Circulating water automatic control system based on intelligent instrument

Abstract

The invention discloses an automatic circulating water control system based on an intelligent instrument, which relates to the technical field of circulating water treatment and comprises a front-end sensor detection module, a data communication module, a data analysis control module, a water quality regulation module, an execution module and a man-machine interaction module, and the front-end sensor detection module is used for performing water quality online detection on a water sample passing through an outlet pipeline of the circulating water pump through a front-end sensor to obtain online water quality index data of the circulating water. Through real-time monitoring of the front-end sensor and accurate analysis of the data analysis control module, abnormal conditions in the circulating water system can be found in time, corresponding measures can be taken rapidly for adjustment, meanwhile, the execution module can accurately execute control instructions, it is ensured that the system is in a stable running state all the time, and the service life of the system is prolonged. The reliability of the system is greatly improved, and production interruption and equipment damage caused by system faults are reduced.

Description

Technical Field

[0001] The invention relates to the technical field of circulating water treatment, in particular to an automatic circulating water control system based on intelligent instruments. Background Art

[0002] In industrial production, such as chemical, steel, electric power and other industries, the circulating water system is an important auxiliary system that provides cooling, lubrication and other functions for production equipment. In order to ensure the continuous and stable operation of the production process, the circulating water system needs to be efficiently controlled and managed.

[0003] At present, the traditional circulating water control method mainly relies on manual regular sampling testing and experience judgment to adjust the dosage and control equipment operation. It is difficult to timely and accurately reflect the changes in the circulating water quality and the system operation status, resulting in untimely and inaccurate circulating water control, which in turn affects the subsequent use of circulating water. Summary of the invention

[0004] The purpose of the present invention is to provide an automatic circulating water control system based on intelligent instruments to solve the problem that the traditional circulating water control method proposed in the above background technology mainly relies on manual regular sampling and testing and empirical judgment to adjust the dosage and control the operation of the equipment, which is difficult to timely and accurately reflect the changes in the water quality of the circulating water and the operating status of the system, resulting in untimely and inaccurate circulating water control, which in turn affects the subsequent use of the circulating water.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solutions: a circulating water automatic control system based on intelligent instruments, comprising a front-end sensor detection module, a data communication module, a data analysis control module, a water quality adjustment module, an execution module and a human-computer interaction module; The front-end sensor detection module is used to perform online water quality detection on the water sample passing through the outlet pipeline of the circulating water pump through the front-end sensor to obtain online water quality index data of the circulating water; The data communication module is used to provide a communication interface to realize data transmission between modules and provide real-time monitoring and control of the system; The data analysis control module is used to receive various index data of circulating water transmitted from the online instrument test device, process and analyze the data and generate corresponding control instruction output; The water quality adjustment module is used to add chemical agents to the circulating water to adjust the water quality of the circulating water, including acid-base adjustment, scale inhibitor adjustment and corrosion inhibitor adjustment, so as to ensure that the water quality meets specific standards; The execution module is used to actually execute the control strategy and adjust the operating state of the system according to the sensor data and the controller instructions; The human-computer interaction module is used to provide a visual operation interface for operators, displaying various index data of circulating water, the operating status of the system and alarm information.

[0006] Preferably, the front-end sensor detection module includes a temperature sensor, a flow sensor, a pressure sensor and a water quality sensor; The temperature sensor is used to monitor the temperature data of circulating water; The flow sensor is used to measure water flow velocity and flow rate; The pressure sensor is used to monitor the internal pressure of the circulating water pipeline in real time; The water quality sensor is used to monitor the pH value, turbidity and conductivity of water.

[0007] Preferably, the data communication module includes a communication interface, a wireless communication module, a data acquisition module and a communication gateway; The communication interface includes a serial communication interface and a network interface. The serial communication interface is used for short-distance and point-to-point or multi-point data transmission, and the network interface is used to realize data exchange between devices through a local area network. The wireless communication module is used to realize wireless communication between devices without wired connection.

[0008] Preferably, the data analysis and control module includes a real-time data acquisition module, a data storage module, a data preprocessing module, a data analysis module, a control strategy optimization module and an abnormality detection and alarm module; The real-time data acquisition module is used to regularly collect circulating water related data, including temperature, flow, pressure, and water quality parameters; The data storage module is used to establish a database to store the collected historical data for subsequent analysis and evaluation; The data preprocessing module is used to remove noise, fill missing values ​​and convert data formats of the collected data; The data analysis module is used to analyze the correlation between various indicators of circulating water through a correlation analysis algorithm, find out the key factors affecting water quality, and provide a reference for optimizing the dosing plan; The control strategy optimization module is used to generate corresponding control instructions according to the results of data analysis and automatically adjust the control strategy according to the target function; The abnormality detection alarm module is used to set thresholds and status monitoring, monitor the system status in real time and issue alarms in time to handle abnormal situations.

[0009] Preferably, the specific process of analyzing the correlation between various indicators of circulating water by the correlation analysis algorithm in the data analysis module is: using the Pearson correlation coefficient formula to calculate each pair of indicators, obtaining the Pearson correlation coefficient by calculation, and judging the strength of the correlation between the indicators based on the calculated correlation coefficient.

[0010] Preferably, the water quality adjustment module includes a medicine storage module, a flow control module and a medicine adding module; The reagent storage module is used to store chemical reagents for regulating water quality; The flow control module is used to monitor and control the dosing flow rate, and is used to receive control instructions through a PLC or DCS controller to automatically adjust the amount of the added agent according to changes in water quality; The dosing module is used to inject chemical agents into circulating water at a set flow rate and concentration through a dosing pump.

[0011] Preferably, the execution module includes a dosing pump control module and a circulating water pump control module; The dosing pump control module is used to control the operation of the dosing pump using variable frequency speed regulation technology according to the dosing instruction generated by the data analysis control module; The circulating water pump control module is used to transport circulating water to various water use points and maintain the pressure and flow stability of the system.

[0012] Preferably, the human-computer interaction module includes a real-time display module, an alarm notification module and an operation module; The real-time display module is used to display various index data of circulating water and the operating status of the system in real time, and to display trend analysis diagrams of various indexes of circulating water; The alarm notification module is used to promptly display alarm information to notify operators when an abnormal situation occurs in the system, and to view the specific alarm content and location through the alarm information.

[0013] Compared with the prior art, the present invention has the following beneficial effects: 1. In the present invention, through the real-time monitoring of the front-end sensor and the precise analysis of the data analysis control module, abnormal conditions in the circulating water system can be discovered in time, and corresponding measures can be taken quickly to make adjustments. At the same time, the execution module can accurately execute control instructions to ensure that the system is always in a stable operating state, which greatly improves the reliability of the system and reduces production interruptions and equipment damage caused by system failures.

[0014] 2. In the present invention, the water quality adjustment module can accurately add chemical agents according to actual conditions to achieve effective regulation of the circulating water quality. The dosing pump and the circulating water pump can be accurately controlled, and the operating status can be adjusted according to actual needs to avoid energy waste. The system pressure and flow can be maintained stable to avoid excessive operation, thereby reducing energy consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The present invention is a system block diagram of a circulating water automatic control system based on intelligent instruments.

[0016] In the figure: 1. Front-end sensor detection module; 2. Data communication module; 3. Data analysis and control module; 31. Real-time data acquisition module; 32. Data storage module; 33. Data preprocessing module; 34. Data analysis module; 35. Control strategy optimization module; 36. Abnormal detection and alarm module; 4. Water quality adjustment module; 5. Execution module; 6. Human-computer interaction module. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the implementation regulations described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] Reference Figure 1 As shown: A circulating water automatic control system based on intelligent instruments, including a front-end sensor detection module 1, a data communication module 2, a data analysis and control module 3, a water quality adjustment module 4, an execution module 5 and a human-computer interaction module 6; The front-end sensor detection module 1 is used to perform online water quality detection on the water sample passing through the outlet pipeline of the circulating water pump through the front-end sensor, obtain online water quality index data of the circulating water, monitor the water quality in real time through multiple sensors, and combine data analysis and water quality adjustment to accurately control the water quality of the circulating water, reduce scaling, corrosion and other problems, and extend the service life of the equipment; specifically, it includes a temperature sensor, a flow sensor, a pressure sensor and a water quality sensor; The temperature sensor is used to monitor the temperature data of circulating water; the flow sensor is used to measure the water flow velocity and flow rate; the pressure sensor is used to monitor the internal pressure of the circulating water pipeline in real time; the water quality sensor is used to monitor the pH value, turbidity and conductivity of water; The data communication module 2 is used to provide a communication interface to realize data transmission between modules and provide real-time monitoring and control of the system; specifically, it includes a communication interface, a wireless communication module, a data acquisition module and a communication gateway; The communication interface includes a serial communication interface and a network interface. The serial communication interface is used for short-distance and point-to-point or multi-point data transmission, and the network interface is used to realize data exchange between devices through a local area network; the wireless communication module is used to realize wireless communication between devices without a wired connection; The data analysis control module 3 is used to receive the data of various indicators of circulating water transmitted from the online instrument test device, process and analyze the data and generate corresponding control instruction outputs, find out the key factors affecting water quality through the correlation analysis algorithm, and provide a scientific basis for optimizing the dosing plan. The control strategy optimization module can automatically adjust the control strategy according to the data analysis results to make the system run more efficiently; specifically, it includes a real-time data acquisition module 31, a data storage module 32, a data preprocessing module 33, a data analysis module 34, a control strategy optimization module 35 and an abnormality detection alarm module 36; The real-time data acquisition module 31 is used to regularly collect circulating water related data, including temperature, flow, pressure, and water quality parameters; The data storage module 32 is used to establish a database to store the collected historical data for subsequent analysis and evaluation; The data preprocessing module 33 is used to remove noise, fill missing values ​​and convert data formats for the collected data; The data analysis module 34 is used to analyze the correlation between various indicators of the circulating water through a correlation analysis algorithm, find out the key factors affecting the water quality, and provide a reference for optimizing the dosing plan; The specific process of analyzing the correlation between various indicators of circulating water by using the correlation analysis algorithm is as follows: using the Pearson correlation coefficient formula to calculate each pair of indicators, obtaining the Pearson correlation coefficient by calculation, and judging the strength of the correlation between the indicators according to the calculated correlation coefficient; The control strategy optimization module 35 is used to generate corresponding control instructions according to the results of data analysis and automatically adjust the control strategy according to the target function; The abnormality detection alarm module 36 is used to set thresholds and status monitoring, monitor the system status in real time and issue alarms in time to handle abnormal situations; The water quality adjustment module 4 is used to add chemical agents to the circulating water and adjust the water quality of the circulating water, including acid-base adjustment, scale inhibitor adjustment and corrosion inhibitor adjustment, so as to ensure that the water quality meets specific standards, accurately add chemical agents according to actual conditions, and effectively adjust the water quality of the circulating water to prevent scaling, corrosion and other problems; specifically, it includes a chemical storage module, a flow control module and a dosing module; The reagent storage module is used to store chemical reagents for regulating water quality; The flow control module is used to monitor and control the dosing flow, and is used to receive control instructions through the PLC or DCS controller to automatically adjust the amount of added agents according to changes in water quality; The dosing module is used to inject chemicals into the circulating water at a set flow rate and concentration through a dosing pump; The execution module 5 is used to actually execute the control strategy and adjust the operating state of the system according to the sensor data and the controller instructions; specifically, it includes a dosing pump control module and a circulating water pump control module; The dosing pump control module is used to control the operation of the dosing pump using variable frequency speed regulation technology according to the dosing instruction generated by the data analysis control module 3; The circulating water pump control module is used to deliver circulating water to various water use points and maintain the system's pressure and flow rate stable; The human-computer interaction module 6 is used to provide a visual operation interface for the operator, displaying various index data of circulating water, the operating status of the system and alarm information. By providing a visual operation interface, displaying various index data of circulating water, the operating status of the system and alarm information, the operator can understand the system situation in real time through the interface, set parameters and send control instructions, which is convenient and fast; specifically, it includes a real-time display module, an alarm notification module and an operation module; The real-time display module is used to display the various index data of circulating water and the operating status of the system in real time, and to display the trend analysis chart of various indexes of circulating water; The alarm notification module is used to promptly display alarm information to notify operators when abnormal conditions occur in the system, and to view the specific alarm content and location through the alarm information.

[0019] The use method and working principle of the present invention: through the real-time monitoring of the front-end sensor and the precise analysis of the data analysis control module, the abnormal situation in the circulating water system can be discovered in time, and corresponding measures can be taken quickly to make adjustments. At the same time, the execution module 5 can accurately execute the control instructions to ensure that the system is always in a stable operating state, which greatly improves the reliability of the system and reduces the production interruption and equipment damage caused by system failure. Through the water quality adjustment module 4, chemical agents can be accurately added according to the actual situation to achieve effective regulation of the circulating water quality, which can not only prevent the occurrence of problems such as scaling and corrosion, but also ensure that the circulating water always meets specific standards, provide good cooling and lubrication conditions for production equipment, and extend the service life of the equipment. Through the precise control of the dosing pump and the circulating water pump, the operating state can be adjusted according to actual needs to avoid energy waste. The human-computer interaction module 6 provides a visual operation interface for the operator, displaying various index data of the circulating water, the operating state of the system and alarm information, etc. The operator can understand the system situation in real time through the interface, set parameters and send control instructions, which is convenient and fast. At the same time, the alarm notification module can promptly notify the operator of the abnormal situation of the system, which is convenient to take measures to deal with it quickly, and improve the management efficiency of the system.

[0020] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A circulating water automatic control system based on intelligent instruments, characterized in that: It comprises a front-end sensor detection module (1), a data communication module (2), a data analysis and control module (3), a water quality adjustment module (4), an execution module (5) and a human-computer interaction module (6); The front-end sensor detection module (1) is used to detect the water quality online from the water sample passing through the outlet pipeline of the circulating water pump through the front-end sensor, and obtain the online water quality index data of the circulating water; The data communication module (2) is used to provide a communication interface to realize data transmission between modules and provide real-time monitoring and control of the system; The data analysis control module (3) is used to receive various index data of circulating water transmitted from the online instrument test device, process and analyze the data and generate corresponding control instruction output; The water quality adjustment module (4) is used to add chemical agents to the circulating water to adjust the water quality of the circulating water, including acid-base adjustment, scale inhibitor adjustment and corrosion inhibitor adjustment, so as to ensure that the water quality meets specific standards; The execution module (5) is used to actually execute the control strategy and adjust the operating state of the system according to the sensor data and the controller instructions; The human-machine interaction module (6) is used to provide a visual operation interface for operators, displaying various index data of circulating water, the operating status of the system and alarm information.

2. According to claim 1, a circulating water automatic control system based on intelligent instrument is characterized in that: The front-end sensor detection module (1) comprises a temperature sensor, a flow sensor, a pressure sensor and a water quality sensor; The temperature sensor is used to monitor the temperature data of circulating water; The flow sensor is used to measure water flow velocity and flow rate; The pressure sensor is used to monitor the internal pressure of the circulating water pipeline in real time; The water quality sensor is used to monitor the pH value, turbidity and conductivity of water.

3. According to claim 1, a circulating water automatic control system based on intelligent instrument is characterized in that: The data communication module (2) comprises a communication interface, a wireless communication module, a data acquisition module and a communication gateway; The communication interface includes a serial communication interface and a network interface. The serial communication interface is used for short-distance and point-to-point or multi-point data transmission, and the network interface is used to realize data exchange between devices through a local area network. The wireless communication module is used to realize wireless communication between devices without wired connection.

4. The automatic circulating water control system based on intelligent instrument according to claim 1 is characterized in that: The data analysis control module (3) comprises a real-time data acquisition module (31), a data storage module (32), a data preprocessing module (33), a data analysis module (34), a control strategy optimization module (35) and an abnormality detection alarm module (36); The real-time data acquisition module (31) is used to regularly collect circulating water related data, including temperature, flow, pressure, and water quality parameters; The data storage module (32) is used to establish a database to store the collected historical data for subsequent analysis and evaluation; The data preprocessing module (33) is used to remove noise, fill missing values ​​and convert data formats on the collected data; The data analysis module (34) is used to analyze the correlation between various indicators of the circulating water through a correlation analysis algorithm, find out the key factors affecting the water quality, and provide a reference for optimizing the dosing plan; The control strategy optimization module (35) is used to generate corresponding control instructions according to the results of data analysis, and automatically adjust the control strategy according to the target function; The abnormality detection alarm module (36) is used to set thresholds and status monitoring, monitor the system status in real time and issue an alarm in time to handle abnormal situations.

5. The automatic circulating water control system based on intelligent instrument according to claim 4 is characterized in that: The specific process of analyzing the correlation between various indicators of circulating water by using the correlation analysis algorithm in the data analysis module (34) is as follows: using the Pearson correlation coefficient formula to calculate each pair of indicators, obtaining the Pearson correlation coefficient by calculation, and judging the strength of the correlation between the indicators based on the calculated correlation coefficient.

6. The automatic circulating water control system based on intelligent instrument according to claim 1 is characterized by: The water quality adjustment module (4) comprises a medicine storage module, a flow control module and a medicine adding module; The reagent storage module is used to store chemical reagents for regulating water quality; The flow control module is used to monitor and control the dosing flow rate, and is used to receive control instructions through a PLC or DCS controller to automatically adjust the amount of the added agent according to changes in water quality; The dosing module is used to inject chemical agents into circulating water at a set flow rate and concentration through a dosing pump.

7. The automatic circulating water control system based on intelligent instrument according to claim 1 is characterized by: The execution module (5) includes a dosing pump control module and a circulating water pump control module; The dosing pump control module is used to control the operation of the dosing pump using variable frequency speed regulation technology according to the dosing instruction generated by the data analysis control module (3); The circulating water pump control module is used to transport circulating water to various water use points and maintain the pressure and flow stability of the system.

8. The automatic circulating water control system based on intelligent instrument according to claim 1 is characterized by: The human-computer interaction module (6) includes a real-time display module, an alarm notification module and an operation module; The real-time display module is used to display various index data of circulating water and the operating status of the system in real time, and to display trend analysis diagrams of various indexes of circulating water; The alarm notification module is used to promptly display alarm information to notify operators when an abnormal situation occurs in the system, and to view the specific alarm content and location through the alarm information.

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