Floating type photovoltaic power generation system

Abstract

The utility model relates to a floating type photovoltaic power generation system, which comprises a photovoltaic assembly and a basic floating platform, the photovoltaic assembly is supported and installed above the basic floating platform, the floating type photovoltaic power generation system further comprises a plurality of expansion floating platforms, a plurality of connecting pieces and an adjusting unit, the plurality of expansion floating platforms are arranged on the outer side of the basic floating platform in a surrounding manner, and the plurality of connecting pieces are arranged on the outer side of the basic floating platform. Each expansion floating platform is fixedly connected with the foundation floating platform through at least one connecting piece, and the adjusting unit is installed below the foundation floating platform. Through cooperative use of the plurality of expansion floating platforms and the adjusting units with the basic floating platform, when the floating type photovoltaic power generation system floats on the water surface for use, the overall gravity center of the floating type photovoltaic power generation system can be subjected to offset adjustment by adjusting the counterweights of different area positions of each expansion floating platform, so that the floating type photovoltaic power generation system can be adjusted more accurately. Therefore, the gravity center of the floating type photovoltaic power generation system can be adjusted to avoid excessive inclination and overturning when the floating type photovoltaic power generation system is affected by severe weather such as strong wind or waves.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaic power generation, in particular to a floating photovoltaic power generation system. Background Art

[0002] With the global energy situation becoming tense and global warming, economic development and people's living environment have been seriously threatened. Countries around the world are increasing the share of clean energy and renewable energy. Solar photovoltaic power generation has become a better energy choice with its significant advantages such as cleanliness, safety and renewableness.

[0003] Traditional ground photovoltaic power generation systems and building roof photovoltaic power generation systems have many drawbacks, which restrict the advancement of the solar photovoltaic power generation industry. Against this background, the floating photovoltaic power generation system on the water surface came into being. The floating photovoltaic power generation system on the water surface uses a supporting float to float the photovoltaic modules on the water surface to generate electricity. The characteristics are that it does not occupy land resources, and the cooling effect of the water body on the photovoltaic modules can increase the power generation. At the same time, the solar panels covering the water surface can reduce the evaporation of the water surface, inhibit the reproduction of algae, and protect water resources.

[0004] For example, a utility model patent with Chinese patent announcement number CN205596054U proposes a floating photovoltaic power generation system on the water surface, which includes a plurality of photovoltaic power generation units, which are interconnected to form a matrix structure, and each photovoltaic power generation unit includes a floating body and a photovoltaic module arranged on the floating body, and the floating body adopts a floating structure with a cavity. This floating photovoltaic power generation system on the water surface has a simple structure, reliable performance, low cost, and convenient and fast installation and maintenance. However, the above-mentioned floating photovoltaic power generation system on the water surface has the following defects during use: when there is severe weather such as strong winds or large waves, the floating photovoltaic power generation system on the water surface is easily affected by external forces to produce a large degree of tilt or even overturning, thereby affecting the stable placement and operation of the floating photovoltaic power generation system on the water surface. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] The utility model provides a floating photovoltaic power generation system, which solves the problem that the existing water surface floating photovoltaic power generation system is easily affected by bad weather and causes a large degree of tilt or even overturning.

[0007] (II) Technical solution

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a floating photovoltaic power generation system, including a photovoltaic component and a basic floating platform, wherein the photovoltaic component support is installed above the basic floating platform, and also includes multiple extension floating platforms, multiple connecting parts and an adjustment unit. The multiple extension floating platforms are arranged around the outside of the basic floating platform, and each of the extension floating platforms is connected and fixed to the basic floating platform by using at least one connecting part. The adjustment unit is installed below the basic floating platform, and the adjustment unit is respectively connected to the multiple extension floating platforms. Two submersible pumps are arranged in the adjustment unit, and the two submersible pumps are respectively used to transport water or pump water into the extension floating platform, so that the adjustment unit adjusts the counterweight of the extension floating platform.

[0009] Preferably, the floating photovoltaic power generation system further comprises at least one inclination sensor, a downwardly recessed inner portion is formed at the top center of the basic floating platform, and the inclination sensor is installed and fixed in the inner portion.

[0010] It is further preferred that the extended floating platform includes a counterweight adjustment box and a cover plate, the counterweight adjustment box is formed with at least one positioning notch on the side facing the basic floating platform, the connecting piece is inserted into the positioning notch on the side close to the counterweight adjustment box and is fixed to the counterweight adjustment box by bolts, an opening is formed on the top of the counterweight adjustment box, the cover plate covers the opening and is fixed to the counterweight adjustment box by clamping, a plurality of partitions are formed in the inner cavity of the counterweight adjustment box, the plurality of partitions divide the inner cavity of the counterweight adjustment box into a plurality of independent cavities, and a connecting hole connected to the adjustment unit is formed on the outer wall of each of the cavities.

[0011] It is further preferred that the regulating unit includes a connecting plate, a diversion chamber, several groups of diversion pipe groups, a water collecting chamber and an extraction pipe, the connecting plate is fixedly connected to the bottom of the basic floating platform, the diversion chamber is fixedly connected to the bottom of the connecting plate, and the diversion chamber has a cavity that can store water, the diversion chamber is connected to each extended floating platform by a group of diversion pipe groups, the water collecting chamber is fixedly connected to the bottom of the diversion chamber, and two submersible pumps of the regulating unit are installed in the water collecting chamber, the input end and output end of one submersible pump are respectively connected to the extraction pipe passing through the outside of the water collecting chamber and the diversion pipe group, the input end and output end of the other submersible pump are respectively connected to the diversion pipe group and passing through the outside of the water collecting chamber, the diversion pipe group includes a number of pipe bodies equal to the number of cavities in the counterweight adjustment box, each of the pipe bodies passes through a connecting hole, and an electromagnetic valve is installed on the pipe body, so that each cavity in the counterweight adjustment box can independently transport or pump water.

[0012] (III) Beneficial effects

[0013] Compared with the prior art, the utility model provides a floating photovoltaic power generation system, which has the following beneficial effects:

[0014] In the utility model, by using a plurality of extended pontoons and adjustment units in conjunction with a basic pontoon, the floating photovoltaic power generation system can adjust the counterweights at different areas of each extended pontoon while floating on the water, thereby causing the center of gravity of the entire floating photovoltaic power generation system to be offset and adjusted. When encountering severe weather such as strong winds or waves, the floating photovoltaic power generation system can adjust its center of gravity to avoid excessive tilting and capsizing. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a structural schematic diagram of a floating photovoltaic power generation system according to an implementation scheme;

[0016] Figure 2 for Figure 1 The structural diagram of the floating photovoltaic power generation system from another angle;

[0017] Figure 3 is a schematic structural diagram of an expansion floating platform according to an implementation scheme;

[0018] Figure 4 Schematic diagram of the structure of the regulating unit according to the implementation scheme.

[0019] In the figure: 10, photovoltaic module; 20, basic floating platform; 30, extended floating platform; 31, counterweight adjustment box; 311, positioning notch; 312, partition; 313, connecting hole; 32, cover plate; 40, connector; 50, adjustment unit; 51, connecting plate; 52, diversion chamber; 53, diversion pipe group; 54, water collection chamber; 55, extraction pipe; 56, filter screen. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1 and Figure 2A floating photovoltaic power generation system may include a photovoltaic module 10, a basic floating platform 20, a plurality of extended floating platforms 30, a plurality of connectors 40, an adjustment unit 50 and at least one inclination sensor (not shown in the figure). The photovoltaic module 10 is supported and installed above the basic floating platform 20. A plurality of extended floating platforms 30 are arranged around the outside of the basic floating platform 20, and each extended floating platform 30 can be assembled and fixed with the basic floating platform 20 using at least one connector 40. The adjustment unit 50 is installed below the basic floating platform 20, and the adjustment unit 50 is connected with the plurality of extended floating platforms 30 respectively. Two submersible pumps are arranged in the adjustment unit 50, and the two submersible pumps are used to transport or pump water into the extended floating platform 30 respectively. A concave portion that is concave downward is formed at the top center of the basic floating platform 20, and the inclination sensor is installed and fixed in the concave portion, and is used to detect the tilt direction and angle of the entire floating photovoltaic power generation system. According to the feedback signal transmitted by the inclination sensor to the control system, the control system can control the adjustment unit 50 to adjust the counterweight of the extended floating platform 30, so that the center of gravity of the floating photovoltaic power generation system can be changed by adjusting the counterweight of different extended floating platforms 30, and the inclination of the floating photovoltaic power generation system caused by weather can be reduced.

[0022] See also Figure 3 The expansion platform 30 includes a counterweight adjustment box 31 and a cover plate 32. An opening is formed on the top of the counterweight adjustment box 31, and the cover plate 32 covers the opening and is fixed to the counterweight adjustment box 31. After removing the cover plate 32, the inside of the counterweight adjustment box 31 can be cleaned and maintained. The counterweight adjustment box 31 is formed with at least one positioning notch 311 on the side facing the basic floating platform 20, and the side of the connecting member 40 close to the counterweight adjustment box 31 can be inserted into the positioning notch 311 and connected and fixed with the counterweight adjustment box 31 by bolts. A plurality of partitions 312 are formed in the inner cavity of the counterweight adjustment box 31, and the plurality of partitions 312 can separate the inner cavity of the counterweight adjustment box 31 into a plurality of independent cavities. A connecting hole 313 connected to the adjustment unit 50 is formed on the outer wall of each cavity, and water can be transported or pumped into the corresponding cavity by using the connecting hole 313, so as to adjust the counterweight of different areas of the expansion floating platform 30.

[0023] In this embodiment, the cross section of the connecting member 40 can be set to an "X" shape, and the inner corner of one side of the connecting member 40 can be fitted at the corner of the basic floating platform 20 and connected and fixed by bolts. The side of the connecting member 40 can be inserted into the adjacent positioning notch 311 to cooperate with the connection and fixation of the expansion floating platform 30. It can be understood that those skilled in the art can also use other connection structures of any form that can achieve the above-mentioned connection function to assemble and fix the basic floating platform 20 and the expansion floating platform 30.

[0024] See also Figure 4The regulating unit 50 may include a connecting plate 51, a diverter chamber 52, several groups of diverter tube groups 53, a water collecting chamber 54 and an extraction pipe 55. The connecting plate 51 is fixedly connected to the bottom of the basic floating platform 20, and the diverter chamber 52 is fixedly connected to the bottom of the connecting plate 51, and the diverter chamber 52 has a cavity that can store water. The diverter chamber 52 is connected to each expansion floating platform 30 by a group of diverter tube groups 53, and the diverter tube group 53 includes a number of tube bodies equal to the number of cavities in the counterweight regulating box 31, and each tube body passes through a connecting hole 313, so that each cavity in the counterweight regulating box 31 can use a tube body to adjust the internal water volume. An electromagnetic valve is installed on the tube body, and the electromagnetic valve can be opened and closed, so that each cavity in the counterweight regulating box 31 can be independently controlled to convey or pump water. The water collecting chamber 54 is fixedly connected to the bottom of the diverter chamber 52, and the water collecting chamber 54 is used to install two submersible pumps of the regulating unit 50. The input end and output end of one submersible pump are respectively connected to the extraction pipe 55 passing through the outside of the water collecting chamber 54 and the diversion pipe group 53, so that the submersible pump can use the extraction pipe 55 to extract external water and input it into the diversion chamber 52. After the water in the diversion chamber is filled, the pipe body with the electromagnetic valve turned on can be used to transport water to the cavity of the corresponding expansion floating platform 30. The input end and output end of another submersible pump are respectively connected to the diversion pipe group 53 and pass through the outside of the water collecting chamber 54, so that the submersible pump can extract water from the diversion chamber 52 and the cavity connected to the pipe body with the electromagnetic valve turned on, and discharge the water to the outside of the device. The actions of the above two submersible pumps can control the counterweights at different areas of the expansion floating platform 30.

[0025] The system of the present invention may also include a control system for controlling the operation of the above-mentioned submersible pump, etc., so as to automatically adjust the weight of the expansion platform. It should be understood that the control system has no particular limitation and can be implemented by the control technology in the prior art, which will not be described in detail here.

[0026] In all the schemes mentioned above, the connection between two parts can be selected according to actual conditions by welding, bolt and nut matching connection, bolt or screw connection or other well-known connection methods, which are not described one by one here. In the above, all fixed connections are preferably welded. Although the embodiments of the utility model have been shown and described, it can be understood by ordinary technicians in this field that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the utility model. The scope of the utility model is defined by the attached claims and their equivalents.

Claims

1. A floating photovoltaic power generation system, comprising a photovoltaic module (10) and a base floating platform (20), wherein the photovoltaic module (10) is supported and installed above the base floating platform (20), characterized in that: The invention also comprises a plurality of expansion platforms (30), a plurality of connecting members (40) and an adjusting unit (50). The plurality of expansion platforms (30) are arranged around the outside of the basic floating platform (20), and each of the expansion platforms (30) is connected and fixed to the basic floating platform (20) by means of at least one connecting member (40). The adjusting unit (50) is installed below the basic floating platform (20), and the adjusting unit (50) is respectively connected to the plurality of expansion platforms (30). Two submersible pumps are arranged in the adjusting unit (50), and the two submersible pumps are respectively used to transport or pump water into the expansion platform (30), so that the adjusting unit (50) adjusts the counterweight of the expansion platform (30).

2. A floating photovoltaic power generation system according to claim 1, characterized in that: It also comprises at least one inclination sensor. A downwardly recessed inner concave portion is formed at the top center of the base floating platform (20), and the inclination sensor is installed and fixed in the inner concave portion.

3. A floating photovoltaic power generation system according to claim 1, characterized in that: The expansion platform (30) comprises a counterweight adjustment box (31) and a cover plate (32); at least one positioning notch (311) is formed on the side of the counterweight adjustment box (31) facing the basic floating platform (20); the connecting member (40) is inserted into the positioning notch (311) on the side close to the counterweight adjustment box (31) and is connected and fixed to the counterweight adjustment box (31) by bolts; an opening is formed on the top of the counterweight adjustment box (31); the cover plate (32) covers the opening and is fixed to the counterweight adjustment box (31) by clamping.

4. A floating photovoltaic power generation system according to claim 3, characterized in that: A plurality of partitions (312) are formed in the inner cavity of the counterweight adjustment box (31), and the plurality of partitions (312) divide the inner cavity of the counterweight adjustment box (31) into a plurality of independent cavities, and a connecting hole (313) connected to the adjusting unit (50) is formed on the outer wall of each cavity.

5. A floating photovoltaic power generation system according to claim 4, characterized in that: The regulating unit (50) comprises a connecting plate (51), a flow dividing chamber (52), a plurality of flow dividing pipe groups (53), a water collecting chamber (54) and an extraction pipe (55). The connecting plate (51) is fixedly connected to the bottom of the basic floating platform (20). The flow dividing chamber (52) is fixedly connected to the bottom of the connecting plate (51). The flow dividing chamber (52) has a cavity for storing water. A group of flow dividing pipes (53) are used between the flow dividing chamber (52) and each expansion floating platform (30). The water collecting chamber (54) is fixedly connected to the bottom of the diversion chamber (52), and two submersible pumps of the regulating unit (50) are installed in the water collecting chamber (54). The input end and output end of one submersible pump are respectively connected to the extraction pipe (55) passing through the outside of the water collecting chamber (54) and the diversion pipe group (53), and the input end and output end of the other submersible pump are respectively connected to the diversion pipe group (53) and pass through the outside of the water collecting chamber (54).

6. A floating photovoltaic power generation system according to claim 5, characterized in that: The diverter pipe group (53) comprises a number of pipe bodies equal to the number of cavities in the counterweight adjustment box (31), each of the pipe bodies passes through a connecting hole (313), and a solenoid valve is installed on the pipe body, so that each cavity in the counterweight adjustment box (31) can independently transport or pump water.

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