Sacrificial anode structure for offshore photovoltaic system

Abstract

The utility model provides a sacrificial anode structure for an offshore photovoltaic system, and relates to the technical field of offshore photovoltaic. The sacrificial anode structure comprises a main body assembly and a plurality of connecting parts, the main body assembly is connected to the periphery of the pile foundation structure and located below the sea level. The main body assembly comprises a metal core and at least two extending parts arranged on the metal core, the axis of the metal core is parallel to the axis of the pile foundation structure, the extending parts are bent from the axis direction of the metal core to the direction perpendicular to the axis of the metal core and extend in the direction away from the metal core, and the extending directions of the multiple extending parts are parallel to one another; the connecting parts are arranged between the main body assembly and the pile foundation structure, the connecting parts and the extending parts are arranged in a one-to-one correspondence mode, all the extending parts are connected to the pile foundation structure through the connecting parts, and all the connecting parts are made of conductive materials. The connection reliability of the sacrificial anode structure and the pile foundation structure is high, and then the anti-corrosion performance of the pile foundation structure can be improved.

Description

Technical Field

[0001] This disclosure relates to the field of marine photovoltaic technology, and more specifically, to a sacrificial anode structure for marine photovoltaic systems. Background Technology

[0002] Photovoltaics (PV) is a power generation system that converts solar radiation energy into electrical energy. PV energy originates from solar energy, which is a clean, safe, and renewable energy source; therefore, PV power generation has promising application prospects. Given my country's vast sea area and the insufficient development of marine resources, combining marine resources with PV power generation represents a promising resource project.

[0003] Offshore photovoltaic (PV) systems require numerous pile foundations as supporting structures, anchored in the sea to serve as the foundation for the subsequent installation of PV modules. The structural strength and corrosion resistance of these pile foundations in the sea determine their lifespan, thus affecting the overall service life of the offshore PV system. While sacrificial anode structures, as electrochemical protection structures, can be used for corrosion protection of bridges and other structures, their suitability for the complex working environment of offshore PV systems is uncertain. In particular, the corrosion protection of the pile foundation structure within the offshore PV system must withstand the challenging marine environment. The reliability of the connection between the sacrificial anode structure and the pile foundation structure, as well as its structural design, determine the lifespan of the pile foundation structure.

[0004] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of this disclosure, and therefore may include information that does not constitute prior art known to those skilled in the art. Utility Model Content

[0005] In view of this, a sacrificial anode structure for offshore photovoltaic systems is provided. This sacrificial anode structure is connected to the pile foundation structure through multiple connecting parts, which can improve the reliability of the connection between the sacrificial anode structure and the pile foundation structure, thereby improving the corrosion resistance of the pile foundation structure.

[0006] Other features and advantages of this disclosure will become apparent from the following detailed description, or may be learned in part from practice of this disclosure.

[0007] According to one aspect of this disclosure, a sacrificial anode structure for an offshore photovoltaic system is provided, the offshore photovoltaic system including a pile foundation structure, the sacrificial anode structure comprising:

[0008] The main component is connected to the outer periphery of the pile foundation structure and is located below sea level;

[0009] The main component includes a metal core and at least two extensions disposed on the metal core. The axis of the metal core is parallel to the axis of the pile foundation structure. The extensions bend from the axis of the metal core in a direction perpendicular to the axis of the metal core and extend away from the metal core. The extension directions of the plurality of extensions are parallel to each other.

[0010] Multiple connecting parts are provided between the main body component and the pile foundation structure. The connecting parts and the extension parts are arranged in a one-to-one correspondence. Each extension part is connected to the pile foundation structure through the connecting parts. Each connecting part is made of conductive material.

[0011] In one exemplary embodiment of this disclosure, at least two stiffening plates are provided at the circumferential position of each of the extensions, the first side of each stiffening plate is fitted and connected to the connecting portion, the second side of each stiffening plate is fitted and connected to the extension, and the first side and the second side are adjacent to each other.

[0012] In one exemplary embodiment of this disclosure, the ratio of the length of the second side of the stiffening plate to the length of the extension is 1:5 to 3:5.

[0013] In one exemplary embodiment of this disclosure, the first side and the second side are perpendicular to each other; the plurality of stiffening plates have the same shape and are evenly distributed on the circumferential position of the extension.

[0014] In one exemplary embodiment of this disclosure, the connecting portion is a rectangular structure, and the number of stiffening plates disposed on one of the connecting portions is four, with the four stiffening plates disposed along the center of the connecting portion toward the edge of the connecting portion.

[0015] In one exemplary embodiment of this disclosure, the stiffening plate is a pentagonal structure or a right trapezoidal structure.

[0016] In one exemplary embodiment of this disclosure, the metal core includes an outer structure and an inner structure passing through the outer structure, the outer structure and the inner structure being made of different metals, and the length of the outer structure being less than the length of the inner structure.

[0017] In one exemplary embodiment of this disclosure, the cross-section of the outer structure is an isosceles trapezoid, and the inner structure passes through the outer structure along the axial direction of the outer structure.

[0018] In one exemplary embodiment of this disclosure, the length of the outer structure is 70% to 90% of the length of the inner structure.

[0019] In one exemplary embodiment of this disclosure, the connecting portion has a first connecting hole and a plurality of second connecting holes. The center of the first connecting hole coincides with the center of the connecting portion, and one end of the extension portion passes through the first connecting hole. The plurality of second connecting holes are distributed around the first connecting hole, and the connecting portion is connected to the pile foundation structure through the second connecting holes.

[0020] The sacrificial anode structure for offshore photovoltaic systems disclosed herein includes a main component and multiple connecting parts. The main component is connected to a pile foundation structure via the multiple connecting parts, and the main component is located below sea level. On the one hand, the connecting parts enhance the reliability of the connection between the main component and the pile foundation structure, enabling the sacrificial anode structure to form a reliable connection with the pile foundation structure, providing a structural basis for the subsequent corrosion protection of the pile foundation structure by the sacrificial anode structure. On the other hand, the main component, through its metal core and the seawater environment, forms a galvanic cell structure with the pile foundation structure, which can undergo an oxidation reaction on the pile foundation structure to form an oxide film layer, thereby effectively protecting the pile foundation structure from corrosion, thereby improving the strength and reliability of the pile foundation structure and extending its service life.

[0021] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure. Attached Figure Description

[0022] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this disclosure and, together with the description, serve to explain the principles of this disclosure. It is obvious that the drawings described below are merely some embodiments of this disclosure, and those skilled in the art can obtain other drawings based on these drawings without any inventive effort.

[0023] Figure 1 This is a schematic diagram of a sacrificial anode structure for a marine photovoltaic system according to an exemplary embodiment of the present disclosure.

[0024] Figure 2 This is a partial structural schematic diagram of a sacrificial anode structure for a marine photovoltaic system in an exemplary embodiment of this disclosure.

[0025] Figure 3 This is a schematic diagram showing one arrangement of the stiffening plate in the sacrificial anode structure in an exemplary embodiment of the present disclosure.

[0026] Figure 4 This is a schematic diagram showing another arrangement of the stiffening plate in the sacrificial anode structure in an exemplary embodiment of the present disclosure.

[0027] Figure 5This is a schematic diagram showing the positional relationship between the first connecting hole and the second connecting hole in an exemplary embodiment of this disclosure.

[0028] Figure 6 This is a cross-sectional schematic diagram of the external structure in an exemplary embodiment of this disclosure.

[0029] The reference numerals in the attached figures are explained as follows:

[0030] 10. Main component; 11. Metal core; 101. External structure; 102. Internal structure; 12. Extension; 20. Connecting part; 201. First connecting hole; 202. Second connecting hole; 30. Stiffening plate; 31. First side; 32. Second side. Detailed Implementation

[0031] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the embodiments set forth herein; rather, they are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the exemplary embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and therefore detailed descriptions of them will be omitted. Furthermore, the drawings are merely illustrative of this disclosure and are not necessarily drawn to scale.

[0032] Although relative terms such as "up" and "down" are used in this specification to describe the relative relationship of one component of an icon to another, these terms are used only for convenience, such as according to the orientation of the examples shown in the accompanying drawings. It is understood that if the device of the icon is flipped upside down, the component described as "up" will become the component described as "down." When a structure is "up" of another structure, it may mean that the structure is integrally formed on the other structure, or that the structure is "directly" mounted on the other structure, or that the structure is "indirectly" mounted on the other structure through another structure.

[0033] The terms “a,” “one,” “the,” “the,” and “at least one” are used to indicate the presence of one or more elements / components / etc.; the terms “including” and “having” are used to indicate an open-ended inclusion and to mean that there may be other elements / components / etc. in addition to the listed elements / components / etc.; the terms “first,” “second,” and “third,” etc., are used only as markers and are not a limitation on the number of objects.

[0034] In related technologies, offshore photovoltaic systems consist of a pile foundation structure, support units, and photovoltaic modules. The pile foundation structure provides the structural foundation for the installation of photovoltaic panels. One end of the pile foundation structure is sunk into the sea and fixed to the seabed, while the other end extends above the sea level to provide support for the support units and photovoltaic modules. The service life of the pile foundation structure often affects the service life of the entire offshore photovoltaic system.

[0035] Because the pile foundation structure is located in seawater, it is subject to corrosion, which reduces the structural strength of the pile foundation and can even cause it to collapse, leading to the collapse of the entire offshore photovoltaic system. Therefore, the corrosion protection of the pile foundation structure determines the service life of the entire offshore photovoltaic system. Sacrificial anode structures are commonly used for corrosion protection of metals, but they are typically used on land. The land and marine environments are vastly different; the marine environment is highly corrosive and erosive, requiring sacrificial anode structures with high structural and connection strength. Conventional sacrificial anode structures and connection methods cannot meet the requirements of the marine environment, thus failing to effectively protect the pile foundation structure from corrosion and affecting its service life.

[0036] Based on this, the present disclosure provides a sacrificial anode structure for offshore photovoltaic systems, such as... Figure 1 As shown, combined with Figures 2 to 6 The sacrificial anode structure includes a main body assembly 10 and multiple connecting parts 20.

[0037] The main component 10 is connected to the outer periphery of the pile foundation structure and is located below sea level. The main component 10 includes a metal core 11 and at least two extensions 12 disposed on the metal core 11. The axis of the metal core 11 is parallel to the axis of the pile foundation structure. The extensions 12 bend from the axis of the metal core 11 in a direction perpendicular to the axis of the metal core 11 and extend away from the metal core 11. The extension directions of the multiple extensions 12 are parallel to each other. Multiple connecting parts 20 are disposed between the main component 10 and the pile foundation structure. The connecting parts 20 and the extensions 12 are arranged in a one-to-one correspondence. Each extension 12 is connected to the pile foundation structure through the connecting parts 20. Each connecting part 20 is made of conductive material.

[0038] The sacrificial anode structure for offshore photovoltaic systems disclosed herein includes a main component 10 connected to a pile foundation structure. The main component 10 and the pile foundation structure can form a galvanic cell structure, thereby forming an oxidation reaction on the pile foundation structure and subsequently forming an oxide film layer on the pile foundation structure, thus preventing the pile foundation structure from being damaged by external erosion. The main component 10 can effectively protect the pile foundation structure from corrosion, and this corrosion protection method is not limited to the shape of the pile foundation structure and is universal for various pile foundation structures. The main component 10 is connected to the pile foundation component through multiple connecting parts 20, which can improve the connection reliability between the main component 10 and the pile foundation structure, thereby ensuring that the main component 10 effectively protects the pile foundation structure from corrosion and thus improving the service life of the pile foundation structure.

[0039] The sacrificial anode structure disclosed herein is installed in an offshore photovoltaic system. Specifically, it can be installed in the pile foundation structure (not shown in the figure) of the offshore photovoltaic system. The offshore photovoltaic system may also include support units connected to the pile foundation structure. These support units support the photovoltaic modules, which convert solar energy into electrical energy. The support unit can be a grid structure assembled from multiple rods. One side of the support unit is used to install the photovoltaic modules, and the other side is connected to the pile foundation structure. The support unit and the pile foundation structure can be connected by welding or other methods. Multiple photovoltaic modules can be installed on one support unit, and the number and layout of the photovoltaic modules can be adjusted as needed. The specific structure and dimensions of the support unit can be designed and improved according to actual design and usage requirements; the specific structure of the support unit is not detailed here. In addition, the offshore photovoltaic system may also include other unmentioned but necessary components or devices for offshore power generation.

[0040] The pile foundation structure in an offshore photovoltaic system can be a fixed pile foundation structure, where one end of the pile foundation structure is fixed to the seabed and the other end extends above sea level. The pile foundation structure can employ a variable diameter structure, where the diameter of the end located on the seabed is larger than the diameter of the end above sea level, to ensure sufficient supporting force to withstand the loads from the photovoltaic modules and support units. For ease of mass production and to ensure sufficient structural strength, steel pile structures are typically used. Furthermore, it should be noted that the pile foundation structure applicable to the sacrificial anode structure provided in this disclosure can be a pile foundation structure connected to the support unit, a pile foundation structure connected to the transformer substation platform, or a pile foundation structure used to support other components within the offshore photovoltaic system; all of these can utilize the sacrificial anode structure provided in this disclosure.

[0041] The various parts of the sacrificial anode structure for a marine photovoltaic system provided in the embodiments of this disclosure will now be described in detail with reference to the accompanying drawings:

[0042] In the embodiments provided in this disclosure, the sacrificial anode structure includes a main component 10, which is connected to the outer periphery of the pile foundation structure and is located below sea level. The main component 10 and the pile foundation structure form a galvanic cell structure to provide electrochemical protection for the pile foundation structure and improve its corrosion resistance.

[0043] Among them, such as Figure 1 As shown, the main component 10 includes a metal core 11 and at least two extensions 12 disposed on the metal core 11. The axis of the metal core 11 is parallel to the axis of the pile foundation structure. The extensions 12 bend from the axial direction of the metal core 11 in a direction perpendicular to the axis of the metal core 11 and extend in a direction away from the metal core 11. The extension directions of the plurality of extensions 12 are parallel to each other.

[0044] In some embodiments, the number of extensions 12 is at least two. For example, there may be two, three, four, five, or even more extensions 12. The specific number of extensions 12 can be selected according to the specific design structure of the main component 10, and this disclosure does not impose a specific limitation. Taking two extensions 12 as an example, the two extensions 12 are respectively disposed at both ends of the metal core 11. The two extensions 12 are bent along a direction perpendicular to the axis of the metal core 11, and the two extensions 12 extend toward the pile foundation structure. The main component 10 composed of the two extensions 12 and the metal core 11 can be U-shaped or U-shaped, and the two extensions 12 are respectively connected to the pile foundation structure. Of course, when the number of extensions 12 is greater than two, the multiple extensions 12 can be evenly distributed on the metal core 11, or the placement position of the extensions 12 can be selected according to actual usage requirements.

[0045] Among them, such as Figure 1 As shown, the metal core 11 may include an outer structure 101 and an inner structure 102 passing through the outer structure 101. The extension 12 can be disposed at the end of the inner structure 102 or on the outer surface of the outer structure 101. Taking two extensions 12 as an example, the two extensions 12 are respectively disposed at the two ends of the inner structure 102, so that the overall shape of the main component 10 is U-shaped or U-shaped. Of course, when the number of extensions 12 is greater than two, multiple extensions 12 can be respectively disposed on the outer structure 101 and the inner structure 102 of the metal core 11. The specific placement of the extensions 12 can be selected according to actual needs.

[0046] The outer structure 101 and the inner structure 102 are made of different metals. For example, the inner structure 102 can be an iron core structure, and the outer structure 101 can be an aluminum alloy block structure. The length of the outer structure 101 is less than the length of the inner structure 102, so that the inner structure 102 can be inserted into the outer structure 101 and extend away from the outer structure 101 from both ends.

[0047] The length of the outer structure 101 can be 70% to 90% of the length of the inner structure 102 to ensure the reliability of the connection between the inner structure 102 and the outer structure 101. Furthermore, the length of the outer structure 101 can be 2000mm to 2300mm, for example, 2000mm, 2050mm, 2100mm, 2150mm, 2200mm, 2250mm, or 2300mm. For example, when the length of the outer structure 101 is 2150mm, the length of the inner structure 102 can be 2390mm to 3070mm. Of course, the specific length values ​​of the inner structure 102 and the outer structure 101 in the above embodiments are only illustrative examples, and the length of the inner structure 102 can also be adaptively adjusted when the length of the outer structure 101 changes.

[0048] Among them, such as Figure 6 As shown, the cross-section of the outer structure 101 can be an isosceles trapezoid, and the inner structure 102 is inserted into the outer structure 101 along its axial direction. The isosceles trapezoidal cross-section of the outer structure 101 improves its structural stability, thus ensuring the stability of the sacrificial anode structure connected to the pile foundation structure. Specifically, the length of the upper base of the isosceles trapezoidal cross-section of the outer structure 101 can be 80% to 90% of the length of the lower base. For example, the length of the upper base can be 150mm to 200mm, and the length of the lower base can be 180mm to 250mm. Specifically, when the upper base length is 170mm, the lower base length can be 200mm. However, the specific values ​​in the above embodiments do not specifically limit the cross-sectional dimensions of the outer structure 101 provided in this disclosure; they are merely illustrative examples. The cross-sectional dimensions of the outer structure 101 can be adaptively adjusted within the above range according to requirements.

[0049] In this disclosure, the internal structure 102 and the extensions 12 provided at both ends of it can be integrally formed. Furthermore, the internal structure 102 and the extensions 12 provided at both ends of the internal structure 102 can be an integral iron core structure. This structure can simplify the process and improve the overall economy of the sacrificial anode structure.

[0050] The metal core 11 of the main component 10 provided in this disclosure adopts a structure combining an external structure 101 and an internal structure 102, which can improve the structural strength of the metal core 11 and also improve the effectiveness of the metal core 11 in providing chemical protection for the pile foundation structure.

[0051] In some embodiments, such as Figure 1 As shown, combined with Figure 2 , Figure 3 and Figure 4 To improve the connection strength between the sacrificial anode structure and the pile foundation structure, at least two stiffening plates 30 can be provided on the circumferential position of each extension 12. The stiffening plates 30 can enhance the strength of the extension 12, so that the sacrificial anode structure can be effectively connected to the pile foundation structure through the extension 12. For example... Figure 2 As shown, the stiffening plate 30 includes a first side 31 and a second side 32 arranged adjacent to each other. The first side 31 of the stiffening plate 30 is fitted and connected to the connecting portion 20, and the second side 32 of the stiffening plate is fitted and connected to the extension portion 12. The ratio of the length of the second side 32 of the stiffening plate 30 to the length of the extension portion 12 is 1:5 to 3:5, for example, it can be 1:5, 1.5:5, 2:5, 2.5:5, 3:5, etc. For example, the length of the second side 32 can be 150mm, and the length of the extension portion 12 can be 410mm. The projection of the stiffening plate 30 on the surface of the connecting portion 20 must be located within the surface of the connecting portion 20 to avoid the stiffening plate 30 protruding from the connecting portion 20 and affecting the installation of the sacrificial anode structure.

[0052] The first side 31 and the second side 32 of the stiffening plate 30 can be arranged perpendicular to each other, and the multiple stiffening plates 30 arranged in the circumferential position of an extension 12 can have the same external shape structure. The multiple stiffening plates 30 can be evenly distributed in the circumferential position of an extension 12 to form uniform support for the extension 12 and ensure the uniformity of the force on the multiple stiffening plates 30.

[0053] In some specific embodiments, such as Figure 3 As shown, the number of stiffening plates 30 provided on a connecting part 20 can be four. The four stiffening plates 30 are arranged along the center of the connecting part 20 toward the edge of the connecting part 20. For example, the four stiffening plates 30 can be arranged along the diagonal of the rectangular connecting part 20, or the four stiffening plates 30 can be arranged on the two vertical lines of the rectangular connecting part 20, so as to ensure the supporting effect of the stiffening plates 30 on the extension part 12.

[0054] The stiffening plate 30 can be a pentagonal structure or a right trapezoidal structure. When the stiffening plate 30 is a pentagonal structure, it can have three right-angled interior angles to accommodate the positional relationship between the connecting part 20 and the extension part 12. Each stiffening plate 30 can be connected to the connecting part 20 and the extension part 12 by welding, riveting, or bonding to ensure the supporting and reinforcing effect of the stiffening plate 30 on the extension part 12.

[0055] In the embodiments provided in this disclosure, such as Figure 1 As shown, combined with Figures 2 to 5 The sacrificial anode structure includes multiple connecting parts 20, which are disposed between the main component 10 and the pile foundation structure. The main component 10 and the pile foundation structure are connected by the connecting parts 20, which can improve the connection reliability of the sacrificial anode structure on the pile foundation structure. In addition, the connecting parts 20 can disperse the connection stress between the main component 10 and the pile foundation structure, and avoid damage to the pile foundation structure due to stress concentration.

[0056] In order to enable the main component 10 to form a galvanic cell structure with the pile foundation structure and ensure the electrochemical protection of the pile foundation structure by the main component 10, each connecting part 20 is made of conductive material. In the main component 10, there can be multiple extensions 12, and the connecting parts 20 are arranged in a one-to-one correspondence with the extensions 12, with each extension 12 connected to the pile foundation structure through the connecting parts 20.

[0057] In some embodiments, such as Figure 5 As shown, the connecting part 20 has a first connecting hole 201 and a plurality of second connecting holes 202. The center of the first connecting hole 201 coincides with the center of the connecting part 20. One end of the extension 12 passes through the first connecting hole 201. The plurality of second connecting holes 202 are distributed around the first connecting hole 201. The connecting part 20 is connected to the pile foundation structure through the second connecting holes 202.

[0058] The connecting part 20 can be connected to the pile foundation structure by bolts. For example, bolts can be sequentially inserted into the second connecting hole 202 and the mounting hole provided on the pile foundation structure to complete the fixed connection of the connecting part 20 to the pile foundation structure. In addition, after the extension part 12 is inserted into the first connecting hole 201, it can also be connected to the connecting part 20 by bolts or other connecting parts.

[0059] In some embodiments, the pile foundation structure, the connecting part 20 and the main component 10 can also be connected by other connection methods, such as bonding, riveting or welding.

[0060] To further adapt to the outer surface of the offshore pile foundation structure, the connecting part 20 can be a cubic structure. For example, the connecting part 20 can be a steel plate structure with a length of 170 mm, a width of 170 mm, and a thickness of 20 mm. Of course, the specific shape, size, and material of the connecting part 20 can be selected and adapted according to the structure of the pile foundation structure, and this disclosure does not impose specific limitations.

[0061] The connection part 20 provided in this disclosure is disposed between the pile foundation structure and the main component 10 to form a connecting bridge between the pile foundation structure and the main component 10, thereby ensuring the connection reliability of the sacrificial anode structure on the pile foundation component and improving the effectiveness of the sacrificial anode structure in providing electrochemical protection to the pile foundation structure.

[0062] Other embodiments of this disclosure will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of this disclosure that follow the general principles of this disclosure and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this disclosure are indicated by the appended claims.

Claims

1. A sacrificial anode structure for an offshore photovoltaic system, the offshore photovoltaic system comprising a pile foundation structure, characterized in that, include: The main component is connected to the outer periphery of the pile foundation structure and is located below sea level; The main component includes a metal core and at least two extensions disposed on the metal core. The axis of the metal core is parallel to the axis of the pile foundation structure. The extensions bend from the axis of the metal core in a direction perpendicular to the axis of the metal core and extend away from the metal core. The extension directions of the plurality of extensions are parallel to each other. Multiple connecting parts are provided between the main body component and the pile foundation structure. The connecting parts and the extension parts are arranged in a one-to-one correspondence. Each extension part is connected to the pile foundation structure through the connecting parts. Each connecting part is made of conductive material.

2. The sacrificial anode structure for offshore photovoltaic systems according to claim 1, characterized in that, At least two stiffening plates are provided on the circumferential position of each of the extensions. The first side of each stiffening plate is fitted and connected to the connecting part, and the second side of each stiffening plate is fitted and connected to the extension. The first side and the second side are adjacent to each other.

3. The sacrificial anode structure for offshore photovoltaic systems according to claim 2, characterized in that, The ratio of the length of the second side of the stiffening plate to the length of the extension is 1:5 to 3:

5.

4. The sacrificial anode structure for offshore photovoltaic systems according to claim 3, characterized in that, The first side and the second side are perpendicular to each other; the multiple stiffening plates have the same shape and are evenly distributed on the circumferential position of the extension.

5. The sacrificial anode structure for offshore photovoltaic systems according to claim 2, characterized in that, The connecting part has a rectangular structure, and the number of stiffening plates provided on one of the connecting parts is 4. The 4 stiffening plates are arranged along the center of the connecting part towards the edge of the connecting part.

6. The sacrificial anode structure for a marine photovoltaic system according to any one of claims 2-5, characterized in that, The stiffening plate has a pentagonal structure or a right trapezoidal structure.

7. The sacrificial anode structure for offshore photovoltaic systems according to claim 1, characterized in that, The metal core includes an outer structure and an inner structure passing through the outer structure. The outer structure and the inner structure are made of different metals, and the length of the outer structure is less than the length of the inner structure.

8. The sacrificial anode structure for a marine photovoltaic system according to claim 7, characterized in that, The cross-section of the external structure is an isosceles trapezoid, and the internal structure passes through the external structure along the axial direction of the external structure.

9. The sacrificial anode structure for a marine photovoltaic system according to claim 7 or 8, characterized in that, The length of the outer structure is 70% to 90% of the length of the inner structure.

10. The sacrificial anode structure for a marine photovoltaic system according to claim 1, characterized in that, The connecting part has a first connecting hole and a plurality of second connecting holes. The center of the first connecting hole coincides with the center of the connecting part, and one end of the extension part passes through the first connecting hole. The plurality of second connecting holes are distributed around the first connecting hole, and the connecting part is connected to the pile foundation structure through the second connecting holes.

Images