KR20100005483A - Vortex type treatment apparatus for early rainwater with a screen - Google Patents

Abstract

PURPOSE: A vortex type rainwater separator having a screen inside is provided to filter floating materials more efficiently and stably, and to remove contaminated materials included in rain water with a vortex phenomenon. CONSTITUTION: A vortex type rainwater separator having a screen includes a man hole main body(10), a rain water inflow pipe(20), a deep plate(30), a cylindrical screen(40), a rain water overflow pipe(50), a precipitate storage(60), a benching skirt(70), a dredge pipe(80), a sub screen(90), and a cover(100). A receiving space is formed to receive rain water of the constant quantity. A circular space(35) is connected to the rain water overflow pipe. The sub screen filters adulterations included in the rain water. The dredge pipe has an expansion part(85) of a cone shape. The expansion part is located between the bottom part of the deep plate, and the top of the benching skirt.

Description

Vortex Type Rain Separator with Screen {VORTEX TYPE TREATMENT APPARATUS FOR EARLY RAINWATER WITH A SCREEN}

The present invention relates to a vortex-type rainwater separator that removes contaminants contained in rainwater by using vortex phenomena in relation to stormwater treatment facilities installed on the ground. It also relates to a vortex-type rainwater separator with a screen inside the device to filter out stably.

Rainwater separators are widely adopted to separate only rainwater that does not contain contaminants from sewage, including contaminants such as fine solids and suspended solids. Such storm separators can be classified into screen separators and vortex separators. The screen separator is installed on the sewage or rainwater flowing through the passage, and has a screen in which fine holes are formed in a regular pattern. Therefore, contaminants such as solids and suspended solids contained in rainwater or sewage are filtered through the screen, and the rainwater or sewage from which the contaminants are filtered is discharged into the stream through the outflow pipe.

The screen separator adopts a method of filtering the contaminants included in the rainwater using a screen net with fine holes, so that the screen separator can be easily removed from the rainwater has a structural advantage. However, contaminants with smaller particles compared to the size of the through holes formed on the screen are not treated, and the entire process is required because the contaminants frequently block the through holes and require continuous cleaning. There is a disadvantage of poor efficiency and stability. Therefore, in order to solve the problem of the screen separator, the vortex separator is widely used recently.

The vortex separator employs a method in which sewage containing contaminants is rotated in a cylindrical separator vessel to cause the contaminants to fall to the bottom of the vessel by gravity. Such vortex separators induce contaminants to the bottom of the container by using the sedimentation effect caused by vortex phenomena, and thus have an advantage of superior treatment of the contaminants and simple maintenance compared to the screen separator. However, it has a disadvantage in that the overall treatment efficiency for the contaminants having a similar gravity as water is low.

The technical problem to be solved by the present invention is to provide a vortex-type rainwater separator having a screen that can combine the vortex method with the screen method, which can achieve a more efficient and stable rainwater treatment.

As a means for solving the above technical problem, the present invention, an apparatus for removing contaminants contained in rainwater by using the vortex phenomenon, the manhole body; Rainwater inlet pipe communicating with the inside of the manhole body in the tangential direction of the manhole body outer wall; A deep plate positioned inside the manhole body spaced apart from the outer wall of the manhole body; A cylindrical screen installed inside the deep plate and forming a plurality of through holes for removing impurities contained in the vortex type rainwater introduced into the deep plate; A rainwater outlet pipe connected to an upper portion of the deep plate and configured to discharge rainwater from which manures are removed while passing through the cylindrical screen to the outside of the manhole body; A deposit storage space formed at a bottom side of the manhole body below the deep plate; A benching skirt installed at an upper portion of the storage space to guide precipitates due to vortices toward the bottom center of the storage space; A hollow dredging tube installed in the center of the deep plate in a vertical direction and extending downward from an upper portion of the deep plate, and having a cone-shaped enlarged portion integrally located between the lower end of the deep plate and the upper end of the benching skirt; A sub-screen inclined downward from the lower end of the deep plate toward the center of the enlarged portion and having a plurality of apertures for removing impurities contained in rainwater introduced into the annular space between the deep plate and the dredging pipe; And a cover covering an inner annular space between the deep plate and the dredging pipe.

Here, the through-holes formed in the cylindrical screen and the sub-screen is introduced into the manhole body accommodating space so as to be inclined in a direction to resist the flow of rain that maintains the flow of vortex to induce a strong flow of fluid to the screen surface It is desirable to prevent contaminants from adhering.

And, in the case of the sub-screen inclined downward toward the center of the enlarged portion, the lower end of the sub-screen is lower than the cylindrical screen so that a passage capable of excellent flow can be formed between the lower end of the cylindrical screen and the lower end of the sub-screen. The lower end of the sub screen is extended to a position corresponding to the inner side directly below the inner cylindrical screen located inside the deep plate, so that the rainwater introduced into the receiving space of the manhole body is cylindrical. It is desirable to allow the contaminants contained therein to be filtered through the screen or sub-screen, and to maintain the existing vortex type stormwater treatment function through the passage even if the sub-screen and / or cylindrical screen is blocked. .

In addition, the cylindrical screen and the sub-screen, by performing a coating treatment on the surface through the coating material made of enamel material to form a smooth coating on the surface, the burr around the through hole generated in the perforation process for forming the through hole It is preferable to configure so as to prevent the phenomenon such as foreign matter jamming and clogging of the through hole due to.

Furthermore, in the embodiment of the present invention, the cover is installed in the upper opening of the annular space between the deep plate and the dredging pipe to be seated and fixed on the support frame having a radial partition, separated by the support frame In order to separate the upper openings of the annular spaces to be closed individually, if any one area of the cylindrical screen is intensively blocked by contaminants such as floats, only the cover of the area where the blockage is mainly generated is opened. It is desirable to configure the cleaning to be possible only for the area.

More preferably, each cover covering the annular space opening divided by the support frame may be provided with a handle for holding the worker, so that the cover can be easily opened.

According to the present invention having the above-described configuration, in order to supplement the limitations of the conventional vortex type rainwater treatment facility, the screen system is combined with the conventional vortex type, and the floating float similar to the specific gravity of water, which is a disadvantage of the conventional vortex type rainwater separator, It is possible to remove and minimize screen clogging, which is a disadvantage of the conventional screen rainwater separator, by pretreatment by vortex before sorting the contaminants through the screen, and floating materials (oil, etc.) that are difficult to remove with ordinary screen rainwater separator. Can be removed more effectively.

In addition, the screen clogging phenomenon is significantly reduced compared to the screen method adopted only the conventional screen as described above, it is also possible to reduce the number of maintenance and costs associated with this, even if the screen is blocked can be expected to treat the action by the vortex action. As a result, the effect of combining the advantages of the conventional vortex type and the screen type and achieving a more efficient and stable stormwater treatment is expressed.

Furthermore, according to an embodiment of the present invention, the device having an effective stormwater treatment capability can be implemented by a simple improvement operation of additionally mounting a cylindrical screen inside the deep plate of the conventional vortex rainwater separator. In addition, it also has a structural advantage that it is possible to significantly reduce any overall costs associated with the manufacture and construction of equipment.

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

1 is a cutaway perspective view for showing the overall configuration of the vortex-type rainwater separator with a screen according to an embodiment of the present invention, Figure 2 is a longitudinal cross-sectional view of the vortex-type rainwater separator according to an embodiment of the present invention, Figure 3 Lateral cross-sectional view of the vortex storm rain separator according to the embodiment of the present invention.

1 to 3, the vortex-type storm separator according to the present invention is a structure in which the screen system is combined with the vortex system, based on the basic configuration of the conventional vortex-type rain separator, the screen facility inside the vortex-type rain separator What has provided is made into the summary of a structure. The present invention having such a configuration will be described in more detail.

The vortex type rainwater separator according to the present invention, the manhole body 10, rainwater inlet pipe 20, deep plate 30, cylindrical screen 40, rainwater outlet pipe 50, sediment storage space 60, It is composed of a benching skirt 70, a dredging pipe 80, a sub screen 90 and a cover 100. The manhole body 10 has an accommodation space 12 that can accommodate a certain amount of rain in the interior, the accommodation space 12 in the rainwater inlet pipe 20 and rainwater outlet pipe 50, the cover 100 All components for implementing the vortex-type fractional separator according to the present invention except for () are located.

Rainwater inlet pipe 20 forms a flow path for rainwater introduction into the receiving space 12 of the manhole body 10, the manhole by forming a rotational flow, that is, a vortex in the rainwater introduced into the receiving space 12 It is connected in a tangential direction to the outer wall side of the manhole body 10 so that floating matter floats in the annular space between the main body 10 and the deep plate 30. Accordingly, the rainwater introduced into the manhole body 10 receiving space 12 through the rainwater inlet pipe 20 flows into the deep plate 30 while forming a downward flow, and inside the deep plate 30. In contrast, the upturn flow is formed.

The deep plate 30 has a hollow cylindrical shape with its lower portion open, and is located inside the manhole body 10 spaced apart from the outer wall of the manhole body 10. The deep plate 30 mainly plays a role of restraining turbulence by stabilizing the flow of rainwater in the receiving space 12 and stably controlling the effects of the rotational force and the shearing force. In addition, since the vortex is formed in and out of the deep plate 30 based on the deep plate 30 due to the deep plate 30, the deep plate 30 can secure more time for separating contaminants. It also serves to extend the flow path.

The cylindrical screen 40 has a hollow cylindrical shape with upper and lower portions open, and has a diameter smaller than the diameter of the deep plate 30 and has an axial length approximately equal to the vertical length of the deep plate 30. . In the embodiment of the present invention, the cylindrical screen 40 is installed at a predetermined distance from the inside of the deep plate 30, and filters the impurities contained in the vortex type rainwater introduced into the deep plate 30. In order to form a number of through holes in a regular pattern.

Rainwater outlet pipe 50 is in communication with the annular space (35) formed inside the deep plate (30) at the upper end of the deep plate 30, the flow of the vortex in the annular space (35) and the cylindrical screen The rainwater is discharged to the outside of the manhole body 10 in which contaminants such as solids, suspended solids, and contaminants are removed while passing through (40). As the rainwater discharge pipe 50 is connected to the upper side of the inner annular space 35 of the deep plate 30, the rainwater is spiraled upward in the annular space 35 partitioned inside the deep plate 30. It is possible to secure enough time for the pollutants and the like contained in the rainwater to be separated.

1 and 2, the benching skirt 70 is installed on the inner wall of the manhole body 10 above the deposit storage space 60 formed at the bottom of the manhole body 10 below the deep plate 30. In addition, the sediment caused by the vortex is induced to move smoothly toward the bottom center of the storage space. In addition, it serves to isolate the stored precipitate from being affected by the vortex-type rainwater flowing above the benching skirt 70 while preventing resuspension of the precipitate introduced into the storage space 60. To this end, the benching skirt 70 has a shape such as a general hopper opening in the center portion and narrowing down as shown in the figure.

Dredging pipe 80 is a hollow pipe shape having an inlet and an outlet, is installed in the vertical direction in the center extends from the top of the deep plate 30 to the bottom, the bottom of the deep plate 30 and the benching skirt 70 The cone-shaped enlarged diameter portion 82 positioned between the upper ends is integrally provided. Through such a dredging pipe 80, when a sufficient amount of sediment and suspended matter accumulated in the deposit storage space 60 can be removed through the dredging operation using the dredging equipment, the enlarged portion 82 is the manhole body ( 10 to guide the rainwater introduced into the receiving space to smoothly flow into the annular space inside the deep plate, while preventing the sediment accumulated in the sediment storage space located below it to resuspend due to the flow of rainwater. do.

The sub screen 90 is installed to be inclined downward from the lower open end of the deep plate 30 toward the center of the enlarged diameter portion, and forms a plurality of through holes in a regular pattern so that the sub screen 90 is not introduced into the cylindrical screen 40. It serves to filter out contaminants contained in the rainwater introduced into the other annular space 45 between the plate 30 and the cylindrical screen 40. To this end, the sub screen 90 is extended to a position corresponding to the inner side of the cylindrical screen 40 located directly inside the deep plate 30 and thus extends to the accommodation space 12 of the manhole body 10. The introduced stormwater will pass through the cylindrical screen 40 or sub-screen 90 to filter out contaminants.

Preferably, the lower end of the sub screen 90 is spaced apart from the lower end of the cylindrical screen 40 by a distance, and thus, between the lower end of the cylindrical screen 40 and the lower end of the sub screen 90. A passage P is formed, which allows good flow. Accordingly, even if the sub screen 90 and the cylindrical screen 40 are closed, rainwater may flow into the annular space 35 between the deep plate 30 and the cylindrical screen 40 through the passage P. As a result, the existing vortex type stormwater treatment function can be maintained as it is (see also a partial enlargement of FIG. 2).

In the case of the sub-screen 90 as well as the cylindrical screen 40, the size of the solids filtered according to the size of the through-holes formed in the screen, that is, the size of the screen mesh, is adjusted, so that the overall size of the object to be treated in the construction object, etc. In consideration of this, it is preferable to adopt a screen having an appropriate mesh size, and the through holes formed in the cylindrical screen 40 and the sub screen 90 are introduced into the manhole body 10 receiving space to maintain the flow of the vortex. It is preferable to prevent the contaminants from adhering to the screen surface by inclining in a direction that resists the flow of water to induce a strong flow of fluid.

In the case of the cylindrical screen 40 and the sub screen 90, the foreign matter is caught in the periphery of the through hole due to the burr generated in the perforation process for forming the through hole, so that the through hole is easily blocked, and overall processing efficiency There is a danger of sharply falling. Therefore, by coating the surface of the cylindrical screen 40 and the sub-screen 90 using an enamel coating material to form a smooth coating on the surface, foreign matters caught by the burr and thus It will be good to minimize the phenomenon such as clogging of the through-holes.

Figure 4 shows the cover portion configuration covering the deep plate top opening in the vortex-type rain separator according to the present invention.

Referring to FIG. 4, the cover 100 covers the inner annular spaces 35 and 45 between the deep plate 30 and the dredging pipe 80, and the upper part of the manhole accommodation space from the annular spaces 35 and 45. It serves to prevent the overflow (Over flow) of the rain, and the support frame 110 is installed on the upper opening of the annular space (35, 45) between the deep plate 30 and the dredging pipe (80). It is fixed to rest on.

The support frame 110 has a radial section as shown in the figure, the cover 100 is formed in a plurality of separate so as to be able to individually close the upper opening of the annular space partitioned by the support frame 110 separately. . In this case, when any area of the cylindrical screen is blocked by contaminants such as suspended solids, only the cover of the area where the blockage is mainly caused can be opened, so that individual cleaning is possible only for that area, so that the cleaning operation can be performed more efficiently. Can be done.

Reference numeral 102 in the drawing indicates a handle that can be gripped by the worker when lifting the cover 100 for the cleaning operation.

Next will be described in connection with the operation of the present invention the operation of the rain separation operation performed through the vortex type rainwater separator with a screen according to an embodiment of the present invention made of the above configuration.

Figure 5 is a view showing the operating state of the present inventors vortex type rainwater separator, looking at in conjunction with the accompanying Figure 3, first, the rainwater through the rain inlet pipe 20, like the existing vortex type rainwater treatment device 20 30) The manhole main body 10 formed at the outer side is introduced into the receiving space 12, and the rainwater introduced into the receiving space 12 flows downwardly while maintaining the downward turning flow. In this process, the floating float contained in the rainwater is separated into the upper part of the receiving space 12 located outside the deep plate, and the precipitate is settled to the bottom and safely stored in the storage space 60 under the benching skirt 70. .

Subsequently, the rainwater first processed in the receiving space between the manhole body 10 and the deep plate 30 forms a vortex between the deep plate 30 and the dredging pipe 80 through the lower opening of the deep plate 30. Rainwater introduced into the environment space (35) (45) of the, and the rainwater introduced into the annular space (35) (45) has a slower upward flow than the flow of rainwater located outside the deep plate (30) deep plate (30) ) Flows upwards.

Since the cylindrical screen 40 is installed inside the deep plate 30, the rainwater that has undergone precipitation and flotation separation first by the vortex action outside the deep plate 30 rises inside the deep plate 30 and has a cylindrical screen. Go through 40. Therefore, even the contaminant that is not removed by the conventional vortex type rainwater separator using only the vortex method can be further removed. Rainwater introduced into the annular space 35 between the dipplate 30 and the cylindrical screen 40 without being introduced directly into the cylindrical screen 40 flows out through the sub-screen 90. That is, the rainwater introduced into the accommodation space of the manhole body 10 is necessarily passed through the cylindrical screen 40 or the sub-screen 90, and the contaminants are filtered out in the process.

As the sub-screen 90 under the deep plate 30 has a configuration installed inclined downward into the deep plate 30, the rising rainwater debris is caught on the sub-screen 90, or the top of the screen Even if it sinks and hangs on the sub-screen 90, the sedimentation can be induced smoothly into the sediment reservoir without being accumulated on the screen. If the cylindrical screen and the sub-screen are closed and the screen function is lost, the gap between the dip plate 30 and the cylindrical screen 40 through the passage P between the cylindrical screen 40 and the sub-screen 90. Since rainwater can be introduced into the annular space 35, the same function as the existing vortex rainwater separator can be maintained as it is.

On the other hand, if a sufficient amount of sediment and floating droplets accumulate in the deposit storage space 60, the vacuum suction car is removed by dredging, if necessary, the deep plate 30, the cover 100 by opening the cylindrical screen When the entirety of the 40 or / and sub-screen 90 is washed or one area is concentrated, only the cover of the area where the blockage is mainly caused is opened, and individual washing is performed only for that area.

According to the embodiment of the present invention, in order to supplement the limitations of the conventional vortex-type stormwater treatment facility, the screen method is combined with the conventional vortex-type system, and the floating float similar in specific gravity to water, which is a disadvantage of the conventional vortex-type rainwater separator, It is possible to remove, and the screen clogging phenomenon, which is a disadvantage of the conventional screen rainwater separator through the pretreatment by the vortex before sorting the contaminants through the screen can be minimized. Floating materials (oil, etc.), which are difficult to remove with ordinary screen rain separators, can be more effectively removed.

In addition, since the screen inside the deep plate has a cylindrical shape and the rainwater maintains the flow of vortex, clogging is significantly reduced compared to the conventional method of filtering vertically to the screen, thereby reducing the number of maintenance and costs associated with it. Even if the screen is clogged, the conventional vortex treatment function is maintained as it is, so that an efficient and stable stormwater treatment can be achieved.

Furthermore, since a simple improvement for additionally installing a cylindrical screen inside the deep plate of the conventional vortex type rainwater separator can realize a device having an effective stormwater treatment capability, all the costs related to the production and construction of facilities according to the existing facilities are also used. It can greatly reduce.

In the detailed description of the present invention, only specific embodiments thereof have been described. It is to be understood, however, that the present invention is not limited to the specific forms referred to in the description, but rather includes all modifications, equivalents, and substitutions within the spirit and scope of the present invention as defined by the appended claims. Should be.

1 is a cutaway perspective view for showing the overall configuration of the vortex type rainwater separator with a screen according to an embodiment of the present invention.

Figure 2 is a longitudinal cross-sectional view of the vortex rainwater separator according to an embodiment of the present invention.

Figure 3 is a cross-sectional view of the vortex rainwater separator according to an embodiment of the present invention.

4 is a view showing a cover portion configuration for covering the deep plate top opening in Figure 1;

Figure 5 is an operational state diagram to show the rainwater treatment process performed through the vortex type rainwater separator according to an embodiment of the present invention.

<Code Description of Main Parts of Drawing>

10: manhole body 12: accommodation space

20: excellent inflow pipe 30: deep plate

40: cylindrical screen 35, 45: annular space

50: storm drain 60: storage space

70: benching skirt 80: dredging pipe

85: diameter 90: sub screen

100: cover 110: support frame

Claims (6)

As a device for removing contaminants contained in rainwater by using the vortex phenomenon, A manhole body; Rainwater inlet pipe connected to the outer wall side of the manhole body in a tangential direction; A deep plate positioned inside the manhole body spaced apart from the outer wall of the manhole body; A cylindrical screen installed inside the deep plate and forming a plurality of through holes for removing impurities contained in the vortex type rainwater introduced into the deep plate; A rainwater outlet pipe connected to an upper portion of the deep plate and configured to discharge rainwater from which manures are removed while passing through the cylindrical screen to the outside of the manhole body; A deposit storage space formed at a bottom side of the manhole body below the deep plate; A benching skirt installed at an upper portion of the storage space to guide precipitates due to vortices toward the bottom center of the storage space; A hollow dredging tube installed in the center of the deep plate in a vertical direction and extending downward from an upper portion of the deep plate, and having a cone-shaped enlarged portion integrally located between the lower end of the deep plate and the upper end of the benching skirt; A sub-screen inclined downward from the lower open end of the deep plate toward the center of the diameter part to remove contaminants included in the rainwater introduced into the annular space between the deep plate and the cylindrical screen; And And a cover covering an inner annular space between the deep plate and the dredging pipe. The method of claim 1, The through hole formed in the cylindrical screen and the sub screen, Vortex type rainwater separator with a screen, characterized in that it is introduced into the manhole body receiving space to be inclined in a tangential direction to the flow direction of rainwater to maintain the flow of vortex. The method of claim 1, The sub screen, The lower end of the sub-screen is spaced a predetermined distance from the lower end of the cylindrical screen so that a passage capable of excellent flow can be formed between the lower end of the cylindrical screen and the lower end of the sub-screen, And a lower end of the sub-screen extends to a position corresponding to directly below and inward of the cylindrical screen located inside the deep plate.  The method according to any one of claims 1 to 3, The cylindrical screen and sub screen, Vortex type rainwater separator with a screen, characterized in that the coating is made of an enamel material to form a smooth coating on the surface. The method of claim 1, The cover is, It is installed in the upper opening of the annular space between the deep plate and the dredging pipe and seated and fixed on the support frame having a radial section, Vortex type rainwater separator with a screen, characterized in that a plurality of separation formed so as to individually close the upper opening of the annular space partitioned by the support frame. The method of claim 5, wherein And each cover covering the annular space opening divided by the support frame is provided with a handle for gripping an operator.

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