Air refrigeration and dust removal equipment for high-altitude tunnel

Abstract

The invention relates to high-altitude tunnel air refrigeration dust removal equipment, and relates to the technical field of tunnel construction, the high-altitude tunnel air refrigeration dust removal equipment comprises a draught fan used for achieving air flowing entering, the draught fan is used for blowing air into a cooler through a pipeline, and after the air is cooled through the cooler, cold air is output to an output end to be used for cooling the air; a first cleaning net, a second cleaning net and a third cleaning net are arranged in the device. A dynamic filtering mode can be achieved through the first cleaning net, the second cleaning net and the third cleaning net, the three layers of cleaning nets are linked to form a composite filtering layer under the normal working condition, the middle layer can be independently started for targeted purification under the cleaning mode, and a single-layer filtering mode can be rapidly switched during maintenance; the cleaning net is used for primarily purifying the air, the impurity content in the air is reduced, and the problem that the water box needs to be replaced frequently can be solved.

Description

Technical Field

[0001] The present invention relates to the technical field of tunnel construction, and in particular to air cooling and dust removal equipment for high-altitude tunnels. Background Art

[0002] During the construction of high-altitude tunnels, the environmental characteristics of high-altitude tunnels, including low air pressure and thin air, extreme temperature differences, strong ultraviolet rays, low oxygen and dust, make the construction environment relatively harsh. Therefore, during the construction of high-altitude tunnels, it is necessary to use equipment to maintain the working environment of the staff and reduce the impact of the working environment on the work progress.

[0003] For example, in the patent document with application number: 202411522056.6, a high-altitude tunnel air conditioning and dust removal equipment and control method are disclosed, and specifically the use of the movement of the drying layer and the humidifying layer is disclosed to facilitate the adjustment of the humidity of the air after dust removal according to the construction environment to ensure the comfort of the construction environment.

[0004] In the above technical solutions, the air is dust-removed by using a water storage box, and the air is treated again after treatment to avoid the air containing too much moisture affecting the air. However, due to the construction environment, there are many impurities in the air. Directly inputting it into the water box for treatment will cause a large amount of impurities to be easily adsorbed in the water box. When the air is removed from the water box, it will carry water mist of poor quality, resulting in poor air purification effect. Summary of the Invention

[0005] The object of the present invention is to provide an air cooling and dust removal device for a high-altitude tunnel.

[0006] The technical problem solved by the present invention is to solve the problem in the prior art that only a water box is used to purify the air, resulting in poor air purification effect.

[0007] The present invention can be implemented through the following technical solution: a high-altitude tunnel air cooling and dust removal equipment, including a fan, the output end of the fan is connected to the cooler, the cooler and the main unit are connected through a water circulation, and a first cleaning net, a second cleaning net and a third cleaning net are arranged between the fan and the cooler. The positions of the first cleaning net, the second cleaning net and the third cleaning net are adjustable, and the first cleaning net, the second cleaning net and the third cleaning net are located at the input port of the fan when they are in a stacked state.

[0008] A further technical improvement of the present invention is that the first cleaning net and the third cleaning net are rotatably connected to the second cleaning net respectively, and the second cleaning net is separable from the first cleaning net and the third cleaning net respectively.

[0009] A further technical improvement of the present invention is that the second cleaning net is mounted on the output end of the rotary drive motor through a detachable mechanism, and the rotary drive motor is slidably mounted on the upper support plate.

[0010] The further technical improvement of the present invention is that the detachable mechanism includes a longitudinal slide, which is slidably mounted on the upper support plate through a power telescopic rod, the rotary drive motor is fixedly mounted on the longitudinal slide, and a matching plate is fixed to the output end of the rotary drive motor, and a matching protrusion is fixed on the side of the matching plate, and a fixed base is fixed to the second cleaning net, and a bottom groove for matching with the matching plate is provided on the fixed base, and a bottom matching groove for matching with the matching protrusion is provided on the side of the bottom groove.

[0011] A further technical improvement of the present invention is that a rotating sleeve is fixed at the edge of the second cleaning net, a rotating shaft is arranged inside the rotating sleeve through a tension spring, and a rotating base is fixed at the bottom of the first cleaning net and the third cleaning net respectively, and a matching groove is provided on the rotating base for matching with the rotating shaft.

[0012] A further technical improvement of the present invention is that an arc-shaped limiting groove is provided on the upper support plate for sliding limiting of the first cleaning net, a bottom limiting rod is fixed to the bottom of the first cleaning net, and the bottom limiting rod and the arc-shaped limiting groove are slidingly hinged.

[0013] A further technical improvement of the present invention is that the upper support plate is fixedly mounted on the cleaning frame, a transverse hydraulic cylinder is fixed on the cleaning frame, and an output end of the transverse hydraulic cylinder is provided with a push-pull mechanism for pushing and pulling the second cleaning net.

[0014] A further technical improvement of the present invention is that the push-pull mechanism includes a fixed base plate, which is fixedly mounted on the output end of the transverse hydraulic cylinder. A clamping plate is rotatably provided on the fixed base plate, and the rotation angle of the clamping plate is adjustable.

[0015] A further technical improvement of the present invention is that a pushing cylinder is fixed on the upper support plate, a pushing plate is fixed to the output end of the pushing cylinder, a telescopic rod is fixed to the side of the pushing plate, and a telescopic flat plate is fixed to the end of the telescopic rod.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The present application can realize dynamic filtering mode through the first cleaning net, the second cleaning net and the third cleaning net. Under normal working conditions, the three layers of cleaning nets are linked to form a composite filter layer. In the cleaning mode, the middle layer can be enabled separately for targeted purification. The single-layer filtration mode can also be quickly switched during maintenance. The present application realizes intelligent adjustment of the position between the cleaning nets through a rotating drive motor, and the filter cleaning can be achieved without stopping the machine. Therefore, the present application uses the cleaning net to perform preliminary purification of the air and reduce the impurity content in the air, so it can solve the problem of frequent replacement of the water box.

[0018] 2. This application uses a serpentine flat copper tube structure, that is, a combination of large and small radii at the top and bottom, to increase the heat exchange efficiency by 20%, while reducing the wind resistance by 15%, solving the efficiency bottleneck of the traditional spiral arrangement of round tubes. The use of double-layer reducer tubes can significantly increase the heat exchange area density per unit volume, thereby optimizing the heat dissipation performance in a limited space.

[0019] 3. This application achieves a dual improvement in heat exchange efficiency and air purification quality through innovative structural design and intelligent control system, significantly reducing operation and maintenance costs while ensuring equipment performance. It is particularly suitable for the special working conditions of high-altitude tunnels. Its modular design and intelligent control strategy provide a replicable solution for similar projects. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] To facilitate understanding by those skilled in the art, the present invention is further described below with reference to the accompanying drawings.

[0021] Figure 1 Schematic diagram of the positions of the first cleaning net, the second cleaning net and the third cleaning net of the present invention;

[0022] Figure 2 It is a schematic diagram of the position of the telescopic flat plate of the present invention;

[0023] Figure 3 This is a schematic diagram of the positions of the pipeline and the cleaning net of the present invention;

[0024] Figure 4 It is a schematic structural diagram of the push-pull mechanism of the present invention;

[0025] Figure 5 This is a schematic diagram of the detachable mechanism structure of the present invention;

[0026] Figure 6 This is a schematic diagram of the cooler and fan positions of the present invention;

[0027] Figure 7 It is a schematic diagram of the flat copper tube structure of the present invention.

[0028] In the figure: 1. Cooler; 2. Main unit; 3. Fan; 4. Cleaning frame; 5. Pipe; 6. Removable mechanism; 61. Longitudinal slide; 62. Matching plate; 63. Bottom groove; 64. Fixed base; 65. Bottom matching groove; 66. Matching protrusion; 7. First cleaning surface; 8. Push-pull mechanism; 81. Fixed bottom plate; 82. Clamping cylinder; 83. Articulated base; 84. Pushing base; 85. Pushing plate; 86. Clamping plate 87. Fixed rotating shaft; 88. Clamp slide; 9. Second cleaning surface; 10. First cleaning net; 11. Second cleaning net; 12. Rotary drive motor; 13. Upper support plate; 14. Third cleaning net; 15. Lower support plate; 16. Arc-shaped limit groove; 17. Bottom limit rod; 18. Telescopic flat plate; 19. Telescopic rod; 20. Push plate; 21. Push cylinder; 22. Rotating sleeve; 23. Rotating shaft; 24. Rotating base. DETAILED DESCRIPTION

[0029] In order to further illustrate the technical means and effects adopted by the present invention to achieve the predetermined purpose of the invention, the specific implementation methods, structures, features and effects of the present invention are described in detail below in conjunction with the accompanying drawings and preferred embodiments.

[0030] See also Figure 1-7 As shown, a high-altitude tunnel air cooling and dust removal equipment includes a fan 3 for realizing air flow inlet, and the fan 3 is used to blow air into the interior of the cooler 1 through the pipe 5, and then output the cold air to the output end after being cooled by the cooler 1, so as to realize cooling of the air. In this process, the main unit 2 is used to realize the circulation flow of external circulating water and internal circulating water, and the main unit 2 is used to input the cooling water into the interior of the cooler 1, and perform heat exchange with the air obtained by the fan 3, thereby realizing cooling treatment of the air.

[0031] Furthermore, in the present application, a flat copper tube for achieving air circulation is provided inside the cooler 1, and the flat copper tube is connected to the pipe 5. The flat copper tube adopts a serpentine design, wherein there are two types of flat copper tube designs, one is a large radius at the top and a small radius at the bottom, and the other is a small radius at the top and a large radius at the bottom. The two types of flat copper tubes of large and small diameters are stacked together and arranged into a group of tubes, which effectively increases the arrangement density of the copper tubes in a fixed space, reduces the ventilation resistance, and avoids the problems of overlapping and uneven arrangement at the bend radius. Moreover, after testing, this design method reduces the wind resistance by 15% and increases the heat exchange efficiency by 20% compared with the traditional spiral arrangement of round tubes.

[0032] As a further embodiment of the present application, a mechanical preliminary purification device is arranged between the cooler 1 and the fan 3, wherein the mechanical preliminary purification device includes a cleaning frame 4, an upper support plate 13 and a lower support plate 15 are fixed inside the cleaning frame 4, wherein a purification mechanism for preliminary purification of the air is fixed between the upper support plate 13 and the lower support plate 15, and the purification mechanism includes a first cleaning net 10, a second cleaning net 11 and a third cleaning net 14, wherein the positions of the first cleaning net 10, the second cleaning net 11 and the third cleaning net 14 are adjustable. When the positions of the first cleaning net 10, the second cleaning net 11 and the third cleaning net 14 are superimposed and located at the output end of the pipeline 5, the air is filtered through the first cleaning net 10, the second cleaning net 11 and the third cleaning net 14, and after filtration, the gas directly enters the flat copper tube for circulation to cool the air.

[0033] In the present application, in order to adjust the positions of the first cleaning net 10, the second cleaning net 11 and the third cleaning net 14, the second cleaning net 11 is located between the first cleaning net 10 and the third cleaning net 14, and the second cleaning net 11 is installed at the output end of the rotary drive motor 12 through the detachable mechanism 6. At the same time, the first cleaning net 10 and the third cleaning net 14 are respectively rotatably connected to the edge position of the second cleaning net 11, and the first cleaning net 10 and the third cleaning net 14 are respectively limited and slid by the upper support plate 13 and the lower support plate 15. , the second cleaning net 11 is driven to rotate by the rotary drive motor 12. During the rotation process, the edge positions of the first cleaning net 10 and the third cleaning net 14 are controlled, so that the positions of the first cleaning net 10 and the third cleaning net 14 can be adjusted, so that the mesh positions of the first cleaning net 10 and the third cleaning net 14 coincide with the second cleaning net 11, so that the air from the pipe 5 can be purified and the impurities in the air can be fully filtered out on the first cleaning net 10, the second cleaning net 11 and the third cleaning net 14, through multi-layer filtration, to ensure The purification quality of the air is improved, and when the first cleaning net 10 and the third cleaning net 14 are located on both sides of the second cleaning net 11, the second cleaning net 11 is used to purify the air, and the first cleaning net 10 and the third cleaning net 14 are cleaned to ensure the cleanliness of the first cleaning net 10 and the third cleaning net 14; when the second cleaning net 11 needs to be cleaned, at this time, since the first cleaning net 10 and the third cleaning net 14 are detachably connected to the second cleaning net 11 respectively, it is possible to make the first cleaning net 10, the second cleaning net 11 and the third cleaning net 14 be detachably connected to the second cleaning net 11 respectively. When the output positions of the pipe 5 are overlapped, the second cleaning net 11 is separated from the first cleaning net 10 and the third cleaning net 14 respectively, and the push-pull mechanism 8 arranged on the side of the cleaning frame 4 is used to push and pull the second cleaning net 11, and move the second cleaning net 11 to the edge position of the cleaning frame 4, so that the second cleaning net 11 is away from the input end of the pipe 5, so that the air entering the pipe 5 is cleaned through the first cleaning net 10 and the third cleaning net 14, so as to ensure intermittent cleaning of the first cleaning net 10, the second cleaning net 11 and the third cleaning net 14, thereby ensuring the quality of air purification.

[0034] Specifically, an arc-shaped limiting groove 16 for slidingly limiting the first cleaning net 10 and the third cleaning net 14 is provided on the upper support plate 13 and the lower support plate 15. A bottom limiting rod 17 is fixed to the bottom of the first cleaning net 10 and the third cleaning net 14, and the bottom limiting rod 17 and the arc-shaped limiting groove 16 are slidingly hinged, that is, the sliding hinge of the bottom limiting rod 17 and the arc-shaped limiting groove 16 can maintain the angle of the first cleaning net 10 and the third cleaning net 14, and prevent the first cleaning net 10 and the third cleaning net 14 from rotating. When the second cleaning net 11 rotates, the first cleaning net 10 and the third cleaning net 14 move laterally under the action of the external limiting function, and move back and forth during the movement, and the arc-shaped limiting groove 16 is used to realize the limiting function of the first cleaning net 10 and the third cleaning net 14. Therefore, the external limit means that a limit rod that can slide laterally is provided on the upper support plate 13 and the lower support plate 15, and the limit rod is slidably connected to the first cleaning net 10 and the third cleaning net 14 respectively, and the sliding direction of the limit rod is ninety degrees to the sliding direction of the first cleaning net 10 and the third cleaning net 14.

[0035] In order to realize the rotational connection between the first cleaning net 10 and the third cleaning net 14 and the second cleaning net 11 respectively, taking the first cleaning net 10 as an example, a rotating sleeve 22 is fixed to the bottom of the second cleaning net 11, and a rotating shaft 23 is arranged inside the rotating sleeve 22 through a tension spring, and a rotating base 24 is fixed to the bottom of the first cleaning net 10, wherein the rotating base 24 is provided with a mating groove for mating with the rotating shaft 23.

[0036] Furthermore, a pushing cylinder 21 is respectively provided on the upper support plate 13 and the lower support plate 15, wherein a pushing plate 20 is fixed to the output end of the pushing cylinder 21, and a telescopic rod 19 is fixed to the bottom of the pushing plate 20, and a telescopic flat plate 18 for cooperating with the rotating shaft 23 is fixed to the output end of the telescopic rod 19. When in use, if it is necessary to separate the second cleaning net 11 from the first cleaning net 10 and the third cleaning net 14 respectively, the pushing cylinder 21 is started to control the pushing plate 20 to move laterally until the telescopic flat plate 18 moves to the position of the rotating shaft 23, and the telescopic rod 19 is started to control the telescopic flat plate 18 to act on the rotating shaft 23, squeezing the tension spring so that the rotating shaft 23 and the rotating base 24 are separated, and then the push-pull mechanism 8 is used to pull the second cleaning net 11 apart, thereby realizing the separation of the second cleaning net 11 from the first cleaning net 10 and the third cleaning net 14.

[0037] The push-pull mechanism 8 includes a fixed base plate 81, wherein the fixed base plate 81 is fixedly mounted on the output end of the horizontal hydraulic cylinder. The horizontal movement of the fixed base plate 81 is used to control the horizontal movement of the clamping plate 86, so that the clamping plate 86 is clamped on the second cleaning net 11 and the second cleaning net 11 is pulled horizontally. In this process, a clamping plate slot 88 is provided on the fixed base plate 81. The clamping plate slot 88 is arc-shaped. A fixed shaft 87 is rotatably provided on the fixed base plate 81. A clamping plate 86 is fixed on the rotating shaft 87, and a hinged base 83 is rotatably provided at the end of the clamping plate 86. The hinged base 83 and the clamping plate slide 88 are slidingly connected. At the same time, a pushing base 84 is fixed on the fixed bottom plate 81, wherein a clamping cylinder 82 is symmetrically fixed on the pushing base 84, wherein a pushing plate 85 is fixed at the output end of the clamping cylinder 82, and the pushing plate 85 acts on the clamping plate 86. At the same time, springs are provided inside the hinged base 83 and the clamping plate slide 88. When in use, the action of the spring is utilized to ensure that the articulated bases 83 can maintain a stable force in opposite directions, and then under the action of the clamping cylinder 82, the pushing plate 85 is moved until the pushing plate 85 acts on the clamping plate 86, so that the end of the clamping plate 86 away from the articulated base 83 is in a clamping state, thereby clamping the clamping plate 86 on the second cleaning net 11, and then under the action of the transverse hydraulic cylinder, the second cleaning net 11 is pulled laterally.

[0038] In the present application, the detachable mechanism 6 includes a longitudinal slide 61, wherein the longitudinal slide 61 is slidably mounted on the upper support plate 13 through a power telescopic rod, the rotary drive motor 12 is fixedly mounted on the longitudinal slide 61, a matching plate 62 is fixed at the output end of the rotary drive motor 12, a matching protrusion 66 is fixed on the side of the matching plate 62, and a fixed base 64 is fixed on the second cleaning net 11, wherein a bottom groove 63 is provided on the fixed base 64, and a bottom matching groove 65 is provided on the side of the bottom groove 63, the bottom matching groove 65 and the matching protrusion 66 are matched, and the matching plate 62 and the bottom groove 63 are matched. When in use, the power telescopic rod is used to control the longitudinal slide 61 to move longitudinally, and the matching plate 62 is used to enter the bottom groove 63. At this time, the matching protrusion 66 enters the bottom matching groove 65, thereby realizing the position matching of the rotary drive motor 12 and the second cleaning net 11.

[0039] The first cleaning surface 7 and the second cleaning surface 9 are symmetrically fixed on the cleaning frame 4, that is, when the first cleaning net 10, the second cleaning net 11 and the third cleaning net 14 are moved to a position deviating from the pipe 5, the first cleaning surface 7 and the second cleaning surface 9 can respectively clean the mesh surface of the cleaning net, and fully clean the impurities from the mesh surface of the cleaning net. At the same time, the dust is removed by a vacuum cleaner to maintain the cleanliness of the inside of the cleaning frame 4.

[0040] That is, the first cleaning surface 7 and the second cleaning surface 9 are longitudinal screw rod assemblies that drive the cleaning brushes to move longitudinally, thereby performing a cleaning function on the first cleaning net 10, the second cleaning net 11 and the third cleaning net 14.

[0041] When the present invention is in use, the fan 3 is used to blow air into the interior of the cooler 1 through the pipe 5, and then after being cooled by the cooler 1, the cold air is output to the output end to achieve cooling of the air. In this process, the main unit 2 is used to realize the circulation of external circulating water and internal circulating water, and the main unit 2 is used to input the cooling water into the interior of the cooler 1, and heat exchange is performed with the air obtained by the fan 3, thereby achieving cooling of the air;

[0042] In this process, the flat copper tube is connected to the pipe 5. The flat copper tube adopts a serpentine design. There are two types of flat copper tube designs: one with a large radius at the top and a small radius at the bottom, and the other with a small radius at the top and a large radius at the bottom. These two types of flat copper tubes with different diameters are stacked together to form a group of tubes, which effectively improves the arrangement density of the copper tubes in a fixed space, reduces ventilation resistance, and avoids the problems of overlapping and irregular arrangement at the bend radius. Moreover, according to tests, this design method reduces wind resistance by 15% and improves heat exchange efficiency by 20% compared with the traditional spiral arrangement of round tubes.

[0043] At the same time, a mechanical preliminary purification device is provided between the cooler 1 and the fan 3. The use method of the mechanical preliminary purification device is to place the output end of the pipe 5 at the middle position of the cleaning frame 4, and the impurities in the air are fully filtered out on the first cleaning net 10, the second cleaning net 11 and the third cleaning net 14. Through multi-layer filtration, the purification quality of the air is guaranteed, and the obtained air enters the interior of the flat copper tube. When the first cleaning net 10 and the third cleaning net 14 are located on both sides of the second cleaning net 11, the second cleaning net 11 is used to purify the air, and the first cleaning net 10 and the third cleaning net 14 are cleaned to ensure the cleanliness of the first cleaning net 10 and the third cleaning net 14; when the second cleaning net 11 needs to be cleaned, at this time, due to the first cleaning net 10, the air is not cleaned. 10. The third cleaning net 14 is detachably connected to the second cleaning net 11, respectively. Therefore, when the positions of the first cleaning net 10, the second cleaning net 11 and the third cleaning net 14 are respectively overlapped with the output position of the pipeline 5, the second cleaning net 11 is separated from the first cleaning net 10 and the third cleaning net 14, respectively, and the push-pull mechanism 8 arranged on the side of the cleaning frame 4 is used to push and pull the second cleaning net 11, and move the second cleaning net 11 to the edge position of the cleaning frame 4, so that the second cleaning net 11 is away from the input end of the pipeline 5, so that the air entering the pipeline 5 is cleaned through the first cleaning net 10 and the third cleaning net 14, so as to ensure intermittent cleaning of the first cleaning net 10, the second cleaning net 11 and the third cleaning net 14, thereby ensuring the quality of air purification.

[0044] The above description is merely a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as above in terms of a preferred embodiment, it is not intended to limit the present invention. Any person skilled in the art can, without departing from the scope of the technical solution of the present invention, make some changes or modifications to equivalent embodiments using the technical contents disclosed above. However, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are within the scope of the technical solution of the present invention.

Claims

1. A high-altitude tunnel air cooling and dust removal device, comprising a fan (3), wherein the output end of the fan (3) is connected to a cooler (1), and the cooler (1) and a host (2) are connected via a water cycle, characterized in that: A first cleaning net (10), a second cleaning net (11) and a third cleaning net (14) are arranged between the fan (3) and the cooler (1); the positions of the first cleaning net (10), the second cleaning net (11) and the third cleaning net (14) are adjustable, and the first cleaning net (10), the second cleaning net (11) and the third cleaning net (14) are located at the input port of the fan (3) when they are in a stacked state.

2. The high-altitude tunnel air cooling and dust removal equipment according to claim 1 is characterized in that: The first cleaning net (10) and the third cleaning net (14) are rotatably connected to the second cleaning net (11), and the second cleaning net (11) is separable from the first cleaning net (10) and the third cleaning net (14).

3. The high-altitude tunnel air cooling and dust removal equipment according to claim 2 is characterized in that: The second cleaning net (11) is mounted on the output end of the rotary drive motor (12) via a detachable mechanism (6), and the rotary drive motor (12) is slidably mounted on the upper support plate (13).

4. The high-altitude tunnel air cooling and dust removal equipment according to claim 3 is characterized in that: The detachable mechanism (6) comprises a longitudinal slide (61), the longitudinal slide (61) being slidably mounted on the upper support plate (13) via a power telescopic rod, the rotary drive motor (12) being fixedly mounted on the longitudinal slide (61), and a matching plate (62) being fixed to the output end of the rotary drive motor (12), a matching protrusion (66) being fixed to the side of the matching plate (62), a fixed base (64) being fixed to the second cleaning net (11), a bottom groove (63) being provided on the fixed base (64) for matching with the matching plate (62), and a bottom matching groove (65) being provided on the side of the bottom groove (63) for matching with the matching protrusion (66).

5. The high altitude tunnel air cooling and dust removal equipment according to claim 1, characterized in that: A rotating sleeve (22) is fixed at the edge of the second cleaning net (11), and a rotating shaft (23) is provided inside the rotating sleeve (22) via a tension spring. Rotating bases (24) are respectively fixed at the bottoms of the first cleaning net (10) and the third cleaning net (14), and a matching groove for matching with the rotating shaft (23) is provided on the rotating base (24).

6. The high altitude tunnel air cooling and dust removal equipment according to claim 3, characterized in that: The upper support plate (13) is provided with an arc-shaped limiting groove (16) for achieving sliding limiting of the first cleaning net (10); a bottom limiting rod (17) is fixed to the bottom of the first cleaning net (10); the bottom limiting rod (17) and the arc-shaped limiting groove (16) are slidably hinged.

7. The high-altitude tunnel air cooling and dust removal equipment according to claim 3 is characterized in that: The upper support plate (13) is fixedly mounted on the cleaning frame (4), a transverse hydraulic cylinder is fixed on the cleaning frame (4), and a push-pull mechanism (8) for pushing and pulling the second cleaning net (11) is provided at the output end of the transverse hydraulic cylinder.

8. The high-altitude tunnel air cooling and dust removal equipment according to claim 7, characterized in that: The push-pull mechanism (8) comprises a fixed base plate (81), the fixed base plate (81) is fixedly mounted on the output end of the transverse hydraulic cylinder, a clamping plate (86) is rotatably provided on the fixed base plate (81), and the rotation angle of the clamping plate (86) is adjustable.

9. The high-altitude tunnel air cooling and dust removal equipment according to claim 3, characterized in that: A pushing cylinder (21) is fixed on the upper support plate (13), a pushing plate (20) is fixed to the output end of the pushing cylinder (21), a telescopic rod (19) is fixed to the side of the pushing plate (20), and a telescopic flat plate (18) is fixed to the end of the telescopic rod (19).

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