Nanofiltration membrane separation mechanism

Abstract

The invention belongs to the technical field of separation mechanisms, and particularly relates to a nanofiltration membrane separation mechanism which comprises an outer shell, a nanofiltration membrane assembly is fixedly connected in the outer shell, a water inlet pipe is fixedly connected to one end of the outer shell, a first control valve is assembled on the water inlet pipe, and a water purification pipe is fixedly connected to the end, away from the water inlet pipe, of the outer shell. A discharging pipe is fixedly connected to the outer side wall, close to the water purifying pipe, of the outer shell, a mounting groove is formed in the inner wall of the outer shell, a cleaning mechanism is rotationally connected into the mounting groove, and a vibration mechanism is fixedly connected to the cleaning mechanism. The driving assembly drives water at the two ends of the nanofiltration membrane assembly to move repeatedly through kinetic energy generated by raw water, the nanofiltration membrane assembly is washed repeatedly, the washing effect is improved, an additional power source is not needed for driving, and energy consumption is reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of separation mechanisms, in particular to a nanofiltration membrane separation mechanism. Background Art

[0002] Nanofiltration membrane is a functional semipermeable membrane that allows solvent molecules, certain low molecular weight solutes or low-valent ions to pass through. It is used to remove organic matter and color from surface water, remove the hardness of groundwater, partially remove soluble salts, concentrate fruit juice, and separate useful substances in medicines. During its use, the pores of the nanofiltration membrane are easily clogged, affecting the filtration efficiency.

[0003] After searching, the patent with publication number CN118384706A discloses a nanofiltration membrane cleaning device, which drives a brush to abut against the outer wall of the nanofiltration membrane through a threaded rod, and then drives the nanofiltration membrane to rotate through a servo motor, so that the brush cleans the outer shell of the nanofiltration membrane. However, the above device can only clean the outer shell of the nanofiltration membrane, and it is difficult to clean the impurities blocked in the nanofiltration membrane pores. In addition, the device requires an additional driving mechanism when cleaning common membranes, and the energy consumption is relatively large. Summary of the invention

[0004] The object of the present invention is to provide a nanofiltration membrane separation mechanism to solve the problems raised in the above background technology.

[0005] In order to achieve the above-mentioned invention object, the present invention adopts the following technical scheme: A nanofiltration membrane separation mechanism, comprising an outer shell, a nanofiltration membrane assembly is fixedly connected to the outer shell, an inlet pipe is fixedly connected to one end of the outer shell, a first control valve is mounted on the inlet pipe, a clean water pipe is fixedly connected to one end of the outer shell away from the inlet pipe, a discharge pipe is fixedly connected to the outer wall of the outer shell close to the clean water pipe, a mounting groove is provided on the inner wall of the outer shell, a cleaning mechanism is rotatably connected to the mounting groove, and a vibration mechanism is fixedly connected to the cleaning mechanism; The cleaning mechanism comprises a rotating ring rotatably connected to the mounting groove, a cleaning plate is fixedly connected in an array on the rotating ring, a gear ring is fixedly connected to the outer wall of the rotating ring located in the mounting groove, a rotating shaft is rotatably connected through the outer wall of the outer shell near the gear ring, one end of the rotating shaft located in the mounting groove is fixedly connected to the first gear, one end of the rotating shaft extending outside the outer shell is fixedly connected to the second gear, and the outer wall of the outer shell near the second gear is fixedly connected to the driving assembly; The driving assembly comprises a water storage barrel fixedly connected to the outer shell, a partition plate is slidably connected inside the water storage barrel, the partition plate divides the internal space of the water storage barrel into a raw water chamber and a clean water chamber, a first connecting pipe is fixedly connected between the clean water chamber and the central tube of the nanofiltration membrane assembly, a second connecting pipe is fixedly connected between the raw water chamber and the water inlet pipe, a driving rod is fixedly connected to the partition plate, one end of the driving rod extending through the outside of the water storage barrel is fixedly connected to the connecting plate, a rack is slidably connected to the outer wall of the water storage barrel close to the second gear, and one end of the rack is fixedly connected to the connecting plate; The vibration mechanism includes a mounting block fixedly connected to the rotating shaft near the second gear position, a push rod is fixedly connected to the mounting block in an array, a sliding rod is slidably connected through the outer shell near the rotating shaft, one end of the sliding rod near the pushing rod is fixedly connected to a fixed block, and a side of the fixed block near the pushing rod is fixedly connected to an arc block, a spring is sleeved on the sliding rod, one end of the spring is fixedly connected to the fixed block, and the other end of the spring is fixedly connected to the outer wall of the outer shell, and one end of the sliding rod extending into the mounting groove is fixedly connected to a knocking block.

[0006] Furthermore, the striking block abuts against the rotating ring.

[0007] Furthermore, the push rod is in contact with the arc block, and the push rod slides along the arc surface of the arc block to drive the arc block to move.

[0008] Furthermore, the rack is meshed with the second gear, and the second gear is driven to rotate when the rack moves.

[0009] Furthermore, the width of the rotating ring is equal to the width of the installation groove, so that the installation groove is in a closed environment.

[0010] Furthermore, the first gear is meshed with the ring gear.

[0011] Furthermore, the water purification pipe is equipped with a second control valve, and the discharge pipe is equipped with a third control valve.

[0012] Compared with the prior art, the present invention has the following beneficial effects: The present invention can clean the nanofiltration membrane assembly by arranging a cleaning mechanism, thereby extending the service life of the nanofiltration membrane assembly to ensure the filtering effect and filtering efficiency of the nanofiltration membrane assembly; By controlling the switch of the first control valve, the kinetic energy generated by the raw water is used to drive the water at both ends of the nanofiltration membrane assembly to move repeatedly through the driving assembly, thereby repeatedly flushing the nanofiltration membrane assembly, thereby improving the cleaning effect. At the same time, no additional power source is required for cleaning, thereby reducing energy consumption. The kinetic energy generated by the raw water is used to drive the vibration mechanism to vibrate the nanofiltration membrane assembly, thereby accelerating the shedding of impurities on the nanofiltration membrane assembly and further improving the cleaning effect.

[0013] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The accompanying drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0015] Figure 1 It is a three-dimensional structural schematic diagram of the present invention; Figure 2 It is a schematic diagram of a cutaway three-dimensional structure of the present invention; Figure 3 yes Figure 2 A schematic diagram of the enlarged structure at A in the middle; Figure 4 It is a schematic diagram of the connection structure between the cleaning mechanism and the nanofiltration membrane assembly of the present invention; Figure 5 It is a schematic diagram of the connection structure of the vibration mechanism and the driving assembly of the present invention.

[0016] In the figure: 1. outer shell; 2. nanofiltration membrane assembly; 3. water inlet pipe; 4. first control valve; 5. clean water pipe; 6. discharge pipe; 7. installation groove; 8. cleaning mechanism; 9. vibration mechanism; 10. rotating ring; 11. cleaning plate; 12. gear ring; 13. rotating shaft; 14. first gear; 15. second gear; 16. driving assembly; 17. water storage barrel; 18. partition plate; 19. raw water chamber; 20. clean water chamber; 21. central tube; 22. first connecting pipe; 23. second connecting pipe; 24. driving rod; 25. connecting plate; 26. rack; 27. mounting block; 28. pushing rod; 29. ​​sliding rod; 30. fixing block; 31. arc block; 32. spring; 33. knocking block; 34. second control valve; 35. third control valve. DETAILED DESCRIPTION

[0017] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments 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 creative work should fall within the scope of protection of the present invention.

[0018] See also Figures 1 to 5The present invention provides a nanofiltration membrane separation mechanism, comprising an outer shell 1, a nanofiltration membrane assembly 2 is fixedly connected inside the outer shell 1, a water inlet pipe 3 is fixedly connected to one end of the outer shell 1, a first control valve 4 is mounted on the water inlet pipe 3, a clean water pipe 5 is fixedly connected to the end of the outer shell 1 away from the water inlet pipe 3, a discharge pipe 6 is fixedly connected to the outer wall of the outer shell 1 close to the clean water pipe 5, an installation groove 7 is provided on the inner wall of the outer shell 1, a cleaning mechanism 8 is rotatably connected inside the installation groove 7, a vibration mechanism 9 for vibrating the nanofiltration membrane assembly 2 is fixedly connected to the cleaning mechanism 8, and the first control valve 4 controls the flow of raw water to generate a driving force to drive the cleaning mechanism 8 to clean the nanofiltration membrane assembly 2.

[0019] The present invention can clean the nanofiltration membrane assembly 2 by setting a cleaning mechanism 8, thereby extending the service life of the nanofiltration membrane assembly 2 to ensure the filtering effect and filtering efficiency of the nanofiltration membrane assembly 2; the kinetic energy generated by the raw water is controlled by the first control valve 4 to drive the cleaning mechanism 8 to clean the nanofiltration membrane assembly 2, and at the same time, the nanofiltration membrane assembly 2 is driven to vibrate by the vibration mechanism 9, thereby accelerating the shedding of impurities on the nanofiltration membrane assembly 2, improving the cleaning effect, and the impurities are discharged through the discharge pipe 6.

[0020] See also Figure 3 and Figure 4 The cleaning mechanism 8 includes a rotating ring 10 rotatably connected to the mounting groove 7, a cleaning plate 11 is fixedly connected to the rotating ring 10 in an array, a gear ring 12 is fixedly connected to the outer wall of the rotating ring 10 located in the mounting groove 7, a rotating shaft 13 is rotatably connected to the outer wall of the outer shell 1 near the gear ring 12, one end of the rotating shaft 13 located in the mounting groove 7 is fixedly connected to a first gear 14, and one end of the rotating shaft 13 extending to the outside of the outer shell 1 is fixedly connected to a second gear 15, and the outer wall of the outer shell 1 near the second gear 15 is fixedly connected to a driving component 16 for driving the second gear 15 to rotate.

[0021] The flow of raw water is controlled by the first control valve 4, thereby driving the second gear 15 to circulate through the driving component 16, thereby driving the rotating shaft 13 to rotate, the rotating shaft 13 drives the first gear 14 to rotate, thereby driving the ring gear 12 to rotate, and then driving the rotating ring 10 to rotate, the rotating ring 10 drives the cleaning plate 11 to circulate, thereby cleaning the nanofiltration membrane assembly 2 to ensure the filtering effect and filtering effect of the nanofiltration membrane assembly 2, the driving component 16 drives the water at both ends of the nanofiltration membrane assembly 2 to move repeatedly, thereby repeatedly flushing the nanofiltration membrane assembly 2.

[0022] See also Figure 2 and Figure 3The driving assembly 16 includes a water storage barrel 17 fixedly connected to the outer shell 1, and a partition plate 18 is slidably connected inside the water storage barrel 17. The partition plate 18 divides the internal space of the water storage barrel 17 into a raw water chamber 19 and a clean water chamber 20. A first connecting pipe 22 is fixedly connected between the clean water chamber 20 and the central tube 21 of the nanofiltration membrane assembly 2, and a second connecting pipe 23 is fixedly connected between the raw water chamber 19 and the water inlet pipe 3. A driving rod 24 is fixedly connected to the partition plate 18, and one end of the driving rod 24 extending outside the water storage barrel 17 is fixedly connected to a connecting plate 25. A rack 26 is slidably connected to the outer wall of the water storage barrel 17 near the second gear 15, and one end of the rack 26 is fixedly connected to the connecting plate 25.

[0023] When the nanofiltration membrane assembly 2 needs to be cleaned, the clean water pipe 5 is closed and the discharge pipe 6 is opened. The water output of the discharge pipe 6 is less than the water input of the water inlet pipe 3. At this time, the raw water is filtered through the nanofiltration membrane assembly 2, and the filtered water is in the central pipe 21. The central pipe 21 is connected to the first connecting pipe 22, so that the filtered water enters the clean water chamber 20 through the first connecting pipe 22, thereby increasing the water pressure in the clean water chamber 20, thereby pushing the partition plate 18 to move, and the partition plate 18 drives the driving rod 24 to move, thereby driving the connecting plate 25 to move, and then driving the rack 26 to move. The rack 26 drives the second gear 15 to rotate to drive the cleaning plate 11 to clean the nanofiltration membrane assembly 2, and then the first control valve 4 is closed. At this time, the raw water flows into the clean water chamber 20 from the water inlet pipe 3. The filtered water in the clean water chamber 20 flows into the central tube 21 through the first connecting tube 22, and then flows into the cavity between the nanofiltration membrane assembly 2 and the outer shell 1 through the nanofiltration membrane assembly 2, thereby realizing repeated flushing of the nanofiltration membrane assembly 2, loosening the impurities on the nanofiltration membrane assembly 2, opening the first control valve 4 again, repeating the above process, and repeatedly flushing the nanofiltration membrane assembly 2, thereby improving the cleaning effect; at the same time, the kinetic energy generated by the raw water is used for flushing, and there is no need to set up an additional power source for cleaning, thereby reducing energy consumption.

[0024] See also Figure 3 and Figure 5 The vibration mechanism 9 includes a mounting block 27 fixedly connected to the rotating shaft 13 near the second gear 15, a push rod 28 is fixedly connected to the mounting block 27 in an array, a sliding rod 29 is slidably connected through the outer shell 1 near the rotating shaft 13, one end of the sliding rod 29 near the pushing rod 28 is fixedly connected to a fixed block 30, and one side of the fixed block 30 near the pushing rod 28 is fixedly connected to an arc block 31, a spring 32 is sleeved on the sliding rod 29, one end of the spring 32 is fixedly connected to the fixed block 30, and the other end of the spring 32 is fixedly connected to the outer wall of the outer shell 1, and one end of the sliding rod 29 extending into the mounting groove 7 is fixedly connected to a knocking block 33.

[0025] See also Figure 3 , the striking block 33 abuts against the rotating ring 10.

[0026] When the rotating shaft 13 rotates, the mounting block 27 is driven to rotate, thereby driving the pushing rod 28 to rotate. The pushing rod 28 rotates and abuts against the arc block 31, thereby driving the arc block 31 to move, and then driving the fixed block 30 to move. The movement of the fixed block 30 overcomes the elastic force of the spring 32 and drives the sliding rod 29 to move, thereby driving the knocking block 33 to move. When the pushing rod 28 rotates and passes through the arc surface of the arc block 31, the pushing rod 28 disengages from the arc block 31, and drives the fixed block 30 to move under the elastic force of the spring 32, thereby driving the sliding rod 29 to move, and then driving the knocking block 33 to move. The knocking block 33 knocks the rotating ring 10, causing the rotating ring 10 to vibrate. The vibration of the rotating ring 10 drives the nanofiltration membrane assembly 2 to vibrate through the cleaning plate 11, thereby accelerating the shedding of impurities on the nanofiltration membrane assembly 2, and further improving the cleaning effect.

[0027] See also Figure 5 The push rod 28 abuts against the arc block 31, and the push rod 28 slides along the arc surface of the arc block 31 to drive the arc block 31 to move, so that when the push rod 28 rotates, it can cyclically drive the arc block 31 to move, so that the knocking block 33 can continuously knock the rotating ring 10, causing it to continuously vibrate.

[0028] See also Figure 3 The rack 26 is meshed with the second gear 15 , and when the rack 26 moves, it drives the second gear 15 to rotate, thereby driving the cleaning plate 11 to clean the nanofiltration membrane assembly 2 .

[0029] See also Figure 3 The width of the rotating ring 10 is equal to the width of the installation groove 7, so that the installation groove 7 is in a closed environment to prevent raw water from entering the installation groove 7.

[0030] See also Figure 3 The first gear 14 is meshed with the ring gear 12 , and when the first gear 14 rotates, it can drive the ring gear 12 to rotate.

[0031] See also Figure 1 A second control valve 34 is installed on the clean water pipe 5, and a third control valve 35 is installed on the discharge pipe 6. The second control valve 34 and the third control valve 35 are used to control the opening and closing of the clean water pipe 5 and the discharge pipe 6, thereby achieving cleaning of the nanofiltration membrane assembly 2.

[0032] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A nanofiltration membrane separation mechanism, characterized in that: The invention comprises an outer shell (1), a nanofiltration membrane assembly (2) is fixedly connected inside the outer shell (1), a water inlet pipe (3) is fixedly connected to one end of the outer shell (1), a first control valve (4) is mounted on the water inlet pipe (3), a clean water pipe (5) is fixedly connected to one end of the outer shell (1) away from the water inlet pipe (3), a discharge pipe (6) is fixedly connected to the outer wall of the outer shell (1) close to the clean water pipe (5), a mounting groove (7) is provided on the inner wall of the outer shell (1), a cleaning mechanism (8) is rotatably connected inside the mounting groove (7), and a vibration mechanism (9) is fixedly connected to the cleaning mechanism (8); The cleaning mechanism (8) comprises a rotating ring (10) rotatably connected to the mounting groove (7), a cleaning plate (11) being fixedly connected in an array on the rotating ring (10), a gear ring (12) being fixedly connected to the outer wall of the rotating ring (10) located in the mounting groove (7), a rotating shaft (13) passing through and rotatably connected to a position of the outer wall of the outer shell (1) close to the gear ring (12), a first gear (14) being fixedly connected to one end of the rotating shaft (13) located in the mounting groove (7), a second gear (15) being fixedly connected to one end of the rotating shaft (13) extending outside the outer shell (1), and a driving assembly (16) being fixedly connected to the outer wall of the outer shell (1) close to the second gear (15); The driving assembly (16) comprises a water storage barrel (17) fixedly connected to the outer shell (1), a partition plate (18) being slidably connected inside the water storage barrel (17), the partition plate (18) dividing the internal space of the water storage barrel (17) into a raw water chamber (19) and a clean water chamber (20), a first connecting pipe (22) being fixedly connected between the clean water chamber (20) and the central tube (21) of the nanofiltration membrane assembly (2), a second connecting pipe (23) being fixedly connected between the raw water chamber (19) and the water inlet pipe (3), a driving rod (24) being fixedly connected to the partition plate (18), one end of the driving rod (24) extending through the water storage barrel (17) being fixedly connected to a connecting plate (25), a rack (26) being slidably connected to the outer wall of the water storage barrel (17) close to the second gear (15), one end of the rack (26) being fixedly connected to the connecting plate (25); The vibration mechanism (9) comprises a mounting block (27) fixedly connected to a position of the rotating shaft (13) near the second gear (15); a push rod (28) is fixedly connected to the mounting block (27); a sliding rod (29) is slidably connected to a position of the outer shell (1) near the rotating shaft (13); a fixed block (30) is fixedly connected to one end of the sliding rod (29) near the pushing rod (28); a curved block (31) is fixedly connected to one side of the fixed block (30) near the pushing rod (28); a spring (32) is sleeved on the sliding rod (29); one end of the spring (32) is fixedly connected to the fixed block (30); the other end of the spring (32) is fixedly connected to the outer wall of the outer shell (1); and one end of the sliding rod (29) extending into the mounting groove (7) is fixedly connected to a knocking block (33).

2. A nanofiltration membrane separation mechanism according to claim 1, characterized in that: The striking block (33) abuts against the rotating ring (10).

3. A nanofiltration membrane separation mechanism according to claim 1, characterized in that: The push rod (28) is in contact with the arc block (31), and the push rod (28) slides along the arc surface of the arc block (31) to drive the arc block (31) to move.

4. A nanofiltration membrane separation mechanism according to claim 1, characterized in that: The rack (26) is meshed with the second gear (15), and when the rack (26) moves, it drives the second gear (15) to rotate.

5. A nanofiltration membrane separation mechanism according to claim 1, characterized in that: The width of the rotating ring (10) is equal to the width of the installation groove (7), so that the installation groove (7) is in a closed environment.

6. A nanofiltration membrane separation mechanism according to claim 1, characterized in that: The first gear (14) is meshed with the ring gear (12).

7. A nanofiltration membrane separation mechanism according to claim 1, characterized in that: The clean water pipe (5) is equipped with a second control valve (34), and the discharge pipe (6) is equipped with a third control valve (35).

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