KR200433900Y1 - Apparatus For Screening Overflow Of Stormwater And Combined Sewer Storage Tank - Google Patents

Abstract

The present invention is to provide a sewage storage tank overflow screen device for screening the sewage that is bypassed from the storage tank to the river to filter the pollutants to greatly prevent the pollution of the river. The present invention screens sewage that is bypassed to rivers, etc. in a storage tank, and installs screen nets to filter contaminants (solid matters), while the screen nets continue to wash while filtering the pollutants. It is to install the washing means to remove the. For this reason, pollution of rivers and the like is greatly prevented, and the performance of the screen means is prevented from being degraded, and the maintenance thereof is easy.

Reservoir, Bypass, Screen, Wash

Description

Apparatus For Screening Overflow Of Stormwater And Combined Sewer Storage Tank}

1 is a plan view showing a storage tank overflow water screen device according to the present invention,

2 is a cross-sectional view taken along line II of FIG. 1;

3 is a cross-sectional view taken along the line II-II of FIG. 1;

4 is a bottom perspective view showing a portion A shown in FIG. 1 from below;

5a and 5b is a state of use of the storage tank overflow water screen device according to the present invention,

6 is a view showing a modification of the storage tank in FIG.

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

1: sewage pipe 10: reservoir

11: Separation wall 12: First chamber

13: 2nd chamber 14: Intake pipe

15: drain pipe 16: bypass pipe

17: access cover 18: lifting ring

20: screen mesh 30: washing means

31: Submersible pump 33: Tube

35: ejector 37: air injection pipe

61: fixed plate 63: support means

71: sensor

The present invention is installed in the middle of the sewer pipes, and related to the sewer storage tank overflow screen device used for the storage tank for temporarily storing and regulating the discharged rainwater and confluent sewage (hereinafter referred to as sewage) due to heavy rain, in particular The present invention relates to a sewage storage overflow screen device for screening sewage that is bypassed from a storage tank to a river and the like to filter out contaminants (solid matter) and to automatically clean the pollutants while filtering the contaminants.

In general, in the middle of sewage pipes that collect sewage from various sewers and send them down to the sewage treatment plant, temporary storage and control of sewage flowing in due to the contact and heavy rains of the sewage pipes prevents inundation of the downstream and prevents the sewage treatment plant. It is well known that reservoirs have been established to promote and prevent pollution of rivers. The storage tank is designed to maintain a constant level by forming a bypass space therein and bypassing a part of the excess sewage into a river or the like. However, existing storage tanks do not filter the sewage that is bypassed, and discharge it into the rivers so that solid materials (pollutants) such as panties, fabrics, vinyl fragments, bones, etc., which have been floated with the sewage during heavy rains, flow into the rivers. By providing a cause for polluting rivers and the like.

Accordingly, an object of the present invention is to solve such problems, and provides a sewage storage overflow screen device for greatly preventing pollution such as rivers by screening sewage that is bypassed from a storage tank to a stream and filtering pollutants. It is.

Another object of the present invention is to provide a sewage reservoir overflow screen device for preventing the degradation of the screen means and facilitating its maintenance by automatically removing the contaminants caught on the screen means by automatically cleaning while screening the pollutants. have.

In order to achieve the above object, the present invention has an empty structure inside and is buried so that only the upper surface is exposed in the middle of the sewer pipe, and the interior of the first chamber and the first chamber communicating with the sewer pipe with a separation wall therebetween. A storage tank partitioned by a second chamber for bypassing sewage that overflows the dividing wall from one chamber; A screen net body installed on the partition wall and positioned in the first chamber to screen contaminants flowing over the partition wall to filter contaminants; And a washing means installed in the first chamber, the washing means for cleaning the screen mesh while filtering the contaminants to remove the contaminants caught on the screen mesh.

The washing means is installed in the first chamber and connected to the submersible pump for pumping and pumping the sewage in the first chamber, the submersible pump and the pipe body between the jet (sewage) from the submersible pump Ejector (ejector) for removing contaminants on the screen net by spraying the screen net while forming a flow, and is connected to the surface exposed from the ejector to mix air into the sewage by injecting air into the ejector It is preferably made of an air injection pipe for.

In addition, the fixing plate body is further provided at a predetermined distance from the separating wall toward the first chamber, and the screen net body is preferably installed to be separated in a semicircular shape between the fixing plate body and the separating wall.

In addition, the screen net material is preferably made of stainless steel.

The apparatus may further include a control means installed in the first chamber and electrically connected to a sensor for sensing the water level. The control means may be electrically connected to the submersible pump to control the submersible pump. It is desirable to control the operation.

In addition, it is preferable that the access cover is further installed on the upper surface of the storage tank.

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

Hereinafter, with reference to the accompanying drawings, preferred embodiments of the present invention in detail as follows.

1 is a plan view showing the storage tank overflow water screen device according to the present invention, Figure 2 is a cross-sectional view of the line I-I of Figure 1, Figure 3 is a cross-sectional view of the line II-II of Figure 1, Figure 4 is a bottom portion A in Figure 1 5A and 5B are views showing the use state of the storage tank overflow water screen device according to the present invention, and FIG. 6 is a view showing a modification of the storage tank in FIG.

As also shown in Figure 6, the storage tank overflow water screen device for sewage according to the present invention is connected to the sewage pipe (1) by being installed in the middle of the sewage pipe (1) to expose only the upper surface in the middle of the sewage pipe (1) And a storage tank 10 for storing the sewage at the time of contact of the sewage pipe 1 and during heavy rains. The storage tank 10 has a first wall 12 communicating with the sewer pipe 1 with a partition wall 11 interposed therebetween from the bottom and the partition wall from the first chamber 12 during heavy rain. The first chamber 12 has a structure partitioned by a second chamber 13 for directly bypassing sewage (hereinafter referred to as "overflow water") that overflows 11 into a river or the like. The inlet and drainage pipes 14 and 15 are respectively installed to receive and discharge the contact with the sewer pipe 1 and the sewage. The overflowed water is discharged to a river or the like through a bypass pipe 16 installed on the wall of the second chamber 13. It is preferable that the access cover 17 is installed on the upper surface of the bird tank 10, the access cover 17 is preferably installed toward the second chamber (13). Reference numeral 18 denotes lift rings.

The screen net body 20 is installed on the separation wall 11 toward the first chamber 12. The screen net 20 is responsible for filtering contaminants (solid matter) from the overflow water. The screen net 20 is installed toward the first chamber 12 on the separation wall 11 to screen the overflow water to filter contaminants. The screen net 20 is formed in a semicircular shape between the fixed plate body 61 and the separating wall 11 installed at a predetermined distance from the separating wall 11 toward the first chamber 12. It is installed so that the opening faces downward. The fixed plate body 61 is fixedly installed on the support means 63 fixedly installed on the upper surface of the first chamber 12 so as not to be affected by the sewage. The screen net 20 is preferably installed separately for repair and replacement, preferably made of stainless steel resistant to corrosion.

On the other hand, the first chamber 12 is provided with a washing means 30. The cleaning means 30 has a function of cleaning the screen net 20 while the screen net 20 filters out contaminants to continuously remove contaminants caught on the screen net 20. For this reason, the screen net 20 is not blocked due to the contaminants caught on the surface, and the performance can be continuously filtered out. In addition, there is no need to wash the screen net 20 separately.

The washing device 30 in charge of such a function is installed in the first chamber 12, the submersible pump 31 for pumping and pumping the sewage in the first chamber 12, and the submersible pump 31 ) Is connected with the pipe body 33 therebetween, and sprays the sewage from the submersible pump 31 to the screen mesh 20 while forming a jet stream to contaminate the contaminants caught on the screen mesh 20. Ejector 35 for removal and the air injection pipe 37 for mixing the air into the sewage by injecting air into the ejector 35 is installed so as to be exposed to the water surface from the ejector 35. The ejector 35 removes contaminants trapped on the screen net 20 by spraying jets under the screen net 20. When the air is injected into the ejector 35 through the air injection pipe 37, the size of the jet flow increases, so that the contaminants caught in every corner of the screen net 20 can be effectively removed. In addition, since the air bubbles are formed in the water, contaminants trapped on the screen net 20 are effectively removed.

The washing means 30 is operated under the control of a control means (not shown) such as a control panel equipped with a MICOM. The control means is installed outside the storage tank (10). The control means is installed in the first chamber 12 and electrically connected to the sensor 71 for sensing the water level, and also electrically connected to the submersible pump 31 in accordance with the signal of the sensor 71 The operation of the submersible pump 31 is controlled. The sensor 71 is preferably installed to have the same height as the height of the dividing wall 11, and sends a signal to the control means when the level of the first chamber 12 reaches the height, the control means is Operate the submersible pump 31. For this reason, the automation of the said washing | cleaning apparatus 30 is implement | achieved.

As described above, according to the present invention, there is an effect of greatly preventing pollution of rivers and the like, and preventing the performance of the screen means, that is, the screen mesh, and making its maintenance easier.

Claims (6)

A hollow structure is provided in the interior of the sewage pipe so that only an upper surface thereof is exposed, and an inside thereof overflows the separation wall from the first chamber and the first chamber in communication with the sewage pipe with a separation wall therebetween. A storage tank divided into a second chamber for bypassing the sewage to be made; A screen net body installed on the partition wall and positioned in the first chamber to screen contaminants flowing over the partition wall to filter contaminants; And The sewage storage tank overflow screen device is installed in the first chamber, and includes washing means for cleaning the screen mesh while filtering the contaminants to remove contaminants caught on the screen mesh. According to claim 1, wherein the washing means is installed in the first chamber and the pump for pumping and pumping the sewage in the first chamber, and connected between the submersible pump and the tubular body between the sewage from the submersible pump Is injected into the screen network while forming a jet (ejector) to remove the contaminants caught on the screen network, and is installed to be exposed to the water surface from the ejector to inject air into the ejector Sewer storage tank overflow water screen device, characterized in that consisting of an air injection pipe for mixing air. According to claim 2, wherein the fixed plate body is further installed at a distance from the separation wall toward the first chamber, the screen net is characterized in that the separation between the fixed plate body and the separation wall in a semicircular shape is installed separately Sewer tank overflow screen device for sewerage. According to claim 2, wherein the screen mesh is made of stainless steel sewer tank overflow screen device, characterized in that the material. The method of claim 2, further comprising a control means installed in the first chamber and electrically connected to a sensor for sensing the water level, wherein the control means is electrically connected to the submersible pump according to the signal of the sensor Sewer storage tank overflow water screen device for controlling the operation of the submersible pump. The sewer storage basin overflow screen of claim 1, wherein an access cover is further provided on an upper surface of the reservoir.

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