Quick switching ventilation device for main and standby fans of tunnel

Abstract

The invention relates to the field of civil engineering, in particular to a rapid switching ventilation device for main and standby fans of a tunnel. According to the technical scheme, the device comprises a three-way pipe body and a branch pipe fixed to one end of the three-way pipe body, sealing mechanisms are arranged on one side of the outer wall of the three-way pipe body and one side of the outer wall of the branch pipe, each sealing mechanism comprises a sealing frame fixed to one side of the outer wall of the three-way pipe body and one side of the outer wall of the branch pipe, and a hydraulic pushing mechanism is arranged on one side of the top end of each sealing frame. And a plurality of rotating rods penetrate through the inner wall of the sealing frame. According to the rapid switching ventilation device for the main and standby fans of the tunnel, switching time is greatly shortened, reliability and stability of a ventilation system are improved, the situation that the fans are damaged by wind power and the wind power is consumed flat due to downdraft is prevented, and the ventilation efficiency is improved by effectively utilizing natural wind at a hole and optimizing running parameters of the fans. The energy consumption and carbon emission of the fan are reduced, and the green and environment-friendly tunnel ventilation function is achieved.

Description

Technical Field

[0001] The invention relates to the field of civil engineering, and in particular to a tunnel main and standby fan rapid conversion ventilation device. Background Art

[0002] Tunnel construction ventilation, as a key link in tunnel construction safety and quality assurance, is necessary not only in providing construction workers with fresh air, which is a basic need, but also in the comprehensive optimization and control of the internal environment of the tunnel. In the construction of long tunnels and gas tunnels, insufficient ventilation air volume has become a common problem. To address this problem, it is usually possible to increase the number of fans, increase the power of the fans, and increase the number of ventilation ducts to improve the construction environment. However, the existing single fan air supply cannot meet the requirements of the designed 24-hour uninterrupted ventilation, and a backup fan needs to be added. When the main fan fails, the backup fan cannot be quickly activated. When the main and backup fans are switched to each other, the conventional three-ventilation bags are easily damaged and have a short service life. Therefore, this application proposes a tunnel main and backup fan rapid conversion ventilation device. Summary of the invention

[0003] The purpose of the present invention is to propose a tunnel main and standby fan rapid switching ventilation device to address the problems in the background technology that the standby fan cannot be quickly activated when the main fan fails, the conventional three-ventilation bags are easily damaged when the main and standby fans are switched to each other, and the service life is short.

[0004] The technical solution of the present invention is a tunnel main standby fan rapid conversion ventilation device, comprising a three-way pipe body and a branch pipe fixed to one end of the three-way pipe body, and a sealing mechanism is provided on one side of the outer wall of the three-way pipe body and the branch pipe;

[0005] The sealing mechanism comprises a sealing frame fixed to one side of the outer wall of the tee pipe body and the branch pipe, a hydraulic pushing mechanism is arranged on one side of the top end of the sealing frame, and a plurality of rotating rods are passed through the inner wall of the sealing frame, the outer walls of the plurality of rotating rods are fixedly connected with a sealing plate, and the inner wall of the sealing frame is fixedly connected with a plurality of transverse plates, and the plurality of transverse plates are located on one side of the sealing plate;

[0006] A secondary sealing mechanism is arranged on the other side of the top of the sealing frame. The secondary sealing mechanism comprises a second hydraulic oil tank fixed to the top of the sealing frame. A push sealing mechanism is arranged on one side of the second hydraulic oil tank.

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

[0008] Optionally, one end of the multiple rotating rods is fixedly connected to a driving gear, one side of the outer wall of the multiple driving gears is meshed with a rack, one end of the outer wall of the multiple rotating rods away from the driving gear is fixedly connected to a transmission plate, one side of the multiple transmission plates away from one end of the rotating rod is fixedly connected to a limiting rod, and the multiple limiting rods are all slidably connected to a limiting groove 2 opened on one side of the outer wall of the sealing frame.

[0009] Optionally, a plurality of supporting angle steels are fixedly connected to the bottom end of the three-way pipe body, an I-beam is fixedly connected to the bottom ends of the plurality of supporting angle steels, and two connecting steel frames are fixedly connected between two of the I-beams.

[0010] Optionally, one end of the three-way pipe body is fixedly connected to a supporting valve frame, and the bottom end of the supporting valve 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 pad 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 pad, a plurality of connecting bolts penetrate the outer wall of the flange ring, a wind bag connecting ring is fixedly connected to the end of the outer wall of the connecting pipe away from the flange ring, and a plurality of wire connecting rings are fixedly connected to the outer wall of the wind bag connecting ring.

[0012] Optionally, the pushing sealing mechanism includes a hydraulic cylinder 2 fixed to one side of a hydraulic oil tank 2, the output end of the hydraulic cylinder 2 is fixedly connected to a pushing rod via a sliding rod, the outer wall of the pushing rod is fixedly connected to a plurality of connecting clips, and one side of the plurality of connecting clips is fixedly connected to a sliding sealing layer.

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

[0014] Compared with the prior art, the present invention has at least one of the following beneficial technical effects:

[0015] The tunnel main and standby fans rapid switching ventilation device of the present invention enables the main and standby fans to rapidly switch ventilation through the connection of the three-way pipe body and the branch pipe, and guides the wind directly through the three-way pipe body, thereby greatly shortening the switching time and improving the reliability and stability of the ventilation system.

[0016] Furthermore, through the sealing mechanism and the secondary sealing mechanism, the inside of the pipe body is tightly sealed to prevent the fan from being damaged by wind due to backwind and the wind from being wasted. This is more energy-saving and environmentally friendly. By effectively utilizing the natural wind at the tunnel entrance and optimizing the fan operating parameters, the fan's energy consumption and carbon emissions are reduced, achieving the function of green and environmentally friendly tunnel ventilation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic diagram of the three-dimensional structure of a tunnel main and standby fan rapid switching ventilation device according to the present invention is given;

[0018] Figure 2 A schematic diagram of a multi-angle three-dimensional structure of a tunnel main and standby fan rapid conversion ventilation device according to the present invention is provided;

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

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

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

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

[0023] Reference numerals: 1, three-way pipe 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, cross plate; 23, hydraulic cylinder 1; 24, hydraulic oil tank 1; 25, hydraulic rod; 26, pushing frame; 27, rack; 28, limiting groove 1; 29, driving gear; 210, rotating rod; 211 1. Sealing plate; 212. Transmission plate; 213. Limit rod; 214. Limit groove 2; 3. Secondary sealing mechanism; 31. Hydraulic cylinder 2; 32. Hydraulic oil tank 2; 33. Push rod; 34. Connecting buckle; 35. Sliding sealing layer; 36. Sliding plate; 4. Connecting mechanism; 41. Connecting pipe; 42. Rubber pad; 43. Flange ring; 44. Connecting bolt; 45. Air bag connecting ring; 46. Wire connecting ring. DETAILED DESCRIPTION

[0024] The technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0025] The components of the embodiments of the present invention generally described and shown in the drawings herein may be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention.

[0026] Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present invention.

[0027] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0028] It should be noted that the terms "include", "comprises" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0029] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] Example 1

[0031] like Figure 1 , Figure 3 , Figure 4 and Figure 5 As shown, a tunnel main and standby fan rapid conversion ventilation device proposed by the present invention comprises 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 the three-way pipe body 1 and the branch pipe 11, the sealing mechanism 2 comprises 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 end of the sealing frame 21, and a plurality of rotating rods 210 are penetrated through the inner wall of the sealing frame 21, the outer walls of the plurality of rotating rods 210 are fixedly connected to sealing plates 211, and a plurality of transverse plates 22 are fixedly connected to the inner wall of the sealing frame 21, and the plurality of transverse plates 22 are located on one side of the sealing plate 211;

[0032] Through the above-mentioned arrangement, by setting up the sealing frame 21, the horizontal plate 22 inside the device can be supported, and the hydraulic rod 25 is driven by the hydraulic cylinder 23 to slide up and down, so that the hydraulic rod 25 can drive the push frame 26 and the rack 27 to slide up and down, and drive the multiple driving gears 29 meshing with the rack 27 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 to prevent the occurrence of backflow.

[0033] like Figure 1 and Figure 6 As shown, a secondary sealing mechanism 3 is provided at the other side of the top of the sealing frame 21. The secondary sealing mechanism 3 includes a hydraulic oil tank 2 32 fixed to the top of the sealing frame 21. A push sealing mechanism is provided at one side of the hydraulic oil tank 2 32.

[0034] Through the above-mentioned arrangement, by setting up the hydraulic cylinder 2 31, the device can drive the push rod 33 to slide up and down through the hydraulic cylinder 2 31, and drive the connecting buckle 34 and the sliding sealing layer 35 to slide up and down in the sliding plate 36 through the push rod 33, thereby achieving the effect of secondary sealing of the inside of the three-way pipe body 1, so that the inside of the pipe body is tightly sealed, preventing the fan from being damaged by wind due to backwind and the wind from being wasted, which is more energy-saving and environmentally friendly.

[0035] In this embodiment, the connection between the three-way pipe body 1 and the branch pipe 11 allows the main and standby fans to quickly switch ventilation, and the wind is directly guided through the three-way pipe body 1, which greatly shortens the switching time and improves the reliability and stability of the ventilation system. By setting the sealing frame 21, the horizontal plate 22 inside the device is supported, and the hydraulic rod 25 is driven by the hydraulic cylinder 23 to slide up and down, so that the hydraulic rod 25 can drive the push frame 26 and the rack 27 to slide up and down, so as to drive the multiple driving gears 29 meshing with the rack 27 to rotate, thereby driving the rotating rod 210 and the sealing plate 211 rotate, so that the sealing plate 211 can be closed with the cross plate 22 to prevent the occurrence of backflow. By setting the hydraulic cylinder 231, the device can drive the push rod 33 to slide up and down through the hydraulic cylinder 231, and drive the connecting buckle 34 and the sliding sealing layer 35 to slide up and down in the sliding plate 36 through the push rod 33, thereby achieving the effect of secondary sealing of the inside of the three-way pipe body 1, making the inside of the pipe body tightly sealed, preventing the fan from being damaged by wind due to backflow and the wind from being wasted, which is more energy-saving and environmentally friendly.

[0036] Example 2

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

[0038] Through the above arrangement, the push frame 26 and the rack 27 slide up and down, thereby driving the plurality of driving gears 29 meshing with the rack 27 to rotate.

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

[0040] Through the above arrangement, the push frame 26 and the rack 27 slide up and down to drive the multiple driving gears 29 meshing with the rack 27 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 cross plate 22.

[0041] like Figure 1 and Figure 2 As shown, the bottom end of the three-way pipe body 1 is fixedly connected to a plurality of supporting angle steels 12, the bottom ends of the plurality of supporting angle steels 12 are all fixedly connected to an I-beam 13, and two connecting steel frames 14 are fixedly connected between two I-beams 13;

[0042] Through the above arrangement, by providing the supporting angle steel 12, the device as a whole can be supported, and by providing the I-beam 13 and the connecting steel frame 14, the device support is made more stable.

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

[0044] Through the above arrangement, by arranging the supporting valve frame 16 and the supporting I-beam 15 , the device is able to fix the sealing mechanism 2 .

[0045] like Figure 1 and Figure 3As shown, a connection mechanism 4 is provided at one side of the sealing frame 21, and the connection mechanism 4 includes a connection 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 connection pipe 41, and a flange ring 43 is fixedly connected to one end of the outer wall of the connection pipe 41 away from the rubber pad 42, and a plurality of connection bolts 44 penetrate the outer wall of the flange ring 43, and a wind bag connection ring 45 is fixedly connected to one end of the outer wall of the connection pipe 41 away from the flange ring 43, and a plurality of wire connection rings 46 are fixedly connected to the outer wall of the wind bag connection ring 45;

[0046] Through the above-mentioned arrangement, by arranging the rubber pad 42 and the flange ring 43, the device can be more tightly connected to the machine port of the external main fan to prevent air leakage, and by arranging the wind bag connecting ring 45 and the wire connecting ring 46, the device can be more tightly connected to the wind bag.

[0047] like Figure 1 and Figure 6 As shown, the push sealing mechanism includes a hydraulic cylinder 31 fixed to one side of a hydraulic oil tank 32, the output end of the hydraulic cylinder 31 is fixedly connected to a push rod 33 through a sliding rod, the outer wall of the push rod 33 is fixedly connected to a plurality of connecting buckles 34, and one side of the plurality of connecting buckles 34 is fixedly connected to a sliding sealing layer 35;

[0048] Through the above-mentioned arrangement, by setting up the hydraulic cylinder 2 31, the device can drive the push rod 33 to slide up and down through the hydraulic cylinder 2 31, and drive the connecting buckle 34 and the sliding sealing layer 35 to slide up and down in the sliding plate 36 through the push rod 33, thereby achieving the effect of secondary sealing of the inside of the three-way pipe body 1.

[0049] like Figure 1 and Figure 6 As shown, the top ends of the plurality of sliding sealing layers 35 are all slidably connected to the inner wall of the sliding plate 36, and the plurality of sliding plates 36 are all fixedly connected to the inner wall of the supporting valve frame 16, so that the sliding sealing layers 35 can seal the inside of the tube body.

[0050] The above specific embodiments are only several optional embodiments of the present invention. Based on the technical solutions of the present invention and the relevant inspirations 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 standby fan rapid switching ventilation 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 the three-way pipe body (1) and the branch pipe (11); The sealing mechanism (2) comprises 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 driving mechanism is arranged on one side of the top end of the sealing frame (21); a plurality of rotating rods (210) penetrate the inner wall of the sealing frame (21); the outer walls of the plurality of rotating rods (210) are fixedly connected to a sealing plate (211); the inner wall of the sealing frame (21) is fixedly connected to a plurality of transverse plates (22); the plurality of transverse 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 end of the sealing frame (21), and the secondary sealing mechanism (3) comprises a second hydraulic oil tank (32) fixed to the top end of the sealing frame (21), and a push sealing mechanism is provided on one side of the second hydraulic oil tank (32).

2. A tunnel main and standby fan rapid switching ventilation device according to claim 1, characterized in that: The hydraulic pushing mechanism comprises a hydraulic cylinder (23) fixed to the top of the sealing frame (21); the output end of the hydraulic cylinder (23) is slidably connected to a hydraulic rod (25); a hydraulic oil tank (24) is provided on one side of the hydraulic cylinder (23); the bottom end of the hydraulic rod (25) is fixedly connected to a pushing frame (26); a rack (27) is fixedly connected to one side of the pushing frame (26); and the pushing frame (26) is slidably connected to a limiting groove (28) provided on one side of the outer wall of the sealing frame (21).

3. A tunnel main and standby fan rapid switching ventilation device according to claim 1, characterized in that: One end of the plurality of rotating rods (210) is fixedly connected to a driving gear (29), one side of the outer wall of the plurality of driving gears (29) is meshed with a rack (27), one end of the outer wall of the plurality of rotating rods (210) away from the driving gear (29) is fixedly connected to a transmission plate (212), one side of the plurality of transmission plates (212) away from one end of the rotating rod (210) is fixedly connected to a limiting rod (213), and the plurality of limiting rods (213) are all slidably connected to a second limiting groove (214) provided on one side of the outer wall of the sealing frame (21).

4. A tunnel main and standby fan rapid switching ventilation device according to claim 1, characterized in that: The bottom end of the three-way pipe body (1) is fixedly connected to a plurality of supporting angle steels (12), the bottom ends of the plurality of supporting angle steels (12) are all fixedly connected to an I-beam (13), and two connecting steel frames (14) are fixedly connected between two of the I-beams (13).

5. A tunnel main and standby fan rapid switching ventilation device according to claim 1, characterized in that: One end of the three-way pipe body (1) is fixedly connected to a supporting valve frame (16), and the bottom end of the supporting valve frame (16) is fixedly connected to a supporting I-beam (15).

6. A tunnel main and standby fan rapid switching 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) comprising a connecting pipe (41) fixed to one side of the sealing frame (21), a rubber pad (42) being fixedly connected to one side of the outer wall of the connecting pipe (41), and a flange ring (43) being fixedly connected to one end of the outer wall of the connecting pipe (41) away from the rubber pad (42), a plurality of connecting bolts (44) passing through the outer wall of the flange ring (43), a wind bag connecting ring (45) being fixedly connected to one end of the outer wall of the connecting pipe (41) away from the flange ring (43), and a plurality of wire connecting rings (46) being fixedly connected to the outer wall of the wind bag connecting ring (45).

7. A tunnel main and standby fan rapid switching ventilation device according to claim 1, characterized in that: The push seal mechanism comprises a hydraulic cylinder 2 (31) fixed to one side of a 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; the outer wall of the push rod (33) is fixedly connected to a plurality of connection buckles (34); and one side of each of the plurality of connection buckles (34) is fixedly connected to a sliding seal layer (35).

8. A tunnel main and standby fan rapid switching ventilation device according to claim 7, characterized in that: The top ends of the plurality of sliding sealing layers (35) are all slidably connected to the inner wall of the sliding plate (36), and the plurality of sliding plates (36) are all fixedly connected to the inner wall of the supporting valve frame (16).

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