CN115709783A - Offshore photovoltaic floating body system - Google Patents

Abstract

The invention belongs to the technical field of photovoltaic power generation, and discloses a photovoltaic floating body system on the sea. The advantages of low cost, good seakeeping performance, and good bending resistance meet the requirements of offshore photovoltaic floating systems. It includes a plurality of photovoltaic floating body modules and connectors for fixing the plurality of photovoltaic floating body modules; each photovoltaic floating body module in the plurality of photovoltaic floating body modules includes an upper panel and a lower panel connected by welding, and the outer periphery of each photovoltaic floating body is provided with There are articulated connectors through which multiple photovoltaic floating bodies are hingedly connected. One end of the connector is connected to the articulated connector of the outermost photovoltaic floating body module, and the other end is connected to the external fixed pile foundation at sea. superior. Through the photovoltaic floating body system of the present invention, the photovoltaic floating body module can withstand a larger bending moment and is not easily damaged; at the same time, through the mechanism of the hinged connector, the sea resistance is enhanced, and the structure of the connecting piece prevents the photovoltaic floating body system from being affected by sea waves Any drifting, loss and damage.

Description

An Offshore Photovoltaic Floating Body System

technical field

The invention belongs to the technical field of photovoltaic power generation, and in particular relates to a photovoltaic floating body system on the sea.

Background technique

With the development of the economy and the progress of society, people put forward higher and higher requirements for energy, and finding new energy has become an urgent task facing mankind; the development and utilization of new clean energy is the only way for sustainable development and environmental protection, and rational development Marine resources are an inherent requirement for sustainable economic development. Therefore, renewable clean energy such as offshore wind power generation and photovoltaic power generation is developing rapidly.

Different from land-based photovoltaic power stations, marine facilities face an extremely complex environment. One of the problems that needs to be faced is: due to the harsh offshore environment, current offshore floating photovoltaics still face problems such as high cost of floating bodies and poor seakeeping performance. When the floating body is designed to be impervious to waves, the floating body will bear a large bending moment under the action of waves, which is easy to cause damage.

Contents of the invention

In order to solve the problems in the prior art, the present invention provides an offshore photovoltaic floating body system, which has the advantages of low cost, good seakeeping performance, and good bending resistance, and meets the requirements of the offshore photovoltaic floating system.

An offshore photovoltaic floating body system, comprising a plurality of photovoltaic floating body modules and connectors for fixing the plurality of photovoltaic floating body modules;

Each photovoltaic floating body module in the plurality of photovoltaic floating body modules includes an upper panel and a lower panel connected by welding, and the outer periphery of each photovoltaic floating body is provided with a hinged connector, and the plurality of photovoltaic floating bodies are connected through the hinged type. One end of the connector is connected to the hinged connector of the outermost photovoltaic floating body module, and the other end is connected to the external fixed pile foundation on the sea.

Further, the photovoltaic panel is connected to the upper panel of the photovoltaic floating body by lamination.

Further, a plurality of grooves are fixedly arranged on the upper panel and the lower panel of the floating body.

Further, the direction of the molded grooves on the upper panel and the lower panel is arbitrary, the number of molded grooves is multiple, and the molded grooves are evenly distributed on the upper panel and the lower panel.

Further, the shape of the groove is any one of triangle, rectangle, trapezoid, semicircle or arc.

Further, the directions of the grooves of the upper panel and the grooves of the lower panel are distributed alternately.

Further, the size of the photovoltaic panel is the same as that of the upper panel.

Further, the connecting piece is a hinge or a steel chain that has undergone antirust and anticorrosion treatment.

Further, the shape of the groove between the upper panel and the lower panel of the same photovoltaic floating body module is the same.

Further, the photovoltaic floating body module has a rectangular structure.

Compared with the prior art, the present invention has the advantages of:

Each photovoltaic floating body module in an offshore photovoltaic floating body system of the present invention includes an upper panel and a lower panel that are welded to each other, a photovoltaic panel is fixedly installed on the upper panel, and a groove is provided between the upper panel and the lower panel. structure, the strength of the photovoltaic floating body module composed of the upper panel and the lower panel is enhanced. When floating on the sea surface, the photovoltaic floating body module can bear a larger bending moment and is not easy to be damaged; The connector connects multiple photovoltaic floating body modules through hinged connectors, so that when the photovoltaic floating body system floats on the sea, the structure of the hinged connector can buffer the damage of the photovoltaic floating body system caused by the undulation of the sea surface. Seakeeping, avoiding the damage of a single photovoltaic floating body module and the damage of the photovoltaic floating body system; through the structure of the connector, the photovoltaic floating body system can be fixed in a fixed area on the sea, preventing the photovoltaic floating body system from being arbitrarily drifted, lost and damaged by waves. damage.

Furthermore, by connecting the photovoltaic panel and the upper panel by lamination, the upper panel of the photovoltaic floating body module and the photovoltaic panel are integrated, which avoids the problem of falling off and loosening of the photovoltaic panel when floating in the sea, and ensures the reliability of photovoltaic power generation. efficiency.

Further, through the structure of the groove, the groove is arranged between the upper panel and the lower panel, and a plurality of grooves are arranged between the upper and lower panels, and the shape of the groove is set to be triangular, rectangular, trapezoidal, or semicircular Shaped or arc-shaped, and the grooves between the upper and lower panels are staggered to increase the strength of the photovoltaic floating body module, so that the photovoltaic floating body module can withstand a large bending moment during the floating process at sea. Not easy to damage.

Further, by setting the size of the photovoltaic panel to be the same as the size of the upper panel, the area occupied by the photovoltaic panel on the photovoltaic floating body is larger, thereby ensuring the ability of photovoltaic power generation and improving the efficiency of photovoltaic power generation.

Furthermore, by setting the connecting piece as a hinge or steel chain that has undergone anti-rust and anti-corrosion treatment, on the one hand, the connecting piece has a certain strength, and on the other hand, it can resist corrosion, and the service life of the connecting piece is enhanced.

Description of drawings

The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention, and the schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations to the present invention.

In the attached picture:

Fig. 1 is an explosion schematic diagram of a single photovoltaic floating body module in an offshore photovoltaic floating body system of the present invention;

Fig. 2 is a schematic structural diagram of a single photovoltaic floating body module of an offshore photovoltaic floating body system according to the present invention;

Fig. 3 is a structural schematic diagram of a single photovoltaic floating body module of an offshore photovoltaic floating body system according to the present invention without the upper panel and the photovoltaic panel;

Fig. 4 is a schematic diagram of the distribution of medium-sized grooves on the lower panel of a preferred embodiment of the offshore photovoltaic floating body system of the present invention;

Fig. 5 is a structural schematic diagram of a quarter of a single photovoltaic floating body unit cut horizontally and vertically in an offshore photovoltaic floating body system according to the present invention;

Fig. 6 is a schematic diagram of the overall structure of an offshore photovoltaic floating body system according to the present invention.

Among them, the photovoltaic floating body module 1 , the upper panel 2 , the lower panel 3 , the connector 4 , the hinged connector 5 , the photovoltaic panel 6 , the groove 7 , the fastening gasket 8 , the fastening bolt 9 , and the fastening nut 10 .

Detailed ways

The present invention will be described in detail below with reference to the accompanying drawings and examples. It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

The following detailed descriptions are all exemplary descriptions, and are intended to provide further detailed descriptions of the present invention. Unless otherwise specified, all technical terms used in the present invention have the same meaning as commonly understood by those of ordinary skill in the art to which the present invention belongs. Terms used in the present invention are only for describing specific embodiments, and are not intended to limit exemplary embodiments according to the present invention.

In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", " The orientations or positional relationships indicated by "vertical", "horizontal", "top", "bottom", "inner" and "outer" are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and Simplified descriptions, rather than indicating or implying that the device or element referred to must have a particular orientation, be constructed and operate in a particular orientation, and thus should not be construed as limiting the invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, a feature defined as "first" and "second" may explicitly or implicitly include one or more of these features. In the description of the present invention, unless otherwise specified, "plurality" means two or more. In the description of the present invention, it should be noted that unless otherwise specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. Connected, or integrally connected; it can be mechanically connected or electrically connected; it can be directly connected or indirectly connected through an intermediary, and it can be the internal communication of two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention in specific situations.

An offshore photovoltaic floating body system of the present invention, as shown in Figure 6 and Figure 1, includes a plurality of photovoltaic floating body modules 1 and connectors 4 for fixing a plurality of photovoltaic floating body modules 1; each of the plurality of photovoltaic floating body modules 1 Each photovoltaic floating body module 1 includes an upper panel 2 and a lower panel 3 connected by welding, and a groove 7 is fixedly arranged on the upper panel 2 and the lower panel 3, so that the photovoltaic floating body module composed of the upper panel 2 and the lower panel 3 The strength of 1 is enhanced. When floating on the sea, the photovoltaic floating body module 1 can bear a larger bending moment and is not easy to be damaged; the outer periphery of each photovoltaic floating body module 1 is equipped with a hinged connector 5, and the photovoltaic floating body module 1 The joints are hingedly connected by the hinged connector 5, so that when the photovoltaic floating body system floats on the sea, the structure of the hinged connector 5 can buffer the damage of the photovoltaic floating body system caused by the undulation of the sea surface, thereby enhancing the seakeeping performance and avoiding a single Damage to the photovoltaic floating body module 1 and damage to the photovoltaic floating body system; one end of the connector 4 is connected to the articulated connector 5 of the outermost photovoltaic floating body module 1, and the other end is connected to the external fixed pile foundation on the sea; the photovoltaic floating body system can be It is fixed in a fixed area on the sea to avoid random drifting, loss and damage of the photovoltaic floating system due to the action of waves.

Preferably, the upper panel 2 and the lower panel 3 of a single photovoltaic floating body structure are connected by welding, and a closed unit is formed between the welded upper panel 2 and the lower panel 3, which is located below the upper panel 2 and the lower panel 3 The upper groove 7 is located inside the closed unit between the upper panel 2 and the lower panel 3 .

Preferably, the upper panel 2 and the lower panel 3 are made of metal materials, such as stainless steel plates, and the stainless steel plates are treated with seawater anti-corrosion and anti-rust treatment.

Specifically, as shown in Figure 2 and Figure 5, the photovoltaic panel 6 and the upper panel 2 of the photovoltaic floating body are connected by lamination, so that the upper panel 2 and the photovoltaic panel 6 form an integral structure. The periphery and the bottom surface of the photovoltaic panel 6 are in contact with the upper panel 2 . After lamination, the upper panel 2 and the photovoltaic panel 6 are fixedly connected to each other, which avoids the problem of falling off and loosening of the photovoltaic panel 6 when floating in the sea, and ensures the efficiency of photovoltaic power generation. Preferably, the height of the photovoltaic panel 6 after lamination is consistent with the height of the upper panel 2, that is, the upper surface of the photovoltaic panel 6 is flush with the upper surface of the upper panel 2; A waterproof sealant is provided to avoid corrosion between the upper panel 2 and the lower panel 3 caused by backflow of seawater.

Optionally, the welded connection between the upper panel 2 and the lower panel 3 can be an open structure, that is, only the welded parts between the upper panel 2 and the lower panel 3 are in contact with each other, and there are multiple mutual contact between the upper surface and the lower panel 3. The groove 7 on the lower surface is fixed by welding after connecting the upper panel 2 and the lower panel 3 through the metal parts.

Specifically, as shown in FIG. 3 , FIG. 4 and FIG. 5 , a plurality of grooves 7 are fixedly arranged on the upper panel 2 and the lower panel 3 of the floating body. Specifically, the number of grooves 7 includes but is not limited to one or more, which can be set to one or multiple. When there are multiple grooves 7 on the upper panel 2 and the lower panel 3, multiple The grooves 7 are evenly distributed on the upper panel 2 and the lower panel 3 . Preferably, the groove 7 is arranged below the upper panel 2 and above the lower panel 3, so that the groove 7 is located between the upper panel 2 and the lower panel 3, further ensuring the strength of the upper panel 2 and the lower panel 3 , thereby enhancing the strength of the photovoltaic floating body.

Specifically, as shown in FIG. 6 , the number of articulated connectors 5 on a single photovoltaic floating body is multiple, preferably a plurality of articulated connectors 5 are located on the outer periphery of the photovoltaic floating body module 1 , that is, around the photovoltaic floating body module 1 A plurality of articulated connectors 5 are arranged, preferably around a single photovoltaic floating body module 1 located in the middle of the photovoltaic floating body system, at least two articulated connectors 5 are arranged on each side, and the articulated connectors 5 are positioned at Evenly spaced on the sides,

Preferably, when the hinged connector 5 is connected between two photovoltaic floating body modules 1, one end of the hinged connector is connected to one photovoltaic floating body module 1, and the other end of the hinged connector is connected to another photovoltaic floating body module 1 Above; when the hinged connector is located at the outermost side, one end of the hinged connector is connected to a single photovoltaic floating body module 1 , and the other end is fixedly connected to one end of the connector 4 . Preferably, the hinged connector is connected to the middle of the photovoltaic floating body module 1 , and is connected to the photovoltaic floating body module 1 by screwing, welding or hooking. Specifically, the hinged connector is preferably a hinge-shaped connector, but the length of the hinge is relatively large, and the two parts of the hinge can rotate 360 degrees along the axis of the hinge; alternatively, the hinged connection The device 5 is a spring-type structure, that is, two anti-rust and anti-corrosion pipes are respectively fixed at both ends of the spring, and the spring between the pipes is used to balance and eliminate the fluctuation caused by the wave, so that the photovoltaic floating body module 1 has better fluctuation. Optionally, the hinged connector can also be a structure in which a universal joint is arranged between rigid pipes or connecting rods, so that the turning of the universal joint balances and alleviates fluctuations caused by waves. As shown in Figure 1, taking the hinged hinged connector 5 as an example, through holes are respectively provided on the two opening and closing sides of the hinge, and the hinged connector 5 passes through the tight joints passing through the through holes on the hinge. Fastening bolts 9 and fastening nuts 10 fixedly connect the hinged connector 5 to the photovoltaic floating body module, and fastening gaskets 8 are preferably arranged on both sides of the through hole of the hinge, so that when connecting the hinged hinged The connection of the connector 5 is more firm and reliable.

Specifically, after the hinged connector is connected to the photovoltaic floating body module 1, the opening and closing direction or moving direction of the hinged connector is the up and down direction, which is consistent with the undulating direction of seawater waves on the sea surface, so that the photovoltaic floating body When floating on the sea surface, the ups and downs caused by waves can be buffered and absorbed through the hinged connector, which makes the photovoltaic floating body system have better seakeeping.

Specifically, as shown in Figure 4, the direction of the groove 7 on the upper panel 2 and the lower panel 3 is any direction, the number of the groove 7 is multiple, and the plurality of grooves 7 are on the upper panel 2 and the lower panel 3 Evenly distributed. Preferably, the distribution direction of the grooves 7 on the upper panel 2 and the lower panel 3 is 45 degrees or 90 degrees.

Specifically, the shape of the groove 7 is any one of triangle, rectangle, trapezoid, semicircle or arc. The shape of the preferred groove 7 is a rectangular structure, as shown in Figure 5, the groove 7 of the rectangular structure can be a single rectangular wavy structure, or a rectangular tubular structure, and the groove 7 can be formed on the upper panel 2 and the lower panel 3 It is connected by welding, or an integrally formed groove 7 is provided on the upper and lower panels 3, so that the upper panel 2 or the lower panel 3 has a convex shape in any shape of triangle, rectangle, trapezoid, semicircle or arc. raised or dented.

Preferably, the grooves 7 of the upper panel 2 and the grooves 7 of the lower panel 3 are staggered in directions. In this way, on the one hand, the gap between the upper panel 2 and the lower panel 3 is increased, so that a single photovoltaic floating body module 1 has better buoyancy; on the other hand, the strength of the photovoltaic floating body module 1 is increased, so that the photovoltaic floating body module 1 The buoyant module 1 can bear a relatively large bending moment during the process of floating on the sea, and is not easy to be damaged.

Specifically, one or more photovoltaic panels 6 are installed on the upper panel 2, and one or more photovoltaic panels 6 are connected to the upper panel 2 by lamination; preferably, each upper panel 2 is provided with There is a photovoltaic panel 6 which has the same size as the upper panel 2 .

Specifically, the connecting piece 4 is a hinge or a steel chain that has undergone antirust and anticorrosion treatment.

Preferably, the shape of the groove 7 between the upper panel 2 and the lower panel 3 of the same photovoltaic floating body module 1 is the same.

Specifically, the shape of a single photovoltaic group floating body module includes but is not limited to circular, semicircular, fan-shaped or polygonal, and the formed photovoltaic floating body system is not limited to circular or polygonal; preferably a single photovoltaic floating body module 1 is a rectangular structure, The formed photovoltaic floating body system has a rectangular structure.

It can be known from common technical knowledge that the present invention can be realized through other embodiments without departing from its spirit or essential features. Accordingly, the above-disclosed embodiments are, in all respects, illustrative and not exclusive. All changes within the scope of the present invention or within the scope equivalent to the present invention are embraced by the present invention.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that: the present invention can still be Any modifications or equivalent replacements that do not depart from the spirit and scope of the present invention shall fall within the protection scope of the claims of the present invention.

Claims (9)

1. An offshore photovoltaic floating body system is characterized by comprising a plurality of photovoltaic floating body modules (1) and connecting pieces (4) for fixing the photovoltaic floating body modules (1);

every photovoltaic body module in a plurality of photovoltaic body modules (1) all includes looks welded connection's top panel (2) and lower panel (3) to all fixed type groove (7) of being provided with on top panel (2) and lower panel (3), all be provided with articulated formula connector (5) in the periphery of every photovoltaic body, pass through between a plurality of photovoltaic body modules (1) articulated connection mutually in articulated formula connector (5), the one end of connecting piece (4) is connected on articulated formula connector (5) of outside photovoltaic body module (1), and the other end is connected on marine outside fixed pile foundation.

2. An offshore photovoltaic float system, according to claim 1, characterized in that the connection between the photovoltaic panels (6) and the upper panels (2) of the photovoltaic float is by means of lamination.

3. An offshore photovoltaic buoyant body system according to claim 1, wherein the direction of the profiled groove (7) on the upper panel (2) and the lower panel (3) is arbitrary, the number of profiled grooves (7) is multiple, and the multiple profiled grooves (7) are evenly distributed on the upper panel (2) and the lower panel (3).

4. An offshore photovoltaic buoy system as claimed in claim 1, characterised in that the shape of the profiled grooves (7) is any one of triangular, rectangular, trapezoidal, semi-circular or arc-shaped.

5. An offshore photovoltaic buoyant body system according to claim 1, characterized in that the directions of the profiled grooves (7) of the upper panel (2) and the profiled grooves (7) of the lower panel (3) are staggered with respect to each other.

6. An offshore photovoltaic buoyant system according to claim 1, characterized in that the photovoltaic panels (6) are the same size as the upper panel (2).

7. Offshore photovoltaic buoy system according to claim 1, characterized in that the connection pieces (4) are hinges or steel chains that are treated for rust and corrosion protection.

8. An offshore photovoltaic buoyant system according to claim 1, characterized in that the profiled grooves (7) between the upper panel (2) and the lower panel (3) of one and the same photovoltaic buoyant module (1) are of the same shape.

9. Offshore photovoltaic buoy system according to claim 1, characterized in that the photovoltaic buoy modules (1) are rectangular structures.

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