CN106143819A - Buoyancy aid pallet and photovoltaic plant waterborne - Google Patents

Abstract

The present invention relates to a kind of buoyancy aid pallet and photovoltaic plant waterborne, described buoyancy aid pallet includes that inside is provided with the half sphere shape of hollow cavity, it is filled with balance weight body inside described half sphere shape, the upper end of described half sphere shape is provided with the described hollow cavity of closing and makes described balance weight body sealant of movement in described hollow cavity, and described sealant is provided with the photovoltaic module support for installation photovoltaic component.The buoyancy aid pallet that described photovoltaic plant waterborne includes multiple series connection and the photovoltaic module being installed on described buoyancy aid pallet.In the present invention, when by External Force Acting, buoyancy aid pallet can balance according to the mobile self regulation of balance weight body and remain that level is floating.

Description

Floating body platform and floating photovoltaic power station

technical field

The invention relates to the field of photovoltaics, in particular to a floating body platform and a photovoltaic power station on water.

Background technique

Solar power generation is a clean, green and renewable energy source. In the context of the depletion of traditional chemical energy sources such as coal, oil, and natural gas, and the increasing environmental pollution, solar power generation has attracted more and more attention. At present, the design and construction of photovoltaic power plants are concentrated on the ground or on the roof. However, building a photovoltaic power station on the ground will greatly increase the operating cost; while building a photovoltaic power station on the roof, due to the limitation of roof area resources and the roof rental fee will also be incurred during the operation of the roof power station, which will increase the cost of electricity. Therefore, both of them hinder the realization of the green energy development goal of grid parity.

my country is a country with large water resources. As far as Yunnan is concerned, according to the "Comprehensive Survey of Land and Resources in Yunnan by Remote Sensing" (Yunnan Provincial Planning Commission, Yunnan Provincial Department of Land and Resources, 2004), the province's water area is 9.0346 million mu, of which: the lake surface is 1.5195 million mu , the water surface of the reservoir is 945,900 mu, and the water surface of the pond is 687,400 mu. The water surface area of the above three items is 3.1528 million mu, or about 2100km2. According to the estimation of using 2% of the water surface area of the above three items and 15m2 of water surface per kilowatt (substations, management, living facilities and other facilities are located on land), about 2.8 million kW of photovoltaic power generation capacity can be built on water. At the same time, the construction of water surface photovoltaic power generation for coal mining subsidence areas is also an effective solution to the problems of road subsidence and fly ash secondary pollution in coal mining goaf areas, and is a good way to utilize coal mining subsidence areas. In addition, the water surface has a cooling effect on the photovoltaic modules, and at the same time, the sunlight can be reused after being reflected by the water surface. Compared with the solar panel installed at the same angle on the roof, it can reduce the loss of power generation and increase the output. Moreover, the water surface power station can inhibit the reproduction of algae to a certain extent, and can improve local water quality problems. Therefore, hydropower stations have broad application prospects. At present, there are mature applications in many countries, such as Japan, India, South Korea, Singapore, the United Kingdom, Norway, the United States, Brazil, and Australia. The construction of such projects in China is also increasing this year.

However, at present, the design of water surface photovoltaics adopts a floating platform structure. The floating platforms are connected vertically and horizontally, and are fixed at the bottom of the pool with anchor bolts. This design is complicated to install, poor in stability, and has high requirements for site selection. It needs waters with a wide area, stable runoff, low wind speed, and small water level changes. It cannot self-adjust and balance when external forces (runoff, wind speed, water level) act Stay level and afloat.

Contents of the invention

Based on this, it is necessary to provide a floating body platform and a photovoltaic power station on water, which can self-adjust and balance when receiving an external force.

A floating body stand, comprising a hemispherical body with a hollow cavity inside, the inside of the hemispherical body is filled with a counterweight, and the upper end of the hemispherical body is provided with a device that closes the hollow cavity so that the counterweight is in the hollow cavity A sealing layer that moves in the body, on which a photovoltaic module support for installing photovoltaic modules is installed.

In one of the embodiments, the photovoltaic module support includes a low support column and a high support column, and both the low support column and the high support column include legs fixed on the sealing layer, and the legs are A connecting rod that can slide up and down along the legs is connected, and a rotating body that can freely adjust the angle with the horizontal direction is installed on the connecting rod. The movement of the rotating body moves the planar support plate.

In one embodiment, the planar support plate includes an upper planar plate for supporting and fixing the photovoltaic module and a lower planar plate fixed on the rotating body.

In one of the embodiments, the inner bottom of the hemispherical body is provided with a spherical segment that fits the inner bottom of the hemispherical body.

In one embodiment, the weight of the hemispherical body filled with the counterweight is 3 to 10 times the weight of the photovoltaic module.

In one of the embodiments, the surface of the hemispherical body is concave-convex.

In one embodiment, the weight body is a sphere with a diameter of 2 cm.

The hemispherical body of the above-mentioned floating body platform is filled with a counterweight body. When an external force is applied, the floating body platform can self-adjust and balance according to the movement of the counterweight body in its inner hollow cavity to maintain horizontal floating.

A photovoltaic power station on water, comprising a plurality of floating body platforms as described above connected in series and photovoltaic modules installed on the floating body platforms.

In one of the embodiments, the floating body platforms are connected in series through universal connectors.

In the above water photovoltaic power station, the inside of the hemispherical body of the floating body platform is filled with counterweights. When an external force is applied, the floating body platform can self-adjust and balance according to the movement of the counterweight body in its internal hollow cavity and always maintain horizontal floating.

Description of drawings

Fig. 1 is a side view of an embodiment of a floating body platform;

Fig. 2 is a connection schematic diagram of an embodiment of a floating photovoltaic power station;

FIG. 3 is a schematic structural diagram of the universal connector in FIG. 2 .

detailed description

In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

As shown in Figure 1, the floating body platform of an embodiment includes a hemispherical body 110 with a hollow cavity inside. The sealing layer 130 moves in the hollow cavity, and the photovoltaic module support 140 for installing the photovoltaic module 150 is installed on the sealing layer 130 .

The hemispherical body of the above-mentioned floating body platform is filled with a counterweight body. When an external force is applied, the floating body platform can self-adjust and balance according to the movement of the counterweight body in its inner hollow cavity to maintain horizontal floating.

As shown in FIG. 1 , the photovoltaic module support 140 includes a low support column 141 and a high support column 142. Both the low support column 141 and the high support column 142 include a leg 143 fixed on the sealing layer 130. The leg 143 is connected with a The connecting rod 144 that slides up and down along the leg 143 is installed with a rotating body 145 that can freely adjust the angle with the horizontal direction. The rotating body 145 is connected to support the photovoltaic module 150 and can move with the rotating body 145 And the plane support plate 146 that moves. The planar support plate 146 includes an upper planar plate 1461 for supporting and fixing the photovoltaic module 150 and a lower planar plate 1462 fixed on the rotating body 145 . The upper plane board 1461 and the lower plane board 1462 can be fixed by connecting boards and the like.

In order to ensure the stability of fixing the photovoltaic assembly 150 , the photovoltaic assembly 150 is provided with a fixing pressure block 151 for fixing the photovoltaic assembly 150 on the upper plane plate 1461 . The fixed pressing block 151 can be fixed together with the upper plane plate 1461 by screws.

In order to ensure that under the action of external force, the floating body platform can always maintain horizontal floating according to the movement and self-adjustment balance of the counterweight body 120. The counterweight body 120 is a stainless steel spherical body, and the weight of the bottom of the hemispherical body 110 filled with the counterweight body 120 is many times that of the photovoltaic module. 150 weights, such as 3 to 10 times and so on. In this embodiment, a spherical segment 170 that fits the inner bottom of the hemispherical body 110 can also be provided on the inner bottom of the hemispherical body 110 , and the weight body 120 is located on the upper surface of the spherical segment 170 . In this embodiment, the counterweight body 120 may preferably have a diameter of 2 cm, and the total weight of the filled balls is 50 Kg. The photovoltaic module 150 is preferably a crystalline silicon solar cell module, with a weight of 18 Kg.

In this embodiment, since the floating body platform needs to be irradiated by the sun frequently, the floating body platform should have good anti-ultraviolet, anti-corrosion performance, high density, anti-frost heave, anti-wind and wave and other characteristics. In this embodiment, the platform of the floating body is preferably made of high molecular polyethylene material. In order to improve the light absorption efficiency of the photovoltaic module 150, the preferred material for the surface of the hemispherical body 110 is HDFE polyethylene resin, and the surface is a white convex and concave shape, such as a white pyramid, to increase the reflection and refraction of light and improve the photovoltaic module 150. light absorption capacity and increase its power generation.

As shown in FIG. 2 , this embodiment also provides a photovoltaic power station on water, including a plurality of floating body platforms as described above connected in series and photovoltaic modules correspondingly installed on the floating body platforms. Wherein, the hemispherical body 110 is connected in series through the universal connector 160 so that the floating body mounts are connected in series. As shown in Figure 3, the universal connector 160 includes a connecting rod 161, and the two ends of the connecting rod 161 are respectively connected with link balls 162, and the link balls 162 are respectively connected with terminals 163, and the terminals 163 are used to accommodate the link balls 163 and can use The ring body 164 in which the link ball 163 freely rotates and the bolt sheet 165 connected with the ring body 164 . In this embodiment, the universal connector 160 is preferably made of aluminum alloy to resist corrosion, frost heave, and wind and waves. For the convenience of connecting the hemispherical body 110 through the universal connector 160, the bolt piece 165 is provided with a screw hole 166, and the side end of the hemispherical body 110 is provided with a bolt buckle 111 that can match the bolt piece 165, the bolt piece 165 and the bolt buckle 111 The screw holes 166 are fixedly connected by bolts. Thus, through the universal connector 160, a plurality of floating body platforms can be circulated and connected in series to form a network, so that the floating body platform can independently operate according to the principle of the lowest potential energy due to the action of the universal connector 160 under the action of external force. Self-adjusting balance without being affected by adjacent floating body platforms.

For different power generation areas, in order to ensure the optimal reception of light, photovoltaic modules usually need to have a certain angle with the horizontal direction. In this embodiment, the horizontal angle formed by the photovoltaic module 150 through the photovoltaic module support 140 is a predetermined value calculated according to the longitude and latitude of the area where it is located.

The technical features of the above-mentioned embodiments can be combined arbitrarily. To make the description concise, all possible combinations of the technical features in the above-mentioned embodiments are not described. However, as long as there is no contradiction in the combination of these technical features, should be considered as within the scope of this specification.

The above-mentioned embodiments only express several implementation modes of the present invention, and the descriptions thereof are relatively specific and detailed, but should not be construed as limiting the patent scope of the invention. It should be pointed out that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent for the present invention should be based on the appended claims.

Claims (9)

1. a buoyancy aid pallet, it is characterised in that include that inside is provided with the half sphere shape of hollow cavity, inside described half sphere shape Being filled with balance weight body, the upper end of described half sphere shape is provided with the described hollow cavity of closing makes described balance weight body at described cavity The sealant of internal movement, described sealant is provided with the photovoltaic module support for installation photovoltaic component.

Buoyancy aid pallet the most according to claim 1, it is characterised in that described photovoltaic module support includes that low support column is with high Support column, described low support column and described high support column all include the supporting leg being fixed on described sealant, described supporting leg connect It is connected to the connecting rod that can slide up and down along described supporting leg, described connecting rod is provided with and can freely adjust the angle with horizontal direction Rotary body, described rotary body connects and has for supporting described photovoltaic module and can the movement with the movement of described rotary body Plane support plate.

Buoyancy aid pallet the most according to claim 2, it is characterised in that described plane support plate includes for supporting fixing described The upper surface plate of photovoltaic module and the lower plane plate being fixed on described rotary body.

Buoyancy aid pallet the most according to claim 1, it is characterised in that the inner bottom part of described half sphere shape is arranged and described half The segment that the inner bottom part of spheroplast suits mutually.

Buoyancy aid pallet the most according to claim 1, it is characterised in that described in be filled with the weight of half sphere shape of balance weight body The weight of 3 to 10 times of described photovoltaic modulies.

Buoyancy aid pallet the most according to claim 1, it is characterised in that the surface of described half sphere shape is convex-concave shape.

Buoyancy aid pallet the most according to claim 1, it is characterised in that described balance weight body is the spheroid of a diameter of 2 centimetres.

8. a photovoltaic plant waterborne, it is characterised in that include the floating as described in any one of claim 1-6 of multiple series connection Body pallet and the photovoltaic module being installed on described buoyancy aid pallet.

Photovoltaic plant waterborne the most according to claim 8, it is characterised in that described buoyancy aid pallet passes through joint coupling string Connection.