Floating photovoltaic cable carrier capable of automatically lifting along with water level

Abstract

The utility model belongs to the technical field of photovoltaic power generation, and discloses a floating photovoltaic cable carrier capable of automatically lifting along with the water level, which comprises a floating carrier, a cable limiting piece is arranged at the top of the floating carrier, and a floating limiting piece is arranged on the side surface of the floating carrier; the positioning rod is movably connected with the floating limiting piece and penetrates through the floating limiting piece, the bottom of the positioning rod is fixed in underwater soil, the top of the positioning rod is suspended, and the floating carrier can move up and down along the positioning rod. According to the utility model, the photovoltaic cable can be supported to float on the water surface, the photovoltaic cable is prevented from being immersed into water to be damaged, the service life of the photovoltaic cable on the water surface is prolonged while the normal work of equipment is not influenced, the potential safety hazard is reduced, and the practical performance is relatively strong.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaic power generation, in particular to a floating photovoltaic cable carrier which can automatically rise and fall following the water level. Background Art

[0002] With the development of renewable energy and the enhancement of environmental awareness, the use of renewable energy has received more and more attention. As a clean, renewable and widely distributed clean energy, solar energy has broad development prospects and application potential, and the current mainstream technology of solar power generation is photovoltaic power generation.

[0003] Traditional photovoltaic power generation is to build photovoltaic power stations on land, but the construction of such photovoltaic power stations will occupy a large amount of agricultural land, hindering the development of the photovoltaic industry, so water surface photovoltaic power generation technology came into being. Compared with traditional land photovoltaic power generation, water surface photovoltaic power stations have the advantages of not occupying land resources and can be combined with other facilities (such as waterway facilities and aquaculture), which can further increase economic output value.

[0004] Although water-based photovoltaic power stations have many advantages, they still have some drawbacks. For example, photovoltaic cables are easily soaked when they pass through the waters between floating photovoltaic strings and land-based phase change platforms. Long-term soaking can cause damage to photovoltaic cables, which not only affects the normal operation of the equipment, but also poses certain safety risks. Utility Model Content

[0005] The utility model aims to provide a floating photovoltaic cable carrier which can automatically rise and fall with the water level, which can prevent the photovoltaic cable from being damaged by being immersed in water, ensures the safety of the cable, prolongs the service life of the cable, and has strong practicality.

[0006] The technical solution adopted to achieve the purpose of this utility model is:

[0007] A floating photovoltaic cable carrier which can automatically rise and fall following the water level comprises a floating carrier for placing photovoltaic cables, wherein the top of the floating carrier is provided with a cable limiter, and the side of the floating carrier is provided with a floating limiter.

[0008] Furthermore, it also includes a positioning rod movably connected to the floating limiter, the positioning rod passes through the floating limiter, and the bottom of the positioning rod is fixed in the underwater soil and the top is suspended in the air; the floating carrier can move up and down along the positioning rod.

[0009] Furthermore, the floating carrier is a rectangular parallelepiped structure as a whole, and includes a rectangular parallelepiped foam board and a frame arranged on the edges of the foam board.

[0010] Furthermore, the cable limiting member is a limiting plate or a limiting frame fixed on the two long sides of the top of the frame.

[0011] Furthermore, the floating limiter is a clamping ring structure fixed on the two short sides of the top of the frame.

[0012] Furthermore, the clamping ring structure is a rectangular clamping ring, a U-shaped clamping ring, a circular clamping ring or a polygonal clamping ring; the positioning rod passes through the center hole of the clamping ring structure, and the area of ​​the center hole is larger than the cross-sectional area of ​​the positioning rod; after the positioning rod is inserted into the center hole of the clamping ring structure, a gap is left between the positioning rod and the wall of the center hole to ensure that the floating limiter can slide on the positioning rod.

[0013] Furthermore, the frame of the floating carrier is welded by angle steels.

[0014] The beneficial effects of the utility model are:

[0015] 1. The device of the utility model can hold up the photovoltaic cable and float it on the water surface to prevent the photovoltaic cable from being immersed in water and damaged. While not affecting the normal operation of the equipment, it prolongs the life of the surface photovoltaic cable and reduces safety hazards.

[0016] 2. The utility model sets a floating limiter and a positioning rod to prevent the floating carrier from drifting around due to wind or waves, and can also ensure that the floating carrier can automatically rise and fall with the rise and fall of the water level. It has good adaptability and stability and strong practical performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the utility model will be further described below in conjunction with the accompanying drawings and embodiments. The drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work:

[0018] Figure 1 It is a schematic diagram of the utility model as a whole.

[0019] Figure 2 It is a schematic diagram of placing photovoltaic cables of the utility model.

[0020] Figure 3 It is a schematic diagram of the position relationship of two floating carriers spliced ​​together in the utility model.

[0021] Figure 4 yes Figure 3 An enlarged schematic diagram of point A in the middle.

[0022] In the figure: 1. Photovoltaic cable; 2. Floating carrier; 3. Cable limiter; 4. Floating limiter; 5. Positioning rod; 201. Foam board; 202. Frame. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the following will be described clearly and completely in combination with the technical solution in the embodiments of the utility model. Obviously, the described embodiments are partial embodiments of the utility model, not all embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the protection scope of the utility model.

[0024] like Figures 1 to 4 As shown, a floating photovoltaic cable carrier that can automatically rise and fall with the water level includes a floating carrier 2 for placing a photovoltaic cable 1, and a cable limiter 3 is provided on the top of the floating carrier 2, and a floating limiter 4 is provided on the side.

[0025] The utility model further comprises a positioning rod 5 movably connected to the floating limiting member 4 , the positioning rod 5 penetrates the floating limiting member 4 , and the bottom of the positioning rod 5 is fixed in the underwater soil, and the top is suspended; the floating carrier 2 can move up and down along the positioning rod 5 .

[0026] When the device is in use, the floating carrier 2 is placed on the water surface, and the photovoltaic cable 1 is placed on the top of the floating carrier 2. Since the density of the floating carrier 2 is less than the density of water, the floating carrier 2 can hold up the photovoltaic cable 1 and float on the water surface to prevent the photovoltaic cable 1 from being immersed in water and damaged, thereby ensuring the safety of the cable, and extending the life of the surface photovoltaic cable 1 without affecting the normal operation of the equipment, and reducing safety hazards, which is highly practical.

[0027] The main material of the floating carrier 2 is foam. In the actual processing, foam with a certain thickness should be selected to form a larger buoyancy to support the photovoltaic cable 1, and the size of the floating carrier 2 can be determined according to the actual use. In actual setting, corresponding wooden piles, fixed frames or other fixed structures can be set in the water, and then the floating limiter 4 can be connected to the corresponding fixed structure.

[0028] The cable stopper 3 is a stopper for the photovoltaic cable 1 arranged on the top of the floating carrier 2, and the number of the stopper 3 is more than two, and at least two cable stoppers 3 are ensured to be located on both sides of the photovoltaic cable 1. In this way, the photovoltaic cable 1 can be placed between the two cable stoppers 3 to prevent the photovoltaic cable 1 from swinging and falling into the water.

[0029] The floating stopper 4 is mainly used to fix the floating carrier 2 at a corresponding position to prevent the floating carrier 2 from moving with the water flow. The utility model sets the floating stopper 4 on the side of the floating carrier 2 to ensure that it does not occupy the top space of the floating carrier 2, avoiding affecting the normal placement of the photovoltaic cable 1.

[0030] like Figure 2As shown, the floating stopper 4 and the positioning rod 5 are movably connected in a sliding connection, which can be specifically in the form of a slide rail and a slider, or in the form of a rod and a ring, or in other sliding ways. The utility model is provided with a floating stopper 4 to prevent the floating carrier 2 from floating around due to wind or waves, and the floating stopper 4 and the positioning rod 5 are movably connected to ensure that the floating carrier 2 can automatically rise and fall with the rise and fall of the water level. The positioning rod 5 of the utility model should have a strong anti-deformation ability, and can be replaced by materials of different materials in actual use, and the length of the positioning rod 5 should be determined according to the depth of the water area in which it is used.

[0031] like Figures 1 to 3 As shown, the floating carrier 2 is a rectangular parallelepiped structure as a whole, and includes a rectangular parallelepiped foam board 201 and a frame 202 arranged on the edges of the foam board 201 .

[0032] When placing the photovoltaic cable 1, the photovoltaic cable 1 should be placed along the direction of the long side of the top of the floating carrier 2 to increase the contact area between the photovoltaic cable 1 and the floating carrier 2, and to support most of the photovoltaic cable 1 as much as possible to prevent it from being immersed in water.

[0033] The foam board 201 in the utility model is a foam with a certain thickness, and the frame 202 is welded by angle steel, which can protect the foam board and increase its impact resistance. When assembling the floating carrier 2, the six foam boards 201 can be cut into a rectangular structure first, and then the angle steel can be installed on the corresponding edges. The installation order of the angle steel can be habitually installed according to the actual situation, and the installation order can refer to the following order: first install the angle steel on the four long edges of the floating carrier 2, then install the four wide edges, and finally install the four high edges.

[0034] like Figures 1 to 3 As shown, the cable limiting member 3 is a limiting plate or a limiting frame fixed on the two long sides of the top of the frame 202 .

[0035] The cable stopper 3 of the utility model is a stopper plate or a stopper frame fixed on the two long sides of the top of the frame 202, and the number of the cable stopper 3 on each long side frame at the top of the frame 202 is more than one. Although the stopper plate can play a limiting role, it is not convenient for carrying. Therefore, in a preferred embodiment of the utility model, the cable stopper 3 is a rectangular stopper frame fixed on the two long sides of the top of the frame 202, and the number of the cable stopper 3 on each long side frame 202 at the top of the frame 202 is one, and they are all set in the middle of the long side of the top of the frame 202. The cable stopper 3 is a rectangular stopper frame, which can not only play a limiting role, but also serve as a hand fulcrum when carrying the floating carrier 2, so as to facilitate the carrying of the floating carrier 2.

[0036] In actual design, the height of the cable stopper 3 at the top of the frame 202 of this embodiment is higher than the height of the central axis of the photovoltaic cable 1. The top rectangular stopper should be set with a longer span to better limit the lateral movement of the cable and prevent the cable from falling into the water. In this embodiment, the length of the cable stopper 3 along the long side of the top of the frame 202 is preferably more than half of the length of the long side of the frame 202.

[0037] like Figures 1 to 4 As shown, in the present invention, the floating stopper 4 is a snap ring structure fixed on the two short sides of the top of the frame 202. Specifically, the floating stopper 4 is a rectangular snap ring, a U-shaped snap ring, a circular snap ring or a polygonal snap ring; the positioning rod 5 passes through the center hole of the floating stopper 4, and the area of ​​the center hole is larger than the cross-sectional area of ​​the positioning rod 5; after the positioning rod 5 is inserted into the center hole of the floating stopper 4, a gap is left between the positioning rod 5 and the center hole wall to ensure that the floating stopper 4 can slide on the positioning rod 5. In a preferred embodiment of the present invention, the floating stopper 4 is a rectangular snap ring for ease of processing.

[0038] The floating stopper 4 is designed as a clamping ring structure, and the left and right ends of the two floating carriers 2 can be connected through the clamping ring structure when needed. Specifically, by setting the floating stopper 4 in the above manner, a single floating carrier 2 can be spliced ​​into floating bodies of different lengths according to actual use requirements, such as Figure 3 When splicing, the two floating stoppers 4 on the short sides of the top of the frame 202 of the adjacent floating carrier 2 can be fastened by using ropes or other fixing devices. During the fastening process, the splicing part can be fixed by wire or rope according to the use requirements, and the positioning rod 5 can be omitted at the splicing part.

[0039] In order to prevent the photovoltaic cable 1 from swinging left and right on the floating carrier 2, during actual installation, the photovoltaic cable 1 can be directly fixed to the floating limiter 4 with ropes (the corresponding ropes are not drawn in the figure).

[0040] In order to further prevent the floating carrier 2 from moving, the area of ​​the center hole of the clamping ring structure can be increased during design, so that the positioning rod 5 can still be used for limiting during splicing. However, this method is not convenient for placing the photovoltaic cable 1. Therefore, in another embodiment of the utility model, while the floating limiting member 4 is set on the side of the two short sides of the top of the frame 202, the floating limiting member 4 is also set on the side of the two long sides of the top of the frame 202 (that is, the floating limiting member 4 is set on the side of the long side and the short side of the top frame 202). In this way, when multiple floating carriers 2 are spliced, the positioning rod 5 can be used for limiting at the splicing point, and other floating limiting members 4 can cooperate with the positioning rod 5.

[0041] The specific implementation methods described above further illustrate the purpose, technical solutions and beneficial effects of the utility model in detail. It should be understood that the above description is only a specific implementation method of the utility model and is not intended to limit the utility model. Any modifications, equivalent substitutions and improvements made within the scope of the utility model should be included in the protection scope of the utility model.

Claims

1. A floating photovoltaic cable carrier that can automatically rise and fall with the water level, characterized in that: It comprises a floating carrier (2) for placing a photovoltaic cable (1), wherein the top of the floating carrier (2) is provided with a cable stopper (3), and the side thereof is provided with a floating stopper (4).

2. The floating photovoltaic cable carrier capable of automatically rising and falling following the water level according to claim 1 is characterized in that: It also comprises a positioning rod (5) movably connected to the floating limiting member (4), the positioning rod (5) passing through the floating limiting member (4), and the bottom of the positioning rod (5) is fixed in the soil at the bottom of the water, and the top is suspended in the air; the floating carrier (2) can move up and down along the positioning rod (5).

3. The floating photovoltaic cable carrier capable of automatically rising and falling following the water level according to claim 1 or 2, characterized in that: The floating carrier (2) is a rectangular parallelepiped structure as a whole, and comprises a rectangular parallelepiped foam board (201) and a frame (202) arranged on the edges of the foam board (201).

4. The floating photovoltaic cable carrier capable of automatically rising and falling following the water level according to claim 3 is characterized in that: The cable limiting member (3) is a limiting plate or a limiting frame fixed on the two long sides of the top of the frame (202).

5. The floating photovoltaic cable carrier capable of automatically rising and falling following the water level according to claim 3 is characterized in that: The floating limiting member (4) is a clamping ring structure fixed on the two short side surfaces of the top of the frame (202).

6. The floating photovoltaic cable carrier capable of automatically rising and falling following the water level according to claim 4 is characterized in that: The floating limiting member (4) is a clamping ring structure fixed on the two short side surfaces of the top of the frame (202).

7. The floating photovoltaic cable carrier capable of automatically rising and falling following the water level according to claim 5 or 6, characterized in that: The clamping ring structure is a rectangular clamping ring, a U-shaped clamping ring, a circular clamping ring or a polygonal clamping ring; the positioning rod (5) passes through the center hole of the clamping ring structure, and the area of ​​the center hole is larger than the cross-sectional area of ​​the positioning rod (5); after the positioning rod (5) is inserted into the center hole of the clamping ring structure, a gap is left between the positioning rod (5) and the wall of the center hole to ensure that the floating limiter (4) can slide on the positioning rod (5).

8. The floating photovoltaic cable carrier capable of automatically rising and falling following the water level according to claim 1, 2, 4, 5 or 6, characterized in that: The frame (202) of the floating carrier (2) is welded from angle steels.

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