Space net-shaped impressed current structure for offshore wind power jacket foundation

Abstract

The utility model relates to the technical field of offshore wind power equipment, and discloses a space net-shaped impressed current structure for an offshore wind power jacket foundation, which comprises a platform foundation, upright posts, chord members and space net-shaped current pipelines, the platform foundation is suitable for mounting a wind turbine generator, a plurality of upright posts are arranged at the bottom of the platform foundation, and a plurality of chord members are arranged between adjacent upright posts; the upright post and the chord member are combined into a tower-shaped structure, and the spatial mesh current pipeline is arranged on the inner side of the upright post and the chord member, which are positioned on the tower-shaped structure, and the spatial mesh current pipeline is arranged on the upright post and the chord member, so that an artificial anode is formed through impressed current, and the upright post and the chord member are subjected to cathodic polarization; and the protected jacket main body structure is always maintained at the optimal protection potential and is prevented from being corroded by seawater.

Description

Technical Field

[0001] The utility model relates to the technical field of offshore wind power equipment, in particular to a spatial reticulated impressed current structure for an offshore wind power jacket foundation. Background Art

[0002] Wind power energy is a pollution-free and renewable clean energy. China is a country rich in offshore wind resources. Compared with onshore wind power, offshore wind turbines have higher power generation, more stable operation, and do not occupy land resources. Facing the strong energy demand in coastal developed areas, offshore wind power has great development potential. With the increasing maturity of offshore wind power technology, high-power wind turbines and deep waters are the future development directions. This means that the protection area and protection environment of the impressed current system are more severe.

[0003] In the prior art, the impressed current pipelines are usually arranged vertically on the columns. This arrangement form will limit the positions of the reference electrodes and auxiliary anodes at the ends of the pipelines, and they can only be arranged on the columns. In addition, when the pipelines are completely arranged on the columns, they are very likely to interfere with accessory components such as J-tubes and grouting pipelines. Summary of the Utility Model

[0004] In view of this, the utility model provides a spatial reticulated impressed current structure for an offshore wind power jacket foundation to solve the problems in the prior art that the installation positions of the reference electrodes and auxiliary anodes in the impressed current pipelines are limited and the impressed current pipelines are likely to interfere with accessory components.

[0005] The utility model provides a spatial reticulated impressed current structure for an offshore wind power jacket foundation, including a platform foundation, columns, chords, and a spatial reticulated current pipeline. The platform foundation is suitable for installing wind turbines. A plurality of columns are arranged at the bottom of the platform foundation. A plurality of chords are arranged between adjacent columns. The columns and chords are combined into a tower-shaped jacket structure. The spatial reticulated current pipeline is arranged inside the columns and chords in the tower-shaped jacket structure. The spatial reticulated current pipeline includes spatial straight segments and spatial arc segments. A plurality of spatial straight segments and a plurality of spatial arc segments are interwoven into a spatial reticulated structure.

[0006] Beneficial effects: The utility model arranges current pipelines on the columns and chord rods. The current pipelines are arranged on the inner side of the tower-type conductor frame structure to reduce the impact and wear of wind and waves on the pipelines. The main body of the spatial mesh-shaped external current pipeline is composed of spatial straight segments and spatial arc segments. It can adapt to various detailed shapes of the conductor frame during routing. The spatial arc segment structure also reduces the difficulty of threading and the wear of wires during use. The spatial mesh pipeline structure can avoid the existing J-tubes, grouting pipelines and other existing auxiliary components on the conductor frame. The reference electrode and the anode device are not limited to the column itself, and the anode device can be installed and arranged at any position. Different from the traditional pipeline arrangement that needs to be connected to the control cabinet from the top of each column, the spatial mesh pipeline configuration can reduce the number of cable pipes entering the control cabinet.

[0007] In an optional embodiment, the spatial mesh impressed current structure for the offshore wind power conduit foundation also includes a junction box, the interior of the junction box is a cavity, the junction box is arranged on the column and / or the chord, and the bifurcation points or key nodes of the spatial mesh current pipeline are arranged in the junction box.

[0008] Beneficial effects: The utility model can facilitate the threading and pulling of the current pipeline by setting the junction box, and can realize the parallel combination of multiple current pipelines, reduce the total number of threaded wires, and reduce the construction workload of the current pipeline installation.

[0009] In an optional embodiment, at least one second mounting hole is provided on the junction box, and one end of the current pipeline passes through the second mounting hole and is arranged in the junction box.

[0010] In an optional implementation, an opening is provided on one side of the junction box, and a cover plate is movably mounted on the opening.

[0011] Beneficial effects: The utility model provides a movably installed cover plate, which facilitates operations such as threading and wiring of current pipelines in the junction box.

[0012] In an optional embodiment, the offshore wind turbine conduit foundation is used for a spatial mesh impressed current structure of the offshore wind turbine conduit foundation, and also includes a support member, which is arranged on the inner side of the column and / or chord rod along the spatial mesh current pipeline path located on the tower-type conduit structure, and the spatial mesh current pipeline is installed on the support member.

[0013] In an optional embodiment, at least one first mounting hole is provided on the support member, and the current pipeline is installed through the first mounting hole.

[0014] Beneficial effect: The utility model provides a first mounting hole on the support member, so that a plurality of current pipelines in the same direction on the column and / or chord rod can be fixedly supported through the support member, making the arrangement of the current pipelines more concise.

[0015] In an alternative embodiment, the support member includes a support base and a mounting plate. The support base is fixedly connected to the column and / or the chord, and the mounting plate is fixedly mounted on the support base. The first mounting hole is provided on the mounting plate.

[0016] In an alternative embodiment, the spatial mesh current pipeline can be arranged across the columns and chords, and the ends of the spatial mesh current pipeline are arranged on any column and chord.

[0017] In an alternative embodiment, the bending radius of the spatial arc segment is greater than 6 times the pipe diameter of the spatial arc segment.

[0018] In an alternative embodiment, an anti-corrosion layer is provided on the outer wall of the current pipeline.

[0019] Beneficial effects: By providing an anti-corrosion layer on the outer wall of the current pipeline, the present utility model can reduce the erosion of seawater on the current pipeline and improve the service life of the current pipeline. Description of the Drawings

[0020] In order to more clearly illustrate the specific embodiments of the present utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0021] Figure 1 It is the front view of a spatial mesh impressed current structure for an offshore wind power jacket foundation according to an embodiment of the present utility model;

[0022] Figure 2 It is Figure 1 The partial enlarged schematic view of A in

[0023] Figure 3 It is Figure 1 The partial enlarged schematic view of B in

[0024] Figure 4 It is the top view of a spatial mesh impressed current structure for an offshore wind power jacket foundation according to an embodiment of the present utility model with the platform foundation removed;

[0025] Figure 5 It is the structural schematic view of the support member in a spatial mesh impressed current structure for an offshore wind power jacket foundation according to an embodiment of the present utility model;

[0026] Figure 6 It is the front side view of the junction box in a spatial mesh impressed current structure for an offshore wind power jacket foundation according to an embodiment of the present utility model;

[0027] Figure 7 The rear view of a junction box in a spatial mesh impressed current structure for an offshore wind turbine jacket foundation according to an embodiment of the present invention;

[0028] Figure 8 The top view of a junction box in a spatial mesh impressed current structure for an offshore wind turbine jacket foundation according to an embodiment of the present invention;

[0029] Figure 9 The connection schematic diagram of an anode wire and a current pipeline in a spatial mesh impressed current structure for an offshore wind turbine jacket foundation according to an embodiment of the present invention.

[0030] Figure 10 is Figure 1 a separate schematic diagram of the spatial mesh pipeline structure in

[0031] Figure 11 is Figure 2 a separate schematic diagram of the spatial mesh pipeline structure in

[0032] Description of reference numerals:

[0033] 1. Platform foundation;

[0034] 2. Column;

[0035] 3. Chord;

[0036] 4. Spatial mesh current pipeline; 401. Spatial straight segment; 402. Spatial arc segment;

[0037] 5. Support member; 501. First mounting hole; 502. Support base; 503. Mounting plate;

[0038] 6. Junction box; 601. Second mounting hole; 602. Cover plate;

[0039] 7. Auxiliary anode. Detailed implementation manners

[0040] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0041] Next, in combination with Figures 1 to 11 , the embodiments of the present invention will be described.

[0042] According to the embodiments of the present invention, asFigures 1 to 11 As shown, a spatial mesh impressed current structure for an offshore wind power conductor frame foundation is provided, comprising a platform foundation 1, columns 2, chords 3 and a spatial mesh current pipeline 4, wherein the platform foundation 1 is suitable for installing a wind turbine, a plurality of columns 2 are arranged at the bottom of the platform foundation 1, a plurality of chords 3 are arranged between adjacent columns 2, the columns 2 and the chords 3 are combined into a tower-type conductor frame structure, the spatial mesh current pipeline 4 is arranged on the inner side of the columns 2 and the chords 3 located on the tower-type conductor frame structure, the spatial mesh current pipeline 4 comprises a spatial straight segment 401 and a spatial arc segment 402, and a plurality of spatial straight segments 401 and a plurality of spatial arc segments 402 are interwoven into a spatial mesh structure.

[0043] Specifically, in this embodiment, there is no specific limitation on the number of columns 2. To conform to the actual situation, in this embodiment, four columns 2 are provided. A plurality of chords 3 are staggered and arranged in an "X" shape and connected between two adjacent columns 2. The columns 2 and the chords 3 are combined to form a tower-type frame structure. The platform foundation 1 is arranged on the top of the column 2, and the platform foundation 1 is used to fix the installation of the wind turbine tower.

[0044] In this embodiment, there is no specific limitation on the materials of the upright column 2 and the chord rod 3. To meet the actual situation, in this embodiment, the upright column 2 and the chord rod 3 are made of steel pipes.

[0045] In this embodiment, the interior of the spatial mesh current pipeline 4 is a hollow tubular structure, and the spatial straight segment 401 is installed along the length direction of the column 2 or the chord 3. When the spatial mesh current pipeline 4 turns from the column 2 to the chord 3, or when it turns and is arranged between adjacent chords 3, it is bent and turned from the column 2 to the chord 3 or from one chord 3 to another chord 3 through the spatial arc segment 402. One end of the spatial arc segment 402 is connected to one spatial straight segment 401, and the other end is connected to another spatial straight segment 401.

[0046] The utility model provides a space arc segment 402 in the space mesh current pipeline 4, so that the space mesh current pipeline 4 can adapt to the structural shapes of various parts of the pipe frame column 2 and the chord rod 3 when routing, thereby reducing the difficulty of threading and later wear.

[0047] like Figure 1 , Figure 4 , Figure 10 and Figure 11As shown, in this embodiment, the space reticulated current pipeline 4 extends downward from the top of one of the columns 2 to the bottom of the column 2. Space arc segments 402 are provided at the top and bottom ends of the column 2. Space straight segments 401 are connected to the space arc segments 402 at both ends. Multiple parallel branches in the space reticulated current pipeline 4 extend towards multiple chord members 3. Among them, multiple space straight segments 401 on the column 2 are connected in parallel with the space straight segments 401 on the column 2. They turn towards the chord member 3 through the space arc segments 402. The space straight segments 401 on the chord member 3 are arranged along the length direction of the chord member 3. They are connected in parallel between adjacent chord members 3 through space straight segments 401 and extend to other chord members 3. Thus, the space reticulated current pipeline 4 is intertwined into a mesh structure between the column 2 and the chord member 3. The mesh structure can avoid other attached components on the column 2, such as submarine cable J pipes, grouting pipelines, and monitoring equipment pipelines, reducing interference effects. At the same time, extending downward from one column 2 and dispersing into a space reticulated structure can make the end of the pipeline reach the rod positions at any elevation of the jacket structure, facilitating the installation of the reference electrode and the auxiliary anode 7. By applying an external current to the space reticulated current pipeline 4 to form an artificial anode, the column 2 and the chord member 3 are cathodically polarized, so that the rods at any position of the protected jacket main structure are always maintained at the optimal protection potential and are protected from seawater corrosion.

[0048] In this embodiment, the space reticulated current pipeline 4 is arranged across the column 2 and across the chord member 3. The space reticulated current pipeline 4 starts from one of the columns 2 and extends through to any position of the adjacent or opposite column 2 or chord member 3, and is integrally intertwined into a space network structure with a total - sub configuration.

[0049] The utility model sets a space reticulated current pipeline 4 on the column 2 and the chord member 3. The negative pole in the space reticulated current pipeline 4 is connected to the column 2 and the chord member 3, and a loop is formed through seawater, cathodically polarizing the column 2 and the chord member 3, so that the protected column 2 and chord member 3 are always maintained at the optimal protection potential and are protected from seawater corrosion; setting the space reticulated current pipeline 4 on the inner side of the column 2 and the chord member 3 in the tower - type jacket structure can reduce the impact and wear of wind and waves on the pipeline. This space reticulated external - current structure for offshore wind power jacket foundations has the advantages of not requiring an external power source, not needing management after commissioning and debugging, uniform distribution of protection current, and high utilization rate.

[0050] In one embodiment, as Figure 1 and Figure 4 shown, the space reticulated external - current structure for offshore wind power jacket foundations further includes a junction box 6. The inside of the junction box 6 is a cavity. The junction box 6 is arranged on the column 2 and / or the chord member 3, and the connection ends of multiple space reticulated current pipelines 4 are arranged in the junction box 6.

[0051] Specifically, in this embodiment, a plurality of junction boxes 6 are arranged on the inner side of the columns 2 and the chord rods 3 located in the tower-type conduit frame structure, and the junction boxes 6 are used to connect adjacent spatial mesh current pipelines 4 .

[0052] The utility model can facilitate the threading and pulling of the spatial mesh current pipeline 4 by setting the junction box 6 on the one hand, and can realize the parallel combination of multiple spatial mesh current pipelines 4 on the other hand, reduce the total number of threaded wires, and reduce the construction workload of the spatial mesh current pipeline 4 installation.

[0053] In one embodiment, Figures 6 to 8 As shown, at least one second mounting hole 601 is provided on the junction box 6 , and one end of the spatial mesh current pipeline 4 passes through the second mounting hole 601 and is arranged in the junction box 6 .

[0054] Specifically, the present embodiment does not impose any specific limitation on the number of the second mounting holes 601 . To comply with the actual situation, the present embodiment sets the number of the second mounting holes 601 to four, which can be used for four spatial mesh current pipelines 4 to be installed in the junction box 6 .

[0055] In one embodiment, Figures 6 to 8 As shown, an opening is provided on one side of the junction box 6, and a cover plate 602 is movably mounted on the opening.

[0056] Specifically, in this embodiment, the junction box 6 has a rectangular structure, the bottom of the junction box 6 is arc-shaped, matching the outer wall shape of the column 2 and the chord 3, a second mounting hole 601 is provided on the side wall of the junction box 6, and an opening is provided on the top of the junction box 6, and a cover plate 602 is movably installed at the opening, and multiple spatial mesh current pipelines 4 are inserted into the junction box 6 through the second mounting hole 601, and the spatial mesh current pipelines 4 can be connected in parallel through the top opening of the junction box 6.

[0057] The utility model provides a movably installed cover plate 602, so as to facilitate operations such as threading, pulling and wiring of the spatial mesh current pipeline 4 in the junction box 6.

[0058] In one embodiment, Figure 1 and Figure 3 As shown, the spatial mesh impressed current structure of the offshore wind turbine conduit foundation used for the offshore wind turbine conduit foundation also includes a support member 5, which is arranged along the path of the spatial mesh current pipeline 4 on the inner side of the column 2 and / or the chord 3 located on the tower-type conduit structure, and the spatial mesh current pipeline 4 is installed on the support member 5.

[0059] In one embodiment, Figure 5 As shown, at least one first mounting hole 501 is provided on the support member 5 , and the spatial mesh current pipeline 4 is passed through and installed in the first mounting hole 501 .

[0060] Specifically, in this embodiment, the number of the first mounting holes 501 is not specifically limited. To conform to the actual situation, four first mounting holes 501 are provided in this embodiment, and four spatial mesh current pipelines 4 can be simultaneously passed through a support member 5. In this embodiment, the arrangement spacing of the support members 5 can be set according to actual requirements.

[0061] By providing a plurality of first mounting holes 501 on the support member 5, the present utility model facilitates the fixed support of a plurality of spatial mesh current pipelines 4 with the same orientation on the column 2 and / or the chord 3 through the support member 5, making the arrangement of the spatial mesh current pipelines 4 more concise.

[0062] In one embodiment, as Figure 5 shown, the support member 5 includes a support base 502 and a mounting plate 503. The support base 502 is fixedly connected to the column 2 and / or the chord 3, the mounting plate 503 is fixedly installed on the support base 502, and the first mounting holes 501 are provided on the mounting plate 503.

[0063] Specifically, in this embodiment, the support base 502 is arc-shaped and matches the outer wall dimensions of the column 2 or the chord 3. The support base 502 can be fixedly installed on the outer walls of the column 2 and the chord 3 by welding.

[0064] In this embodiment, the mounting plate 503 has a trapezoidal structure, and four first mounting holes 501 are provided on the mounting plate 503.

[0065] In one embodiment, the spatial mesh current pipeline 4 can be arranged across the column 2 and the chord 3, and the end of the spatial mesh current pipeline 4 is arranged on any column 2 and chord 3.

[0066] In one embodiment, the bending radius of the spatial arc section 402 is greater than 6 times the pipe diameter of the spatial arc section 402.

[0067] In one embodiment, an anti-corrosion layer is provided on the outer wall of the spatial mesh current pipeline 4.

[0068] By providing an anti-corrosion layer on the outer wall of the spatial mesh current pipeline 4, the present utility model can reduce the erosion of seawater on the spatial mesh current pipeline 4 and improve the service life of the spatial mesh current pipeline 4.

[0069] In one embodiment, as Figure 1 shown, the spatial mesh impressed current structure for an offshore wind turbine jacket foundation further includes an auxiliary anode 7, and the auxiliary anode 7 is arranged on the spatial mesh current pipeline 4.

[0070] In this embodiment, the spatial network current pipeline 4 with a spatial network structure can arrange the auxiliary anode 7 at any elevation and any position, which is more convenient for the arrangement of the auxiliary anode 7. The auxiliary anode 7 is installed at the end of the spatial network current pipeline 4. The electro-negative auxiliary anode 7 in the spatial network current pipeline 4 generates cathodic protection current through galvanic action to make its own dissolution and consumption, so that the potential of the spatial network impressed current structure for the offshore wind turbine jacket foundation is always in a state lower than the surrounding environment, becoming the cathode in the whole environment. Thus, the spatial network impressed current structure for the offshore wind turbine jacket foundation will not be corroded due to the loss of electrons and avoid being eroded by seawater.

[0071] Although the embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations fall within the scope defined by the appended claims.

Claims

1. A spatial reticulated impressed current structure for an offshore wind power jacket foundation, characterized in that include: A platform foundation (1), wherein the platform foundation (1) is suitable for installing a wind turbine generator set; Columns (2), a plurality of columns (2) are arranged at the bottom of the platform foundation (1); A chord (3), wherein a plurality of chords (3) are arranged between adjacent columns (2), and the columns (2) and the chords (3) are combined into a tower-type conductor frame structure; A spatial mesh current pipeline (4), wherein the spatial mesh current pipeline (4) is arranged on the inner side of the tower-type conductor frame structure where the column (2) and the chord (3) are located, and the spatial mesh current pipeline (4) comprises a spatial straight segment (401) and a spatial arc segment (402), wherein a plurality of the spatial straight segments (401) and a plurality of the spatial arc segments (402) are interwoven into a spatial mesh structure.

2. The impressed current structure with a spatial network for the jacket foundation of offshore wind power according to claim 1, characterized in that, Also includes: A junction box (6), the interior of the junction box (6) is a hollow cavity, the junction box (6) is arranged on the column (2) and / or the chord (3), and the bifurcation point or key node of the spatial mesh current pipeline (4) is arranged in the junction box (6).

3. The impressed current structure with a spatial network for the jacket foundation of offshore wind power according to claim 2, characterized in that, At least one second mounting hole (601) is provided on the junction box (6), and one end of the spatial mesh current pipeline (4) passes through the second mounting hole (601) and is arranged in the junction box (6).

4. The impressed current structure with a spatial network for the jacket foundation of offshore wind turbines according to claim 2 or 3, characterized in that, An opening is provided on one side of the junction box (6), and a cover plate (602) is movably mounted on the opening.

5. The impressed current structure with a spatial network for the jacket foundation of offshore wind power according to claim 1, characterized in that, Also includes: A support member (5), wherein the support member (5) is arranged on the column (2) and / or the chord (3) along the path of the spatial mesh current pipeline (4) and is located on the inner side of the tower-type conduit frame structure, and the spatial mesh current pipeline (4) is installed on the support member (5).

6. The impressed current structure with a spatial network for the jacket foundation of offshore wind turbines according to claim 5, wherein, The support member (5) is provided with at least one first mounting hole (501), and the spatial mesh current pipeline (4) is installed through the first mounting hole (501).

7. The impressed current structure with a spatial network for the jacket foundation of offshore wind power according to claim 6, wherein The support member (5) comprises: A support seat (502), wherein the support seat (502) is fixedly connected to the column (2) and / or the chord (3); A mounting plate (503), wherein the mounting plate (503) is fixedly mounted on the support seat (502), and the first mounting hole (501) is arranged on the mounting plate (503).

8. The impressed current structure with a spatial network for the jacket foundation of offshore wind power according to claim 1, wherein The spatial mesh current pipeline (4) can be arranged across the columns (2) and the chord rod (3), and the ends of the spatial mesh current pipeline (4) are arranged on any column (2) and chord rod (3).

9. The impressed current structure with a spatial network for the jacket foundation of offshore wind power according to claim 1, characterized in that, The bending radius of the space arc segment (402) is greater than 6 times the diameter of the space arc segment (402).

10. The impressed current structure with a spatial network for the jacket foundation of offshore wind power according to claim 1, characterized in that, The outer wall of the spatial mesh current pipeline (4) is provided with an anti-corrosion layer.

11. The impressed current structure with a spatial network for the jacket foundation of offshore wind power according to claim 1, characterized in that, Also includes: An auxiliary anode (7), wherein the auxiliary anode (7) is arranged on the spatial mesh current pipeline (4).

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