CN220010044U - Floating type photovoltaic power generation system and photovoltaic power station - Google Patents

Abstract

The utility model provides a floating type photovoltaic power generation system and a photovoltaic power station, and relates to the technical field of photovoltaic power generation. The floating type photovoltaic power generation system and the photovoltaic power station adopted by the utility model comprise a support component, a floating component and a photovoltaic component; the support assembly includes: the system comprises a plurality of upright posts, at least two stranded wires and a plurality of oblique beams; the top ends of the upright posts support a plurality of inclined beams, the inclined beams are connected through at least two stranded wires, and the photovoltaic module is supported by the at least two stranded wires; the floatation assembly includes: a plurality of buoyancy tanks, a plurality of anchor blocks, a plurality of mooring lines; the buoyancy tanks are connected with the anchor blocks through the mooring ropes, and support the upright posts. The utility model adopts the prestress stranded wire, improves the problem that the conventional steel frame is easy to break, and also uses the concrete buoyancy tank with the cavity structure, so that excessive plastic floating bodies are not needed, and the effects of low price and environmental protection are achieved.

Description

Floating type photovoltaic power generation system and photovoltaic power station

Technical Field

The embodiment of the utility model relates to the technical field of photovoltaic power generation, in particular to a floating type photovoltaic power generation system and a photovoltaic power station.

Background

The floating type photovoltaic power generation is an overwater photovoltaic power station built in water areas such as ponds, small lakes, reservoirs, impoundments and sea surfaces, can effectively and comprehensively utilize water bodies, and solves the defect of large occupied area of the traditional photovoltaic power generation.

In the prior art, a floating type photovoltaic power generation system generally comprises a photovoltaic module, a supporting steel frame and a floating module. When constructing a floating photovoltaic power plant, a tightly connected plastic floating body is often used as a floating component, and a conventional steel frame is used as a bracket and carries the photovoltaic component.

However, the plastic floating bodies are used as floating components, the plastic materials pollute the water body environment, and when the plastic floating bodies are installed, a plurality of plastic floating bodies are needed to be nested in each component, so that the number of the needed floating bodies is large, and the cost is high; the existing conventional steel frame is easy to break when encountering severe weather such as heavy stormy waves.

Disclosure of Invention

The utility model aims to provide a floating type photovoltaic power generation system, which solves the problems that a conventional steel frame is easy to break, and a plastic floating body is high in cost and affects the water body environment in the related technology.

In order to solve the technical problems, the utility model is realized as follows:

the embodiment of the utility model provides a floating type photovoltaic power generation system, which comprises a support assembly, a floating assembly and a photovoltaic assembly, wherein the support assembly is arranged on the support assembly; the floating assembly supports the supporting assembly, and the supporting assembly supports the photovoltaic assembly;

wherein, the support assembly includes: the system comprises a plurality of upright posts, at least two stranded wires and a plurality of oblique beams; the top ends of the upright posts support a plurality of inclined beams, the inclined beams are connected through at least two stranded wires, and the photovoltaic module is supported by the at least two stranded wires;

the floatation assembly includes: a plurality of buoyancy tanks, a plurality of anchor blocks, a plurality of mooring lines; the buoyancy tanks are connected with the anchor blocks through the mooring ropes, and support the upright posts.

Optionally, the plurality of buoyancy tanks include an inner buoyancy tank and an outer buoyancy tank, the inner buoyancy tank being located between at least two of the outer buoyancy tanks; the outer buoyancy tank is connected with at least two anchor blocks, and the inner buoyancy tank is connected with at least one anchor block.

Optionally, the plurality of upright posts includes an inner upright post and an outer upright post, and the plurality of diagonal beams includes an inner diagonal beam and an outer diagonal beam;

the first end of the inner upright post is connected with the inner buoyancy tank, and the second end of the inner upright post is connected with the inner inclined beam; the first end of the outer upright post is connected with the outer buoyancy tank, and the second end of the outer upright post is connected with the outer inclined beam;

the surface of the inner floating box, which is connected with the inner upright post, is a first surface, and the surface of the outer floating box, which is connected with the outer upright post, is a second surface; wherein the inner side inclined beam forms a first inclination angle relative to the first surface, and the outer side inclined beam forms a second inclination angle relative to the second surface; the first inclination angle and the second inclination angle are the same in size and the same in orientation.

Optionally, the outer side stand column comprises a short stand column and a long stand column, the length of the short stand column is smaller than that of the long stand column, and the length of the inner side stand column is smaller than that of the long stand column and larger than that of the short stand column.

Optionally, a first reinforcing support is connected between the long upright and the short upright.

Optionally, at least two second reinforcing supports are connected between the inner upright and the inner oblique.

Optionally, the support assembly further comprises: a metal fixing member, a third reinforcing support member;

the metal fixing piece is used for fixing the joint of the first end of the third reinforcing support piece and the outer side buoyancy tank, and the second end of the third reinforcing support piece is connected with the outer side inclined beam.

Optionally, the floatation assembly further comprises a plurality of connecting lines;

at least one connecting rope is connected between at least two outer buoyancy tanks, and at least one connecting rope is connected between at least two inner buoyancy tanks.

Optionally, a plurality of the buoyancy tanks have a cavity structure.

Further, the utility model provides a photovoltaic power plant, employing a floating photovoltaic power generation system comprising any of the optional features described above.

According to the floating type photovoltaic power generation system provided by the utility model, the prestress stranded wires are adopted as the connecting wires and are stabilized by the reinforcing support piece to replace the conventional steel frame in the prior art, when severe weather such as heavy stormy waves is encountered for many times, the tensile stress caused by the stormy waves can be reduced by the integral prestress structure, the integral frame is not easy to break, and the problem that the conventional steel frame is easy to break is solved.

In addition, the utility model also adopts the high-performance concrete buoyancy tank with the cavity structure to replace the plastic floating body in the prior art, the high-performance concrete material in water does not produce serious pollution like plastic, the high density of the buoyancy tank is matched with the cavity structure on water to not only stabilize the integral frame, but also provide enough buoyancy, the buoyancy is not required to be provided by too much quantity like the plastic floating body, and the problems of too many plastic floating bodies, high cost and influence on the water body environment are solved.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

Fig. 1 is an elevation view of a floating photovoltaic power generation system according to an embodiment of the present utility model;

fig. 2 is a side view of a floating photovoltaic power generation system according to an embodiment of the present utility model;

FIG. 3 is an elevation view of an outboard buoyancy tank and outboard column;

FIG. 4 is an elevation view of an inboard buoyancy tank and inboard column;

fig. 5 is a top view of a floating photovoltaic power generation system according to an embodiment of the present utility model.

Reference numerals:

100: an anchor block; 101: mooring ropes; 102: an outer buoyancy tank; 103: an inner buoyancy tank; 104: a connecting cable; 200: an inner upright; 2102: a short column; 2101: a long upright; 203: an inner side sloping; 204: a metal fixing member; 205: a first reinforcing support; 206: a second reinforcing support; 207: a third reinforcing support; 208: an outer oblique beam; 209: stranded wire; 210: an outer column; 10: a floatation assembly; 20: a support assembly; 30: a photovoltaic module.

Detailed Description

Reference will now be made in detail to embodiments of the present utility model, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements throughout or elements having like or similar functionality. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be appreciated that reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure or characteristic described in connection with the embodiment is included in at least one embodiment of the present utility model. Thus, the appearances of the phrases "in one embodiment" or "in an embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

Fig. 1 is an elevation view of an embodiment of a floating photovoltaic power generation system provided by the present utility model, and fig. 2 is a side view of an embodiment of a floating photovoltaic power generation system provided by the present utility model. As shown in fig. 1 and 2, the floating power generation system provided by the utility model comprises a support assembly 20, a floating assembly 10 and a photovoltaic assembly 30, wherein the main components of the floating power generation system are an outer floating box 102, an inner floating box 103, an anchor block 100, a mooring rope 101, an outer upright post 210, an inner upright post 200, an outer inclined beam 208, an inner inclined beam 203 and stranded wires 209 for supporting the photovoltaic assembly 30, which are positioned on the water surface and used for providing buoyancy for the whole framework and fixing the position of the power generation system.

Each outer floating box 102 is connected with two anchor blocks 100 through mooring ropes 101, each inner floating box 103 is connected with one anchor block 100 through a mooring rope 101, each outer floating box 102 and each inner floating box 103 are used for providing buoyancy and a bearing platform for the whole power generation system, and each anchor block 100 is used for fixing the position of the power generation system and preventing the power generation system from drifting at will when encountering heavy storms.

It should be noted that, the number of anchor blocks 100 connected to the outer buoyancy tank 102 by the mooring rope 101 may be two, three or more, and the number of anchor blocks 100 connected to the inner buoyancy tank 103 may be one, two or more, so long as the entire floating power generation system can be ensured to float on water more stably.

The mooring rope 101 may be an iron chain made of carbon steel, or an elastic rope made of high-density polyethylene; the anchor block 100 may be a counterweight anchor body made of common concrete and steel bars, or made of other materials.

Alternatively, the outer pontoons 102 and inner pontoons 103 may be hollow to provide buoyancy to the overall system. Illustratively, concrete buoyancy tanks may employ cavity structures with wall thicknesses varying from 2cm to 20cm, such as 2cm, 6cm, 9cm, 13cm, 17cm, etc. The cavity structure has thin air, so that the buoyancy of the outer buoyancy tank 102 and the inner buoyancy tank 103 is greatly improved, and the total buoyancy of the whole floating power generation system is larger than the total weight of the whole floating power generation system.

It should be noted that, the specific forms of the cavity structures of the outer buoyancy tank 102 and the inner buoyancy tank 103 are not limited, and may be spherical cavities, cuboid cavities, or various other cavities, and the specific shapes of the cavity structures may be adaptively adjusted and modified according to actual requirements or technological means; in the cavity structure, normal atmospheric air can exist, the cavity can be vacuumized to further improve buoyancy, and other special gases with special properties, such as nitrogen, carbon dioxide and other corrosion-resistant gases, can be used in the cavity structure.

In addition, different buoyancy tanks can adopt the same cavity structure, and also can adopt different cavity structures. For example, when the buoyancy provided by different cavity structures is different, the inner buoyancy tank 103 may be a buoyancy tank with a cavity structure, the outer buoyancy tank 102 may be a buoyancy tank with a cavity section, and of course, the inner buoyancy tank 103 and the outer buoyancy tank 102 may be a buoyancy tank with the same cavity structure, and the specific selection may be determined according to actual needs.

Optionally, the materials used for the outer buoyancy tank 102 and the inner buoyancy tank 103 are concrete materials, so that compared with the conventional plastic floating bodies, the concrete buoyancy tank has fewer connection points, so that the high number and complicated nesting steps of the plastic floating bodies and reassembly after floating loss are avoided, labor cost is low, and cost is saved; the concrete buoyancy tank is used as a part of the floating assembly 30 of the photovoltaic power generation system in water, the stability of the concrete buoyancy tank is higher compared with that of a plastic floating body, and pollutants are not contained in the concrete material, so that the water body environment is not endangered like plastic.

Further, the concrete material used for the outer pontoon 102 and the inner pontoon 103 is high-performance concrete, and it is required to have a compressive strength of 2100 mpa or more, a flexural tensile strength of 20 mpa or more, an axial tensile strength of 7 mpa or more, and an elastic modulus of 50 gpa or more. Thus, when the concrete encounters severe stormy waves, the extremely high compressive capacity enables the concrete to provide more excellent hardness and durability than the conventional materials, the extremely high tensile capacity and elasticity enable the concrete to be more resistant to loss, the service time is long, and the concrete is not easy to damage.

Alternatively, the dimensions of the outer pontoons 102 and the inner pontoons 103 may be modified to better fit the needs of the actual power generation system. Illustratively, when the concrete buoyancy tank is rectangular, its length is between 1-5m, such as 1m, 2m, 3m, 4m, 5m, etc.; the width is also between 1 and 5m, such as 1m, 2m, 3m, 4m, 5m, etc.; the height is between 0.2 and 0.8m, such as 0.2m, 0.4m, 0.6m, 0.8m, etc.

The concrete buoyancy tank can be in a trapezoid shape such as a prismatic table, an inverted cone shape, a cylinder and the like besides a cuboid, and the shape of the concrete buoyancy tank can be selected according to actual requirements, such as selecting the cylinder buoyancy tank to meet a certain actual manufacturing process, selecting the cuboid buoyancy tank to facilitate equipment transportation and the like. Illustratively, when the concrete buoyancy tank is a sphere, the largest inscribed rectangle of the sphere concrete buoyancy tank has a length or width dimension of no more than 5m, such as 2m, 3m, 4m, 5m, etc.

Further, in the case where the number of the outer buoyancy tanks 102 is not less than 4 and the inner buoyancy tanks 103 are not spaced apart in the middle, the opposing surfaces of the adjacent two outer buoyancy tanks 102 may be fixedly connected by the connecting cable 104. Likewise, two adjacent inner buoyancy tanks can be connected by a connecting rope 104, so that a plurality of connecting structures are stabilized, and the floating assembly is prevented from floating around due to uneven stress in waves.

When two buoyancy tanks are connected, one connecting cable 104 may be used, or two or more connecting cables 104 may be used, and the connection manner is not fixed, and the number of connecting cables 104 is not fixed, so long as the buoyancy tanks can be stabilized, for example, two intersecting connecting cables 104 are used to connect two opposite surfaces of the two buoyancy tanks, two or more connecting cables 104 are used to connect two opposite surfaces of the two buoyancy tanks.

The connecting cable 104 may be a chain made of carbon steel or a high-strength elastic rope, or may be a prestressed wire rope, etc., and the specific material of the connecting cable 104 is not limited as long as the connection between the two buoyancy tanks is stabilized.

Alternatively, the outer upright 210 adopts a mode of combining a long upright 2101 and a short upright 2102, the top ends of the long upright 2101 and the short upright 2102 are connected with an outer oblique beam 208, and two stranded wires 209 are connected on the outer oblique beam 208 for supporting the photovoltaic module 30. Like this, the mode that uses long stand 2101 and short stand 2102 to combine together makes the frame construction on both sides more firm to can help outside sloping 208 comparatively simple formation inclination, set up the orientation of photovoltaic module 30 according to the angle of sunshine when making things convenient for its connection stranded conductor 209.

It should be noted that, the long upright 2101 and the short upright 2102 are steel structure uprights, including but not limited to round steel pipes, rectangular pipes, H-steel, and channel steel, and the shape of the long upright 2101 and the shape of the short upright 2102 may be the same or different, and may be selected according to actual requirements such as cost, mechanical properties, and the like.

In addition, the outer column 210 may be not only two columns of different lengths, but also three or more columns, as long as the stability of the columns can be improved. Similarly, the number of the twisted wires 209 is two or more, and the coupling manner of the twisted wires 209 and the photovoltaic module 30 is not limited, so long as the photovoltaic module 30 can be fixed and supported, for example, a certain fixing device is additionally added at the position where the inner oblique beam 203 supports the twisted wires 209, so as to cooperate with the twisted wires 209 to support the photovoltaic module 30 together.

Optionally, the long upright 2101 and the short upright 2102 may adopt a telescopic upright structure, so that the outer oblique beam 208 is simpler and more convenient to operate when being fixed between the long upright 2101 and the short upright 2102, the orientation of the outer oblique beam 208 is easier to adjust, and even if the orientation of the outer oblique beam 208 is deviated in actual operation, the direction of sunlight cannot be accurately aligned, the telescopic structures of the long upright 2101 and the short upright 2102 can be used for adaptively adjusting, so that the direction of sunlight is adjusted to be correct.

In addition, the inner upright 200 may also be of a telescopic structure, and in combination with the telescopic outer upright 210, the height of the entire floating power generation system, particularly the height of the photovoltaic module 30, may be adjusted. Therefore, when severe weather such as heavy stormy waves is met, part of the height can be properly reduced according to the mechanical structure of the actual floating system, the damage probability of the whole floating system is reduced, and then the original setting height is readjusted when the weather is good.

In particular, when the inner and outer columns 200 and 210 use the telescopic column structure and are lowered to the lowest level, the entire floating power generation system is also more easily disassembled so that it can be disassembled and transported to a new place for secondary use after weather drafts of a certain environment.

Optionally, a surface of the inner floating box 103 connected to the inner upright 200 is a first surface, a surface of the outer floating box 102 connected to the outer upright 210 is a second surface, the inner inclined beam 203 forms a first inclination angle with respect to the first surface, and the outer inclined beam 208 forms a second inclination angle with respect to the second surface, and the first inclination angle and the second inclination angle are the same in size and the same in orientation. In this way, the plurality of stranded wires 209 are more flat and symmetrical when being connected with the outer oblique beams 208 at two sides, so that the problem that the connecting parts are inclined by mistake due to different angles or different orientations is avoided, and the orientation stability of the photovoltaic module 30 is further ensured.

As shown in connection with fig. 1, 3 and 5, optionally, a first reinforcing support 205 may be provided between the long column 2101 and the short column 2102 for reinforcing the long column 2101 and the short column 2102, so that the structure thereof is more stable and the stress is more balanced. The first reinforcing support 205 can improve structural service performance between the long column 2101 and the short column 2102 when subjected to severe weather and storms, reducing the likelihood of structural failure.

As shown in connection with fig. 1, 4 and 5, optionally, in the structure in which the inner side pillar 200 supports the inner side diagonal member 203, a second reinforcing support member 206 may be further provided, a first end of the second reinforcing support member 206 is connected to the inner side pillar 200, and a second end of the second reinforcing support member 206 is connected to the inner side diagonal member 203. In this way, when the inner side girder 203 is subjected to an external force, the second reinforcement support 206 may further support the inner side girder 203 by means of the inner side column 200, so that the inner side girder 203 is more firmly fixed to the inner side column 200.

The number of the second reinforcing supporters 206 is not particularly limited, and may be one, two, or even three or more, as long as a stability reinforcing structure can be added between the inner diagonal member 203 and the inner upright post 200.

Further, one or two or more second reinforcing supports 206 may be installed between the inner column 200 and the inner buoyancy tank 103, thereby optimizing the connection relationship between the inner column 200 and the inner buoyancy tank 103 and improving the pressure resistance.

Referring to fig. 1 and 5, in some embodiments, optionally, a third reinforcing support 207 may be further disposed between the outer diagonal beam 208 and the outer buoyancy tank 102, and a metal fixing member may be further disposed at a connection between the third reinforcing support 207 and the outer buoyancy tank 102 for fixing. In this way, a triangular stable structure of the outer columns 210, the outer pontoons 102, and the third reinforcing support 207 is formed. Illustratively, as shown in fig. 1, the metal fixing member 204 couples and fixes the outer buoyancy tank 102 and the third reinforcing support member 207, and connects the other end of the third reinforcing support member 207 with the outer diagonal member 208, providing a reliable structure for the overall support.

The metal fixing member 204 couples and fixes the outer buoyancy tank 102 and the third reinforcing support member 207, and the fixing manner is not limited, and may be a rivet, a nested structure, or the like, as long as one end of the third reinforcing support member 207 can be tightly connected to a certain position of the outer buoyancy tank 102.

In addition, a third reinforcing support 207 may be connected between each outer diagonal member 208 and its corresponding outer buoyancy tank 102, or two or more third reinforcing supports 207 may be connected, and the number of the third reinforcing supports is not particularly limited. Thus, a small number of third reinforcement supports 207 may be used in a hydrologic environment with less stormy waves, thereby reducing costs, while in a severe environment with greater stormy waves, the number of third reinforcement supports 207 may be increased, thereby increasing system stability and compression resistance.

Further, the utility model provides a photovoltaic power station, which is provided with one or more characteristics of the floating type photovoltaic power generation system, and mainly comprises a bottom platform adopting a buoyancy tank with a cavity structure as an integral system, a supporting frame adopting a coupling mode of upright posts and inclined beams, a stranded wire with prestress for connecting two end assemblies, and the like.

In summary, according to the floating type photovoltaic power generation system provided by the utility model, the problems that a conventional steel frame is easy to break, the number of plastic floating bodies is too large, the cost is too high and the water body environment is influenced in the prior art are solved by using the stranded wires with prestress and using the concrete floating box as a floating component.

Finally, it is further noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or terminal that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or terminal. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article or terminal device comprising the element.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.

The foregoing is merely illustrative of the present utility model, and the present utility model is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present utility model. Therefore, the protection scope of the utility model is subject to the protection scope of the claims.

Claims (10)

1. The floating type photovoltaic power generation system is characterized by comprising a support assembly, a floating assembly and a photovoltaic assembly;

wherein, the support assembly includes: the system comprises a plurality of upright posts, at least two stranded wires and a plurality of oblique beams; the top ends of the upright posts support a plurality of inclined beams, the inclined beams are connected through at least two stranded wires, and the photovoltaic module is supported by the at least two stranded wires;

the floatation assembly includes: a plurality of buoyancy tanks, a plurality of anchor blocks, a plurality of mooring lines; the buoyancy tanks are connected with the anchor blocks through the mooring ropes, and support the upright posts.

2. The floating photovoltaic power generation system of claim 1, wherein the plurality of buoyancy tanks comprises an inner buoyancy tank and an outer buoyancy tank, the inner buoyancy tank being located between at least two of the outer buoyancy tanks;

the outer buoyancy tank is connected with at least two anchor blocks, and the inner buoyancy tank is connected with at least one anchor block.

3. The floating photovoltaic power generation system of claim 2, wherein the plurality of columns includes an inboard column and an outboard column, and the plurality of diagonal beams includes an inboard diagonal beam and an outboard diagonal beam;

the first end of the inner upright post is connected with the inner buoyancy tank, and the second end of the inner upright post is connected with the inner inclined beam; the first end of the outer upright post is connected with the outer buoyancy tank, and the second end of the outer upright post is connected with the outer inclined beam;

the surface of the inner floating box, which is connected with the inner upright post, is a first surface, and the surface of the outer floating box, which is connected with the outer upright post, is a second surface; wherein the inner side inclined beam forms a first inclination angle relative to the first surface, and the outer side inclined beam forms a second inclination angle relative to the second surface; the first inclination angle and the second inclination angle are the same in size and the same in orientation.

4. A floating photovoltaic power generation system according to claim 3 wherein the outer columns comprise short columns, long columns, the short columns having a length less than the length of the long columns, and the inner columns having a length less than the length of the long columns and greater than the length of the short columns.

5. The floating photovoltaic power generation system of claim 4, wherein a first reinforcing support is connected between the long upright and the short upright.

6. The floating photovoltaic power generation system of claim 5, wherein at least two second reinforcement supports are connected between the inner upright and the inner diagonal.

7. The floating photovoltaic power generation system of claim 6, wherein the support assembly further comprises: a metal fixing member, a third reinforcing support member;

the metal fixing piece is used for fixing the joint of the first end of the third reinforcing support piece and the outer side buoyancy tank, and the second end of the third reinforcing support piece is connected with the outer side inclined beam.

8. The floating photovoltaic power generation system of claim 2, wherein the floating assembly further comprises a plurality of connecting cables;

at least one connecting rope is connected between at least two outer buoyancy tanks, and at least one connecting rope is connected between at least two inner buoyancy tanks.

9. The floating photovoltaic power generation system of claim 1, wherein a plurality of the floating tanks have a cavity structure.

10. A photovoltaic power plant comprising a floating photovoltaic power generation system according to any one of claims 1-9.