KR20230168671A - Rainwater Cycle System of Low Impact Development(LID) Facilities - Google Patents

Abstract

The present invention relates to a rainwater circulation system for low-impact development facilities that can restore urban water circulation, provide ecological habitats, alleviate the heat island phenomenon, and improve urban landscape by circulating rainwater using low-impact development facilities. Specifically, It is formed on the road and moving parts that move rainwater. It is formed on the boundary between the sidewalk and the road and on the other side of the boundary. It is formed on the sidewalk and is formed on the vegetation and vegetation where plants grow, and rainwater It is provided with a filtering unit that filters.

Description

Rainwater Cycle System of Low Impact Development (LID) Facilities}

The present invention relates to a rainwater circulation system for low-impact development facilities that can restore urban water circulation, provide ecological habitats, alleviate the heat island phenomenon, and improve urban scenery by circulating rainwater using low-impact development facilities.

Patent Document 001 is a LID facility management system using heavy water, including a soil sensor that measures the moisture content of the soil in the LID facility; and a gray water discharge pipe that discharges gray water from the building, supplying gray water discharged from the gray water discharge pipe to the LID facility according to the water content of the soil measured by the soil sensor, and collecting rainwater from the ground to the LID facility. It further includes a rainwater supply pipe for supplying rainwater, and when the water content of the soil measured by the soil sensor is less than the preset value, the gray water is supplied to the LID facility, and the water content of the soil measured by the soil sensor is set to the preset value. If the value is higher than this value, the gray water is discharged to an external water pipe, and the gray water discharge pipe branches into a first pipe connected to the LID facility and a second pipe connected to the external water pipe, and to control the moving direction of the gray water. A valve installed in the discharge pipe; and a control unit connected to the soil sensor to control the valve according to the water content of the soil measured by the soil sensor.

Patent Document 002 states that the backflow prevention device is inserted into the infiltration hole of the rainwater infiltration facility and includes a tubular body formed in a tubular shape with the upper and lower ends open; a top cap coupled to the top opening of the tubular body and allowing the inflow of rainfall runoff water and preventing the inflow of soil or relatively large debris; a bottom cap coupled to the bottom opening of the tubular body and allowing passage of stormwater runoff and disallowing reverse inflow of soil from underground; A technology is proposed that includes a floating valve cone that is installed inside the tubular body so that it can be raised and lowered by buoyancy and its own weight, and blocks the inflow of groundwater when it rises.

Patent document 003 is a rainwater inflow part that is buried in a state exposed from the ground of the road and where rainwater flows in and is purified, a first reservoir in which rainwater flowing in through the rainwater inflow part is temporarily stored, and A second reservoir where rainwater flows in and is stored, a pre-treatment filtration unit installed between the first reservoir and the second reservoir to reduce contamination of rainwater, and a maintenance control unit installed close to the second reservoir. It proposes a technology that includes an inspection unit that helps recycle rainwater or directs its discharge into sewer pipes.

Patented invention 004 is installed at the lower part of the parking lot, the upper surface and the upper and lower surfaces are open, and the filter unit is equipped with a filter material inside; A reservoir coupled to the outside of the filter unit, having open upper and lower surfaces, and having a U-shaped planting space on the upper surface, wherein the planting space is provided with a rainwater inlet through which rainwater flows in and a vegetation portion composed of soil and plants; and an infiltration portion provided on the outside of the reservoir, wherein the upper surfaces of the filter portion, the reservoir, the vegetation portion, and the infiltration portion are inclined downward in an outward direction, and the rainwater inlet is higher than the outside of the vegetation portion and is located inside the rainwater inlet. Lower, the rainwater that falls from the parking lot flows sequentially through the filter unit, the vegetation unit, and the infiltration unit, and the contaminants contained therein are first filtered in the filter unit, and the rainwater is supplied to the filter unit. The rainwater that overflows after being saturated is secondary filtered in the vegetation section, the rainwater that overflows the vegetation section infiltrates underground through the infiltration section, and the rainwater that overflows due to saturation of the infiltration section or delay in infiltration is stored in the rainwater inlet through the rainwater inlet. It presents technology that is leaking into wealth.

KR 10-2373104 B1 (March 7, 2022) KR 10-1547900 B1 (August 21, 2015) KR 10-2050045 B1 (November 22, 2019) KR 10-1639377 B1 (July 7, 2016)

The present invention relates to a rainwater circulation system for low-impact development facilities that can restore urban water circulation, provide ecological habitats, alleviate the heat island phenomenon, and improve urban scenery by circulating rainwater using low-impact development facilities.

It is intended to solve the problems of prior inventions, and the present invention relates to a rainwater circulation system for low-impact development facilities, including a moving part 100 formed on a road 10 to move rainwater; A boundary portion 200 formed on the moving portion 100 and bordering the sidewalk 20 and the road 10; A vegetation section 300 formed on the other side of the boundary section 200 and on the sidewalk 20 where plants grow; It is formed in the vegetation part 300 and is comprised of a filtering part 400 that filters rainwater.

The present invention relates to a rainwater circulation system for low-impact development facilities, and includes the moving part 100 presented above; border (200); Vegetation Department (300); The invention consists of a filtering unit 400; a water permeable layer 110 formed on the moving unit 100 and permeating rainwater; A guide groove 120 is formed in the water permeable layer 110 and guides rainwater to the boundary portion 200.

The present invention relates to a rainwater circulation system for low-impact development facilities, and includes the moving part 100 presented above; border (200); Vegetation Department (300); The invention consists of a filtering unit (400); an enclosure (210) formed on the border unit (200) and fixed to one side of the sidewalk (20); An inflow space 220 is formed inside the enclosure 210 and allows rainwater to flow in.

The present invention relates to a rainwater circulation system for low-impact development facilities, and includes the moving part 100 presented above; border (200); Vegetation Department (300); The invention consists of a filtering unit 400; an inlet 211 formed in the housing 210 and through which rainwater moving from the moving unit 100 flows; an outlet 212 formed on the other side of the inlet 211 and discharging rainwater inside the enclosure 210 to the vegetation part 300; A grating 213 is formed at the inlet 211 and the outlet 212 and prevents the inflow of foreign substances.

The present invention relates to a rainwater circulation system for low-impact development facilities, and includes the moving part 100 presented above; border (200); Vegetation Department (300); A filtering member 221 that fills the inlet space 220 and removes foreign substances moving inside the enclosure 210 is added to the invention consisting of the filtering unit 400.

The present invention relates to a rainwater circulation system for low-impact development facilities, and includes the moving part 100 presented above; border (200); Vegetation Department (300); An opening and closing cover 214 formed on the upper part of the enclosure 210 and opened and closed to exchange and remove foreign substances and the filtering member 221 is added to the invention consisting of the filtering unit 400.

The present invention relates to a rainwater circulation system for low-impact development facilities, and includes the moving part 100 presented above; border (200); Vegetation Department (300); The invention consists of a filtering unit 400; a vegetation case 310 formed in the vegetation unit 300 and containing plants and soil; An opening and closing device 320 that opens and closes at the bottom of the vegetation case 310 and controls the discharge of rainwater is added.

The present invention relates to a rainwater circulation system for low-impact development facilities, and includes the moving part 100 presented above; border (200); Vegetation Department (300); The invention consists of a filtering unit 400; a separation plate 321 formed on the opening and closing device 320 and preventing discharge of soil and sand; A blocking plate 322 is formed at the bottom of the separation plate 321 and blocks the discharge of rainwater by opening and closing horizontally.

The present invention relates to a rainwater circulation system for low-impact development facilities, and includes the moving part 100 presented above; border (200); Vegetation Department (300); The invention consists of a filtering unit 400; a measuring sensor 311 formed in the vegetation case 310 and measuring the amount of rainwater; A control device 312 that is linked with the measurement sensor 311 and controls the opening and closing of the blocking plate 322 according to the amount of rainwater is added.

The present invention relates to a rainwater circulation system for low-impact development facilities, and includes the moving part 100 presented above; border (200); Vegetation Department (300); The invention consists of a filtering unit 400; a filtering media layer 410 formed in the filtering unit 400 and filtering non-point pollutants; A planting soil layer 420 formed at the bottom of the filter media layer 410 and on which plants are fixed; A crushed stone layer 430 is formed at the bottom of the planting soil layer 420 and discharges rainwater.

The present invention can effectively grow plants by transferring rainwater from the road to the vegetation area.

The present invention can block the inflow of foreign substances as rainwater flows into the interior of the border.

The present invention can remove non-point pollutants by permeating rainwater into the soil where plants grow.

The present invention can block foreign substances from flowing into the vegetation area by forming a filtration member inside the border area.

1 is a conceptual diagram of a rainwater circulation system of a low-impact development facility of the present invention.
Figure 2 is a cross-sectional view of the rainwater circulation system of the low-impact development facility of the present invention.
Figure 3 is a plan view of the rainwater circulation system of the low-impact development facility of the present invention.
Figure 4 is a cross-sectional view of the boundary portion of the present invention.
Figure 5 is a perspective view showing the assembly of a plurality of boundary portions of the present invention.

Hereinafter, the most preferred embodiments of the present invention will be described in detail in order to enable those skilled in the art to easily practice the present invention.

Numbers cited in the examples below are not limited to the objects of citation and can be applied to all examples. An object that has the same purpose and effect as the configuration presented in the examples is an equivalent replacement object. The high-level concept presented in the examples includes low-level concept objects that are not described.

Figure 1 is a conceptual diagram of a rainwater circulation system of a low-impact development facility of the present invention.

As shown in FIG. 1, the present invention relates to a rainwater circulation system for a road 10 utilizing low impact development (LID) according to an embodiment of the present invention. In general, a low-impact development facility (LID) is a facility that receives rainwater and manages and utilizes the rainwater by injecting it inside. Low-impact development (LID) facilities can have water circulation functions, environmental functions to reduce non-point pollutants, water resource security functions, and ecological functions.

Additionally, low-impact development (LID) facilities can be classified into vegetation retention type, infiltration type, filtration type, and wetland type depending on their main function. The vegetation retention type is a facility that allows rainwater to flow into a space covered with vegetation to achieve the effects of retention, filtration, sedimentation, and infiltration. The infiltration type is a facility that allows rainwater to infiltrate underground through unsaturated strata to achieve the effects of filtration and adsorption. The filtration type is a facility that obtains the filtration effect through filter media such as sand and soil. The wetland type is effective in water circulation through retention and evapotranspiration and is a facility that uses plants and microorganisms as a pollutant reduction mechanism.

Specifically, low-impact development facilities (LID) are of the vegetation retention type, such as bioretention basins, bio swales, and planter boxes, and of the infiltration type, such as infiltration trenches and vegetation slopes. (Bioslope), permeable pavement, etc., as filtration types, tree box filters, sand filters, etc., as wetland types, artificial wetlands, roads (10), small wetlands for roadside use, Rain Garden ( rain garden), etc.

The rainwater circulation system of the low-impact development facility (LID) of the present invention is a vegetation retention type that supplies rainwater flowing in from the road 10 to vegetation, and rainwater delivered to an existing sewer is filtered and used for vegetation.

At this time, the rainwater circulation system of the low-impact development facility (LID) is formed on the road 10 and a moving part 100 that moves rainwater, and is formed on the sidewalk 20 and the road 10. It is formed on the border 200 and the other side of the border 200, and is formed on the sidewalk 20 and the vegetation area 300 where plants grow, and a filtration unit that filters rainwater ( 400).

The moving unit 100 consists of a road 10 and a shoulder, and forms the road 10 diagonally so that rainwater moves to the shoulder of the road 10. At this time, the moving part 100 is formed with a permeable layer 110 to allow rainwater to permeate into the interior of the road 10, and the permeable layer 110 is formed with a guide groove 120 to guide rainwater to the boundary part 200. The guide groove 120 is formed in the width direction of the road 10, and is formed at equal intervals to guide rainwater to the shoulder. The guide groove 120 extends from the surface of the road 10 to the water permeable layer 110. It is formed by extending. In addition, the permeable layer 110 is formed to prevent rainwater from flowing into the ground, which can prevent the ground from weakening as rainwater flows into the road 10, causing sinkholes, etc.

In addition, the shoulder formed on the moving unit 100 is formed between the boundary unit 200 and the road 10, and the shoulder is formed by adjusting the angle so that rainwater moves toward the boundary unit 200. In addition, the present invention can prevent foreign substances such as trash from flowing directly into the sewer as rainwater flowing into the shoulder does not flow into the drainage ditch of the road 10 but flows into the border 200.

Referring to FIGS. 4 and 5, the boundary portion 200 is formed on one side of the moving unit 100 and is formed of a boundary stone bordering the sidewalk 20 and the road 10, and the boundary portion 200 is formed on the road 10. ) to prevent rainwater from flowing into the sidewalk (20) (10). And the boundary portion 200 is formed by an enclosure 210 fixed to one side of the sidewalk 20, and the inside of the enclosure 210 is open to form an inflow space 220, and the inflow space 220 is a boundary portion. As it is formed to penetrate (200), rainwater moves inside the boundary portion (200).

And the enclosure 210 is formed of a boundary stone, and an inlet 211 is formed so that rainwater moving from the moving unit 100 flows into the inlet space 220. A grating 213 is formed at the inlet 211 to prevent foreign substances such as trash and fallen leaves from entering, and the inlet 211 is preferably formed at a location that does not coincide with the vegetation portion 300. This is to prevent foreign substances flowing in with rainwater through the inlet 211 from being directly transferred to the vegetation unit 300. In addition, the enclosure 210 is formed with an inlet 211 and an outlet 212 on the other side, and the outlet 212 is formed at a position in contact with the vegetation part 300, so that rainwater delivered through the inlet space 220 flows into the vegetation. It is discharged into section 300. The outlet 212 also has a grating 213 formed in the same way as the outlet, and prevents foreign substances and soil from flowing into the enclosure 210 through the outlet 212.

In addition, a filtration member 221 is formed in the inflow space 220 formed inside the enclosure 210, and the filtration member 221 is formed of crushed stone, honeycomb-shaped synthetic resin, etc., so that foreign substances enter the inflow space 220. This inflow can be prevented. At this time, the filtering member 221 forms a gap at a position where it contacts each other to allow rainwater to flow into the vegetation part 300, and the filtering member 221 opens and closes the opening and closing cover 214 formed on the upper part of the enclosure 210. As time goes by, exchange and cleaning can be carried out. And the opening/closing cover 214 is formed by being fastened to the upper part of the case 210 with fixing hardware, etc., and the fixing hardware is formed by being inserted into the inside of the case 210.

In addition, insertion protrusions and insertion grooves are formed on both ends of the enclosure 210, which is intended to ensure that the enclosure 210 is closely coupled to each other. In addition, sealing members are formed at both ends of the enclosure 210 to prevent rainwater flowing into the inflow space 220 of the enclosure 210 from escaping.

Figure 2 is a cross-sectional view of the rainwater circulation system of the low-impact development facility of the present invention, and Figure 3 is a plan view of the rainwater circulation system of the low-impact development facility of the present invention.

As shown in Figures 2 and 3, the vegetation part 300 according to an embodiment of the present invention is where plants and soil grow. This vegetation section 300 is opened and closed at the bottom of the vegetation case 310 and the vegetation case 310 in which plants and soil are accommodated, and is provided with an opening and closing device 320 that controls the discharge of rainwater.

And the vegetation case 310 is made of concrete and can be manufactured in a factory or installed on site. The vegetation case 310 extends downward, and rainwater flows in from the border 200 or the sidewalk 20. At this time, the vegetation case 310 is for removing non-point pollutants in rainwater, and as rainwater grows plants and is filtered, only clean rainwater can be discharged into the sewer. Additionally, a vegetation space in which plants grow is formed inside the vegetation case 310, and a filtration unit 400 that filters non-point pollutants in rainwater is formed in the vegetation space. The filter unit 400 is formed with a filter media layer 410 that filters non-point pollutants, is formed at the bottom of the filter media layer 410, and a planting soil layer 420 on which plants are fixed is formed. And at the bottom of the planting soil layer 420, a crushed stone layer 430 is formed through which rainwater is discharged to the outside. The filter media layer 410 filters non-point pollutants from rainwater falling to the bottom. By using zeolite or activated carbon, which has high adsorption properties for fine particles, the filter media can effectively adsorb and remove non-point pollutants.

In addition, since the filter medium needs to be replaced after being used for a certain period of time, it is preferable that the filter medium layer 410 fills a mesh-shaped filter frame with the filter medium so that the filter medium can be replaced with the filter frame intact.

The planting soil layer 420 is formed of soil in which plants take root, and the planting soil layer 420 can support plant growth by filtered rainwater. In addition, the crushed stone layer 430 is a biofilm that decomposes and removes non-point pollutants mixed in rainwater. The biofilm adsorbs, decomposes, and removes various organic substances, dissolved substances, and bacteria mixed in rainwater, thereby improving environmentally friendly water quality. You lose.

In this way, a drain is formed at the bottom of the vegetation case 310 where the filtering unit 400 is formed, and an opening and closing device 320 is formed in the drain through which the filtered rainwater is discharged. The opening and closing device 320 is opened and closed manually or by power. The opening and closing device 320 is formed with a mesh-shaped separation plate 321 that prevents the discharge of soil and sand, and is opened and closed horizontally at the bottom of the separation plate 321. Accordingly, a blocking plate 322 is formed to block the discharge of rainwater.

At this time, the blocking plate 322 is formed as a moving plate that moves by a tooth-shaped gear formed inside the vegetation case 310, and the gear rotates by power or by rotating a wire, etc. outside the vegetation case 310. The blocking plate 322 can be moved by rotating it accordingly. And the vegetation case 310 is formed with a measuring sensor 311 that measures the amount of rainwater, and the measuring sensor 311 is a control device 312 that controls the opening and closing of the blocking plate 322 as it measures the amount of rainwater. is formed. The control device 312 automatically opens and closes the blocking plate 322. If the moisture required for plant growth is insufficient, the control device 312 closes the drain with the blocking plate 322 and allows rainwater to flow inside the vegetation case 310. Make sure it is stored in . And when there is a lot of rainwater flowing in, the blocking plate 322 is opened to facilitate drainage of rainwater.

In this way, as non-point pollutants in rainwater are removed and drained, the inflow of foreign substances is prevented and plant growth is effectively enabled. Various effects can be expected, such as restoring the urban water cycle, providing ecological habitat, alleviating the heat island phenomenon, and improving the urban landscape. .

In the above, the rainwater circulation system of a low-impact development facility according to an embodiment of the present invention has been described, but the spirit of the present invention is not limited to the embodiments presented in this specification. Additionally, a person skilled in the art who understands the spirit of the present invention will be able to easily suggest other embodiments by adding, changing, deleting, or adding components within the scope of the same spirit, but this is also within the scope of the present invention. They will say it costs money.

10: road 20: sidewalk
100: moving part 110: permeable layer
120: guidance groove 200: border
210: enclosure 211: inlet
212: outlet 213: grating
214: Opening/closing cover 220: Inflow space
221: Filtration member 300: Vegetation part
310: Vegetation case 311: Measurement sensor
312: Control device 320: Switching device
321: separation plate 322: blocking plate
400: filtration unit 410: filter layer
420: planting soil layer 430: crushed stone layer

Claims (10)

A moving unit 100 formed on the road 10 to move rainwater;
A boundary portion 200 formed on the moving portion 100 and bordering the sidewalk 20 and the road 10;
A vegetation section 300 formed on the other side of the boundary section 200 and on the sidewalk 20 where plants grow;
A rainwater circulation system for a low-impact development facility comprising a filtration unit 400 formed in the vegetation unit 300 and filtering rainwater.
In claim 1,
A permeable layer 110 formed on the moving part 100 and permeating rainwater;
A rainwater circulation system for a low-impact development facility comprising a guide groove (120) formed in the water permeable layer (110) and guiding rainwater to the boundary portion (200).
In claim 1,
An enclosure 210 formed on the border 200 and fixed to one side of the sidewalk 20;
A rainwater circulation system for a low-impact development facility comprising an inlet space 220 formed inside the enclosure 210 and into which rainwater flows.
In claim 3,
An inlet 211 formed in the enclosure 210 through which rainwater moving from the moving unit 100 flows in;
an outlet 212 formed on the other side of the inlet 211 and discharging rainwater inside the enclosure 210 to the vegetation part 300;
A rainwater circulation system for a low-impact development facility comprising a grating (213) formed at the inlet (211) and the outlet (212) to prevent the inflow of foreign substances.
In claim 3,
A rainwater circulation system for a low-impact development facility that includes a filtration member (221) that is filled in the inlet space (220) and removes foreign substances moving inside the enclosure (210).
In claim 5,
A rainwater circulation system for a low-impact development facility comprising an opening and closing cover 214 formed on the upper part of the enclosure 210 and opened and closed to exchange and remove foreign substances and the filtering member 221.
In claim 1,
A vegetation case 310 formed in the vegetation portion 300 and accommodating plants and soil;
A rainwater circulation system for a low-impact development facility that includes an opening and closing device (320) that opens and closes at the bottom of the vegetation case (310) and controls the discharge of rainwater.
In claim 7,
A separation plate 321 formed on the opening and closing device 320 to prevent discharge of soil and sand;
A rainwater circulation system for a low-impact development facility including a blocking plate 322 that is formed at the bottom of the separation plate 321 and blocks the discharge of rainwater by opening and closing horizontally.
In claim 7,
A measurement sensor 311 formed in the vegetation case 310 and measuring the amount of rainwater;
A control device 312 that is linked to the measurement sensor 311 and controls the opening and closing of the blocking plate 322 according to the amount of rainwater. A rainwater circulation system for a low-impact development facility including a.
In claim 1,
A filter media layer 410 formed in the filter unit 400 and filters non-point pollutants;
A planting soil layer 420 formed at the bottom of the filter media layer 410 and on which plants are fixed;
A rainwater circulation system for a low-impact development facility comprising a crushed stone layer (430) formed at the bottom of the planting soil layer (420) and through which rainwater is discharged.