KR102086125B1 - System for managing water and sewage of chemical injection and method therefor - Google Patents

Abstract

The present invention relates to a system for managing water supply and sewage chemical injection, which comprises: a measurement unit for measuring a raw water inflow amount and a raw water turbidity value of one water supply and sewage facility among a water storage tank, a water purification plant, a water intake plant and a sewage treatment plant; a calculation unit for calculating a chemical injection amount in proportion to turbidity compared to the measured inflow amount; and a control unit for injecting a chemical corresponding to the calculated chemical injection amount to a supply path, and controlling opening and closing of a chemical injection valve or an emergency breaker valve to prevent the chemical from being injected into the supply path when the chemical injection amount exceeds a preset reference. The calculation unit includes: a receiving module provided in a server located at a remote place to receive the raw water inflow amount and the raw water turbidity value from the measurement unit; a database for storing and managing chemical injection amount information corresponding the raw water turbidity value compared to the raw water inflow amount; and an index module for indexing the chemical injection amount from the database to transmit the same to the control unit. According to the present invention, the chemical injection amount is controlled in real time in accordance with a flow rate, a water quality measurement value, and a turbidity measurement value of a water supply and sewage facility to collect and settle a floating material contained in water to supply water purified with the floating material to a household or a building, rather than diluting the floating material through simple flow rate control.

Description

System for managing water and sewage of chemical injection and method therefor}

The present invention relates to a water and sewage chemical input management system, and more specifically, a technology for controlling the amount of chemical input in real time according to the flow rate, water quality and turbidity measurement values in the reservoir without the presence of personnel who manage the chemical input equipment of water and sewage facilities It is about.

In general, the country operates water and sewage facilities to supply water to homes and buildings. The water and sewage facility is configured to collect water in a predetermined reservoir, and then put a predetermined chemical into the water stored in the reservoir to perform water purification, and then supply it to a home or a building.

In such water and sewage facilities, the chemical treatment process for water purification is one of the important parts because it is a problem directly related to human health. Therefore, there is a need to accurately perform the chemical treatment process for water purification.

In particular, as water quality management becomes difficult due to the diversification of living culture, rapid expansion of cities, and climate change, it is required to advance the water treatment technology, and thus the importance of chemical input facilities of water and sewage facilities is increasing.

In general, water and sewage facilities are often equipped with a water and sewage control system to control the treatment of chemicals in the water stored in the reservoir.

Such a conventional chemical input facility of water and sewage facilities is often configured to directly determine the chemical input amount by the manager to check the water quality change of the water generated as the water flows into the reservoir of the intake in real time.

Therefore, when the manager neglects the management, there is a problem in that the water quality of the water directly connected to the health of the human being falls because the medicine is not accurately performed in the reservoir.

In order to improve such a problem, a technique of automatically controlling a chemical input facility of a water and sewage facility and inputting a chemical corresponding to a set value has been applied. However, the present invention is merely inputting a chemical corresponding to a specified value.

In addition, in the water treatment process of the water supply and sewage facilities, the suspended substances remain, but only to dilute the suspended solids through the flow control, there is a problem that the water is not purified water is supplied to the home or building.

Therefore, the present applicant intends to propose a control system for controlling the chemical input to the reservoir by determining the appropriate chemical input amount according to the water quality of the water that changes from time to time in the reservoir without the personnel who manage the chemical input equipment of the water supply and sewage facility. .

In addition, the present applicant proposes a system for supplying the purified water to the home or building by collecting and submerging the suspended solids contained in the water by controlling the chemical input amount in real time according to the turbidity value measured through the turbidity measurement in the reservoir. I would like to.

Republic of Korea Patent Publication No. 10-2013-0049666 (published May 14, 2013)

An object of the present invention is to control the chemical input amount in real time according to the flow rate and water quality measurement value of the water supply and sewage facility, to supply the purified water automatically to the home or building according to the flow rate and the water quality without the maintenance personnel.

The object of the present invention is to control the amount of chemical input in real time according to the turbidity measurement value of the water and sewage facility, so that the suspended solids are collected and submerged by sinking the suspended solids contained in the water through simple flow control. To supply to homes or buildings.

One embodiment of the present invention for achieving the technical problem is a water and sewage chemical input management system, measuring unit for measuring the raw water inflow and raw water turbidity value of any one of the water supply and sewage facilities of the reservoir, water purification plant, intake or sewage treatment plant; A calculating unit calculating a medicine input amount in proportion to the measured turbidity compared to the measured inflow rate; And a control unit which inputs a chemical corresponding to the calculated chemical input amount into the supply channel, and controls the closing of the chemical input valve or the emergency breaker valve when the chemical input amount exceeds the predetermined standard, thereby preventing the chemical from being introduced into the supply channel. It includes, but the calculation unit, receiving module for receiving the raw water inflow amount and raw water turbidity value is provided in the server located in the remote; A database for storing and managing raw turbidity value and corresponding chemical input information on raw water inflow; And an index module for indexing a drug input amount from a database and transmitting it to the controller.

Preferably, the control unit receives a chemical input amount that is variable in accordance with the change in the raw turbidity value of the raw water inflow from the operation unit in real time, and the chemical input valve connected to the chemical reservoir so that the chemical input corresponding to the received chemical input amount into the supply flow path It is characterized by controlling the closing.

The control unit measures the amount of chemicals introduced into the supply flow path according to the valve closing, and when the measured chemicals exceed a predetermined standard, the controller switches the valve connected to the chemical reservoir to the locked state and locks the emergency breaker valve. It characterized in that the conversion to.

The control unit measures the opening degree of the chemical injection valve so as to be opened and closed in accordance with the dosage of the chemical, but if the opening of the chemical injection valve exceeds a predetermined standard, the chemical injection valve is switched to the locked state, and the emergency breaker valve is locked. It characterized in that the conversion to.

Water and sewage medicine input management method based on the above system, the measuring unit (a) measuring the raw water inflow and raw water turbidity value of the water and sewage facility; (B) calculating a medicine input amount in proportion to the turbidity compared to the measured inflow rate by the calculation unit; (C) the control unit injecting the medicine corresponding to the medicine input amount into the supply flow path; (D) the control unit 106 determining whether or not the amount of chemical input exceeds a predetermined standard; And (d) if the chemical input amount exceeds the predetermined standard, the control unit controls the closing of the chemical injection valve or the emergency breaker valve to block the chemical from being introduced into the supply passage. Characterized in that.

In the step (b), the receiving module of the calculating unit receives raw water inflow amount and raw water turbidity value from the measuring unit (b-1); And (b-2) characterized in that the indexing module of the calculation unit indexes the raw water turbidity value and the chemical input amount corresponding to the raw water inflow from the database and transmits it to the control unit.

According to the present invention as described above, by controlling the chemical input amount in real time according to the flow rate and water quality measurement value of the water and sewage facility, it is possible to supply the purified water automatically to the home or building according to the flow rate and water quality without the maintenance personnel. .

According to the present invention, by controlling the chemical input amount in real time according to the turbidity measurement value of the water and sewage facility, it is assumed that the water is purified to collect the suspended matter contained in the water, instead of diluting the suspended matter through simple flow control. Or can be supplied to buildings.

1 is a block diagram showing a water and sewage medicine input management system according to an embodiment of the present invention.
Figure 2 is an exemplary view showing the structure of the sewage medicine input management system according to an embodiment of the present invention.
Figure 3 is a block diagram showing the detailed configuration of the sewage medicine input management system according to an embodiment of the present invention.
Figure 4 is a flow chart illustrating a water and sewage medicine input management method according to an embodiment of the present invention.
Figure 5 is a flow chart showing the detailed process of step S100 of the water and sewage medicine input management method according to an embodiment of the present invention.
Figure 6 is a flow chart showing the detailed process of step S200 of the water and sewage medicine input management method according to an embodiment of the present invention.

Specific features and advantages of the present invention will become more apparent from the following detailed description based on the accompanying drawings. Prior to this, terms or words used in the present specification and claims are defined in the technical spirit of the present invention on the basis of the principle that the inventor can appropriately define the concept of the term in order to explain the invention in the best way. It should be interpreted to mean meanings and concepts. In addition, when it is determined that the detailed description of the known function and the configuration related to the present invention may unnecessarily obscure the subject matter of the present invention, it should be noted that the detailed description is omitted.

Referring to Figure 1 water and sewage chemical input management system 100 according to an embodiment of the present invention, the measuring unit 102 for measuring the raw water inflow and raw water turbidity value of the water and sewage facility, the drug in proportion to the turbidity compared to the measured inflow The operation unit 104 for calculating the input amount and the chemicals corresponding to the calculated chemical input amount are introduced into the supply flow path, and when the chemical input amount exceeds the preset standard, the chemicals are controlled by controlling the closing of the chemical input valve or the emergency breaker valve. It comprises a control unit 106 for blocking the introduction into the supply flow path.

Hereinafter, a detailed description thereof will be omitted, but the water and sewage system referred to as the water and sewage medicine input management system 100 according to an embodiment of the present invention is preferably understood as a water purification facility including a sewage treatment plant and a livestock wastewater treatment plant.

Specifically, 1) the water purification process of sewage treatment plant consists of a) dehydration sludge chemical input, b) total phosphorus treatment plant input, and 2) biological reactor chemical input procedure, and 2) livestock wastewater treatment plant purification process. Flotation separation treatment tank chemical input, b) chemical reaction vessel equipment, and c) AOF, BBF chemical input procedure, but one embodiment of the present invention is not limited thereto.

2 is an exemplary view showing the structure of the sewage medicine input management system 100 according to an embodiment of the present invention, Figure 3 is a detailed configuration of the sewage medicine input management system 100 according to an embodiment of the present invention Is a block diagram showing the following.

2 and 3, the measuring unit 102 is provided in any one of the water and sewage facilities of the reservoir, water purification plant, intake or sewage treatment plant, the flow meter 102a for measuring the inflow of raw water flowing into the water and sewage facility, and inflow It is comprised including the turbidity meter 102b which measures the turbidity of the raw water.

At this time, the measuring unit 102 is configured to include a communication module 102c for transmitting the raw water inflow and raw water turbidity value measured by the flow meter (102a) and turbidity meter (102b), the calculating unit 104, The communication module 102c connected with the cable supports wired communication through a cable or wireless communication through 3G, 4G, 5G, or Wi-Fi.

Meanwhile, the calculating unit 104 receives the raw water inflow amount and the raw water turbidity value from the measuring unit 102, and indexes and transmits the chemical input amount corresponding to the raw water turbidity value from the database to the control unit 106.

In addition, the operation unit 104 may transmit the chemical input amount received from the manager to the controller 106 in addition to the raw water turbidity value and the chemical input amount corresponding to the raw water inflow amount indexed from the database.

In this case, the injected chemicals are PAC (Poly Aluminum Chloride-Al (OH) xCly, inorganic polymer coagulant), Alum (Aluminum Sulfate-Al2SO4), ferric chloride (Ferric Chioride, Fecl3), synthetic polymer coagulant-polymer (dehydration) ) Or sodium hypochlorite (for sedimentation cleaning), but the present invention is not limited thereto, and it is possible to change the medicine to be injected by the administrator.

This, the calculation unit 104 is provided in a server located in a remote location receiving unit 104a for receiving the raw water inflow and raw water turbidity value from the measuring unit 102, and stores the raw water turbidity value and the raw water turbidity value corresponding to the chemical input information And an indexing module 104c for indexing and administering the medicine input amount from the database 104b to the control unit 106.

On the other hand, the control unit 106 receives the chemical input amount that is variable in accordance with the change in the raw turbidity value of the raw water inflow from the calculating unit 104 in real time, and the chemicals such that the chemical input corresponding to the received chemical input amount is introduced into the supply flow path (10) Controls the closing of the chemical injection valve 30 connected to the reservoir (20).

At this time, the chemical injection valve 30 is closed under the PID control of the actuator (actuator) driving method, the PID operation result response within 200ms, the inner surface in contact with the supply flow path 10 has a 'V' shaped curve Precise chemical injection is possible.

In addition, the control unit 106 measures the amount of chemicals introduced into the supply flow path 10 according to the closing of the valve 30, but if the measured amount of the chemicals exceeds a predetermined standard, the valve connected to the chemical reservoir 20 ( 30) is switched to the locked state, and the emergency shutoff valve 40 is switched to the locked state to prevent the chemicals exceeding the standard to be purified water is supplied to the home or building through the supply passage (10).

In addition, the control unit 106 measures the opening degree of the chemical injection valve 30 to be opened and closed in accordance with the chemical input amount, when the opening of the chemical injection valve 30 exceeds a predetermined standard, the chemical injection valve 30 It is switched to the locked state, the emergency breaker valve 40 is switched to the locked state to prevent the chemicals exceeding the standard input water is supplied to the home or building through the supply passage (10).

At this time, when the emergency shutoff valve 40 is switched to the locked state under the control of the control unit 106, the chemicals exceeding the standard is introduced into the purified water is bypassed by the bypass flow path 50 is recovered to the water and sewage facility.

In addition, the control unit 106 may receive the raw water inflow amount and the raw water turbidity value from the operation unit 104, and may control the closing of the valve 30 so that the raw water inflow amount increases in proportion to the raw water turbidity value.

Water and sewage chemical input management equipment as described above, the pulsation occurs as the chemical is introduced in the conventional diaphragm method, the chemical supply was not constant, the structure of the slider-> needle bearing-> constant velocity cam interlocking system in the dia-frame method For this reason, since the diaphragm slider moves forward and backward, the frame has a problem in that durability is inferior.

In addition, since the conventional motor capacity is at least AC220V, AC380V, 0.55KW or more, the power consumption is large, it is difficult to precisely control the flow rate by the inverter control method when remote control, and the facility space and maintenance cost are large. .

On the other hand, according to an embodiment of the present invention, precise chemical injection is possible by the PID control of the actuator driving method, and the installation additional equipment can be reduced to reduce the installation space, installation cost and maintenance cost.

As described above, according to an embodiment of the present invention, by controlling the chemical input amount in real time according to the flow rate, water quality measurement value and turbidity measurement value of the water and sewage facility, the float is not diluted by simple flow control, The contained floats can be captured and submerged to provide purified water to the home or building.

Hereinafter, the water and sewage medicine input management method according to an embodiment of the present invention with reference to Figure 4 as follows.

First, the measuring unit 102 measures the raw water inflow and raw water turbidity value of the water and sewage facility (S100).

Subsequently, the calculation unit 104 calculates a chemical input amount in proportion to the measured inflow turbidity (S200).

Subsequently, the control unit 106 injects the medicine corresponding to the medicine input amount into the supply flow path (S300).

Subsequently, the controller 106 determines whether the medicine input amount exceeds a predetermined standard (S400).

 As a result of the determination in step S400, when the amount of chemical input exceeds a predetermined standard, the controller 106 controls the closing of the chemical input valve or the emergency breaker valve to block the chemical into the supply flow path (S500).

Hereinafter, referring to FIG. 5, a detailed process of step S100 of the water and sewage medicine input management method according to an embodiment of the present invention is as follows.

First, the flow meter of the measuring unit 102 measures the inflow of raw water flowing into the water and sewage facility (S102).

Next, the turbidimeter of the measuring part 102 measures the turbidity of the raw water which flows into a water and sewage facility (S104).

Then, the raw water inflow amount and the raw water turbidity value measured by the communication module of the measuring unit 102 are transmitted to the calculating unit 104 (S106).

Hereinafter, referring to FIG. 6, a detailed process of step S200 of the water and sewage medicine input management method according to an embodiment of the present invention is as follows.

After step S100, the receiving module of the calculating unit 104 receives the raw water inflow amount and the raw water turbidity value from the measuring unit 102 (S202).

Then, the index module of the calculating unit 104 indexes and transmits the chemical input amount corresponding to the raw water turbidity value to the raw water inflow amount from the database and transmits it to the control unit 106 (S204).

As described above and described with reference to a preferred embodiment for illustrating the technical idea of the present invention, the present invention is not limited to the configuration and operation as shown and described as such, it is a deviation from the scope of the technical idea It will be understood by those skilled in the art that many changes and modifications can be made to the invention without departing from the scope of the invention. Accordingly, all such suitable changes, modifications, and equivalents should be considered to be within the scope of the present invention.

100: water and sewage chemical input management system
102: measuring unit
102a: flow meter
102b: Turbidimeter
102c: communication module
104: calculation unit
104a: receiving module
104b: database
104c: index module
106: control unit
10: Supply Euro
20: Drug Store
30: chemical injection valve
40: emergency breaker valve
50: Bypass Euro

Claims (6)

A measuring unit for measuring the amount of raw water inflow and raw water turbidity of any one of the water and sewage facilities of the reservoir, water treatment plant, intake plant or sewage treatment plant;
A calculating unit calculating a medicine input amount in proportion to the measured turbidity compared to the measured inflow rate; And
Control the chemicals and the corresponding chemicals into the supply flow path, and if the chemicals input exceeds the preset standard, the controller controls the closing of the chemical injection valve or emergency breaker valve to block the chemicals from entering the supply flow. Including,
The calculation unit,
A receiving module provided in a server located at a remote location to receive raw water inflow amount and raw water turbidity value from the measurement unit; A database for storing and managing raw turbidity value and corresponding chemical input information on raw water inflow; And an indexing module for indexing a medicine input amount from the database and transmitting it to the controller.
The measuring unit,
Flow meter for measuring the inflow of raw water flowing into the water supply and sewage facility; Turbidity meter for measuring the turbidity of the incoming raw water; And a communication module for transmitting the raw water inflow amount and the raw water turbidity value measured by the flow meter and the turbidity meter to the operation unit.
The control unit,
The opening degree of the chemical injection valve is measured so as to be opened and closed in accordance with the chemical input amount, but when the opening of the chemical injection valve exceeds a predetermined standard, the chemical injection valve is switched to the locked state, and the emergency breaker valve is locked. When the emergency shutoff valve is switched to the locked state, the chemicals exceeding the standard are introduced to bypass the purified water to the bypass flow passage to control the recovery to the water and sewage facility.
The chemical injection valve,
Water and sewage chemical input management system, characterized in that the actuator is operated in response to the PID operation resulted in the PID control of the drive method, the inner surface in contact with the supply passage is composed of a 'V' shaped curve. The method of claim 1,
The control unit,
Receiving a chemical input amount that is changed in accordance with the change in raw turbidity value from the raw water inflow from the operation unit in real time, and controlling the closing of the chemical input valve connected to the chemical reservoir so that the chemical input corresponding to the received chemical input amount into the supply flow path Water and sewage medicine input management system characterized by. The method of claim 1,
The control unit,
When the amount of chemicals injected into the supply channel is measured according to the valve closing, the measured chemicals exceed the preset criteria.
Water and sewage chemical input management system, characterized in that for switching the valve connected to the chemical reservoir to the locked state, the emergency circuit breaker valve to the locked state. delete delete delete

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