KR100673536B1 - Storm water treatment device - Google Patents

Abstract

The present invention is to provide a storm water treatment apparatus for separating the pollutants from the rainwater discharged to the river and the like through the sewage pipe. The present invention has the effect of effectively preventing water pollution by employing a boiling point separation method with water through inducing eddy phenomenon to separate the contaminants from the rainwater flowing through the sewer pipe and to filter and discharge them to the stream.

Initial excellent, sewer pipe, water pollution, eddy, vortex, filtering

Description

Rainwater Treatment System {Apparatus for treating rainwater}

1 is a view schematically showing the installation state of the stormwater treatment apparatus according to the present invention,

2 is a cross-sectional view showing a stormwater treatment apparatus according to the present invention,

3 is a plan view schematically showing a stormwater treatment apparatus according to the present invention,

Figure 4 is a perspective view of the storm eddy tube in the stormwater processing apparatus according to the present invention,

5 is a perspective view showing a screen in the storm water treatment apparatus according to the present invention,

6A to 6D are diagrams showing the use condition of the storm water treatment system according to the present invention.

<Description of the symbols for the main parts of the drawings>

10: body 11: hollow interior

11a: 1st room 11b: 2nd room

12: Cover 13: water pipe

14: drain pipe 15: separation wall

15a: step 20: excellent eddy tube

21: Once opened 22: Hole

30: Screen 31: Perforated tube

32a, 32b: Perforated plate 40: Excellent induction pipe

50: protrusion 60: pipe for monitoring and cleaning amount of deposit

70: oil measuring instrument

The present invention relates to a rainwater treatment device installed in the middle of the sewage pipe, and more particularly to a rainwater treatment device for separating contaminants from the rainwater discharged through the sewage pipe.

Generally, the initial rainwater contains pollutants in the air and dirt from the commercial, industrial, residential and road surfaces, dust, oil or grease, soil, sand, etc. It is well known that water is flowing into the water, and it is obvious that water quality such as rivers is contaminated by this pollutant.

For this reason, the existing preparatory waterway with pollutants by installing vegetation waterways, vegetation filtration units, and stormwater penetration facilities including the minimization of impervious areas, dual purpose reservoirs, ponds, artificial wetlands, filtration facilities, and oil and water separation devices, etc. Water pollution, such as rivers, is prevented. However, most of these facilities occupy a small area and belong to the type of oil / water separator installed underground, which is excellent for removing suspended solids and sediment, but effective for removing dissolved substances. There is a disadvantage that it is not large, it is excellent in the treatment of rainwater with a high initial pollution concentration, but if the amount of rainwater is increased, it is difficult to effectively prevent water pollution such as rivers because it discharges the diluted rainwater as it is.

 Therefore, the present invention has been made to solve the above problems, the object of the present invention is to discharge the rainwater through the process of separating and filtering the contaminants in the boiling point separation method rainwater treatment apparatus to prevent water pollution such as rivers To provide.

In order to achieve the above object, the present invention forms an empty hollow structure so that only the upper surface having a cover in the middle of the sewer pipe is exposed, and inside the first and second accommodations by separating the hollow inside up and down two times. A manhole type body having a dividing wall for dividing into a chamber and a wall having an inlet and drain pipe for contacting the first accommodation chamber and a sewer pipe; One end is formed in a cylindrical shape having an open length, and the opened end is installed in a partition wall adjacent to the water inlet pipe with a plurality of holes in the outer circumference so that the open end faces the first accommodation chamber and the length is located in the second accommodation chamber. A rainwater eddy tube that separates the pollutants by boiling by vortexing rainwater having contaminants introduced into the second accommodation chamber through the first accommodation chamber; And a second shaped accommodating tube supported by an excellent induction pipe that surrounds a cylindrical I tube having an open end and an annular perforated plate provided at an outer periphery of both ends of the porous tube. Installed in a partition wall adjacent to the drain pipe so as to be located in the chamber, filtering the rainwater from which the pollutant discharged from the second accommodation chamber to the drain pipe through the rainwater induction pipe is separated and It is characterized by including a screen to keep the equilibrium.

In this structure, the screen is preferably installed on the separation wall such that the upper end of the porous pipe is exposed to a predetermined length to the first receiving chamber so that the rainwater from which the pollutant is separated is discharged through the porous pipe.

In addition, the separation wall is preferably stepped in the middle so that the rainwater discharged from the screen does not flow back to the rainwater eddy pipe.

In addition, the dividing wall adjacent to the water inlet pipe induces rainwater from the water inlet pipe to the storm duct pipe, and when the amount of rainwater flowing in greatly increases, a part of the bank for overpassing the storm duct pipe ( It is preferable that weir) protrusions are further formed.

In addition, the separation wall is further provided with a pipe for monitoring the deposition amount of the contaminants in the second chamber and to clean the deposited contaminants, and an oil meter for measuring the amount of oil-separated oil deposition. It is preferable to install more.

The above objects, advantages and other features will become apparent from the following description with reference to the accompanying drawings.

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

1 is a view schematically showing the installation state of the stormwater treatment apparatus according to the present invention, Figure 2 is a cross-sectional view showing a stormwater treatment apparatus according to the present invention, Figure 3 is a plan view schematically showing a stormwater treatment apparatus according to the present invention, Figure 4 is a perspective view showing an excellent eddy tube in the stormwater treatment apparatus according to the present invention, Figure 5 is a perspective view showing a screen in the stormwater treatment apparatus according to the present invention, Figures 6a to 6d is a state of use of the stormwater treatment apparatus according to the present invention The figure shown.

As shown in the figure, the storm water treatment apparatus according to the present invention is installed in the middle of the sewage pipe (P) to collect rainwater to discharge to the river or the like. Rainwater treatment device according to the invention is preferably installed in the middle of the sewage pipe (P) adjacent to the river, etc., is embedded in the middle of the sewage pipe (P) through the manhole-shaped body (10). The body 10 is buried so that only the upper surface having a cover 12 to form a hollow hollow structure 11 is exposed to the outside, through the inlet and drain pipes (13, 14) installed on the wall (S) Buried in contact with. The hollow interior 11 of the body 10 is divided into two vertically into the first and second accommodation chambers 11a and 11b through the separation wall 15, and the first accommodation chamber 11a enters the mouth. It is in contact with the sewer pipe (P) through contact with the drain pipe (13,14).

The body 10 is accessible through the cover 12 to be opened and closed, although not shown, it can be easily installed by installing a lifting facility such as a ladder therein. The body 10 is preferably made of a material such as concrete, glass fiber, FRP, stainless, etc., and may be manufactured in a circular or square shape so as to generate high maintenance and treatment efficiency while being suitable for site conditions.

The body 10 is provided with an excellent eddy tube 20. The excellent eddy tube 20 has a cylindrical shape having a length at which one end is opened. The excellent eddy tube 20 has a partition wall adjacent to the water inlet pipe 13 such that the open end 21 faces the first accommodation chamber 11a and the length thereof is located in the second accommodation chamber 11b. 15) is installed. A plurality of holes 22 are formed on the outer circumferential surface of the excellent eddy tube 20, and preferably, the holes 22 are formed to follow the circumferential line of the second accommodation chamber 11b.

Therefore, the rainwater having contaminants from the open end 21 of the water inlet pipe 13, the first accommodation chamber 11a and the rainwater eddy pipe 20 and the sewage pipe P flowing into the length is Vortex vortices along the circumference of the second accommodation chamber (11b) through the holes 22 of the excellent eddy pipe 20, thereby causing a eddy phenomenon. This eddy phenomenon causes the pollutants having a greater specific gravity than water among the pollutants, for example, soil, sand, heavy metals (zinc, copper, lead, cadmium, etc.) to settle to the bottom of the second accommodation chamber (11b), specific gravity than water This small contaminant, such as dust, oil or grease, floats above the surface of the water. As a result, the storm eddy tube 20 vortexes the rainwater flowing into the second accommodation chamber 11b so that the storm flow occurs. On the other hand, since the holes 22 of the storm duct 20 are formed to be below the normal water level of the second accommodation chamber 11b, relocation of the contaminants suspended through the holes 22 and their Backflow is prevented.

Rainwater in which contaminants are separated in this manner is discharged through the screen 30. The screen 30 is shaped like a "I" through a cylindrical porous tube 31 having both ends opened and annular porous plates 32a and 32b provided at outer peripheries of both ends of the porous tube 31, respectively. Is fulfilling. The screen 30 of this structure is supported by the drain pipe 14 adjacent to the drain pipe 14 so as to be located in the second accommodation chamber 11b while being supported by the rainwater guide pipe 40 having both ends surrounding the periphery thereof. Separately installed, the porous plate 32a installed on the upper end of the porous pipe 31 is installed to be the same surface as the separation wall (15).

The screen 30 is led to the rainwater induction pipe 40 due to the water head difference through the first receiving chamber 11a and the drain pipe 14 between the porous plates 32a and 32b, and the sewer pipe P. The pollutants discharged to the filter filter out the solid matter contained therein without being separated from the separated rainwater, and when the amount of rainwater flowing into the second accommodation chamber 11b through the storm storm pipe 20 is increased, Part of the amount in the separated state is to be discharged through the porous pipe 31 to maintain the equilibrium of the excellent water intake amount to the second accommodation chamber (11b).

That is, when the amount of rainwater flowing into the second accommodation chamber 11b is greater than the discharge of rainwater discharged between the porous plates 32a and 32b, most of the rainwater flows into the rainwater discharge pipe 20. Since the perforated pipe 31 can be bypassed to the drain pipe 14 without causing the amount of rainwater flowing into the second accommodation chamber 11b to increase, the part of the porous pipe 31 is discharged to the second accommodation chamber. Equilibrium of the stormwater runoff for (11b) ensures a very efficient treatment of pollutants for stormwater.

The screen 30 is the separation wall so that the upper end of the porous pipe 31 is exposed to the first accommodation chamber (11a) a predetermined length so that the rainwater is separated from the pollutants through the porous pipe (31) ( It is good to be installed in 15). This is to ensure that the rainwater having the largest concentration of the contaminants separated from the second storage chamber 11b is discharged stably between the porous plates 32a and 32b without being discharged through the porous pipe 31. This is to effectively filter the intrinsic solid matter. Accordingly, the screen 30 can more effectively prevent water pollution such as rivers by filtering the solid matter inherent from the rainwater from which the pollutants are separated.

In addition, the middle of the separation wall 15 may be formed to have a step 15a so that the rainwater filtered by the screen 30 does not flow back into the storm circumference pipe 20 through the separation wall 15. .

In addition, when the rainwater from the inlet pipe 13 is stably guided to the rainwater duct tube 20 and the amount of rainwater flowing in the partition wall 15 adjacent to the inlet pipe 13 increases, the partial amount thereof. It is preferable that a weir-shaped protrusion 50 for bypassing the storm duct 20 from the storm pipe 20 to the drain pipe 14 is formed. To this end, the protrusion 50 is preferably formed to protrude to the separation wall 15 in an arc shape surrounding the open one end 21 of the excellent eddy tube 20.

Therefore, when the rainwater that is greater than the design value of the stormwater treatment device according to the present invention flows into the inlet pipe 13 through the sewer pipe P, the protrusion 50 overflows a partial amount and is discharged to the drain pipe 14. The remaining amount is led to the second chamber 11b to separate the contaminants, and then the porous tube 31 and the porous plates 32a and 32b of the screen 30 having the function as described above. Minimize water pollution by discharging through the water and equilibrate the water inflow and outflow to the second accommodation chamber (11b) with the porous pipe (31) to re-suspend the separated pollutants, that is, sediments and suspended solids. Or countercurrent flows and concomitant spills with rainwater. For this reason, even when a large rainwater exceeding a design value flows into the rainwater treatment system according to the present invention, the pollutant having a large concentration of the contamination separated from the initial rainwater may be transferred to the second accommodation chamber 11b through the porous pipe 31 and the protrusion 50. You can stay stable at).

In addition, the separation wall 15 is provided with a pipe 60 for monitoring the deposition amount of the contaminant on the second storage chamber 11b and cleaning the deposited contaminant, and stacking the oil-separated oil. It is preferable that an oil meter 70 for measuring the quantity is provided.

The contaminants separated in the second accommodation chamber (11b) can be removed through the pipe 60, and after separating the screen 30 from the rainwater induction pipe 40, a pressure-suction suction pipe such as rainwater dredging pump car It may be inserted and removed.

Hereinafter, a description will be given with reference to FIGS. 6A to 6D attached to a state of use of the storm water treatment apparatus according to the present invention having such a structure.

As shown in Fig. 6A, in a state where the stormwater treatment apparatus according to the present invention is buried in the middle of the sewer pipe P, the sewage pipe P is provided through the inlet pipe 13 as shown in Fig. 6B. When the initial rainwater having the pollutant having a large pollutant concentration flows into the one storage chamber 11a, the initial rainwater flows to the storm duct 20 under the guidance of the protrusion 50. The initial rainwater flowing into the storm duct tube 20 flows into the second accommodation chamber 11b through the holes 22 of the storm duct tube 20 and vortex so as to generate a eddy phenomenon.

In this way, when the initial rainwater is vortexed by the excellent eddy tube 20 and flows into the second accommodation chamber 11b, the pollutant is separated from the initial rainwater by the boiling point during the vortex. That is, contaminants having a greater specific gravity than water settle to the bottom of the second accommodation chamber 11b, and contaminants having a specific gravity smaller than the water rise above the water surface. The water surface is formed above the storm duct 20 and contaminants having a smaller specific gravity than water rise above the water surface. It can be seen that the holes 22 of the even eddy tube 20 lie beneath this water surface.

As described above, the initial excellent water flowing into the second storage chamber 11b and the pollutants separated therebetween passes between the porous plates 32a and 32b of the screen 30 under the guidance of the rainwater guide pipe 40. 1 is discharged to the river through the sewage pipe (P) through the storage chamber (11a) and the drain pipe (14), the solid material that is not separated during this process and inherent in the initial excellent water passes through the porous plates (32a, 32b) Is filtered. Usually, the rainfall of the initial rainwater flowing through the sewer pipe (P) is small, so that the surface of the water through the porous pipe 31 of the screen 30 while the initial rainwater separated from the contaminants passes between the porous plates 32a and 32b. Parallel to the porous plate 31a installed on the top of the.

In this state, as shown in FIG. 6C, the amount of rainwater flowing into the second accommodation chamber 11b is increased (at this time, the amount of rainwater flowing into the inlet pipe 13 through the sewer pipe P is a protrusion 50. When the water level of the second accommodation chamber (11b) rises, the rainwater from which contaminants are separated by the storm duct 20 is formed from the porous pipe 31 of the screen 30. It is discharged through the porous plates (32a, 32b), through which the water inflow and outflow of the rainwater to the second accommodation chamber (11b) is in parallel, eventually increased rainwater overflows the protrusion (50) It is not bypassed through the drain pipe (14). Therefore, since the rainwater having an increased rainfall after the initial rainwater is discharged to the river in the state in which the pollutant is separated through the screen 30, water pollution such as the river is significantly prevented.

As shown in FIG. 6D, when rainwater flows into the first accommodation chamber 11a through the inlet pipe 13 in a state where the rainfall is greatly increased due to heavy rain or the like, some rainwater may cause the protrusion 50 to fall. The overflow pipe is discharged to the drain pipe 14 and the rainwater of the remainder flows into the second accommodation chamber 11b through the storm storm pipe 20, and then the contaminant is separated from the porous pipe of the screen 30. Since water is discharged between the 31 and the porous plates 32a and 32b, water pollution such as rivers is significantly prevented.

As described above, the present invention adopts a boiling point separation method with water through inducing eddy phenomenon to separate pollutants from rainwater flowing from sewage pipes and filter them and discharge them to rivers to effectively prevent water pollution. have.

Claims (5)

The hollow structure of the inside is embedded so that only the upper surface having a cover in the middle of the sewage pipe is exposed, and inside the partition wall for dividing the hollow inside up and down and partitioning into the first and second accommodation rooms, The wall body has a manhole-type body installed in each of the inlet and drainage pipe for contacting the first chamber and the sewer pipe; One end is formed in a cylindrical shape having an open length, and the opened end is installed in a partition wall adjacent to the water inlet pipe with a plurality of holes in the outer circumference so that the open end faces the first accommodation chamber and the length is located in the second accommodation chamber. A rainwater eddy tube that separates the pollutants by boiling by vortexing rainwater having contaminants introduced into the second accommodation chamber through the first accommodation chamber; And The second accommodation chamber is supported by an excellent induction pipe that forms a “I” shape having a cylindrical porous tube having open ends at both ends and annular porous plates respectively provided at the outer periphery of both ends of the porous tube. Installed in the separation wall adjacent to the drain pipe so as to be located in the second pipe, the rainwater discharged from the second chamber through the rain pipe to the drain pipe is separated from the rainwater to the second A stormwater treatment device comprising a screen to maintain equilibrium. The storm water treatment system according to claim 1, wherein the screen is installed on the separation wall such that the upper end of the porous pipe is exposed to the first accommodation chamber so that the rainwater from which the pollutant is separated is discharged through the porous pipe. Device. The storm water treatment value according to claim 1, wherein the dividing wall is stepped so that rainwater discharged from the screen does not flow back to the storm storm pipe. The bank of claim 1, wherein the dividing wall adjacent to the water inlet pipe leads the rainwater from the water pipe to the storm duct tube, and when the amount of rainwater increases, a part of the bank overflows to bypass the storm duct tube. (weir) type storm treatment device, characterized in that further formed. 5. The dividing wall according to any one of claims 1 to 4, wherein the dividing wall further includes a pipe for monitoring the amount of contaminant deposited on the second accommodation chamber and cleaning the deposited contaminant. And an oil measuring device for measuring the amount of stacked oils.

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