KR101765132B1 - Screen Manhole - Google Patents

Abstract

The present invention relates to a filtering device for filtering contaminants contained in wastewater to effectively prevent inflow of contaminants into a sewage pump and to provide a filtration hole on the screen for screening the contaminants, A manhole body having an open internal space and having an inlet through which wastewater flows from the outside and an outlet through which wastewater can be discharged; An inclined inverting portion formed on an inner bottom surface of the manhole main body and having inclined surfaces inclined downward from a direction in which the discharge port is provided to a direction in which the inlet is provided, so that contaminants in the waste water can be loaded in one direction; A fixed frame disposed in an inner space of the manhole main body and positioned above the inclined inverted portion to filter contaminants included in the water phase, And a screen part having a plurality of filter holes arranged at regular intervals, wherein the screen part is provided with a contaminant layer having a predetermined flow rate in the filtration hole, A screen manhole is provided in which the screen bars are arranged at an interval of 10 to 30 mm.

Description

Screen Manhole

The present invention relates to a screen manhole, and more particularly, to screen manhole, more particularly, to filtration to filter contaminants contained in wastewater to effectively prevent inflow of contaminants into a sewage pump and to prevent clogging of the screen, To a screen manhole capable of maintaining a long period of time.

Generally, wastewater generated in various restaurants and factories, such as household sewage draining from a bathroom, kitchen, or bath house, is drained to a sewage treatment facility, which is a sewage facility, through a sewage line having a structure buried underground. Further, A variety of types of manholes are installed and used as a structure having a space that can be accessed by a person to repair or clean the sewer pipe.

Most of the sewage flowing along the sewer line toward the sewage treatment facility is transferred to the sewage treatment facility through natural manholes. However, the area where natural drainage is impossible due to the topography condition or other restrictions, Or conveyed from the manhole by pressure.

However, since the sewage flowing into the manhole from the sewer pipe or the outside includes various kinds of impurities, it is the main cause of the failure of the sewage pump when the sewage pump is used. Furthermore, when the sewage pump fails, the sewage flows over the upper part of the manhole, thereby causing environmental problems such as polluting the surrounding soil.

In order to solve the above-mentioned problems, a conventional art disclosed in Korean Utility Model No. 348451 (Apr. 24, 2004) has an inlet port and an outlet port formed in a cubic body middle wall portion of an upper light- And a cushion-like body having a lower light-tight crescendo-like shape formed on an ordinary manhole-holding jaw having a seating portion on which a lid is placed and having a catching step formed on a lower side of the seat bottom portion, and a frame of a certain width is formed outside the upper end of the body The upper wall of the body is provided with a handle on both sides thereof, and numerous long holes are formed in the vertical direction of the lower end. The upper wall has a latching protrusion formed thereon. The latching protrusion is mounted on the latching protrusion It is possible to process the buried objects in a timely manner as well as to facilitate the processing operation. There are constructed manholes are known.

In addition, in Korean Patent Registration No. 1328130 (Oct. 30, 2013), an operation port is formed in the upper part to be opened and closed by a lid, and an inlet for introducing wastewater is provided at one side of the periphery, A manhole body provided with an outlet portion through which the outflow pipe is connected; And the first and second discharge ports for discharging the wastewater flowing through the inflow pipe are formed on the other side of the inflow port, An organ; And a porous coarse screen mounted on a bottom between the first and second discharge ports of the tee type distributor for filtering contaminants discharged through a second discharge port relatively close to the inlet port, The throat engine is provided between the inflow port and the first discharge port so as to expand the inflow port and the inflow port to a larger flow area than the first discharge port, There is known a manhole of a sewage pump using a teat-type engine and a coarse screen capable of effectively removing contaminants as it is structured to promptly introduce the impurities into the second discharge port.

However, since the above-described conventional manhole No. 348451 merely filters the contaminants through the small water holes formed in the filtering net, the filtering function can be performed so as to supply the wastewater from which the contaminants have been removed for a short period of time. However, There is a problem in that the sewage is refluxed to the ground as the water level is increased as well as the water permeability in the manhole is increased.

In addition, the manhole in the conventional registration utility model No. 348451 is troublesome because the manhole is inspected by the manager from time to time after the inspection, and if the manager is negligent at all, the cleaning work can not be carried out. There is a problem that it becomes obsolete.

In the case of the conventional manhole No. 1328130, the obstacle is loaded and separated on one side of the screen. However, when the manhole is overflowed from the height of the screen due to the management member, it becomes very difficult to clean and manage the manhole, The contaminants that have been moved beyond the manhole are directly discharged from the manhole and flow into the sewage pump, so that a large obstacle is trapped in the pump to stop the operation of the pump or cause a trouble.

In addition, in the case of the conventional registered utility model publication No. 348451 and the registered patent publication No. 1328130, it is difficult to separate heavy contaminants from each other because the outflow section is in contact with or adjacent to the bottom surface of the manhole, so that the contaminants can easily flow out through the outflow section . Furthermore, since the conventional manhole is complicated in structure, it is difficult to manufacture the manhole itself and equipment work in the field, and the cost of the parts is increased and the cost is increased.

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above-mentioned problems, and it is an object of the present invention to provide a screen separating apparatus and a screen separating apparatus, The present invention provides a screen manhole which is simple in structure and has a very simple structure and is capable of maintaining a good watertight performance while increasing the filtration life of the impurities in the manhole.

In addition, the present invention is configured such that the obstacles are stacked in one direction from the structure inclined toward the direction opposite to the discharge of the filtered treated water, so that the impurities are easily sucked and removed while blocking the discharge of the impurities, And to provide a screen manhole which can minimize the outflow of large contaminants by classifying the position of the outlet.

The screen manhole proposed by the present invention includes a manhole body having an inner space with an opened top surface and having an inlet through which wastewater flows from the outside and an outlet through which wastewater can be discharged; An inclined inverting portion formed on an inner bottom surface of the manhole main body and having inclined surfaces inclined downward from a direction in which the discharge port is provided to a direction in which the inlet is provided, so that contaminants in the waste water can be loaded in one direction; A fixed frame disposed in an inner space of the manhole main body and positioned above the inclined inverted portion to filter contaminants included in the water phase, And a screen part having a plurality of filter holes arranged at regular intervals, wherein the screen part is provided with a contaminant layer having a predetermined flow rate in the filtration hole, So that the screen bars are spaced from each other by 10 to 30 mm.

Further, the manhole body may further include a screen supporting end protruding from a lower portion of the inner space and having an upper surface positioned higher than an inclined surface of the inclined inverting portion and capable of supporting the screen portion on an upper portion thereof.

The screen supporting end forms an oblique inclined surface from the upper surface supporting the screen unit to the outside.

Wherein the manhole body is provided with a top surface of the inner space at an upper portion thereof so as to be closeable to the upper side of the lower end of the inclined surface of the inclined invert portion and has a suction hole capable of sucking the impurities contained in the inner space of the manhole body, .

The screen unit may be constructed as a stand-alone type having a cylindrical shape and being installed at a central portion of the manhole main body, which is used for a large capacity according to the processing capacity of the manhole main body.

Also, the screen unit may be of a wall-mounted type, which is used for a low capacity depending on the processing capacity of the manhole body, and is disposed adjacent to the outlet of the manhole main body and has a screen fixing part to be mountable on a wall surface of the manhole main body.

The screen fixing part includes a hooking member fixedly installed on a wall surface of the manhole body and a hooking step formed at both ends of the screening part so as to be fittable with the hooking member.

The screen portion is formed into a circular cross section, a "U" shape, a wavy shape repeatedly curved toward the semicircular direction, and a trapezoidal shape without one side.

In addition, the present invention is characterized in that it is provided at a position extending from the wall surface of the manhole body toward the screen portion and fixed to the inner wall surface of the manhole body, And a baffle member that is formed to have a substantially rectangular shape.

Further, the present invention may be configured to further include a screen lid having a plurality of filtering holes formed at predetermined intervals so as to close the upper portion of the screen portion.

The filtration hole of the screen cover is formed to have a size corresponding to the filtration hole of the screen portion, and the size of the filtration hole is 10 to 30 mm.

According to the screen manhole according to the present invention, since the screen portion having a sufficient space between the necks of the screen bars is 10 to 30 mm, there is no obstruction of the filtering holes due to the obstacles, and the number of manhole cleaning operations is greatly reduced, And it is possible to maintain the water permeability by the filtration hole continuously to prevent the failure of the sewage pump of the manhole, and to prolong the life span of the filtration function to the screen.

In addition, since the screen manhole according to the present invention has a simple structure without any obstruction of the filter hole without a means for removing foreign matter to the screen, it is possible to easily manufacture the manhole, reduce the cost of the product, It is possible to improve the price competitiveness.

Also, since the position of the discharge port according to the present invention is configured to have a sufficient level difference from the bottom surface of the manhole, heavy contaminants are separated, thereby preventing the outflow of the contaminants to the discharge port and maintaining the life of the waste water pump continuously .

Further, since the screen manhole according to the present invention comprises the inclined inverting portion having the inclined surface inclined downward from the position of the discharge port to the direction in which the inlet is located, and the suction hole corresponding to the lower end portion of the inclined surface of the inclined inverting portion, So that the suction operation of the impurities can be carried out very easily from the separate suction equipment.

In addition, since the screen manhole according to the present invention comprises a baffle member having a structure for enclosing the screen portion, the filtration efficiency can be improved by simply separating the lightweight contaminants.

Further, the screen manhole according to the present invention constitutes a screen lid having a filtration hole at an upper portion of the screen portion, so that it is possible to efficiently maintain the impurity filtering performance at a higher level than the screen.

1 is a sectional perspective view showing a first embodiment of a screen manhole according to the present invention;
2 is a sectional view showing a first embodiment of a screen manhole according to the present invention;
Fig. 3 is a partially enlarged view exemplarily showing the state of a contaminant layer formed on a screen portion in the first embodiment of the screen manhole according to the present invention; Fig.
4 (a) and 4 (b) are photographs of a scene at the time when 30 days have elapsed since the screen manhole of the present invention was installed.
5 is a sectional view showing a second embodiment of a screen manhole according to the present invention.
6 is a plan sectional view showing a second embodiment of a screen manhole according to the present invention.
7 is a perspective view showing a first embodiment of a screen portion in a second embodiment of the screen manhole according to the present invention.
8 is a perspective view showing a second embodiment of the screen portion in the second embodiment of the screen manhole according to the present invention.
9 is a perspective view showing a third embodiment of the screen portion in the second embodiment of the screen manhole according to the present invention.
10 is a perspective view showing a fourth embodiment of the screen portion in the second embodiment of the screen manhole according to the present invention.
11 is a sectional view showing a third embodiment of a screen manhole according to the present invention.
12 is a sectional view showing a state in which the screen manhole according to the fourth embodiment of the present invention is applied to the first embodiment;
13 is a sectional view showing a state in which the screen manhole according to the fourth embodiment of the present invention is applied to the second embodiment;
14 is a plan view showing a fourth embodiment of a screen manhole according to the present invention.

The present invention relates to a manhole main body having an inner space with an opened top surface and having an inlet through which wastewater flows from outside and an outlet through which wastewater can be discharged; An inclined inverting portion formed on an inner bottom surface of the manhole main body and having inclined surfaces inclined downward from a direction in which the discharge port is provided to a direction in which the inlet is provided, so that contaminants in the waste water can be loaded in one direction; A fixed frame disposed in an inner space of the manhole main body and positioned above the inclined inverted portion to filter contaminants included in the water phase, And a screen part having a plurality of filter holes arranged at regular intervals, wherein the screen part is provided with a contaminant layer having a predetermined flow rate in the filtration hole, A screen manhole in which the screen bars are spaced from each other by 10 to 30 mm so as to enable the screen manholes to be spaced apart from each other.

The screen manhole may further include a screen supporting end protruding from a lower portion of the inner space of the manhole body and having an upper surface formed to be positioned higher than an inclined surface of the inclined inverting portion and capable of supporting the screen portion on an upper portion thereof. .

And the screen supporting end forms a beveled surface inclined downward from the upper surface supporting the screen unit.

The manhole body is provided with a top surface of the inner space at an upper portion thereof so as to be closeable to the upper side of the lower end of the inclined surface of the inclined invert portion. The manhole body is provided with a suction hole capable of sucking the impurities contained in the inner space of the manhole body. The screen manhole including the lid is characterized by the technical structure.

In addition, the screen unit is a stand-alone screen manhole which is used for a large capacity according to the processing capacity of the manhole body, and is installed at a central portion of the manhole main body and has a cylindrical shape.

The screen unit of the present invention is a wall-mounted type screen manhole which is used for a low capacity according to the processing capacity of the manhole body and is located adjacent to the outlet of the manhole body and has a screen fixing part to be mounted on the wall surface of the manhole body It is a feature of technology construction.

The screen manhole includes a hook member fixedly installed on a wall surface of the manhole body, and hooks formed at both ends of the screen and formed to be fittable to the hooking member. do.

Further, the screen portion is characterized in that the screen manhole is formed in a sectional shape selected from an arc shape, a "U" shape, a wavy shape repeatedly curved toward the semicircular direction, and a trapezoidal shape without one side.

In addition, the present invention is characterized in that it is provided at a position extending from the wall surface of the manhole body toward the screen portion and fixed to the inner wall surface of the manhole body, The screen manhole further includes a baffle member formed in a manner such that the baffle member is formed.

The present invention also provides a screen manhole, further comprising a screen lid provided with a plurality of filtering holes formed at predetermined intervals so as to close the upper portion of the screen portion.

And the screen hole is formed to have a size corresponding to the size of the filter hole of the screen unit, and the size of the filter hole is 10 to 30 mm.

Next, a preferred embodiment of a screen manhole according to the present invention will be described in detail with reference to the drawings.

1 and 2, a screen manhole according to a first embodiment of the present invention includes a manhole body 10, a warp invert portion 20, and a screen portion 30.

As shown in FIG. 1, the manhole body 10 is configured to allow wastewater to flow into the inside of the manhole body 10 to filter the contaminants. The manhole body 10 includes a base plate 10a positioned at the lower end and a cylindrical body 10b ).

The base plate 10a is preferably formed by curing concrete. However, the base plate 10a may be formed by using a material such as stainless steel, synthetic resin, or FRP in addition to concrete.

The cylindrical body 10b has a cylindrical shape and extends vertically on the upper portion of the base plate 10a.

The manhole body 10 has an internal space 11 having a top open structure. That is, the inner space 11 of the manhole body 10 provides a space for filtering a large amount of contaminants introduced together with the wastewater.

The wall surface of the manhole body 10, that is, the cylindrical body 10b is provided with an inlet 13 through which wastewater can be introduced from the outside, and an outlet 13 for discharging the filtered wastewater through the screen 30 14).

The inlet port 13 and the outlet port 14 are formed to protrude toward the inner space 11 of the manhole body 10 and the outlet port 14 is formed to extend sufficiently toward the screen portion 30 And is positioned so as to be penetrated toward the inside of the screen unit (30).

In the manhole body 10, the inlet 13 and the outlet 14 are formed with a predetermined interval. That is, the manhole body 10 has the discharge port 14 formed on the lower side with a predetermined step with respect to the inlet 13.

The step interval between the inlet 13 and the outlet 14 is set to set a range of the interval according to the capacity or size of the manhole body 10. [

As described above, when a step is provided between the inlet 13 and the outlet 14 of the wastewater, reverse flow of the wastewater can be prevented while smoothly filtering the wastewater.

Preferably, the discharge ports 14 are formed at a height sufficiently spaced from the upper surface of the warp inverted portion 20.

The height of the discharge port 14 is set to be set within a range of the interval according to the capacity of the manhole body 10 so as to be set at a distance of at least 300 mm from the warp invert portion 20 .

When the height of the discharge port 14 is set to less than 300 mm, it is difficult to ensure a sufficient distance from the heavy contaminants accumulated on the lower side of the manhole body 10, so that the contaminants can easily flow out through the outlet 14 There are drawbacks to this.

As described above, when the height position of the discharge port 14 is made to be 300 or more from the bottom surface of the manhole body 10, the heavy contaminants are separated, thereby preventing the contaminants from flowing out to the discharge port 14, It is possible to maintain the life span continuously.

The manhole body 10 further includes a screen supporting end 15 protruding from a lower portion of the internal space 11. [

The upper surface of the screen supporting end 15 is supported on the upper surface of the inclined surface 21 of the inclined inverting portion 20 So as to be positioned higher. That is, the screen supporting end 15 is configured to support the screen unit 30 and supports the screen unit 30 so as to be separated from the obstacles accumulated in the lower portion of the manhole body 10.

The screen supporting end 15 has a trapezoidal cross-sectional shape and extends outward from an upper surface supporting the screen unit 30 to form a downwardly inclined oblique surface. In other words, the screen support end 15 supports the screen 30 so that the access of the obstacle to the screen 30 can be maximally blocked.

On the inner bottom surface of the manhole body 10, a warp inverted portion 20 having a gently inclined structure in one direction is formed.

As shown in FIG. 2, the inclined inverting portion 20 is formed so as to be able to load the contaminants in the wastewater flowing into the internal space 11 of the manhole body 10 in one direction. That is, the inclined inverted portion 20 has inclined surfaces 21 inclined downward from the direction in which the discharge port 14 is provided toward the direction in which the inlet 13 is provided.

The inclined surface 21 of the inclined inverted portion 20 is formed to have a predetermined inclination angle with respect to the bottom surface of the manhole body 10.

The inclination angle of the inclined surface 21 is configured to be flexibly set according to the capacity of the manhole body 10.

The manhole body 10 is provided with a manhole cover 17 which is provided at an upper portion of the manhole body 10 and is capable of closing the upper surface of the inner space 11 of the manhole body 10.

The manhole cover 17 is configured to be detachable from the manhole body 10. That is, the operator can open and close the manhole cover 17 so that the operator can enter and exit the inside of the manhole body 10, that is, the manhole cover 17 can be opened and closed from the manhole body 10.

The manhole cover 17 is formed with a suction hole 18 capable of sucking the contaminants in the manhole body 10.

The suction hole 18 is formed on the manhole cover 17 so that the inclined surface 21 of the inclined invert portion 20 can be smoothly sucked into the inside space 11 of the manhole body 10. [ ) Of the lower end.

In this case, the suction hole 18 may be structured to be always open, or it may be provided with another opening / closing means (not shown).

The inclined inverted portion 20 having the inclined surface 21 inclined downward from the position of the discharge port 14 toward the direction in which the inlet 13 is located is provided at the lower end of the inclined surface 21 of the inclined inverted portion 20 By constructing one suction hole 18, it is possible to carry out the suction operation of the contaminants very easily from the separate suction equipment while allowing the contaminants to naturally stack in one direction.

The screen unit 30 filters the contaminants contained in the oily water before the wastewater flowing into the inside space 11 of the manhole body 10 through the inlet 13 flows out to the outlet 14, .

The screen unit 30 is installed in the inner space 11 of the manhole body 10 and is located on the upper side of the warp invert unit 20.

The screen unit 30 is configured so that the shape and the installation position can be distinguished from the large capacity and low capacity depending on the processing capacity of the manhole body 10.

1 and 2, the screen unit 30 is installed in a central portion of the manhole body 10, that is, at an upper portion of the screen supporting end 15, as shown in FIGS. 1 and 2 It is configured as a stand-alone type having a cylindrical shape.

As shown in Figs. 1 and 2, the screen unit 30 includes a fixed frame 31 positioned vertically and a screen bar 33 connecting the fixed frame 31 in a vertical direction do.

The fixed frame 31 is formed in a donut shape or a circular plate shape.

The fixing frame 31 positioned to be connected to the lower end of the screen bar 33 is fixed to the screen supporting end 15 by using a separate fastening member such as a bolt or a screw . Although not shown in the drawing, an adhesive may be used as the fastening member, or welding may be performed.

The screen bars 33 are fixedly installed on the fixed frame 31 in a vertical direction and are spaced apart from each other at regular intervals in the lateral direction so as to be equipped with a plurality of filtering holes 34. That is, the waste water flows out to the discharge port 14 while passing through the filtration hole 34 of the screen unit 30, so that the screen bar 33 can be caught by the obstacles and be filtered.

The screen bar 33 has a circular cross-sectional shape and is formed to have a rod-like shape having a long length.

The screen portion 30 constitutes a surface area of the overall screen so that a sufficient flow rate can be maintained. That is, as shown in FIG. 3, the screen unit 30 includes a screening bar 34 having a screening bar 34 formed with a screening layer 35 having a predetermined flow rate therein, 33 are arranged to have a spacing D1 between them, that is, a neck spacing of 10 to 30 mm.

The impurity layer 35 may serve as a filter and the impurity layer 35 may be introduced into the manhole body 10 to remove contaminants such as fibrous impurities For example, hair, etc.) in the form of a film on the filter hole 34.

If the size of the filtration hole 34, that is, the arrangement interval D1 between the screen bars 33 is less than 10 mm, the obstruction is easily caught in the filtration hole 34, The filtering function is lost due to the fact that the filtration holes 34 are blocked because the filter holes 34 are fastened and the arrangement distance between the screen bars 33 is more than 30 mm. In this case, relatively large contaminants pass through the filtration holes 34 And the pollutants are flowed into or accumulating in the sewage pump, thereby causing a failure of the sewage pump.

4 (a) and 4 (b) are photographs of a scene after holding the screen manhole of the present invention for 30 days. As shown in Fig. 4 (a) As shown in FIG. 4 (b), all of the large and small types of contaminants are separated from the wastewater continuously on the outer side of the screen unit 30, as shown in FIG. 4 (b).

That is, according to the screen manhole according to the present invention configured as described above, since the screen portion 30 having the neck spacing of 10 to 30 mm is formed in the screen bar 33, the filtering holes 34 are not blocked by the obstacles, The number of times of cleaning work is greatly reduced and the maintenance is very easy and the water permeability by the filtration hole 34 is continuously maintained to prevent the clogging of the manhole and the filter effect by forming the contaminant layer 35 And it is possible to greatly extend the lifetime of the filtration function for the screen.

In addition, since the filtration hole 34 is not closed without a separate means for removing foreign matter to the screen, the manufacturing process for the manhole is simple and the cost of the product is reduced to lower the cost of the product It is possible to improve price competitiveness.

In the second embodiment of the screen manhole according to the present invention, as shown in FIG. 5 and FIG. 6, the screen unit 30 is of a wall-mounted type in which the screen unit 30 is positioned adjacent to the discharge port 14 of the manhole body 10 And is provided with a screen fixing portion (37) so as to be mountable on the wall surface of the manhole body (10).

The screen unit 30 is adapted to be used in the manhole body 10 of a low capacity according to the processing capacity of the manhole body 10.

The screen unit 30 has a structure in which one side wall of the screen unit 30 is in contact with the wall surface, and the outlet unit 14 is positioned toward the screen unit 30.

6, the screen fixing portion 37 includes a hooking member 37a fixedly installed on a wall surface of the manhole body 10, and a screen fixing portion 37a which is fitted to the screening portion 30 And a hooking end 37b formed on the hooking end 37b.

The hooking end 37b is bent at both ends of the screen unit 30 toward the lateral direction.

The hooking end 37b may be formed only in the fixed frame 31 of the screen unit 30 so that only the upper and lower portions of the screen unit 30 can be coupled and fixed to the hooking member 37a It is also possible to form the hooking member 37a to be coupled to the hooking member 37a because the hooking step 37b is extended vertically and vertically over the entire height of the screening unit 30. [

The first embodiment of the screen unit 30 is formed to have an arc shape or a semicircular shape as shown in Fig.

The second embodiment of the screen unit 30 is formed to have a "U" shape as shown in FIG.

For example, the screen portion 30 is formed to have a gentle semicircular curved path at a position extending straight from the wall surface.

As shown in Fig. 9, the third embodiment of the screen unit 30 is formed so as to have a wave shape repeatedly curved toward the semicircular direction.

For example, a shape curved outward convexly on the basis of the screen portion 30 and curved inwardly concave is formed so as to have a wave shape repeatedly with a curved radius.

The fourth embodiment of the screen unit 30 is formed to have a trapezoidal shape without one side as shown in Fig.

The screen portion 30 having a trapezoidal shape without one side is preferably applied to the manhole main body 10 having a small internal space 11 with a small water passage area.

The various shapes of the first to fourth embodiments of the screen unit 30, that is, the arc shape, the "U" shape, the wave shape repeatedly curved toward the semicircular direction, and the trapezoid shape without one side, And the screen bars 33 are arranged at regular intervals along the fixed frame 31. The screen bars 33 are arranged in the same plane.

That is, according to the present invention as in the second embodiment, since the screen portion is applied to a manhole of a low capacity to sufficiently secure the internal space of the manhole body, manhole production work and maintenance work can be easily performed Do.

In the second embodiment described above, the same configuration as that of the above-described first embodiment can be employed except for the above-described configuration, and a detailed description thereof will be omitted.

11, the screen manhole according to the third embodiment of the present invention includes a baffle member (not shown) formed to be capable of separating a light-weight contaminant from the wastewater flowing into the internal space 11 of the manhole body 10 40).

The baffle member 40 is installed on the inner wall surface of the manhole body 10 so as to be spaced apart from the inner peripheral surface of the manhole body 10 and the outer peripheral surface of the screen 30. That is, the beffle member 40 is installed at a position extending from the wall surface (inner wall) of the manhole body 10 toward the screen unit 30 and is wrapped around the screen unit 30 with a predetermined gap outside Respectively.

That is, according to the present invention as in the third embodiment described above, when the bevel member 40 having the structure that surrounds the screen unit 30 is constructed, it is possible to easily separate the lightweight contaminants and improve the filtration efficiency Do.

12 and 13, the screen manhole according to the fourth embodiment of the present invention further includes a screen cover 50 installed to close the upper portion of the screen unit 30. [

It is preferable that the screen lid 50 is coupled to the upper portion of the screen unit 30 by using a connecting member such as a hinge or a hinge so as to be openable and closable from the screen unit 30.

The screen lid 50 is formed to have the same shape as that of the upper end of the screen unit 30.

As shown in Fig. 14, the screen lid 50 is formed with a plurality of filtering holes 54 at regular intervals.

The filtration hole 54 of the screen cover 50 is formed to have a size corresponding to the filtration hole 34 of the screen unit 30. That is, the interval D2 of the filtration holes 54 is 10 to 30 mm.

The screen lid 50 may be formed in a plate shape and may have a filtering hole 54 of a predetermined size. The screen lid 50 may have the same shape as the screen 30, It is also possible to form the filtration hole 54 having the same shape as that of the filtration hole 34 formed by the above-

That is, according to the present invention configured as in the fourth embodiment, since the screen cover having the filtration hole is formed on the upper portion of the screen portion, it is possible to efficiently maintain the filtration performance of the contaminant at a higher water level than the screen.

In the third and fourth embodiments described above, the same configurations as those of the first embodiment or the second embodiment can be employed except for the configuration described above, and thus the detailed description is omitted.

Although the preferred embodiments of the screen manhole according to the present invention have been described above, the present invention is not limited thereto, but can be variously modified and embodied within the scope of the claims, specification and accompanying drawings, .

10: Manhole body 10a: Base plate 10b: Cylindrical body
11: inner space 13: inlet 14: outlet
15: Screen Supporting Step 17: Manhole Cap 18: Suction Ball
20: inclined invert portion 21: inclined surface 30: screen portion
31: stationary frame 33: screen bar 34: filter bar
35: impurity layer 37: screen fixing portion 37a: hook member
37b: Hanger end 40: Baffle member 50: Screen cover
54: filtration hole
D1: Spacing of screen bars D2: Spacing of filtration holes

Claims (11)

A manhole body having an inner space opened on an upper surface thereof and having an inlet through which wastewater flows from the outside and an outlet through which wastewater can be discharged;
An inclined inverting portion formed on an inner bottom surface of the manhole main body and having inclined surfaces inclined downward from a direction in which the discharge port is provided to a direction in which the inlet is provided, so that contaminants in the waste water can be loaded in one direction;
A fixed frame disposed in an inner space of the manhole main body and positioned above the inclined inverted portion to filter out contaminants contained in the water phase, a fixed frame positioned up and down with a predetermined distance therebetween, A screen unit having a plurality of filter holes arranged at regular intervals;
And a screen cover installed to close the upper portion of the screen portion and having a plurality of filtering holes formed at regular intervals,
The upper surface of the manhole body is formed to protrude from a lower portion of the inner space and is formed to be higher than an inclined surface of the warp invertible portion so as to be capable of supporting the screen portion. The inclined inverted portion forms a beveled surface inclined downward from the upper surface supporting the screen portion And a screen supporting end,
Wherein the screen portion has a screen interval of 10 to 30 mm between the screen bars so as to maintain a sufficient flow rate of the surface area of the screen,
Wherein the filtering hole of the screen cover is formed to have a size corresponding to the filtering hole of the screen portion, the size of the filtering hole is 10 to 30 mm,
A suction hole is formed in the upper portion of the manhole body so as to be able to close the upper surface of the inner space and to correspond to the upper side of the lower end of the inclined surface of the inclined invert portion and to suck the contaminants loaded in the inner space of the manhole body,
Wherein the screen unit is of a wall-mounted type, which is used for a low capacity according to the processing capacity of the manhole body, and is positioned adjacent to the outlet of the manhole body and is capable of being mounted on a wall surface of the manhole body,
Wherein the screen fixing portion includes a hook member fixedly installed on a wall surface of the manhole body and a hook formed at both ends of the screen portion so as to be fittable with the hooking member.
delete delete delete delete delete delete The method according to claim 1,
Wherein the screen section is formed into a circular cross section, a "U" shape, a wavy shape repeatedly curved toward the semicircular direction, and a trapezoidal shape without one side.
The method according to claim 1 or 8,
A baffle which is fixed to an inner wall surface of the manhole main body and is installed at a position extending from the wall surface of the manhole body toward the screen portion and encloses the screen portion with a predetermined space therebetween, Wherein the screen manhole further comprises a member.
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