Ventilation device for a tunnel

Abstract

The application discloses a ventilation equipment for a tunnel, which comprises a tunnel fan, a filter pipe detachably arranged at an air inlet of the tunnel fan for filtering small garbage, a venturi tube arranged at an air outlet of the tunnel fan for pressurizing air outlet and air inlet diversion and filtering large garbage, and a collecting box arranged below an air inlet of the filter pipe for collecting the filtered large garbage. In the application, the venturi tube, the filter pipe and the collecting box are arranged skillfully, which can pressurize the air outlet, improve the ventilation efficiency, form the diversion at the air inlet of the filter pipe, press the garbage at the air inlet into the collecting box, avoid the garbage flying randomly and cause the safety hidden danger, and facilitate the subsequent dismounting and replacement of the filter pipe through the pipe clamp. The collecting box is movably embedded in a bottom frame, which is easy to replace and clean the internal garbage.

Description

Technical Field

[0001] This invention relates to the field of tunnel ventilation technology, and more particularly to a ventilation device for tunnels. Background Technology

[0002] Tunnels, as a vital component of urban transportation, are experiencing rapid growth in both number and length. While providing convenient transportation, tunnels also bring numerous environmental problems, especially air quality issues. Due to the relatively enclosed space of tunnels, pollutants such as vehicle exhaust and dust are difficult to disperse, leading to deterioration of air quality inside tunnels, affecting driving safety and passenger health.

[0003] Existing tunnel ventilation systems primarily rely on fans to facilitate air convection and improve air quality within the tunnel. However, these systems generally suffer from the following problems:

[0004] Poor pollutant filtration: Traditional ventilation systems mainly rely on airflow to remove pollutants, lacking an effective filtration mechanism. However, this method causes pollutants to circulate inside and outside the tunnel, posing a significant safety hazard. Furthermore, pollutants can easily clog the tunnel fan inlet, affecting fan efficiency.

[0005] Difficulty in removing filter media: The filter components of existing equipment are usually complex in design and inconvenient to replace, resulting in long maintenance cycles, high costs, and the risk of secondary pollution during replacement. Summary of the Invention

[0006] The main objective of this invention is to provide a ventilation device for tunnels, which aims to solve the technical problems of poor pollutant filtration effect and difficulty in removing filtered materials in the prior art.

[0007] To achieve the above objectives, the present invention provides a ventilation device for tunnels, including a tunnel fan, wherein the tunnel fan is equipped with fan blades inside, and a filter pipe is detachably provided at the air inlet of the tunnel fan for filtering fine debris;

[0008] The tunnel ventilation fan is equipped with a venturi tube at the air outlet, which is used to pressurize the air outlet and divert the air at the air inlet, and filter out larger debris.

[0009] A collection box is located below the air inlet of the filter pipe to collect larger pieces of waste that have been filtered out.

[0010] Furthermore, the venturi tube is provided with a throat, and the throat is connected to the collection box through a diversion pipe.

[0011] Furthermore, one end of the filter tube is detachably connected to the air inlet of the tunnel fan via a pipe clamp; the other end is detachably clamped to the base frame via a pipe base and a pipe clamp.

[0012] Furthermore, the tube base is fixed to the base frame by bolts;

[0013] The pipe clamp is mounted above the pipe base in a height-adjustable manner via an adjusting screw and screw seat;

[0014] Both the tube base and the tube clamp are provided with clamping ports that are compatible with the filter tube;

[0015] The filter tube can be quickly disassembled and assembled using a tube clamp for lifting and lowering.

[0016] Furthermore, an inclined fixed filter plate is provided below the inlet of the filter tube;

[0017] The collection box is adapted to the fixed filter plate and can be pulled out and embedded below the fixed filter plate;

[0018] The collection box has a through hole on its side wall, and the diversion pipe communicates with the inside of the collection box through the through hole. The diversion pipe is fixed to the base frame by a pipe bracket.

[0019] Furthermore, the inlet of the filter tube is angled, with an angle α of 110 degrees to 160 degrees;

[0020] The filter tube inlet is equipped with a suitable tube filter plate;

[0021] The fixed filter plate is installed directly below the tube filter plate.

[0022] Furthermore, the bottom end of the adjusting screw is rotatably mounted on the pipe clamp, the middle part is threaded onto the screw seat, and the top end is provided with an adjusting handle;

[0023] The screw seat is fixed to the base frame by bolts;

[0024] The bottom end of the pipe clamp is provided with at least one limiting post, and the pipe base is provided with a limiting hole adapted to the limiting post. When the pipe clamp is lowered and clamped, the limiting post can be embedded in the limiting hole.

[0025] Furthermore, the air inlet and outlet of the tunnel fan are both equipped with fan filter plates, and the filter hole diameter of the fan filter plate is smaller than that of the filter hole diameter of the pipe filter plate.

[0026] Furthermore, the bottom of the base frame is provided with an L-shaped mounting bracket, and the top of the L-shaped mounting bracket is provided with a fixing plate;

[0027] Both the tunnel ventilation fan and the venturi tube are equipped with a straight mounting bracket, and the top of the straight mounting bracket is equipped with a fixing plate.

[0028] Furthermore, the pipe base and the fixed filter plate are fixed to the base frame with bolts;

[0029] The screw seat is provided with ribs on both the upper and lower sides;

[0030] The tube base is provided with a rib plate below it.

[0031] The beneficial effects of this invention are reflected in:

[0032] In this invention, the ingenious arrangement of the venturi tube, filter tube, and collection box can, on the one hand, increase the pressure at the air outlet and improve the air exchange efficiency, and on the other hand, create a diversion at the inlet of the filter tube, pressing the garbage at the inlet into the collection box to avoid it flying around and causing safety hazards.

[0033] Meanwhile, smaller waste is filtered inside the filter tube, which is held in place by a tube clamp for easy disassembly and replacement. Larger waste is collected in the collection box, which is movably embedded in the base frame for easy replacement and waste removal. Attached Figure Description

[0034] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0035] Figure 2 This is a front view of the present invention;

[0036] Figure 3 This is an exploded view of the filtration mechanism of the present invention;

[0037] Figure 4 This is a schematic diagram of the filtration mechanism of the present invention;

[0038] Figure 5 This is a schematic diagram of the rear structure of the filter mechanism of the present invention;

[0039] Figure 6 This is a left view of the filtering mechanism of the present invention;

[0040] Figure 7 This is a right view of the filtering mechanism of the present invention.

[0041] Explanation of reference numerals in the attached figures:

[0042] 1. Tunnel fan; 2. Venturi tube; 2a. Pipe throat; 3. Filter tube; 4. Pipe base; 5. Pipe clamp; 6. Adjusting screw; 7. Screw seat; 8. Adjusting handle; 9. Base frame; 10. L-shaped mounting bracket; 11. Straight mounting bracket; 12. Diverter pipe; 13. Fixing plate; 14. Collection box; 15. Pipe filter plate; 16. Fixed filter plate; 17. Pipe support; 18. Fan filter plate; 19. Fan blade. Detailed Implementation

[0043] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0044] It should be noted that if the embodiments of the present invention involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0045] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the meaning of "and / or" throughout the text includes three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied. Furthermore, "multiple" refers to two or more. Moreover, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent.

[0046] See Figures 1 to 7 As shown, the present invention provides a ventilation device for tunnels, including a tunnel fan 1, wherein the tunnel fan 1 is equipped with fan blades 19 inside, and a filter pipe 3 is detachably provided at the air inlet of the tunnel fan 1 for filtering fine debris.

[0047] The tunnel ventilation fan 1 is equipped with a venturi tube 2 at the air outlet, which is used to pressurize the air outlet and divert the air at the air inlet, and filter larger debris.

[0048] A collection box 14 is provided below the air inlet of the filter pipe 3 to collect larger waste that has been filtered out.

[0049] Working principle

[0050] Tunnel ventilation fans are used for ventilation in tunnels. Filter plates are installed at both the inlet and outlet of the tunnel ventilation fans to filter out fine particles.

[0051] The entrance of the tunnel ventilation fan is fitted with a filter pipe via pipe clamps, and the inlet end of the filter pipe is equipped with a filter plate for filtering larger substances.

[0052] A collection box is located below the filter tube to collect larger substances that have been filtered out.

[0053] The tunnel ventilation fan is equipped with a venturi tube at its outlet. The venturi tube throat is connected to the collection box through a diversion pipe. On the one hand, it increases the pressure at the air outlet to improve the ventilation efficiency. On the other hand, the negative pressure at the throat creates a diversion above the collection box, pressing the garbage at the filter plate and the opening of the collection box into the bottom of the collection box, preventing garbage from flying around and causing safety hazards.

[0054] The inlet end of the filter pipe is equipped with a pipe filter plate, and the inlet end of the tunnel fan is equipped with a fan filter plate. The aperture of the fan filter plate is smaller than that of the pipe filter plate, which is used to filter smaller substances such as sand and dust into the filter pipe.

[0055] The filter tube is easily detached and fixed to the base frame, facilitating subsequent replacement of the filter tube.

[0056] In some embodiments, see Figure 2 As shown, the Venturi tube 2 is provided with a throat 2a, which is connected to the collection box 14 through a diverter 12. According to the Venturi effect, the internal diameter of the throat is small, the gas velocity is large, and the pressure is low, so airflow will be replenished from the outside.

[0057] Airflow is supplied through a split pipe that connects to the bottom of the filter plate, allowing the airflow to be split at the filter plate. This means that part of the airflow enters from the filter plate and part enters from the collection box.

[0058] In some embodiments, see Figures 1 to 3 As shown, one end of the filter pipe 3 is detachably connected to the air inlet of the tunnel fan 1 via a pipe clamp; the other end is detachably clamped to the base frame 9 via a pipe base 4 and a pipe clamp 5.

[0059] In some embodiments, see Figures 3 to 7 As shown, the tube base 4 is fixed to the base frame 9 by bolts;

[0060] The pipe clamp 5 is mounted above the pipe base 4 in a height-adjustable manner via the adjusting screw 6 and screw seat 7.

[0061] Both the tube base 4 and the tube clamp 5 are provided with clamping ports that are compatible with the filter tube 3.

[0062] The filter tube 3 can be quickly disassembled and assembled by lifting and lowering the tube clamp 5.

[0063] In some embodiments, see Figure 2 and 4As shown, an inclined fixed filter plate 16 is provided below the inlet of the filter tube 3;

[0064] The collection box 14 is adapted to the fixed filter plate 16 and can be pulled out and embedded below the fixed filter plate 16;

[0065] The collection box 14 has a through hole on its side wall, and the diversion pipe 12 communicates with the inside of the collection box 14 through the through hole. The diversion pipe 12 is fixed to the base frame 9 by the pipe bracket 17.

[0066] In some embodiments, see Figure 2 As shown, the inlet of the filter pipe 3 is set at an angle, with an angle α of 110 degrees to 160 degrees; the angled setting facilitates the falling of garbage at the filter plate and also facilitates the formation of diversion, making it easier for the garbage to enter the collection box and for the garbage at the filter plate to be pressed into the collection box.

[0067] The filter tube 3 is equipped with a suitable tube filter plate 15 at its inlet.

[0068] The fixed filter plate 16 is installed directly below the tube filter plate 15.

[0069] In some embodiments, see Figure 3 and 4 As shown, the bottom end of the adjusting screw 6 is rotatably mounted on the pipe clamp 5, the middle part is threaded onto the screw seat 7, and the top end is provided with an adjusting handle 8;

[0070] The screw seat 7 is fixed to the base frame 9 by bolts;

[0071] The bottom end of the pipe clamp 5 is provided with at least one limiting post, and the pipe base 4 is provided with a limiting hole that is adapted to the limiting post. When the pipe clamp 5 is lowered and clamped, the limiting post can be embedded in the limiting hole, thus avoiding deformation of the pipe clamp or unstable clamping.

[0072] In some embodiments, see Figure 5 As shown, the air inlet and outlet of the tunnel fan 1 are both equipped with fan filter plates 18, and the filter hole diameter of the fan filter plate 18 is smaller than that of the filter hole diameter of the tube filter plate 15; in this way, particulate matter or smaller garbage can be filtered into the filter tube.

[0073] In some embodiments, see Figure 6 As shown in Figure 7, the bottom of the base frame 9 is provided with an L-shaped mounting bracket 10, and the top of the L-shaped mounting bracket 10 is provided with a fixing plate 13;

[0074] Both the tunnel ventilation fan 1 and the venturi tube 2 are equipped with a straight mounting bracket 11, and the top of the straight mounting bracket 11 is equipped with a fixing plate 13.

[0075] In some embodiments, see Figure 6As shown in Figure 7, the tube base 4 and the fixed filter plate 16 are fixed to the base frame 9 by bolts;

[0076] The screw seat 7 is provided with ribs on both the upper and lower sides;

[0077] The tube base 4 is provided with a rib plate below it.

[0078] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. 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 ventilation device for tunnels, comprising a tunnel fan (1), wherein the tunnel fan (1) is internally equipped with fan blades (19), characterized in that... The tunnel ventilation fan (1) is equipped with a detachable filter pipe (3) at the air inlet for filtering fine debris; The tunnel ventilation fan (1) is equipped with a venturi tube (2) at the air outlet, which is used to pressurize the air outlet and divert the air at the air inlet to filter larger garbage. The Venturi tube (2) is provided with a throat (2a), and the throat (2a) is connected to the collection box (14) through a diversion pipe (12); A collection box (14) is provided below the air inlet of the filter tube (3) for collecting larger waste filtered out; The filter tube (3) has an inclined fixed filter plate (16) below the inlet. The collection box (14) is adapted to the fixed filter plate (16) and can be pulled out and embedded below the fixed filter plate (16); The collection box (14) has a through hole on its side wall. The diversion pipe (12) is connected to the inside of the collection box (14) through the through hole. The diversion pipe (12) is fixed to the base frame (9) by the pipe rack (17). The filter tube (3) is set at an angle at the inlet, with an angle α of 110 degrees to 160 degrees; The filter tube (3) is fitted with a suitable tube filter plate (15) at its inlet. The fixed filter plate (16) is installed directly below the tube filter plate (15).

2. The ventilation device for tunnels as described in claim 1, characterized in that, One end of the filter tube (3) is detachably connected to the air inlet of the tunnel fan (1) via a pipe clamp; the other end is detachably clamped to the base frame (9) via a pipe base (4) and a pipe clamp (5).

3. A ventilation device for tunnels as described in claim 2, characterized in that, The tube base (4) is fixed to the base frame (9) by bolts; The pipe clamp (5) is mounted above the pipe base (4) in a height-adjustable manner via the adjusting screw (6) and screw seat (7); The tube base (4) and tube clamp (5) are both provided with clamping ports that are compatible with the filter tube (3); The filter tube (3) can be quickly disassembled and assembled by lifting and lowering the tube clamp (5).

4. A ventilation device for tunnels as described in claim 3, characterized in that, The bottom end of the adjusting screw (6) is rotatably mounted on the pipe clamp (5), the middle part is threaded onto the screw seat (7), and the top end is provided with an adjusting handle (8). The screw seat (7) is fixed to the base frame (9) by bolts; The bottom end of the pipe clamp (5) is provided with at least one limiting post, and the pipe base (4) is provided with a limiting hole that is adapted to the limiting post. When the pipe clamp (5) is lowered and clamped, the limiting post can be embedded in the limiting hole.

5. A ventilation device for tunnels as described in claim 2, characterized in that, The tunnel fan (1) is equipped with a fan filter plate (18) at both the air inlet and the air outlet. The filter hole diameter of the fan filter plate (18) is smaller than that of the filter hole diameter of the pipe filter plate (15).

6. A ventilation device for tunnels as described in claim 2, characterized in that, The base frame (9) is provided with an L-shaped mounting bracket (10) at the bottom, and a fixing plate (13) is provided at the top of the L-shaped mounting bracket (10). The tunnel fan (1) and the venturi tube (2) are both equipped with a straight mounting bracket (11), and the top of the straight mounting bracket (11) is equipped with a fixing plate (13).

7. A ventilation device for tunnels as described in claim 3, characterized in that, The tube base (4) and the fixed filter plate (16) are fixed to the base frame (9) by bolts; The screw seat (7) is provided with ribs on both the upper and lower sides; The tube base (4) is provided with a rib plate below it.

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