Photovoltaic mooring device on water surface

Abstract

The application discloses a water surface photovoltaic mooring device, which comprises a plurality of mooring units; two ends of each mooring unit are arranged on opposite side walls of a reservoir, and the plurality of mooring units form a plurality of containing areas arranged in an array on the water surface; a photovoltaic unit is arranged in each containing area, and the photovoltaic unit is flexibly connected with the mooring units forming the containing area; each mooring unit comprises one mooring piece and two adjustable lifting modules; one end of each adjustable lifting module is arranged on the side wall of the reservoir and is higher than a preset water level, and the other end is connected with the mooring piece located on the water surface. In the water surface photovoltaic mooring device, the adjustable lifting modules are arranged, so that the device can adapt to large changes in the water level of a pumped storage power station reservoir; in addition, the mooring units of the application are located above the water surface, so that the corrosion of the water body on the mooring units is effectively reduced, and the possibility of blockage of the mooring units is reduced.

Description

Technical Field

[0001] This invention discloses a water surface photovoltaic mooring device, belonging to the field of floating structure mooring technology. Background Technology

[0002] Photovoltaics is short for solar photovoltaic power system, a new type of power generation system that uses the photovoltaic effect of solar cell semiconductor materials to directly convert solar radiation energy into electrical energy. Floating photovoltaic systems, also known as water surface photovoltaic systems, refer to systems that establish photovoltaic power stations on water bodies such as ponds, rivers, lakes, reservoirs, and water storage ponds.

[0003] Existing surface photovoltaic systems installed in pumped storage power stations typically employ mooring methods such as arranging sliding rails on the reservoir sidewalls or installing mooring cables below the water surface to secure the photovoltaic panels, as the water level in the pumped storage power station reservoir changes significantly.

[0004] However, in existing mooring methods, both the rails and mooring cables need to be immersed in water for a long time, which can lead to problems such as equipment corrosion and mechanical jamming. This can cause the water surface photovoltaic system to tilt, further resulting in problems such as the extrusion and splitting of photovoltaic modules, reducing the service life of the water surface photovoltaic system and increasing operation and maintenance costs. Summary of the Invention

[0005] The purpose of this application is to provide a surface photovoltaic mooring device to solve the technical problems of equipment corrosion and mechanism jamming in existing surface photovoltaic mooring devices.

[0006] This invention provides a surface photovoltaic mooring device, comprising multiple mooring units;

[0007] Each mooring unit is set at both ends on opposite side walls of the reservoir, and multiple mooring units form an array of multiple containment areas on the water surface.

[0008] Each containment area is equipped with a photovoltaic unit, which is flexibly connected to the mooring units that make up the containment area.

[0009] Each mooring unit includes a mooring component and two adjustable lifting modules; one end of each adjustable lifting module is located on the side wall of the reservoir and above a preset water level, and the other end is connected to the mooring component located on the water surface.

[0010] Preferably, each of the adjustable lifting modules includes a first link and a second link;

[0011] One end of the first connecting rod is rotatably connected to a first position on the side wall of the reservoir, and the other end is rotatably connected to one end of the second connecting rod;

[0012] The other end of the second link is connected to the mooring component.

[0013] Preferably, each of the adjustable lifting modules further includes a third link;

[0014] One end of the third link is rotatably connected to the second position of the reservoir sidewall, and the other end is slidably connected to the body of the second link;

[0015] The second position is a preset distance lower than the first position.

[0016] Preferably, it also includes multiple fasteners;

[0017] Each of the aforementioned anchors is located at the intersection of two adjacent mooring units that make up the accommodating area.

[0018] Preferably, each photovoltaic unit includes a photovoltaic panel and at least two cables;

[0019] One end of each cable is connected to the fixing device, and the other end is connected to the corner of the photovoltaic panel;

[0020] The two cables are respectively installed at two opposite corners of the photovoltaic panel.

[0021] Preferably, each photovoltaic unit further includes a flexible shading module;

[0022] The flexible shielding module is disposed between the photovoltaic panel and the mooring unit that makes up the containment area.

[0023] Preferably, the flexible shielding module includes one or more of a float plate, a float ball, or a float cylinder.

[0024] Preferably, the mooring element is a steel strand.

[0025] Preferably, the retainer is a retainer with a U-shaped groove.

[0026] The water surface photovoltaic mooring device of the present invention has the following advantages compared with the prior art:

[0027] The water surface photovoltaic mooring device of the present invention is equipped with an adjustable lifting module, which can adapt to large changes in the water level of the pumped storage power station reservoir. At the same time, since the mooring unit of the present invention is located above the water surface, it effectively reduces the corrosion of the mooring unit by the water and reduces the possibility of the mooring unit getting stuck. This avoids the problem of the photovoltaic module being squeezed or splitting due to tilting of the water surface photovoltaic, thus improving the service life of the water surface photovoltaic and reducing the operation and maintenance costs. Attached Figure Description

[0028] Figure 1This is a schematic diagram of the layout of a surface photovoltaic system using the surface photovoltaic mooring device of the present invention;

[0029] Figure 2 This is a schematic diagram of the arrangement of photovoltaic units in an embodiment of the present invention;

[0030] Figure 3 This is a schematic diagram of the structure of the water surface photovoltaic mooring device in an embodiment of the present invention.

[0031] In the diagram, 1 is the mooring unit; 11 is the mooring component; 12 is the adjustable lifting module; 121 is the first link; 122 is the second link; 123 is the third link; 2 is the side wall; 3 is the housing area; 4 is the photovoltaic unit; 41 is the photovoltaic panel; 42 is the cable; 43 is the flexible shielding module; 5 is the support; 6 is the kinematic pair; and 7 is the fixing device. Detailed Implementation

[0032] In the following description, specific details such as particular system architectures and techniques are set forth for illustrative purposes and not for limitation, in order to provide a thorough understanding of the embodiments of the invention. However, those skilled in the art will understand that the invention can be implemented in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, apparatuses, circuits, and methods are omitted so as not to obscure the description of the invention with unnecessary detail.

[0033] This invention provides a surface photovoltaic mooring device, such as... Figure 1-3 As shown, it includes multiple sets of mooring units 1;

[0034] Each mooring unit 1 is set at both ends on the opposite sidewalls 2 of the reservoir, and multiple mooring units 1 form multiple containment areas 3 arranged in an array on the water surface;

[0035] Each containment area 3 is equipped with a photovoltaic unit 4, which is flexibly connected to the mooring unit 1 that makes up the containment area 3;

[0036] Each mooring unit 1 includes one mooring element 11 and two adjustable lifting modules 12; one end of each adjustable lifting module 12 is set on the side wall 2 of the reservoir and is higher than the preset water level, and the other end is connected to the mooring element 11 located on the water surface. During installation and connection, a certain tension needs to be applied to the mooring element 11 to ensure its strength.

[0037] In this embodiment of the invention, the preset water level can be the highest designed water level of the reservoir or a water level at a preset distance below the highest designed water level, as long as the mooring unit 1 is not immersed in water for a long time.

[0038] The water surface photovoltaic mooring device of the present invention is equipped with an adjustable lifting module 12, which can adapt to large changes in the water level of the pumped storage power station reservoir. At the same time, since the mooring unit 1 of the present invention is located above the water surface, it effectively reduces the corrosion of the mooring unit 1 by the water and reduces the possibility of the mooring unit 1 getting stuck. This avoids the problem of the photovoltaic module being squeezed or split due to tilting of the water surface photovoltaic, improves the service life of the water surface photovoltaic and reduces the operation and maintenance costs.

[0039] In this embodiment of the invention, each containment area 3 may be provided with one photovoltaic unit 4 or multiple photovoltaic units 4. Since providing only one photovoltaic unit 4 in each containment area 3 can effectively reduce the risk of collision between adjacent photovoltaic units caused by water surface fluctuations, this embodiment of the invention preferably provides one photovoltaic unit 4 in one containment area 3.

[0040] The structure of each adjustable lifting module 12 in this embodiment of the invention is as follows: Figure 3 As shown, Figure 3 The image shows the position of each adjustable lifting module 12 at different water levels, where the double-dotted line represents the first position, the dashed line represents the second position, and the solid line represents the third position.

[0041] Each adjustable lifting module 12 in this embodiment of the invention includes a first connecting rod 121 and a second connecting rod 122;

[0042] One end of the first connecting rod 121 is rotatably connected to the first position of the reservoir sidewall 2, and the other end is rotatably connected to one end of the second connecting rod 122.

[0043] The other end of the second link 122 is connected to the mooring component 11.

[0044] In this embodiment of the invention, the first position is the top of the reservoir sidewall 2 or a position at a predetermined distance from the top; a support 5 is set at the first position, one end of the first connecting rod 121 is rotatably connected to the support 5, and the other end is rotatably connected to one end of the second connecting rod 122 through a kinematic pair, and then the other end of the second connecting rod 122 is connected to one end of the mooring member 11.

[0045] Furthermore, the rotational connection between the first link 121 and the support 5 is specifically a ratchet rotational connection, and the kinematic pair 6 used when the other end of the first link 121 is connected to one end of the second link 122 is a revolute pair. In this embodiment of the invention, since the first link 121 and the second link 122 are rigid structures, combined with the rotational connection, they can change with the large changes in the water level of the pumped storage power station reservoir, adapting to changes in water level and ensuring that the photovoltaic panels are always installed on the water surface.

[0046] To prevent the first link 121 and the second link 122 from moving in opposite directions (upward or downward) under horizontal wind conditions, which could cause the photovoltaic panel to tilt, be squeezed, or split, a third link 123 is also provided in each adjustable lifting module 12 of the present invention.

[0047] One end of the third link 123 is rotatably connected to the second position of the reservoir sidewall 2, and the other end is slidably connected to the body of the second link 122;

[0048] The second position is lower than the preset distance of the first position.

[0049] The connection between the third link 123 and the second link 122 is specifically achieved by using a kinematic pair, which is a rotary kinematic pair that can slide on the second link 122.

[0050] As the water level in the reservoir changes, the second link 122 moves up or down, causing the first link 121 and the third link 123 to move accordingly through the kinematic pair, thus ensuring that the photovoltaic panel is always on the water surface.

[0051] To ensure the strength of the mooring unit 1, the first link 121 and the third link 123 are not limited to one link, but can also be composed of two or three mechanical links arranged in parallel.

[0052] In this embodiment of the invention, the third link 123 is used to limit the second link 122, thereby balancing the forces on the adjustable lifting modules 12 at both ends, improving the stability of the water surface photovoltaic system, and preventing the photovoltaic panels from tilting, being squeezed, or splitting due to changes in the distance between the adjustable lifting modules 12 at both ends under horizontal wind conditions.

[0053] The water surface photovoltaic mooring device of the present invention adopts a fully mechanical structure, which can keep the mooring component 11 tensioned according to the rise and fall of the water level. It has a simple structure and does not require electrical control assistance.

[0054] To make the overall structure of the water surface photovoltaic mooring device more stable, the embodiments of the present invention also include multiple fixing devices 7;

[0055] Each anchor 7 is located at the intersection of two adjacent mooring units 1 that make up the accommodating area 3.

[0056] The slot of the fixer 7 in this embodiment of the invention can be U-shaped or semi-circular, etc., and the present invention preferably uses a U-shaped fixer.

[0057] For example, a retainer with a U-shaped slot is fixed to the longitudinal mooring member 11, thereby allowing the transverse mooring member 11 to pass through the U-shaped slot and be fixed to the longitudinal mooring member 11.

[0058] The mooring component 11 can be a cable, specifically a steel strand.

[0059] The present invention uses a fastener 7 to fix the intersecting mooring parts 11 in two adjacent mooring units 1 together, so that the mooring units 1 form a whole and are more stable.

[0060] In this embodiment of the invention, each photovoltaic unit 4 includes a photovoltaic panel 41 and at least two cables 42;

[0061] One end of each cable 42 is connected to the fixing device 7, and the other end is connected to the corner of the photovoltaic panel 41;

[0062] Two cables 42 are respectively set at two opposite corners of the photovoltaic panel 41.

[0063] The cable 42 can also be directly connected to one of the mooring components 11 at the intersection.

[0064] The present invention utilizes cables 42 to achieve flexible connection of photovoltaic panels 41, avoiding damage to photovoltaic panels 41. At the same time, the present invention provides cables 42 at two opposite corners of photovoltaic panels 41, thereby achieving the best fixing effect with the fewest cables 42.

[0065] The aforementioned cable 42 can also be used in 3 or 4 strands, with 4 strands providing the best securing effect.

[0066] The multiple mooring units 1 of the present invention form multiple receiving areas 3 arranged in an array on the water surface. Each receiving area 3 is equipped with a photovoltaic panel 41. The photovoltaic panel 41 is connected to the boundary of the receiving area 3 by a cable 42, thereby making the overall structure more stable.

[0067] To minimize water evaporation from the reservoir and improve the efficiency of the pumped storage power station, each photovoltaic unit 4 of the present invention also includes a flexible shading module 43;

[0068] A flexible shading module 43 is disposed between the photovoltaic panel 41 and the mooring unit 1 constituting the receiving area 3, preferably surrounding the photovoltaic panel 41. The flexible shading module 43 includes one or more of a float, a buoy, or a float cylinder.

[0069] By arranging tensioned mooring components 11 and flexible shading modules 43 around each photovoltaic unit 4, the photovoltaic units 4 can cover the entire reservoir surface, improving the utilization rate of the reservoir surface area and the power generation efficiency of the photovoltaic panels 41.

[0070] This invention proposes a water surface photovoltaic mooring device suitable for pumped storage power station reservoirs, which can adapt to large changes in reservoir water level, effectively improve the utilization rate of reservoir water surface area, reduce reservoir evaporation, ensure the stability of the water surface photovoltaic panel array 41, and reduce equipment corrosion rate.

[0071] The above description is merely a few embodiments of this application and is not intended to limit this application in any way. Although this application discloses preferred embodiments as described above, it is not intended to limit this application. Any changes or modifications made by those skilled in the art without departing from the scope of the technical solution of this application using the disclosed technical content are equivalent to equivalent implementation cases and fall within the scope of the technical solution.

Claims

1. A surface photovoltaic mooring device, characterized in that, Includes multiple mooring units; Each mooring unit is set at both ends on opposite side walls of the reservoir, and multiple mooring units form an array of multiple containment areas on the water surface. Each containment area is equipped with a photovoltaic unit, which is flexibly connected to the mooring units that make up the containment area. Each mooring unit includes a mooring component and two adjustable lifting modules; one end of each adjustable lifting module is located on the side wall of the reservoir and above the preset water level, and the other end is connected to the mooring component located on the water surface. Each of the adjustable lifting modules includes a first link and a second link; One end of the first connecting rod is rotatably connected to a first position on the side wall of the reservoir, and the other end is rotatably connected to one end of the second connecting rod; The other end of the second link is connected to the mooring component; Each of the adjustable lifting modules also includes a third link; One end of the third link is rotatably connected to the second position of the reservoir sidewall, and the other end is slidably connected to the body of the second link; The second position is a preset distance lower than the first position.

2. The water surface photovoltaic mooring device according to claim 1, characterized in that, It also includes multiple fasteners; Each of the aforementioned anchors is located at the intersection of two adjacent mooring units that make up the accommodating area.

3. The water surface photovoltaic mooring device according to claim 2, characterized in that, Each of the photovoltaic units includes a photovoltaic panel and at least two cables; One end of each cable is connected to the fixing device, and the other end is connected to the corner of the photovoltaic panel; The two cables are respectively installed at two opposite corners of the photovoltaic panel.

4. The water surface photovoltaic mooring device according to claim 3, characterized in that, Each of the photovoltaic units also includes a flexible shading module; The flexible shielding module is disposed between the photovoltaic panel and the mooring unit that makes up the containment area.

5. The water surface photovoltaic mooring device according to claim 4, characterized in that, The flexible shielding module includes one or more of a float plate, a buoy, or a buoy cylinder.

6. The water surface photovoltaic mooring device according to claim 1, characterized in that, The mooring element is a steel strand.

7. The water surface photovoltaic mooring device according to claim 2, characterized in that, The fixture is a fixture with a U-shaped groove.

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