Tunnel main and standby fan quick conversion ventilation device

Abstract

This invention relates to the field of civil engineering, and more particularly to a rapid switching ventilation device for main and backup tunnel fans. The technical solution includes a tee pipe and a branch pipe fixed to one end of the tee pipe. A sealing mechanism is provided on one side of the outer wall of both the tee pipe and the branch pipe. The sealing mechanism includes a sealing frame fixed to one side of the outer wall of the tee pipe and the branch pipe. A hydraulic pushing mechanism is provided on one side of the top of the sealing frame, and multiple rotating rods penetrate the inner wall of the sealing frame. This invention's rapid switching ventilation device for main and backup tunnel fans significantly shortens the switching time, improves the reliability and stability of the ventilation system, and prevents damage to the fans caused by backdraft and the unnecessary waste of airflow. By effectively utilizing natural wind at the tunnel entrance and optimizing fan operating parameters, it reduces fan energy consumption and carbon emissions, achieving green and environmentally friendly tunnel ventilation.

Description

Technical Field

[0001] This invention relates to the field of civil engineering, and more particularly to a rapid switching ventilation device for main and backup ventilation fans in tunnels. Background Technology

[0002] Tunnel ventilation, as a crucial aspect of tunnel construction safety and quality assurance, is essential not only for providing fresh air to construction workers but also for the comprehensive optimization and control of the tunnel's internal environment. Insufficient ventilation is a common problem in the construction of long tunnels and gas tunnels. This can typically be addressed by increasing the number of fans, increasing their power, and increasing the number of ventilation ducts to improve the working environment. However, existing single-fan ventilation systems cannot meet the design requirement of 24-hour uninterrupted ventilation, necessitating the addition of backup fans. However, backup fans cannot be quickly activated when the main fan fails. Furthermore, conventional three-stage ventilation bags are prone to damage and have a short service life during the switching between main and backup fans. Therefore, this application proposes a rapid switching ventilation device for main and backup tunnel fans. Summary of the Invention

[0003] The purpose of this invention is to address the problems in the prior art where the backup fan cannot be quickly activated when the main fan fails, and where conventional three-way ventilation bags are easily damaged and have a short service life when switching between the main and backup fans. This invention proposes a rapid switching ventilation device for tunnel main and backup fans.

[0004] The technical solution of the present invention: a tunnel main and backup ventilation device for rapid switching, comprising a three-way pipe body and a branch pipe fixed to one end of the three-way pipe body, wherein a sealing mechanism is provided on one side of the outer wall of both the three-way pipe body and the branch pipe.

[0005] The sealing mechanism includes a sealing frame fixed to one side of the outer wall of the tee pipe and the branch pipe. A hydraulic pushing mechanism is provided on one side of the top of the sealing frame. Multiple rotating rods pass through the inner wall of the sealing frame. Sealing plates are fixedly connected to the outer walls of the multiple rotating rods. Multiple horizontal plates are fixedly connected to the inner wall of the sealing frame. The multiple horizontal plates are located on one side of the sealing plate.

[0006] A secondary sealing mechanism is provided on the other side of the top of the sealing frame. The secondary sealing mechanism includes a second hydraulic oil tank fixed to the top of the sealing frame, and a pushing sealing mechanism is provided on one side of the second hydraulic oil tank.

[0007] Optionally, the hydraulic actuation mechanism includes a hydraulic cylinder fixed to the top of the sealing frame, a hydraulic rod slidably connected to the output end of the hydraulic cylinder, a hydraulic oil tank on one side of the hydraulic cylinder, a push frame fixedly connected to the bottom end of the hydraulic rod, a rack fixedly connected to one side of the push frame, and the push frame slidably connected to a limiting groove opened on one side of the outer wall of the sealing frame.

[0008] Optionally, one end of the plurality of rotating rods is fixedly connected to a drive gear, a rack meshes with one side of the outer wall of the plurality of drive gears, a transmission plate is fixedly connected to one end of the outer wall of the plurality of rotating rods away from the drive gear, a limit rod is fixedly connected to one side of the transmission plate away from the rotating rod, and the plurality of limit rods are slidably connected to a limit groove two opened on one side of the outer wall of the sealing frame.

[0009] Optionally, the bottom end of the tee pipe is fixedly connected to multiple supporting angle steels, and the bottom end of each of the multiple supporting angle steels is fixedly connected to an I-beam. Two connecting steel frames are fixedly connected between two I-beams.

[0010] Optionally, one end of the tee pipe is fixedly connected to a valve support frame, and the bottom end of the valve support frame is fixedly connected to a supporting I-beam.

[0011] Optionally, a connecting mechanism is provided on one side of the sealing frame. The connecting mechanism includes a connecting pipe fixed to one side of the sealing frame. A rubber gasket is fixedly connected to one side of the outer wall of the connecting pipe, and a flange ring is fixedly connected to the end of the outer wall of the connecting pipe away from the rubber gasket. Multiple connecting bolts pass through the outer wall of the flange ring. An air bag connecting ring is fixedly connected to the end of the outer wall of the connecting pipe away from the flange ring, and multiple wire connecting rings are fixedly connected to the outer wall of the air bag connecting ring.

[0012] Optionally, the sealing mechanism includes a hydraulic cylinder two fixed to one side of the hydraulic oil tank two. The output end of the hydraulic cylinder two is fixedly connected to a push rod via a sliding rod. Multiple connecting buckles are fixedly connected to the outer wall of the push rod, and a sliding sealing layer is fixedly connected to one side of each of the multiple connecting buckles.

[0013] Optionally, the top ends of the plurality of sliding sealing layers are slidably connected to the inner wall of the sliding plate, and the plurality of sliding plates are fixedly connected to the inner wall of the valve support frame.

[0014] Compared with the prior art, this application includes at least one of the following beneficial technical effects:

[0015] The present invention relates to a tunnel main and backup ventilation device that enables rapid switching between the main and backup fans through the connection of a three-way pipe and a branch pipe. The device guides the airflow directly through the three-way pipe, significantly shortening the switching time and improving the reliability and stability of the ventilation system.

[0016] Furthermore, through sealing and secondary sealing mechanisms, the inside of the pipe is sealed tightly, preventing backflow that could damage the fan or waste wind power. This makes it more energy-efficient and environmentally friendly. By effectively utilizing the natural wind at the tunnel entrance and optimizing the fan's operating parameters, the energy consumption and carbon emissions of the fan are reduced, achieving a green and environmentally friendly tunnel ventilation function. Attached Figure Description

[0017] Figure 1 A three-dimensional structural schematic diagram of a tunnel main and backup ventilation device according to the present invention is provided.

[0018] Figure 2 A multi-angle three-dimensional structural schematic diagram of a tunnel main and backup ventilation device for rapid switching between ventilation fans according to the present invention is provided.

[0019] Figure 3 This is a schematic diagram of the connecting mechanism;

[0020] Figure 4 This is a schematic diagram of the sealing mechanism;

[0021] Figure 5 This is a schematic diagram of the internal structure of the sealing mechanism;

[0022] Figure 6 This is a schematic diagram of the secondary sealing mechanism.

[0023] Attached reference numerals: 1. Tee body; 11. Branch pipe; 12. Supporting angle steel; 13. I-beam; 14. Connecting steel frame; 15. Supporting I-beam; 16. Supporting valve frame; 2. Sealing mechanism; 21. Sealing frame; 22. Horizontal plate; 23. Hydraulic cylinder one; 24. Hydraulic oil tank one; 25. Hydraulic rod; 26. Push frame; 27. Rack; 28. Limiting groove one; 29. ​​Drive gear; 210. Rotating rod; 21 1. Sealing plate; 2. Transmission plate; 2. Limiting rod; 2. Limiting groove II; 3. Secondary sealing mechanism; 3. Hydraulic cylinder II; 3. Hydraulic oil tank II; 33. Push rod; 34. Connecting buckle; 35. Sliding sealing layer; 36. Sliding plate; 4. Connecting mechanism; 41. Connecting pipe; 42. Rubber gasket; 43. Flange ring; 44. Connecting bolt; 45. Air bag connecting ring; 46. Wire connecting ring. Detailed Implementation

[0024] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0025] The components of the embodiments of the invention described and shown in the accompanying drawings can typically be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of the invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention.

[0026] Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0027] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0028] It should be noted that the terms "comprising," "including," or any other variations thereof are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0029] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0030] Example 1

[0031] like Figure 1 , Figure 3 , Figure 4 and Figure 5 As shown, the present invention proposes a tunnel main and backup ventilation device for rapid switching, including a three-way pipe body 1 and a branch pipe 11 fixed to one end of the three-way pipe body 1. A sealing mechanism 2 is provided on one side of the outer wall of both the three-way pipe body 1 and the branch pipe 11. The sealing mechanism 2 includes a sealing frame 21 fixed to one side of the outer wall of the three-way pipe body 1 and the branch pipe 11. A hydraulic pushing mechanism is provided on one side of the top of the sealing frame 21. Multiple rotating rods 210 pass through the inner wall of the sealing frame 21. A sealing plate 211 is fixedly connected to the outer wall of each of the multiple rotating rods 210. Multiple horizontal plates 22 are fixedly connected to the inner wall of the sealing frame 21. The multiple horizontal plates 22 are all located on one side of the sealing plate 211.

[0032] With the above configuration, the sealing frame 21 supports the horizontal plate 22 inside the device. The hydraulic cylinder 23 drives the hydraulic rod 25 to slide up and down, which in turn drives the push frame 26 and rack 27 to slide up and down, thereby driving the multiple drive gears 29 meshing with the rack 27 to rotate. This, in turn, drives the rotating rod 210 and the sealing plate 211 to rotate, so that the sealing plate 211 can be sealed with the horizontal plate 22 to prevent backflow.

[0033] like Figure 1 and Figure 6 As shown, a secondary sealing mechanism 3 is provided on the other side of the top of the sealing frame 21. The secondary sealing mechanism 3 includes a hydraulic oil tank 32 fixed to the top of the sealing frame 21. A pushing sealing mechanism is provided on one side of the hydraulic oil tank 32.

[0034] With the above configuration, by setting up hydraulic cylinder 31, the device can drive push rod 33 to slide up and down. Push rod 33 drives connecting buckle 34 and sliding sealing layer 35 to slide up and down within sliding plate 36, thereby achieving a secondary sealing effect on the inside of the three-way pipe 1, making the inside of the pipe tightly sealed, preventing backflow that could damage the fan or waste wind power, and making it more energy-efficient and environmentally friendly.

[0035] In this embodiment, the connection between the three-way pipe 1 and the branch pipe 11 allows for rapid switching between the main and standby fans, directing airflow directly through the three-way pipe 1. This significantly shortens the switching time and improves the reliability and stability of the ventilation system. The sealing frame 21 supports the internal horizontal plate 22. The hydraulic cylinder 23 drives the hydraulic rod 25 to slide up and down, which in turn drives the push frame 26 and rack 27 to slide up and down, thereby rotating the multiple drive gears 29 meshing with the rack 27. This, in turn, rotates the rotating rod. Rotation of 210 and sealing plate 211 allows sealing plate 211 to be sealed with horizontal plate 22, preventing backflow. By setting hydraulic cylinder 31, the device can drive push rod 33 to slide up and down. Push rod 33 drives connecting buckle 34 and sliding sealing layer 35 to slide up and down within sliding plate 36, thereby achieving a secondary sealing effect on the inside of the three-way pipe 1, making the inside of the pipe tightly sealed, preventing backflow that could damage the fan or waste wind power, and making it more energy-efficient and environmentally friendly.

[0036] Example 2

[0037] like Figure 3 and Figure 4As shown, based on Embodiment 1, the hydraulic push mechanism includes a hydraulic cylinder 23 fixed to the top of the sealing frame 21, a hydraulic rod 25 slidably connected to the output end of the hydraulic cylinder 23, a hydraulic oil tank 24 provided on one side of the hydraulic cylinder 23, a push frame 26 fixedly connected to the bottom end of the hydraulic rod 25, a rack 27 fixedly connected to one side of the push frame 26, and the push frame 26 slidably connected to a limiting groove 28 opened on one side of the outer wall of the sealing frame 21;

[0038] With the above configuration, the push frame 26 and rack 27 slide up and down, thereby driving the multiple drive gears 29 that mesh with the rack 27 to rotate.

[0039] like Figure 4 and Figure 5 As shown, one end of a plurality of rotating rods 210 is fixedly connected to a drive gear 29, a rack 27 meshes with one side of the outer wall of the plurality of drive gears 29, a transmission plate 212 is fixedly connected to one end of the outer wall of the plurality of rotating rods 210 away from the drive gear 29, a limit rod 213 is fixedly connected to one side of the transmission plate 212 away from the rotating rod 210, and the limit rods 213 are all slidably connected in the limit groove 214 opened on one side of the outer wall of the sealing frame 21;

[0040] With the above configuration, by pushing the frame 26 and the rack 27 to slide up and down, the multiple drive gears 29 meshing with the rack 27 are driven to rotate, thereby driving the rotating rod 210 and the sealing plate 211 to rotate, so that the sealing plate 211 can be closed with the horizontal plate 22.

[0041] like Figure 1 and Figure 2 As shown, the bottom end of the tee pipe 1 is fixedly connected to multiple supporting angle steels 12, and the bottom end of each of the multiple supporting angle steels 12 is fixedly connected to an I-beam 13. Two connecting steel frames 14 are fixedly connected between two I-beams 13.

[0042] With the above-mentioned setup, the entire device is supported by the supporting angle steel 12, and the device is more stably supported by the I-beam 13 and the connecting steel frame 14.

[0043] like Figure 1 and Figure 2 As shown, a valve support bracket 16 is fixedly connected to one end of the three-way pipe body 1, and a supporting I-beam 15 is fixedly connected to the bottom end of the valve support bracket 16.

[0044] With the above configuration, the device can fix the sealing mechanism 2 by setting up the valve support frame 16 and the supporting I-beam 15.

[0045] like Figure 1 and Figure 3As shown, a connecting mechanism 4 is provided on one side of the sealing frame 21. The connecting mechanism 4 includes a connecting pipe 41 fixed to one side of the sealing frame 21. A rubber gasket 42 is fixedly connected to one side of the outer wall of the connecting pipe 41, and a flange ring 43 is fixedly connected to the end of the outer wall of the connecting pipe 41 away from the rubber gasket 42. Multiple connecting bolts 44 pass through the outer wall of the flange ring 43. A wind bag connecting ring 45 is fixedly connected to the end of the outer wall of the connecting pipe 41 away from the flange ring 43. Multiple wire connecting rings 46 are fixedly connected to the outer wall of the wind bag connecting ring 45.

[0046] With the above-mentioned settings, the rubber gasket 42 and flange ring 43 make the connection between the device and the outlet of the external main fan more airtight, preventing air leakage. The air bag connecting ring 45 and wire connecting ring 46 make the connection between the device and the air bag tighter.

[0047] like Figure 1 and Figure 6 As shown, the pushing sealing mechanism includes a hydraulic cylinder 31 fixed to one side of the hydraulic oil tank 32. The output end of the hydraulic cylinder 31 is fixedly connected to a pushing rod 33 via a sliding rod. Multiple connecting buckles 34 are fixedly connected to the outer wall of the pushing rod 33. A sliding sealing layer 35 is fixedly connected to one side of each of the multiple connecting buckles 34.

[0048] With the above configuration, by setting up hydraulic cylinder 31, the device can drive push rod 33 to slide up and down through hydraulic cylinder 31. Push rod 33 drives connecting buckle 34 and sliding sealing layer 35 to slide up and down within sliding plate 36, thereby achieving the effect of secondary sealing of the inside of T-pipe 1.

[0049] like Figure 1 and Figure 6 As shown, the tops of multiple sliding sealing layers 35 are slidably connected to the inner wall of the sliding plate 36, and the multiple sliding plates 36 are fixedly connected to the inner wall of the valve support frame 16, so that the sliding sealing layers 35 can seal the inside of the pipe body.

[0050] The above specific embodiments are merely several optional embodiments of the present invention. Based on the technical solutions of the present invention and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. A tunnel main and backup ventilation fan rapid switching device, comprising a three-way pipe body (1) and a branch pipe (11) fixed to one end of the three-way pipe body (1), characterized in that: A sealing mechanism (2) is provided on one side of the outer wall of both the tee pipe (1) and the branch pipe (11); The sealing mechanism (2) includes a sealing frame (21) fixed to one side of the outer wall of the three-way pipe (1) and the branch pipe (11). A hydraulic pushing mechanism is provided on one side of the top of the sealing frame (21), and multiple rotating rods (210) pass through the inner wall of the sealing frame (21). A sealing plate (211) is fixedly connected to the outer wall of the multiple rotating rods (210). Multiple horizontal plates (22) are fixedly connected to the inner wall of the sealing frame (21), and the multiple horizontal plates (22) are located on one side of the sealing plate (211). A secondary sealing mechanism (3) is provided on the other side of the top of the sealing frame (21). The secondary sealing mechanism (3) includes a hydraulic oil tank (32) fixed to the top of the sealing frame (21). A pushing sealing mechanism is provided on one side of the hydraulic oil tank (32). The hydraulic push mechanism includes a hydraulic cylinder (23) fixed to the top of the sealing frame (21), a hydraulic rod (25) slidably connected to the output end of the hydraulic cylinder (23), and a hydraulic oil tank (24) is provided on one side of the hydraulic cylinder (23). A push frame (26) is fixedly connected to the bottom end of the hydraulic rod (25), a rack (27) is fixedly connected to one side of the push frame (26), and the push frame (26) is slidably connected to a limiting groove (28) opened on one side of the outer wall of the sealing frame (21). One end of each of the multiple rotating rods (210) is fixedly connected to a drive gear (29), and a rack (27) meshes with one side of the outer wall of each of the multiple drive gears (29). One end of the outer wall of each of the multiple rotating rods (210) away from the drive gear (29) is fixedly connected to a transmission plate (212), and one end of the transmission plate (212) away from the rotating rod (210) is fixedly connected to a limit rod (213). Each of the multiple limit rods (213) is slidably connected to a limit groove (214) opened on one side of the outer wall of the sealing frame (21).

2. The tunnel main and backup ventilation device according to claim 1, characterized in that, The bottom end of the three-way pipe body (1) is fixedly connected to multiple supporting angle steels (12), and the bottom ends of the multiple supporting angle steels (12) are all fixedly connected to I-beams (13). Two connecting steel frames (14) are fixedly connected between two I-beams (13).

3. The tunnel main and backup ventilation device according to claim 1, characterized in that, One end of the three-way pipe body (1) is fixedly connected to a valve support frame (16), and the bottom end of the valve support frame (16) is fixedly connected to a supporting I-beam (15).

4. A tunnel main and backup ventilation device according to claim 1, characterized in that, A connecting mechanism (4) is provided on one side of the sealing frame (21). The connecting mechanism (4) includes a connecting pipe (41) fixed to one side of the sealing frame (21). A rubber pad (42) is fixedly connected to one side of the outer wall of the connecting pipe (41). A flange ring (43) is fixedly connected to the end of the outer wall of the connecting pipe (41) away from the rubber pad (42). Multiple connecting bolts (44) pass through the outer wall of the flange ring (43). A wind bag connecting ring (45) is fixedly connected to the end of the outer wall of the connecting pipe (41) away from the flange ring (43). Multiple wire connecting rings (46) are fixedly connected to the outer wall of the wind bag connecting ring (45).

5. A tunnel main / standby fan rapid switching ventilation device according to claim 1, characterized in that, The sealing mechanism includes a hydraulic cylinder 2 (31) fixed to one side of the hydraulic oil tank 2 (32). The output end of the hydraulic cylinder 2 (31) is fixedly connected to a push rod (33) via a sliding rod. Multiple connecting buckles (34) are fixedly connected to the outer wall of the push rod (33). A sliding sealing layer (35) is fixedly connected to one side of each of the multiple connecting buckles (34).

6. A tunnel main / standby fan rapid switching ventilation device according to claim 5, characterized in that, The top ends of the plurality of sliding sealing layers (35) are slidably connected to the inner wall of the sliding plate (36), and the plurality of sliding plates (36) are fixedly connected to the inner wall of the supporting valve frame (16).

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