An ultrafiltration membrane flushing device

Abstract

The utility model relates to ultrafiltration membrane technical field discloses a kind of ultrafiltration membrane flushing device, including mounting seat, the mounting seat top is fixedly connected with ultrasonic cleaning machine, the ultrasonic cleaning machine is internally provided with cleaning basket, the mounting seat outside is fixedly connected with water inlet, the mounting seat outside is fixedly connected with water outlet, the mounting seat outside is provided with filter assembly, the mounting seat outside is provided with circulation component;The filter assembly includes filter bucket, the filter bucket top is fixedly connected with protective cover two, the protective cover two inside is fixedly connected with motor two.In the utility model, by opening water outlet after flushing, let cleaning fluid flow into filter bucket solid-liquid separation, impurity is intercepted when flowing through filter screen, when plugging, motor two is started to drive cleaning brush to clean, cleaning fluid is discharged after purification, finally open discharge port to discharge solid impurities, realize the solid-liquid separation of impurity in cleaning fluid, the automatic cleaning of plugging filter screen and the recovery of permeability.

Description

Technical Field

[0001] This utility model relates to the field of ultrafiltration membrane technology, and in particular to an ultrafiltration membrane flushing device. Background Technology

[0002] Ultrafiltration membranes are key membrane separation technology components in the tap water production process. They are mostly made of high-molecular polymers such as polyethersulfone and polyacrylonitrile, acting like a fine sieve. They can be installed after conventional treatment processes or as a core unit. Driven by pressure, water passes through the membrane pores, trapping impurities such as colloids, bacteria, and viruses on the membrane surface while retaining beneficial minerals and small molecules. The system operates in a cross-flow filtration manner, reducing membrane fouling, extending its lifespan, and is easy to operate with low energy consumption. It is widely used in municipal waterworks upgrades and community-level water supply systems. The flushing device, as a complementary system, is powered by a water pump or high-pressure air source. Through pipes, nozzles, and other components, it forms a system that can adjust water flow parameters. It cleans the membrane surface with clean water or solution to remove contaminants accumulated during ultrafiltration water production, using timed or differential pressure triggering methods, restoring membrane filtration performance. Both systems work together to ensure the efficient operation of the water treatment system.

[0003] During the ultrafiltration membrane flushing process, the filtered cleaning solution is often rich in various impurities. If discharged directly, these pollutants will enter water bodies with the waste liquid, polluting the natural environment. This is especially true when the impurities contain chemical agents or suspended particulate matter, which may disrupt the ecological balance and affect surrounding biodiversity. Simultaneously, the chemical properties and cleaning efficiency of the used cleaning solution have changed due to the contamination of impurities. If reused without treatment, it will not only fail to achieve the desired cleaning effect but may also cause secondary pollution to the cleaned objects due to residual impurities. In this situation, the untreated cleaning solution is discarded, meaning a significant waste of water resources. Especially given the increasing scarcity of water resources, this waste not only increases water costs for businesses but also contradicts the environmental protection concept of sustainable development. Therefore, an ultrafiltration membrane flushing device is proposed to address these problems. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides an ultrafiltration membrane rinsing device, which aims to improve the problems of pollution, reduced effectiveness, and waste of resources caused by direct discharge, reuse, and disposal of used cleaning solution.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: an ultrafiltration membrane flushing device, including a mounting base, an ultrasonic cleaner fixedly connected to the top of the mounting base, a cleaning basket provided inside the ultrasonic cleaner, a water inlet fixedly connected to the outside of the mounting base, a water outlet fixedly connected to the outside of the mounting base, a filter assembly provided on the outside of the mounting base, and a circulation assembly provided on the outside of the mounting base.

[0006] The filtration assembly includes a filter barrel, a protective cover II fixedly connected to the top of the filter barrel, a motor II fixedly connected inside the protective cover II, a rotating rod II fixedly connected to the output end of the motor II, a cleaning brush fixedly connected to the outside of the rotating rod II, a filter screen fixedly connected inside the filter barrel, a discharge port fixedly connected to the bottom of the filter screen, and a water pipe II fixedly connected to the outside of the filter barrel.

[0007] As a further description of the above technical solution:

[0008] The circulation assembly includes a mixing tank, an inlet fixedly connected to the outside of the mixing tank, a protective cover fixedly connected to the top of the mixing tank, a motor fixedly connected inside the protective cover, a rotating rod fixedly connected to the output end of the motor, multiple stirring rods fixedly connected to the outside of the rotating rod, a water pipe fixedly connected to the outside of the mixing tank, and a circulation pump fixedly connected to the top of the mounting base.

[0009] As a further description of the above technical solution:

[0010] The cleaning brush is rotatably connected inside the filter.

[0011] As a further description of the above technical solution:

[0012] One side of the circulation pump is fixedly connected to the outside of the first water pipe, and the other side of the circulation pump is fixedly connected to the outside of the second water pipe.

[0013] As a further description of the above technical solution:

[0014] The outlet is fixedly connected to the outside of the filter tank on the side away from the ultrasonic cleaner, and the inlet is fixedly connected to the outside of the mixing tank on the side away from the ultrasonic cleaner.

[0015] As a further description of the above technical solution:

[0016] The discharge port is fixedly connected to the bottom of the filter barrel, and the rotating rod is rotatably connected inside the filter barrel.

[0017] As a further description of the above technical solution:

[0018] The filter barrel is fixedly connected to the top of the mounting base, and the mixing barrel is fixedly connected to the top of the mounting base.

[0019] As a further description of the above technical solution:

[0020] The rotating rod is rotatably connected inside the mixing tank.

[0021] This utility model has the following beneficial effects:

[0022] 1. In this utility model, an ultrasonic cleaner converts electrical signals into ultrasonic waves through a transducer to remove dirt. During operation, impurities in the ultrafiltration membrane dissolve into the cleaning solution. After rinsing, the outlet valve is opened to allow the cleaning solution to flow into the filter tank for solid-liquid separation. When flowing through the filter screen, impurities are intercepted. When clogged, motor 2 is started to drive the cleaning brush to remove impurities. After purification, the cleaning solution is discharged. Finally, the outlet is opened to discharge solid impurities, thus realizing solid-liquid separation of impurities in the cleaning solution and automatic cleaning and restoration of the permeability of the clogged filter screen.

[0023] 2. In this utility model, before starting the ultrasonic cleaner, the cleaning liquid is injected into the mixing tank through the feed inlet. The motor is started to drive the stirring rod to stir, so that the cleaning liquid is mixed evenly and then transported to the cleaner through the water inlet. After cleaning is completed, the circulation pump is started to allow the cleaning liquid purified by the filter tank to flow back to the mixing tank for recycling. New liquid is added as needed and stirred to maintain the state of the cleaning liquid. This realizes the recycling of the cleaning liquid, reduces the consumption of cleaning liquid, lowers the cost of use, and also reduces waste liquid discharge, which is beneficial to environmental protection. Attached Figure Description

[0024] Figure 1 This is a three-dimensional schematic diagram of an ultrafiltration membrane flushing device proposed in this utility model;

[0025] Figure 2 This is a schematic diagram of the structure of the rotating rod of an ultrafiltration membrane flushing device proposed in this utility model;

[0026] Figure 3 This is a schematic diagram of the filter barrel of an ultrafiltration membrane rinsing device proposed in this utility model;

[0027] Figure 4 This is a schematic diagram of the rotating rod 2 of an ultrafiltration membrane flushing device proposed in this utility model.

[0028] Legend:

[0029] 1. Mounting base; 2. Ultrasonic cleaner; 3. Cleaning basket; 4. Protective cover one; 5. Motor one; 6. Feed inlet; 7. Mixing tank; 8. Rotating rod one; 9. Stirring rod; 10. Water inlet; 11. Water pipe one; 12. Circulating pump; 13. Water outlet; 14. Protective cover two; 15. Motor two; 16. Filter tank; 17. Rotating rod two; 18. Cleaning brush; 19. Filter screen; 20. Discharge port; 21. Water pipe two. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] Reference Figures 1-4 This utility model provides an embodiment of an ultrafiltration membrane flushing device, including a mounting base 1, an ultrasonic cleaner 2 fixedly connected to the top of the mounting base 1, a cleaning basket 3 inside the ultrasonic cleaner 2, an inlet 10 fixedly connected to the outside of the mounting base 1, an outlet 13 fixedly connected to the outside of the mounting base 1, a filter assembly and a circulation assembly on the outside of the mounting base 1. The mounting base 1 is used to stabilize the entire device and connect the various structures into one unit. The ultrasonic cleaner 2 is operated by a controller and uses high-frequency shock waves generated by cavitation effect to efficiently remove contaminants from the surface and pores of the ultrafiltration membrane to restore membrane performance and reduce damage. The cleaning basket 3 is mainly used to support the ultrafiltration membrane element. Its porous structure design allows the cleaning liquid to fully contact the membrane surface. The cleaning liquid enters the mounting base 1 through the inlet 10 and is discharged through the outlet 13. Both the inlet 10 and the outlet 13 need to be controlled by valves. The filter assembly can filter the used cleaning liquid, and the circulation assembly can circulate the cleaning liquid.

[0032] The filter assembly includes a filter barrel 16, a protective cover 14 fixedly connected to the top of the filter barrel 16, a motor 15 fixedly connected inside the protective cover 14, a rotating rod 17 fixedly connected to the output end of the motor 15, a cleaning brush 18 fixedly connected to the outside of the rotating rod 17, a filter screen 19 fixedly connected inside the filter barrel 16, a discharge port 20 fixedly connected to the bottom of the filter screen 19, and a water pipe 21 fixedly connected to the outside of the filter barrel 16. The filter barrel 16 is used to store the cleaning liquid to be filtered. The protective cover 14 is used to ensure the normal operation of the motor 15 inside. The motor 15 is used to drive the normal operation of the filter assembly. The motor 15 drives the rotating rod 17 to rotate, thereby cleaning the filter screen 19. The cleaning brush 18 cleans the filter screen 19 by rotating, keeping its sieve holes unobstructed for normal operation. The filter screen 19 is used to filter impurities in the cleaning liquid. The discharge port 20 is used to discharge impurities, and its switch is controlled by an external valve. The water pipe 21 is used to discharge the filtered cleaning liquid.

[0033] The circulation assembly includes a mixing tank 7, with a feed inlet 6 fixedly connected to the outside of the mixing tank 7. A protective cover 4 is fixedly connected to the top of the mixing tank 7, and a motor 5 is fixedly connected inside the protective cover 4. A rotating rod 8 is fixedly connected to the output end of the motor 5, and multiple stirring rods 9 are fixedly connected to the outside of the rotating rod 8. A water pipe 11 is fixedly connected to the outside of the mixing tank 7, and a circulation pump 12 is fixedly connected to the top of the mounting base 1. The mixing tank 7 is used to store filtered cleaning liquid and clean cleaning liquid. Unused cleaning liquid enters the mixing tank 7 through the feed inlet 6. The protective cover 4 is used to ensure the normal operation of the motor 5. The motor 5 is used to drive the rotating rod 8 to move synchronously. The stirring rods 9 are used to mix the unused cleaning liquid and the used cleaning liquid evenly. The used cleaning liquid enters the mixing tank 7 through the water pipe 11. The circulation pump 12 is used to promote the circulation of the cleaning liquid to ensure that the cleaning liquid in the system is continuously transported along the set path.

[0034] The cleaning brush 18 is rotatably connected inside the filter screen 19. The cleaning brush 18 cleans the sieve holes on the filter screen 19 by rotating inside the filter screen 19.

[0035] One side of the circulation pump 12 is fixedly connected to the outside of water pipe 11, and the other side of the circulation pump 12 is fixedly connected to the outside of water pipe 21. The circulation pump 12 realizes the recycling of the filtered cleaning liquid through water pipe 11 and water pipe 21, thus saving water resources.

[0036] The outlet 13 is fixedly connected to the outside of the filter tank 16 on the side away from the ultrasonic cleaner 2, and the inlet 10 is fixedly connected to the outside of the mixing tank 7 on the side away from the ultrasonic cleaner 2. The outlet 13 is used to discharge the used cleaning liquid from the ultrasonic cleaner 2 to the filter tank 16 for filtration, and the inlet 10 is used to discharge the cleaning liquid inside the mixing tank 7 into the ultrasonic cleaner 2 to complete the rinsing action.

[0037] The discharge port 20 is fixedly connected to the bottom of the filter barrel 16, and the rotating rod 17 is rotatably connected inside the filter barrel 16. The discharge port 20 is used to discharge the impurities in the filter barrel 16, and the filter barrel 16 keeps the filter screen 19 clean by rotating the rotating rod 17.

[0038] The filter barrel 16 is fixedly connected to the top of the mounting base 1, and the mixing barrel 7 is fixedly connected to the top of the mounting base 1. The filter barrel 16 and the mixing barrel 7 can function stably by being fixed to the top of the mounting base 1.

[0039] Rotating rod 8 is rotatably connected inside the mixing tank 7, and the rotating rod 8 mixes the cleaning solution evenly through its rotation.

[0040] Working principle:

[0041] Ultrasonic cleaner 2 converts electrical signals into ultrasonic waves through a transducer. It uses cavitation, acceleration, and direct flow effects to remove dirt from object surfaces. During operation, impurities trapped by the ultrafiltration membrane detach from the membrane and dissolve into the cleaning solution. After rinsing, the operator opens the control valve at outlet 13, allowing the impurity-rich cleaning solution to flow into filter tank 16 under gravity for solid-liquid separation. As the cleaning solution flows through filter screen 19, suspended particles, colloids, and other impurities are intercepted. As the throughput increases, impurities accumulate on the surface of filter screen 19, causing pore blockage and affecting filtration efficiency. At this point, motor 2 15 is started, driving rotating rod 2 17 to rotate, causing cleaning brush 18 to move in a circular motion along the surface of filter screen 19. The mechanical force of the brush bristles removes impurities, restoring the permeability of filter screen 19. The filtered and purified cleaning solution is discharged through water pipe 21. After filtration, outlet valve 20 is opened to discharge solid impurities trapped by filter screen 19, ensuring the cleanliness of the equipment and preparing for the next filtration operation.

[0042] Before starting the ultrasonic cleaner 2, cleaning solution needs to be injected into the mixing tank 7 through the feed inlet 6. Then, the motor 5 is started, and the rotating rod 8 is driven to rotate at a constant speed through the transmission mechanism. This drives the stirring rod 9 to make a circular motion inside the tank. Under the mechanical action of the stirring rod 9, the cleaning solution is violently convectioned to form turbulence, so that different components are quickly and evenly mixed, ensuring uniformity of concentration and stable chemical activity. The mixed cleaning solution is delivered to the ultrasonic cleaner 2 through the open water inlet 10 at the set flow rate and flow. After the cleaning operation is completed, the circulation pump 12 is started. Under its power, the cleaning solution purified by the filter tank 16 flows through the water pipe 21 into the water pipe 11 and returns to the mixing tank 7 for recycling. In order to maintain the cleanliness and efficiency of the cleaning solution, fresh cleaning solution can be added as needed. The stirring rod 9 continuously stirs to ensure that the new and old liquids are fully mixed, ensuring that the cleaning solution is always in the best working state.

[0043] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An ultrafiltration membrane flushing device, comprising a mounting base (1), characterized in that: An ultrasonic cleaner (2) is fixedly connected to the top of the mounting base (1). A cleaning basket (3) is provided inside the ultrasonic cleaner (2). An inlet (10) is fixedly connected to the outside of the mounting base (1). An outlet (13) is fixedly connected to the outside of the mounting base (1). A filter assembly is provided on the outside of the mounting base (1). A circulation assembly is provided on the outside of the mounting base (1). The filter assembly includes a filter barrel (16), a protective cover (14) is fixedly connected to the top of the filter barrel (16), a motor (15) is fixedly connected inside the protective cover (14), a rotating rod (17) is fixedly connected to the output end of the motor (15), a cleaning brush (18) is fixedly connected to the outside of the rotating rod (17), a filter screen (19) is fixedly connected inside the filter barrel (16), a discharge port (20) is fixedly connected to the bottom of the filter screen (19), and a water pipe (21) is fixedly connected to the outside of the filter barrel (16). The circulation assembly includes a mixing tank (7), an inlet (6) is fixedly connected to the outside of the mixing tank (7), a protective cover (4) is fixedly connected to the top of the mixing tank (7), a motor (5) is fixedly connected inside the protective cover (4), a rotating rod (8) is fixedly connected to the output end of the motor (5), a plurality of stirring rods (9) are fixedly connected to the outside of the rotating rod (8), a water pipe (11) is fixedly connected to the outside of the mixing tank (7), and a circulation pump (12) is fixedly connected to the top of the mounting base (1). One side of the circulating pump (12) is fixedly connected to the outside of the first water pipe (11), and the other side of the circulating pump (12) is fixedly connected to the outside of the second water pipe (21); the side of the outlet (13) away from the ultrasonic cleaner (2) is fixedly connected to the outside of the filter bucket (16), and the end of the inlet (10) away from the ultrasonic cleaner (2) is fixedly connected to the outside of the mixing bucket (7).

2. The ultrafiltration membrane flushing device according to claim 1, characterized in that: The cleaning brush (18) is rotatably connected inside the filter (19).

3. The ultrafiltration membrane flushing device according to claim 1, characterized in that: The discharge port (20) is fixedly connected to the bottom of the filter barrel (16), and the rotating rod (17) is rotatably connected inside the filter barrel (16).

4. The ultrafiltration membrane flushing device according to claim 1, characterized in that: The filter barrel (16) is fixedly connected to the top of the mounting base (1), and the stirring barrel (7) is fixedly connected to the top of the mounting base (1).

5. The ultrafiltration membrane flushing device according to claim 1, characterized in that: The rotating rod (8) is rotatably connected inside the mixing tank (7).

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