KR101339617B1 - Priming rain nonpoint pollution filtering devices for bridge and method of the same - Google Patents

Abstract

The present invention provides an apparatus for purifying non-point pollutants from early rain for a bridge and a method for purifying non-point pollutants from early rain for a bridge wherein the apparatus for purifying non-point pollutants from early rain for a bridge effectively purifies and discharges, without back draft or clog, early rain effluent being non-point pollutants such as organic matters, heavy metal, oil, tire dust and strangulating materials able to occur on a bridge deck when it rains. The apparatus for purifying non-point pollutants from early rain for a bridge according to a proper embodiment of the present invention comprises a water collection pipe for early rain and a drainage pipe for later rain diverging from the water collection hole of the lower part of a bridge slab; a non-point pollutant purification tank including a water collection room for early rain capable of collecting early rain being discharged through the perforation of the water collection pipe to a specific height; a non-point pollutant filter device installed inside the non-point pollutant purification tank to filter and discharge foreign materials contained in early rain to the drainage pipe of a bridge; rainwater direction valve for determining the discharge channel of the rainwater introduced from the water collection hole and flowing the rainwater either along the water collection pipe for early rain or the drainage pipe for later rain; a water level detection tool for detecting the water level of the early rain introduced from the non-point pollutant purification tank; and a valve motor for determining the discharge channel of the early rain and the later rain by operating the rainwater direction valve according to the electric signals of the water level detection tool.

Description

Priming rain nonpoint pollution filtering devices for bridge and method of the same}

The present invention relates to an initial excellent runoff water purification device of a bridge and a method thereof, in particular, a reverse flow or clogging of an initial excellent runoff water, which is a nonpoint pollutant such as organic matter, heavy metals, oils, tire dusts and constrictions that may be generated in a bridge during a rainfall. The present invention relates to an initial excellent non-point pollution purification device for bridges and a method for effectively purifying and discharging the gas.

Water pollution sources are classified into point pollutants and nonpoint pollutants. Point pollutants are mainly generated from domestic households and business areas, industrial wastewater discharged from factories, and animal wastewater from large-scale livestock facilities. Tracking is relatively easy and is being managed as a major target for sewage treatment.

On the other hand, non-point pollution sources are pollutants that run out along with surface runoffs when they are exposed to rain. These include fertilizers and pesticides applied on agricultural land. On the bridges and roads, heavy vehicles, heavy oil, oil, tire dust, In the case of rainfall, the early storm water, which is a non-point pollutant, enters the rivers and lakes, especially the drinking water or clean water, as well as the underground water, through the mass drainage line, and pollutes the water quality. It is difficult to manage nonpoint pollution sources such as prediction and quantification due to the large difference between daily and seasonal emissions.

In particular, the effluent from the initial rainfall occurring early in the rainfall has a high concentration of pollutants and a high probability of containing toxic substances such as heavy metals.

The pollutant outflow characteristics in rainy weather show relatively high pollution concentrations in the initial rainfall, and as a result, more than 80% of the pollutants contained in the whole rainfall can be treated with the capacity of storm water treatment facilities for the initial rainfall of about 20mm. Is being reported.

In order to treat the initial non-point pollution source of bridges, various methods such as a method of installing facilities such as a storage type, an infiltration type, a device type, and a method of forming a vegetation are used. And has different application methods depending on site conditions, local conditions, and characteristics of the watershed.

However, the problems of the conventional early boiling point pollution cleaner

First, after the initial rainfall (treatment capacity) corresponding to nonpoint pollution is introduced into the non-point pollution purifier, subsequent rainfalls that are not contaminated with rainwater continue to be introduced. As it was mixed, non-contaminants of the initial excellent water flowed over without being purified, or oil-based contaminants lighter than water floated on the water.

Second, in case of rainfall, non-point pollution should be treated and discharged as much as the amount of rainwater flowing into the initial excellent non-point pollution cleaner. However, if the structure is such that the rainwater is purified while passing through the inside of the filter cartridge, the passing speed is slow due to characteristics of the filter cartridge. In the case of heavy rainfall, it is found that the initial excellent non-point pollution cleaner can not withstand the overload, and the backwash of the rainwater occurs.

Third, contaminants such as sand, dust, cigarette butts, and leaves contained in the initial rainwater are accumulated on the filter cartridge of the purifier or the inside of the purifier, so that the filter cartridge is easily clogged.

In addition, in the conventional initial excellent non-point pollution purification apparatus which collects the initial excellent non-point pollution, precipitates, adsorbs and purifies and discharges, it is common that the discharge port discharged after the purification treatment is located at the middle portion or the upper middle portion of the height of the purification apparatus. The standard of rainwater pollution purification device is largely manufactured, but since the rainwater that has flowed in previously is filled with 70 ~ 80%, the initial rainwater pollution of fresh rainwater is purified and treated in the next rainy season. Inefficient application compared to purifier size.

As a background of the present invention, Korean Unexamined Patent Application Publication No. 10-2007-0106126 proposes an apparatus for purifying an initial stormwater effluent of a non-point source. By oxidizing contaminants adsorbed on the carrier and the activated carbon by using the photocatalyst, the useful life of the activated carbon and the filter is greatly extended, and the replacement and maintenance work of the activated carbon is facilitated.

However, the background art has a structure in which the initial storm flows simultaneously through the purifier and the bypass pipe. Therefore, there is a problem that the pollutants contained in the initial storm passing through the bypass pipe can not be purified.

Korea Patent Registration No. 10-0913315 (Non-point Pollution Reduction Apparatus) Korean Registered Patent No. 10-1005590 (Non-point Pollution Treatment Device for Bridges)

The present invention is the initial excellent non-point pollution purification for bridges to effectively purify and discharge the initial excellent runoff water, which is a non-point pollutant such as organic matter, heavy metals, oils, tire dusts and constrictions that can be generated in the bridge during rainfall, without backflow or clogging. It is an object of the present invention to provide an apparatus and a method thereof.

An initial excellent non-point pollution cleaner for bridges according to a preferred embodiment of the present invention comprises:

An initial excellent water collecting pipe and a subsequent rainfall drain pipe branched and connected under the water collecting hole of the bridge slab;

A non-point pollution purification tank having an initial excellent collecting chamber capable of collecting the initial excellent discharged through the perforations of the initial excellent collecting pipe to a predetermined height;

A non-point pollution filter device installed inside the non-point polluted septic tank for filtering foreign matter contained in the initial rainwater and discharging it to a bridge drain pipe;

An excellent directional valve configured to determine one of an initial excellent collecting pipe and a subsequent rainfall drain pipe by determining a discharge flow path of the rainfall introduced from the water collecting port;

Water level detecting means for detecting the level of initial rainwater introduced into the non-point pollution purification tank;

It characterized in that it comprises a; valve motor for determining the discharge flow path of the initial rainfall and the subsequent rainfall by operating the rain direction valve in accordance with the electrical signal of the water level detecting means.

Further, the nonpoint-

A overflow pipe connected to the bridge drain pipe and having a purified water outlet having a plurality of outlets open at an upper end and distributed in a plurality of sections at a lower height;

A filter cartridge installed at an outer diameter portion of the flow pipe;

And a filter screen provided on the outer diameter portion of the filter cartridge.

In addition, the rain direction valve is characterized in that the forward and backward operation is screwed with the rotating shaft of the valve motor.

In addition, the non-point pollution purification tank is characterized in that it is further provided with a settling chamber in which the perforated plate is positioned to precipitate a secondary precipitate of a smaller size than the primary sediment precipitated in the initial excellent collecting pipe to the lower side of the initial excellent collecting pipe.

On the other hand, the initial excellent non-point pollution purification method for bridges according to a preferred embodiment of the present invention,

Introducing an initial rainwater having a relatively high pollution concentration passing through the water collecting port of the bridge slab into the non-point pollution purification tank via the initial water collecting pipe;

Filtering the initial storm that has flowed into the non-point polluted septic tank through a non-point polluted filter device and discharging it to a bridge drain pipe;

Detecting whether the rainwater flowing into the non-point pollution purification tank has reached a predetermined level with a level detecting means;

When it is detected that the rainwater has reached a certain level, the valve motor installed at the top of the initial excellent water collection pipe is operated to open the upper inlet of the subsequent rainfall drainage pipe with the storm drain valve, and the subsequent rainfall with little or no pollutant concentration is discharged through the bridge rainfall drainage pipe. Passing directly to; characterized by including.

In addition, the rain direction valve is characterized in that the upper inlet of the subsequent rainfall drain pipe is opened during the set time of the timer, and when the set time of the timer is completed, return to the original position to close the upper inlet of the subsequent rainfall drain pipe.

According to the early rain non-point pollution purification device for bridges and the method of the present invention, by installing the non-point pollution initial rainwater purification device in the drain hole in which the catchment is formed in the bridge slab, only the rainwater having a relatively high pollution concentration in the rainwater is collected in the non-point pollution purification device. Subsequent rainfall with little or no pollutant concentration passes directly through the general drain pipe without inflow into the initial rainwater purification system, thereby preventing backflow on the catchment side for subsequent rainfall.

In addition, since the non-point pollution of the early storm with high pollutant concentration is reliably and reliably discharged over time, the effect of non-point pollutant treatment is assured. By installing the outlet at the lower part of the purifier, It is possible to minimize the size of the purification device and thus it is economically effective.

The following drawings, which are attached in this specification, illustrate preferred embodiments of the present invention, and together with the detailed description thereof, serve to further understand the technical spirit of the present invention. It should not be construed as limited.
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an installation view of an initial excellent non-point pollution cleaner for bridges according to the present invention; FIG.
Figure 2 is an assembly view showing a path for the initial excellent water purification of the initial rain non-point pollution purification device for bridges according to the present invention.
Figure 3 is an assembly view showing the path that the subsequent steel ball is purified in the initial excellent non-point pollution purification device for bridges according to the present invention.
Figure 4 is a connection state of the even direction valve and the valve motor applied to the present invention.
Figure 5a is a block diagram of the initial excellent water collecting pipe applied to the present invention.
FIG. 5B is a sectional view of FIG. 5A. FIG.
Figure 6 is a plan view of the perforated plate to precipitate the secondary precipitate in FIG.
Figure 7 is an exploded perspective view of a non-point pollution filter device applied to the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below with reference to the embodiments shown in the accompanying drawings, but the present invention is not limited thereto.

1 and 2, the initial rain non-point pollution purification apparatus 100 is installed with the initial excellent water collecting pipe 20 and the subsequent rainfall drain pipe 22 branched under the water collecting port 12 of the bridge slab 10. The subsequent rainfall drain pipe 22 is connected to the bridge drain pipe 14. The subsequent rainfall drain pipe 22 is provided on the same straight line as the water collecting port 12, and the initial excellent drain pipe 20 is disposed side by side on one side of the subsequent rainfall drain pipe 22.

At the branch portions of the initial excellent water collecting pipe 20 and the subsequent rainfall drain pipe 22, the rainwater direction valve 52 for adjusting the drainage direction of the water collecting port 12 is installed, and the rainwater direction valve 52 is a valve as shown in FIG. 4. It is connected to the motor 50 to move forward and backward. The rainwater direction valve 52 is screwed with the rotating shaft 5a of the valve motor 50 to move forward and backward. Rainwater direction valve 52 is a semi-circular cylinder form, the valve guide 52a is formed on the side. Accordingly, the rainwater direction valve 52 is moved and guided by inserting the valve guide 52a into the valve guide groove 53 formed in the branch passage wall.

Therefore, when the forward direction of the valve motor 50, the rain direction valve 52 moves forward to block the inlet of the subsequent rainfall drain pipe 22 and open the inlet of the initial excellent water collecting pipe 20 as shown in FIG. In addition, in the reverse rotation of the valve motor 50, the rain direction valve 52 moves backward as shown in FIG. 3 to open both the upper inlet of the subsequent rainfall drain pipe 22 and the upper inlet of the initial excellent collecting pipe 20. Therefore, the rainwater collected by the water collecting port 12 is drained by selecting any one of the initial excellent water collecting pipe 20 and the subsequent rainfall drain pipe 22 according to the moving position of the rainwater direction valve 52.

The initial excellent water collecting pipe 20 is configured to pass only the initial excellent rain with a relatively high pollution concentration during rain. The initial excellent collection pipe 20 is cylindrical, as shown in Figs. 5a and 5b, the top is open, and the perforations 20a and 20b are distributed on the outer circumferential surface and the bottom bottom surface. At this time, the perforation (20b) of the bottom bottom surface is formed smaller than the perforation (20a) of the outer peripheral surface.

Subsequent rainfall drain pipe 22 serves to directly pass a small amount of subsequent rainfall without a pollution concentration to bridge drain pipe 14.

A non-point pollution purification tank 26 having an initial excellent collecting chamber 26a for collecting the initial excellent discharged from the initial excellent collecting pipe 20 is provided. The non-point pollution purification tank 26 is provided to be supported by the bridge slab 10 through the hanger 27. At this time, the hanger 27 may be connected to the upper end is fixed to the bridge slab through the chemical anchor (27a) through the ring 27b installed on the upper surface of the non-point pollution purification tank 26.

The non-point pollution filter device 30 is provided inside the non-point pollution purification tank 26. The non-point pollution filter device 30 functions to filter the foreign matter contained in the initial rainwater and discharge it to the bridge drain pipe 14. The non-point pollution filter device 30 has a overflow pipe 31a having an open flow outlet 31a at the top as shown in FIG. 7 and a purified water outlet 31b which is tightly distributed to the outer circumferential surface in a section of a predetermined height at the bottom and And a filter cartridge 32 provided in the outer diameter portion of the overflow pipe 31 and a filter screen 33 provided in the outer diameter portion of the filter cartridge 32. At this time, the drain pipe (31) is fixed to the bottom of the non-point polluted water purification tank (26) through a rubber packing (35) for preventing water leakage and connected to the bridge drain pipe (14).

The non-point polluted septic tank 26 is provided with a water level sensing means 40 for sensing the level of the introduced initial storm. In the present embodiment, the water level detecting means 40 operates on / off (off) according to the position of the float 41 and the position of the float 41 depending on the level of the non-point pollution purification tank 26. It consists of a sensing switch 42. Thus, the water level detecting means 40 is configured in a way of switching to turn on / off the detection switch 42 by floating the float 41, but the present invention is not limited to this method.

The motor control device 60 for controlling the valve motor 50 is electrically connected to the water level detecting means 40. The motor controller 60 includes a timer 62. The timer 62 sets the time for which the sensing switch 41 of the water level detecting means 40 maintains the on operation. For example, the timer 62 is preferably set to 24 hours to 36 hours or more, but may be set in consideration of local characteristics.

Therefore, during the set time of the timer 62, the valve motor 50 is reversed by the ON operation of the sensing switch 42, and the rainwater direction valve 52 maintains the retracted position so that the subsequent rainfall drain pipe 22 opens and flows in from the catchment port. The rainwater that flows out of the bridge drain pipe 14 only through the subsequent rainfall drain pipe 22. In addition, when the set time of the timer 62 ends, the valve motor 50 is rotated forward by the detection operation of the sensing switch, and the even direction valve 52 maintains the forward position (the home position), thereby closing the upper inlet of the subsequent rainfall drain pipe 22. The initial excellent water collecting pipe 22 is connected to the water collecting port 12. At this time, the power supply of the valve motor 50 and other accessory electrical components may be a battery.

On the other hand, below the initial excellent water collecting pipe 20, the sedimentation chamber 29 in which the perforated plate 27 for depositing secondary sediment having a smaller size than the primary sediment deposited in the initial excellent water collecting pipe 20 is located in a non-point pollution purification tank. It may be provided in (26).

The operation of the present embodiment thus configured will be described.

First, when there is no rain, since all of the collected polluted water is discharged inside the non-point pollution septic tank 26, the mouth 41 of the water level detecting means 40 is lowered and the detection switch 42 is in an off state. Accordingly, the valve motor 50 is rotated forward by the motor controller 60 so that the rainwater direction valve 52 is in the forward position, and the subsequent rainfall drain pipe 22 is closed by the rainwater direction valve 52 at the upper inlet. The initial excellent water collecting pipe 20 is connected to the water collecting port 12.

When rainfall occurs in this state, the initial rainfall shown by the arrow in FIG. 2 passes through the catch port 12 of the bridge slab 10. At this time, the initial rainfall is relatively high concentration of pollutants. The initial rainwater does not pass through the subsequent rainfall drain pipe 22 blocked by the rainwater direction valve 52, but passes only through the initial rainwater collecting pipe 20 and flows into the non-point pollution purification tank 26.

At this time, among the pollutants contained in the initial storm, small trash such as cigarette butts and fallen leaves are collected in the early storm collector pipe 20. The heavy contaminants such as sand or dust are precipitated out of the initial excellent water collecting pipe 20 and passed through the perforated plate 27, and then precipitated as secondary sediment at the bottom of the non-point pollution purification tank 26.

Subsequently, the initial excellent water exiting the initial excellent collection pipe 20 is filtered through the non-point pollution filter device 30 and then discharged to the bridge drain pipe 14. At this time, the initial rainwater is first passed through the filter screen 33 and then purged through the filter cartridge 32 in the second and then discharged through the purified water discharge port 31c to the bridge drain pipe 14.

As described above, the present invention collects contaminants such as cigarette butts and lead leaves in the initial excellent collection pipe 20 during the initial rain, and is purified by the filter cartridge 32 so that the initial rainwater does not flow backward or cannot be cleaned.

Then, the water level sensing means 40 senses whether the stormwater that has flowed into the non-point polluted water purification tank 26 has reached a certain water level.

At this time, when it is detected that the rainwater has reached a full water level, for example, the detection switch 42 is turned on in accordance with the rise of the float of the water level detecting means 40, and the on-operated signal is transmitted to the motor controller 60 to provide a valve. The motor 50 rotates in reverse and the rainwater direction valve 52 moves backward as shown in FIG. 3. Therefore, the subsequent rainfall drain pipe 22 is connected in a straight line with the catch port 12.

In this case, the state in which the reverse rotation operation of the valve motor 50 is completed by the timer 62 included in the motor controller 60 is continuously maintained for a set time (a time set in anticipation of the time when the rain continues to fall). The directional valve 52 is left open for the subsequent rainfall drain pipe 22 for a set time.

Therefore, the subsequent rainfall with little or no pollutant concentration in the direction indicated by the arrow of FIG. 3 does not flow into the initial excellent collecting pipe 20 but flows into the subsequent rainfall drain pipe 22 and passes directly through the bridge drain pipe 14.

Thereafter, when the set time of the timer 62 elapses, the valve motor 50 is rotated forward by the motor control device 60 again, and the rainwater direction valve 52 is in the original position, so that the subsequent rainfall drain pipe 22 is closed.

As described above, according to the present invention, by installing the initial rainwater non-pollution purification device 100 in the drain hole in which the catch port is formed in the bridge slab, only the rainwater having a relatively high pollution concentration is collected in the non-point pollution purification device, and the pollution concentration is less or less subsequent. Rainfall is discharged directly through the general bridge drain pipe without inflow into the initial rainwater purification system, thereby preventing the catchment backflow for subsequent rainfall.

In addition, since the non-point pollution of the early storm with high pollutant concentration is reliably and reliably discharged over time, the effect of non-point pollutant treatment is assured. By installing the outlet at the lower part of the purifier, It is possible to minimize the size of the purification device and thus it is economically effective.

On the other hand, the initial excellent non-point pollution purification apparatus for bridges of the present invention may be installed below the catchment, respectively, as shown in Figure 1, it may be installed at the position of 'B' corresponding to the end of the bridge drain pipe.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is evident that many alternatives, modifications and variations will be apparent to those skilled in the art in light of the above teachings. will be. The invention is not limited by these variations and modifications, but is limited only by the claims appended hereto.

20: Early stormwater collector
22: Follow-up rain water pipe
26: Non-point polluted septic tank
30: Non-point pollution filter device
40: Water level sensing means
50: valve motor
52: rainwater valve

Claims (6)

An initial excellent water collecting pipe 20 and a subsequent rainfall drain pipe 22 which are branched and connected under the water collecting port 12 of the bridge slab 10;
A non-point pollution purification tank 26 having an initial excellent collecting chamber 26a capable of collecting the initial excellent discharge discharged through the perforations 20a and 20b of the initial excellent collecting pipe 20 to a predetermined height;
A non-point pollution filter device (30) installed inside the non-point polluted water purification tank (26) to filter the foreign matter contained in the initial rainwater and discharge the foreign matter to the bridge drain pipe (14);
An excellent direction valve 52 for determining one of the initial excellent collecting pipe 20 and the subsequent rainfall drain pipe 22 by determining a discharge flow path of the rainfall introduced from the water collecting port 12;
Water level detecting means (40) for detecting the initial water level introduced into the non-point pollution purification tank (26);
And a valve motor 50 which operates the rainwater direction valve 52 according to the electrical signal of the water level detecting means 40 to determine the discharge flow path of the initial rainfall and the subsequent rainfall.
In the non-point pollution purification tank 26, a precipitation chamber in which a perforated plate 27 for depositing a secondary precipitate having a smaller size than the primary precipitate deposited in the initial excellent collecting pipe 20 is disposed below the initial excellent collecting pipe 20. The initial excellent non-point pollution purification device for bridges, characterized in that it further comprises 29). The method of claim 1,
The non-point pollution filter device (30)
A overflow pipe 31 having an open flow outlet 31a at an upper end and a plurality of purified water outlets 31b distributed in a plurality of sections at a lower end thereof and connected to the bridge drain pipe 14;
A filter cartridge (32) installed at an outer diameter portion of the flow pipe (31);
And a filter screen (33) provided on an outer diameter portion of the filter cartridge (32). The method of claim 1,
Rainwater direction valve 52 is the initial excellent non-point pollution purification device for a bridge, characterized in that the screw is coupled to the rotating shaft of the valve motor 50 to move forward and backward. delete delete delete

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