KR20040012354A - System for controlling Regulators - Google Patents

Abstract

PURPOSE: Provided is a system for controlling a storm overflow diverging tank, which has a sensor for detecting flow rate and contamination of wastewater, and controls collection rate of wastewater based on the detected contamination level and flow rate, thereby collecting as much as wastewater which is highly contaminated at an early stage of rainfall and as less as wastewater with low contamination level at the later stage of rainfall. CONSTITUTION: The system comprises a sensing unit with a water level sensor(50) for detecting amount of sewage and wastewater, and a conductivity meter or an MLSS (Mixed Liquor Suspended Solids) meter(51) for detecting pollution level of sewage and wastewater in a storm overflow diverging tank(20); a controller(60) for controlling opening degree of a connection pipe(21) connected between the storm overflow diverging tank(20) and a collection pipe line by performing operation of signals detected by the sensing unit; and an opening/closing unit with a water gate(70) installed on an orifice in the connection pipe and a driving motor(71) for moving the water gate(70) up and down in response to an output signal of the controller(60) to open and close the water gate(70) of the orifice.

Description

Storm Control System {System for controlling Regulators}

The present invention relates to stormwater sediment in the combined sewage system, and more particularly stormwater control system that can be controlled in real time according to the amount of sewage and pollution to be introduced into rainwater tosoil in the rainwater chamber to drain pipe line It is about.

In general, sewage or wastewater or rainwater generated in homes and factories is collected by a drainage facility through an indoor pipe as shown in FIG. 1 and connected to a combined public sewer (10), and the contaminated sewage (10) is (20) is installed between the tea house (30) is a certain amount or more during the rainfall is discharged to the river, etc., the tea house (30) is connected to the sewage end treatment plant (40) sewage flowed in from the storm water chamber (20) The wastewater is sent to the sewage treatment plant 40, and the sewage treated in the sewage treatment plant 40 is discharged to the stream.

Here, the rainwater soil refers to a facility for collecting a certain amount of sewage in rainy weather at the confluence of sewage and transporting it to a sewage treatment plant and discharging the remaining sewage into water such as rivers. In other words, collecting all the sewage from Cheongcheon-si in the combined sewage system and sending a large amount of rainwater to the sewage treatment plant in rainy weather increases the construction cost and maintenance cost of the treatment plant, and it is also uneconomical due to the large-diameter conduit. Therefore, if the amount of sewage planned for each discharge area reaches the planned amount of sewage (3 times the maximum maximum amount of time) during rainy weather, more rainwater is required to be installed so that it can flow to the discharge stream. Such a structure is called storm silt.

The rainwater tosoil is connected to the sewage inlet and the rainwater inlet, and at one side of the rainwater inlet, a connection pipe connecting the sewage to the collecting pipe is installed, and a wear of a certain height is installed on the bottom surface, and the rainwater that overflows the wear immediately flows into the river. It is structure to be discharged into

By the way, the conventional rainwater silsoil is to install a screen on the orifice installed in the connection pipe for ease of maintenance, which causes the connection pipe is often occluded, causing overflow accident.

In addition, in order to pick up three times the maximum amount of sewage, the height of the overflow wear is very low, so in Korea, when the construction is designed according to the sedimentary solids in rainwater, frequent accidents occur frequently. Therefore, conventionally, to prevent this, the construction height was excessively increased by design standards. However, in the conventional structure described above, the flow rate is controlled by the height of the weir and the cross-sectional area of the connection pipe, so that even if the rainfall continues and the concentration of sewage is low, the flow rate of the planned sewage (typically three times the maximum maximum amount of time) is filled. In the case of rainwater storms installed upstream, the rainwater is collected at least 10 times the maximum amount of sewage during rainfall, and thus, the sewage flowing into rainwater stormwater installed downstream of the sewage flows in excess amount.

In addition, the stormwater installed in the exclusion site is a source of wastewater due to the increase of the work load of the inflow pumping station in the sewage treatment plant due to the inflow of river water to the dwelling house during flooding, and the difficulty of operating the sewage treatment plant due to the deterioration of the quality of the inflow of the sewage treatment plant.

In addition, due to excessive wear height and river water backflow, the domestic sewer pipeline system is over-planned in the upstream pipeline, so there is no contradiction in the downstream pipeline where all sewage and rainfall runoff are discharged to the river. Is generated.

In addition, the combined sewer is usually designed based on rainy weather, so it is difficult to secure the flow rate in Cheongcheon-si, and therefore, solids are always precipitated in rainwater. In particular, in the case of rainwater tossil that the cross section is wider than the trunk line, such solid precipitation is more serious and the wear height is relatively lower due to the solid precipitation, so there is a problem that frequent accidents overflow.

In addition, in the case of the conventional sewage collection system, the amount introduced into the collection pipe through the orifice of the connection pipe in the storm drain is proportional to the cross-sectional area and the water level of the orifice. In other words, when high concentration sewage occurs at the beginning of the rainfall, a small amount is collected, and when the rainfall continues, the water level rises, and a large amount is collected when the pollution concentration is lowered.

Therefore, the present inventors install a sensor that can detect the concentration even if the height of the ware and the connecting pipe diameter are increased in order to prevent an overflow accident, so that the amount of the sewage flowing into the collecting pipe according to the inflow of the sewage and the degree of contamination is appropriate. By controlling, we attempted to develop storm sediment and storm sediment control systems for minimizing overflow accidents of high concentration sewage or pollutant loads over rivers.

In the development process, it was found that it is necessary to solve the following technical problems in order to obtain a system that does not interfere with the practical use.

First, it is necessary to control the amount of sewage in accordance with the concentration of sewage along with the inflow of sewage to collect as much sewage as possible in the early stages of rainfall and to collect a little sewage in the latter part of the rainfall.

Second, if the river level rises and the river water flows into stormwater, the orifice of the connecting pipe should be closed to prevent the river water inflow.

Third, it is necessary to improve the structure of the orifice of the connector to prevent the orifice from being blocked.

Fourth, solid matters such as soil and sand should be prevented from being deposited in storm soil.

Fifth, it is necessary to control the amount of sewage collection of each stormwater disposed along the drainage pipe in real time to accommodate the pollutant load generated by the limited drainage pipe capacity. Therefore, an operating system is needed to centrally operate each stormwater with different quantity and water quality according to the difference in delivery time.

Therefore, the present invention is devised to meet the above requirements, firstly, the present invention is to control the orifice opening of the connection pipe according to the inflow of the sewage and the degree of contamination, to maximize the pollutant load load and the pollution overflowed into the river The objective is to provide a stormwater control system that minimizes load.

Second, another object of the present invention is to provide an excellent soil control system capable of preventing the backflow of river water.

Third, another object of the present invention is to provide an excellent soil control system capable of preventing the orifice of the connection pipe from being blocked by foreign substances included in the sewage.

Fourth, the purpose of the present invention is to provide a stormwater control system that prevents overflow accidents due to solid deposits by allowing the soil to flow into the stormwater through the orifice.

Fifth, the present invention has another object to provide a storm control system that can be adjusted according to the amount of sewage and pollution of each storm rain by individually controlling a plurality of rainwater toil installed along the drain pipe.

1 is a schematic drawing showing a general sewage system;

Figure 2 is a schematic configuration diagram showing a stormwater control system according to the present invention,

Figure 3 is a schematic cross-sectional view showing the storm soil according to the present invention,

4 is a flowchart of the stormwater control system according to the present invention;

5 is a drawing comparing the storm drain control system according to the present invention and the conventional storm drain system.

The present invention, the detection unit for detecting the amount of contamination and the degree of contamination introduced into the stormwater to achieve the above object, and calculating the signal of the detection unit to control the orifice opening and closing degree of the stormwater chamber pipe The controller is installed in the connecting pipe and includes an opening and closing portion for opening and closing the orifice of the connecting pipe according to the output signal of the controller.

The sensing unit may be a water level sensor for detecting the amount of sewage, an electrical conductivity or a suspended solids (SS) measuring sensor for detecting the degree of contamination, but is not limited thereto.

In addition, the controller has a built-in logic program for calculating the opening and closing amount of the connector by using the amount of sewage and the degree of contamination.

The opening and closing portion includes a water gate installed on the orifice passage of the connecting pipe, and a driving means for raising and lowering the water gate to open and close the orifice.

The driving means may be a driving cylinder or a motor operated by air or hydraulic pressure, and is provided with a movement switching mechanism such as a transfer screw for converting the rotational movement of the motor into the lifting and lowering movement of the gate when the motor is used.

Therefore, it is possible to completely prevent the pollution of the river caused by the overflow of the high concentration sewage until the pollution level of the sewage is sufficiently low after the start of the rainfall, it is possible to block the backflow of the river water.

In addition, the present invention is characterized in that the direction of the screen is installed in the connection pipe of the rainwater chamber to the river direction.

In particular, in the case of the screen installed in the transverse ocean storm, the contaminants are not easily removed. Therefore, the screen must be installed in the direction of the river, and the size of the orifice is made as large as possible.

In addition, the present invention is characterized in that the invert is installed inside the rainwater chamber.

In addition, the present invention in the tea pipe line is installed from a plurality of storm water from the upstream, to control the amount of pollution according to the degree of pollution of the sewage flow into each rainwater chamber for the limited capacity of the collection pipe so as to accommodate the pollution load to the maximum do.

To this end, the present invention is installed in each rainwater chamber connecting the sewage pipe and the collecting pipe passage, the detection unit for detecting the amount of sewage and pollution degree flowing into the stormwater chamber is installed, the connection pipe of each rainwater chamber is orifice opening and closing amount of the connector The opening and closing portion for adjusting the control unit is provided, the controller receiving the signal of each sensing unit is configured to control and operate the opening and closing portions according to the amount of filthy water in each rainwater chamber and the degree of contamination.

Therefore, by collecting more sewage from the sewage chamber where the high concentration sewage is generated, it is possible to make the most of the capacity of the collecting pipe at the side of the pollutant loading.

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

1 is a schematic diagram showing a general sewage system, Figure 2 is a schematic configuration diagram showing a stormwater control system according to the present invention, Figure 3 is a schematic cross-sectional view showing the stormwater chamber according to the present invention. .

According to the above drawings, the control system of the present invention is installed on one side of the rainwater toil chamber 20 to detect the contamination level of the water level sensor 50 and the sewage to detect the amount of sewage flowing into the rainwater soil chamber 20 Opening and closing of the orifice of the connection pipe 21 of the stormwater chamber 20 according to the detection unit including the electrical conductivity or SS sensor 51 and the amount of the sewage in the stormwater chamber 20 and the degree of contamination A controller 60 for controlling the degree, a water gate 70 installed in the connecting pipe 21 to open or close the orifice, and a driving motor to raise and lower the water gate 70 according to the output signal of the controller 60. And an opening and closing portion for adjusting the opening and closing amount of the orifice, including (71).

Accordingly, the values of the respective measuring sensors 50 and 51 are applied to the controller 60, and the controller 60 calculates the values according to the built-in logic program and outputs a control signal to the driving motor 71 of the opening and closing part. 70) by controlling operation, it is possible to collect the required amount of sewage by the collecting pipe.

The controller 60 includes a key pad so that a reference value can be input to a logic program. Therefore, the operator can arbitrarily adjust the opening and closing degree of the water gate 70 by changing the set value using the keypad.

The logic program set in the controller 60 is as shown in FIG. 4.

First, the water level set value and the water quality set value are embedded in the controller 60. (S100)

Below this water level value, the orifice which is the inlet of the connection pipe 21 is 100% open, and can collect as much sewage as possible. (S110, S130)

When the water level rises to be above the set value, the value of the water quality measuring sensor (electric conductivity or SS) is determined.

At this time, if a high concentration of sewage above the water quality setting occurs, the orifice is still open at 100% to collect as much sewage as possible.

However, when the low concentration sewage is generated because the water quality is lower than the set value, the water gate 70 is operated to reduce the amount of sewage collection by reducing the opening degree of the orifice (S150).

Here, an inverter is installed at the bottom of the stormwater chamber 20, and the invert 80 has a channel 81 corresponding to the lower half circle of the sewer pipe and the connection pipe 21 connected to the stormwater chamber 20. The formed block is installed on the bottom of the stormwater chamber 20 to flexibly connect the sewer pipe and the connection pipe 21. Therefore, the solid matter such as the earth and sand can flow smoothly to the connecting pipe 21 along the waterway.

Preferably, the upper end of the block is inclined at an angle toward the water channel so that the inflow of the solid water is made more smoothly.

In addition, the electric conductivity sensor or the SS measuring sensor 51, which is the measuring equipment, is provided with a separate washing device that can periodically clean the sensing unit by spraying air or washing water, so that the reliability of the measured value due to contamination of the sensing unit when using for a long time It is preferable to prevent a fall.

And the wear 22 installed in the rainwater chamber 20 can be installed high enough because the flow rate can be adjusted by adjusting the water gate (70). However, if the height of the wear 22 is excessively increased, this may affect the inundation of the upstream superior rain chamber 20.

The operation of the present system of the above structure will be described with reference to FIG.

As shown in FIG. 5, all of the conventional rainwater toils controlled by the water level are operated in an irrational collection method that collects a large amount of sewage when the initial rainfall is low and collects a large amount when the sewage concentration is low due to a high water level. It is becoming. In other words, sewage is collected irrespective of the pollutant load, which seriously adversely affects the quality of the river, and does not make the most of the limited drainage channel capacity. On the other hand, the improved system of collecting system considers both the flow rate and the water quality, so that the sewage of high concentration at the beginning of rainfall is sufficiently collected to prevent the overflow of sewage at high concentration, and when the concentration of sewage is reduced below a certain value, By reducing or closing the water gate (70) to increase the amount of overflow into the stream to prevent excessive inflow of sewage into the sewage treatment plant it is possible to reduce the difficulty of operating the sewage treatment plant due to the reduction of plant power costs and the inflow water quality.

That is, the controller 60 receives the signals from the sensors 50 and 51 and applies the output signal to the driving motor 71 according to the quantity of filthy water and the degree of contamination, and the driving motor 71 is the controller 60. In accordance with the signal of the gate 70 will be opened and closed.

The operation of the water gate 70 starts when the water level rises due to the rainfall to be above the set value. When the water level is above the water level, the water gate 70 is controlled by the electric conductivity value or the SS value.

In addition, in this system, the sluice 70 normally maximizes the orifice cross-sectional area (100% opening) to maximize the ease of maintenance, and periodically opens and closes the sluice 70 to increase the flow rate and the sluice 70. By breaking the objects blocking the floodgate 70 by the physical force of the usual to prevent the overflow accident.

On the other hand, according to another embodiment of the present invention can be centrally integrated management of each rainwater tortilla (20) connected to the conduit line, for this purpose, each rainwater tosoil (20) connected to the conduit line in 20 is provided with a water level sensor 50 for measuring the amount of sewage flowing into and a sensing unit including an electrical conductivity or SS sensor 51 for detecting the degree of contamination, the connection pipe 21 of each rainwater chamber 20 ) Is provided with an opening and closing portion including a water gate 70 for opening and closing the orifice of the connection pipe 21 and a drive motor 71 for raising and lowering the water gate 70, the controller 60 receiving the signal of each sensing unit. ) Controls each opening and closing part according to the amount of filthy water and the degree of contamination in each stormwater chamber 20 to minimize the degree of contamination overflowing to the river in consideration of the total capacity of the collecting pipe and to maximize the amount of polluting load collected. Tea collection amount of each storm soil 20 It is designed to control.

Therefore, by real-time integrated operation of each rainwater toil (20) showing different amounts and water quality according to the difference in delivery time by adjusting the water gate (70) of each rainwater toil (20) real-time control system that can make the most of the capacity of the tea house Can be derived. That is, by collecting a lot of sewage of rainwater tosoil (20) where high concentration sewage is generated based on the result of measuring the quantity and the water quality in each rainwater toil (20) system to maximize the capacity of the conduit pipe on the side of pollution load collection You will get Such a system can improve the problem that all the sewage generated during rainfall in the downstream stormwater chamber 20 is overflowed and minimize the pollutants discharged to the river in terms of pollution load.

Here, the water gate 70 operated by receiving the signal from the controller 60 may apply an inverter control method so that the opening degree may be adjusted according to the situation of each stormwater chamber 20. In addition, as mentioned above, it is possible to prevent the connection pipe 21 from being blocked by foreign matter with the periodic opening of the water gate 70 completely.

As described above, according to the stormwater and stormwater control system according to the present invention, the following effects are obtained.

First, the flow rate can be adjusted by the water gate, so that the orifice diameter and wear height can be increased, which can prevent overdraft accidents. Can be improved.

Second, since the system can prevent the inflow of river water by blocking the water gate 70 completely when the river water flows back, the sewage that does not need to be transferred to the treatment plant flows due to the river water backflow, resulting in waste of power costs and inflow water quality for sewage treatment. It is possible to reduce the difficulty of operating the plant.

Third, by controlling the amount of collection in consideration of the flow rate and water quality of the sewage flowing into the rainwater chamber, it is possible to collect the maximum pollutant load at the limited capacity of the conduit to maximize the efficiency of the conduit.

Fourth, each storm drain in front of the drainage pipe has different delivery time and shows various outflow (outflow and pollutant load) according to the basin and rainfall characteristics. It can be utilized in the operation of the whole watershed system considering the system, and the efficiency of the existing facilities can be maximized, which can drastically reduce the cost of additional facilities.

Claims (2)

A water level sensor for detecting the amount of sewage, an electric conductivity or SS sensor for detecting the degree of contamination, and a detection unit for detecting the amount of the sewage and the degree of contamination introduced into the stormwater; A controller for controlling the opening and closing degree of the orifice of the connection pipe connecting the rainwater tosoil and the collecting pipe path by calculating the signal of the detection unit; An opening and closing portion for opening and closing the orifice of the connector according to an output signal of the controller, including a water gate installed on an orifice passage of the connection pipe and a driving means for raising and lowering the water gate to open or close the orifice. Excellent tosyl control system comprising a. Each rainwater chamber connected to the collecting pipe line is equipped with a water level sensor for measuring the amount of sewage flowing into the rainwater chamber, and a sensing unit including an electrical conductivity or SS sensor for detecting the degree of contamination. The connecting pipe connecting each rainwater chamber and the collecting pipe passage is provided with an opening and closing portion including a water gate for opening and closing the orifice of the connecting pipe, The controller receiving the signal of each sensing unit controls the opening and closing unit according to the amount of sewage in each rainwater chamber and the degree of contamination to control the rainwater chamber control system to adjust the amount of the rainwater chamber to the total capacity of the collecting pipe.