CN216401699U

CN216401699U - Marine floating type photovoltaic system adopting flexible structure

Info

Publication number: CN216401699U
Application number: CN202122676506.2U
Authority: CN
Inventors: 钮新强; 刘玉亮; 刘海波; 段斐; 苏毅; 喻飞; 张涛; 袁博; 段偲默; 肖固城
Original assignee: Changjiang Institute of Survey Planning Design and Research Co Ltd
Current assignee: Changjiang Institute of Survey Planning Design and Research Co Ltd
Priority date: 2021-11-03
Filing date: 2021-11-03
Publication date: 2022-04-29
Anticipated expiration: 2031-11-03

Abstract

The utility model discloses a marine floating type photovoltaic system adopting a flexible structure, which comprises a photovoltaic component and a flexible floating body foundation, wherein the upper surface of the flexible floating body foundation is fixedly provided with the photovoltaic component and can float on the sea surface, the outer side of the flexible floating body foundation is annularly provided with an annular truss, the outer side of the annular truss is provided with an annular floating body which can enable the annular truss to float on the sea surface, and the annular truss is connected with an anchoring body correspondingly arranged on the sea bottom through a plurality of mooring cables. The utility model has the characteristics of high buoyancy, good stability, less steel consumption, low cost and strong wave resistance.

Description

Marine floating type photovoltaic system adopting flexible structure

Technical Field

The utility model relates to the technical field of offshore photovoltaic power generation, in particular to an offshore floating type photovoltaic system adopting a flexible structure.

Background

With the development of the photovoltaic industry in recent years, the land resources available for building photovoltaic power stations are increasingly tense. The traditional water floating type photovoltaic power generation system is arranged in inland waters such as lakes, rivers, reservoirs, fish ponds and the like and is limited by the national definition of ecological red lines, lake protection records, surface water source places of drinking water and the like, and in addition, the arrangement area of a square matrix is limited due to the irregularity of the inland waters. Offshore photovoltaic is arranged on the ocean, the water area is wide and not limited, the power consumption capacity of coastal cities is high, and the offshore photovoltaic can directly supply power to a main load area without consumption problems. Under the background of 'carbon peak and carbon neutralization', the new ocean energy is inevitably developed explosively.

The existing offshore photovoltaic scheme adopts a rigid floating body foundation for resisting acting force of sea waves. For example, the Chinese patent with publication number CN110450916A discloses a wind and wave resistant floating type offshore photovoltaic power generation platform, which uses a platform truss, a floater and a strut to provide support for photovoltaic components to work on the sea. The utility model discloses an on adopting the steel truss structure to raise photovoltaic module the surface of water, overall structure needs to satisfy intensity big, prevents the requirement of structural deformation. Although the proposal can meet the design requirements, the proposal has the problems of large amount of structural steel and high cost. In addition, the mooring adopts a pile foundation form, and pile driving equipment is required for construction. The used area of photovoltaic power plant is great, and the pile is in large quantity, and work load is great, and can have certain influence to marine environment.

Compared with inland overwater photovoltaic power stations, the offshore photovoltaic power station has the characteristics of severe wind and wave conditions, high salt fog, easiness in corrosion and the like, and is greatly different from the ordinary overwater photovoltaic power stations. In order to promote the development of the offshore photovoltaic industry, the development of a novel offshore photovoltaic system with low cost and safety has important significance for promoting the green development of China.

Based on the situation, the utility model provides a marine floating type photovoltaic system adopting a flexible structure, and the problems can be effectively solved.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects in the prior art, the utility model aims to provide a floating type photovoltaic system on the sea with a flexible structure. The utility model has the characteristics of high buoyancy, good stability, less steel consumption, low cost and strong wave resistance.

In order to solve the technical problems, the utility model is realized by the following technical scheme:

the utility model provides an adopt flexible construction's marine showy formula photovoltaic system, includes that photovoltaic module and upper surface set firmly photovoltaic module and can float in the flexible body basis on the sea, flexible body basis outside hoop is equipped with the annular truss, the annular truss outside is equipped with makes the annular truss can float in the annular body on the sea, the annular truss is connected with the anchor body of arranging in the seabed through a plurality of mooring lines.

Preferably, the flexible floating body foundation comprises a flexible air cushion and a plurality of connecting ropes distributed around the flexible air cushion and used for connecting the flexible air cushion and the annular truss.

It is further preferable that an annular gap is formed between the outer side wall of the flexible air cushion and the annular truss, each connecting rope is circumferentially distributed in the annular gap at intervals, and each connecting rope is in a tensioned state.

It is still further preferred that the top of the ring truss is connected with the connecting rope, and the top of the ring truss is higher than the whole height of the flexible air cushion.

It is further preferred that the interior of the flexible air mattress is divided into a plurality of independent air compartments.

It is further preferred that the flexible air cushion and the annular truss are both circular in configuration.

It is further preferred that the flexible air cushion is made of a waterproof and airtight material.

Preferably, the annular floating body comprises an outer annular floating pipe and an inner annular floating pipe which is fixedly arranged at the radial inner side of the outer annular floating pipe side by side.

Preferably, the annular truss comprises a plurality of layers of horizontal trusses and a plurality of vertical trusses fixedly connected with the horizontal trusses of the layers.

Compared with the prior art, the utility model has the following advantages and beneficial effects:

adopt flexible air cushion of inflatable as photovoltaic module's body basis, totally isolated bottom wave rises, avoids the sea water to submerge the electrical equipment at flexible air cushion top. Under the condition that inside atmospheric pressure satisfies, the operation and maintenance personnel walking can be supplied to flexible air cushion top, make things convenient for marine operation and maintenance to air cushion top area is big, and the security is better.

Compared with a rigid structure, the flexible air cushion does not need to additionally enhance the rigidity of the whole structure and is used for avoiding the deformation of the floating body structure. Under the action of waves, the bottom of the flexible air cushion can generate certain deformation along with the waves, and the deformation does not influence the performance of the flexible air cushion. Under the buffering of internal gas, the deformation of the top surface of the flexible air cushion is smaller relative to the deformation of the bottom of the flexible air cushion, and the photovoltaic module is not affected.

The annular truss structure is used as a flexible air cushion peripheral protection structure, and damage caused by collision of the flexible air cushion and a floater is avoided. The truss is made of steel, the structural rigidity is high, the annular truss is not used as a main stress structure for supporting the photovoltaic module, and the steel quantity for construction is saved.

The mooring cable is connected to the annular truss instead of the flexible air cushion, so that damage caused by overlarge deformation of the flexible air cushion due to the tensile force of the mooring cable in a strong wind and strong wave environment is avoided. The annular truss can bear large limit load, has small deformation and is not easy to damage.

Drawings

FIG. 1 is a schematic diagram of the overall structure of a flexible structure floating-on-sea photovoltaic system of the present invention;

FIG. 2 is a schematic view of the anchoring structure of the offshore floating photovoltaic system of the present invention;

FIG. 3 is a schematic view of the flexible cushion and photovoltaic module assembly of the present invention;

FIG. 4 is a schematic view of the assembled structure of the flexible air mattress and the connecting rope of the present invention;

FIG. 5 is a schematic view of an assembly structure of the annular truss and the annular buoyant body of the present invention;

FIG. 6 is a schematic view of the annular truss structure of the present invention;

figure 7 is a schematic view of the annular float structure of the present invention.

Reference numerals: 1-photovoltaic module, 2-flexible floating body foundation, 3-annular truss, 4-annular floating body, 5-mooring cable, 6-anchoring body, 2.1-flexible air cushion, 2.2-connecting rope, 3.1-horizontal truss, 3.2-vertical truss, 4.1-outer annular floating pipe and 4.2-inner annular floating pipe.

Detailed Description

In order that those skilled in the art will better understand the technical solutions of the present invention, the following description of the preferred embodiments of the present invention is provided in conjunction with specific examples, but it should be understood that the drawings are for illustrative purposes only and should not be construed as limiting the patent; for the purpose of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted. The positional relationships depicted in the drawings are for illustrative purposes only and are not to be construed as limiting the present patent.

As shown in fig. 1 and 2, the utility model relates to a floating photovoltaic system on the sea with a flexible structure, and relates to the field of photovoltaic power generation on the sea. The system comprises a photovoltaic component 1, a flexible floating body foundation 2, an annular truss 3, an annular floating body 4, a mooring cable 5 and an anchoring body 6. A plurality of photovoltaic modules 1 form an array shape according to design requirements and are tiled on the flexible floating body foundation 2. The top of the mooring cable 5 is fixed on the annular truss 3, and the bottom is connected with the anchoring body 6. The anchor 6 is for helping whole marine floating photovoltaic system to resist the effort of wind, unrestrained, class, avoids marine floating photovoltaic system to produce too big skew under the influence of environmental action power. The anchoring body can adopt the structural forms of an anchoring body, an anchor pile or a ship anchor and the like. The mooring lines 5 can be made of anchor chains, steel wire ropes, composite materials and the like.

As shown in fig. 3, the photovoltaic module 1 is tiled on the flexible floating body foundation 2, and a photovoltaic array is formed according to the shape of the flexible floating body foundation 2 and the connection scheme of the electrical circuit. In order to avoid the photovoltaic module to bear the great wind load and lead to the photovoltaic module 1 to drop and the destruction of flexible body basis 2, the angle of inclination of photovoltaic module 1 is 0. The industrial glue is pasted on the back of the photovoltaic module 1 and is directly connected with the flexible air cushion 2.1, or a support is installed on the surface of the top of the flexible air cushion 2.1, and the photovoltaic module is fixed on the support. The inside air support photovoltaic module 1 that is full of during normal work of flexible air cushion 2.1, air cushion inner structure divide into a plurality of independent air tanks, and when the surface was impaired, only single air tank was impaired loses the body, avoids whole flexible air cushion 2.1 to become invalid. The bottom of the flexible air cushion 2.1 is in contact with the water surface, the top of the flexible air cushion is higher than the water surface, and the buoyancy of the flexible air cushion is larger than the gravity of the flexible air cushion and the gravity of the photovoltaic module 1. The flexible air cushion 2.1 can be made of waterproof and airtight material, such as rubber or composite material. The top and the bottom of the flexible air cushion 2.1 are properly reinforced to prevent the bottom from being damaged by impact or friction, and the reinforced top structure is also beneficial to personnel to operate and maintain and support the photovoltaic module 1. During operation of the offshore floating power station, the flexible air cushion 2.1 needs to be inflated towards the inside of the power station by adopting an air blower at variable time, the angle of the photovoltaic module can be kept horizontal by keeping the internal air pressure, and the problems that the air leakage causes the internal air pressure of the air cushion to be insufficient, the photovoltaic array collapses, the floating body is not enough and the like are avoided. In the wave environment, flexible air cushion 2.1 produces certain deformation along with the wave shape under the effect of wave load, because whole air cushion adopts flexible material, this kind of deformation does not produce the overall structure of air cushion and destroys for flexible air cushion 2.1 can normally work in great wave environment.

As shown in fig. 4, connecting ropes 2.2 are evenly arranged around the flexible air cushion 2.1, and the connecting ropes 2.2 are connected with the ring-shaped truss 3, and the connecting ropes can be steel wire ropes, anchor chains or composite materials. The contact part of the flexible air cushion 2.1 and the connecting rope 2.2 takes reinforcement measures to avoid the damage of the flexible air cushion. Under the static condition without wind, wave and flow, the flexible air cushion 2.1 and the annular truss 3 are in a relatively balanced state, and the connecting ropes 2.2 are uniformly stressed. In wind, wave and flow environments, the flexible air cushion 2.1 is large in size, and the load bearing area is larger than that of the annular truss 3, so that the flexible air cushion 2.1 is large in environmental load and violent in movement. When the flexible air cushion 2.1 generates a direction displacement trend, the connecting ropes 2.2 in the corresponding direction can transmit force to the annular truss 3, so that the annular truss 3 and the flexible air cushion 2.1 keep relative positions and do not collide, and the photovoltaic module 1 and the electrical equipment are prevented from falling off or being damaged in frequent collision.

As shown in fig. 5, the annular buoyant body 4 is fixed to the outer periphery of the annular truss 3. The annular buoyant body 4 provides buoyancy to the annular truss frame 3 so that both float in the water. The whole buoyancy of the annular floating body 4 is larger than the gravity of the annular truss 3, and the water surface is positioned in the middle of the annular floating body 4. The annular floating body is connected with the annular truss together to provide buoyancy for the annular truss, so that the top of the annular truss is higher than that of the flexible air cushion, and the connecting rope is in a tensioning state. When the annular truss 3 floats up and down in the waves, the annular floating body 4 has enough buoyancy to enable the annular truss 3 to restore to the original balance position, and the connection mode of the annular floating body 4 and the annular truss 3 can be rigid fixation in a snap-in mode or flexible connection by adopting ropes.

As shown in fig. 6, the ring truss 3 is formed by welding the horizontal truss 3.1 and the vertical truss 3.2 into a whole, and the truss material is steel. The top of the horizontal truss 3.1 is used for fastening the connecting rope 2.2, and the bottom of the horizontal truss 3.2 is used for connecting the mooring cable 5. The vertical girders 3.2 assemble 3 horizontal girders 3 into one whole and transfer the load.

As shown in fig. 7, the annular floating body 4 is divided into an outer annular floating pipe 4.1 and an inner annular floating pipe 4.2, which can be fixed by a buckle or a binding form. The side-by-side floating pipes can provide a standing place for operation and maintenance personnel, and the surrounding conditions of the flexible air cushion 2.1 are convenient to check and maintain. The annular floating bodies can be made of high-density polyethylene materials and are spliced by a hot-melting welding process.

The foregoing is merely a preferred embodiment of the present invention, but the present invention is not limited to the specific embodiments described above. Those skilled in the art should appreciate that they can readily use the disclosed conception and specific embodiments as a basis for modifying, supplementing or modifying other structures for carrying out the same purposes of the present invention.

Although the present invention is more useful: photovoltaic module 1, flexible body basis 2, annular truss 3, annular body 4, mooring line 5, anchor 6, flexible air cushion 2.1, connecting rope 2.2, horizontal truss 3.1, vertical truss 3.2, outer annular flotation tube 4.1, interior annular flotation tube 4.2 and other terms, but can not exclude the possibility that uses other terms. These terms are used merely to more conveniently describe and explain the nature of the present invention and they are to be interpreted as any additional limitation which is not in accordance with the spirit of the present invention.

According to the description of the utility model and the attached drawings, a person skilled in the art can easily make or use the offshore floating photovoltaic system of the utility model with a flexible structure and can produce the positive effects recorded in the utility model.

Unless otherwise specified, in the present invention, if there is an orientation or positional relationship indicated by terms of "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., based on the orientation or positional relationship shown in the drawings, it is only for convenience of describing the present invention and simplifying the description, rather than to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore, the terms describing orientation or positional relationship in the present invention are for illustrative purposes only, and should not be construed as limiting the present patent, specific meanings of the above terms can be understood by those of ordinary skill in the art in light of the specific circumstances in conjunction with the accompanying drawings.

Unless expressly stated or limited otherwise, the terms "disposed," "connected," and "connected" are used broadly and encompass, for example, being fixedly connected, detachably connected, or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and all simple modifications and equivalent variations of the above embodiments according to the technical spirit of the present invention are included in the scope of the present invention.

Claims

1. The utility model provides an adopt flexible construction's marine floating photovoltaic system which characterized in that: set firmly photovoltaic module (1) and can float in the flexible body basis (2) on the sea including photovoltaic module (1) and upper surface, flexible body basis (2) outside hoop is equipped with annular truss (3), annular truss (3) outside is equipped with and makes annular truss (3) can float in annular body (4) on the sea, annular truss (3) are connected in the anchor body (6) of submarine through a plurality of mooring lines (5) and correspondence.

2. The offshore floating photovoltaic system with flexible structure of claim 1, wherein: the flexible floating body foundation (2) comprises a flexible air cushion (2.1) and a plurality of connecting ropes (2.2) distributed around the flexible air cushion (2.1) and used for connecting the flexible air cushion (2.1) and the annular truss (3).

3. The offshore floating photovoltaic system with flexible structure of claim 2, wherein: an annular gap is formed between the outer side wall of the flexible air cushion (2.1) and the annular truss (3), the connecting ropes (2.2) are distributed in the annular gap at intervals in the circumferential direction, and the connecting ropes (2.2) are in a tensioning state.

4. The offshore floating photovoltaic system with flexible structure of claim 3, wherein: the top of the annular truss (3) is connected with the connecting rope (2.2), and the top of the annular truss (3) is higher than the whole height of the flexible air cushion (2.1).

5. The offshore floating photovoltaic system with flexible structure of claim 2, wherein: the interior of the flexible air cushion (2.1) is divided into a plurality of independent air chambers.

6. The offshore floating photovoltaic system with flexible structure of claim 2, wherein: the flexible air cushion (2.1) and the annular truss (3) are both of circular structures.

7. The offshore floating photovoltaic system with flexible structure of claim 2, wherein: the flexible air cushion (2.1) is made of a sealed waterproof and airtight material.

8. The offshore floating photovoltaic system with flexible structure of claim 1, wherein: the annular floating body (4) comprises an outer annular floating pipe (4.1) and inner annular floating pipes (4.2) which are fixedly arranged on the radial inner side of the outer annular floating pipe (4.1) side by side.

9. The offshore floating photovoltaic system with flexible structure of claim 1, wherein: the annular truss (3) comprises a plurality of layers of horizontal trusses (3.1) and a plurality of vertical trusses (3.2) fixedly connected with the horizontal trusses (3.1) of each layer.