KR20030068107A - Rainwater plant with built-in mesh screen unit - Google Patents

Abstract

PURPOSE: A rain water sewage system provided with a mesh screen unit is provided to prevent the counterflow of rain water stored in a short term to remove the impurities contained in the stored rain water. CONSTITUTION: The rain sewage system(50) provided with a mesh screen unit comprises: a catch-basin(20) connected to at least one of inlets and at least one of drains; a mesh screen unit(30) placed in the catch-basin(20), located between a mesh screen(30') having parallel screen bars(31) and a screen bar(31) of the mesh screen(30'), and provided with an impurities removal unit; a partition located in the catch-basin(20) to divide up the catch-basin(20) into an inflow space and a drain space and attached with a mesh screen unit(30) having an upward incline at an angle of 90 degrees and below from a vertical plane; and a retentive member arranged longitudinally along the mesh screen unit(30) to increase the amount stored.

Description

Excellent facility with mesh screen unit installed {RAINWATER PLANT WITH BUILT-IN MESH SCREEN UNIT}

The present invention relates to a rainwater installation equipped with a mesh screen unit to prevent the backflow of rainwater that is stored rapidly in a relatively short time, such as long-term rainy weather or storms, and to smoothly remove the impurities contained in the stored rainwater will be.

In general, it is well known that a conduit is installed with a mesh screen to collect contaminants such as wood, plastic, paper, etc., which float together with rainwater.

As these stormwater facilities release some of the rainwater mixed with sewage during the rainy season, these facilities, called flood basins, are installed at different points of the waterway.

Such a mesh screen unit of the existing excellent facility is already known by the European patent application (EP-A 0 358 952) bar, the mesh screen unit is provided with a debris removal means for cleaning the screen bar while moving back and forth In addition, the contaminant removing means is integrally formed with a contaminant removing member arranged on the screen bar in a triangular blade shape.

Accordingly, the present invention is to solve the problems and shortcomings of the prior art, the main object of the present invention is to prevent the backflow of rainwater that is stored rapidly in a relatively short time, such as rainy weather or storms that last a long time, and the impurities contained in the stored rainwater It is to provide excellent facilities with a mesh screen unit that can be removed more smoothly.

In addition, while maintaining the optimum cleaning effect, it is possible to provide a good facility equipped with a mesh screen unit in which the passage of overflow water can be smooth and the pressure can be more evenly distributed over the entire surface of the mesh screen unit.

Figure 1 is a cross-sectional view of the embodiment of the excellent equipment installed mesh screen unit to which the present invention is applied.

2 is a plan view of FIG.

Figure 3 is a cross-sectional view showing another embodiment of the excellent equipment installed mesh screen unit to which the present invention is applied.

4 is a plan view of FIG.

5 is an exemplary view showing a modification of the embodiment according to FIGS. 1 and 2.

6 is an exemplary view showing a modification of the embodiment according to FIGS. 3 and 4.

** Description of symbols for the main parts of the drawing **

10: delay tank 20: drain tank

30: mesh screen unit 40: holding member

50: Excellent facility

The present invention for achieving the above object,

A sump connected to the at least one inlet pipe and the at least one drain pipe;

A mesh screen unit disposed inside the sump and including a mesh screen having a parallel screen bar, and a dust removing means positioned between the screen bars of the mesh screen and attached to the dust removing member to move back and forth;

A partition located inside the sump, the partition dividing the sump into an inflow space and a drainage space, and having a mesh screen unit attached to an upper end thereof having an upward slope at an angle of 90 degrees or less from a vertical plane;

Arranged in the flow direction behind the mesh screen unit, it comprises a holding member arranged on the upper end placed on the bottom of the mesh screen unit to increase the storage amount.

Hereinafter, based on the accompanying drawings will be described in more detail excellent equipment installed mesh screen unit of the present invention.

1 is a schematic cross-sectional view of a portion of stormwater facility 50, the stormwater facility 50 being connected to the retardation tank 10 by means of a soft water tank 10 (only a part of which is shown) and a flood hole 22 '. It consists of a tank 20.

The sump 20 has a bottom surface 21 spaced apart from each other, two side walls 22 and 23, a front wall 19, a rear wall 18 and a partition 24, the partition being drained. Arranged in the longitudinal direction of the bath 20.

The inlet chamber 25 formed by the bottom surface 21, the side walls 22 and 23, the front wall 18, and the rear wall 19 is partitioned by the inlet 25 ′ and outlet 25. Is divided into ").

The floodplain 22 'extends substantially over the entire length of the side wall 22. The outflow tank 25 "is connected to the inflow pipe 26 which penetrates the front wall 19, and the outflow pipe 27 which penetrates the rear wall 18. As shown in FIG.

An outflow pipe 28 penetrating the rear wall 18 is formed in the outflow tank 25 ".

In addition, a mesh screen unit 30 is provided on the partition 24 to separate the inflow tank 25 'and the outflow tank 25 ", and the mesh screen unit 30 includes a plurality of screen bars spaced in parallel. 31 is integrally formed with a mesh screen 30 '(shown schematically), and the mesh screen 30' is provided with a debris removal means 35 which is movable back and forth.

In this case, when the mesh screen 30 ′ is formed longer, it is preferable that a plurality of contaminant removing means 35 are provided.

Such debris removal means 35 is formed in the blade-shaped foreign matter removal member is aligned so as to correspond between the screen bar 31 of the mesh screen 30 'as can be seen in the European Patent Application (EP-A 0 358 952) Provided.

The retaining member 40 is a plate shape formed along the scalpel screen 30 and is fastened to the partition 24 so as to be located behind the mesh screen 30 ', that is, inside the outlet tank. The retaining member 40 protruding therein is inclined by an alpha angle from the vertically installed mesh screen 30 '.

The fastening device 41 is formed such that the retaining member 40 can be adjusted to a position relative to the mesh screen 30 'or fixed in an intended position. That is, the relative angle of the retaining member 40 with respect to the mesh screen 30 'can be adjusted according to the amount of water accumulated, which can be appropriately adjusted by the sensor.

1, the height N1 for discharging rainwater from the inflow tank 25 'to the outflow tank 25 "is raised by the holding member 40 which forms the height N2.

Thus not only the amount of rainwater stored in the inlet tank is increased, but the water pressure is evenly distributed over the entire surface of the mesh screen 30 '. In addition, as the passage of rainwater through the floor space of the mesh screen 30 'is reduced, each screen bar 31 can be kept in the state of filtering out more suspended solids so that the optimum effect of rainwater equipment is achieved. do.

In particular, as the passage of rainwater is reduced, the float is not attracted along the rainwater passing.

FIG. 2 is a plan view of the rainwater facility 50 in which the mesh screen unit to which the present invention is applied is arranged after the retardation tank 10. The front wall 19, the rear wall 18, and two side walls 22 and 23 are shown in FIG. The sump 20 (shown schematically) and partition 24 formed essentially by.

In addition, the contaminant removing means 35 may be moved in the front and rear directions, that is, the X direction as shown, by a separate means, and the contaminant removing means 35 includes a screen bar of the mesh screen 30 '. A dirt removal member 36 formed in a triangle aligned between the 31 is formed.

Rainwater or rainwater is supplied to the inlet 25 'in the direction of arrow 1 through the inlet pipe, not only to be discharged in the direction of arrow 1 " through the outlet pipe 27, but also to the arrow 1 through the floodplain 22'. It is discharged into the retardation tank 10 in the 'direction and the rain is stored up to the height N.

Then, when the height of the stored storm reaches N2, it is guided in the direction of arrow 2 through the mesh screen 30 'over the upper boundary 29 of the retaining member 40 and into the outflow tank 25 ", which causes The suspended solids contained are drained in the direction of arrow 3 through the outlet pipe 28 as cleaned.

Figure 3 is a cross-sectional view showing another embodiment of the storm water is equipped with the mesh screen unit to which the present invention is applied, the storm water 150 is partly shown by the delay tank 110 and the overflow hole (122 '). It is formed of the first sump 120 connected, which is essentially consistent with the stormwater system 50 described above.

Such excellent equipment 150 includes a drainage tank including a bottom surface 121 and two side walls 122 and 123, a front wall 119 and a rear wall 118, and a longitudinal direction of the drainage tank 120. Partition 124 is arranged in an array.

In addition, the overflow hole 122 ′ extends over the entire length of the side wall 122.

The drain chamber 125 formed of the bottom surface 121, the side walls 122 and 123, the front wall 119, and the rear wall 118 is formed by the partition 124 and the inflow tank 125 ′ and the outflow tank 125. Inlet tank 125 ′ is connected to inlet pipe 126 through front wall 119 and to outlet pipe 127 through back wall 118. The outlet pipe 127 is connected to the outlet tank 125 ".

In addition, a mesh screen unit 130 having a mesh screen 130 'formed integrally with the screen bars 131 spaced in parallel to each other is installed on the partition 124, and the mesh screen 130' is installed in the mesh screen 130 '. The dust removal means 135 which is movable back and forth is installed.

Meanwhile, rainwater flows into the outlet tank 125 "through the upper boundary 129 of the mesh screen unit 130, and the rainwater that flows in is drained through the outflow pipe 128 '.

The holding member 140 is a plate shape formed along the scalpel screen 130 'and is fastened to the partition 124 so as to be located behind the mesh screen 130', that is, inside the outlet tank. The holding member 140 protruding into the inside is formed to be inclined by an alpha angle from the vertically installed mesh screen 130 '.

The fastening device 141 is formed such that the retaining member 140 can be adjusted to a position relative to the mesh screen 130 'or fixed at an intended position. That is, the relative angle of the holding member 140 with respect to the mesh screen 130 'can be adjusted according to the amount of water accumulated, which can be appropriately adjusted by the sensor.

FIG. 4 is a plan view of the rainwater facility in which the mesh screen to which the present invention is applied is arranged, which is arranged behind the retardation tank 110 and has a front wall 119, a rear wall 118, two side walls 122 and 123, and a partition 124. It consists of a first sump (120) formed essentially by.

In this case, the mesh screen unit 130 (illustrated schematically) may be moved in a forward and backward direction, that is, an arrow X 'direction by a separate means, and the screen bar 131 may have a triangular blade shape. The dirt removal means 135 in which the removal member 136 is formed integrally is installed. An inflow pipe 126 is attached to the front wall 119, and rainwater is supplied to the inflow tank 125 'in the direction of arrow 1 through the inflow pipe.

On the other hand, the second sump 160, which is allocated to the mesh screen unit 130 is further formed in the inlet 125 'of the first sump 120.

The second sump 160 further forms a preliminary chamber 161 disposed above the mesh screen 130 ′, and the preliminary chamber 161 of the second sump 160 is shown in FIG. 4. As shown, the isolation walls 163 are separated to form the screening axis 162, whereby the prechamber 161 and the screening axis 162 are connected through an opening 162 ′. At this time, the screening axis 162 accepts the screening excellence supplied from the mesh screen 130 '.

In the bottom region of the second sump, the screening axis 162 has a sliding member 165 to drain the screening water, and the sliding member 165 is a pulling member to open and close the sliding member 165. 171 is automatically connected to the drive 170.

Rainwater supplied to the inflow tank 125 ′ through the inflow pipe 126 is discharged in the direction of arrow 1 through the outflow pipe 27.

When the stored height reaches N2, the rainwater is guided to the delay tank 110 in the direction of arrow 1 '.

At this time, when the height of rainwater stored in the inflow tank 125 'reaches N3, it flows into the prechamber 161 of the second drainage tank 160 and delays there until the height N2 of the delay member 140 is reached. do.

Water flowing in the direction of arrow 2 through the mesh screen 130 ′ over the retardation member 140 flows into the outflow pipe 128 to discharge the suspended solids as washed water.

Thus, the retaining member attached to the partition 24 or 124 must optionally maintain the angle of alpha from the mesh screen unit 130. At this time, the amount of overflow water can be adjusted by the inclined surface of the holding member 140 with respect to the mesh screen unit 130.

FIG. 5 is a cross-sectional view showing yet another embodiment of the storm water installation in which the mesh screen unit of the present invention is installed, which is consistent with the embodiment described above with reference to FIGS. 1 and 2 except for the embodiment described below.

That is, FIG. 5 is different from FIG. 1 in that the mesh screen unit 30 is inclined, and the upper boundary thereof is inclined in the direction with respect to the inflow tank 25 '.

That is, the mesh screen unit 30 is supported in a stable state on the inclined partition 24. The mesh screen 30 'is then attached to the side of the mesh screen 30' facing the inlet 25 'and its lowest bottom is essentially partition 24 facing the inlet 25'. Coincides with the side-division plane of. At this time, the upper boundary of the partition 24 facing the outlet 25 "is higher than the lowest bottom point of the mesh screen 30 '.

The inclination of the mesh screen unit 30 with respect to the inclined surface of the partition 24 allows the inclined surface 224 of the partition 24 itself to assume the function of the retaining member 40 according to FIG. 1. That is, such a holding member 40 is formed.

As an alternative, the separate retaining member 40 is locked in shape over the upper surface 224 to project the upper surface 224 of the partition 24 from the effect of water flowing over the upper side of the female side (girl). For example, in the form of a thin sheet metal.

In this embodiment, the mounting of the retaining member is dramatically simplified, or as described above, a separate retaining member (except for the inclined surface of the partition 24) can be dispensed, thus the complexity of this embodiment is corresponding. Is reduced.

In a particularly simple manner, the retaining member can be formed directly by the base plate of the mesh screen unit 30 ', with the base plate of the mesh screen unit covering the upper side 224 and with respect to the side of the partition. It is selectively pulled over the boundaries and mounted on the partition.

An additional advantage of tilting the mesh screen unit 30 lies in the fact that when the water level begins to drop in the inlet channel, water can flow back better off the screen to the inlet channel.

Therefore, the remaining fresh water can be easily prevented from remaining in the mesh screen unit after the inflow water level has fallen to the normal water level.

Moreover, the inclination of the mesh screen unit has the advantage of better peeling off the final upper end of the contaminant removal member because the screening water falls off better.

This eliminates the risk of collecting large amounts of screening water in the outer area of the mesh screen.

In addition, the hydraulic device mounted on the upper side of the mesh screen 30 'and driving the dust removing member s is disposed higher and farther from the outflow height, thereby risking soil contamination or contamination of the hydraulic device. Is reduced.

The angle between the horizontal plane and the upper surface 224 of the base plate or partition 2 of the mesh screen unit 30 'is 30 degrees. However, the angle of inclination may vary from 15 degrees to 60 degrees, preferably in the range of 30 degrees to 40 degrees.

6 shows a modified design of the embodiment according to FIGS. 3 and 4. Therefore, the mesh screen unit 130 has the same inclination as in FIG. 5, and the inclination and the arrangement of the holding member of the mesh screen unit are the same as those described in FIG. 5.

Further, all devices associated with the upper sump 160 as well as the mesh screen unit 130 are as shown in FIG. 3, and the front wall of the sump 160 facing the inlet space 125 ′ is In spite of the inclination, the overflow height N3 is formed to extend higher than the height N defined by the bottom boundary of the opening 122 '.

In addition to the above modifications, all the embodiments shown in FIG. 6 are the same as the configuration and operation according to FIGS. 3 and 4.

As described above, the present invention has been described with reference to the embodiments shown in the drawings, but this is merely exemplary, and those skilled in the art may understand that various modifications and equivalent other embodiments are possible therefrom. will be. Therefore, the true technical protection scope of the present invention should be defined by the technical spirit of the appended claims.

As described above, in the rainwater facility equipped with the mesh screen of the present invention, it prevents the backflow of rainwater that is stored rapidly in a relatively short time, such as a rainy season or a storm, which lasts a long time, and smoothes the impurities contained in the rainwater. Very useful effect that can be removed.

Claims (5)

A sump connected to the at least one inlet pipe and the at least one drain pipe; A mesh screen unit disposed inside the sump and including a mesh screen having a parallel screen bar, and a dust removing means positioned between the screen bars of the mesh screen and attached to the dust removing member to move back and forth; A partition located inside the sump, the partition dividing the sump into an inflow space and a drainage space, and having a mesh screen unit attached to an upper end thereof having an upward slope at an angle of 90 degrees or less from a vertical plane; The mesh screen unit is excellent equipment is installed, characterized in that arranged in the flow direction behind the mesh screen unit, arranged on the upper end placed on the lower end of the mesh screen unit is made of a holding member to increase the storage amount. 2. The mesh screen unit of claim 1, wherein the retaining member includes a retaining member protruding into the sump and attached to the partition, wherein the retaining member is formed to increase the amount drained from the inlet to the sump. Installed excellent equipment. 3. The stormwater installation system according to claim 1 or 2, wherein the inclination of the holding member relative to the mesh screen unit is adjusted and fixed in position as a function of the amount of water collected. 4. The mesh screen unit of claim 3, wherein the sump includes an overflow boundary located at an inlet connected to the mesh screen unit and above the mesh screen unit, wherein the sump is provided with a preliminary chamber. Excellent facility installed. 5. The stormwater installation system according to claim 4, wherein the inclination of the retaining member relative to the mesh screen unit is adjusted and fixed in position by sensor control as a function of water height in the prechamber.