A self-cleaning reverse osmosis membrane filter

Abstract

The utility model belongs to reverse osmosis water purifying device technical field, especially is involved a kind of self-cleaning reverse osmosis membrane filter, including reverse osmosis membrane filter body, the reverse osmosis membrane filter body below is equipped with water storage tank, the reverse osmosis membrane filter body is fixedly connected with the upper surface of water storage tank by support, the upper surface of reverse osmosis membrane filter body is equipped with water inlet, the input end of water inlet is connected with water inlet pipe, the sidewall of reverse osmosis membrane filter body bottom is equipped with pure water outlet and wastewater outlet.The utility model is through the circulation cleaning subassembly of being set, makes chemical cleaning agent circulation flow in reverse osmosis membrane, to realize the self-cleaning operation of reverse osmosis membrane filter, by setting mixed even component, chemical reagent can be mixed more fully and evenly when preparation, by setting filter component, solvent can be added, and it is filtered efficiently.

Description

Technical Field

[0001] This utility model belongs to the technical field of reverse osmosis water purification devices, and in particular relates to a self-cleaning reverse osmosis membrane filter. Background Technology

[0002] A reverse osmosis membrane is an artificial semi-permeable membrane with certain characteristics, made by simulating a biological semi-permeable membrane. Under pressure, it allows water to pass through while preventing impurities such as salts, colloids, bacteria, and viruses from passing through, thus purifying the water and separating solutes. The surface of a reverse osmosis membrane has many tiny pores. Generally, water molecules are small and have a certain affinity for the membrane material, allowing them to pass through the membrane pores smoothly. However, impurities such as salt ions cannot pass through the membrane pores due to their larger ionic radius or mutual repulsion with the charge on the membrane surface. This achieves the separation of water and impurities. A reverse osmosis membrane filter is a water treatment device that uses a reverse osmosis membrane as its core filtration element. It mainly works based on the principle of reverse osmosis.

[0003] The aforementioned existing technologies often have the following problems when used:

[0004] Existing reverse osmosis membrane filters lack proper cleaning measures for the reverse osmosis membrane during use. While the filter operates, the reverse osmosis membrane purifies the water source. However, during this process, the membrane accumulates a large amount of impurities and particulate matter. Without corresponding treatment measures, the filtration efficiency of the reverse osmosis membrane filter will be too low. Cleaning the reverse osmosis membrane often involves chemical cleaning methods, using chemicals to dissolve or decompose the impurities attached to the membrane. However, this process requires ensuring thorough mixing of the chemicals and solvents to improve subsequent cleaning efficiency. Furthermore, the solvent must be sufficiently clean when added. Therefore, appropriate treatment measures are necessary. Utility Model Content

[0005] The purpose of this invention is to address the problem of the lack of cleaning measures in the aforementioned reverse osmosis membrane filters by providing a self-cleaning reverse osmosis membrane filter that can provide efficient self-cleaning measures.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a self-cleaning reverse osmosis membrane filter, comprising a reverse osmosis membrane filter body, a water storage tank located below the reverse osmosis membrane filter body, the reverse osmosis membrane filter body being fixedly connected to the upper surface of the water storage tank via a bracket, a drain outlet located at the bottom of the side wall of the water storage tank, a water inlet located on the upper surface of the reverse osmosis membrane filter body, the inlet end of the water inlet being connected to an inlet pipe, a pure water outlet and a wastewater outlet located on the side wall at the bottom of the reverse osmosis membrane filter body, the output end of the pure water outlet being connected to a first outlet pipe, the output end of the wastewater outlet being connected to a second outlet pipe, and a self-cleaning mechanism being provided between the reverse osmosis membrane filter body and the water storage tank, the self-cleaning mechanism comprising a circulation cleaning component, a mixing homogenizing component, and a filtration component.

[0007] Preferably, the circulating cleaning component includes a water pump fixedly installed on the bottom surface of the water tank. The output end of the water pump is connected to a No. 1 water supply pipe, which penetrates the upper surface of the water tank. The output end of the No. 1 water supply pipe is connected to an inlet pipe, and a No. 1 valve is provided at the output end of the No. 1 water supply pipe. The output end of the No. 2 outlet pipe is connected to a No. 2 water supply pipe, which penetrates the inner top surface of the water tank. A No. 2 valve is provided at the inlet end of the No. 2 water supply pipe.

[0008] Preferably, the mixing assembly includes a motor fixedly connected to the side wall of the water storage tank via a bracket. The output end of the motor is fixedly connected to a first rotating shaft. The first rotating shaft is rotatably connected to the inner wall of the water storage tank via a bearing. A second rotating shaft is provided inside the water storage tank. The second rotating shaft is rotatably connected to the upper surface of the water storage tank via a bearing. A first bevel gear is fixedly connected to one end of the first rotating shaft near the second rotating shaft. A second bevel gear is fixedly connected circumferentially to the second rotating shaft. The first bevel gear meshes with the second bevel gear. Multiple stirring rods are fixedly connected equidistantly to the second rotating shaft circumferentially.

[0009] Preferably, the filter assembly includes a through groove on the upper surface of the water storage tank, a cylinder is fixedly connected between the inner walls of the through groove, a partition is fixedly connected between the inner walls of the cylinder, a plurality of sieve holes are equidistantly arranged on the upper surface of the partition, and the plurality of sieve holes are all connected to the water storage tank. A third rotating shaft is provided inside the cylinder, and the third rotating shaft is rotatably connected to the bottom surface of the partition through a bearing. A drive wheel is circumferentially fixedly connected to the top end of the second rotating shaft, and a driven wheel is circumferentially fixedly connected to the top end of the third rotating shaft. A belt is sleeved between the drive wheel and the driven wheel, and a plurality of strip cleaning brushes are circumferentially fixedly connected to the third rotating shaft at equal intervals.

[0010] Preferably, the water pump is connected to the inlet pipe via a first water supply pipe, the output end of the second water supply pipe is located inside the water storage tank, the reverse osmosis membrane filter body is located above the water storage tank, and the first and second water supply pipes are located on both sides of the reverse osmosis membrane filter body.

[0011] Preferably, the first bevel gear and the second bevel gear are both located inside the water storage tank, and the first bevel gear and the second bevel gear are respectively concentrically arranged with the first rotating shaft and the second rotating shaft, and the plurality of stirring rods are all located inside the water storage tank.

[0012] Preferably, the third rotating shaft is concentrically arranged with the cylinder and the partition, the plurality of strip cleaning brushes are located inside the cylinder, the bristles of the plurality of strip cleaning brushes are in contact with the upper surface of the partition, the driving wheel and the driven wheel are located outside the water storage tank, and the diameter of the driving wheel is larger than the diameter of the driven wheel.

[0013] Preferably, the straight-line distance from the center of the second rotating shaft to the side end of the stirring rod is less than the straight-line distance from the center of the second rotating shaft to the first water supply pipe and the second water supply pipe.

[0014] Compared with existing technologies, the advantages of this self-cleaning reverse osmosis membrane filter are:

[0015] 1. This utility model uses a circulating cleaning component to allow chemical cleaning agents to circulate within the reverse osmosis membrane, dissolving and decomposing impurities deposited on the reverse osmosis membrane. This achieves self-cleaning of the reverse osmosis membrane filter, maintaining stable filtration efficiency through self-cleaning measures. This not only makes the filter more efficient and convenient but also helps extend its service life.

[0016] 2. The present invention, through the setting of a uniform mixing component, enables chemical agents to be mixed more thoroughly and evenly during preparation, thereby improving the subsequent cleaning efficiency. When preparing chemical cleaning agents, it is necessary to mix the solute and solvent, and the degree of mixing between the solute and solvent will affect the subsequent cleaning efficiency. The more thoroughly and evenly the solute and solvent are mixed, the higher the cleaning efficiency and the better the effect.

[0017] 3. The present invention, through the filter component, can efficiently filter the solvent when it is added, thereby ensuring that the added solvent is clean enough, which is conducive to improving the subsequent cleaning efficiency. At the same time, after the filtration is completed, the power of the mixing component is used to clean the surface of the sieve holes, which is conducive to improving the preparation efficiency of chemical agents and the cleaning efficiency of reverse osmosis membrane. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural cross-sectional diagram of a self-cleaning reverse osmosis membrane filter provided by this utility model;

[0019] Figure 2 This is a three-dimensional structural cross-sectional diagram of a self-cleaning reverse osmosis membrane filter provided by this utility model from another perspective;

[0020] Figure 3 This is a three-dimensional structural diagram of a self-cleaning reverse osmosis membrane filter provided by this utility model;

[0021] Figure 4 This is a three-dimensional structural schematic diagram of a self-cleaning reverse osmosis membrane filter provided by this utility model from another perspective;

[0022] Figure 5 for Figure 1 Enlarged view of point A in the middle.

[0023] In the diagram, 1 is the reverse osmosis membrane filter body; 2 is the water storage tank; 3 is the inlet; 4 is the inlet pipe; 5 is the pure water outlet; 6 is the wastewater outlet; 7 is the first outlet pipe; 8 is the second outlet pipe; 9 is the water pump; 10 is the first water supply pipe; 11 is the first valve; 12 is the second water supply pipe; 13 is the second valve; 14 is the motor; 15 is the first shaft; 16 is the second shaft; 17 is the first bevel gear; 18 is the second bevel gear; 19 is the stirring rod; 20 is the through groove; 21 is the cylinder; 22 is the partition plate; 23 is the third shaft; 24 is the driving wheel; 25 is the driven wheel; 26 is the belt; and 27 is the strip cleaning brush. Detailed Implementation

[0024] The following embodiments are for illustrative purposes only and are not intended to limit the scope of this invention.

[0025] like Figures 1-5As shown, a self-cleaning reverse osmosis membrane filter includes a reverse osmosis membrane filter body 1, a water storage tank 2 located below the reverse osmosis membrane filter body 1, and the reverse osmosis membrane filter body 1 fixedly connected to the upper surface of the water storage tank 2 via a bracket. A drain outlet is located at the bottom of the side wall of the water storage tank 2. An inlet 3 is located on the upper surface of the reverse osmosis membrane filter body 1, and an inlet pipe 4 is connected to the inlet end of the inlet 3. A pure water outlet 5 and a wastewater outlet 6 are located on the bottom side wall of the reverse osmosis membrane filter body 1. A first outlet pipe 7 is connected to the outlet end of the pure water outlet 5, and a second outlet pipe 8 is connected to the outlet end of the wastewater outlet 6. A self-cleaning mechanism is provided between the reverse osmosis membrane filter body 1 and the water storage tank 2. The self-cleaning mechanism includes a circulation cleaning component, a mixing homogenizing component, and a filtration assembly. The circulating cleaning assembly includes a water pump 9 fixedly installed on the bottom surface of the water storage tank 2. The output end of the water pump 9 is connected to a first water supply pipe 10, which penetrates the upper surface of the water storage tank 2. The output end of the first water supply pipe 10 is connected to an inlet pipe 4. A first valve 11 is provided at the output end of the first water supply pipe 10. The output end of the second outlet pipe 8 is connected to a second water supply pipe 12, which penetrates the inner top surface of the water storage tank 2. A second valve 13 is provided at the input end of the second water supply pipe 12. The water pump 9 and the inlet pipe 4 are connected through the first water supply pipe 10. The output end of the second water supply pipe 12 is located inside the water storage tank 2. The reverse osmosis membrane filter body 1 is located above the water storage tank 2. The first water supply pipe 10 and the second water supply pipe 12 are located on both sides of the reverse osmosis membrane filter body 1, respectively.

[0026] The mixing assembly includes a motor 14 fixedly connected to the side wall of a water storage tank 2 via a bracket. A first rotating shaft 15 is fixedly connected to the output end of the motor 14. The first rotating shaft 15 is rotatably connected to the inner wall of the water storage tank 2 via a bearing. A second rotating shaft 16 is provided inside the water storage tank 2. The second rotating shaft 16 is rotatably connected to the upper surface of the water storage tank 2 via a bearing. A first bevel gear 17 is fixedly connected to one end of the first rotating shaft 15 near the second rotating shaft 16. A second bevel gear 18 is fixedly connected circumferentially to the second rotating shaft 16. The first bevel gear 17 and... The second bevel gear 18 meshes with the second rotating shaft 16, and multiple stirring rods 19 are fixedly connected circumferentially at equal intervals. The filter assembly includes a through groove 20 on the upper surface of the water storage tank 2. A cylinder 21 is fixedly connected between the inner walls of the through groove 20. A partition 22 is fixedly connected between the inner walls of the cylinder 21. Multiple sieve holes are equidistantly arranged on the upper surface of the partition 22, and all the sieve holes are connected to the water storage tank 2. A third rotating shaft 23 is provided inside the cylinder 21. The third rotating shaft 23 is rotatably connected to the bottom surface of the partition 22 through a bearing. The circumferentially... A drive wheel 24 is fixedly connected, and a driven wheel 25 is fixedly connected circumferentially to the top of the third rotating shaft 23. A belt 26 is fitted between the drive wheel 24 and the driven wheel 25. Multiple strip-shaped cleaning brushes 27 are fixedly connected circumferentially at equal intervals to the third rotating shaft 23. The first bevel gear 17 and the second bevel gear 18 are both located in the water storage tank 2. The first bevel gear 17 and the second bevel gear 18 are concentrically arranged with the first rotating shaft 15 and the second rotating shaft 16, respectively. Multiple stirring rods 19 are all located in the water storage tank 2. The distance from the center of the second rotating shaft 16 to the side of the stirring rod 19 is... The straight-line distance between the ends is less than the straight-line distance from the center of the second rotating shaft 16 to the first water supply pipe 10 and the second water supply pipe 12, so that the multiple stirring rods 19 will not affect the circulating cleaning components when they rotate. The third rotating shaft 23 is concentrically set with the cylinder 21 and the partition 22. Multiple strip cleaning brushes 27 are located inside the cylinder 21, and the bristles of the multiple strip cleaning brushes 27 are in contact with the upper surface of the partition 22. The driving wheel 24 and the driven wheel 25 are both located outside the water storage tank 2, and the diameter of the driving wheel 24 is larger than the diameter of the driven wheel 25.

[0027] The working principle of this utility model is as follows:

[0028] After a period of use, a large amount of dirt will accumulate on the reverse osmosis membrane inside the reverse osmosis membrane filter body 1, resulting in a decrease in filtration efficiency. At this time, relevant cleaning measures are required. Before cleaning, a cleaning solution is prepared by combining the homogenizing and filtering components. The solvent and solute are added to the water storage tank 2 through the cylinder 21, and the motor 14 is started. The motor 14 drives the first rotating shaft 15 to rotate, which in turn drives the first bevel gear 17 to rotate. Through meshing transmission, the first bevel gear 18 and the second rotating shaft 16 rotate. When the solute and solvent are added into the cylinder 21, the sieve holes on the baffle 22 will filter them, thereby helping to improve the filtration efficiency. The cleanliness of the solution is important, but as the amount added increases, impurities may accumulate on the surface of the sieve holes, affecting the filtration efficiency. At this time, the rotation of the second rotating shaft 16 will drive the drive wheel 24 to rotate. The drive wheel 24 drives the driven wheel 25 and the third rotating shaft 23 to rotate through the belt 26. The rotation of the third rotating shaft 23 drives multiple strip cleaning brushes to revolve and clean the back of the sieve holes, so that impurities no longer accumulate on the top of the sieve holes, which helps to improve the filtration efficiency of solute and solvent. When the solute and solvent are added to the water storage tank 2, the rotating second rotating shaft 16 drives multiple stirring rods 19 to revolve, which will stir the solute and solvent, making the two more evenly mixed, which helps to improve the subsequent cleaning efficiency.

[0029] After the cleaning solution is prepared, open valve 11 and valve 13 and start water pump 9. Water pump 9 draws the cleaning solution from water tank 2 into water pipe 10 for transport. The cleaning solution enters the reverse osmosis membrane through water inlet pipe 4, effectively dissolving or decomposing the impurities and dirt deposited in the reverse osmosis membrane. The cleaning solution flows from top to bottom and is discharged through wastewater outlet 6. It then returns to water pipe 12 through water outlet pipe 8 and then back to water tank 2 through water pipe 12, achieving a circulating flow. In this way, the impurities and dirt deposited in the reverse osmosis membrane are continuously cleaned, thus achieving efficient self-cleaning operation. After cleaning is completed, close valve 11 and valve 13, and the reverse osmosis membrane filter body 1 can be put into normal operation.

[0030] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. 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. A self-cleaning reverse osmosis membrane filter comprising a reverse osmosis membrane filter body (1), characterized in that, The reverse osmosis membrane filter body (1) is provided with a water storage tank (2) below it. The reverse osmosis membrane filter body (1) is fixedly connected to the upper surface of the water storage tank (2) by a bracket. The bottom of the side wall of the water storage tank (2) is provided with a drain outlet. The upper surface of the reverse osmosis membrane filter body (1) is provided with a water inlet (3). The input end of the water inlet (3) is connected to a water inlet pipe (4). The bottom side wall of the reverse osmosis membrane filter body (1) is provided with a pure water outlet (5) and a wastewater outlet (6). The output end of the pure water outlet (5) is connected to a first outlet pipe (7). The output end of the wastewater outlet (6) is connected to a second outlet pipe (8). A self-cleaning mechanism is provided between the reverse osmosis membrane filter body (1) and the water storage tank (2). The self-cleaning mechanism includes a circulation cleaning component, a mixing uniform component, and a filtration component.

2. The self-cleaning reverse osmosis membrane filter according to claim 1, characterized in that, The circulating cleaning assembly includes a water pump (9) fixedly installed on the bottom surface of the water storage tank (2). The output end of the water pump (9) is connected to a first water supply pipe (10). The first water supply pipe (10) penetrates the upper surface of the water storage tank (2). The output end of the first water supply pipe (10) is connected to the inlet pipe (4). The output end of the first water supply pipe (10) is equipped with a first valve (11). The output end of the second outlet pipe (8) is connected to a second water supply pipe (12). The second water supply pipe (12) penetrates the inner top surface of the water storage tank (2). The input end of the second water supply pipe (12) is equipped with a second valve (13).

3. A self-cleaning reverse osmosis membrane filter according to claim 2, characterized in that, The mixing and homogenizing component includes a motor (14) fixedly connected to the side wall of the water storage tank (2) via a bracket. The output end of the motor (14) is fixedly connected to a first rotating shaft (15). The first rotating shaft (15) is rotatably connected to the inner wall of the water storage tank (2) through a bearing. The water storage tank (2) is provided with a second rotating shaft (16). The second rotating shaft (16) is rotatably connected to the upper surface of the water storage tank (2) through a bearing. A first bevel gear (17) is fixedly connected to one end of the first rotating shaft (15) near the second rotating shaft (16). A second bevel gear (18) is fixedly connected to the second rotating shaft (16) circumferentially. The first bevel gear (17) and the second bevel gear (18) mesh with each other. Multiple stirring rods (19) are fixedly connected to the second rotating shaft (16) circumferentially at equal intervals.

4. A self-cleaning reverse osmosis membrane filter according to claim 3, characterized in that, The filter assembly includes a through groove (20) on the upper surface of the water storage tank (2), a cylinder (21) is fixedly connected between the inner walls of the through groove (20), a partition (22) is fixedly connected between the inner walls of the cylinder (21), a plurality of sieve holes are equidistantly provided on the upper surface of the partition (22), and the plurality of sieve holes are connected to the water storage tank (2). A third rotating shaft (23) is provided inside the cylinder (21), and the third rotating shaft (23) is rotatably connected to the bottom surface of the partition (22) through a bearing. A drive wheel (24) is circumferentially fixedly connected to the top end of the second rotating shaft (16), a driven wheel (25) is circumferentially fixedly connected to the top end of the third rotating shaft (23), a belt (26) is sleeved between the drive wheel (24) and the driven wheel (25), and a plurality of strip cleaning brushes (27) are circumferentially fixedly connected to the third rotating shaft (23) at equal intervals.

5. A self-cleaning reverse osmosis membrane filter according to claim 2, characterized in that, The water pump (9) is connected to the inlet pipe (4) through a first water supply pipe (10). The output end of the second water supply pipe (12) is located inside the water storage tank (2). The reverse osmosis membrane filter body (1) is located above the water storage tank (2). The first water supply pipe (10) and the second water supply pipe (12) are located on both sides of the reverse osmosis membrane filter body (1).

6. A self-cleaning reverse osmosis membrane filter according to claim 3, characterized in that, The first bevel gear (17) and the second bevel gear (18) are both located inside the water storage tank (2). The first bevel gear (17) and the second bevel gear (18) are respectively concentrically arranged with the first rotating shaft (15) and the second rotating shaft (16). The multiple stirring rods (19) are all located inside the water storage tank (2).

7. A self-cleaning reverse osmosis membrane filter according to claim 4, characterized in that, The third rotating shaft (23) is concentrically arranged with the cylinder (21) and the partition (22). Multiple strip cleaning brushes (27) are located inside the cylinder (21). The bristles of multiple strip cleaning brushes (27) are in contact with the upper surface of the partition (22). The driving wheel (24) and the driven wheel (25) are located outside the water storage tank (2). The diameter of the driving wheel (24) is larger than the diameter of the driven wheel (25).

8. A self-cleaning reverse osmosis membrane filter according to claim 3, characterized in that, The straight-line distance from the center of the second rotating shaft (16) to the side end of the stirring rod (19) is less than the straight-line distance from the center of the second rotating shaft (16) to the first water pipe (10) and the second water pipe (12).

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