Airport photovoltaic box transformer substation under clearance limiting condition

Abstract

The utility model relates to the technical field of airport design construction and photovoltaic power generation, and discloses an airport photovoltaic box transformer substation under clearance limiting conditions, which comprises a box-type transformer, a box transformer substation foundation and a mounting structure. The box-type transformer is positioned in an accommodating space of the airport slope; the box transformer foundations are located on two sides of the bottom of the box-type transformer; the mounting structure comprises a pull rod, one end of the pull rod is fixed on the airport slope, and the other end is connected with the box-type transformer. One end of a pull rod in the mounting structure is fixed on the airport slope, and the other end is connected with the box-type transformer. The box-type transformer is connected with the airport slope through the pull rod, additional fixing and supporting are provided, the stability of the overall structure is enhanced, and the box-type transformer is prevented from moving or overturning under the clearance limiting condition. In addition, due to the fact that certain deformation or unevenness possibly exists after the airport slope is excavated downwards, the pull rod can adapt to the change, and it is guaranteed that the box-type transformer can still be stably connected under different slope conditions.

Description

Technical Field

[0001] The utility model relates to the technical fields of airport design and construction and photovoltaic power generation, and particularly relates to an airport photovoltaic box transformer under clearance limit conditions. Background Art

[0002] As an important transportation hub, the airport consumes a huge amount of energy. To comply with the development requirements of energy conservation and emission reduction and promote the realization of the "dual carbon" goal, major airports have started to build photovoltaic power generation projects to reduce dependence on traditional energy. In an airport photovoltaic power station, the role of the photovoltaic box transformer is to convert the direct current generated by the photovoltaic panels into alternating current and boost the voltage to meet the requirements of grid connection.

[0003] There are strict clearance conditions for airport flight takeoff and landing. To ensure airport flight safety, during the airport construction process, clearance treatment needs to be carried out on the ultra-high mountain bodies near the airport runway, so large-area airport slopes will be formed. These airport slopes are relatively flat and open with good sunshine conditions, making them good sites for the construction of large-scale photovoltaic power generation systems. To ensure airport aviation safety, the height of the airport photovoltaic power generation system equipment must be below the airport clearance obstacle limitation surface. The clearance control of the airport photovoltaic power generation system has become one of the key points and difficulties in the airport photovoltaic design and construction process. The large-scale airport photovoltaic power generation system site is generally built on the airport slope. The relatively high equipment in the photovoltaic field area includes photovoltaic brackets and photovoltaic box transformers. The clearance margin of the airport slope is relatively small, generally only about 1 meter. The photovoltaic brackets can meet the airport slope clearance requirements by adjusting the installation inclination angle and azimuth angle to reduce the installation height. However, the height of the box transformer in the photovoltaic power generation system is about 3 meters. It is difficult to meet the airport clearance requirements using the conventional photovoltaic box transformer design and installation method, which has become one of the main technical difficulties in airport photovoltaic design and construction. Content of the Utility Model

[0004] The embodiment of the utility model aims to provide an airport photovoltaic box transformer under clearance limit conditions to solve the technical problems proposed in the prior art.

[0005] The embodiment of the utility model solves its technical problems by adopting the following technical solutions:

[0006] Provide an airport photovoltaic box transformer under clearance limit conditions, which is applied to the airport slope. The airport slope is excavated downward to form a receiving space, including:

[0007] A box transformer, which is located in the receiving space of the airport slope;

[0008] A box transformer foundation, which is located on both sides of the bottom of the box transformer;

[0009] Installation structure, the installation structure includes a tie rod, one end of the tie rod is fixed to the airport slope, and the other end is connected to the box-type transformer.

[0010] In some embodiments, the installation structure further includes an independent foundation;

[0011] The independent foundation is arranged on the airport slope and close to the box-type transformer;

[0012] The tie rod is connected to the independent foundation.

[0013] In some embodiments, there are multiple independent foundations, and the multiple independent foundations are all located on the airport slope and arranged on the periphery of the box-type transformer. Each independent foundation is connected to the box-type transformer through the tie rod.

[0014] In some embodiments, the installation structure further includes a connecting rod, and the connecting rod is located between adjacent two tie rods and connected to the adjacent two tie rods.

[0015] In some embodiments, a heat dissipation channel is formed between the box-type transformer and the accommodation space through the box transformer foundation.

[0016] In some embodiments, water baffle plates are arranged on the high side and the left and right sides of the accommodation space, and the horizontal height of the water baffle plates is higher than the height of the box-type transformer located inside the accommodation space.

[0017] In some embodiments, a maintenance manhole is arranged on the periphery of the box-type transformer, and the maintenance manhole is located on the lower side of the airport slope.

[0018] In some embodiments, ventilation holes are arranged on the box transformer foundation.

[0019] In some embodiments, the height of the ventilation holes is not greater than 0.1 m.

[0020] Compared with the prior art, in the airport photovoltaic box substation under the clearance limit conditions provided by the embodiments of the present utility model, one end of the pull rod in the installation structure is fixed on the airport slope, and the other end is connected to the box-type transformer. The box-type transformer is connected to the airport slope through the pull rod, providing additional fixation and support, enhancing the stability of the overall structure, and preventing the box-type transformer from shifting or overturning under the clearance limit conditions. And because there may be certain deformations or unevenness after the airport slope is excavated, the pull rod can adapt to this change to ensure that the box-type transformer can still maintain a stable connection under different slope conditions. The setting of the pull rod can also disperse the stress on the box-type transformer, avoid excessive local stress, and thus extend the service life of the equipment. Through such a setting, the box-type transformer can be stably installed in the accommodating space of the airport slope under the clearance limit conditions, while ensuring the safe operation of the equipment and the convenience of maintenance and repair. This design adapts to the special environment of the airport slope and the clearance limit requirements, ensuring the reliable operation of the airport photovoltaic box substation. Brief Description of the Drawings

[0021] One or more embodiments are exemplarily illustrated by the figures in the corresponding drawings. These exemplary illustrations do not limit the embodiments. Elements with the same reference numerals in the drawings are represented as similar elements, unless otherwise stated, and the figures in the drawings do not constitute a scale limitation.

[0022] Figure 1 is a schematic structural diagram of the airport photovoltaic box substation under the clearance limit conditions provided by the present utility model;

[0023] Figure 2 is a top view of the airport photovoltaic box substation under the clearance limit conditions provided by the present utility model;

[0024] Figure 3 is a schematic structural diagram of the installation structure provided by the present utility model.

[0025] Markings in the figure:

[0026] 100, Airport photovoltaic box substation under clearance limit conditions; 10, Box-type transformer; 20, Box substation foundation; 21, Ventilation hole; 30, Installation structure; 31, Pull rod; 32, Independent foundation; 33, Connecting rod; 200, Airport slope; 40, Accommodating space; 50, Maintenance manhole; 60, Water baffle. Detailed Description of the Embodiments

[0027] To facilitate the understanding of the present utility model, the present utility model will be described in more detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that when an element is expressed as "connected" to another element, it can be directly on the other element, or there can be one or more intermediate elements therebetween. The terms "upper", "lower", "left", "right", "upper end", "lower end", "top", and "bottom" etc. used in this specification indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for facilitating the description of the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be construed as a limitation to the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0028] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by those skilled in the technical field to which the present utility model belongs. The terms used in the specification of the present utility model are only for the purpose of describing specific embodiments and are not used to limit the present utility model.

[0029] The following will be combined with Figures 1 to 3 , and through specific embodiments, the airport photovoltaic box substation 100 and construction method provided by the embodiments of the present application under the clearance limit conditions will be described in detail.

[0030] Please refer to Figures 1 to 3 , Figure 1 which is a schematic structural diagram of the airport photovoltaic box substation provided by the present utility model under the clearance limit conditions; Figure 2 which is a top view of the airport photovoltaic box substation provided by the present utility model under the clearance limit conditions; Figure 3 which is a schematic structural diagram of the installation structure provided by the present utility model. The airport photovoltaic box substation 100 provided by one embodiment of the present utility model is applied to the airport slope 200. The airport slope 200 is excavated downward to form a receiving space 40, and includes a box-type transformer 10, a box substation foundation 20, and an installation structure 30. The box-type transformer 10 is located in the receiving space 40 of the airport slope 200; the box substation foundation 20 is located on both sides of the bottom of the box-type transformer 10; the installation structure 30 includes a tie rod 31, one end of the tie rod 31 is fixed to the airport slope 200, and the other end is connected to the box-type transformer 10.

[0031] The box-type transformer 10, as the core equipment, can convert photovoltaic direct current into alternating current, and perform voltage regulation and distribution. The box substation foundation 20 is arranged in the receiving space 40 of the slope, provides a stable foundation for the box-type transformer 10, and ensures that the box-type transformer 10 can be placed on the airport slope 200 and operate safely.

[0032] One end of the tie rod 31 in the installation structure 30 is fixed to the airport slope 200, and the other end is connected to the box-type transformer 10. The box-type transformer 10 is connected to the airport slope 200 through the tie rod 31, providing additional fixation and support, enhancing the stability of the overall structure, and preventing the box-type transformer 10 from shifting or tipping over under the clearance limit conditions. And because there may be certain deformations or unevenness after the airport slope 200 is excavated, the tie rod 31 can adapt to this change to ensure that the box-type transformer 10 can still maintain a stable connection under different slope conditions. The setting of the tie rod 31 can also disperse the stress on the box-type transformer 10, avoiding excessive local stress, thereby extending the service life of the equipment. Through such a setting, the box-type transformer 10 can be stably installed in the accommodation space 40 of the airport slope 200 under the clearance limit conditions, while ensuring the safe operation of the equipment and the convenience of maintenance and repair. This design adapts to the special environment of the airport slope 200 and the clearance limit requirements, ensuring the reliable operation of the airport photovoltaic box substation.

[0033] In some embodiments, the installation structure 30 further includes an independent foundation 32; the independent foundation 32 is arranged on the airport slope 200 and close to the box-type transformer 10; the tie rod 31 is connected to the independent foundation 32.

[0034] The setting of the independent foundation 32 increases the contact area with the airport slope 200, thereby improving the stability of the entire system. It disperses the pressure borne by the box substation foundation 20, reduces the impact of the clearance limit conditions on the slope stability, and ensures the safe operation of the photovoltaic box substation under the clearance limit conditions. Due to the accommodation space 40 formed by excavating the airport slope 200, there may be certain deformations and settlements. The independent foundation 32 can reduce the relative displacement and settlement difference between the box-type transformer 10 and the slope, thereby reducing the stress and potential problems caused by the deformation. The connection method of the tie rod 31 and the independent foundation 32 facilitates the installation and maintenance of the box-type transformer 10. During the installation process, the length of the tie rod 31 can be adjusted to accurately align the box substation foundation 20 and the independent foundation 32, ensuring the accuracy and stability of the installation. During maintenance, the tie rod 31 can be used for lifting or supporting, providing convenient working conditions for maintenance personnel. When natural disasters such as earthquakes occur, the independent foundation 32 and the tie rod 31 can provide a certain seismic resistance. They can reduce the displacement and damage risk of the box-type transformer 10 under the action of an earthquake, ensuring the operation reliability of the power equipment. Through such a setting, the independent foundation 32 can improve the stability of the airport photovoltaic box substation, reduce deformation and settlement, adapt to geological conditions, facilitate installation and maintenance, and enhance its seismic performance, thereby ensuring the reliable operation of the photovoltaic system under the clearance limit conditions and protecting the equipment and the environment.

[0035] In some embodiments, a plurality of independent foundations 32 are provided. The plurality of independent foundations 32 are all located on the airport slope 200 and are arranged on the peripheral side of the box-type transformer 10. Each independent foundation 32 is connected to the box-type transformer 10 through a tie rod 31.

[0036] By arranging a plurality of independent foundations 32 on the peripheral side of the box-type transformer 10 and using tie rods 31 for connection, a stable frame structure can be formed. The combination of such multiple foundations and tie rods 31 increases the anti-overturning ability and overall stability of the system, ensuring that the box-type transformer will not tilt or become unstable under the clearance limit conditions. Each independent foundation 32 shares the weight and load of the box-type transformer 10, avoiding single-point concentrated stress. This helps to evenly distribute the stress and reduces the stress concentration problem that may occur at a single foundation position, thereby improving the durability of the foundation and the box-type transformer. The structure of the plurality of independent foundations 32 and tie rods 31 can provide better seismic performance. When natural disasters such as earthquakes occur, this structure can reduce the displacement and damage risk of the box-type transformer 10 and ensure the normal operation of the power system. By increasing the number and distribution of the independent foundations 32 and tie rods 31, the reliability of the system can be improved. Even if individual foundations or tie rods 31 have problems, the other foundations and tie rods 31 can still bear part of the load, reducing the scope of influence of the failure. Through such an arrangement, the stability and reliability of the airport photovoltaic box-type transformer under the clearance limit conditions can be enhanced, ensuring its safe operation and reducing the failure risk.

[0037] In some embodiments, the installation structure 30 further includes a connecting rod 33. The connecting rod 33 is located between two adjacent tie rods 31 and is connected to the two adjacent tie rods 31.

[0038] The connecting rod 33 is located between two adjacent tie rods 31 and is connected to them. The setting of the connecting rod 33 connects the adjacent tie rods 31 together to form an integral structure. This increases the rigidity and integrity of the entire installation structure 30 and improves the ability to resist external forces and deformation. The presence of the connecting rod 33 can effectively prevent the tie rods 31 from undergoing separate displacement or deformation under the clearance limit conditions, thus ensuring the stable installation of the box-type transformer 10. It increases the stability and reliability of the system and reduces potential safety risks. Through the connection of the connecting rod 33, the load can be more evenly distributed on the adjacent tie rods 31. This helps to avoid overloading of individual tie rods 31 or uneven stress distribution, and extends the service life of the tie rods 31 and the entire installation structure 30. The setting of the connecting rod 33 further enhances the stability and reliability of the installation structure 30 of the airport photovoltaic box-type transformer under the clearance limit conditions.

[0039] In some embodiments, a heat dissipation channel is formed between the box-type transformer 10 and the accommodating space 40 through the box-type transformer foundation 20. By forming a heat dissipation channel between the box-type transformer foundation 20 and the accommodating space 40, air can circulate naturally, promoting the heat dissipation of the box-type transformer 10. This helps to dissipate the heat generated during the operation of the transformer, reduce the oil temperature, and improve the efficiency of the transformer. Good heat dissipation can ensure the normal operation of the box-type transformer 10, reduce failures and losses caused by overheating. This helps to improve the efficiency of the entire photovoltaic system and reduce energy consumption.

[0040] In some embodiments, water baffle plates 60 are provided on the high side and the left and right sides of the accommodating space 40, and the horizontal height of the water baffle plates 60 is higher than the height of the box-type transformer 10 located inside the accommodating space 40. The airport area may face weather conditions such as rainfall and snowfall. Setting the water baffle plates 60 can effectively block external moisture from entering the accommodating space 40, reducing the risk of the box-type transformer 10 being flooded. Water immersion may cause the transformer winding to be damp, the insulation to decline, and even lead to failures or damage. The box-type transformer 10 is an electrical equipment and is very sensitive to moisture. Preventing water from entering the accommodating space 40 can protect the internal components of the transformer, extend its service life, reduce maintenance costs and the incidence of equipment failures. Moisture entering the transformer may cause short-circuit failures, affecting the reliability of power supply. The presence of the water baffle plates 60 can reduce this risk and ensure the stable power supply of the airport.

[0041] In some embodiments, a maintenance manhole 50 is provided on the peripheral side of the box-type transformer 10, and the maintenance manhole 50 is located on the lower side of the airport slope 200 with a lower terrain. Setting a maintenance manhole 50 around the box-type transformer 10 can facilitate the cable operation and maintenance of the bottom foundation pit of the box-type transformer 10. And setting the maintenance manhole 50 on the lower side of the airport slope 200 with a lower terrain can increase the clearance margin of the box-type transformer, thereby reducing the earthwork excavation volume for the installation of the photovoltaic box-type transformer.

[0042] In some embodiments, ventilation holes 21 are provided on the box-type transformer foundation 20. The height of the ventilation holes 21 is not greater than 0.1 m. It can facilitate the ventilation and air exchange of the bottom foundation pit of the box-type transformer 10 to achieve the effect of heat dissipation. And the height of the ventilation holes is preferably within 0.1 meter, which can reduce the height of the box-type transformer foundation 20 and is beneficial to reducing the excavation depth.

[0043] It should be particularly noted that the airport photovoltaic box-type transformer 100 under the clearance limit conditions provided by the embodiments of the present invention only shows the parts related to the technical problems to be solved by the embodiments of the present invention. It can be understood that the airport photovoltaic box-type transformer 100 under the clearance limit conditions provided by the embodiments of the present invention further includes other structures for realizing the functions of the airport photovoltaic box-type transformer 100 under the clearance limit conditions, which will not be elaborated herein one by one.

[0044] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; under the idea of the present invention, the technical features in the above embodiments or different embodiments can also be combined, and the steps can be implemented in any order, and there are many other variations in different aspects of the present invention as described above. For the sake of brevity, they are not provided in detail; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the various embodiments of the present invention.

Claims

1. An airport photovoltaic box transformer under clearance restriction conditions, applied to the airport slope, the airport slope is dug down to form an accommodation space, characterized in that: include: A box-type transformer, wherein the box-type transformer is located in the accommodation space of the airport slope; Box transformer foundation, the box transformer foundation is located on both sides of the bottom of the box transformer; The mounting structure comprises a pull rod, one end of which is fixed to the airport slope, and the other end of which is interconnected with the box-type transformer.

2. The airport photovoltaic box transformer under clearance restriction conditions according to claim 1 is characterized in that: The mounting structure also includes an independent foundation; The independent foundation is arranged on the slope of the airport and close to the box-type transformer; The pull rod is connected to the independent foundation.

3. The airport photovoltaic box transformer under clearance restriction condition according to claim 2 is characterized in that: There are multiple independent foundations, all of which are located on the airport slope and arranged around the box-type transformer, and each of the independent foundations is connected to the box-type transformer through the pull rod.

4. The airport photovoltaic box transformer under clearance restriction condition according to claim 3 is characterized in that: The mounting structure further comprises a connecting rod, which is located between two adjacent pull rods and is interconnected with the two adjacent pull rods.

5. The airport photovoltaic box transformer under clearance restriction condition according to claim 1 is characterized in that: The box-type transformer forms a heat dissipation channel between the box-type transformer base and the accommodating space.

6. The airport photovoltaic box-type transformer under clearance restriction condition according to claim 1 is characterized in that: Water baffles are arranged on the high side and the left and right sides of the accommodating space, and the horizontal height of the water baffles is higher than the height of the box-type transformer located in the accommodating space.

7. The airport photovoltaic box-type transformer under clearance restriction condition according to claim 2 is characterized in that: A maintenance manhole is arranged on the peripheral side of the box-type transformer, and the maintenance manhole is located on the lower side of the airport slope.

8. The airport photovoltaic box transformer under clearance restriction conditions according to claim 1 is characterized in that: The box-type transformer base is provided with a vent hole.

9. The airport photovoltaic box-type transformer under clearance restriction condition according to claim 8 is characterized in that: The height of the vent hole is no more than 0.1 m.

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