A main floating body and a water photovoltaic power station

Abstract

The present invention discloses a main floating body and a photovoltaic power station on water, wherein the main floating body comprises a main body, a receiving cavity and a water inlet are provided on the main body, the receiving cavity opens upward, and the water inlet connects the inside of the receiving cavity with the outside of the main body. When the main body floats on the water surface, water enters the receiving cavity, so that the draft of the main body increases; in addition, when the main body is impacted by water flow, due to the water stored in the receiving cavity, this part of water lowers the center of gravity of the main floating body and plays an anchoring role, thereby improving the stability of the main floating body.

Description

Technical Field

[0001] The present invention relates to the technical field of water-based photovoltaic equipment, and in particular to a main floating body and a water-based photovoltaic power station. Background Art

[0002] Photovoltaic power generation uses the photovoltaic effect of semiconductor interfaces to directly convert light energy into electrical energy. At present, my country's photovoltaic power stations mainly include ground-based power stations and distributed photovoltaic power stations. Among them, ground-based power stations are mainly located in the western desert areas, where there is a large area, sparse population and sufficient sunshine time. However, due to the long distance between the power station and the user, the power line loss is serious and the effective utilization rate is low; while distributed photovoltaic power stations mainly use the roof area of ​​buildings to install photovoltaic modules, and the available roof resources are limited. Therefore, for areas with sufficient sunshine but small land area, floating photovoltaic power stations have become a new option.

[0003] The floating photovoltaic power station includes a floating body and a photovoltaic panel installed on the floating body, and the floating body floats on the water surface; the existing floating body structure is relatively simple, for example, the patent announcement number is: CN206962750U; the announcement date is: February 2, 2018, and the invention name is: photovoltaic panel carrying floating body. The photovoltaic panel carrying floating body discloses a main body, which has a shallow draft, poor wind and wave resistance, and is easy to be overturned. Summary of the invention

[0004] 1. Problems to be solved

[0005] In view of the problem that existing floating bodies have poor wind and wave resistance and are easily overturned, the present invention provides a main floating body, which increases the draft of the main body to lower the center of gravity of the main body, thereby improving the wave resistance of the main body, and the main body is more stable when used on the water surface.

[0006] The present invention also provides a water photovoltaic power station, which adopts a main floating body with good wave resistance. Therefore, the overall stability of the water photovoltaic power station is improved, which is conducive to promoting the large-scale development of the water photovoltaic power station.

[0007] 2. Technical solution

[0008] To solve the above problems, the present invention adopts the following technical solutions.

[0009] A main floating body comprises a main body. The main body is provided with a containing cavity and a water inlet hole. The containing cavity opens upward, and the water inlet hole communicates the inside of the containing cavity with the outside of the main body.

[0010] More preferably, the water inlet hole passes through the lower surface of the main body.

[0011] More preferably, the water inlet hole passes through the side surface of the body.

[0012] More preferably, the lower surface of the accommodating cavity coincides with the lower surface of the body.

[0013] Preferably, the upper surface of the main body is an inclined surface, a slide rail is provided on the inclined surface, a limit portion is provided at one end of the slide rail close to the lower side of the inclined surface, a slider for installing the photovoltaic panel is slidably connected to the slide rail, and the sliding direction of the slider is parallel to the inclined direction of the upper surface of the main body.

[0014] More preferably, at least two slide rails are provided on the lower side and the upper side of the inclined surface, and the slide rail on the lower side of the inclined surface is parallel to the slide rail on the upper side of the inclined surface.

[0015] Preferably, a sliding groove for the sliding block to slide is provided on the inner side and / or the outer side of the sliding rail.

[0016] Preferably, the body is a hollow structure.

[0017] The present invention also provides an on-water photovoltaic power station, comprising a main floating body, a photovoltaic panel connected to the main floating body, and a walkway floating body connected to the main floating body, wherein the main floating body is the above-mentioned main floating body.

[0018] 3. Beneficial effects

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] (1) The main floating body of the present invention is provided with a accommodating cavity and a water inlet hole on the main body. On the one hand, water can enter the accommodating cavity through the water inlet hole, thereby increasing the draft of the main body. On the other hand, when the main body is impacted by water flow, the water stored in the accommodating cavity lowers the center of gravity of the main floating body, thereby improving the stability of the main floating body.

[0021] (2) The main floating body of the present invention has a water inlet hole penetrating through the lower surface of the main body, so that the water inlet hole can be in contact with the water surface first, making it easier for water to enter.

[0022] (3) In the main floating body of the present invention, since the lower surface of the accommodating cavity coincides with the lower surface of the main body, the water stored in the accommodating cavity is closer to the lower surface of the main body, further lowering the center of gravity of the main floating body.

[0023] (4) When installing the photovoltaic panel, the main floating body of the present invention only needs to install the photovoltaic panel together with the slider on the slide rail without using a large number of bolts and nuts, which is helpful to save installation time.

[0024] (5) The main floating body of the present invention can be provided with a slide groove for the sliding block to slide on the inner side of the slide rail, or can be provided with a slide groove for the sliding block to slide on the outer side of the slide rail, which is more flexible to use.

[0025] (6) The water photovoltaic power station of the present invention adopts a main floating body with good stability. Therefore, the overall stability of the water photovoltaic power station is improved, which is conducive to promoting the large-scale development of the water photovoltaic power station. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of the first structure of the main floating body;

[0027] Figure 2 This is a schematic diagram of the second structure of the main floating body;

[0028] Figure 3 This is a schematic diagram of the first structure of the slider;

[0029] Figure 4 Schematic diagram of the second structure of the slider;

[0030] Figure 5 This is a schematic diagram of the structure of a floating photovoltaic power station.

[0031] In the figure: 1, main body; 2, accommodating cavity; 3, water inlet hole; 4, photovoltaic panel; 5, slide rail; 6, slider; 7, through groove; 8, walkway float; 61, protrusion; 62, groove. DETAILED DESCRIPTION

[0032] The following detailed description of exemplary embodiments of the present invention refers to the accompanying drawings, which form a part of the description, and in which exemplary embodiments of the present invention that can be implemented are shown as examples. Although these exemplary embodiments are described in sufficient detail to enable those skilled in the art to implement the present invention, it should be understood that other embodiments can be implemented and various changes can be made to the present invention without departing from the spirit and scope of the present invention. The following more detailed description of the embodiments of the present invention is not intended to limit the scope of the claimed invention, but is only for the purpose of illustrating and not limiting the description of the characteristics and features of the present invention, so as to propose the best mode for performing the present invention and to enable those skilled in the art to implement the present invention. Therefore, the scope of the present invention is limited only by the appended claims.

[0033] The present invention is further described below in conjunction with specific embodiments.

[0034] Example 1

[0035] like Figure 1As shown, a main floating body includes a body 1. In this embodiment, the body 1 is a hollow structure. The material of the body 1 is selected from medium-density polyethylene. The body 1 is formed by blow molding, and the upper surface of the body 1 is horizontal. In order to increase the draft of the body 1, a receiving cavity 2 and a water inlet 3 are provided on the body 1, and the water inlet 3 connects the inside of the receiving cavity 2 with the outside of the body; when the body 1 is used on the water surface, water enters the receiving cavity 2 from the water inlet 3, and at this time, the draft of the body 1 is increased; in addition, when the body 1 is impacted by the water flow, due to the water stored in the receiving cavity 2, this part of the water lowers the center of gravity of the main floating body and plays an anchoring role, thereby improving the stability of the main floating body.

[0036] One or more water inlet holes 3 may be provided; in this embodiment, the main floating body only uses one water inlet hole 3, and when the main body 1 is used on the water surface, water enters through the water inlet hole 3 and is stored in the accommodating chamber 2. It should be understood that when the main body 1 is impacted by water flow, the smaller the cross-sectional area of ​​the water inlet hole 3, the smaller the amount of water stored in the accommodating chamber 2 flows out, and the more stable the main floating body is.

[0037] In this embodiment, the water inlet hole 3 passes through the lower surface of the body 1. When the body 1 is used on the water surface, the water inlet hole 3 first contacts the water surface, which facilitates water to enter. In addition, the water inlet hole 3 can also pass through the side of the body 1. When the body 1 is placed on the water surface, when the water inlet hole 3 is submerged below the water surface, water enters through the water inlet hole 3 and is stored in the accommodating chamber 2.

[0038] In order to further enhance the stability of the main body 1, in this embodiment, the lower surface of the accommodating chamber 2 coincides with the lower surface of the main body 1. At this time, the water stored in the accommodating chamber is closer to the lower surface of the main body, so that the center of gravity of the main float is further lowered.

[0039] Example 2

[0040] like Figure 2 As shown, a main floating body includes a body 1. In this embodiment, the body 1 is a hollow structure. The material of the body 1 is high-density polyethylene, and the body 1 is formed by blow molding. In order to increase the draft of the body 1, a receiving cavity 2 and a water inlet 3 are provided on the body 1, and the water inlet 3 connects the inside of the receiving cavity 2 with the outside of the body; when the body 1 is used on the water surface, water enters the receiving cavity 2 from the water inlet 3, so that the draft of the body 1 is increased; in addition, when the body 1 is impacted by the water flow, due to the water stored in the receiving cavity 2, this part of the water lowers the center of gravity of the main floating body and plays an anchoring role, thereby improving the stability of the main floating body.

[0041] In this embodiment, there is one water inlet hole 3, and when the main body 1 is used on the water surface, water enters the accommodating chamber 2 through the water inlet hole 3. It should be understood that when the main body 1 is impacted by water flow, the smaller the cross-sectional area of ​​the water inlet hole 3, the smaller the amount of water stored in the accommodating chamber 2 flows out, and the more stable the main float is.

[0042] In this embodiment, the water inlet hole 3 passes through the lower surface of the body 1. When the body 1 is used on the water surface, the water inlet hole 3 first contacts the water surface, which facilitates water to enter.

[0043] In order to further enhance the stability of the main body 1, in this embodiment, the lower surface of the accommodating chamber 2 coincides with the lower surface of the main body 1. At this time, the water stored in the accommodating chamber is closer to the lower surface of the main body, so that the center of gravity of the main float is further lowered.

[0044] In order to facilitate the installation of photovoltaic panels, a slide rail 5 is further provided on the upper surface of the body 1, and a slider 6 for installing the photovoltaic panel is slidably connected to the slide rail 5; see Figure 2 In this embodiment, the upper surface of the body 1 is an inclined surface, on which a slide rail 5 is provided, and the sliding direction of the slider 6 is parallel to the inclined direction of the upper surface of the body 1; an end of the slide rail 5 close to the upper side of the inclined surface is provided with a sliding entrance, and the slider 6 can slide in from the sliding entrance; under the action of its own gravity, the slider 6 will continue to slide downward in the direction close to the lower side of the inclined surface. In order to ensure that the slider 6 can stay in a preset position, a limit portion is provided at one end of the slide rail 5 close to the lower side of the inclined surface, and the slider 6 is prevented from continuing to slide through the limit portion; a limit portion is provided at one end of the slide rail 5 close to the lower surface of the body.

[0045] like Figure 2 As shown, in the present embodiment, the inclined surface is rectangular, and there are four slide rails 5, which are distributed at the four corners of the inclined surface. The inner and outer sides of the slide rails 5 are provided with slide grooves for the slider 6 to slide. In order to more clearly understand the inner side of the slide rail 5 and the outer side of the slide rail 5, here, the two slide rails 5 located on the lower side of the inclined surface are taken as an example. The opposite sides of the two slide rails are the inner sides of the slide rails 5, and the opposite sides of the two slide rails 5 are the outer sides of the slide rails 5. The slide rails 5 located on the lower side of the inclined surface are parallel to the slide rails 5 on the upper side of the inclined surface. Specifically, for each slide rail 5 on the lower side of the inclined surface, there is a slide rail 5 corresponding to it on the upper side of the inclined surface, and the axes of the two corresponding slide rails are collinear. When installing photovoltaic panels, each slide rail 5 corresponds to a slider 6, and all sliders 6 are fixedly installed on the lower surface of the photovoltaic panel; the slider 6 is provided with a protrusion 61 that cooperates with the slide groove, and the protrusion 61 can slide into the slide groove from the sliding entrance. As shown Figure 3As shown, in this embodiment, protrusions 61 are provided on both sides of the slider 6. In order to prevent the photovoltaic panel from shaking in the horizontal direction, there are two options for the position of the slider 6. The first option is that the protrusion 61 is installed in the slide groove outside the slide rail 5, and all the sliders 6 are installed on the outside of the slide rail 5 at the same time; the second option is that the protrusion 61 is installed in the slide groove inside the slide rail 5, and all the sliders 6 are installed on the inside of the slide rail 5 at the same time. In addition, as Figure 4 As shown, a groove 62 can be set on the lower surface of the slider 6, and the upper end of the slide rail 5 is accommodated in the groove 62. Protrusions 61 are provided on both sides of the groove 62. The protrusion 61 on one side of the groove 62 slides into the slide groove on the inner side of the slide rail 5. At the same time, the protrusion 61 on the other side of the groove 62 slides into the slide groove on the outer side of the slide rail 5.

[0046] Regarding the setting of the slide groove, in addition to the technical solution described in this embodiment, the slide groove for sliding the slider 6 can also be provided only on the inner side of the slide rail 5; or the slide groove for sliding the slider 6 can be provided only on the outer side of the slide rail 5. In this case, a protrusion matching the slide groove can be provided only on one side of the lower end of the slider 6.

[0047] The photovoltaic panel has a negative temperature coefficient characteristic, that is, the power generation efficiency of the photovoltaic panel is inversely proportional to the surface temperature of the photovoltaic panel. In order to cool the photovoltaic panel, in this embodiment, a through groove 7 is provided on the upper surface of the body 1. Figure 2 As shown, the through groove 7 is connected with the accommodating chamber 2, and the wind flows into the accommodating chamber 2 from the through groove 1, thereby enhancing the evaporation of water inside the accommodating chamber 2, and dissipating heat for the photovoltaic panel through evaporation of the water surface.

[0048] Example 3

[0049] like Figure 5 As shown, a photovoltaic power station on water includes a main floating body, a photovoltaic panel 4 connected to the main floating body, and a walkway floating body 8 connected to the main floating body. Among them, the main floating body adopts the main floating body described in Example 2. In this embodiment, the upper surface of the slider 6 is bonded to the lower surface of the photovoltaic panel 4, and the protrusion on the lower surface of the slider 6 enters the outer slide groove of the slide rail 5 along the slide entrance. In addition, a first connecting ear is provided on the main body 1, and a second connecting ear is provided on the walkway floating body 8, and the first connecting ear and the second connecting ear are connected.

[0050] The water-based photovoltaic power station adopts a main floating body with good stability. Therefore, the overall stability of the water-based photovoltaic power station is improved, which is conducive to promoting the large-scale development of water-based photovoltaic power stations.

[0051] The present invention and its embodiments are described schematically above, and the description is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. Therefore, if a person skilled in the art is inspired by it and designs a structural method and an embodiment similar to the technical solution without creativity without departing from the purpose of the invention, they shall all fall within the protection scope of the present invention.

Claims

1. A main floating body, characterized in that: include: The main body (1) is a hollow structure, and is provided with a receiving cavity (2) and a water inlet hole (3). The receiving cavity (2) opens upward, and the water inlet hole (3) communicates the interior of the receiving cavity (2) with the exterior of the main body (1). The water inlet hole (3) passes through the side of the main body (1). The main body (1) is used on the water surface. When the water inlet hole (3) is submerged below the water surface, water enters the receiving cavity (2) through the water inlet hole (3) and is stored in the receiving cavity (2). The smaller the cross-sectional area of ​​the water inlet hole (3), the smaller the amount of water stored in the receiving cavity (2) flows out, and the more stable the main floating body is. The lower surface of the receiving cavity (2) coincides with the lower surface of the main body (1), and the water stored in the receiving cavity (2) is closer to the lower surface of the main body (1), so that the center of gravity of the main floating body is further lowered. The depth of the receiving cavity (2) is consistent with the height of the main body (1). The upper surface of the main body (1) is provided with a through groove (7), and the through groove (7) is communicated with the receiving cavity (2).

2. The main floating body according to claim 1, characterized in that: The upper surface of the body (1) is an inclined surface, a slide rail (5) is provided on the inclined surface, a limit portion is provided at one end of the slide rail (5) close to the lower side of the inclined surface, a slider (6) for mounting a photovoltaic panel (4) is slidably connected to the slide rail (5), and a sliding direction of the slider (6) is parallel to the inclined direction of the upper surface of the body.

3. The main floating body according to claim 2, characterized in that: At least two slide rails (5) are provided on the lower side and the upper side of the inclined surface, and the slide rail (5) on the lower side of the inclined surface is parallel to the slide rail (5) on the upper side of the inclined surface.

4. The main floating body according to claim 3, characterized in that: The inner side and / or the outer side of the slide rail is provided with a slide groove for the sliding block (6) to slide.

5. A photovoltaic power station on water, characterized in that: The invention comprises a main floating body, a photovoltaic panel (4) connected to the main floating body, and a walkway floating body (8) connected to the main floating body, wherein the main floating body is the main floating body described in claim 1.

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