Smoke exhausting and dust removing device for tunnel

Abstract

The utility model discloses a tunnel smoke exhaust and dust removal device, which belongs to the technical field of tunnel ventilation and smoke exhaust and comprises a bearing plate, a detachable filter screen is mounted on the bearing plate, an exhaust fan is arranged on the back of the filter screen, an air outlet pipe of the exhaust fan is connected with a tunnel exhaust shaft, and a fire-fighting spraying device is further arranged on the bearing plate. Comprising a spraying pipeline, a pressurizing device and a spray head, the pressurizing device is arranged on the spraying pipeline, and the spraying pipeline is connected with the spray head and fixed to the bearing plate. According to the tunnel fire-fighting spraying system, the tunnel fire-fighting spraying system is arranged on the top or the lateral direction of a tunnel, smoke can be effectively absorbed and filtered, large-range pollution caused by smoke diffusion is reduced when abnormal conditions such as tunnel fire disasters occur, the combined fire-fighting spraying system is used in cooperation, air in the tunnel is effectively purified, the spraying effect is fully atomized through the pressurizing device, and the tunnel fire-fighting effect is improved. And the temperature in the tunnel and the pollution to jammed and detained vehicles are reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of tunnel ventilation and smoke exhaust, and particularly relates to a tunnel smoke exhaust and dust removal device. Background Technique

[0002] In the prior art, when abnormal situations such as fires occur in traffic tunnels, the jet fans in the tunnels are triggered for smoke exhaust, and at the same time, fire-fighting facilities are activated to start fire-fighting operations. The smoke exhaust in this way needs to be discharged forward through the pipeline space formed by the tunnel itself, which will pollute the vehicles in front, or the environmental pollution of the vehicles behind will be caused due to the relatively fast diffusion speed of the smoke and its spread backward, which is harmful to the physical and mental health of the drivers and passengers. Therefore, important tunnels now adopt a pre-set exhaust system on the side walls to quickly remove the obstacles behind the tunnel by laterally absorbing the smoke and improve the efficiency of dredging the tunnel. However, this method also has limitations for a relatively wide area, it is difficult to quickly absorb, and it cannot solve the high-temperature roasting of the tunnel dome and other coatings by the flames. Secondly, it is inconvenient to clean the equipment after smoke exhaust or the smoke and dust lack treatment, resulting in pipeline pollution and being unfavorable to environmental protection. Content of the Utility Model

[0003] The purpose of the utility model is to provide a tunnel smoke exhaust and dust removal device to solve the drawbacks that the smoke exhaust equipment is inconvenient to clean and the smoke and dust are not treated in the above background technique. At the same time, the auxiliary functions of fire sprinkler and spray purification space are added to improve the emergency handling ability of tunnel fire accidents.

[0004] To achieve the above purpose, the technical solution provided by the utility model is as follows:

[0005] A tunnel smoke exhaust and dust removal device includes a bearing plate, on which an inner plug board is installed, and a filter screen and a nozzle outlet are arranged thereon. A suction fan is arranged on the back of the filter screen. The air outlet of the suction fan is connected to the tunnel exhaust shaft, and the air suction port is docked with the filter screen on the inner plug board through an integrated cover. A fire sprinkler device is also arranged on the bearing plate, including a sprinkler pipeline, a pressurizing device and a nozzle. The pressurizing device is fixedly arranged on the sprinkler pipeline. The sprinkler pipeline is connected to the nozzle and fixed on the inner plug board.

[0006] Furthermore, an installation board is vertically arranged on the bearing plate, and a power control box is arranged on the installation board. The power control box is electrically connected to the suction fan and the pressurizing device. The power control box is connected with a smoke sensor and a fire source detection device, and triggers to turn on the power supply to start the suction fan and the pressurizing device.

[0007] Further, the inner plug-in board is plugged and installed at the inner center of the bearing plate. The filter screen and the integrated cover on the exhaust fan are connected in an aligned manner through rubber sealing, which can reduce the occupied space and ensure the smoking effect. In addition, an insertion slot is provided at the connection position between the inner plug-in board and the bearing plate. The insertion slot and the bearing plate are of an integral structure. Spray pipe alignment holes are preset on the inner plug-in board, and the spray heads are detachably installed on the spray pipes.

[0008] Further, shock-absorbing connecting columns of the exhaust fan are provided on the mounting plate, which can reduce the vibration noise during the operation of the exhaust fan.

[0009] Further, a polyester fiber smoke and dust adsorption structure is provided on the inner surface of the integrated cover, and a fluffy multi-layer mesh structure is adopted to improve the adsorption effect.

[0010] Further, the pressurizing device is also provided with a foam generator, and the foam or water atomization effect can be controlled by the pressure magnitude.

[0011] Further, a top plate is fixedly provided at the upper end of the inner plug-in board. Connecting end blocks are connected and arranged on the outer walls on both sides of the top plate. The two connecting end blocks are fixedly connected to the bearing plate by screws, which is convenient for installation, disassembly and cleaning.

[0012] Beneficial effects: The device of the present utility model has two major features of detachable cleaning of the filter screen and spray cooling and purification. Through the design of the integrated cover and the filter screen, the purification effect can be effectively increased, and the smoke and dust are collected. The spray atomization is used to cool down and adsorb the suspended particulate dust in the air, which plays a role in protecting the physical and mental health of the vehicles and passengers staying behind in the tunnel, quickly purifying the space. Secondly, the centralized design of the spray system aims to prevent the temperature influence such as the high-temperature roasting of the tunnel dome by the flame, reduce the temperature of the smoke and dust, and extend the service life of the equipment. Description of the Drawings

[0013] Figure 1 is a schematic structural diagram of the present utility model;

[0014] Figure 2 is a schematic rear view structural diagram of the present utility model Figure 1 ;

[0015] Figure 3 is a schematic installation effect diagram of the present utility model;

[0016] Figure 4 is a schematic rear view structural diagram of the present utility model Figure 2 。

[0017] In the figure: 1, bearing plate; 2, mounting hole block; 3, reinforcement link; 4, filter screen; 5, nozzle; 6, top plate; 7, spray pipe; 8, foam generator; 9, connection end block; 10, pressurizing device; 11, integrated hood; 12, mounting plate; 13, exhaust fan; 14, power supply; 15, sensor connection control end; 16, dust-proof cover plate; 17, wire outlet port; 18, shock-absorbing connection column; 19, insertion slot; 20, internal insertion plate; 21, inner surface of the integrated hood; 22, nozzle outlet; 23, pressurizing turbine. Specific implementation mode

[0018] To understand the technical solution more clearly, the following gives an embodiment for the implementation effect of the present utility model in conjunction with the attached drawings. Please refer to Figures 1-4 :

[0019] A tunnel smoke exhaust and dust removal device includes a bearing plate 1. For the convenience of installation and fixation, the bearing plate 1 is provided with a mounting hole block 2 and a reinforcement link 3. In the middle part of the bearing plate 1, an internal insertion plate 20 is provided. The internal insertion plate 20 is inserted into the bearing plate 1 through an insertion slot 19. The upper end of the internal insertion plate 20 is welded with a top plate 6. The top plate 6 serves to carry two connection end blocks 9. Connection end blocks 9 are welded on the outer walls on both sides of the top plate 6. The two connection end blocks 9 play a role in assisting the installation of screws. The two connection end blocks 9 are fixedly connected to the bearing plate 1 by screws.

[0020] On the insertion plate 20, a filter screen 4 is provided at the central hole position, and an integrated hood 11 is provided behind it to gather the smoking effect. The integrated hood 11 is provided with a rubber sealing ring at the connection with the filter screen 4 to prevent air leakage and reduce the suction of the exhaust fan 13. One end of the exhaust fan 13 is connected to the integrated hood 11, and the other end outlet is connected to the tunnel exhaust shaft. The exhaust fan 13 is installed on the mounting plate 12 through a shock-absorbing connection column 18. The mounting plate 12 is vertically arranged on the bearing plate 1. A power supply 14 is also provided on the mounting plate 12. Above the power supply 14, a sensor connection control end 15 and a dust-proof cover plate 16 are arranged in sequence. The power supply 14 is connected to the exhaust fan 13 and the pressurizing device 10 through wires, passing through the wire outlet port 17 to prevent dust pollution from damaging the insulation or conductivity. Preferably, a fluffy dust adsorption self-structure such as polyester fiber is provided on the inner surface 21 of the integrated hood.

[0021] Above the exhaust fan 13, a fire sprinkler device is also provided, including a spray pipe 7, a nozzle 5, a pressurizing device 10 and a foam generator 8. The pressurizing device 10 is internally provided with a pressurizing turbine 23 and is connected to the spray pipe 7 together with the foam generator 8. A nozzle 5 is provided at the outlet. The nozzle 5 is installed and fixed at the nozzle outlet 22 on the internal insertion plate 20.

[0022] During operation, smoke alarms and fire sensors are generally installed in the tunnel. After being triggered, the signals are sent to the control terminal 15 connected to the sensors, activating the connected power supply 14 to drive the exhaust fan 13 and the fire sprinkler system to carry out smoking and fire extinguishing operations. When the fire sprinkler system sprays water mist, it can effectively improve the adhesion of water droplets to soot, purifying the air in the tunnel. When a fire occurs in the tunnel due to the presence of a fire source, the foam generator 8 that is activated generates foam and sprays it through the nozzle 5 to achieve the purpose of extinguishing the fire. After the foam is consumed or not used, the water mist sprayed by the nozzle 5 can be used to clean the spray pipeline 7, as well as the residual smoke, ground sewage, and soot dropped by vehicles in the tunnel. The smoke generated in the tunnel is suction-treated through the filter screen 4 and the adsorption structure provided on the integrated hood 11, and the treated smoke is transported to the tunnel exhaust shaft through the exhaust pipe. The smoke exhaust device after the work is completed can be disassembled to clean the inner plug board 20 to improve convenience. The installation of the present utility model at the top of the tunnel can effectively improve the effect, especially for wider tunnels, and the effect is better when combined with the existing sidewall smoke exhaust fans.

Claims

1. A tunnel smoke exhaust and dust removal device, characterized in that, It includes a carrier plate (1) on which an internal plug-in plate (20) is installed, with a filter screen (4) and a nozzle outlet (22) provided thereon. A suction fan (13) is provided on the back of the filter screen (4). The air outlet of the suction fan (13) is connected to a tunnel exhaust shaft, and the air inlet is connected to the filter screen (4) on the internal plug-in plate (20) through an integrated hood (11). A fire sprinkler device is also provided on the carrier plate (1), including a sprinkler pipe (7), a pressurizing device (10) and a nozzle (5). The pressurizing device (10) is fixedly arranged on the sprinkler pipe (7), and the sprinkler pipe (7) is connected to the nozzle (5) and fixed on the internal plug-in plate (20).

2. The tunnel smoke exhaust and dust removal device according to claim 1, characterized in that, An installation plate (12) is vertically arranged on the carrier plate (1), and a power supply (14) is arranged on the installation plate (12). The power supply (14) is electrically connected to the suction fan (13) and the pressurizing device (10).

3. The tunnel smoke exhaust and dust removal device according to claim 1, characterized in that, The internal plug-in plate (20) is inserted and installed at the center inside the carrier plate (1). The filter screen (4) and the integrated hood (11) on the suction fan (13) are aligned and connected through rubber sealing. An insertion slot (19) is arranged at the connection position between the internal plug-in plate (20) and the carrier plate (1). The insertion slot (19) and the carrier plate (1) are of an integral structure. Alignment holes for the sprinkler pipe (7) are preset on the internal plug-in plate (20), and the nozzle (5) is detachably installed on the sprinkler pipe (7).

4. The tunnel smoke exhaust and dust removal device according to claim 2, characterized in that, A shock-absorbing connecting column (18) of the suction fan (13) is arranged on the installation plate (12).

5. The tunnel smoke exhaust and dust removal device according to claim 1, wherein An adsorption structure is arranged on the inner surface (21) of the integrated hood, made of polyester fiber material.

6. The tunnel smoke exhaust and dust removal device according to claim 1, wherein, The pressurizing device (10) is also provided with a foam generator (8).

7. The tunnel smoke exhaust and dust removal device according to claim 3, characterized in that: The upper end of the internal plug-in plate (20) is fixedly provided with a top plate (6). Connection end blocks (9) are connected and arranged on the outer walls on both sides of the top plate (6). The two connection end blocks (9) are fixedly connected to the carrier plate (1) by screws.

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