional indications in this utility model embodiment, such as first, second, up, down, left, right, front, back, etc., are only used to explain the relative positional relationship and movement of the components in a specific posture as shown in the attached figure. If the specific posture changes, the directional indication will also change accordingly.

[0028] Furthermore, the technical solutions of the various embodiments of this utility model can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0029] This utility model provides a submarine cable protection device, such as Figures 1-4 As shown, it includes: a submarine cable protection unit, multiple submarine cable protection units are sequentially spliced ​​to form the submarine cable protection device, the submarine cable protection unit includes an inner submarine cable fixing device 1, an elastic connector 2 and an outer protection device 3, the inner submarine cable fixing device 1 includes an arc-shaped fixing part 11 and a stabilizing part 12; the arc-shaped fixing part 11 is located at the center of the inside of the stabilizing part 12, the arc-shaped fixing part 11 is used to fix the submarine cable, and the arc-shaped fixing part 11 and the stabilizing part 12 are connected to form an integral structure, the stabilizing part 12 of the inner submarine cable fixing device 1 is connected to the outer protection device 3 through the elastic connector 2, the outer protection device 3 is provided with a fixing part 4, and adjacent outer protection devices 3 are connected through the fixing part 4. The submarine cable protection units are sequentially spliced ​​to achieve modular splicing, which not only fixes the submarine cable but also provides anti-scouring protection and increases the stability of the submarine cable protection device. The arc-shaped fixing part 11 has a simple structure and can effectively position and fix the submarine cable. The outer protection device 3 is set up, and the inclined guard plates 32 on both sides of the outer protection device 3 cooperate with the inner and outer guard plates to buffer and reduce the impact of water flow. It plays a buffering role and reduces the impact force of water flow, preventing the submarine cable from being scour and damaged by water flow from both sides of the submarine cable. The elastic connector 2 is set between the inner submarine cable fixing device 1 and the outer protection device 3 to play a buffering role and protect the submarine cable from displacement caused by water flow and other environmental factors when it is laid. The elastic connector is a spring.

[0030] like Figure 2As shown, in the submarine cable protection device provided by this utility model, the stabilizing part 12 includes a top plate 121, a first side plate 122, and a second side plate 123. The first side plate 122 and the second side plate 123 are respectively provided on both sides of the top plate 121. The first side plate 122 and the second side plate 123 are inclined, and the top plate 121, the first side plate 122, and the second side plate 123 form a trapezoidal structure. By providing the stabilizing part 12, the stability of the device can be enhanced, and the arc-shaped fixing part 11 can be stably installed to fix the submarine cable.

[0031] In the submarine cable protection device provided by this utility model, such as Figure 2 As shown, the arc-shaped fixing part 11 includes a first arc-shaped part 111, a second arc-shaped part 112, and a third arc-shaped part 113. The first arc-shaped part 111 is connected to the top plate 121, the second arc-shaped part 112 is connected to the end of the first side plate 122, and the third arc-shaped part 113 is connected to the end of the second side plate 123. By setting the arc-shaped fixing part 11 to actually contact the submarine cable, the position of the submarine cable is fixed. At the same time, it works in conjunction with the stabilizing part 12 and the outer protective device 3 to increase the counterweight of the entire protective device, ensuring fixation to the seabed and protecting the submarine cable laying position from the influence of water flow and other environmental factors.

[0032] Furthermore, in the submarine cable protection device provided by this utility model, a central through hole 13 is provided at the connection between the top plate 121 and the first arc-shaped part 111. The central through hole 13 at the connection between the top plate 121 and the first arc-shaped part 111 can save costs, allow the incoming flow to flow through the hollow hole, achieve the diversion effect, reduce the impact of water flow on the device, and also help stabilize the device.

[0033] In addition, one end of the stabilizing part 12 is provided with an inner connector 14, and the other end of the stabilizing part 12 is provided with an outer connector 15. The inner connector 14 of the stabilizing part 12 can be inserted into the outer connector 15 of the adjacent stabilizing part 12, and the two are fixedly connected by bolts. By setting the inner and outer connectors 15, it is convenient to splice and connect multiple submarine cable protection units, which facilitates subsequent construction. The submarine cable protection units are spliced ​​in sections according to area, which reduces the construction cost of the overall device laying, is easy to operate, and can speed up the construction efficiency of submarine cable laying.

[0034] like Figure 1As shown, in the submarine cable protection device provided by this utility model, the outer protection device 3 includes a horizontal top plate 31 and inclined guard plates 32. The inclined guard plates 32 are provided on both sides of the horizontal top plate 31. The inclined guard plates 32 are hinged to the horizontal top plate 31, and the two inclined guard plates 32 are arranged at an angle. Both inclined guard plates 32 are connected to the stabilizing part 12 through the elastic connector 2. The external inclined guard plates 32 are connected to the horizontal top plate 31 through hinges, and the inner and outer protection devices cooperate through the centrally located elastic connector 2, achieving buffering and reduction of water flow impact, thus reducing the impact force of the water flow while providing a buffering effect.

[0035] To enhance the fixing effect, in the submarine cable protection device provided by this utility model, one end of the inclined guard plate 32 is provided with an inner connecting part 321, and the other end of the inclined guard plate 32 is provided with an outer connecting part 322. The inner connecting part 321 of the inclined guard plate 32 can be inserted into the outer connecting part 322 of the adjacent inclined guard plate 32, and the two are fixedly connected by bolts. By setting the inner and outer connecting parts 322, it is convenient to splice and connect multiple submarine cable protection units, thereby enhancing the fixing effect. By splicing the submarine cable protection units in sections according to regions, the construction cost of the overall device laying is reduced, the operation is convenient, and the construction efficiency of submarine cable laying can be accelerated.

[0036] Furthermore, the submarine cable protection unit includes multiple elastic connectors 2, and the inner submarine cable fixing device 1 is connected to the outer protection device 3 through multiple elastic connectors 2. Multiple elastic connectors 2 are installed between the inner submarine cable fixing device 1 and the outer protection device 3. The specific number and strength of the elastic connectors 2 can be determined according to the scouring intensity of the laying area. The elastic connectors 2 are fixed to the inner submarine cable fixing device 1 and the outer protection device 3 through protective rings at both ends of the plate connection. Under the influence of water flow, some water flows out in both directions towards the parallel inclined guard plate 32, and some water directly impacts the inclined guard plate 32. The elastic connectors 2 are compressed, and the force is suppressed. This dynamic change process can reduce some of the water flow impact force, thus protecting the inner submarine cable fixing device 1 from water flow impact and protecting the submarine cable.

[0037] Furthermore, this utility model also provides a protection method based on the above-described submarine cable protection device, comprising the following steps:

[0038] S1: Determine the installation location of the submarine cable, splice and connect multiple submarine cable protection units, and fix the submarine cable in the arc-shaped fixing part 11 after splicing.

[0039] S2: Throw stones into the stabilizing part 12 of the assembled submarine cable protection device;

[0040] S3: Repeat the above steps to perform multi-stage splicing and rock throwing to secure the entire submarine cable.

[0041] In the above-mentioned protection method of the submarine cable protection device, multiple submarine cable protection units are spliced ​​together in sequence to form the submarine cable protection device. While fixing the submarine cable, it also plays a role in preventing erosion and increasing the stability of the submarine cable protection device. Rocks or other fillers are placed in the stable part 12 of the spliced ​​submarine cable protection device to increase the weight of the submarine cable protection device itself and fix the entire submarine cable protection device to the seabed. The submarine cable is doubly protected from erosion and can play a long-term protective role. It will not be overturned by the water flow. The self-weight and structure of the device can ensure that it is fixed in the ocean current for a long time.

[0042] It should be understood that the above description of the specific embodiments of this utility model is only for illustrating the technical route and features of this utility model, and its purpose is to enable those skilled in the art to understand the content of this utility model and implement it accordingly. However, this utility model is not limited to the specific embodiments described above. All changes or modifications made within the scope of the claims of this utility model should be covered by the protection scope of this utility model.

Claims

1. A submarine cable protection device, characterized in that, Submarine cable protection unit, multiple submarine cable protection units are spliced ​​together in sequence to form the submarine cable protection device. The submarine cable protection unit includes an inner submarine cable fixing device (1), an elastic connector (2) and an outer protection device (3). The inner submarine cable fixing device (1) includes an arc-shaped fixing part (11) and a stabilizing part (12). The arc-shaped fixing part (11) is located at the center of the inside of the stabilizing part (12). The arc-shaped fixing part (11) is used to fix the submarine cable. The arc-shaped fixing part (11) and the stabilizing part (12) are connected to form an integral structure. The stabilizing part (12) of the inner submarine cable fixing device (1) is connected to the outer protection device (3) through the elastic connector (2). The outer protection device (3) is provided with a fixing part (4). Adjacent outer protection devices (3) are connected through the fixing part (4).

2. The submarine cable protection device according to claim 1, characterized in that, The stabilizing part (12) includes a top plate (121), a first side plate (122), and a second side plate (123). The top plate (121) has the first side plate (122) and the second side plate (123) respectively on both sides. The first side plate (122) and the second side plate (123) are inclined. The top plate (121), the first side plate (122), and the second side plate (123) form a trapezoidal structure.

3. The submarine cable protection device according to claim 2, characterized in that, The arc-shaped fixing part (11) includes a first arc-shaped part (111), a second arc-shaped part (112) and a third arc-shaped part (113). The first arc-shaped part (111) is connected to the top plate (121), the second arc-shaped part (112) is connected to the end of the first side plate (122), and the third arc-shaped part (113) is connected to the end of the second side plate (123).

4. The submarine cable protection device according to claim 3, characterized in that, A through hole (13) is provided at the connection between the top plate (121) and the first arc-shaped part (111).

5. The submarine cable protection device according to claim 1, characterized in that, One end of the stabilizing part (12) is provided with an inner connector (14), and the other end of the stabilizing part (12) is provided with an outer connector (15). The inner connector (14) of the stabilizing part (12) can be inserted into the outer connector (15) of the adjacent stabilizing part (12), and the two are fixedly connected by bolts.

6. The submarine cable protection device according to claim 1, characterized in that, The outer protective device (3) includes a horizontal top plate (31) and an inclined guard plate (32). The inclined guard plate (32) is provided on both sides of the horizontal top plate (31). The inclined guard plate (32) is hinged to the horizontal top plate (31). The two inclined guard plates (32) are inclined. Both inclined guard plates (32) are connected to the stabilizing part (12) through the elastic connector (2).

7. The submarine cable protection device according to claim 6, characterized in that, One end of the inclined guard plate (32) is provided with an inner connecting part (321), and the other end of the inclined guard plate (32) is provided with an outer connecting part (322). The inner connecting part (321) of the inclined guard plate (32) can be inserted into the outer connecting part (322) of the adjacent inclined guard plate (32), and the two are fixedly connected by bolts.

8. The submarine cable protection device according to claim 1, characterized in that, The submarine cable protection unit includes multiple elastic connectors (2), and the inner submarine cable fixing device (1) is connected to the outer protection device (3) through multiple elastic connectors (2).

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