KR101231115B1 - A upgrading apparatus of flocculation and sedimentation basins - Google Patents

Abstract

The present invention is a technique for improving the performance of the flocculation sedimentation battery used in the water treatment plant or sewage / wastewater treatment plant. SUMMARY OF THE INVENTION An object of the present invention is to distribute the amount of raw water flowing into various flocculation settled batteries installed in parallel, and to distribute the amount of overflow flowing through the overflow weir of the supernatant water collecting device evenly, thereby improving the performance of the flocculation settlement battery and It is to provide a device. The present invention for this purpose, the raw water inflow flowmeter for measuring the amount of raw water flowing into the water purification plant; A raceway rectifying wall for preventing the flow of raw water flowing into the raceway; An arithmetic controller configured to arithmically control the water inclination and the raw water inflow opening degree generated when the raw water flows through the raceway; A raceway configured to maintain a constant flow rate of raw water; A raw water inlet gate and an electric switchgear for equally distributing the amount of raw water flowing into each flocculation and sedimentation unit; Optionally, a calculation controller for measuring the water level of the waterway and the flocculated sedimentation basin and a level controller of the level gauge to control the opening degree of the raw water inflow gate flowing into each flocculent; A vortex generating device that is selectively installed in the raceway to help coagulation; And installed in the rear end of the sedimentation basin, and evenly collect the supernatant water, to provide a flocculation settlement cell with improved performance, characterized in that it comprises a supernatant water equalization device to prevent the drift and increase the sedimentation effect.

Raceway, rectifier wall, raw water equalization inlet device, supernatant water equalizer, operation controller.

Description

A upgrading apparatus of flocculation and sedimentation basins}

The present invention relates to a device for improving the performance of a flocculation sedimentation battery in a water treatment plant or a sewage / wastewater treatment plant.

In a water treatment plant, flocculation sedimentation equipment is a facility that produces clean supernatant water by removing suspended solids (SS) and some organic substances in raw water, and is a very important water treatment process that removes foreign substances in raw water from a water treatment plant together with a subsequent filter paper.

In sewage / wastewater treatment plant, flocculation sedimentation system is used as a pretreatment process of biological process or as a tertiary treatment process installed at the rear of biological process, and plays an important role to remove phosphorus or suspended solids in sewage / wastewater.

Factors that greatly affect the performance of flocculated sedimentation basins are basically hydraulic retention time and flow within the sedimentation basin, type and amount of flocculant, proper operation of flocculator, water temperature and density flow.

Among the influence factors, the factors affecting the flow in the sedimentation basin and the hydraulic retention time uniformly are the flow rate of the raw water, the rectifying wall, and the supernatant water collecting unit of the sedimentation basin.

When the flocculant is injected into the raw water and rapidly stirred in the mixed paper, the flocculant and the suspended matter in the raw water react to generate fine particles called primary floc or micro floc.

The raw water containing this initial floc flows into the coagulated sedimentation basin which is generally composed of 2 to 10 branches and installed in parallel through the raceway.

Overflow weir equations and raw water inflow hydrographs are widely used to distribute the amount of raw water flowing into the flocculated sedimentation basin.

There are triangular weirs in the form of triangular weirs and quadrilateral or full-width weirs. In triangular weirs, the monthly flow is proportional to 2.5 times the overflow head. It is rarely used to distribute even flow rates in long channels such as raceways because of the difference in flow rates.

Diving hydrographs are widely used because the flow rate through the hydrograph is proportional to the square root (root) of the head difference before and after the raw water inlet gate.

However, in the flocculated sedimentation basin, slowing the flow rate of the raceway is a factor that inhibits the flocculation action, so the flow rate of the raceway should be made as fast as possible.

If the flow rate in the raceway is increased, the flow in the raceway becomes turbulent and the initial particles are agitated vigorously, colliding and developing into a larger flocculation floc, entering the flocculant. As the action continues, flocculation occurs more effectively in the flocculation basin than when the flow rate in the raceway is slow.

It is known that a suitable flow rate in the raceway is preferably 0.5 to 0.75 m / s.

If the flow velocity in the raceway is so fast, it helps to flocculate, but the slope of the water surface (tilt) occurs and the velocity head occurs, making it difficult to distribute the amount of raw water flowing into the flocculator.

Thus, many coagulated settler raceways are still being built at a slow rate.

The supernatant water collector is another important facility in the coagulation sedimentation battery, because the appropriateness of the supernatant water collector determines the flow of sedimentation disturbances in the sedimentation basin.

Normally, due to the ease of manufacture, the triangular weiring water collecting device is widely used, but the triangular weiring water collecting device has a large flow rate variation even at a small water head because the monthly flow rate is proportional to the 2.5 power of the water head as described above. Generated, it is extremely difficult to collect evenly.

In some cases, the diving orifice type loader is used as the water collecting device. When the diving orifice type loader is used as the collecting device, the installation position of the diving orifice becomes deeper on the water surface when the length of the loader becomes longer. The problem of reducing the dose arises.

For this reason, there is a need for a method and apparatus for promoting coagulation in a raceway, equally distributing the inflow of raw water at small head gaps, and evenly collecting the supernatant of the flocculation settler.

An object of the present invention is to increase the performance of the coagulation sedimentation device including a water collecting device for promoting coagulation in the raceway, evenly distribute the inflow of raw water at a small head, and equally collecting the supernatant of the coagulation sedimentation battery. To provide.

The present invention for this purpose, the raw water inflow flowmeter for measuring the amount of raw water flowing into the water purification plant; A raceway rectifying wall for rectifying the drift of raw water flowing into the raceway; An arithmetic controller configured to arithmically control the water inclination and the opening degree of the raw water inflow gate generated when the raw water flows through the raceway; A raceway configured to maintain a constant flow rate of raw water; A raw water inlet gate and an electric switchgear for equally distributing the amount of raw water flowing into each flocculation and sedimentation unit; Optionally, an operation controller for controlling the opening degree of the raw water inflow gate flowing into each coagulation settlement cell by calculating a water level signal for measuring the water level of the raceway and the flocculation settler; A vortex generating device that is selectively installed in the raceway to help coagulation; It is provided at the rear end of the sedimentation basin, and evenly collects the supernatant water, to provide a device for improving the performance of the flocculation settlement cell, characterized in that it comprises a supernatant equalization collector to prevent the drift and increase the sedimentation effect.

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The flocculation sedimentation battery which improved the performance of this invention is equal in the quantity of raw water which flows into each flocculation sedimentation battery, and collects the supernatant water evenly over the whole length of a supernatant water collecting device, ensuring the hydraulic residence time of a flocculation sedimentation cell, By preventing drift in the interior and facilitating flocculation of the initial floc in the raceway, it is effective to increase the flocculation sedimentation efficiency, to produce clean supernatant water, to extend the filtration duration of the subsequent filtration process, and to produce economically clean tap water. .

When raw water flows into the water treatment plant, flocculant is injected from the mixed paper and rapidly stirred to generate a primary floc, grow into a large floc at the flocculated sedimentation basin through the raceway, and separate the solid solution using gravity.

In this case, in order to increase the performance of the flocculating sedimentation basin, the most important factor is the adequacy and miscibility of flocculant injection and the proper operation of the flocculator.

However, the equality of raw water flow and the equal catchment of the supernatant water collecting device are equally important factors as in the proper operation as described above.

Equal amount of raw water inflow to the flocculation sedimentation basin is necessary to secure hydraulic residence time of the flocculation sedimentation basin.Equivalent catchment of the supernatant water collecting device maintains an equal flow without drift in the sedimentation basin, thereby increasing sedimentation efficiency absolutely. It is necessary.

If the flow rate in the raceway (C) connecting the flocculation settlement in the mixed paper may be very slow, for example, about 0.1 m / s, the surface of the raceway has the same surface level as the stationary horizontal plane with almost no water inclination due to the flow rate. Therefore, the method of evenly injecting the raw water flow rate into the flocculated sedimentation basin is very simple, and using the raw water inlet gate, the opening area of the raw water inlet gate is determined to be less than 2.5% by using only 0.1 m of the loss head of the raw water inlet gate. It can be distributed evenly within the deviation range.

However, the flocculation channel of the flocculating settler is not a simple passage of water, but is a part of the flocculent where the initial floc in the raw water from the blended paper (b) must remain coherent, so the flow rate of 0.5 to 0.75 m / s must be maintained. When the flow rate flows into the raceway at such a high rate, a slope occurs on the surface of the water, and the difference between the level of the raceway (C) and the coagulation settler (A) of the raw water inflow gate 300 is different. Inflow of raw water is difficult.

The slope of the water surface (inclined) that occurs when water flows through the open waterway is represented by Manning's equation as shown in [Equation 1], and the head of loss is represented by [Equation 2].

[Equation 1]

Where I: surface slope (= h / L)

        n: Surface roughness of the channel (concrete surface = 0.013)

        V: average flow rate (m / s)

        R: Mindfulness (waterway cross section / reception length)

&Quot; (2) "

. . .

Where h ₁ : Loss head in the channel (m)

h _1.1 ~h _1.8: head loss generated in the raceway in the raw water inlet sluice located at one time to 8 (m)

I ₁ ~ ₈ : Surface slope according to the position of raw water inflow gate from 1 to 8

L _{1 to 8} : Channel lengths by number of locations of raw water inlet sluice from 1 to 8 (m)

As an example of the water slope of the raceway, the following calculations are made for the raceway having the following conditions.

Raceway conditions

Flow rate: 1.92㎥ / s

Average flow rate: 0.6 m / s (0.3 m / s in 8 section only)

Raceway Width: 0.8 m

Raceway Inlet Water Depth: 4m

Raw water inflow gate size and quantity: 600 × 600 mm × 8

Opening rate based on raw water inflow sluice: 80%

Distance from the entrance of the raceway to the center of each raw water inlet gate

The following table shows the surface slope and loss head of each raw water inflow hydrograph center by applying [Equation 1] and [Equation 2].

[Table 1] Surface slope and head loss calculation table

As calculated in [Table 1], the loss head at the center of the last raw water inlet gate of the raceway is 0.0139m = 1.39cm = 13.9mm.

On the other hand, the opening area (open area) of one raw water inflow sluice of 80% opening is 0.288 m 2 and the flow rate is 0.24 m 3 / s, so the flow rate through the raw water inflow sluice is 0.833 m / s.

The head of loss occurring at the raw water inflow gate is shown in [Equation 3].

&Quot; (3) "

Where h ₂ : Loss head (m) generated from the raw water inflow gate

        C: Flow coefficient (0.65)

        V: flow rate of raw water inlet gate (m / s)

g: acceleration of gravity (9.8m / s ² )

The loss head calculated by substituting 0.833 m / s for the flow rate in [Equation 3] is as follows.

Meanwhile, the flow rate through one raw water inflow gate is calculated as shown in [Equation 4].

[Equation 4]

Where Q is the flow rate through one raw water inflow gate (㎥ / s)

        A: Passage area of raw water inflow gate (㎡)

        V: flow rate of raw water inlet gate (m / s)

        C: Flow coefficient (0.65)

g: acceleration of gravity (9.8m / s ² )

h ₂ : Head difference before and after the raw water inflow gate (m)

In Equation 3, since h ₂ is the head difference before and after the raw water inflow gate, the water level difference between the surface of the raceway and the inlet of the flocculation settlement at the position where the raw water inflow gate is installed, and by the speed of the raw water passing through the raceway, ], The water level of the channel is inclined by the loss head h1 of [Table 1] calculated by [Equation 2], and the level of each coagulated sedimentation basin is different by the difference of the installation height of the supernatant water collecting device. The flow rate through the water gate is different.

Ideally, the installation height of the supernatant water collector of each coagulation sedimentation cell in the coagulation sedimentation basin is the same, but in large coagulation sedimentation cells, the height difference of the installation of the supernatant water collector of each coagulation sedimentation cell is about 5mm, so this height The water level of the flocculation settler is set in consideration of the difference, and the flow rates of the raw water inlet gate 1 and the raw water inlet gate 8 in consideration of the water slope of the raceway are as follows.

Condition 1

* Frequency of sleep slope: same as [Table 1]

* Water level at the inlet of cohesive sedimentation cell: same

* First Raw Water Inflow Gate

-Head Loss: 0.001m

-Flow rate: 0.24

-Head inflow loss of raw water: 0.084m

* 8th raw water inflow gate

-Head Loss: 0.0139m

-Head inflow loss of raw water: 0.084-(0.0139-0.001) = 0.0711m

* No. 8 raw water inflow passage (calculated by Equation 3)

= 0.220 m3 / s

* Difference in the flow rate between the first inflow gate and the eighth gate

(0.220 / 0.24) × 100 = 91.6%

100-91.6 = 8.3% (8% less water flows than raw water inlet gate)

Condition 2

* Frequency of sleep slope: same as [Table 1]

* Water level at the inlet of the flocculation settler: The water level of the 8th raw water inlet sluice is 5mm higher than the water level of the 1 point raw water inlet sluice

* First Raw Water Inflow Gate

-Head Loss: 0.001m

-Flow rate: 0.24

-Head inflow loss of raw water: 0.084m

* 8th raw water inflow gate

-Head Loss: 0.0139m

-Head inflow loss of raw water: 0.084- (0.0139-0.001) -0.005 = 0.0661m

* Flow rate through the number 8 raw water inflow gate (calculated by Equation 4)

= 0.216㎥ / s

* Difference in the flow rate between the first inflow gate and the eighth gate

(0.213 / 0.24) × 100 = 88.75%

100-88.75 = 11.25% (No.8 raw water inflow is 11.25% less)

Condition 3

* Frequency of water slope: same as [[Table 1]]

* Water level at the inlet of the flocculation settler: The water level of the 8th raw water inlet sluice is 5mm lower than the water level of the 1st raw water inlet sluice

* First Raw Water Inflow Gate

-Head Loss: 0.001m

-Flow rate: 0.24

-Head inflow loss of raw water: 0.084m

* 8th raw water inflow gate

-Head Loss: 0.0139m

-Head inflow loss of raw water: 0.084- (0.0139-0.001) + 0.005 = 0.0761m

* No. 8 raw water inflow passage (calculated by Equation 3)

= 0.228㎥ / s

* Difference in the flow rate between the first inflow gate and the eighth gate

(0.228 / 0.24) × 100 = 95%

100-95 = 5% (5% less water flows from source 8)

As a result of the calculation, the maximum passage flow rate difference is 11.25% and the minimum flow rate difference is 5%.

Since the 8th raw water inflow gate is physically limited in head water difference, the opening degree of the raw water inflow gate should be increased to pass the same amount of raw water, and the flow rate through the raw water inflow gate is proportional to the open area of the water gate. It can be seen that the opening degree of the door should be increased by 5 to 11.25% depending on the conditions.

The water level difference between the raceway and the coagulant settler at the position of the raw water inlet gate No. 1 is h _2.1 , and the water level difference between the waterway and the coagulant settler at the raw water inlet gate No. 8 is h _2.8 , and A ₁ is the opening area of the first inlet gate , A ₈ is the opening area of the raw water inlet gate No. 8, the opening ratio of the raw water inlet gate for passing the same raw water flow rate is derived from [Equation 4] from [Equation 5].

Where Q ₁ : Raw water flow through the number 1 raw water inflow gate (㎥ / s)

Q ₈ : Raw water flow through the 8 raw water inlet gate (㎥ / s)

Since the flow rate of each raw water inlet gate should be the same

[Equation 5]

Where A ₁ and A _{8 are the} opening areas of the raw water inlet gates 1 and 8.

Since the raw water inlet sluice is a quadrilateral sluice, the opening area ratio is the same as the opening degree.

&Quot; (6) "

Where Or1. Or8: Opening degree of raw water inlet 1 and 8 of raw water inlet

Generalizing [Equation 6] is expressed as [Equation 7].

[Equation 7]

Where Or ₁ :% of raw water inflow gate 1

        Orn: Opening degree of raw water inlet number n (%)

h ₂₁ : Head of loss of raw water inlet 1 (m)

h ₂ n: Head of loss of raw water inlet n (m)

If the opening degree of the raw water inflow gate is adjusted as shown in [Equation 7], the flow rate through each raw water inflow gate is the same.

When the raw water is introduced into the water purification plant, the raw water inflow is measured by the raw water inflow flowmeter 100.

The raw water is rapidly stirred in the mixed paper (b) and then introduced into the raceway (c), and the porous rectifying plate 150 is installed at the inlet of the raceway to prevent drift to uniformly flow the raw water.

A partition 200 is installed between the raceway (C) and the coagulated sedimentation basin (A), and an opening 250 for installing the raw water inflow gate is formed at each corner of the partition, and the raw water inflow gate 300 is formed in the opening 250. ), And the raw water inflow gate 300 displays the opening degree, and receives the control signal of the operation controller 120, the electric switchgear that can adjust the opening degree of the raw water inflow gate 300 by electric according to the signal ( 350).

The operation controller 120 inputs information on the raw water inflow flow rate and the cross section area, the flow rate, the cross-sectional shape, and the length of the raceway length of the raceway, and automatically the water surface slope, the loss head, and the raceway at each position of the raceway (C). And calculates the water level difference between the coagulation settler, and transmits a control signal to the electric switchgear 350 to automatically adjust the opening degree of the raw water inlet gate 300 to control the amount of raw water flowing into each coagulation sedimentation basin (a) evenly. .

If it is necessary to strictly equalize the amount of inflow water into each coagulation sedimentation cell (a), water gauges 400a and 400b are installed at the center of the waterway (c) and the coagulation sedimentation cell (a) for each coagulation sedimentation basin. By measuring the water level difference between the waterway (C) and the coagulation sedimentation cell (A) at the position where each raw water inflow gate 300 is located and transmits it to the operation controller 120, the operation controller 120 uses [Equation 7]. By controlling the opening degree of each raw water inflow gate 300 to automatically control so that the same amount of raw water flows into each coagulation sedimentation cell (a) (see Figs. 1 and 2).

The vortex generator 700 installed in the raceway (C) to promote the coagulation action is fixed to the raceway (C) by the fixture 800, the cross section is rectangular or rhombus, or T-shaped at regular intervals to the raceway (C). Or, a square vortex rod is installed vertically, vortices are generated by the flow rate of raw water flowing through the raceway (c), and the initial floc is coagulated so as to become a larger floc. (FIGS. 13, 14, and 15). Reference)

The cross-sectional shape of the vortex rod is not limited to that illustrated above, and a circular, elliptical, inverted triangle, or the like may also be used.

The supernatant equalization water collecting device 500 installed at the outlet side of the flocculated sedimentation basin (A) is configured as follows.

As an embodiment of the equalization water collecting device 500, the full width weir 530 is fixed to both sides of the U-shaped concrete trough 505, and the full width weir adjusting blade 531 is screwed on the full width weir 530. 532) so that the height can be adjusted in a variable manner, or only the full width weir 530 is installed without the full width weir adjusting blade 531. (See FIGS. 7 and 8)

Diving orifice plate 520 is integrally formed on the outside of the full width weir 530 and installed vertically, up to the surface of the water, and the diving orifice 520-1 is drilled in parallel in the lower water to collect the upper water equalization device ( 500).

Another embodiment of the equalization water collecting device 500 is fixed to the full width weir adjustment blade 531 on the upper portion of the U-shaped loader 510 with a screw 532, as shown in Figure 9 or to adjust the height variable The inner wall of the U-shaped loader 510 is used as the full-width weir, and the diving orifice plate 520 is integrally formed on the outer wall of the U-shaped loader 510 and installed vertically above the surface of the water. The diving orifice 520-1 is drilled in parallel to configure the equal water collection device 500.

The upper water equalization water collecting device 500 is a triangular weir type water collecting device widely used due to the ease and simplicity of manufacture, but as described above, the triangular weir has a large flow rate at a small head difference because the flow rate of the monthly flow increases in proportion to 2.5 times the head. It is unsuitable as a supernatant equalizer because it causes a change.

Since the U-shaped launder 510 having the submersible orifice 520-1 has a square root of the flow characteristic for the head difference, it may be used for even water collection, but theoretically, the flow characteristic is the head difference. It seems to be preferable because the change in the flow rate of the head difference is small due to the square root characteristic of, but when the length of the supernatant collector is long, the water surface slope occurs and the orifice should be submerged under this water surface. There is a closed end of the effective capacity of the decrease and the load is increased, the economic burden increases, the orifice hole has to be processed to a certain height, there is a problem that manufacturing is difficult to manufacture.

According to the present invention, the U-type loader 510 is installed as described above to use the upper surface of the U-type loader 510 as a full width weir, and the diving orifice plate 520 is perpendicular to the outside of the U-type loader 510. By installing this, the submersible orifice 520-1 was installed at a shallow position from the surface of the U-type loader 510, regardless of the water inclination, thereby minimizing the reduction of the effective capacity of the flocculating settler battery and enabling even water collection. .

Since the surface of the flocculated sedimentation basin is a complete horizontal plane, the U-type loader 510 of the supernatant water collecting device 500 of the present invention, when installed in the sedimentation basin, the U-type loader manufactured in the factory, U at the surface of the sedimentation basin By adjusting the height to the end of the diving orifice plate 520 provided on the outer side of the mold, the horizontal and height can be easily adjusted uniformly so that the supernatant can be collected evenly.

In order to prevent floc destruction, the loss head of the equal water collecting device 500 of the present invention is preferably set to be small in the range of 40 to 50 mm, and the width and depth of the loader are determined in consideration of the surface slope according to the Manning equation.

The procedure of the method for improving the performance of the flocculation needle battery of the present invention is as follows.

1) Obtain the amount of raw water flowing into the water purification plant from the raw water inflow flowmeter 100.

2) Divide the raw water flow rate by the number to find the flow rate that passes through one channel.

3) Calculate the water slope and loss head (h ₁ ) at each raw water inlet gate location by calculating the flow rate, flow velocity, circumference, and the distance from the inlet to the center of the hydrograph through the raceway (Equation 1). [Equation 2])

4) Calculate the each of the raw inlet water contact head loss ₍₂ h) obtaining the difference between each of the raw water inlet and a water level of the water level of the coagulation sedimentation basin inlet raceway in water gate position.

5) Set the opening degree of No. 1 raw water inflow gate as the standard opening degree (75 ~ 80% is appropriate but not limited to this value)

6) In the standard opening of No. 1 raw water inlet gate, determine the size of raw water inlet gate so that the head of loss is less than 100mm when the specified flow rate passes. (100mm or less is not a desirable value but is not limited to this value)

7) Using [Equation 7], calculate the opening degree of each raw water inflow gate.

8) The calculation controller calculates the calculation formula of the above process, and automatically controls the opening degree of each raw water inflow gate.

9) In order to completely equalize the flow rate flowing into each flocculation settler, the level difference is accurately measured by installing level gauges in the channel and the flocculation settler for each flocculation settler, and then the equations in the operation controller Automatically adjust the opening.

10) The upper water equalization collector installed at the end of the sedimentation basin has full width weir on the side wall of U type loader and vertically installs diving orifice plate up to the surface of the water, and the height of all wide weir extends over the diving orifice. The supernatant is collected evenly by using the loader.

Another embodiment of the present invention is a four-square sedimentation basin having a pre-registered patent No. 10-0759846 (2007.08.27) suspension type supernatant water collecting device, as described above, the full width weir in the diving orifice plate of the present invention The U-shaped loader 510 having a fixed height is fixed on the suspension support 4 to constitute a supernatant water collecting device 500 (see FIGS. 10, 11, and 12).

Since the description of another embodiment of the present invention has already been described in detail with reference to Patent No. 10-059846 and the description of the present invention, the description thereof is omitted and the configuration thereof is shown in the drawings.

1 is a plan view showing a configuration of the present invention.

2 is a cross-sectional view of the raceway of the present invention.

3 is a longitudinal cross-sectional view of the raceway of the present invention.

Figure 4 is a plan view of the equal water collection device of the present invention.

Figure 5 is a cross-sectional view of the equal water collection device of the present invention.

Figure 6 is a longitudinal cross-sectional view of the equal water collection device of the present invention.

Figure 7 is a cross-sectional view of the equal water collecting device configured to install the full width weir and diving orifice plate on the U-shaped concrete trough of the present invention.

Figure 8 is a cross-sectional view of the upper water equalization water collecting device configured by installing the full width weir adjusting blade and the diving orifice plate on the U-shaped concrete trough of the present invention.

Figure 9 is a cross-sectional view of the upper water equalization water collecting device formed by installing the full width weir adjusting blade and the diving orifice plate on the U-type loader of the present invention.

Figure 10 is a plan view showing that the height can be adjusted from the outside by fixing the upper water equalization collection device configured by installing the full width weir and diving orifice plate on the U-shaped loader on the suspension support of the present invention.

Figure 11 is a horizontal cross-sectional view showing that the height can be adjusted from the outside by fixing the upper water equalization collection device configured by installing the full width weir and diving orifice plate on the U-shaped loader on the suspension support.

Figure 12 is a longitudinal cross-sectional view showing that the height can be adjusted from the outside by fixing the upper water equalization collector configured by installing the full width weir and diving orifice plate on the U-shaped loader on the suspension support.

Figure 13 is a cross-sectional view of the installation of the vortex generator of the present invention.

14 is a plan view showing the vortex generation form of the vortex generating device of the present invention.

15 is a view showing a cross-sectional shape of the vortex generating device of the present invention.

Claims (8)

delete delete delete delete Raw water inflow flowmeter 100 for measuring the amount of raw water introduced; Rectification plate 150 for rectifying the drift of the raw water flowing into the raceway (c); An arithmetic controller 120 for calculating and controlling the water inclination and the inflow valve opening degree generated when the raw water flows through the raceway; A raceway configured to maintain a constant flow rate of raw water; A raw water inflow gate 300 and an electric switchgear 350 for equally distributing the amount of raw water flowing into each aggregate sedimentation basin (a); Water level inflow gate for calculating the water level signals 400a and 400b and water level signals 400a and 400b for measuring the water level of the waterway (c) and the flocculent sedimentation basin (a). An operation controller 120 for controlling the opening degree of the 300; Vortex generating device 700 is installed in the raceway (c) to help the coagulation action; It is installed at the rear end of the sedimentation basin, and evenly collects the supernatant water to prevent the drift and increase the sedimentation effect, and the height of the lower wall is extended above the diving orifice 520-1. It is used as the full width weir 530, the outer orifice plate 520 on the outer side of the sedimentation basin surface is installed vertically and vertically formed by the uniform water collection device 500 or U-shaped concrete trough 505 Fixing the full width weir on the outside, the height of the full width weir extends to the top of the diving orifice (520-1), and the upper orifice of the diving orifice plate 520 on the outside of the full width weaving vertically to the surface of the water Apparatus for increasing the performance of the flocculation sedimentation battery, characterized in that it comprises a uniform collection device (500). The method of claim 5, wherein the side wall of the U-shaped loader 510 is composed of a full width weir 530, or the full width weir adjustment blade 531 is installed on the full width weir 530 of the side wall of the U-shaped loader 510. To install the diving orifice plate 520 vertically to the surface of the outer surface of the U-shaped loader 510, and integrally formed with the U-shaped loader 510, the full width weir 530 is a diving orifice 520 -1) A device for increasing the performance of the flocculation settlement battery, characterized in that it comprises a top water equalization collector 500 extending the height to above. delete The device of claim 5, wherein the cross-sectional shape of the vortex rod of the vortex generator 700 is one of a rhombus, a square, a rectangle, a T, an inverted triangle, and an ellipse.

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