Flexible AI direct drinking water purification device

Abstract

The invention relates to the technical field of drinking water purification, and discloses a flexible AI direct drinking water purification device, the core is composed of a hollow fiber reverse osmosis membrane, a hollow fiber nanofiltration membrane and a flexible AI, and a reverse osmosis membrane + nanofiltration membrane + AI control process is adopted. Wherein 95%-99% of salt can be removed through the reverse osmosis membrane, divalent salt is removed after concentrated water enters the nanofiltration membrane, and monovalent salt and elements beneficial to human bodies such as Sr (strontium) and Cs (cesium) are reserved; the flexible AI monitors the water quality in real time through an instrument, accurately regulates and controls a two-membrane produced water blending water pump, and obtains the ecological nutrition balance-benefiting drinking water according to a required proportion. Compared with a traditional spiral-wound membrane, the two membranes both have gas washing shaking and backwashing functions, the reverse osmosis membrane end is connected with a raw water pump, a security filter and other components, the nanofiltration membrane end is connected with a reverse osmosis concentrated water tank, a booster pump and other equipment, and the tail ends are both connected into a water producing tank and corresponding ancillary facilities. The pipeline realizes communication and AI control through a valve, the separation efficiency is high, and the device depends on online monitoring and intelligent regulation and control to stably produce ecological nutrition balance-benefiting drinking water.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of drinking water purification, in particular to a flexible AI direct drinking water purification device. BACKGROUND

[0002] Reverse osmosis, also known as reverse osmosis, is a membrane separation technology that separates solvents from solutions driven by pressure difference. The original liquid on one side of the membrane is subjected to pressure, and when the pressure exceeds the osmotic pressure, the solvent will be subjected to reverse osmosis against the natural permeation direction. Thus, the permeate on the low-pressure side of the membrane is obtained, that is, the permeate; the concentrated solution on the high-pressure side is obtained, that is, the concentrated solution.

[0003] In the existing reverse osmosis purification of drinking water, the structure is a roll-type membrane, and there are certain deficiencies in the shunt structure of concentrated water and dilute water. There is no air washing and backwashing process, which leads to membrane clogging. Although chemical cleaning (positive washing) can alleviate the problem, the desalination rate of the membrane gradually decreases after cleaning, resulting in poor treatment effect. Therefore, it is necessary to make corresponding improvements to the membrane structure and treatment process.

[0004] Nanofiltration, also known as nanofiltration, is a membrane separation technology between reverse osmosis and ultrafiltration driven by pressure difference. When the pressure reaches a certain range, the solvent and part of the small molecule solutes can permeate the nanometer-sized pore separation membrane, while the larger molecular solutes, multivalent salts and part of the monovalent salts are retained, thereby realizing selective separation. In the low-pressure side of the membrane, the permeate is obtained, that is, the permeate; the concentrated solution on the high-pressure side is obtained, that is, the concentrated solution.

[0005] In the existing nanofiltration treatment system of drinking water, a roll-type membrane assembly structure is often used, and there are certain limitations in the shunt design. There is a lack of effective control means for membrane pollution. Due to the lack of air washing and backwashing links, pollutants are easily accumulated on the membrane surface and in the flow channel, causing the membrane flux to decrease and the desalination performance to decay. Although chemical cleaning (positive washing) can temporarily restore part of the performance, repeated cleaning often leads to a continuous decrease in the selective separation ability of the membrane, affecting the water quality and long-term stability of the system. Therefore, it is necessary to optimize and improve the structure design of the nanofiltration membrane element and the supporting treatment process to improve its anti-pollution ability and operating efficiency.

[0006] After being treated by the reverse osmosis system, pure water is obtained, and all beneficial components and salts are removed. The nanofiltration system removes 2-valent salts and retains 1-valent salts, effectively retaining beneficial elements such as Sr (rubidium) and Cs (cesium) for the human body. The salt content in single production water is relatively high, and the purity is not high. Therefore, it is necessary to improve the structure and treatment process of the membrane to obtain a device with high removal rate and high nutritional content in the water. SUMMARY

[0007] The present application aims to provide a flexible AI direct drinking water purification device to solve the problems in the background art.

[0008] To achieve the above object, the present application provides the following technical solution: a flexible AI direct drinking water purification device, comprising a hollow fiber reverse osmosis membrane element and a hollow fiber nanofiltration membrane element; One end of the hollow fiber reverse osmosis membrane element is connected to a booster pump, the inlet of the booster pump is connected to a security filter, the inlet of the security filter is connected to a raw water pump, the inlet of the raw water pump is in communication with a raw water tank, and a gas washing device is installed at the membrane inlet to realize the gas washing function. One side of the hollow fiber reverse osmosis membrane element is connected to a water production pipe, the water production pipe is connected to a water production tank, and the water production pipe interface is connected to a backwashing water inlet pipe. One side of the hollow fiber reverse osmosis membrane element is connected to a concentrated water pipe, and the concentrated water pipe is connected to a concentrated water tank. The unique backwashing process of the hollow fiber reverse osmosis membrane element does not degrade the recovery rate of the membrane. One end of the hollow fiber nanofiltration membrane element is connected to a booster pump, the inlet of the booster pump is connected to a security filter, and the inlet of the security filter is connected to a hollow fiber reverse osmosis membrane concentrated water tank. One side of the hollow fiber nanofiltration membrane element is connected to a water production pipe, the water production pipe is connected to a water production tank, and the water production pipe interface is connected to a backwashing water inlet pipe. One side of the hollow fiber nanofiltration membrane element is connected to a concentrated water pipe, and the concentrated water pipe is connected to a drainage system. The unique backwashing process of the hollow fiber nanofiltration membrane element does not degrade the recovery rate of the membrane. The flexible AI direct drinking water purification device comprises a hollow fiber reverse osmosis membrane element and a hollow fiber nanofiltration membrane element, the membrane elements are equidistantly arranged on one side of the rack, the four ends of the membrane elements are symmetrically provided with connectors, three ends are connected to pipelines during operation, gas washing enters from the water inlet, one side of the concentrated water connector on the two sides is connected to the concentrated water pipe, and the other side of the connector is sealed, the water outlet is connected to the water production pipe, backwashing enters from the water outlet, and the effect is better after backwashing and dosing.

[0009] Preferably, the hollow fiber reverse osmosis assembly comprises a membrane shell, and the reverse osmosis membrane filaments are loaded in the membrane shell.

[0010] Preferably, the hollow fiber nanofiltration membrane assembly comprises a membrane shell, and the nanofiltration membrane filaments are loaded in the membrane shell.

[0011] Preferably, the unique backwashing process of the two kinds of hollow fiber membranes effectively guarantees the desalination rate and recovery rate of the membranes.

[0012] Preferably, the two hollow fiber membrane filaments are evenly distributed in the membrane shell, and a circular tube is communicated at the center and communicated with one side of the water production pipe.

[0013] Preferably, the water inlet of the two hollow fiber membrane elements is provided with an air washing process, which effectively removes the membrane surface pollutants and scale by shaking the membrane filaments.

[0014] Preferably, the unique design idea of the two hollow fiber membranes facilitates transportation, is elegant and generous, and has interchangeability.

[0015] Preferably, the flexible AI system realizes unattended operation, and the running record results and phenomena are accurate and error-free.

[0016] The design idea of the present application makes the pipeline of the whole direct drinking water purification device form a hollow fiber reverse osmosis membrane series path and a nanofiltration membrane parallel path. After the raw water is shunted, it is uniformly distributed by the water inlet, so that the filtering capacity of the membrane system can be fully utilized. The separation degree of concentrated water and fresh water is high. The design of the backwashing system and the air washing system effectively solves the pollution and scaling of the membrane, successfully prolongs the service life of the membrane. The hollow fiber membrane structure is suitable for the characteristics of fast fresh water flow rate. The concentrated water is discharged through the high concentrated water outlet, further improving the aggregation degree of ions in the concentrated water. The aggregation degree of the concentrated water is increased, and the residual ions in the corresponding fresh water output are less, and the purity is further improved. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 The process flow chart of the direct drinking water purification device of the present application is shown in the figure. Figure 2 The process flow chart of the direct drinking water purification device of the present application is shown in the figure. Figure 3 The structure schematic diagram of the hollow fiber reverse osmosis membrane element of the present application is shown in the figure. Figure 4 The structure schematic diagram of the hollow fiber nanofiltration membrane element of the present application is shown in the figure. Figure 5 The air washing process flow chart of the present application is shown in the figure. Figure 6 The structure schematic diagram of the device automatic control cabinet of the present application is shown in the figure.

[0018] Figure 7 The flexible AI control chart of the present application is shown in the figure.

[0019] In the figure: 101, inlet water motor proportional regulating valve; 102, raw water tank liquid level instrument; 144, raw water tank; 103, raw water pump inlet valve group; 104, raw water pump; 105, raw water pump outlet valve group; 106, security filter inlet pressure instrument; 107, security filter; 108, security filter pressure instrument; 109, security filter outlet pressure instrument; 145, booster pump; 110, hollow fiber reverse osmosis membrane inlet valve group; 111, hollow fiber reverse osmosis membrane element; 112, hollow fiber reverse osmosis membrane system inter-stage pressure instrument; 113, hollow fiber reverse osmosis membrane system pressure instrument; 114, hollow fiber reverse osmosis membrane system flushing valve group; 115, hollow fiber reverse osmosis membrane system concentrated water flow instrument; 116, hollow fiber reverse osmosis membrane system pressure regulating valve; 117, hollow fiber reverse osmosis membrane system concentrated water tank; 133, hollow fiber reverse osmosis membrane system fresh water flow instrument; 134, pure water tank liquid level instrument; 135, pure water tank; 147, self-cleaning filter; 148, hollow fiber reverse osmosis membrane element; 146, booster pump; 118, hollow fiber nanofiltration membrane system inlet pressure instrument; 119, hollow fiber nanofiltration membrane system inlet valve group; 120, hollow fiber nanofiltration membrane element; 121, hollow fiber nanofiltration membrane system product water pressure instrument; 122, hollow fiber nanofiltration membrane system product water flow instrument; 123, hollow fiber nanofiltration membrane system concentrated water pressure instrument; 124, hollow fiber nanofiltration membrane system concentrated water flow instrument; 125, hollow fiber nanofiltration membrane system pressure regulating valve group; 126, hollow fiber nanofiltration membrane system flushing valve group; 127, hollow fiber nanofiltration membrane system concentrated water drainage system; 128, hollow fiber nanofiltration membrane system product water tank; 129, product water tank liquid level instrument; 130, nutrient water blending water pump water inlet valve group; 131, nutrient water blending water pump; 132, nutrient water blending water pump water outlet valve group; 136, pure water blending water pump water inlet valve group; 137, pure water blending water pump; 138, pure water blending water pump water outlet valve group; 139, beneficial water product water tank; 140, beneficial water liquid level instrument; 141, water supply pump inlet valve group; 142, water supply pump; 143, water supply pump outlet valve group; 149, electronic descaling instrument; 201, mechanical filter; 202, security filter; 203, charge balance scale inhibition device; 204, hollow fiber reverse osmosis system; 205, hollow fiber reverse osmosis system product water tank; 206, hollow fiber nanofiltration system; 207, hollow fiber nanofiltration system product water tank; 208, ecological nutrient beneficial water; 209, user; 210, hollow fiber nanofiltration system drainage system; 301, water inlet of hollow fiber nanofiltration membrane element; 302, concentrated water outlet 1 of hollow fiber nanofiltration membrane element; 303, concentrated water outlet 2 of hollow fiber nanofiltration membrane element; 304, product water outlet of hollow fiber nanofiltration membrane element; 401, concentrated water outlet 1 of hollow fiber reverse osmosis membrane element; 402, product water outlet of hollow fiber reverse osmosis membrane element; 403, water inlet of hollow fiber reverse osmosis membrane element; 404, concentrated water outlet 2 of hollow fiber reverse osmosis membrane element;501, Roots blower; 502, oil-water separator; 503, air filter; 504, outlet pressure instrument; 601, button; 602, fixing piece; 603, terminal; 604, switch; 605, PLC; 606, lifting lug; 607, frequency converter; 608, contactor; 609, thermal relay; 610, coil; 611, circuit breaker. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0021] Please refer to Figures 1-7 , a flexible AI direct drinking water purification device is shown in the figure, which includes a raw water tank 144, the raw water tank 144 is connected with an external water source at an inlet, a liquid level instrument 102 is installed at the upper part for control, an outlet is connected with a raw water pump 104, the outlet of the raw water pump 104 is provided with an inlet and outlet valve group and a pressure instrument 106, the outlet of the raw water pump 104 is connected with a security filter 107, the outlet of the security filter 107 is connected with a booster pump 145, the outlet of the booster pump is connected with an electronic descaling instrument 149, Ca 2+ , Mg 2+ ions in the water passing through the electronic descaling instrument carry negative charges, effectively preventing the combination with sulfate ions and carbonate ions, successfully solving the problem of no or reduced fouling of the membrane operation, the electronic descaling instrument 149 is connected with a hollow fiber reverse osmosis membrane system, the hollow fiber reverse osmosis membrane system is provided with a membrane element 111, an inter-stage pressure instrument 112, a system pressure instrument 113, a pressure regulating valve 116, a flushing valve 114, a concentrated water flow meter 115, a product water flow meter 133, etc., the product water outlet of the hollow fiber reverse osmosis membrane system is connected with a product water tank 135, a liquid level instrument 134 is installed at the upper part, the concentrated water outlet of the hollow fiber reverse osmosis membrane system is connected with the product water tank, and a liquid level instrument 117 is installed at the upper part.

[0022] In the hollow fiber nanofiltration membrane system, a self-cleaning filter 147 is provided, the water source comes from the concentrated water tank of the hollow fiber reverse osmosis membrane system, the concentrated water of the hollow fiber reverse osmosis membrane system is recycled twice, the self-cleaning filter 147 is connected with a booster pump 146, the outlet of the booster pump 146 is provided with an electronic descaling instrument 149, Ca 2+ , Mg 2+Plasma carries a negative charge, effectively preventing its combination with sulfate and carbonate ions, thus successfully addressing the issue of non-scaling or reduced scaling during membrane operation. The electronic descaling device is connected to a hollow fiber nanofiltration membrane system at its outlet. The hollow fiber nanofiltration membrane system includes a nanofiltration membrane element 120, a permeate flow meter 122, a permeate pressure meter 121, a concentrate pressure meter 123, a concentrate flow meter 124, a pressure regulating valve group 125, and a flushing valve group 126. The concentrate from the hollow fiber nanofiltration membrane system is discharged directly into the drainage system 127, while the permeate is collected in the permeate tank 128, controlled by a level gauge 129 installed at the top.

[0023] The hollow fiber nanofiltration membrane system's product water tank 128 is equipped with a blending system at its outlet, as is the hollow fiber reverse osmosis membrane system's outlet. The hollow fiber nanofiltration membrane system's product water tank 128 is connected to a blending water pump 131, which is equipped with a frequency converter. The frequency converter controls the blending water volume by controlling the frequency through a flexible AI algorithm. The hollow fiber reverse osmosis membrane system's product water tank 135 is connected to a blending water pump 137, which is also equipped with a frequency converter. The frequency converter controls the blending water volume by controlling the frequency through a flexible AI algorithm. The blended water is finally mixed into the product water tank 139, which is controlled by a liquid level gauge 140 installed on top. The product water tank 139's outlet is equipped with a water supply pump 142, which delivers the water to the point of use.

[0024] The reverse osmosis membrane element is mainly formed by encapsulating hollow fiber membrane filaments and PVDF membrane shell. The membrane element is equipped with an inlet 301, a concentrate inlet 302, a concentrate inlet 303, and a product water inlet 304. The air washing inlet enters from the inlet 301. The two concentrate inlets have the same function and can be selected for convenient installation according to the actual situation.

[0025] Nanofiltration membrane elements are mainly formed by encapsulating hollow fiber membrane filaments and PVDF membrane shells. The membrane element is equipped with an inlet 403, a concentrate inlet 401, a concentrate inlet 404, and a product water inlet 402. The air washing inlet enters from the inlet 403. The two concentrate inlets have the same function and can be selected for convenient installation according to the actual situation.

[0026] The PLC cabinet's incoming line connects to a 380V power supply, while the outgoing line connects to various power consumption points and control points of the device. Through program control, it achieves unattended operation and a high degree of automation, and records the operating status in real time through the integration of automation and flexible AI.

[0027] The flexible AI control process involves analyzing the permeate water quality of the hollow fiber reverse osmosis system (701) and the hollow fiber nanofiltration system (702), comparing it with the requirements of the Yiheng nutrient water quality (703), controlling the hollow fiber reverse osmosis permeate water mixing pump through algorithm 705, controlling the hollow fiber nanofiltration permeate water mixing pump through algorithm 706, and then verifying the Yiheng nutrient water quality through algorithm 707. The frequency converter (708) is the actuator.

[0028] Working principle: raw water is sent into the security filter 107 by the raw water pump 104, and then is sent into the reverse osmosis membrane system by the booster pump 145, is introduced into the reverse osmosis membrane element 111 from the water inlet 301 after the raw water pipe, and is filtered by the reverse osmosis membrane element 111, and then the pure fresh water is permeated to the fresh water end through the membrane wire, the fresh water is collected into the fresh water pipe from the fresh water port and flows to the water tank 135, the concentrated water is collected into the concentrated water pipe from the concentrated water port 302 or 303 and is connected to the concentrated water tank, the air washing process is introduced into the shaking membrane wire from the membrane water inlet 301 after the step-by-step filtration of the air source, and the backwashing process is introduced into the backwashing through the water outlet 304 after the dosing filtration.

[0029] The concentrated water of the reverse osmosis system is sent into the self-cleaning filter 147 by the booster pump 146, the raw water is filtered by the self-cleaning filter 147 and then is sent into the nanofiltration membrane system, is introduced into the reverse osmosis membrane element 120 from the water inlet 403 after the raw water pipe, is filtered by the reverse osmosis membrane element 120, and then the pure fresh water is permeated to the fresh water end through the membrane wire, the fresh water is collected into the fresh water pipe from the fresh water port and flows to the water tank 128, the concentrated water is collected into the concentrated water pipe from the concentrated water port 401 or 404 and is discharged to the drainage system, the air washing process is introduced into the shaking membrane wire from the membrane water inlet 403 after the step-by-step filtration of the air source, and the backwashing process is introduced into the backwashing through the water outlet 402 after the dosing filtration.

[0030] It should be noted that the relational terms herein such as first and second and the like are used solely to distinguish one entity or action from another, without necessarily requiring or implying any such actual relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0031] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A flexible AI direct drinking water purification device, characterized in that: The direct drinking water purification device process includes an inlet proportional regulating valve (101), a raw water tank (144), a raw water tank level gauge (102), a raw water pump inlet valve assembly (103), a raw water pump (104), a raw water pump outlet valve assembly (105), a security filter inlet pressure gauge (106), a security filter (107), a security filter pressure gauge (108), a security filter outlet pressure gauge (109), a booster pump (145), a hollow fiber reverse osmosis membrane inlet valve assembly (110), a hollow fiber reverse osmosis membrane element (111), and a hollow fiber reverse osmosis membrane inter-section. Pressure gauge (112), Hollow fiber reverse osmosis membrane system pressure gauge (113), Hollow fiber reverse osmosis membrane system flushing valve assembly (114), Hollow fiber reverse osmosis membrane system pressure regulating valve assembly (116), Hollow fiber reverse osmosis membrane system concentrate flow meter (115), Hollow fiber reverse osmosis membrane system concentrate tank level gauge (117), Hollow fiber reverse osmosis membrane system permeate flow meter (133), Hollow fiber reverse osmosis membrane system permeate tank (135), Hollow fiber reverse osmosis membrane system permeate tank level gauge (134), Self-cleaning filter (147), Self-cleaning filter pressure gauge Table (148), Booster Pump (146), Membrane Inlet Pressure Gauge (118), Membrane Inlet Valve Assembly (119), Hollow Fiber Nanofiltration Membrane Element (120), Hollow Fiber Nanofiltration Membrane System Permeate Pressure Gauge (121), Hollow Fiber Nanofiltration Membrane System Permeate Flow Gauge (122), Hollow Fiber Nanofiltration Membrane System Concentrate Pressure Gauge (123), Hollow Fiber Nanofiltration Membrane System Concentrate Flow Gauge (124), Hollow Fiber Nanofiltration Membrane System Pressure Regulating Valve (125), Hollow Fiber Nanofiltration Membrane System Flushing Valve (126), Drainage Facilities (127), Hollow Fiber Nanofiltration Membrane System Permeate Tank (148), Hollow Fiber Nanofiltration Membrane System Permeate Tank (148), Hollow Fiber Nanofiltration Membrane System Permeate Tank (148), Hollow Fiber Nanofiltration Membrane System Permeate Pressure Gauge (148), Hollow Fiber Nanofiltration Membrane System Permeate Pressure Gauge (149 ... 28) Hollow fiber nanofiltration membrane system water level gauge (129), nutrient water AI blending pump inlet valve assembly (130), nutrient water AI blending pump (131), nutrient water AI blending pump outlet valve assembly (132), pure water AI blending pump inlet valve assembly (136), pure water AI blending pump (137), pure water AI blending pump outlet valve assembly (138), Yiheng water tank (139), Yiheng water level gauge (140), Yiheng water supply pump inlet valve assembly (141), Yiheng water supply pump (142), Yiheng water supply pump outlet valve assembly (143), etc. The hollow fiber nanofiltration membrane element mainly removes divalent salts and retains monovalent salts, effectively retaining elements beneficial to the human body such as Sr (ruthenium) and Cs (cesium); the hollow fiber nanofiltration membrane element contains an inlet (301), a concentrate outlet 1 (302), a concentrate outlet 2 (303), and a product water outlet (304); The hollow fiber reverse osmosis membrane element is mainly effective in removing salt content, with a removal rate of up to 99%; the hollow fiber reverse osmosis membrane element contains a concentrate outlet 1 (401), a product water outlet (402), an inlet water outlet (403), a concentrate outlet 2 (404), etc. The PLC cabinet has an inlet connected to a 380V power supply and an outlet connected to various power consumption points and control points of the water purification device. The PLC cabinet contains a PLC (605), a circuit breaker (611), a contactor (608), a thermal relay (609), a terminal block (603), a switch (604), a button (601), a frequency converter (607), a coil (610), a fixing component (602), a lifting lug (606), etc. The flexible AI control system includes hollow fiber reverse osmosis system water quality analysis (701), hollow fiber nanofiltration system water quality analysis (702), nutrient-balanced water quality analysis (703), flexible AI system (704), flexible AI algorithm A (705), flexible AI algorithm B (706), flexible AI algorithm C (707), water pump frequency inverter (708), etc. The inlet of the raw water tank (144) is connected to the external tap water source. A level gauge (102) is installed on the upper part for control. The outlet is connected to the raw water pump (104). A pressure gauge (106) is installed at the outlet of the raw water pump (104). A security filter (107) is connected to the outlet of the raw water pump (104). A hollow fiber reverse osmosis membrane element (111) is connected to the outlet of the filter (108). The hollow fiber reverse osmosis membrane element (111) is equipped with an air washing function at the inlet, which is mainly achieved through a Roots blower (501), an oil-water separator (502), an air filter (503), and a pressure gauge (504). The concentrate pipe is equipped with a concentrate flow meter (115) and a pressure gauge (113). The hollow fiber nanofiltration membrane element (120) is equipped with an inlet water pressure gauge (118) for air washing function, which is mainly achieved through a Roots blower (501), an oil-water separator (502), an air filter (503), and a pressure gauge (504). The concentrate pipe is equipped with a concentrate flow meter (124) and a pressure gauge (123), and the product water pipe is equipped with a product water flow meter (122) and a pressure gauge (121). The pure aquatic product tank (135) is equipped with a level gauge (134) at the top, and its outlet is connected to the AI ​​blending water pump (137). The nutrient aquatic product tank (128) is equipped with a level gauge (129) at the top, and its outlet is connected to the AI ​​blending water pump (131).

2. The flexible AI direct drinking water purification device according to claim 1, characterized in that: The process mainly combines the novel hollow fiber reverse osmosis membrane and hollow fiber nanofiltration membrane. The hollow fiber reverse osmosis membrane removes 99% of the salt content in the water, and the purified water is collected in the purified water tank (135). The hollow fiber nanofiltration membrane removes divalent salts and retains monovalent salts, effectively retaining elements beneficial to the human body such as Sr (Ce) and Cs (Cesium). The flow rate is controlled by real-time detection of instruments and precise calculation using an AI control system, and the pump frequency is controlled to achieve stable nutrient water quality in the Yiheng water tank (139), which is rich in substances needed by the human body.

3. The flexible AI direct drinking water purification device according to claim 2, characterized in that: The raw water tank (144) serves as an intermediate buffer to prevent the raw water pump (104) from cavitating. The level gauge (102) controls the opening and closing of the inlet valve. The return pipe adjusts the required flow rate. The security filter (107) prevents large particles such as colloidal organic suspended matter from entering the membrane and has a body interception function.

4. According to claim 3, the hollow fiber reverse osmosis membrane element (111) realizes the automatic control process through instruments, and the flow meter detects the flow rate and calculates whether the recovery rate meets the design requirements.

5. In the flexible AI direct drinking water purification device according to claim 4, the air washing process of the hollow fiber reverse osmosis membrane element (111) involves increasing the air pressure through a Roots blower (501), and then passing through a simple oil-water separator (502) and an air filter (503) before entering the membrane to shake the membrane fibers and achieve the process of removing the deposits attached to the membrane fibers. In the air washing process of the hollow fiber nanofiltration membrane element (120), the air pressure is increased through a Roots blower (501), and then passes through a simple oil-water separator (502) and an air filter (503) before entering the membrane to shake the membrane fibers and achieve the process of removing the deposits attached to the membrane fibers.

6. According to claim 5, the hollow fiber reverse osmosis membrane element (111) also has the performance of ultrafiltration, with high desalination rate and high recovery rate of reverse osmosis membrane, and has the operation performance of ultrafiltration; a unique reverse osmosis backwashing, air washing, forward washing and combined washing process has been developed for hollow fiber reverse osmosis membrane.

7. According to claim 6, the hollow fiber nanofiltration membrane element (120) also has the performance of ultrafiltration, possessing the desalination performance and high recovery rate of nanofiltration membrane, and the operation performance of ultrafiltration; a unique reverse osmosis backwashing, air washing, forward washing, and combined washing process has been developed for the hollow fiber nanofiltration membrane.

8. According to claim 7, the hollow fiber reverse osmosis membrane element (111) also has the performance of ultrafiltration, with high desalination rate and high recovery rate of reverse osmosis membrane, and has the operation performance of ultrafiltration; a unique reverse osmosis backwashing, air washing, forward washing and combined washing process has been developed for hollow fiber reverse osmosis membrane.

9. A flexible AI direct drinking water purification device according to claim 8, comprising a hollow fiber reverse osmosis membrane, a hollow fiber nanofiltration membrane, and an AI control system. The hollow fiber reverse osmosis membrane removes 95%-99% of the salt, and the concentrated water from the hollow fiber reverse osmosis membrane enters the hollow fiber nanofiltration membrane (3E) to remove divalent salts and retain monovalent salts, effectively retaining elements beneficial to the human body such as Sr (ruthenium) and Cs (cesium). After precise calculation by the AI ​​control system, the water produced by the hollow fiber reverse osmosis membrane and the hollow fiber nanofiltration membrane are blended to obtain an ecologically nutritious and balanced water.

10. A flexible AI direct drinking water purification device according to claim 9, wherein the inlet of the hollow fiber reverse osmosis membrane system and the hollow fiber nanofiltration membrane system is equipped with an electronic descaling device (149), and the Ca in the water passing through the electronic descaling device is... 2+ Mg 2+ Plasma carries a negative charge, which effectively prevents it from combining with sulfate and carbonate ions, successfully addressing the issue of non-scaling or reduced scaling during membrane operation.

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