KR100885534B1 - Stormwater Reduction Facility - Google Patents

Abstract

The present invention relates to a stormwater runoff reduction facility, which quickly treats pollutants such as roads and reduces stormwater runoff loads to prevent flooding and flooding by preventing rainwater pumping stations and sewage treatment plant loads. The purpose of this is to control rainwater discharge according to the flow rate.

Rainfall runoff reduction facility according to the present invention, buried in the edge of the road or road and box-shaped rainwater storage unit 10 for storing rainwater therein; A rain gutter 20 which is installed at regular intervals to allow fluid communication with the rainwater storage unit and guides the inflow of rainwater flowing along the road or road; It is connected through the rain gutter and the connection pipe 30 includes a rainwater box 40 for storing the rainwater flowing into the rain gutter, the rain gutter is formed in the upper portion and communicating with the rainwater storage portion in the circumference Rain gutter body 21 is provided with one or more rectifying holes (21a) is formed in the first outlet hole (21b) that is connected to the pipe of the rain box on one side, the grating is installed in the upper opening of the rain gutter body (22), a baffle (23) formed of a plate shape having a overflow portion and a second outflow hole (23a) having a smaller size than the first outflow hole, and is erected at regular intervals from the first outflow hole in the rain gutter body (23). The valve means 24 selectively opens and closes the second outlet hole of the baffle to guide the rainwater to be discharged through the first outlet hole through or turning the second outlet hole.

Description

Rainwater Runoff Reduction Facility {RAIN WATER REDUCING EQUIPMENT}

The present invention relates to a stormwater runoff reduction facility, and more particularly, to a stormwater runoff reduction facility capable of preventing flooding and flooding by reducing stormwater runoff loads to reduce rainwater pumping stations and sewage treatment plant loads.

Pollutants in urban streams can be classified into point sources and nonpoint sources.

The point source has been shown to reduce the pollutant load in large part due to the maintenance of sewage pipes and the advanced treatment of sewage treatment plants. However, the management of point source only has limitations in reducing the pollutant load of the stream and improving the water quality of the stream, and it is necessary to reduce the pollutant load of non-point source so that the water quality and water ecosystem of the city can be preserved and restored. Non-point sources in urban areas vary, including land, roads, and roofs of buildings, but the largest loads are non-point sources on road surfaces. This is because dust, oil, and heavy metals and tire wear caused by roads are discharged in the form of spills due to the initial rainfall during rainfall. This increases the pollutant load of the sewage treatment plant, overflows from the insufficient sewage pipe to the nearby stream, and directly causes a fatal effect on the river ecosystem, causing fish to die.

In addition, the urban area has a shorter rainfall runoff time due to pavement by the impermeable layer, and the extent and frequency of the habitual flooding zone is increasing due to local guerrilla heavy rain caused by climate change. However, it is not a feasible alternative to increase the sewage capacity for temporary guerrilla heavy rains or to expand the reservoir, as well as the difficulty of securing available land.

Both non-point source problems due to early rainfall and immersion due to guerrilla heavy rain both result from rainfall runoff. The difference is that the nonpoint source is a problem at the beginning of rainfall, and the problem of inundation is that the peak rainfall in which the rainfall is intensified in earnest and the time when rainfall spilled after peak rainfall is collected downstream.

Rainwater abatement facilities are classified into an initial good storage type and a peak load storage type depending on the structure of the valve facility.

The initial rainwater-type stormwater runoff reduction facility directly flows rainwater collected by rain gutters into the storage tank, and when the water level of the reservoir is full, it flows out to the storm drainage pipe buried in the middle of the road. To this end, a valve is installed in the connection pipe from the rain gutter to the conduit and normally closed so that the initial rainwater flows directly into the storage tank during rainfall, and the valve is opened in the Cheongcheon and discharged through the conduit.

Peak load storage type stormwater runoff reduction facility directly drains rainwater from the rainwater drain through the sewer conduit pipe and prevents part of the inlet diameter of the connection pipe so that the rainfall of strong rainfall intensity flows over to the storage facility. It is a feature of the set.

The principle of operation of stormwater abatement facilities is as follows.

1. Excellent excellent storage type stormwater discharge control device

end. Classification sewerage area

The initial excellent stormwater runoff reduction facility can be maximized when installed on roads with classified sewer pipes. Non-point pollutants caused by the initial rainwater on the road surface discharged to the river in rainy weather are stored in the stormwater discharge reduction facility, and then discharged through the sewage pipe in Cheongcheon-si to be discharged after treatment in the sewage treatment plant. When the rain tank is full, the pollutants on the road surface have already been removed, so the clean rainfall runoff is discharged to the storm drain in the middle of the road and discharged into public waters.

I. Combined Sewer Area

The installation of the initial excellent stormwater runoff reduction facility on the road where the combined sewage pipe is installed can discharge the stored initial rainwater to Cheoncheon-si and transfer it to the sewage treatment plant, thereby reducing the load of the sewage treatment plant during rainfall.

2. Peak load storage type storm drain

It is installed for the purpose of reducing the peak rainfall runoff load of sewage pipes in guerrilla heavy rains, and acts as the same mechanism in the combined and classified areas. As the diameter of the inlet of the connection pipe from the rain gutter to the sewer pipe is reduced to a certain section, the rainfall runoff of initial rainfall intensity is directly discharged, but the runoff of peak load rainfall intensity is increased so that the water level in the rain gutter increases, which is excellent. It is stored in the storage tank of the spill reduction facility. If the water level in the reservoir is full, it will flow out into the sewer pipe through a large overflow pipe. When the rainfall intensity is weakened, the rainfall runoff stored in the reservoir flows into the rain gutter by its own water level and the slope of the reservoir and is discharged through the connecting pipe to the sewer pipe.

On the other hand, in order to prevent flooding, it is effective to reduce impermeable layers of roads or roads, or to install reservoirs such as reservoirs, but there are very limited areas where permeable pavement can be applied, and there are many negative views on the effects. In addition, according to the plan of use and development of the site, which is becoming increasingly dense, it is a reality to secure an appropriate reservoir or even convert the existing reservoir into other uses.

The present invention is to solve the above problems, install rainwater storage unit near the roadside or roadbed to store the rainfall of low intensity in rainwater box through rain gutter, rainwater runoff generated during high-intensity rainfall is rainwater storage unit The purpose is to provide a stormwater runoff reduction facility that prevents flooding and flooding by reducing the load of rainwater pumping stations and sewage treatment plants, and controls the flow rate according to the flow rate of rainwater inlet.

Rainfall outflow reduction facility according to the present invention for achieving the object as described above, the box-type rainwater storage unit buried at the edge of the road or road and stores rainwater therein; A rain gutter for guiding the inflow of rainwater flowing along the road or the road and installed at regular intervals in fluid communication with the rainwater storage unit; The rain gutter is connected to the rain gutter through a connection pipe and includes a rainwater box for storing rainwater introduced into the rain gutter, wherein the rain gutter is formed with an upper portion and has at least one rectifying hole communicating with the rainwater storage unit. And a rain gutter main body having a first outlet hole formed at one side of the connection pipe of the rainwater box, a grating installed at an upper opening of the rain gutter main body, a second flow hole having a smaller size than the overflow portion and the first outlet hole. The baffle, which is made up of a plate shape having a predetermined interval from the first outlet hole in the rain gutter body, is selectively opened and closed by the second outlet hole of the baffle, and the rainwater passes through or turns to the second outlet hole. It is composed of a valve means for guiding to be discharged through the first outlet hole to be used for the peak load storage type rainwater discharge control device It features.

In addition, the present invention is characterized in that it comprises a siphon pipe for discharging the water stored in the rain gutters by the siphon principle.

The present invention is characterized in that it is configured to open and close the second outflow hole by a manual operation of the manager is used for the initial excellent storage type rainwater discharge control device.

According to the rainwater discharge reduction facility according to the present invention, the rainwater is stored in the rainwater storage unit to reduce the rainwater discharge load can reduce the load of rainwater pumping station and sewage treatment plant to prevent flooding and flooding.

In addition, the pollutants on the road surface and the like can be quickly and treated on the road surface, etc. to keep the road clean.

In addition, the valve is automatically opened and closed according to the amount of rainwater stored in the rain gutter so that it is possible to store rainwater and discharge rainwater without performing a separate manual operation, thereby improving rain reduction efficiency.

In addition, the rainwater is automatically discharged through the siphon tube can store and discharge the appropriate amount of rainwater can increase the rainwater reduction efficiency.

In addition, the second outlet hole is automatically opened and closed by the buoyancy of the buoy to be used as the peak load storage type excellent drainage control device, and the opening and closing plate is operated by artificially operating the lifting rod. Since it can be, utility can be improved.

<Example 1>

As shown in Figures 1 to 3, the storm runoff reduction facility according to the present embodiment, the rainwater storage unit 10 is buried at the edge of the road or road and stored in the rain; A rain gutter 20 which is installed at a predetermined interval to allow fluid communication to the rainwater storage unit 10 and guides the inflow of rainwater flowing along the road or road; It is connected to the rain gutter 20 and the connection pipe 30 is configured to include a rainwater box 40 for storing the rainwater flowing into the rain gutter 20.

Rainfall storage unit 10 is to temporarily store the rainwater flowing through the rain gutter 20, is a box-shaped storage unit formed of concrete, metal or synthetic resin and sealed on all sides so as to safe the vehicle load, Units of concrete box can be configured to be connected in series.

Rainwater storage unit 10 is interposed between the rain gutter 20 spaced apart from each other at a certain distance from each other by temporarily storing the rain from the rain gutter 20 (or only one side, rain gutter 20) If there is only one side, only one side) is in communication with the rectifying hole 21a described later of the rain gutter 20.

Rainfall storage unit 10 may be formed to be inclined toward the rain gutter 20 side so that the stored water discharged to the rain gutter 20 more effectively and rainwater does not remain.

In the inner space of the rainwater storage unit 10 may be provided with a plurality of braces disposed vertically to increase the load bearing degree of the rainwater storage unit 10 with respect to the load applied to the road or road.

Rain box 40 is disposed in the underground space of the road or road center, such rain box 40 is disposed lower than the bottom of the side opening or rain gutter 20 is rain gutter 20 or rainwater storage unit 10 ) Is discharged into the river by water pressure or gravity action.

Rainfall box 40 is in communication with the rain gutter 20 through the connection pipe 30, the excellent odor of the connection pipe 30 so that odor due to rainwater stored in the rain box 40 does not flow back to the rain gutter 20 side. At the end of the box 40 side, a trap 31 is formed to allow a certain amount of rainwater to be locked.

The trap 31 is connected to the rain box 40 in parallel with the end portion is bent toward the rain gutter 20 toward the upper side, the trap portion 31 is excellent at the same water level as the rain box 40 As a result, the odor is prevented from flowing back to the rain gutter 20 by rainwater in the trap 31.

The connection pipe 30 may be inclined in the forward direction with respect to the traveling direction of the rainwater flowing through the rainwater box 40.

Rain gutter 20 is a box shape of the upper opening is made of concrete, PE and the like is installed between the rain storage unit 10.

As shown in FIG. 4, the rain gutter 20 has a box-shaped rain gutter body 21 into which rainwater flows in and out, a grating 22 installed in an upper opening of the rain gutter body 21, and an inside of the gutter body 21. By opening and closing the baffle 23 to be divided and the second outlet hole 23a (refer to FIGS. 5 and 6) formed in the baffle 23, the rainwater passes through or pivots through the second outlet hole 23a of the baffle 23. It consists of a valve means 24 for discharging.

Rain gutter body 21 is a box-shaped upper portion is open to rainwater flows into the rainwater storage unit 10, one or more rectifying holes (21a) to guide the rainwater to the first outflow to the first box 40 The ball 21b is provided.

Rain gutter main body 21 does not flow stones of a size larger than the hole of the grating 22 by the grating 22, but foreign matters (tree branches, etc.) having a size smaller than the hole of the grating 22 is introduced, foreign matter Silver will accumulate on the bottom of the rain gutter main body 21, and a sludge collector 21c in the form of a groove may be formed on the bottom of the rain gutter main body 21 to facilitate cleaning of foreign matter accumulated in the bottom.

The baffle 23 is a plate-like structure having a second outlet hole 23a smaller than the first outlet hole 21b, and is set to be spaced apart from the first outlet hole 21b by a predetermined distance in the rain gutter body 21. . The baffle 23 allows the rainwater to be discharged to the first outlet hole 21b via the second outlet hole 23a or to be discharged directly to the first outlet hole 21b without passing through the second outlet hole 23a. To this end, the overflow portion 23b (see Figs. 5 and 6) is formed.

Rainwater will only flow into the baffle 23 through the grating 22, and the overflow 23b is formed on top of the baffle 23, for example.

The valve means 24 opens or closes the second outlet hole 23a according to the flow rate of the rainwater flowing into the rain gutter body 21 using buoyancy so that the rainwater is discharged after passing through the second outlet hole 23a. To turn the second outlet hole (23a) to be discharged through the first outlet hole (21b).

As shown in FIGS. 5 and 6, the valve means 24 includes a buckle 24a that moves up and down according to the rainwater level stored in the rain gutter body 21, and a lifting bar 24b that transmits the lift of the buckle 24a. And the opening and closing rod 24c and the opening and closing plate 24d that rotates by the opening and closing rod 24c to open and close the second outlet hole 23a.

The floats 24a are hollow inside and filled with air to float on the surface of the rainwater stored in the rain gutter body 21. That is, it rises or falls according to the change of the water level of rainwater.

The lifting bar 24b and the opening / closing rod 24c open and close the opening / closing plate 24d by changing the position according to the lifting and lowering of the float 24a.

The lifting bar 24b is fixed to the buckle 24a to move up and down with the buckle 24a. In order to smoothly operate the lifting bar 24b, a lifting path of the lifting bar 24b may be provided with a rail.

The opening / closing rod 24c is rotatably connected to the baffle 23 via the hinge at its center, and both sides thereof are fixed to the lifting bar 24b and the opening / closing plate 24d, respectively.

The valve means 24 of such a structure is protected by the cover 24e (shown in FIG. 4) in order to prevent malfunction by the excellent hydraulic pressure or foreign matter. Of course, the cover 24e has a structure in which rainwater can flow into the inside of the buckle 24a, for example, a plurality of holes are formed or the bottom is open.

The baffle 23 may be formed integrally with the rain gutter main body 21 or may be manufactured in a single piece and detachably mounted through the fastener. That is, in the case of a single product it can be easily applied by mounting on the existing rain gutter facility.

The operation of the storm runoff reduction facility according to the present embodiment configured as described above is as follows.

The following description of the operation will be described taking the example used as a peak load storage stormwater discharge facility.

Rainwater, such as road surface, flows into the rain gutter 20 through the grating 22, and precisely flows only into the baffle 23 inside.

As shown in FIG. 5, when the amount of rainwater flowing into the rain gutter 20 is small, the buckle 24a is disposed below, and the second outlet hole 23a is opened by the opening and closing plate 24d. Therefore, the rainwater flowing into the rain gutter 20 flows to the rainwater box 40 through the first outflow hole 21b after passing through the second outflow hole 23a.

Rainwater is stored and flows to the rainwater box 40 through the connection pipe 30, some rainwater is left in the trap portion 31 of the connection pipe 30 so that the odor is beyond the trap portion 31 rain gutter (20) Will not flow back to the

Rainwater will be filled from the bottom of the rain gutter 20, the greater the amount of rainwater will increase the ball 24a according to the level of rainwater.

The lifting bar 24b together with the buckle 24a will rise, and the lifting bar 24b will be converted to the rotational movement of the opening and closing rod 24c so that the opening and closing plate 24d rotates with the opening and closing rod 24c. The second outflow hole 23a is gradually blocked.

As shown in FIG. 6, when the second outlet hole 23a is closed, rainwater is continuously stored in the baffle 23, and some rainwater flows to the rainwater storage unit 10 through the rectifying hole 21a to rainwater storage. Stored in 10.

When the rainwater is filled up to the height of the overflow portion 23b, the raindrop falls over the baffle 23 through the overflow portion 23b to the first outlet hole 21b and then through the first outlet hole 21b. Discharged to 40.

When rainwater is discharged by this method and the water level is lowered, the floats 24a are lowered, and the lowering of the floats 24a is lowered by the elevating rod 24b-rotation of the opening / closing rod 24c-opening and closing plate ( The second outlet hole 23a is gradually opened by switching to the rotation of 24d), and when the second outlet hole 23a is opened, the rainwater passes through the second outlet hole 23a without passing through the overflow 23b. It is discharged to the first outlet hole 21b.

On the other hand, foreign matter introduced with rainwater will be collected in the sludge collection unit 21c formed at the bottom of the rain gutter main body 21, the manager removes the sludge collected in the sludge collection unit 21c rain gutter 20 Can be cleaned.

<Example 2>

As shown in FIG. 7, the rainwater discharge reduction facility according to the present embodiment is configured to discharge rainwater using a siphon principle.

Siphon pipe 50 is the inlet is close to the bottom side of the rain gutter 20 in order to discharge the rainwater stored in the rain gutter 20 and the outlet will be communicated to the connecting pipe 30 beyond the baffle 23, The baffle 23 may be fastened through holes or fixtures in which the siphon tube 50 is supported. Provided that the inlet is located where the outlet is high.

According to this embodiment, the rainwater stored in the rain gutter 20 is introduced through the inlet of the siphon pipe 50 by the pressure inside the rain gutter 20 and then flows along the siphon pipe 50 to connect the pipe 30. ) Is discharged and always discharges at a certain level or more irrespective of the operation of the valve means (24).

<Example 3>

As shown in FIG. 8, the stormwater discharge reduction facility according to the present embodiment is used as an initial excellent storage type stormwater discharge reduction facility.

In other words, the initial excellent rainfall-type excellent runoff reduction facility normally closes the second outlet hole 23a and opens the second outlet hole 23a only when cleaning, and opening and closing of the second outlet hole 23a is independent of the water level. For this reason, the opening and closing plate 24d is artificially opened and closed.

Manual lifting tool 25 is formed in the lifting bar 24b or the float 24a so that an administrator can work on the ground.

Although the manual control tool 25 may be operated by a manager's operation without using a separate tool, the manual control tool 25 may be easily operated even when it is far from the manager. Wire 26 or the like for maintaining the operating state may be connected.

That is, by connecting one side of the wire 26 to the manual operation tool 25 and hanging the other side by grating 22 or the like, it is possible to set the opening and closing plate 24d at a desired position. The method of operating the manual override tool 25 is not limited to the wire 26, and all that can operate the manual override tool 25 can be used.

This embodiment is applicable to both Example 1 and Example 2.

1 is a plan view of the storm water discharge reduction facility according to a first embodiment of the present invention.

Figure 2 is a side cross-sectional view of the storm runoff reduction facility according to a first embodiment of the present invention.

Figure 3 is a front sectional view of the storm runoff reduction facility according to a first embodiment of the present invention.

Figure 4 is an exploded perspective view of the rain gutters applied to the storm runoff reduction facility according to a first embodiment of the present invention.

Figure 5 and Figure 6 is an operational state diagram of the rain gutters applied to the storm runoff reduction facility according to the first embodiment of the present invention, respectively.

Figure 7 is an exploded perspective view of the main parts extract of the storm water discharge reduction facility according to a second embodiment of the present invention.

8 is a cross-sectional view of the storm runoff reduction facility according to a third embodiment of the present invention.

<Description of Signs for Main Parts of Drawings>

10: rainwater storage unit, 20: rain gutter

21: rain gutter body, 21b: the first outflow hole

22: grating, 23: baffle

23a: second outlet hole, 24: valve means

24a: float, 24b: lifting rod

24c: opening and closing rod, 24d: opening and closing plate

25: manual control unit, 30: connector

40: excellent box, 50: siphon tube

Claims (9)

A box-type rainwater storage unit 10 embedded in an edge of a road or road and storing rainwater therein; A rain gutter 20 which is installed at regular intervals to allow fluid communication with the rainwater storage unit and guides the inflow of rainwater flowing along the road or road; It is connected through the rain gutter and the connection pipe 30 includes a rain box 40 for storing rainwater flowing into the rain gutter, The rain gutter is provided with one or more rectifying holes 21a having an upper portion formed therein and communicating with the rainwater storage unit at a circumference thereof, and having a first outlet hole 21b having a pipe connected to the rainwater box on one side thereof. Formed rain gutter body 21, the grating 22 is installed in the upper opening of the rain gutter body, the overflow portion 23b and the plate-like having a second outlet hole (23a) smaller than the first outlet hole. Selectively opening and closing the baffle 23, which is erected at a predetermined interval from the first outlet hole, and the second outlet hole of the baffle in the rain gutter main body, and the rainwater passes through or turns to the second outlet hole. 1 includes a valve means 24 for guiding discharge through the outlet, The valve means, the buckle 24a to rise and fall according to the rain water level stored in the rain gutter main body, a transmission means for transmitting the lifting of the float, receiving the lifting force of the float through the transmission means the second It includes an opening and closing plate 24d for opening and closing the outflow hole,  The transmission means is connected to the buckle lifting bar (24b) to move up and down with the ball, both sides are rotatably coupled between the two sides while the lifting rod and the opening and closing plate is hinged to the baffle to lift the lifting bar Rainfall reduction facility characterized in that it comprises an opening and closing rod (24c) for opening and closing the opening and closing plate while rotating under the guidance of the hinge according to. 2. The siphon tube 50 of claim 1, further comprising a siphon tube 50, the inlet of which is close to the bottom side of the rain gutter body and the outlet of which communicates with the connecting pipe beyond the baffle to discharge rainwater in the rain gutter body. Excellent runoff reduction facility. delete delete The rainwater discharge reduction facility according to claim 1 or 2, further comprising a manual operation tool (25) connected to the buckle for manually operating the opening / closing rod, wherein the opening / closing plate is opened and closed manually. The storm water discharge reduction facility according to claim 5, further comprising a cover (24e) covering the valve means. The rainwater discharge reduction facility according to claim 6, wherein the baffle is detachably mounted to an inner surface of the rain gutter main body by a fastener. 8. The storm drain reduction facility according to claim 7, wherein at the storm box side end of the connection pipe, storm traps are stored at the same level as storm storms stored in the storm storm box to prevent backflow of odors. 10. The storm drain reduction facility according to claim 8, wherein a sludge collector 21c having a groove shape lower than that of the other sections is formed at the bottom of the rain gutter.

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