Ventilation device for tunnel

Abstract

The utility model discloses a ventilation device for a tunnel, which comprises a shell, a first side wall and a second side wall, which face each other, of the shell are respectively provided with an air inlet and an air outlet; the air inlet part is mounted on the air inlet and detachably connected with the inner wall of the construction area of the tunnel so as to allow polluted airflow in the construction area to pass through; the filtering part is mounted in the shell and is close to the air inlet, and the filtering part is communicated with the air inlet part and is configured to receive and filter the polluted airflow from the air inlet part; and the power part is installed in the shell and close to the exhaust outlet, the power part communicates with the filtering part and is constructed to suck polluted airflow in the construction area to flow into the filtering part through the air inlet part, and the purified airflow is exhausted out of the tunnel through the exhaust outlet.

Description

Technical Field

[0001] At least one embodiment of this utility model relates to the technical field of ventilation equipment for tunnel construction, and specifically to a ventilation device for tunnels. Background Technology

[0002] During tunnel construction, the large amounts of polluting gases and particulate matter generated severely affect the smooth and effective progress of construction and endanger the health of workers. As construction progresses, the tunnel's ventilation system becomes a crucial device for ensuring the safety and health of workers and guaranteeing the smooth progress of the project.

[0003] Existing ventilation devices for tunnels are mostly designed for dilution at the working face during construction operations. Pollutants are discharged along the tunnel and shafts, resulting in long pollutant removal times. During the dilution process, a considerable portion of the dust-laden, contaminated airflow is carried out of the working face by the ventilation airflow, causing the contaminated airflow to spread throughout the tunnel. This results in poor purification effects and high energy consumption, making it impossible to achieve effective local dust removal in the construction area inside the tunnel. Utility Model Content

[0004] In view of this, the present invention provides a ventilation device for tunnels to locally purify the polluted airflow in the construction area inside the tunnel, and to prevent the polluted airflow from spreading to other areas inside the tunnel.

[0005] According to an embodiment of the present invention, a ventilation device for a tunnel is provided, comprising: a housing, wherein an air inlet and an air outlet are respectively provided on a first sidewall and a second sidewall facing each other; an air inlet section, installed on the air inlet section and detachably connected to the inner wall of the construction area of ​​the tunnel to allow contaminated airflow from the construction area to pass through; a filter section, installed inside the housing and near the air inlet section, the filter section communicating with the air inlet section and configured to receive and filter contaminated airflow from the air inlet section; and a power unit, installed inside the housing and near the air outlet section, the power unit communicating with the filter section and configured to draw contaminated airflow from the construction area into the filter section through the air inlet section and discharge the purified airflow to the outside of the tunnel through the air outlet.

[0006] According to an embodiment of the present invention, the ventilation device further includes: a limiting bracket, detachably mounted on the inner wall of the tunnel, configured to allow the air inlet to extend radially in order to restrict the movement of the air inlet.

[0007] According to an embodiment of the present invention, the limiting bracket includes: a generally U-shaped frame with two mounting holes spaced apart at the bottom in the lateral direction, one side of the frame opening allowing the air inlet to extend in; and an adhesive block, the first side of the adhesive block being fitted with adhesive for bonding to the inner wall of the tunnel, and the second side of the adhesive block opposite to the first side having two inserts respectively adapted to the two mounting holes, so that the adhesive block is detachably connected to the frame.

[0008] According to an embodiment of the present invention, the air inlet includes at least one air inlet pipe installed on the air inlet. Each air inlet pipe is made of a flexible material and is capable of rotating 90° relative to the first sidewall of the housing toward the two sides adjacent to the first sidewall.

[0009] According to an embodiment of the present invention, each of the air inlet pipes includes multiple pipe segments that are slidably connected to each other to adjust the length of the air inlet pipe.

[0010] According to an embodiment of the present invention, each of the air inlet pipes is provided with a flow regulating valve near the air inlet, which is suitable for controlling the airflow rate delivered by the air inlet pipe to the filter section; and / or, each of the air inlet pipes is made of a flame-retardant and high-pressure resistant material.

[0011] According to an embodiment of the present invention, the filter section includes: a first filter extending in a vertical plane, wherein the sidewall of the first filter extending in the circumferential direction abuts against the inner side of the housing, and is adapted to receive and filter contaminated airflow from the air inlet; and a second filter extending in a vertical plane, wherein the second filter covers the air outlet side of the first filter, and is adapted to receive and further filter the airflow filtered by the first filter.

[0012] According to an embodiment of the present invention, the first filter includes: a housing extending in a vertical plane, the outer wall of the housing abutting against the inner side of the shell; and at least one first filter screen, wherein a plurality of the first filter screens are sequentially installed inside the housing in a vertical direction.

[0013] According to an embodiment of the present invention, the second filter includes a plurality of generally conical mesh bags, which are sequentially connected to each other in a vertical direction and installed on the air outlet side of the first filter, and each mesh bag is provided with a second filter screen inside.

[0014] According to an embodiment of the present invention, the ventilation device further includes: a plurality of rollers, respectively installed at the bottom of the housing, suitable for moving the ventilation device to a working position.

[0015] According to the above embodiments of the present invention, the ventilation device for tunnels detachably installs the air inlet on the inner wall of the construction area of ​​the tunnel, and uses the power unit to draw in the polluted airflow from the construction area inside the tunnel, so that the polluted airflow flows into the filter unit through the air inlet and the purified airflow is discharged to the outside of the tunnel, thereby achieving local purification of the polluted airflow in the construction area inside the tunnel and preventing the polluted airflow from spreading to other areas inside the tunnel. Attached Figure Description

[0016] Figure 1 This is a cross-sectional view of a ventilation device for a tunnel according to an embodiment of the present invention;

[0017] Figure 2 This is a side view of a ventilation device for a tunnel according to an embodiment of the present invention;

[0018] Figure 3 This is a schematic diagram illustrating the installation of the ventilation section of a ventilation device for tunnels and the inner wall of the tunnel, according to an embodiment of this utility model; and

[0019] Figure 4 This is a plan view of the air inlet pipe of a ventilation device for a tunnel according to an embodiment of the present invention.

[0020] In the picture:

[0021] 1-Shell; 11-First sidewall; 12-Second sidewall; 13-Air inlet; 14-Exhaust outlet;

[0022] 2-Air inlet section; 21-Air inlet duct; 211-Pipe section; 212-Regulating valve;

[0023] 3-Filter section;

[0024] 31-First filter; 311-Housing housing; 312-First filter screen;

[0025] 32-Second filter; 321-Mesh bag; 322-Second filter screen;

[0026] 4-Power Unit;

[0027] 5-Inner wall;

[0028] 6-Limit bracket;

[0029] 61-Frame; 611-Mounting hole;

[0030] 62-Adhesive block; 621-First side; 622-Second side; 623-Insertion rod;

[0031] 7-Roller. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0033] According to one aspect of the inventive concept of this utility model, a ventilation device for a tunnel is provided, comprising: a housing, wherein an air inlet and an air outlet are respectively provided on a first side wall and a second side wall facing each other; an air inlet section, installed on the air inlet section and detachably connected to the inner wall of the construction area of ​​the tunnel to allow contaminated airflow from the construction area to pass through; a filter section, installed inside the housing and near the air inlet section, the filter section communicating with the air inlet section and configured to receive and filter the contaminated airflow from the air inlet section; and a power unit, installed inside the housing and near the air outlet section, the power unit communicating with the filter section and configured to draw in the contaminated airflow from the construction area through the air inlet section into the filter section, and discharge the purified airflow to the outside of the tunnel through the air outlet.

[0034] Figure 1 This is a cross-sectional view of a ventilation device for a tunnel according to an embodiment of the present invention; Figure 2 This is a side view of a ventilation device for a tunnel according to an embodiment of the present invention.

[0035] According to an exemplary embodiment of the present invention, please refer to Figures 1-2 A ventilation device for tunnels is provided, comprising a housing 1, an air inlet 2, a filter 3, and a power unit 4. An air inlet 13 and an air outlet 14 are respectively provided on a first sidewall 11 and a second sidewall 12 facing each other of the housing 1. The air inlet 2 is mounted on the air inlet 13 and detachably connected to the inner wall 5 of the tunnel's construction area to allow contaminated airflow from the construction area to pass through. The filter 3 is installed inside the housing 1 near the air inlet 13, communicating with the air inlet 2, and is configured to receive and filter the contaminated airflow from the air inlet 2. The power unit 4 is installed inside the housing 1 near the air outlet 14, communicating with the filter 3, and is configured to draw in contaminated airflow from the construction area through the air inlet 2 into the filter 3, and discharge the purified airflow to the outside of the tunnel through the air outlet 14.

[0036] In this embodiment, by detachably installing the air inlet 2 on the inner wall 5 of the tunnel construction area, and using the power unit 4 to draw in the polluted airflow from the construction area inside the tunnel, the polluted airflow flows into the filter unit 3 through the air inlet 2, and the purified airflow is discharged to the outside of the tunnel, so as to achieve local purification of the polluted airflow in the construction area inside the tunnel and prevent the polluted airflow from being dispersed to other areas inside the tunnel.

[0037] Compared with the existing technology that uses ventilation and dilution at the tunnel face for purification during construction operations, the ventilation device in this embodiment avoids the formation and diffusion of a large amount of contaminated airflow inside the tunnel.

[0038] It should be noted that in this embodiment, the power unit 4 is powered by a power source. The power source is connected to the power interface of the power unit 4 to control its start and stop operation. The power unit 4 can be a suction fan.

[0039] Furthermore, in this embodiment, the housing 1 can be welded from metal plates.

[0040] Figure 3 This is a schematic diagram of the installation of the ventilation section of a ventilation device for tunnels and the inner wall of the tunnel, according to an embodiment of this utility model.

[0041] In some exemplary embodiments, reference is made to Figures 1-3 The ventilation device also includes a limiting bracket 6. The limiting bracket 6 is detachably mounted on the inner wall 5 of the tunnel and is configured to allow the air intake 2 to extend radially in order to restrict the movement of the air intake 2.

[0042] In this embodiment, during tunnel construction, it is necessary to locally purify the construction area inside the tunnel. Therefore, it is necessary to install the air intake 2 near the construction area to absorb the polluted airflow from the construction area.

[0043] Furthermore, based on the above requirements, in this embodiment, a limiting bracket 6 is used to detachably install the air inlet 2 on the inner wall 5 of the tunnel construction area, so that as the construction progresses and the construction area changes, the installation position of the air inlet 2 inside the tunnel can be changed.

[0044] In some exemplary embodiments, reference is made to Figure 3 The limiting bracket 6 includes a generally U-shaped frame 61 and an adhesive block 62. The bottom of the generally U-shaped frame 61 has two mounting holes 611 spaced laterally, with one open side allowing the air inlet 2 to extend into it. The first side 621 of the adhesive block 62 is fitted with adhesive for bonding to the inner wall 5 of the tunnel. The second side 622 of the adhesive block 62, opposite to the first side 621, has two inserts 623 that respectively mate with the two mounting holes 611, allowing the adhesive block 62 to be detachably connected to the frame 61.

[0045] The above-mentioned arrangement makes it easy to disassemble the adhesive block 62 and the frame 61, so as to replace the adhesive block 62. This allows the staff to carry only a certain number of adhesive blocks 62 to change the installation position of the limiting bracket 6 inside the tunnel, thereby changing the installation position of the air intake 2 according to the change of the construction area.

[0046] In some exemplary embodiments, reference is made to Figures 1-2 The air inlet 2 includes at least one air inlet pipe 21, which is installed on the air inlet 13. Each air inlet pipe 21 is made of a flexible material and is capable of rotating 90° relative to the first sidewall 11 of the housing 1 toward the two sides adjacent to the first sidewall 11.

[0047] In this embodiment, the air inlet pipe 21 is made of a flexible material, which allows the air inlet pipe 21 to rotate 90° relative to the first side wall 11 of the housing 1 towards the two sides adjacent to the first side wall 11, so as to adjust the air intake direction of the air inlet pipe 21.

[0048] Furthermore, in this embodiment, multiple air inlet pipes 21 can be set up. By adjusting the direction of the air inlet end of each air inlet pipe 21 and through the cooperation of multiple air inlet pipes 21, multi-angle air intake of the construction area can be achieved, increasing the coverage of the ventilation device and effectively improving economic benefits.

[0049] For example, in this embodiment, such as Figure 2 As shown, the air inlet 2 includes four air inlet pipes 21. By adjusting the direction of the air inlet end of each air inlet pipe 21, an air intake area within a rotation angle of 270° around the center line of the housing 1 can be achieved. For example, Figure 1 The polluted airflow on the left side and the front and rear sides can be drawn into the filter section 3 through the air inlet 2.

[0050] Figure 4 This is a plan view of the air inlet pipe of a ventilation device for a tunnel according to an embodiment of the present invention.

[0051] In some exemplary embodiments, reference is made to Figure 4 Each air inlet duct 21 includes multiple slidably connected pipe segments 211 to adjust the length of the air inlet duct 21.

[0052] In this embodiment, the length of the air inlet pipe 21 is adjusted by adjusting the relative position between two adjacent pipe sections 211 to meet the requirement of absorbing polluted airflow at different heights in the construction area.

[0053] It should be noted that in this embodiment, the length of the air inlet pipe 21 can be adjusted from 3m to 7m.

[0054] In some exemplary embodiments, reference is made to Figure 1 Each air inlet pipe 21 is equipped with a flow regulating valve 212 near the air inlet 13, which is used to control the airflow rate delivered from the air inlet pipe 21 to the filter section 3.

[0055] In this embodiment, each air inlet pipe 21 is equipped with a flow regulating valve 212 near the air inlet 13 to adjust the airflow rate delivered by the air inlet pipe 21 to the filter section 3 according to the degree of air pollution in the construction area. This facilitates the adaptation to dust removal or ventilation work under different processes in the tunnel and avoids the waste of suction and supply air volume.

[0056] Furthermore, in this embodiment, each air inlet pipe 21 is made of flame-retardant and high-pressure resistant material, suitable for the working conditions of the construction area, to prevent the air inlet pipe 21 from spontaneously combusting or exploding.

[0057] In some exemplary embodiments, reference is made to Figure 1 The filter section 3 includes a first filter 31 and a second filter 32. The first filter 31 extends in a vertical plane, and its circumferentially extending sidewall abuts against the inner side of the housing 1, suitable for receiving and filtering contaminated airflow from the air inlet 2. The second filter 32 extends in a vertical plane and covers the air outlet side of the first filter 31, suitable for receiving and further filtering the airflow filtered by the first filter 31.

[0058] Through the above configuration, the first filter 31 and the second filter 32 achieve secondary filtration of the polluted airflow in the construction area, thereby improving the filtration level of the polluted airflow in the construction area and effectively filtering particulate matter in the polluted airflow.

[0059] In some exemplary embodiments, reference is made to Figure 1 The first filter 31 includes a housing 311 and at least one first filter screen 312. The housing 311 extends in a vertical plane, and the outer wall of the housing 311 abuts against the inner side of the housing 1. A plurality of first filter screens 312 are sequentially installed inside the housing 311 along a vertical direction.

[0060] It should be noted that in this embodiment, the first filter 31 can be a pre-filter, wherein the first filter screen 312 can be made of non-woven fabric, nylon cloth, activated carbon filter material, metal mesh, etc.

[0061] In some exemplary embodiments, reference is made to Figure 1 The second filter 32 includes a plurality of generally conical mesh bags 321, which are installed in sequence and connected to each other in the vertical direction on the air outlet side of the first filter 31, and each mesh bag 321 is provided with a second filter screen 322 inside.

[0062] It should be noted that in this embodiment, the second filter 32 can be a bag filter, wherein the second filter screen 322 can be made of industrial polyester fleece, printing felt, glass fiber cloth, etc.

[0063] In some exemplary embodiments, reference is made to Figures 1-2The ventilation device also includes multiple rollers 7. The multiple rollers 7 are respectively mounted on the bottom of the housing 1, which is suitable for moving the ventilation device to the working position.

[0064] The above-mentioned setup facilitates the movement of the ventilation device inside the tunnel, allowing for adjustments to its position within the tunnel based on changes in the construction area.

[0065] It should be noted that, in this embodiment, the roller 7 is also equipped with a locking mechanism to prevent the roller 7 from rotating, so as to lock the roller 7 after the ventilation device moves to the construction area, so as to prevent the ventilation device from moving during operation.

[0066] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of this utility model. It should be understood that the above description is only a specific embodiment of this utility model and is not intended to limit this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A ventilation device for tunnels, characterized in that, include: The housing (1) has an air inlet (13) and an air outlet (14) respectively provided on the first side wall (11) and the second side wall (12) facing each other; An air inlet (2) is installed on the air inlet (13) and is detachably connected to the inner wall (5) of the construction area of ​​the tunnel to allow contaminated airflow in the construction area to pass through; A filter section (3) is installed inside the housing (1) and near the air inlet (13). The filter section (3) communicates with the air inlet (2) and is configured to receive and filter the contaminated airflow from the air inlet (2). as well as The power unit (4) is installed inside the housing (1) and near the exhaust port (14). The power unit (4) is connected to the filter unit (3) and is configured to draw in the polluted airflow from the construction area through the air inlet (2) into the filter unit (3) and discharge the purified airflow to the outside of the tunnel through the exhaust port (14). The air inlet (2) includes a plurality of air inlet pipes (21) installed on the air inlet (13). Each air inlet pipe (21) is made of a flexible material. The air inlet pipe (21) can rotate 90° relative to the first sidewall (11) of the housing (1) toward the two sides adjacent to the first sidewall (11). Each air inlet pipe (21) includes a plurality of pipe segments (211) that are slidably connected to each other to adjust the length of the air inlet pipe (21).

2. The ventilation device for tunnels according to claim 1, characterized in that, The ventilation device also includes: A limiting bracket (6), detachably mounted on the inner wall (5) of the tunnel, is configured to allow the air intake (2) to extend radially in order to restrict the movement of the air intake (2).

3. The ventilation device for tunnels according to claim 2, characterized in that, The limiting bracket (6) includes: The U-shaped frame (61) has two mounting holes (611) spaced laterally at its bottom, with one side of the frame (61) allowing the air inlet (2) to extend into it; and An adhesive block (62) is provided with adhesive on its first side (621) for bonding to the inner wall (5) of the tunnel. The second side (622) of the adhesive block (62) opposite to the first side (621) has two inserts (623) that are adapted to the two mounting holes (611) respectively, so that the adhesive block (62) is detachably connected to the frame (61).

4. The ventilation device for tunnels according to claim 1, characterized in that, Each of the air inlet pipes (21) is provided with a flow regulating valve (212) near the air inlet (13), which is suitable for controlling the airflow rate delivered by the air inlet pipe (21) to the filter section (3); and / or, Each of the aforementioned air inlet pipes (21) is made of flame-retardant, high-pressure resistant material.

5. The ventilation device for tunnels according to claim 1, characterized in that, The filter section (3) includes: A first filter (31) extends in a vertical plane, and the circumferentially extending sidewall of the first filter (31) abuts against the inner side of the housing (1), adapted to receive and filter contaminated airflow from the air inlet (2); and The second filter (32) extends in a vertical plane and covers the outlet side of the first filter (31), and is adapted to receive and further filter the airflow filtered by the first filter (31).

6. The ventilation device for tunnels according to claim 5, characterized in that, The first filter (31) includes: An outer casing (311) extends in a vertical plane, the outer wall of the outer casing (311) abutting against the inner side of the housing (1); and At least one first filter screen (312) and a plurality of first filter screens (312) are sequentially installed in the interior of the housing (311) in a vertical direction.

7. The ventilation device for tunnels according to claim 5, characterized in that, The second filter (32) includes a plurality of conical mesh bags (321), which are installed in sequence in a vertical direction on the air outlet side of the first filter (31), and each mesh bag (321) is provided with a second filter screen (322).

8. The ventilation device for a tunnel according to any one of claims 1-7, characterized in that, The ventilation device also includes: Multiple rollers (7) are respectively installed at the bottom of the housing (1) for moving the ventilation device to the working position.

Images