Wastewater pipe type membrane treatment system with self-cleaning and anti-fouling functions

Abstract

The utility model discloses a wastewater pipe type membrane processing system with self -cleaning and anti -incrustation function, aims at providing a wastewater pipe type membrane processing system can prevent incrustation effectively, and its technical scheme main points are, a wastewater pipe type membrane processing system with self -cleaning and anti -incrustation function, including conditioning water tank, anti -incrustation pretreatment module, high -efficient pipe type membrane subassembly, water production buffer tank, pulse self -cleaning module and intelligent control module, the liquid outlet of conditioning water tank is passed through the feed pump and anti -incrustation pretreatment module's liquid inlet intercommunication, the liquid outlet of anti -incrustation pretreatment module and high -efficient pipe type membrane subassembly's liquid inlet intercommunication, the water production end of high -efficient pipe type membrane subassembly and water production buffer tank intercommunication, still be connected with pulse self -cleaning module on high -efficient pipe type membrane subassembly, anti -incrustation pretreatment module includes the casing, is equipped with high -frequency electromagnetic field generator and several layers parallel distribution's magnetized fairlead in the casing, the magnetized fairlead inside is embedded with permanent magnet.

Description

Technical Field

[0001] This utility model relates to the field of tubular membrane equipment, specifically to a wastewater tubular membrane treatment system with self-cleaning and anti-scaling functions. Background Technology

[0002] Tubular membrane technology is widely used in wastewater treatment due to its advantages such as large membrane area, high treatment flux, and strong resistance to shock loads. However, when treating wastewater containing high levels of calcium, magnesium, and sulfates, which are prone to scaling, inorganic scale layers easily form on the membrane surface. At the same time, organic pollutants and microorganisms also adhere to the membrane surface, forming complex fouling, which leads to a rapid decline in membrane flux and requires frequent chemical cleaning.

[0003] Existing solutions have significant drawbacks: First, while traditional chemical cleaning can temporarily restore membrane flux, the chemicals corrode the membrane material, shortening its lifespan, and the resulting cleaning wastewater requires secondary treatment, increasing environmental costs. Second, some systems use only backflushing or ultrasonic cleaning methods, which have limited effectiveness in removing stubborn scale and deep-seated contaminants. Third, there is a lack of design to inhibit scaling at its source; systems only passively address contamination after it occurs, resulting in poor system stability and frequent maintenance. Therefore, developing a tubular membrane treatment system that combines anti-scaling pretreatment with efficient self-cleaning capabilities is crucial to solving these problems. Summary of the Invention

[0004] The purpose of this invention is to provide a wastewater tubular membrane treatment system with self-cleaning and anti-scaling functions. It has the advantages of significantly reducing membrane fouling, extending membrane life, and improving system operational stability through anti-scaling pretreatment.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution: A wastewater tubular membrane treatment system with self-cleaning and anti-scaling functions includes a conditioning tank, an anti-scaling pretreatment module, a high-efficiency tubular membrane module, a permeate buffer tank, a pulse self-cleaning module, and an intelligent control module. The outlet of the conditioning tank is connected to the inlet of the anti-scaling pretreatment module via a feed pump. The outlet of the anti-scaling pretreatment module is connected to the inlet of the high-efficiency tubular membrane module. The permeate end of the high-efficiency tubular membrane module is connected to the permeate buffer tank. A pulse self-cleaning module is also connected to the high-efficiency tubular membrane module. The anti-scaling pretreatment module includes a housing containing a high-frequency electromagnetic field generator and several layers of parallel-distributed magnetized guide plates. Permanent magnets are embedded within the magnetized guide plates.

[0006] Further configuration: The concentrate end of the high-efficiency tubular membrane module is connected to a concentrate discharge valve.

[0007] Further configuration: The pulse self-cleaning module includes a gas-liquid mixing tank, a pulse gas-liquid mixing pump, and a distributor. The liquid outlet of the gas-liquid mixing tank is connected to the distributor through the pulse gas-liquid mixing pump, and the output end of the distributor is connected to one end of the tubular membrane module.

[0008] Further configuration: The intelligent control module is electrically connected to the feed pump, the high-frequency electromagnetic field generator, and the pulse gas-liquid mixing pump, respectively.

[0009] Further configuration: The conditioning water tank is equipped with a pH sensor, a temperature sensor, and a stirrer. The pH sensor and the temperature sensor are both electrically connected to the intelligent control module. The top of the conditioning water tank is equipped with a reagent dosing port, and an electromagnetic metering valve is installed at the reagent dosing port. The electromagnetic metering valve is electrically connected to the intelligent control module.

[0010] Further configuration: The high-efficiency tubular membrane module is also equipped with a waste heat recovery module, which includes a plate heat exchanger installed on the water production end pipe of the high-efficiency tubular membrane module. The cold water inlet of the plate heat exchanger is connected to a cold water tank, and the hot water outlet of the plate heat exchanger is connected to a hot water storage tank.

[0011] Further configuration: The inlet and outlet of the plate heat exchanger are equipped with temperature sensors and flow regulating valves, which are electrically connected to the intelligent control module.

[0012] In summary, this utility model has the following beneficial effects: 1. Anti-scaling pretreatment module achieves source control: The high-frequency electromagnetic field and the magnetized flow guide plate work together to change the crystallization characteristics of scale ions in the water, transforming the hard scale layer into loose flocs that are easy to remove. At the same time, the conditioning tank precisely adjusts the water quality parameters, reducing the generation and adhesion of scale substances from the source and reducing the fundamental risk of membrane fouling.

[0013] 2. Highly efficient self-cleaning mechanism: Pulse gas-liquid mixing cleaning uses pulse pressure to break the binding force of pollutants, deeply removing stubborn scale and complex pollution. It also uses produced water as the cleaning water source, eliminating the need for additional chemical agents and avoiding chemical corrosion and secondary pollution.

[0014] 3. Intelligent control enhances operational stability: Through real-time monitoring of the system's operating status by multiple sensors, the intelligent control module automates and starts the cleaning process on demand, avoiding the lag and subjectivity of manual judgment; at the same time, it supports remote monitoring and fault early warning, reducing the workload of maintenance personnel and improving system management efficiency. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings.

[0016] Figure 1This is a schematic diagram of the overall structure of a wastewater tubular membrane treatment system with self-cleaning and anti-scaling functions. Figure 2 This is a schematic diagram of the internal structure of the anti-scaling pretreatment module in a wastewater tubular membrane treatment system with self-cleaning and anti-scaling functions.

[0017] In the diagram, 1. Conditioning water tank; 2. Anti-scaling pretreatment module; 22. Shell; 23. High-frequency electromagnetic field generator; 24. Magnetized guide plate; 25. Permanent magnet; 3. High-efficiency tubular membrane module; 4. Product water buffer tank; 5. Pulse self-cleaning module; 51. Gas-liquid mixing tank; 52. Pulse gas-liquid mixing pump; 53. Diverter; 6. Intelligent control module; 7. Feed pump; 8. Concentrate discharge valve; 9. pH sensor; 10. Temperature sensor; 11. Agitator; 12. Chemical dosing port; 13. Electromagnetic metering valve; 14. Waste heat recovery module; 141. Plate heat exchanger; 142. Cold water tank; 143. Hot water storage tank; 15. Temperature sensor; 16. Flow regulating valve. Detailed Implementation

[0018] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings.

[0019] The technical solution adopted in this utility model is: a wastewater tubular membrane treatment system with self-cleaning and anti-scaling functions, such as... Figure 1 and Figure 2 As shown, the system includes a conditioning water tank 1, an anti-scaling pretreatment module 2, a high-efficiency tubular membrane module 3, a product water buffer tank 4, a pulse self-cleaning module 5, and an intelligent control module 6. The conditioning water tank 1 is equipped with a pH sensor 9, a temperature sensor 10, and a stirrer 11. Both the pH sensor 9 and the temperature sensor 10 are electrically connected to the intelligent control module 6. A chemical dosing port 12 is located on the top of the conditioning water tank 1, and an electromagnetic metering valve 13 is installed at the chemical dosing port 12. The electromagnetic metering valve 13 is electrically connected to the intelligent control module 6. The outlet of tank 1 is connected to the inlet of anti-scaling pretreatment module 2 via feed pump 7. The outlet of anti-scaling pretreatment module 2 is connected to the inlet of high-efficiency tubular membrane module 3. The product water end of high-efficiency tubular membrane module 3 is connected to the product water buffer tank 4. Anti-scaling pretreatment module 2 includes a shell 22. A high-frequency electromagnetic field generator 23 and several layers of parallel magnetized guide plates 24 are provided inside the shell 22. A permanent magnet 25 is embedded inside the magnetized guide plate 24. The concentrate end of high-efficiency tubular membrane module 3 is connected to a concentrate discharge valve 8.

[0020] The high-efficiency tubular membrane module 3 is also connected to a pulse self-cleaning module 5. The pulse self-cleaning module 5 includes a gas-liquid mixing tank 51, a pulse gas-liquid mixing pump 52, and a distributor 53. The outlet end of the gas-liquid mixing tank 51 is connected to the distributor 53 through the pulse gas-liquid mixing pump 52. The output end of the distributor 53 is connected to one end of the tubular membrane module. The intelligent control module 6 is electrically connected to the feed pump 7, the high-frequency electromagnetic field generator 23, the pulse gas-liquid mixing pump 52, and each valve. The high-efficiency tubular membrane module 3 is also equipped with a waste heat recovery module 14. The waste heat recovery module 14 includes a plate heat exchanger 141 installed on the water production end pipeline of the high-efficiency tubular membrane module 3. The cold water inlet of the plate heat exchanger 141 is connected to a cold water tank 142, and the hot water outlet of the plate heat exchanger 141 is connected to a hot water storage tank 143. The inlet and outlet of the plate heat exchanger 141 are equipped with temperature sensors 15 and flow regulating valves 16, which are electrically connected to the intelligent control module 6.

[0021] Its main working principle is as follows: With the intelligent control module 6 as the core, the wastewater is treated efficiently, the membrane module is protected against scaling, and self-cleaning and maintenance and energy recovery are achieved through the coordinated operation of each module. The wastewater first enters the conditioning tank 1. The pH sensor 9 and temperature sensor 10 in the tank collect water quality data in real time and transmit it to the intelligent control module 6. The intelligent control module 6 accurately controls the opening of the electromagnetic metering valve 13 of the reagent dosing port 12 to add the reagent. At the same time, the stirrer 11 runs continuously to make the reagent and wastewater fully mixed, and adjust the pH value and water quality uniformity of the wastewater to a state suitable for subsequent treatment. After conditioning, the wastewater is pumped by the feed pump 7 into the anti-scaling pretreatment module 2. The intelligent control module 6 activates the high-frequency electromagnetic field generator 23 inside the housing 22 to generate a high-frequency electromagnetic field. This, combined with the stable magnetic field formed by the permanent magnet 25 in the magnetized guide plate 24 inside the housing 22, performs dual magnetization treatment on the wastewater. This transforms the crystallization morphology of easily scale-forming ions such as calcium and magnesium in the wastewater from easily adhering hard crystals into loose flocculent precipitates, reducing the risk of scale formation in the membrane module from the source. Subsequently, the scale-preventing wastewater enters the high-efficiency tubular membrane module 3. Under the action of membrane separation, pollutants are trapped to form concentrated water, thus purifying the wastewater. The permeate then flows into the permeate buffer tank 4 for temporary storage. During this process, the inlet and outlet temperature sensors 15 of the plate heat exchanger 141 on the permeate end pipeline monitor the temperature data in real time and feed it back to the intelligent control module 6. The intelligent control module 6 adjusts the flow regulating valve 16 to efficiently transfer the waste heat in the permeate to the cold water input into the cold water tank 142. The heated hot water flows into the hot water storage tank 143 to achieve energy recovery, while the concentrate retained by the membrane module is finally discharged through the concentrate discharge valve 8. To ensure stable membrane flux, the intelligent control module 6 will periodically or based on operating parameters such as transmembrane pressure difference to activate the pulse self-cleaning module 5. The gas-liquid mixture in the liquid mixing tank 51 is generated into a high-pressure pulse flow by the pulse gas-liquid mixing pump 52, and then evenly delivered to the membrane module through the distributor 53. The micro-contaminants and loose scale adhering to the membrane surface are peeled off and washed away in an instantaneous impact manner. The contaminants are discharged together with the concentrated water. This cleaning process does not require shutdown. Throughout the operation, the intelligent control module 6 continuously receives data from various monitoring elements and precisely controls the feed pump 7, various generators, pumps and valves through preset programs to achieve fully automated and coordinated operation. This ensures that the system operates stably and efficiently under optimal parameters and reduces the cost of manual intervention.

[0022] The above are merely preferred embodiments of this utility model and are not intended to limit the utility model in any way. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this utility model shall fall within the scope of the utility model's technical solution.

Claims

1. A wastewater tubular membrane treatment system with self-cleaning and anti-scaling functions, characterized in that, The system includes a conditioning water tank (1), an anti-scaling pretreatment module (2), a high-efficiency tubular membrane module (3), a product water buffer tank (4), a pulse self-cleaning module (5), and an intelligent control module (6). The outlet of the conditioning water tank (1) is connected to the inlet of the anti-scaling pretreatment module (2) via a feed pump (7). The outlet of the anti-scaling pretreatment module (2) is connected to the inlet of the high-efficiency tubular membrane module (3). The product water end of the high-efficiency tubular membrane module (3) is connected to the product water buffer tank (4). The high-efficiency tubular membrane module (3) is also connected to the pulse self-cleaning module (5). The anti-scaling pretreatment module (2) includes a housing (22). The housing (22) contains a high-frequency electromagnetic field generator (23) and several layers of parallel magnetized guide plates (24). The magnetized guide plates (24) are embedded with permanent magnets (25).

2. The wastewater tubular membrane treatment system with self-cleaning and anti-scaling functions according to claim 1, characterized in that: The high-efficiency tubular membrane module (3) is connected to a concentrate discharge valve (8) at the concentrate end.

3. A wastewater tubular membrane treatment system with self-cleaning and anti-scaling functions according to claim 2, characterized in that: The pulse self-cleaning module (5) includes a gas-liquid mixing tank (51), a pulse gas-liquid mixing pump (52), and a distributor (53). The liquid outlet of the gas-liquid mixing tank (51) is connected to the distributor (53) through the pulse gas-liquid mixing pump (52), and the output end of the distributor (53) is connected to one end of the tubular membrane module.

4. A wastewater tubular membrane treatment system with self-cleaning and anti-scaling functions according to claim 3, characterized in that: The intelligent control module (6) is electrically connected to the feed pump (7), the high-frequency electromagnetic field generator (23), and the pulse gas-liquid mixing pump (52), respectively.

5. A wastewater tubular membrane treatment system with self-cleaning and anti-scaling functions according to claim 4, characterized in that: The conditioning water tank (1) is equipped with a pH sensor (9), a temperature sensor (10) and a stirrer (11). The pH sensor (9) and the temperature sensor (10) are both electrically connected to the intelligent control module (6). The conditioning water tank (1) is equipped with a reagent dosing port (12) at the top. An electromagnetic metering valve (13) is provided at the reagent dosing port (12). The electromagnetic metering valve (13) is electrically connected to the intelligent control module (6).

6. A wastewater tubular membrane treatment system with self-cleaning and anti-scaling functions according to claim 5, characterized in that: The high-efficiency tubular membrane module (3) is also provided with a waste heat recovery module (14). The waste heat recovery module (14) includes a plate heat exchanger (141) installed on the water production end pipe of the high-efficiency tubular membrane module (3). The cold water inlet of the plate heat exchanger (141) is connected to a cold water tank (142), and the hot water outlet of the plate heat exchanger (141) is connected to a hot water storage tank (143).

7. A wastewater tubular membrane treatment system with self-cleaning and anti-scaling functions according to claim 6, characterized in that: The plate heat exchanger (141) is equipped with a temperature sensor (15) and a flow regulating valve (16) at both its inlet and outlet, which are electrically connected to the intelligent control module (6).

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