Submarine cable inlet wire arrangement device for J-shaped pipe of pile body

Abstract

The utility model discloses a submarine cable inlet wire arrangement device for a J-shaped pipe of a pile body, and belongs to the technical field of offshore wind power engineering. Comprising a steel pipe pile provided with a first through hole. The structure further comprises a J-shaped pipe body penetrating through the first penetrating hole, one end of the J-shaped pipe body is obliquely downwards located on the outer side of the steel pipe pile, and the other end of the J-shaped pipe body is obliquely upwards located in the steel pipe pile. The J-shaped pipe body comprises a lower horn mouth, a straight section, a bent section and an upper horn mouth which are sequentially connected. Wherein the lower horn mouth is located outside the steel pipe pile, the straight section penetrates through the first through hole, and the bent section and the upper horn mouth are located inside the steel pipe pile and extend towards the top end of the steel pipe pile. The first through hole has the inclination angle, so that the J-shaped pipe body integrally extends towards the top end of the steel pipe pile after penetrating through the first through hole, and the deployment height of the fan single-pile foundation accessory structure can be effectively controlled in combination with the design of the bent section in the J-shaped pipe body.

Description

Technical Field

[0001] This application relates to the field of offshore wind power engineering technology, and in particular to a J-shaped tube submarine cable entry arrangement device for a pile body. Background Technology

[0002] With increasing global emphasis on reducing carbon emissions and addressing climate change, offshore wind power, as a clean energy source, has received growing attention due to its enormous development potential and environmental friendliness. Currently, monopile foundations are the most widely used foundation type in offshore wind power projects. In water depths of 0-30m, monopile foundations are generally sufficient to meet the turbine load and environmental conditions of the project.

[0003] The auxiliary structures of a wind turbine monopile foundation mainly include an outer platform, anti-collision components, ladders, cathodic protection, and external J-tubes. Typically, the flared end of the J-tube is located 2.5m above the seabed. The submarine cable extends through the J-tube on the auxiliary components to the outer platform, then enters the tower through a cable hole on the tower, and finally connects to the wind turbine at the top of the tower. However, when the water depth is deep, in order to avoid the auxiliary structures being designed too high due to the arrangement of the J-tubes, holes are generally drilled in the steel pipe piles at an elevation of about 2.5m above the seabed. The submarine cable enters directly through the hole in the steel pipe pile, without the need for cable conduits, thereby reducing the amount of engineering work for the auxiliary structures and their corresponding wave and current loads.

[0004] While the method of using a hole in the pile for the submarine cable entry can save on the amount of auxiliary components, it cannot use a central clamp that is easy to construct. Instead, it must use a barbed cable protection device, which is more expensive and more difficult to construct. This will increase equipment and construction costs. At the same time, the hole in the pile directly interacts with the barbed cable protection device, which also has a certain adverse impact on the structural safety of the pile itself. Summary of the Invention

[0005] The purpose of this application is to provide a J-shaped tube submarine cable entry device for pile body, which solves the problems in the prior art that the use of external J-shaped tubes in deeper waters results in excessively high auxiliary structures, and that the use of pile body opening for cable entry is costly and detrimental to the safety of the pile body structure.

[0006] To solve the above-mentioned technical problems, this application adopts the following technical solution:

[0007] This application provides a J-type tube submarine cable entry arrangement device for a pile body, comprising:

[0008] Steel pipe pile, wherein the steel pipe pile is provided with a first through hole;

[0009] The J-shaped tube body passes through the first perforation, with one end of the J-shaped tube body inclined downwards and located outside the steel pipe pile, and the other end inclined upwards and located inside the steel pipe pile;

[0010] A support plate is used to fix the J-shaped tube body.

[0011] Optionally, the J-shaped pipe body includes a lower flared end, a straight section, a curved section, and an upper flared end connected in sequence. The lower flared end is located outside the steel pipe pile, the straight section passes through the first through hole, and the curved section and the upper flared end are located inside the steel pipe pile and extend toward the top of the steel pipe pile.

[0012] This solution integrates a J-shaped tube body with a steel pipe pile. By creating a first perforation in the steel pipe pile and inserting the J-shaped tube within it, the submarine cable can smoothly enter the pile through the J-shaped tube body without requiring costly barbed cable protection devices. Furthermore, because the J-shaped tube body is inserted into the first perforation of the steel pipe pile at an angle, the deployment height of the wind turbine monopile foundation's auxiliary structures can be reduced, avoiding the excessive height issues associated with traditional external J-shaped tubes. The J-shaped tube in this solution employs a lower flared section, a straight section, a curved section, and an upper flared section, effectively controlling the deployment height of the wind turbine monopile foundation's auxiliary structures. In addition, this solution allows for the use of a central clamp for cable entry, which not only reduces project costs but also simplifies subsea construction. The solution also uses support plates to fix the J-shaped tube body, ensuring its stability.

[0013] Optionally, the support plate includes a first support plate and a second support plate; one end of the first support plate is fixedly connected to the inner wall of the steel pipe pile, and the other end is fixedly connected to the bend; one end of the second support plate is fixedly connected to the inner wall of the steel pipe pile, and the other end is fixedly connected to the straight section.

[0014] In this design, one end of the first support plate is fixedly connected to the inner wall of the steel pipe pile, and the other end is fixedly connected to the bend, effectively preventing the bend from tilting or falling. Simultaneously, one end of the second support plate is fixedly connected to the inner wall of the steel pipe pile, and the other end is fixedly connected to the straight section. This allows the second support plate to bear the pressure and support of the straight section, preventing it from falling or deforming due to gravity or external forces. In summary, the first and second support plates work together in this design to ensure the stability and safety of the J-shaped pipe body within the steel pipe pile.

[0015] Optionally, the second support plate may have multiple plates.

[0016] Optionally, the support plate is corner-welded to both the steel pipe pile and the J-shaped pipe body. The weld joint in the corner-welded connection forms a robust triangular structure. This ensures that the support plate is perpendicular to both the steel pipe pile and the J-shaped pipe body. This perpendicular connection not only increases the structural stability but also allows the connection to withstand greater forces and pressures, thus ensuring that the support plate will not loosen or detach due to stress during long-term use.

[0017] Optionally, a reinforcing plate is also included, which is disposed on the steel pipe pile. The reinforcing plate is provided with a second through hole that communicates with the first through hole. The first through hole and the second through hole have the same shape.

[0018] A reinforcing plate is installed on the steel pipe pile, and it has a second perforation that communicates with the first perforation. The two perforations have the same shape to ensure smooth passage of the submarine cable. The reinforcing plate not only increases the wall thickness of the steel pipe pile at the first perforation but also effectively enhances the load-bearing capacity of that area through its own strength and rigidity. The reinforcing plate is fixed to the steel pipe pile by welding, forming a unified whole with it. Thus, when the submarine cable enters the steel pipe pile through the J-shaped tube body, the reinforcing plate can withstand the various forces and pressures generated, preventing deformation or breakage of the steel pipe pile at the first perforation, thereby ensuring the structural safety of the steel pipe pile.

[0019] Furthermore, the design of the reinforcing plate offers a degree of flexibility. The thickness, size, and shape of the reinforcing plate can be adjusted according to actual needs and the dimensions of the steel pipe piles to achieve the best reinforcement effect.

[0020] Optionally, the reinforcing plate has two parts, which are respectively disposed on the inner side wall and the outer side wall of the steel pipe pile.

[0021] By simultaneously installing inner and outer reinforcing plates, a more comprehensive and balanced reinforcement effect can be achieved. This not only improves the strength and rigidity of the steel pipe pile at the first borehole but also enhances the stability and durability of the entire structure.

[0022] Optionally, the support plate is connected to the steel pipe pile through the reinforcing plate, and the support plate is respectively corner-welded to the reinforcing plate and the J-shaped pipe body.

[0023] In this design, the reinforcing plate serves as a support for the J-shaped tube body, preventing the forces generated by the J-shaped tube body from being directly concentrated on the steel pipe pile, thus significantly enhancing the strength and stability of the internal structure of the steel pipe pile. When the submarine cable enters the steel pipe pile through the J-shaped tube body, the reinforcing plate effectively disperses these forces, preventing deformation or damage to the interior of the steel pipe pile.

[0024] Compared with existing technologies, the beneficial effects achieved by this application are as follows: This application combines the J-shaped tube body with the steel pipe pile. By creating a first perforation in the steel pipe pile, the J-shaped tube is inserted and fixed by a support plate. The submarine cable can smoothly enter the interior of the steel pipe pile through the J-shaped tube body without the need for a costly barbed cable protection device. Simultaneously, because the J-shaped tube body is inserted into the first perforation of the steel pipe pile at an angle, the deployment height of the wind turbine monopile foundation auxiliary structures can be reduced, avoiding the problem of excessively high auxiliary structures caused by traditional external J-shaped tubes. Furthermore, the J-shaped tube in this application adopts a structure with a lower flared end, a straight section, a curved section, and an upper flared end, which can also effectively control the deployment height of the wind turbine monopile foundation auxiliary structures. In addition, this application allows the use of a central clamp for submarine cable entry, which not only reduces project costs but also simplifies the difficulty of subsea construction. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this disclosure 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 disclosure. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of the overall structure of some embodiments provided in this application;

[0027] Figure 2 This is a schematic diagram of the overall structure of some embodiments provided in this application;

[0028] Figure 3 These are schematic diagrams of the inner side view of steel pipe piles from some embodiments provided in this application;

[0029] Figure 4 This is a schematic diagram of the steel pipe pile structure from the outside of some embodiments provided in this application.

[0030] Explanation of reference numerals in the attached figures:

[0031] 1-Steel pipe pile; 2-J-shaped pipe body; 3-Support plate; 4-Reinforcing plate; 11-First perforation; 21-Lower flared end; 22-Straight section; 23-Bent section; 24-Upper flared end; 31-First support plate; 32-Second support plate; 41-Second perforation. Detailed Implementation

[0032] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this disclosure / application, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit this application or its application or use.

[0033] Example 1

[0034] This embodiment describes a device for arranging submarine cables in a J-shaped pipe on a pile body, with reference to... Figure 1 and Figure 2 The J-shaped tube submarine cable entry device in this embodiment includes a steel pipe pile 1 with a first through hole 11. It also includes a J-shaped tube body 2 passing through the first through hole 11. One end of the J-shaped tube body is inclined downwards and located outside the steel pipe pile, while the other end is inclined upwards and located inside the steel pipe pile. The J-shaped tube body 2 includes a lower flared end 21, a straight section 22, a bent section 23, and an upper flared end 24 connected in sequence. The lower flared end 21 is located outside the steel pipe pile 1, the straight section passes through the first through hole 11, and the bent section 23 and the upper flared end 24 are located inside the steel pipe pile 1 and extend towards the top of the steel pipe pile 1. In this embodiment, the first through hole 11 has an inclination angle, so that the J-shaped tube body 2 extends towards the top of the steel pipe pile 1 after passing through the first through hole 11. Combined with the design of the bent section 23 in the J-shaped tube body 2, the deployment height of the wind turbine monopile foundation auxiliary structure can be effectively controlled.

[0035] This solution integrates the J-shaped tube body 2 with the steel pipe pile 1. By creating a first perforation 11 in the steel pipe pile 1 and inserting the J-shaped tube into it, the submarine cable can smoothly enter the steel pipe pile 1 through the J-shaped tube body 2 without the need for a costly barbed cable protection device. Furthermore, since the J-shaped tube body 2 is inserted into the first perforation 11 of the steel pipe pile 1 at an angle, the deployment height of the wind turbine monopile foundation auxiliary structures can be reduced, avoiding the problem of excessively high auxiliary structures caused by traditional external J-shaped tubes. Moreover, the J-shaped tube in this solution uses a structure with a lower flared end 21, a straight section 22, a curved section 23, and an upper flared end 24, which also effectively controls the deployment height of the wind turbine monopile foundation auxiliary structures. In addition, this solution allows the use of a central clamp for cable entry, which not only reduces project costs but also simplifies subsea construction.

[0036] In this embodiment, the position of the J-shaped pipe body 2 is fixed by the support plate 3, thereby ensuring the stability of the J-shaped pipe body 2. Specifically, the support plate 3 includes a first support plate 31 and a second support plate 32. One end of the first support plate 31 is fixedly connected to the inner wall of the steel pipe pile 1, and the other end is fixedly connected to the bend 23. One end of the second support plate 32 is fixedly connected to the inner wall of the steel pipe pile 1, and the other end is fixedly connected to the straight section 22. In one embodiment, there are multiple second support plates 32. The fixed connection of one end of the first support plate 31 to the inner wall of the steel pipe pile 1 and the other end to the bend 23 effectively prevents the bend from tilting or falling. At the same time, multiple second support plates 32 are fixedly connected to the inner wall of the steel pipe pile 1 and the other end to the straight section 22. This allows the second support plates 32 to bear the pressure and support of the straight section 22, preventing the straight section 22 from falling or deforming due to gravity or external forces. The first support plate 31 and the second support plate 32 work together in this scheme to ensure the stability and safety of the J-shaped pipe body 2 in the steel pipe pile 1.

[0037] In this embodiment, the support plate 3 is corner-welded to both the steel pipe pile 1 and the J-shaped pipe body 2. The welded joint in the corner-welded connection forms a robust triangular structure. This ensures that the support plate 3 is perpendicular to both the steel pipe pile 1 and the J-shaped pipe body 2. This perpendicular connection not only increases the stability of the structure but also allows the connection to withstand greater forces and pressures, thus ensuring that the support plate 3 will not loosen or detach due to stress during long-term use.

[0038] Example 2:

[0039] Based on the same inventive concept as Embodiment 1, refer to Figure 3 and Figure 4 The J-shaped tube submarine cable entry device in this embodiment includes a steel pipe pile 1 with a first through hole 11. It also includes a J-shaped tube body 2 passing through the first through hole 11. One end of the J-shaped tube body is inclined downwards and located outside the steel pipe pile, while the other end is inclined upwards and located inside the steel pipe pile. The J-shaped tube body 2 includes a lower flared end 21, a straight section 22, a bent section 23, and an upper flared end 24 connected in sequence. The lower flared end 21 is located outside the steel pipe pile 1, the straight section passes through the first through hole 11, and the bent section 23 and the upper flared end 24 are located inside the steel pipe pile 1 and extend towards the top of the steel pipe pile 1.

[0040] This embodiment also includes a reinforcing plate 4, which is disposed on the steel pipe pile 1. The reinforcing plate 4 is provided with a second through hole 41 that communicates with the first through hole 11. The first through hole 11 and the second through hole 41 have the same hole shape.

[0041] A reinforcing plate 4 is installed on the steel pipe pile 1, and it has a second perforation 41 that communicates with the first perforation 11. The shapes of the two perforations are consistent to ensure that the submarine cable can pass through smoothly. The reinforcing plate 4 not only increases the wall thickness of the steel pipe pile 1 at the first perforation 11, but also effectively improves the load-bearing capacity of this area through its own strength and rigidity. The reinforcing plate 4 is fixed to the steel pipe pile 1 by welding, forming an integral whole with the steel pipe pile 1. In this way, when the submarine cable enters the interior of the steel pipe pile 1 through the J-shaped tube body 2, the reinforcing plate 4 can withstand the various forces and pressures generated therefrom, preventing the steel pipe pile 1 from deforming or breaking at the first perforation 11, thereby ensuring the structural safety of the steel pipe pile 1.

[0042] Furthermore, the design of the reinforcing plate 4 offers a degree of flexibility. The thickness, size, and shape of the reinforcing plate 4 can be adjusted according to actual needs and the dimensions of the steel pipe pile 1 to achieve the optimal reinforcement effect. In this embodiment, the reinforcing plate 4 is circular. The circular design allows the reinforcing plate 4 to more evenly bear the effects of various forces.

[0043] In this example, there are two reinforcing plates 4, which are symmetrically arranged on the inner and outer sidewalls of the steel pipe pile 1, respectively. By simultaneously installing the inner and outer reinforcing plates 4, a more comprehensive and balanced reinforcement effect can be achieved. This not only improves the strength and rigidity of the steel pipe pile 1 at the first perforation 11, but also enhances the stability and durability of the entire structure.

[0044] In this embodiment, the position of the J-shaped tube body 2 is fixed by a support plate 3. Specifically, the support plate 3 includes a first support plate 31 and a second support plate 32. One end of the first support plate 31 is fixedly connected to the inner wall of the steel pipe pile 1, and the other end is fixedly connected to the bend 23. One end of the second support plate 32 is corner-welded to a support plate located inside the steel pipe pile 1, and the other end is corner-welded to the straight section 22. In this embodiment, the reinforcing plate 4 serves as a support for the J-shaped tube body 2, preventing the force generated by the J-shaped tube body 2 from being directly concentrated on the steel pipe pile 1, which can significantly enhance the strength and stability of the internal structure of the steel pipe pile 1. When the submarine cable enters the interior of the steel pipe pile 1 through the J-shaped tube body 2, the reinforcing plate 4 can effectively disperse these forces, preventing deformation or damage to the interior of the steel pipe pile 1.

[0045] In the production and use of this embodiment, the steel pipe pile 1, lower flared end 21, straight section 22, curved section 23, upper flared end 24, reinforcing plate 4, and support plate 3 can be manufactured by welding in the factory. Among them, the lower flared end 21, straight section 22, curved section 23, and upper flared end 24 are integrally formed by butt welding. After the steel pipe pile 1 is driven into the ground, the submarine cable is fed through the J-shaped tube body 2 using a central clamp, with the direction of entry being the lower flared end 21, straight section 22, curved section 23, and upper flared end 24 in sequence.

[0046] The above description is only a preferred embodiment of this application. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of this disclosure / application, and these improvements and modifications should also be considered within the protection scope of this disclosure / application.

Claims

1. A pile J-tube sea cable entry arrangement, characterized by The utility model relates to a steel pipe pile (1) is provided with first perforation (11) on the steel pipe pile (1), J type pipe body (2) passes through first perforation (11), one end of J type pipe body (2) is inclined and is located outside steel pipe pile (1) downward, the other end is inclined and is located inside steel pipe pile (1) upward, support plate (3) is used for fixing J type pipe body (2). The J type pipe body (2) includes lower trumpet mouth (21), straight section (22), bend section (23) and upper trumpet mouth (24) connected in sequence, wherein the lower trumpet mouth (21) is located outside the steel pipe pile (1), the straight section (22) is arranged at the first perforation (11), the bend section (23) and the upper trumpet mouth (24) are located inside the steel pipe pile (1) and extend towards the top end of the steel pipe pile (1). The support plate (3) includes a first support plate (31) and a second support plate (32), one end of the first support plate (31) is fixedly connected to the inner wall of the steel pipe pile (1), and the other end is fixedly connected to the bend section (23), one end of the second support plate (32) is fixedly connected to the inner wall of the steel pipe pile (1), and the other end is fixedly connected to the straight section (22). The second support plate (32) has a plurality of.

2. A pile J-tube cable entry arrangement according to claim 1, characterised in that, The support plate (3) is corner-welded to the steel pipe pile (1) and the J type pipe body (2) respectively.

3. A pile J-tube cable entry arrangement according to claim 2, characterised in that, It also includes a reinforcing plate (4) arranged on the steel pipe pile (1), the reinforcing plate (4) is provided with a second perforation (41) communicating with the first perforation (11), and the first perforation (11) and the second perforation (41) have the same hole shape.

4. A pile J-tube cable entry arrangement according to claim 3, characterised in that, The reinforcing plate (4) has two pieces, and the two pieces of reinforcing plate (4) are arranged on the inner side wall and the outer side wall of the steel pipe pile (1) respectively.

5. A pile J-tube cable entry arrangement according to claim 3, characterised in that, The support plate (3) is connected to the steel pipe pile (1) through the reinforcing plate (4), and the support plate (3) is corner-welded to the reinforcing plate (4) and the J type pipe body (2) respectively.

6. A pile J-tube cable entry arrangement according to claim 2, characterised in that, The lower trumpet mouth (21), the straight section (22), the bend section (23) and the upper trumpet mouth (24) are connected by butt welding.

7. A pile J-tube cable entry arrangement according to claim 6, characterised in that, ​ 8. A pile J-tube cable entry arrangement according to claim 7, characterised in that, ​ 9. A pile J-tube cable entry arrangement according to claim 2, characterised in that, ​

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