A tunnel ventilation integrated air purification device

Abstract

The utility model discloses a tunnel ventilation integrated air purification device, including air intake device, purification device and return air device, and air intake device includes the fan of multiple of setting in proper order along the length direction of tunnel, and the common connection of fan has the air inlet pipeline, and the purification device sets up on the lateral wall of tunnel, and the inside of purification device is provided with the purification chamber, and is provided with air purification subassembly in the purification chamber, and the air outlet is connected with the air supply device, and the return air device includes a plurality of return air piece, and a plurality of return air piece sets up in proper order on the lateral wall of tunnel along the length direction of tunnel. The utility model provides a tunnel ventilation integrated air purification device, and fan, air inlet pipeline, purification device, air supply device, air outlet pipeline and return air piece are communicated in proper order and form the device that carries out ventilation and purification to the air in tunnel, and in the use process, the circulation flow of air suction, purification, reflux is formed, realizes the dynamic flow and purification of the air in tunnel.

Description

Technical Field

[0001] This utility model relates to the field of tunnel air purification technology, and in particular to an integrated air purification device for tunnel ventilation. Background Technology

[0002] With the rapid pace of urbanization, cities are expanding, and the number of people and motor vehicles is constantly increasing, leading to an explosive growth in transportation demand. To alleviate surface traffic pressure and optimize road network structure, bridge and road construction is booming, and tunnels, as crucial transportation facilities crossing mountains and valleys and traversing urban core areas, are seeing their number and length increase at an alarming rate. As relatively enclosed man-made spaces, especially long, twin-bore, one-way tunnels, tunnels present challenges in terms of air exchange between the inside and outside.

[0003] Air pollutants inside tunnels mainly come from vehicle exhaust emissions and dust generated during driving. As tunnels are semi-enclosed spaces, air exchange between the inside and outside is not timely as the tunnel length increases. The presence of particulate matter and nitrogen oxides can easily lead to a decline in air quality inside the tunnel. Driving in tunnels for extended periods may cause symptoms such as dizziness, nausea, and difficulty concentrating for drivers and passengers, increasing the probability of driver errors. Furthermore, nitrogen oxides mixed with volatile organic compounds can form photochemical smog under tunnel lighting, further reducing visibility and exacerbating visual fatigue. Utility Model Content

[0004] The purpose of this invention is to provide an integrated air purification device for tunnel ventilation to address the aforementioned shortcomings in the prior art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: An integrated air purification device for tunnel ventilation includes: A suction device is installed at the top of the tunnel. The suction device includes multiple fans arranged sequentially along the length of the tunnel, and the multiple fans are connected to a common air intake pipe. A purification device is installed on the side wall of the tunnel. The purification device is provided with an air inlet and an air outlet. An air inlet pipe is connected to the air inlet. The purification device has a purification chamber inside, and an air purification component is installed inside the purification chamber. The air outlet is connected to the purification chamber and a ventilation device is connected to the air outlet. The return air device includes multiple return air components, which are sequentially arranged on the sidewall of the tunnel along the length of the tunnel. Each return air component is connected to an air outlet duct, which is connected to the air supply device.

[0006] The aforementioned integrated air purification device for tunnel ventilation includes an air inlet component, a purification component, and an air outlet component connected in sequence. The air inlet component has two air inlet channels, and each air inlet channel is equipped with an air intake fan. The air inlet is located at the end of the air inlet component and is connected to the air inlet channel.

[0007] The aforementioned integrated air purification device for tunnel ventilation includes multiple purification channels, which are arranged sequentially at intervals along the purification device, and a spiral air guide is provided inside each purification channel.

[0008] The aforementioned integrated air purification device for tunnel ventilation also includes a filter element, which is disposed between the air inlet element and the purification element for filtering the air.

[0009] The aforementioned integrated air purification device for tunnel ventilation includes a first filter body and a second filter body. The first filter body includes a first frame and a plurality of first filter plates disposed on the first frame. The first filter plates are inclined in a first direction, and a strip-shaped first air delivery port is formed between the first filter plates.

[0010] The aforementioned integrated air purification device for tunnel ventilation includes a second filter body comprising a second frame and a plurality of second filter plates disposed on the second frame. The second filter plates are inclined toward a second direction, which is opposite to the first direction. A strip-shaped second air delivery port is formed between the second filter plates and the second filter plates.

[0011] The aforementioned integrated air purification device for tunnel ventilation also includes an air guide plate, which is disposed between the second filter and the purification component to guide the air into the purification channel.

[0012] The aforementioned integrated air purification device for tunnel ventilation has an installation cavity on the air inlet component, and the first filter, the second filter, and the air guide plate are all installed inside the installation cavity.

[0013] In the above technical solution, the integrated air purification device for tunnel ventilation provided by this utility model includes an air intake device, a purification device, and a return air device. The air intake device includes multiple fans arranged sequentially along the length of the tunnel, and the fans are all connected to an air intake pipe. The purification device is installed on the side wall of the tunnel and has a purification chamber inside, in which air purification components are installed. An air supply device is connected to the air outlet. The return air device includes multiple return air components, which are arranged sequentially along the length of the tunnel on the side wall of the tunnel. Thus, the fans, air intake pipe, purification device, air supply device, air outlet pipe, and return air components are connected in sequence to ventilate and purify the air inside the tunnel. The purification system uses multiple fans to draw in polluted air (containing particulate matter, nitrogen oxides, etc.) from the tunnel and transport it to the purification unit. The purification unit then treats the air and distributes the treated air back into the tunnel through the air supply unit and multiple return air components. The released clean air creates a fresh airflow within the tunnel, diluting any remaining pollutants and providing clean breathing air for drivers and passengers. Simultaneously, the suction unit continuously draws in polluted air, creating a cycle of air intake, purification, and return. This achieves dynamic airflow and purification within the tunnel, effectively improving air quality and the driving environment. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0015] Figure 1 One of the structural schematic diagrams of the integrated air purification device for tunnel ventilation provided in this utility model embodiment; Figure 2 A second schematic diagram of the integrated air purification device for tunnel ventilation provided in this embodiment of the utility model; Figure 3 This is a schematic diagram of the installation of the suction device provided in an embodiment of the present utility model; Figure 4 This is an installation diagram of the purification device provided in an embodiment of the present utility model; Figure 5 This is a schematic diagram of the installation of the air inlet component provided in an embodiment of the present utility model.

[0016] Explanation of reference numerals in the attached figures: 1. Suction device; 11. Fan; 12. Air inlet duct; 2. Purification device; 21. Air inlet; 22. Air outlet; 23. Air intake component; 231. Air intake channel; 232. Air intake fan; 233. Mounting cavity; 24. Purification component; 241. Purification channel; 242. Air guide component; 25. Air outlet component; 26. First filter body; 261. First frame; 262. First filter plate; 263. First air delivery port; 27. Second filter body; 271. Second frame; 272. Second filter plate; 273. Second air delivery port; 28. Air guide plate; 3. Air supply device; 4. Return air component; 41. Air outlet duct; 5. Tunnel. Detailed Implementation

[0017] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0018] like Figure 1-5 As shown, this utility model provides an integrated air purification device for tunnel ventilation, including an air intake device 1, a purification device 2, and a return air device. The air intake device 1 is located at the top of the tunnel 5 and includes multiple fans 11 arranged sequentially along the length of the tunnel 5. The fans 11 are connected to an air intake pipe 12. The purification device 2 is located on the side wall of the tunnel 5 and has an air inlet 21 and an air outlet 22. The air intake pipe is connected to the air inlet 21. The purification device 2 has a purification chamber inside and an air purification component is installed inside the purification chamber. The air outlet 22 is connected to the purification chamber and is connected to an air supply device 3. The return air device includes multiple return air components 4, which are arranged sequentially along the length of the tunnel 5 on the side wall of the tunnel 5. The return air components 4 are connected to an air outlet pipe 41, which is connected to the air supply device 3.

[0019] Specifically, the integrated air purification device 2 for tunnel ventilation includes a suction device 1, a purification device 2, and a return air device that work together. The suction device 1 is used to draw in polluted air from inside the tunnel 5. The suction device 1 includes multiple fans 11 installed at the top of the tunnel 5. The multiple fans 11 are arranged sequentially along the length of the tunnel 5. The fans 11 can be high-efficiency axial flow fans or centrifugal fans. The number of fans 11 is set according to the length of the tunnel 5. The multiple fans 11 can capture polluted air in the entrance, middle, and exit sections of the tunnel 5. An air intake pipe 12 is installed at the top of the tunnel 5. The air intake pipe 12 is arranged along the length of the tunnel 5. Each fan 11 is connected to the air intake pipe, and the drawn air can be transported to the purification device 2 through the air intake pipe.

[0020] The purification device 2 is fixed to the side wall of tunnel 5. An installation space for the purification device 2 can be pre-set on the side wall of tunnel 5, which does not occupy the driving space at the bottom of tunnel 5 and facilitates later maintenance and repair. The purification device 2 has an air inlet 21 and an air outlet 22 at opposite ends. The air inlet 21 is used to deliver the air to be purified into the purification device 2. The purification device 2 has a purification chamber inside, and both the air outlet 22 and the air inlet 21 are connected to the purification chamber. The air inlet 21 is connected to the air intake pipe 12. An air purification component is installed inside the purification chamber. The air purification component can be configured with filters, adsorption structures, etc., according to actual needs to specifically remove pollutants such as particulate matter and nitrogen oxides. The air requiring purification is delivered to the purification chamber through the air intake pipe 12 and the air inlet 21, processed by the air purification component, and the processed air is output from the air outlet 22.

[0021] In this embodiment, the air supply device 3 and the return air device are connected to each other to deliver the purified air into the tunnel 5. The air supply device 3 is connected to the air outlet 22 of the purification device 2. The function of the air supply device 3 is to provide power for the purified clean air, ensuring that the air can be quickly delivered to the return air device to form an airflow circulation. An air delivery pipe connected to the outside can also be provided on the air supply device 3, so that the purified air and the outside air are delivered together to the return air device and dispersed into the tunnel 5 through the return air device. The return air device includes an air outlet duct 41 and multiple return air components 4. The air outlet duct 41 is connected to the air supply device 3. The multiple return air components 4 are arranged sequentially on the side wall of the tunnel 5 along the length of the tunnel 5. Each return air component 4 is connected to the air outlet duct 41. The main body of the return air component 4 is a stainless steel shell, which is flat and strip-shaped. The return air component 4 is provided with a multi-slit diffuser. A dustproof net can be provided on the return air component 4.

[0022] Thus, the fan 11, air intake duct 12, purification device 2, air supply device 3, air outlet duct 41, and return air component 4 are sequentially connected to form a device for ventilating and purifying the air inside the tunnel 5. During use, it includes the following process: The first step is the intake of polluted air: When the air quality inside tunnel 5 decreases or the traffic flow increases, multiple fans 11 of the suction device 1 start simultaneously. The fans 11, which are distributed at different positions on the top of tunnel 5, use their own suction to draw in polluted air (including particulate matter, nitrogen oxides, etc.) inside tunnel 5. This polluted air is collected by the fans 11 into a common air intake duct 12 and then transported to the interior of the purification device 2 through the air intake duct 12.

[0023] The second step is the purification of polluted air: the polluted air in the intake pipe 12 enters the internal purification chamber smoothly through the air inlet 21 of the purification device 2. Inside the purification chamber, the polluted air comes into full contact with the air purification components and is treated. After purification, the originally turbid polluted air is transformed into clean air that meets the air quality standards. Then, the clean air is discharged through the air outlet 22 of the purification device 2 and enters the air supply device 3.

[0024] The third step is clean air recirculation: the air supply device 3 is activated, applying power to the purified clean air and pushing it to the air outlet duct 41. The clean air is evenly distributed in the air outlet duct 41 and delivered to multiple return air components 4 distributed along the length of the tunnel 5. Then, the clean air is slowly and evenly released into the tunnel 5 through the return air components 4.

[0025] The integrated air purification device 2 for tunnel ventilation provided by this utility model includes an air intake device 1, a purification device 2, and a return air device. The air intake device 1 includes multiple fans 11 arranged sequentially along the length of the tunnel 5. The fans 11 are connected to an air intake pipe 12. The purification device 2 is set on the side wall of the tunnel 5. The purification device 2 has a purification chamber inside, and an air purification component is set inside the purification chamber. An air supply device 3 is connected to the air outlet 22. The return air device includes multiple return air components 4, which are arranged sequentially on the side wall of the tunnel 5 along the length of the tunnel 5. The fan 11, air intake duct 12, purification device 2, air supply device 3, air outlet duct 41, and return air component 4 are connected in sequence to form a device for ventilating and purifying the air inside the tunnel 5. During use, multiple fans 11 use their own suction to draw in polluted air (including particulate matter, nitrogen oxides, etc.) from the tunnel 5 and deliver it to the purification device 2. The purification device 2 purifies the air, and the treated air is dispersed and delivered into the tunnel 5 through the air supply device 3 and multiple return air components 4. The released clean air will form a fresh airflow in the tunnel 5, which on the one hand dilutes the small amount of pollutants remaining in the tunnel 5, and on the other hand provides clean breathing air for drivers and passengers. At the same time, in conjunction with the suction device 1, polluted air is continuously drawn in, forming a cycle of air intake, purification, and return, realizing the dynamic flow and purification of air in the tunnel 5, and effectively improving the air quality and driving environment in the tunnel 5.

[0026] In this embodiment, preferably, the purification device 2 includes an air inlet component 23, a purification component 24, and an air outlet component 25 connected in sequence. The air inlet component 23 is provided with two air inlet channels 231, and each air inlet channel 231 is provided with an air intake fan 232. An air intake plate is provided at the air intake end of the air inlet component 23, and the air inlet 21 is provided on the air intake plate and connected to the air inlet channel 231. An air intake fan 232 is provided inside each air inlet channel 231. When the air intake fan 232 is running, it can generate directional suction to accelerate the air into the purification device 2.

[0027] In this embodiment, preferably, the purification component 24 includes multiple purification channels 241, which are arranged sequentially and at intervals along the purification component 24. A spiral-shaped air guide 242 is disposed within each purification channel 241, and an air adsorption structure is disposed on the air guide 242. The air adsorption structure can be a porous activated carbon granular layer, thereby adsorbing fine particulate matter. The air guide 242 can be fixed within the purification channel 241 by a snap-fit ​​mechanism, facilitating replacement and cleaning of the air guide 242. When air flows through the channel, the air guide 242 guides the air to flow along a spiral trajectory. On the one hand, this prolongs the residence time of the air within the channel, allowing the air adsorption structure to more fully contact the air and improve the purification effect. On the other hand, the centrifugal force generated by the spiral flow can assist in separating some impurities in the air, enhancing the purification effect.

[0028] In this embodiment, preferably, a filter element is also included, which is disposed between the air inlet 23 and the purification element 24, for filtering the air. The filter element can filter out large particulate impurities (such as dust, particulate matter, etc.) in the air.

[0029] The filter element includes a first filter body 26 and a second filter body 27. The first filter body 26 includes a first frame 261 and a plurality of first filter plates 262 disposed on the first frame 261. The first filter plates 262 are inclined in a first direction, and a strip-shaped first air delivery port 263 is formed between the first filter plates 262. The first filter plates 262 can be made of galvanized steel wire mesh, with an inclination angle of 20° to 30°. The surface of the first filter plates 262 is coated with a polytetrafluoroethylene anti-stick coating. The inclined arrangement of the first filter plates 262 can increase the contact area between the first filter plates 262 and the air, thereby improving the filtration efficiency. At the same time, the strip-shaped first air delivery port 263 is naturally formed between adjacent first filter plates 262. The air that has undergone preliminary filtration can flow through these delivery ports to the subsequent structure and the air contact area, thereby improving the filtration efficiency.

[0030] The second filter body 27 is structurally similar to the first filter body 26. The second filter body 27 includes a second frame 271 and a plurality of second filter plates 272 disposed on the second frame 271. The second filter plates 272 are inclined in a second direction, which is opposite to the first direction. The second filter plates 272 are synthetic fiber filters. The filter mesh holes on the second filter plates 272 are smaller than the filter mesh holes on the first filter plates 262. A strip-shaped second air delivery port 273 is formed between the second filter plates 272 and the first air delivery port 263. The inclination direction (second direction) of the second filter plates 272 is completely opposite to that of the first filter plates 262, and the second air delivery port 273 and the first air delivery port 263 are staggered to form a cross filtration path. When air flows from the first filter body 26 into the second filter body 27, the airflow direction will change. Fine impurities that are not intercepted by the first filter plates 262 will be captured by the second filter plates 272 during the turning process, further improving the filtration effect.

[0031] In this embodiment, preferably, an air guide plate 28 is also included. The air guide plate 28 is disposed between the second filter body 27 and the purification component 24 to guide air into the purification channel 241. The air guide plate 28 is provided with guide holes, the number of which can be the same as the number of purification channels 241, and the guide holes and purification channels 241 correspond one-to-one. Thus, when air passes through the air guide plate, it is dispersed and delivered to each purification channel 241 through the guide holes.

[0032] In this embodiment, preferably, the air inlet 23 is provided with an installation cavity 233, in which the first filter 26, the second filter 27, and the air guide plate 28 are all installed. This facilitates the disassembly, cleaning, or replacement of the first filter 26 and the second filter 27, reducing maintenance difficulty. At the same time, the installation cavity 233 can protect the internal components, reducing the impact of the external environment on the filtration and guiding effect.

[0033] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. An integrated air purification device for tunnel ventilation, characterized in that, include: A suction device is installed at the top of the tunnel. The suction device includes multiple fans arranged sequentially along the length of the tunnel, and the multiple fans are connected to a common air intake pipe. A purification device is installed on the side wall of the tunnel. The purification device is provided with an air inlet and an air outlet. An air inlet pipe is connected to the air inlet. The purification device has a purification chamber inside, and an air purification component is installed inside the purification chamber. The air outlet is connected to the purification chamber and a ventilation device is connected to the air outlet. The return air device includes multiple return air components, which are sequentially arranged on the sidewall of the tunnel along the length of the tunnel. Each return air component is connected to an air outlet duct, which is connected to the air supply device.

2. The integrated air purification device for tunnel ventilation according to claim 1, characterized in that, The purification device includes an air inlet component, a purification component, and an air outlet component connected in sequence. The air inlet component is provided with two air inlet channels, and each air inlet channel is provided with an air intake fan. The air inlet is located at the end of the air inlet component and is connected to the air inlet channel.

3. The integrated air purification device for tunnel ventilation according to claim 2, characterized in that, The purification component includes multiple purification channels, which are arranged sequentially at intervals along the purification component, and a spiral air guide is provided inside each purification channel.

4. The integrated air purification device for tunnel ventilation according to claim 3, characterized in that, It also includes a filter element, which is disposed between the air inlet and the purification element, for filtering the air.

5. The integrated air purification device for tunnel ventilation according to claim 4, characterized in that, The filter element includes a first filter body and a second filter body. The first filter body includes a first frame and a plurality of first filter plates disposed on the first frame. The first filter plates are inclined in a first direction, and a strip-shaped first air delivery port is formed between the first filter plates.

6. The integrated air purification device for tunnel ventilation according to claim 5, characterized in that, The second filter body includes a second frame and a plurality of second filter plates disposed on the second frame. The second filter plates are inclined in a second direction, which is opposite to the first direction. A strip-shaped second air delivery port is formed between the second filter plates and the second filter plates.

7. The integrated air purification device for tunnel ventilation according to claim 6, characterized in that, It also includes an air guide plate, which is disposed between the second filter and the purification component to guide the air into the purification channel.

8. The integrated air purification device for tunnel ventilation according to claim 7, characterized in that, The air inlet component is provided with an installation cavity, and the first filter, the second filter and the air guide plate are all installed in the installation cavity.

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