Typhoon protection device for offshore photovoltaic power station

Abstract

This utility model discloses a typhoon protection device for an offshore photovoltaic power station, comprising several protection units connected sequentially around the offshore photovoltaic power station to form a protective barrier surrounding the station. Each protection unit includes a protective frame, a buffer and energy-dissipating component, and connectors. The protective frame includes an outer frame fixedly installed around the offshore photovoltaic power station, which is connected to the outer frames of adjacent protective frames. At least two layers of mesh protective bodies are provided on the outer frame from the outside in, and at least one set of buffer and energy-dissipating components is provided between each pair of adjacent mesh protective bodies. This utility model has a unique structure and ingenious design, effectively solving the problems of poor protection effect, uneven energy dissipation and buffering, and high maintenance costs of existing typhoon protection devices for offshore photovoltaic power stations.

Description

Technical Field

[0001] This utility model belongs to the field of new energy equipment protection technology, specifically relating to a typhoon protection device for offshore photovoltaic power stations. Background Technology

[0002] Typhoon protection devices for offshore photovoltaic power stations are protective structures installed around the perimeter of the power station. Their core function is to resist the impact of strong air currents, waves, and seabed debris brought by typhoons. By weakening the typhoon's energy and blocking external impacts, they reduce damage to photovoltaic modules (such as photovoltaic panels and supports), ensuring the safe and stable operation of the power station during typhoon seasons. They are key supporting equipment for the large-scale application of offshore photovoltaic power stations in typhoon-prone sea areas.

[0003] Existing typhoon protection devices for offshore photovoltaic power plants are mostly designed with physical blocking or simple buffering as the core concept. Common technical solutions include using single-layer metal baffles or single-layer woven mesh as the main protection body, or combining them with bulk energy unloading blocks and fixed welded protective structures to form a protection system. Among them, the solution using single-layer metal baffles has a certain impact resistance, but its flexibility is poor, and it is easy to overturn or break under the action of strong typhoon airflow. The solution using single-layer woven mesh is flexible, but its protective performance is poor and it is difficult to achieve the protective effect of "airflow buffering". As for the solution with bulk energy unloading blocks, they tend to pile up to one side under the action of typhoon, causing local buffering failure. At the same time, after the typhoon, it is necessary to manually sort and reposition the piled-up energy unloading blocks, which greatly increases the workload of operation and maintenance. Utility Model Content

[0004] In view of the defects and problems of existing offshore photovoltaic power station protection devices, this utility model provides an offshore photovoltaic power station typhoon protection device. The device has a unique structure and ingenious design, which can effectively solve the problems of poor protection effect, uneven energy unloading and buffering, and high maintenance cost of existing offshore photovoltaic power station typhoon protection devices.

[0005] The solution adopted by this utility model to solve its technical problem is: a typhoon protection device for an offshore photovoltaic power station, comprising several protection units, which are sequentially connected around the offshore photovoltaic power station to form a protective barrier surrounding the offshore photovoltaic power station; each protection unit includes a protective frame, a buffer energy dissipation component, and a connector; the protective frame includes an outer frame fixedly installed around the offshore photovoltaic power station, and the outer frame is connected to the outer frame of an adjacent protective frame; the outer frame is provided with at least two layers of mesh protective bodies from the outside to the inside, and at least one set of buffer energy dissipation components is provided between each pair of adjacent mesh protective bodies; the buffer energy dissipation component includes multiple evenly arranged energy dissipation balls, and the energy dissipation balls are detachably connected to the protective frame through connectors.

[0006] The energy-dissipating sphere includes an inner core sphere with a protective layer on the outside. The inner core sphere is detachably connected to the outer frame via a connector.

[0007] The connector is a connecting rope, one end of which is fixedly connected to the outer frame or the mesh protective body located on the outside, and the other end of which is detachably connected to the energy-dissipating ball.

[0008] The outer frame is composed of at least two rectangular frames, with adjacent rectangular frames fixedly connected; the number of rectangular frames is the same as the number of mesh protective bodies, and the mesh protective bodies are correspondingly fixedly installed inside the rectangular frames.

[0009] The mesh structure is one of the following: polymer woven mesh, metal anti-corrosion mesh, or fiber-reinforced composite mesh.

[0010] A protective plate is fixedly installed at the bottom of the outer frame, and the protective plate is provided with water passage holes.

[0011] A reinforcing support structure is provided between adjacent mesh structures.

[0012] Several elastic limiting members are provided between two adjacent layers of the mesh protective body; the several elastic limiting members are distributed at intervals along the extension direction of the mesh protective body, dividing the space between two adjacent mesh protective bodies into multiple independent limiting zones; at least one energy-dissipating ball is provided in each limiting zone.

[0013] The beneficial effects of this utility model are as follows: This utility model provides a typhoon protection device for offshore photovoltaic power stations. By setting at least two layers of mesh protective bodies along the thickness direction on the outer frame, and configuring staggered energy-dissipating balls and connectors between adjacent mesh protective bodies, when a strong typhoon strikes, the typhoon airflow first passes through the outer mesh protective body and impacts the energy-dissipating balls. Initial energy dissipation is achieved through aerodynamic resistance. The inner core of the energy-dissipating balls undergoes compression deformation after being subjected to force, converting the kinetic energy of the airflow into elastic potential energy and changing the airflow path. Simultaneously, the flexible deformation of the connecting rope further dissipates kinetic energy, achieving a three-stage energy dissipation effect, significantly weakening the impact force of the typhoon airflow. Furthermore, the two layers of mesh protective bodies, combined with the protective plate with water-perforated holes at the bottom, can effectively block oblique and direct airflows, as well as mud, sand, and gravel stirred up by waves, comprehensively reducing the risk of impact damage to photovoltaic modules. The energy-dissipating balls are detachably connected to the mesh protective body through connectors, achieving uniform arrangement under the constraint of the connectors, avoiding the problem of energy-dissipating balls piling up to one side and causing localized buffer failure under typhoon conditions. If elastic limiting components are configured, further... The elastic limiting component restricts excessive movement of the energy-discharging ball and further absorbs kinetic energy, ensuring uniform and stable overall energy discharging and buffering. The inner core of the energy-discharging ball, the connecting rope, and the elastic limiting component all have good elastic recovery capabilities, and can automatically return to their original position after a typhoon, eliminating the need for manual adjustment and resetting of the energy-discharging ball, significantly reducing operation and maintenance workload and costs, and enabling the device to quickly return to its protective state. The energy-discharging ball adopts a composite structure of inner core and weather-resistant protective layer, and the connecting parts are made of tensile and corrosion-resistant materials. The outer frame is equipped with a reinforced support structure to ensure overall force balance, effectively resisting damage to the device from seawater corrosion, ultraviolet aging, and typhoon impact, extending the service life of the device. The outer frame can be installed in various ways, such as column clamps or pile fixation, to adapt to the load-bearing and corrosion protection requirements of different sea areas. It can also be extended to applications such as wind and sand protection for photovoltaic power stations in desert areas, wind protection for photovoltaic power stations in plateau areas, protection for photovoltaic power stations in lakes and rivers, as well as wind impact protection for communication base stations, livestock and poultry breeding sheds, and various types of sheds, or waterproofing against water flow impacts around offshore cage aquaculture areas, making it widely applicable. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0015] Figure 2 This is a schematic diagram of the protective frame structure of this utility model.

[0016] Figure 3 This is a front view structural diagram of the protective frame of this utility model.

[0017] Figure 4 This is a schematic diagram of the distribution of the buffer energy dissipation component of this utility model.

[0018] Figure 5 This is a schematic diagram of the energy-dissipating ball structure of this utility model.

[0019] Figure 6 This is a schematic diagram of the reinforced support structure of this utility model.

[0020] The diagram is labeled as follows: 1 is the protective unit, 2 is the protective frame, 21 is the rectangular frame, 22 is the longitudinal beam, 3 is the energy-dissipating ball, 31 is the inner core ball, 32 is the protective layer, 33 is the lifting ring, 4 is the connector, 41 is the hook, 5 is the column, 6 is the mesh protective body, 7 is the reinforced support structure, and 8 is the protective net. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments. Example

[0022] To address the problems mentioned in the background section, this embodiment provides a typhoon protection device for offshore photovoltaic power plants, such as... Figure 1-6 As shown, the system includes several protective units 1, which are arranged around the offshore photovoltaic power station and connected sequentially to form a protective barrier surrounding the outside of the offshore photovoltaic power station. Each protective unit 1 includes a protective frame, a buffer energy dissipation component 3, and a connector 4. The protective frame includes an outer frame 2 fixedly installed around the offshore photovoltaic power station. There are various ways to fix the outer frame 2. For example, the power station platform around the offshore photovoltaic power station is equipped with columns 5, and the columns of the outer frame 2 are fixedly connected to the columns by U-shaped clamps and bolts. Alternatively, the bottom of the outer frame is fixed to the seabed by at least 4 piles, and the piles are fixed together with the outer frame. The selection of piles can be based on the bearing capacity and corrosion protection requirements of the sea area. For example, composite material piles (such as FRP piles), metal anti-corrosion piles (such as galvanized steel piles), or concrete piles can be selected.

[0023] The outer frame 2 is connected to the outer frame of the adjacent protective frame 2. There are several ways to connect the two, such as: the two adjacent outer frames are fixedly connected together by several connecting rods, and the two ends of the connecting rods are fixedly connected to the corresponding outer frame by bolts.

[0024] The top of the outer frame is fitted with a protective netting identical to that of the mesh protective body. The protective netting 8 can block oblique and forward airflows and prevent the buffer components from coming off from the top.

[0025] Furthermore, a protective plate is fixedly installed at the bottom of the outer frame 2. The protective plate has water passage holes, and the diameter of the water passage holes is smaller than the diameter of the energy unloading ball. The outer frame can be made of structures such as grating plates or hollow benches to cover the bottom opening of the outer frame and prevent the buffer energy unloading component 3 from falling into the sea. At the same time, the water passage holes on the protective plate will not obstruct the flow of seawater, which can effectively reduce the impact force of sea waves on the bottom of the frame. When the sea waves accompanying the typhoon impact the bottom of the device installed on the pile, the seawater will flow quickly through the water passage holes of the protective plate to prevent seawater from accumulating in the frame. At the same time, the protective plate blocks the mud, sand and gravel rolled up by the sea waves to prevent them from hitting the bottom of the photovoltaic panel.

[0026] The outer frame 2 has two layers of mesh protective bodies 6 along the thickness direction from the outside to the inside. The outer frame 2 is composed of two rectangular frames 21. The number of rectangular frames 21 is the same as the number of mesh protective bodies. There are four longitudinal beams 22 between two adjacent rectangular frames 21. The four longitudinal beams are distributed at the four corner column nodes of the two rectangular frames. The two ends of the beams are welded or bolted to the adjacent rectangular frames. The mesh protective bodies 6 are fixedly installed inside the rectangular frames. The mesh structure is made of one of the following: high polymer woven mesh (such as HDPE mesh), metal anti-corrosion mesh (such as stainless steel mesh), or fiber reinforced composite mesh. The mesh size is 5-30cm. It can block some airflow and prevent the frame from bearing excessive wind pressure.

[0027] Furthermore, a reinforcing support structure 7 is provided between two adjacent mesh structures. The reinforcing support structure 7 can be a rod-shaped, mesh-shaped, or frame-shaped structure, and can be detachably connected to the adjacent mesh protective body. For example, the rod-shaped reinforcing support structure is locked together with bolts to ensure that the overall structure of the protective frame is subjected to balanced forces.

[0028] A set of buffer energy-dissipating components is provided between two adjacent mesh protective structures. The buffer energy-dissipating components include multiple evenly arranged energy-dissipating balls 3. The energy-dissipating balls in the two adjacent buffer energy-dissipating components are staggered. The energy-dissipating balls adopt a composite structure and are detachably connected to the protective frame through connectors. Specifically: like Figure 5 As shown, the energy-relieving ball 3 includes an inner core ball 31, and a protective layer 32 is provided on the outside of the inner core ball. The inner core can be selected from closed-cell foam material (such as foamed polyethylene), air-filled cavity structure or elastic polymer material to provide elastic support. The protective layer can be selected from weather-resistant polymer material (such as chlorinated polyethylene), anti-corrosion elastic material or composite protective film, which can effectively resist seawater corrosion and ultraviolet aging and extend service life.

[0029] Connector 4 is a connecting rope. The connecting rope is made of tensile and corrosion-resistant materials such as nylon rope and composite fiber rope (such as aramid fiber). The surface of the energy-dissipating ball is fixed with a hanging ring 33 along the radial direction. The hanging ring is embedded in the outer protective layer and is fixed to the inner core ball by epoxy resin. One end of the connecting rope is fixed to the mesh protective body by "double strand knot + metal clamp". The other end of the connecting rope is fixed with a hook with elastic latch. The hook 41 is matched with the hanging ring and hooked together. After the hook is inserted into the hanging ring of the energy-dissipating ball, the latch automatically springs back and locks, which can prevent the hook from falling off due to the violent swing of the ball during the typhoon.

[0030] During operation, when a strong typhoon strikes the device, the typhoon airflow first passes through the outer mesh protective layer and directly impacts the energy-dissipating sphere of the buffer energy-dissipating component. The airflow pushes the sphere towards the inner mesh protective layer under the constraint and traction of the connecting parts. During this process, the airflow impacts the sphere, achieving initial energy dissipation through aerodynamic resistance. The airflow forms a stagnation zone on the windward side of the sphere, where some kinetic energy is converted into pressure potential energy. The inner core of the composite energy-dissipating sphere undergoes compression deformation under the force on the windward side, converting the kinetic energy of the airflow into its own elastic potential energy. Furthermore, the deformation process changes the airflow path on the windward side, extending the energy transfer distance and enhancing the kinetic energy absorption effect, further improving the energy dissipation effect. Subsequently, the stressed energy-dissipating sphere oscillates or slightly translates along the airflow direction, and the flexible deformation of the connecting rope further consumes kinetic energy, achieving secondary dissipation of kinetic energy. This effectively reduces the impact force of the typhoon airflow and improves the protection effect for the photovoltaic power station. Moreover, under the constraint of the connecting parts, the energy-dissipating sphere can dissipate energy evenly and will not accumulate together. After the typhoon, the inner core of the energy-relieving ball and the connecting ropes return to their original positions through their own elasticity, without the need for manual adjustment. The device can quickly restore its protective state, effectively reducing the workload and maintenance costs. Example

[0031] The difference between Example 2 and Example 1 is that several elastic limiting components are provided between two adjacent layers of mesh protective structure. In this embodiment, the elastic limiting components can be one of elastic rope nets, spring limiting columns, or flexible blocks. In this embodiment, the elastic limiting components are elastic rope nets, which are distributed at intervals of 1-5m along the extension direction of the mesh protective structure, dividing the space between two adjacent mesh protective structures into multiple independent rectangular limiting areas. At least one energy-dissipating ball is set in each limiting area. When moving, the elastic limiting components will restrict and block the excessive movement of the ball. The elastic limiting components will undergo compression deformation under the pressure of the ball, further absorbing the kinetic energy transmitted by the ball. After the typhoon, the elastic limiting components will automatically recover without manual adjustment.

[0032] It should be understood that the above-described specific embodiments of this utility model are merely illustrative or explanatory of the principles of this utility model and do not constitute a limitation thereof. Therefore, any modifications, equivalent substitutions, improvements, etc., made without departing from the spirit and scope of this utility model, such as applying the device to solve the instability problems of equipment constructed in other regions caused by wind and water flow, such as wind and sand protection for photovoltaic panels in desert areas, wind protection for photovoltaic panels in plateau areas, photovoltaic power stations in lakes, photovoltaic power stations in rivers, some communication base stations, or wind impact protection for chicken or other livestock sheds and other sheds, or water flow impact protection scenarios outside offshore cage aquaculture areas (using buffer energy dissipation components to dissipate water flow energy), should all be included within the protection scope of this utility model.

Claims

1. A typhoon protection device for an offshore photovoltaic power station, characterized in that, The system includes several protective units, which are sequentially connected circumferentially along the offshore photovoltaic power station to form a protective barrier surrounding the station. Each protective unit includes a protective frame, a buffer energy dissipation assembly, and connectors. The protective frame includes an outer frame fixedly installed around the offshore photovoltaic power station, which is connected to the outer frames of adjacent protective frames. The outer frame has at least two layers of mesh protective bodies from the outside in, and at least one set of buffer energy dissipation assemblies is provided between each pair of adjacent mesh protective bodies. Each buffer energy dissipation assembly includes multiple evenly arranged energy dissipation balls, which are detachably connected to the protective frame via connectors.

2. The typhoon protection device for offshore photovoltaic power stations according to claim 1, characterized in that, The energy-dissipating sphere includes an inner core sphere with a protective layer on the outside. The inner core sphere is detachably connected to the outer frame via a connector.

3. The typhoon protection device for offshore photovoltaic power stations according to claim 1, characterized in that, The connector is a connecting rope, one end of which is fixedly connected to the outer frame or the mesh protective body located on the outside, and the other end of which is detachably connected to the energy-dissipating ball.

4. The typhoon protection device for offshore photovoltaic power stations according to claim 1, characterized in that, The outer frame is composed of at least two rectangular frames, with adjacent rectangular frames fixedly connected; the number of rectangular frames is the same as the number of mesh protective bodies, and the mesh protective bodies are correspondingly fixedly installed inside the rectangular frames.

5. The typhoon protection device for offshore photovoltaic power stations according to claim 1, characterized in that, The mesh protective body is one of the following: polymer woven mesh, metal anti-corrosion mesh, or fiber-reinforced composite mesh.

6. The typhoon protection device for offshore photovoltaic power stations according to claim 1, characterized in that, A protective plate is fixedly installed at the bottom of the outer frame, and the protective plate is provided with water passage holes.

7. The typhoon protection device for offshore photovoltaic power stations according to claim 1, characterized in that, A reinforced support structure is provided between adjacent mesh protective structures.

8. The typhoon protection device for offshore photovoltaic power stations according to claim 1, characterized in that, Several elastic limiting members are provided between two adjacent layers of the mesh protective body; the several elastic limiting members are distributed at intervals along the extension direction of the mesh protective body, dividing the space between two adjacent mesh protective bodies into multiple independent limiting zones; at least one energy-dissipating ball is provided in each limiting zone.

9. The typhoon protection device for offshore photovoltaic power stations according to claim 1, characterized in that, The top of the outer frame is covered with a protective netting identical to that of the mesh protective body.

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