KR100869775B1 - Integrated hydrodynamic storm runoff treatment device - Google Patents

Abstract

An integrated processing device of a rain fall effluent is provided to classify rapidly floatability and particulate materials in the rain fall effluent with the centrifugal force of the water current by forming powerful spiral flow while the rain fall effluent is flowed into the inside of device, to block conveniently the floatability and particulate materials to be flowed out into a rainwater pipeline or river, and to classify easily particle solid materials by precipitating the materials while the rain fall effluent flowed into the device circles round and upturns. The integrated processing device(A) of the rain fall effluent comprises a main body(10) and a vortex tub(20). The main body is made of cylinder and has a cover(11) at the upper end of the main body and an overflow tank(12) at the exterior upper side of the main body. A overflow pipe(13) at the lower part of the overflow tank has a cut off wing(14) at the inner round of the lower side height of the overflow pipe, an inclined plate(15) including a through-hole(15a) and a projection groove(15b) at the inner side of the middle part, a floor inclined plate(16) having through-holes(16a) at the inner side of lower part, and a settling tank(17) between the inclined plate and the floor inclined plate. A vortex tub is made of cylinder and positioned at the inner side of the main body and has a screen(21) around the upper part, an inlet tube(22) at the exterior side of the middle part, a baffle(23) at the interior side of the lower part, and a tubular wing(24) at the exterior round of the lower part.

Description

Integrated hydrodynamic storm runoff treatment device

The present invention relates to a rainfall runoff treatment apparatus, and more particularly, floating and particulate matter contained in the rainfall runoff by centrifugal force of the water stream by allowing a strong swirl flow to be formed in the course of the rainfall runoff flow into the device. It is possible to quickly classify and to make it easy to screen the floating and particulate matter outflow to rain pipe or stream during the classification of floating and particulate matter through swirl flow, and to enter the device. The present invention relates to a composite rainfall runoff treatment apparatus for easily classifying by sedimentation of fine particle solids in a process of turning and upwardly flowing rainfall runoff.

Pollutants that cause water pollution are largely classified into point sources and nonpoint sources.

Point pollutants generated at specific places, such as wastewater discharge facilities, sewage generation facilities, and livestock farms, are easy to collect because they can be processed before causing water pollution.However, city, road, farmland, mountain, construction sites Non-point pollution sources, which occur in unspecified places, are difficult to collect, so they are mixed with rainfall runoff during rainy weather and are a major cause of river water quality pollution.

Therefore, in recent years, when a city or industrial complex of a certain size or more is created, the installation of rainfall runoff treatment facilities including a nonpoint source has become mandatory.

Rainfall runoff treatment facilities for treatment of rainfall runoff, including nonpoint sources, include natural facilities consisting of storage facilities, infiltration facilities, artificial wetlands, vegetation type facilities, and filtration type, vortex type, screen type, flocculation and sedimentation type, and biological type. It is divided into a device-type facility consisting of a treatment type, and a natural-type facility has a problem of inferior treatment efficiency compared to a large-scale facility.

On the other hand, in the device type facility, the filtration type filters out fine contaminants by the filter media, and shows a relatively high treatment efficiency, but there is a limitation in processing capacity and troublesome maintenance such as cleaning the filter media. The vortex type was able to classify suspended solids and particulate matter without force through physical action by using the flow of water, but there was a problem that the classification efficiency of fine particle solids was inferior. Not only was it a pre-treatment facility to remove, but there was a problem that the contaminants on the screen would impede water passage, while the flocculation / sedimentation type and biological treatment type had high treatment efficiency, but the processing flow was limited and the facility and operating costs were required. There was a problem that the economy is inferior.

Due to the problems of each existing device-type facility as described above, the industry proposes a combined type rainfall runoff treatment device using a filtration method, a vortex method and a precipitation method.

However, the conventional composite rainfall runoff treatment device has a problem that the structure is complicated and not easy to manufacture and install, and still has a problem that treatment efficiency does not meet expectations.

The present invention has been made in view of the above situation, by allowing the strong effluent flow to be formed in the course of the rainfall runoff is introduced into the device of the floating and particulate matter contained in the rainfall runoff by the centrifugal force of the water flow The classification can be made quickly, and the screen can easily block the flow of floating and particulate matter into storm pipes or streams during the classification of floating and particulate matter through swirl flow, It is an object of the present invention to provide a screen-type, vortex-type, and sedimentation-type mixed type rainfall runoff treatment apparatus that facilitates classification by precipitation of fine particle solids in the course of turning and upward rainfall.

Combined rainfall runoff water treatment apparatus according to the present invention for achieving the above object,

It is made of a cylindrical shape, the cover is freely separated and coupled to the top is provided, the overflow tank is formed on the outer surface of the upper one side is provided, the outlet pipe leading to the outside is provided on one side of the lower side of the overflow tank, the inner circumference of the outlet pipe bottom height In the lower portion is provided with a cutting wing that gradually decreases in diameter, and the inner side of the middle portion is gradually reduced in diameter toward the lower portion is formed with a through hole is formed in the center and the inclined plate provided with a radially projecting groove on the upper surface, the lower inner The main body is provided with a bottom inclined plate formed with a through hole in the center while gradually decreasing in diameter toward the center, and a precipitation tank provided between the inclined plate and the bottom inclined plate;

It is made of a cylindrical shape while being located inside the main body, and a water-permeable screen is provided around the upper end, and an inlet pipe having a rounded tip is formed on the outer surface of the middle through the main body and connected from the outside. The inclined baffle is provided radially, and the vortex-like provided with an enlarged wing that gradually increases in diameter while going downward toward the outer periphery of the lower end.

In the composite type rainfall runoff treatment apparatus according to the present invention, a vortex tank having a smaller diameter than the main body diameter is separately provided in the main body for the application of the vortex system, while an inlet pipe is provided in which the tip forms a round along the outer surface of the vortex tank. As a strong swirl flow is formed during the inflow of rainfall runoff, it is possible to quickly classify the floating and particulate matter contained in the rainfall runoff by centrifugal force of the water stream. It is provided with a screen that can pass through, so that floating and particulate matter classified through the swirl flow can be easily prevented from leaking into storm pipes or streams. Protruding groove is provided on the inclined plate The expansion wing is provided around the lower circumference of the vortex tank, so the rainfall flows into the main body by turning and upwards, and is classified by the sedimentation of the fine particle solids contained in the rainfall runoff through the blocking blades and the expansion wing and the protrusion groove of the inclined plate. It will be able to be made easily, it will be able to significantly increase the treatment efficiency of rainfall runoff.

Hereinafter, with reference to the accompanying drawings in more detail as follows.

1 is a perspective view showing the external appearance of the composite rainfall runoff treatment apparatus according to the present invention, Figure 2 is a front sectional view showing the internal structure of the composite rainfall runoff treatment apparatus according to the present invention, Figure 3 is a composite according to the present invention Figure 4 is a plan sectional view for explaining the structure of the main body in the method rainfall runoff water treatment apparatus, Figure 4 is a plan sectional view for explaining the structure of the inlet pipe of the vortex bath in the composite method rainfall runoff water treatment apparatus according to the present invention, Figure 5 FIG. 6 is an operational state diagram for explaining classification of suspended solids and particulate matter through the composite rainwater effluent treatment device, and FIG. 6 is an operational state diagram for explaining solid precipitation through the complex rainwater effluent treatment device according to the present invention.

As shown in Fig. 1 and 2, the composite type rainfall runoff treatment apparatus A according to the present invention includes a main body 10 and a vortex bath 20.

The main body 10 is made of a cylindrical shape, the cover 11 is provided with a freely separable coupling on the upper end, and the overflow tank 12 protruding to the outside on one side of the upper side is provided, the lower side of the overflow tank 12 Outflow pipe (13) is provided to lead to the outside, the inner side of the outlet pipe 13 is provided with a blocking wing (14) to gradually decrease in diameter while going down to the inner circumference of the bottom height, while the lower portion inside the middle portion As the diameter gradually decreases, the inclined plate 15 having the through hole 15a formed in the center portion and the radially protruding groove 15b formed on the upper surface thereof is provided. ) Is provided with a bottom inclined plate 16 is formed, the precipitation tank 17 is formed between the inclined plate 15 and the bottom inclined plate 16, the precipitation of the rainfall runoff and the precipitation of the fine particle solids. .

In the main body 10, the cover 11 is bolt 11a penetrating through the rim 10a around the top of the main body 10 from the upper edge of the cover 11 and nuts 11b coupled to the lower end of the bolt 11a. Separation and coupling is made by whether or not fastened, the outlet pipe 13 is the lower end is located on the same line as the bottom surface of the overflow tank 12, the outlet pipe 13 is provided in the overflow tank 12 As shown in FIG. 3, a slit 12a extending from the lower end of the outlet pipe 13 to the upper end of the main body 10 is formed, and a valve 16b that is manually opened and closed in the through hole 16a of the bottom slope plate 16 is provided. Prepared.

On the other hand, the protruding groove 15b of the inclined plate 15 has an opening 15c formed at one end that is relatively wider, and has an opening 15c formed at an upper surface of the inclined plate 15 so that one end of the inclined plate 15c faces downward. It is arranged radially.

The vortex tank 20 is located inside the main body 10, and is made of a cylindrical shape, and is provided with a water-permeable screen 21 around the upper end, and one side of the main body 10 on an outer surface of the middle one side. The inlet pipe 22 was formed to penetrate from the outside to form a rounded tip. A baffle 23, which is inclined around the inner circumferential surface of the lower end, is radially provided. Expanding wing 24 is provided to be large.

In such a vortex tank 20, the screen 21 may be any type of water permeable, but preferably has a mesh within a maximum of 10 mm so that sieving of floating and particulate matter may be achieved. 23 is projected to a width corresponding to 2-3% of the diameter of the vortex tank 20 to form an oblique inclination in the oblique direction, but the lower end is inclined in the turning direction of the rainfall outflow water turning in the vortex tank 20. Preferably, the tip of the inlet pipe 22 forms a round but preferably forms a round that continues from the outer surface of the vortex bath 20 as shown in FIG. 4.

Referring to the process of rainfall runoff water through the composite type rainfall runoff treatment apparatus (A) according to the present invention as described above in detail.

Rainfall outflow water containing a non-point pollution source during rain is introduced into the device A, in particular, the vortex tank 20 through the inlet pipe 22 of the vortex tank 20 penetrating one side of the main body 10.

In this case, the inflow pipe 22 of the vortex tank 20 is formed so that its tip forms a round from the outer surface of the vortex tank 20, so that the rainfall outflow water flowing through the inflow pipe 22 forms a curve and the vortex tank 20. It flows along the inner surface, the vortex tank 20 is made of a smaller diameter than the diameter of the main body 10 so that the rainfall runoff flowing along the inner surface of the vortex tank 20 is relatively strong compared to the direct flow into the main body 10 Since it is possible to form a swirl flow, rainfall runoff is treated by applying the vortex method.

When the rainfall runoff forms a swirl flow in the vortex bath 20 by the application of the vortex flow method, as shown in FIG. 5, the floating and particulate matter 30 included in the rainfall runoff may be decomposed by the centrifugal force of the water stream. The oily substance is divided into the central portion of the swirl flow and the particulate matter is collected at the edge of the swirl flow, and the rainfall runoff having the floating and particulate matter 30 sorted is turned and directed toward the bottom of the vortex bath 20.

After the treatment by the vortex system as described above, the rainfall runoff treatment apparatus (A) according to the present invention is treated by the precipitation method.

The vortex tank 20 is provided with a radially continuous baffle 23 on the inner circumferential surface of the lower end, and the expansion wing 24 is provided on the outer circumferential surface of the lower end so as to gradually increase in diameter. Rainfall runoff that turns downward from the turn is gradually weakened by the resistance caused by the baffle (23) and expansion by the expansion wing (24), the fine particles contained in the rainfall runoff from the bottom of the vortex tank (20) Precipitation of the solid 40 is made.

On the other hand, the precipitation of the fine particles solid 40 is made, and the rainfall outflow to the lower portion is upward by changing the flow by the inclined surface of the inclined plate 15 in the process of contacting the inclined plate 15 located in the lower center of the vortex bath 20. Will be done.

At this time, since the rainfall runoff flowing in contact with the inclined plate 15 passes through the protruding groove 15b having the opening 15c formed on the inclined plate 15, the opening of the protruding groove 15b formed in the inclined plate 15 is increased. The fractionation of the fine particle solid water 40 precipitated together with some rainfall runoff is made through 15c and is directed to the settling tank 17 of the main body 10.

And as the rainfall runoff is further advanced, the rainfall runoff passes through the blocking wings 14 provided around the inner side of the main body 10 at the bottom height of the outlet pipe 13 in the course of the water flow toward the top of the vortex tank 20. The flow becomes weak due to the resistance of) so that the flow is not precipitated in the inclined plate 15, and the outflow blocking and precipitation of the fine particle solids 40 included in the water stream is made.

In the sedimentation tank 17 of the main body 10 in the process of classifying by precipitation of the fine particle solid 40, a portion of the rainfall runoff is stored. The sedimentation tank 17 has a vortex tank in which swirl flow and upflow are formed. 20) and unlike the inside of the main body 10, the flow of rainfall effluent is weak, so that the precipitation of the fine particle solids 40 included in the rainfall effluent is made smoothly, so that the precipitated fine particle solids 40 are lowered in the settling tank 17. It is possible to be deposited on the top surface of the bottom slope plate 16, the fine particles solid 40 deposited on the top surface of the bottom slope plate 16 is the hole 16a of the bottom slope plate 16 with the rainfall runoff stored in the settling tank (17). ) Can be discharged to the sewage pipes buried underground.

The valve 16b installed in the through hole 16a of the bottom slope plate 16 is naturally open in the process of discharging the rainwater discharged to the sewage pipe and the fine particle solids through the through hole 16a of the bottom slope plate 16 as described above. Becomes

However, depending on the installation conditions, the through hole 16a of the bottom slope plate 16 may not be connected to the sewage pipe. When the through hole 16a of the bottom slope plate 16 is not connected to the sewage pipe, the through hole of the bottom slope plate 16 is provided. The valve 16b installed in the 16a is in a closed state, and in this case, the fine particles solid 40 of the sedimentation tank 17 are deposited without being discharged to the outside, so that the cover 11 of the main body 10 is removed. The fine particle solid 40 deposited in the settling tank 17 is lifted up and removed from the top.

On the other hand, after forming the swirl flow in the vortex bath 20 and descending, the rainfall runoff flowing in contact with the inclined plate 15 rises in water level as the inflow continues, resulting in floating and particulate matter 30 and fine particle solids. In the state in which 40 is classified, discharge to the outside is made through an outlet pipe 13 leading to a storm pipe or a river buried in advance in the ground.

In the process of discharging rainfall runoff through the discharge pipe 13, when the amount of rainfall runoff is larger than the discharge through the discharge pipe 13, the water level inside the main body 10 and the vortex tank 20 is the discharge pipe 13. It is possible to rise above the height, even if the water level inside the main body 10 and the vortex tank 20 rises above the height of the outflow pipe 13, the overflow tank 13 is provided with the outflow pipe 13 of the main body (10) 12) is formed with a recess 12a extending from the height of the lower end of the outlet pipe 13 to the upper end of the main body 10, so that the rainfall outflow water continues through the outlet pipe 13 through the hole 12a of the overflow tank 12. The discharge can be made, and the upper part of the vortex tank 20 is provided with a water-permeable screen 21 so that the water flows through the screen 21 to the main body 10, so that the rainfall runoff reaches the upper end of the vortex tank 20 inside. Through the screen (21) through the opening (12a) of the overflow tank (12) Continuously released into a tube (12) is able to be made.

Here, the screen 21 of the vortex tank 20 is for application of a screen method, and the floatability classified by the swirl flow in the water passage process through the screen 21 of the vortex tank 20 to the main body 10 and Particularly, the particulate material 30, in particular, the floating material is caught on the screen 21, and the discharge to the outside is blocked, so that the rainfall runoff water passing through the screen 21 can be discharged with the floating material removed.

At this time, the suspended solids caught on the screen 21 is lowered as the inflow of the rainfall outflow water is lowered as the water level falls into the settling tank 17 so that it can be discharged to the outside through the through hole (16a) of the bottom slope plate (16) do.

The rainfall runoff treatment process as described above is an example in which the amount of rainfall runoff is large enough to form a swirl flow in the vortex bath 20, and if the amount of rainfall runoff flows in the vortex bath 20. In the case of a small amount such that the flow can not be formed, the rainfall runoff flowing into the vortex tank 20 bottoms directly toward the lower settling tank 17 without the upward process from the vortex tank 20 to the upper portion of the main body 10. Discharge is made to the sewage pipe via the inclined plate 16 through the through hole 16a.

Since the present invention as described above is not limited to the above-described embodiments, it can be changed within the scope not departing from the gist of the present invention claimed in the claims, such changes are within the claims described.

1 is a perspective view showing the external appearance of the composite rainfall runoff treatment apparatus according to the present invention

Figure 2 is a front sectional view showing the internal structure of the composite rainfall runoff treatment apparatus according to the present invention

Figure 3 is a plan sectional view for explaining the structure of the main body in the composite rainfall runoff water treatment apparatus according to the present invention

Figure 4 is a cross-sectional view for explaining the structure of the inlet pipe of the vortex tank in the composite rainfall runoff water treatment apparatus according to the present invention

Figure 5 is an operating state diagram for explaining the classification of suspended solids and particulate matter through the composite type rainfall runoff treatment apparatus according to the present invention

Figure 6 is an operational state diagram for explaining the solid precipitate through the composite rainfall runoff treatment apparatus according to the present invention

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

10: body 10a: frame

11: cover 11a: bolt

11b: Nut 12: overflow tank

12a: Trim 13: Outflow pipe

14: cut off wing 15: inclined plate

15a: through hole 15b: protruding groove

15c: opening 16: floor inclined plate

16a: through hole 16b: on / off valve

17: sedimentation tank 20: vortex tank

21: screen 22: inlet pipe

23: baffle 24: expansion wing

30: suspended solid and particulate 40: fine particle solids

A: Rainwater Runoff Treatment System

Claims (5)

 It is made of a cylindrical shape, the cover is freely separated and coupled to the top is provided, the overflow tank is formed on the outer surface of the upper one side is provided, the outlet pipe leading to the outside is provided on one side of the lower side of the overflow tank, the inner circumference of the outlet pipe bottom height In the lower portion is provided with a cutting wing that gradually decreases in diameter, and the inner side of the middle portion is gradually reduced in diameter toward the lower portion is formed with a through hole is formed in the center and the inclined plate provided with a radially projecting groove on the upper surface, the lower inner The main body is provided with a bottom slope plate having a through hole formed in the center while gradually decreasing in diameter toward the center thereof, and a precipitation tank provided between the inclined plate and the bottom slope plate; It is located in the inner upper end of the main body is made of a cylindrical, a water-permeable screen is provided around the upper end, through the one side of the main body is passed through the main body is provided with an inlet pipe forming a rounded end, the lower inner peripheral surface circumference The baffle forming the inclined radially, and the vortex tank is provided with a dilating wing that gradually increases in diameter while going downward to the outer periphery of the bottom; The method of claim 1, Protruding groove formed in the inclined plate of the main body is formed with an opening at one end relatively wider, the composite type rainfall runoff treatment characterized in that the one end formed with the opening is arranged radially to face downward Device. The method of claim 1, The split formed in the overflow tank of the main body is a composite rainfall runoff water treatment apparatus characterized in that it extends from the bottom height of the outlet pipe to the top height of the main body. The method of claim 1, The through-hole formed in the bottom slope plate of the main body is a composite rainfall runoff treatment apparatus, characterized in that the valve is opened and closed manually. The method of claim 1, The baffle of the vortex tank is projected to a width corresponding to 2-3% of the diameter of the vortex tank, the composite rainfall runoff treatment apparatus, characterized in that inclined in the direction of rotation of the rainfall runoff flowing in the vortex tank.

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