A photovoltaic power station applied in coal mining subsidence areas

Abstract

This invention provides a photovoltaic power station for use in coal mining subsidence areas. It includes multiple sets of photovoltaic modules arranged above the soil layer in the subsidence area, with each set of modules interconnected via structural connectors to form a continuous photovoltaic array. Each photovoltaic module includes multiple bases arranged on the soil at the edge of the subsidence pit, with photovoltaic support structures mounted on the bases. Counterweight stabilizing beams connect adjacent bases within each photovoltaic module. All structural connectors, counterweight stabilizing beams, and bases together constitute a soil sealing layer in the coal mining subsidence area. This invention can reduce the damage caused by subsidence in coal mining subsidence areas to the photovoltaic power station, while also providing better sealing of the soil layer and reducing the impact of natural wind on the soil.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic power generation technology, specifically to a photovoltaic power station applied in coal mining subsidence areas. Background Technology

[0002] With the rapid development of photovoltaic power generation technology, the contradiction between the demand for land for photovoltaic power plant construction and available land resources has become increasingly prominent. Against this backdrop, improving land resource utilization has become a key direction for industry development, and the development and utilization of photovoltaic power on damaged land such as coal mining subsidence areas is gradually becoming an important solution. Such projects can not only achieve the composite utilization of land resources, but also promote the ecological restoration of coal mining subsidence areas through the modular layout of photovoltaic power plants.

[0003] In existing technologies, photovoltaic power plants are typically installed by driving photovoltaic piles into unstable soil layers using a pile driver. Under dynamic settlement geological conditions, this installation method can easily cause the photovoltaic piles to tilt or even break, seriously affecting the structural stability and power generation efficiency of the photovoltaic power plant. Utility Model Content

[0004] To address the shortcomings of existing technologies, the purpose of this invention is to provide a photovoltaic power station applicable to coal mining subsidence areas. This invention can reduce the damage caused by subsidence in coal mining subsidence areas to photovoltaic power stations, while also providing better sealing of the soil layer in coal mining subsidence areas and reducing the impact of natural wind on the soil layer.

[0005] This utility model provides a photovoltaic power station for use in coal mining subsidence areas, including multiple sets of photovoltaic modules arranged above the soil layer in the coal mining subsidence area. Each set of photovoltaic modules is interconnected by structural connectors to form a continuous photovoltaic array. Each photovoltaic module includes multiple bases arranged on the soil at the edge of the subsidence pit, and a photovoltaic support structure is set on the bases. There are counterweight stabilizing beams connecting adjacent bases within the photovoltaic modules. All the structural connectors, counterweight stabilizing beams and bases together constitute a soil sealing layer in the coal mining subsidence area.

[0006] In one embodiment, the two adjacent sets of photovoltaic modules are structurally connected by a shared base. The shared base also serves as a support node for the two sets of photovoltaic modules, with counterweight stabilizing beams of the corresponding photovoltaic modules connected to its two sides.

[0007] In one embodiment, the common base is configured as a cross shape, with counterweight stabilizing beam connection interfaces on its four end faces.

[0008] In one embodiment, the common base is configured as a T-shaped structure, with counterweight stabilizing beam connection interfaces on its three end faces.

[0009] In one embodiment, the base inside the photovoltaic module is configured in a cross shape, with counterweight stabilizing beam connection interfaces on its four side ends.

[0010] In one embodiment, the base inside the photovoltaic module is configured as a T-shaped structure, with counterweight stabilizing beam connection interfaces on its three end faces.

[0011] In one embodiment, the continuous photovoltaic array is configured as a rectangle, square, trapezoid, triangle or other irregular geometric layout.

[0012] In one embodiment, the photovoltaic support structure includes a photovoltaic pile base and a photovoltaic bracket mounted on a base, with the photovoltaic pile base connected to the photovoltaic bracket at the top, and photovoltaic modules mounted on the photovoltaic bracket.

[0013] In one embodiment, the photovoltaic pile base and the base are fixedly connected by cast-in-place concrete.

[0014] In one embodiment, the base, counterweight stabilizing beam, structural connectors, and photovoltaic support structure are all made of prefabricated components.

[0015] The beneficial effects of the photovoltaic power station applied to coal mining subsidence areas provided by this embodiment of the invention are as follows:

[0016] This utility model increases the land utilization rate of coal mining subsidence areas, restores local ecological construction, replaces fossil energy with green energy, drives local economic development through the construction of photovoltaic power stations, increases local employment opportunities through the long-term operation of photovoltaic power stations, and effectively reduces unnecessary property losses caused during the reuse of coal mining subsidence areas.

[0017] This invention utilizes an integrated base connection for each photovoltaic module group, reducing the damage caused to photovoltaic power stations by uneven settlement in subsidence areas. Through modular and prefabricated design, this invention significantly reduces construction time, improves construction efficiency, and enhances economic benefits. Simultaneously, it lowers subsequent operation and maintenance costs, solving the technical problem of existing technologies where irregular settlement in coal mining subsidence areas prevents the construction of new energy photovoltaic power generation projects. This promotes ecological restoration in coal mining subsidence areas, accelerates the local green and sustainable development process, and lays the foundation for the construction of new energy photovoltaic power transmission networks. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of a photovoltaic module provided in an embodiment of the present utility model;

[0020] Figure 2 A top view schematic diagram of a partial layout of a photovoltaic power station applied in a coal mining subsidence area, provided as an embodiment of this utility model;

[0021] Figure 3 This is a top view schematic diagram of the overall layout of a photovoltaic power station applied in a coal mining subsidence area, provided as an embodiment of the present invention.

[0022] Attached reference numerals: 1-Soil subsidence pit; 2-Photovoltaic support; 3-Photovoltaic pile foundation; 4-Base; 5-Counterweight stabilizing beam; 6-Soil layer; 7-Photovoltaic module; 8-Connection interface; 9-Shared base. Detailed Implementation

[0023] To enable those skilled in the art to better understand the technical solution of this utility model, the preferred embodiments of this utility model are described below in conjunction with specific examples. However, it should be understood that the accompanying drawings are for illustrative purposes only and should not be construed as limiting the present utility model. For better illustration of this embodiment, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual product dimensions. It is understandable that some well-known structures and their descriptions may be omitted in the drawings for those skilled in the art. The positional relationships described in the drawings are for illustrative purposes only and should not be construed as limiting the present utility model.

[0024] The present invention will be further described below with reference to the accompanying drawings and embodiments, but this should not be construed as limiting the present invention.

[0025] like Figures 1 to 3 As shown, a photovoltaic power station applied in a coal mining subsidence area includes multiple sets of photovoltaic modules arranged above the soil layer 6 in the coal mining subsidence area. Each set of photovoltaic modules is interconnected by structural connectors to form a continuous photovoltaic array. The photovoltaic module includes multiple bases 4 arranged on the soil at the edge of the subsidence pit 1. The bottom height of the base 4 is higher than the highest horizontal height of the subsidence pit 1. A photovoltaic support structure is set on the base 4. The photovoltaic module is connected to the adjacent bases 4 by counterweight stabilizing beams 5. All the structural connectors, counterweight stabilizing beams 5 and bases 4 together constitute the soil sealing layer on the coal mining subsidence area.

[0026] like Figure 2 and Figure 3 As shown, each group of photovoltaic modules is set up to match multiple soil subsidence pits 1 in the soil subsidence area, thereby effectively blocking the rapid loss of soil with reduced physical clay particles near the ground, reducing the loss of soil organic matter, alkali-soluble nitrogen, and available phosphorus, providing a solid external environment for soil and water conservation, and promoting the ecological restoration of the coal mining subsidence area.

[0027] Additionally, within a single photovoltaic module, the soil subsidence pit 1 is divided into several long-hair areas by splicing the base 4 with the counterweight stabilizing beam 5 at two to four end faces. Figure 3 As shown, the end face of the base 4 that is not joined with the counterweight stabilizing beam 5 can be omitted, that is, the base 4 can be set as a T-shaped structure.

[0028] The two adjacent photovoltaic modules are structurally connected by a shared base 9, which also serves as a support node for the two photovoltaic modules. The counterweight stabilizing beams 5 of the corresponding photovoltaic modules are connected to both sides of the base 9.

[0029] The shared base 9 is cross-shaped, with counterweight stabilizing beam connection interfaces 8 on its four side ends.

[0030] The shared base 9 is configured as a T-shaped structure, with counterweight stabilizing beam connection interfaces 8 on its three end faces.

[0031] The base 4 inside the photovoltaic module is designed in a cross shape, and its four side end faces are respectively provided with counterweight stabilizing beam connection interfaces 8.

[0032] The base 4 inside the photovoltaic module is configured as a T-shaped structure, and its three end faces are respectively provided with counterweight stabilizing beam connection interfaces 8.

[0033] The continuous photovoltaic array is configured as a whole in a rectangular, square, trapezoidal, triangular or other irregular geometric layout.

[0034] In this embodiment, the photovoltaic power station in the coal mining subsidence area utilizes interconnected photovoltaic modules via structural connectors to form a continuous photovoltaic array. This not only increases the counterweight and contact area but also reduces the pressure per unit weight-bearing area, ensuring the photovoltaic power station meets the counterweight requirements. This allows most of the photovoltaic piles 3 near the interior of the coal mining subsidence area to be fixed within the subsidence area without the need for pile driving, reducing construction costs and enhancing the stability of the photovoltaic power station. Furthermore, the connection between the base 4 and the counterweight stabilizing beam 5 forms a soil sealing layer, providing better sealing of the soil layer 6 and reducing the impact of natural wind on it.

[0035] The photovoltaic support structure includes a photovoltaic pile base 3 and a photovoltaic bracket 2 installed on a base 4. The photovoltaic pile base 3 is connected to the photovoltaic bracket 2 at the top, and a photovoltaic module 7 is installed on the photovoltaic bracket 2.

[0036] The photovoltaic pile base 3 and the base 4 are fixedly connected by cast-in-place concrete.

[0037] The base, counterweight stabilizing beam, structural connectors, and photovoltaic support structure are all made of prefabricated components.

[0038] In this embodiment, the counterweight stabilizing beam 5 is assembled with the end face of the base 4 using a separate disassembly and assembly method. In this case, the base 4 and the counterweight stabilizing beam 5 can be installed separately, making the assembly steps more diverse and more suitable for relatively complex coal mining subsidence areas. Specifically, during the assembly process of the photovoltaic power station, the counterweight stabilizing beam 5 and the base 4 can be fixed by cast-in-place concrete.

[0039] In this embodiment, the photovoltaic pile foundation 3 and the base 4 are fixed by cast-in-place concrete, which makes it easier to carry out construction in accordance with a unified matching method during the actual construction process.

[0040] In this embodiment, the height of the photovoltaic device composed of photovoltaic pile foundation 3 and photovoltaic module 7 depends on the counterweight and stability of the combination of base 4 and counterweight stabilizing beam 5. After connecting all base 4 and counterweight stabilizing beam 5, the photovoltaic device composed of photovoltaic pile foundation 3 and photovoltaic module 7 can adapt to more special conditions in coal mining subsidence areas. Since the bottom of the base 4 and counterweight stabilizing beam 5 is solid, the photovoltaic device can be adjusted as needed within a certain limit when encountering special situations that require adjustment of height and position.

[0041] In this embodiment, the photovoltaic pile foundation 3 and the photovoltaic module 7 can be combined into an integrated photovoltaic device. This integrated photovoltaic device is more suitable for scenarios requiring rapid construction. Furthermore, the use of a base 4 and a counterweight stabilizing beam 5 for integrated installation can significantly shorten the construction time and reduce the cost of photovoltaic power stations in coal mining subsidence areas. However, this combination method is more suitable for less complex subsidence areas. For more complex subsidence areas, specific considerations can be made during construction.

[0042] In this embodiment, both the photovoltaic support 2 and the photovoltaic module 7 are existing technologies. The photovoltaic support 2 is detachably connected to the photovoltaic pile foundation 3, and the photovoltaic support 2 and the photovoltaic module 7 are detachably connected to each other. Photovoltaic efficiency mainly depends on the working efficiency of the photovoltaic module 7. Therefore, if a high-efficiency photovoltaic power station is desired, customized photovoltaic modules 7 can be selected. This improves the photovoltaic power generation efficiency of each photovoltaic device installed in the subsidence area, thereby increasing the overall power generation efficiency of the photovoltaic power station. Furthermore, the detachable nature of the photovoltaic module 7 facilitates replacement of old modules and repair of damaged modules, and also makes transportation more convenient.

[0043] Based on the description and accompanying drawings of this utility model, those skilled in the art can easily manufacture or use a photovoltaic power station of this utility model applied to coal mining subsidence areas, and can produce the positive effects described in this utility model.

[0044] Unless otherwise specified, in this utility model, terms such as "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe orientation or positional relationships in this utility model are for illustrative purposes only and should not be construed as limiting this utility model. For those skilled in the art, the specific meaning of the above terms can be understood in conjunction with the accompanying drawings and according to the specific circumstances.

[0045] Unless otherwise expressly specified and limited, the terms "set up," "connected," and "linked" in this utility model should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0046] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Any simple modifications or equivalent changes made to the above embodiments based on the technical essence of the present utility model shall fall within the protection scope of the present utility model.

Claims

1. A photovoltaic power station applied to a coal mining subsidence area, characterized in that: It includes multiple sets of photovoltaic modules arranged above the soil layer in the coal mining subsidence area. Each set of photovoltaic modules is interconnected by structural connectors to form a continuous photovoltaic array. The photovoltaic module includes multiple bases arranged on the soil at the edge of the subsidence pit, and photovoltaic support structures are set on the bases. There are counterweight stabilizing beams connecting adjacent bases inside the photovoltaic module. All the structural connectors, counterweight stabilizing beams and bases together constitute the soil sealing layer on the coal mining subsidence area.

2. The photovoltaic power station applied in coal mining subsidence areas according to claim 1, characterized in that: The two adjacent photovoltaic modules are structurally connected by a shared base, which also serves as a support node for the two photovoltaic modules. The counterweight stabilizing beams of the corresponding photovoltaic modules are connected to both sides of the base.

3. The photovoltaic power station applied to coal mining subsidence areas according to claim 2, characterized in that: The shared base is cross-shaped, with counterweight stabilizing beam connection interfaces on its four end faces.

4. The photovoltaic power station applied in coal mining subsidence areas according to claim 3, characterized in that: The shared base is configured as a T-shaped structure, with counterweight stabilizing beam connection interfaces on its three end faces.

5. The photovoltaic power station applied in coal mining subsidence areas according to claim 1, characterized in that: The base inside the photovoltaic module is designed in a cross shape, and its four side ends are respectively provided with counterweight stabilizing beam connection interfaces.

6. The photovoltaic power station applied in coal mining subsidence areas according to claim 1, characterized in that: The base inside the photovoltaic module is designed as a T-shaped structure, with counterweight stabilizing beam connection interfaces on its three end faces.

7. The photovoltaic power station applied in coal mining subsidence areas according to claim 1, characterized in that: The continuous photovoltaic array is configured as a whole in a rectangular, square, trapezoidal, triangular or other irregular geometric layout.

8. The photovoltaic power station applied in coal mining subsidence areas according to claim 1, characterized in that: The photovoltaic support structure includes a photovoltaic pile base and a photovoltaic bracket installed on a base. The photovoltaic pile base is connected to the photovoltaic bracket at the top, and photovoltaic modules are installed on the photovoltaic bracket.

9. The photovoltaic power station applied in coal mining subsidence areas according to claim 1, characterized in that: The base, counterweight stabilizing beam, structural connectors, and photovoltaic support structure are all made of prefabricated components.

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