Hydropower station pipeline rockfall damage prevention device and pipeline system

Abstract

The invention provides a hydropower station pipeline rockfall damage prevention device and a pipeline system.The hydropower station pipeline rockfall damage prevention device comprises a first protection layer, a second protection layer and a plurality of anti-collision frames, the multiple anti-collision frames are connected in the circumferential direction of a pipeline and wrap the pipeline, the first protection layer is arranged on the outer side of the anti-collision frames, and the second protection layer is arranged on the outer side of the anti-collision frames; the second protective layer is arranged between the anti-collision frame and the pipeline; the anti-collision frame comprises a plurality of anti-collision rods and two installation assemblies, the two installation assemblies are oppositely arranged in the extending direction of the pipeline, the installation assemblies are provided with inner wall faces matched with the peripheral face of the pipeline, one end of each anti-collision rod is rotationally connected to one of the two installation assemblies, and the other end of each anti-collision rod is rotationally connected to the other installation assembly. The other end of the anti-collision rod is rotationally connected to the other one of the two installation assemblies, and the extending direction of the anti-collision rod is consistent with the extending direction of the pipeline. Comprehensive and effective rockfall prevention protection can be provided for the hydropower station pipeline, and the safety and durability of facilities are improved.

Description

Technical Field

[0001] The invention relates to the technical field of pipeline protection for a hydropower station, and in particular to a device for preventing pipelines from being damaged by falling rocks in a hydropower station and a pipeline system for a hydropower station. Background Art

[0002] During the construction and operation of hydropower stations, especially in mountainous areas, some pipelines are exposed to the natural environment for a long time and are easily affected by geological disasters such as rockfall and landslides. In related technologies, pipeline protection mainly adopts the method of stabilization piers + protective nets, but this method is difficult to construct and costly, and it is difficult to achieve full coverage and efficient protection against disasters such as large rockfalls or high-speed landslides. Summary of the invention

[0003] The present invention is based on the inventor's discovery and understanding of the following facts and problems:

[0004] In the construction and operation of hydropower stations in mountainous areas, a comprehensive solution of stabilizing piers and protective nets is mostly adopted to resist the potential threats of geological disasters such as falling rocks and landslides in the natural environment. Among them, stabilizing piers, as a heavy support structure, are designed to enhance the support and stability of the pipeline to resist the vertical and horizontal impact forces from the ground. The protective nets are usually installed above or around the pipeline to intercept flying objects such as falling rocks and prevent them from directly hitting the pipeline. However, this seemingly comprehensive protection solution faces many challenges in actual application.

[0005] First, the construction is difficult. Under the complex and changeable terrain conditions in the mountainous area, the construction of the town pier requires precise geological exploration and complex construction technology to ensure its stability and durability. At the same time, the installation of the protective net also requires high-altitude operations on steep slopes, which increases the risk and difficulty of construction.

[0006] Secondly, the cost is high. The construction of the town pier requires a lot of construction materials and human resources, and the purchase, installation and maintenance of the protective net also require considerable expenses. These costs are a considerable economic burden for the construction and operation of the hydropower station.

[0007] More importantly, for extreme disasters such as large rockfalls or high-speed landslides, the traditional anchor pier + protective net method often fails to provide full coverage and efficient protection. Although anchor piers can enhance the support of pipelines, they may still be damaged when facing huge impact forces; and although protective nets can intercept some rockfalls, they are not effective in protecting against high-speed, large-volume rockfalls or landslides.

[0008] To this end, an embodiment of the present invention provides a device for preventing pipelines from falling rocks and a pipeline system for a hydropower station, which can provide comprehensive and effective protection against falling rocks for pipelines in the hydropower station and improve the safety and durability of the facilities.

[0009] The present invention provides a device for preventing pipelines from being damaged by falling rocks in a hydropower station, which comprises a first protective layer, a second protective layer and a plurality of anti-collision frames, wherein the plurality of anti-collision frames are connected around the circumference of the pipeline and wrapped around the outside of the pipeline, the first protective layer is arranged on the outside of the anti-collision frame, and the second protective layer is arranged between the anti-collision frame and the pipeline; the anti-collision frame comprises a plurality of anti-collision rods and two mounting components, the two mounting components are arranged opposite to each other along the extension direction of the pipeline, so the mounting components have an inner wall surface adapted to the outer circumferential surface of the pipeline, one end of the anti-collision rod is rotatably connected to one of the two mounting components, and the other end of the anti-collision rod is rotatably connected to the other of the two mounting components, and the extension direction of the anti-collision rod is consistent with the extension direction of the pipeline.

[0010] In summary, the device for preventing rockfall damage to pipelines in hydropower stations provided by the embodiment of the present invention is composed of a first protective layer, a second protective layer and a plurality of anti-collision frames, forming a multi-level protection system. As the outermost layer, the first protective layer can directly resist the initial impact of rockfall, disperse and absorb a large amount of impact force. The anti-collision frame is composed of a plurality of anti-collision bars and two mounting assemblies arranged relatively along the extension direction of the pipeline. The two ends of the anti-collision bars are rotatably connected to the mounting assemblies. The design is flexible and can effectively disperse the impact force and maintain overall stability when impacted. The extension direction of the anti-collision bar is consistent with the pipeline, which enhances the continuity of protection. The second protective layer is located between the anti-collision frame and the pipeline, which plays a buffering role, further reduces the impact force, protects the pipeline from direct damage, and provides additional support and stability for the anti-collision frame. On the whole, the device provides comprehensive and effective anti-rockfall protection for the pipelines of hydropower stations, and improves the safety and durability of the facilities.

[0011] In some embodiments, the mounting assembly includes an arc frame, a first plate and a connecting rod, one end of the connecting rod is rotatably connected to the arc frame, and the other end of the connecting rod is rotatably connected to the first plate. A fixing hole is provided on the first plate, and the anti-collision rod is inserted into the fixing hole.

[0012] In some embodiments, the mounting assembly also includes a second plate, a accommodating cavity is provided in the arc-shaped frame, a mounting hole is opened on the side wall of the accommodating cavity, the connecting rod can be rotatably passed through the mounting hole, and the two ends of the connecting rod are correspondingly connected to the first plate and the second plate.

[0013] In some embodiments, two connecting rods are provided, and the two connecting rods are arranged side by side along the outer circumference of the pipe.

[0014] In some embodiments, the first protective layer includes a protective layer, a buffer layer and an appearance layer, and the appearance layer, the buffer layer and the protective layer are sequentially stacked along the radial direction of the pipeline and toward the pipeline.

[0015] In some embodiments, the protective layer is made of stainless steel, the buffer layer is made of polyurethane foam, and the appearance layer is made of thermoplastic polyurethane.

[0016] In some embodiments, the protective layer, the buffer layer and the appearance layer are connected by rivets.

[0017] In some embodiments, the mounting assembly further includes a positioning column, the arc frame is provided with an assembly hole, the first protective layer is provided with a through hole, the through hole is arranged corresponding to the assembly hole, and one end of the positioning column passes through the through hole and is connected to the assembly hole of the arc frame.

[0018] In some embodiments, the second protective layer is made of rubber material.

[0019] In addition, the hydropower station pipeline system provided by the embodiment of the present invention includes a pipeline and the hydropower station pipeline rockfall damage protection device described in any of the above embodiments, and the anti-collision frames are arranged in sequence along the extension direction of the pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 The present invention is a three-dimensional schematic diagram of a device for preventing pipelines from being damaged by falling rocks in a hydropower station provided by an embodiment of the present invention.

[0021] Figure 2 The present invention is a schematic structural diagram of an anti-collision frame in a device for preventing pipelines from being damaged by falling rocks in a hydropower station provided by an embodiment of the present invention.

[0022] Figure 3 The present invention is a three-dimensional schematic diagram of an anti-collision frame in a device for preventing pipelines from being damaged by falling rocks in a hydropower station provided by an embodiment of the present invention.

[0023] Figure 4 yes Figure 2 The shown is a partial enlarged view of the anti-collision frame at point A.

[0024] Figure 5 yes Figure 2 The shown is a partial enlarged view of the anti-collision frame at position B.

[0025] Figure 6 It is a structural schematic diagram of the first protective layer in a device for preventing pipeline damage from falling rocks in a hydropower station provided by an embodiment of the present invention.

[0026] Reference numerals: 100, device for preventing pipeline from being damaged by falling rocks in a hydropower station; 200, pipeline;

[0027] 10. First protective layer; 11. Protection layer; 12. Buffer layer; 13. Appearance layer; 20. Second protective layer; 30. Anti-collision frame; 31. Anti-collision rod; 32. Installation assembly; 321. Arc frame; 3211. Accommodation cavity; 3212. Installation hole; 3213. Fixing hole; 3214. Fixing rod; 3215. Assembly hole; 322. First plate; 323. Connecting rod; 324. Second plate; 33. Installation claw; 331. Positioning hole; 332. Stud; 34. Positioning column. DETAILED DESCRIPTION

[0028] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0029] like Figures 1 to 6 As shown, an embodiment of the present invention provides a device 100 for preventing pipelines from falling rocks in a hydropower station, which includes a first protective layer 10, a second protective layer 20 and a plurality of anti-collision frames 30, wherein the plurality of anti-collision frames 30 are connected around the circumference of the pipeline 200 and wrapped around the outside of the pipeline 200, the first protective layer 10 is arranged on the outside of the anti-collision frame 30, and the second protective layer 20 is arranged between the anti-collision frame 30 and the pipeline 200. The anti-collision frame 30 includes a plurality of anti-collision rods 31 and two mounting assemblies 32, the two mounting assemblies 32 are arranged opposite to each other along the extension direction of the pipeline 200, the mounting assemblies 32 have inner wall surfaces adapted to the outer circumference of the pipeline 200, one end of the anti-collision rod 31 is rotatably connected to one of the two mounting assemblies 32, and the other end of the anti-collision rod 31 is rotatably connected to the other of the two mounting assemblies 32, and the extension direction of the anti-collision rod 31 is consistent with the extension direction of the pipeline 200.

[0030] Specifically, the first protective layer 10, the anti-collision frame 30 and the second protective layer 20 sequentially form a multi-layered protection system on the outside of the pipeline 200, which can effectively resist the impact of falling rocks. Among them, the first protective layer 10, as the outermost layer of defense, can directly resist the initial impact of falling rocks, disperse and absorb a large amount of impact force, and help prevent falling rocks from penetrating deeper protective structures. The anti-collision frame 30 is surrounded by a plurality of anti-collision rods 31 and arranged on the outside of the pipeline 200 to ensure that it fits the outer peripheral surface of the pipeline 200. In addition, the two ends of the anti-collision rod 31 are rotatably connected to the mounting assembly 32, so that the anti-collision rod 31 can be flexibly rotated when impacted, effectively dispersing the impact force while maintaining overall stability. The extension direction of the anti-collision rod 31 is consistent with the extension direction of the pipeline 200, which not only enhances the continuity of protection, but also enables the entire device to perform well when facing the impact of falling rocks from different directions.

[0031] In addition, the second protective layer 20 is disposed between the anti-collision frame 30 and the pipe 200 , which can further mitigate the impact force when the anti-collision frame 30 is impacted, protect the pipe 200 from direct damage, and also provide additional support and stability for the anti-collision frame 30 .

[0032] In summary, the device 100 for preventing rockfall damage to a hydropower station pipeline provided by the embodiment of the present invention is composed of a first protective layer 10, a second protective layer 20 and a plurality of anti-collision frames 30, forming a multi-level protection system. As the outermost layer, the first protective layer 10 can directly resist the initial impact of rockfall, disperse and absorb a large amount of impact force. The anti-collision frame 30 is composed of a plurality of anti-collision rods 31 and two mounting assemblies 32 arranged relatively along the extension direction of the pipeline 200. The two ends of the anti-collision rods 31 are rotatably connected to the mounting assemblies 32. The design is flexible and can effectively disperse the impact force and maintain overall stability when impacted. The extension direction of the anti-collision rod 31 is consistent with the pipeline 200, which enhances the continuity of protection. The second protective layer 20 is located between the anti-collision frame 30 and the pipeline 200, plays a buffering role, further reduces the impact force, protects the pipeline 200 from direct damage, and provides additional support and stability for the anti-collision frame 30. On the whole, the device provides comprehensive and effective anti-rockfall protection for the hydropower station pipeline 200, and improves the safety and durability of the facility.

[0033] like Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, in some embodiments, the mounting assembly 32 includes an arc frame 321, a first plate 322 and a connecting rod 323, one end of the connecting rod 323 is rotatably connected to the arc frame 321, and the other end of the connecting rod 323 is rotatably connected to the first plate 322, and a fixing hole 3213 is provided on the first plate 322, and the anti-collision rod 31 is inserted into the fixing hole 3213.

[0034] Specifically, the shape of the arc frame 321 is highly adapted to the outer circumference of the pipe 200, ensuring that the installation assembly 32 can fit tightly on the pipe 200, which not only enhances the stability of the installation, but also effectively avoids any damage to the pipe 200 itself that may be caused by improper installation. One end of the connecting rod 323 is rotatably connected to the arc frame 321, and the other end is also rotatably connected to the first plate 322, thereby forming a double rotation connection, which gives the installation assembly 32 great flexibility, allowing the entire device to demonstrate excellent resilience when facing the impact of falling rocks. In particular, when the anti-collision rod 31 is impacted, the rotation connection of the connecting rod 323 can effectively disperse the impact force, reduce the direct impact on the pipe 200, and thus greatly improve the protection effect.

[0035] The first plate 322 is provided with a specially designed fixing hole 3213, so that the anti-collision rod 31 can be tightly and firmly inserted therein, thereby forming a plug-in design of the anti-collision rod 31, which not only simplifies the installation process, but also improves the connection strength between the anti-collision rod 31 and the installation assembly 32, making the entire protection system more solid and reliable.

[0036] Furthermore, when the anti-collision bar 31 needs to be replaced, the operator can operate the first plate 322 to move along the extension direction of the pipeline 200, so that the distance between the two first plates 322 gradually increases until it is greater than the length of the anti-collision bar 31. In this way, the anti-collision bar 31 can be easily pulled out from the fixing hole 3213 for replacement or maintenance operations, which not only greatly simplifies the replacement process of the anti-collision bar 31, but also improves the maintainability and service life of the entire protective device. At the same time, since the entire replacement process does not require the pipeline 200 to be disassembled or damaged, the operation difficulty and cost are greatly reduced.

[0037] Furthermore, the mounting assembly 32 also includes a second plate 324, a receiving cavity 3211 is provided in the arc frame 321, a mounting hole 3212 is opened on the side wall of the receiving cavity 3211, the connecting rod 323 can be rotatably passed through the mounting hole 3212, and the two ends of the connecting rod 323 are correspondingly connected to the first plate 322 and the second plate 324.

[0038] Furthermore, the mounting assembly 32 also includes a fixing rod 3214 , both ends of which are used to connect the second plate 324 and the arc frame 321 , and the fixing rod 3214 and the connecting rod 323 work together to fix the second plate 324 to the accommodating cavity 3211 .

[0039] In some embodiments, two connecting rods 323 are provided, and the two connecting rods 323 are arranged side by side along the outer circumference of the pipe 200. The side-by-side arrangement of the two connecting rods 323 also makes the entire protective device more convenient when installing, maintaining or replacing the anti-collision bar 31. The operator can adjust the distance between the first plate 322 and the second plate 324 more easily by operating the two connecting rods 323 at the same time, thereby providing sufficient operating space for replacing the anti-collision bar 31.

[0040] In some embodiments, the anti-collision frame 30 is set to be semicircular, that is, two anti-collision frames 30 are provided in the circumferential direction of the pipeline 200, and only the pipeline 200 can be wrapped. The anti-collision frame 30 is provided with a mounting claw 33, and the mounting claw 33 is provided with a positioning hole 331. The hydropower station pipeline rockfall damage prevention device 100 also includes a stud 332 and a nut. During the installation of the anti-collision frame 30, one end of the stud 332 can pass through the positioning hole 331 of the anti-collision frame 30 on one side of the pipeline 200, and then pass through the positioning hole 331 of the anti-collision frame 30 on the other side of the pipeline 200 and be screwed with the nut to achieve the installation and fixation of the anti-collision frame 30. It should be noted that in some other embodiments, the anti-collision frame 30 can also be connected by a buckle, a claw and other structures, which will not be repeated here.

[0041] In addition, in some embodiments, the protection angle of the anti-collision frame 30 can also be set to 60°, 90°, etc., that is, 6 or 4 anti-collision frames 30 need to be set in the circumferential direction of the pipeline 200. In other words, the number of the anti-collision frames 30 can be set as needed.

[0042] like Figure 6 As shown, in some embodiments, the first protective layer 10 includes a protective layer 11, a buffer layer 12 and an appearance layer 13, and the appearance layer 13, the buffer layer 12 and the protective layer 11 are stacked in sequence along the radial direction of the pipeline 200 and in the direction toward the pipeline 200, which not only ensures that each layer of the structure can fully exert its protective function, but also further enhances the overall performance and stability of the entire protective layer through the interaction between layers.

[0043] Furthermore, the protective layer 11 is made of stainless steel, the buffer layer 12 is made of polyurethane foam, and the appearance layer 13 is made of thermoplastic polyurethane, which not only ensures the comprehensive and effective protection of the first protective layer 10, but also improves the practicality and aesthetics of the entire protective layer through the excellent performance and processing performance of the material, meets the actual needs of the protection of the hydropower station pipeline 200, and provides a strong guarantee for its long-term stable operation.

[0044] The protective layer 11 is a key layer that is in direct contact with the pipeline 200 body. The protective layer 11 is made of stainless steel, which can effectively resist various corrosive media and mechanical wear, thereby ensuring the long-term stable operation of the pipeline 200 body. In addition, stainless steel also has good weldability and plasticity, which is easy to process and install, further improving the practicality and reliability of the protective layer 11.

[0045] The buffer layer 12 is an important layer for absorbing and dispersing external impact energy, and polyurethane foam material is used to make the buffer layer 12. When external impact force acts on the buffer layer 12, the polyurethane foam can quickly deform and disperse the impact force to a larger area, thereby effectively reducing the impact on the pipeline 200. In addition, the polyurethane foam also has good sound insulation and heat preservation properties, which can provide additional protection for the pipeline 200.

[0046] The appearance layer 13 is the outermost layer of the entire protective layer. The appearance layer 13 is made of thermoplastic polyurethane material, which can not only maintain bright colors and a smooth surface for a long time, but also resist erosion in harsh outdoor environments. At the same time, thermoplastic polyurethane also has good processing performance, and the appearance layer 13 of various shapes and sizes can be easily produced through injection molding, extrusion and other processes to meet the needs of different hydropower station pipelines 200.

[0047] Furthermore, the protective layer 11, the buffer layer 12 and the appearance layer 13 are connected by rivets, which not only ensures the close fit and firm connection between the layers, but also greatly improves the overall strength and stability of the entire protective layer. Even in the face of strong external impact or harsh environmental conditions, the protective layer can maintain its integrity and functionality, providing continuous and effective protection for the pipeline 200.

[0048] like Figure 2 , Figure 3 and Figure 4 As shown, in some embodiments, the mounting assembly 32 also includes a positioning column 34, an assembly hole 3215 is provided on the arc frame 321, and a through hole is provided on the first protective layer 10, and the through hole is arranged corresponding to the assembly hole 3215, and one end of the positioning column 34 passes through the through hole and is connected to the assembly hole 3215 of the arc frame 321, which not only ensures the accurate positioning of the first protective layer 10 on the anti-collision frame 30, but also realizes a stable connection between the first protective layer 10 and the anti-collision frame 30 through the positioning column 34 and the assembly hole 3215.

[0049] In some embodiments, the second protective layer 20 is made of rubber material. The rubber material has high elasticity and can be deformed quickly when facing external impact, thereby absorbing and dispersing the impact force and protecting the pipeline 200 from damage. Secondly, the rubber material has high wear resistance and high tear resistance, and can maintain good durability and stability during long-term operation, reducing the frequency of maintenance and replacement.

[0050] In addition, an embodiment of the present invention further provides a hydropower station pipeline system, which includes a pipeline 200 and a hydropower station pipeline rockfall protection device 100 provided in any of the above embodiments, wherein the anti-collision frame 30 is sequentially arranged along the extension direction of the pipeline 200 .

[0051] It should be noted that the implementation principle and technical effects of the hydropower station pipeline system provided in the embodiment of the present application are the same as those of the aforementioned hydropower station pipeline anti-rockfall damage device 100 embodiment. For the sake of brief description, for matters not mentioned in the system embodiment, reference may be made to the corresponding contents in the aforementioned hydropower station pipeline anti-rockfall damage device 100 embodiment.

[0052] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “inside”, “outside”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, 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.

[0053] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0054] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0055] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0056] In the present invention, the terms "one embodiment", "some embodiments", etc. mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples without contradiction.

[0057] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A device for preventing pipelines from falling rocks from being damaged in a hydropower station, characterized in that: It includes a first protective layer, a second protective layer and a plurality of anti-collision frames, wherein the plurality of anti-collision frames are connected around the circumference of the pipeline and wrapped around the outside of the pipeline, the first protective layer is arranged on the outside of the anti-collision frame, and the second protective layer is arranged between the anti-collision frame and the pipeline; the anti-collision frame includes a plurality of anti-collision rods and two mounting components, the two mounting components are arranged relatively to each other along the extension direction of the pipeline, so the mounting components have an inner wall surface adapted to the outer circumferential surface of the pipeline, one end of the anti-collision rod is rotatably connected to one of the two mounting components, and the other end of the anti-collision rod is rotatably connected to the other of the two mounting components, and the extension direction of the anti-collision rod is consistent with the extension direction of the pipeline.

2. The device for preventing pipelines from falling rocks from being damaged in a hydropower station according to claim 1, characterized in that: The mounting assembly includes an arc frame, a first plate and a connecting rod, one end of the connecting rod is rotatably connected to the arc frame, and the other end of the connecting rod is rotatably connected to the first plate. A fixing hole is provided on the first plate, and the anti-collision rod is inserted into the fixing hole.

3. The device for preventing pipelines from falling rocks from being damaged in a hydropower station according to claim 2, characterized in that: The mounting assembly also includes a second plate. A receiving cavity is provided in the arc-shaped frame. A mounting hole is provided on the side wall of the receiving cavity. The connecting rod can be rotatably inserted into the mounting hole. Both ends of the connecting rod are correspondingly connected to the first plate and the second plate.

4. The device for preventing pipelines from falling rocks from being damaged in a hydropower station according to claim 2, characterized in that: There are two connecting rods, and the two connecting rods are arranged side by side along the outer circumference of the pipeline.

5. The device for preventing pipelines from falling rocks from being damaged in a hydropower station according to claim 2, characterized in that: The first protective layer includes a protective layer, a buffer layer and an appearance layer, and the appearance layer, the buffer layer and the protective layer are sequentially stacked along the radial direction of the pipeline and toward the pipeline.

6. The device for preventing pipelines from falling rocks from being damaged in a hydropower station according to claim 5, characterized in that: The protective layer is made of stainless steel, the buffer layer is made of polyurethane foam, and the appearance layer is made of thermoplastic polyurethane.

7. The device for preventing pipelines from falling rocks from being damaged in a hydropower station according to claim 5, characterized in that: The protective layer, the buffer layer and the appearance layer are connected by rivets.

8. The device for preventing pipelines from falling rocks from being damaged in a hydropower station according to claim 5, characterized in that: The installation assembly also includes a positioning column, the arc frame is provided with an assembly hole, the first protective layer is provided with a through hole, the through hole is arranged corresponding to the assembly hole, and one end of the positioning column passes through the through hole and is connected to the assembly hole of the arc frame.

9. The device for preventing pipelines from falling rocks from being damaged in a hydropower station according to claim 1, characterized in that: The second protective layer is made of rubber material.

10. A pipeline system of a hydropower station, characterized in that: The invention comprises a pipeline and a device for preventing pipelines from being damaged by falling rocks in a hydropower station as claimed in any one of claims 1 to 9, wherein the anti-collision frames are arranged in sequence along the extending direction of the pipeline.

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