WO2024159511A1

WO2024159511A1 - Integrated assembly-type pontoon and floating photovoltaic platform

Info

Publication number: WO2024159511A1
Application number: PCT/CN2023/074363
Authority: WO
Inventors: 刘辉; 胡绍亮; 申磊; 李晓丽; 赵明强
Original assignee: 一道新能源科技股份有限公司
Priority date: 2023-02-03
Filing date: 2023-02-03
Publication date: 2024-08-08

Abstract

Provided are an integrated assembly-type pontoon and a floating photovoltaic platform, which relate to the technical field of photovoltaic power generation. The integrated assembly-type pontoon comprises a pontoon main body (10), which comprises a bottom plate (101), side plates (102) and a top plate (103), wherein the bottom plate (101) and the top plate (103) are arranged opposite each other and are connected by means of the side plates (102); and the top plate (103) is provided with a mounting recess for accommodating a photovoltaic module (20). The mounting recess in the top plate (103) is used to replace a traditional photovoltaic bracket, and stable assembly can be realized simply by embedding the photovoltaic module (20) into the mounting recess, such that the acting force of wind and wave loads on the photovoltaic module (20) is reduced. Moreover, the center of gravity of the whole pontoon system is lowered, and thus the over-turning resistance capability of same is improved. In addition, the photovoltaic module (20) itself replaces part of the top plate (103) of the pontoon, thereby saving on the material utilization amount and reducing the production cost.

Description

Integrated assembled pontoon and water photovoltaic platform

Technical Field

The present invention relates to the technical field of photovoltaic power generation, and in particular to an integrated assembled buoyancy box and an above-water photovoltaic platform.

Background Art

As a clean, pollution-free, renewable energy source, solar energy is becoming more and more popular. Water photovoltaic power stations use water-based platforms to connect photovoltaic modules in series and float on the water surface to generate electricity. Since water photovoltaic power stations do not need to occupy land resources, they have become a new development direction in the field of photovoltaic power generation.

In the prior art, when constructing a photovoltaic power station on the water surface, it is usually necessary to use a rigid bracket to fix the photovoltaic components on the floating box on the water surface.

In the conventional photovoltaic module installation method, the photovoltaic module and the water pontoon are connected by a rigid bracket, which increases the contact surface between the photovoltaic module and the wind and waves, making the overall stability of the pontoon system poor.

Summary of the invention

The present invention provides an integrated assembled pontoon and a water photovoltaic platform, aiming to solve the problem in the prior art that a rigid bracket is used to connect the photovoltaic module and the water pontoon, which increases the contact surface between the photovoltaic module and the wind and waves, resulting in poor overall stability of the pontoon system.

In a first aspect, an embodiment of the present invention provides an integrated assembled pontoon, comprising: a pontoon body;

The pontoon body includes a bottom plate, a side plate and a top plate, wherein the bottom plate and the top plate are arranged opposite to each other and connected by the side plates;

The top plate is provided with a mounting groove, and the mounting groove is used to accommodate a photovoltaic component.

Optionally, a fixing frame is provided on the peripheral side and/or the bottom of the installation groove, and the fixing frame is used to fix the photovoltaic component.

Optionally, a first fixing frame is provided on the periphery of the mounting groove, and the first fixing frame is connected to the side surface and the bottom surface of the mounting groove;

At least one second fixing frame is arranged along the length direction of the installation groove, the second fixing frame is positioned on the bottom surface of the installation groove, and two ends of the second fixing frame are respectively connected to the first fixing frame;

The first fixing frame and the second fixing frame divide the installation slot into at least two photovoltaic component installation positions.

Optionally, the fixing frame includes a mounting portion, and the mounting portion is connected to a side surface or a bottom surface of the mounting groove;

A first wing plate and a second wing plate are extended from one end of the mounting portion away from the bottom surface of the mounting groove, and the first wing plate and the second wing plate are used to fix the photovoltaic component.

Optionally, a drainage groove is provided on the mounting portion.

Optionally, the side plate is provided with at least one pre-embedded mooring fastener, and the pre-embedded mooring fastener is used to connect a mooring device and/or an adjacent integrated assembled pontoon.

Optionally, at least one embedded reinforcement is arranged inside the pontoon body.

Optionally, the embedded mooring fasteners are respectively provided at both ends of the embedded reinforcement, and the embedded mooring fasteners are fixedly connected to the ends of the embedded reinforcement.

Optionally, the top surface and the bottom surface are arranged at an angle.

In a second aspect, an embodiment of the present invention provides an aquatic photovoltaic platform, including: the above-mentioned integrated assembled pontoon.

In an embodiment of the present invention, the integrated assembled pontoon includes a pontoon body; the pontoon body includes a bottom plate, a side plate and a top plate, the bottom plate and the top plate are arranged opposite to each other and connected by the side plates; the top plate is provided with a mounting groove, and the mounting groove is used to accommodate photovoltaic modules. The mounting groove on the top plate is used to replace the traditional photovoltaic bracket, and the photovoltaic module is embedded in the mounting groove to achieve stable assembly, which reduces the force of wind and wave loads on the photovoltaic module, and at the same time reduces the center of gravity of the entire pontoon system, and improves its anti-overturning ability. In addition, the photovoltaic module itself replaces part of the top plate of the pontoon, saving material usage and reducing production costs.

The water photovoltaic platform of the present invention has the same advantages as the integrated assembled pontoon, which will not be described in detail here.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments of the present invention will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative labor.

FIG1 shows one of the main structural diagrams of the buoyancy box according to an embodiment of the present invention;

FIG2 shows a second schematic diagram of the main structure of the buoyancy box according to an embodiment of the present invention;

FIG3 shows a third schematic diagram of the main structure of the buoyancy box according to an embodiment of the present invention;

FIG4 shows a fourth schematic diagram of the main structure of the buoyancy box according to an embodiment of the present invention;

FIG5 shows a cross-sectional view of a fixing frame according to an embodiment of the present invention;

FIG. 6 shows a schematic diagram of the structure of the embedded mooring fastener in an embodiment of the present invention.

Description of the accompanying drawings:

10- pontoon body; 101- bottom plate; 102- side plate; 103- top plate; 20- photovoltaic module; 30- fixing frame; 301- mounting part; 302- first wing plate; 303- second wing plate; 304- drainage trough; 40- embedded mooring fasteners.

Specific embodiments

The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

It should be understood that the references to "one embodiment" or "an embodiment" throughout the specification mean that the specific features, structures, or characteristics associated with the embodiment are included in at least one embodiment of the present invention. Therefore, the references to "in one embodiment" or "in an embodiment" appearing throughout the specification do not necessarily refer to the same embodiment. In addition, these specific features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

1 to 4 , an embodiment of the present invention proposes an integrated assembled pontoon, comprising: a pontoon body 10; the pontoon body 10 comprises a bottom plate 101, a side plate 102 and a top plate 103, the bottom plate 101 and the top plate 103 are arranged opposite to each other and connected by the side plate 102; the top plate 103 is provided with an installation groove, and the installation groove is used to accommodate a photovoltaic module 20.

Specifically, as shown in Figures 1 to 4, the pontoon body 10 can float on the water surface and is used to carry the photovoltaic module 20. It is also the smallest unit of the water photovoltaic platform. The pontoon body 10 can be made of UHPC (Ultra-High Performance Concrete) or HDPE (High Density Polyethylene) with strong anti-corrosion ability. The shape of the pontoon body 10 can be square, hexagonal, elliptical, etc. The pontoon body 10 includes a bottom plate 101, a side plate 102 and a top plate 103. In the embodiment of the present invention, the pontoon body 10 adopts a nearly rectangular parallelepiped structure, including a bottom plate 101, four side plates 102 and a top plate 103. The bottom plate 101, the side plates 102 and the top plate 103 can be prefabricated in one piece. An installation groove is provided on the top plate 103 of the pontoon body 10, and the installation groove is used to accommodate the photovoltaic module 20. The size and shape of the installation groove can be determined according to the size and shape of the photovoltaic module 20. For example, when a rectangular photovoltaic module is used, the shape of the mounting groove may be rectangular.

The photovoltaic module 20 may be a lightweight flexible photovoltaic module, or a frameless single-glass photovoltaic module, or a frameless double-glass photovoltaic module, etc., which is not limited in the embodiment of the present invention.

In an embodiment of the present invention, the integrated assembled pontoon includes a pontoon body 10; the pontoon body 10 includes a bottom plate 101, a side plate 102 and a top plate 103, the bottom plate 101 and the top plate 103 are arranged opposite to each other and connected by the side plate 102; the top plate 103 is provided with a mounting groove, and the mounting groove is used to accommodate the photovoltaic module 20. The mounting groove on the top plate 103 is used to replace the traditional photovoltaic bracket, and the photovoltaic module 20 is embedded in the mounting groove to achieve stable assembly, which reduces the force of wind and wave loads on the photovoltaic module 20, and at the same time reduces the center of gravity of the entire pontoon system, and improves its anti-overturning ability. In addition, the photovoltaic module 20 itself replaces part of the top plate 103 of the pontoon, saving material usage and reducing production costs.

Optionally, referring to FIG. 1 to FIG. 5 , a fixing frame 30 is provided on the peripheral side and/or the bottom of the installation groove, and the fixing frame 30 is used to fix the photovoltaic assembly 20 .

Specifically, as shown in Figures 1 to 5, in order to improve the stability of the photovoltaic module 20 in the installation groove, a fixing frame 30 is provided on the peripheral side and/or the bottom of the installation groove, and the fixing frame 30 and the installation groove can be assembled by welding, bolt connection, etc. The fixing frame 30 can contact the upper surface of the photovoltaic module 20, press the photovoltaic module 20 into the installation groove, and improve the stability of the installation.

Optionally, referring to Figures 1 to 4, a first fixed frame is provided on the surrounding side of the mounting groove, and the first fixed frame is connected to the side and bottom surfaces of the mounting groove; at least one second fixed frame is provided along the length direction of the mounting groove, and the second fixed frame is positioned on the bottom surface of the mounting groove, and both ends of the second fixed frame are respectively connected to the first fixed frame; the first fixed frame and the second fixed frame divide the mounting groove into at least two photovoltaic component 20 installation positions.

Specifically, as shown in Figures 1 to 4, when the photovoltaic component 20 is embedded in the mounting groove, the photovoltaic component 20 will contact the peripheral side of the mounting groove. In order to prevent the photovoltaic component 20 from falling out of the peripheral side of the mounting groove, a first fixing frame is provided on the peripheral side of the mounting groove. The first fixing frame can fix the position where the photovoltaic component 20 contacts the peripheral side of the mounting groove.

At least one second fixing frame is arranged along the length direction of the installation groove, the second fixing frame is positioned at the bottom surface of the installation groove, and both ends of the second fixing frame are respectively connected to the first fixing frame, and the second fixing frame and the installation groove and the first fixing frame can be connected by welding, clamping, bolting, etc. The first fixing frame and the second fixing frame divide the installation groove into at least two photovoltaic module 20 installation positions, each photovoltaic module 20 installation position corresponds to a photovoltaic module 20, and the second fixing frame is used to fix the overlapping position of adjacent photovoltaic modules 20.

Optionally, as shown in Figure 5, the fixing frame 30 includes a mounting portion 301, and the mounting portion 301 is connected to the side or bottom surface of the mounting groove; the mounting portion 301 is provided with a first wing panel 302 and a second wing panel 303 extending from one end away from the bottom surface of the mounting groove, and the first wing panel 302 and the second wing panel 303 are used to fix the photovoltaic component 20.

Specifically, as shown in FIG5 , the mounting portion 301 of the fixing frame 30 is used to fix the fixing frame 30 to the side or bottom surface of the mounting groove, and the mounting portion 301 and the side or bottom surface of the mounting groove may be assembled by welding, bolt connection, clamping, etc. A first wing plate 302 and a second wing plate 303 are extended from one end of the mounting portion 301 away from the bottom surface of the mounting groove, and the first wing plate 302 and the second wing plate 303 are respectively in contact with the upper surface of the photovoltaic module 20, thereby fixing the photovoltaic module 20 in the mounting groove.

Optionally, as shown in FIG. 5 , a drainage groove 304 is provided on the mounting portion 301 .

Specifically, as shown in FIG. 5 , by providing the drainage groove 304 , it is possible to prevent water accumulation in the installation groove from affecting the photovoltaic assembly 20 , and also improve the durability of the pontoon body 10 .

Optionally, referring to FIGS. 1 to 6 , the side plate 102 is provided with at least one pre-embedded mooring fastener 40 , and the pre-embedded mooring fastener 40 is used to connect a mooring device and/or an adjacent integrated assembled pontoon.

Specifically, as shown in Figures 1 to 6, the integrated assembled pontoon needs to be positioned in a fixed area on the water surface with the help of a mooring device, which can be a pile foundation, a mooring anchor, etc. At least one pre-embedded mooring fastener 40 is provided on the side plate 102 of the pontoon body 10, and the pre-embedded mooring fastener 40 is connected to the mooring device through an anchor chain, a rope, etc., so as to fix the pontoon body 10. The pre-embedded mooring fastener 40 can be assembled with the pontoon body 10 in a pre-embedded manner, and has good stability and structural strength. The pre-embedded mooring fastener 40 includes a portion pre-embedded in the pontoon body 10 and a portion exposed to the outside of the pontoon body 10. The portion exposed to the outside of the pontoon body 10 can adopt a hook, a ring, etc. In addition to being connected to the mooring device, the pre-embedded mooring fastener 40 can also be assembled with an adjacent integrated assembled pontoon to improve the stability of the pontoon system.

The number of pre-embedded mooring fasteners 40 can be determined according to the size and shape of the pontoon body 10. For example, in an embodiment of the present invention, the pontoon body 10 includes four side panels 102, and two pre-embedded mooring fasteners 40 can be set on each side panel 102 to make the force more stable.

Optionally, at least one embedded reinforcement is disposed inside the buoyancy tank body 10 .

Specifically, in order to prevent the pontoon body 10 from being damaged or torn by force, at least one embedded rib is provided inside the pontoon body 10. The embedded rib is made of high-strength steel and can enhance the stability of the pontoon body 10. Structural strength: The number and arrangement of the embedded bars can be determined according to the size and shape of the pontoon body 10. For example, if a rectangular pontoon body 10 is used, a plurality of embedded bars can be arranged at intervals along the length and width of the pontoon body 10.

Optionally, the embedded mooring fasteners 40 are respectively provided at both ends of the embedded reinforcement, and the embedded mooring fasteners 40 are fixedly connected to the ends of the embedded reinforcement.

Specifically, there are multiple embedded mooring fasteners 40, and embedded mooring fasteners 40 are respectively provided at both ends of the embedded reinforcement. The embedded mooring fasteners 40 are fixed to the ends of the embedded reinforcement. When the embedded mooring fasteners 40 are pulled by external force, the embedded reinforcement can provide stable support for the embedded mooring fasteners 40, thereby avoiding the problem that the embedded mooring fasteners 40 are subjected to excessive force and cause damage to the buoyancy box body 10, thereby improving the stability and durability of the buoyancy box body 10.

Optionally, referring to FIG. 3 to FIG. 4 , the top surface and the bottom surface are arranged at an angle.

Specifically, as shown in Figures 3 and 4, the top surface and the bottom surface are set at an angle, that is, the top surface and the water surface are at a certain angle, so that the photovoltaic module 20 can receive light. The specific value of the angle can be 5°, 6°, 8°, 10°, 15°, etc., and can be adjusted according to the change law of the solar altitude angle. In order to ensure the stability of the center of gravity of the pontoon body 10, the center of gravity of the pontoon body 10 can also be adjusted by adjusting the thickness of the front side plate 102 and the rear side plate 102 to avoid the problem of overturning and deflection of the pontoon body 10.

The embodiment of the present invention also provides a water photovoltaic platform, including: the above-mentioned integrated assembled pontoon.

Specifically, the floating photovoltaic platform includes a plurality of the above-mentioned integrated assembled pontoons, which can be assembled through flexible or rigid connectors to form a pontoon array. The specific construction steps of the floating photovoltaic platform are as follows:

Step 1: Overall planning of the floating photovoltaic platform project, including total power generation, power generation of a single pontoon, and environmental exploration (including hydrological, meteorological, geological conditions, etc.), so as to determine the most economical number of photovoltaic panels required to be installed on the top of a single pontoon.

Step 2: Based on the preliminary project plan, a design scheme for the pontoon structure is proposed, including the inclination angle of the pontoon top plate 103, the size of the pontoon, the wall thickness of the pontoon, the mooring design of the pontoon, etc.

Step 3: Prefabricate the installation groove of the photovoltaic module 20 according to the design documents of the buoyancy structure and the size of the photovoltaic module 20 for upper installation.

Step 4: Make samples of pontoon structures, installation tanks, mooring devices, etc., and conduct tests and technical tests. Technical optimization.

Step 5: Install the photovoltaic module 20 and the pontoon on land, and leave the connection head. The joint between the groove and the pontoon must ensure its sealing.

Step 6: Installation of pontoon array. After being launched into the water, the pontoons are arranged into a square array according to the design requirements. The connection between the pontoons is divided into flexible connection and rigid connection, which is determined according to the local hydrological and meteorological conditions.

Step 7: Mooring installation. The current mooring methods mainly include anchoring, surface piling, diving piling, etc. The anchor chain form and mooring method can be determined according to the stress obtained by engineering simulation calculation.

Step 8: Acceptance of the project and setting up monitoring and maintenance during operation.

In an embodiment of the present invention, the above-mentioned integrated assembled pontoon is adopted in the above-mentioned photovoltaic platform, and the integrated assembled pontoon includes a pontoon body 10; the pontoon body 10 includes a bottom plate 101, a side plate 102 and a top plate 103, the bottom plate 101 and the top plate 103 are arranged opposite to each other and connected by the side plate 102; the top plate 103 is provided with an installation groove, and the installation groove is used to accommodate the photovoltaic module 20. The installation groove on the top plate 103 is used to replace the traditional photovoltaic bracket, and the photovoltaic module 20 is embedded in the installation groove to achieve stable assembly, which reduces the force of wind and wave loads on the photovoltaic module 20, and at the same time reduces the center of gravity of the entire pontoon system, and improves its anti-overturning ability. In addition, the photovoltaic module 20 itself replaces part of the top plate 103 of the pontoon, saving material usage and reducing production costs.

It should be noted that, in this article, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or device including the element.

The embodiments of the present invention are described above in conjunction with the accompanying drawings, but the present invention is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the enlightenment of the present invention, ordinary technicians in this field can also make many forms without departing from the scope of protection of the purpose of the present invention and the claims, which all fall within the protection of the present invention.

Claims

An integrated assembled pontoon, characterized in that it comprises: a pontoon body;

The pontoon body includes a bottom plate, a side plate and a top plate, wherein the bottom plate and the top plate are arranged opposite to each other and connected by the side plates;

The top plate is provided with a mounting groove, and the mounting groove is used to accommodate a photovoltaic component.
The integrated assembled pontoon according to claim 1 is characterized in that a fixing frame is provided on the peripheral side and/or the bottom of the installation groove, and the fixing frame is used to fix the photovoltaic module.
According to the integrated assembled buoyancy box of claim 2, a first fixing frame is provided on the peripheral side of the installation groove, and the first fixing frame is connected to the side surface and the bottom surface of the installation groove;

At least one second fixing frame is arranged along the length direction of the installation groove, the second fixing frame is positioned on the bottom surface of the installation groove, and two ends of the second fixing frame are respectively connected to the first fixing frame;

The first fixing frame and the second fixing frame divide the installation slot into at least two photovoltaic component installation positions.
The integrated assembled pontoon according to claim 2 is characterized in that the fixing frame comprises a mounting portion, and the mounting portion is connected to a side surface or a bottom surface of the mounting groove;

A first wing plate and a second wing plate are extended from one end of the mounting portion away from the bottom surface of the mounting groove, and the first wing plate and the second wing plate are used to fix the photovoltaic component.
The integrated assembled pontoon according to claim 4 is characterized in that a drainage groove is provided on the mounting portion.
The integrated assembled pontoon according to claim 1 is characterized in that the side plate is provided with at least one embedded mooring fastener, and the embedded mooring fastener is used to connect the mooring device and/or the adjacent integrated assembled pontoon.
The integrated assembled pontoon according to claim 6 is characterized in that the pontoon main At least one embedded reinforcement is arranged inside the body.
The integrated assembled pontoon according to claim 7 is characterized in that the embedded mooring fasteners are respectively provided at both ends of the embedded reinforcement, and the embedded mooring fasteners are fixedly connected to the ends of the embedded reinforcement.
The integrated assembled pontoon according to claim 1 is characterized in that the top surface and the bottom surface are arranged at an angle.
A photovoltaic platform on water, characterized by comprising: the integrated assembled pontoon as described in any one of claims 1-9.