Filter with high precision and large flux

Abstract

The utility model discloses a filter with high precision and large flux, which comprises a first filter cartridge, one side of the first filter cartridge is provided with a water inlet, and two sides of the inner cavity of the first filter cartridge are provided with filter screens; the sealing box is arranged in the middle of an inner cavity of the first filter cylinder, a movable frame of a rectangular structure is installed in the center of an inner cavity of the sealing box, movable rods are welded and fixed to the two sides of the movable frame, and the ends, located outside the sealing box, of the movable rods are fixed to the middle of a filter screen; the triangular plate is arranged in the movable frame, a connecting shaft is fixedly arranged at the eccentric position in the triangular plate, the connecting shaft extends to the outside of the sealing box and is rotationally sealed with the sealing box, a driving motor is fixedly mounted outside the first filter cylinder, and an output shaft of the driving motor extends to the inside of the first filter cylinder. The problem that a filter cannot improve the filtering precision on the premise of large-flux filtering is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of filters, in particular to a filter with high precision and large flux. Background Art

[0002] The filter is a common device on the pipeline for conveying media, usually installed at the inlet end of the pressure reducing valve, pressure relief valve, water level valve and other equipment. It consists of a cylinder, a stainless steel filter, a sewage discharge part, a transmission device and an electrical control part. The water to be filtered enters the filter from the inlet and flows through the filter. The particle impurities in the water are trapped inside the filter, and the clean water flows out from the outlet. As the filtration proceeds, more and more particles are trapped, the filtration speed gradually slows down, and the pressure difference between the inlet and outlet increases. When the pressure difference reaches the set value, the control system will start the drive motor, drive the shaft to rotate through the transmission component, and open the sewage outlet at the same time to discharge the trapped impurities.

[0003] For example, the Chinese authorized patent "A large flux filter" with announcement number CN214389086U includes a tank body and a tank cover, the tank body is connected to the tank cover, a flower plate is provided on the tank body, two filter elements are fixedly connected on the flower plate, the filter element is symmetrical with the center of the flower plate as the symmetry center, the filter element includes a filter basket, a filter element support plate, a filter element body and a filter element clamping device, a water inlet and a water outlet are provided on the tank body, the water inlet is located at the upper part of the tank body, and the water outlet is located at the lower part of the tank body, which has the advantages of easy replacement of the filter element and stable filter element structure without leakage.

[0004] Although the above-mentioned existing technology can achieve water filtration, the filtration structure is relatively simple and cannot improve the filtration accuracy under the premise of high-flux filtration. Therefore, it does not meet the existing needs. In this regard, we propose a filter with both high precision and high flux. Utility Model Content

[0005] The utility model aims to provide a filter with both high precision and large flux, so as to solve the problem that the filter proposed in the above background technology cannot improve the filtering precision under the premise of large flux filtering.

[0006] To achieve the above object, the utility model provides the following technical solution: a filter with both high precision and large flux, comprising a first filter cartridge, a water inlet is provided on one side of the first filter cartridge, and filter screens are installed on both sides of the inner cavity of the first filter cartridge; and further comprising:

[0007] A sealing box is arranged at the middle position of the inner cavity of the first filter cartridge, and the sealing box is welded and fixed to the first filter cartridge. A movable frame of a rectangular structure is installed at the center of the inner cavity of the sealing box. Both sides of the movable frame are welded and fixed with movable rods, which extend to the outside of the sealing box and are slidably sealed with the sealing box. One end of the movable rod located outside the sealing box is fixed to the middle position of the filter screen.

[0008] A triangular plate is arranged inside the movable frame, a connecting shaft is fixedly provided at an eccentric position inside the triangular plate, the connecting shaft extends to the outside of the sealing box and is rotationally sealed with the sealing box, a driving motor is fixedly installed outside the first filter cartridge, the output shaft of the driving motor extends to the inside of the first filter cartridge and is fixed to the connecting shaft of the triangular plate through a coupling.

[0009] Preferably, an annularly distributed limiting groove is provided on the inner wall of the first filter cartridge at the position corresponding to the filter screen, and an annularly distributed limiting block is fixedly provided on the outer wall of the filter screen. The limiting block is located inside the limiting groove, and the limiting groove is slidably connected to the limiting block.

[0010] Preferably, a second filter cartridge is arranged on the other side of the first filter cartridge, and a plurality of reverse osmosis membranes stacked in a cylindrical shape are arranged inside the second filter cartridge. The reverse osmosis membrane divides the inner cavity of the second filter cartridge into two spaces. The outer cavity is located outside the reverse osmosis membrane assembly, and the inner cavity is located inside the reverse osmosis membrane assembly, and a drainage pipe is arranged at one end of the inner cavity.

[0011] Preferably, a plurality of annularly distributed connecting pipes are provided between the first filter cartridge and the second filter cartridge, and one end of the connecting pipe is communicated with the outer cavity.

[0012] Preferably, a particle sensor is fixedly installed at one end of the row pipe close to the second filter cartridge, a three-way valve is installed at the other end of the row pipe, a circulation pipe is installed above the three-way valve, and the other end of the circulation pipe is connected to the external cavity, and a pump is installed outside the circulation pipe.

[0013] Preferably, the triangles of the triangle plate are chamfered.

[0014] Preferably, the mesh number of the filter screen close to the water inlet is smaller than that of the other filter screen.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. The utility model is provided with a vibrating filter screen. Water flows from the water inlet to the interior of the first filter cartridge. By turning on the driving motor, its output shaft can drive the triangular plate to rotate at high speed through the coupling, and the transmission shaft is fixed at the eccentric position of the triangular plate. With the continuous rotation of the triangular plate, its outer wall comes into contact with the inner wall of the movable frame. The sealing box limits the movable rod to form a left and right swing of the movable frame, thereby driving the filter screen to swing through the movable rod. With the increase of the rotation speed, high-frequency vibration of the filter screen is formed. This vibration helps to shake off the particulate matter or impurities attached to the surface of the filter screen, thereby maintaining the patency of the filter screen and improving the filtration efficiency. In addition, the high-frequency vibration can also accelerate the flow of liquid on the surface of the filter screen, further reduce the accumulation of particulate matter on the surface of the filter screen, reduce the risk of clogging, and thus ensure the filtration flux.

[0017] 2. The utility model arranges a plurality of cylindrically stacked reverse osmosis membranes in the second filter cartridge. The water filtered by the first filter cartridge enters the outer cavity of the second filter cartridge through the connecting pipe, and gradually penetrates into the reverse osmosis membrane as the internal water pressure increases. The diameter of the micropores on the surface of the reverse osmosis membrane is between 0.5 and 2 nm. Water flows into the inner cavity through the reverse osmosis membrane, while dissolved salts and other impurities are retained on the outside of the reverse osmosis membrane, thereby achieving fine filtration of water. This structure can effectively remove a variety of pollutants in water, including heavy metals, organic chemicals, viruses, bacteria and microorganisms, etc., and can also remove soluble solids in water, such as salts, minerals and drug residues, which helps to improve water quality.

[0018] 3. The utility model is equipped with a particle sensor on the outside of the discharge pipe, which can monitor the residual particles in the water in real time. When the value in the range exceeds the set value, the discharge pipe will be connected to the circulation pipe through the three-way valve, and the water in the unqualified interval will be returned to the second filter cartridge under the action of the pump for secondary treatment, thereby ensuring that the water discharged from the discharge pipe meets the requirements of the filtration level. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional diagram of the utility model;

[0020] Figure 2 It is a schematic diagram of the internal structure of the utility model;

[0021] Figure 3 This is a three-dimensional diagram of the transmission structure of the filter screen of the utility model;

[0022] Figure 4 It is a cross-sectional view of the second filter cartridge of the present utility model.

[0023] In the figure: 1. first filter cartridge; 2. second filter cartridge; 3. discharge pipe; 4. drive motor; 5. connecting pipe; 6. particle sensor; 7. three-way valve; 8. circulation pipe; 9. pump; 10. sealing box; 11. movable frame; 12. triangular plate; 13. movable rod; 14. filter screen; 15. limit groove; 16. limit block; 17. water inlet; 18. reverse osmosis membrane; 19. outer cavity; 20. inner cavity. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be described clearly and completely 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, rather than all of the embodiments.

[0025] See also Figure 1-4 The utility model provides an embodiment: a filter with both high precision and large flux, including a first filter cartridge 1, a water inlet 17 is provided on one side of the first filter cartridge 1, and filter screens 14 are installed on both sides of the inner cavity of the first filter cartridge 1; and also includes:

[0026] A sealing box 10 is arranged at the middle position of the inner cavity of the first filter cartridge 1, and the sealing box 10 is welded and fixed to the first filter cartridge 1. A movable frame 11 of a rectangular structure is installed at the center of the inner cavity of the sealing box 10. Both sides of the movable frame 11 are welded and fixed with movable rods 13. The movable rods extend to the outside of the sealing box 10 and are slidably sealed with the sealing box 10. One end of the movable rod 13 located outside the sealing box 10 is fixed to the middle position of the filter screen 14;

[0027] The triangular plate 12 is arranged inside the movable frame 11, and a connecting shaft is fixedly provided at an eccentric position inside the triangular plate 12. The connecting shaft extends to the outside of the sealing box 10 and is rotationally sealed with the sealing box 10. A driving motor 4 is fixedly installed outside the first filter cartridge 1, and the output shaft of the driving motor 4 extends to the inside of the first filter cartridge 1 and is fixed to the connecting shaft of the triangular plate 12 through a coupling.

[0028] When in use, water flows into the interior of the first filter cartridge 1 from the water inlet 17, and by turning on the drive motor 4, its output shaft can drive the triangular plate 12 to rotate at high speed through the coupling, and the transmission shaft is fixed at the eccentric position of the triangular plate 12. As the triangular plate 12 continues to rotate, its outer wall comes into contact with the inner wall of the movable frame 11, and the sealing box 10 limits the movable rod 13 to form a left and right swing of the movable frame 11, thereby driving the filter screen 14 to swing through the movable rod 13. As the rotation speed increases, high-frequency vibration of the filter screen 14 is formed. This vibration helps to shake off the particulate matter or impurities attached to the surface of the filter screen, thereby maintaining the patency of the filter screen and improving the filtration efficiency.

[0029] See also Figure 2A ring-shaped limit groove 15 is provided on the inner wall of the first filter cartridge 1 at the position corresponding to the filter screen 14, and a ring-shaped limit block 16 is fixedly provided on the outer wall of the filter screen 14. The limit block 16 is located inside the limit groove 15, and the limit groove 15 is slidably connected to the limit block 16 to improve the stability of the filter screen 14 during vibration.

[0030] See also Figure 1 , Figure 2 and Figure 4 A second filter cartridge 2 is arranged on the other side of the first filter cartridge 1, and a plurality of cylindrically stacked reverse osmosis membranes 18 are arranged inside the second filter cartridge 2. The reverse osmosis membrane 18 divides the inner cavity of the second filter cartridge 2 into two spaces. The outer cavity 19 is located outside the reverse osmosis membrane 18 assembly, and the inner cavity 20 is located inside the reverse osmosis membrane 18 assembly. A drain pipe 3 is arranged at one end of the inner cavity 20. This structure can effectively remove various pollutants in water, including heavy metals, organic chemicals, viruses, bacteria and microorganisms, and can also remove soluble solids in water, such as salts, minerals and drug residues, which helps to improve the quality of water.

[0031] See also Figure 1 A plurality of annularly distributed connecting pipes 5 are provided between the first filter cartridge 1 and the second filter cartridge 2 , and one end of the connecting pipe 5 is connected to the outer cavity 19 , so that the filtered water can evenly enter the interior of the second filter cartridge 2 .

[0032] See also Figure 2 A particle sensor 6 is fixedly installed at one end of the drain pipe 3 close to the second filter cartridge 2, and a three-way valve 7 is installed at the other end of the drain pipe 3. A circulation pipe 8 is installed above the three-way valve 7, and the other end of the circulation pipe 8 is connected to the outer cavity 19. A pump 9 is installed outside the circulation pipe 8 to ensure that the water discharged from the drain pipe 3 meets the requirements of the filtration level.

[0033] See also Figure 2 The triangles of the triangle plate 12 are chamfered.

[0034] Furthermore, the mesh number of the filter screen 14 close to the water inlet 17 is smaller than that of the other filter screen 14 .

[0035] Working principle: When in use, water filtered by the first filter cartridge 1 enters the outer cavity of the second filter cartridge 2 through the connecting pipe 5, and gradually penetrates into the reverse osmosis membrane 18 as the internal water pressure increases. The diameter of the surface micropores of the reverse osmosis membrane 18 is between 0.5 and 2 nm. The water flows into the inner cavity through the reverse osmosis membrane 18, while the dissolved salts and other impurities are retained on the outside of the reverse osmosis membrane 18, thereby achieving fine filtration of water. The particle sensor 6 on the outside of the discharge pipe 3 can monitor the residual particles in the water in real time. When the value within the range exceeds the set value, the three-way valve 7 will be used to connect the discharge pipe 3 with the circulation pipe 8, and the water in the unqualified interval will be returned to the second filter cartridge 2 under the action of the pump 9, and then processed twice, thereby ensuring that the water discharged from the discharge pipe 3 meets the requirements of the filtration grade.

[0036] It is obvious 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 present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A filter with both high precision and high flux, comprising a first filter cartridge (1), a water inlet (17) being arranged on one side of the first filter cartridge (1), and filter screens (14) being installed on both sides of the inner cavity of the first filter cartridge (1); Features: Also includes: A sealing box (10) is arranged at a middle position of the inner cavity of the first filter cartridge (1), and the sealing box (10) is fixed to the first filter cartridge (1) by welding; a movable frame (11) of a rectangular structure is installed at the center of the inner cavity of the sealing box (10); movable rods (13) are welded and fixed on both sides of the movable frame (11); the movable rods extend to the outside of the sealing box (10) and are slidably sealed with the sealing box (10); one end of the movable rod (13) located outside the sealing box (10) is fixed to the middle position of the filter screen (14); A triangular plate (12) is arranged inside the movable frame (11); a connecting shaft is fixedly provided at an eccentric position inside the triangular plate (12); the connecting shaft extends to the outside of the sealing box (10) and is rotationally sealed with the sealing box (10); a driving motor (4) is fixedly installed outside the first filter cartridge (1); the output shaft of the driving motor (4) extends to the inside of the first filter cartridge (1) and is fixed to the connecting shaft of the triangular plate (12) via a coupling.

2. A filter with both high precision and large flux according to claim 1, characterized in that: An annularly distributed limiting groove (15) is arranged at a position corresponding to the filter screen (14) on the inner wall of the first filter cartridge (1), and an annularly distributed limiting block (16) is fixedly arranged on the outer wall of the filter screen (14); the limiting block (16) is located inside the limiting groove (15), and the limiting groove (15) is slidably connected to the limiting block (16).

3. A filter with both high precision and large flux according to claim 1, characterized in that: A second filter cartridge (2) is arranged on the other side of the first filter cartridge (1), and a plurality of reverse osmosis membranes (18) stacked in a cylindrical shape are arranged inside the second filter cartridge (2). The reverse osmosis membrane (18) divides the inner cavity of the second filter cartridge (2) into two spaces, an outer cavity (19) located outside the reverse osmosis membrane (18) assembly, and an inner cavity (20) located inside the reverse osmosis membrane (18) assembly, and a drain pipe (3) is arranged at one end of the inner cavity (20).

4. A filter with both high precision and large flux according to claim 3, characterized in that: A plurality of annularly distributed connecting pipes (5) are provided between the first filter cartridge (1) and the second filter cartridge (2), and one end of the connecting pipe (5) is connected to the outer cavity (19).

5. A filter with both high precision and large flux according to claim 4, characterized in that: A particle sensor (6) is fixedly mounted on one end of the discharge pipe (3) close to the second filter cartridge (2), a three-way valve (7) is mounted on the other end of the discharge pipe (3), a circulation pipe (8) is mounted above the three-way valve (7), and the other end of the circulation pipe (8) is connected to the outer cavity (19), and a pump (9) is mounted on the outside of the circulation pipe (8).

6. A filter with both high precision and large flux according to claim 1, characterized in that: The triangles of the triangle plate (12) are chamfered.

7. A filter with both high precision and large flux according to claim 1, characterized in that: The filter screen (14) close to the water inlet (17) has a smaller mesh size than the other filter screen (14).

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