Water purification equipment control system

Abstract

The utility model relates to the technical field of water purification equipment, and provides a water purification equipment control system which comprises a PLC main control module, the PLC main control module is connected with a power supply module, a touch screen data display parameter setting module and a remote monitoring module, the PLC main control module is connected with a water production system module, and the water production system module comprises a raw water monitoring and dosing module. The raw water monitoring and dosing module is connected with the mechanical coagulation module, the mechanical coagulation module is connected with the sedimentation and sludge discharge module, the sedimentation and sludge discharge module is connected with the filter system module, the filter system module is connected with the disinfection and sterilization module, and the disinfection and sterilization module is connected with the purified water storage module. The liquid level monitoring module is connected with the water production system start-stop control module, and the purified water storage module is connected with the water supply module. According to the utility model, each link in the water purification process can be monitored, and the running state of each link can be automatically controlled according to the monitoring result, so that the water purification equipment control system can realize unattended operation and can run stably and reliably.

Description

Technical Field

[0001] The utility model relates to the technical field of water purification equipment, in particular to a control system for water purification equipment. Background Art

[0002] A water purification device is a device for producing pure water, and most of them adopt the reverse osmosis process. Reverse osmosis is a physical method without phase change to desalt and remove salt from saline water at room temperature. Water purification devices are widely used in: domestic drinking, chemical industry, medical treatment, aquaculture, planting, food, beverage, etc.

[0003] A water purification device usually includes multiple water treatment devices. In the water treatment process, there are processes such as water supply, flocculation, sedimentation, filtration, disinfection, and water supply. The current control system for water purification equipment is difficult to effectively monitor each process and automatically adjust the monitored state, requiring manual participation and having a low degree of automation. Summary of the Utility Model

[0004] In order to overcome the defects of the prior art pointed out above, the utility model provides a control system for water purification equipment, which can realize the monitoring of each link in the water purification process and automatically control the operation state of each link according to the monitoring results, enabling the control system of the water purification equipment to achieve unattended operation and stable and reliable operation.

[0005] To solve the above technical problems, the technical solution of the utility model is as follows:

[0006] A control system for water purification equipment includes a PLC main control module, the PLC main control module is connected to a power module, a touch screen data display parameter setting module, and a remote monitoring module. The PLC main control module is also connected to a water production system module. The water production system module includes a raw water monitoring and dosing module, the raw water monitoring and dosing module is connected to a mechanical coagulation module, the mechanical coagulation module is connected to a sedimentation and sludge discharge module, the sedimentation and sludge discharge module is connected to a filtration system module, the filtration system module is connected to a disinfection and sterilization module, the disinfection and sterilization module is connected to a purified water storage module, a liquid level monitoring module is arranged in the purified water storage module, the liquid level monitoring module is connected to a start-stop control module of the water production system, the purified water storage module is also connected to a water supply module, and a monitoring and control module is arranged on the water supply module.

[0007] As an improved technical solution, the raw water monitoring and dosing module includes a raw water flow monitoring sensor and a raw water quality monitoring sensor, and the raw water flow monitoring sensor and the raw water quality monitoring sensor are connected to a raw water lift pump and a dosing metering pump.

[0008] As an improved technical solution, the sediment discharge module includes a coagulation sedimentation time controller and a sediment sludge thickness monitoring sensor, and both the coagulation sedimentation time controller and the sediment sludge thickness monitoring sensor are connected to the sludge discharge pump.

[0009] As an improved technical solution, the filtration system module includes a front and rear pressure signal acquisition module of the filtration system and a post-filtration effluent water quality monitoring module, and both the front and rear pressure signal acquisition module of the filtration system and the post-filtration effluent water quality monitoring module are connected to the automatic backwashing control module of the filtration system.

[0010] As an improved technical solution, the front and rear pressure signal acquisition module of the filtration system includes a front pressure signal acquisition sensor of the filtration system and a rear pressure signal acquisition sensor of the filtration system;

[0011] The post-filtration effluent water quality monitoring module includes a water quality monitoring sensor;

[0012] The automatic backwashing control module of the filtration system includes a filtration inlet valve, a filtration outlet valve, a backwashing valve, a flushing water source valve, and a flushing time control module.

[0013] As an improved technical solution, the disinfection and sterilization module includes a disinfectant metering control module and an ultraviolet sterilization control module.

[0014] As an improved technical solution, the monitoring and control module includes a water supply pressure monitoring module, and the water supply pressure monitoring module is connected to a water supply variable frequency constant pressure control module;

[0015] The monitoring and control module further includes a water supply start-stop module, the water supply start-stop module is connected to the water supply pressure monitoring module and the liquid level monitoring module, and the water supply start-stop module is also connected to an alarm module.

[0016] After adopting the above technical solutions, the beneficial effects of the present utility model are as follows:

[0017] By setting up a PLC main control module, the PLC main control module serves as the control center of the water purification equipment control system to control the operation of each module. The PLC main control module is connected to a power supply module, a touch screen data display parameter setting module, and a remote monitoring module. The power supply module powers the water purification equipment control system, the touch screen data display parameter setting module can perform human-machine interaction to set parameter values, and the remote monitoring module can remotely monitor the operation status of the water purification equipment control system;

[0018] The PLC main control module is also connected to the water treatment system module. The water treatment system module includes a raw water monitoring and dosing module. Through the raw water monitoring and dosing module, the chemical dosing amount can be automatically adjusted according to the monitored raw water quality and flow rate, ensuring the effect of subsequent coagulation reaction and the water quality treatment effect. The raw water monitoring and dosing module is connected to the mechanical coagulation module. Through the mechanical coagulation module, the raw water and the added reaction chemicals can be mixed to increase the flocculation effect of the raw water. The mechanical coagulation module is connected to the sedimentation and sludge discharge module. Through the sedimentation and sludge discharge module, the coagulation sedimentation time and the thickness of the deposited sludge can be controlled, and according to the sedimentation time or the sludge thickness situation, the sludge is discharged through the sludge discharge pump. The sedimentation and sludge discharge module is connected to the filtration system module. Through the filtration system module, the settled water can be filtered, and backwashing actions are carried out according to the filtration resistance or the water quality of the filtered water in the filtration system module. The filtration system module is connected to the disinfection and sterilization module. Through the disinfection and sterilization module, the filtered purified water can be disinfected and sterilized to ensure that the effluent water quality meets the national standards. The disinfection and sterilization module is connected to the purified water storage module. The purified water is stored through the purified water storage module. A liquid level monitoring module is provided in the purified water storage module. The liquid level monitoring module is connected to the start-stop control module of the water treatment system. Through the liquid level monitoring module, the amount of purified water in the purified water storage module can be monitored in real time. When the purified water level is higher than the highest setting, a signal can be transmitted to the start-stop control module of the water treatment system, and the water treatment system is controlled to stop working through the start-stop control module of the water treatment system. When the purified water level drops to the set height, the start-stop control module of the water treatment system controls the water treatment system to restart water treatment, thereby realizing the automatic and stable operation of the purified water equipment control system. The purified water storage module is also connected to the water supply module. A monitoring and control module is provided on the water supply module. The purified water stored in the purified water storage module is transported to the water-using unit through the water supply module. The pressure value of the water supply module can be detected through the monitoring and control module. When the pressure value of the water supply module exceeds the set value, the water supply of the water supply module is stopped through the water supply start-stop module. At the same time, when the liquid level monitoring module detects that the water level in the purified water storage module is lower than the lowest set value, the water supply start-stop module stops the water supply of the water supply module, and at the same time, an alarm is given through the alarm module to remind the user to detect the equipment. Thus, through the above structure, the operating states of all links of the purified water equipment can be monitored and recorded in real time, and the operating states of all links can be automatically controlled and adjusted according to the set logic, with interlock control function, protection and alarm function, and remote monitoring function, realizing unattended operation of the system and ensuring the stable and reliable operation of the entire purified water equipment control system.

[0019] In summary, the present utility model provides a purified water equipment control system, which can realize the monitoring of each link in the purified water process and automatically control the operating states of each link according to the monitoring results, enabling the purified water equipment control system to achieve unattended operation and operate stably and reliably. Brief Description of the Drawings

[0020] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on the structures shown in these drawings. In addition, in the drawings, the components or parts are not necessarily drawn according to the actual scale.

[0021] Figure 1 It is the control diagram of the present invention;

[0022] Figure 2 It is the control diagram of the raw water monitoring and dosing module of the present invention;

[0023] Figure 3 It is the control diagram of the sedimentation and sludge discharge module of the present invention;

[0024] Figure 4 It is the control diagram of the filtration system module of the present invention;

[0025] Figure 5 It is the control diagram of the disinfection and sterilization module of the present invention;

[0026] Reference numerals:

[0027] 1. PLC main control module, 2. Power supply module, 3. Touch screen data display and parameter setting module, 4. Remote monitoring module, 5. Water production system module, 6. Raw water monitoring and dosing module, 601. Raw water flow monitoring sensor, 602. Raw water quality monitoring sensor, 603. Raw water lift pump, 604. Dosing metering pump, 7. Mechanical coagulation module, 8. Sedimentation and sludge discharge module, 801. Coagulation sedimentation time controller, 802. Sediment sludge thickness monitoring sensor, 803. Sludge discharge pump, 9. Filtration system module, 901. Filtration system front and back pressure signal acquisition module, 9011. Filtration system front pressure signal acquisition sensor, 9012. Filtration system back pressure signal acquisition sensor, 902. Filtration post-treatment water quality monitoring module, 9021. Water quality monitoring sensor, 903. Filtration system automatic backwashing control module, 9031. Filtration inlet valve, 9032. Filtration outlet valve, 9033. Backwashing valve, 9034. Flushing water source valve, 9035. Flushing time control module, 10. Disinfection and sterilization module, 1001. Disinfectant metering control module, 1002. Ultraviolet sterilization control module, 11. Clean water storage module, 12. Liquid level monitoring module, 13. Water production system start-stop control module, 14. Water supply module, 15. Monitoring and control module, 1501. Water supply pressure monitoring module, 1502. Water supply variable frequency constant pressure control module, 1503. Water supply start-stop module, 1504. Alarm module. Detailed implementation manners

[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0029] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present utility model are only used to explain the relative position relationship and movement conditions between components in a specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.

[0030] At the same time, the meaning of "and / or" or "and / or" appearing throughout the text is that it includes three solutions. Taking "A and / or B" as an example, it includes solution A, or solution B, or a solution that satisfies both A and B at the same time.

[0031] In addition, the descriptions such as "first" and "second" in the present utility model are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement it. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present utility model.

[0032] Combined with Figures 1-5 As shown, a water purification equipment control system includes a PLC main control module 1. By setting the PLC main control module 1, the PLC main control module 1 serves as the control center of the water purification equipment control system to control the operation of each module. The PLC main control module 1 is connected to a power supply module 2, a touch screen data display parameter setting module 3, and a remote monitoring module 4. The power supply module 2 supplies power to the water purification equipment control system. Through the touch screen data display parameter setting module 3, human-machine interaction can be carried out to set parameter values. Through the remote monitoring module 4, the operation status of the water purification equipment control system can be remotely monitored;

[0033] The PLC main control module 1 is also connected to the water treatment system module 5. The water treatment system module 5 includes a raw water monitoring and dosing module 6. Through the raw water monitoring and dosing module 6, the chemical dosing amount can be automatically adjusted according to the monitored raw water quality and flow rate, ensuring the effect of subsequent coagulation reaction and the water quality treatment effect. The raw water monitoring and dosing module 6 is connected to the mechanical coagulation module 7. Through the mechanical coagulation module 7, the raw water and the added reaction chemicals can be mixed to enhance the flocculation effect of the raw water. The mechanical coagulation module 7 is connected to the sedimentation and sludge discharge module 8. Through the sedimentation and sludge discharge module 8, the coagulation sedimentation time and the thickness of the deposited sludge can be controlled, and according to the sedimentation time or the sludge thickness, the sludge is discharged through the sludge discharge pump 803. The sedimentation and sludge discharge module 8 is connected to the filtration system module 9. Through the filtration system module 9, the settled water can be filtered, and backwashing is performed according to the filtration resistance or the water quality of the filtered effluent in the filtration system module 9. The filtration system module 9 is connected to the disinfection and sterilization module 10. Through the disinfection and sterilization module 10, the filtered purified water can be disinfected and sterilized to ensure that the effluent water quality meets the national standards. The disinfection and sterilization module 10 is connected to the purified water storage module 11. The purified water is stored through the purified water storage module 11. A liquid level monitoring module 12 is provided in the purified water storage module 11. The liquid level monitoring module 12 is connected to the water treatment system start-stop control module 13. Through the liquid level monitoring module 12, the amount of purified water in the purified water storage module 11 can be monitored in real time. When the purified water level is higher than the highest setting, a signal can be transmitted to the water treatment system start-stop control module 13 to control the water treatment system to stop working through the water treatment system start-stop control module 13. When the purified water level drops to the set height, the water treatment system start-stop control module 13 controls the water treatment system to restart water treatment, thereby realizing the automatic and stable operation of the purified water equipment control system. The purified water storage module 11 is also connected to the water supply module 14. A monitoring and control module 15 is provided on the water supply module 14. The purified water stored in the purified water storage module 11 is transported to the water-using unit through the water supply module 14. The pressure value of the water supply module 14 can be detected through the monitoring and control module 15. When the pressure value of the water supply module 14 exceeds the set value, the water supply of the water supply module 14 is stopped through the water supply start-stop module 1503. At the same time, when the liquid level monitoring module 12 detects that the water level in the purified water storage module 11 is lower than the lowest set value, the water supply start-stop module 1503 stops the water supply of the water supply module 14, and at the same time, an alarm is given through the alarm module 1504 to remind the user to check the equipment. Thus, through the above structure, the operating status of each link of the purified water equipment can be monitored and recorded in real time, and the operating status of each link can be automatically controlled and adjusted according to the set logic, with interlocking control function, protection and alarm function, and remote monitoring function, realizing unattended operation of the system and ensuring the stable and reliable operation of the entire purified water equipment control system.

[0034] Combined Figures 1-2As shown in the figure, the raw water monitoring and dosing module 6 includes a raw water flow monitoring sensor 601 and a raw water quality monitoring sensor 602. The raw water flow monitoring sensor 601 and the raw water quality monitoring sensor 602 are connected to the raw water lift pump 603 and the dosing metering pump 604. The flow rate of the raw water is detected by the raw water flow monitoring sensor 601, and the signal is transmitted to the PLC main control module 1. The PLC main control module 1 controls the rotation speed of the raw water lift pump 603 to achieve a constant flow function. The water quality of the raw water is detected by the raw water quality monitoring sensor 602, and in combination with the monitored raw water flow rate, the dosing metering pump 604 is controlled to add an appropriate amount of coagulant, and the addition amount can be automatically adjusted according to the flow rate and water quality.

[0035] Combined with Figure 1 and Figure 3 As shown in the figure, the sedimentation and sludge discharge module 8 includes a coagulation sedimentation time controller 801 and a sediment sludge thickness monitoring sensor 802. The coagulation sedimentation time controller 801 and the sediment sludge thickness monitoring sensor 802 are both connected to the sludge discharge pump 803. The coagulation sedimentation time can be adjusted by the coagulation sedimentation time controller 801 so that the flocs after the reaction of the raw water with the coagulant can precipitate into sludge. The thickness of the sludge sedimentation can be detected by the sediment sludge thickness monitoring sensor 802. When the thickness of the sludge sedimentation reaches the set value or the coagulation sedimentation time reaches the set value, taking the one that reaches the standard first, the sludge discharge pump 803 is started and the precipitated sludge is discharged. By monitoring the sludge sedimentation situation in two ways, the sludge can be discharged in time to ensure the purification quality of the water quality.

[0036] Combined with Figure 1 and Figure 4 As shown in the figure, the filtration system module 9 includes a pressure signal acquisition module 901 before and after the filtration system and a filtered water quality monitoring module 902. The pressure signal acquisition module 901 before and after the filtration system and the filtered water quality monitoring module 902 are both connected to the automatic backwashing control module 903 of the filtration system. The pressure before and after the filtration system module 9 can be collected by the pressure signal acquisition module 901 before and after the filtration system, and the resistance of the filtration system module 9 is automatically calculated. When it is monitored that the resistance value before and after the filtration system module 9 exceeds the expected set value, the automatic backwashing control module 903 of the filtration system is started to perform the backwashing action of the filtration system module 9. The filtered water quality parameter of the filtration system module 9 can be monitored by the filtered water quality monitoring module 902. When the water quality of the filtered water of the filtration system module 9 drops to the set minimum level, the automatic backwashing control module 903 of the filtration system is started to perform the backwashing action. Thus, the double monitoring of the effluent water quality is realized to ensure the water quality.

[0037] Combined with Figure 1 and Figure 4As shown in the figure, the pressure signal acquisition module 901 before and after the filtration system includes a pressure signal acquisition sensor 9011 before the filtration system and a pressure signal acquisition sensor 9012 after the filtration system. The pressure value before filtration of the filtration system module 9 can be acquired through the pressure signal acquisition sensor 9011 before the filtration system, and the pressure value after filtration of the filtration system module 9 can be acquired through the pressure signal acquisition sensor 9012 after the filtration system. By comparing the pressure value after filtration with the pressure value before filtration, the resistance of the filtration system module 9 is calculated, and the filtration capacity of the filtration system module 9 is determined based on the magnitude of the resistance. When too much impurity adheres to the filtration system module 9;

[0038] The post-filtration water quality monitoring module 902 includes a water quality monitoring sensor 9021. The water quality of the water after filtration is monitored through the water quality monitoring sensor 9021. When the water quality of the effluent is lower than the set minimum level, the automatic backwashing control module 903 of the filtration system is activated for backwashing;

[0039] The automatic backwashing control module 903 of the filtration system includes a filtration inlet valve 9031, a filtration outlet valve 9032, a backwashing valve 9033, a flushing water source valve 9034, and a flushing time control module 9035. The filtration inlet valve 9031, the filtration outlet valve 9032, the backwashing valve 9033, the flushing water source valve 9034, and the flushing time control module 9035 are all connected to the backwashing controller. When a backwashing operation is performed, the backwashing controller controls the filtration inlet valve 9031 and the filtration outlet valve 9032 to close. At the same time, the backwashing valve 9033 and the flushing water source valve 9034 are opened to perform a backwashing operation on the filtration system module 9. Meanwhile, the flushing time control module 9035 controls the set time of backwashing. When the backwashing time reaches the set value, the backwashing valve 9033 and the flushing water source valve 9034 are closed, and the filtration inlet valve 9031 and the filtration outlet valve 9032 are opened to resume the filtration working state, thereby realizing the automatic backwashing function of the filtration system module 9.

[0040] Combined with Figure 1 and Figure 5 As shown in the figure, the disinfection and sterilization module 10 includes a disinfectant metering control module 1001 and an ultraviolet sterilization control module 1002. The input amount of the disinfectant is controlled through the disinfectant metering control module 1001, and the ultraviolet light is controlled through the ultraviolet sterilization control module 1002 for sterilization. Thus, the disinfection and sterilization treatment of the filtered purified water is realized, ensuring that the effluent water quality meets the national standards.

[0041] Combined with Figure 1As shown, the monitoring and control module 15 includes a water supply pressure monitoring module 1501. The water supply pressure monitoring module 1501 is connected to the water supply variable frequency constant pressure control module 1502. Through the water supply pressure monitoring module 1501, the pressure of the water supply pipeline can be monitored, and the water supply operation state can be automatically adjusted by the water supply variable frequency constant pressure control module 1502 to achieve the function of constant pressure water supply;

[0042] The monitoring and control module 15 further includes a water supply start-stop module 1503. The water supply start-stop module 1503 is connected to the water supply pressure monitoring module 1501 and the liquid level monitoring module 12. The water supply start-stop module 1503 is also connected to the alarm module 1504. When the water supply pressure monitoring module 1501 detects that the pressure of the water supply pipeline exceeds the set value, it will transmit the information to the water supply start-stop module 1503. The water supply start-stop module 1503 controls the water supply module 14 to stop water supply to ensure water supply safety. When the liquid level monitoring module 12 monitors that the liquid level in the purified water storage module 11 is lower than the lowest set value, it will also transmit the information to the water supply start-stop module 1503. The water supply start-stop module 1503 controls the water supply module 14 to stop water supply to ensure water supply safety. Thus, double guarantee of water supply safety is achieved. By setting the alarm module 1504, timely alarm can be given to remind the user to check the equipment.

[0043] For easy understanding, the working process of this embodiment is described as follows:

[0044] Combined with Figures 1-5 As shown, first, the entire purified water equipment control system is controlled by the PLC main control module 1. The power supply module 2 supplies power to the entire purified water equipment control system. The touch screen data display parameter setting module 3 sets the operation parameters of the purified water equipment control system. The remote monitoring module 4 monitors the operation state of the entire purified water equipment control system;

[0045] After that, the raw water lift pump 603 of the water treatment system module 5 transports the raw water to the mechanical coagulation module 7. During the transportation process, the raw water flow monitoring sensor 601 and the raw water quality monitoring sensor 602 monitor the raw water flow and raw water quality, and transmit the signals to the PLC main control module 1. The PLC main control module 1 controls the rotation speed of the raw water lift pump 603 to achieve the function of constant flow transportation. At the same time, it controls the dosing metering pump 604 to add an appropriate amount of coagulant to the mechanical coagulation module 7. In the mechanical coagulation module 7, the coagulant reacts with the raw water to form flocs, and the raw water is treated;

[0046] After that, the coagulated solution is transported to the sedimentation and sludge discharge module 8. The coagulation sedimentation time controller 801 can adjust the coagulation sedimentation time, enabling the flocs formed by the reaction of the raw water with the coagulant to precipitate into sludge. The sedimented sludge thickness monitoring sensor 802 can detect the thickness of the sedimented sludge. When the thickness of the sedimented sludge reaches the set value or the coagulation sedimentation time reaches the set value, the sludge discharge pump 803 is turned on to discharge the sedimented sludge.

[0047] The water after sedimentation is transported to the filtration system module 9. The pressure signal acquisition module 901 before and after the filtration system and the filtered water quality monitoring module 902 can collect the pressures before and after the filtration system module 9 and monitor the filtered water quality parameters of the filtration system module 9. When it is detected that the resistance value before and after the filtration system module 9 exceeds the expected set value or the water quality of the filtered water from the filtration system module 9 drops to the set minimum level, the automatic backwashing control module 903 of the filtration system is turned on for backwashing.

[0048] The water after filtration is transported to the disinfection and sterilization module 10. The disinfectant metering control module 1001 controls the input amount of the disinfectant, and the ultraviolet sterilization control module 1002 controls the ultraviolet light for sterilization.

[0049] The water after disinfection and sterilization is transported to the purified water storage module 11. The purified water storage module 11 is connected to the water supply module 14. The water supply module 14 transports the purified water stored in the purified water storage module 11 to the water-using unit. The water supply module 14 is provided with a monitoring and control module 15. The pressure value of the water supply module 14 can be detected through the monitoring and control module 15. When the pressure value of the water supply module 14 exceeds the set value, the water supply of the water supply module 14 is stopped through the water supply start-stop module 1503.

[0050] In addition, a liquid level monitoring module 12 is provided in the purified water storage module 11. When the liquid level monitoring module 12 detects that the water level in the purified water storage module 11 is lower than the lowest set value, the water supply start-stop module 1503 stops the water supply of the water supply module 14. At the same time, an alarm is given through the alarm module 1504 to remind the user to check the equipment, thereby realizing the automatic control of the purified water equipment control system.

[0051] In summary, the present utility model provides a purified water equipment control system, which can realize the monitoring of each link in the purified water process and automatically control the operation status of each link according to the monitoring results, enabling the purified water equipment control system to operate unattended and stably and reliably.

[0052] It should be understood that the use of these embodiments is only for illustrating the present utility model rather than intending to limit the protection scope of the present utility model. In addition, it should also be understood that after reading the technical content of the present utility model, those skilled in the art can make various changes, modifications and / or variations to the present utility model, and all these equivalent forms also fall within the protection scope defined by the appended claims of this application.

Claims

1. A water purification equipment control system, characterized in that: It includes a PLC main control module, which is connected to a power supply module, a touch screen data display parameter setting module and a remote monitoring module. The PLC main control module is also connected to a water treatment system module. The water treatment system module includes a raw water monitoring and dosing module, which is connected to a mechanical coagulation module. The mechanical coagulation module is connected to a sedimentation and sludge discharge module. The sedimentation and sludge discharge module is connected to a filtration system module. The filtration system module is connected to a disinfection and sterilization module. The disinfection and sterilization module is connected to a purified water storage module. A liquid level monitoring module is provided in the purified water storage module, and the liquid level monitoring module is connected to a start-stop control module of the water treatment system. The purified water storage module is also connected to a water supply module, and a monitoring and control module is provided on the water supply module.

2. The control system of a water purification device according to claim 1, wherein: The raw water monitoring and dosing module includes a raw water flow monitoring sensor and a raw water quality monitoring sensor, and the raw water flow monitoring sensor and the raw water quality monitoring sensor are connected to a raw water lift pump and a dosing metering pump.

3. The control system of a water purification device according to claim 1, wherein: The sedimentation and sludge discharge module includes a coagulation sedimentation time controller and a sediment sludge thickness monitoring sensor, and both the coagulation sedimentation time controller and the sediment sludge thickness monitoring sensor are connected to a sludge discharge pump.

4. The control system of a water purification device according to claim 1, characterized in that: The filtration system module includes a pressure signal acquisition module before and after the filtration system and a filtered water quality monitoring module after filtration, and both the pressure signal acquisition module before and after the filtration system and the filtered water quality monitoring module after filtration are connected to an automatic backwashing control module of the filtration system.

5. The control system of a water purification device according to claim 4, characterized in that: The pressure signal acquisition module before and after the filtration system includes a pressure signal acquisition sensor before the filtration system and a pressure signal acquisition sensor after the filtration system; The filtered water quality monitoring module after filtration includes a water quality monitoring sensor; The automatic backwashing control module of the filtration system includes a filtration inlet valve, a filtration outlet valve, a backwashing valve, a flushing water source valve and a flushing time control module.

6. The control system of a water purification device as described in claim 1, characterized in that: The disinfection and sterilization module includes a disinfectant metering control module and an ultraviolet sterilization control module.

7. The control system of a water purification device according to claim 1, characterized in that: The monitoring and control module includes a water supply pressure monitoring module, and the water supply pressure monitoring module is connected to a water supply variable frequency constant pressure control module; The monitoring and control module also includes a water supply start-stop module, and the water supply start-stop module is connected to the water supply pressure monitoring module and the liquid level monitoring module. The water supply start-stop module is also connected to an alarm module.

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