Reverse osmosis membrane assembly with self-cleaning function

Abstract

The utility model relates to the technical field of water treatment, in particular to a reverse osmosis membrane component with a self-cleaning function, which comprises an outer shell for water treatment, a detachable end cover is mounted at one end of the outer shell, and a self-cleaning mechanism is mounted on the detachable end cover. According to the utility model, the cleaning and wiping strip is fixed on the rotating shaft through the bracket and clings to the inner wall of the reverse osmosis membrane, and the cleaning and wiping strip rotates along with the rotating shaft under the driving of the servo motor to wipe and clean the inner wall of the reverse osmosis membrane in all directions without dead angles, so that impurities and pollutants attached to the surface of the membrane are effectively removed, and the efficient filtering performance of the reverse osmosis membrane is guaranteed; the on-line self-cleaning function of the reverse osmosis membrane assembly is realized, cleaning and maintenance can be carried out without shutdown and disassembly, and the operation efficiency and continuity of equipment are improved. Meanwhile, the labor intensity and time cost of manual cleaning are reduced, the maintenance cost is reduced, and the problems of membrane blockage and damage caused by impurity accumulation can be effectively prevented through regular automatic cleaning.

Description

Technical Field

[0001] The utility model relates to the technical field of water treatment, in particular to a reverse osmosis membrane component with a self-cleaning function. Background Art

[0002] With the increasing global water shortage and rising demands for water quality, reverse osmosis membrane technology, as a highly efficient and energy-efficient water treatment technology, has been widely used in desalination, wastewater treatment, industrial water use, and domestic drinking water. Through its unique semi-permeable membrane structure and pressure-driven mechanism, reverse osmosis membranes effectively remove impurities such as dissolved salts, organic matter, microorganisms, and colloids from water, achieving high rejection rates and high water quality stability. However, existing reverse osmosis membrane modules often lack effective self-cleaning capabilities, which leads to the accumulation of impurities and contaminants on the membrane surface. Over time, these deposits can severely impact the membrane's filtration performance, reducing filtration efficiency and preventing water quality from meeting expected standards. Utility Model Content

[0003] The purpose of the present invention is to provide a reverse osmosis membrane assembly with a self-cleaning function, so as to solve the problem in the above background technology that traditional reverse osmosis membrane assemblies generally lack an effective self-cleaning function.

[0004] To achieve the above objectives, the present invention provides the following technical solutions:

[0005] A reverse osmosis membrane assembly with a self-cleaning function comprises an outer shell for water treatment, one end of the outer shell is provided with a detachable end cap, and the detachable end cap is provided with a self-cleaning mechanism;

[0006] A ring-shaped reverse osmosis membrane is coaxially installed in the outer shell, and a sealed bearing is coaxially arranged at the center of the outer shell and the detachable end cover;

[0007] The self-cleaning mechanism includes a servo motor coaxially connected to the top of the removable end cover and several groups of cleaning wiping strips in contact with the inner wall of the reverse osmosis membrane. The rotating shaft of the servo motor passes through the removable end cover and extends into the reverse osmosis membrane. A bracket for fixing the cleaning wiping strips is installed on the outer wall of the rotating shaft.

[0008] Preferably, a filtered water discharge pipe for discharging filtered water is installed on the outer wall of the outer shell.

[0009] Preferably, an end portion of the outer shell away from the detachable end cover is connected to a water outlet pipe, and a water inlet pipe is installed on the detachable end cover.

[0010] Preferably, the water outlet pipe and the water inlet pipe are arranged alternately up and down.

[0011] Preferably, the detachable end cover is connected to the outer shell via a connecting ring seat.

[0012] Preferably, the surface of the cleaning wipe strip is made of non-woven fabric or pure cotton with a thickness of 3-5 mm.

[0013] Preferably, a T-shaped slot is provided at one end of the cleaning wipe strip connected to the bracket, the bracket has a T-shaped cross section, and the end of the bracket and the slot of the cleaning wipe strip are in interference sliding fit.

[0014] Compared with the existing technology, the beneficial effects of the present invention are:

[0015] 1. In this self-cleaning reverse osmosis membrane assembly, a cleaning wiper is fixed to the rotating shaft via a bracket and placed in close contact with the inner wall of the reverse osmosis membrane. Driven by a servo motor, the cleaning wiper rotates with the rotating shaft, wiping the inner wall of the reverse osmosis membrane in all directions and without blind spots. This effectively removes impurities and contaminants adhering to the membrane surface, ensuring the efficient filtration performance of the reverse osmosis membrane. This enables online self-cleaning of the reverse osmosis membrane assembly, allowing cleaning and maintenance without downtime or disassembly, improving the equipment's operational efficiency and continuity. This also reduces the labor intensity and time required for manual cleaning, lowering maintenance costs. Furthermore, regular automatic cleaning effectively prevents membrane clogging and damage caused by impurity accumulation, further enhancing the equipment's reliability and service life.

[0016] 2. In this reverse osmosis membrane assembly with self-cleaning function, the detachable end cover is connected to the outer shell through a connecting ring seat, which enhances the connection strength and sealing between the end cover and the outer shell and prevents leakage problems that may occur during the water treatment process.

[0017] 3. In this reverse osmosis membrane assembly with self-cleaning function, the surface of the cleaning wiping strip is made of non-woven fabric or pure cotton with a thickness of 3-5mm, which can effectively absorb and remove impurities and pollutants on the surface of the reverse osmosis membrane without causing damage to the membrane surface. The cleaning wiping strip is made of rubber or silicone. A T-shaped groove is provided at one end of the cleaning wiping strip connected to the bracket. The cross-section of the bracket is T-shaped, and the grooves of the cleaning wiping strip at the end of the bracket are interference-fitted and slidingly fitted, which is convenient for disassembly and replacement. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they provide further detailed explanations, but do not constitute a limitation to the present invention.

[0019] Figure 1 It is a structural diagram of the utility model;

[0020] Figure 2This is a schematic structural diagram of the self-cleaning mechanism of the utility model;

[0021] Figure 3 This is a schematic diagram of the structure of the utility model in cross section;

[0022] Figure 4 This is a schematic diagram of the internal cross-sectional structure of the reverse osmosis membrane of the utility model;

[0023] The meaning of each number in the figure:

[0024] 10. Outer shell; 11. Filtered water discharge pipe; 12. Sealed bearing; 13. Water outlet pipe; 14. Reverse osmosis membrane;

[0025] 20. Removable end cap; 21. Connecting ring seat; 22. Water inlet pipe;

[0026] 30. Self-cleaning mechanism; 31. Servo motor; 32. Rotating shaft; 33. Bracket; 34. Cleaning wiper. DETAILED DESCRIPTION

[0027] The following will be combined with the embodiments of the present invention and the accompanying drawings to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0028] In the description of the present invention, it should be understood that the terms "center", "vertical", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0029] Reverse osmosis membrane components with self-cleaning function, such as Figures 1-4As shown, it includes an outer shell 10 for water treatment, a detachable end cap 20 is installed at one end of the outer shell 10, and a self-cleaning mechanism 30 is installed on the detachable end cap 20; an annular reverse osmosis membrane 14 is coaxially installed in the outer shell 10, and a sealed bearing 12 is coaxially arranged at the center of the outer shell 10 and the detachable end cap 20; the self-cleaning mechanism 30 includes a servo motor 31 coaxially connected to the top of the detachable end cap 20 and a plurality of cleaning wipes 34 in contact with the inner wall of the reverse osmosis membrane 14, and a rotating shaft 32 of the servo motor 31 passes through the detachable end cap 20 and extends to the reverse osmosis membrane 14 A bracket 33 for fixing a cleaning wiper 34 is mounted on the outer wall of the rotating shaft 32. The cleaning wiper 34 is fixed to the rotating shaft 32 via the bracket 33 and is in close contact with the inner wall of the reverse osmosis membrane 14. Driven by the servo motor 31, the cleaning wiper 34 rotates with the rotating shaft 32, wiping the inner wall of the reverse osmosis membrane 14 in all directions and without blind spots, effectively removing impurities and contaminants attached to the membrane surface, ensuring the efficient filtration performance of the reverse osmosis membrane, and realizing the online self-cleaning function of the reverse osmosis membrane assembly. Cleaning and maintenance can be performed without stopping or disassembling the equipment, thereby improving the operating efficiency and continuity of the equipment. At the same time, the labor intensity and time cost of manual cleaning are reduced, and maintenance costs are lowered. In addition, regular automatic cleaning can effectively prevent membrane blockage and damage caused by impurity accumulation, further improving the reliability and service life of the equipment.

[0030] Furthermore, a filtered water discharge pipe 11 for discharging filtered water is installed on the outer wall of the outer shell 10, so that the clean water filtered by the reverse osmosis membrane 14 can be discharged smoothly and enter the subsequent water treatment or utilization link.

[0031] Specifically, the outer shell 10 is connected to an outlet pipe 13 at one end away from the removable end cover 20, and a water inlet pipe 22 is installed on the removable end cover 20. The outlet pipe 13 and the water inlet pipe 22 are staggered up and down to optimize the space utilization inside the equipment, reduce interference in the water flow path, and improve the efficiency of water treatment.

[0032] The detachable end cover 20 is connected to the outer shell 10 via a connecting ring seat 21 , which enhances the connection strength and sealing between the end cover and the outer shell, and prevents leakage problems that may occur during the water treatment process.

[0033] In addition, the surface of the cleaning wiping strip 34 is made of non-woven fabric or pure cotton with a thickness of 3-5 mm, which can effectively absorb and remove impurities and pollutants on the surface of the reverse osmosis membrane 14 without causing damage to the membrane surface. The cleaning wiping strip 34 is made of rubber or silicone material. The cleaning wiping strip 34 is connected to the bracket 33 at one end and is provided with a T-shaped slide groove. The cross-section of the bracket 33 is T-shaped, and the slide grooves of the cleaning wiping strip 34 at the end of the bracket 33 are interference-fitted and slidingly fitted, which is convenient for disassembly and replacement.

[0034] The working principle of this reverse osmosis membrane assembly with self-cleaning function:

[0035] First, the entire reverse osmosis membrane assembly is installed in a suitable water treatment system. The outer shell 10 serves as the main structure to accommodate and protect the internal components.

[0036] During water treatment, water enters the outer shell 10 and is filtered through the annular reverse osmosis membrane 14;

[0037] When the reverse osmosis membrane 14 needs to be cleaned, the servo motor 31 in the self-cleaning mechanism 30 is started;

[0038] The rotating shaft 32 of the servo motor 31 begins to rotate. Since the rotating shaft 32 passes through the removable end cap 20 and extends into the reverse osmosis membrane 14, and the cleaning wiper 34 is fixed to the rotating shaft 32 by the bracket 33 and is in close contact with the inner wall of the reverse osmosis membrane 14, when the rotating shaft 32 rotates, the cleaning wiper 34 rotates with the rotating shaft 32.

[0039] The cleaning wiping strip 34 cleans the inner wall of the reverse osmosis membrane 14 in all directions without any dead angle, effectively removing impurities and pollutants attached to the membrane surface;

[0040] During the entire use process, the sealed bearing 12 coaxially arranged at the center of the outer shell 10 and the removable end cover 20 ensures the internal sealing while the rotating shaft 32 rotates;

[0041] The removable end cover 20 facilitates inspection and maintenance of the internal structure.

[0042] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely preferred examples of the present invention and are not intended to limit the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A reverse osmosis membrane assembly with a self-cleaning function, comprising an outer shell (10) for water treatment, characterized in that: A detachable end cover (20) is installed at one end of the outer shell (10), and a self-cleaning mechanism (30) is installed on the detachable end cover (20); An annular reverse osmosis membrane (14) is coaxially installed in the outer shell (10), and a sealing bearing (12) is coaxially arranged at the center of the outer shell (10) and the detachable end cover (20); The self-cleaning mechanism (30) comprises a servo motor (31) coaxially connected to the top of a detachable end cover (20) and a plurality of cleaning wipe strips (34) in contact with the inner wall of the reverse osmosis membrane (14); a rotating shaft (32) of the servo motor (31) passes through the detachable end cover (20) and extends into the reverse osmosis membrane (14); and a bracket (33) for fixing the cleaning wipe strips (34) is mounted on the outer wall of the rotating shaft (32).

2. The reverse osmosis membrane assembly with self-cleaning function according to claim 1, characterized in that: A filtered water discharge pipe (11) for discharging filtered water is installed on the outer wall of the outer shell (10).

3. The reverse osmosis membrane assembly with self-cleaning function according to claim 1, characterized in that: An end of the outer shell (10) away from the detachable end cover (20) is connected to a water outlet pipe (13), and a water inlet pipe (22) is installed on the detachable end cover (20).

4. The reverse osmosis membrane assembly with self-cleaning function according to claim 3, characterized in that: The water outlet pipe (13) and the water inlet pipe (22) are arranged in an up-and-down staggered manner.

5. The reverse osmosis membrane assembly with self-cleaning function according to claim 1, characterized in that: The detachable end cover (20) is connected to the outer shell (10) via a connecting ring seat (21).

6. The reverse osmosis membrane assembly with self-cleaning function according to claim 1, characterized in that: The surface of the cleaning wipe strip (34) is made of non-woven fabric or pure cotton material with a thickness of 3-5 mm.

7. The reverse osmosis membrane assembly with self-cleaning function according to claim 1, characterized in that: The cleaning wiping strip (34) is connected to the bracket (33) at one end thereof and is provided with a T-shaped sliding groove. The cross section of the bracket (33) is T-shaped, and the end of the bracket (33) and the sliding groove of the cleaning wiping strip (34) are interference-fitted.

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