Bird repelling device of tower type fused salt photo-thermal power station

Abstract

The utility model discloses a bird repelling device of a tower type fused salt photo-thermal power station. The bird repelling device comprises a plurality of external laser bird repelling devices uniformly distributed in the circumferential direction of a heliostat field, a sound wave bird repelling device arranged at the top of a heat absorption tower and an internal laser bird repelling device uniformly distributed in the center of the heliostat field. The action ranges of the adjacent external laser bird dispeller bodies are intersected; the radius of the action range of the inner laser bird dispeller is larger than that of the action range of the outer laser bird dispeller. The inner laser bird repeller and the outer laser bird repeller are arranged at the same height along the height direction of the heliostat field; the action range of the inner laser bird repelling device intersects with the action range of the outer laser bird repelling device. The radius of the action range of the inner laser bird dispeller is larger than that of the sound wave bird dispeller, and the action range of the sound wave bird dispeller is larger than the heat radiation range of the heat absorption tower. In daily bird repelling work, laser bird repelling is used as a main part, sound wave bird repelling is used as an auxiliary part, noise pollution caused by sound wave bird repelling is effectively reduced, and factory noise limitation of the tower type fused salt photo-thermal power station is met.

Description

Technical Field

[0001] The utility model relates to the field of tower-type molten salt solar thermal power stations, in particular to a bird-repelling device for a tower-type molten salt solar thermal power station. Background Art

[0002] Reports on overseas tower-type solar thermal power projects have shown that low-flying birds passing through these areas have been burned or even killed. By implementing appropriate countermeasures, the adverse impacts on wildlife can be reduced. Similar domestic projects are primarily concentrated in the deserts of northwest China, where bird resources are scarce. Typically, acoustic bird repellent devices are installed atop the towers. This single acoustic bird repellent technology is a single approach, with simple placement and limited effectiveness. It cannot meet the needs of bird-rich areas. It is important to design practical bird repellent measures, consider relevant measures in advance, and avoid them whenever possible.

[0003] In order to protect wild birds around tower molten salt solar thermal power stations in areas with rich bird resources, a bird-repelling device for tower molten salt solar thermal power stations is needed. Utility Model Content

[0004] The purpose of the utility model is to provide a technical route that uses a laser bird repeller and an acoustic bird repeller to protect wild birds around a tower molten salt solar thermal power station in areas rich in bird resources.

[0005] In order to achieve the above purpose, the present invention provides the following technical solutions:

[0006] A bird-repellent device for a tower-type molten salt solar thermal power station, comprising a plurality of external laser bird repellers evenly distributed around the heliostat field, an acoustic bird repeller installed on the top of the heat absorption tower, and an internal laser bird repeller evenly distributed in the center of the heliostat field;

[0007] The action ranges of adjacent external laser bird repellers intersect;

[0008] The radius of the action range of the inner laser bird repellent is greater than the radius of the action range of the outer laser bird repellent; the inner laser bird repellent and the outer laser bird repellent are arranged at the same height along the height direction of the heliostat field;

[0009] The action range of the inner laser bird repellent intersects with the action range of the outer laser bird repellent, and a plurality of outer laser bird repellents are arranged around the inner laser bird repellent;

[0010] The action range of the sonic bird repeller intersects with the action range of the inner laser bird repeller, or the action range of the sonic bird repeller is located inside the action range of the inner laser bird repeller.

[0011] Furthermore, the effective range of the external laser bird repellent is controlled within the wall of the solar thermal power plant.

[0012] Furthermore, the radius of the effective range of the internal laser bird repeller is greater than the radius of the effective range of the sonic bird repeller.

[0013] In the above technical solution, the utility model has the following beneficial effects:

[0014] In order to protect wild birds around tower molten salt solar thermal power stations in areas rich in bird resources, a technical route combining laser bird repellers and sonic bird repellers is adopted, and the two bird repeller locations are reasonably arranged so that the two bird repellers can be organically combined. The combination of the two bird repellers increases the bird repeller effect, achieving the effect of "1+1>2", and ultimately meeting the bird repeller needs of the tower molten salt solar thermal power station project.

[0015] Both laser and sonic bird repellers have the advantage of being able to use remote control systems for real-time remote control, making operation simple and convenient. Laser bird repellers have the functions of automatic identification, automatic tracking, and active bird repelling, requiring no human control and operating around the clock. Compared to sonic bird repellers, laser bird repellers have a longer range and can affect birds at long distances and high altitudes, achieving "early detection and early repelling" of birds, ensuring the safety of wild birds around tower molten salt solar thermal power plants.

[0016] The bird-repellent device layout primarily utilizes lasers in the outer and central areas, with only one acoustic bird-repellent device deployed in the core molten salt absorption tower. In daily bird-repellent operations, lasers are the primary method, supplemented by acoustics, effectively reducing noise pollution caused by acoustics and meeting the noise limits for tower-type molten salt CSP plants. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0018] Figure 1 This is a schematic diagram of the bird-repelling device disclosed in the utility model from a top view;

[0019] Figure 2 This is a side structural schematic diagram of the bird-repelling device disclosed in the utility model.

[0020] Reference numerals:

[0021] External laser bird repeller 1, heat absorption tower 2, sonic bird repeller 3, internal laser bird repeller 4. DETAILED DESCRIPTION

[0022] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0023] It should be noted that the terms "above", "one end", "upper", etc. used in this article indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description. Similar expressions are only for illustrative purposes, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention; in addition, the terms "one part", "two parts", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0024] Example 1: Figure 1-2 The bird-repelling device of a tower-type molten salt solar thermal power station shown in the figure includes multiple external laser bird repellers 1 evenly distributed around the heliostat field, an acoustic bird repeller 3 arranged on the top of a heat absorbing tower 2, and an internal laser bird repeller 4 evenly distributed in the center of the heliostat field.

[0025] For heliostat fields, some heat absorbing towers 2 and the center of the heliostat field are eccentrically arranged, while others are aligned on a vertical axis. This article schematically illustrates the eccentric arrangement of the heat absorbing towers 2 and the center of the heliostat field.

[0026] like Figure 1 As shown, the active ranges of adjacent external laser bird repellers 1 intersect. This means the active ranges of the laser bird repellers 1 are spherical, with the outer surfaces of adjacent spheres intersecting. The straight-line distance between the centers of two adjacent external laser bird repellers 1 is less than the diameter of the active range. All external laser bird repellers 1 are positioned at the same height along the heliostat field. These external laser bird repellers 1 operate radially outward from the heliostat field, providing the first layer of low-altitude bird repellent.

[0027] Along the height of the heliostat field, the inner laser bird repellent 4 and the outer laser bird repellent 1 are positioned at the same height. The radius of the inner laser bird repellent 4's range is greater than that of the outer laser bird repellent 1. This allows the inner laser bird repellent 4 to effectively repel birds high above the heliostat field, keeping them above the field's vertical axis.

[0028] Multiple outer laser bird repellers 1 are arranged around the inner laser bird repeller 4, that is, the center O of the inner laser bird repeller 4 is coaxial with the circle passing through the centers of all outer laser bird repellers 1. The range of action of the inner laser bird repeller 4 intersects with the range of action of the outer laser bird repeller 1. Figure 1The range of action of the outer laser bird repeller 1, ball O, and the range of action of the inner laser bird repeller 4, ball AF need to intersect. This forms a continuous repeller layer. If there is a gap between ball O and ball AF, birds will pass through the gap smoothly.

[0029] The range of action of the sonic bird repeller 3 is greater than the heat radiation range of the heat absorbing tower 2. The sonic bird repeller 3 is used to protect the heat absorbing tower 2 in key areas.

[0030] The height requirements for the sonic bird repeller 3 and the inner laser bird repeller 4 are as follows: the action range of the sonic bird repeller 3 is located inside the action range of the inner laser bird repeller 4. That is, the action range of the inner laser bird repeller 4 completely covers the action range of the sonic bird repeller 3, such as Figure 2 The ball N is shown completely inside the ball O. Alternatively, the range of action of the sonic bird repeller 3 intersects with the range of action of the inner laser bird repeller 4 .

[0031] More preferably, the upper half of the range of action of the sonic bird repeller 3 intersects with the upper half of the range of action of the inner laser bird repeller 4. Figure 2 As shown, the range of action of the inner laser bird repellent 4, the upper half GPQH of sphere O, intersects with the range of action of the acoustic bird repellent 3, the upper half of sphere N. This ensures that the ranges of action of the acoustic bird repellent 3 and the inner laser bird repellent 4 largely overlap, enhancing protection for the heat absorption tower 2. If the acoustic bird repellent 3 were located above the outer surface of sphere O, or the inner laser bird repellent 4 were located above the outer surface of sphere N, the overlapping area between the two bird repellents would be too small.

[0032] The range of the laser bird repellent 1 is controlled within the solar thermal power plant wall to ensure that the bird repellent does not affect surrounding people and animals.

[0033] The radius of the action range of the inner laser bird repeller 4 is larger than that of the sonic bird repeller 3. In this way, the action range of the inner laser bird repeller 4 and the action range of the sonic bird repeller 3 overlap more, and the area near the heat absorption tower 2 can be protected.

[0034] Example 2: By referring to the intelligent bird-repelling facilities in various scenarios such as new airports, high-voltage transmission lines, and substations, and taking bionics as design inspiration, a laser bird repellent is mainly set up; at the same time, taking advantage of the sensitivity of birds to high-frequency sounds, an acoustic bird repellent device is auxiliary set up.

[0035] By analyzing the movement trajectory of birds, laser bird repellers are installed inside the heliostat field, with a total of 7 units; ultrasonic bird repellers are used in conjunction with laser bird repellers and are set at the top of the key heat absorption tower, with a total of 1 unit. The above two bird repellers are used to ensure that birds are not harmed by the concentrating solar collector system. Select a suitable working radius for the laser bird repeller or sonic bird repeller, such as a working radius of 300 meters or 500 meters. According to the overall layout of the solar thermal plant, Figure 1 The dotted area shown in the figure represents the protection range, and the diameter LM is about 1500 meters; the layout of the bird-repelling device is preliminarily simulated, using 6 external laser bird repellents with an irradiation distance and a working radius of 300 meters. The ball AF shown in the figure is the range of action of the 6 external laser bird repellents, and 1 internal laser bird repellent with an irradiation distance and a working radius of 500 meters. Figure 1 The ball O is the range of the inner laser bird repellent. Balls AF and O are located at the same height, and ball AF surrounds ball O. The two adjacent balls of ball AF intersect, and ball O intersects with ball AF respectively. A sonic bird repellent with a working distance and working radius of 300 meters is placed on the top of the heat absorption tower, such as Figure 2 The ball N is the scope of action of the sonic bird repeller, which serves as the final bird repeller insurance. The upper hemisphere of the ball N and the upper hemisphere of the ball O have an intersecting scope of action.

[0036] The above description is merely illustrative of certain exemplary embodiments of the present invention. It goes without saying that those skilled in the art will be able to modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A bird-repellent device for a tower-type molten salt solar thermal power station, characterized in that: The invention comprises a plurality of external laser bird repellers (1) uniformly distributed around the heliostat field, a sonic bird repeller (3) arranged on the top of a heat absorbing tower (2), and an internal laser bird repeller (4) uniformly distributed at the center of the heliostat field; The action ranges of adjacent external laser bird repellents (1) intersect; The radius of the action range of the inner laser bird repellent (4) is greater than the radius of the action range of the outer laser bird repellent (1); the inner laser bird repellent (4) and the outer laser bird repellent (1) are arranged at the same height along the height direction of the heliostat field; The action range of the inner laser bird repellent (4) intersects with the action range of the outer laser bird repellent (1), and a plurality of outer laser bird repellents (1) are arranged around the inner laser bird repellent (4); The effective range of the sonic bird repellent (3) is greater than the heat radiation range of the heat absorbing tower (2); The action range of the sonic bird repeller (3) intersects with the action range of the inner laser bird repeller (4), or the action range of the sonic bird repeller (3) is located inside the action range of the inner laser bird repeller (4).

2. The bird-repelling device for a tower-type molten salt solar thermal power station according to claim 1, characterized in that: The effective range of the external laser bird repellent (1) is controlled within the wall of the solar thermal power plant.

3. The bird-repelling device for a tower-type molten salt solar thermal power station according to claim 1, characterized in that: The radius of the action range of the internal laser bird repeller (4) is greater than the radius of the action range of the sonic bird repeller (3).

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