KR101777586B1 - Tubular apparatus of reducing non-point pollution material for the bridge - Google Patents

Abstract

The present invention relates to an apparatus for preventing contaminants accumulated on a surface of a bridge from flowing into a river by utilizing existing drainage holes, consisting of an upper connection pipe connected to a drain pipe provided at a drainage hole of the bridge, a purifying pipe extending to the upper connection pipe to remove non-point pollutants in the initial storm, and a lower pipe extending from the end of the purifying pipe to be connected to the drain pipe. The purifying pipe includes an outwardly inclined extending portion and a purified drainage portion having a straight pipe shape. The purified drainage portion includes: an outer pipe extending vertically from a lower end of the extension section and having an intruded shape; and an inner pipe which is installed inside the outer pipe and has a lower portion closed to form a settling portion and an upper portion opened to form an initial storm inflow port and to remove non-point contamination from the storm introduced through the initial storm inflow port. As such, an excellent passage is formed between the outer pipe and the inner pipe.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a non-point-

The present invention relates to an apparatus for preventing contaminants accumulated on the surface of bridges from flowing into a river, and more particularly, to an apparatus for preventing the contaminants from flowing into a river through a drain hole provided in a bridge when rainfall occurs, The present invention relates to a non-point pollutant abatement apparatus for a bridge capable of easily utilizing an existing drain port of a bridge.

Until now, it has been the policy direction of the main water quality management to prevent contamination of water quality through disposal of point pollutant sources such as sewage, wastewater and livestock manure which are easy to generate and track pollution sources.

However, as urbanization progresses, land use becomes more diverse and advanced, and nonpoint source pollution increases. Therefore, water quality management centering on the above point pollution source has a limitation in preventing pollution of water resources.

Non-point pollution source refers to a pollutant source that flows into public waters such as rivers due to effluent flowing out during rainfall through various land use forms. It is not easy to manage and dispose of, and pollutants generated from such non- It is known that the water quality of the water source is very influential.

Especially, pollutants accumulated on the pavement of roads and bridges contain a large amount of various heavy metals such as zinc and lead, which are generated by vehicles, and measures against such pollutants are very urgent.

Various methods and apparatuses have been developed to prevent non-point pollutants from flowing into rivers and the like. One example of such an apparatus is disclosed in Korean Patent Registration No. 10-1339617, entitled " have.

As shown in FIG. 1, the non-point pollution remediation apparatus includes an initial storm collector pipe 20 and a subsequent storm drain pipe 22 branched from and connected to the lower portion of the catch 12 of the bridge slab 10; A non-point polluted water purification tank 26 capable of collecting the initial rainwater discharged through the initial excellent water collector pipe 20 up to a predetermined height; A non-point pollution filter device (30) installed inside the non-point polluted water purification tank (26) to filter the foreign matter contained in the initial rainwater and discharge the foreign matter to the bridge drain pipe (14); An excellent directional valve (52) for determining the discharge flow path of the rainfall introduced from the catching hole (12) to selectively flow either the initial storm collector pipe (20) or the subsequent rainfall drain pipe (22); A water level sensing means (40) for sensing the water level of the initial rainwater flowing into the non-point polluted water purification tank (26); And a valve motor 50 for operating the superior directional valve 52 according to an electrical signal of the water level sensing means 40 to determine the discharge passage for the initial storm and the subsequent rainfall.

In the above-mentioned prior art non-point pollution purification apparatus, when there is no rainfall, the motor control device rotates the valve motor 50 to rotate the forward directional valve 52 to the forward position, and the subsequent rainfall- (22) is closed with the upper direction inlet valve (52) and the early stage collector pipe (20) is connected to the catching port (12). When the rainfall occurs in this state, the initial rainwater passes through only the early storm collector pipe 20, flows into the non-point polluted water purification tank 26, purified through the non-point pollution filter device 30, and discharged to the bridge water pipe 14 The detection switch 42 is turned on in accordance with the rising of the level of the water level sensing means 40 and the turned on signal is transmitted to the motor control device 60 The valve motor 50 is rotated in the reverse direction and the directional valve 52 is moved backward so that the subsequent rainfall water pipe 22 is connected to the water collecting port 12 in a straight line direction so that the subsequent rainfall does not occur in the non- And then discharged directly to the bridge drain pipe 14 through the subsequent rainfall drain pipe 22. At this time, the operating state of the outward direction valve 52 is continuously maintained for a set time in anticipation of the time period during which the rain is continuously lowered, so that the outflow directional valve 52 opens the subsequent rainfall drain pipe 22 for a predetermined time.

This prior art non-point pollution cleaner is positive in that it can efficiently remove pollutants by purifying only the initial pollutants having a relatively high pollutant concentration during rainy days. However, the initial pollutant discharge pipe 20 and the subsequent rainwater discharge pipe 22 are made by the superior directional valve 52 which moves back and forth by the operation of the valve motor 50 so that the malfunction of the valve motor 50 or the directional valve 52 causes malfunction This malfunction can not exclude that the initial storm having a high concentration of pollutants can be sent to the subsequent rainfall drain pipe 22 rather than the early water collecting drain pipe 20 and the initial rainwater drain pipe 20 and the non- 26 and the cleaning of the non-point pollution filter device 30 is not easy, and the operation of collecting the dirt such as the dust particles settled on the bottom of the valve motor 50 The use of electrical energy for operation has the problem of increasing maintenance costs and decreasing durability.

Further, the above-mentioned non-point pollution cleaner of the prior art is additionally installed in a conventional drain pipe, which is complicated in construction and installed with a power means such as a motor, so that the manufacturing cost is greatly increased. 210).

In addition, the prior art non-point pollution cleaner can only remove pollutants having a large specific gravity and can not remove pollutants having less specific gravity than water such as oil leaked from a vehicle, have.

KR 10-1339617 B1 KR 10-0941634 B1 KR 10-1453203 B1

Disclosure of Invention Technical Problem [8] The present invention has been proposed in order to solve the problems of the prior arts described above, and it is an object of the present invention to provide a watercraft which is easy to install on a water pipe installed in a bridge, easy maintenance and durability, The object of the present invention is to provide a non-point pollutant abatement apparatus for a pipe-type bridge, which has a low production cost and is not deteriorated in appearance.

It is another object of the present invention to provide a non-point pollutant abatement device for a pipe-type bridge capable of collecting liquid contaminants such as oil flowing from a vehicle, thereby preventing the oil and the like from being discharged to the river together with the abrasion.

According to a preferred embodiment of the present invention to solve the above problems, there is provided a bridge structure comprising: an upper connection pipe connected to a drain pipe provided in a drain port of a bridge; a purifier pipe extending from the upper connection pipe to remove non- And a lower connection pipe extending from an end of the purifier pipe and connected to the drain pipe, wherein the purifier pipe is composed of an extension portion formed to be outwardly inclined and a purifier drainage portion having a straight pipe shape, An outer tube extending perpendicularly from a lower end of the portion and having an intimate tubular shape; An inner pipe formed inside the outer tube and having a lower portion closed to form a settling portion and an upper portion opened to form an initial stormwater inlet and to remove nonpoint contamination from the stormwater flowing through the initial stormwater inlet; And a fine passage is formed between the outer pipe and the inner pipe. The apparatus for reducing nonpoint contamination for a pipe-type bridge is provided.

At this time, a dirt inflow prevention plate formed with an inclined inwardly inward and formed with a later-stage superior inflow hole may be installed inside a portion where the extension portion and the purifying drainage portion are connected.

In addition, a support base may be formed at a lower end of the dust inflow prevention plate, and an upper end of the inner tube may be provided with a support table corresponding to the support table, and the inner tube may be mounted on the support table. .

Further, a water flow induction pipe formed inwardly inclined may be further provided inside the portion where the upper connection pipe and the purifying pipe are connected. In this case, the late draft inflow hole formed in the dirt inflow preventing plate may be positioned outside the imaginary vertical line from the end to the bottom of the water flow induction pipe.

The cleaning unit may include a screw pipe spaced apart from the inner pipe so as to form a cleaning space between the inner pipe and the inner pipe. In the screw pipe, And a filter unit for filtering the sludge contained in the rainwater and an oil collecting unit for collecting the oil component contained in the rainwater, The pocket portion may be installed in sequence.

The present invention does not use a power source and does not incur little operation cost and has a simple structure and is free from the risk of occurrence of malfunction or malfunction. It can filter liquid phase contaminants such as oil as well as solid phase contaminants such as sludge, The efficiency of reduction is maximized and the inner pipe in which the above-mentioned sludge and oil are collected can be separated from the outer appearance and can easily be taken out to the outside of the drain hole, so that the inside is very easily cleaned, maintenance cost is reduced and durability is increased .

In addition, the present invention maximizes the filtering efficiency of the contaminants by lengthening the length of the filter portion through which the initial contaminant containing contaminants passes.

In addition, the present invention is not only easy to install in existing drain pipes but also symmetrically installed around the drain pipes, and has the same straight pipe shape as the drain pipes, so that the appearance is not hindered.

BRIEF DESCRIPTION OF DRAWINGS FIG. 1 is a cross-sectional view showing a conventional apparatus for reducing nonpoint contamination for bridges. FIG.
2 is a cross-sectional view of an apparatus for reducing non-point pollutants according to an exemplary embodiment of the present invention.
3 is an exploded perspective view for explaining an embodiment of the purifying drainage section constituting the present invention.
4 is an exploded perspective view of the oil pocket portion constituting the purge drainage portion.
5 is a cross-sectional view illustrating an embodiment in which an anti-stick member for reducing frictional force is installed in the present invention Incision perspective.
6 is a cross-sectional view of a state in which an inner tube having a cleaning part is separated from the outer appearance of the present invention.
FIG. 7 is a cross-sectional view illustrating the positional relationship of the late draft inflow hole and the water flow induction pipe in the present invention. FIG.
8 is a cross-sectional view illustrating a process of removing contaminants by the non-mucolytic water abatement apparatus of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, in order to obscure or obscure the technical idea of the present invention due to the detailed description of the known structure in describing the present invention, the description of the structure of the above known structure will be omitted.

2 is a cross-sectional view of an apparatus for reducing non-point pollutants according to an exemplary embodiment of the present invention.

As shown in FIG. 2, the apparatus for reducing non-point pollutants of the present invention comprises upper and lower connecting pipes 110 and 120 and a purifying pipe 200, and is installed at a middle portion of the drain pipes P1 and P2 provided in the drain pipe D, As shown in FIG.

That is, in the apparatus for reducing non-point pollutants of the present invention, the upper connection pipe 110 is connected to the drain pipe P1 at the upper portion and the lower connection pipe 120 is connected to the drain pipe P2 at the lower portion. So that contaminants accumulated on the packaging surface are filtered by the purifying pipe 200 and then discharged to the river or the like through the water pipe P2.

As described above, the purifier tube 200 that extends to the upper connection pipe 110 and removes the non-point pollutants in the initial storm is composed of the extension portion 200A and the purifier drainage portion 200B having the straight pipe shape.

The expansion unit 200A has a shape that is symmetrical with respect to the water pipes P1 and P2 while expanding the space so that the purified water drainage units 200B are formed together in an intimate shape, ). The extension portion 200A is formed to be outwardly inclined at the lower end of the upper connection pipe 110. [

FIG. 3 is an exploded perspective view for explaining an embodiment of the purge drainage section 200B, and FIG. 4 is a cutaway perspective view for explaining an oil pocket section 227, which is one of the elements constituting the purge drainage section 200B. to be.

The purge drainage section 200B is composed of an outer pipe 210 and an inner pipe 220 provided inside the outer pipe 210 and performing a purifying function.

The outer tube 210 forms an outer passage 230 between the outer tube 210 and the inner tube 220 and has a straight tube shape extending vertically at a lower end of the extension portion 200A. The inner pipe 220 is installed in such a manner that the inner pipe 220 is inserted into the outer pipe 210 in an open state, and is located in the center of the nonpoint pollutant reduction device.

The inner pipe 220 is made up of a sedimented portion 220A in which a lower portion is closed to accumulate sediments of particles having a specific gravity larger than that of water and a non-pointed contaminant such as an oil or the like having a specific gravity smaller than that of water And a cleaning unit 220B.

The cleaning part 220B includes a screw pipe 222 and a cleaning space part 223 formed between the inner surface of the inner pipe 220 and the screw pipe 222.

The screw pipe 222 has a built-in screw 222a so that the rainwater flowing through the initial stormwater inlet 221 formed by opening the upper portion of the inner pipe 220 passes through the screw pipe 222 .

The screw tube 222 is fixed to the inner surface of the inner tube 220 through a fixing table 228.

The vortex generated as described above pushes the initial rainwater upward to pass through the washing space section 223 so that the filter section 225 and the oil pocket section 227 provided in the washing space section 223 can prevent sludge and oil .

The filter unit 225 and the oil pocket unit 227 are formed on the lower part of the washing space 223 in the lower part of the washing space 223, The initial storm that has passed through the screw pipe 222 flows into the inlet 224 in the form of a vortex and passes through the filter unit 225 located at the top of the inlet 224 to remove the sludge of small particles And the oil component still contained in the storm that has passed through the filter unit 225 is collected by the oil pocket unit 227 positioned at the upper part due to the difference in specific gravity, And is discharged to the fine passage 230 formed between the outer tube 210 and the inner tube 220 through the fine holes 226 located at the lower portion of the pocket portion 227.

A separation membrane 227a is provided between the oil pocket portion 227 and the well hole 226 to prevent the oil collected in the oil pocket portion 227 from flowing out through the fine hole 226. [

The oil pocket portion 227 may further include an absorbent that absorbs oil.

Unlike the case of the non-point pollutant abatement apparatus of Fig. 1, in which the initial rainfall is made to pass through a thin-walled filter, the present invention differs from the first embodiment in that even in a narrow space such as a drain pipe, To pass through the sludge filter 225, thereby maximizing the filtering efficiency of the sludge.

The filter unit 225 of the present invention includes a pad type filter 225a, a bio-chip 225b filled in the lower part of the pad type filter 225a, And an escape-preventing wire net 225c for preventing the escape of the wire.

In this case, the bio-chip 225b may have a self-cleaning function, and may be made of synthetic resin or ceramics. The shape of the bio-chip 225b may be various. However, It is preferable that the particle size of the biochip 225b is minimized as long as there are many grooves formed and there is no fear of loss.

The specifications of the inner pipe 220 are designed on the basis of the expected initial raw water quantity. Therefore, when the inner pipe 220 is at the high water level, it is important that the subsequent late storm is scarcely contaminated or has a very low concentration so that the road surface of the bridge is not flooded through rapid drainage.

Therefore, when the rainwater in the inner pipe 220 reaches the full water level, the late storm water directly flows into the storm passage 230 for the outside of the inner pipe 220 and is discharged to the river or the like through the water pipe P2.

 However, dust and the like may be swept away even in the late storm. On the upper part of the storm passage 230, a dust inflow prevention plate 211 having a later-stage superior inflow hole 212 may be further installed.

The dust inflow prevention plate 211 may be formed in a horizontal plate-like shape, but it is preferable that the dust inflow prevention plate 211 is formed to be inwardly inclined from the inside of a portion where the expansion portion 200A and the purge drainage portion 200B are connected. The dust inflow prevention plate 211 having the shape of the latter allows the water to flow into the inner pipe 220 without being attached with waste such as vinyl while being advantageous to the flow of water.

So that the function of the dust inflow prevention plate 211 is further improved so that the waste such as vinyl can be slipped down more easily. An anti-adhesion member 214 may be further provided on the upper surface of the dust entry preventing plate 211 to reduce frictional force. Fig. 5 illustrates one embodiment in which such an attachment prevention piece 214 is installed.

6 is a cross-sectional view showing a state in which the inner tube 220 is separated from the outer tube 210. FIG.

The inner pipe 220 is preferably separated from the outer pipe 210 so that the inner pipe 220 is simple to install and easy to clean the dirt accumulated in the inner pipe 220.

6, by simply inserting the inner tube 220 into the outer tube 210, the installation is completed. On the contrary, by having a mounting structure that allows the inner tube 220 to be easily taken out from the outer tube 210 Maintenance of the non-point pollution abatement apparatus can be facilitated.

In the embodiment of the present invention, a support rod 213 is formed at the lower end of the dust entry preventing plate 211, and a cradle 221a corresponding to the support rod 213 is provided at the upper end of the inner pipe 220 . In addition, a support protrusion 215 may be further formed on the inner surface of the outer tube 210 so that the lower end of the inner tube 220 extends.

In the installation structure of the inner pipe 220, since the inner pipe 220 is mounted on the support 213 to complete the installation, it is very easy to install and remove the inner pipe 220 from the outer pipe 210. At this time, a deaerating knob 229 may be further installed at the upper end of the inner pipe 220.

On the other hand, when there is not a sufficient amount of the initial stormwater, the rainwater flows down the inner surface of the drain pipe P1 and the upper connection pipe 110. However, the rainwater flowing down the inner surface of the pipe of the upper connection pipe 110 or the like can not flow into the early storm inflow port 221, but may flow into the latter storm inflow hole 212, There is a concern.

In order to solve this problem, a water flow induction pipe 240 formed at an inclined inward direction may be installed inside the connection portion between the upper connection pipe 110 and the purifying pipe 200.

The water flow guide pipe 240 can prevent the rainwater flowing on the inner surface of the upper connection pipe 110 from flowing to the inner surface of the expansion part 200A and the inner pipe 220 is located at the end of the water flow guide pipe 240 Thereby causing it to fall toward the initial storm inlet 221.

Therefore, the length of the water flow guide pipe 240 protruding from the outer pipe 210 of the water drainage pipe 200B does not cause a problem of drainage of the rainwater, It is required to be at least enough to flow into the early storm inflow port 221 without flowing into the latter storm inflow hole 212 and to be able to flow into the second storm inflow hole 221 formed at least in the dust inflow preventing plate 211, (212) is preferably located on the outer side of the imaginary vertical line (o) from the end of the water flow induction pipe (240) to the bottom.

The structure of the apparatus for reducing non-point pollutants according to the present invention has been described above. FIG. 8 is a graph showing the structure of the apparatus for reducing non-point pollutants according to the present invention. .

As shown in FIG. 8 (a), for the initial rainwater having a high contamination concentration, the rainwater flowing into the initial rainwater inflow opening 221 passes through the screw pipe 222, 222a through the inflow portion 224 of the washing space portion 223 to the filter portion 225. As a result, Of course, the lower part of the sedimentary part 220A is in a state of being filled with the heavy sediment, and heavy contaminants are precipitated in the sedimentary part 220A.

The initial storm that has been transferred to the inflow section 224 passes through the filter section 225 to filter out the particulate sludge and then is discharged toward the fine passage 230 through the fine holes 226. Due to the difference in specific gravity, The contaminants of the oil component located in the oil pocket portion 227 are collected.

When the overflow to the inner pipe 220 occurs due to the continuation of the rainfall, the rainwater at this time corresponds to the latter rainwater having a low contamination concentration. 212 to be discharged toward the stor- age passage 230 in a short period of time.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the scope of the invention is not limited to the disclosed embodiments, but, on the contrary, It is obvious that it will be possible to carry out various modifications thereof. It is therefore intended that such modifications are within the scope of the invention as set forth in the claims.

110; Upper connector 120; Lower connector
200; A purifying pipe 200A; Expansion portion
200B; A purge drainage section 210; Exterior
211; Dust entry preventing plate 212; Late superior inflow ball
213; Support 214; The anti-
215; A support protrusion 220; shell
220A; A settling portion 220B; The cleaning unit
221; An initial rainfall inlet 221a; holder
222; A screw tube 222a; screw
223; A cleaning space portion 224; The inlet
225; A filter portion 225a; Pad type filter
225b; A biochip 225c; Escape prevention wire mesh
226; Excellent ball 227; Oil pocket part
227a; Separator 228; Fixture
229; Handle 230; With a good trail
240; Water flow guide tube

Claims (10)

1. A non-point pollutant reduction device connected in a manner to be inserted in the middle of drain pipes (P1, P2) provided in a drain (D) of a bridge,
A purifying pipe 200 extending to the upper connecting pipe 110 to remove non-point pollutants in the initial pouring; a purifying pipe 200 extending to the end of the purifying pipe 200; And a lower connection pipe 120 connected to the drain pipe P2.
The purifier 200 includes an extension portion 200A formed to be outwardly inclined and a purge drainage portion 200B having a straight pipe shape,
The purge drainage unit 200B includes an outer pipe 210 extending vertically from a lower end of the expansion unit 200A and having a straight pipe shape; The lower part of the outer tube 210 is closed so that the lower part 220A is formed and the upper part of the outer tube 210 is opened to form an initial storm inflow port 221, And a cleaning unit 220B for removing non-point contaminants from the inner pipe 220,
A dirt inflow preventing plate 211 is formed inside the connecting portion of the expansion unit 200A and the purge drainage unit 200B so as to be inclined inwardly and formed with a back side inflow hole 212 therein,
An excellent passage 230 is formed between the outer tube 210 and the inner tube 220. An initial outer tube that has flowed into the inner tube 220 passes through the washing portion 220B of the inner tube 220, (226) for discharging the unburnt contaminants to the tank (230). delete The method according to claim 1,
A support base 213 is formed on the lower end of the dust inflow prevention plate 211. A support base 221a corresponding to the support base 213 is provided at the upper end of the inner pipe 220, 213), whereby the installation is completed. The method according to claim 1,
Wherein a water flow induction pipe (240) formed in an inclined inward direction is installed inside a portion where the upper connection pipe (110) and the purifying pipe (200) are connected. 5. The method of claim 4,
Wherein the late draft inflow hole 212 formed in the dirt inflow preventing plate 211 is positioned outside the imaginary vertical line from the end of the water flow induction pipe 240 to the lower side thereof. Device. The method according to claim 1,
Wherein the inner surface of the outer pipe (210) is provided with a support protrusion (215) for the lower end of the inner pipe (220) to span. The method according to claim 1,
The cleaning unit 220B is configured to be provided with a screw tube 222 spaced apart from the inner surface of the inner tube 220 so as to form a cleaning space 223, And a screw (222a) for forming a vortex while passing through the stormwater introduced through the initial stormwater inlet (221) is built in. 8. The method of claim 7,
The washing space portion 223 is provided with an inlet portion 224 for guiding storm that has passed through the screw pipe 222 and a filter portion 225 for filtering the sludge contained in the stormwater, And an oil pocket portion (227) for collecting the contained oil components are sequentially installed from the bottom. 9. The method of claim 8,
The filter unit 225 includes a pad type filter 225a, a bio-chip 225b to be filled in the lower part of the pad type filter 225a and an escape prevention wire net 225c to prevent the bio- Wherein the non-point pollutant reduction device is a tubular type bridge. The method according to claim 1,
And a handle (229) is provided at an upper end of the inner pipe (220).

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