Submarine Cable Laying System for Offshore Photovoltaic

Abstract

The present disclosure relates to the field of photovoltaic technology, and provides a submarine cable laying system for offshore photovoltaic power generation. The submarine cable laying system for offshore photovoltaic power generation includes: a grid framework, a cable channel, an operation and maintenance channel, a conversion platform, a connection channel, a box transformer support assembly, and a cable climbing frame. The grid framework is used to fix photovoltaic devices; the cable channel is fixed on the grid framework and is used to support cables; the operation and maintenance channel is fixed on the grid framework; the conversion platform is fixed above the sea surface, and the cable channel passes through the conversion platform; the connection channel is connected between the conversion platform and the operation and maintenance channel; the box transformer support assembly is used to support the box-type substation. The cable climbing frame includes a first cable climbing frame and a second cable climbing frame. The first cable climbing frame is fixed on the box transformer support assembly, and the second cable climbing frame is fixed on the operation and maintenance channel. Cables can be connected to the box-type substation through the operation and maintenance channel, the second cable climbing frame, and the first cable climbing frame. The submarine cable laying system for offshore photovoltaic power generation facilitates cable laying and maintenance.

Description

Technical Field

[0001] The present disclosure relates to the field of photovoltaic technology, and in particular to a submarine cable laying system for offshore photovoltaic power generation. Background Art

[0002] In related technologies, when it comes to offshore power generation projects, the laying of cables is a relatively large project. How to reasonably layout to meet the cable laying is also one of the difficulties in offshore power generation projects. In particular, the laying of cables above the sea surface is a more difficult task. And since the equipment needs to be connected by cables, it is necessary to ensure that the components are matched through appropriate structures.

[0003] It should be noted that the information disclosed in the above background art section is only used to enhance the understanding of the background of the present disclosure, and thus may include information that does not constitute the prior art known to those of ordinary skill in the art. Summary of the Invention

[0004] According to one aspect of the present disclosure, there is provided a submarine cable laying system for offshore photovoltaic power generation, the submarine cable laying system for offshore photovoltaic power generation including:

[0005] A grid framework, arranged above the sea surface through columns, the grid framework being used for fixing photovoltaic devices, and the photovoltaic devices being used for generating electric energy by using light energy;

[0006] A cable channel, fixed on the grid framework, the cable channel being used for supporting cables, and the cables being used for connecting the photovoltaic devices on the grid framework;

[0007] An operation and maintenance channel, fixed on the grid framework, a pedestrian passage being formed on the operation and maintenance channel;

[0008] A conversion platform, fixed above the sea surface, the conversion platform and the operation and maintenance channel being spaced apart in the horizontal direction, and the cable channel passing through the conversion platform;

[0009] A connection channel, connecting between the conversion platform and the operation and maintenance channel;

[0010] A box-type transformer support assembly, fixed above the sea surface, the box-type transformer support assembly being used for supporting a box-type substation, and the position where the box-type transformer support assembly is located being lower than the position where the operation and maintenance channel is located;

[0011] Cable climbing frame, the cable climbing frame includes a first cable climbing frame and a second cable climbing frame. The first cable climbing frame is fixed to the box-type transformer support assembly, and the first cable climbing frame is located above the box-type transformer support assembly. The first cable climbing frame extends in the vertical direction. The second cable climbing frame is fixed to the operation and maintenance passage, and the second cable climbing frame is located below the operation and maintenance passage. The second cable climbing frame extends in the vertical direction. The first cable climbing frame and the second cable climbing frame are spaced apart in the vertical direction. The cable can connect the box-type substation through the operation and maintenance passage, the second cable climbing frame, and the first cable climbing frame.

[0012] In an exemplary embodiment of the present disclosure, the conversion platform includes:

[0013] The bottom of the first support;

[0014] The operation and maintenance passage includes:

[0015] The bottom of the second support, and a hollow opening is formed in the bottom of the second support;

[0016] The connection passage includes:

[0017] The bottom of the third support, and the bottom of the third support is connected to the bottom of the first support;

[0018] The bottom of the fourth support, which is connected to one end of the bottom of the third support away from the bottom of the first support;

[0019] A vertical passage, which is connected between the bottom of the fourth support and the bottom of the second support, and at least part of the bottom of the fourth support and the hollow opening of the bottom of the second support are oppositely arranged in the vertical direction.

[0020] In an exemplary embodiment of the present disclosure, the position of the conversion platform is lower than the position of the operation and maintenance passage;

[0021] The bottom of the first support and the bottom of the third support are inclined, and the bottom of the fourth support is horizontal.

[0022] In an exemplary embodiment of the present disclosure, the conversion platform further includes:

[0023] A step structure, the step structure is fixed above the bottom of the first support, and the step structure has a horizontal support surface.

[0024] In an exemplary embodiment of the present disclosure, the cable climbing frame includes:

[0025] A climbing frame main body, which extends in the vertical direction;

[0026] A plurality of cable fixing member groups, and the plurality of cable fixing member groups are spaced apart along the extending direction of the climbing frame main body;

[0027] The cable fixing member group includes a plurality of cable fixing members. The plurality of cable fixing members in the same cable fixing member group are fixed at the same position of the climbing frame body in its extending direction, and the plurality of cable fixing members in the same cable fixing member group are spaced apart in the circumferential direction of the climbing frame body.

[0028] In an exemplary embodiment of the present disclosure, the cable fixing member includes:

[0029] A connecting rod, the first end of which is connected to the circumferential surface of the climbing frame body, and the extending direction of the connecting rod intersects with the extending direction of the climbing frame body;

[0030] A first fixing portion, which is fixed to the second end of the connecting rod;

[0031] A second fixing portion, which is detachably connected to the first fixing portion;

[0032] Wherein, the first fixing portion includes:

[0033] A first arc portion, the arc end face of the first arc portion is fixed to the second end of the connecting rod;

[0034] Two first straight portions, the two first straight portions are connected to the opposite ends of the first arc portion;

[0035] The second fixing portion includes:

[0036] A second arc portion;

[0037] Two second straight portions, the two second straight portions are connected to the opposite ends of the second arc portion;

[0038] The first arc portion and the second arc portion are spliced to form an annular structure. One first straight portion and one second straight portion are arranged opposite to each other, and the other first straight portion and the other second straight portion are arranged opposite to each other. The two pairs of the first straight portions and the second straight portions arranged opposite to each other are detachably connected.

[0039] In an exemplary embodiment of the present disclosure, the box-type substation support assembly includes:

[0040] A plurality of first base columns, at least part of the first base columns are fixed above the sea surface;

[0041] A box-type substation support platform, which is supported above the plurality of first base columns, and the box-type substation support platform is used to support the box-type substation;

[0042] Reinforcing main bars, which are located on the side of the box-type substation support platform facing the sea surface, and the reinforcing main bars are connected between adjacent first base columns;

[0043] The reinforcing secondary bars, and the reinforcing secondary bars and the reinforcing main bars form a grid structure.

[0044] In an exemplary embodiment of the present disclosure, the box-type substation support platform includes:

[0045] A first support platform, fixed above the first base column, for supporting the box-type substation;

[0046] A second support platform, connected to one side of the first support platform in a first direction;

[0047] The submarine cable laying system of the offshore photovoltaic also includes:

[0048] A bridge, which is used to support the cable, the bridge extends along a second direction, the bridge is fixed on the second support platform, and the first direction and the second direction intersect;

[0049] Wherein, the size of the second support platform in the second direction is smaller than the size of the first support platform in the second direction, and the side surface of the bridge and the first support platform facing the bridge are arranged opposite to each other in the first direction.

[0050] In an exemplary embodiment of the present disclosure, the conversion platform is fixed on the base column, and / or, the conversion platform is fixed on the grid.

[0051] In an exemplary embodiment of the present disclosure, the bridge has an upper side edge, and the upper side edge is used to support the cable;

[0052] The upper side edge of the bridge is fixed on the upper surface of the box-type substation support platform, and at least part of the structure of the bridge is located on the side of the box-type substation support platform facing the sea.

[0053] In an exemplary embodiment of the present disclosure, the submarine cable laying system of the offshore photovoltaic also includes:

[0054] A second base column, the conversion platform is fixed above the second base column;

[0055] A ladder, fixed on the second base column, and the ladder extends along the extending direction of the second base column.

[0056] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit the present disclosure. Description of the Drawings

[0057] The accompanying drawings herein are incorporated into and constitute a part of this specification, showing embodiments consistent with the present disclosure, and are used together with the specification to explain the principles of the present disclosure. Obviously, the accompanying drawings in the following description are only some embodiments of the present disclosure, and for those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0058] Figure 1 It is a schematic structural diagram of an exemplary embodiment of the submarine cable laying system for offshore photovoltaic of the present disclosure.

[0059] Figure 2 It is Figure 1 a side view of the submarine cable laying system for the offshore photovoltaic shown.

[0060] Figure 3 It is Figure 1 a partial enlarged view of the submarine cable laying system for the offshore photovoltaic shown.

[0061] Figure 4 It is Figure 1 a partial enlarged view of the submarine cable laying system for the offshore photovoltaic shown.

[0062] Figure 5 It is Figure 4 a top view of the submarine cable laying system for the offshore photovoltaic shown.

[0063] Figure 6 It is a schematic structural diagram of a cable climbing frame in an exemplary embodiment of the submarine cable laying system for offshore photovoltaic of the present disclosure.

[0064] Figure 7 It is Figure 6 a bottom view of the cable climbing frame shown. Detailed implementation manners

[0065] Example embodiments will now be described more fully with reference to the accompanying drawings. However, the example embodiments can be implemented in various forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be more complete and comprehensive, and will fully convey the concept of the example embodiments to those skilled in the art. Like reference numerals in the figures denote like or similar structures, and thus their detailed descriptions will be omitted.

[0066] The terms "a", "an", and "the" are used to denote the presence of one or more elements / components / etc.; the terms "comprising" and "having" are used to mean an open inclusion and mean that there may be additional elements / components / etc. in addition to the listed elements / components / etc.

[0067] In the description of the present disclosure, unless otherwise clearly specified and defined, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance; the term "plurality" means two or more; the term "and / or" includes any combination and all combinations of one or more of the associated listed items. In particular, referring to "the / a" object is also intended to mean one of the possible plurality of such objects.

[0068] Unless otherwise specified or stated, the terms "connected", "fixed", etc. shall be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, an integral connection, an electrical connection, or a signal connection; "connected" can be a direct connection or an indirect connection through an intermediate medium. For those skilled in the art, the specific meanings of the above terms in the present disclosure can be understood according to specific circumstances.

[0069] Furthermore, in the description of the present disclosure, it should be understood that the orientation terms such as "upper", "lower", "inner", "outer", etc. described in the exemplary embodiments of the present disclosure are described from the angles shown in the drawings and should not be construed as limiting the exemplary embodiments of the present disclosure. It should also be understood that in the context, when referring to an element or feature being connected to one or more "upper", "lower", or "inner", "outer" of another element, it can not only be directly connected to one or more other elements "upper", "lower", or "inner", "outer", but also be indirectly connected to one or more other elements "upper", "lower", or "inner", "outer" through an intermediate element.

[0070] As Figures 1 - 5 shown, Figure 1 is a schematic structural diagram of an exemplary embodiment of the submarine cable laying system for offshore photovoltaic of the present disclosure, Figure 2 is Figure 1 a side view of the submarine cable laying system for offshore photovoltaic shown, Figure 3 is Figure 1 a partial enlarged view of the submarine cable laying system for offshore photovoltaic shown, Figure 4 is Figure 1 a partial enlarged view of the submarine cable laying system for offshore photovoltaic shown, Figure 5 is Figure 4 a top view of the submarine cable laying system for offshore photovoltaic shown.

[0071] The submarine cable laying system for offshore photovoltaic power generation includes: a grid framework (not shown), a cable channel 1, an operation and maintenance channel 2, a conversion platform 3, a connection channel 4, a box-type substation support assembly 5, and a cable climbing frame 6. The grid framework is arranged above the sea surface through columns and is used to fix photovoltaic devices, which are used to generate electric energy by using light energy. The cable channel 1 is fixed on the grid framework and is used to support cables, which are used to connect the photovoltaic devices on the grid framework. The operation and maintenance channel 2 is fixed on the grid framework, and a pedestrian passage is formed on the operation and maintenance channel 2. The conversion platform 3 is fixed above the sea surface, and the conversion platform 3 and the operation and maintenance channel 2 are spaced apart in the horizontal direction. The cable channel 1 passes through the conversion platform 3. The connection channel 4 is connected between the conversion platform 3 and the operation and maintenance channel 2. The box-type substation support assembly 5 is fixed above the sea surface and is used to support the box-type substation. The position of the box-type substation support assembly 5 is lower than the position of the operation and maintenance channel 2. The cable climbing frame 6 includes a first cable climbing frame 61 and a second cable climbing frame 62. The first cable climbing frame 61 is fixed on the box-type substation support assembly 5 and is located above the box-type substation support assembly 5. The first cable climbing frame 61 extends in the vertical direction. The second cable climbing frame 62 is fixed on the operation and maintenance channel 2 and is located below the operation and maintenance channel 2. The second cable climbing frame 62 extends in the vertical direction. The first cable climbing frame 61 and the second cable climbing frame 62 are spaced apart in the vertical direction. Cables can connect the box-type substation through the operation and maintenance channel 2, the second cable climbing frame 62, and the first cable climbing frame 61.

[0072] In this exemplary embodiment, the cables connected to the photovoltaic devices can be sequentially connected to the box-type substation on the box-type substation support assembly 5 through the cable channel 1, the operation and maintenance channel 2, the second cable climbing frame 62, and the first cable climbing frame 61. This setting can effectively support the cables of the offshore photovoltaic system. Among them, the height of the grid framework and the operation and maintenance channel 2 fixed on the grid framework is relatively high, so as to facilitate the photovoltaic devices to receive sunlight. The height of the box-type substation support assembly 5 is relatively low, so as to facilitate the staff to load, unload, and repair the box-type substation. At the same time, the cable laying system can also enter the operation and maintenance channel 2 through the conversion platform 3 and the connection channel 4 to facilitate the inspection of devices such as cables and photovoltaic devices. In addition, the cable channel 1 passes through the conversion platform 3, and the staff can also inspect the cables on the cable channel 1 on the conversion platform 3.

[0073] In this exemplary embodiment, as Figures 1 - 5 shown, the cable channel 1 passes through the conversion platform 3, that is, the cable channel 1 penetrates through the conversion platform 3. The cable channel 1 and the conversion platform 3 can also be fixedly connected. This setting can further improve the structural stability of the cable channel 1.

[0074] In this exemplary embodiment, as Figures 1 - 5As shown, the cables on the cable channel 1 can enter the operation and maintenance channel 2 through the conversion platform 3 and the connection channel 4, or enter the operation and maintenance channel 2 through other paths.

[0075] In this exemplary embodiment, as Figures 1 - 5 shown, the extending direction of the cable channel 1 and the extending direction of the operation and maintenance channel 2 can be parallel or substantially parallel.

[0076] In this exemplary embodiment, as Figures 1 - 5 shown, the conversion platform 3 may include: a first support bottom 31; the operation and maintenance channel 2 includes: a second support bottom 21, and a hollow opening 211 is formed on the second support bottom 21; the connection channel 4 includes: a third support bottom 43, a fourth support bottom 44, and a vertical channel 45. The third support bottom 43 is connected to the first support bottom 31; the fourth support bottom 44 is connected to one end of the third support bottom 43 away from the first support bottom 31; the vertical channel 45 is connected between the fourth support bottom 44 and the second support bottom 21, and at least part of the fourth support bottom 44 and the hollow opening 211 of the second support bottom 21 are oppositely arranged in the vertical direction. In this exemplary embodiment, the third support bottom 43, the fourth support bottom 44, and the vertical channel 45 can connect the conversion platform 3 and the operation and maintenance channel 2. Among them, since the vertical channel 45 is connected to the bottom of the operation and maintenance channel 2, the staff can enter the interior of the operation and maintenance channel 2 through the hollow opening 211. Even if the staff falls when climbing the vertical channel 45, the fourth support bottom 44 can support the staff, so this setting can improve the safety of the staff climbing in the connection channel 4.

[0077] In this exemplary embodiment, as Figures 1 - 5 shown, the position of the conversion platform 3 is lower than the position of the operation and maintenance channel 2; the first support bottom 31 and the third support bottom 43 are inclined, and the fourth support bottom 44 is horizontally arranged. In this exemplary embodiment, the conversion platform 3 and the cable channel 1 can be arranged at the bottom of the grid, and the operation and maintenance channel 2 can be arranged at the side of the grid. Correspondingly, the position of the conversion platform 3 will be lower than the position of the operation and maintenance channel 2. In this exemplary embodiment, the first support bottom 31 and the third support bottom 43 can be inclined to make up for the height difference between the conversion platform 3 and the operation and maintenance channel 2. At the same time, in this exemplary embodiment, the fourth support bottom 44 is horizontally arranged, so that it is convenient for the staff to stand firm at the position of the fourth support bottom 44 when climbing the vertical channel 45.

[0078] In this exemplary embodiment, as Figures 1 - 5As shown, the conversion platform 3 further includes: a step structure 32, which is fixed above the bottom 31 of the first support. The step structure 32 has a horizontal support surface. In this exemplary embodiment, the step structure 32 with a horizontal support surface is provided on the inclined bottom 31 of the first support, so as to facilitate the staff to stand on the bottom 31 of the first support or facilitate placing items on the bottom 31 of the first support.

[0079] In this exemplary embodiment, as Figures 1 - 5 shown, the box transformer support assembly 5 includes: a plurality of first base columns 51, a box transformer support platform 52, reinforcing main bars 53, and reinforcing auxiliary bars 54. At least a part of the first base columns 51 is fixed above the sea surface; the box transformer support platform 52 is supported above the plurality of first base columns 51, and the box transformer support platform 52 is used to support the box-type substation; the reinforcing main bars 53 are located on the side of the box transformer support platform 52 facing the sea surface, and the reinforcing main bars 53 are connected between adjacent first base columns 51; the reinforcing auxiliary bars 54 and the reinforcing main bars 53 form a grid structure. The cross-sectional area of the reinforcing main bars 53 is larger than the cross-sectional area of the reinforcing auxiliary bars 54. In this exemplary embodiment, the reinforcing main bars 53 can connect the plurality of first base columns 51 into an integral structure, thereby increasing the stability of the first base columns 51. In addition, the grid structure formed by the reinforcing auxiliary bars 54 and the reinforcing main bars 53 can also be used as an auxiliary support platform to store other materials.

[0080] In this exemplary embodiment, as Figures 1 - 5 shown, the box transformer support platform 52 may include: a first support platform 521 and a second support platform 522. The first support platform 521 is used to support the box-type substation; the second support platform 522 is connected to one side of the first support platform 521 in the first direction X; the submarine cable laying system of the offshore photovoltaic also includes: a bridge 9, which is used to support the cable. The bridge 9 extends along the second direction Y and is fixed on the second support platform 522. The first direction X and the second direction Y intersect, and the first direction X and the second direction Y can be parallel to the horizontal direction; wherein, the size of the second support platform 522 in the second direction Y is smaller than the size of the first support platform 521 in the second direction Y, so that one side of the first support platform 521 facing the bridge 9 has a side surface 5211, and the side surface 5211 and the bridge 9 can be arranged opposite to each other in the first direction X, that is, the side surface 5211 is located on the moving path of the bridge 9 in the first direction X, and the side surface 5211 can limit the bridge 9 to prevent the bridge 9 from moving in the first direction.

[0081] In this exemplary embodiment, as Figures 1 - 5As shown, the cable bridge 9 has an upper side edge 91 which can be used to support cables. The upper side edge 91 of the cable bridge 9 can be fixed on the upper surface of the box-type transformer support platform 52, and at least part of the structure of the cable bridge 9 is located on the side of the box-type transformer support platform 52 facing the sea. On the one hand, when the cable bridge 9 is tilted, it will not fall on the box-type transformer support platform 52, that is, when the cable bridge 9 falls, it will not damage devices such as box-type transformers on the box-type transformer support platform 52. On the other hand, the cable bridge 9 will not occupy the space above the box-type transformer support platform 52.

[0082] In this exemplary embodiment, as Figures 1 - 5 shown, the cable channel 1 may include a plurality of sub-channels 101 arranged at intervals. The sub-channels 101 may be pipe structures, and cables may be threaded through the sub-channels 101.

[0083] In this exemplary embodiment, the conversion platform 3 may be fixed above the foundation pile, and / or the conversion platform 3 may also be fixed on the grid.

[0084] In this exemplary embodiment, the submarine cable laying system for offshore photovoltaic power generation further includes: a second foundation column 10, a ladder 11. The conversion platform 3 may be fixed above the second foundation column 10; the ladder 11 is fixed on the second foundation column 10 and extends along the extension direction of the second foundation column 10.

[0085] In this exemplary embodiment, as Figure 6 、 7 shown, Figure 6 is a schematic structural diagram of a cable climbing frame in an exemplary embodiment of the submarine cable laying system for offshore photovoltaic power generation disclosed in the present disclosure. Figure 7 is Figure 6 the bottom view of the cable climbing frame shown.

[0086] The cable climbing frame 6 includes: a climbing frame main body 7, a plurality of cable fixing member groups 8. The climbing frame main body 7 extends in the vertical direction; the plurality of cable fixing member groups 8 are distributed at intervals along the extension direction of the climbing frame main body 7; the cable fixing member group 8 includes a plurality of cable fixing members 81. The plurality of cable fixing members 81 in the same cable fixing member group 8 are fixed at the same position of the climbing frame main body 7 in its extension direction, and the plurality of cable fixing members 81 in the same cable fixing member group 8 are distributed at intervals in the circumferential direction of the climbing frame main body 7. Different cable fixing members 81 in the same cable fixing member group 8 can respectively fix the cables, and this setting can increase the number of cables fixed on the cable climbing frame 6. In addition, the cables of the plurality of cable fixing members 81 in the same cable fixing member group 8 will generate acting forces on the climbing frame main body 7 in different directions, and this setting can reduce the risk of the climbing frame main body 7 falling.

[0087] In this exemplary embodiment, an even number of cable fixtures 81 may be included in the same cable fixture group 8. The even number of cable fixtures 81 may form a plurality of cable fixture pairs. The same cable fixture pair may include two cable fixtures. The two cable fixtures 81 in the same cable fixture pair may be symmetrically arranged about the central axis of the climbing frame body 7. The cables within the symmetrically arranged cable fixtures 81 may balance the center of gravity of the cable climbing frame 6, so that the center of gravity of the cable climbing frame 6 is located at or near the position of the central axis of the climbing frame body 7, thereby further reducing the risk of the climbing frame body 7 tipping over.

[0088] In this exemplary embodiment, the cable fixture 81 includes: a connecting rod 811, a first fixing portion 812, and a second fixing portion 813. The first end of the connecting rod 811 is connected to the circumferential surface of the climbing frame body 7, and the extending direction of the connecting rod 811 intersects with the extending direction of the climbing frame body 7; the first fixing portion 812 is fixed to the second end of the connecting rod 811; the second fixing portion 813 is detachably connected to the first fixing portion 812. The first fixing portion 812 and the second fixing portion 813 may be used to fix the cable, and the detachable connection between the first fixing portion 812 and the second fixing portion 813 may facilitate the disassembly and assembly of the cable. The first fixing portion 812 and the second fixing portion 813 are combined to form a fixing portion, and the connecting rod 811 can increase the distance between the fixing portion and the climbing frame body 7. Multiple groups of fixing portions in the same cable fixture group 8 may be distributed on a larger circumference, and this arrangement can facilitate the arrangement of a larger number of cable fixtures 81 around the climbing frame body 7.

[0089] In this exemplary embodiment, the first fixing part 812 includes: a first arc part 8121 and two first straight parts 8122. The arc end face of the first arc part 8121 is fixed to the second end of the connecting rod 811. The two first straight parts 8122 are connected to the opposite ends of the first arc part 8121. The second fixing part 813 includes: a second arc part 8131 and two second straight parts 8132. The two second straight parts 8132 are connected to the opposite ends of the second arc part 8131. The first arc part 8121 and the second arc part 8131 are spliced to form an annular structure. One first straight part 8122 and one second straight part 8132 are arranged oppositely, and the other first straight part 8122 and the other second straight part 8132 are arranged oppositely. The two pairs of oppositely arranged first straight parts 8122 and second straight parts 8132 are detachably connected. The annular structure formed by splicing the first arc part 8121 and the second arc part 8131 can facilitate the fixing of the cylindrical cable. The first straight part 8122 and the second straight part 8132 can be detachably connected by means of bolts or the like. Specifically, the bolt connecting the first straight part 8122 and the second straight part 8132 may include a bolt head 111, a threaded rod 113, and a limiting tail 112. The threaded rod 113 is connected between the bolt head 111 and the limiting tail 112. The threaded rod 113 passes through the first straight part 8122 and the second straight part 8132. A nut 114 is sleeved on the threaded rod 113 passing through the first straight part 8122 and the second straight part 8132. The nut 114 is limited between the limiting tail 112 and the first straight part 8122 and the second straight part 8132. The limiting tail 112 can be welded or bonded to the threaded rod after the nut is sleeved on the threaded rod. This setting can not only realize the separation and closing of the first fixing part 812 and the second fixing part 813, but also prevent the first fixing part 812 and the second fixing part 813 from completely falling off and injuring people or objects.

[0090] After considering the specification and the practice of the content disclosed herein, those skilled in the art will readily think of other embodiments of the present disclosure. This application aims to cover any variations, uses, or adaptations of the present disclosure, which follow the general principles of the present disclosure and include the common general knowledge or conventional technical means in the technical field not disclosed in the present disclosure. The specification and the embodiments are only regarded as exemplary, and the true scope and spirit of the present disclosure are pointed out by the claims.

[0091] It should be understood that the present disclosure is not limited to the exact structure already described and shown in the drawings, and various modifications and changes can be made without departing from its scope. The scope of the present disclosure is only defined by the appended claims.

Claims

1. A submarine cable laying system for offshore photovoltaics, characterized in that: The offshore photovoltaic submarine cable laying system comprises: A grid is arranged above the sea surface through columns, and the grid is used to fix photovoltaic equipment, and the photovoltaic equipment is used to generate electrical energy using light energy; A cable channel (1) is fixed on the grid, the cable channel (1) is used to support cables, and the cables are used to connect photovoltaic equipment on the grid; An operation and maintenance passage (2) is fixed on the grid, and a pedestrian passage is formed on the operation and maintenance passage (2); A conversion platform (3) is fixed above the sea surface, the conversion platform (3) and the operation and maintenance channel (2) are spaced apart in the horizontal direction, and the cable channel (1) passes through the conversion platform (3); A connecting channel (4) connected between the conversion platform (3) and the operation and maintenance channel (2); A box-type transformer support assembly (5) is fixed above the sea surface, the box-type transformer support assembly (5) is used to support the box-type transformer substation, and the position of the box-type transformer support assembly (5) is lower than the position of the operation and maintenance channel (2); A cable climbing frame (6), the cable climbing frame (6) comprising a first cable climbing frame (61) and a second cable climbing frame (62), the first cable climbing frame (61) being fixed to the box-type transformer support assembly (5), and the first cable climbing frame (61) being located above the box-type transformer support assembly (5), the first cable climbing frame (61) extending in a vertical direction, the second cable climbing frame (62) being fixed to the operation and maintenance passage (2), and the second cable climbing frame (62) being located below the operation and maintenance passage (2), the second cable climbing frame (62) extending in a vertical direction, the first cable climbing frame (61) and the second cable climbing frame (62) being arranged at intervals in the vertical direction, and the cables can be connected to the box-type transformer substation through the operation and maintenance passage (2), the second cable climbing frame (62) and the first cable climbing frame (61); The box-type transformer support assembly (5) comprises: A plurality of first base columns (51), at least a portion of the first base columns (51) being fixed above the sea surface; A box-type transformer support platform (52) is supported above the plurality of first base columns (51), and the box-type transformer support platform (52) is used to support the box-type transformer station; A reinforcing main rib (53) located on a side of the box-type transformer support platform (52) facing the sea surface, the reinforcing main rib (53) being connected between adjacent first base columns (51); A reinforcing secondary rib (54), wherein the reinforcing secondary rib (54) and the reinforcing main rib (53) form a grid structure; The box-type transformer support platform (52) comprises: A first supporting platform (521), fixed above the first base column (51), and used for supporting the box-type substation; A second supporting platform (522) connected to one side of the first supporting platform (521) in a first direction (X); The offshore photovoltaic submarine cable laying system also includes: A bridge (9), the bridge (9) being used to support the cable, the bridge (9) extending along a second direction (Y), the bridge (9) being fixed on the second supporting platform (522), and the first direction (X) and the second direction (Y) intersecting; The size of the second supporting platform (522) in the second direction (Y) is smaller than the size of the first supporting platform (521) in the second direction (Y), and the side surface (5211) of the first supporting platform (521) facing the bridge frame (9) and the bridge frame (9) are arranged opposite to each other in the first direction (X); The bridge (9) has an upper side (91), and the upper side (91) is used to support the cable; The upper side edge (91) of the bridge is fixed on the upper surface of the box-type transformer support platform (52), and at least part of the structure of the bridge (9) is located on the side of the box-type transformer support platform (52) facing the sea surface.

2. The offshore photovoltaic submarine cable laying system according to claim 1, characterized in that: The conversion platform (3) comprises: a first support bottom (31); The operation and maintenance channel (2) includes: A second supporting bottom (21), wherein the second supporting bottom (21) is formed with a hollow opening (211); The connecting channel (4) comprises: A third supporting bottom portion (43), the third supporting bottom portion (43) being connected to the first supporting bottom portion (31); a fourth supporting bottom portion (44) connected to an end of the third supporting bottom portion (43) away from the first supporting bottom portion (31); The vertical channel (45) is connected between the fourth supporting bottom (44) and the second supporting bottom (21), and at least a portion of the fourth supporting bottom (44) and the hollow opening (211) of the second supporting bottom (21) are arranged opposite to each other in the vertical direction.

3. The offshore photovoltaic submarine cable laying system according to claim 2, characterized in that: The location of the conversion platform (3) is lower than the location of the operation and maintenance channel (2); The first supporting bottom (31) and the third supporting bottom (43) are arranged obliquely, and the fourth supporting bottom (44) is arranged horizontally.

4. The offshore photovoltaic submarine cable laying system according to claim 3, characterized in that: The conversion platform (3) further comprises: A step structure (32), wherein the step structure (32) is fixed above the first supporting bottom (31), and the step structure (32) has a horizontal supporting surface.

5. The offshore photovoltaic submarine cable laying system according to claim 1, characterized in that: The cable climbing frame (6) comprises: The climbing frame body (7) extends in the vertical direction; A plurality of cable fixing member groups (8), wherein the plurality of cable fixing member groups (8) are distributed at intervals along the extension direction of the climbing frame body (7); The cable fixing member group (8) comprises a plurality of cable fixing members (81), wherein the plurality of cable fixing members (81) in the same cable fixing member group (8) are fixed to the same position of the climbing frame body (7) in its extension direction, and the plurality of cable fixing members (81) in the same cable fixing member group (8) are spaced apart and distributed in the circumferential direction of the climbing frame body (7).

6. The offshore photovoltaic submarine cable laying system according to claim 5, characterized in that: The cable fixing member (81) comprises: A connecting rod (811), the first end of which is connected to the peripheral surface of the climbing frame body (7), and the extending direction of the connecting rod (811) intersects with the extending direction of the climbing frame body (7); A first fixing portion (812) fixed to the second end of the connecting rod (811); A second fixing portion (813) detachably connected to the first fixing portion (812); Wherein, the first fixing portion (812) comprises: A first arc-shaped portion (8121), wherein the arc-shaped end surface of the first arc-shaped portion (8121) is fixed to the second end of the connecting rod (811); Two first straight portions (8122), the two first straight portions (8122) being connected to opposite ends of the first arc-shaped portion (8121); The second fixing portion (813) comprises: A second arc portion (8131); Two second straight portions (8132), wherein the two second straight portions (8132) are connected to opposite ends of the second arc-shaped portion (8131); The first arc-shaped portion (8121) and the second arc-shaped portion (8131) are spliced ​​to form an annular structure; one first straight portion (8122) and one second straight portion (8132) are arranged opposite to each other; another first straight portion (8122) and another second straight portion (8132) are arranged opposite to each other; and the two pairs of the first straight portions (8122) and the second straight portions (8132) arranged opposite to each other are detachably connected.

7. The offshore photovoltaic submarine cable laying system according to claim 1, characterized in that: The offshore photovoltaic submarine cable laying system also includes: A second base column (10), the conversion platform (3) being fixed above the second base column (10); A ladder (11) is fixed on the second base column (10), and the ladder (11) extends along the extension direction of the second base column (10).

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