Ventilation equipment for tunnel

Abstract

The ventilation equipment for the tunnel comprises a tunnel fan, fan blades are arranged in the tunnel fan, and a filter pipe is detachably arranged at an air inlet of the tunnel fan and used for filtering small garbage; a venturi tube is arranged at an air outlet of the tunnel fan and is used for pressurizing air outlet, shunting at an air inlet and filtering larger garbage; and a collecting box is arranged below the air inlet of the filter pipe and is used for collecting filtered larger garbage. According to the device, the Venturi tube, the filter tube and the collecting box are ingeniously arranged, on one hand, pressurization can be conducted at the air outlet, the air exchange efficiency can be improved, on the other hand, flow division can be formed at the inlet of the filter tube, garbage at the inlet is pressed into the collecting box, and potential safety hazards caused by random flying are avoided; meanwhile, the filter pipe is clamped through the pipe clamp, subsequent disassembly and replacement are facilitated, the collecting box is movably embedded in the bottom frame, replacement is easy, and garbage in the collecting box is easy to clean.

Description

Technical Field

[0001] The present invention relates to the technical field of tunnel ventilation, and in particular to a ventilation device for a tunnel. Background Art

[0002] As an important part of urban transportation, the number and length of tunnels are showing a rapid growth trend. While providing convenient transportation, tunnels also bring many environmental problems, especially air quality problems. Since tunnel space is relatively closed, pollutants such as vehicle exhaust and dust are difficult to diffuse, resulting in deterioration of air quality in tunnels, affecting driving safety and passenger health.

[0003] Existing tunnel ventilation systems mainly use fans to circulate air to improve the air quality in tunnels. However, these systems generally have the following problems: Poor pollutant filtering effect: Traditional ventilation systems mainly rely on air flow to carry away pollutants and lack an effective filtering mechanism. However, this method causes pollutants to circulate inside and outside the tunnel, posing a huge safety hazard. On the other hand, pollutants can easily clog the entrance of the tunnel fan, affecting the efficiency of the fan.

[0004] Difficulty in removing filtered materials: The filter components of existing equipment are usually complex in design and inconvenient to replace, resulting in long maintenance cycles and high costs, and are prone to secondary pollution during the replacement process. Summary of the invention

[0005] The main purpose of the present invention is to provide a ventilation device for tunnels, aiming to solve the technical problems of poor pollutant filtering effect and difficulty in removing filtered objects in the prior art.

[0006] To achieve the above object, the present invention provides a ventilation device for a tunnel, comprising a tunnel fan, wherein the tunnel fan is provided with fan blades, and a filter tube is detachably provided at the air inlet of the tunnel fan for filtering fine garbage; The tunnel fan outlet is equipped with a venturi tube for pressurizing the air outlet and dividing the air inlet to filter larger garbage; A collection box is provided below the air inlet of the filter tube for collecting the larger garbage filtered out.

[0007] Furthermore, the venturi tube is provided with a throat, and the throat is connected to the collection box through a shunt pipe.

[0008] Furthermore, one end of the filter tube is detachably sleeved on the air inlet of the tunnel fan through a tube clamp; the other end is detachably clamped on the base frame through a tube base and a tube clamp.

[0009] Further, the pipe base is fixed to the base frame by bolts; The pipe clamp is arranged above the pipe base in a manner that it can be raised and lowered by adjusting the screw rod and the screw rod seat; The tube base and the tube clamp are both provided with a clamping opening adapted to the filter tube; The filter tube can be quickly disassembled and assembled by lifting and lowering the tube clamp.

[0010] Furthermore, an oblique fixed filter plate is provided below the inlet of the filter tube; The collecting box is adapted to the fixed filter plate and can be pulled out and embedded under the fixed filter plate; The side wall of the collecting box is provided with a through hole, the shunt pipe is communicated with the inside of the collecting box through the through hole, and the shunt pipe is fixed on the base frame through a pipe rack.

[0011] Furthermore, the inlet of the filter tube is arranged obliquely, and the inclination α is 110 degrees to 160 degrees; An adapted tube filter plate is installed at the inlet of the filter tube; The fixed filter plate is installed directly below the tube filter plate.

[0012] Furthermore, the bottom end of the adjusting screw is rotatably mounted on the pipe clamp, the middle part is mounted on the screw seat through threads, and an adjusting handle is provided at the top end; The screw seat is fixed to the base frame by bolts; At least one limiting column is provided at the bottom end of the pipe clamp, and a limiting hole adapted to the limiting column is provided on the pipe base. When the pipe clamp is lowered and clamped, the limiting column can be embedded in the limiting hole.

[0013] 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 the filter hole diameter of the tube filter plate.

[0014] Furthermore, an L-shaped mounting frame is provided at the bottom of the base frame, and a fixing plate is provided at the top of the L-shaped mounting frame; The tunnel fan and the venturi tube are both provided with a straight mounting frame, and the top of the straight mounting frame is provided with a fixing plate.

[0015] Furthermore, the bottom pipe seat and the fixed filter plate are fixed to the base frame by bolts; The screw seat is provided with ribs on both the upper and lower sides; A rib plate is arranged below the bottom tube seat.

[0016] The beneficial effects of the present invention are embodied in: In the present invention, the ingenious arrangement of the venturi tube, the filter tube and the collection box can, on the one hand, increase the pressure at the air outlet to improve the ventilation efficiency, and on the other hand, form a diversion at the inlet of the filter tube to press the garbage at the inlet into the collection box to avoid flying around and causing safety hazards; At the same time, smaller garbage is filtered in the filter tube, and the filter tube is clamped by a tube clamp, which is convenient for subsequent disassembly and replacement. Larger garbage is collected in a collection box, and the collection box is movably embedded in the base frame, which is easy to replace and clean the garbage. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 It is a front view of the present invention; Figure 3 It is a schematic diagram of the decomposed structure of the filtering mechanism of the present invention; Figure 4 It is a schematic diagram of the structure of the filtering mechanism of the present invention; Figure 5 It is a schematic diagram of the rear structure of the filtering mechanism of the present invention; Figure 6 It is a left side view of the filtering mechanism of the present invention; Figure 7 It is the right view of the filtering mechanism of the present invention.

[0018] Description of reference numerals: 1. Tunnel fan, 2. Venturi tube, 2a, pipe throat, 3. Filter tube, 4. Tube base, 5. Pipe clamp, 6. Adjusting screw, 7. Screw seat, 8. Adjusting handle, 9. Base frame, 10. L-shaped mounting frame, 11. Straight mounting frame, 12. Diverter pipe, 13. Fixed plate, 14. Collecting box, 15. Tube filter plate, 16. Fixed filter plate, 17. Tube rack, 18. Fan filter plate, 19. Fan blades. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. In the absence of conflict, the embodiments in this application and the features in the embodiments can be combined with each other. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0020] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0021] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing in the full text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or schemes that A and B meet at the same time. In addition, "multiple" refers to more than two. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist.

[0022] See also Figures 1 to 7 As shown, a ventilation device for a tunnel of the present invention comprises a tunnel fan 1, wherein the tunnel fan 1 is provided with a fan blade 19, and a filter tube 3 is detachably provided at the air inlet of the tunnel fan 1 for filtering fine garbage; The tunnel fan 1 is provided with a venturi tube 2 at the air outlet, which is used for pressurizing the air outlet and dividing the air at the air inlet to filter larger garbage; A collecting box 14 is provided below the air inlet of the filter tube 3 for collecting the larger garbage filtered out.

[0023] How it works Tunnel fans are used for tunnel ventilation. Fan filter plates are installed at the inlet and outlet of the tunnel fans to filter fine matter. The entrance of the tunnel fan is equipped with a filter tube through a pipe clamp, and the inlet end of the filter tube is equipped with a tube filter plate to filter larger substances; A collection box is provided below the filter tube to collect larger substances filtered; A venturi tube is installed at the outlet of the tunnel fan. The throat of the venturi tube is connected to the collection box through a diverter pipe. On the one hand, it increases the pressure at the outlet to improve the ventilation efficiency. On the other hand, the negative pressure at the throat of the tube forms a diverter above the collection box, pressing the garbage at the filter plate and the collection box mouth into the bottom of the collection box to prevent the garbage from flying around and causing safety hazards. The inlet end of the filter tube is equipped with a tube filter plate, and the inlet end of the tunnel fan is equipped with a fan filter plate, and the aperture of the fan filter plate is smaller than that of the tube filter plate, which is used to filter smaller substances such as wind and sand into the filter tube; The filter tube is fixed on the base frame in a disassembled manner, which is convenient for subsequent replacement of the filter tube.

[0024] In some embodiments, see Figure 2As shown, the venturi tube 2 is provided with a throat 2a, and the throat 2a is connected to the collecting box 14 through the shunt pipe 12. According to the Venturi effect, the inner diameter of the throat is small, the gas flow rate is large, the pressure is small, and the gas flow is supplemented from the outside; The airflow is replenished through the diversion pipe, which is connected to the bottom of the tube filter plate, so that a diversion can be formed at the tube filter plate, that is, part of the airflow at the tube filter plate enters from the tube filter plate, and part enters from the collection box.

[0025] In some embodiments, see Figures 1 to 3 As shown, one end of the filter tube 3 is detachably sleeved on the air inlet of the tunnel fan 1 through a tube clamp; the other end is detachably clamped on the base frame 9 through a tube base 4 and a tube clamp 5.

[0026] In some embodiments, see Figures 3 to 7 As shown, the pipe base 4 is fixed to the base frame 9 by bolts; The pipe clamp 5 is arranged above the pipe base 4 in a manner that it can be raised and lowered by adjusting the screw rod 6 and the screw rod seat 7; The tube base 4 and the tube clamp 5 are both provided with clamping openings adapted to the filter tube 3; The filter tube 3 can be quickly assembled and disassembled by lifting and lowering the tube clamp 5 .

[0027] In some embodiments, see Figure 2 and 4 As shown, an oblique fixed filter plate 16 is provided below the inlet of the filter tube 3; The collecting box 14 is adapted to the fixed filter plate 16 and can be pulled out and embedded under the fixed filter plate 16; The side wall of the collecting box 14 is provided with a through hole, and the shunt pipe 12 is connected with the inside of the collecting box 14 through the through hole. The shunt pipe 12 is fixed to the base frame 9 through a pipe rack 17 .

[0028] In some embodiments, see Figure 2 As shown, the inlet of the filter tube 3 is arranged obliquely, and the inclination α is 110 degrees to 160 degrees; the oblique arrangement facilitates the garbage at the tube filter plate to fall, and also facilitates the formation of diversion, facilitates the diversion into the collection box, and facilitates the diversion to press the garbage at the tube filter plate into the collection box; The inlet of the filter tube 3 is provided with an adapted tube filter plate 15; The fixed filter plate 16 is installed directly below the tube filter plate 15 .

[0029] 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 mounted on the screw seat 7 through threads, and an adjusting handle 8 is provided at the top end; The screw seat 7 is fixed to the base frame 9 by bolts; At least one limiting column is provided at the bottom end of the pipe clamp 5, and a limiting hole adapted to the limiting column is provided on the pipe base 4. When the pipe clamp 5 is lowered and clamped, the limiting column can be embedded in the limiting hole, thus preventing the pipe clamp from deformation or unstable clamping.

[0030] In some embodiments, see Figure 5 As shown, the tunnel fan 1 is provided with a fan filter plate 18 at the air inlet and the air outlet, and the filter hole diameter of the fan filter plate 18 is smaller than the filter hole diameter of the tube filter plate 15; thus, particulate matter or smaller garbage can be filtered into the filter tube.

[0031] In some embodiments, see Figure 6 As shown in FIG. 7 , an L-shaped mounting frame 10 is provided at the bottom of the base frame 9 , and a fixing plate 13 is provided at the top of the L-shaped mounting frame 10 ; The tunnel fan 1 and the venturi tube 2 are both provided with a straight mounting frame 11 , and a fixing plate 13 is provided on the top of the straight mounting frame 11 .

[0032] In some embodiments, see Figure 6 As shown in 7, the bottom pipe seat 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; A rib is provided below the bottom tube seat 4 .

[0033] 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 principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A ventilation device for a tunnel, comprising a tunnel fan (1), wherein the tunnel fan (1) is provided with a fan blade (19), characterized in that , the tunnel fan (1) is provided with a detachable filter tube (3) at the air inlet for filtering fine garbage; The tunnel fan (1) is provided with a venturi tube (2) at the air outlet, which is used for pressurizing the air outlet and dividing the air flow at the air inlet to filter larger garbage; A collection box (14) is provided below the air inlet of the filter tube (3) for collecting larger garbage filtered out.

2. A tunnel ventilation device according to claim 1, characterized in that: The venturi tube (2) is provided with a throat (2a), and the throat (2a) is connected to the collection box (14) through a diverter pipe (12).

3. The ventilation equipment for tunnel according to claim 1, characterized in that: One end of the filter tube (3) is detachably sleeved on the air inlet of the tunnel fan (1) via a tube clamp; the other end is detachably clamped on the base frame (9) via a tube base (4) and a tube clamp (5).

4. A tunnel ventilation device as claimed in claim 3, characterized in that: The pipe base (4) is fixed to the base frame (9) by bolts; The pipe clamp (5) is arranged above the pipe base (4) in a manner that it can be raised or lowered by adjusting the screw rod (6) and the screw rod seat (7); The tube base (4) and the tube clamp (5) are both provided with clamping openings adapted to the filter tube (3); The filter tube (3) can be quickly disassembled and assembled by lifting and lowering the tube clamp (5).

5. A ventilation device for tunnel according to claim 4, characterized in that: An oblique fixed filter plate (16) is provided below the inlet of the filter tube (3); The collecting box (14) is adapted to the fixed filter plate (16) and can be pulled out and embedded under the fixed filter plate (16); A through hole is provided on the side wall of the collecting box (14), the flow dividing pipe (12) is connected to the interior of the collecting box (14) through the through hole, and the flow dividing pipe (12) is fixed to the bottom frame (9) via a pipe rack (17).

6. A ventilation device for tunnel according to claim 5, characterized in that: The inlet of the filter tube (3) is arranged obliquely, and the inclination α is 110 degrees to 160 degrees; The inlet of the filter tube (3) is provided with an adapted tube filter plate (15); The fixed filter plate (16) is installed directly below the tube filter plate (15).

7. The ventilation equipment for tunnel according to claim 4, characterized in that: The bottom end of the adjusting screw (6) is rotatably mounted on the pipe clamp (5), the middle part is threadably mounted on 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 means of bolts; At least one limiting column is provided at the bottom end of the pipe clamp (5), and a limiting hole adapted to the limiting column is provided on the pipe base (4); when the pipe clamp (5) is lowered and clamped, the limiting column can be embedded in the limiting hole.

8. The ventilation equipment for tunnel according to claim 3, characterized in that: The tunnel fan (1) is provided with a fan filter plate (18) at both the air inlet and the air outlet, and the filter hole diameter of the fan filter plate (18) is smaller than the filter hole diameter of the tube filter plate (15).

9. The ventilation equipment for tunnel according to claim 3, characterized in that: An L-shaped mounting frame (10) is provided at the bottom of the base frame (9), and a fixing plate (13) is provided at the top of the L-shaped mounting frame (10); The tunnel fan (1) and the venturi tube (2) are both provided with a straight mounting frame (11), and a fixing plate (13) is provided on the top of the straight mounting frame (11).

10. The tunnel ventilation equipment according to claim 5, characterized in that: The bottom pipe seat (4) and the fixed filter plate (16) are fixed to the bottom frame (9) by means of bolts; The screw seat (7) is provided with ribs on both the upper and lower sides; A rib plate is provided below the bottom tube seat (4).

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