Tunnel smoke exhaust device

Abstract

The utility model provides a tunnel smoke exhaust device, which belongs to the technical field of tunnel smoke exhaust and comprises a smoke exhaust pipeline, a smoke exhaust component and a filter component. A connecting frame is mounted on the inner wall of the smoke exhaust pipeline, and a protective fence is mounted in the connecting frame; the mounting box is mounted at one end of the exhaust pipe, after smoke gas sucked in the tunnel enters the mounting box, the filter cartridge mounted in the mounting box filters the smoke gas, so that particles and harmful substances in exhausted smoke are reduced, and when excessive particle impurities are filtered on the surface of the filter cartridge, the smoke gas is filtered out by the filter cartridge. The pulse generator works to send out airflow which is blown to the filter cartridge through the air blowing nozzle, so that particles attached to the surface of the filter cartridge are blown off, and the filtering effect of the filter cartridge is guaranteed. A collecting cover is arranged at the bottom end of the mounting box and is buckled with hooks at the bottom of the mounting box through lock catches mounted on the periphery; the collecting cover is used for collecting particle impurities blown off from the surface of the filter cartridge, and the collecting cover is convenient to take down for cleaning.

Description

Technical Field

[0001] This utility model relates to the field of tunnel smoke extraction technology, specifically a tunnel smoke extraction device. Background Technology

[0002] Currently, my country has become the country with the largest number of tunnel projects, the most complex projects, and the fastest development in the world. While the construction of highway tunnels has brought convenience to economic development and people's production and life, it has also put forward higher requirements for tunnel safety, especially the safety of personnel evacuation in the event of a tunnel fire. As the escape route for people in the event of a fire, the reasonable layout and smoke prevention measures of the personnel evacuation passages in highway tunnels are crucial. Existing tunnel ventilation and smoke exhaust devices usually directly discharge the extracted smoke into the air. This smoke contains many harmful substances, and direct discharge will cause significant pollution to the surrounding air. Utility Model Content

[0003] The purpose of this invention is to provide a tunnel smoke exhaust device to solve the problem mentioned in the background art that existing tunnel ventilation and smoke exhaust devices usually directly discharge the extracted smoke into the air, and that this smoke contains many harmful substances, and direct discharge will cause significant pollution to the surrounding air.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a tunnel smoke exhaust device, comprising a smoke exhaust pipe, a smoke exhaust assembly, and a filter assembly;

[0005] Wherein: a connecting frame is installed on the inner wall of the smoke exhaust pipe, and a protective railing is installed inside the connecting frame;

[0006] The smoke exhaust assembly includes a mounting bracket installed on top of the smoke exhaust duct. A drive motor is mounted on the top of the mounting bracket, and a bearing seat is mounted in the middle of the mounting bracket. A drive shaft is rotatably mounted inside the bearing seat. The output end of the drive motor is connected to one end of the drive shaft. A duct is mounted on one side of the mounting bracket, and a fan is installed inside the duct. The other end of the drive shaft is fixedly mounted to the fan. An exhaust pipe is installed at one end of the duct, and one end of the exhaust pipe is installed on top of the smoke exhaust duct. An exhaust pipe is installed at the other end of the duct.

[0007] The filter assembly includes a mounting box fixedly installed at one end of an exhaust duct. Several filter cartridges are installed inside the mounting box. A pulse generator is fixedly installed on one side of the outside of the mounting box. Multiple air nozzles are installed on the surface of the pulse generator. The air nozzles penetrate the mounting box and extend to the top of the filter cartridges. An exhaust pipe is installed on the top of the mounting box.

[0008] As a preferred embodiment of this utility model: the output end of the drive motor is fixedly equipped with a driving pulley, and one end of the transmission shaft is fixedly equipped with a driven pulley. The driving pulley and the driven pulley are connected by a transmission belt.

[0009] As a preferred embodiment of this utility model: the bottom of the installation box is provided with a collection cover, the collection cover is equipped with a lock around its perimeter, and the bottom of the installation box is equipped with hooks, and the locks and hooks are fastened together.

[0010] As a preferred embodiment of this utility model: mounting brackets are installed on both sides of the exhaust pipe, and U-shaped fixing bolts are installed on the surface of the mounting brackets.

[0011] As a preferred embodiment of this utility model, the surfaces of the mounting bracket and the U-shaped fixing bolt are hot-dip galvanized.

[0012] As a preferred embodiment of this utility model, a smoke sensor is installed on one side of the outer wall of the exhaust pipe.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] (1) An installation box is installed at one end of the exhaust pipe. After the smoke and dust gas drawn in the tunnel enters the installation box, the filter cartridge installed inside the installation box filters the smoke and dust gas, thereby reducing the particles and harmful substances in the exhaust gas. When there are too many particles and impurities on the surface of the filter cartridge, the pulse generator works to generate airflow through the air nozzle to blow the filter cartridge, thereby blowing off the particles attached to the surface of the filter cartridge and ensuring the filtration effect of the filter cartridge.

[0015] (2) The exhaust assembly is provided. The drive motor rotates and drives the active pulley to rotate. The active pulley drives the driven pulley through the transmission belt. The driven pulley drives the fan to rotate inside the air duct through the transmission shaft, so that negative pressure is formed inside the air duct. The exhaust pipe installed at one end of the air duct is connected to the exhaust pipe, so that the dense smoke inside the exhaust pipe is discharged through the exhaust pipe, avoiding the accumulation of dense smoke inside the tunnel. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the smoke exhaust assembly structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the filter assembly structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the installation structure of the collection cover of this utility model.

[0020] In the diagram: 1. Smoke exhaust duct; 2. Connecting frame; 3. Guardrail; 4. Smoke exhaust assembly; 41. Mounting bracket; 42. Drive motor; 43. Drive shaft; 44. Air duct; 45. Fan; 46. Exhaust duct; 47. Exhaust duct; 5. Filter assembly; 51. Mounting box; 52. Filter cartridge; 53. Pulse generator; 54. Air nozzle; 55. Exhaust pipe; 6. Drive pulley; 7. Driven pulley; 8. Drive belt; 9. Collection hood; 10. Lock; 11. Hook; 12. Mounting bracket; 13. U-shaped fixing bolt; 14. Smoke sensor. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0022] Please see Figures 1-4 A tunnel smoke exhaust device includes: a smoke exhaust duct 1, a smoke exhaust assembly 4, and a filter assembly 5; a connecting frame 2 is installed on the inner wall of the smoke exhaust duct 1, and a protective railing 3 is installed inside the connecting frame 2;

[0023] Please see Figure 1 , Figure 2 The smoke exhaust assembly 4 includes a mounting bracket 41 installed on the top of the smoke exhaust duct 1. A drive motor 42 is installed on the top of the mounting bracket 41. A bearing seat is installed in the middle of the mounting bracket 41. A transmission shaft 43 is rotatably installed inside the bearing seat. The output end of the drive motor 42 is connected to one end of the transmission shaft 43. A duct 44 is installed on one side of the mounting bracket 41. A fan 45 is installed inside the duct 44. The other end of the transmission shaft 43 is fixedly installed to the fan 45. An exhaust pipe 46 is installed at one end of the duct 44. One end of the exhaust pipe 46 is installed on the top of the smoke exhaust duct 1. An exhaust pipe 47 is installed at the other end of the duct 44. A drive pulley 6 is fixedly installed at the output end of the drive motor 42. A driven pulley 7 is fixedly installed at one end of the transmission shaft 43. The drive pulley 6 and the driven pulley 7 are connected by a transmission belt 8.

[0024] In practical use: the drive motor 42 at the top of the mounting bracket 41 rotates, which drives the active pulley 6 to rotate. The active pulley 6 drives the driven pulley 7 through the transmission belt 8. The driven pulley 7 drives the fan 45 to rotate inside the air duct 44 through the transmission shaft 43, which creates a negative pressure inside the air duct 44. The exhaust pipe 46 installed at one end of the air duct 44 is connected to the smoke exhaust pipe 1, so that the dense smoke inside the smoke exhaust pipe 1 is discharged through the exhaust pipe 47, preventing the dense smoke from accumulating inside the tunnel.

[0025] Please see Figure 1 , Figure 3 The filter assembly 5 includes a mounting box 51 fixedly installed at one end of the exhaust pipe 47. Several filter cartridges 52 are installed inside the mounting box 51. A pulse generator 53 is fixedly installed on one side of the outside of the mounting box 51. Multiple sets of air nozzles 54 are installed on the surface of the pulse generator 53. The air nozzles 54 penetrate the mounting box 51 and extend to the top of the filter cartridges 52. An exhaust pipe 55 is installed on the top of the mounting box 51.

[0026] In practical use: An installation box 51 is installed at one end of the exhaust pipe 47. After the smoke and dust gas drawn in the tunnel enters the installation box 51, the filter cartridge 52 installed inside the installation box 51 filters the smoke and dust gas, thereby reducing the particles and harmful substances in the exhaust gas. When there are too many particles and impurities on the surface of the filter cartridge 52, the pulse generator 53 works to generate airflow that blows onto the filter cartridge 52 through the air nozzle 54, thereby blowing off the particles attached to the surface of the filter cartridge 52, ensuring the filtration effect of the filter cartridge 52. The filtered gas is discharged through the exhaust pipe 55.

[0027] Please see Figure 4 The bottom of the installation box 51 is provided with a collection cover 9, and the collection cover 9 is equipped with a lock 10 around its perimeter. The bottom of the installation box 51 is equipped with a hook 11 around its perimeter, and the lock 10 and the hook 11 are fastened together.

[0028] In practical use: The bottom of the installation box 51 is equipped with a collection cover 9. The collection cover 9 is fastened to the hook 11 at the bottom of the installation box 51 by the locking buckles 10 installed around the perimeter. The collection cover 9 is used to collect particulate impurities blown off the surface of the filter cartridge 52. The collection cover 9 is easy to remove for cleaning.

[0029] Please see Figure 1 The exhaust pipe 1 is equipped with mounting brackets 12 on both sides, and U-shaped fixing bolts 13 are installed on the surface of the mounting brackets 12. The surfaces of the mounting brackets 12 and the U-shaped fixing bolts 13 are hot-dip galvanized.

[0030] In practical use: Mounting brackets 12 are installed on both sides of the smoke exhaust pipe 1. The mounting brackets 12 are installed on the installation structure inside the tunnel by U-shaped fixing bolts 13 on the surface, which facilitates the installation and arrangement of the smoke exhaust pipe 1. The mounting brackets 12 and U-shaped fixing bolts 13 are hot-dip galvanized to give them good corrosion resistance.

[0031] Please see Figure 1 A smoke sensor 14 is installed on one side of the outer wall of the exhaust duct 1.

[0032] In practical use: The smoke sensor 14 installed on the outside of the smoke exhaust duct 1 is used to detect smoke inside the tunnel. When a fire occurs and dense smoke is produced, it can detect the dense smoke and trigger an alarm.

[0033] An installation box 51 is installed at one end of the exhaust pipe 47. After the smoke and dust gas drawn in the tunnel enters the installation box 51, the filter cartridge 52 installed inside the installation box 51 filters the smoke and dust gas, thereby reducing the particles and harmful substances in the exhaust gas. When there are too many particles and impurities on the surface of the filter cartridge 52, the pulse generator 53 works to generate airflow that blows onto the filter cartridge 52 through the air nozzle 54, thereby blowing off the particles attached to the surface of the filter cartridge 52, ensuring the filtration effect of the filter cartridge 52. The filtered gas is discharged through the exhaust pipe 55.

[0034] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A tunnel smoke extraction device, characterized in that, include: Smoke exhaust pipe (1), the inner wall of the smoke exhaust pipe (1) is equipped with a connecting frame (2), and the inside of the connecting frame (2) is equipped with a guardrail (3); Smoke exhaust assembly (4), the smoke exhaust assembly (4) includes a mounting bracket (41) installed on the top of the smoke exhaust duct (1), a drive motor (42) is installed on the top of the mounting bracket (41), a bearing seat is installed in the middle of the mounting bracket (41), a transmission shaft (43) is rotatably installed inside the bearing seat, the output end of the drive motor (42) is connected to one end of the transmission shaft (43), a duct (44) is installed on one side of the mounting bracket (41), a fan (45) is installed inside the duct (44), the other end of the transmission shaft (43) is fixedly installed to the fan (45), an exhaust pipe (46) is installed at one end of the duct (44), one end of the exhaust pipe (46) is installed on the top of the smoke exhaust duct (1), and an exhaust pipe (47) is installed at the other end of the duct (44); The filter assembly (5) includes a mounting box (51) fixedly installed at one end of the exhaust pipe (47). Several filter cartridges (52) are installed inside the mounting box (51). A pulse generator (53) is fixedly installed on one side of the outside of the mounting box (51). Multiple air nozzles (54) are installed on the surface of the pulse generator (53). The air nozzles (54) penetrate the mounting box (51) and extend to the top of the filter cartridges (52). An exhaust pipe (55) is installed on the top of the mounting box (51).

2. A tunnel smoke extraction device according to claim 1, characterized in that: The output end of the drive motor (42) is fixedly equipped with a drive pulley (6), and one end of the transmission shaft (43) is fixedly equipped with a driven pulley (7). The drive pulley (6) and the driven pulley (7) are connected by a transmission belt (8).

3. A tunnel smoke extraction device according to claim 1, characterized in that: The bottom of the installation box (51) is provided with a collection cover (9), and the collection cover (9) is equipped with a lock (10) around its perimeter. The bottom of the installation box (51) is equipped with a hook (11), and the lock (10) and the hook (11) are fastened together.

4. A tunnel smoke extraction device according to claim 1, characterized in that: The exhaust pipe (1) is equipped with mounting brackets (12) on both sides, and U-shaped fixing bolts (13) are installed on the surface of the mounting brackets (12).

5. A tunnel smoke extraction device according to claim 4, characterized in that: The mounting bracket (12) and U-shaped fixing bolt (13) are hot-dip galvanized.

6. A tunnel smoke extraction device according to claim 1, characterized in that: A smoke sensor (14) is installed on one side of the outer wall of the exhaust pipe (1).

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