KR200424756Y1 - Dust collector for tunnel - Google Patents

Abstract

The present invention relates to a dust collecting device for collecting and creating a pleasant tunnel atmospheric environment by effectively settling fine dust flowing into the drainage passage with air (airflow) by the pressure difference between the inside and the outside of the U-shaped drainage passage. will be.

The present invention is covered with a U-shaped drainage channel of the tunnel and the cap is formed with a reticulated inlet so that fine dust flows into the interior of the drainage, and the interior of the drainage is partitioned up and down to form an upper settling chamber at the top and a lower portion at the bottom. A partition formed between a bottom of the drainage channel and a lid to form a sinking chamber, and a partition having a reticulated inlet port so that fine dust flows into the lower settling chamber, and an interval for maintaining the gap so that the partition is separated from the bottom of the drainage by a predetermined distance upwardly. Characterized in that the holding member and the like.

Atmosphere, lid, fine dust, automobile, dust collection, rolling stock, partition, tunnel

Description

Dust collector for tunnels

1 is a longitudinal cross-sectional view showing the structure of a general tunnel.

Figure 2 is a partial transverse cross-sectional view showing a dust collection process according to the prior art.

3 is a perspective view of the dust collector for the tunnel according to the first embodiment of the present invention.

4 is a longitudinal sectional view of the dust collector for the tunnel according to the first embodiment of the present invention.

5 is a state diagram used in the dust collector for the tunnel according to the first embodiment of the present invention.

6 is a perspective view of the dust collector for the tunnel according to the second embodiment of the present invention.

7 is a longitudinal sectional view of the dust collector for the tunnel according to the second embodiment of the present invention.

8 is a perspective view of the dust collector for the tunnel according to the third embodiment of the present invention.

Figure 9 is a perspective view of the cut state so that the longitudinal section of the dust collector for tunnel according to the third embodiment of the present invention.

10 is a longitudinal cross-sectional view of the dust collector for the tunnel according to the third embodiment of the present invention.

<Explanation of symbols on main parts of the drawings>

50: drainage path 55d: lower settling chamber

55u: upper settling chamber 60: lid

65 inlet 70: partition

70L: left partition 70R: right partition

75: inlet 80a: support leg

80b: Hook Rod 80c: Vertical Plate

80L: Left Vertical Plate 80R: Right Vertical Plate

82: hook portion 84: protrusion

86: reinforcing hole

1. Technology Field

The present invention relates to a tunnel dust collector which collects fine dust in a tunnel (small dust that is hard to see with the naked eye) in a natural manner and prevents fine dust from spreading and polluting the tunnel atmosphere.

2. Definition of terms

A tunnel is a long, almost horizontal, thin passage made through a river or under the sea, in the ground, or in a mountain. It is a waterway for hydro power generation and irrigation, such as road tunnels and railway tunnels. Tunnels ㉢ Water and sewage and electric lines, such as pipelines are divided into large-size tunnels, etc. Here, it refers to a traffic tunnel where air flows when a vehicle runs.

3. Structure of the tunnel

As shown in FIG. 1, the shotcrete layer 22 formed by the shotcrete method on the rock surface (excavation surface) formed by boring the rock 10 and filling and blasting the hole with the gunpowder, and the shotcrete layer ( 22) a lining concrete layer 24 in which reinforcing bars are laid and formed according to design so as to improve structural stability, interposed between the lining concrete layer 24 and the shotcrete layer 22, and the groundwater. Buried in the form connected to both ends of the waterproof sheet 30 to prevent the permeation of the lining concrete layer 24 and the ground sheet flowing downward through the waterproof sheet 30 to be drained. Both sides of the floor (road in the case of road tunnels, tracks in the case of road tunnels) to receive and drain unnecessary water such as sewage flowing downward through the inner surface of the drain pipe 40 and the lining concrete layer 24, respectively. It is composed of a conduit 50 in the form of open water.

Here, the drainage passage 50 is composed of a U-shaped pipe passage installed along the longitudinal direction of the tunnel, is connected to each other by the drainage pipe 40 and the connection pipe, it may be formed in the center of the floor.

4. Atmospheric environment of the tunnel

Most of them are natural ventilation (piston effect: for example, when the train arrives, the wind blows from the tunnel to the platform by the train when the vehicle arrives). Mechanical ventilation (forced ventilation) or natural ventilation and mechanical ventilation by using a fan or the like is ventilated at the same time, but it is basically a place where the external influence is less affected. Space.

5. Harmfulness of fine dust

-It is the main cause of polluting the air by scattering the light in the air, disrupting the clock, and shortening the visibility.

-It penetrates deep into human lungs and is a direct cause of various respiratory diseases, and decreases the body's immune function.

6. Prior art

Looking at the prior art related to the air pollution prevention (fine dust diffusion prevention) of the tunnel as follows.

① Natural collection of fine dust

The tunnel generates high speed air from time to time due to the vehicle being driven. At this time, the front of the vehicle is positive pressure (+) because the vehicle is driving air, the rear is negative pressure (-), the front of the vehicle is higher than the rear pressure.

This effect also affects the drainage path 50 (hereinafter, omitted), as shown in FIG. 2, so that a pressure difference is generated between the inside and the outside of the drainage path each time the vehicle travels. The zone R, which is located and affected by the negative pressure, is sucked into the drainage air (because air has a tendency to move from high pressure to low pressure), and at the same time (because the drainage air flows out) The outside air of the drainage channel is easily inflowed to the inside of the drainage, and is located in the front of the vehicle in the drainage path (F) affected by the positive pressure, so that the external air of the drainage channel is sucked into the drainage. In this process, fine dust enters and is collected inside the drainage path with air.

However, since the collection of fine dust is not covered in most of the drainage channels, when the external air of the drainage is sucked into the drainage channel, there is no means to slow down the flow rate, so the dust flows in almost without deceleration. There was a problem that the collected fine dust is scattered and spilled again and spread to the outside of the drainage path and the collection effect is minimal.

On the other hand, when the lid (grating) is used, the resistance of the lid can reduce the flow rate of the air flowing into the drainage passage, but the deceleration effect is weak because the unit hole of the lid is relatively large. Of course, if the size of the unit hole is small, the deceleration amount can be increased. However, the greater the deceleration effect, the smaller the inflow of air and the smaller the inflow of fine dust.

On the other hand, in the case of the lid, since most of the unit holes are formed long in the vertical direction (in the transverse direction of the road / track) with respect to the longitudinal direction of the tunnel, there is also a problem that it is inefficient in terms of air inflow since it is also perpendicular to the air flow direction. .

② Watering vehicle or air purifying vehicle

In recent years, as a countermeasure to create a comfortable atmosphere for tunnels, sprinkling vehicles or air purification vehicles (fine dust intake vehicles) have been in operation. However, this method has a problem that a large manpower is required and an energy supply is required. In addition, there was a problem that causes a huge disruption in the communication of the vehicle. In particular, in the case of railway tunnels, it was not possible to work during the operating hours of railway vehicles, so it was necessary to take time constraints to work only when railway vehicles were not in operation.

③ Watering device operation

An apparatus for spraying water by supplying water from a water tank to a water supply pipe installed along the longitudinal direction of the tunnel wall by a pressure action of the water pump and ejecting the water from a nozzle installed at an interval to the water supply pipe has been proposed.

This device has the advantage of removing fine dust in real time, unlike the prior art ② (sprinkling vehicle or air purifying vehicle operation). However, this also has a problem that the energy supply is required, and because the mechanical device has a problem that the structure is complicated.

The present invention was devised to solve the problems of the prior art, and the mesh cap is installed at the inlet of the drainage so that the upper and lower double meshes are installed in the drainage of the tunnel. By lowering the air (airflow) velocity flowing into the drainage channel by the resistance of the lid and the partition, it is possible to prevent the fine dust trapped in the drainage to be scattered, thereby effectively collecting dust for tunnels The purpose is to provide a device.

The present invention for realizing the technical problem as described above is covered with a U-shaped drainage channel of the tunnel and the cap is formed with a reticulated inlet so that fine dust flows into the interior of the drainage, the interior of the drainage is partitioned up and down the top A partition formed between the bottom and the lid of the drainage passage so that a sinking chamber is formed and a lower sinking chamber at the bottom thereof, and a partition formed with a reticulated inlet so that fine dust flows into the lower sinking chamber, and the partition is fixed upward from the bottom of the drainage passage. Characterized in that it consists of a gap holding member for maintaining the gap so that the distance.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.

3 is a perspective view showing an installation state of the tunnel dust collector according to the first embodiment of the present invention, Figure 4 is a longitudinal sectional view showing an installation state of the tunnel dust collector according to the first embodiment of the present invention.

The tunnel dust collector according to the first embodiment of the present invention is installed in one line in the U-shaped drainage passage 50 of the tunnel, as shown in FIGS. 3 and 4, and the lid 60, the partition 70, and the spacing. It is composed of a holding member.

The lid 60 is installed in such a way as to cover the opening of the drainage passage 50, and the inlet port (over the entire edge thereof) is disposed so that the fine dust of the tunnel is introduced into the drainage passage 50 together with air (airflow). 65 is formed, the inlet 65 is formed in the form of a net so that foreign matter such as garbage is prevented from entering the interior of the drainage path (50).

Here, the unit hole constituting the inlet 65 of the lid 60 is formed in a slot shape formed to be elongated along the air flow direction, that is, the longitudinal direction of the tunnel so that air is effectively introduced into the drain passage 50. do.

The partition 70 secondly prevents foreign matter from flowing into the drainage passage 50, while decelerating the speed of the air first reduced by the lid 60 in the process of flowing into the drainage passage 50 in a second manner and draining the drainage passage. The fine dust collected inside the 50 is prevented from being scattered by the air flowing into the drain 50.

The partition 70 divides the inside of the drainage passage 50 vertically so that the upper settling chamber 55u is formed at the upper side and the lower settling chamber 55d is formed at the bottom, and the lid 60 is formed. Is located between). In addition, a net inlet 75 is formed throughout so that fine dust introduced into the upper settling chamber 55u together with air flows into the lower settling chamber 55d.

Here, the unit hole constituting the inlet 75 of the partition 70 is smaller in size and arranged more closely than the unit hole constituting the inlet of the lid 60 to prevent foreign matter inflow and reduce the flow rate. do. Of course, if the unit hole constituting the inlet 75 of the partition 70 is too small may be blocked by fine dust or foreign matter, the size should be determined in consideration of this point.

In addition, the unit hole constituting the inlet 75 of the partition 70 is formed long in the vertical direction, the inner circumference is formed in the form gradually narrowed toward the lower side. Therefore, it is easy for fine dust to flow into the lower settling chamber 55d, but once it is introduced, it is difficult to flow out from the lower settling chamber 55d.

The space maintaining member is to maintain a gap between the bottom of the drainage passage 50 and the partition 70 so that the partition 70 is a predetermined distance upward from the bottom of the drainage passage 50, and is composed of a plurality of support legs 80a. do.

Here, the support leg (80a) is connected in the form perpendicular to the bottom edge of the partition 70, the partition 70 by holding the partition 70 is located between the bottom of the drainage passage 50 and the lid (60). As shown in the drawing, two pieces may be arranged on both sides (front and rear) of the edges as shown in the drawings, or may be arranged on all sides of the edges. Of course, the arrangement structure of the support leg (80a) can be changed as much as possible within the range that can hold the partition 70 stably.

5 is a partial cross-sectional view showing a state of use of the tunnel dust collector according to the first embodiment of the present invention, that is, a dust collection process. Referring to this, the operation of the first embodiment is as follows.

1. Fine dust collection

As described above, when the vehicle travels through the tunnel, the front of the vehicle becomes positive pressure and the rear of the vehicle becomes negative pressure.

Therefore, as shown in FIG. 5, the section R positioned at the rear of the vehicle in the drainage path 50 (hereinafter, omitted) is affected by sound pressure, and the internal air of the drainage path is sucked to the outside. Since the outside air is likely to flow into the drain, the area (F) that is located in front of the vehicle in the drain and is affected by the positive pressure is sucked into the drain of the drain. At this time, the fine dust in the tunnel is introduced into the drainage path together with the air.

The air introduced into the interior of the drainage channel through the inlet 65 of the lid 60 is then first decelerated by the resistance by the inlet 65 of the lid 60 to reach the upper settling chamber 55u, and then continues. By lowering, the lower settling chamber 55d is reached through the inlet 75 of the partition 70. At this time, the air reaching the lower settling chamber (55d) is secondly decelerated by the resistance by the inlet (75) of the partition 70, the speed is sharply lowered.

In this process, the fine dust contained in the air is collected in the sedimentation, lower settling chamber 55d under the influence of gravity, and the collected fine dust is not scattered because the speed of the air is reduced.

2. Treatment of collected fine dust

The fine dust collected in the drainage passage 50 is normally swept by the water flowing into the drainage passage 50 and introduced into the drainage pipe (40 in FIG. 1) and discharged together with the water.

6 is a perspective view showing an installation state of the tunnel dust collector according to a second embodiment of the present invention, Figure 7 is a longitudinal cross-sectional view showing an installation state of the tunnel dust collector according to a second embodiment of the present invention.

In the dust collector for the tunnel according to the second embodiment of the present invention, as shown in FIG. 6 and FIG. 7, only the spacing member is slightly different for the same configuration and its operation as compared with the first embodiment. . That is, the space keeping member of the second embodiment is to allow the partition 70 to be suspended from the lid 60 so that the partition 70 is located between the bottom of the drainage passage 50 and the lid 60, and a plurality of hook rods ( 80b).

In this case, the hook rod 80b is connected in a form perpendicular to the top edge of the partition 70, and a hook portion 82 is formed at an upper end thereof to a unit hole constituting the inlet 65 of the lid 60. Each may be arranged, and as shown in the drawing, two may be arranged on both sides (front and rear) of the edge, or may be arranged on each side of the edge. Of course, the arrangement of the hook rod (80b) can be changed any number within the range as long as the partition (70) can be securely suspended.

Figure 8 is a perspective view showing the installation state of the tunnel dust collector according to a third embodiment of the present invention, Figure 9 shows a cut state so that the longitudinal section of the tunnel dust collector according to a third embodiment of the present invention 10 is a perspective view illustrating a mounting state of a dust collector for a tunnel according to a third embodiment of the present invention.

As shown in FIGS. 8 to 10, the dust collecting device for the tunnel according to the third embodiment of the present invention has a spacing member and the other structure and its operation as compared with those of the first or second embodiment. Only the configuration of the partition 70 is somewhat different.

First, referring to the space keeping member of the third embodiment, by connecting the lid 60 and the partition 70 so that the partition 70 is suspended from the lid 60, the partition 70 is the bottom of the drainage passage 50 and the lid ( Consisting of a vertical plate (80c) to be positioned between the 60, the partition (70) abuts the side wall of the drainage passage 50, respectively, when located between the bottom of the drainage passage 50 and the lid (60) It consists of a left vertical board 80L and a right vertical board 80R.

Here, the left vertical plate 80L and the right vertical plate 80R connect left and right ends of the partition 70 to the lower surface of the lid 60, respectively. In addition, the left vertical plate 80L and the right vertical plate 80R are each formed with at least one protrusion 84 along the longitudinal direction on a surface facing the side wall of the drainage passage 50, and the protrusion 84 is not formed. A plurality of reinforcing holes 86 are formed respectively to reinforce structural strength and to save material in the unworked portion.

Next, with reference to the partition 70 of the third embodiment, when the partition 70 is located between the bottom of the drainage passage 50 and the lid 60, the left vertical plate 80L and the right vertical plate 80R are protrusions ( 84, the left end is divided into 70 L of left partitions connected to the left vertical plate 80L and the right partition 70R connected to the right vertical plate 80R so as to be able to be retracted.

Therefore, in the third embodiment, when the partition 70 is positioned between the bottom of the drainage passage 50 and the lid 60, the left vertical plate 80L and the right vertical plate 80R fit with the side walls of the drainage passage 50, respectively. It also comes in contact with, and in this process is retracted by the protrusion (84). This is possible because the partition 70 is divided into the left partition 70L and the right partition 70R as described above, so that the left vertical plate 80L and the right vertical plate 80R are separated from the drainage passage 50. It is in close contact with each side wall.

Although the present invention has been described above with reference to the accompanying drawings, the present invention is not limited to the embodiments and drawings disclosed herein, and various modifications may be made by those skilled in the art within the technical scope of the invention.

The present invention as described above, when the fine dust in the tunnel is introduced into the drainage path with air due to the pressure difference between the inside and the outside of the U-shaped drainage path, the flow rate is sharply lowered and scattered due to the resistance of the lid and the partition. Without being trapped inside the drainage path, it is possible to prevent the diffusion of fine dust, and further, it is possible to create a comfortable tunnel atmosphere environment.

In addition, the present invention is to collect the fine dust in a natural way, so there is an advantage that the manpower is unnecessary, there is no energy consumption, very economical in terms of maintenance and management.

Claims (10)

A lid 60 covered with the U-shaped drainage passage 50 of the tunnel and having a reticulated inlet 65 so that fine dust flows into the drainage passage 50; The interior of the drainage passage 50 is divided up and down is positioned between the bottom and the lid 60 of the drainage passage 50 so that the upper settling chamber (55u) is formed at the upper side and the lower settling chamber (55d) is formed at the bottom. A partition 70 formed with a network inlet 75 so that fine dust flows into the lower settling chamber 55d; Dust collecting device for a tunnel, characterized in that the partition 70 is composed of a gap holding member for maintaining a distance apart from the bottom of the drainage passage 50 by a predetermined distance upward. The method of claim 1, Dust collecting device for a tunnel, characterized in that the unit hole constituting the inlet (75) of the partition (70) is smaller and more compact than the unit hole constituting the inlet (65) of the lid (60). The method of claim 2, Dust collecting device for a tunnel, characterized in that the unit hole constituting the inlet (75) of the partition (70) is formed long up and down, the inner circumference becomes narrower toward the lower side. The method of claim 3, The unit hole constituting the inlet (65) of the lid (60) is a tunnel dust collector, characterized in that formed in the long slot shape along the longitudinal direction of the tunnel. The method according to any one of claims 1 to 4, The gap maintaining member is connected to the bottom edge of the partition (70) in the form of a dust collecting device for a tunnel, characterized in that consisting of a plurality of support legs (80a) supporting the partition (70). The method according to any one of claims 1 to 4, The gap retaining member is connected to the upper edge of the partition 70 in the form of a stand and the hook portion 82 is formed at the top so that the hook portion 82 is suspended from the lid 60 of the lid 60 Dust collecting device for a tunnel, characterized in that consisting of a plurality of hook rods (80b) caught in the unit hole. The method according to any one of claims 1 to 4, The gap maintaining member is a tunnel dust collector, characterized in that consisting of a vertical plate (80c) connecting the lid (60) and the partition (70) so that the partition (70) hanging on the lid (60). The method of claim 7, wherein The vertical plate 80c connects the left and right ends of the partition 70 with the lid 60, respectively, so that the partition 70 is located between the bottom of the drainage passage 50 and the lid 60. Dust collecting device for a tunnel, characterized in that consisting of the left vertical plate (80L) and the right vertical plate (80R) to be in contact with the side wall of the drain passage (50), respectively. The method of claim 8, The left vertical plate 80L and the right vertical plate 80R are each formed with at least one protrusion 84 on a surface facing the side wall of the drainage passage 50, When the partition 70 is located between the bottom of the drainage passageway 50 and the lid 60, the left end of the left vertical plate 80L and the right vertical plate 80R are lifted by the protrusion 84. Dust collecting device for a tunnel, characterized in that the left partition (70L) connected to the left vertical plate (80L) and the right end is divided into a right partition (70R) connected to the right vertical plate (80R). The method of claim 9, The left vertical plate (80L) and the right vertical plate (80R) is a tunnel dust collector, characterized in that a plurality of reinforcing holes (86) are each formed.

Images