TW202304822A - Cloud-based wastewater quality monitoring and automated chemical-adding system including a body, a pump, and a control box that comprises a sensing terminal main control board, a sensing circuit board, and a pH sensor that are connected with each other - Google Patents

Abstract

A cloud-based wastewater quality monitoring and automated chemical-adding system includes: a body, a control box, and a pump. The body has a bracket provided for the installation of the control box. There are two chemical liquid barrels on the bracket, and a neutralization tank is provided below the bracket. A pH controller is installed on the control box. The pH controller is connected with a control terminal main control board through a precision amplifying circuit module, so that the pH controller can be connected with a cloud database through the control terminal main control board via the Internet. In addition, a sensing terminal main control board, a sensing circuit board, and a pH sensor that are connected with each other are also provided in the control box.

Description

Cloud wastewater quality monitoring and automatic dosing system

The present invention relates to a "cloud wastewater quality monitoring and automatic dosing system", especially a set of intelligent wastewater management, automatic monitoring and dosing system established in the Internet of Things by means of WiFi wireless communication.

The management of factory wastewater has become a key issue today. Water quality monitoring refers to the regular or irregular detection of chemical substances, suspended solids, and ecosystems in water, monitoring and determination of the types, concentrations, and changing trends of pollutants in water bodies, and evaluation of water quality. The main monitoring items can be divided into two categories: the first is the comprehensive indicators reflecting the water quality, such as temperature, chromaticity, turbidity, pH value, conductivity, suspended solids, dissolved oxygen, chemical oxygen demand and biological oxygen demand, etc.; Followed by some toxic substances, such as phenol, cyanide, arsenic, lead, chromium, cadmium, mercury and organic pesticides. The pH value is also a very important component in many control factors in the wastewater treatment process, such as: the oxidation reaction of cyanide, the reduction reaction of hexavalent chromium metal ions and neutralization treatment, etc., must control the pH value within a certain range Inside. If the pH value control is unstable, it will lead to excessive dosing (increase in dosing cost) or insufficient dosing (resulting in non-compliance with environmental protection regulations).

Traditional pH control methods mostly rely on a single acid-base controller with a pH sensing electrode to detect the pH of the water, and then control the dosing machine to adjust the pH. This method has the following disadvantages: (1) The accuracy of the pH value depends on the accurate cooperation between the pH sensing electrode and the acid-base controller. A special coaxial cable must be used between the electrode and the acid-base controller, which is often caused by the aging or damage of the cable itself. while the impact is positive (2) The special coaxial cable between the pH sensing electrode and the acid-base controller is often close to the cable with a large current passing through it, and the magnetic field generated by the cable with a large current passing through it will interfere with the pH sensor. (3) The pH sensing electrode and the acid-base controller must be calibrated frequently on site, but based on the equipment installation and layout requirements of the wastewater treatment plant, the relationship between the pH sensing electrode and the acid-base controller is often troubled by time and space factors. For example, there are considerable distances or different floors, so manpower must be increased when the correction work is performed.

And due to the rapid development of wireless communication technology and the gradual maturity of the Internet of Things, smart phones and tablet computers can be connected to different sensors for remote monitoring through the network. For example, in wastewater treatment, operators or managers can know the pH value, temperature, conductivity, flow and other information of the discharged water in real time. In the tap water automatic distribution system, it can also decide whether to provide tap water to remote users normally according to the water quality in the pipeline obtained in real time, so as to ensure the quality of water supply and maintain the health of customers.

However, it is known that the real-time water quality monitoring system using the Internet of Things mostly only has the function of monitoring water quality and notifying management personnel, and lacks the function of immediate control of water pollution. Once the water quality is abnormal, the receiver can only rely on the signal receiver to go to the scene or notify the operator to eliminate the abnormality; this will often cause a certain degree of environmental pollution.

Since the monitoring and control of pH value is the main control factor of wastewater treatment, if the Internet of Things and cloud database can be used to develop a system for cloud monitoring pH value and automatic dosing to adjust pH value for this factor, it is a system. The problem that the inventor wants to improve lies.

Therefore the present inventor promptly is in view of this, is the notion of thinking and creation, then designs with many years of experience, discusses in many ways and try out sample test, and corrects and improves many times, is to push out the present invention.

The cloud wastewater quality monitoring and automatic dosing system of the present invention includes: a body, a control box and a pump, wherein the body has a bracket for providing the control box for installation, and the bracket There are two liquid medicine barrels on the top, and a neutralization tank on the bottom, and each of the two liquid medicine barrels is connected to an infusion tube. Dosing can be done above the neutralization tank, and a mixer is arranged on the neutralization tank, and an acid-base controller is installed on the control box, and the acid-base controller utilizes a precision amplifier circuit module A control terminal main control board is connected, so that the acid-base controller can be connected to a cloud database via the network through the control terminal main control board, and a connected sensing terminal is also provided in the control box Main control board, a sensing circuit board and a pH sensor, the pH sensor is placed vertically in the neutralization tank, so that the pH sensor can be used to measure the concentration of hydrogen ions in the tank solution, and The sensing circuit board is used to convert the microvoltage measured by the pH sensor into a signal that the main control board of the sensing end can receive, and convert it into a pH value, and then pass through the sensing end The main control board is uploaded to the cloud database through the network, so that the cloud database can store the pH of individual sampling time points, and then according to the sensing data, the cloud database returns the measured data to the cloud database through the network. The main control board of the control end, when the main control board of the control end receives the signal, it can use the precision amplifier circuit module to convert the data into a voltage value and then transmit it to the acid-base controller, so that the The acid-base controller can judge whether automatic dosing is needed according to the upper and lower limits of the pH value set in advance, so that the program can automatically adjust the pH value. The pump is used to collect and monitor the field Waste water, so that the waste water is pumped into the neutralization tank through the pump for detection; thereby, the cloud waste water can be formed Quality monitoring and automatic dosing system.

(1) The cloud-based wastewater quality monitoring and automatic dosing system of the present invention, in order to solve the industry's problems in adjusting the pH value of wastewater, the present invention uses Wifi wireless communication to transmit the data of the pH sensor to the device. The acid-base controller replaces the existing wires connecting the pH sensor and the acid-base controller. This design helps to improve the instability and interference problems caused by the use of wires, and also reduces the pH sensor. Manpower and time for calibrating the detector and acid-base controller.

(2) For the cloud-based wastewater quality monitoring and automatic dosing system of the present invention, for researchers and wastewater operators, the preservation and traceability of operational data is an important task, and traditional acid-base neutralization equipment lacks a set of data The database stores operational data so that relevant data can be quickly and accurately found when needed. At present, folks use a set of recorders to store data using paper or memory cards. More advanced is to add a set of synchronized cloud water quality monitoring equipment. , transmit the data to the cloud database through the 4GLTE communication method for retrospective use. Synchronously store data in the MySQL database in the cloud, so that researchers, wastewater operators or managers can browse real-time water quality data through the Internet at any time.

(3) With the cloud-based wastewater quality monitoring and automatic dosing system of the present invention, wastewater equipment operators and enterprise managers can use the built database to obtain correct operation and management information, such as assisting in internal process improvement or controller setting values Adjustments, etc., will increase the efficiency of water quality management, reduce environmental protection costs and reduce environmental risks for enterprises. Researchers can use this information to further understand the changes in the pH value of the enterprise's wastewater, thereby improving its wastewater equipment, and can be used as a new design The reference basis for the plan.

(4) In the cloud-based wastewater quality monitoring and automatic dosing system of the present invention, the wireless control dosing function can perform timely dosing adjustments for changes in water quality (pH value) and keep the water quality within the allowable range.

Part of the invention:

(10): Ontology

(11): Bracket

(12): Liquid Medicine Barrel

(121): infusion tube

(122): Dosing solenoid valve

(13): neutralization tank

(14): Blender

(20): control box

(21): acid-base controller

(22): Precision amplifier circuit module

(23): Main control board of control terminal

(24): Sensing side main control board

(25):Sensing circuit board

(26):pH sensor

(30):water pump

(40):Cloud database

(50):Wastewater

[Figure 1] is a perspective view of the present invention.

[Fig. 2] is a state diagram of the connection between the present invention and the cloud database through the network.

[Fig. 3] is a block flow chart of automatic dosing of the present invention.

[Fig. 4] is the three-dimensional state diagram when acid of the present invention is added.

[Fig. 5] is the three-dimensional state diagram when alkali is added in the present invention.

In order to enable your review committee members to have a further understanding and understanding of the purpose, characteristics and effects of the present invention, please cooperate with the [simplified description of the drawings] to describe in detail as follows:

Generally, according to the present invention, first please observe it as shown in Fig. 1 and Fig. 2, which includes: a body (10), a control box (20) and a pump (30), wherein the body (10 ) has a support (11) that is used to provide the control box (20) for installation, the support (11) is provided with two liquid medicine barrels (12), and a neutralization tank (13) is provided below, and the two The liquid medicine barrels (12) are respectively connected with an infusion tube (121), and the liquid medicine barrel (12) is elevated through the support (11), and the extension of the two infusion tubes (121) can be carried out in conjunction with the Dosing is done above the neutralization tank (13), and a stirrer (14) is arranged on the neutralization tank (13), and an acid-base controller (21) is installed on the control box (20). Acid-base controller (21) is to utilize a precision amplification The circuit module (22) is connected with a control terminal main control board (23), so that the acid-base controller (21) can communicate with a cloud database (40) through the control terminal main control board (23) via the network connection, and the control box (20) is also provided with a connected sensing terminal main control board (24), a sensing circuit board (25) and a pH sensor (26), the pH sensor The device (26) is placed vertically in the neutralization tank (13), so that the pH sensor (26) is used to measure the hydrogen ion concentration (pH value) in the tank solution, and the sensing circuit board ( 25) is used to convert the microvoltage measured by the pH sensor (26) into a signal that the sensing terminal main control board (24) can receive, and convert it into a pH value, and then pass through the sensor The measuring terminal main control board (24) is uploaded to the cloud database (40) via the network, so that the cloud database (40) can store the pH value (pH value) of individual sampling time points, and then according to the sensing data from the The cloud database (40) returns the measured data to the control terminal main control board (23) via the network, and when the control terminal main control board (23) receives the signal, it can use the precision amplification The circuit module (22) converts the data into a voltage value and then transmits it to the acid-base controller (21), so that the acid-base controller (21) can be adjusted according to the pH value set in advance, The lower limit is used to judge whether automatic dosing is required, so that the function of automatic pH adjustment can be carried out by this program. The pump (30) is used to collect the waste water (50) in the monitoring field, so that the waste water (50) can pass through The water pump (30) is pumped into the neutralization tank (13) for testing.

The present invention provides a cloud-based wastewater quality monitoring and automatic dosing system, wherein, the two infusion pipes (121) are provided with a dosing solenoid valve (122) controlled by the acid-base controller (21), using the The acid-base controller (21) controls the dosing solenoid valve (122) to open or close, so that the automatic dosing operation can be successfully completed.

The present invention provides a cloud-based wastewater quality monitoring and automatic dosing system, wherein, the two liquid medicine tanks (12) are respectively equipped with acid liquid and lye, so that the addition of the acid or lye can do the The acid-base neutralizer of the wastewater (50) mentioned above.

The present invention provides a cloud-based wastewater quality monitoring and automatic dosing system, wherein the acid-base controller (21) is a SUNTEX PC-310 acid-base controller, and the SUNTEX PC-310 acid-base controller can set the pH value as required Upper and lower limits, when the pH value exceeds the upper limit, the internal relay will be turned on, and the acid dosing solenoid valve (122) can be started at this moment, and when the pH value is lower than the lower limit, another group of internal relays will be turned on, at this time The lye dosing solenoid valve (122) can be started, so that the acid-base adjustment operation of the water quality can be carried out through the interaction between the acid-base controller (21) and the dosing solenoid valve (122), which can relatively reach the level of waste water. Acid-base neutralizer.

The present invention provides a cloud-based wastewater quality monitoring and automatic dosing system, wherein the main control board (23) at the control end and the main control board (24) at the sensing end are a NodeMCU development board (ESP8266 WiFi module), and the NodeMCU The development board is based on the WiFi SoC chip ESP8266 (ESP12), and integrates WiFi, GPIO, PWM, ADC, I2C, 1-Wire and other functions. Compared with other languages, the kernel is very small and the execution efficiency is high. Its built-in WiFi function is very suitable for the application development of the Internet of Things. The code can be written into ESP8266 with Arduino IDE. Users can choose which method to use according to their own needs. develop.

The invention provides a cloud-based wastewater quality monitoring and automatic dosing system, wherein the pH sensor (26) is a pH composite electrode sensor.

The present invention provides a cloud-based wastewater quality monitoring and automatic dosing system, wherein the sensing circuit board (25) is a pH sensing circuit board module supporting ARDUINO, which is used to use the pH sensor (26 ) The measured micro voltage is converted into a signal that the Arduino development board NodeMCU can receive and converted into a pH value.

The present invention provides a cloud-based waste water quality monitoring and automatic dosing system, wherein the precise amplifier circuit module (22) and the acid-base controller (21) are connected by a cable.

The present invention provides a cloud-based wastewater quality monitoring and automatic dosing system, wherein the pH sensor (26), the sensing circuit board (25) and the sensing terminal main control board (24) are all connected by a cable. Be a connector.

The invention provides a cloud-based wastewater quality monitoring and automatic dosing system, wherein the wastewater (50) is directly pumped into the neutralization tank (13) through the pump (30).

The present invention provides a cloud-based wastewater quality monitoring and automatic dosing system, wherein the wastewater (50) is first drained to a water tank, and then the wastewater (50) is pumped from the water tank through the water pump (30). The water tank is drawn into the neutralization tank (13).

Please continue to observe it as shown in Figure 3. During its actual operation, after the wastewater end passes through the pH sensor (26) to capture the real-time water quality from the neutralization tank (13), and then passes through the pH The sensing end main control board (24) uploads the data to the cloud database (40) via the network (Wifi), and the cloud database (40) stores the pH value (pH value) of individual sampling time points, and then, According to the sensing data, the cloud database (40) transmits data to the control terminal main control board (23), and the control terminal main control board (23) uses the precision amplifier circuit module after receiving the signal (22) Convert the data into a voltage value and send it to the acid-base controller (21), so that the acid-base controller (21) can control the dosing solenoid valve (122) according to the originally set upper and lower limits Open or close the action, and carry out the automatic dosing operation of acid-base adjustment according to this procedure (please observe it as shown in Figure 4 and Figure 5 at the same time), when the acid or lye is absorbed in the neutralization tank (13) After the agitator (14) stirs and fully dissolves, it will be released from the neutralization tank (13) to the monitored field, so as to mix with the wastewater in the monitored field, so as to effectively adjust the monitored field The wastewater quality of the domain.

The above-mentioned cloud-based wastewater quality monitoring and automatic dosing system has the following advantages: (1) In order to solve the industry's problems in the pH value adjustment of wastewater, the present invention is designed to use Wifi The wireless communication method transmits the data of the pH sensor (26) to the acid-base controller (21), replacing the existing wires connecting the pH sensor (26) and the acid-base controller (21) , this design helps to improve the unstable and susceptible to interference problems caused by the use of wires, and also reduces the manpower and time when the pH sensor (26) and the acid-base controller (21) are calibrated; (two) ) For researchers and wastewater operators, the preservation and traceability of operational data is an important task. Traditional acid-base neutralization equipment lacks a database to store operational data so that relevant data can be quickly and accurately found when needed At present, the folks are adding a set of recorders to store data using paper or memory cards. What is more advanced is to add a set of synchronized cloud water quality monitoring equipment, and transmit the data to the cloud database through 4GLTE communication for traceability. Use, on the other hand, when the present invention design utilizes the wireless communication mode of Wifi to transmit the data of described pH sensor (26) to described acid-base controller (21), namely synchronously store data in the MySQL data of cloud Database, so that researchers, wastewater operators or managers can browse real-time water quality data through the Internet at any time; (3) Wastewater equipment operators and enterprise managers can use the established database to obtain correct operation and management Information, such as assisting in the improvement of internal processes or adjustment of controller setting values, etc., will increase the efficiency of water quality management, reduce the environmental protection costs of enterprises and reduce environmental risks, and researchers can use this information to further understand the changes in the pH value of the wastewater of the enterprise , which in turn can improve its wastewater equipment, and can be used as a reference for new design schemes; (4) The wireless control dosing function can perform timely dosing adjustments for changes in water quality (pH value) and keep water quality within the allowable range Inside.

Only the above is only a preferred embodiment of the present invention, and should not be used to limit the scope of the present invention; that is, all equivalent changes and modifications made according to the patent scope of the present invention should still belong to this creation within the scope of the patent.

(10): Ontology

(11): Bracket

(12): Liquid Medicine Barrel

(121): infusion tube

(122): Dosing solenoid valve

(13): neutralization tank

(14): Blender

(20): control box

(21): acid-base controller

(22): Precision amplifier circuit module

(23): Main control board of control terminal

(24): Sensing side main control board

(25):Sensing circuit board

(26):pH sensor

(30):water pump

(50):Wastewater

Claims (9)

A cloud-based wastewater quality monitoring and automatic dosing system, which includes: a body, a control box and a pump, wherein: The body has a bracket used to provide the control box for installation. Two liquid medicine tanks are arranged on the bracket, and a neutralization tank is arranged below, and each of the two liquid medicine tanks is connected to an infusion tube. Elevating the liquid medicine barrel and cooperating with the extension of the two infusion tubes, the medicine can be added above the neutralization tank, and a mixer is arranged on the neutralization tank; An acid-base controller is installed on the control box, and the acid-base controller is connected to a control terminal main control board by using a precision amplifying circuit module, so that the acid-base controller can pass through the control terminal main control board The network is connected to a cloud database, and the control box is also equipped with a sensing terminal main control board, a sensing circuit board and a pH sensor connected to each other. The pH sensor is a vertical into the neutralization tank so that the pH sensor can be used to measure the concentration of hydrogen ions in the tank solution, and the sensing circuit board is used to convert the microvoltage measured by the pH sensor into the The signal that can be received by the main control board of the sensing end is converted into a pH value, and then uploaded to the cloud database through the main control board of the sensing end through the network, so that the cloud database can store individual sampling time Then, according to the sensing data, the measured data is returned from the cloud database to the control board through the network. When the control board receives the signal, it can use the The precision amplification circuit module converts the data into a voltage value and then transmits it to the acid-base controller, so that the acid-base controller can judge whether it needs to be automatically added according to the upper and lower limits of the pH value set in advance. medicine, so that the program can automatically adjust the pH Function; The water pump is used to collect waste water in the monitoring field, so that the waste water can be pumped into the neutralization tank through the water pump for detection. The cloud-based wastewater quality monitoring and automatic dosing system as described in claim 1, wherein, the two infusion pipes are provided with a dosing solenoid valve controlled by the acid-base controller, which is controlled by the acid-base controller The operation of automatic dosing can be successfully completed by opening or closing the dosing solenoid valve. The cloud-based wastewater quality monitoring and automatic dosing system as described in claim 1, wherein the two liquid medicine barrels are respectively equipped with acid and lye, so that the acid or lye can be added to do the The acid-base neutralizer of the above-mentioned wastewater quality. The cloud-based wastewater quality monitoring and automatic dosing system as described in Claim 1, wherein the acid-base controller is a SUNTEX PC-310 acid-base controller. The cloud-based wastewater quality monitoring and automatic dosing system as described in claim 1, wherein the main control board at the control end and the main control board at the sensing end are a NodeMCU development board. The cloud-based wastewater quality monitoring and automatic dosing system according to claim 1, wherein the pH sensor is a pH composite electrode sensor. The cloud-based wastewater quality monitoring and automatic dosing system according to claim 1, wherein the sensing circuit board is a pH sensing circuit board module supporting ARDUINO. The cloud-based wastewater quality monitoring and automatic dosing system as described in claim 1, wherein the precision amplifier circuit module and the acid-base controller are connected by a cable. The cloud-based wastewater quality monitoring and automatic dosing system as described in claim 1, wherein the pH sensor, the sensing circuit board, and the sensing terminal main control board are all connected by cables.

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