CN219029713U

CN219029713U - Water surface photovoltaic system adopting chordal floating body structure

Info

Publication number: CN219029713U
Application number: CN202320084649.0U
Authority: CN
Inventors: 张俊祥; 刘小林; 张伟; 王道金
Original assignee: TBEA Xinjiang Sunoasis Co Ltd
Current assignee: TBEA Xinjiang Sunoasis Co Ltd
Priority date: 2023-01-29
Filing date: 2023-01-29
Publication date: 2023-05-16
Anticipated expiration: 2033-01-29

Abstract

The utility model belongs to the technical field of photovoltaic power generation on water, and discloses a water surface photovoltaic system adopting a string rope type floating body structure, which comprises a steel ring, wherein the steel ring is connected with space strings, an inner string is connected with an outer string through an upper string to form an annular supporting system, two crossed supporting strings are arranged on the inner string, a plurality of parallel flexible strings are arranged on the inner string, a plurality of flexible strings are arranged on the supporting strings, a buoyancy tank is arranged at the crossed position of the lower circumference of the steel ring and the two supporting strings, and a photovoltaic assembly is arranged on the plurality of flexible strings. The support system of the utility model adopts flexible inhaul cables, greatly reduces the steel consumption, adopts standardized components for on-site assembly, avoids complex bracket installation process, and reduces the cost and the construction period.

Description

Water surface photovoltaic system adopting chordal floating body structure

Technical Field

The utility model belongs to the technical field of photovoltaic power generation on water, and particularly relates to a water surface photovoltaic system adopting a string type floating body structure.

Background

In recent years, with the continuous development of the photovoltaic industry, the lack of land resources has become an important reason for limiting the development of land photovoltaic power stations. The water surface floating type photovoltaic power station is characterized in that a photovoltaic module is arranged on a floating body, and the photovoltaic module floats on the water surface to realize power generation, can be built on water of a pool, a reservoir, a river and the like, does not occupy land resources, and is a good choice for developing photovoltaic projects in countries and regions with dense population, limited land resources and rich water resources. In addition, compared with land photovoltaics, the generating capacity of the water surface photovoltaic power station can be improved by 5% -10%, and the generating efficiency is high. The floating type water photovoltaic has the advantages of not occupying land, reducing water evaporation and the like, and has wide application prospect.

The existing water photovoltaic system adopts a fan-shaped floating plate to set a photovoltaic module. For example, the Chinese patent with the publication number of CN115092333AA discloses a water photovoltaic system and an array method thereof, and annular wave-resistant slopes are arranged around a floating photovoltaic device, so that the large fluctuation of a photovoltaic floating plate caused by fluctuation of the water surface in all directions can be effectively weakened, the large fluctuation of the water surface can be absorbed through the lifting of a piston pontoon, and the safety of the water surface floating photovoltaic module is effectively ensured. Although the scheme can meet the safety requirement of the assembly, the problems of large steel consumption and high cost exist. In addition, the sector floating plate needs to do intermittent rotary motion around the axle center of the connecting disc, a plurality of buffer grooves which are penetrated up and down are arranged above the sector floating plate, and piston buoys are arranged in the buffer grooves in a lifting mode, so that the construction process is complex, the workload is large, and the cost and the construction period are increased.

Disclosure of Invention

In order to overcome the defects of the prior art, the utility model aims to provide a water surface photovoltaic system adopting a string type floating body structure, which solves the problems of complex construction procedures and large steel consumption of a fan-shaped floating plate in the prior art.

In order to achieve the above purpose, the utility model is realized by adopting the following technical scheme: the utility model provides an adopt surface of water photovoltaic system of string rope formula body structure, includes the steel loop, and the steel loop is connected with the space chord, and interior guy passes through the upper chord and is connected with outer cable and constitute annular braced system, is equipped with two crisscross support chords on the interior guy, is equipped with many parallel flexible cable on the interior guy, and on many flexible cable located the support chord, steel loop lower week and two support chord crisscross department were equipped with the flotation tank, and photovoltaic module locates on many flexible cable.

Preferably, the connection nodes of the upper chord member, the inner guy cable and the outer guy cable form a plane triangle.

Preferably, the tangent to the support system of the upper chord is 45 °.

Preferably, the space chord member and the plane triangle form a triangular cone.

Preferably, the distance between the buoyancy tank and the flexible inhaul cable is greater than or equal to 0.6m.

Preferably, the height of the buoyancy tank is 1.5m.

Preferably, the flexible cable, the inner cable and the outer cable are made of steel strands.

Preferably, the buoyancy tank is made of high density polyethylene.

Preferably, the space chord, the upper chord, the support chord and the steel ring are made of high strength weather resistant steel.

Compared with the prior art, the utility model has the following beneficial effects: the utility model discloses a water surface photovoltaic system adopting a string type floating body structure, which adopts a floating box and a flexible cable as a floating body foundation of a photovoltaic module, adopts a steel ring and a crisscrossed supporting string rod as a flexible cable peripheral protection structure, and adopts an inner string connected with an outer string through an upper string rod to form a supporting system.

Furthermore, the triangular cone is formed by the space chord members and the plane triangle, so that the stability of the buoyancy tank is better, and a concise and clear force transmission path is formed by the buoyancy tanks which are arranged subsequently.

Further, the buoyancy tank has a certain height from the flexible inhaul cable, can effectively isolate bottom wave rising, and avoids impact of water on the photovoltaic module. The height of the buoyancy tank ensures that the buoyancy tank has enough buoyancy to support the upper structure load, and avoids the erosion of sea waves to the upper structure of the buoyancy tank.

Further, the chord members and the steel rings are made of high-strength weather-resistant steel, can prevent rust and corrosion by seawater, and are high in rigidity.

Drawings

FIG. 1 is a schematic illustration of a cable of the present utility model;

FIG. 2 is a diagram of a support system according to the present utility model;

FIG. 3 is a schematic view of a buoyancy tank according to the present utility model;

FIG. 4 is a layout of a photovoltaic module of the present utility model;

wherein: 1-a flexible guy cable; 2-an inner guy cable; 3-an outer guy cable; 4-space chords; 5-upper chords; 6-supporting chords; 7-a buoyancy tank; 8-a photovoltaic module; 9-steel ring.

Detailed Description

In order that those skilled in the art will better understand the present utility model, a technical solution in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in which it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present utility model without making any inventive effort, shall fall within the scope of the present utility model.

It should be noted that the terms "first," "second," and the like in the description and the claims of the present utility model and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the utility model described herein may be implemented in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

The utility model is described in further detail below with reference to the attached drawing figures:

referring to fig. 1, a water surface photovoltaic system adopting a string type floating body structure comprises a steel ring 9, wherein the steel ring 9 is connected with a space chord 4, referring to fig. 2, an inner cable 2 is connected with an outer cable 3 through an upper chord 5 to form an annular supporting system, two crossed supporting chords 6 are arranged on the inner cable 2, a plurality of parallel flexible cables 1 are arranged on the inner cable 2, a plurality of flexible cables 1 are arranged on the supporting chords 6, referring to fig. 3, a buoyancy tank 7 is arranged at the crossing of the lower circumference of the steel ring 9 and the two supporting chords 6, referring to fig. 4, and a photovoltaic module 8 is arranged on the plurality of flexible cables 1.

The utility model provides a water surface photovoltaic system adopting a string type floating body structure, which balances the buoyancy of a buoyancy tank 7 in water with the dead weight of a supporting system and the dead weight of a photovoltaic module 8, and adapts to the deformation caused by waves by using a flexible system lifting system formed by a rigid string and a flexible inhaul cable 1, so that the supporting system can meet the reliable working requirement of the photovoltaic module 8. According to the utility model, standardized components are adopted for on-site assembly, the photovoltaic module 8 is connected with the flexible inhaul cable 1 through bolts, a complex bracket installation process is canceled, the flexible inhaul cable 1 can adapt to structural deformation under the action of ocean waves, and the problems of frame deformation, sealing damage, hidden cracking and the like caused by uneven displacement of module connection points are avoided. The steel ring 9 and the crisscrossed supporting chord 6 are used as peripheral protection structures to avoid deformation of the flexible inhaul cable 1 in a high-wind and high-wave environment, and meanwhile, damage caused by collision of the photovoltaic module 8 arranged above the flexible inhaul cable 1 and floaters is avoided. Under the wave action, the buoyancy tank 7 bottom can produce certain deformation along with the wave, and flexible cable 1 and crisscross support chord member 6 combine together can avoid the body structure to produce deformation, so the deformation of buoyancy tank 7 bottom can not exert an influence to buoyancy tank 7 performance, also can not exert an influence to the photovoltaic module 8 of arranging on flexible cable 1.

The above is only for illustrating the technical idea of the present utility model, and the protection scope of the present utility model is not limited by this, and any modification made on the basis of the technical scheme according to the technical idea of the present utility model falls within the protection scope of the claims of the present utility model.

Claims

1. The utility model provides an adopt surface of water photovoltaic system of string rope formula body structure, a serial communication port, including steel loop (9), steel loop (9) are connected with space chord member (4), interior guy (2) are connected through last chord member (5) and outer guy (3) and are formed annular braced system, be equipped with two crisscross support chord members (6) on interior guy (2), be equipped with many parallel flexible cable (1) on interior guy (2), on support chord member (6) are located to many flexible cable (1), steel loop (9) next week and two support chord members (6) cross department are equipped with buoyancy tank (7), photovoltaic module (8) are located on many flexible cable (1).

2. A surface photovoltaic system employing a chord type floating body structure according to claim 1, wherein the connection nodes of the upper chord (5), the inner guy (2) and the outer guy (3) constitute a plane triangle.

3. A surface photovoltaic system employing a chordal floating structure according to claim 1, characterized in that the tangent to the upper chord (5) and the support system is 45 °.

4. A surface photovoltaic system employing a chord type floating body structure according to claim 2, wherein the space chord (4) and the plane triangle form a triangular pyramid.

5. The water surface photovoltaic system adopting the string type floating body structure according to claim 1, wherein the distance from the buoyancy tank (7) to the flexible inhaul cable (1) is more than or equal to 0.6m.

6. A surface photovoltaic system employing a chordal floating structure according to claim 1, characterized in that the buoyancy tank (7) has a height of 1.5m.

7. A surface photovoltaic system employing a chordal floating structure according to claim 1, characterized in that the flexible guy wires (1), inner guy wires (2) and outer guy wires (3) are made of steel strands.

8. A surface photovoltaic system employing a chordal floating structure according to claim 1, characterized in that the buoyancy tank (7) is made of high density polyethylene.

9. A surface photovoltaic system employing a chordal floating structure according to claim 1, characterized in that the space chord (4), upper chord (5), support chord (6) and steel ring (9) are made of high strength weathering steel.