KR100681933B1 - Increasing equipment of water purification in storm water reservoir by vertical porous outflow facility - Google Patents

Abstract

The present invention increases the sedimentation efficiency in the reservoir by installing a vertical void discharge facility at the outlet of the reservoir continuously discharged while the contaminated water containing the suspended substances, etc., and discharges by filtering the suspended solids and the suspended state in the reservoir The present invention relates to an apparatus for increasing water quality in a reservoir where natural collection and storage of contaminants and backwashing of the reduced filtration surface maintain the filtration rate.

Vertical void outflow facility, filtering device, sump, filtering network, backwashing device, reservoir

Description

Increasing equipment of water purification in storm water reservoir by vertical porous outflow facility

1 is a plan view of a conventional general reservoir

2 is a cross-sectional view taken along the line "A-A" of FIG.

Figure 3 is a plan view showing the reservoir of the present invention

4 is a cross-sectional view taken along the line “B-B” of FIG. 3.

Figure 5 is a perspective view of the vertical void outflow facility that is the main part of the present invention

6 is an exploded perspective view of FIG. 5;

7 is a cross-sectional view taken along the line "C-C" in FIG.

8 is a cross-sectional view taken along the line “D-D” of FIG. 7.

Figure 9 is an exploded perspective view of the filter device in Figure 6

10 is an enlarged cross-sectional view taken from the backwashing device in FIG.

11 is another embodiment of the vertical void outflow facility according to the present invention

Figure 12 is an exploded perspective view of the filter device in Figure 11

Figure 13 is the separation of the sump and strainer settle in the vertical void outflow facility of the present invention

        try

14 is a front view of the star filter in accordance with the present invention

15 is a cross-sectional view taken along the line “E-E” of FIG. 14.

16 is an open rainwater purification reservoir installed with the present inventors vertical void outflow facility

        Floor plan

FIG. 17 is a cross-sectional view taken along the line “F-F” of FIG. 16.

FIG. 18 is a view of a rainwater purification reservoir in which the inventors have installed a vertical air gap discharge facility.

        Floor plan

19 is a cross-sectional view taken along the line “G-G” of FIG. 18.

20 is a plan view of a pond in which the present inventors vertical void outflow facility is installed

FIG. 21 is a sectional view taken along the line “H-H” of FIG. 20.

Figure 22 is a plan view of the settling land for construction of the present inventors vertical void outflow facility

FIG. 23 is a cross-sectional view taken along the line “J-J” of FIG. 22.

24 is a plan view of the rainwater pumping station reservoir installed with the inventors vertical void outflow facility

25 is a cross-sectional view taken along the line "K-K" in FIG.

Figure 26 is a plan view of the suspended solids filter equipped with the present inventors vertical void outflow facility

FIG. 27 is a sectional view taken along the line “L-L” in FIG. 26

※ Explanation of symbols used in main part of drawing

10. Reservoir 11. Inlet

12. Outflow 14. Constant water level (or shooter level)

15: Temporary storage capacity due to increased flow

15a: Temporary storage due to shrinkage

18. Yeosu-ro 19. Attenuator

20: vertical void outflow facility 30: filtration device

31: filter settle 31a: hole

31b: Rim wing 31c: Inner cylinder

32: filter screen fixing frame 32a: bottom plate

32b: fixed column 32c: top plate

32d: outlet 33: filter network

33a: wing 34: filter

34a: Flower Filter 34b: Star Filter

34c: top panel 34d: cover

35: backwash device 35a: water spray nozzle

35b: Trunk 35c: Washing water supply piping

35d: cover 35e: cleaning hole

35f: Spigot 40: Overflow free fall filtration facility

41: overflowware 42: filter settlement insertion hole

43: filtration chamber 44: filtered water sump

50: support 60: discharge pipe

70: sump 71: purified water discharge pipe

80: light shielding film 81: hole

90: sump 91: discharge pipe

100: rainwater purification reservoir 101: initial excellent separation facility

110: open rainwater purification reservoir 111: initial rainwater separation facility

120: pond 130: construction settlement

140: rainwater pumping station reservoir 150: suspended solids filter paper

The present invention increases the sedimentation efficiency in the reservoir by installing a vertical void discharge facility at the outlet of the reservoir continuously discharged while the contaminated water containing the suspended substances, etc., and discharges by filtering the suspended solids and the suspended state in the reservoir The present invention relates to an apparatus for increasing water quality in a reservoir where natural wastes are collected and stored naturally, and the filtration rate is reduced by backwashing to maintain the filtration rate.

Generally, reservoirs for storing rainwater are installed for flood prevention, water supply and rainwater purification purposes.

In order to supply water, the reservoir must be filled with water, but to prevent flooding, the reservoir must be emptied normally. Also, the reservoir should be emptied for the effective purification of contaminated rainwater. It may be installed for more than one purpose.

It is easy to maintain when inflow water flows into the natural reservoir and discharges into the natural stream.However, in low areas, it is inevitable to install and drain the pump.In areas where the reservoir area is insufficient, the reservoir is deeply installed and drained by the pump. In some cases.

To store water in the reservoir when it is rainfall in a reservoir discharged by natural oil type, a flow control device such as a sluice gate must be installed, and the water gate is closed at every rainfall to save water, and after a certain time, the water gate is opened to prepare for the next rainfall. It must be discharged.

This work can be done by securing dedicated personnel in large reservoirs such as dams, but it is very difficult to repeat this process for every rainfall by installing hydrologic gates in many small reservoirs.

Therefore, the small reservoir is installed in the form of a sedimentation basin for rainwater purification, the rainwater flows in and overflows and flows out in a state where water is normally filled.

If the rainwater is filled with water in the same form as the sedimentation basin and the polluted rainwater enters the reservoir, the polluted rainwater will be mixed with the water of the reservoir, and the amount of the polluted water will flow out. It is not removed but flows out of the reservoir, which reduces the water purification effect.

Water purification at the reservoir occurs mainly in sedimentation of sedimentable substances in fresh water.

Currently, small rainwater reservoirs for water purification are installed at various locations and in various sizes and forms, but most of these reservoirs have insufficient capacity and cannot be installed in a structure that can effectively settle. Low efficiency

Therefore, in order to increase the water purification effect in the reservoir, it is a good idea to keep the reservoir empty and store the contaminated rainwater for a certain period of time before discharging it. The width must be equal to or greater than the depth, and the rectifying plate or perforated wall is installed in the entire inlet so that the water flowing into the structure of the inlet can flow through the reservoir front face, and the outlet can also flow out of the overflowed state. It is good to have enough overflowware length, but it is difficult to meet these standards in the field.

As such, rainwater reservoirs for water purification should be installed in the form of emptying the reservoirs for normal water purification or in the case of sedimentation basin in order to increase the sedimentation efficiency, but most rainwater purification reservoirs do not have such conditions.

On the other hand, dual purpose reservoirs or flood prevention reservoirs for flood prevention and rainwater purification are installed in such a way that the reservoirs are emptied by the usual flood control, and there are two methods of emptying the reservoirs at these reservoirs.

The first method is to install water gates, valves, and movable wear to control the discharge amount at the outlet, and open these facilities at normal times to drain the reservoir water, and then close the water gate to settle down after a certain period of time. Sedimentation of suspended solids, opening the water gate to drain the water, and closing the water gate again, this method requires a discharge control facility such as a hydrology, and this process has to be carried out every rainfall, so maintenance is very difficult.

The second method, as shown in Figs. 1 and 2, does not install a discharge control facility such as a sluice gate in the existing general reservoir 200, and the discharge outlet height is lower than the inlet, that is, the outlet is the reservoir bottom or water level, permanent It is installed in accordance with the normal water level of the pond and makes the cross-section of the outlet small and continuous to drain the water of the reservoir little by little. If the amount of inflow is small, it flows over the free surface at the outlet and flows out. As the temporary storage capacity 15 increases, the water is temporarily stored as the water level increases.

In this way, inflows fluctuate continuously in the reservoirs, where the inflow is small, and when the water level is low, the outflow water is discharged to the overflow state, but when the inflow increases, the outflow facility is submerged and the water is discharged under pressure.

When the water is discharged under pressure, the amount of discharge is increased by water pressure, and the flow rate is increased. Thus, a short circuit is formed in the vicinity of the discharge facility to the discharge port, and the access flow rate is increased, and the reservoir outlet part becomes turbulent and adversely affects precipitation.

In the reservoir, the temporary storage capacity 15 due to the flow rate increases and increases as the water level rises, and this phenomenon is further accelerated.

The sedimentation process of particles introduced into the reservoir continuously flowing as the water level fluctuates is as follows.

Particles entering the reservoir will move toward the outlet as they settle by the flow velocity and gravity of the water.At this time, the particles will flow to the outlet and, if they reach the bottom, will be deposited in the reservoir, but if they do not touch the floor while flowing to the outlet, the particles will be discharged through the outlet. .

The settling time of the particles in water is determined by the settling speed according to the size and density of the particles and the position of the particles in water, i.e. the height of the water from the bottom to the particles.

Therefore, the particles introduced into the reservoir are large and heavy, or the lower the position of the particles in the reservoir, the shorter the time required for precipitation is, the greater the possibility of precipitation.

Therefore, the type of reservoir has a low water depth and a large water surface area to store the same capacity, thereby increasing the settling efficiency.

If the water level rises due to an increase in flow rate from the reservoir to the rainfall, this means that the position of the particles to be precipitated is increased, so more precipitation time is required for the particles to settle to the bottom.

However, because the flow rate is increased, the residence time decreases, so that the sedimentation time cannot be sufficiently secured. Therefore, the particles having a high position do not settle out and flow out to the outside.

In addition, as the water level rises, the water pressure at the outlet increases, increasing the outflow.As a result, a short circuit is formed from the outlet to the outlet, and the access flow is fast.The outlet flow becomes turbulent and does not settle. Particles that have settled out will also leak.

On the other hand, in the reservoir where rainwater is introduced, large and small floating garbage, contaminants are introduced to float on the water surface, thereby damaging the waterfront landscape.

However, these emissions cause the problem of contaminating downstream waters with them.

As such, when the reservoir is empty and the polluted water is temporarily stored during the rainfall and the small amount is continuously discharged from the reservoir, the sedimentation effect of particulate pollutants cannot be greatly expected and there is a problem due to the floating garbage. .

Foreign countries such as the United States are using the following methods to solve these problems.

(1) bottom outlet method

As an outflow facility in a reservoir for the purpose of flood prevention and rainwater purification, create a vertical overflow collector structure with an empty interior and open top with concrete, etc. 1 ~ 2 by the height of the lower or above the catchment structure according to the permanent level of the permanent pond. The hole is drilled in stages, and the size of the hole is smaller than the flow rate so that the flow rate is small. If a small flow rate flows in, it flows out into the lower hole. The method of overflowing into a hole and an upper opening is used.

However, the problem with the above method,

① Install the outlet facility in one place, and since there are usually one or two outlets, the flow rate is concentrated to the outlet, and the access flow rate becomes larger, which leads to turbulent flow, which reduces the settling efficiency.

② The outlet is installed at the bottom, so when the water level rises, the water pressure increases, so the flow rate increases, and a short circuit is formed.

③ It is expensive to construct large and wide spillage facility as concrete facility.

④ Floating garbage is discharged to pollute the downstream waters.

(2) pore outlet method

Make a discharge facility in the same way as the lower outlet method, but do not install one or two outlet holes in the lower part or the wall, but make small holes in the whole wall surface. If the water level rises, the temporary storage capacity (15) increases as the water level rises and flows to the upper opening at the same time as the pore.

① The improvement effect is not great because the discharge facility is not concrete enough to effectively secure the outlet for each level that can cope with the rise of the reservoir level as a concrete structure.

② In order to improve the sedimentation effect, it is necessary to install a lot of spillage facilities.

③ Floating garbage remains in the reservoir and floats around to harm the water changer.

(3) How to wrap the hole outlet with filter cloth

As a method of filtering the suspended solids that flow out by wrapping the outside of the oil sharing exit structure as an example above, the purification efficiency is improved by filtration and the pores of the filter cloth are clogged with the suspended solids, thereby increasing the temporary storage capacity due to the reduction of voids.

① Since the size of the perforated outflow structure is not large, the filtration area is small even when the entire outflow part is wrapped, so that the voids are clogged quickly. As a result, the reservoir water is not drained for a long time.

② Maintenance work such as replacement of filter cloth with clogged pores is difficult

③ Floating garbage remains in the reservoir and floats around to harm the water changer.

(4) floating outlet method

Make the outlet vertical and make the outlet in the lower part, and connect one end of the light pipe which is longer than the fluctuation level width and float in the water to the lower outlet hole, but connect the pipe connecting part in the structure that can be bent up and down flexibly. Floating water in the upper part of the reservoir while floating in the fluctuating water level to float on the water, there is an advantage that can increase the sedimentation effect by increasing the temporary storage capacity (15) due to the rise in water level, but the problem is

① The durability of the device is low, so the reliability is low.

② There is a limit to increase outflow area by using pipe.

③ The inflow port may be blocked by floating impurities.

④ The outflow part should be near the embankment far from the inflow part, but because of the long pipe, the outflow facility should not be installed near the outflow embankment.

⑤ Floating wastes are discharged to pollute the downstream waters or remain in the reservoirs to harm the water change pipe.

(5) How to install the filter in the outlet

On the other hand, as a method of installing a filter at the outlet of the reservoir, there is a patent registration No. 0437075 "rainwater purification method and apparatus using the reservoir".

The patent is a method of controlling the discharge amount by installing the water gate in the reservoir to separate the initial rainwater with high pollution in the reservoir installed with the filter in the outlet and to store for a predetermined time to precipitate particulate matter and then discharge the supernatant by filtration through the filter As the reservoir is operated as a batch type, there is no turbulence and the sedimentation effect is certain. In addition, the water quality is very good by filtering suspended matters through the filter.

① It is difficult to operate and manage because water gates should be installed at the reservoir and open and close these facilities at every rainfall.

② In the reservoir where rainwater with a lot of particulate matter flows in, the filtration area of the cylindrical side of the filter is small so that the voids are blocked quickly, which hinders the filtration and discharge functions, and it is difficult to clean or replace the filter cloth.

③ Floating garbage remains and floats around to harm the water changer.

The present invention is to solve these problems, an object of the present invention, to prevent turbulence in the outlet portion in the reservoir continuously flowing out without installing a flow control device such as a hydrology at the reservoir in which the contaminated water containing the floating material flows Increase the temporary storage capacity to increase the sedimentation efficiency and install a pore outflow device that can additionally filter out the non-sedimented floats, and by collecting nature's suspended matters in the reservoirs economically to increase the water purification effect in the reservoirs and to close the voids. The filter surface of the outlet device is backwashed with water to maintain the filter continuously and to facilitate maintenance.

In order to achieve the above object, the present invention, while installing the discharge facility of the reservoir in a vertical type to enable continuous outflow to the natural flow while responding to the water level fluctuations can capture and store the floating contaminants in accordance with the shooter level or constant water level A vertical pore outflow device equipped with a flower- or star-shaped curved-surface filter that maximizes the filtration area by using a drop filtration chamber and a filter network with voids is installed. Balanced and distributed arrangement allows the discharged water to flow out vertically and vertically, which prevents turbulence in the spilled area and increases the temporary storage capacity due to delayed filtration rate due to the reduction of the lower void of the pore outflow device. A filter network with an optimized filtration area opens up additional suspended solids Also, at the flow rate approaching the outlet, the floating contaminants gathered around the filter descends as the water level drops and are automatically captured and stored in the overflow drop filter room, and the backwashing facility is installed inside the filter to backwash outside the filter when the air gap is closed. The objective can be achieved by providing an apparatus for increasing water quality at the reservoir, which is capable of supplying pressure water to the plant to backwash the filtration network.

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

As shown in Figure 3 to 4, the present invention, the reservoir 10 consisting of the inlet section 11, the outlet section 12 and the runway 18 so that the contaminated water containing the suspended matter, etc. inflow, storage, outflow ),

It is installed in the outlet area 12 of the reservoir 10 at a constant water level 14 (or catchment level), and the filtration device 30 is installed in the upper part of the overflow drop filtration facility 40 to filter and collect the suspended matter. Vertical void outflow facility 20 is fixed to the support (50);

A collecting well 70 for collecting water purified by the vertical void outflow facility 20 through the discharge pipe 60;

Purified water discharge pipe 71 is installed so that the purified water collected in the sump 70 is discharged to the outside.

The overflow free fall filter facility 40 is installed in the closed waterware 41 in a closed form in water as shown in Figures 5 to 8 and the upper floor with a slight step with the upper portion of the overflow wear (41) But the central portion of the upper bottom of the strainer insert hole 42 is drilled and the discharge pipe 60 is configured inside.

As shown in FIG. 9, the filter device 30 is inserted into and fixed in the filter settlement insertion hole 42 of the overflow free drop filtration facility 40, and the filter settling hole 31 in which the hole 31a is drilled in the center bottom surface thereof. )and,

A filter 34 seated in the filter settlement 31 and surrounded by a filter net 33 around a filter net fixing frame 32;

It is composed of a backwashing device (35) installed in the filter (34) and attached with a plurality of spray nozzles (35a) at the outer periphery to wash the filter network (33).

The filter net fixing frame 32 is composed of a lower plate (32a), a fixed column (32b) and the upper plate (32c), the filter net 33 is a flower shape as shown in Figure 8 to maximize the filtration area Or a curved polyhedron in the form of a star, as shown in FIG. 14.

In addition, the backwashing device 35 has a plurality of spray nozzles 35a attached to the outer circumference of the cylindrical body 35b as shown in FIGS. 9 to 10, and the washing water supply pipe 35c is disposed above the body 35b. ) Is provided with a cover (35d) is provided, the lower portion of the body (35b) to form a cleaning hole (35e), the cleaning hole (35e) is a configuration that can be attached to the stopper (35f).

On the other hand, the filtration device 30 is installed in the case of the flower shape of the filter network 33, backwashing device 35 is installed, and when the backwashing device 35 is difficult to install the backwashing device because there are many wings in the star-shaped filter, Do not install.

In addition, the filtering device 30 may be provided with a light shielding film 80 having a plurality of holes 81 formed on the outer periphery and the upper surface, but when the material of the filtering net is fabric and the filtering device is always submerged in water. When the light shielding film 80 is installed and the material of the filtering net is stainless and the filtering device is occasionally submerged in water, it is better not to install the light shielding film.

Embodiments of the present invention configured as described above will be described in detail with reference to the accompanying drawings.

In order to prevent turbulence in the continuously discharged reservoirs, the outlet area is secured sufficiently and the outflow facility is installed to flow out evenly in the outflow area 12 so that the outflow is dispersed to prevent short circuit formation and the access flow rate is lowered to prevent turbulence. can do.

In the present invention, because the water level of the reservoir 10 is fluctuate, the outflow facility is made vertical, but in response to an increase in the temporary storage capacity 15a, the outflow facility has a large porosity so that the entire outflow facility is responsible for the outflow function. By creating a vertical void outflow facility (20) and distributing this facility in a single or multiple balanced manner according to the size or shape of the outflow part (12). Is prevented and the sedimentation efficiency is increased, and the water purification effect is increased as the suspended solids which are not precipitated are filtered in the filter network 33.

The vertical pore outflow facility 20 uses a filtration net 33 (or filter cloth) with a filtration function to form a cylindrical or square cylinder, or to maximize the filtration area and to backwash the cosmos flower on a flat surface. It is a curved drainage type cylindrical outflow facility that forms a curved surface in the form of a star or star and blocks the vertical side with a filtering network. The facility flows out through the air gap of the submerged filter surface when the level rises.

The vertical pore outflow facility 20 is an outflow facility that can cope with water level fluctuations. Since the outlet is in the form of a gap from the constant water level to a high water level position, the flooded area fluctuates according to the water level fluctuation. Larger water pressure than the upper side will increase the amount of outflow.

In order to suppress this, the lower pore size may be smaller than the upper side, and as time passes, the lower side naturally blocks the pores faster than the upper side, thereby lowering the lower filtration speed.

Eventually, this phenomenon has the effect of delaying the filtration rate due to the reduction of the lower pore of the pore outflow facility, and the temporary storage capacity (15a) due to the reduction of the pore is increased, thereby temporarily storing the rapidly increasing flow rate and providing extra settling time. Efficiency is increased.

Cosmos flower-shaped curved multi-layer filter used for vertical pore outflow facility 20 is abbreviated as flower filter 34a and star-shaped curved multi-layer filter is called star filter 34b for short.

These flower filters 34a and star filters 34b have a very large filtration area, which is longer than the time when the pores are closed, and the filtration area is large and the porosity is large, even though the pores are blocked so that the water in the reservoir does not drain quickly. As the voids remain, a small amount is continuously filtered, and after a certain period of time, all the water in the reservoir is drained and emptied to prepare for the next rainfall.

In general, flood prevention reservoirs have been drained within 6 to 24 hours after the flooding to empty the reservoirs to prepare for the next rainfall.However, in the reservoirs for rainwater purification, pollutants accumulate on the upstream basin surface, so the rains are frequently polluted. Since the reservoir drainage time is slightly longer than the flood-prevention reservoir, there is no major problem because it is rainwater purification.

In addition, the vertical void outflow facility 20 is a facility capable of backwashing the filtration surface with water in removing a contaminant caught on the filtration surface of the filtering network 33, and a body having a plurality of spray nozzles 35a inside the filter 34. It is possible to install 35b and supply pressure water from the outside to backwash the filtration surface or backwash inside the filter 34 by a manpower using a hose or the like through which pressure water flows.

Hereinafter, the vertical void outflow facility will be described in detail.

As shown in FIGS. 5 to 8, the vertical pore outflow facility 20 includes a monthly free fall filtration facility 40 installed in accordance with the permanent water level 14 (or the catchment level) of the permanent pond and the pore outflow facility installed on the facility. Phosphorus filtration device 30 is configured.

Monthly drop filtration facility 40 is a free fall facility with a monthly wear (41), the bottom behind the monthly wear (41) becomes the filtration chamber 43, the lower portion of the filtration chamber 43 is used as the filtered water collecting well (44) It is a facility that can be made of concrete, steel, etc.

In the open reservoir constructed as a levee, the overflow free fall filtration facility 40 is located at the outlet 11 of the reservoir 10 so that the reservoir water can flow in all directions and is slightly separated from the slope of the levee so as to be easily accessible. ), The overflowware 41 is installed in a quadrangular or circular closed form, and the inside of the quadrangular structure consisting of the overflowware 41 is formed as a filtration chamber 43 with a slight drop and used as a filtration chamber 43. 43) The lower four sides are walled to form a base and a filtered water collecting well (44). A discharge pipe (60) is installed from the collecting well to an external discharge area, and a filter inner cylinder insertion hole (42) is provided at the bottom of the filtering chamber (43). Drill and install a strainer settling cylinder 31 and strainer 34 in the upper portion of the hole (42).

The strainer insert hole 42 at the bottom of the filter chamber 43 is circular in size to fit the strainer 31 into which the hole 42 is provided for the installation of the strainer 34. Used as a manhole for maintenance of the sump 44.

As shown in FIG. 9, the filter settlement cylinder 31 is a cylindrical bowl made of steel or the like having an open top and a hole 31a at the bottom thereof. 42) there is a rim wing (31b) to the outside of the upper surface to be mounted on the bottom surface there is an inner cylinder (31c) protruding upward.

Insert the strainer 31 into the strainer insertion hole 42 at the bottom of the filter chamber 43 and insert the strainer 34 into the strainer 31 so as to sit on the upper portion of the inner cylinder 31c. When the filter net is washed, exchanged, and removed the trapped contaminants trapped in the filtration chamber 43, the filter 34 is separated and cleaned. At this time, the inner cylinder 31c protrudes from the bottom of the filtration chamber 43. Trapped in the capture space in the filter settle (31) does not flow into the filter water collecting well (44).

On the other hand, in reclaimed reservoirs, and settling sites where only construction periods are installed, the monthly freefall filtration facility is made of steel frame, but the foundation is installed. However, instead of the collection well 44, the collection canister 90 is installed under the filter settler 31. Connect the discharge pipe (91) to the sump (90).

The filter 34 is a flower filter 34a using a filter net or filter cloth with air gaps, and has a very large filtration area. The filter 34 is filtered at the flooded side according to the water level of the reservoir, and the filtered water flows downward through the central space. It is a filter that back-washes contaminants caught in the filter network by supplying pressure water therein.

These filters have a larger filtration area than cylindrical filters, and the larger the number of protruding wings, the larger the filtration area but the larger the filtration area, the larger the filter area, and the more suitable the backwashing facility of a fixed size. Determine the number of wings that protrude in the range that does not interfere with manufacturing and function launch.

First, the planar configuration method of the flower filter 34a will be described.

Construct a circle of a certain size and call it an outer circle, set the inner circle to a size that is half the diameter of the outer circle, and divide the inner circle into equal lengths at intervals where the backwashing facility can be installed with a spray nozzle (35a). .

In addition, by dividing the evenly spaced on the outer circle, the outer circle is divided into lengths similar to the dividing length of the inner circle by the number of divisions of the inner circle, but divided so that the split length center on the inner circle and the split length center on the outer circle coincide.

If each end of the divided length is regarded as a split point, the number of split points is the same as the number of wings on the inner circle and twice the inner circle on the outer circle.

Connect each split point in a straight line, but connect the point on the inner circle and the point on the outer circle, connect the points on the adjacent outer circle in succession, and then connect the points on the inner circle and connect all the points. A bending plane can be obtained.

As shown in FIG. 15, the planar configuration of the star filter 34b combines two split points on the outer circle of the flower filter with one split point in the center to form a curved curved surface in the form of a star. Point and inner recessed split point, and the external projected split point is located at equal intervals on the outer circle from the center, and the inner recessed split point is located at equal intervals on the inner circle, and when viewed from a straight line extending radially from the center to the outside The position of the splitting point is located between two inner recessed splitting points at equal intervals.

The size of particulate matter removable in filtration is determined according to the size of the pores.

The smaller the pore size, the smaller the size of particulate matter is removed, so the water quality is clearer. On the contrary, many particulate matters removed on the filter surface accumulate and close the pores quickly. Therefore, the permeability of the filter media is reduced, resulting in a short service life of the filter network 33. Lose.

Therefore, in filtration, it is important to sufficiently secure the filtration area necessary for securing a large amount of filtration water and lengthening the filtration duration while purifying the water quality by reducing the pore size of the filtration net 33.

In the flower filter 34a, the backwashing device 35 is installed inside the filter 34 to backwash, and the star filter 34b is backwashed without the backwashing device 35, thereby maximizing the filtration area in the flower filter 34a. Is to form a multi-sided by making as many wings (33a) within the possible range, the size of the inner circle is an important factor in the form of hypnotic. As the number of wings is formed, the internal angle between the wings is narrowed, which makes the installation of backwash facilities get affected.

Therefore, the flower filter (34a) is composed of a large number of wings to maximize the filtration area, but determines the number of wings (33a) in the range that does not interfere with the installation and maintenance of backwashing facilities, but the star filter (34b) has no backwashing facilities It is possible to make a large number of wings by narrowing the interval between the wings 33a.

The filter area is also determined by the size of the internal source.

In the outer circle of a certain size, the smaller the diameter of the inner circle is, the longer the length of the vertex on the outer circle and the inner circle is, the longer the filtration surface length is, but the number of wings is determined by the size of the inner circle, so the larger the diameter of the inner circle is, The larger the number, the larger the filter surface.

In this situation, when the dividing length on the inner circle where the backwashing facility can be installed is the same in the flower filter having the external source of a certain size, the size of the inner circle that can secure the maximum filtration area is half the size of the outer circle. Size.

In the filter 34 installed in the open reservoir, a light shielding film 80 is installed if necessary, and all materials use plastic or stainless steel, which are not corrosive.

Referring to the filter surface forming method is installed in the filter net fixing frame 32 as follows.

In the two discs of constant size, install as many dividing points as necessary on the outer circle and the inner circle, and place the two plates facing each other at regular intervals to make a three-dimensional structure combining the fixed columns (32b) by welding or the like between each dividing point. The upper plate 32c is inserted into the backwashing device 35 or cut slightly larger than the backwashing device 35 in the form of a wing to facilitate the backwashing operation, and makes the outlet 32d in the lower plate 32a.

Pass through each of the fixing columns (32b) in a flexible metal, synthetic fiber filter net, filter cloth, etc. slightly wider than the height of the column so as to form a flower or star plane, and pull the filter net (33) and the like in tension Form a curved surface of the flower or star shape, or weld the filter plate with pores such as a grid of steel and plastic, pore plate, and wedge-shaped bar screen on each side between the pillars without installing the column. If combined by the method of flower or star-shaped curved surface to form a filter.

The size and shape of the pores of the filter surface are selected according to the flow rate of the reservoir, the water quality, the characteristics of the contaminants, the frequency of the filter surface washing, and the target water quality. Install different materials or mesh sizes.

The use of a small mesh filter net in the lower layer and a large mesh filter net in the upper layer will allow the small voids in the lower layer to delay the outflow, increasing the temporary storage capacity (15a) of the reservoir and increasing the settling time. If you do not install a large mesh or filter network, this will act as a overflow port, so there is no problem in the flow communication even when the large flow inflow.

In addition, if some of the filtering surface is installed in a large mesh, the large mesh installed filter surface is well backwashed, it is possible to easily recover the effluent decrease due to pore closure.

The light shielding film 80 is a facility for blocking the sunlight to protect the filter medium from ultraviolet rays and to prevent the attachment of algae, etc., if necessary, installed in a cylindrical shape outside the filtering surface.

The light shielding film 80 is manufactured in one cylinder or divided into several and installed in a form that can be attached and detached with bolts, knots, etc. on the upper cover of the filter, and installs a plurality of water communication holes 81 at appropriate sizes and intervals on the cylindrical surface. When the filter is installed inside the cover structure, the light shielding film 80 may not be provided.

The flower filter backwashing device 35 is a facility for supplying pressure water to the body 35b from the outside by installing a body 35b having a plurality of water spray nozzles 35a attached to the inside of the filter 34. It is vertically coupled to the cover (35d) of the backwashing facility having a similar size and attached by projecting the washing water supply pipe (35c) on top of the cover (35d).

The size of the body (35b) is to make the size of the filter water communication in the inner circle is not disturbed, and to increase the water pressure, split the inside of the body (35b) and make the washing water supply pipe (35c) in each partition on the cover (35d) A hole 35e for cleaning is made in the lower part of the body 35b, and the water spray nozzle 35a is opened so that the number of blades 33a of the filtration surface is the same.

As shown in FIGS. 14 to 15, the star filter 34b covers only the backwashing facility cover 34d on the top plate 34c, and opens the cover 34d if necessary for backwashing, using a hose or the like through which pressure water flows through the manpower. Backwash from inside the filter to outside.

The backwashing operation is performed when the air gap is closed and the flow rate is small, and the time to empty the reservoir water becomes longer than planned time. The backwashing method is performed by using a vehicle loaded with a water tank or using a mobile pump This can be done by supplying pressure water to the upper backwash pipe of the filter, or open the cover and wash it by spraying pressure water directly with manpower.

On the other hand, the reservoir contains floating wastes, contaminants, and algae from the permanent pond inside the reservoir, and these floats are not discharged and remain in the reservoir, and the flow velocity approaching the discharge facility during the filter discharge from the filter 34 is generated. Are collected around the filter 34.

When the rain stops and the inflow to the reservoir decreases, the water level decreases gradually, and these floats sink with the water around the filter 34 and later remain on the bottom of the filtration chamber 43 of the overflow filter filtration system 40. It is captured and stored in the space blocked by 41.

Over time, these contaminants are all drained to the filtered water sump 44 of the bottom of the filter chamber 43, so that the debris is left in the bottom of the filter chamber 43 in a dehydrated and dried state.

The size of the filter 34 is determined in consideration of the size of the reservoir, the inflow flow rate and the water quality, the area of the outflow area, the number of installations of the outflow facility, the fluctuation of the water level, and the like. Install the support 70.

Vertical void outflow facility 20 of the present invention is a reservoir for rainwater purification and dual purpose storage for flood prevention and rainwater purification, as well as flood prevention reservoir, landscaping ponds, sedimentation site and sedimentation basin for sediment discharge blockage during construction, rainwater pumping station It can be applied to various reservoirs where polluted water is stored, such as oil reservoirs, and can be applied as a filtration facility to reservoirs or filter media for suspended solids where flow control facilities such as water gates and pumps are installed.

In addition, the rainwater purification reservoir, in which the vertical pore outflow facility 20 of the present invention is installed, can be used as a facility for separating and purifying highly polluted initial rainwater, and in a small storage facility in front of a storage facility such as a pond, cleaning, and landscaping water using rainwater. The installation of vertical void outflow facilities can ensure good quality rainwater.

An embodiment of the present invention will be described in detail with reference to the accompanying drawings.

① Dual purpose reservoir

As shown in FIGS. 3 to 4, the dual-purpose reservoir is a reservoir for flood prevention and rainwater purification, and all rainwater flowing out of the basin flows into the reservoir.

To build a reservoir by building a sedimentary dike, install a single or multiple vertical void outflow facilities 20 at the outlet of the reservoir, install a central catchment 70, etc., and install a waterway 18 at the reservoir. Ball 19 is installed.

② Open Rainwater Purification Reservoir

In the installation of rainwater reservoirs by building embankments with earth and sand, and the installation of vertical void outflow facilities in the outflow, the reservoir for rainwater purification is shown in FIGS. 16 to 17. Since it is possible to increase the water purification effect while reducing the size of the reservoir, it is preferable to install the initial excellent water separation facility 101 so that only the initial excellent water can be introduced into the reservoir before the rainwater is introduced into the reservoir, and it is desirable not to install it in the reservoir. .

The vertical void outflow facility 20 near the dike of the outflow part is installed at a height corresponding to the water level fluctuation in a position where the hydraulic balance is secured and accessible to the person in consideration of the size of the reservoir.

③ Open rainwater purification reservoir

As illustrated in FIGS. 18 to 19, the open rainwater purification reservoir 110 is a small-scale facility, and has a storage structure made of concrete in the basement and installs a vertical air gap discharge facility 20 at an outlet portion.

It is advisable to install the initial excellent separation facility 111 before the reservoir is introduced, and the monthly drop filtration chamber in the vertical pore outflow facility 20 is made of steel frame, etc., for cost reduction, and as shown in FIG. Install the arthropod 31 and attach the sump container 90 to the lower part of the filter arthropod, connect the discharge pipe 91 to the sump and install it out of the reservoir, and do not install the light shielding film outside the filter.

④ pond

As shown in Figs. 20 to 21, the pond is a place where water is normally stored, and most ponds do not have a large water level fluctuation due to a small amount of inflow water, a long residence time, and contaminants accumulate. On the side.

When the vertical air gap outlet 20 is installed in the outlet 12 of the pond, the pond is filtered and discharged or a pump is installed in the sump to supply the circulating water when the filtered water is supplied to the inlet when there is no inflow water. The material is collected naturally into the runoff facility, filtered and captured in the filtration chamber to purify the water quality of the pond.

⑤ Settlement site for construction

As shown in Figure 22 to Figure 23, the rainwater generated during the rain at the erosion site, such as the construction site contains a large amount of earth and sand to settle to remove them.

Settling paper 130 is a very short residence time of about 1 to 2 minutes to remove the sand of 0.1 ~ 0.2mm or more, and the settling basin is longer than the settled paper can remove relatively small particles.

As such, the sedimentation basin is better at removing particles than the sedimentation basin, but the residence time must be long, so the facility is large and it is difficult to secure the site and the construction cost is increased.

Therefore, the vertical pore outflow facility of the present invention can be installed at the outlet of the settling basin to discharge the fine soil which flows out without being precipitated.

Since most of the sedimentation site installed at the construction site is used only during the construction period, the monthly free fall filter room 20 is made of steel, etc. for easy installation and movement, and a filter arthropod 31 is installed on the foundation and a filter arthropod (31). Attach the sump (90) to the lower part and install the discharge pipe (91) connected to the sump.

⑥ Rainwater pumping station

The rainwater pumping station is installed in the reservoir as a facility for preventing the inundation of the reservoir, as shown in Figures 24 to 25, so that this reservoir is a vertical void of the present invention on the bottom of the reservoir so that it can be utilized as a facility for initial rainwater treatment in the case of small rainfall Install the outflow facility 20 to purify the polluted rainwater.

The height of the filter 34 is determined in consideration of the storage level according to the inflow of the reservoir, and the installation site of the vertical pore outflow facility 20 is slightly lowered at the bottom of the reservoir, and the water is dug to allow the initial rainfall to flow in first. 40) is at the same height as the bottom of the reservoir, and the filtrate sump 44 is installed in the bottom ground.

The water in the filtered sump 44 is drained to the discharge pump 17 by connecting the discharge pipe 60 to the rainwater pumping station, and the backwashing operation is operated by a valve by connecting the backwash pipe to the discharge pump at the upper part of the filter and backwashing or A water tank vehicle is approached near the filtration facility to supply pressure water.

⑦ Suspended material filter paper

As shown in FIGS. 26 to 27, since the vertical void outflow facility 20 is a filtration facility, the filtration surface is immersed or overflowed in water such as a reservoir or a water tank for storing contaminated water including algae, suspended matter, and the like. It can be installed so as to be in a state and filtered by water pressure due to the water level difference to obtain the water from which they are removed.

It can be used as a facility to remove algae and contaminants when taking water from rivers, reservoirs, dams, ponds, etc., and can be used as an additional filtration facility for polluted water treatment facilities such as sewage treatment plants and sewage treatment plants.

The vertical void outflow facility to be installed in a tank or the like is provided with a strainer settled on a base made of steel or the like, attaching a sump bucket 90 at the lower part of the filter settled cylinder 31, and connecting the discharge pipe 91 to the sump bucket 90. Install out of tank.

As such, the present invention is not limited to the preferred embodiments of the above-described features, and various changes can be made by those skilled in the art without departing from the gist of the present invention as claimed in the claims.

As described above, the present invention, first, in the use of the continuous discharge reservoir as a rainwater purification facility by installing a vertical void outflow facility is prevented turbulence is increased sedimentation efficiency

Second, by filtering and discharging the suspended solids contained in the effluent, the water purification effect is increased.

Third, it automatically collects the suspended impurities in the reservoir and automatically dehydrates them.

Fourth, since it forms a multi-sided filter surface, the filter area is large and the filter duration is long.

Fifth, backwashing the filter surface with water makes it easier to recover the voids on the filter surface.

Sixth, the backwashing facility has no driving part and is simple, so there is less trouble.

Seventh, it can be utilized as various filtering facilities to remove suspended solids by maximizing filtration area and easy backwashing method.

Eighth, the flood prevention reservoir can be used as a dual purpose for rainwater purification.

Ninth, the installation cost and maintenance cost of vertical void outflow facility is low

Tenth, the vertical void outflow facility is backwashed with water and is a prefabricated facility, so the present invention is an effective and very useful invention as compared to the existing method.

Claims (11)

In the reservoir (10) consisting of the inlet section 11, the outlet section 12 and the filtration channel 18 so that the contaminated water containing the suspended matter, etc., inflow, storage, outflow, It is installed in accordance with the constant water level 14 or the catcher level 14 in the outlet area 12 of the reservoir 10, and the filtration device 30 is installed on the upper part of the overflow drop filtration facility 40 to filter and collect the suspended matter. Next, the vertical void outflow facility 20 is fixed to the support (50); A collecting well 70 for collecting water purified by the vertical void outflow facility 20 through the discharge pipe 60; Water purification system in the reservoir, characterized in that consisting of the purified water discharge pipe 71 is installed so that the purified water collected in the sump 70 is discharged to the outside. According to claim 1, The overflow drop filtering facility 40 installs the overflow wear (41) in a closed form in the water and the top bottom with a slight step with the upper portion of the overflow wear (41) A device for increasing water purification at a reservoir, characterized in that the center portion of the filter settlement insertion hole (42) is drilled and the discharge pipe (60) is installed inside. According to claim 1, wherein the filtration device 30 is inserted into the strainer insert hole 42 of the overflow drop filtration facility 40 is fixed to the filter lower cylinder 31 in which the hole 31a is perforated in the center bottom surface; and, A filter 34 seated in the filter settlement 31 and surrounded by a filter net 33 around a filter net fixing frame 32; A device for increasing water purification in a reservoir, which is installed in the filter 34 and comprises a backwashing device 35 having a plurality of spray nozzles 35a attached to an outer circumference thereof to wash the filter network 33. 4. The apparatus of claim 3, wherein the filter net fixing frame (32) comprises a lower plate (32a), a fixed column (32b), and an upper plate (32c). 4. The apparatus of claim 3, wherein the filter network 33 is formed of a curved polyhedron in the form of a flower or a star to maximize the filtration area. The cover 35d according to claim 3, wherein the backwashing device (35) has a plurality of water spray nozzles (35a) attached to the outer periphery of the cylindrical body (35b), and a washing water supply pipe (35c) is installed on the body (35b). And a cleaning hole 35e in the lower portion of the body 35b, and a stopper 35f can be removed and mounted in the cleaning hole 35e. Augmentation device According to claim 3, wherein the filtration device 30, if the shape of the filter net 33 is a flower shape is provided with a backwashing device 35, when the backwashing device is difficult to install the backwashing device in the shape of a star with many wings, backwashing device Apparatus for increasing water quality at a reservoir, characterized in that no 35 is provided The method of claim 3, wherein the filtration device 30 Characterized in that the light shielding film 80 formed with a plurality of holes 81 in the outer peripheral portion and the upper surface may be provided Water Purification Enhancement Device in Reservoir The method of claim 8, wherein the light shielding film 80 is formed of a cylindrical shape so as to cover the outside of the filter surface using a non-corrosive plastic or stainless material, the filter 34, the upper plate (32c) of the form that can be detachable with bolts, knots And water purifying devices at the reservoir, characterized in that a plurality of water communication holes 81 are installed at a suitable size and interval on the cylindrical surface. (correction) The method of claim 1, wherein the vertical void outflow facility 20 is a reservoir for rainwater purification and a dual-purpose reservoir for flood prevention and rainwater purification, as well as a flood prevention reservoir, landscaping ponds, sedimentation sites for blocking the outflow of soil during construction and Device for increasing water quality at a reservoir, characterized in that it can be installed as a filtration facility by installing in a reservoir or suspended matter filter paper such as a sedimentation basin or a rainwater pumping station reservoir. According to claim 1, wherein the downflow filtering facility of the vertical void outflow facility 20 is installed in the discharge type rainwater purification reservoir, construction settlement and suspended matter filter paper, the discharge pipe 91 is installed below the filter settle (31) Water purification system at the reservoir, characterized in that the installation of the sump (90)

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