CN116461661A - Floating type offshore photovoltaic power generation supporting mechanism - Google Patents

Abstract

The invention relates to the technical field of offshore photovoltaic power generation, in particular to a floating type offshore photovoltaic power generation supporting mechanism, which comprises a floating body floating on the water surface and an anchoring mechanism for anchoring the floating body at a specific position, wherein the floating body is annular, an upper flexible sheet layer and a lower flexible sheet layer which are arranged at intervals up and down are arranged in an annular space surrounded by the floating body, the peripheral sides of the upper flexible sheet layer and the peripheral sides of the lower flexible sheet layer are both connected with the peripheral sides of the floating body, an elastic damping layer is filled between the lower flexible sheet layer and the upper flexible sheet layer, and the peripheral sides of the upper flexible sheet layer, the lower flexible sheet layer and the elastic damping layer are both connected with the floating body; the elastic deformation of the lower elastic sheet layer and the elastic deformation of the elastic damping layer can dissipate wave acting force, the action of waves on the upper flexible sheet is reduced, a supporting frame for supporting a photovoltaic panel is not required to be arranged on the floating body, and the construction and maintenance cost of the floating type offshore photovoltaic power generation supporting mechanism is reduced.

Description

A floating offshore photovoltaic power generation support mechanism

technical field

The invention relates to the technical field of offshore photovoltaic power generation, in particular to a floating offshore photovoltaic power generation support mechanism.

Background technique

With the continuous and rapid growth of global photovoltaic installed capacity, the application of photovoltaics in different scenarios continues to expand, and the industry's attention to photovoltaics entering the sea is increasing. Offshore photovoltaics have the characteristics of high power generation and less land occupation. Under the background of increasingly tense land resources, offshore photovoltaics will have a very promising prospect. However, compared with the environment on land, the offshore environment is more harsh and complex, and offshore photovoltaic power generation areas are mostly located in areas with water depths greater than 20m. Fixed photovoltaic support structures require high construction costs and cannot meet the needs of offshore photovoltaic field development. Currently, floating photovoltaic support systems are mostly used.

The Chinese invention patent with the authorized notification number CN114802627B discloses a semi-submersible offshore photovoltaic power generation platform and offshore photovoltaic power generation array. It sets a higher support frame on the buoy and fixes the photovoltaic panel above the support frame, thereby avoiding the impact of waves on the bottom of the photovoltaic panel. However, the supporting frame requires a large amount of steel, and the steel is easily corroded under seawater erosion, resulting in high construction and maintenance costs of the seawater power generation system.

Contents of the invention

The technical problem to be solved by the present invention is: the existing floating offshore photovoltaic power generation support mechanism needs to install a high steel frame on the appendage to avoid waves impacting the photovoltaic panel, resulting in high construction and maintenance costs of the floating offshore photovoltaic power generation support mechanism.

In order to solve the above technical problems, the object of the present invention is to provide a floating offshore photovoltaic power generation support mechanism, which includes a floating body floating on the water surface and an anchoring mechanism for mooring the floating body at a specific position. The peripheral side of the elastic damping layer and the peripheral side of the elastic damping layer are both connected to the floating body, and a plurality of photovoltaic panels are horizontally laid on the upper flexible sheet layer at intervals.

As a preferred solution, the upper flexible sheet layer is an elastic film or elastic net, and the elasticity of the lower elastic sheet layer is greater than that of the upper flexible sheet layer.

As a preferred solution, the floating body is a hollow metal ring.

As a preferred solution, the upper end of the buoyant body is fixed with a cylindrical anti-surfing guard plate, and the cavity of the anti-overcrowding guard plate is arranged vertically opposite to the annular space.

As a preferred solution, the upper flexible sheet, the upper part of the buoyant body and the anti-surfing guard plate form a barrel-shaped structure with the opening facing upward;

The floating offshore photovoltaic power generation support mechanism includes a drain pipe and a buffer water tank. The upper end of the drain pipe communicates with the bottom of the barrel-shaped structure, and the lower end of the drain pipe communicates with the inner cavity of the buffer water tank. A drain port is provided at the bottom of the buffer water tank.

As a preferred solution, the drain pipe is an elbow.

As a preferred solution, the upper flexible sheet is in an arched shape with a high middle and low peripheral sides.

As a preferred solution, the floating offshore photovoltaic power generation support mechanism includes a horizontally arranged annular operation and maintenance platform, the outer peripheral side of the annular operation and maintenance platform is fixed on the upper end of the floating body, and the inner peripheral side of the annular operation and maintenance platform is surrounded by a plurality of diagonal struts, the upper ends of each of the diagonal braces are fixed on the inner peripheral side of the annular operation and maintenance platform, and the lower ends of each of the diagonal braces are fixed on the inner side of the floating body.

As a preferred solution, the floating offshore photovoltaic power generation support mechanism includes a first strip-shaped operation and maintenance platform and a second strip-shaped operation and maintenance platform arranged horizontally, the middle parts of the first strip-shaped operation and maintenance platform and the second strip-shaped operation and maintenance platform are arranged crosswise, and both ends of the first strip-shaped operation and maintenance platform and both ends of the second strip-shaped operation and maintenance platform are fixed on the floating body.

As a preferred solution, both the lower end of the first strip-shaped operation and maintenance platform and the lower end of the second strip-shaped operation and maintenance platform are in contact with the upper end of the upper flexible sheet.

Compared with prior art, the beneficial effect of the present invention is:

The floating offshore photovoltaic power generation support mechanism of the present invention includes a floating body floating on the water surface and an anchoring mechanism for mooring the floating body at a specific position. The side, the peripheral side of the lower elastic sheet layer and the peripheral side of the elastic damping layer are all connected to the floating body; the elastic deformation of the lower elastic sheet layer and the elastic deformation of the elastic damping layer can dissipate the wave force and reduce the effect of the wave on the upper flexible sheet; therefore, a plurality of photovoltaic panels of the floating offshore photovoltaic power generation support mechanism of the present invention can be laid on the upper flexible sheet horizontally at intervals, and there is no need to set a support frame for supporting the photovoltaic panels on the floating body, which reduces the construction and maintenance costs of the floating offshore photovoltaic power generation support mechanism.

Description of drawings

Fig. 1 is a top view of the floating offshore photovoltaic power generation support mechanism of the present invention;

Fig. 2 is a cross-sectional view of the floating offshore photovoltaic power generation support mechanism of the present invention;

Fig. 3 is a partially enlarged view in Fig. 2;

In the figure, 100, horizontal plane; 1, floating body; 2, upper flexible sheet; 3, lower elastic sheet; 4, elastic damping layer; 51, annular operation and maintenance platform; 52, diagonal brace; 53, first strip operation and maintenance platform; 54, second strip operation and maintenance platform;

Detailed ways

The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

In the description of the present invention, it should be understood that the orientations or positional relationships indicated by the terms "upper", "lower", "left", "right", "top", "bottom", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as limiting the present invention. It should be understood that the terms "first", "second", etc. are used in the present invention to describe various information, but these information should not be limited to these terms, and these terms are only used to distinguish information of the same type from each other. For example, "first" information may also be referred to as "second" information without departing from the scope of the present invention, and similarly, "second" information may also be referred to as "first" information.

As shown in Figures 1 to 3, the preferred embodiment of the floating offshore photovoltaic power generation support mechanism of the present invention includes a floating body 1 floating on the water surface and an anchoring mechanism for mooring the floating body 1 at a specific position. Both the peripheral side of the lower elastic sheet layer 3 and the elastic damping layer 4 are connected to the floating body 1 , and a plurality of photovoltaic panels are horizontally laid on the upper flexible sheet layer 2 at intervals. The elastic deformation of the lower elastic sheet 3 and the elastic deformation of the elastic damping layer 4 can dissipate the force of waves and reduce the effect of waves on the upper flexible sheet 2; therefore, a plurality of photovoltaic panels of the floating offshore photovoltaic power generation support mechanism of the present invention can be horizontally laid on the upper flexible sheet 2 at intervals, and there is no need to set a support frame for supporting photovoltaic panels on the floating body 1, which reduces the construction and maintenance costs of the floating offshore photovoltaic power generation support mechanism.

Specifically, in this embodiment, the peripheral side of the upper flexible sheet layer 2 and the peripheral side of the lower elastic sheet layer 3 are fixedly connected to the floating body 1 through a plurality of binding ropes, the lower elastic sheet layer 3 can be an elastic film or an elastic net, and the elastic damping layer 4 is a non-metallic continuous material and is a water-permeable and non-water-retaining material. Specifically, the elastic damping layer 4 can be formed by laminating multiple layers of elastic films, or can be a whole piece of rubber sheet; preferably, the elastic damping layer 4 is provided with a large number of rubber plates with meshes arranged up and down; The side 3 is fixedly connected to the floating body 1 through a connecting piece, and the connecting piece can be a clip or a connecting rope threaded around the elastic damping layer. Wherein, the upper flexible sheet 2 is an elastic film or an elastic net, and the elasticity of the lower elastic sheet 3 is greater than that of the upper flexible sheet 2 . The upper flexible sheet 2 is set as an elastic film or an elastic net so that the upper flexible sheet 2 has a certain degree of elasticity. Multiple photovoltaic panels are laid on the upper flexible sheet 2 at intervals. The upper flexible sheet 2 between two adjacent photovoltaic panels is easier to deform than the photovoltaic panels, so that a flexible connection node is formed between each photovoltaic panel. Therefore, when the wave impacts, the upper flexible sheet 2 bends or twists. The upper flexible sheet layer 2 between the photovoltaic panels further dissipates the impact of waves on the bottom of the photovoltaic panels. Moreover, the cost of connecting photovoltaic panels to the upper flexible sheet 2 is lower than that of setting hinge nodes between two adjacent photovoltaic panels.

In this embodiment, in order to ensure the strength and service life of the floating body 1, the floating body 1 is a hollow metal ring. The annular space enclosed by the floating body 1 can be circular, elliptical or polygonal; in this embodiment, the floating body 1 is an integral ring structure, the rigidity of the floating body 1 is uniform, the overall mechanical performance is excellent, the ability to resist wave force is strong, and the sea area to be adapted is wider.

Further, in order to prevent waves from impacting the upper surface of the photovoltaic panels, in this embodiment, a cylindrical anti-surpassing guard plate 6 is fixed on the upper end of the floating body 1, and the cavity of the anti-surpassing guard plate 6 is arranged opposite to the annular space up and down. Specifically, the lower end of the anti-surpassing guard plate 6 is welded and fixed to the top of the floating body 1, and the upper flexible sheet 2, the upper part of the floating body 1 and the anti-surviving wave guard plate 6 form a barrel-shaped structure with an opening facing upwards; the floating offshore photovoltaic power generation support mechanism includes a drainage pipe 7 and a buffer water tank 8. The upper end of the drainage pipe 7 communicates with the bottom of the barrel-shaped structure, and the lower end of the drain pipe 7 communicates with the inner cavity of the buffer water tank 8. The setting of the buffer water tank 8 can prevent seawater from being directly sprayed to the photovoltaic panel area by the drainage pipe under the action of waves. Further, in order to prevent sea waves from passing through the drain, the drain pipe 7 is an elbow. Setting the drainage pipe 7 as an elbow can further improve the flow resistance of external waves flowing from the drainage box into the photovoltaic panel area. As shown in Figure 3, the water outlet of the drainpipe 7 can be slightly lower than the horizontal plane 100 or higher than the horizontal plane 100°, and the drainpipe 7 forms a connector structure; furthermore, in the present embodiment, the drainpipe 7 is provided with a one-way valve, and the opening direction of the one-way valve is from the inside to the outside, so that the accumulated water in the barrel-shaped structure can be discharged from the drainpipe 7, while the water outside the barrel-shaped structure cannot flow into the bucket cavity of the barrel-shaped structure through the drainpipe 7.

In order to facilitate drainage, in this embodiment, the upper flexible sheet 2 is arched with a high center and low sides. Specifically, the shape of the upper end surface of the elastic damping layer 4 in this embodiment is an arched shape with a high center and low peripheral sides, and the flexible sheet layer 2 covers the elastic damping layer 4 . In other embodiments of the present invention, a fixing frame may be provided on the upper end of the elastic damping layer 4, and the flexible sheet layer 2 may be placed on the fixing frame.

In order to facilitate the maintenance of photovoltaic panels, in this embodiment, the floating offshore photovoltaic power generation support mechanism includes a horizontally arranged ring-shaped operation and maintenance platform 51. The outer peripheral side of the ring-shaped operation and maintenance platform 51 is fixed on the upper end of the floating body 1. The inner peripheral side of the annular operation and maintenance platform 51 is surrounded by a plurality of diagonal struts 52.

Further, the floating offshore photovoltaic power generation support mechanism includes a first strip-shaped operation and maintenance platform 53 and a second strip-shaped operation and maintenance platform 54 arranged horizontally, and the middle parts of the first strip-shaped operation and maintenance platform 53 and the second strip-shaped operation and maintenance platform 54 are arranged crosswise, and both ends of the first strip-shaped operation and maintenance platform 53 and both ends of the second strip-shaped operation and maintenance platform 54 are fixed on the floating body 1. Specifically, both ends of the first strip-shaped operation and maintenance platform 53 and both ends of the second strip-shaped operation and maintenance platform 54 are welded on the floating body 1. In other embodiments of the present invention, the first strip-shaped operation and maintenance platform 53 and the second strip-shaped operation and maintenance platform 54 can be set in multiples.

Wherein, the lower end of the first strip-shaped operation and maintenance platform 53 and the lower end of the second strip-shaped operation and maintenance platform 54 are in contact with the upper end of the upper flexible sheet 2 . The lower end of the first strip-shaped operation and maintenance platform 53 and the second strip-shaped operation and maintenance platform 54 can not only serve as a passage for maintenance personnel, but also provide reverse support to the upward flexible sheet 2, further improving the wave impact resistance of the floating offshore photovoltaic power generation support mechanism.

In this embodiment, the mooring mechanism can adopt a fixing method with a horizontal float and cooperate with a gravity anchor.

In summary, the preferred embodiment of the floating offshore photovoltaic power generation support mechanism of the present invention includes a floating body 1 floating on the water surface and an anchoring mechanism for mooring the floating body 1 at a specific position. The floating body 1 is in the shape of a ring, and the annular space surrounded by the floating body 1 is provided with an upper flexible sheet 2 and a lower elastic sheet 3 arranged at intervals up and down. The elastic damping layer 4 is filled between the lower elastic sheet 3 and the upper flexible sheet 2. The upper flexible sheet 2 is above the water surface. Both the peripheral side of the layer 3 and the elastic damping layer 4 are connected to the floating body 1, and a plurality of photovoltaic panels are horizontally laid on the upper flexible sheet layer 2 at intervals. The elastic deformation of the lower elastic sheet 3 and the elastic deformation of the elastic damping layer 4 can dissipate the force of waves and reduce the effect of waves on the upper flexible sheet 2; therefore, a plurality of photovoltaic panels of the floating offshore photovoltaic power generation support mechanism of the present invention can be horizontally laid on the upper flexible sheet 2 at intervals, and there is no need to set a support frame for supporting photovoltaic panels on the floating body 1, which reduces the construction and maintenance costs of the floating offshore photovoltaic power generation support mechanism.

The above is only a preferred embodiment of the present invention. It should be pointed out that for those of ordinary skill in the art, without departing from the technical principles of the present invention, some improvements and substitutions can also be made, and these improvements and substitutions should also be considered as protection scope of the present invention.

Claims (10)

1. A floating offshore photovoltaic power generation support mechanism, characterized in that it comprises a floating body (1) floating on the water surface and an anchoring mechanism for mooring the floating body (1) at a specific position, the floating body (1) is ring-shaped, and an upper flexible sheet (2) and a lower elastic sheet (3) arranged at intervals up and down are arranged in the annular space surrounded by the floating body (1), and an elastic damping layer (4) is filled between the lower elastic sheet (3) and the upper flexible sheet (2). The flexible sheet (2) is located above the water surface, the peripheral sides of the upper flexible sheet (2), the lower elastic sheet (3) and the elastic damping layer (4) are all connected to the floating body (1), and a plurality of photovoltaic panels are horizontally laid on the upper flexible sheet (2). 2. The floating offshore photovoltaic power generation support mechanism according to claim 1, characterized in that the upper flexible sheet (2) is an elastic film or elastic net, and the elasticity of the lower elastic sheet (3) is greater than that of the upper flexible sheet (2). 3. The floating offshore photovoltaic power generation support mechanism according to claim 1, characterized in that the floating body (1) is a hollow metal ring. 4. The floating offshore photovoltaic power generation support mechanism according to claim 1, characterized in that, the upper end of the floating body (1) is fixed with a cylindrical anti-surpassing guard plate (6), and the cylinder cavity of the anti-surpassing guard plate (6) is arranged opposite to the annular space up and down. 5. The floating offshore photovoltaic power generation support mechanism according to claim 4, characterized in that, the upper flexible sheet (2), the upper part of the floating body (1) and the anti-surpassing guard plate (6) form a barrel-shaped structure with the opening facing upward; The floating offshore photovoltaic power generation support mechanism includes a drainage pipe (7) and a buffer water tank (8), the upper end of the drainage pipe (7) communicates with the bottom of the barrel structure, the lower end of the drainage pipe (7) communicates with the inner cavity of the buffer water tank (8), and the bottom of the buffer water tank (8) is provided with a drain. 6. The supporting mechanism for floating offshore photovoltaic power generation according to claim 5, characterized in that the drain pipe (7) is an elbow. 7. The supporting mechanism for floating offshore photovoltaic power generation according to claim 1, characterized in that, the upper flexible sheet (2) is in an arched shape with a high center and low sides. 8. The floating offshore photovoltaic power generation support mechanism according to claim 1, characterized in that, the floating offshore photovoltaic power generation support mechanism comprises a horizontally arranged annular operation and maintenance platform (51), the outer peripheral side of the annular operation and maintenance platform (51) is fixed on the upper end of the floating body (1), and the inner peripheral side of the annular operation and maintenance platform (51) is surrounded by a plurality of diagonal struts (52), and the upper ends of each of the diagonal braces (52) are fixed on the annular operation and maintenance platform ( 51), the lower end of each diagonal strut (52) is fixed on the inner side of the floating body (1). 9. The floating offshore photovoltaic power generation support mechanism according to claim 1, characterized in that, the floating offshore photovoltaic power generation support mechanism comprises a horizontally arranged first strip-shaped operation and maintenance platform (53) and a second strip-shaped operation and maintenance platform (54), the middle parts of the first strip-shaped operation and maintenance platform (53) and the second strip-shaped operation and maintenance platform (54) are arranged crosswise, and both ends of the first strip-shaped operation and maintenance platform (53) and both ends of the second strip-shaped operation and maintenance platform (54) are fixed on the on the floating body (1). 10. The floating offshore photovoltaic power generation support mechanism according to claim 9, characterized in that, the lower ends of the first strip-shaped operation and maintenance platform (53) and the lower ends of the second strip-shaped operation and maintenance platform (54) are in contact with the upper end of the upper flexible sheet (2).