Arrangement form of bird repelling device suitable for tower type photo-thermal power station

Abstract

The utility model relates to the field of energy, and discloses an arrangement form of a bird repelling device suitable for a tower type photo-thermal power station, the arrangement can effectively repel birds around the photo-thermal power station, and the number of dead birds is reduced. Facilities related to the tower type photo-thermal power station mainly comprise a heat absorption tower, a heliostat and a bird repelling device platform. The heat absorption tower is located in the center of the tower type photo-thermal power station and is the highest building of the tower type photo-thermal power station, the heat absorption tower comprises a heat absorber located on the top and used for converting received solar energy into high-temperature heat energy, and the distance between the heat absorber and the bird channel is larger than 10 kilometers. The heliostats are arranged on the ground around the heat absorption tower to form an annular or field type reflector array, and the heliostats are used for focusing sunlight to the heat absorber from all angles. The bird repelling device platform is arranged on the outer side of the cylinder wall of the heat absorption tower, the scanning radius of the bird repelling device completely covers the mirror field range of the heliostat, and the bird repelling device platform is located on the upper portion of the heat absorption tower and is lower than the lowest height of a calibration target area of the heliostat.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of energy, in particular to a layout of a bird repelling device suitable for a tower type solar thermal power station. BACKGROUND

[0002] This section is intended to provide background information to facilitate a better understanding of the embodiments of the present application set forth in the claims. The content of this section is not an admission that any of the information it contains constitutes prior art to the present application, nor is it an admission that any of the information it contains is relevant to the patentability of the claims of the present application.

[0003] A tower type solar thermal power station focuses sunlight on the top of a heat absorbing tower through a large number of heliostats, generating high temperature to drive a power generation system. However, this concentrated light can pose a threat to birds flying over the power station, causing them to be burned or die due to high temperature. The use of a bird repelling device can effectively reduce the number of bird casualties in the area, thereby reducing the impact of the power station on the surrounding ecological environment.

[0004] At present, many solar power stations in China have generally used bird repelling devices. However, in the existing literature and patents, the technical path and method of the bird repelling device have been studied, but there is a lack of specific plane layout scheme guidance. This lack can result in insufficient bird repelling effect, which cannot fully protect the safety of birds. SUMMARY

[0005] The purpose of the present application is to provide a layout of a bird repelling device suitable for a tower type solar thermal power station, which can effectively expel birds around the solar thermal power station and reduce the number of bird deaths.

[0006] The present application discloses a layout of a bird repelling device suitable for a tower type solar thermal power station, comprising:

[0007] a heat absorbing tower 1, which is located at the center of the tower type solar thermal power station and is the highest building of the tower type solar thermal power station, the heat absorbing tower 1 comprises a heat absorber at the top for converting received solar energy into high temperature heat energy, the distance between the heat absorber and the bird channel is greater than 10 kilometers;

[0008] a plurality of heliostats 2, which are arranged on the ground around the heat absorbing tower 1 to form a ring-shaped or field-shaped mirror array, the heliostats 2 are used to focus sunlight from various angles to the heat absorber;

[0009] at least two bird repelling device platforms 3, which are arranged outside the cylinder wall of the heat absorbing tower 1 for carrying bird repellers, the scanning radius of the bird repellers completely covers the mirror field range of the heliostats 2, the bird repelling device platforms 3 are located at the upper part of the heat absorbing tower 1 and the height is lower than the lowest height of the calibration target area of the heliostats 2.

[0010] In a preferred embodiment, the bird repeller comprises:

[0011] A laser emission module, comprising a solid-state laser, a collimating lens and a beam shaper, the solid-state laser is used to generate a green laser beam of 520nm-570nm to be collimated by the collimating lens, the collimated green laser beam enters the beam shaper, the beam shaper is used to shape the green laser beam into a divergent spot;

[0012] A rotating mechanism coupled to the laser emission module, the rotating mechanism is configured to rotate in horizontal and vertical directions to adjust the scanning range of the laser emission module.

[0013] In a preferred example, a window hole is formed on the cylinder wall of the heat absorption tower 1, and a louver 31 is arranged in the window hole.

[0014] In a preferred example, the range of the calibration target area of the heliostat 2 is located at a height of 125m-179m from the ground of the heat absorption tower 1.

[0015] In a preferred example, the height of the bird repelling device platform 3 is located at a height of 115.9m from the ground of the heat absorption tower 1.

[0016] In a preferred example, the scanning radius of the bird repeller is 1km.

[0017] In a preferred example, an opening for partially accommodating the bird repelling device platform 3 is formed on the cylinder wall of the heat absorption tower 1, and the size of the opening is 1.5m*1.5m.

[0018] In a preferred example, the top diameter of the heat absorption tower 1 is smaller than the bottom diameter of the heat absorption tower 1.

[0019] In a preferred example, a plurality of embedded steel pipes 32 are arranged in the cylinder wall of the heat absorption tower 1.

[0020] In a preferred example, the height of the heat absorption tower 1 is 150m-210m.

[0021] In the embodiment of the present application, the bird repelling device platform is arranged outside the cylinder wall of the heat absorption tower, and the bird repeller is installed on the platform, so that the scanning range of the bird repeller can completely cover the mirror field area of the heliostat, thereby forming a protective barrier to timely drive away the birds flying into the area, significantly reducing the risk of birds entering the high-temperature focusing area. In addition, the distance between the heat absorber and the bird channel is set to be greater than 10 kilometers, further reducing the interference of the power station area to the natural migration path of the birds, effectively reducing the possibility of birds being injured by flying into the high-temperature area. In addition, the bird repelling device platform is arranged at the upper part of the heat absorption tower, and the height is lower than the lowest height of the calibration target area of the heliostat, thereby avoiding the high-temperature focusing area of the heliostat, so that the bird repelling device can be effectively protected from being burned by the reflected light of the heliostat, reducing the damage rate of the bird repelling device, prolonging the service life of the bird repelling device, ensuring the stable operation of the bird repelling device, and improving the bird repelling effect and ecological protection ability of the whole solar thermal power station.

[0022] Further, the bird repeller generates a green laser beam of 520-570 nm through a solid-state laser, and adjusts it to a divergent spot through a collimating lens and a beam shaper, so that the bird repelling range can be wider. In addition, the rotating mechanism equipped with the bird repeller can adjust the scanning range of the laser emission in the horizontal and vertical directions, ensuring that the bird repeller provides sufficient coverage to the whole heliostat area, reducing the possibility of birds entering the focusing area.

[0023] A large number of technical features are described in the specification of the present application, which are distributed in various technical solutions. If all possible combinations of technical features (i.e. technical solutions) of the present application are listed, the specification will be too long. In order to avoid this problem, each technical feature disclosed in the above summary of the application, each technical feature disclosed in the following embodiments and examples, and each technical feature disclosed in the drawings can be freely combined with each other to form various new technical solutions (these technical solutions are considered to have been described in the specification), unless such combination of technical features is technically infeasible. For example, features A+B+C are disclosed in one example, features A+B+D+E are disclosed in another example, features C and D are equivalent technical means that play the same role, and only one of them can be used in technology, and feature E can be combined with feature C in technology. Therefore, the scheme of A+B+C+D should not be considered to have been described because it is technically infeasible, and the scheme of A+B+C+E should be considered to have been described. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 is a schematic diagram of the structure of a heat absorption tower according to an embodiment of the present application.

[0025] Figure 2is a schematic diagram of a scanning range plane of a bird repelling device according to an embodiment of the present application.

[0026] Figure 3 is a schematic diagram of a setting position of a bird repelling device platform according to an embodiment of the present application.

[0027] Legend of reference signs:

[0028] 1-heat absorbing tower, 2-heliostat, 3-bird repelling device platform, 31-louvers and window holes, 32-pre-buried steel pipe. DETAILED DESCRIPTION

[0029] In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. However, it will be apparent to one ordinarily skilled in the art that the present application can be practiced without these specific details and that numerous implementation-specific variations and modifications can be possible.

[0030] To make the objects, technical solutions and advantages of the present application clearer, the embodiments of the present application will be further described in detail below with reference to the drawings.

[0031] The present application relates to a kind of bird repelling device arrangement form suitable for tower type photo-thermal power station, its structural diagram as shown in Figure 1 Including: heat absorbing tower 1, multiple heliostat 2, and at least two bird repelling device platforms 3.

[0032] Heat absorbing tower 1 is located in the center of tower type photo-thermal power station, is the highest building of tower type photo-thermal power station, heat absorbing tower 1 includes heat absorber at top, for converting received solar energy into high-temperature heat energy, the distance between heat absorber and bird channel is greater than 10 kilometers. Multiple heliostat 2 is arranged on the ground around heat absorbing tower 1, forms annular or field type mirror array, and heliostat 2 is used to focus sunlight from various angles to heat absorber. Bird repelling device platform 3 is arranged on the outer side of the cylinder wall of heat absorbing tower 1, for carrying bird repeller, the scanning radius of bird repeller completely covers the mirror field range of heliostat 2, and bird repelling device platform 3 is located in the upper portion of heat absorbing tower 1 and the height is lower than the lowest height of calibration target area of heliostat 2.

[0033] In an optional embodiment, two bird repelling device platforms 3 are oppositely arranged on the cylinder wall of a height layer of heat absorbing tower 1, and each bird repelling device platform 3 is responsible for half of the radiation area.

[0034] In an optional embodiment, conversion platform layer, elevator machine room layer, heating room platform, electrical distribution room, first maintenance platform layer, compressed air storage tank platform layer and the remaining multiple maintenance platform layers of different heights are sequentially arranged from high to low in heat absorbing tower 1. The bottom of each layer is steel grating or steel beam cast-in-place slab.

[0035] In an alternative embodiment, the heat absorption tower 1 is also provided with aviation obstruction light openings at different heights of the tower wall.

[0036] In an alternative embodiment, the bird repeller can include a laser emission module and a rotating mechanism. The laser emission module can include a solid-state laser, a collimating lens and a beam shaper, the solid-state laser being used to generate a green laser beam of 520nm-570nm, the collimating lens being used to collimate the green laser beam, and the beam shaper being used to shape the collimated green laser beam into a divergent spot. The rotating mechanism is coupled to the laser emission module and is configured to rotate in the horizontal and vertical directions to adjust the scanning range of the laser emission module. Alternatively, the rotating mechanism can also rotate in any of the x, y and z directions. The laser emission module and the rotating mechanism can be assembled in a protective shell, which has an opening for allowing the laser to be emitted to the outside world, and is made of high-temperature-resistant and corrosion-resistant materials, such as heat-resistant glass or ultraviolet-resistant coating materials, so that the bird repeller can work stably under various climate conditions.

[0037] In an alternative embodiment, the heat absorption tower 1 is also provided with window openings in the tower wall, and the window openings are provided with louvers 31. The louvers 31 can be adjusted in angle, which can effectively control the opening and closing degree of the window openings and flexibly adjust the amount of air entering. During the day when the temperature of the heat absorption tower 1 is relatively high, the louvers 31 can be partially or fully opened to allow air circulation to reduce the temperature inside the tower and prevent the equipment from overheating. At night or in cold weather, the louvers 31 can be closed or only a small part of them can be opened to reduce heat loss and help maintain the stability of the temperature inside the tower. In addition, the louvers 31 can also play a protective role to prevent dust, rain or small animals from entering the inside of the heat absorption tower 1, ensuring the cleanliness and safety of the tower. The louvers 31 can also be designed with automatic control function to adjust the opening and closing state of the louvers 31 in real time in cooperation with the temperature sensor.

[0038] In an alternative embodiment, the calibration target area of the heliostat 2 is located at a height of 125m-179m from the ground.

[0039] In an optional embodiment, the height of the bird repelling device platform 3 can be located at a height of 115.9m from the ground of the heat absorption tower 1. The height is selected after calculation and balance, taking into account the effective coverage range of the bird repelling device, the bird repelling efficiency, and the safety distance from the calibration target area of the heliostat 2, and other factors. The bird repelling device platform 3 is located at a height of 115.9m, which ensures that the bird repelling device can fully cover the mirror field area of the heliostat 2, while avoiding overlapping with the calibration target area of the heliostat 2. This height not only provides an ideal bird repelling field of view, but also avoids the direct impact of the reflected light beam of the heliostat 2 on the bird repelling device. The bird repelling device can effectively repel birds in the core area of the solar thermal power station, reducing the possibility of birds entering the high-temperature focusing area, thereby reducing the risk of birds being injured or killed due to heat burns, and enhancing the ecological friendliness of the power station. In addition, maintenance personnel can also maintain the bird repelling device through the bird repelling device platform 3.

[0040] In an optional embodiment, as shown in Figure 2 , the scanning radius of the bird repeller is preferably 1km, which can fully cover the mirror field range of the heliostat 2. The scanning radius of the bird repeller can also be adjusted according to actual needs, for example, the scanning radius can be varied according to the range of the mirror field of the heliostat 2 to ensure the maximization of the bird repelling effect and the full coverage of the mirror field area.

[0041] In an optional embodiment, an opening for partially accommodating the bird repelling device platform 3 is formed on the cylinder wall of the heat absorption tower 1, and the size of the opening is 1.5m*1.5m.

[0042] In an optional embodiment, the top diameter of the heat absorption tower 1 is smaller than the bottom diameter of the heat absorption tower 1.

[0043] In an optional embodiment, a plurality of pre-buried steel pipes 32 are arranged in the cylinder wall of the heat absorption tower 1.

[0044] In an optional embodiment, the height of the heat absorption tower 1 is 150m-210m.

[0045] In order to better understand the technical solutions of the present application, a specific example will be described below, and the details listed in the example are mainly for the purpose of understanding and do not limit the protection scope of the present application.

[0046] As shown in Figures 1-3 , the present application discloses a layout form of a bird repelling device suitable for a tower type solar thermal power station. Through reasonable structural layout and the application of the bird repelling device, the safety of birds is protected, and the normal operation and ecological friendliness of the power station are ensured. The core components of the power station include a heat absorption tower 1, an array formed by a plurality of heliostats 2, a bird repelling device platform 3, and a laser bird repeller installed on the platform.

[0047] The heat absorption tower 1 of the tower type photo-thermal power station is located at the center (approximately the center) of the power station and is the highest structure of the power station, and a heat absorber is installed at the top of the heat absorption tower 1 for converting sunlight into high-temperature heat energy to provide a continuous energy source for the power station. In order to dissipate heat and stabilize the structure, a plurality of window holes are formed in the cylinder wall of the heat absorption tower 1, and louver windows 31 are arranged in the window holes, which can ventilate and cool the tower at high temperature and can be closed when not in use to prevent the intrusion of dust and rain from the outside and to maintain the stable operation of the equipment in the tower. The diameter of the top of the heat absorption tower 1 is slightly smaller than the bottom to enhance the wind resistance and structural stability; in addition, a plurality of steel pipes are embedded in the tower wall to improve the anti-seismic and load-bearing capacity of the tower body and ensure the safety of the entire tower body in the high-altitude and high-temperature environment.

[0048] A plurality of heliostats 2 are arranged around the ground of the heat absorption tower 1 to form a ring-shaped mirror field array. The heliostats 2 can adjust the angle to reflect and focus the light onto the heat absorber at the top of the heat absorption tower 1. In order to ensure the accuracy of the heliostat 2 system, the heat absorption tower 1 sets a calibration target area within a range of 125 meters to 179 meters from the ground. This area serves as a focusing reference point for the heliostats 2, helping to adjust the reflection angle of the heliostats 2 so that the light can always be accurately concentrated on the heat absorber, improving the heat absorption efficiency.

[0049] In order to reduce the risk of birds being injured due to entering the high-temperature area, a bird repelling device platform 3 is arranged on the outside of the cylinder wall of the heat absorption tower 1, preferably at a height of 115.9 meters from the ground. This height can make the bird repelling device avoid the calibration target area of the heliostat 2 and not be damaged by the heliostat 2, and can effectively cover the entire mirror field area of the heliostat 2. The bird repelling device platform 3 has a firm load-bearing structure and is convenient for regular maintenance.

[0050] The laser bird repeller installed on the bird repelling device platform 3 repels birds by emitting green laser light. The emission module of the laser bird repeller includes a solid-state laser, a collimating lens and a beam shaper, which can generate a green laser beam with a wavelength of 520nm-570nm. According to research, this wavelength has a strong stimulating effect on the vision of birds, effectively repelling birds. The laser beam first passes through the collimating lens to form a parallel light beam, thereby improving the energy concentration, and then enters the beam shaper to expand the light beam into a diverging spot, enhancing the coverage effect on a large area. The laser bird repeller is also equipped with a rotating mechanism that can freely rotate in the horizontal and vertical directions, achieving a scanning radius of 1 kilometer to ensure that the entire heliostat 2 area is within the bird repelling range.

[0051] It has to be understood that, in the present patent application, the terms "comprising", "including", or any other variant thereof, are intended to cover a non-exclusive inclusion, such that processes, methods, articles, or devices that comprise a list of elements are not limited to those elements, but can also comprise other elements not expressly listed, or even other elements inherent to such processes, methods, articles, or devices. Without further limitation, an element preceded by "comprising" does not, without more constraints, foreclose the existence of additional identical elements in the process, method, article, or device that comprises the recited element. In the present patent application, if a certain action is mentioned as being performed "according to" a certain element, this means that the action is performed at least according to this element, including both the case where the action is performed only according to this element, and the case where the action is performed according to this element and other elements. The expressions "a plurality of", "several", "a number of", etc. include 2, 2 times, 2 kinds, and more than 2, more than 2 times, more than 2 kinds.

[0052] All documents mentioned in the present application are considered to be entirely incorporated in the disclosure of the present application, in order to be able to be used as a basis for amendment, if necessary. Furthermore, it is understood that, after reading the above disclosure of the present application, the person skilled in the art can make various modifications or adaptations of the present application, these equivalent forms also falling within the scope of the present application as claimed.

Claims

1. A bird repellent device arrangement suitable for a tower-type solar thermal power station, characterized in that: include: A heat absorption tower (1), the heat absorption tower (1) is located at the center of the tower-type solar thermal power station and is the tallest building of the tower-type solar thermal power station. The heat absorption tower (1) includes a heat absorber located at the top, which is used to convert received solar energy into high-temperature thermal energy. The distance between the heat absorber and the bird channel is greater than 10 kilometers; A plurality of heliostats (2) are arranged on the ground around the heat absorption tower (1) to form a ring-shaped or field-shaped reflector array, and the heliostats (2) are used to focus sunlight onto the heat absorber from various angles; At least two bird-repelling device platforms (3) are arranged outside the cylindrical wall of the heat absorbing tower (1) and are used to carry bird-repelling devices. The scanning radius of the bird-repelling devices completely covers the mirror field range of the heliostat (2). The bird-repelling device platforms (3) are located on the upper part of the heat absorbing tower (1) and are lower than the lowest height of the calibration target area of ​​the heliostat (2).

2. The arrangement of the bird-repellent device for a tower-type solar thermal power station according to claim 1 is characterized in that: The bird repeller comprises: A laser emission module includes a solid-state laser, a collimating lens, and a beam shaper. The solid-state laser is used to generate a 520nm-570nm green laser beam that is collimated by the collimating lens. The collimated green laser beam enters the beam shaper, which is used to shape the green laser beam into a divergent light spot. A rotating mechanism is coupled to the laser emitting module and is configured to rotate in horizontal and vertical directions to adjust a scanning range of the laser emitting module.

3. The arrangement of the bird-repellent device for a tower-type solar thermal power station according to claim 1 is characterized in that: A window hole is provided on the cylinder wall of the heat absorption tower (1), and a shutter (31) is provided in the window hole.

4. The arrangement of the bird-repellent device for a tower-type solar thermal power station according to claim 1 is characterized in that: The range of the calibration target area of ​​the heliostat (2) is located at a height of 125m-179m above the ground of the heat absorption tower (1).

5. The arrangement of the bird-repellent device for a tower-type solar thermal power station according to claim 1 is characterized in that: The bird-repelling device platform (3) is located at a height of 115.9 m above the ground of the heat absorption tower (1).

6. The arrangement of the bird-repellent device for a tower-type solar thermal power station according to claim 1 is characterized in that: The scanning radius of the bird repeller is 1 km.

7. The arrangement of the bird-repellent device for a tower-type solar thermal power station according to claim 1 is characterized in that: An opening for partially accommodating the bird-repelling device platform (3) is provided on the wall of the heat absorption tower (1), and the size of the opening is 1.5m*1.5m.

8. The arrangement of the bird-repellent device for a tower-type solar thermal power station according to claim 1, characterized in that: The top diameter of the heat absorption tower (1) is smaller than the bottom diameter of the heat absorption tower (1).

9. The arrangement of the bird-repellent device for a tower-type solar thermal power station according to claim 1, characterized in that: A plurality of pre-buried steel pipes (32) are provided in the cylinder wall of the heat absorption tower (1).

10. The arrangement of the bird repellent device for a tower-type solar thermal power station according to any one of claims 1 to 9, characterized in that: The height of the heat absorption tower (1) is 150m-210m.

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