Reverse osmosis pure water preparation device and process with water quality monitoring feedback function

Abstract

The invention provides a reverse osmosis pure water preparation device and process with water quality monitoring feedback, and relates to the technical field of water purification treatment. A first filter and a second filter are mounted on the bottom mounting frame through bolts, the interior of the first filter is divided into three layers, namely a quartz sand layer, an anthracite layer and a manganese sand layer, the second filter is an activated carbon filter, and the top layer of the second filter is filled with quartz sand to serve as a supporting layer; large-particle impurities and colloids are removed through a quartz sand layer, an anthracite layer and a manganese sand layer of the first filter, organic matter, peculiar smell and residual chlorine are adsorbed through activated carbon of the second filter to complete pretreatment, microorganisms such as bacteria and viruses are intercepted through the ultrafiltration membrane filter module, and the reverse osmosis membrane filter module is used for filtering the microorganisms. And finally, the reverse osmosis membrane filter element is used for deep fine filtration, so that various pollutants in water can be comprehensively removed, and the purity of effluent is remarkably improved, thereby meeting the use requirements of high-purity pure water.

Description

Technical Field

[0001] This invention relates to the field of water purification technology, and in particular to a reverse osmosis pure water preparation device and process with water quality monitoring and feedback. Background Technology

[0002] With the rapid development of society and economy and the continuous improvement of people's living standards, the rational utilization and purification of water resources are receiving increasing attention. In many fields such as industrial production, medical and health care, food processing, and laboratory research, the demand for high-purity water continues to grow. The quality of pure water directly affects product quality, experimental results, and the stability of the production process. Reverse osmosis technology, as a highly efficient water purification method, has been widely used in the field of pure water preparation due to its ability to effectively remove dissolved salts, colloids, microorganisms, organic matter, and other impurities from water. This technology utilizes the selective permeability of a semi-permeable membrane, allowing water molecules to pass through the membrane under external pressure, while most pollutants are retained, thus achieving deep water purification. To meet the requirements for pure water preparation efficiency and quality in different scenarios, a reverse osmosis pure water preparation device with water quality monitoring and feedback was designed.

[0003] In the existing technology, the filtration system of some pure water preparation devices is not perfect. There are often problems such as single filtration links or insufficient connection between layers. Some devices rely on only a single type of filter for treatment, which limits the purity of the output water and makes it difficult to meet the use requirements of high-purity pure water. Some devices use multi-stage filtration, but the targeting of each filtration link is not strong, the purification effect is not ideal, and it is difficult to stably produce high-purity pure water. Summary of the Invention

[0004] This invention relates to a reverse osmosis pure water preparation device and process with water quality monitoring and feedback, in order to solve the technical problems mentioned in the background art.

[0005] In a first aspect, the present invention provides a reverse osmosis pure water preparation device and process with water quality monitoring feedback, specifically comprising: a bottom mounting frame; a bracket, a first mounting platform, a second mounting platform, and a mounting plate are bolted onto the bottom mounting frame; an electrical control box is mounted on the first mounting platform; a first filter and a second filter are bolted onto the bottom mounting frame; an inlet pipe is connected to the first filter via a flange; a manual shut-off valve A and an electric butterfly valve A are mounted on the inlet pipe; a connecting pipe connects the first filter and the second filter; a manual shut-off valve B is mounted on the connecting pipe; a booster pump is mounted on the bottom mounting frame; the booster pump is connected to the second filter via a pipe; and a manual shut-off valve C is mounted on the pipe between the booster pump and the second filter; the first filter has three internal layers: a quartz sand layer, an anthracite layer, and a manganese sand layer; the second filter is an activated carbon filter; the top layer of the second filter is filled with quartz sand as a support layer, and the bottom layer is filled with granular activated carbon.

[0006] Furthermore, the electrical control box integrates a PLC controller, and an ultrafiltration membrane filter module is mounted on a bracket. The bracket is also equipped with fixing straps, and the ultrafiltration membrane filter module is securely mounted on the bracket using these straps. The ultrafiltration membrane filter module is equipped with an inlet, a product water outlet, and a concentrate outlet. The pressurization pump is connected to the inlet of the ultrafiltration membrane filter module via a pipe, and a manual shut-off valve D and a swing check valve A are installed on the pipe between the pressurization pump and the inlet of the ultrafiltration membrane filter module. The ultrafiltration membrane filter module uses a hollow fiber ultrafiltration membrane.

[0007] Furthermore, a concentrate discharge pipe is connected to the concentrate outlet of the ultrafiltration membrane filter module, and a delivery pipe is connected to the product water outlet of the ultrafiltration membrane filter module. An electric butterfly valve B is installed on the delivery pipe. A treatment tank is installed on the second mounting platform, and a top cover is installed on the upper end of the treatment tank by bolts. The delivery pipe is connected to the top cover.

[0008] Furthermore, a visual level tube is installed on the processing tank, and a manual ball valve is connected to the lower end of the visual level tube. A level alarm is installed on the manual ball valve.

[0009] Furthermore, a water quality detection sensor is installed on the treatment tank, and a wastewater discharge pipe is connected to the lower end of the treatment tank. A treatment agent addition pipe and a cleaning agent addition pipe are installed on the top cover. Solenoid valves are installed on both the treatment agent addition pipe and the cleaning agent addition pipe. The water quality detection sensor integrates a TDS detection probe, a pH detection probe, and a residual chlorine detection probe. Its detection data is transmitted to the PLC controller in real time. When the detection value exceeds the preset range, the PLC controller automatically opens the corresponding solenoid valve to add the treatment agent or cleaning agent in a quantitative manner.

[0010] Furthermore, a water outlet pipe is installed at the lower end of the treatment tank, and a manual butterfly valve A is installed on the water outlet pipe. A pump is installed on the bottom mounting bracket. The inlet of the pump is connected to the water outlet pipe, and the outlet of the pump is connected to a filter cartridge through a pipe. The pump is a variable frequency centrifugal pump, and its operating frequency is controlled by a PLC controller. It can automatically adjust the pumping rate according to the liquid level in the treatment tank to avoid dry pumping.

[0011] Furthermore, a manual butterfly valve B, a swing check valve B, and an electric butterfly valve C are installed on the pipeline between the filter cartridge and the outlet of the extraction pump. The electric butterfly valve C is linked with the water quality detection sensor for control. When the water quality in the treatment tank meets the standard, the PLC controller automatically opens the electric butterfly valve C, and otherwise keeps it closed.

[0012] Furthermore, two filter cartridges are provided, connected by an inlet tee and an outlet tee. Hand valves A and B are respectively installed on the inlet and outlet tee. Filter elements are installed inside the filter cartridges, and a top frame is installed on the upper end of the filter elements. A sealing cover is installed on the upper end of the filter cartridge by bolts, and a sealing ring is installed between the sealing cover and the filter cartridge. The filter elements are made of reverse osmosis membrane material. The two filter cartridges can be operated in parallel or switched individually through hand valves A and B. The sealing ring is made of fluororubber, and a mounting base is installed on the top cover.

[0013] Furthermore, a top cylinder is bolted to the mounting base, and a drive motor A is mounted on the top cylinder. A gear is fixedly mounted on the output shaft of drive motor A. A rotatable gear disk is installed inside the top cylinder. The gear on the output shaft of drive motor A meshes with the gear disk. A through hole is provided in the middle of the gear disk, and a universal joint shaft is installed in the through hole. A base plate is mounted on the top cylinder, and two drive motors B are mounted on the base plate. A cam is fixedly mounted on the output shaft of each of the two drive motors B. A connecting plate is connected between each cam and the upper end of the universal joint shaft. A cover plate is bolted to the upper end of the top cylinder, and a turntable is fixedly mounted on the lower end of the gear disk's rotating shaft. Two... The device comprises two rotatable swing plates, each with a base plate mounted on it by screws. The base plate has a sliding groove, and a circular plate is bolted to the lower end of the base plate. The bolt moves within the sliding groove on the base plate. A connecting seat is bolted to the circular plate, and the connecting seat is movably connected to the lower end of a universal joint. Two gearboxes are mounted on the circular plate, each with a stirring rack and a drive motor C. Drive motors A, B, and C are all servo motors, and their operating parameters can be programmed and set via an electrical control box to achieve a multi-dimensional motion combination of 360° rotation, reciprocating oscillation, and high-speed stirring of the stirring rack.

[0014] This invention discloses a reverse osmosis pure water preparation device and process with water quality monitoring feedback, comprising the following steps: 1) Pretreatment stage: Raw water is introduced through the inlet pipe. Manual shut-off valve A and electric butterfly valve A are opened in sequence to allow the raw water to enter the first filter. In the first filter, the raw water passes through multiple layers of quartz sand, anthracite, and manganese sand to remove large particles such as mud and rust, as well as some colloidal substances. Then, it enters the second filter through the connecting pipe and manual shut-off valve B. The second filter further removes organic matter, odors, and residual chlorine by utilizing the adsorption effect of the top quartz sand support layer and the bottom granular activated carbon layer, thus completing the pretreatment. 2) Ultrafiltration purification stage: The pretreated water enters the booster pump through the pipeline. Open the manual shut-off valves C and D, start the booster pump to pressurize the water, and under the control of the swing check valve A, the water is delivered to the ultrafiltration membrane filter module. The water is filtered through the hollow fiber ultrafiltration membrane, which removes bacteria, viruses, macromolecular organic matter and other impurities in the water. The filtered product water enters the delivery pipe through the product water port, and the concentrate is discharged through the concentrate outlet through the concentrate discharge pipe. At this time, the electric butterfly valve B opens and delivers the product water to the treatment tank. 3) Water quality adjustment and monitoring stage: The water entering the treatment tank is kept at a suitable level under the monitoring of the visible liquid level tube. When the liquid level is abnormal, the liquid level alarm is triggered. The water quality detection sensor detects the TDS value, pH value and residual chlorine content in the water in real time and transmits the data to the PLC controller in the electrical control box. If the detected value exceeds the preset range, the PLC controller automatically opens the solenoid valve on the treatment agent addition tube to add the corresponding agent in a quantitative manner. At the same time, drive motors A, B and C are started to fully mix the agent and water through the multi-dimensional moving stirring rack until the water quality meets the standard. 4) Reverse osmosis fine filtration and output stage: After the water quality meets the standards, the PLC controller automatically opens the electric butterfly valve C, opens the manual butterfly valves A and B, and starts the extraction pump. The extraction pump automatically adjusts the pumping rate according to the liquid level in the treatment tank, and delivers water to the filter cartridge through the swing check valve B. The two filter cartridges are controlled by the manual valves A and B to operate in parallel or individually, and deep filtration is performed using the filter element of reverse osmosis membrane material. The final pure water is output through the outlet three-way pipe, completing the pure water preparation process.

[0015] This invention provides a reverse osmosis pure water preparation device and process with water quality monitoring feedback, which has the following beneficial effects: This invention employs a multi-stage filtration system. From the first filter's quartz sand layer, anthracite layer, and manganese sand layer removing large particles and colloids, to the second filter's activated carbon adsorbing organic matter, odors, and residual chlorine, then the ultrafiltration membrane filter module traps bacteria, viruses, and other microorganisms, and finally, the reverse osmosis membrane filter cartridge performs deep filtration, forming a progressive purification process of "pretreatment-ultrafiltration-reverse osmosis". This process can comprehensively remove various pollutants from the water, significantly improve the purity of the effluent, and meet the requirements for high-purity pure water.

[0016] Furthermore, in this invention, a water quality detection sensor integrating TDS, pH, and residual chlorine detection probes can capture water quality data in the treatment tank in real time and transmit it to the PLC controller. When the detected value exceeds the preset range, the system can automatically open the corresponding solenoid valve to add treatment agent or cleaning agent in a quantitative manner. With the multi-dimensional motion of the stirring rack (360° rotation, up-and-down reciprocating swing and high-speed stirring), the agent and water are fully mixed, and the water quality is quickly adjusted to meet the standard. Stable water quality output can be maintained without manual intervention, which significantly improves the treatment efficiency and accuracy.

[0017] Furthermore, in this invention, the extraction pump is a variable frequency centrifugal pump, whose operating frequency is controlled by a PLC controller. It can automatically adjust the extraction rate according to the liquid level in the treatment tank, effectively avoiding dry pumping and extending the service life of the equipment. The electric butterfly valve C is linked with the water quality detection sensor and only opens after the water quality meets the standards, preventing unqualified water from entering subsequent stages. At the same time, the swing check valve can prevent water flow back impact and ensure the stability of system operation. In addition, the two filter cartridges can be connected in parallel or switched individually through a manual valve, which facilitates filter cartridge maintenance and replacement, ensures continuous operation of the device, and reduces downtime.

[0018] Furthermore, the overall structure of this invention is integrated through a bottom mounting bracket, with a reasonable layout of each component. It achieves convenient process control with the help of manual shut-off valves, hand valves, and other components. The visual liquid level tube, combined with a liquid level alarm, can intuitively monitor the liquid level in the treatment tank and provide timely warnings. The filter cartridge adopts a bolt-fixed sealing cover and a replaceable filter element design, combined with a reliable seal of fluororubber sealing rings, which not only facilitates daily maintenance but also ensures filtration efficiency. At the same time, the parameters of each drive motor can be programmed and set through the electrical control box, flexibly adapting to different water quality treatment needs and improving the versatility and practicality of the device. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings of the embodiments will be briefly described below.

[0020] The accompanying drawings described below are only related to some embodiments of the invention and are not intended to limit the invention.

[0021] In the attached diagram: Figure 1 This is a schematic diagram of the overall front structure of the reverse osmosis pure water preparation device with water quality monitoring feedback according to an embodiment of the present invention.

[0022] Figure 2 This is a schematic diagram of the overall rear structure of a reverse osmosis pure water preparation device with water quality monitoring feedback according to an embodiment of the present invention.

[0023] Figure 3 This is a schematic diagram of the treatment tank portion of a reverse osmosis pure water preparation device with water quality monitoring feedback, according to an embodiment of the present invention.

[0024] Figure 4 This is an embodiment of the reverse osmosis pure water preparation device with water quality monitoring feedback. Figure 3 A magnified structural diagram of part A in the middle.

[0025] Figure 5 This is a schematic diagram of the mounting base of the reverse osmosis pure water preparation device with water quality monitoring feedback according to an embodiment of the present invention.

[0026] Figure 6 This is a schematic diagram of the rotating disk portion of a reverse osmosis pure water preparation device with water quality monitoring feedback according to an embodiment of the present invention.

[0027] Figure 7 This is a schematic diagram of the circular plate portion of the reverse osmosis pure water preparation device with water quality monitoring feedback according to an embodiment of the present invention.

[0028] Figure 8 This is a schematic diagram of the filter cartridge portion of a reverse osmosis pure water preparation device with water quality monitoring feedback according to an embodiment of the present invention.

[0029] Figure 9 This is an embodiment of the reverse osmosis pure water preparation device with water quality monitoring feedback. Figure 1 A magnified structural diagram of part B.

[0030] List of reference numerals 1. Bottom mounting bracket; 11. Bracket; 111. Fixing strap; 112. Ultrafiltration membrane filter module; 113. Concentrate discharge pipe; 114. Delivery pipe; 1141. Electric butterfly valve B; 12. First mounting platform; 121. Electrical control box; 13. Second mounting platform; 14. Mounting plate; 2. First filter; 21. Inlet pipe; 211. Manual shut-off valve A; 212. Electric butterfly valve A; 22. Connecting pipe; 221. Manual shut-off valve B; 3. Second filter; 31. Manual shut-off valve C; 4. Booster pump; 41. Manual shut-off valve D; 42. Swing check valve A; 5. Treatment tank; 51. Visual level pipe; 511. Manual ball valve; 512. Level alarm; 52. Water quality sensor; 53. Wastewater discharge pipe; 54. Outlet pipe; 541. Manual butterfly valve A; 55. Top cover; 551 552. Treatment agent addition pipe; 5521. Cleaning agent addition pipe; 5522. Solenoid valve; 56. Mounting base; 561. Top cylinder; 5611. Drive motor A; 562. Gear disc; 563. Turntable; 5631. Swing plate; 564. Seat plate; 5641. Drive motor B; 5642. Cam; 565. Universal joint; 5651. Connecting plate; 566. Cover plate; 567. Base plate; 57. 571. Circular plate; 572. Connecting seat; 573. Drive motor C; 574. Stirring rack; 575. Gearbox; 6. Extraction pump; 61. Swing stop valve B; 62. Electric butterfly valve C; 63. Manual butterfly valve B; 7. Filter cartridge; 71. Inlet tee pipe; 711. Hand valve A; 72. Outlet tee pipe; 721. Hand valve B; 73. Filter element; 731. Top frame; 74. Sealing cover; 75. Sealing ring. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the described embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0032] Please refer to Figures 1 to 9 Example 1: This invention proposes a reverse osmosis pure water preparation device and process with water quality monitoring feedback, comprising: a bottom mounting frame 1; a bracket 11, a first mounting platform 12, a second mounting platform 13, and a mounting plate 14 are bolted onto the bottom mounting frame 1; an electrical control box 121 is mounted on the first mounting platform 12; a first filter 2 and a second filter 3 are bolted onto the bottom mounting frame 1; an inlet pipe 21 is connected to the first filter 2 via a flange; a manual shut-off valve A211 and an electric butterfly valve A212 are mounted on the inlet pipe 21; the first filter... A connecting pipe 22 connects the first filter 2 and the second filter 3. A manual shut-off valve B221 is installed on the connecting pipe 22. A pressure pump 4 is installed on the bottom mounting bracket 1. The pressure pump 4 is connected to the second filter 3 through a pipe. A manual shut-off valve C31 is installed on the pipe between the pressure pump 4 and the second filter 3. The first filter 2 is internally configured with three layers: a quartz sand layer, an anthracite layer, and a manganese sand layer. The second filter 3 is an activated carbon filter. The top layer of the second filter 3 is filled with quartz sand as a support layer, and the bottom layer is filled with granular activated carbon.

[0033] In this embodiment of the invention, a PLC controller is integrated into the electrical control box 121. An ultrafiltration membrane filter module 112 is mounted on the bracket 11, and a fixing strap 111 is installed on the bracket 11. The ultrafiltration membrane filter module 112 is fixedly mounted on the bracket 11 by the fixing strap 111. The ultrafiltration membrane filter module 112 is provided with an inlet, a product water outlet, and a concentrate outlet. The pressurizing pump 4 is connected to the inlet of the ultrafiltration membrane filter module 112 through a pipeline. A manual shut-off valve D41 and a swing check valve A42 are installed on the pipeline between the pressurizing pump 4 and the inlet of the ultrafiltration membrane filter module 112. The ultrafiltration membrane filter module 112 uses a hollow fiber ultrafiltration membrane. A concentrate discharge pipe 1 is connected to the concentrate outlet of the ultrafiltration membrane filter module 112. 13. A delivery pipe 114 is connected to the product water port of the ultrafiltration membrane filter module 112. An electric butterfly valve B1141 is installed on the delivery pipe 114. A treatment tank 5 is installed on the second mounting platform 13. A top cover 55 is bolted to the top of the treatment tank 5. The delivery pipe 114 is connected to the top cover 55. Its function is as follows: The PLC controller in the electrical control box 121 acts as the "brain" of the entire device, undertaking the core control function. It can receive signals transmitted by various sensors and accurately regulate the operating status of equipment such as electric butterfly valve, drive motor, and extraction pump 6 according to the preset program. It realizes intelligent operation such as water quality monitoring feedback and equipment linkage operation, ensuring that the entire pure water preparation process proceeds efficiently according to the set logic. The support 11 is for the ultrafiltration membrane filter module 112. Providing a stable mounting platform, the fixing straps 111 further secure it tightly to the bracket 11, effectively preventing displacement or shaking of the equipment due to water flow impact, vibration, and other factors during operation, ensuring the stability of the ultrafiltration process. The ultrafiltration membrane filter module 112 (using a hollow fiber ultrafiltration membrane) is the core filtration component in the ultrafiltration purification stage. Utilizing the microporous sieving effect of the hollow fiber ultrafiltration membrane, it efficiently intercepts bacteria, viruses, large molecular organic matter, and other impurities in the water, while allowing water molecules and small molecule beneficial substances to pass through, achieving deep purification of the pretreated water quality. This lays a good foundation for water quality adjustment and reverse osmosis fine filtration in the subsequent treatment tank 5. The inlet is the channel through which the pretreated water enters the ultrafiltration membrane filter module 112, and the product water outlet... The ultrafiltration membrane filter module 112 is used to output qualified permeate water and supply water to the subsequent treatment tank 5. The concentrate outlet is responsible for discharging impurities and some concentrated water trapped during the filtration process through the concentrate discharge pipe 113, preventing impurities from accumulating in the module and affecting filtration efficiency. The pipeline between the booster pump 4 and the ultrafiltration membrane filter module 112 is the water flow channel connecting the two, ensuring that the pretreated water can smoothly enter the ultrafiltration system. The manual shut-off valve D41 can manually control the opening and closing of this section of the pipeline, facilitating equipment inspection, maintenance, or process switching. The swing check valve A42 can prevent water from flowing back, preventing water in the ultrafiltration membrane filter module 112 from flowing back to the booster pump 4, protecting the booster pump 4 and the ultrafiltration membrane assembly from back pressure shocks, and extending the service life of the equipment.The concentrate discharge pipe 113 is specifically designed to remove the concentrated water containing impurities discharged from the concentrate outlet of the ultrafiltration membrane filter module 112, preventing the concentrated water from accumulating inside the equipment and causing secondary pollution, thus ensuring the stable filtration performance of the ultrafiltration membrane. The delivery pipe 114 is the channel for transporting the permeate water output from the permeate outlet of the ultrafiltration membrane filter module 112 to the treatment tank 5. The electric butterfly valve B1141 is controlled by a PLC controller and can automatically open or close according to system operating requirements, achieving precise control of permeate water delivery to the treatment tank 5. It can also promptly cut off the water flow when the ultrafiltration system malfunctions or when water supply to the treatment tank 5 needs to be suspended. The treatment tank 5 is the main location for water quality adjustment and monitoring, providing temporary storage and water quality adjustment space for the incoming ultrafiltration permeate water, facilitating real-time monitoring by the water quality sensor 52 and the mixing reaction of the treatment agent. The top cover 55 is bolted to the upper end of the treatment tank 5, serving a sealing function to prevent external pollutants from entering the tank and contaminating the water quality. It also provides an installation interface for components such as the delivery pipe 114 and the treatment agent addition pipe 551.

[0034] In this embodiment of the invention, a visual level tube 51 is installed on the treatment tank 5, and a manual ball valve 511 is connected to the lower end of the visual level tube 51. A level alarm 512 is installed on the manual ball valve 511. A water quality sensor 52 is installed on the treatment tank 5, and a wastewater discharge pipe 53 is connected to the lower end of the treatment tank 5. A treatment agent addition pipe 551 and a cleaning agent addition pipe 552 are installed on the top cover 55. Solenoid valves 5521 are installed on both the treatment agent addition pipe 551 and the cleaning agent addition pipe 552. The water quality sensor 52 integrates a TDS detection probe, a pH detection probe, and a residual chlorine detection probe, and its detection data... The data is transmitted in real time to the PLC controller. When the detected value exceeds the preset range, the PLC controller automatically opens the corresponding solenoid valve 5521 to add the treatment agent or cleaning agent in a measured amount. Its function is as follows: The visible level tube 51 installed on the treatment tank 5 can intuitively display the water level in the tank, allowing operators to observe water volume changes in real time to understand the operating status of the treatment tank 5, providing a direct basis for equipment start-up, shutdown, and parameter adjustment; the manual ball valve 511 connected at its lower end can manually control the connection between the visible level tube 51 and the treatment tank 5, facilitating closure during cleaning or maintenance of the level tube to prevent water leakage from the tank; the liquid level on the manual ball valve 511... The level alarm 512 can sound an alarm when the liquid level in the tank exceeds the safe range, reminding operators to take timely action and prevent abnormal liquid levels from affecting the normal operation of the equipment. The water quality detection sensor 52 on the treatment tank 5 integrates a TDS detection probe, a pH detection probe, and a residual chlorine detection probe, which can comprehensively monitor the total dissolved solids content, pH, and residual chlorine content of the water in the tank. Its detection data is transmitted to the PLC controller in real time to form a closed-loop monitoring system, providing accurate data support for water quality adjustment and ensuring timely response to changes in water quality. The wastewater discharge pipe 53 at the bottom of the treatment tank 5 is used to discharge the wastewater generated after cleaning the tank to prevent accumulation. This affects subsequent processing; the treatment agent addition pipe 551 on the top cover 55 provides a channel for adding treatment agent into the tank, while the cleaning agent addition pipe 552 is used to add cleaning agent into the treatment tank 5. The solenoid valves 5521 on both are controlled by a PLC controller. When the detection value of the water quality detection sensor 52 exceeds the preset range, the PLC controller will automatically open the corresponding solenoid valve 5521 to add the treatment agent or cleaning agent in a quantitative manner, ensuring the accuracy of water quality adjustment and the timeliness of tank cleaning, thereby ensuring that the water output from the treatment tank 5 meets the requirements of subsequent reverse osmosis filtration, and improving the water quality and stability of the entire pure water preparation device.

[0035] In this embodiment of the invention, a water outlet pipe 54 is installed at the lower end of the treatment tank 5, and a manual butterfly valve A541 is installed on the water outlet pipe 54. A pump 6 is installed on the bottom mounting bracket 1. The inlet of the pump 6 is connected to the water outlet pipe 54, and the outlet of the pump 6 is connected to a filter cartridge 7 through a pipe. The pump 6 is a variable frequency centrifugal pump, and its operating frequency is controlled by a PLC controller. It can automatically adjust the pumping rate according to the liquid level in the treatment tank 5 to avoid dry pumping. Its function is: the water outlet pipe 54 installed at the lower end of the treatment tank 5 is the channel for transporting the water in the treatment tank 5 after adjustment to meet the standards to the subsequent filtration stage, providing a water source for the next process of pure water preparation; the manual butterfly valve A541 on the water outlet pipe 54 can manually control the water outlet pipe 54. The on / off switch 4 allows for easy shut-off during equipment maintenance, repairs, or when water delivery needs to be paused, providing flexible control over water flow. The extraction pump 6 on the bottom mounting bracket 1 serves as the power unit, with its inlet connected to the outlet pipe 54. It can extract water from the treatment tank 5 and deliver it to the filter cartridge 7, providing power for the water to enter the deep filtration stage. The extraction pump 6 is a variable frequency centrifugal pump, and its operating frequency is controlled by the PLC controller. It can automatically adjust the pumping rate according to the liquid level in the treatment tank 5, ensuring stable water delivery efficiency and effectively preventing dry pumping due to low liquid level, protecting the pump body from damage, extending the service life of the equipment, and ensuring the smoothness and stability of the entire water delivery process, providing a continuous and suitable water flow for the subsequent deep filtration of the filter cartridge 7.

[0036] In Example 2, based on Example 1, a manual butterfly valve B63, a swing check valve B61, and an electric butterfly valve C62 are installed on the pipe between the filter cartridge 7 and the outlet of the extraction pump 6. The electric butterfly valve C62 is linked to the water quality detection sensor 52 for control. When the water quality in the treatment tank 5 meets the standard, the PLC controller automatically opens the electric butterfly valve C62; otherwise, it remains closed. There are two filter cartridges 7, which are connected by an inlet tee pipe 71 and an outlet tee pipe 72. Manual valves A711 and B721 are installed on the inlet tee pipe 71 and the outlet tee pipe 72, respectively. A filter element 73 is installed inside the filter cartridge 7, and a filter element 73 is installed on the upper end of the filter element 73. The filter cartridge 7 has a top frame 731. A sealing cover 74 is bolted to the upper end of the filter cartridge 7. A sealing ring 75 is installed between the sealing cover 74 and the filter cartridge 7. The filter element 73 uses a reverse osmosis membrane. Two filter cartridges 7 can be operated in parallel or switched individually via hand valves A711 and B721. The sealing ring 75 is made of fluororubber. Its function is as follows: The manual butterfly valve B63 installed on the pipeline between the filter cartridge 7 and the outlet of the extraction pump 6 allows manual control of the flow of this section of pipeline, facilitating water cut-off during equipment maintenance or repair. The swing check valve B61 prevents reverse flow of water, avoiding backflow of water from the filter cartridge 7 to the extraction pump 6, thus protecting the stable operation of the pump body and the filtration system. (Electric...) Butterfly valve C62 and water quality sensor 52 are linked for control. When the water quality in treatment tank 5 meets the standard, the PLC controller automatically opens the electric butterfly valve C62, allowing water to flow into filter cartridge 7. Conversely, it remains closed to prevent substandard water from entering subsequent filtration stages, ensuring that the water quality entering filter cartridge 7 meets the requirements. There are two filter cartridges 7, connected by an inlet tee pipe 71 and an outlet tee pipe 72. The hand valve A711 on the inlet tee pipe 71 and the hand valve B721 on the outlet tee pipe 72 can control the inlet and outlet of the two filter cartridges 7 respectively. By operating these two hand valves, the two filter cartridges 7 can be operated in parallel (to improve filtration efficiency) or switched individually. To facilitate maintenance of individual filter cartridges 7 without affecting overall operation, the filter element 73 inside the filter cartridge 7 is made of reverse osmosis membrane material, which is the core component of deep filtration. It can further remove tiny impurities and ions in the water, improving the purity of the effluent. The top frame 731 at the top of the filter element 73 serves to fix and support the filter element 73, ensuring that the filter element 73 remains stable during the filtration process. The sealing cover 74 installed at the top of the filter cartridge 7 by bolts and the sealing ring 75 installed between the filter cartridge 7 and the filter cartridge 7 can form a reliable seal to prevent unfiltered water from leaking and ensure the filtration effect. At the same time, the fluororubber material has good corrosion resistance and high temperature resistance, can adapt to the filtration environment, and extend the service life of the sealing components.

[0037] In Example 3, based on Examples 1 and 2, a mounting base 56 is installed on the top cover 55. A top cylinder 561 is bolted to the mounting base 56. A drive motor A5611 is installed on the top cylinder 561. A gear is fixedly installed on the output shaft of the drive motor A5611. A rotatable gear disk 562 is installed inside the top cylinder 561. The gear on the output shaft of the drive motor A5611 meshes with the gear disk 562. A through hole is provided in the middle of the gear disk 562, and a universal joint shaft 565 is installed in the through hole. A base plate 564 is installed on the top cylinder 561. Two drive motors B5641 are installed on the base plate 564. A cam 5642 is fixedly installed on the output shaft of each of the two drive motors B5641. The two cams 5642 interact with the universal joint shaft 565. Connecting plates 5651 are connected to the upper ends of shafts 565. A cover plate 566 is bolted to the upper end of the top cylinder 561. A turntable 563 is fixedly mounted to the lower end of the rotating shaft of the gear disc 562. Two rotatable swing plates 5631 are mounted on the turntable 563. A base plate 567 is bolted to the two swing plates 5631. The base plate 567 has a sliding groove, and a circular plate 57 is bolted to the lower end of the base plate 567. The bolt moves within the sliding groove on the base plate 567. A connecting seat 571 is bolted to the circular plate 57, and the connecting seat 571 is movably connected to the lower end of the universal joint shaft 565. Two gearboxes 574 are mounted on the circular plate 57, and a stirring rack 573 is mounted on each of the two gearboxes 574. All four components are equipped with drive motor C572. Drive motors A5611, B5641, and C572 are all servo motors. Their operating parameters can be programmed and set through the control box 121 to achieve a multi-dimensional motion combination of 360° rotation, reciprocating oscillation, and high-speed stirring of the stirring rack 573. The function is as follows: Drive motor A5611, mounted on the top cylinder 561, serves as the power source. The gear on its output shaft meshes with the rotatable gear disk 562 inside the top cylinder 561, driving the gear disk 562 to rotate. Power is then transmitted through components such as the turntable 563 at the lower end of the gear disk 562's shaft, providing power support for the 360° rotation of the stirring rack 573. The universal joint 565 installed in the central through-hole of the gear disk 562 allows for flexible movement. The rotating disc 573, in conjunction with other components, enables multi-dimensional movement of the mixing rack 573. A base plate 564 mounted on the top cylinder 561 provides mounting positions for two drive motors B5641. A cam 5642 on the output shaft of each drive motor B5641 is connected to the upper end of a universal joint 565 via a connecting plate 5651. When the drive motor B5641 operates, the cam 5642 rotates, driving the connecting plate 5651 to move, which in turn causes the universal joint 565 to move up and down, providing power for the reciprocating oscillation of the mixing rack 573. A cover plate 566 at the upper end of the top cylinder 561 seals and protects the internal components, preventing dust and other impurities from entering and affecting the operation of the components. Two rotatable swing plates 5631 mounted on the turntable 563 are connected to the base plate 567.The sliding groove on the base plate 567, combined with the bolt installation method, allows the base plate 567 to move flexibly. The circular plate 57 at the lower end of the base plate 567 is movably connected to the lower end of the universal joint shaft 565 through the connecting seat 571, transmitting the movement of the universal joint shaft 565 to the circular plate 57, driving the circular plate 57 and related components to move. The two gearboxes 574 installed on the circular plate 57 can adjust the output speed and torque of the drive motor C572. The drive motor C572 provides high-speed stirring power for the stirring rack 573, while the gearboxes 574 ensure that the stirring rack 573 stirs at a suitable speed. Since the drive motors A5611, B5641, and C572 are all servo motors, their operating parameters can be programmed and set through the electrical control box 121, which can precisely control the stirring rack 573 to achieve a multi-dimensional motion combination of 360° rotation, up-and-down reciprocating swing, and high-speed stirring. This allows the water in the treatment tank 5 to be fully mixed with the added treatment agent or cleaning agent, accelerating the reaction speed, ensuring the water quality adjustment or cleaning effect, and improving the treatment efficiency and quality of the treatment tank 5. ,

[0038] This invention discloses a reverse osmosis pure water preparation device and process with water quality monitoring feedback, comprising the following steps: 1) Pretreatment stage: Raw water is introduced through inlet pipe 21. Manual shut-off valve A211 and electric butterfly valve A212 are opened in sequence to allow the raw water to enter the first filter 2. The raw water passes through multiple layers of quartz sand, anthracite and manganese sand in the first filter 2 to remove large particles of impurities such as mud and rust and some colloidal substances. Then it enters the second filter 3 through connecting pipe 22 and manual shut-off valve B221. The adsorption effect of the top quartz sand support layer and the bottom granular activated carbon is used to further remove organic matter, odor and residual chlorine in the water, thus completing the pretreatment. 2) Ultrafiltration purification stage: The pretreated water enters the pressurization pump 4 through the pipeline. The manual shut-off valves C31 and D41 are opened, and the pressurization pump 4 is started to pressurize the water. Under the control of the swing check valve A42, the water is delivered to the ultrafiltration membrane filter module 112. The water is filtered by the hollow fiber ultrafiltration membrane, which intercepts bacteria, viruses, macromolecular organic matter and other impurities in the water. The filtered product water enters the delivery pipe 114 through the product water port, and the concentrate is discharged through the concentrate outlet through the concentrate discharge pipe 113. At this time, the electric butterfly valve B1141 is opened to deliver the product water to the treatment tank 5. 3) Water quality adjustment and monitoring stage: The water entering the treatment tank 5 is kept at a suitable level under the monitoring of the visible level tube 51. When the level is abnormal, the level alarm 512 triggers an alarm. The water quality detection sensor 52 detects the TDS value, pH value and residual chlorine content in the water in real time and transmits the data to the PLC controller in the electrical control box 121. If the detected value exceeds the preset range, the PLC controller automatically opens the solenoid valve 5521 on the treatment agent addition tube 551 to add the corresponding agent in a quantitative manner. At the same time, the drive motors A5611, B5641 and C572 are started. The agent and water are fully mixed by the multi-dimensional moving stirring rack 573 until the water quality meets the standards. 4) Reverse osmosis fine filtration and output stage: After the water quality meets the standards, the PLC controller automatically opens the electric butterfly valve C62, opens the manual butterfly valves A541 and B63, and starts the extraction pump 6. The extraction pump 6 automatically adjusts the pumping rate according to the liquid level in the treatment tank 5, and delivers water to the filter cartridge 7 through the swing check valve B61. The two filter cartridges 7 are controlled by the manual valves A711 and B721 to operate in parallel or individually, and deep filtration is performed using the filter element 73 made of reverse osmosis membrane material. The final pure water is output through the outlet tee pipe 72, completing the pure water preparation process.

[0039] The working principle of this embodiment is as follows: First, the raw water enters the pretreatment stage. It is introduced through the inlet pipe 21 and passes through the first filter 2 and the second filter 3 in sequence. The quartz sand layer, anthracite layer and manganese sand layer in the first filter 2 remove large particulate impurities such as silt and rust, as well as some colloidal substances. The second filter 3 uses the adsorption effect of the top quartz sand support layer and the bottom granular activated carbon to further remove organic matter, odor and residual chlorine, completing the initial purification of the raw water. The pretreated water enters the ultrafiltration purification stage. Under the pressure of the booster pump 4, it is transported through the pipeline to the ultrafiltration membrane filter module 112. The hollow fiber ultrafiltration membrane intercepts bacteria, viruses, large molecular organic matter and other impurities in the water. After filtration, the permeate enters the treatment tank 5 through the delivery pipe 114, while the concentrate is discharged through the concentrate discharge pipe 113. During this process, the electric butterfly valve B1141 controls the delivery of the permeate. The water entering the treatment tank 5 undergoes water quality adjustment and monitoring. The visible level pipe 51 displays the liquid level in real time, and the level alarm 512 sounds an alarm when the liquid level is abnormal. The water quality detection sensor 52 monitors the TDS, pH, and residual chlorine content in the water in real time and transmits the data to the PLC controller. When the detected value exceeds the preset range, the PLC controller automatically opens the solenoid valve 5521 on the treatment agent addition pipe 551 or the cleaning agent addition pipe 552 to add the corresponding reagent in a measured amount. Simultaneously, the top cover... Drive motors A5611, B5641, and C572 on tank 55 are started. Through the linkage of gears, gear discs 562, and universal joint shafts 565, the stirring frame 573 achieves multi-dimensional motion, including 360° rotation, reciprocating oscillation, and high-speed stirring, ensuring thorough mixing of the reagent and water until the water quality meets the standards. After the water quality meets the standards, it enters the reverse osmosis fine filtration and output stage. The PLC controller automatically opens the electric butterfly valve C62, and the water in treatment tank 5 is transported to filter cartridge 7 through outlet pipe 54 by the extraction pump 6. The extraction pump 6 is a variable frequency centrifugal pump, and its operating frequency is controlled by the PLC controller according to the liquid level in treatment tank 5. The system automatically adjusts the pumping rate to avoid dry pumping. The two filter cartridges 7 can be operated in parallel or switched individually via hand valves A711 and B721. The internal reverse osmosis membrane filter element 73 performs deep filtration of the water, and the final pure water is output through the outlet tee pipe 72, completing the entire pure water preparation process. During this process, various manual valves (such as manual shut-off valves, hand valves, etc.) can be manually controlled to open and close the pipeline as needed, facilitating equipment maintenance and process switching. The swing-type check valve prevents backflow of water and protects the equipment. The sealing cover 74 and sealing ring 75 ensure the sealing performance of the filter cartridge 7 and guarantee the filtration effect, thereby achieving efficient and stable preparation of high-purity pure water from raw water.

[0040] The following points should be noted in this article: 1. The accompanying drawings of the embodiments of the present invention only involve the structures involved in the embodiments of the present invention; other structures can refer to general designs.

[0041] 2. Where there is no conflict, the embodiments of the present invention and the features thereof can be combined with each other to obtain new embodiments.

[0042] The above are merely specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in the present invention should be included within the scope of protection of the present invention.

Claims

1. A reverse osmosis pure water preparation device with water quality monitoring feedback, comprising: Bottom mounting bracket (1); characterized in that a bracket (11), a first mounting platform (12), a second mounting platform (13) and a mounting plate (14) are bolted onto the bottom mounting bracket (1), an electrical control box (121) is mounted on the first mounting platform (12), a first filter (2) and a second filter (3) are bolted onto the bottom mounting bracket (1), an inlet pipe (21) is connected to the first filter (2) via a flange, a manual shut-off valve A (211) and an electric butterfly valve A (212) are mounted on the inlet pipe (21), and the first filter (2) and the second filter (3) are bolted onto the bottom mounting bracket (1). A connecting pipe (22) is connected between the two filters. A manual shut-off valve B (221) is installed on the connecting pipe (22). A pressure pump (4) is installed on the bottom mounting bracket (1). The pressure pump (4) is connected to the second filter (3) through a pipe. A manual shut-off valve C (31) is installed on the pipe between the pressure pump (4) and the second filter (3). The first filter (2) is internally configured with three layers, namely a quartz sand layer, an anthracite layer and a manganese sand layer. The second filter (3) is an activated carbon filter. The top layer of the second filter (3) is filled with quartz sand as a support layer, and the bottom layer is filled with granular activated carbon.

2. The reverse osmosis pure water preparation device with water quality monitoring feedback according to claim 1, characterized in that, The electrical control box (121) integrates a PLC controller. An ultrafiltration membrane filter module (112) is installed on the bracket (11). A fixing strap (111) is installed on the bracket (11). The ultrafiltration membrane filter module (112) is fixedly installed on the bracket (11) by the fixing strap (111). The ultrafiltration membrane filter module (112) is provided with an inlet, a product water outlet and a concentrate outlet. The pressurizing pump (4) is connected to the inlet of the ultrafiltration membrane filter module (112) through a pipeline. A manual shut-off valve D (41) and a swing stop valve A (42) are installed on the pipeline between the pressurizing pump (4) and the inlet of the ultrafiltration membrane filter module (112). The ultrafiltration membrane filter module (112) adopts a hollow fiber ultrafiltration membrane.

3. The reverse osmosis pure water preparation device with water quality monitoring feedback according to claim 2, characterized in that, The ultrafiltration membrane filter module (112) is connected to a concentrate discharge pipe (113) at the concentrate outlet and a delivery pipe (114) at the product outlet. An electric butterfly valve B (1141) is installed on the delivery pipe (114). A treatment tank (5) is installed on the second mounting platform (13). A top cover (55) is installed on the upper end of the treatment tank (5) by bolts. The delivery pipe (114) is connected to the top cover (55).

4. The reverse osmosis pure water preparation device with water quality monitoring feedback according to claim 3, characterized in that, The processing tank (5) is equipped with a visual level tube (51), and the lower end of the visual level tube (51) is connected to a manual ball valve (511). A level alarm (512) is installed on the manual ball valve (511).

5. A reverse osmosis pure water preparation device with water quality monitoring feedback according to claim 4, characterized in that, The treatment tank (5) is equipped with a water quality detection sensor (52), and the lower end of the treatment tank (5) is connected to a wastewater discharge pipe (53). The top cover (55) is equipped with a treatment agent addition pipe (551) and a cleaning agent addition pipe (552). Solenoid valves (5521) are installed on both the treatment agent addition pipe (551) and the cleaning agent addition pipe (552). The water quality detection sensor (52) integrates a TDS detection probe, a pH detection probe and a residual chlorine detection probe. Its detection data is transmitted to the PLC controller in real time. When the detection value exceeds the preset range, the PLC controller automatically opens the corresponding solenoid valve (5521) to add the treatment agent or cleaning agent in a quantitative manner.

6. A reverse osmosis pure water preparation device with water quality monitoring feedback according to claim 5, characterized in that, The lower end of the treatment tank (5) is equipped with a water outlet pipe (54), and a manual butterfly valve A (541) is installed on the water outlet pipe (54). A pump (6) is installed on the bottom mounting bracket (1). The inlet of the pump (6) is connected to the water outlet pipe (54), and the outlet of the pump (6) is connected to a filter cartridge (7) through a pipe. The pump (6) is a variable frequency centrifugal pump, and its operating frequency is controlled by a PLC controller. It can automatically adjust the pumping rate according to the liquid level in the treatment tank (5) to avoid the occurrence of dry pumping.

7. A reverse osmosis pure water preparation device with water quality monitoring feedback according to claim 6, characterized in that, The filter cartridge (7) and the outlet of the extraction pump (6) are equipped with a manual butterfly valve B (63), a swing stop valve B (61) and an electric butterfly valve C (62). The electric butterfly valve C (62) is linked with the water quality detection sensor (52). When the water quality in the treatment tank (5) meets the standard, the PLC controller automatically opens the electric butterfly valve C (62), otherwise it remains closed.

8. A reverse osmosis pure water preparation device with water quality monitoring feedback according to claim 7, characterized in that, Two filter cartridges (7) are provided. The two filter cartridges (7) are connected by an inlet tee pipe (71) and an outlet tee pipe (72). A hand valve A (711) and a hand valve B (721) are installed on the inlet tee pipe (71) and the outlet tee pipe (72), respectively. A filter element (73) is installed inside the filter cartridge (7). A top frame (731) is installed on the upper end of the filter element (73). A sealing cover (74) is installed on the upper end of the filter cartridge (7) by bolts. A sealing ring (75) is installed between the sealing cover (74) and the filter cartridge (7). The filter element (73) is made of reverse osmosis membrane material. The two filter cartridges (7) can be operated in parallel or switched individually by hand valve A (711) and hand valve B (721). The sealing ring (75) is made of fluororubber material. An installation seat (56) is installed on the top cover (55).

9. A reverse osmosis pure water preparation device with water quality monitoring feedback according to claim 8, characterized in that, A top cylinder (561) is bolted to the mounting base (56), and a drive motor A (5611) is mounted on the top cylinder (561). A gear is fixedly mounted on the output shaft of the drive motor A (5611). A rotatable gear disc (562) is installed inside the top cylinder (561). The gear on the output shaft of the drive motor A (5611) meshes with the gear disc (562). A through hole is provided in the middle of the gear disc (562), and a universal joint shaft (565) is installed in the through hole. The top cylinder (561)... A base plate (564) is installed on the top cylinder (561), and two drive motors B (5641) are installed on the base plate (564). Cams (5642) are fixedly installed on the output shafts of the two drive motors B (5641). Connecting plates (5651) are connected between the two cams (5642) and the upper ends of the universal joint shaft (565). A cover plate (566) is bolted to the upper end of the top cylinder (561). A turntable (563) is fixedly installed at the lower end of the rotating shaft of the gear plate (562). 3) Two rotatable swing plates (5631) are installed on the top. A base plate (567) is installed on the two swing plates (5631) by screws. The base plate (567) is provided with a sliding groove, and a circular plate (57) is installed on the lower end of the base plate (567) by bolts. The bolts move in the sliding groove on the base plate (567). A connecting seat (571) is installed on the circular plate (57) by bolts. The connecting seat (571) is movably connected to the lower end of the universal joint shaft (565). A connecting seat (571) is installed on the circular plate (57). Two gearboxes (574) are equipped with stirring racks (573) and drive motors (572) are installed on both gearboxes (574). The drive motors A (5611), B (5641) and C (572) are all servo motors. Their operating parameters can be programmed and set through the electrical control box (121) to realize the multi-dimensional motion combination of 360° rotation, up and down reciprocating swing and high-speed stirring of the stirring rack (573).

10. A process employing a reverse osmosis pure water preparation device with water quality monitoring feedback as described in claim 9, characterized in that: Includes the following steps: 1) Pretreatment stage: The raw water is introduced through the inlet pipe (21), and the manual shut-off valve A (211) and the electric butterfly valve A (212) are opened in sequence to allow the raw water to enter the first filter (2). The raw water passes through multiple layers of quartz sand, anthracite and manganese sand in the first filter (2) to remove large particles of impurities such as mud and rust and some colloidal substances in the water. Then it enters the second filter (3) through the connecting pipe (22) and the manual shut-off valve B (221). The adsorption effect of the top quartz sand support layer and the bottom granular activated carbon is used to further remove organic matter, odor and residual chlorine in the water to complete the pretreatment. 2) Ultrafiltration purification stage: The pretreated water enters the pressurization pump (4) through the pipeline. The manual shut-off valve C (31) and the manual shut-off valve D (41) are opened, and the pressurization pump (4) is started to pressurize the water. Under the control of the swing stop valve A (42), the water is transported to the ultrafiltration membrane filter module (112). The water is filtered by the hollow fiber ultrafiltration membrane, which intercepts bacteria, viruses, macromolecular organic matter and other impurities in the water. The filtered product water enters the delivery pipe (114) through the product water port, and the concentrate is discharged through the concentrate water port through the concentrate water discharge pipe (113). At this time, the electric butterfly valve B (1141) is opened to transport the product water to the treatment tank (5). 3) Water quality adjustment and monitoring stage: The water entering the treatment tank (5) is kept at a suitable level under the monitoring of the visible liquid level tube (51). When the liquid level is abnormal, the liquid level alarm (512) triggers an alarm. The water quality detection sensor (52) detects the TDS value, pH value and residual chlorine content in the water in real time and transmits the data to the PLC controller in the electrical control box (121). If the detected value exceeds the preset range, the PLC controller automatically opens the solenoid valve (5521) on the treatment agent addition tube (551) to add the corresponding agent in a quantitative manner. At the same time, the drive motor A (5611), drive motor B (5641) and drive motor C (572) are started. The agent and water are fully mixed by the multi-dimensional moving stirring rack (573) until the water quality meets the standard. 4) Reverse osmosis fine filtration and output stage: After the water quality meets the standard, the PLC controller automatically opens the electric butterfly valve C (62), opens the manual butterfly valve A (541) and the manual butterfly valve B (63), and starts the extraction pump (6). The extraction pump (6) automatically adjusts the pumping rate according to the liquid level in the treatment tank (5) and delivers the water to the filter cartridge (7) through the swing stop valve B (61). The two filter cartridges (7) are controlled by the manual valve A (711) and the manual valve B (721) to operate in parallel or individually. The filter cartridge (73) made of reverse osmosis membrane material is used for deep filtration. The pure water obtained is output through the outlet three-way pipe (72) to complete the pure water preparation process.

Images