An automatic backwashing filtration device with a dual centrifugal and dual-net structure

Abstract

This invention discloses an automatic backwashing filtration device with a dual centrifugal and dual-net structure, including a water storage cylinder with a second connecting pipe fixedly connected to it. This invention employs an innovative architecture of centrifugal sedimentation + dual-net graded filtration: high-speed rotation inside the filter cylinder generates centrifugal force to separate large particles such as silt and organic matter from the water; the double-layer stainless steel filter inside the filter cylinder precisely intercepts suspended solids, adapting to different water qualities; the operation of the first and second cylinders respectively drives the movement of the first and second support columns, thereby adjusting the height of the water storage cylinder and providing flexibility for different installation scenarios; the first sliding plate slides into the groove of the second sliding plate, and the first connecting plate and the enclosed cavity form a closed space, preventing the second solenoid valve from being affected by environmental dust, moisture, or electromagnetic interference, avoiding abnormal control signals, and improving the stability and reliability of the equipment operation.

Description

Technical Field

[0001] This invention relates to the field of filtration device technology, specifically to an automatic backwashing filtration device with a dual centrifugal and dual-net structure. Background Technology

[0002] The core advantage of automatic backwashing filtration equipment with a dual centrifugal and dual-mesh structure lies in its multi-stage interception and automatic regeneration capabilities. It pre-removes large particles through centrifugal force, protecting the precision dual-layer filter screen. The dual-mesh structure, combined with automatic backwashing, ensures high-precision filtration while solving the clogging problem. For industrial scenarios with fluctuating water quality, high impurity levels, and continuous water supply requirements, it is a highly cost-effective choice. Integrating the centrifugal separator and dual-mesh filter into a single cylinder (or a compact combination) results in a small footprint and easy installation, making it particularly suitable for circulating cooling water systems, wastewater treatment and reuse systems, and surface water intake systems in industries such as metallurgy, chemical engineering, power generation, and mining. It efficiently removes suspended solids, particulate matter, and some colloids from the water, effectively preventing scaling, clogging, and wear on downstream equipment such as heat exchangers, nozzles, pumps, and valves, extending the service life of the entire pipeline system. The filter elements typically use 304 / 316L stainless steel wedge mesh or high-strength metal mesh, with a service life of 10-20 years, eliminating the need for frequent filter element replacements like traditional bag or cartridge filters, saving significant consumable costs.

[0003] However, currently available automatic backwashing filter devices have several significant drawbacks: First, the core filtration system lacks a composite architecture combining centrifugal sedimentation and dual-network staged filtration, making it difficult to achieve efficient solid-liquid separation and multi-stage fine filtration when dealing with high turbidity or complex media, easily causing filter clogging and affecting filtration accuracy. Second, the overall height of the device is not adjustable, lacking flexibility to adapt to different installation scenarios, especially in situations with significant differences in pipeline layout, where height mismatch may lead to installation difficulties or reduced filtration efficiency. Finally, the solenoid valve, as a core component of the control system, lacks necessary protective devices (such as waterproof covers, dustproof shells, or anti-interference shielding), making it highly susceptible to environmental dust, moisture, or electromagnetic interference, leading to abnormal control signals, disordered flushing procedures, or even component damage, seriously threatening the stability and reliability of the equipment operation. Therefore, designing an automatic backwashing filter device with a dual centrifugal and dual-network structure is essential. Summary of the Invention

[0004] The purpose of this invention is to provide an automatic backwashing filtration device with a dual centrifugal and dual-net structure to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an automatic backwashing filtration device with a double centrifugal double-net structure, comprising a water storage cylinder, a filter cylinder, and a drain valve. A second connecting pipe is fixedly connected to the water storage cylinder, and a second fixed flange and a second solenoid valve are provided on the second connecting pipe. The second connecting pipe is fixedly connected to the filter cylinder, and a first connecting pipe is fixedly connected to the filter cylinder. A first fixed flange is provided on the first connecting pipe, and a water passage cylinder is fixedly connected to the first connecting pipe. A water outlet is fixedly connected to the water passage cylinder, and a first solenoid valve is provided on the water outlet. A drain port is fixedly connected to the filter cylinder, and a drain valve is provided on the drain port. A top cover is provided on the water passage cylinder, and a lifting ring is fixedly connected to the top cover.

[0006] As a further technical solution of the present invention, a first support column is fixedly connected to the water-passing cylinder, and a first cylinder is fixedly connected to the first support column.

[0007] As a further technical solution of the present invention, the first cylinder is fixedly connected in the groove of the first bottom column, and a first support column is slidably connected in the groove of the first bottom column.

[0008] As a further technical solution of the present invention, a second support column is fixedly connected to the water storage cylinder, and a second cylinder is fixedly connected to the second support column.

[0009] As a further technical solution of the present invention, a second bottom column is fixedly connected to the second cylinder, and a second support column is slidably connected in the groove of the second bottom column.

[0010] As a further technical solution of the present invention, the water storage cylinder is provided with a water inlet, a third connecting pipe is fixedly connected to the water inlet, a fourth connecting pipe is fixedly connected to the third connecting pipe, a centrifuge is fixedly connected to the fourth connecting pipe, a cylindrical body is fixedly connected to the centrifuge, and a water inlet and a sewage outlet are fixedly connected to the cylindrical body.

[0011] As a further technical solution of the present invention, a first sliding ring and a second sliding ring are slidably connected on the second connecting pipe, a closed cavity is fixedly connected on the first sliding ring, and a second sliding plate is fixedly connected on the closed cavity.

[0012] As a further technical solution of the present invention, a first sliding plate is slidably connected in the groove of the second sliding plate, the first sliding plate is fixedly connected to a first connecting plate, and the first connecting plate is fixedly connected to a second sliding ring.

[0013] As a further technical solution of the present invention, the first connecting plate is fixedly connected to a second fixed shaft, and a snap ring is rotatably connected to the second fixed shaft, and the snap ring snaps onto a sliding column.

[0014] As a further technical solution of the present invention, the sliding column is fixedly connected to a limiting plate, one end of a spring is fixedly connected to the limiting plate, and the other end of the spring is fixedly connected to a sliding groove, which is formed on a first fixed shaft.

[0015] Compared with existing technologies, the beneficial effects of this invention are as follows: This automatic backwashing filtration device with a dual centrifugal and dual-net structure incorporates core technologies including dual centrifugal vortex technology, a dual-net tank filtration structure, and an intelligent automatic control system. The dual centrifugal vortex technology utilizes a two-stage centrifugal device to separate large particles of impurities through the centrifugal force of water flow, reducing the burden on the filter screen, increasing its efficiency, and extending its service life. The dual-net tank structure employs an alternating working mode to achieve non-stop backwashing, ensuring continuous filtration and increasing irrigation efficiency. The automatic control system integrates both differential pressure and time control methods. Differential pressure control automatically initiates backwashing when the filter screen is clogged, while time control is suitable for stable water quality scenarios. The combination of these two methods achieves intelligent operation. It adopts an innovative architecture of centrifugal sedimentation + dual-net graded filtration: First-stage centrifugal separation: High-speed rotation inside the filter cylinder generates centrifugal force, separating large particles such as silt and organic matter from the water, increasing efficiency by more than 30%; Second-stage mesh filtration: Double-layer stainless steel filters inside the filter cylinder... The net precisely intercepts suspended solids and is adaptable to different water qualities. It integrates a pressure sensor and PLC control system, automatically identifying blockages and initiating backwashing. Water consumption is only 1 / 5 that of traditional equipment. The first and second cylinders operate, driving the first and second support columns respectively, thus adjusting the height of the water storage tank. This provides flexibility for different installation scenarios, especially in situations with significant differences in pipe layout, avoiding installation difficulties or reduced filtration efficiency due to height mismatch. Sliding the first and second sliding rings on the second connecting pipe slides the first sliding plate into the groove of the second sliding plate. Pressing the sliding column presses it into the sliding groove. Rotating the locking ring engages the sliding column into the through hole of the locking ring, completing the locking process. The first connecting plate and the enclosed cavity form a closed space, preventing the second solenoid valve from being affected by environmental dust, moisture, or electromagnetic interference, thus avoiding abnormal control signals, flushing program disruptions, or even component damage, improving the stability and reliability of the equipment. Attached Figure Description

[0016] Figure 1 This is a front view of the overall structure of the present invention; Figure 2 for Figure 1 A magnified view of a portion of region A in the middle; Figure 3 This is a partial three-dimensional schematic diagram of the present invention; Figure 4 This is a partial cross-sectional view of the first base column of the present invention; Figure 5 This is a partial cross-sectional view of the second base column of the present invention; Figure 6 This is a partial cross-sectional view of the first fixed axis of the present invention.

[0017] In the diagram: 1. Water storage cylinder; 2. Water inlet; 3. First sliding plate; 4. First connecting plate; 5. Second sliding plate; 6. Enclosed cavity; 7. Lifting ring; 8. Top cover; 9. Filter cylinder; 10. Drain valve; 11. Drain outlet; 12. First fixed flange; 13. First connecting pipe; 14. First solenoid valve; 15. Water outlet; 16. Water-passing cylinder; 17. First support column; 18. First bottom column; 19. Second bottom column; 20. Second support column; 21. ... 21. Connecting pipe; 22. First sliding ring; 23. Second fixed flange; 24. Second sliding ring; 25. First fixed shaft; 26. Snap ring; 27. Sliding column; 28. Second fixed shaft; 29. ​​Second solenoid valve; 30. First cylinder; 31. Second cylinder; 32. Spring; 33. Limiting plate; 34. Sliding groove; 35. Third connecting pipe; 36. Fourth connecting pipe; 37. Centrifuge; 38. Cylindrical body; 39. Water inlet; 40. Sewage outlet. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] Please see the appendix Figure 1 - Appendix Figure 6An embodiment of the present invention provides an automatic backwashing filtration device with a double centrifugal double-net structure, comprising a water storage cylinder 1, a filter cylinder 9, and a drain valve 10. A second connecting pipe 21 is fixedly connected to the water storage cylinder 1, and a second fixed flange 23 and a second solenoid valve 29 are provided on the second connecting pipe 21. The second connecting pipe 21 is fixedly connected to the filter cylinder 9, and a first connecting pipe 13 is fixedly connected to the filter cylinder 9. A first fixed flange 12 is provided on the first connecting pipe 13, and a water passage cylinder 16 is fixedly connected to the first connecting pipe 13. A water outlet 15 is fixedly connected to the water passage cylinder 16. A first solenoid valve 14 is installed on the filter cylinder 15. A drain port 11 is fixedly connected to the filter cylinder 9, and a drain valve 10 is installed on the drain port 11. A top cover 8 is installed on the water-passing cylinder 16, and a lifting ring 7 is fixedly connected to the top cover 8 for easy opening. A first support column 17 is fixedly connected to the water-passing cylinder 16, and a first cylinder 30 is fixedly connected to the first support column 17. The first cylinder 30 is fixedly connected to the groove of the first bottom column 18, and the first support column 17 is slidably connected to the groove of the first bottom column 18. A second support column 20 is fixedly connected to the water storage cylinder 1, and a second cylinder 30 is fixedly connected to the second support column 20. 1; A second base column 19 is fixedly connected to the second cylinder 31, and a second support column 20 is slidably connected in the groove of the second base column 19; A water inlet 2 is provided on the water storage cylinder 1, a third connecting pipe 35 is fixedly connected to the water inlet 2, a fourth connecting pipe 36 is fixedly connected to the third connecting pipe 35, a centrifuge 37 is fixedly connected to the fourth connecting pipe 36, a cylindrical cylinder 38 is fixedly connected to the centrifuge 37, and a water inlet 39 and a sewage outlet 40 are fixedly connected to the cylindrical cylinder 38; A first sliding ring 22 and a second sliding ring 24 are slidably connected to the second connecting pipe 21, and a seal is fixedly connected to the first sliding ring 22. A closed cavity 6 is provided, and a second sliding plate 5 is fixedly connected to the closed cavity 6. A first sliding plate 3 is slidably connected in the groove of the second sliding plate 5. The first sliding plate 3 is fixedly connected to a first connecting plate 4, and the first connecting plate 4 is fixedly connected to a second sliding ring 24. A second fixed shaft 28 is fixedly connected to the first connecting plate 4. A snap ring 26 is rotatably connected to the second fixed shaft 28, and a sliding post 27 is snapped into the snap ring 26. A limiting plate 33 is fixedly connected to the sliding post 27. One end of a spring 32 is fixedly connected to the limiting plate 33, and the other end of the spring 32 is fixedly connected to a sliding groove 34, which is formed on the first fixed shaft 25.

[0020] Working Principle: During operation, the core technologies include dual centrifugal cyclone technology, a dual-mesh tank filtration structure, and an intelligent automatic control system. The dual centrifugal cyclone technology utilizes a two-stage centrifugal device to separate large particles of impurities through the centrifugal force of the water flow in centrifuge 37, reducing the burden on the filter screen, increasing its efficiency, and extending its service life. The dual-mesh tank structure employs an alternating working mode, enabling backwashing without stopping the machine, ensuring continuous filtration and increasing irrigation efficiency. The automatic control system integrates both differential pressure and time control methods. Differential pressure control automatically initiates backwashing when the filter screen becomes clogged, while time control is suitable for stable water quality scenarios. The combination of these two methods achieves intelligent operation, employing an innovative architecture of centrifugal sedimentation + dual-mesh staged filtration: First-stage centrifugal separation: High-speed rotation inside the filter cylinder 9 generates centrifugal force, separating large particles such as silt and organic matter from the water, increasing efficiency by over 30%. Second-stage mesh filtration: The double-layer stainless steel filter screen inside the filter cylinder 9 precisely intercepts suspended solids, adapting to different water qualities. It also integrates a pressure sensor and PLC. The control system automatically identifies blockages and initiates backwashing, consuming only 1 / 5 the water of traditional equipment. The first cylinder 30 and the second cylinder 31 operate, driving the first support column 17 and the second support column 20 to adjust the height of the water storage cylinder 1. This provides flexibility for different installation scenarios, especially in situations with significant differences in pipe layout, preventing installation difficulties or reduced filtration efficiency due to height mismatch. Sliding the first sliding ring 22 and the second sliding ring 24 on the second connecting pipe 21 slides the first sliding plate 3 into the groove of the second sliding plate 5. Pressing the sliding column 27 presses it into the sliding groove 34. Rotating the locking ring 26 engages the sliding column 27 into the through hole of the locking ring 26, completing the locking process. The first connecting plate 4 and the enclosed cavity 6 form a closed space, preventing the second solenoid valve 29 from being affected by environmental dust, moisture, or electromagnetic interference, thus avoiding abnormal control signals, disordered flushing procedures, or even component damage, improving the stability and reliability of the equipment operation.

[0021] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. An automatic backwashing filtration device with a double centrifugal double-net structure, comprising a water storage cylinder (1), a filter cylinder (9), and a drain valve (10), characterized in that: The water storage cylinder (1) is fixedly connected to a second connecting pipe (21), and a second fixed flange (23) and a second solenoid valve (29) are provided on the second connecting pipe (21). The second connecting pipe (21) is fixedly connected to the filter cylinder (9). The filter cylinder (9) is fixedly connected to a first connecting pipe (13), and a first fixed flange (12) is provided on the first connecting pipe (13). The first connecting pipe (13) is fixedly connected to a water-passing cylinder (16), and a water outlet (15) is fixedly connected on the water-passing cylinder (16). A first solenoid valve (14) is provided on the water outlet (15). The filter cylinder (9) is fixedly connected to a sewage outlet (11), and a sewage valve (10) is provided on the sewage outlet (11). The water-passing cylinder (16) is provided with a top cover (8), and a lifting ring (7) is fixedly connected to the top cover (8).

2. The automatic backwashing filtration device with a dual centrifugal and dual-net structure according to claim 1, characterized in that: A first support column (17) is fixedly connected to the water-passing cylinder (16), and a first cylinder (30) is fixedly connected to the first support column (17).

3. The automatic backwashing filtration device with a dual centrifugal and dual-net structure according to claim 2, characterized in that: The first cylinder (30) is fixedly connected in the groove of the first bottom column (18), and the first support column (17) is slidably connected in the groove of the first bottom column (18).

4. The automatic backwashing filter device with a dual centrifugal and dual-net structure according to claim 1, characterized in that: A second support column (20) is fixedly connected to the water storage cylinder (1), and a second cylinder (31) is fixedly connected to the second support column (20).

5. An automatic backwashing filtration device with a dual centrifugal and dual-net structure according to claim 4, characterized in that: A second bottom column (19) is fixedly connected to the second cylinder (31), and a second support column (20) is slidably connected in the groove of the second bottom column (19).

6. An automatic backwashing filter with a dual centrifugal and dual-net structure according to claim 4, characterized in that: The water storage cylinder (1) is provided with a water inlet (2), a third connecting pipe (35) is fixedly connected to the water inlet (2), a fourth connecting pipe (36) is fixedly connected to the third connecting pipe (35), a centrifuge (37) is fixedly connected to the fourth connecting pipe (36), a cylindrical body (38) is fixedly connected to the centrifuge (37), and a water inlet (39) and a sewage outlet (40) are fixedly connected to the cylindrical body (38).

7. The automatic backwashing filter device with a dual centrifugal and dual-net structure according to claim 1, characterized in that: The second connecting pipe (21) is slidably connected to a first sliding ring (22) and a second sliding ring (24). A closed cavity (6) is fixedly connected to the first sliding ring (22), and a second sliding plate (5) is fixedly connected to the closed cavity (6).

8. An automatic backwashing filter device with a dual centrifugal and dual-net structure according to claim 7, characterized in that: The first sliding plate (3) is slidably connected in the groove of the second sliding plate (5). The first sliding plate (3) is fixedly connected to the first connecting plate (4). The first connecting plate (4) is fixedly connected to the second sliding ring (24).

9. An automatic backwashing filtration device with a dual centrifugal and dual-net structure according to claim 8, characterized in that: The first connecting plate (4) is fixedly connected to a second fixed shaft (28), and a snap ring (26) is rotatably connected to the second fixed shaft (28), and a sliding column (27) is snapped onto the snap ring (26).

10. An automatic backwashing filtration device with a dual centrifugal and dual-net structure according to claim 9, characterized in that: The sliding column (27) is fixedly connected to a limiting plate (33), and one end of a spring (32) is fixedly connected to the limiting plate (33). The other end of the spring (32) is fixedly connected to a sliding groove (34), which is opened on the first fixed shaft (25).

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