Emergency smoke removal device for tunnel

Abstract

The utility model provides a tunnel emergency smoke removal device which comprises an outer shell, a plasma reactor is installed in the outer shell, the plasma reactor divides an inner cavity of the outer shell into two cavities, one cavity is an air inlet cavity, the other cavity is an air outlet cavity, a fan is installed in the air outlet cavity, and the air inlet cavity is communicated with the air outlet cavity. An air outlet of the fan is communicated with outside air and is used for discharging the treated flue gas outwards; the smoke exhaust device is simple in design structure and convenient to use, smoke in the tunnel emergency channel can be rapidly sucked into the outer shell by starting the draught fan, and the smoke is exhausted into the channel after being absorbed and treated through the plasma reactor, so that the visibility in the emergency channel is improved, and rapid evacuation and escape of personnel are facilitated.

Description

Technical Field

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

[0002] A tunnel is an underground passage artificially excavated for transportation, other purposes, etc. Among them, the emergency passages of the tunnel are an important part of the tunnel safety design. Their existence is to quickly evacuate people and vehicles in case of emergencies such as fires, traffic accidents or tunnel structure problems, and provide a way for rescue personnel to enter the tunnel. The existing emergency passages of the tunnel have basically met the needs of emergency evacuation. However, in the actual use process, there are still certain defects. For example, the existing emergency passages of the tunnel are not equipped with emergency smoke removal equipment. When an accident occurs, the thick smoke generated will enter the emergency passage, resulting in a decrease in visibility in the emergency passage and affecting the efficiency of personnel evacuation and escape. Content of the Utility Model

[0003] The utility model provides a tunnel emergency smoke removal device to solve the problem mentioned in the above background technique that when thick smoke enters the emergency passage, it leads to a decrease in visibility and affects the efficiency of personnel evacuation and escape.

[0004] The technical solution adopted by the utility model is: a tunnel emergency smoke removal device, including an outer shell body. A plasma reactor is installed inside the outer shell body. The plasma reactor divides the internal cavity of the outer shell body into two cavities. One cavity is an air inlet cavity, and the other cavity is an air outlet cavity. A fan is installed in the air outlet cavity, and the air outlet of the fan is communicated with the outside air for discharging the treated flue gas outwards.

[0005] Preferably, an air outlet grille is installed at a position close to the air outlet of the fan in the air outlet cavity. The air outlet grille is installed on the surface of the outer shell body, and an air inlet grille is installed at a position on the surface of the outer shell body close to the air inlet cavity.

[0006] Preferably, the plasma reactor includes two negative electrode mounting plates. A plurality of negative electrode round tubes are arranged in a matrix between the two negative electrode mounting plates. It also includes electrode mounting brackets located on both sides of the two negative electrode mounting plates. A plurality of high-voltage electrodes are arranged in a matrix between the two electrode mounting brackets. Each high-voltage electrode passes through the center of the negative electrode round tube, and the electrode mounting bracket is connected to the negative electrode mounting plate through an insulating ceramic block; the central channel of each negative electrode round tube is consistent with the flowing direction of the flue gas entering the outer shell body.

[0007] Preferably, the outer shell body is made of stainless steel, and a power supply box is installed on its side.

[0008] Preferably, a plurality of fixing ears are installed at both sides of the outer shell body.

[0009] Preferably, there are multiple fans, and the multiple fans are coaxially and equidistantly installed in the air outlet cavity.

[0010] Preferably, a transition fillet is provided at one end of the outer shell close to the air inlet cavity, and mounting strips with a U-shaped cross-section are installed at the upper and lower positions of the end of the outer shell far from the transition fillet.

[0011] Preferably, rectangular holes are provided at the positions of the outer shell close to the fan and the plasma reactor, and covers are installed outside the rectangular holes.

[0012] The beneficial effects of the present utility model are as follows:

[0013] The present utility model has a simple design structure and is convenient to use. It can quickly suck the smoke and dust in the tunnel emergency passage into the interior of the outer shell by starting the fan, and use the plasma reactor to absorb and process the smoke and dust, and then discharge it into the passage to improve the visibility in the emergency passage and facilitate the rapid evacuation and escape of personnel. Description of the Drawings

[0014] Figure 1 is a perspective view of the present utility model;

[0015] Figure 2 is an exploded view of the present utility model;

[0016] Figure 3 is a perspective view of the plasma reactor of the present utility model;

[0017] Figure 4 is a sectional view of the plasma reactor of the present utility model;

[0018] Figure 5 is an exploded view of the outer shell of the present utility model.

[0019] Wherein: 1. Outer shell; 101. Transition fillet; 102. Cover; 103. Mounting strip; 2. Fixed ear; 3. Power supply box; 4. Fan; 5. Plasma reactor; 501. Insulating ceramic block; 502. Electrode mounting bracket; 503. High-voltage electrode; 504. Negative electrode mounting plate; 505. Negative electrode round tube; 6. Air inlet grille; 7. Air outlet grille. Detailed Embodiments

[0020] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0021] As shown in the figure, a tunnel emergency smoke removal device includes a housing 1. Inside the housing 1, a plasma reactor 5 is installed. The plasma reactor 5 divides the internal cavity of the housing 1 into two cavities. One cavity is the air inlet cavity, and the other cavity is the air outlet cavity. A fan 4 is installed in the air outlet cavity. The air outlet of the fan 4 is connected to the outside air and is used to discharge the treated smoke outwards. The fan 4 serves as the power source for the smoke and dust to enter the housing 1. After startup, a negative pressure is formed inside the housing 1, and the smoke and dust in the channel can enter the housing 1, and then be discharged outwards after being absorbed and treated by the plasma reactor 5, realizing the process of smoke and dust treatment.

[0022] Specifically, an air outlet grille 7 is installed at a position near the air outlet of the fan 4 in the air outlet cavity. The air outlet grille 7 is installed on the surface of the housing 1. An air inlet grille 6 is installed at a position on the surface of the housing 1 near the air inlet cavity. The air inlet grille 6 and the air outlet grille 7 are respectively used to achieve the effects of air inlet and air outlet, and can also prevent large-sized sundries (such as paper, plastic tapes, etc.) from entering the housing 1.

[0023] Specifically, the plasma reactor 5 includes two negative electrode mounting plates 504. A plurality of negative electrode round tubes 505 are installed in a matrix arrangement between the two negative electrode mounting plates 504. It also includes electrode mounting brackets 502 located on both sides of the two negative electrode mounting plates 504. A plurality of high-voltage electrodes 503 are installed in a matrix arrangement between the two electrode mounting brackets 502. Each high-voltage electrode 503 passes through the center of the negative electrode round tube 505, and the electrode mounting bracket 502 is connected to the negative electrode mounting plate 504 through an insulating ceramic block 501; the central channel of each negative electrode round tube 505 is consistent with the flow direction of the smoke entering the housing 1. The plasma reactor 5 is connected to the power supply box 3, and the plasma generated by it can absorb the thick smoke particles, realizing the effect of efficiently treating smoke and dust; the principle of generating this plasma belongs to the conventional design in the prior art and will not be elaborated here.

[0024] Specifically, the housing 1 is made of stainless steel, and a power supply box 3 is installed on its side. The stainless steel housing can avoid the problem of self-combustion after absorbing high-temperature thick smoke particles, which is beneficial to extending the service life of the smoke removal device; the power supply box 3 is used to connect external power equipment to provide power for the smoke removal device.

[0025] Specifically, a plurality of fixing ears 2 are installed at both sides of the housing 1. In this example, the number of fixing ears 2 on each side is two. The purpose is to facilitate fixing the housing 1 to a specified position by using the fixing ears 2, which is convenient for installation.

[0026] Specifically, there are multiple fans 4. The multiple fans 4 are coaxially and equally spacedly installed in the air outlet cavity. In this example, the number of fans 4 is four, and the number of fans 4 can also be increased or decreased according to the overall width of the smoke removal device.

[0027] Specifically, a transition fillet 101 is provided at one end of the outer housing 1 close to the air inlet cavity. The purpose of setting the transition fillet 101 is to facilitate the movement of the soot into the interior of the outer housing 1 from the position of the air inlet grille 6. By using the structural design of the transition fillet 101, the soot can quickly move towards the center of the interior of the outer housing 1, accelerating the speed of smoke removal. At the upper and lower positions of one end of the outer housing 1 away from the transition fillet 101, mounting strips 103 with a U-shaped cross-section are installed. This is set so that in addition to fixing the device by means of the fixing ears 2, the outer housing 1 can also be installed and fixed by different fixing methods. An installation channel is formed between the upper and lower mounting strips 103, and the outer housing 1 can be assembled in a manner similar to a slide rail.

[0028] Specifically, rectangular holes are provided at the positions of the outer housing 1 close to the fan 4 and the plasma reactor 5. Covers 102 are installed outside the rectangular holes. The rectangular holes are for facilitating the installation of the fan 4 and the plasma reactor 5 into the interior of the outer housing 1, and then the fan 4 and the plasma reactor 5 are sealed and protected by the covers 102.

[0029] When this tunnel emergency smoke removal device is in use, the emergency smoke removal device can be installed at a specified position by using the fixing ears 2 or the mounting strip 103 structure at the end of the outer housing 1. During operation, the fan 4 is started, and the fan 4 extracts the air inside the outer housing 1 outwards, creating a negative pressure inside the outer housing 1, causing the thick smoke in the emergency passage to enter the outer housing 1, and then pass through the center of the negative electrode circular tube 505. During the process of passing through the inside of the negative electrode circular tube 505, the soot can be absorbed and processed by the plasma generated inside. The processed air is led outwards through the fan 4 and the air outlet grille 7, completing the smoke removal process.

[0030] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A tunnel emergency smoke removal device, characterized in that: It includes a housing (1), inside which a plasma reactor (5) is installed. The plasma reactor (5) divides the internal cavity of the housing (1) into two cavities. One cavity is the air inlet cavity, and the other cavity is the air outlet cavity. A fan (4) is installed in the air outlet cavity, and the air outlet of the fan (4) is communicated with the outside air to discharge the treated flue gas outwards.

2. The tunnel emergency smoke removal device according to claim 1, wherein: An air outlet grille (7) is installed at a position close to the air outlet of the fan (4) in the air outlet cavity. The air outlet grille (7) is installed on the surface of the housing (1), and an air inlet grille (6) is installed at a position on the surface of the housing (1) close to the air inlet cavity.

3. The tunnel emergency smoke removal device according to claim 1, wherein: The plasma reactor (5) includes two negative electrode mounting plates (504). A plurality of negative electrode round tubes (505) are arranged in a matrix between the two negative electrode mounting plates (504). It also includes electrode mounting brackets (502) located on both sides of the two negative electrode mounting plates (504). A plurality of high-voltage electrodes (503) are arranged in a matrix between the two electrode mounting brackets (502). Each high-voltage electrode (503) passes through the center of the negative electrode round tube (505), and the electrode mounting bracket (502) is connected to the negative electrode mounting plate (504) through an insulating ceramic block (501); the central channel of each negative electrode round tube (505) is consistent with the flowing direction of the flue gas entering the housing (1).

4. A tunnel emergency smoke removal device according to claim 1, characterized in that: The housing (1) is made of stainless steel, and a power supply box (3) is installed on its side.

5. The tunnel emergency smoke removal device according to claim 1, characterized in that: A plurality of fixing ears (2) are installed at both sides of the housing (1).

6. The tunnel emergency smoke removal device according to claim 1, wherein: The number of the fans (4) is multiple, and the multiple fans (4) are coaxially and equally spaced and installed in the air outlet cavity.

7. The tunnel emergency smoke removal device according to claim 1, wherein: One end of the housing (1) close to the air inlet cavity is provided with a transition fillet (101), and mounting strips (103) with a U-shaped cross-section are installed at the upper and lower positions of the end of the housing (1) far from the transition fillet (101).

8. The tunnel emergency smoke removal device according to claim 1, characterized in that: Rectangular holes are opened at positions of the housing (1) close to the fan (4) and the plasma reactor (5), and covers (102) are installed outside the rectangular holes.

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