Large ultrafiltration water purification equipment

Abstract

The invention discloses large-scale ultrafiltration water purification equipment, and belongs to the technical field of ultrafiltration water purification equipment.The large-scale ultrafiltration water purification equipment comprises a mounting shell, an upper fixing shell is fixedly mounted at the upper end of the mounting shell, a lower fixing shell is fixedly mounted at the lower end of the mounting shell, and a fixing plate is fixedly connected to the upper end of the inner wall of the mounting shell; an ultrafiltration membrane assembly is fixedly connected to the lower end of the fixing plate, a pneumatic rotating assembly is arranged on one side of the mounting shell, an inner shell is rotationally connected into the mounting shell, and a flushing and cleaning assembly is arranged in the upper fixing shell. By designing the matched pneumatic rotating assembly, the cleaning assembly and the flushing cleaning assembly, all-area standardized cleaning is achieved, and the water saving rate can be greatly increased; by designing the cleaning assembly, sewage obtained after rotary cleaning can flow out along a sewage guide pipe and then is collected in a unified mode through a sewage receiving tank.

Description

Technical Field

[0001] The present invention belongs to the technical field of ultrafiltration water purification equipment, and particularly relates to a large-scale ultrafiltration water purification equipment. Background Art

[0002] An ultrafiltration water purification equipment is a water treatment equipment that uses an ultrafiltration membrane for physical filtration, mainly used to remove suspended solids, bacteria, viruses, colloids and macromolecular organic matters in water, while retaining minerals beneficial to the human body, such as calcium, magnesium, potassium, etc. The ultrafiltration membrane has a uniform microporous structure, and the pore size of these micropores is usually between 0.001 - 0.1 micrometers. When the solution to be treated passes through the ultrafiltration membrane, particles, molecules and other substances larger than the membrane pore size will be intercepted, while substances smaller than the membrane pore size can pass through the membrane, thus realizing the separation of molecules of different sizes.

[0003] Existing large-scale ultrafiltration water purification equipment has a large volume and a narrow internal space. When maintenance personnel enter the equipment to clean the ultrafiltration membrane, the activity space is limited, making it difficult to carry out operations, increasing the difficulty and time cost of cleaning. Therefore, the reverse flushing method is usually used to clean the ultrafiltration membrane. Through the flow of reverse flushing water, the water flow enters from the water production port of the ultrafiltration membrane and exits from the water inlet, flushing away the pollutants attached to the membrane surface and pores. However, the ultrafiltration membrane area of large-scale water purification equipment is large and the pollution degree is relatively high. A large amount of water is required for flushing during reverse flushing cleaning, which will consume a large amount of water resources, increasing the water consumption cost. Moreover, the water flow distribution is not uniform throughout the ultrafiltration membrane, resulting in over-flushing in some areas and under-flushing in some areas, affecting the overall cleaning effect. At the same time, to ensure the flushing effect, a large-area ultrafiltration membrane needs to be flushed for a long time, which will also affect the equipment operation efficiency and reduce the water production time. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the above-mentioned disadvantages of the prior art and provide a large-scale ultrafiltration water purification equipment.

[0005] The technical solution adopted to solve the above technical problems is: a large-scale ultrafiltration water purification equipment, including a mounting shell, an upper fixed shell is fixedly mounted on the upper end of the mounting shell, a lower fixed shell is fixedly mounted on the lower end of the mounting shell, a fixing plate is fixedly connected to the upper end of the inner wall of the mounting shell, a sewage pipe is fixedly mounted on the lower end of the lower fixed shell, a discharge valve is fixedly mounted on the sewage pipe, and a support assembly is fixedly arranged at the lower end of the lower fixed shell; an ultrafiltration membrane assembly is fixedly connected to the lower end of the fixing plate, an ultrafiltration membrane is installed in the ultrafiltration membrane assembly, an outlet pipe is fixedly mounted on the upper end of the ultrafiltration membrane assembly, a water pump is fixedly mounted on one end of the outlet pipe away from the ultrafiltration membrane assembly, a liquid inlet pipe is fixedly mounted on the upper fixed shell, a pneumatic rotating assembly is arranged on one side of the mounting shell, and an inner shell is rotatably connected in the mounting shell; a connecting seat is fixedly mounted in the lower fixed shell, a fixing frame is fixedly connected to the connecting seat, a fixing frame is fixedly connected to the fixing seat, a cleaning assembly is installed on the fixing seat, and a flushing and cleaning assembly is arranged in the upper fixed shell.

[0006] Through the above technical solution, the pneumatic rotating component drives the cleaning component to move with high-pressure gas, and finally only a small amount of water is needed to flush the cleaning component to assist in flushing the peeled dirt. In comparison, the water saving rate can be greatly improved.

[0007] Furthermore, the support assembly includes a support ring seat fixedly mounted to the outer wall of the lower fixed shell, a plurality of support feet are fixedly mounted on the circumference of the lower end of the support ring seat, one end of the support feet away from the support ring seat is fixedly connected to a support base, and a sewage tank is arranged inside the support base.

[0008] Furthermore, the pneumatic rotating assembly includes a high-pressure air intake pipe fixedly connected to the mounting shell, an air intake connecting frame fixedly installed on one side of the high-pressure air intake pipe, the air intake connecting frame is connected to a high-pressure air source through multiple sets of fixing bolts, a rotating shell is fixedly installed on the outer side of the inner shell, and a plurality of evenly distributed air guide plates are also fixedly connected to the outer side of the rotating shell, and an iron bar is fixedly connected to one side of the air guide plate.

[0009] Through the above technical solution, the high-pressure gas input by the high-pressure air inlet pipe can drive the rotating shell to rotate through the air guide plate, thereby driving the cleaning brush to rotate to clean the outside of the ultrafiltration membrane assembly.

[0010] Furthermore, the high-pressure air intake pipe is connected to the inside of the installation shell, and the air intake channel of the high-pressure air intake pipe is arranged in a tangent structure with the installation shell, and a plurality of magnetic pole bars are embedded and installed on the circumference of the inner wall of the installation shell.

[0011] Through the above technical solution, after the high-pressure intake pipe stops supplying gas, the rotation speed of the rotating housing will start to slow down. When the speed slows down to a certain extent, affected by the magnetic suction force of the magnetic pole strips, multiple air guide plates on the rotating housing will be magnetically attracted by the magnetic pole strips, so that each magnetic pole strip can attract and fix the corresponding air guide plate.

[0012] Furthermore, the cleaning assembly includes a stepper motor fixedly connected to the fixed seat. The output end of the stepper motor is fixedly connected with a mounting seat and a turntable. A plurality of arc-shaped grooves are evenly formed in a circumferential manner on the turntable. A plurality of limit blocks are respectively slidably connected in the plurality of arc-shaped grooves. A connecting bottom plate is fixedly connected to the limit block. A cleaning mounting seat is fixedly installed on the connecting bottom plate. A cleaning brush is fixedly connected to the cleaning mounting seat. First liquid guide holes are arranged on both sides of the cleaning brush. The first liquid guide holes are fixedly installed with the inner housing. The cleaning mounting seat is slidably connected with the first liquid guide holes.

[0013] Through the above technical solution, the output end of the stepper motor drives the mounting seat and the turntable to rotate. Through the limitation of the arc-shaped grooves on the turntable, the limit block can drive the cleaning brush on the cleaning mounting seat to move towards the ultrafiltration membrane assembly.

[0014] Furthermore, a connecting ring seat is fixedly connected inside the lower fixed housing. Second liquid guide holes are evenly formed in the connecting ring seat. A connecting ring is rotatably connected to the connecting ring seat. First liquid guide holes are evenly formed in the connecting ring.

[0015] Through the above technical solution, the first liquid guide holes and the second liquid guide holes can be aligned by rotation. Sewage can flow out along the sewage guide pipe. When the first liquid guide holes and the second liquid guide holes are staggered from each other, the sewage outflow channel can be closed to prevent the water to be filtered inside the inner housing from flowing out.

[0016] Furthermore, electric hydraulic cylinders are symmetrically and fixedly connected to the fixed seat. The output end of the electric hydraulic cylinder is fixedly connected with a plugging ring. Plugging protrusions are symmetrically and fixedly connected to both sides of the plugging ring. Second plugging grooves are symmetrically formed inside the connecting ring. First plugging grooves are symmetrically formed outside the mounting seat. The plugging ring is slidably connected with the connecting ring and the mounting seat.

[0017] Through the above technical solution, the electric hydraulic cylinder can push the plugging ring to move upward. Through the plugging protrusions on the plugging ring, the driving force of the stepper motor can be transmitted to the connecting ring, so that the connecting ring can rotate simultaneously. The originally staggered first liquid guide holes and second liquid guide holes can be aligned through the rotation of the connecting ring. Then the sewage after the rotary cleaning can flow out along the sewage guide pipe and is uniformly collected through the sewage receiving tank.

[0018] Further, the flushing and cleaning assembly includes a cleaning water tank fixedly connected to the upper end of the fixed plate. An inlet is fixedly connected to the cleaning water tank. A liquid extraction pump is fixedly installed on one side of the cleaning water tank. A flushing pipeline is fixedly connected to the liquid extraction pump. The upper end of the inner housing is fixedly connected to a flushing seat. A circulation hole is formed in the flushing seat. The flushing pipeline communicates with the circulation hole. A plurality of groups of water spraying nozzles are evenly and fixedly installed on the side of the flushing seat away from the inner housing.

[0019] Through the above technical solution, while the inner housing rotates, the liquid extraction pump pumps the cleaning water in the cleaning water tank into the flushing pipeline, enters the water spraying nozzles through the circulation holes on the flushing seat. Further, the water spraying nozzles can flush the pollutants on the outer side of the ultrafiltration membrane module.

[0020] The beneficial effects of the present invention are as follows: (1) By designing a supporting pneumatic rotation assembly, a cleaning assembly and a flushing and cleaning assembly, the high-pressure gas input from the high-pressure air inlet pipe can drive the rotating housing to rotate through the air guiding plate, and then drive the cleaning brush to rotate to clean the outer side of the ultrafiltration membrane module. The rotating housing drives the cleaning brush to do a circular motion, which can evenly cover the entire outer surface of the ultrafiltration membrane module, avoiding the randomness and omission of manual cleaning, realizing full-area standardized cleaning, and improving the cleaning uniformity. Traditional backwashing relies on a large amount of water flowing in the reverse direction for flushing, while the pneumatic rotation assembly drives the cleaning assembly to move with high-pressure gas. Finally, only a small amount of water from the flushing and cleaning assembly is needed to assist in flushing and stripping the dirt. In contrast, the water saving rate can be greatly improved. At the same time, the pneumatic drive system usually has lower energy consumption than the electric drive system, and the power consumption is lower. (2) By designing the cleaning assembly, the stepping motor drive can drive a plurality of groups of cleaning brushes to move towards the ultrafiltration membrane module at the same time, and then realize subsequent rotating cleaning. After the cleaning is completed, it can return to the original position to avoid affecting the water purification work of the subsequent device. At the same time, through the insertion bumps on the insertion ring, the driving force of the stepping motor can be transmitted to the connecting ring, so that the connecting ring rotates simultaneously. The first liquid guiding hole and the second liquid guiding hole can be aligned. Then, the sewage after the rotating cleaning can flow out along the sewage guiding pipe and is collected uniformly through the sewage receiving tank. When the plurality of groups of cleaning brushes return to the original position after cleaning, the first liquid guiding hole and the second liquid guiding hole are misaligned again to prevent the water to be filtered in the inner housing from flowing out. Description of the Drawings

[0021] Figure 1 is the first perspective three-dimensional structure diagram of the present invention;

[0022] Figure 2 is the second perspective three-dimensional structure diagram of the present invention;

[0023] Figure 3 is the cross-sectional view of the present invention;

[0024] Figure 4It is the internal structure diagram of the installation housing of the present invention;

[0025] Figure 5 It is the cross-sectional view of the pneumatic rotating assembly of the present invention;

[0026] Figure 6 It is the cross-sectional view of the cleaning assembly of the present invention;

[0027] Figure 7 It is the exploded structure diagram of the cleaning assembly of the present invention;

[0028] Figure 8 It is the three-dimensional structure diagram of the turntable of the present invention;

[0029] Figure 9 It is the internal structure diagram of the flushing and cleaning assembly of the present invention;

[0030] Figure 10 It is the present invention Figure 9 The enlarged structure diagram of part A.

[0031] Reference numerals: 1. Installation housing; 10. Upper fixed housing; 11. Fixing plate; 12. Lower fixed housing; 13. Sewage guiding pipe; 14. Discharge valve; 15. Connection seat; 16. Fixing frame; 17. Fixing base; 2. Support assembly; 20. Support ring seat; 21. Support feet; 22. Support base; 23. Sewage receiving tank; 3. Pneumatic rotating assembly; 30. High-pressure air inlet pipe; 31. Air inlet connection frame; 32. High-pressure air source; 33. Inner housing; 34. Rotating housing; 35. Air guiding plate; 36. Magnetic pole strip; 4. Cleaning assembly; 40. Stepper motor; 41. Mounting seat; 42. First plug-in slot; 43. Turntable; 44. Arc-shaped groove; 45. Limiting block; 46. Connection bottom plate; 47. Cleaning mounting seat; 48. Cleaning brush; 49. Guide plate; 410. Connection ring; 411. First liquid guiding hole; 412. Second plug-in slot; 413. Connection ring seat; 414. Second liquid guiding hole; 415. Electric hydraulic cylinder; 416. Plug-in ring; 417. Plug-in convex block; 5. Ultrafiltration membrane assembly; 51. Liquid inlet pipe; 52. Water outlet pipe; 6. Flushing and cleaning assembly; 60. Cleaning water tank; 61. Water inlet; 62. Liquid extraction pump; 63. Flushing pipe; 64. Flushing seat; 65. Flow-through hole; 66. Spraying nozzle. Detailed implementation manners

[0032] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0033] As Figures 1-3As shown, a large-scale ultrafiltration water purification device of the present embodiment comprises an installation shell 1, an upper fixed shell 10 is fixedly installed on the upper end of the installation shell 1, a lower fixed shell 12 is fixedly installed on the lower end of the installation shell 1, a fixed plate 11 is fixedly connected to the upper end of the inner wall of the installation shell 1, a sewage guide pipe 13 is fixedly installed on the lower end of the lower fixed shell 12, a discharge valve 14 is fixedly installed on the sewage guide pipe 13, and a support assembly 2 is fixedly arranged on the lower end of the lower fixed shell 12; an ultrafiltration membrane assembly 5 is fixedly connected to the lower end of the fixed plate 11, an ultrafiltration membrane is installed in the ultrafiltration membrane assembly 5, an outlet pipe 52 is fixedly installed on the upper end of the ultrafiltration membrane assembly 5, a water pump is fixedly installed on the end of the outlet pipe 52 away from the ultrafiltration membrane assembly 5, an inlet pipe 51 is fixedly installed on the upper fixed shell 10, a pneumatic rotating assembly 3 is arranged on one side of the installation shell 1, and an ultrafiltration membrane assembly 5 is fixedly installed on the upper end of the ultrafiltration membrane assembly 5. An inner shell 33 is rotatably connected inside the shell 1; a connecting seat 15 is fixedly installed inside the lower fixed shell 12, a fixing frame 16 is fixedly connected to the connecting seat 15, a fixing frame 16 is fixedly connected to a fixing seat 17, a cleaning component 4 is installed on the fixing seat 17, a flushing cleaning component 6 is arranged in the upper fixed shell 10, and the pneumatic rotating component 3 drives the cleaning component 4 to move with high-pressure gas. Finally, only a small amount of water is needed to flush the cleaning component 6 to assist in flushing the peeled dirt. In comparison, the water saving rate can be greatly improved; the supporting component 2 includes a supporting ring seat 20 fixedly installed on the outer wall of the lower fixed shell 12, a plurality of supporting feet 21 are fixedly installed on the circumference of the lower end of the supporting ring seat 20, and a supporting base 22 is fixedly connected to the end of the supporting foot 21 away from the supporting ring seat 20, and a sewage tank 23 is arranged in the supporting base 22.

[0034] like Figures 1-5 As shown, the pneumatic rotating assembly 3 includes a high-pressure air intake pipe 30 fixedly connected to the mounting shell 1, an air intake connecting frame 31 is fixedly installed on one side of the high-pressure air intake pipe 30, and a high-pressure gas source 32 is connected to the air intake connecting frame 31 through multiple sets of fixing bolts, a rotating shell 34 is fixedly installed on the outer side of the inner shell 33, and a plurality of evenly distributed air guide plates 35 are also fixedly connected to the outer side of the rotating shell 34, and an iron bar is fixedly connected to one side of the air guide plate 35. The high-pressure gas input by the high-pressure air intake pipe 30 can drive the rotating shell 34 to rotate through the air guide plate 35, thereby driving the cleaning brush 48 to rotate. The outside of the ultrafiltration membrane assembly 5 is cleaned; the high-pressure air inlet pipe 30 is connected to the inside of the installation shell 1, and the air inlet channel of the high-pressure air inlet pipe 30 is arranged in a tangent structure with the installation shell 1, and a plurality of magnetic pole bars 36 are embedded and installed on the inner wall of the installation shell 1. When the high-pressure air inlet pipe 30 stops supplying air, the rotation speed of the rotating shell 34 will begin to slow down. When the rotation speed slows to a certain extent, under the influence of the magnetic attraction of the magnetic pole bars 36, the plurality of air guide plates 35 on the rotating shell 34 will be attracted by the magnetic force of the magnetic pole bars 36, so that each magnetic pole bar 36 can attract and fix the corresponding air guide plate 35.

[0035] like Figures 1-8As shown, the cleaning assembly 4 includes a stepper motor 40 fixedly connected to the fixed seat 17. The output end of the stepper motor 40 is fixedly connected with a mounting seat 41 and a turntable 43. A plurality of arc-shaped grooves 44 are evenly arranged on the circumference of the turntable 43. A plurality of limiting blocks 45 are respectively slidably connected in the plurality of arc-shaped grooves 44. A connecting bottom plate 46 is fixedly connected to the limiting block 45. A cleaning mounting seat 47 is fixedly installed on the connecting bottom plate 46. A cleaning brush 48 is fixedly connected to the cleaning mounting seat 47. First liquid guide holes 411 are arranged on both sides of the cleaning brush 48. The first liquid guide holes 411 are fixedly installed with the inner housing 33. The cleaning mounting seat 47 is slidably connected with the first liquid guide holes 411. The output end of the stepper motor 40 drives the mounting seat 41 and the turntable 43 to rotate. Through the limitation of the arc-shaped grooves 44 on the turntable 43, the limiting block 45 can drive the cleaning brush 48 on the cleaning mounting seat 47 to move towards the ultrafiltration membrane module 5. A connecting ring seat 413 is fixedly connected in the lower fixed housing 12. Second liquid guide holes 414 are evenly arranged on the connecting ring seat 413. A connecting ring 410 is rotatably connected to the connecting ring seat 413. First liquid guide holes 411 are evenly arranged on the connecting ring 410. The first liquid guide holes 411 and the second liquid guide holes 414 can be aligned through rotation. Sewage can flow out along the sewage guiding pipe 13. When the first liquid guide holes 411 and the second liquid guide holes 414 are staggered from each other, the sewage outflow channel can be closed to prevent the water to be filtered in the inner housing 33 from flowing out.

[0036] As Figures 1-7 shown, electric hydraulic cylinders 415 are symmetrically and fixedly connected to the fixed seat 17. The output ends of the electric hydraulic cylinders 415 are fixedly connected with a plugging ring 416. Plugging protrusions 417 are symmetrically and fixedly connected to both sides of the plugging ring 416. Second plugging grooves 412 are symmetrically arranged on the inner side of the connecting ring 410. First plugging grooves 42 are symmetrically arranged on the outer side of the mounting seat 41. The plugging ring 416 is slidably connected with the connecting ring 410 and the mounting seat 41. The electric hydraulic cylinders 415 can push the plugging ring 416 to move upward. Through the plugging protrusions 417 on the plugging ring 416, the driving force of the stepper motor 40 can be transmitted to the connecting ring 410, so that the connecting ring 410 rotates simultaneously. The originally staggered first liquid guide holes 411 and second liquid guide holes 414 can be aligned through the rotation of the connecting ring 410. Then, the sewage after the rotary cleaning can flow out along the sewage guiding pipe 13 and is uniformly collected by the sewage receiving tank 23.

[0037] As Figures 1-10As shown in the figure, the flushing and cleaning assembly 6 includes a cleaning water tank 60 fixedly connected to the upper end of the fixing plate 11. An inlet 61 is fixedly connected to the cleaning water tank 60. A liquid extraction pump 62 is fixedly installed on one side of the cleaning water tank 60. A flushing pipe 63 is fixedly connected to the liquid extraction pump 62. A flushing seat 64 is fixedly connected to the upper end of the inner housing 33. A circulation hole 65 is formed in the flushing seat 64. The flushing pipe 63 communicates with the circulation hole 65. A plurality of groups of water spraying nozzles 66 are evenly and fixedly installed on the side of the flushing seat 64 away from the inner housing 33. While the inner housing 33 rotates, the liquid extraction pump 62 pumps the cleaning water in the cleaning water tank 60 into the flushing pipe 63, and enters the water spraying nozzles 66 through the circulation hole 65 on the flushing seat 64. Further, the water spraying nozzles 66 can wash away the pollutants on the outer side of the ultrafiltration membrane module 5.

[0038] The working principle of this embodiment is as follows. When the ultrafiltration membrane module 5 needs to be cleaned, the stepping motor 40 is started. The output end of the stepping motor 40 drives the mounting seat 41 and the turntable 43 to rotate. Through the limitation of the arc-shaped groove 44 on the turntable 43, the limit block 45 can drive the cleaning brush 48 on the cleaning mounting seat 47 to move towards the ultrafiltration membrane module 5. The high-pressure air source 32 is started, and high-pressure air is input into the mounting housing 1 through the high-pressure air inlet pipe 30. After the high-pressure air enters the mounting housing 1 through the high-pressure air inlet pipe 30, the high-speed air flow will push a plurality of guide vanes 35 to rotate along the tangential direction, and then can drive the guide plate 49 on the inner housing 33 to rotate, so that a plurality of groups of cleaning brushes 48 rotate and clean the ultrafiltration membrane module 5.

[0039] While the inner housing 33 rotates, the liquid extraction pump 62 pumps the cleaning water in the cleaning water tank 60 into the flushing pipe 63, and enters the water spraying nozzles 66 through the circulation hole 65 on the flushing seat 64. Further, the water spraying nozzles 66 can wash away the pollutants on the outer side of the ultrafiltration membrane module 5.

[0040] The electric hydraulic cylinder 415 is started. The electric hydraulic cylinder 415 can push the plugging ring 416 to move upward. Through the plugging convex block 417 on the plugging ring 416, the driving force of the stepping motor 40 can be transmitted to the connecting ring 410, so that the connecting ring 410 rotates simultaneously. The originally staggered first liquid guiding holes 411 and second liquid guiding holes 414 can be aligned through the rotation of the connecting ring 410. Then, the sewage after the rotary cleaning can flow out along the sewage guiding pipe 13, and is collected uniformly by the sewage receiving tank 23. When the plurality of groups of cleaning brushes 48 return to their original positions after cleaning, the cleaning brush 48 drives the turntable 43 to rotate through the limit block 45, so that the mounting seat 41 transmits the power to the connecting ring 410 through the plugging of the plugging convex block 417, and the first liquid guiding hole 411 and the second liquid guiding hole 414 are staggered again to prevent the water to be filtered in the inner housing 33 from flowing out.

[0041] The above are only the preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention.

Claims

1. A large ultrafiltration water purification device, including an installation housing (1), characterized in that, An upper fixed shell (10) is fixedly mounted on the upper end of the mounting shell (1), a lower fixed shell (12) is fixedly mounted on the lower end of the mounting shell (1), a fixing plate (11) is fixedly connected to the upper end of the inner wall of the mounting shell (1), a sewage guide pipe (13) is fixedly mounted on the lower end of the lower fixed shell (12), a discharge valve (14) is fixedly mounted on the sewage guide pipe (13), and a support assembly (2) is fixedly arranged on the lower end of the lower fixed shell (12); The lower end of the fixed plate (11) is fixedly connected to an ultrafiltration membrane assembly (5), an ultrafiltration membrane is installed in the ultrafiltration membrane assembly (5), an outlet pipe (52) is fixedly installed on the upper end of the ultrafiltration membrane assembly (5), a water pump is fixedly installed on the end of the outlet pipe (52) away from the ultrafiltration membrane assembly (5), a liquid inlet pipe (51) is fixedly installed on the upper fixed shell (10), a pneumatic rotating assembly (3) is provided on one side of the installation shell (1), and an inner shell (33) is rotatably connected in the installation shell (1); A connecting seat (15) is fixedly installed in the lower fixed shell (12), a fixing frame (16) is fixedly connected to the connecting seat (15), a fixing seat (17) is fixedly connected to the fixing frame (16), a cleaning component (4) is installed on the fixing seat (17), and a flushing cleaning component (6) is arranged in the upper fixed shell (10).

2. The large ultrafiltration water purification device according to claim 1, wherein, The support assembly (2) comprises a support ring seat (20) fixedly mounted on the outer wall of the lower fixed shell (12); a plurality of groups of support feet (21) are fixedly mounted on the circumference of the lower end of the support ring seat (20); one end of the support feet (21) away from the support ring seat (20) is fixedly connected to a support base (22); a sewage receiving tank (23) is arranged inside the support base (22).

3. The large ultrafiltration water purification device according to claim 1, characterized in that, The pneumatic rotating assembly (3) comprises a high-pressure air intake pipe (30) fixedly connected to the mounting shell (1); an air intake connecting frame (31) is fixedly mounted on one side of the high-pressure air intake pipe (30); a high-pressure air source (32) is connected to the air intake connecting frame (31) via a plurality of sets of fixing bolts; a rotating shell (34) is fixedly mounted on the outer side of the inner shell (33); a plurality of evenly distributed air guide plates (35) are also fixedly connected to the outer side of the rotating shell (34); an iron bar is fixedly connected to one side of the air guide plate (35).

4. The large ultrafiltration water purification equipment according to claim 3, characterized in that, The high-pressure air intake pipe (30) is connected to the inside of the installation shell (1), and the air intake channel of the high-pressure air intake pipe (30) and the installation shell (1) are arranged in a tangent structure, and a plurality of magnetic pole bars (36) are embedded and installed on the circumferential side of the inner wall of the installation shell (1).

5. The large ultrafiltration water purification equipment according to claim 1, wherein The cleaning component (4) includes a stepping motor (40) fixedly connected to the fixed seat (17). The output end of the stepping motor (40) is fixedly connected with a mounting seat (41) and a turntable (43). A plurality of arc-shaped grooves (44) are evenly formed in the circumferential direction of the turntable (43). A plurality of limiting blocks (45) are respectively slidably connected in the plurality of arc-shaped grooves (44). A connecting bottom plate (46) is fixedly connected to the limiting block (45). A cleaning mounting seat (47) is fixedly installed on the connecting bottom plate (46). A cleaning brush (48) is fixedly connected to the cleaning mounting seat (47). First liquid guide holes (411) are arranged on both sides of the cleaning brush (48). The first liquid guide holes (411) are fixedly installed with the inner shell (33). The cleaning mounting seat (47) is slidably connected with the first liquid guide holes (411).

6. The large ultrafiltration water purification equipment according to claim 5, wherein, A connecting ring seat (413) is fixedly connected inside the lower fixed shell (12). Second liquid guide holes (414) are evenly formed in the connecting ring seat (413). A connecting ring (410) is rotatably connected to the connecting ring seat (413). First liquid guide holes (411) are evenly formed in the connecting ring (410).

7. The large ultrafiltration water purification device according to claim 6, characterized in that, Electric hydraulic cylinders (415) are symmetrically and fixedly connected to the fixed seat (17). The output end of the electric hydraulic cylinder (415) is fixedly connected with a plugging ring (416). Plugging protrusions (417) are symmetrically and fixedly connected to both sides of the plugging ring (416). Second plugging grooves (412) are symmetrically formed inside the connecting ring (410). First plugging grooves (42) are symmetrically formed outside the mounting seat (41). The plugging ring (416) is slidably connected with the connecting ring (410) and the mounting seat (41).

8. The large ultrafiltration water purification equipment according to claim 1, characterized in that The flushing and cleaning component (6) includes a cleaning water tank (60) fixedly connected to the upper end of the fixing plate (11). A water inlet (61) is fixedly connected to the cleaning water tank (60). A liquid extraction pump (62) is fixedly installed on one side of the cleaning water tank (60). A flushing pipeline (63) is fixedly connected to the liquid extraction pump (62). A flushing seat (64) is fixedly connected to the upper end of the inner shell (33). A circulation hole (65) is formed in the flushing seat (64). The flushing pipeline (63) communicates with the circulation hole (65). A plurality of water spraying nozzles (66) are evenly and fixedly installed on one side of the flushing seat (64) away from the inner shell (33).

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