Ultrafiltration water multi-stage treatment equipment

Abstract

The utility model relates to the technical field of ultrafiltration water treatment, in particular to ultrafiltration water multistage treatment equipment which comprises a reaction kettle shell, a feeding machine and a filling machine, mixed water added with lime is contained in the feeding machine, a spiral pipeline is fixedly connected to the interior of the reaction kettle shell, a plurality of protruding blocks are evenly and fixedly connected to the interior of the spiral pipeline, and the protruding blocks are arranged in the reaction kettle shell. Mixed water added with lime is fed into the spiral pipeline through the feeding machine, water flow is made to flow in a turbulent mode through the protruding blocks in the spiral pipeline, the reaction of the lime and impurities is accelerated, the water flows into the first gravity precipitation tank after the reaction, large particles are precipitated, and then the water enters the second gravity precipitation tank through the filter screen to be subjected to secondary precipitation. Then, the water is conveyed to the resin filter through the connecting pipe to remove ions, then is purified through the ultrafiltration filter and finally enters the filling machine through the water outlet pipe to be filled, the multi-stage treatment process solves the problem that the conventional ultrafiltration water quality is hard, hard water scaling is avoided, the water quality is improved, and the service life of equipment is prolonged.

Description

Technical Field

[0001] This utility model relates to an ultrafiltration water treatment device, and more particularly to a multi-stage ultrafiltration water treatment device, belonging to the field of ultrafiltration water treatment technology. Background Technology

[0002] In today's society, with the continuous improvement of people's living standards and the sustained expansion and refinement of industrial production, the demand for high-quality water is increasing daily, whether it's the pursuit of healthy and comfortable water in daily life or the stringent requirements for high-quality process water in industrial production. High-quality water sources have become a key element in ensuring people's healthy lives and maintaining the efficient and stable operation of industrial production.

[0003] However, the ultrafiltration multi-stage water treatment equipment widely used in the market currently exhibits significant shortcomings in addressing water hardness issues. Hardening components such as calcium and magnesium ions in the water cannot be effectively removed during equipment operation. Over time, these ions gradually form scale on the surfaces of various internal components. This internal scaling severely negatively impacts the equipment's lifespan. Furthermore, if the water treated by this equipment still has high hardness, it will cause numerous inconveniences and hazards in daily life.

[0004] Therefore, there is an urgent need to improve an ultrafiltration multi-stage water treatment device to solve the above-mentioned problems. Utility Model Content

[0005] The purpose of this invention is to provide a multi-stage ultrafiltration water treatment device. The feeder first transports the mixed water with added lime to the spiral pipe inside the reactor shell. Inside the spiral pipe, protrusions cause turbulence in the water flow, accelerating the reaction between lime and impurities. The reacted water flows into gravity sedimentation tank one, where large particles of impurities settle. Then, the water passes through a filter screen and enters gravity sedimentation tank two for secondary sedimentation. Next, through a connecting pipe, the water is transported to a resin filter to remove ions, then to an ultrafiltration filter for further purification, and finally enters a filling machine through an outlet pipe for filling. This multi-stage treatment process solves the problem of hard water that is difficult to overcome in conventional ultrafiltration processes, avoids the consequences of hard water scaling, and comprehensively improves various water quality indicators, greatly extending the service life of the equipment.

[0006] To achieve the above objectives, the main technical solutions adopted by this utility model include:

[0007] A multi-stage ultrafiltration water treatment device includes a reactor shell, a feeder, and a filling machine. The feeder contains mixed water with added lime. A spiral pipe is fixedly connected inside the reactor shell. Multiple protrusions are uniformly fixedly connected inside the spiral pipe. The upper end of the spiral pipe corresponds to the output end of the feeder. The lower end of the spiral pipe is connected to a gravity sedimentation tank. A second gravity sedimentation tank is fixedly connected to the other side of the first gravity sedimentation tank. A filter screen is fixedly connected between the first and second gravity sedimentation tanks. A connecting pipe is fixedly connected to the other side of the second gravity sedimentation tank. A resin filter is connected to the other end of the connecting pipe. An ultrafiltration filter is connected to the other side of the resin filter. An outlet pipe is connected to the output end of the ultrafiltration filter and is connected to the filling machine.

[0008] Preferably, a collection funnel 1 is fixedly connected to the lower end of the gravity sedimentation tank 2, and a collection funnel 2 is fixedly connected to the lower end of the gravity sedimentation tank 2. Both the collection funnel 1 and the collection funnel 2 are fixedly connected to a drain pipe 1. Multiple drain pipes 1 are connected to a drain pipe 2. One end of the drain pipe 2 extends to the outside of the reactor shell.

[0009] Preferably, scrapers are rotatably connected inside both the first and second collection funnels. Multiple scrapers are in close contact with the inner walls of the first and second collection funnels respectively. A gear is rotatably connected to the outer wall of the end of the sewage pipe near the scraper. Permanent magnets are installed inside the gear and the scraper respectively. Relying on the interaction of magnetic fields, the gear drives the scraper to rotate synchronously when it rotates under the drive of external force.

[0010] Preferably, multiple gears one mesh with gear two, the lower end of gear two is fixedly connected to a worm gear, a drive motor is provided on one side of gear two, the output end of the drive motor is fixedly connected to a worm, and the worm gear meshes with the worm gear.

[0011] Preferably, the bottom surfaces of both the first and second collection funnels are slidably connected to sealing plugs, the inside of the first drain pipe is slidably connected to a pull rod, the upper end of the pull rod is fixedly connected to the sealing plug, and an electric telescopic rod is provided directly below the pull rod, the output end of the electric telescopic rod is connected to the pull rod.

[0012] Preferably, the output end of the ultrafiltration filter is connected to a backwashing device, which includes a water storage bottle, a backwashing pump, and a solenoid valve. The water storage bottle is connected to the outlet pipe, and the solenoid valve is fixed to the outer wall of the pipe between the water storage bottle and the outlet pipe. The inlet of the backwashing pump is connected to the lower end of the water storage bottle, and the outlet of the backwashing pump is connected to a backwashing pipe, which is connected to the outlet pipe.

[0013] Preferably, a second solenoid valve is connected to the outer wall of the flushing water pipe near the outlet pipe, and a third solenoid valve is fixedly connected to the outer wall of the outlet pipe. The third solenoid valve is located between the first solenoid valve and the second solenoid valve.

[0014] This utility model has at least the following beneficial effects:

[0015] 1. The feeding machine first delivers the mixed water with added lime to the spiral pipe inside the reactor shell. Inside the spiral pipe, the protrusions cause turbulence in the water flow, accelerating the reaction between lime and impurities. The reacted water flows into gravity sedimentation tank one, where large particles of impurities settle. Then, the water passes through a filter screen and enters gravity sedimentation tank two for secondary sedimentation. Next, through a connecting pipe, the water is transported to a resin filter to remove ions, then to an ultrafiltration filter for further purification, and finally enters the filling machine through the outlet pipe for filling. This multi-stage treatment process solves the problem of hard water that is difficult to overcome in conventional ultrafiltration processes, avoids the consequences of hard water scaling, and comprehensively improves various water quality indicators, greatly extending the service life of the equipment.

[0016] 2. Backwashing the equipment effectively removes residual impurities from the filter membrane surface, maintaining its good permeability and ensuring that the treated water consistently meets high-quality requirements. Stable filtration performance provides a reliable water source for subsequent filling machines, ensuring consistent product quality, significantly extending the lifespan of the ultrafiltration filter, reducing equipment replacement frequency, and lowering operating costs. Attached Figure Description

[0017] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0018] Figure 1 This is a schematic diagram of the isometric structure provided by this utility model;

[0019] Figure 2 Schematic diagram of the internal structure of the reactor shell provided by this utility model Figure 1 ;

[0020] Figure 3 Schematic diagram of the internal structure of the reactor shell provided by this utility model Figure 2 ;

[0021] Figure 4 Provided by this utility model Figure 3 A magnified schematic diagram of the structure at point A in the middle;

[0022] Figure 5 Provided by this utility model Figure 3 A magnified schematic diagram of the structure at point B in the middle;

[0023] Figure 6 A cross-sectional schematic diagram provided for this utility model;

[0024] Figure 7 Provided by this utility model Figure 6 A magnified schematic diagram of the structure at point C.

[0025] In the diagram, 1. Reactor shell; 2. Feeder; 3. Filling machine; 4. Spiral pipe; 5. Protrusion; 6. Gravity sedimentation tank one; 7. Gravity sedimentation tank two; 8. Filter screen; 9. Connecting pipe; 10. Resin filter; 11. Ultrafiltration filter; 12. Water outlet pipe; 21. Collection funnel one; 22. Collection funnel two; 23. Sewage pipe one; 24. Sewage pipe two; 31. Scraper; 32. Gear one; 41. Gear two; 42. Turbine; 43. Drive motor; 44. Worm gear; 51. Sealing plug; 52. Pull rod; 53. Electric telescopic rod; 61. Backwashing device; 62. Water storage bottle; 63. Flushing water pump; 64. Solenoid valve one; 65. Flushing water pipe; 71. Solenoid valve two; 72. Solenoid valve three. Detailed Implementation

[0026] The following will describe in detail the implementation of this application with reference to the accompanying drawings and embodiments, so that the implementation process of how this application uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0027] like Figure 1 - Figure 7As shown in the figure, this embodiment provides a multi-stage ultrafiltration water treatment device, including a reactor shell 1, a feeder 2, and a filling machine 3. The feeder 2 contains mixed water with added lime. A spiral pipe 4 is fixedly connected inside the reactor shell 1. Multiple protrusions 5 are uniformly fixedly connected inside the spiral pipe 4. The upper end of the spiral pipe 4 corresponds to the output end of the feeder 2. The feeder 2 fills and transports the mixed water with added lime to the spiral pipe 4 inside the reactor shell 1. After the lime mixes with the water, it can chemically react with impurities such as calcium and magnesium ions in the water to generate precipitates, thereby initially reducing the hardness of the water. The reactor shell 1 provides protection and support for the internal spiral pipe 4 and other components, forming a relatively closed system. The spiral pipe 4 provides a space for water to undergo preliminary chemical reactions and sedimentation. The spiral pipe 4 guides the flow of the mixed water after the addition of lime, and the evenly distributed protrusions 5 inside create turbulence, increasing the contact between the lime and impurities in the water and accelerating the chemical reaction. The lower end of the spiral pipe 4 is connected to a gravity sedimentation tank 6, which receives the water flowing out of the spiral pipe 4. Gravity causes larger particles in the water to settle here, achieving preliminary solid-liquid separation. A gravity sedimentation tank 7 is fixedly connected to the other side of gravity sedimentation tank 6, further settling smaller particles remaining in the water after passing through gravity sedimentation tank 6 and the filter screen 8, improving water clarity and ensuring... The water, after initial sedimentation, is further purified to provide higher-quality influent for subsequent filtration. A filter screen 8 is fixedly connected between gravity sedimentation tank 6 and gravity sedimentation tank 7. The filter screen 8 prevents larger particles from entering gravity sedimentation tank 7 while allowing smaller particles and water to pass through, thus performing initial filtration and graded sedimentation. This allows for the step-by-step treatment of impurities of different particle sizes, making the sedimentation process more orderly and improving sedimentation efficiency. A connecting pipe 9 is fixedly connected to the other side of gravity sedimentation tank 7, and the other end of the connecting pipe 9 is connected to a resin filter 10. The connecting pipe 9 connects gravity sedimentation tank 7 and resin filter 10, transporting the water after two sedimentation processes to the resin filter 10 for further filtration. In the next step, an ultrafiltration filter 11 is connected to the other side of the resin filter 10. The resin filter 10 uses ion exchange resin to remove residual calcium and magnesium ions in the water, further reducing the water hardness and improving the water quality. The output end of the ultrafiltration filter 11 is connected to the outlet pipe 12, which is connected to the filling machine 3. The ultrafiltration filter 11 filters out bacteria, viruses, colloids, and large molecular organic matter in the water through the ultrafiltration membrane, further improving the purity of the water. The pore size of the ultrafiltration membrane can effectively trap these tiny impurities, so that the treated water reaches a higher purity standard and meets the strict requirements of the filling machine 3 for water quality. The filling machine 3 fills the qualified ultrafiltration water into the corresponding containers for storage, transportation, and sale.

[0028] Among them, such as Figure 1 - Figure 7As shown, a collection funnel 21 is fixedly connected to the lower end of gravity sedimentation tank 6, and a collection funnel 22 is fixedly connected to the lower end of gravity sedimentation tank 7. Both collection funnel 21 and collection funnel 22 are fixedly connected to a drain pipe 23. Multiple drain pipes 23 are connected to a drain pipe 24. One end of the drain pipe 24 extends to the outside of the reactor shell 1. The collection funnel 21 collects the impurities settled in gravity sedimentation tank 6. The shape design of the collection funnel 21 allows the impurities to slide down naturally and concentrate at a smaller outlet, which is convenient for connecting to the drain pipe 23, realizing the smooth transport of impurities and guiding the impurities to the drain pipe 23 and drain pipe 24. The impurities collected by multiple drain pipes 23 are discharged to the outside of the reactor shell 1, realizing the separation of impurities from the treatment equipment.

[0029] Furthermore, such as Figure 1 - Figure 7 As shown, scrapers 31 are rotatably connected inside both collecting funnel 1 21 and collecting funnel 22. Multiple scrapers 31 are in close contact with the inner walls of collecting funnel 1 21 and collecting funnel 22, respectively. The scrapers 31 rotate inside collecting funnel 1 21 and collecting funnel 22, scraping off impurities deposited on the inner walls to prevent accumulation and ensure that impurities can be smoothly discharged through the drain pipe, maintaining the efficient collection function of the collecting funnels. A gear 32 is rotatably connected to the outer wall of the drain pipe 1 23 near the scraper 31. The gear 32 and the scraper 31 are respectively installed inside... By installing permanent magnets, the gear 32 rotates under external force, driving the scraper 31 to rotate synchronously. The gear 32, as a transmission medium, rotates under external force and transmits power to the scraper 31 through magnetic coupling with the permanent magnet inside the scraper 31, causing the scraper 31 to rotate. The permanent magnet is installed inside the gear 32 and the scraper 31. As prior art, it is not marked in the figure. A non-contact magnetic connection is formed between the gear 32 and the scraper 31 through magnetic coupling, which can prevent failures caused by impurities entering the mechanical connection parts.

[0030] Furthermore, such as Figure 1 - Figure 7As shown, multiple gears 32 mesh with a gear 41. A turbine 42 is fixedly connected to the lower end of gear 41. A drive motor 43 is located on one side of gear 41. A worm 44 is fixedly connected to the output end of the drive motor 43. The worm 44 meshes with the turbine 42. Gear 41, as an intermediate transmission component, distributes the power transmitted by the turbine 42 to the two meshing gears 32, enabling the two gears 32 to rotate synchronously. This, in turn, drives the scrapers 31 inside the collecting funnels 21 and 22 to work synchronously. The drive motor 43 provides the power source for the entire transmission system. Electrical energy is converted into mechanical energy, outputting rotational power to drive the connected worm 44 to rotate. The worm 44 transmits the rotational motion output by the drive motor 43 to the turbine 42. Through its meshing relationship with the turbine 42, it changes the direction and speed of power transmission. The turbine 42 meshes with the worm 44, receives the power transmitted by the worm 44, and transmits it to the fixedly connected gear 41.

[0031] Among them, such as Figure 1 - Figure 7 As shown, sealing plugs 51 are slidably connected to the lower bottom surfaces of both collecting funnel 1 (21) and collecting funnel 2 (22). A pull rod 52 is slidably connected inside the drain pipe 23. The upper end of the pull rod 52 is fixedly connected to the sealing plug 51. An electric telescopic rod 53 is located directly below the pull rod 52, and its output end is connected to the pull rod 52. Under normal conditions, the sealing plug 51 seals the lower bottom surfaces of collecting funnels 21 and 22, preventing impurities from leaking before the discharge time is reached, ensuring the sedimentation process is undisturbed. When impurities need to be discharged, the sealing plug 51 opens under the action of the pull rod 52, allowing the impurities in the collecting funnels to smoothly enter the drain pipe 23. The electric telescopic rod 53, through its own extension and retraction, provides power to the pull rod 52, thereby controlling the opening and closing of the sealing plug 51. The extension and retraction length and speed can be precisely controlled according to the needs of equipment operation, achieving precise control of the impurity discharge process.

[0032] Among them, such as Figure 1 - Figure 7As shown, the output end of the ultrafiltration filter 11 is connected to a backwashing device 61. The backwashing device 61 includes a water storage bottle 62, a flushing water pump 63, and a solenoid valve 64. The water storage bottle 62 stores water for backwashing the ultrafiltration filter 11. When the ultrafiltration filter 11 is working normally, the water storage bottle 62 stores a certain amount of water. When backwashing is required, it provides a stable water supply to the flushing water pump 63. The flushing water pump 63 provides power to pressurize the water in the water storage bottle 62 and then delivers it to the ultrafiltration filter 11 through the flushing water pipe 65 for backwashing. By applying pressure to the water, the water can flow backward through the filter membrane of the ultrafiltration filter 11 at a certain flow rate, flushing away the trapped impurities from the surface of the filter membrane and discharging them with the water flow. The water storage bottle 62 is connected to the water outlet pipe 12. The solenoid valve 64 is fixed on the outer wall of the pipe between the water storage bottle 62 and the water outlet pipe 12. The inlet of the flushing water pump 63 is connected to the lower end of the water storage bottle 62. The outlet of the flushing water pump 63 is connected to the flushing water pipe 65, which is connected to the water outlet pipe 12. The solenoid valve 64 controls the flow of water between the water storage bottle 62 and the water outlet pipe 12. When the ultrafiltration filter 11 is working normally, the solenoid valve 64 is closed to prevent water in the water storage bottle 62 from flowing into the outlet pipe 12 and affecting the normal output of filtered water. Before backwashing, the solenoid valve 64 is opened to allow water in the outlet pipe 12 to enter the water storage bottle 62 and store water. When backwashing, the solenoid valve 64 is closed. The flushing water pipe 65 serves as a channel connecting the flushing water pump 63 and the outlet pipe 12, delivering the backwash water pressurized by the flushing water pump 63 to the ultrafiltration filter 11, so that the backwash water can pass through the ultrafiltration filter 11 in reverse to complete the flushing of the ultrafiltration filter 11.

[0033] Furthermore, such as Figure 1 - Figure 7As shown, a solenoid valve 71 is connected to the outer wall of the flushing water pipe 65 near the outlet pipe 12, and a solenoid valve 72 is fixedly connected to the outer wall of the outlet pipe 12. The solenoid valve 72 is located between the solenoid valve 64 and the solenoid valve 71. The solenoid valve 71 precisely controls the backwash water flow. During the backwashing process, the solenoid valve 71 can precisely control the flow rate and timing of the backwash water in the flushing water pipe 65 entering the outlet pipe 12 and flowing to the ultrafiltration filter 11. When backwashing is performed, the solenoid valve 71 opens, allowing the backwash water pressurized by the flushing water pump 63 to smoothly enter the ultrafiltration filter 11 through the flushing water pipe 65 for backwashing. After rinsing and backwashing, solenoid valve 2 71 closes, ensuring that the normal filtered water in the outlet pipe 12 flows back to the rinsing water pipe 65, ensuring the unidirectional flow of water in the system, and maintaining the normal operation of each component. When the ultrafiltration filter 11 is working normally, solenoid valve 3 72 remains open, ensuring that the water treated by the ultrafiltration filter 11 can flow smoothly through the outlet pipe 12 to the filling machine 3. During the backwashing process, solenoid valve 3 72 closes, isolating the outlet pipe 12 from the normal water supply path, preventing backwash water from entering the filling machine 3, ensuring that only normally filtered and standard-compliant water enters the filling process, and guaranteeing product quality.

[0034] like Figure 1 - Figure 7As shown, the principle of the ultrafiltration water multi-stage treatment device provided in this embodiment is as follows: The feeder 2 holds the mixed water after adding lime and transports it to the spiral pipe 4 inside the reactor shell 1. Under the action of the protrusion 5, the mixed water passes through the spiral pipe 4, which accelerates the chemical reaction between lime and impurities such as calcium and magnesium ions in the water to generate precipitates. The mixed water flows into the gravity sedimentation tank 6, where gravity causes larger particles in the water to settle, achieving preliminary solid-liquid separation. The larger particles are filtered by the filter screen 8, and the mixed water enters the gravity sedimentation tank 7 for further sedimentation. The collection funnel 21 and the collection funnel 22 collect the precipitated impurities respectively. The sealing plug 51 is closed under the action of the electric telescopic rod 53 connected by the pull rod 52 to prevent impurities from leaking. When impurities need to be discharged, the electric telescopic rod 53 shortens, driving the pull rod 52 to open the sealing plug 51. The impurities are collected through the first drain pipe 23 and then discharged through the second drain pipe 24, eventually exiting the outside of the reactor shell 1. The drive motor 43 drives the worm gear 44 to rotate, which in turn drives the turbine 42. The turbine 42 drives the second gear 41 to rotate, which in turn drives multiple first gears 32 to rotate. The first gears 32 drive the scraper 31 to rotate synchronously. The water that has undergone two sedimentations enters the resin filter 10 through the connecting pipe 9. The water exiting the resin filter 10 enters the ultrafiltration filter 11. The water treated by the ultrafiltration filter 11... When the ultrafiltration filter 11 is working normally, the solenoid valve 64 is closed and the solenoid valve 72 remains open. When backwashing is required, the solenoid valve 64 is opened and the water storage bottle 62 stores water through the outlet pipe 12. After the water storage bottle 62 has finished storing water, the solenoid valve 64 and the solenoid valve 72 are closed, the solenoid valve 71 is opened, the flushing water pump 63 is started, the water in the water storage bottle 62 is pressurized and then sent to the ultrafiltration filter 11 through the flushing water pipe 65 for backwashing. After flushing is completed, the solenoid valve 71 is closed, the solenoid valve 72 is reopened, and the solenoid valve 64 is closed.

[0035] If certain terms are used in the specification and claims to refer to specific components, those skilled in the art will understand that hardware manufacturers may use different names to refer to the same component. This specification and claims do not distinguish components based on differences in name, but rather on differences in function. The term "comprising" as used throughout the specification and claims is an open-ended term and should be interpreted as "comprising but not limited to." "Approximately" means that within an acceptable margin of error, those skilled in the art can solve the technical problem and substantially achieve the technical effect within a certain margin of error.

Claims

1. A multi-stage ultrafiltration water treatment device, comprising a reactor shell (1), a feeder (2), and a filling machine (3), characterized in that: The feeder (2) is filled with mixed water after adding lime. The reactor shell (1) is fixedly connected with a spiral pipe (4). Multiple protrusions (5) are evenly fixedly connected inside the spiral pipe (4). The upper end of the spiral pipe (4) corresponds to the output end of the feeder (2). The lower end of the spiral pipe (4) is connected to a gravity sedimentation tank (6). The other side of the gravity sedimentation tank (6) is fixedly connected to a gravity sedimentation tank (7). A filter screen (8) is fixedly connected between the gravity sedimentation tank (6) and the gravity sedimentation tank (7). The other side of the gravity sedimentation tank (7) is fixedly connected to a connecting pipe (9). The other end of the connecting pipe (9) is connected to a resin filter (10). The other side of the resin filter (10) is connected to an ultrafiltration filter (11). The output end of the ultrafiltration filter (11) is connected to a water outlet pipe (12). The water outlet pipe (12) is connected to the filling machine (3).

2. The ultrafiltration multi-stage water treatment equipment according to claim 1, characterized in that: The lower end of the gravity sedimentation tank 1 (6) is fixedly connected to the collection funnel 1 (21), and the lower end of the gravity sedimentation tank 2 (7) is fixedly connected to the collection funnel 2 (22). The lower ends of the collection funnel 1 (21) and the collection funnel 2 (22) are both fixedly connected to the drain pipe 1 (23). Multiple drain pipes 1 (23) are connected to a drain pipe 2 (24). One end of the drain pipe 2 (24) extends to the outside of the reactor shell (1).

3. The ultrafiltration multi-stage water treatment equipment according to claim 2, characterized in that: Both the first collection funnel (21) and the second collection funnel (22) are rotatably connected to scrapers (31). Multiple scrapers (31) are in close contact with the inner walls of the first collection funnel (21) and the second collection funnel (22). The first drain pipe (23) is rotatably connected to the outer wall of one end near the scraper (31). The first gear (32) and the scraper (31) are respectively equipped with permanent magnets. Relying on the interaction of magnetic fields, when the first gear (32) rotates under the drive of external force, it drives the scraper (31) to rotate synchronously.

4. The ultrafiltration multi-stage water treatment equipment according to claim 3, characterized in that: Multiple gears (32) mesh with a gear (41). The lower end of the gear (41) is fixedly connected to a turbine (42). A drive motor (43) is provided on one side of the gear (41). The output end of the drive motor (43) is fixedly connected to a worm (44). The worm (44) meshes with the turbine (42).

5. The ultrafiltration multi-stage water treatment equipment according to claim 2, characterized in that: The bottom surfaces of the first collection funnel (21) and the second collection funnel (22) are slidably connected with sealing plugs (51). The inside of the first drain pipe (23) is slidably connected with a pull rod (52). The upper end of the pull rod (52) is fixedly connected to the sealing plug (51). An electric telescopic rod (53) is provided directly below the pull rod (52). The output end of the electric telescopic rod (53) is connected to the pull rod (52).

6. The ultrafiltration multi-stage water treatment device according to claim 1, characterized in that: The output end of the ultrafiltration filter (11) is connected to a backwashing device (61). The backwashing device (61) includes a water storage bottle (62), a flushing water pump (63), and a solenoid valve (64). The water storage bottle (62) is connected to the water outlet pipe (12). The solenoid valve (64) is fixed to the outer wall of the pipe between the water storage bottle (62) and the water outlet pipe (12). The inlet of the flushing water pump (63) is connected to the lower end of the water storage bottle (62). The outlet of the flushing water pump (63) is connected to a flushing water pipe (65), which is connected to the water outlet pipe (12).

7. The ultrafiltration multi-stage water treatment device according to claim 6, characterized in that: A second solenoid valve (71) is connected to the outer wall of the flushing water pipe (65) near the outlet pipe (12), and a third solenoid valve (72) is fixedly connected to the outer wall of the outlet pipe (12). The third solenoid valve (72) is located between the first solenoid valve (64) and the second solenoid valve (71).

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