Double-RO-membrane reverse osmosis water purification equipment

Abstract

The utility model provides reverse osmosis water purification equipment with double RO (reverse osmosis) membranes, which belongs to the technical field of reverse osmosis and comprises a support frame, one end, close to a connecting pipe, of a first RO membrane reverse osmosis pipe is connected with a second RO membrane reverse osmosis pipe through a pipeline, and a vibration auxiliary filter component is arranged between the first RO membrane reverse osmosis pipe and the second RO membrane reverse osmosis pipe. The vibration auxiliary filtering assembly comprises a first sleeve and a second sleeve which are arranged in a staggered mode, the first sleeve fixedly sleeves the peripheral side of the end, close to the connecting pipe, of the first RO membrane reverse osmosis pipe, the second sleeve fixedly sleeves the peripheral side of the end, away from the connecting pipe, of the second RO membrane reverse osmosis pipe, and a vibration connecting plate is obliquely welded between the first sleeve and the second sleeve; the vibration spring is fixed in the center of the inner wall of the vibration connecting plate, and the electric push-pull rod is loosened after the vibration spring is stretched. According to the utility model, dirt and sediments on the surface of the RO membrane are effectively prevented from being accumulated, and flux reduction caused by membrane pollution is avoided.

Description

Technical Field

[0001] This utility model belongs to the field of reverse osmosis technology, specifically relating to a dual RO membrane reverse osmosis pure water equipment. Background Technology

[0002] As people's requirements for drinking water quality continue to increase, reverse osmosis (RO) technology has been widely used in households, industries, and commercial sectors due to its high water purification efficiency.

[0003] However, traditional RO membrane reverse osmosis equipment has some significant shortcomings, especially during long-term operation. RO membranes are susceptible to fouling by dirt and particulate matter. This fouling is even more severe when treating water sources containing high levels of suspended solids and organic matter, leading to blockage of the water flow by accumulated impurities, reduced flux, and decreased purification efficiency. These problems not only increase equipment maintenance costs but also negatively impact the user's water experience. Utility Model Content

[0004] The purpose of this invention is to provide a dual RO membrane reverse osmosis pure water device, which aims to solve the problem of water flow being blocked by accumulated impurities in the existing technology.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a dual RO membrane reverse osmosis pure water device, comprising a support frame, an inlet pipe mounted inside the support frame, a filter pipe connected to the output end of the inlet pipe via a connecting pipe, a first RO membrane reverse osmosis pipe connected to the end of the filter pipe away from the connecting pipe via a pipe, a second RO membrane reverse osmosis pipe connected to the end of the first RO membrane reverse osmosis pipe near the connecting pipe via a pipe, a vibration-assisted filtration assembly disposed between the first and second RO membrane reverse osmosis pipes, the vibration-assisted filtration assembly comprising a first sleeve and a second sleeve arranged in an alternating manner, the first sleeve being fixedly fitted around the periphery of the end of the first RO membrane reverse osmosis pipe near the connecting pipe, the second sleeve being fixedly fitted around the periphery of the end of the second RO membrane reverse osmosis pipe away from the connecting pipe, a vibration connecting plate being inclinedly welded between the first and second sleeves, the vibration-assisted filtration assembly further comprising a vibration spring fixed to the center position of the inner wall of the vibration connecting plate and an electric push-pull rod that stretches and then releases the vibration spring.

[0006] In this preferred embodiment, a central disc is integrally formed at the middle position of the vibration connecting plate, and an L-shaped lifting rod is welded above the support frame and on one side of the second RO membrane reverse osmosis tube, with an installation plate welded to the bottom end of the L-shaped lifting rod.

[0007] In a preferred embodiment of this design, a fixed outer tube is welded to the inner wall of the mounting plate, and a fixed inner tube is concentrically arranged inside the fixed outer tube.

[0008] In this preferred embodiment, one end of the fixed inner tube is also welded to the inner wall of the mounting plate, and a rubber shock-absorbing buffer tube is sleeved between the fixed inner tube and the fixed outer tube.

[0009] In this preferred embodiment, the electric push-pull rod is horizontally arranged in the fixed inner tube, and the tail end of the electric push-pull rod is fixed to the inner wall of the mounting plate.

[0010] In a preferred embodiment of this design, a support plate is welded to the free end of the electric push-pull rod, a drive motor is fixedly installed on the inner wall of the support plate, and a rotating hook is fixed to the output shaft of the drive motor.

[0011] In this preferred embodiment, both ends of the vibration spring are integrally formed with pull rings, one of which is fixedly connected to the central disc, and the other is dynamically pulled by the rotating hook.

[0012] In a preferred embodiment, a shock-absorbing silicone ring is bonded to the outer periphery of the support plate, and the outer periphery of the shock-absorbing silicone ring makes sliding frictional contact with the inner wall of the fixed inner tube.

[0013] In a preferred embodiment, a power distribution box is provided on the upper part of the support frame, and the power distribution box contains a PLC for controlling the opening and closing of the electric push-pull rod and the drive motor.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. This dual-RO membrane reverse osmosis pure water equipment utilizes a dual-RO membrane reverse osmosis tube design to achieve two reverse osmosis treatments, significantly improving water purity and ensuring higher quality final purified water. The introduction of a vibration-assisted filtration component allows for regular vibration cleaning of the RO membrane, effectively preventing the accumulation of dirt and deposits on the RO membrane surface, avoiding flux reduction due to membrane fouling, and extending the RO membrane's lifespan. The automatic cleaning function reduces the frequency and difficulty of manual cleaning, lowering maintenance costs and operational complexity, and improving the equipment's economy and practicality.

[0016] 2. This dual RO membrane reverse osmosis pure water equipment features a vibration-assisted filtration component comprising an alternating first and second sleeve, and an inclined vibrating connecting plate. This design ensures that vibration is evenly transmitted to the surfaces of both the first and second RO membrane tubes, achieving a comprehensive cleaning effect. The combined design of the vibrating connecting plate and vibration spring generates strong vibrations under the drive of an electric push-pull rod. This vibration not only effectively removes contaminants from the RO membrane surface but also prevents re-adhesion, ensuring the long-term efficient operation of the RO membrane. The vibration-assisted filtration component not only removes contaminants from the RO membrane surface but also prevents blockage at the water output direction. This design helps maintain smooth water flow and improves water treatment efficiency. Attached Figure Description

[0017] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

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

[0019] Figure 2 This is a schematic diagram of the structure of the vibration connecting plate in this utility model;

[0020] Figure 3 This is a schematic diagram of the disassembly structure of the vibration spring in this utility model;

[0021] Figure 4 This is a schematic diagram of the disassembly structure of the rubber shock-absorbing buffer tube in this utility model;

[0022] Figure 5 This is a schematic diagram of the disassembly structure of the electric push-pull rod in this utility model;

[0023] Figure 6 This is a schematic diagram of the installation structure of the rotating hook in this utility model.

[0024] In the diagram: 1. Support frame; 2. Inlet pipe; 3. Distribution box; 4. Filter pipe; 5. First RO membrane reverse osmosis pipe; 6. Second RO membrane reverse osmosis pipe; 7. Connecting pipe; 8. First sleeve; 9. L-shaped lifting rod; 10. Second sleeve; 11. Vibration-assisted filtration assembly; 12. Reinforcing rib; 13. Mounting plate; 14. Fixed outer pipe; 15. Vibration connecting plate; 16. Center plate; 17. Fixed inner pipe; 18. Rubber shock-absorbing buffer pipe; 19. Electric push-pull rod; 20. Support plate; 21. Shock-absorbing silicone ring; 22. Drive motor; 23. Rotating hook; 24. Pull ring; 25. Vibration spring. Detailed Implementation

[0025] 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. Example

[0026] Please see Figures 1-6This utility model provides the following technical solution: A dual RO membrane reverse osmosis pure water device, including a support frame 1, with an inlet pipe 2 installed inside the support frame 1. The output end of the inlet pipe 2 is connected to a filter pipe 4 via a connecting pipe 7. The filter pipe 4 initially filters out large particulate impurities in the water, reducing the burden on the subsequent RO membrane reverse osmosis pipes and improving water treatment efficiency. The end of the filter pipe 4 furthest from the connecting pipe 7 is connected to a first RO membrane reverse osmosis pipe 5 via a pipe. The end of the first RO membrane reverse osmosis pipe 5 closest to the connecting pipe 7 is connected to a second RO membrane reverse osmosis pipe 6 via a pipe. The first RO membrane reverse osmosis pipe 5 and the second RO membrane reverse osmosis pipe 6 use reverse osmosis technology to remove dissolved minerals and other small particles from the water, achieving deep purification of the water and providing high-quality pure water. A vibration-assisted filtration assembly 11 is provided between the first RO membrane reverse osmosis pipe 5 and the second RO membrane reverse osmosis pipe 6. The vibration-assisted filtration assembly 11 includes a first sleeve 8 and a second sleeve 10 arranged in an alternating manner. The first sleeve 8 and the second sleeve 10, as part of the vibration-assisted filtration assembly, help remove contaminants from the surface of the RO membrane through their own vibration, avoiding flux reduction caused by membrane fouling. The first sleeve 8 is fixedly sleeved on the periphery of the end of the first RO membrane reverse osmosis tube 5 near the connecting tube 7, and the second sleeve 10 is fixedly sleeved on the periphery of the end of the second RO membrane reverse osmosis tube 6 away from the connecting tube 7. A vibrating connecting plate 15 is inclinedly welded between the first sleeve 8 and the second sleeve 10. The vibration-assisted filtration assembly 11 also includes a vibration spring 25 fixed at the center of the inner wall of the vibration connecting plate 15 and an electric push-pull rod 19 that is stretched and then released after the vibration spring 25 is stretched. When the electric push-pull rod 19 pulls the vibration spring 25, the vibration spring 25 extends. When the electric push-pull rod 19 releases the vibration spring 25, the vibration spring 25 rebounds onto the vibration connecting plate 15 under the elastic reaction force. This causes the two ends of the vibration connecting plate 15 to transmit this elastic force to the first sleeve 8 and the second sleeve 10, causing the first sleeve 8 and the second sleeve 10 to vibrate the first RO membrane reverse osmosis tube 5 and the second RO membrane reverse osmosis tube 6 respectively. This vibration disperses the accumulated dust particles inside, preventing them from accumulating and clogging. At the same time, because the first sleeve 8 and the second sleeve 10 are staggered, the vibration connecting plate 15 is tilted, which allows for uniform vibration of the first RO membrane reverse osmosis tube 5 and the second RO membrane reverse osmosis tube 6, and also vibrates the water flow output direction end to prevent accumulation, thus helping to improve the water flow direction. The vibration connecting plate 15 and the vibration spring 25 work together to generate vibration, effectively removing deposits on the RO membrane and maintaining the working performance of the RO membrane.

[0027] In this embodiment, a central disk 16 is integrally formed in the middle of the vibration plate 15, and an L-shaped lifting rod 9 is welded above the support frame 1 and on one side of the second RO membrane reverse osmosis tube 6. An installation disk 13 is welded to the bottom of the L-shaped lifting rod 9.

[0028] In this embodiment, a fixed outer tube 14 is welded to the inner wall of the mounting plate 13, and a fixed inner tube 17 is concentrically arranged inside the fixed outer tube 14.

[0029] In this embodiment, one end of the fixed inner tube 17 is also welded to the inner wall of the mounting plate 13, and a rubber shock-absorbing buffer tube 18 is sleeved between the fixed inner tube 17 and the fixed outer tube 14.

[0030] In this embodiment, the electric push-pull rod 19 is horizontally disposed in the fixed inner tube 17, and the tail end of the electric push-pull rod 19 is fixed to the inner wall of the mounting plate 13. The electric push-pull rod 19 drives the vibration-assisted filter assembly to work through its extension and retraction action, realizing the function of automatically cleaning the RO membrane. The fixed inner tube 17 and the rubber shock-absorbing buffer tube 18 reduce the impact of vibration on other components through shock absorption design, ensuring the stability and reliability of the system.

[0031] In this embodiment, a support plate 20 is welded to the free end of the electric push-pull rod 19. A drive motor 22 is fixedly installed on the inner wall of the support plate 20, and a rotating hook 23 is fixed to the output shaft of the drive motor 22. The drive motor 22 and the rotating hook 23 periodically stretch the vibration spring through the rotating hook, causing vibration, thereby achieving the purpose of cleaning the RO membrane.

[0032] In this embodiment, both ends of the vibration spring 25 are integrally formed with pull rings 24. One pull ring 24 is fixedly connected to the central disk 16, and the other pull ring 24 is dynamically pulled by the rotating hook 23. When the electric push-pull rod 19 drives the drive motor 22 to move to the vibration spring 25, the drive motor 22 drives the rotating hook 23 to rotate forward into the adjacent pull ring 24, so that the rotating hook 23 hooks the pull ring 24, thereby causing the electric push-pull rod 19 to retract and move backward. The electric push-pull rod 19 pulls the vibration spring 25 through the rotating hook 23, so that the vibration spring 25 is stretched and unfolded. Then the drive motor 22 drives the rotating hook 23 to rotate in the opposite direction, so that the rotating hook 23 returns to its initial state and disengages from the pull ring 24, thereby causing the vibration spring 25 to rebound rapidly after losing tension.

[0033] In this embodiment, a shock-absorbing silicone ring 21 is bonded to the outer peripheral wall of the support plate 20, and the outer peripheral wall of the shock-absorbing silicone ring 21 slides and rubs against the inner wall of the fixed inner tube 17.

[0034] In this embodiment, a power distribution box 3 is provided on the upper part of the support frame 1. The power distribution box 3 has a PLC inside for controlling the opening and closing of the electric push-pull rod 19 and the drive motor 22. A reinforcing rib plate 12 is welded at the vertical angle of the L-shaped lifting rod 9. The end of the fixed outer tube 14 away from the mounting plate 13 abuts against the inner wall of the central plate 16.

[0035] In this embodiment, all electrical components mentioned in this article are electrically connected to the external main controller and 220V AC mains power.

[0036] The working principle and usage process of this utility model are as follows: When using this dual RO membrane reverse osmosis pure water equipment, open the distribution box 3 and start the PLC controller. Set the working parameters of the electric push-pull rod 19 and the drive motor 22, such as vibration frequency and vibration amplitude.

[0037] External water enters the equipment through inlet pipe 2. The water flows through filter pipe 4, where large particles are initially filtered out. The pre-filtered water then enters the first RO membrane reverse osmosis pipe 5 through connecting pipe 7. The first RO membrane reverse osmosis pipe 5 uses reverse osmosis technology to remove dissolved minerals and other small particles from the water, producing primary purified water. This primary purified water then enters the second RO membrane reverse osmosis pipe 6 through connecting pipe 7. The second RO membrane reverse osmosis pipe 6 performs reverse osmosis treatment again, further improving the water's purity and producing final purified water.

[0038] The PLC controller activates the electric push-pull rod 19 according to a preset time interval. The electric push-pull rod 19 extends forward, driving the support plate 20 and drive motor 22 to move forward. The drive motor 22 starts, and the rotating hook 23 rotates clockwise, hooking the pull ring 24 at one end of the vibration spring 25. The electric push-pull rod 19 continues to extend, stretching the vibration spring 25 through the rotating hook 23, so that the vibration spring 25 is in a stretched state.

[0039] When the vibration spring 25 reaches its maximum extension length, the drive motor 22 rotates in the opposite direction, and the rotating hook 23 releases the pull ring 24. Under the action of elastic restoring force, the vibration spring 25 rebounds rapidly, generating strong vibration. The vibration connecting plate 15 transmits the vibration to the first sleeve 8 and the second sleeve 10. The first sleeve 8 and the second sleeve 10 vibrate the first RO membrane reverse osmosis tube 5 and the second RO membrane reverse osmosis tube 6 respectively, helping to remove dirt and deposits from the membrane surface and preventing clogging.

[0040] The above vibration process is repeated at a set frequency and period to ensure that the RO membrane surface remains clean and maintains good water flux.

[0041] The shock-absorbing silicone ring 21 on the outer side of the support plate 20 contacts the inner wall of the fixed inner tube 17, providing shock absorption and reducing noise and vibration during equipment operation. The rubber shock-absorbing buffer tube 18 between the fixed outer tube 14 and the fixed inner tube 17 further absorbs vibration energy, protecting the internal structure of the equipment. The L-shaped lifting rod 9 and the reinforcing ribs 12 enhance the overall structural stability of the equipment, ensuring its safety and reliability during handling and use.

[0042] Finally, it should be noted that the above are merely preferred embodiments of this utility model and are not intended to limit the utility model. Although the 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 this utility model should be included within the protection scope of this utility model.

Claims

1. A dual RO membrane reverse osmosis pure water device, comprising a support frame (1), characterized in that: The support frame (1) is equipped with an inlet pipe (2). The output end of the inlet pipe (2) is connected to a filter pipe (4) through a connecting pipe (7). The end of the filter pipe (4) away from the connecting pipe (7) is connected to a first RO membrane reverse osmosis pipe (5) through a pipe. The end of the first RO membrane reverse osmosis pipe (5) close to the connecting pipe (7) is connected to a second RO membrane reverse osmosis pipe (6) through a pipe. A vibration-assisted filtration assembly (11) is provided between the first RO membrane reverse osmosis tube (5) and the second RO membrane reverse osmosis tube (6). The vibration-assisted filtration assembly (11) includes a first sleeve (8) and a second sleeve (10) arranged in an alternating manner. The first sleeve (8) is fixedly sleeved on the periphery of the first RO membrane reverse osmosis tube (5) near the connecting tube (7). The second sleeve (10) is fixedly sleeved on the periphery of the second RO membrane reverse osmosis tube (6) away from the connecting tube (7). A vibration connecting plate (15) is inclinedly welded between the first sleeve (8) and the second sleeve (10). The vibration-assisted filtration assembly (11) also includes a vibration spring (25) fixed at the center of the inner wall of the vibration connecting plate (15) and an electric push-pull rod (19) that stretches the vibration spring (25) and then releases it.

2. The dual RO membrane reverse osmosis pure water equipment according to claim 1, characterized in that: A central disc (16) is integrally formed in the middle of the vibration plate (15). An L-shaped lifting rod (9) is welded above the support frame (1) and on one side of the second RO membrane reverse osmosis tube (6). An installation disc (13) is welded to the bottom of the L-shaped lifting rod (9).

3. The dual RO membrane reverse osmosis pure water equipment according to claim 2, characterized in that: The inner wall of the mounting plate (13) is welded with a fixed outer tube (14), and a fixed inner tube (17) is concentrically arranged inside the fixed outer tube (14).

4. The dual RO membrane reverse osmosis pure water equipment according to claim 3, characterized in that: One end of the fixed inner tube (17) is also welded to the inner wall of the mounting plate (13), and a rubber shock-absorbing buffer tube (18) is sleeved between the fixed inner tube (17) and the fixed outer tube (14).

5. The dual RO membrane reverse osmosis pure water equipment according to claim 4, characterized in that: The electric push-pull rod (19) is horizontally arranged in the fixed inner tube (17), and the tail end of the electric push-pull rod (19) is fixed to the inner wall of the mounting plate (13).

6. The dual RO membrane reverse osmosis pure water equipment according to claim 5, characterized in that: The telescopic free end of the electric push-pull rod (19) is welded with a support plate (20), and a drive motor (22) is fixedly installed on the inner wall of the support plate (20). The output shaft of the drive motor (22) is fixed with a rotating hook (23).

7. A dual RO membrane reverse osmosis pure water equipment according to claim 6, characterized in that: Both ends of the vibration spring (25) are integrally formed with pull rings (24), one of the pull rings (24) is fixedly connected to the central disk (16), and the other pull ring (24) is dynamically contacted and pulled by the rotating hook (23).

8. A dual RO membrane reverse osmosis pure water equipment according to claim 7, characterized in that: The outer peripheral wall of the support plate (20) is bonded with a shock-absorbing silicone ring (21), and the outer peripheral wall of the shock-absorbing silicone ring (21) is in sliding friction contact with the inner wall of the fixed inner tube (17).

9. A dual RO membrane reverse osmosis pure water equipment according to claim 8, characterized in that: The upper part of the support frame (1) is provided with a power distribution box (3), and the inside of the power distribution box (3) has a PLC for controlling the opening and closing of the electric push-pull rod (19) and the drive motor (22).

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