Floating offshore photovoltaic power generation support mechanism

Abstract

The present application relates to offshore photovoltaic power generation technical field, particularly to a kind of floating offshore photovoltaic power generation support mechanism, including the float that floats on water surface and the anchoring mechanism for anchoring float in specific position, float is annular, and the annular space enclosed by float is equipped with upper flexible sheet layer and lower elastic sheet layer arranged at intervals, the periphery of upper flexible sheet layer and the periphery of lower elastic sheet layer are connected in the periphery of float, and elastic damping layer is filled between lower elastic sheet layer and upper flexible sheet layer, the periphery of upper flexible sheet layer, the periphery of lower elastic sheet layer and the periphery of elastic damping layer are connected with float;The elastic deformation of lower elastic sheet layer and the elastic deformation of elastic damping layer can dissipate wave action force, reduce the effect of wave on upper flexible sheet, and the support frame for supporting photovoltaic panel does not need to be set on float, so as to reduce the construction and maintenance cost of floating offshore photovoltaic power generation support mechanism.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of offshore photovoltaic power generation, in particular to a floating offshore photovoltaic power generation support mechanism. BACKGROUND

[0002] With the continuous and rapid growth of global photovoltaic installed capacity, the application of photovoltaic in different scenarios is continuously extended, and the industry attention of photovoltaic into the sea is increasing. Offshore photovoltaic has the characteristics of high power generation and less land occupation, and in the context of the increasing scarcity of land resources, offshore photovoltaic will have a very promising prospect. However, compared with the land environment, the offshore environment is more harsh and complex, and the offshore photovoltaic power generation area is mostly located in the area with water depth greater than 20m. When using a fixed photovoltaic support structure, the construction cost is high, which cannot meet the needs of offshore photovoltaic field development. At present, a floating photovoltaic support system is mostly used.

[0003] A Chinese invention patent with the authorized announcement number CN114802627B discloses a semi-submersible offshore photovoltaic power generation platform and offshore photovoltaic power generation array, which sets a higher support frame on the buoy, and fixes the photovoltaic panel above the support frame, so as to avoid the impact of sea waves on the bottom of the photovoltaic panel. However, the support frame needs to consume a large amount of steel, and the steel is easily corroded under the erosion of seawater, resulting in high construction and maintenance cost of the seawater power generation system. SUMMARY

[0004] The technical problem to be solved by the present application is that the existing floating offshore photovoltaic power generation support mechanism needs to set a higher steel frame on the appendage to avoid the impact of waves on the photovoltaic panel, resulting in high construction and maintenance cost of the floating offshore photovoltaic power generation support mechanism.

[0005] In order to solve the above technical problems, the purpose of the present application is to provide a floating offshore photovoltaic power generation support mechanism, which comprises a floating body floating on the water surface and an anchoring mechanism for anchoring the floating body at a specific position. The floating body is annular, and an annular space enclosed by the floating body is provided with an upper flexible sheet layer and a lower elastic sheet layer arranged in an upper-lower interval. An elastic damping layer is filled between the lower elastic sheet layer and the upper flexible sheet layer. The upper flexible sheet layer is above the water surface, and the circumferential side of the upper flexible sheet layer, the circumferential side of the lower elastic sheet layer and the circumferential side of the elastic damping layer are connected with the floating body. A plurality of photovoltaic panels are horizontally and intervally laid on the upper flexible sheet layer.

[0006] As a preferred scheme, the upper flexible sheet layer is an elastic film or an elastic net, and the elasticity of the lower elastic sheet layer is greater than that of the upper flexible sheet layer.

[0007] As a preferred scheme, the floating body is a hollow metal ring.

[0008] As a preferred solution, an anti-wave-overflow baffle in a cylindrical shape is fixed to the upper end of the floating body, and a cylindrical cavity of the anti-wave-overflow baffle is arranged opposite to the annular space.

[0009] As a preferred solution, the upper flexible sheet layer, the upper part of the floating body and the anti-wave-overflow baffle enclose a bucket-shaped structure with an opening facing upward.

[0010] The floating offshore photovoltaic power generation support mechanism comprises a drain pipe and a buffer water tank, the upper end of the drain pipe is in communication with the bottom of the bucket-shaped structure, the lower end of the drain pipe is in communication with the inner cavity of the buffer water tank, and the bottom of the buffer water tank is provided with a drain port.

[0011] As a preferred solution, the drain pipe is a bent pipe.

[0012] As a preferred solution, the upper flexible sheet layer is in an arch shape with a middle part being high and a peripheral part being low.

[0013] As a preferred solution, the floating offshore photovoltaic power generation support mechanism comprises a horizontally arranged annular operation and maintenance walkway, the outer periphery of the annular operation and maintenance walkway is fixed to the upper end of the floating body, the inner periphery of the annular operation and maintenance walkway is surrounded by a plurality of inclined struts, the upper end of each of the inclined struts is fixed to the inner periphery of the annular operation and maintenance walkway, and the lower end of each of the inclined struts is fixed to the inner side of the floating body.

[0014] As a preferred solution, the floating offshore photovoltaic power generation support mechanism comprises a horizontally arranged first strip-shaped operation and maintenance walkway and a second strip-shaped operation and maintenance walkway, the middle parts of the first strip-shaped operation and maintenance walkway and the second strip-shaped operation and maintenance walkway are arranged in a cross manner, and the two ends of the first strip-shaped operation and maintenance walkway and the two ends of the second strip-shaped operation and maintenance walkway are fixed to the floating body.

[0015] As a preferred solution, the lower end of the first strip-shaped operation and maintenance walkway and the lower end of the second strip-shaped operation and maintenance walkway are in abutment with the upper end of the upper flexible sheet layer.

[0016] Compared with the prior art, the present application has the following beneficial effects:

[0017] The floating offshore photovoltaic power generation support mechanism of the present application comprises a floating body floating on the water surface and an anchoring mechanism for anchoring the floating body at a specific position, the floating body is annular, an annular space enclosed by the floating body is provided with an upper flexible sheet layer and a lower elastic sheet layer arranged in an upper-lower interval, the upper flexible sheet layer is above the water surface, the circumferential side of the upper flexible sheet layer and the circumferential side of the lower elastic sheet layer are both connected to the circumferential side of the floating body, an elastic damping layer is filled between the lower elastic sheet layer and the upper flexible sheet layer, the circumferential side of the upper flexible sheet layer, the circumferential side of the lower elastic sheet layer and the circumferential 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 action force and reduce the effect of the wave on the upper flexible sheet; therefore, the floating offshore photovoltaic power generation support mechanism of the present application can horizontally and intervally lay multiple photovoltaic panels on the upper flexible sheet layer, does not need to set a support frame for supporting the photovoltaic panels on the floating body, and reduces the construction and maintenance cost of the floating offshore photovoltaic power generation support mechanism. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a top view of the floating offshore photovoltaic power generation support mechanism of the present application;

[0019] Figure 2 is a sectional view of the floating offshore photovoltaic power generation support mechanism of the present application;

[0020] Figure 3 is Figure 2 is a local enlarged view of the middle part;

[0021] In the figure, 100, horizontal plane; 1, floating body; 2, upper flexible sheet layer; 3, lower elastic sheet layer; 4, elastic damping layer; 51, annular operation and maintenance walkway; 52, inclined support rod; 53, first strip-shaped operation and maintenance walkway; 54, second strip-shaped operation and maintenance walkway; 6, anti-wave-overflow guard plate; 7, drain pipe; 8, buffer water tank. DETAILED DESCRIPTION

[0022] The specific embodiments of the present application are described in further detail below in combination with the drawings and examples. The following examples are used to illustrate the present application, but are not used to limit the scope of the present application.

[0023] In the description of this invention, it should be understood that the terms "upper," "lower," "left," "right," "top," "bottom," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. It should be understood that the terms "first," "second," etc., are used in this invention to describe various information, but this information should not be limited to these terms; these terms are only used to distinguish information of the same type from each other. For example, without departing from the scope of this invention, "first" information can also be referred to as "second" information, and similarly, "second" information can also be referred to as "first" information.

[0024] like Figures 1 to 3 As shown, a preferred embodiment of the floating offshore photovoltaic power generation support mechanism of the present invention includes a float 1 floating on the water surface and an anchoring mechanism for anchoring the float 1 at a specific position. The float 1 is annular, and an upper flexible sheet 2 and a lower elastic sheet 3 arranged vertically at intervals are provided within the annular space enclosed by the float 1. An elastic damping layer 4 is filled between the lower elastic sheet 3 and the upper flexible sheet 2. The upper flexible sheet 2 is located above the water surface, and the periphery of the upper flexible sheet 2, the periphery of the lower elastic sheet 3, and the periphery of the elastic damping layer 4 are all connected to the float 1. Multiple photovoltaic panels are horizontally spaced on the upper flexible sheet 2. The elastic deformation of the lower elastic sheet 3 and the elastic damping layer 4 can dissipate wave forces and reduce the effect of waves on the upper flexible sheet 2. Therefore, multiple photovoltaic panels of the floating offshore photovoltaic power generation support mechanism of the present invention can be horizontally spaced on the upper flexible sheet 2 without the need for a support frame for supporting the photovoltaic panels on the float 1, thus reducing the construction and maintenance costs of the floating offshore photovoltaic power generation support mechanism.

[0025] Specifically, in the embodiment, the circumferential side of the upper flexible sheet layer 2 and the circumferential side of the lower elastic sheet layer 3 are fixedly connected with 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, the elastic damping layer 4 is a non-metal continuous material and is a water-permeable and water-retaining material, specifically, the elastic damping layer 4 can be formed by stacking a plurality of elastic rubber sheets, or can be an integral rubber plate; preferably, the elastic damping layer 4 is a rubber plate provided with a large number of upper and lower arranged mesh holes; the circumferential side of the elastic damping layer 4 is fixedly connected with the floating body 1 through a connecting piece, which can be a clamp or a connecting rope arranged on the circumferential side of the elastic damping layer 4. The upper flexible sheet layer 2 is an elastic film or an elastic net, and the elasticity of the lower elastic sheet layer 3 is greater than that of the upper flexible sheet layer 2. The upper flexible sheet layer 2 is arranged as an elastic film or an elastic net, so that the upper flexible sheet layer 2 has a certain elasticity, a plurality of photovoltaic panels are arranged on the upper flexible sheet layer 2, the upper flexible sheet layer 2 between adjacent two photovoltaic panels is more easily deformed than the photovoltaic panels, so that flexible connection nodes are formed between the photovoltaic panels, and therefore, when waves impact, the upper flexible sheet layer 2 is bent or twisted and deformed, since water has fluidity, the photovoltaic panels are arranged on the upper flexible sheet layer 2, so that the impact force of breaking waves on the photovoltaic panels is guided to the upper flexible sheet layer 2 between adjacent two photovoltaic panels, and the impact of waves on the bottom of the photovoltaic panels is further dissipated. Moreover, the photovoltaic panels are connected on the upper flexible sheet layer 2, which has lower cost than arranging hinge nodes between adjacent two photovoltaic panels.

[0026] In the 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, oval or polygonal; in the embodiment, the floating body 1 is a whole ring structure, the stiffness of the floating body 1 is uniform, the whole stress performance is excellent, the resistance to wave force is strong, and the adaptability to sea areas is more extensive.

[0027] Further, in order to prevent sea waves from impacting the upper surface of the photovoltaic panels, in the embodiment, the upper end of the floating body 1 is fixedly provided with a cylindrical anti-wave board 6, and the barrel cavity of the anti-wave board 6 is arranged opposite to the annular space. Specifically, the lower end of the anti-wave board 6 is fixedly welded with the top of the floating body 1, and the upper flexible sheet layer 2, the upper part of the floating body 1 and the anti-wave board 6 enclose a bucket-shaped structure with an opening upward; the floating type offshore photovoltaic power generation support mechanism comprises a drain pipe 7 and a buffer water tank 8, the upper end of the drain pipe 7 is in communication with the bottom of the bucket-shaped structure, the lower end of the drain pipe 7 is in communication with the inner cavity of the buffer water tank 8, and the bottom of the buffer water tank 8 is provided with a drain port, so as to avoid water accumulation in the barrel cavity of the bucket-shaped structure. The arrangement of the buffer water tank 8 can avoid that seawater is directly sprayed to the photovoltaic panel area through the drain pipe under the action of waves. Further, in order to prevent sea waves from passing through the drain port, the drain pipe 7 is a bent pipe. Arranging the drain pipe 7 as a bent pipe can further improve the flow resistance of external waves flowing from the drain tank into the photovoltaic panel area. As shown in FIG. 6, the drain pipe 7 is arranged as a bent pipe, so that the flow resistance of external waves flowing from the drain tank into the photovoltaic panel area is further improved. Figure 3As shown, the water outlet of the drain pipe 7 can be slightly lower than the horizontal plane 100 or higher than the horizontal plane 100, and the drain pipe 7 forms a communicating vessel structure; further, in the embodiment, a one-way valve is arranged in the drain pipe 7, and the opening direction of the one-way valve is from inside to outside, so that the accumulated water in the barrel-shaped structure can be drained from the drain pipe 7, and the water outside the barrel-shaped structure cannot flow into the barrel cavity of the barrel-shaped structure through the drain pipe 7.

[0028] In order to facilitate drainage, in the embodiment, the upper flexible sheet layer 2 is in an arch shape with the middle being high and the periphery being low. Specifically, in the embodiment, the upper end surface of the elastic damping layer 4 is in an arch shape with the middle being high and the periphery being low, and the flexible sheet layer 2 is arranged on the elastic damping layer 4. In other embodiments of the present application, a fixing frame can be arranged on the upper end of the elastic damping layer 4, and the flexible sheet layer 2 is arranged on the fixing frame, and the upper end surface of the fixing frame is in an arch shape with the middle being high and the periphery being low.

[0029] In order to facilitate maintenance of the photovoltaic panel, in the embodiment, the floating offshore photovoltaic power generation support mechanism includes a horizontal annular maintenance walkway 51, the outer periphery of the annular maintenance walkway 51 is fixed to the upper end of the floating body 1, and a plurality of inclined struts 52 are arranged around the inner periphery of the annular maintenance walkway 51, the upper end of each inclined strut 52 is fixed to the inner periphery of the annular maintenance walkway 51, and the lower end of each inclined strut 52 is fixed to the inner side of the floating body 1.

[0030] Further, the floating offshore photovoltaic power generation support mechanism includes a first strip-shaped maintenance walkway 53 and a second strip-shaped maintenance walkway 54, the middle parts of the first strip-shaped maintenance walkway 53 and the second strip-shaped maintenance walkway 54 are arranged in a cross manner, and the two ends of the first strip-shaped maintenance walkway 53 and the two ends of the second strip-shaped maintenance walkway 54 are fixed to the floating body 1. Specifically, the two ends of the first strip-shaped maintenance walkway 53 and the two ends of the second strip-shaped maintenance walkway 54 are welded to the floating body 1, and in other embodiments of the present application, the first strip-shaped maintenance walkway 53 and the second strip-shaped maintenance walkway 54 can be arranged in multiple.

[0031] The lower end of the first strip-shaped maintenance walkway 53 and the lower end of the second strip-shaped maintenance walkway 54 abut against the upper end of the upper flexible sheet layer 2. The lower end of the first strip-shaped maintenance walkway 53 and the lower end of the second strip-shaped maintenance walkway 54 not only can serve as a passage for maintenance personnel, but also can provide a reverse supporting force to the upper flexible sheet layer 2, further improving the wave impact resistance of the floating offshore photovoltaic power generation support mechanism.

[0032] In the embodiment, the anchoring mechanism can adopt a fixing mode with a horizontal float and a gravity anchor.

[0033] In summary, the preferred embodiment of the floating offshore photovoltaic power generation support mechanism of the present application comprises a floating body 1 floating on the water surface and an anchoring mechanism for anchoring the floating body 1 at a specific position, the floating body 1 is annular, an upper flexible sheet layer 2 and a lower elastic sheet layer 3 are arranged in an upper and lower interval in the annular space enclosed by the floating body 1, an elastic damping layer 4 is filled between the lower elastic sheet layer 3 and the upper flexible sheet layer 2, the upper flexible sheet layer 2 is above the water surface, the peripheral side of the upper flexible sheet layer 2, the peripheral side of the lower elastic sheet layer 3 and the peripheral side of the elastic damping layer 4 are connected with the floating body 1, and a plurality of photovoltaic panels are horizontally and intervally laid on the upper flexible sheet layer 2. The elastic deformation of the lower elastic sheet layer 3 and the elastic deformation of the elastic damping layer 4 can dissipate the wave action force and reduce the effect of the wave on the upper flexible sheet layer 2; therefore, the plurality of photovoltaic panels of the floating offshore photovoltaic power generation support mechanism of the present application can be horizontally and intervally laid on the upper flexible sheet layer 2, and a support frame for supporting the photovoltaic panels does not need to be arranged on the floating body 1, thereby reducing the construction and maintenance cost of the floating offshore photovoltaic power generation support mechanism.

[0034] The above only describes the preferred embodiments of the present application, and it should be noted that those skilled in the art can make several improvements and replacements without departing from the technical principles of the present application, and these improvements and replacements should also be considered as the protection scope of the present application.

Claims

1. A floating offshore photovoltaic power generation support mechanism, characterized by, The floating body (1) floats on the water surface, and an anchoring mechanism is used to anchor the floating body (1) at a specific position. The floating body (1) is annular, and an annular space enclosed by the floating body (1) is provided with an upper flexible sheet layer (2) and a lower elastic sheet layer (3) arranged in an upper-lower interval. An elastic damping layer (4) is filled between the lower elastic sheet layer (3) and the upper flexible sheet layer (2). The upper flexible sheet layer (2) is above the water surface. The circumferential side of the upper flexible sheet layer (2), the circumferential side of the lower elastic sheet layer (3), and the circumferential side of the elastic damping layer (4) are all connected with the floating body (1). A plurality of photovoltaic panels are horizontally and intervally laid on the upper flexible sheet layer (2). The elastic damping layer (4) is a water-permeable and non-water-retaining material. The upper end of the floating body (1) is fixed with a wave-preventing shield (6) in the form of a cylinder. The cylinder cavity of the wave-preventing shield (6) is arranged opposite to the annular space in an upper-lower direction. The upper flexible sheet layer (2), the upper part of the floating body (1), and the wave-preventing shield (6) enclose a bucket-shaped structure with an opening facing upward. The floating offshore photovoltaic power generation support mechanism includes a drain pipe (7) and a buffer water tank (8). The upper end of the drain pipe (7) is in communication with the bottom of the bucket-shaped structure. The lower end of the drain pipe (7) is in communication with the inner cavity of the buffer water tank (8). The bottom of the buffer water tank (8) is provided with a drain port. The buffer water tank (8) is used to avoid seawater from being sprayed to the photovoltaic panel area by the drain pipe (7) under the action of waves.

2. The floating offshore photovoltaic power generation support mechanism according to claim 1, characterized by, The upper flexible sheet layer (2) is an elastic film or an elastic net. The elasticity of the lower elastic sheet layer (3) is greater than that of the upper flexible sheet layer (2).

3. The floating offshore photovoltaic power generation support mechanism according to claim 1, characterized by, The floating body (1) is a hollow metal ring.

4. The floating offshore photovoltaic power generation support mechanism according to claim 1, characterized by, The drain pipe (7) is a bent pipe.

5. The floating offshore photovoltaic power generation support mechanism according to claim 1, characterized by, The upper flexible sheet layer (2) is in the form of an arch with a middle part being high and a circumferential side being low.

6. The floating offshore photovoltaic power generation support mechanism according to claim 1, characterized by, The floating offshore photovoltaic power generation support mechanism includes a horizontally arranged annular operation and maintenance walkway (51). The outer circumferential side of the annular operation and maintenance walkway (51) is fixed at the upper end of the floating body (1). The inner circumferential side of the annular operation and maintenance walkway (51) is surrounded by a plurality of inclined struts (52). The upper end of each inclined strut (52) is fixed to the inner circumferential side of the annular operation and maintenance walkway (51). The lower end of each inclined strut (52) is fixed to the inner side of the floating body (1).

7. The floating offshore photovoltaic power generation support mechanism according to claim 1, characterized by, The floating offshore photovoltaic power generation support mechanism includes a first strip-shaped operation and maintenance walkway (53) and a second strip-shaped operation and maintenance walkway (54) arranged horizontally. The middle parts of the first strip-shaped operation and maintenance walkway (53) and the second strip-shaped operation and maintenance walkway (54) are arranged in an intersecting manner. The two ends of the first strip-shaped operation and maintenance walkway (53) and the two ends of the second strip-shaped operation and maintenance walkway (54) are both fixed to the floating body (1).

8. The floating offshore photovoltaic power generation support mechanism according to claim 7, characterized by, The lower end of the first strip-shaped operation and maintenance walkway (53) and the lower end of the second strip-shaped operation and maintenance walkway (54) are both in abutment with the upper end of the upper flexible sheet layer (2).

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