Offshore photovoltaic submarine cable laying system

Abstract

The invention relates to the field of photovoltaic technology, and provides an offshore photovoltaic submarine cable laying system which comprises a net rack, a cable channel, an operation and maintenance channel, a conversion platform, a connection channel, a box transformer substation supporting assembly and a cable climbing frame. The net rack is used for fixing photovoltaic equipment; the cable channel is fixed on the net rack and is used for supporting a cable; the operation and maintenance channel is fixed on the net rack; the conversion platform is fixed above the sea surface, and the cable channel passes through the conversion platform; the connecting channel is connected between the conversion platform and the operation and maintenance channel; the box-type transformer substation supporting assembly is used for supporting the box-type transformer substation, the cable climbing frame comprises a first cable climbing frame and a second cable climbing frame, the first cable climbing frame is fixed on the box-type transformer substation supporting assembly, the second cable climbing frame is fixed on the operation and maintenance channel, and a cable can pass through the operation and maintenance channel, the second cable climbing frame and the first cable climbing frame to be connected with the box-type transformer substation. The offshore photovoltaic submarine cable laying system is convenient for 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 photovoltaics. Background Art

[0002] In the related technologies, when it comes to offshore power generation projects, cable laying is a relatively large project. How to reasonably lay out and then meet the cable laying is also one of the difficulties of offshore power generation projects. In particular, the laying of cables above the sea surface is a more difficult task, and because 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 technology section is only used to enhance the understanding of the background of the present disclosure, and therefore may include information that does not constitute the prior art known to ordinary technicians in the field. Summary of the invention

[0004] According to one aspect of the present disclosure, a submarine cable laying system for offshore photovoltaics is provided, the submarine cable laying system for offshore photovoltaics comprising: 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 is fixed on the grid, the cable channel is used to support cables, and the cables are used to connect the photovoltaic equipment on the grid; An operation and maintenance passage is fixed on the grid, and a pedestrian passage is formed on the operation and maintenance passage; A conversion platform is fixed above the sea surface, the conversion platform and the operation and maintenance channel are spaced apart in the horizontal direction, and the cable channel passes through the conversion platform; A connection channel, connected between the conversion platform and the operation and maintenance channel; A box-type transformer support assembly is fixed above the sea surface, and is used to support the box-type transformer substation. The position of the box-type transformer support assembly is lower than the position of the operation and maintenance channel; A 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 a vertical direction, the second cable climbing frame is fixed to the operation and maintenance channel, and the second cable climbing frame is located below the operation and maintenance channel, the second cable climbing frame extends in a vertical direction, the first cable climbing frame and the second cable climbing frame are spaced apart in the vertical direction, and the cable 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.

[0005] In an exemplary embodiment of the present disclosure, the conversion platform includes: First support bottom; The operation and maintenance channel includes: A second supporting bottom, wherein the second supporting bottom is formed with a hollow opening; The connection channel comprises: a third supporting bottom portion, the third supporting bottom portion being connected to the first supporting bottom portion; A fourth supporting bottom portion, connected to an end of the third supporting bottom portion away from the first supporting bottom portion; A vertical channel is connected between the fourth supporting bottom and the second supporting bottom, and at least a portion of the fourth supporting bottom and the hollow opening of the second supporting bottom are arranged opposite to each other in the vertical direction.

[0006] In an exemplary embodiment of the present disclosure, the position of the conversion platform is lower than the position of the operation and maintenance channel; The first supporting bottom and the third supporting bottom are arranged obliquely, and the fourth supporting bottom is arranged horizontally.

[0007] In an exemplary embodiment of the present disclosure, the conversion platform further includes: A step structure is fixed above the first supporting bottom, and the step structure has a horizontal supporting surface.

[0008] In an exemplary embodiment of the present disclosure, the cable climbing frame comprises: The climbing frame body extends in the vertical direction; A plurality of cable fixing member groups, wherein the plurality of cable fixing member groups are distributed at intervals along the extension direction of the climbing frame body; The cable fixing member group includes a plurality of cable fixing members, and 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 extension direction, and the plurality of cable fixing members in the same cable fixing member group are spaced apart and distributed in the circumferential direction of the climbing frame body.

[0009] In an exemplary embodiment of the present disclosure, the cable fixing member comprises: 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; A first fixing portion, fixed to the second end of the connecting rod; a second fixing portion, detachably connected to the first fixing portion; Wherein, the first fixing portion comprises: a first arc-shaped portion, wherein an arc-shaped end surface of the first arc-shaped portion is fixed to the second end of the connecting rod; Two first straight portions, the two first straight portions being connected to opposite ends of the first arc-shaped portion; The second fixing portion comprises: a second arc-shaped portion; Two second straight portions, wherein the two second straight portions are connected to opposite ends of the second arc-shaped portion; The first arcuate portion and the second arcuate portion are spliced ​​to form an annular structure, one first straight portion and one second straight portion are arranged opposite to each other, another first straight portion and another second straight portion are arranged opposite to each other, and the two pairs of the first straight portions and the second straight portions arranged opposite to each other are detachably connected.

[0010] In an exemplary embodiment of the present disclosure, the box-type transformer support assembly includes: A plurality of first columns, at least a portion of the first columns being fixed above the sea surface; A box-type transformer support platform, supported above the plurality of first pillars, the box-type transformer support platform being used to support the box-type transformer station; A reinforcing main rib is located on the side of the box-type transformer support platform facing the sea surface, and the reinforcing main rib is connected between adjacent first columns; The reinforcing secondary reinforcements and the reinforcing primary reinforcements form a grid structure.

[0011] In an exemplary embodiment of the present disclosure, the box-type transformer support platform includes: A first supporting platform, fixed above the first base column, for supporting the box-type substation; A second supporting platform connected to one side of the first supporting platform in the first direction; The offshore photovoltaic submarine cable laying system also includes: A bridge, the bridge is used to support the cable, the bridge extends along a second direction, the bridge is fixed on the second supporting platform, and the first direction and the second direction intersect; The size of the second supporting platform in the second direction is smaller than the size of the first supporting platform in the second direction, and the bridge and the side surfaces of the first supporting platform facing the bridge are arranged opposite to each other in the first direction.

[0012] In an exemplary embodiment of the present disclosure, the conversion platform is fixed on the foundation piles, and / or the conversion platform is fixed on the grid.

[0013] In an exemplary embodiment of the present disclosure, the bridge has an upper side, and the upper side is used to support the cable; The upper side of the bridge is fixed on the upper surface of the box-type transformer support platform, and at least part of the structure of the bridge is located on the side of the box-type transformer support platform facing the sea surface.

[0014] In an exemplary embodiment of the present disclosure, the offshore photovoltaic submarine cable laying system further includes: A second base column, the conversion platform is fixed above the second base column; A ladder is fixed on the second base column, and the ladder extends along the extension direction of the second base column.

[0015] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings herein are incorporated into the specification and constitute a part of the specification, illustrate embodiments consistent with the present disclosure, and together with the specification are used to explain the principles of the present disclosure. Obviously, the accompanying drawings described below are only some embodiments of the present disclosure, and for ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without creative work.

[0017] Figure 1 It is a structural schematic diagram of an exemplary embodiment of the submarine cable laying system for offshore photovoltaics disclosed in the present invention.

[0018] Figure 2 for Figure 1 A side view of the submarine cable laying system for offshore photovoltaics is shown.

[0019] Figure 3 for Figure 1 A partial enlarged view of the submarine cable laying system for offshore photovoltaics is shown.

[0020] Figure 4 for Figure 1 A partial enlarged view of the submarine cable laying system for offshore photovoltaics is shown.

[0021] Figure 5 for Figure 4 A top view of the submarine cable laying system for offshore photovoltaics is shown.

[0022] Figure 6 This is a schematic structural diagram of a cable climbing frame in an exemplary embodiment of a submarine cable laying system for offshore photovoltaics disclosed herein.

[0023] Figure 7 for Figure 6 Bottom view of the cable climber shown. DETAILED DESCRIPTION

[0024] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in a variety of forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that the present disclosure will be more comprehensive and complete and will fully convey the concepts of the example embodiments to those skilled in the art. The same reference numerals in the figures represent the same or similar structures, and thus their detailed description will be omitted.

[0025] The terms "a", "an", and "said" are used to indicate the presence of one or more elements / components / etc.; the terms "comprising" and "having" are used to indicate an open-ended inclusive meaning and mean that additional elements / components / etc. may be present in addition to the listed elements / components / etc.

[0026] In the description of the present disclosure, unless otherwise clearly specified and limited, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance; the term "plurality" refers to two or more; the term "and / or" includes any and all combinations of one or more associated listed items. In particular, reference to "the / the" object or "an" object is also intended to indicate one of a possible plurality of such objects.

[0027] Unless otherwise specified or explained, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, an integral connection, an electrical connection, or a signal connection; "connection" 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 this disclosure can be understood according to specific circumstances.

[0028] Further, in the description of the present disclosure, it should be understood that the directional words such as "upper", "lower", "inner", "outer" and the like described in the exemplary embodiments of the present disclosure are described at the angles shown in the accompanying drawings and should not be understood as limitations on the exemplary embodiments of the present disclosure. It should also be understood that, in the context, when it is mentioned that an element or feature is connected to one or more "upper", "lower", or "inner", "outer" of another element, it can not only be directly connected to the "upper", "lower", "inner", "outer" of another element or elements, but can also be indirectly connected to the "upper", "lower", "inner", "outer" of another element or elements through an intermediate element.

[0029] like Figure 1-5 As shown, Figure 1 This is a structural schematic diagram of an exemplary embodiment of the submarine cable laying system for offshore photovoltaics disclosed in the present invention. Figure 2 for Figure 1 A side view of the submarine cable laying system for offshore photovoltaics is shown. Figure 3 for Figure 1The enlarged partial view of the submarine cable laying system for offshore photovoltaics is shown. Figure 4 for Figure 1 The enlarged partial view of the submarine cable laying system for offshore photovoltaics is shown. Figure 5 for Figure 4 A top view of the submarine cable laying system for offshore photovoltaics is shown.

[0030] The submarine cable laying system for offshore photovoltaics includes: a grid (not shown), a cable channel 1, an operation and maintenance channel 2, a conversion platform 3, a connecting channel 4, a box-type transformer support assembly 5, and a cable climbing frame 6. The grid is set above the sea surface through columns. The grid is used to fix photovoltaic equipment, and the photovoltaic equipment is used to generate electricity using light energy; the cable channel 1 is fixed on the grid, and the cable channel 1 is used to support cables, and the cables are used to connect the photovoltaic equipment on the grid; the operation and maintenance channel 2 is fixed on the grid, 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, and the cable channel 1 passes through the conversion platform 3; the connecting channel 4 is connected between the conversion platform 3 and the operation and maintenance channel 2; the box-type transformer support assembly 5 is fixed on Above the sea surface, the box transformer support assembly 5 is used to support the box-type substation, and the position of the box transformer 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 to the box transformer support assembly 5, and the first cable climbing frame 61 is located above the box transformer support assembly 5, the first cable climbing frame 61 extends in the vertical direction, the second cable climbing frame 62 is fixed to the operation and maintenance channel 2, and the second cable climbing frame 62 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, and the cables can be connected to the box-type substation through the operation and maintenance channel 2, the second cable climbing frame 62, and the first cable climbing frame 61.

[0031] In this exemplary embodiment, the cables connected to the photovoltaic equipment can pass through the cable channel 1 and the operation and maintenance channel 2 in sequence, and the second cable climbing frame 62 and the first cable climbing frame 61 are connected to the box-type substation on the box-type transformer support assembly 5. This setting can achieve effective support for the cables of the offshore photovoltaic system. Among them, the height of the grid and the operation and maintenance channel 2 fixed to the grid is relatively high, so that it is convenient for the photovoltaic equipment to receive sunlight, and the height of the box-type transformer support assembly 5 is relatively low, so that it is convenient for the staff to load and 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 connecting channel 4 to inspect and repair the cables, photovoltaic equipment and other devices. In addition, the cable channel 1 passes through the conversion platform 3, and the staff can also inspect and repair the cables on the cable channel 1 on the conversion platform 3.

[0032] In this exemplary embodiment, Figure 1-5As shown, the cable channel 1 passes through the conversion platform 3, that is, the cable channel 1 passes through the conversion platform 3, and the cable channel 1 and the conversion platform 3 can also be fixedly connected. This arrangement can further improve the structural stability of the cable channel 1.

[0033] In this exemplary embodiment, Figure 1-5 As shown, the cables on the cable channel 1 can enter the operation and maintenance channel 2 through the conversion platform 3 and the connecting channel 4, and can also enter the operation and maintenance channel 2 through other paths.

[0034] In this exemplary embodiment, Figure 1-5 As shown, the extension direction of the cable channel 1 and the extension direction of the operation and maintenance channel 2 can be parallel or approximately parallel.

[0035] In this exemplary embodiment, Figure 1-5 As 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 the second support bottom 21 is formed with a hollow opening 211; the connecting 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 an 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 a part of the fourth support bottom 44 is arranged opposite to the hollow opening 211 of the second support bottom 21 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 operation and maintenance channel 2 through the hollow opening 211. Even if the staff falls while climbing the vertical channel 45, the fourth support bottom 44 can also support the staff. Therefore, this setting can improve the safety of the staff climbing in the connecting channel 4.

[0036] In this exemplary embodiment, Figure 1-5 As 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 on 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 compensate 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 firmly at the position of the fourth support bottom 44 when climbing the vertical channel 45.

[0037] In this exemplary embodiment, Figure 1-5 As shown, the conversion platform 3 further includes: a step structure 32, which is fixed above the first support bottom 31, and the step structure 32 has a horizontal support surface. In this exemplary embodiment, the step structure 32 with a horizontal support surface is arranged on the inclined first support bottom 31, so that it is convenient for workers to stand on the first support bottom 31, or to place objects on the first support bottom 31.

[0038] In this exemplary embodiment, Figure 1-5 As shown, the box-type transformer support assembly 5 includes: a plurality of first columns 51, a box-type transformer support platform 52, a reinforcing main rib 53, and a reinforcing secondary rib 54. The first column 51 is at least partially fixed above the sea surface; the box-type transformer support platform 52 is supported above the plurality of first columns 51, and the box-type transformer support platform 52 is used to support the box-type transformer station; the reinforcing main rib 53 is located on the side of the box-type transformer support platform 52 facing the sea surface, and the reinforcing main rib 53 is connected between adjacent first columns 51; the reinforcing secondary rib 54 and the reinforcing main rib 53 form a grid structure. The cross-sectional area of ​​the reinforcing main rib 53 is greater than the cross-sectional area of ​​the reinforcing secondary rib 54. In this exemplary embodiment, the reinforcing main rib 53 can connect the plurality of first columns 51 into an integral structure, thereby increasing the stability of the first columns 51. In addition, the grid structure formed by the reinforcing secondary rib 54 and the reinforcing main rib 53 can also be used as an auxiliary support platform to store other materials.

[0039] In this exemplary embodiment, Figure 1-5 As shown, the box-type 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 transformer substation; the second support platform 522 is connected to one side of the first support platform 521 in the first direction X; the offshore photovoltaic submarine cable laying system also includes: a bridge 9, the bridge 9 is used to support the cable, the bridge 9 extends along the second direction Y, and the bridge 9 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 the first support platform 521 has a side 5211 facing the bridge 9, and the side 5211 and the bridge 9 can be arranged relative to each other in the first direction X, that is, the side 5211 is located on the path of the bridge 9 moving along the first direction X, and the side 5211 can limit the bridge 9 to prevent the bridge 9 from moving in the first direction.

[0040] In this exemplary embodiment, Figure 1-5As shown, the bridge 9 has an upper side 91, which can be used to support cables. The upper side 91 of the 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 bridge 9 is located on the side of the box-type transformer support platform 52 facing the sea surface. On the one hand, when the bridge 9 is tilted, it will not fall over the box-type transformer support platform 52, that is, when the bridge 9 falls, it will not cause damage to the box-type transformer and other devices on the box-type transformer support platform 52. On the other hand, the bridge 9 will not occupy the space above the box-type transformer support platform 52.

[0041] In this exemplary embodiment, Figure 1-5 As shown, the cable channel 1 may include a plurality of sub-channels 101 that are spaced apart from each other. The sub-channels 101 may be a pipeline structure, and the cables may be passed through the sub-channels 101 .

[0042] In this exemplary embodiment, the conversion platform 3 may be fixed above the foundation piles, and / or, the conversion platform 3 may also be fixed on the grid.

[0043] In this exemplary embodiment, the submarine cable laying system for offshore photovoltaics also includes: a second base column 10 and a ladder 11. The conversion platform 3 can be fixed above the second base column 10; the 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.

[0044] In this exemplary embodiment, Figure 6 , 7 As shown, Figure 6 This is a schematic structural diagram of a cable climbing frame in an exemplary embodiment of a submarine cable laying system for offshore photovoltaics disclosed herein. Figure 7 for Figure 6 Bottom view of the cable climber shown.

[0045] The cable climbing frame 6 includes: a climbing frame body 7, a plurality of cable fixing component groups 8, the climbing frame body 7 extends in the vertical direction; the plurality of cable fixing component groups 8 are spaced apart along the extension direction of the climbing frame body 7; the cable fixing component group 8 includes a plurality of cable fixing components 81, the plurality of cable fixing components 81 in the same cable fixing component group 8 are fixed to the same position of the climbing frame body 7 in its extension direction, and the plurality of cable fixing components 81 in the same cable fixing component group 8 are spaced apart in the circumferential direction of the climbing frame body 7. Different cable fixing components 81 in the same cable fixing component group 8 can fix cables respectively, and this arrangement can increase the number of cables fixed on the cable climbing frame 6. In addition, the cables in the plurality of cable fixing components 81 in the same cable fixing component group 8 will exert forces on the climbing frame body 7 in different directions, and this arrangement can reduce the risk of the climbing frame body 7 tipping over.

[0046] In this exemplary embodiment, the same cable fixing group 8 may include an even number of cable fixings 81, an even number of cable fixings 81 may form a plurality of cable fixing pairs, the same cable fixing pair may include two cable fixings, the two cable fixings 81 in the same cable fixing pair may be symmetrically arranged with respect to the central axis of the climbing frame body 7, the cables in the centrally symmetrical cable fixings 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 the central axis position of the climbing frame body 7 or near the central axis, thereby further reducing the risk of tipping over of the climbing frame body 7.

[0047] In this exemplary embodiment, the cable fixing member 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 circumference of the climbing frame body 7, and the extension direction of the connecting rod 811 intersects with the extension direction of the climbing frame body 7; the first fixing portion 812 is fixed to the second end of the connecting rod 811; and 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 can be used to fix the cable, and the detachable connection of the first fixing portion 812 and the second fixing portion 813 can 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 pull the distance between the fixing portion and the climbing frame body 7. Multiple groups of fixing portions in the same cable fixing member group 8 can be distributed on a larger circumference. This arrangement can facilitate the arrangement of more cable fixing members 81 around the climbing frame body 7.

[0048] In this exemplary embodiment, the first fixed portion 812 includes: a first arc-shaped portion 8121 and two first straight portions 8122, the arc-shaped end surface of the first arc-shaped portion 8121 is fixed to the second end of the connecting rod 811; the two first straight portions 8122 are connected to the opposite ends of the first arc-shaped portion 8121; the second fixed portion 813 includes: a second arc-shaped portion 8131 and two second straight portions 8132; the two second straight portions 8132 are connected to the 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, a first straight portion 8122 and a 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 first straight portions 8122 and second straight portions 8132 arranged opposite to each other are detachably connected. The annular structure formed by splicing the first arc portion 8121 and the second arc portion 8131 can facilitate fixing of the cylindrical cable, and the first straight portion 8122 and the second straight portion 8132 can be detachably connected by bolts or the like. Specifically, the bolt connecting the first straight portion 8122 and the second straight portion 8132 may include a bolt head 111, a threaded rod 113, and a stop tail 112, the threaded rod 113 is connected between the bolt head 111 and the stop tail 112, the threaded rod 113 passes through the first straight portion 8122 and the second straight portion 8132, the nut 114 is sleeved on the threaded rod 113 passing through the first straight portion 8122 and the second straight portion 8132, and the nut 114 is stop tail 112 and the first straight portion 8122, the second straight portion 8132. The stop tail 112 can be welded or bonded to the threaded rod after the nut is sleeved on the threaded rod. This arrangement can not only realize the separation and closing of the first fixing portion 812 and the second fixing portion 813 , but also prevent the first fixing portion 812 and the second fixing portion 813 from completely falling off and injuring people or objects.

[0049] Those skilled in the art will readily appreciate other embodiments of the present disclosure after considering the specification and practicing what is disclosed herein. This application is intended to cover any variations, uses, or adaptations of the present disclosure that follow the general principles of the present disclosure and include common knowledge or customary technical means in the art that are not disclosed in the present disclosure. The specification and embodiments are to be considered merely as exemplary, and the true scope and spirit of the present disclosure are indicated by the claims.

[0050] It should be understood that the present disclosure is not limited to the exact structures that have been described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only 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).

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 extension direction of the connecting rod (811) intersects with the extension 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 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); The reinforcing secondary ribs (54) and the reinforcing primary ribs (53) form a grid structure.

8. The offshore photovoltaic submarine cable laying system according to claim 7, characterized in that: 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 of the first supporting platform (521) facing the bridge frame (9) is arranged opposite to the bridge frame (9) in the first direction (X).

9. The offshore photovoltaic submarine cable laying system according to claim 8, characterized in that: 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 to 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.

10. 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).

Images