PLC-controlled Internet of Things automation system

Abstract

The utility model relates to an Internet of Things automation system controlled by a PLC, and relates to the field of sewage treatment systems. The sewage treatment system comprises a regulating tank, an anaerobic tank, an aeration tank, a sedimentation tank, a disinfection tank, a medicament barrel and a clean water tank, a lifting pump is mounted in the regulating tank, an air blowing fan connected with the aeration tank is mounted outside the aeration tank, a sludge reflux pump is mounted in the sedimentation tank, a stirring pump and a dosing pump are mounted on the medicament barrel, and the sewage treatment system further comprises a PLC (programmable logic controller) control cabinet. Automatic control and remote monitoring of the sewage treatment process are achieved through the PLC and the internet-of-things measurement and control terminal, the sewage treatment efficiency and quality are improved, real-time monitoring of the operation state of a field device water pump fan can be achieved during use, and internet-of-things remote control is achieved by configuring the PLC, the touch screen and the internet-of-things measurement and control terminal.

Description

Technical Field

[0001] This application relates to the technical field of wastewater treatment systems, and in particular to a PLC-controlled Internet of Things (IoT) automation system. Background Technology

[0002] With industrial development and population growth, wastewater treatment has become a crucial issue. Wastewater treatment often involves processes such as equalization tanks, anaerobic tanks, aeration tanks, sedimentation tanks, disinfection tanks, and clear water tanks. The entire treatment system is quite large, and traditional methods often require manual operation and monitoring, making the operation and monitoring of each process very cumbersome.

[0003] Regarding the aforementioned technologies, the inventors have found that current integrated wastewater treatment systems in China suffer from low automation, cumbersome operation, high labor intensity for on-site operators, frequent motor burnouts due to equipment malfunctions, a lack of adequate protective measures, and a shortage of professional technicians for operation and maintenance. Furthermore, traditional systems struggle to achieve remote monitoring and management, and cannot respond promptly to emergencies. Utility Model Content

[0004] To achieve better operation and control of the entire wastewater treatment system, this application provides a PLC-controlled Internet of Things (IoT) automation system.

[0005] The PLC-controlled Internet of Things (IoT) automation system provided in this application adopts the following technical solution:

[0006] A PLC-controlled IoT automation system includes an equalization tank, an anaerobic tank, an aeration tank, a sedimentation tank, a disinfection tank, a chemical tank, and a clear water tank. A lift pump is installed in the equalization tank. An air blower is connected to the outside of the aeration tank. A sludge return pump is installed in the sedimentation tank. A stirring pump and a dosing pump are installed on the chemical tank. The system also includes a PLC control cabinet, which houses a PLC programmable controller and an IoT monitoring and control terminal for controlling the lift pump, air blower, sludge return pump, stirring pump, and dosing pump.

[0007] By adopting the above technical solutions, the PLC programmable controller automates the control of the booster pump, blower, sludge return pump, mixing pump, and dosing pump, improving the automation level of the wastewater treatment process and reducing manual operation and human error. The IoT monitoring and control terminal enables communication between the system and the remote monitoring platform, facilitating remote monitoring and management and improving the system's response speed and processing efficiency. Simultaneously, centralized control by the PLC programmable controller and the IoT monitoring and control terminal allows for remote operation, monitoring, and maintenance via mobile app and computer. The automated system, equipped with the IoT monitoring and control terminal, enables remote fault diagnosis, remote guidance for operation, debugging, and program modification.

[0008] Optionally, the PLC control cabinet is equipped with a touch screen, which displays an overview of wastewater treatment, IoT communication settings, and alarm records.

[0009] By adopting the above technical solution, the wastewater treatment overview screen, IoT communication settings screen, and alarm record screen on the touch screen provide staff with an intuitive and convenient operation and monitoring interface. Staff can use the wastewater treatment overview screen to understand the system's operating status and parameters in real time, set communication parameters through the IoT communication settings screen, and promptly detect and handle system faults through the alarm record screen. Simultaneously, during operation, the control system displays the operating status of each pump and fan, as well as the values ​​of various water quality parameter sensors, on the touch screen interface, along with the wastewater treatment overview screen, communication settings screen, and alarm record screen.

[0010] Optionally, the alarm recording screen includes water pump failure alarm, fan failure alarm, and liquid level alarm.

[0011] By adopting the above technical solution, the alarm recording screen includes water pump fault alarm, fan fault alarm, and liquid level alarm, which can promptly detect various faults and abnormalities in the system operation process, remind staff to deal with them in time, avoid the escalation of the fault, and ensure the stable operation of the system.

[0012] Optionally, a pretreatment box assembly is provided at the front end of the regulating tank. The pretreatment box assembly includes a main box and a grid filter screen. The grid filter screen is installed in the main box and is rotatably connected to the main box. A sewage discharge component is also fixedly installed in the main box, and a drive component for driving the grid filter screen to flip is also installed on the rear end face of the main box.

[0013] By adopting the above technical solution, the pretreatment tank set at the front end of the equalization tank can perform preliminary filtration of sewage, remove large particulate impurities, reduce the burden on subsequent treatment units, extend the service life of the equipment, and improve the sewage treatment effect. Furthermore, by designing the pretreatment tank as a structure in which the main body and the grid filter screen cooperate, it can receive the sewage to be treated through the main body when it is easy to use, and then perform preliminary filtration of the sewage through the grid filter screen in real time. The sewage discharge component is set to facilitate the transportation of the pre-filtered sewage to the equalization tank. At the same time, when the drive component flips the grid filter screen, the impurities on the grid filter screen can be cleaned in reverse, and then discharged to the outside through the sewage discharge component.

[0014] Optionally, the main housing includes a housing base and a housing shell. The housing shell is installed on the upper end face of the housing base and is fixedly connected to the housing base. The inner side of the housing base is also symmetrically provided with arc-shaped inner seats, which are integrally formed with the housing shell.

[0015] By adopting the above technical solution, the design of the main chamber base and shell structure improves the stability and sealing of the main chamber, prevents sewage leakage, and ensures the normal operation of the pretreatment tank unit. At the same time, by symmetrically setting two sets of arc-shaped inner seats on the inner side of the base, it is convenient to ensure the stable installation and use of the grid filter screen through the two sets of arc-shaped inner seats.

[0016] Optionally, the grid filter screen includes a central rod frame, an arc-shaped outer plate, and a filter screen plate. The central rod frame is rotatably mounted on the housing. There are two sets of arc-shaped outer plates, and the two sets of arc-shaped outer plates are respectively fixed at both ends of the central rod frame. The filter screen plate is fixedly installed between the two sets of arc-shaped outer plates.

[0017] By adopting the above technical solution, the grid filter screen is designed with a structure that combines a central frame, an arc-shaped outer plate, and a filter screen plate. During use, the grid filter screen's structural design enables it to effectively filter large particulate impurities in wastewater. Furthermore, the drive mechanism allows it to be flipped over, facilitating filter screen cleaning and ensuring the filter screen's filtration effect and service life.

[0018] Optionally, the sewage discharge assembly includes a sewage pump and a diversion pipe assembly, which is fixedly installed at the bottom of the housing. The diversion pipe assembly extends to the outside of the housing and is connected to the outlet of the sewage pump.

[0019] By adopting the above technical solution, the sewage discharge component is designed as a structure that combines a sewage pump and a diversion pipe assembly. In actual use, the sewage pump can discharge sewage from the diversion pipe assembly, which has a double-pass structure. This facilitates the normal discharge of sewage into the equalization tank, or it can discharge the filtered impurities into the pretreatment tank, preventing impurities from accumulating in the tank and affecting the pretreatment effect, thus ensuring the normal operation of the pretreatment tank.

[0020] Optionally, the driving component includes a base and a tilting motor. The base is fixedly mounted on the outer side of the housing, and the tilting motor is fixedly mounted on the base. The output end of the tilting motor is connected to the middle part of the central frame.

[0021] By adopting the above technical solution, the driving component can drive the grid filter to flip, realize the automatic cleaning of the filter, reduce the workload of manual cleaning, and improve work efficiency.

[0022] In summary, this application includes at least one of the following beneficial technical effects:

[0023] This application achieves automated control and remote monitoring of the wastewater treatment process through a PLC programmable controller and an IoT monitoring and control terminal, improving wastewater treatment efficiency and quality. During use, it enables real-time monitoring of the operating status of on-site equipment such as pumps and fans. The PLC, touchscreen, and IoT monitoring and control terminal enable remote IoT control. The control system is a comprehensive digital system integrating monitoring and operation; operators only need to configure the touchscreen interface to perform operations, monitoring, and data recording queries. The pretreatment tanks provide initial treatment of the wastewater, reducing the burden on subsequent treatment processes. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the wastewater treatment system in an embodiment of this application.

[0025] Figure 2 This is a schematic diagram of the PLC control cabinet controlling the pump and fan in an embodiment of this application.

[0026] Figure 3 This is a perspective view of the pretreatment box assembly in the embodiments of this application.

[0027] Figure 4 yes Figure 3 A cross-sectional view of the device shown.

[0028] Figure 5 yes Figure 3 Top view of the device shown.

[0029] Figure 6 This is a perspective view of the grid filter in the embodiments of this application.

[0030] Explanation of reference numerals in the attached drawings: 1. Equalization tank; 11. Lifting pump; 2. Anaerobic tank; 3. Aeration tank; 31. Blower; 4. Sedimentation tank; 41. Sludge return pump; 5. Disinfection tank; 6. Chemical tank; 61. Mixing pump; 62. Dosing pump; 7. Clear water tank; 8. PLC control cabinet; 81. Programmable controller; 82. IoT monitoring and control terminal; 83. Touch screen; 9. Pretreatment unit; 91. Main body; 911. Base; 912. Shell; 913. Arc-shaped inner seat; 92. Grid filter screen; 921. Central frame; 922. Arc-shaped outer plate; 923. Filter screen plate; 93. Sewage discharge assembly; 931. Sewage pump; 932. Diversion pipe assembly; 94. Drive component; 941. Base; 942. Tilting motor. Detailed Implementation

[0031] The present application will be further described in detail below with reference to the accompanying drawings.

[0032] This application discloses a PLC-controlled Internet of Things (IoT) automation system. (Refer to...) Figure 1 and Figure 2As shown, a PLC-controlled IoT automation system includes an equalization tank 1, an anaerobic tank 2, an aeration tank 3, a sedimentation tank 4, a disinfection tank 5, a chemical tank 6, and a clear water tank 7. A lift pump 11 is installed in the equalization tank 1. An air blower 31 is connected to the outside of the aeration tank 3. A sludge return pump 41 is installed in the sedimentation tank 4. A stirring pump 61 and a dosing pump 62 are installed on the chemical tank 6. The system also includes a PLC control cabinet 8, which houses a PLC programmable controller 81 and an IoT monitoring and control terminal 82 that control the lift pump 11, air blower 31, sludge return pump 41, stirring pump 61, and dosing pump 62. The PLC programmable controller 81 automates the control of the lift pump 11, air blower 31, sludge return pump 41, stirring pump 61, and dosing pump 62, improving the automation level of the wastewater treatment process and reducing manual operation and human error. The IoT monitoring and control terminal 82 enables communication between the system and the remote monitoring platform, facilitating remote monitoring and management and improving the system's response speed and processing efficiency. Simultaneously, it is centrally controlled by the PLC programmable controller 81 and the IoT monitoring and control terminal 82. During use, remote operation, remote monitoring, and remote maintenance can also be achieved via a mobile app and computer. The automation system equipped with the IoT monitoring and control terminal 82 enables remote fault diagnosis, remote guidance for operation, debugging, and program modification.

[0033] Reference Figure 1 and Figure 2 As shown, a touchscreen 83 is installed on the PLC control cabinet 8. The touchscreen 83 displays a wastewater treatment overview screen, an IoT communication settings screen, and an alarm log screen. These screens provide operators with an intuitive and convenient interface for operation and monitoring. Operators can monitor the system's operating status and parameters in real time through the wastewater treatment overview screen, set communication parameters through the IoT communication settings screen, and promptly detect and handle system faults through the alarm log screen. Simultaneously, during operation, the control system displays the operating status of each pump and fan, as well as the values ​​of various water quality parameter sensors on the touchscreen 83 interface. The alarm log screen includes alarms for pump failures, fan failures, and liquid level. This allows for the timely detection of various faults and abnormalities during system operation, alerting operators to address them promptly, preventing escalation of faults, and ensuring stable system operation.

[0034] Reference Figure 3 , Figure 4 and Figure 5As shown, a pretreatment box assembly 9 is provided at the front end of the equalization tank 1. The pretreatment box assembly 9 includes a main box 91 and a grid filter 92. The grid filter 92 is installed in the main box 91 and is rotatably connected to the main box 91. A sewage discharge assembly 93 is also fixedly installed in the main box 91, and a drive component 94 for driving the grid filter 92 to flip is also installed on the rear end face of the main box 91. The pretreatment tank 9 installed at the front end of the equalization tank 1 can perform preliminary filtration of sewage, remove large particulate impurities, reduce the burden on subsequent treatment units, extend the service life of the equipment, and improve the sewage treatment effect. By designing the pretreatment tank 9 into a structure in which the main body 91 and the grid filter 92 cooperate, it can receive the sewage to be treated through the main body 91 and then perform preliminary filtration of the sewage in real time through the grid filter 92. The sewage discharge component 93 is set to facilitate the transportation of the pre-filtered sewage to the equalization tank 1. At the same time, when the drive component 94 flips the grid filter 92, the impurities on the grid filter 92 can be cleaned in reverse, and then discharged directly to the outside through the sewage discharge component 93.

[0035] Reference Figure 3 As shown, the main housing 91 includes a base 911 and a shell 912. The shell 912 is installed on the upper surface of the base 911 and is fixedly connected to the base 911. A curved inner seat 913 is symmetrically arranged on the inner side of the base 911, and the curved inner seat 913 is integrally formed with the shell 912. The structure of the base 911 and shell 912 of the main housing 91 improves the stability and sealing of the main housing 91, prevents sewage leakage, and ensures the normal operation of the pretreatment unit 9. Simultaneously, by symmetrically arranging two sets of curved inner seats 913 on the inner side of the base 911, it is convenient to ensure the stable installation and use of the grid filter 92 through the two sets of curved inner seats 913.

[0036] Reference Figure 6 As shown, the grid filter 92 includes a central frame 921, an arc-shaped outer plate 922, and a filter plate 923. The central frame 921 is rotatably mounted on the housing 912. There are two sets of arc-shaped outer plates 922, each fixed to one end of the central frame 921. The filter plate 923 is fixedly installed between the two sets of arc-shaped outer plates 922. By adopting the above technical solution, and designing the grid filter 92 with the central frame 921, arc-shaped outer plate 922, and filter plate 923 working together, the grid filter 92's structure effectively filters large particulate impurities in wastewater. Furthermore, the drive component 94 allows for rotation, facilitating filter cleaning and ensuring the filter's filtration efficiency and service life.

[0037] Reference Figure 4As shown, the sewage discharge assembly 93 includes a sewage pump 931 and a diversion pipe assembly 932, which are fixedly installed at the bottom of the housing 912. The diversion pipe assembly 932 extends outside the housing 912 and is connected to the outlet of the sewage pump 931. By designing the sewage discharge assembly 93 as a structure in which the sewage pump 931 and the diversion pipe assembly 932 cooperate, the sewage pump 931 can discharge sewage from the diversion pipe assembly 932 during actual use. The diversion pipe assembly 932 has a double-pass structure, which facilitates the normal discharge of sewage into the equalization tank 1, or the discharge of filtered impurities into the pretreatment tank 9, avoiding the accumulation of impurities in the tank and affecting the pretreatment effect, thus ensuring the normal operation of the pretreatment tank 9.

[0038] Reference Figure 5 As shown, the drive unit 94 includes a base 941 and a tilting motor 942. The base 941 is fixedly mounted on the outer side of the housing 912, and the tilting motor 942 is fixedly mounted on the base 941. The output end of the tilting motor 942 is connected to the middle part of the central frame 921. The drive unit 94 can drive the grid filter 92 to tilt, realizing automatic cleaning of the filter, reducing the workload of manual cleaning, and improving work efficiency.

[0039] The implementation principle of a PLC-controlled IoT automation system in this embodiment is as follows: When system monitoring and management are required, staff can monitor the system's operating status and parameters, such as liquid level, flow rate, and temperature, in real time through the wastewater treatment overview screen on the touchscreen 83. Through the IoT monitoring and control terminal 82, the system can communicate with a remote monitoring platform to achieve remote monitoring and management. Staff can view the system's operating data and alarm information on the remote monitoring platform and perform corresponding operations. When a system malfunctions or abnormalities, the alarm log screen will promptly display alarm information, allowing staff to address the fault promptly and ensure stable system operation.

[0040] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A PLC-controlled Internet of Things automation system comprising a conditioning tank (1), an anaerobic tank (2), an aeration tank (3), a sedimentation tank (4), a disinfection tank (5), a medicament barrel (6) and a clean water tank (7), characterized in that: The adjusting pool (1) is provided with a lifting pump (11), the aeration tank (3) is externally provided with a connected air blowing fan (31), the sedimentation tank (4) is provided with a sludge return pump (41), the medicament barrel (6) is provided with a stirring pump (61) and a dosing pump (62), and the PLC control cabinet (8) is further provided with a PLC programmable controller (81) and an Internet of Things measurement and control terminal (82) for controlling the lifting pump (11), the air blowing fan (31), the sludge return pump (41), the stirring pump (61) and the dosing pump (62).

2. The PLC-controlled Internet of Things automation system of claim 1, wherein: The PLC control cabinet (8) is provided with a touch screen (83), and the touch screen (83) is provided with a sewage treatment overview picture, an Internet of Things communication setting picture and an alarm record picture.

3. The PLC-controlled Internet of Things automation system of claim 2, wherein: The front end of the adjusting pool (1) is provided with a pretreatment box group (9), the pretreatment box group (9) comprises a main box body (91) and a grid filter screen (92), the grid filter screen (92) is installed in the main box body (91) and is rotationally connected with the main box body (91), and a blowdown assembly (93) is further fixedly installed in the main box body (91), and a driving member (94) for driving the grid filter screen (92) to overturn is further installed on the rear end surface of the main box body (91).

4. The PLC-controlled Internet of Things automation system of claim 3, wherein: The main box body (91) comprises a box seat (911) and a box shell (912), the box shell (912) is installed on the upper end surface of the box seat (911) and is fixedly connected with the box seat (911), and arc-shaped inner seats (913) are symmetrically arranged on the inner side surface of the box seat (911) and are integrally formed with the box shell (912).

5. The PLC-controlled Internet of Things automation system of claim 4, wherein: The grid filter screen (92) comprises a middle rod frame (921), arc-shaped outer plates (922) and filter screen plates (923), the middle part of the middle rod frame (921) is rotationally installed on the box shell (912), the arc-shaped outer plates (922) are two groups, the two groups of arc-shaped outer plates (922) are respectively fixed on the two ends of the middle rod frame (921), and the filter screen plates (923) are fixedly installed between the two groups of arc-shaped outer plates (922).

6. The PLC-controlled Internet of Things automation system of claim 5, wherein: The blowdown assembly (93) comprises a blowdown pump (931) and a shunt pipe group (932), the blowdown pump (931) is fixedly installed at the bottom of the box shell (912), and the shunt pipe group (932) extends to the outside of the box shell (912) and is connected with the water outlet of the blowdown pump (931).

7. The PLC-controlled Internet of Things automation system of claim 6, wherein: The driving member (94) comprises a machine base (941) and a turnover motor (942), the machine base (941) is fixedly installed on the outer side surface of the box shell (912), and the turnover motor (942) is fixedly installed on the machine base (941) and connected with the middle part of the middle rod frame (921).

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