An adjustable precision y-type filter and method of use

Abstract

The application discloses a Y-shaped filter with adjustable precision and a use method thereof, which comprises a filter, a water inlet pipe and a water outlet pipe. The filter comprises a barrel body, one end of the water inlet pipe is connected with a bottom opening of the barrel body, and one end of the water outlet pipe is connected with a side wall opening of the barrel body. The filter further comprises a barrel cover, a motor, an outer filter barrel and an inner filter barrel. The outer filter barrel is fixedly installed in the barrel body, the inner filter barrel is located in the outer filter barrel, the motor is installed on the barrel cover, the motor is drivingly connected with a driving shaft, the driving shaft is connected with the inner filter barrel through a fixing piece, the motor can drive the inner filter barrel to rotate in the outer filter barrel through the driving shaft, and the side walls of the outer filter barrel and the inner filter barrel are provided with corresponding filter holes. The application can adjust the opening size of the filter holes according to the particle size of the filtered particles, so that the filtering precision can be adjusted.

Description

Technical Field

[0001] This invention relates to the field of filtration equipment technology, and more specifically, to a Y-type filter with adjustable precision and its method of use. Background Technology

[0002] Currently, Y-type filters are widely used in water supply and drainage, petroleum, chemical and other fields to remove impurities from fluids. Existing technology has the following limitations: Intuitive precision adjustment: lacking an angle feedback device, it cannot accurately control filtration precision; Limited adjustment direction: mostly unidirectional rotation adjustment, requiring manual reset to restore filtration. Summary of the Invention

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide an adjustable precision Y-type filter and its usage method.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] This invention discloses an adjustable precision Y-type filter, comprising a filter, an inlet pipe, and an outlet pipe. The filter includes a cylindrical body, one end of the inlet pipe being connected to the bottom opening of the cylindrical body, and one end of the outlet pipe being connected to the side wall opening of the cylindrical body. The filter also includes a cylinder cover, a motor, an outer filter cylinder, and an inner filter cylinder. The outer filter cylinder is fixedly installed inside the cylindrical body, and the inner filter cylinder is located inside the outer filter cylinder. The motor is mounted on the cylinder cover and is driven by a drive shaft. The drive shaft is connected to the inner filter cylinder through a fixing component. The motor can drive the inner filter cylinder to rotate inside the outer filter cylinder through the drive shaft. Corresponding filter holes are opened on the side walls of the outer and inner filter cylinders.

[0006] Furthermore, a fixing ring is connected to the inner wall of the cylinder, and an installation ring is connected to the outer edge of the upper end of the outer filter cylinder. The installation ring and the fixing ring are connected by bolts.

[0007] Furthermore, the fixing component includes a central disc and several connecting rods. The bottom end of the drive shaft is connected to the central disc by bolts. One end of the connecting rod is connected to the outer periphery of the central disc, and the other end is connected to the inner wall of the inner filter cylinder.

[0008] Furthermore, the cap includes a sleeve, a drive shaft passes through the sleeve, a scale is mounted on the sleeve, and a pointer is connected to the outer periphery of the drive shaft, with the pointer positioned above the scale.

[0009] Furthermore, the dial includes two mounting plates, with connecting blocks connected to opposite sides of the two mounting plates, and the corresponding connecting blocks on the two mounting plates are connected by bolts. A scale strip is provided on the upper part of the mounting plates.

[0010] Furthermore, the sleeve has an installation hole, and several packings are installed in the installation hole. The drive shaft passes through the packings, and a fixing block is connected to the lower part of the installation plate.

[0011] Furthermore, the cylinder cover includes a mounting sleeve, a support frame is connected between the mounting sleeve and the cylinder cover, a drive shaft is disposed through the mounting sleeve, and a bearing is disposed between the drive shaft and the mounting sleeve.

[0012] Furthermore, the bearing includes an outer ring and an inner ring. Balls are mounted between the outer and inner rings via a cage. An installation step is provided inside the mounting sleeve. The lower end of the outer ring abuts against the installation step. A stepped seat is provided on the portion of the drive shaft located inside the mounting sleeve. The lower end of the inner ring abuts against the stepped seat. A lock nut is threaded onto the drive shaft. The lower end of the lock nut abuts against the upper end of the inner ring, fixing the inner ring relative to the drive shaft. A pressure cap is bolted to the upper part of the mounting sleeve. A limit ring is connected to the lower part of the pressure cap. The lower end of the limit ring abuts against the upper end of the outer ring, fixing the outer ring relative to the mounting sleeve.

[0013] A method for using an adjustable precision Y-type filter includes the following steps:

[0014] S1. Determine the upper limit of the angle of the overlapping part of the filter pores based on the particle size of the filter particles.

[0015] S2, Calculate the critical flow velocity of the fluid through the filter orifice opening;

[0016] S3. Determine the lower limit of the angle of the overlapping part of the filter holes based on the critical flow velocity.

[0017] S4. Determine the motor adjustment angle based on the upper and lower angle limits.

[0018] The beneficial effect of this invention is that by rotating the inner filter cylinder relative to the outer filter cylinder, the size of the opening formed by the overlapping part of the filter holes of the two changes, allowing impurities of different particle sizes to pass through, thereby achieving adjustment of filtration accuracy. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of a Y-type filter with adjustable precision in this embodiment;

[0020] Figure 2 This is a cross-sectional view of the Y-type filter with adjustable precision in this embodiment;

[0021] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0022] Figure 4 for Figure 2 Enlarged view of point B in the middle;

[0023] Figure 5 This is a schematic diagram of the installation of the inner filter cartridge in this embodiment;

[0024] Figure 6 for Figure 5 Enlarged view of point A in the middle;

[0025] Figure 7 This is a schematic diagram of one structure of the cylinder cover in this embodiment.

[0026] Reference numerals: 1. Cylinder body; 2. Inlet pipe; 3. Outlet pipe; 4. Inlet pressure test port; 5. Outlet pressure test port; 6. Cylinder cover; 7. Motor; 8. Outer filter cylinder; 9. Drive shaft; 10. Fixing component; 11. Inner filter cylinder; 12. Fixing ring; 13. Mounting ring; 14. Dial; 15. Filter hole; 16. Sleeve; 17. Support frame; 18. Mounting sleeve; 19. Drain pipe; 20. Fixing block; 21. Mounting plate; 22. Connecting block; 23. Dial strip; 24. Pointer; 25. Mounting hole; 26. Packing material; 27. Mounting step; 28. Bearing outer ring; 29. ​​Bearing inner ring; 30. Cage; 31. Ball bearing; 32. Step seat; 33. Locking nut; 34. Pressure cap; 35. Limiting ring; 36. Motor frame. Detailed Implementation

[0027] 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.

[0028] like Figures 1-7 As shown, an adjustable-precision Y-type filter includes a filter, an inlet pipe 2, and an outlet pipe 3. The filter includes a cylinder body 1, a cylinder cover 6, a motor 7, an outer filter cylinder 8, and an inner filter cylinder 11. One end of the inlet pipe 2 is connected to the bottom opening of the cylinder body 1, and one end of the outlet pipe 3 is connected to the side wall opening of the cylinder body 1. Both the outer filter cylinder 8 and the inner filter cylinder 11 are hollow cylindrical structures, and their lower ends are connected to the bottom opening of the cylinder body 1. Fluid in the inlet pipe 2 enters the inner filter cylinder 11 through the bottom opening of the cylinder body 1, passes through the filter holes on the inner filter cylinder 11 and the outer filter cylinder 8, and then enters the outlet pipe 3 through the opening on the side wall of the cylinder body 1.

[0029] The outer filter cartridge 8 is fixedly installed inside the cylinder body 1, with its bottom abutting against the bottom of the cylinder body 1 to seal the gap between their bottoms. The inner filter cartridge 11 is located inside the outer filter cartridge 8, with its sidewall fitting against the sidewall of the outer filter cartridge 8 to reduce the gap between them and prevent impurities from entering the gap. Corresponding filter holes 15 are provided on the sidewalls of the outer filter cartridge 8 and the inner filter cartridge 11, and the projection of the filter holes 15 is square.

[0030] A motor bracket 36 is mounted on the upper part of the cylinder cover 6. The motor 7 is mounted on the cylinder cover 6 via the motor bracket 36. The motor 7 drives a drive shaft 9, which is connected to the inner filter cylinder 11 via a fixing member 10. The motor 7 can drive the inner filter cylinder 11 to rotate inside the outer filter cylinder 8 via the drive shaft 9, changing the overlap of the filter holes 15 on the inner filter cylinder 11 and the outer filter cylinder 8, thereby changing the filtration accuracy. A drain pipe 19 is connected to the upper part of the cylinder cover 6, and an electric drain ball valve is installed on the drain pipe 19.

[0031] The sleeve cover 6 includes a sleeve 16, through which a drive shaft 9 passes. A scale 14 is mounted on the sleeve 16, and a pointer 24 is connected to the outer periphery of the drive shaft 9, with the pointer 24 positioned above the scale 14. The scale 14 includes two semi-circular mounting discs 21. Connecting blocks 22 are connected to the left and right ends of opposite sides of the two mounting discs 21. The corresponding connecting blocks 22 on the two mounting discs 21 are connected by bolts, thereby fixing the two mounting discs 21 into a whole, which is then fixedly mounted on the sleeve 16. A scale strip 23 is provided on the upper part of the mounting disc 21.

[0032] The scale bar 23 on the dial 14 represents the angle scale, and "fully open" and "fully closed" are marked at both ends of the scale bar 23. The pointer 24 points to the scale bar 23 to indicate the rotation angle of the outer filter cylinder 8.

[0033] When the filter holes 15 on the outer filter cartridge 8 and the inner filter cartridge 11 are completely aligned, pointer 24 indicates "fully open," allowing large particles to pass through. Driving the outer filter cartridge 8 to rotate causes the filter holes 15 on the outer filter cartridge 8 and the inner filter cartridge 11 to gradually shift, reducing the opening arc length and improving filtration accuracy. Pointer 24 rotates with the drive shaft 9 to indicate the angle of rotation. When the filter holes 15 on the outer filter cartridge 8 and the inner filter cartridge 11 are completely misaligned, pointer 24 indicates "fully closed," impurities cannot pass through the filter holes 15, and filtration stops. The electric drain ball valve on the drain pipe 19 opens, allowing fluid to drain directly from the drain pipe 19, also carrying away impurities from the inner wall of the inner filter cartridge 11.

[0034] The drive shaft 9 is rotated forward and backward by motor 7, controlling the inner filter cartridge 11 to rotate forward and backward within the outer filter cartridge 8. This enables an automatic cycle of "precision adjustment → sewage discharge → filtration restoration" without manual reset. The dial 14 with a pointer provides real-time feedback on the rotation angle, eliminating blind adjustment and improving adjustment accuracy.

[0035] The specific adjustment method includes the following steps;

[0036] 1. Determine the upper limit of the angle of the overlapping part of the filter pores based on the particle size:

[0037] The minimum width of the opening formed by the overlapping part of the filter pores must be ≤ the particle size. Otherwise, particles will pass through. Since the filter pores are arc-shaped openings, the width of the opening is the chord length. The relationship between the chord length w and the opening angle θ of the filter pore is:

[0038] Where R is the radius of the inner filter cylinder 11.

[0039] To trap particles, the upper limit of the opening angle is derived:

[0040] .

[0041] II. Calculate the critical velocity of the fluid passing through the filter orifice opening.

[0042] When the fluid velocity through the opening exceeds the critical velocity, particles will be swept through the opening due to inertia or turbulent erosion. Therefore, it is necessary to ensure... The formula for the critical flow velocity is: ;

[0043] Where D represents the diameter of the inlet and outlet pipes, and the inlet and outlet pipes have the same diameter; ρ p ρ represents the density of the filtered particles, μ represents the density of the fluid, and μ represents the dynamic viscosity of the fluid.

[0044] III. Determine the lower limit of the angle of the overlapping part of the filter holes based on the critical flow velocity.

[0045] Since the projection of the filter hole 15 is square, the width L1 of the filter hole 15 is the chord length when it is fully open. θ1 is the opening angle corresponding to the fully open state of filter hole 15.

[0046] Pipe flow It must be equal to the flow rate through the opening. Opening area To ensure The lower limit of the opening angle is derived as follows:

[0047] .

[0048] IV. Calculating the motor adjustment angle

[0049] Feasibility conditions must be met: From a security perspective, select .

[0050] The motor adjusts the angle of the inner filter cartridge 11. .

[0051] like It is necessary to reduce the flow rate, increase the pipe diameter, or relax the particle retention requirements.

[0052] The inlet pipe 2 and the outlet pipe 3 are respectively equipped with an inlet pressure measuring port 4 and an outlet pressure measuring port 5 for the insertion of a pressure sensor. When the pressure sensor detects that the pressure difference between the inlet pipe 2 and the outlet pipe 3 reaches the set value, the sewage discharge begins.

[0053] A fixing ring 12 is connected to the inner wall of the cylinder 1 near the top, and an installation ring 13 is connected to the outer edge of the upper end of the outer filter cylinder 8. The installation ring 13 and the fixing ring 12 are connected by bolts, thereby fixing the outer filter cylinder 8 inside the cylinder 1.

[0054] The fixing component 10 includes a central disc and several connecting rods. The bottom end of the drive shaft 9 is connected to the central disc by bolts. One end of the connecting rod is connected to the outer periphery of the central disc, and the other end is connected to the inner wall of the inner filter cylinder 11. This structure reduces obstruction to the fluid, allowing the fluid to enter the inner filter cylinder 11 normally.

[0055] like Figure 3 As shown, the sleeve 16 has a mounting hole 25, and several packing materials 26 are installed in the mounting hole 25. The drive shaft 9 passes through the packing materials 26. A fixing block 20 is connected to the lower part of the mounting plate 21. After the mounting plate 21 is installed on the sleeve 16, the fixing block 20 abuts against the uppermost packing material 26. The mounting hole 25 is used to achieve a seal between the drive shaft 9 and the sleeve cover 6 to prevent leakage.

[0056] like Figure 7 As shown, the cylinder cover 6 includes a mounting sleeve 18, and a support frame 17 is connected between the mounting sleeve 18 and the cylinder cover 6. One end of the support frame 17 is connected to the outer periphery of the mounting sleeve 18, and the other end of the support frame 17 is bent and connected to the upper part of the cylinder cover 6.

[0057] like Figure 4As shown, the drive shaft 9 passes through the mounting sleeve 18, and a bearing is provided between the drive shaft 9 and the mounting sleeve 18. A pressure cover 34 is installed on the upper part of the mounting sleeve 18, and the bearing is located in the area enclosed by the mounting sleeve 18 and the pressure cover 34. The bearing includes an outer ring 28 and an inner ring 29. Balls 31 are mounted between the outer ring 28 and the inner ring 29 via a cage 30. An installation step 27 is provided inside the mounting sleeve 18. The lower end of the outer ring 28 abuts against the installation step 27. A step seat 32 is provided on the part of the drive shaft 9 located inside the mounting sleeve 18. The lower end of the inner ring 29 abuts against the step seat 32. A locking nut 33 is threaded onto the drive shaft 9. By tightening the locking nut 33, the lower end of the locking nut 33 abuts against the upper end of the inner ring 29, thus fixing the inner ring 29 relative to the drive shaft 9. A pressure cap 34 is fixedly mounted on the upper part of the mounting sleeve 18 by bolts. A limit ring 35 is connected to the lower part of the pressure cap 34. The limit ring 35 extends into the mounting sleeve 18. The lower end of the limit ring 35 abuts against the upper end of the outer ring 28, thus fixing the outer ring 28 relative to the mounting sleeve 18. This structure enables the drive shaft 9 to rotate smoothly and stably, thereby ensuring precise control of the rotation of the outer filter cartridge 8 and, consequently, precise adjustment of the filtration accuracy.

[0058] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiments. All technical solutions falling within the scope of the present invention's concept are within the scope of protection of the present invention. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A method of using a Y-type filter with adjustable precision, characterized in that, The adjustable precision Y-type filter includes a filter, an inlet pipe (2), and an outlet pipe (3). The filter includes a cylinder (1), one end of the inlet pipe (2) is connected to the bottom opening of the cylinder (1), and one end of the outlet pipe (3) is connected to the side wall opening of the cylinder (1). The filter also includes a cylinder cover (6), a motor (7), an outer filter cylinder (8), and an inner filter cylinder (11). The outer filter cylinder (8) is fixedly installed inside the cylinder (1), and the inner filter cylinder (6) is fixedly installed inside the cylinder (1). 11) Located inside the outer filter cylinder (8), the motor (7) is mounted on the cylinder cover (6). The motor (7) is connected to a drive shaft (9). The drive shaft (9) is connected to the inner filter cylinder (11) through a fastener (10). The motor (7) can drive the inner filter cylinder (11) to rotate inside the outer filter cylinder (8) through the drive shaft (9). The outer filter cylinder (8) and the inner filter cylinder (11) have corresponding filter holes (15) on their side walls. The usage method includes the following steps: S1. Determine the upper limit of the angle of the overlapping part of the filter pores based on the particle size of the filter particles. S2, Calculate the critical flow velocity of the fluid through the filter orifice opening; S3. Determine the lower limit of the angle of the overlapping part of the filter holes based on the critical flow velocity. S4. Determine the motor adjustment angle based on the upper and lower angle limits.

2. The method of using the adjustable precision Y-type filter according to claim 1, characterized in that, The inner wall of the cylinder (1) is connected to a fixing ring (12), and the outer edge of the upper end of the outer filter cylinder (8) is connected to an installation ring (13). The installation ring (13) and the fixing ring (12) are connected by bolts.

3. The method of using the adjustable precision Y-type filter according to claim 1, characterized in that, The fixing component (10) includes a central disk and several connecting rods. The bottom end of the drive shaft (9) is connected to the central disk by bolts. One end of the connecting rod is connected to the outer periphery of the central disk, and the other end is connected to the inner wall of the inner filter cylinder (11).

4. The method of using the adjustable precision Y-type filter according to claim 1, characterized in that, The cap (6) includes a sleeve (16), the drive shaft (9) passes through the sleeve (16), a scale (14) is mounted on the sleeve (16), and a pointer (24) is connected to the outer periphery of the drive shaft (9), the pointer (24) is located on the scale (14).

5. The method of using the adjustable precision Y-type filter according to claim 4, characterized in that, The dial (14) includes two mounting plates (21), and connecting blocks (22) are connected to opposite sides of the two mounting plates (21). The two corresponding connecting blocks (22) on the two mounting plates (21) are connected by bolts. A scale strip (23) is provided on the upper part of the mounting plate (21).

6. The method of using the adjustable precision Y-type filter according to claim 5, characterized in that, The sleeve (16) has an installation hole (25) inside, and several packings (26) are installed in the installation hole (25). The drive shaft (9) passes through the packings (26) and a fixing block (20) is connected to the lower part of the mounting plate (21).

7. The method of using the adjustable precision Y-type filter according to claim 1, characterized in that, The cylinder cover (6) includes a mounting sleeve (18), a support frame (17) is connected between the mounting sleeve (18) and the cylinder cover (6), the drive shaft (9) passes through the mounting sleeve (18), and a bearing is provided between the drive shaft (9) and the mounting sleeve (18).

8. The method of using the adjustable precision Y-type filter according to claim 7, characterized in that, The bearing includes an outer ring (28) and an inner ring (29). Balls (31) are mounted between the outer ring (28) and the inner ring (29) via a cage (30). An mounting step (27) is provided inside the mounting sleeve (18). The lower end of the outer ring (28) abuts against the mounting step (27). A step seat (32) is provided on the portion of the drive shaft (9) located inside the mounting sleeve (18). The lower end of the inner ring (29) abuts against the step seat (32). A locking nut (33) is threaded onto the drive shaft (9). The lower end of the locking nut (33) abuts against the upper end of the bearing inner ring (29), fixing the bearing inner ring (29) relative to the drive shaft (9). A pressure cap (34) is fixedly installed on the upper part of the mounting sleeve (18) by bolts. A limit ring (35) is connected to the lower part of the pressure cap (34). The lower end of the limit ring (35) abuts against the upper end of the bearing outer ring (28), fixing the bearing outer ring (28) relative to the mounting sleeve (18).

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