KR102527754B1 - First flush rainwater treating apparatus for filter cleaning fucntion - Google Patents

Abstract

The present invention is formed in the inner space of the first filter tank 110, the second filter tank 120, the third filter tank 130, the fourth filter tank 140, and the fourth filter tank 140 that sequentially filter the initial rainwater. and a filter network composed of an upper filter network 142 and a lower filter network 143, and a filter member 140 composed of a filter medium 144 filled in the inner space of the filter network, and compressed air or high-pressure water is rotated to spray the filter. To remove contaminants adsorbed to the filter net and the filter medium 144, including the injection pipe rotation unit 150, the fifth filter tank 160, and the sixth filter tank 170, which clean the unit 140, Disclosed is an initial rainwater treatment device having a filter purification function.

Description

Initial rainwater treatment device with filter purification function {FIRST FLUSH RAINWATER TREATING APPARATUS FOR FILTER CLEANING FUCNTION}

The present invention is configured to spray high-pressure air and high-pressure water into the filter unit to remove contaminants adsorbed on the filter net and filter medium, and to remove foreign substances without blind spots by rotating the spray, equipped with a filter purification function. It is about the initial rainwater treatment device.

As is well known, in the case of nonpoint pollutants remaining on the ground surface, it flows into public waters such as rivers, bays, and lakes or groundwater along with rainwater falling during rain, especially during initial rain. It is also introduced into public water bodies such as inland bays and lakes, or into groundwater without being purified.

Accordingly, in order to prevent contamination from non-point pollution sources, facilities for purifying initial rainwater are being utilized.

For example, as a technology for purifying initial rainwater containing non-point pollution sources, fixed screens such as coarse screens and fine screens have been installed and used in conventional rainwater purification treatment methods. When clogging occurs, the entire device becomes insolubilized, and continuous use of the filter causes adsorption of foreign substances to the filter, resulting in deterioration in purification performance.

Therefore, there is a need for a technique capable of minimizing frequent replacement of a screen or filter for purifying rainwater for maintenance and minimizing direct input of workers for internal cleaning.

Korean Registered Patent Publication No. 10-1491867 (Initial rainwater effluent non-point pollutant purification treatment device, 2005.05.27) Korean Registered Patent Publication No. 10-0779513 (Initial excellent purification treatment device, 2007.11.27)

The technical problem to be achieved by the spirit of the present invention is to spray high-pressure air and high-pressure water into the filter unit to remove contaminants adsorbed on the filter net and filter medium, and to remove foreign substances without blind spots by rotating the spray. It is to provide an initial rainwater treatment device having a filter purification function.

In order to achieve the above object, an embodiment of the present invention is a rainwater inlet hole into which initial rainwater flows from one side, and a first partition wall formed at a predetermined height on the other side so that the initial rainwater introduced through the rainwater inlet hole is collected; a first filtering tank composed of a first screen formed on the first partition to be submerged in rainwater; a second filter tank, into which rainwater filtered by the first screen is introduced from one side, and composed of a second partition wall formed at a certain height on the other side, and a second screen formed on the second partition wall so as to be submerged in rainwater; Rainwater filtered by the second screen flows in from one side, a third partition wall formed at a certain height on the other side, and a third screen formed at an upper end of the third partition wall to filter rainwater passing through the third partition wall Consisting of, the third filtration tank; a fourth filter tank formed by a fourth partition wall formed to face the third partition wall and having a lower part spaced apart from the floor at a predetermined height so that rainwater flows; a filter unit formed between the third partition wall and the fourth partition wall of the fourth filter tank in the longitudinal direction and composed of a filter net composed of an upper filter net and a lower filter net, and a filter medium filled in the inner space of the filter net; One or more lines of pneumatic injection pipes inserted across the filter net from the fourth partition wall and rotatably arranged to inject compressed air, and alternately arranged with the pneumatic injection pipes and rotatably arranged to inject high-pressure water One or more lines of high-pressure injection pipes, first rotary connectors extending from one end of the high-pressure injection pipes through the fourth bulkhead, and timing to interlock by being fastened to the first sprocket gears respectively formed in the first rotary connectors A belt, a reduction gear stage meshing with a second sprocket gear formed in one of the first rotation connectors, and an electric motor meshing with a rotation shaft of the reduction gear stage to provide rotational driving force, wherein the The other end of the high-pressure injection pipe is rotatably coupled to the third partition wall to remove contaminants adsorbed to the filter net and the filter medium through rotational injection of the high-pressure injection pipe, a spray pipe rotation unit; a fifth filter tank composed of a fifth partition wall formed at a predetermined height opposite to the fourth partition wall and a fifth screen formed at a predetermined height to be exposed from the surface of the rainwater; and a sixth filtration tank for temporarily storing rainwater purified through the fifth screen and draining the rainwater to the outside through a rainwater discharge pipe.

Here, the injection pipe rotation part is coupled to a second rotation connection pipe extending from one end of the pneumatic injection pipe through the fourth partition wall and a third sprocket gear formed in the second rotation connection pipe, respectively, to interlock the timing. A belt, a reduction gear stage meshing with a fourth sprocket gear formed in one of the second rotation coupling pipes, and an electric motor meshing with the rotation shaft of the reduction gear stage to provide rotational driving force, further comprising: The other end of the pneumatic injection pipe is rotatably coupled to the third partition wall, so that pollutants adsorbed to the filter net and the filter medium can be removed through rotational injection of the pneumatic injection pipe.

The filter unit may further include a high-pressure cleaning unit including a high-pressure cleaning pipe that is spaced apart from an upper end or a lower end of the filter unit and injects compressed air toward the filter net, and a compressor that supplies compressed air to the high-pressure tube.

The method may further include a pump for pumping rainwater stored in the sixth filter tank, and a rainwater supply pipe for supplying rainwater from the pump to the high-pressure injection pipe.

In addition, a high-pressure washing spray nozzle branching from the rainwater supply pipe and spraying high-pressure water from an upper end of the third screen may be further included.

In addition, a plurality of injection holes formed through the high-pressure injection pipe may be spaced apart at regular intervals in the longitudinal direction of the high-pressure injection pipe and radially arranged along an outer circumferential surface of the high-pressure injection pipe.

In addition, the plurality of injection holes formed through the high-pressure injection pipe may be spaced apart at regular intervals in a spiral direction or wave pattern direction of the high-pressure injection pipe, and may be radially arranged along the outer circumferential surface of the high-pressure injection pipe.

According to the present invention, it is configured to spray high-pressure air and high-pressure water into the filter unit to remove contaminants adsorbed on the filter net and filter medium, and to remove foreign substances without blind spots by rotating the spray, and the replacement cycle of the filter unit It is possible to extend the service life by extending the filter medium, to increase the spray range of high-pressure air or high-pressure water by flowing the filter medium, to improve the efficiency of rainwater purification, and to prevent safety accidents that may occur when workers enter the filter tank directly. It works.

1 shows a schematic configuration diagram of an initial rainwater treatment device having a filter purification function according to an embodiment of the present invention.
FIG. 2 illustrates cross-sectional structures of a filter unit and an injection pipe rotation unit of the initial rainwater treatment device having a filter purification function of FIG. 1 .
FIG. 3 is a separate view illustrating a filter unit and an injection pipe rotation unit of the initial rainwater treatment device having a filter purification function of FIG. 1 .
FIG. 4 is a separate view of the high-pressure injection pipe of the initial rainwater treatment device having the filter purification function of FIG. 1 .
FIG. 5 shows a modified example of the high pressure injection pipe of FIG. 1 .

Hereinafter, embodiments of the present invention having the above-described characteristics will be described in more detail with reference to the accompanying drawings.

The initial rainwater treatment device having a filter purification function according to an embodiment of the present invention includes a first filter tank 110, a second filter tank 120, and a third filter tank 130 sequentially filtering the initial rainwater as a whole. The fourth filter tank 140, the filter net formed in the inner space of the fourth filter tank 140 and composed of the upper filter net 142 and the lower filter net 143, and the filter medium 144 filled in the inner space of the filter net The configured filter unit 140 and compressed air or high-pressure water are sprayed to clean the filter unit 140, including a spray tube rotating unit 150, a fifth filter tank 160, and a sixth filter tank 170. Thus, the main point is to remove contaminants adsorbed on the filter net and the filter medium 144.

Referring to FIGS. 1 to 5 , the initial rainwater treatment device having a filter purification function according to an embodiment of the present invention will be described in detail.

First, the first filter tank 110 includes a rainwater inlet hole 111 into which initial rainwater flows from one side, and a first partition wall formed at a certain height on the other side so that the initial rainwater introduced through the rainwater inlet hole 111 is collected. 112) and a first screen 113 formed on the first partition wall 112 so as to be submerged in rainwater and filtering foreign matter of a certain size or larger, and filtering the initial rainwater primarily.

Here, the initial rainwater includes nonpoint sources of pollution that have remained on the ground surface and have been swept down together by rainwater.

Next, the second filter tank 120 has rainwater filtered by the first screen 113 flowing from one side, and a second partition wall 121 formed at a certain height on the other side, and a second partition wall 121 to be submerged in rainwater It is composed of a second screen 122 formed on the screen to filter foreign matter of a certain size or more, and secondarily filters rainwater.

Next, in the third filter tank 130, rainwater filtered by the second screen 122 is introduced from one side, and a third partition wall 131 formed at a certain height on the other side, and a third partition wall 131 not to be submerged in rainwater It is composed of a third screen 132 formed at the upper end of the third partition wall 131 to filter foreign substances of a certain size or more from the rainwater passing through the third partition wall 131 to filter the rainwater tertiarily.

Next, the fourth filter tank 140 is formed by the fourth partition wall 141 formed facing the third partition wall 131 and having a lower part spaced apart from the floor at a predetermined height so that rainwater flows through the lower area.

Next, referring to FIGS. 1 to 3, the filter unit 140 is formed extending in the longitudinal direction between the third partition wall 131 and the fourth partition wall 141 of the fourth filter tank 140, and the upper filter It is composed of a filter net composed of a net 142 and a lower filter net 143, and a filter medium 144 filled in the inner space of the filter net.

Here, the filter medium 144 may be sand, gravel, crushed stone, zeolite, activated carbon, or dustproof coal that can adsorb or deodorize fine foreign substances in rainwater.

Next, referring to FIGS. 1 to 3 , the injection pipe rotation unit 150 is inserted into the filter medium 144 across the filter net from the fourth partition wall 141 and is arranged to be rotatably compressed toward the filter medium 144. One or more lines of pneumatic injection pipes 151 for injecting air, and the pneumatic injection pipes 151 are alternately arranged left and right or up and down to be rotatably arranged, so that from the external reservoir through the pump 172 or a separate external pump. One or more lines of high-pressure injection pipes 152 for injecting the provided high-pressure water toward the filter medium 144, and a first rotary connection pipe extending from one end of the high-pressure injection pipe 152 through the fourth partition wall 141 ( 153), a timing belt 154 that is fastened to and interlocked with the first sprocket gear 153a formed in the first rotation connector 153, and a first rotation connector of one of the first rotation connectors 153 It consists of a reduction gear stage (not shown) meshing with the second sprocket gear 155 formed at 153, and an electric motor 156 meshing with the rotation shaft of the reduction gear stage to provide rotational driving force.

Here, the other end of the high-pressure injection pipe 152 is rotatably coupled to the third partition wall 131 via a bearing (not shown) to rotate the high-pressure injection pipe 152 by the rotational drive of the electric motor 156. By uniformly spraying high-pressure water to the filter medium 144, while vibrating the filter medium 144 vertically and horizontally, contaminants such as foreign substances adsorbed on the filter net and the filter medium 144 are physically removed by the high-pressure water, and the filter unit ( 140) is removed and taken out to the outside to eliminate the inconvenience of having to be cleaned by the operator himself, and to extend the replacement cycle of the filter member 144 so that the filter unit 140 can be conveniently maintained.

On the other hand, although not shown, the filter unit 140 includes a sensor for measuring the contamination level of the filter medium 144 or the turbidity of the fourth filter tank 140, and periodically corresponding to the contamination level or turbidity of a predetermined standard or higher detected by the sensor. A control unit may be included to control a pump providing high-pressure water to the electric motor 156 and the high-pressure injection pipe 152 .

In addition, although not shown, the injection pipe rotation unit 150 is formed to extend from one end of the pneumatic injection pipe 151 through the fourth partition wall 141 in the same manner as the rotation configuration of the high pressure injection pipe 152. A rotation connector, a timing belt that is fastened to and interlocked with a third sprocket gear formed on the second rotation connector, and a reduction gear meshed with a fourth sprocket gear formed on one of the second rotation connectors. The other end of the pneumatic injection pipe 151 is rotatably coupled to the third partition wall 131 to rotate the pneumatic injection pipe 151 by further including an electric motor geared to the end and the rotation shaft of the reduction gear stage to provide rotational driving force. Through spraying, pollutants adsorbed on the filter net and the filter medium 144 can be removed, and the amount of dissolved oxygen in the rainwater can be increased to reinforce deodorization and purification functions.

In addition, a cleaning high-pressure pipe 181 spaced apart from the top or bottom of the filter unit 140 and spraying compressed air toward the upper filter network 142 or the lower filter network 143 of the filter network, and the high-pressure pipe 181 It further includes a high-pressure cleaning unit 180 including a compressor 182 that provides compressed air to perform not only internal cleaning of the filter net by the pneumatic injection pipe 151, but also external cleaning of the filter net, blind spot. It is also possible to keep clean by removing contaminants adsorbed on the inside and outside of the filter net. Here, the cleaning high-pressure pipe 181 may be arranged in more than one line, or a plurality of injection holes may be formed toward the filter net.

Next, the fifth filter tank 160 is composed of a fifth partition wall 161 formed at a predetermined height to face the fourth partition wall 141 and a fifth screen 162 formed at a predetermined height to be exposed from the surface of the rainwater.

Here, the fifth partition wall 161 may be formed at the same height as the ceiling, and the fifth screen 162 may filter foreign matter of a predetermined size or more from rainwater passing through the lower end of the fourth partition wall 141 .

Next, the sixth filtration tank 170 temporarily stores rainwater purified through the fifth screen 162 and drains it to the outside through the rainwater discharge hole 171 .

On the other hand, further comprising a pump 172 for filtering and pumping rainwater that has been finally purified and stored in the sixth filter tank 170, and a rainwater supply pipe 173 for supplying rainwater from the pump 172 to the high-pressure injection pipe 152 In addition, high-pressure water may be supplied to the high-pressure injection pipe 152 by recycling purified rainwater.

In addition, by branching from the rainwater supply pipe 173 or directly pumping from the sixth filtration tank 170, it further includes a high-pressure washing spray nozzle 174 for spraying high-pressure water from the top of the third screen 132, Foreign substances attached to the screen 132 may be removed by washing with high-pressure water, and the same may be applied to the top of the fifth screen 162 .

Meanwhile, FIG. 4 is a separate view of the high-pressure injection pipe of the initial rainwater treatment device having the filter purification function of FIG. 1. Referring to this, as shown in (a) of FIG. 4, the high-pressure injection pipe 152 The plurality of injection holes 152a formed through are spaced apart at regular intervals in the longitudinal direction of the high pressure injection pipe 152, and are based on the central axis of the high pressure injection pipe 152 along the outer circumferential surface of the high pressure injection pipe 152. Arranged radially, or as shown in (b) of FIG. 4, a plurality of injection holes 152a formed through the high pressure injection pipe 152 are formed in a spiral direction or a wavy direction of the high pressure injection pipe 152. They are spaced apart at regular intervals and arranged radially along the outer circumferential surface of the high-pressure injection pipe 152 so that the high-pressure injection pipe 152 rotates while uniformly spraying the high-pressure water to the filter medium 144.

In addition, FIG. 5 shows a modified example of the high-pressure injection pipe of FIG. 1. Referring to this, the jet hole 152a of the high-pressure injection pipe 152 has wings 152b protruding along the outer circumferential surface, The injection range can be expanded by making a gap by flowing the adjacent filter medium 144 and spraying the high-pressure water to the distant filter medium 144, and the high-pressure water is sprayed on various surfaces of the filter medium 144 so that the filter medium 144 ) can also increase the removal efficiency of contaminants adsorbed on it.

Alternatively, although not shown, it may be formed in a concave shape rather than the wing 152b protruding along the outer circumferential surface of the high-pressure injection pipe 152 to realize an effect similar to that of the wing 152b.

Here, the above-mentioned configuration of the injection hole 152a and the wing 152b may be equally applied to the pneumatic injection pipe 151 to realize the same effect.

Therefore, the initial rainwater treatment device having the filter purification function as described above is configured to inject high-pressure air and high-pressure water into the filter unit to remove contaminants adsorbed to the filter net and the filter medium, and rotate the spray Foreign substances can be removed without a blind spot, the lifespan can be extended by extending the replacement cycle of the filter part, and the rainwater purification efficiency can be improved by expanding the spray range of high-pressure air or high-pressure water by flowing the filter medium, and the operator can directly It is possible to prevent safety accidents that may occur by entering the filter tank.

The embodiments described in this specification and the configurations shown in the drawings are only one of the most preferred embodiments of the present invention, and do not represent all of the technical spirit of the present invention, so various equivalents that can replace them at the time of this application. It should be understood that there may be waters and variations.

110: first filtration tank 111: rainwater inlet hole
112: first bulkhead 113: first screen
120: second filtration tank 121: second bulkhead
122: second screen 130: third filtration tank
131: third bulkhead 132: third screen
140: 4th filtration tank 141: 4th bulkhead
142: upper filter network 143: lower filter network
144: filter medium 150: spray pipe rotating part
151: pneumatic injection pipe 152: high pressure injection pipe
153: first rotation connector 154: timing belt
155: second sprocket gear 156: electric motor
160: 5th filtration tank 161: 5th bulkhead
162: 5th screen 170: 6th filtration tank
171: rainwater discharge hole 172: pump
173: rainwater supply pipe

Claims (7)

A rainwater inlet hole into which initial rainwater flows from one side, a first partition wall formed at a certain height on the other side so that the initial rainwater introduced through the rainwater inlet hole is collected, and a first screen formed on the first partition wall to be submerged in rainwater configured, the first filtration tank;
a second filter tank, into which rainwater filtered by the first screen is introduced from one side, and composed of a second partition wall formed at a certain height on the other side, and a second screen formed on the second partition wall so as to be submerged in rainwater;
Rainwater filtered by the second screen flows in from one side, a third partition wall formed at a certain height on the other side, and a third screen formed at an upper end of the third partition wall to filter rainwater passing through the third partition wall Consisting of, the third filtration tank;
a fourth filter tank formed by a fourth partition wall formed to face the third partition wall and having a lower part spaced apart from the floor at a predetermined height so that rainwater flows;
a filter unit formed between the third partition wall and the fourth partition wall of the fourth filter tank in the longitudinal direction and composed of a filter net composed of an upper filter net and a lower filter net, and a filter medium filled in the inner space of the filter net;
One or more lines of pneumatic injection pipes inserted across the filter net from the fourth partition wall and rotatably arranged to inject compressed air, and alternately arranged with the pneumatic injection pipes and rotatably arranged to inject high-pressure water One or more lines of high-pressure injection pipes, first rotary connectors extending from one end of the high-pressure injection pipes through the fourth bulkhead, and timing to interlock by being fastened to the first sprocket gears respectively formed in the first rotary connectors A belt, a reduction gear stage meshing with a second sprocket gear formed in one of the first rotation connectors, and an electric motor meshing with a rotation shaft of the reduction gear stage to provide rotational driving force, wherein the The other end of the high-pressure injection pipe is rotatably coupled to the third partition wall to remove contaminants adsorbed to the filter net and the filter medium through rotational injection of the high-pressure injection pipe, a spray pipe rotation unit;
a fifth filter tank comprising a fifth partition wall formed at a predetermined height opposite to the fourth partition wall and a fifth screen formed at a predetermined height to be exposed from the surface of the rainwater; and
A sixth filter tank for temporarily storing rainwater purified through the fifth screen and draining it to the outside through a rainwater discharge pipe;
The injection pipe rotation unit is coupled to a second rotation connection pipe extending from one end of the pneumatic injection pipe through the fourth partition wall and a third sprocket gear formed in the second rotation connection pipe, respectively, and a timing belt for interlocking Further comprising a reduction gear stage meshing with a fourth sprocket gear formed in one of the second rotation coupling pipes and an electric motor meshing with the rotation shaft of the reduction gear stage to provide rotational driving force,
The other end of the pneumatic injection pipe is rotatably coupled to the third partition wall to remove contaminants adsorbed to the filter net and the filter medium through rotational injection of the pneumatic injection pipe,
The filter unit includes a sensor for measuring the contamination level of the filter medium or the turbidity of the fourth filter tank, and periodically corresponding to the contamination level or turbidity above a certain standard detected by the sensor to provide high-pressure water to the electric motor and the high-pressure injection pipe Including a control unit for controlling the pump,
In the injection hole of the high-pressure injection pipe, wings are formed protruding along the outer circumferential surface,
Initial rainwater treatment device equipped with a filter purification function.
delete According to claim 1,
A high-pressure cleaning unit including a high-pressure cleaning pipe spaced apart from the upper or lower end of the filter unit and injecting compressed air toward the filter net, and a compressor supplying compressed air to the high-pressure tube, characterized in that it further comprises,
Initial rainwater treatment device equipped with a filter purification function.
According to claim 1,
Characterized in that it further comprises a pump for pumping rainwater stored in the sixth filter tank, and a rainwater supply pipe for supplying rainwater from the pump to the high-pressure injection pipe.
Initial rainwater treatment device equipped with a filter purification function.
According to claim 4,
Characterized in that it further comprises a high-pressure washing spray nozzle branching from the rainwater supply pipe and spraying high-pressure water from the top of the third screen,
Initial rainwater treatment device equipped with a filter purification function.
According to claim 1,
Characterized in that the plurality of injection holes formed through the high-pressure injection pipe are spaced apart at regular intervals in the longitudinal direction of the high-pressure injection pipe and arranged radially along the outer circumferential surface of the high-pressure injection pipe,
Initial rainwater treatment device equipped with a filter purification function.
According to claim 1,
A plurality of injection holes formed through the high-pressure injection pipe are spaced apart at regular intervals in a spiral direction or wave pattern direction of the high-pressure injection pipe, and arranged radially along the outer circumferential surface of the high-pressure injection pipe. Characterized in that,
Initial rainwater treatment device equipped with a filter purification function.

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