A floating body connection device for offshore photovoltaic systems

Abstract

The utility model provides a kind of floating body connecting device for offshore photovoltaic system, including multiple connecting mechanisms, connecting mechanism is connected between two adjacent floating bodies in offshore photovoltaic system, connecting mechanism includes outer layer flexible sleeve, and outer layer flexible sleeve is fixedly connected with floating body, at least one connecting main body is provided in outer layer flexible sleeve, connecting main body includes center metal wire and middle layer flexible sleeve, which is sleeved on center metal wire, center metal wire and middle layer flexible sleeve are fixedly connected with floating body, distance is left between center metal wire and middle layer flexible sleeve and forms filling cavity, and the state of connecting main body can be adjusted according to the wind and wave state of sea surface by inputting filling medium into filling cavity, ensure the connection state of adjacent two floating bodies stable, while avoiding the collision of floating body when the wind and wave state of sea surface is strong, realize the protection of photovoltaic module carried by floating body.

Description

Technical Field

[0001] This utility model relates to the field of marine photovoltaic technology, specifically a floating body connection device for a marine photovoltaic system. Background Technology

[0002] Offshore photovoltaics refers to photovoltaic power generation systems installed in ocean or coastal waters. Utilizing marine space resources to produce clean energy, it has become an important direction for global energy transition. It boasts advantages such as high power generation efficiency and land conservation, and is widely used in innovative models such as fishery-solar integration and wind-solar co-location.

[0003] In offshore photovoltaic systems, photovoltaic modules are mainly supported by floating bodies. Because these floating bodies drift on the sea surface, they need to be able to move with the waves. Currently, the conventional connection method between floating bodies is mainly a combination of ball joints and connecting rods. That is, a ball joint is installed on each of two adjacent floating bodies, and the two ball joints are connected by a connecting rod, so that the two floating bodies can move flexibly relative to each other.

[0004] The main problem with the above combination of ball joint and connecting rod is that the ball joint has a limited range of motion, which leads to a limited range of relative motion between the two floats, and the ball joint is prone to jamming when impurities in the seawater enter it. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a floating body connection device for marine photovoltaic systems. This device can adjust the state of the connection body according to the wind and wave conditions on the sea surface, ensuring a stable connection between two adjacent floating bodies while preventing collisions between the floating bodies when the wind and waves are strong, thus protecting the photovoltaic modules carried on the floating bodies.

[0006] To achieve the above objectives, the specific solution adopted by this utility model is as follows:

[0007] A floating body connection device for a marine photovoltaic system includes multiple connection mechanisms. These mechanisms connect two adjacent floating bodies within the marine photovoltaic system. Each connection mechanism includes an outer flexible sleeve, which is fixedly connected to the floating body. At least one connecting body is disposed within the outer flexible sleeve. Each connecting body includes a central metal wire and a middle flexible sleeve sleeved on the central metal wire. Both the central metal wire and the middle flexible sleeve are fixedly connected to the floating body. A gap is left between the central metal wire and the middle flexible sleeve to form a filling cavity. The connecting body can be reinforced by introducing a filling medium into the filling cavity.

[0008] Preferably, an inner flexible sleeve is provided between the central metal wire and the middle flexible sleeve, a distance is left between the inner flexible sleeve and the central metal wire to form a first cavity, and a distance is left between the inner flexible sleeve and the middle flexible sleeve to form a second cavity, the first cavity and the second cavity together constitute the filling cavity.

[0009] Preferably, the filling medium includes a gaseous medium and a liquid medium, the gaseous medium filling the first cavity, the liquid medium filling the second cavity, and the liquid medium being able to be extracted from the second cavity.

[0010] Preferably, a buffer space is formed between the middle flexible sleeve and the outer flexible sleeve.

[0011] Preferably, the connecting mechanism includes two annular mounting seats, which are fixedly mounted on two adjacent floats. The outer flexible sleeve is fixedly connected to the mounting seats, and a connecting block is fixedly connected to each end of the central metal wire. The connecting blocks are fixedly connected to the floats.

[0012] Preferably, each end of the middle flexible sleeve is closed by an annular end plate. The end plate is sleeved on the connecting block and located inside the mounting base. At least one bidirectional water pump is installed on the end plate and is connected to the interior of the float.

[0013] Preferably, when there are at least two bidirectional pumps, all the bidirectional pumps connected to the same float are connected to an inlet and outlet pipe, with the inlet end of the inlet and outlet pipe close to the bottom of the inner cavity of the float.

[0014] Preferably, the inlet end of the inlet pipe is provided with an inclined cut, the cut facing the middle of the float, and a filter screen is fixedly installed in the cut.

[0015] Preferably, the outer flexible sleeve is provided with three connecting bodies, and the extension direction of the central metal wire in the three connecting bodies is different.

[0016] This invention can adjust the state of the connecting body according to the sea conditions, ensuring the stability of the connection between two adjacent floats while avoiding collisions between floats in strong sea conditions, thus protecting the photovoltaic modules carried on the floats. Compared with the traditional connection method using a combination of ball joints and connecting rods, this invention uses a central metal wire as the core of the connecting body, which is more flexible and less prone to jamming due to impurities, thereby avoiding damage due to the movement of the floats. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram illustrating the arrangement of the connecting mechanism;

[0019] Figure 2 This is a structural diagram of the connecting main body;

[0020] Figure 3 This is a schematic diagram of the installation method for the main connecting body;

[0021] Figure 4 This is a diagram showing the connection positions of the three connecting bodies and the floating body in one embodiment;

[0022] Figure 5 This is a schematic diagram of the spatial positions of the three connected entities in one embodiment.

[0023] Reference numerals: 1-Float, 2-Connecting mechanism, 3-Central metal wire, 4-Inner flexible sleeve, 5-Middle flexible sleeve, 6-Outer flexible sleeve, 7-Mounting base, 8-Connecting block, 9-End plate, 10-Bidirectional water pump, 11-Inlet / outlet pipe, 12-Slit, 13-Filter screen. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] like Figures 1 to 3 As shown, a floating body connection device for a marine photovoltaic system includes multiple connection mechanisms 2. The connection mechanisms 2 are connected between two adjacent floating bodies 1 in the marine photovoltaic system. The connection mechanism 2 includes an outer flexible sleeve 6, and the outer flexible sleeve 6 is fixedly connected to the floating body 1. At least one connection body is provided in the outer flexible sleeve 6. The connection body includes a central metal wire 3 and a middle flexible sleeve 5 sleeved on the central metal wire 3. Both the central metal wire 3 and the middle flexible sleeve 5 are fixedly connected to the floating body 1. A distance is left between the central metal wire 3 and the middle flexible sleeve 5 to form a filling cavity. The connection body can be strengthened by introducing a filling medium into the filling cavity.

[0026] In use, this invention connects the connecting mechanism 2 between two adjacent floats 1 in a marine photovoltaic system. Under normal conditions, the central metal wire 3 of the connecting body plays a primary role. Because the connecting metal wire 3 and the middle flexible sleeve 5 can bend and deform, the two adjacent floats 1 can move independently in waves, maintaining the connection without restricting each other. In rough seas, a filling medium is introduced into the filling cavity, filling it completely and fully expanding the middle flexible sleeve 5. This filling medium restricts the movement of the middle flexible sleeve 5 and the central metal wire 3, thereby strengthening the connecting body and enhancing the restriction on the two adjacent floats 1, preventing collisions that could damage the photovoltaic modules. The outer flexible sleeve 6 protects the middle flexible sleeve 5 and the central metal wire 3 from prolonged seawater erosion. In this invention, the central metal wire 3 can be made of steel strand, a conventional material, and will not be described further here.

[0027] This invention can adjust the state of the connecting body according to the wind and wave conditions on the sea surface, ensuring the stable connection between two adjacent floats 1 while avoiding collisions of floats 1 when the wind and waves are strong, thus protecting the photovoltaic modules carried on the floats 1. Compared with the traditional connection method using a combination of ball joints and connecting rods, this invention uses the central metal wire 3 as the core of the connecting body, which is more flexible and less prone to jamming due to the intrusion of impurities, thereby avoiding damage due to the movement of the floats 1.

[0028] Furthermore, an inner flexible sleeve 4 is provided between the central metal wire 3 and the middle flexible sleeve 5. A distance is left between the inner flexible sleeve 4 and the central metal wire 3 to form a first cavity, and a distance is left between the inner flexible sleeve 4 and the middle flexible sleeve 5 to form a second cavity. The first cavity and the second cavity together constitute a filling cavity. The filling medium includes a gaseous medium and a liquid medium. The gaseous medium fills the first cavity, and the liquid medium fills the second cavity, and the liquid medium can be extracted from the second cavity.

[0029] In one embodiment of this invention, air is used as the gaseous medium and seawater as the liquid medium. By providing an inner flexible sleeve 4, the filling cavity can be divided into an independent first cavity and a second cavity, thereby completely isolating the seawater from the central metal wire 3 and preventing seawater from adhering to the central metal wire 3 and causing it to be rapidly corroded. On the other hand, the inner flexible sleeve 4, in conjunction with air, can strengthen the connection to the main body.

[0030] It should be noted that in this utility model, the inner flexible sleeve 4, the middle flexible sleeve 5 and the outer flexible sleeve 6 can all be made of conventional corrosion-resistant rubber material, which is a common material in the field of marine photovoltaics, and will not be described in detail here.

[0031] Furthermore, a buffer space is formed between the middle flexible sleeve 5 and the outer flexible sleeve 6.

[0032] The specific arrangement of the central metal wire 3 and the outer flexible sleeve 6 is as follows: the connecting mechanism 2 includes two annular mounting seats 7, which are fixedly mounted on two adjacent floats 1. The outer flexible sleeve 6 is fixedly connected to the mounting seats 7. Each end of the central metal wire 3 is fixedly connected to a connecting block 8, which is fixedly connected to the float 1.

[0033] To facilitate the filling of the second cavity with a liquid medium, each end of the middle flexible sleeve 5 is closed by an annular end plate 9. The end plate 9 is fitted onto the connecting block 8 and located inside the mounting base 7. At least one bidirectional water pump 10 is installed on the end plate 9, and the bidirectional water pump 10 is connected to the interior of the float 1. In the offshore photovoltaic system, the buoyancy of the float 1 needs to be adjusted by adjusting the amount of seawater inside the float 1. Therefore, the float 1 contains seawater. When the liquid medium is seawater, the bidirectional water pump 10 can conveniently deliver seawater into and extract seawater from the second cavity. The bidirectional water pump 1 is conventional technology and will not be described in detail here.

[0034] To improve the efficiency of seawater intake and exhaust in the second chamber, when there are at least two bidirectional pumps 10, all bidirectional pumps 10 connected to the same float 1 share a common inlet / outlet pipe 11, with the inlet end of the inlet / outlet pipe 11 close to the bottom of the inner cavity of the float 1. By positioning the inlet end of the inlet / outlet pipe 11 close to the bottom of the inner cavity of the float 1, it is easier to transport seawater from the float 1 to the second chamber. It should also be noted that when discharging seawater from the second chamber, seawater should be discharged from the inlet / outlet pipe 11 of the other float 1 only after the inlet / outlet pipe 11 in one float 1 is able to draw in air.

[0035] Furthermore, the inlet end of the inlet pipe 11 is provided with an inclined cut 12, which faces the middle of the float 1, and a filter screen 13 is fixedly installed in the cut 12. By providing the filter screen 13, impurities in the seawater can be filtered out, preventing clogging of the bidirectional water pump 10. By providing the cut 12, the area of ​​the filter screen 13 can be increased, preventing the filter screen 13 from being completely blocked.

[0036] like Figure 4 and Figure 5As shown, in one embodiment of this utility model, the outer flexible sleeve 6 is provided with three connecting bodies, and the extension direction of the central metal wire 3 in the three connecting bodies is different.

[0037] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0038] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A floating body connection device for a marine photovoltaic system, characterized in that, The system includes multiple connecting mechanisms (2), which are connected between two adjacent floating bodies (1) in the marine photovoltaic system. Each connecting mechanism (2) includes an outer flexible sleeve (6) and is fixedly connected to the floating body (1). At least one connecting body is provided in the outer flexible sleeve (6). The connecting body includes a central metal wire (3) and a middle flexible sleeve (5) sleeved on the central metal wire (3). Both the central metal wire (3) and the middle flexible sleeve (5) are fixedly connected to the floating body (1). A gap is left between the central metal wire (3) and the middle flexible sleeve (5) to form a filling cavity. The connecting body can be strengthened by inputting a filling medium into the filling cavity.

2. The floating body connection device for a marine photovoltaic system as described in claim 1, characterized in that, An inner flexible sleeve (4) is provided between the central metal wire (3) and the middle flexible sleeve (5). A distance is left between the inner flexible sleeve (4) and the central metal wire (3) to form a first cavity. A distance is left between the inner flexible sleeve (4) and the middle flexible sleeve (5) to form a second cavity. The first cavity and the second cavity constitute the filling cavity.

3. The floating body connection device for a marine photovoltaic system as described in claim 2, characterized in that, The filling medium includes a gaseous medium and a liquid medium. The gaseous medium fills the first cavity, the liquid medium fills the second cavity, and the liquid medium can be extracted from the second cavity.

4. The floating body connection device for a marine photovoltaic system as described in claim 2, characterized in that, A buffer space is formed between the middle flexible sleeve (5) and the outer flexible sleeve (6).

5. The floating body connection device for a marine photovoltaic system as described in claim 1, characterized in that, The connecting mechanism (2) includes two annular mounting seats (7), which are fixedly mounted on two adjacent floats (1). The outer flexible sleeve (6) is fixedly connected to the mounting seats (7), and a connecting block (8) is fixedly connected to each end of the central metal wire (3). The connecting block (8) is fixedly connected to the float (1).

6. The floating body connection device for a marine photovoltaic system as described in claim 5, characterized in that, The two ends of the middle flexible sleeve (5) are each closed by an annular end plate (9). The end plate (9) is sleeved on the connecting block (8) and located inside the mounting base (7). At least one bidirectional water pump (10) is installed on the end plate (9). The bidirectional water pump (10) is connected to the interior of the float (1).

7. The floating body connection device for a marine photovoltaic system as described in claim 6, characterized in that, When there are at least two bidirectional pumps (10), all the bidirectional pumps (10) connected to the same float (1) are connected to an inlet / outlet pipe (11), the inlet end of which is close to the bottom of the inner cavity of the float (1).

8. The floating body connection device for a marine photovoltaic system as described in claim 7, characterized in that, The inlet end of the inlet pipe (11) is provided with an inclined cut (12), the cut (12) faces the middle of the float (1), and a filter screen (13) is fixedly provided in the cut (12).

9. A floating body connection device for a marine photovoltaic system as described in claim 1, characterized in that, The outer flexible sleeve (6) is provided with three connecting bodies, and the extension direction of the central metal wire (3) in the three connecting bodies is different.

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