KR20220086766A - Apparatus for soundproof barrier with air purification - Google Patents

Abstract

The present invention relates to an air purification soundproof tunnel, and more particularly, to an air purification soundproof tunnel installed on a road to attenuate noise caused by vehicle running.
An air purification soundproof tunnel according to the present invention is a tunnel comprising a pair of wall parts installed on both sides of a road and a roof part connecting the upper ends of the wall parts to form a tunnel space with an upper part closed between the wall parts. unit; It is installed on the inside of the wall part facing the tunnel space of the tunnel unit, and drops, sprays or sprays washing water around the inside of the wall part to remove the dust around the inside of the wall part. It includes a dust removal unit.

Description

Air purification soundproof tunnel {Apparatus for soundproof barrier with air purification}

The present invention relates to an air purification soundproof tunnel, and more particularly, to an air purification soundproof tunnel installed on a road to attenuate noise caused by the running of a vehicle.

In general, traffic noises such as friction noises, engine sounds, and horn sounds generated by vehicles occur on roads such as lanes, overpasses, bridges, and railroad tracks. Recently, large-scale high-rise apartments or large-scale residential and commercial complexes are concentrated in residential areas, and as the population density rises rapidly, the traffic volume in these residential areas is increasing. In addition, as the traffic volume rises, complaints from residents are increasing due to traffic noise generated from roads passing through residential areas or located nearby.

Accordingly, the demand for soundproof tunnels designed to block traffic noise generated on the road is increasing. Republic of Korea Registration Office No. 02-0380479 discloses a soundproof tunnel that is erected in a full tunnel type with a closed upper portion or a semi-tunnel type with a partially open upper portion to prevent such traffic noise.

The soundproof tunnel as described above can reduce noise pollution in neighboring residential areas by reducing traffic noise generated on the road by closing both sides and top of the road. However, in the soundproof tunnel as described above, as foreign substances such as dust or fine dust such as tire wear and exhaust gas are generated due to friction when the vehicle inside passes, it causes diseases in the respiratory tract of residents living nearby, or It causes a problem of contaminating the soundproof tunnel itself.

Republic of Korea Registered Utility No. 02-0380479 : Soundproof Tunnel

The present invention is to improve the above problems, and to remove pollutants generated inside the soundproof tunnel to prevent fine dust or dust from leaking out and to prevent the soundproof tunnel from being polluted. purpose is to

In order to solve the above technical problem, the air purification soundproof tunnel according to the present invention is a tunnel space with a pair of wall parts installed on both sides of a road and a closed upper part between the wall parts by interconnecting the upper ends of the wall parts. a tunnel unit including a roof portion forming a; It is installed on the inside of the wall part facing the tunnel space of the tunnel unit, and drops, sprays or sprays washing water around the inside of the wall part to remove the dust around the inside of the wall part.

According to an aspect of the present invention, the dust removal unit includes a washing water discharge unit installed on the inner upper portion of the wall unit and dropping the washing water to remove dust around the inner side of the wall unit, and the washing water is supplied to the washing water discharge unit. It includes a washing water supply unit.

In addition, the dust removal unit further includes at least one bucket having a washing water accommodating space in which the washing water discharged from the washing water discharge unit can be accommodated and formed in the shape of a housing with an open top, the bucket is located at the bottom An outlet hole is formed through which the washing water accommodated in the washing water receiving space can flow out.

According to another aspect of the present invention, the washing water supply unit includes a washing water storage tank provided with a storage space for storing the washing water, a washing water supply pipe interconnecting the washing water storage tank and the washing water discharge unit, and the washing water supply pipe installed in the washing water supply pipe and a washing water supply pump for supplying the washing water to the bucket through a supply pipe.

According to another aspect of the present invention, the dust removal unit further includes a recovery sump provided with an inlet through which the washing water discharged from the washing water discharge unit can be recovered in a region corresponding to the lower portion of the washing water discharge unit under the wall unit. and the recovery sump is connected to the washing water storage tank so that the introduced washing water flows into the washing water storage tank.

According to another aspect of the present invention, the dust removal unit is installed in the washing water receiving space of the bucket to filter foreign substances contained in the washing water accommodated in the washing water receiving space; a ceramic ball filter, a cement filter, and an activated carbon filter. , It further includes a filter member comprising at least one of the free carbon filter.

According to another aspect of the present invention, the dust removal unit further includes a scattering prevention guide for preventing the washing water falling from the bucket from scattering by the running wind of the vehicle, and the scattering prevention guide is the bucket of the bucket. It is inserted into the outlet hole and is formed to extend in the vertical direction so that the washing water flows along the outer circumferential surface of the scattering prevention guide.

According to another aspect of the present invention, the washing water supply unit is branched from the washing water supply pipe to spray washing water into the washing water receiving space of the bucket and is installed to extend into the inside of the bucket; It further includes a branch pipe opening and closing valve installed to open and close the washing water branch pipe.

As described above, in the air purifying soundproof tunnel according to the present invention, the cleaning water purifies foreign substances contained in the air around the wall by the dust removal unit, thereby removing pollutants generated inside the tunnel unit, and fine dust or dust flows out. It can prevent contamination and prevent the tunnel unit from being contaminated.

1 is a perspective view of an air purification soundproof tunnel according to a first embodiment of the present invention;
Figure 2 is a main perspective view for explaining the dust removal unit of Figure 1,
Figure 3 is a side cross-sectional view for explaining the dust removal unit of Figure 1,
4 is a side cross-sectional view of an air purification soundproof tunnel according to a second embodiment of the present invention.

Hereinafter, an air purification soundproof tunnel according to the present invention will be described with reference to the accompanying drawings.

1 to 3 show an air purification soundproof tunnel according to a first embodiment of the present invention. Referring to the drawings, the air purification and soundproofing tunnel according to the first embodiment of the present invention includes a tunnel unit 10 forming a tunnel space 12 having an open front-rear direction on a road, and air in the tunnel space 12 . It includes a dust removal unit for removing the contained dust.

The tunnel unit 10 interconnects a pair of wall parts 11 installed on both sides of the road and the upper ends of the wall parts 11 to form a closed tunnel space 12 between the wall parts 11. and a roof portion 15 to form.

The wall part 11 is a plurality of wall support members installed at equal intervals along the front and rear direction of the road on both sides of the road and interconnects the wall support members to prevent the wall support members from being tilted or disturbed. It is a wall composed of wall reinforcement members. The reinforcing member may be configured to include a transparent soundproofing plate installed between the round bars or wall support members. An exhaust hole through which air in the tunnel space 12 can be exhausted to the outside may be formed in the wall support member or the transparent sound insulation plate of the wall portion 11 . Alternatively, the transparent soundproofing plate may be omitted so that fine dust or dust in the tunnel space 12 may pass through between the wall support members and flow out to the outside.

The roof portion 15 includes the roof support members extending to a length corresponding to the distance between the wall portions 11 so as to interconnect the wall support members of the wall portion 11, and a transparent sound insulation plate installed between the roof support members. It may be composed of

The dust removal unit is installed inside each of the wall parts 11 facing the tunnel space 12 of the tunnel unit 10 . The dust removal unit is installed on the inner upper portion of the wall unit 11 and supplies washing water to the washing water discharge unit 20 that removes dust around the inner side of the wall unit 11 by dropping washing water, and the washing water discharge unit 20 and at least one bucket 21 having a washing water receiving space 22 in which the washing water discharged from the washing water discharging unit 20 can be accommodated.

The washing water discharge unit 20 is provided with a distribution pipe (33c) pipe installed at the inner upper end of the wall unit 11 through which the washing water is discharged.

The distribution pipe 33c is formed in a tubular shape having a predetermined length. The distribution pipe 33c is formed to extend to a length corresponding to the length of the bucket 21 in the front-rear direction. The distribution pipe 33c is connected to a discharge pipe 33b to be described later. The distribution pipe (33c) is installed on the top of the bucket (21). A plurality of washing water injection holes 33d are formed in the lower portion of the distribution pipe 33c to be spaced apart from each other at predetermined intervals along the front-rear direction. In this embodiment, the distribution pipe (33c) is sprayed so that the washing water is introduced into the washing water receiving space (22) through the washing water injection holes (33d) formed along the longitudinal direction of the bucket (21) in the plurality of washing water injection holes (33d) is composed Unlike this embodiment, the distribution pipe 33c has a plurality of nozzles installed so that the washing water is sprayed toward the bucket 21 in the longitudinal direction, sprayed sporadically in a predetermined pattern, and the washing water is sprayed through the nozzles. it might be In this embodiment, the distribution pipe (33c) is formed to extend to a length corresponding to the length of the wall portion (10) and is configured to be connected to one discharge pipe (33b), but differently the distribution pipe (33c) is formed along the longitudinal direction It may be configured to be divided into a plurality.

The bucket 21 is formed in the shape of a housing in which the side and the lower part are closed to form the washing water receiving space 22 , and the upper part is opened. The bucket 21 has a length corresponding to the length of the wall portion 11 along the front-rear direction. The bucket 21 may be configured to be divided into one or a plurality along the longitudinal direction. At the lower portion of the bucket 21, at least one outlet hole 23 through which the washing water accommodated in the washing water receiving space 22 can flow out is formed.

The bucket 21 is installed with one side perpendicular to the longitudinal direction fixed to the wall support member of the wall unit 11 . A plurality of buckets 21 are installed to be spaced apart from each other at predetermined intervals along the vertical direction.

At this time, the washing water flowing out from the relatively upper bucket 21 is easily introduced into the washing water receiving space 22 of the other bucket 21 located below through the open top of the other bucket 21 located below it. Each bucket 21 is formed in a shape in which the width on the side orthogonal to the longitudinal direction becomes wider as it progresses from the lower side to the upper side. The outlet hole 23 of the bucket 21 is formed to penetrate downward from the inner bottom surface of the bucket 21 . The outlet hole 23 of the bucket 21 is formed at a position corresponding to the open upper area of the other bucket 21 located below. In this embodiment, the outlet hole 23 of the bucket 21 is formed as a circular through hole, but differently from the bottom surface of the bucket 21, it may be configured in the form of a long hole having a predetermined length along the longitudinal direction of the bucket 21. .

The washing water supply unit 30 includes a washing water storage tank 31 provided with a washing water storage space 32 in which washing water is stored, and a washing water supply pipe 33 connected to the washing water storage tank 31 and installed on the inner upper portion of the wall unit 11 . ), the washing water supply pump 34 installed in the washing water supply pipe 33 to supply washing water to the bucket 21 through the washing water supply pipe 33, and the lower part of the wall 11, below the outlet hole of the bucket a recovery sump 39 into which the washing water leaked from the outlet hole can be introduced into an area corresponding to , and a controller (not shown) for controlling the operation of the washing water supply pump 34 .

The recovery sump (39) is installed at the lower part of the wall (11). The recovery sump 39 is installed in an area corresponding to the lower side of the outlet hole 23 of the bucket 21 . The recovery sump 39 is a container-shaped drainage structure in which an inlet 39a is provided at an upper portion corresponding to a lower portion of the outlet hole 23 of the bucket 21 . In this embodiment, the recovery sump 39 is installed to be buried underground so that the inlet 39a communicates with the tunnel space 12, but it may be installed on the ground differently. The recovery sump 39 has an inlet 39a formed therein. The recovery sump 39 is formed to extend outwardly from the upper edge of the inlet 39a to form a support protrusion 35 on which a grating 38, which will be described later, can be supported upward. A grating 38 is installed on the upper part of the recovery sump 39 . The grating 38 introduces washing water into the inlet 39a of the recovery sump 39 but prevents large-sized foreign substances such as garbage from entering. , expanded metal, etc. may be applied. The grating 38 is installed so that the rim portion is supported upward by the fulcrum 35 .

The washing water storage tank 31 is installed to be connected to the recovery sump 39 . The washing water storage tank 31 is composed of a storage tank having a washing water storage space 32 therein. The washing water storage tank 31 is preferably configured such that the height of the bottom surface is lower than the bottom surface of the recovery sump 39 so that the washing water flowing in from the recovery sump 39 flows in by its own weight. Alternatively, a recovery pump (not shown) may be installed between the washing water storage tank 31 and the recovery sump 39 to transfer the washing water flowing into the recovery sump 39 to the washing water storage tank 31 . Alternatively, the washing water storage tank 31 and the recovery sump 39 may be integrally formed.

A purification filter 40 is installed between the recovery sump 39 and the washing water storage tank 31 to filter out foreign substances contained in the washing water introduced into the recovery sump 39 . The purification filter 40 may be a filter capable of filtering out fine dust or dust of a fine size riding on the washing water, such as a non-woven fabric, a mesh, or a fabric filter. Alternatively, the purification filter 40 may be a carbon block, nanocomposite filter, or biofilter capable of removing heavy metals riding on the washing water.

The washing water supply pump 34 is a rotary pump or a double acting pump capable of sucking the washing water and discharging it to a predetermined head. The washing water supply pump 34 may be electrically connected to a control unit (not shown) to control the operation cycle of the washing water supply pump 34 and the discharge amount of the washing water.

The washing water supply pipe 33 is a suction pipe 33a interconnecting the washing water storage tank 31 and the washing water supply pump 34, and a discharge pipe 33b interconnecting the washing water supply pump 34 and the distribution pipe 33c. includes

The washing water supply pipe 33 is a hollow pipe having a flow path through which washing water can flow therein. The washing water supply pipe 33 has an adaptive length and standard according to the location and configuration of the washing water storage tank 31 , the washing water supply pump 34 , and the bucket 21 .

The suction pipe 33a has one side installed in the suction part of the washing water supply pump 34 and the other side installed in the washing water storage space 32 of the washing water storage tank 31 . At this time, the other side of the suction pipe 33a is preferably installed close to the inner bottom of the washing water storage tank 31 so that the washing water can be sufficiently sucked even when the level of the washing water in the washing water storage tank 31 changes. It is preferable that a strainer 41 is installed in the suction pipe 33a to block the suction of sand, rust, metal waste, etc., deposited on the bottom surface of the washing water storage tank 31 by the washing water supply pump 34 .

The discharge pipe (33b) has one side installed on the discharge part of the washing water supply pump (34), the other side extending upward and being supported by the wall (11).

A discharge pipe opening/closing valve 36 is installed in the discharge pipe 33b to block the supply of washing water through the discharge pipe 33b. It is preferable that the discharge pipe opening/closing valve 36 is electrically connected to a control unit (not shown) so that the user can control the opening/closing state of the discharge pipe 33b through the control unit (not shown).

Hereinafter, the effect of the air purification soundproof tunnel according to the first embodiment of the present invention configured as described above will be described. In a state in which washing water is filled in the washing water storage space 32 of the washing water storage tank 31, the air purification soundproof tunnel according to the first embodiment of the present invention may be operated.

In the above state, when the washing water supply pump 34 is operated, the washing water supply pump 34 sucks the washing water through the suction pipe 33a and supplies the washing water into the distribution pipe 33c through the discharge pipe 33b. The washing water 33c supplied into the distribution pipe 33c is sprayed downward through the washing water injection hole 33d of the distribution pipe 33c by the discharge pressure exerted by the washing water supply pump 34 .

Washing water sprayed from the distribution pipe (33c) is introduced into the inner space of the bucket (21) and falls to purify the dust or fine dust contained in the air in the section between the distribution pipe (33c) and the bucket (21). The washing water supplied to the bucket 21 from the distribution pipe 33c flows out and falls through the outlet hole 23 of the bucket 21, and the bucket 21 or the washing water storage tank located at the bottom from the bucket 21 located at the top (31) is introduced. The washing water purifies the dust or fine dust contained in the air in the section between the bucket 21 located at the top and the bucket 21 located at the bottom or the washing water storage tank 31 while falling.

As the washing water falls, it contains foreign substances such as dust or fine dust in the air. The washing water flowing into the recovery sump (39) flows into the washing water storage tank (39), and between the washing water storage tank (39) and the recovery sump (39). It passes through the purification filter 40 installed in the purifier and foreign substances are purified.

The air purification soundproof tunnel according to the first embodiment of the present invention as described above is a tunnel unit by cleaning the air in the tunnel space 12 by cleaning foreign substances contained in the air around the wall part 11 as the washing water falls. (10) exerts an effect of preventing contamination due to foreign substances, or fine dust or dust in the tunnel unit 10 from leaking to the outside.

In addition, in the air purification soundproof tunnel according to the first embodiment of the present invention as described above, when the washing water for purifying air is collected through the recovery sump 31 after falling to wash the foreign substances, the foreign substances are removed by the purification filter 40 It is configured to be stored in the washing water storage tank 31 after being filtered, so that the washing water is continuously circulated and there is an advantage that it is not necessary to constantly supply the washing water to purify the air.

4 shows an air purification soundproof tunnel according to a second embodiment of the present invention. In the air purification soundproofing tunnel according to the second embodiment of the present invention, components other than the washing water discharge unit 20 and the washing water supply unit 30 are the same as those of the first embodiment, and thus a redundant description will be omitted.

Referring to the drawings, the dust removal unit of the air purification and soundproof tunnel according to the second embodiment of the present invention is installed in the washing water receiving space 22 of the bucket 21 and foreign substances contained in the washing water accommodated in the washing water receiving space 22 . A filter member 50 that can filter the , and a scattering prevention guide that is inserted into the outlet hole 23 of the bucket 21 and prevents the washing water flowing out through the outlet hole 23 from being scattered by the driving wind of the vehicle. (60) is further provided.

The filter member 50 may include at least one of a ceramic ball filter, a cement filter, an activated carbon filter, and a free carbon filter. In the present embodiment, the filter member 50 is formed of a sphere and is composed of a ceramic ball having a micropore formed therein. The filter member 50 made of the ceramic filter of this embodiment is configured to be placed in a plurality of wash water receiving space 22 of the bucket 21 . In this embodiment, the filter member 50 is made of only ceramic balls, but unlike this embodiment, it may be configured to further include a cement filter, an activated carbon filter, or a free carbon filter in addition to the ceramic ball. As an example, the filter member 50 includes a ceramic ball filter and an activated carbon filter filled in the washing water receiving space 22 of the bucket 21 , and a cement filter or free carbon installed to cover the open top of the bucket 21 . It may consist of a filter.

Also, referring to the drawings, in this embodiment, an example in which the filter member 50 is installed in one bucket 21 among the plurality of buckets 21 is shown, but the washing water receiving space 22 of a plurality or all of the buckets 21 is shown. It can also be installed in

The scattering prevention guide 60 has an extension portion 61 extending in the vertical direction so that the washing water flows along the outer peripheral surface of the scattering prevention guide 60, and the extension portion 61 has an outlet hole 23 of the bucket 21 It includes a coupling portion 62 for fixing the position of the extension portion 61 in the inserted state.

The extension part 61 is formed in a tubular shape smaller than the diameter of the outlet hole 23 of the bucket 21 . The coupling part 62 has a larger diameter than the extension part 61 from the upper end of the extension part 61, and a flange 64 extending to have a diameter corresponding to the inner diameter of the outlet hole 23 of the bucket 21. and a flange fixing member 63 extending downward from the outer side of the flange 64 and having a through hole communicating the outlet hole 23 of the bucket 21 and the washing water receiving space 22 . The flange fixing member 63 is screwed to the bottom surface of the bucket 21 in a state in which the extension portion 61 is inserted into the outlet hole 23 to fix the position of the extension portion 61 .

In the drawings, the extension part 61 is illustrated in an embodiment extending in a straight line along the vertical direction, but unlike this, the extension part 61 is formed in a spiral or curved shape along the vertical direction to increase the area in contact with the air for washing water. that may apply.

The washing water supply unit 30 is installed in the washing water supply pipe 33 to spray the washing water into the washing water receiving space 22 of the bucket 21, and the washing water pipe 42 is installed in the washing water branch pipe. A branch pipe opening/closing valve 43 for opening and closing the 42 is further provided.

The washing part organ 42 has a branch pipe 42a having one side connected between one side and the other side of the discharge pipe 33b and the other side installed to be accommodated inside the washing water receiving space 22 of the bucket 21, and the bucket It includes a washing pipe (42b) installed to be connected to the branch pipe (42a) on the inside of the (21).

The washing tube 42b is formed in a tubular shape having a predetermined length. The washing tube 42b is formed to extend to a length corresponding to the length of the bucket 21 along the front-rear direction. A plurality of cleaning holes 42c are formed on the upper portion of the cleaning tube 42b at predetermined intervals along the front-rear direction. In this embodiment, the washing hole 42c of the washing pipe 42b is formed to penetrate upward from the center direction of the washing pipe 42b. At this time, a plurality of washing holes 42c are formed to be spaced apart from each other at a predetermined angle, and the washing water is sporadically sprayed in the washing water receiving space 22 . Alternatively, a plurality of nozzles are installed in the washing pipe 42b so that washing water is sprayed sporadically in a predetermined pattern in the inner space of the bucket 21 along the longitudinal direction of the washing pipe 42b, and the washing water can be discharged through the nozzles. It may be configured to be sprayed. In this embodiment, the washing pipe (42b) is formed to extend to a length corresponding to the length of the bucket (21), but the washing pipe (42b) is configured to be divided into a plurality along the longitudinal direction, and each divided washing pipe (42b) ) may be configured to be connected to the discharge pipe (33b) through an individual branch pipe (42a).

The branch pipe on/off valve 43 is installed on the branch pipe 42a. The branch pipe opening/closing valve 43 is electrically connected to a control unit (not shown). Under the control of the controller (not shown), the branch pipe opening/closing valve 43 opens the branch pipe 42a so that the washing water flows into the washing pipe 42b through the branch pipe 42a, or the washing water flows into the washing pipe 42b. A solenoid valve that can close the branch pipe (42a) to block the inflow into the can be applied. At this time, the discharge pipe opening/closing valve 36 is installed at a position between the portion where the branch pipe 42a is connected from the discharge pipe 33b and the distribution pipe 33c, so that the washing water flows into the distribution pipe 33c and the washing pipe 42b. It is preferably configured to be able to individually control what is supplied.

In this embodiment, the washing part engine 42, the branch pipe opening/closing valve 43 and the filter member 50 are configured to coexist in one bucket 21, but they may be separately installed differently.

As described above, the air purification soundproofing tunnel according to the second embodiment of the present invention is installed in the bucket 21 in a state where the cleaning efficiency is reduced while the washing water falls due to the contaminants being contained as it passes through the bucket 21. As the foreign substances contained in the washing water are purified by the filter member 50, the washing efficiency of washing the pollutants as the washing water falls is exhibited.

In addition, in the air purification soundproof tunnel according to the second embodiment of the present invention as described above, the washing water flowing out into the outlet hole 23 of the bucket 21 is along the outer peripheral surface of the extension part 61 of the scattering prevention guide 60 . As it falls, a predetermined adhesive force is generated between the extended part 61 and the washing water by the surface tension exerted between the extended part 61 and the washing water. This prevents the washing water from scattering by the driving wind of the vehicle, and has the advantage of reducing the consumption rate of the washing water due to the scattering of the washing water.

In addition, in the air purification soundproofing tunnel according to the second embodiment of the present invention as described above, washing water is periodically sprayed from the washing pipe 42b in the washing water receiving space 22 of the bucket 21 and deposited in the bucket 21. By washing foreign substances or foreign substances adsorbed to the filter member 50 installed in the bucket 21, the outlet hole 23 of the bucket 21 is prevented from being blocked, and excessive foreign substances are adsorbed to the filter member 50 to filter the washing water. It has the advantage of preventing the efficiency of the filter member 50 from being reduced.

The air purification soundproofing tunnel according to the present invention described above has been described with reference to an example shown in the drawings, but this is only an example, and those of ordinary skill in the art can perform various modifications and equivalent implementations therefrom. It will be appreciated that examples are possible. Accordingly, the scope of true technical protection of the present invention should be defined by the technical spirit of the appended claims.

10: tunnel unit 11: wall part
12: tunnel space 15: roof part
20: washing water discharge unit 30: washing water supply unit

Claims (8)

a tunnel unit including a pair of wall parts installed on both sides of a road and a roof part connecting the upper ends of the wall parts to form a closed tunnel space between the wall parts;
It is installed on the inside of the wall part facing the tunnel space of the tunnel unit, and by dropping, spraying, or spraying washing water around the inside of the wall part to remove the dust around the inside of the wall part characterized by comprising a dust removal unit. Air purification soundproof tunnel. The method of claim 1,
The dust removal unit includes a washing water discharging unit installed on the inner upper portion of the wall unit and dropping the washing water to remove dust around the inner side of the wall unit, and a washing water supply unit supplying the washing water to the washing water discharging unit. Air purification soundproof tunnel. 3. The method of claim 2,
The dust removal unit further includes at least one bucket having a washing water accommodating space in which the washing water discharged from the washing water discharge unit can be accommodated and formed in the shape of a housing with an open top,
The air purifying soundproof tunnel, characterized in that the bucket has an outlet hole formed in the lower part through which the washing water accommodated in the washing water receiving space can flow out. 3. The method of claim 2,
The washing water supply unit includes a washing water storage tank provided with a storage space for storing the washing water, a washing water supply pipe interconnecting the washing water storage tank and the washing water discharge unit, and the washing water supply pipe installed in the washing water supply pipe to the bucket through the washing water supply pipe. Air purification soundproof tunnel, characterized in that it comprises a washing water supply pump for supplying. 5. The method of claim 4,
The dust removal unit further includes a recovery sump provided with an inlet for recovering the washing water discharged from the washing water discharge unit in an area corresponding to the lower portion of the washing water discharge unit under the wall unit,
and the recovery sump is connected to the washing water storage tank so that the introduced washing water flows into the washing water storage tank. 4. The method of claim 3,
The dust removal unit is installed in the washing water receiving space of the bucket to filter out foreign substances contained in the washing water accommodated in the washing water receiving space. At least one of a ceramic ball filter, a cement filter, an activated carbon filter, and a free carbon filter. Air purification soundproofing tunnel, characterized in that it further comprises a filter member comprising a. 4. The method of claim 3,
The dust removal unit further includes a scattering prevention guide for preventing the washing water falling from the bucket from being scattered by the driving wind of the vehicle,
The scattering prevention guide is inserted into the outlet hole of the bucket and the washing water is extended in the vertical direction to flow along the outer circumferential surface of the scattering prevention guide. 5. The method of claim 4,
The washing water supply unit branched from the washing water supply pipe to spray the washing water into the washing water receiving space of the bucket and installed to extend into the inside of the bucket, and installed in the washing water pipe to open and close the washing water branch pipe Air purification soundproof tunnel, characterized in that it further comprises a branch pipe on/off valve.

Images