Reclaimed water advanced treatment single-chamber filter

By introducing a sliding and slider structure into the single-chamber filter for advanced reclaimed water treatment, combined with a sealing design of fasteners and threaded rods, the problem of inconvenient filter element replacement is solved, achieving convenient disassembly and efficient sealing of the filter element.

CN121754934APending Publication Date: 2026-03-31HUADIAN POWER INTERNATIONAL CORPORATION LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-09-30
Publication Date
2026-03-31

AI Technical Summary

Technical Problem

The filter cartridges of existing sewage treatment filters are inconvenient to replace, resulting in low replacement efficiency and poor cleaning effect.

Method used

A single-chamber filter for deep treatment of reclaimed water is designed. A first spring drives a rotating rod to slide, which, combined with a slide rail and slider structure, facilitates the extraction and insertion of the filter element. A sealing cover connected to a threaded rod with fasteners is used to tighten and adjust the sealing ring, thereby improving the sealing effect.

Benefits of technology

It improves the speed of filter element disassembly and installation, enhances the sealing effect, and ensures the efficient operation of the filter.

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Abstract

The invention relates to the field of filters, in particular to a reclaimed water advanced treatment single-chamber filter which comprises a shell and further comprises a supporting column and a shell body which are arranged in the shell, and the supporting column is located below the shell body and connected with the shell body; a first spring is arranged at the bottom in the shell, a sliding way piece connected with the first sliding block is arranged above the first spring, a groove is formed in the sliding way piece, a rotating rod is arranged at the bottom in the shell, a sliding piece is arranged at the upper end of the rotating rod, the sliding piece is arranged in the groove, a piston is arranged at the top of the sliding way piece, and a filtering box is connected to the upper portion of the shell. And a filter element and a connecting piece are respectively arranged in the filter box. The first spring is arranged to drive the rotating rod to slide in the groove in the slide way piece so as to drive the filter element to be pulled out and pushed in, the filter element has the advantage of being convenient to detach, the sliding piece slides and is fixed in the groove in a pressing mode, and the detaching and installing speed of the filter element can be effectively increased.
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Description

Technical Field

[0001] This invention belongs to the field of filter technology, specifically relating to a single-chamber filter for advanced reclaimed water treatment. Background Technology

[0002] Wastewater treatment is the process of purifying wastewater to meet the water quality requirements for discharge into a water body or for reuse. It is widely used in various fields such as construction, agriculture, transportation, energy, petrochemicals, environmental protection, urban landscaping, healthcare, and catering, and is increasingly becoming a part of everyday life. The wastewater treatment process involves using filters to remove solid particulate matter, followed by further treatment of the filtered wastewater using biological and other methods. Wastewater treatment filters primarily treat wastewater to enable its recycling. To ensure the quality of the treated wastewater, the filter cartridges inside the wastewater treatment filters need to be replaced and maintained regularly.

[0003] A search revealed a water treatment filter cleaning component with publication number CN202322815903.2, which specifically discloses a water treatment filter housing, a drain channel, and a filter element fixing bracket. A water inlet is installed at the top of one side of the water treatment filter housing, and a drain is installed at the bottom. A flushing pipe is located at the top inside the water treatment filter housing. A drive motor is installed at the top of the water treatment filter housing, and a connecting shaft is installed at the bottom of the drive motor. Brush holders are provided on both sides of the bottom of the connecting shaft, and each brush holder has a disassembly / removal structure at its top. The disassembly / removal structure includes a connecting plate, a slider, a fixing block, a sliding groove, and fastening bolts. This invention achieves the purpose of disassembling the brush holders by rotating the fastening bolts symmetrically arranged on both sides of the bottom of the connecting shaft, thus removing the fastening bolts from the slider, and moving the slider to remove it from the sliding groove. This facilitates brush replacement and improves replacement efficiency.

[0004] However, the above-mentioned devices still have certain defects. For example, after the brushes of the water treatment filter cleaning components have been used for a long time, it is not convenient to disassemble and replace them, resulting in low replacement efficiency. When in use, it is not convenient to clean the particles attached to the filter element, and the impurity cleaning effect is not good.

[0005] Therefore, it is necessary to invent a single-chamber filter for advanced reclaimed water treatment to solve the above problems. Summary of the Invention

[0006] The purpose of this invention is to provide a single-chamber filter for deep treatment of reclaimed water, which can effectively solve the above-mentioned technical problems.

[0007] To achieve the above objectives, the present invention provides the following technical solution:

[0008] A single-chamber filter for deep treatment of reclaimed water includes a housing, and further includes a support column and a housing respectively disposed within the housing, wherein the support column is located below the housing and connected to the housing;

[0009] A first spring is provided at the bottom of the inner cavity of the housing. A first sliding groove is provided on the inner wall of the housing. A first slider is slidably connected in the first sliding groove. A slide rail connected to the first slider is provided above the first spring. A groove is provided on the slide rail. A rotating rod is provided at the bottom of the housing. The lower end of the rotating rod is rotatably connected to the housing. A sliding member is provided at the upper end of the rotating rod. The sliding member is placed in the groove. A piston is provided at the top of the slide rail. A second spring is wound around the outside of the piston. A filter box is connected to the top of the housing. A filter element and a connector are respectively provided in the filter box. The lower end of the filter element is connected to the piston through the connector. The upper end of the filter element is connected to a telescopic rod provided above the filter box through the connector.

[0010] Further specified, rubber rings are provided between the telescopic rod and the connecting member, and between the piston and the connecting member. A connecting plate is connected to the top of the telescopic rod, and a handle is provided on the connecting plate. The rubber rings help to seal the interior of the filter box. The handle facilitates the removal of the filter element.

[0011] Further specifying, the surface of the telescopic rod is wound with a fourth spring, and the bottom of the fourth spring is connected to the top of the rubber ring.

[0012] Furthermore, the connector has a second sliding groove on the side away from the filter box, and a second slider is slidably connected to the inner side of the second sliding groove, and the second slider is connected to the filter element. After the filter element is pulled out, it can be directly removed through the sliding groove and the slider, and then reinstalled in the filter box after cleaning, which facilitates the installation and removal of the filter element.

[0013] Further specified, there are multiple filter elements, which are evenly distributed in a circle inside the filter box; the top of each of the multiple filter elements is connected to a connecting plate.

[0014] Further specified, the top of the outer casing is connected to a sealing cap; vent pipes are respectively connected to the two side walls of the outer casing; the vent pipes are connected to the inside of the filter box.

[0015] Further specifying, the inner cavity of the sealing cover is provided with fasteners, which are C-shaped structures, and there are two fasteners with their openings facing each other. Helical threads are formed on both ends of the fasteners, and the two opposing helical threads are connected by a threaded rod to form a circular structure. During rotation, the threaded rod allows the fasteners on both sides of its surface to move towards each other, achieving positioning and tightening of the fasteners.

[0016] Further specified, the sealing cover is provided with a sealing ring located inside the fastener, the fastener is provided with a third spring, and the sealing ring is connected to the fastener through the third spring.

[0017] Furthermore, a fixing plate is provided on the outer wall of the outer shell, and the vent pipe passes through the fixing plate and communicates with the interior of the outer shell. This further reinforces the vent pipe and increases its stability.

[0018] Further specified, the upper side wall of the filter box is connected to an inlet pipe, which passes through the outer shell and is located outside the outer shell; the lower side wall of the filter box is connected to an outlet pipe, which passes through the outer shell and is located outside the outer shell; the inlet pipe is connected to the outlet pipe through the filter element.

[0019] The technical effects and advantages provided by the present invention in the above technical solution are as follows:

[0020] 1. In this invention, by setting a first spring to drive the rotating rod to slide in the groove of the slide piece, the filter element is pulled out and pushed in, which has the advantage of facilitating filter element disassembly. By pressing, the sliding piece slides and is fixed in the groove, which can effectively improve the speed of filter element disassembly and installation.

[0021] 2. In this invention, by setting a fastener to tighten the sealing ring in the sealing cover by rotating the threaded rod, the sealing ring is secured in the sealing cover by the tightening or loosening of the threaded rod in the spiral pattern. This has the advantage of self-adjusting the sealing tightness of the sealing ring, keeping the sealing cover fixed to the sealing ring and improving the sealing effect. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0023] Figure 1 This is a front view of the overall structure of the present invention;

[0024] Figure 2 This is a front sectional view of the overall structure of the present invention;

[0025] Figure 3 For the present invention Figure 2 Enlarged view of the structure at point A in the middle;

[0026] Figure 4 This is a partial top view of the structure of the present invention;

[0027] Figure 5 For the present invention Figure 4 Enlarged view of the structure at point B in the middle.

[0028] Explanation of reference numerals in the attached figures:

[0029] 1. Outer shell; 2. Support column; 3. Housing; 4. First spring; 5. First slide groove; 6. First slider; 7. Slide rail component; 8. Groove; 9. Rotating rod; 10. Sliding component; 11. Piston; 12. Second spring; 13. Filter box; 14. Port; 15. Connector; 16. Filter element; 17. Telescopic rod; 18. Rubber ring; 19. Connecting plate; 20. Sealing cover; 21. Fastener; 22. Spiral thread; 23. Threaded rod; 24. Third spring; 25. Sealing ring; 26. Vent pipe; 27. Second slide groove; 28. Second slider; 29. ​​Fourth spring; 30. Handle; 31. Fixing plate. Detailed Implementation

[0030] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0031] Example 1

[0032] See Figure 1 The single-chamber filter for deep treatment of reclaimed water provided in this embodiment includes a housing 1, a support column 2 connected to the bottom of the inner cavity of the housing 1, a housing 3 connected to the top of the support column 2, the housing 3 being located inside the housing 1, a first spring 4 connected to the bottom of the inner cavity of the housing 3, a first groove 5 opened in the middle of the inner wall of the housing 3, a first slider 6 slidably connected inside the first groove 5, a slide rail 7 connected to the first slider 6 above the first spring 4, a groove 8 opened on the front of the slide rail 7, a rotating rod 9 rotatably connected to the bottom of the inner cavity of the housing 3 via a rotating shaft, the lower end of the rotating rod 9 rotatably connected to the housing 3, and a sliding member 10 connected to the upper end of the rotating rod 9, the sliding member 10 being placed in the groove 8 and sliding along the groove 8. A piston 11 is connected above the slide rail 7. A second spring 12 is wound around the surface of the piston 11. A filter box 13 is connected to the top of the housing 3. A filter element 16 and a connector 15 are respectively installed inside the filter box 13. The lower end of the filter element 16 is connected to the piston 11 through the connector 15, and the upper end of the filter element 16 is connected to the telescopic rod 17 located above the filter box 13 through the connector 15.

[0033] To facilitate the connection of both ends of the filter element 16 with the piston 11 and the telescopic rod 17, openings 14 are provided at the top and bottom of the filter box 13. The connector 15 at the lower end of the filter element 16 passes through the opening 14 and connects to the piston 11, and the connector 15 at the upper end of the filter element 16 also passes through the opening 14 and connects to the telescopic rod 17.

[0034] To facilitate wastewater inflow and outflow, an inlet pipe is connected to the upper side wall of the filter box 13, passing through the outer casing 1 and located outside the casing 1. An outlet pipe is connected to the lower side wall of the filter box 13, also passing through the outer casing 1 and located outside the casing 1. The inlet and outlet pipes are positioned on opposite side walls of the filter box 13, for example, the inlet pipe on the left side wall and the outlet pipe on the right side wall. The inlet pipe is connected to the outlet pipe via the filter element 16, thus achieving filtration.

[0035] In this embodiment, rubber rings 18 are provided between the telescopic rod 17 and the connecting member 15, and between the piston 11 and the connecting member 15. A connecting plate 19 is connected to the top of the telescopic rod 17, and a handle 30 is provided on the connecting plate 19. The rubber rings 18 help to seal the interior of the filter box 13, and the handle 30 makes it easy to pull out the filter element 16.

[0036] In this embodiment, a fourth spring 29 is wound around the surface of the telescopic rod 17, and the bottom of the fourth spring 29 is connected to the top of the rubber ring 18. The fourth spring 29 is wound along the axial direction of the telescopic rod 17. By providing the fourth spring 29, the rubber ring 18 can always maintain a seal against the filter box 13.

[0037] See Figure 3 In this embodiment, a second sliding groove 27 is provided on the side of the connector 15 away from the filter box 13. A second slider 28 is slidably connected to the inner side of the second sliding groove 27, and the second slider 28 is connected to the filter element 16. After the filter element 16 is pulled out, it can be directly removed through the sliding groove and the slider. After cleaning, it can be put back into the filter box 13, which facilitates the installation and removal of the filter element 16.

[0038] In this embodiment, there are multiple filter elements 16, which are evenly distributed in a circle inside the filter box 13; the top of each filter element 16 is connected to the connecting plate 19.

[0039] The connection between the filter element and other components is explained using two filter elements 16 as an example.

[0040] Preferably, there are two filter elements 16, so there are also two telescopic rods 17 and two pistons 11. Two openings 14 are opened at the top and bottom of the filter box 13. The two openings 14 at the top are symmetrically distributed along the vertical central axis of the filter box 13, and the two openings 14 at the bottom are also symmetrically distributed along the vertical central axis of the filter box 13. The two telescopic rods 17 are symmetrically distributed along the vertical central axis of the filter box 13, and the two pistons 11 are symmetrically distributed along the vertical central axis of the filter box 13.

[0041] The axial directions of the two filter elements 16 are parallel to the vertical central axis of the filter box 13. The top end of the left filter element 16 is connected to one of the telescopic rods 17 via a connector 15, and its bottom end is connected to one of the pistons 11 via a connector 15. The top end of the right filter element 16 is connected to the other telescopic rod 17 via a connector 15, and its bottom end is connected to the other piston 11 via a connector 15. A rubber ring 18 is provided between each telescopic rod 17 and the connector 15, and a rubber ring 18 is also provided between each piston 11 and the connector 15.

[0042] Refer to the instruction manual appendix Figure 1-5 The working principle of disassembling filter element 16 will be explained only.

[0043] In use, first pull the handle 30 and press it downwards. The handle 30 will then push the connecting plate 19 downwards. The connecting plate 19 will push the connecting piece 15, rubber ring 18, and filter element 16 downwards via the telescopic rod 17 and the fourth spring 29. This will in turn push the piston 11 and the second spring 12 downwards. As the piston 11 and the second spring 12 move downwards, the sliding of the first slide groove 5 and the first slider 6 will push the slide piece 7 downwards. As the slide piece 7 moves downwards, the sliding piece 10, located in the lower recess of the groove 8, will slide upwards along the track of the groove 8 to the upper recess of the groove 8. The sliding of the sliding piece 10 will drive the rotating rod 9 to rotate. At the same time, the continued downward movement of the slide piece 7 will push the first spring 4 at its bottom to contract, generating a locking force. Then, release the handle 30. The slide piece 7 will be pushed upwards by the reset thrust of the first spring 4. Under the upward thrust of the first spring 4, The sliding member 10 slides from the upper recess of the groove 8 to the lower recess, then drives the second spring 12 and piston 11 to move upward, finally pushing the connector 15 and filter element 16 upward, thereby pushing the filter element 16 to the outside of the filter box 13. The user pushes the filter element 16 out of the second slide groove 27 through the second slide block 28 in the connector 15, realizing the disassembly of the filter element 16. The filter element 16 is cleaned. After cleaning, the filter element 16 is reset through the second slide groove 27 and the second slide block 28. Then, the handle 30 is pressed, which drives the sliding member 10 to slide back from the lower recess of the groove 8 along the upper right corner of the groove 8 to the upper recess of the groove 8. Then, the handle 30 is released, the first spring 4 is reset, and the slide member 7 is pushed upward. Finally, the sliding member 10 is fixed in the upper recess of the groove 8 by the pushing force, and the filter element 16 is also fixed in the filter box 13, completing the installation of the filter element 16.

[0044] In summary, the single-chamber filter for deep treatment of reclaimed water provided in this embodiment achieves the effect of facilitating the installation and removal of the filter element 16.

[0045] Example 2

[0046] See Figure 1and Figure 2 Based on Example 1, the reclaimed water deep treatment single-chamber filter provided in this example has a sealing cover 20 connected to the top of the outer shell 1; and air pipes 26 are respectively connected to the two side walls of the outer shell 1, and the air pipes 26 are connected to the inside of the filter box 13.

[0047] During filtration, air (e.g., air or other gases) is introduced into the filter box 13 through the vent pipe 26 to enhance the filtration effect, promote biological reactions, and help remove some pollutants that are difficult to remove by physical and chemical means. This embodiment only protects the structure of the vent pipe; the specific type of gas and the amount introduced are designed according to the water quality to be treated and are not limited here.

[0048] Specifically, the sealing cap 20 is circular with an opening on its lower surface, forming an inner cavity structure. The size of the sealing cap 20 matches the top of the outer casing 1, thus achieving a seal on the outer casing 1.

[0049] See Figure 4 and Figure 5 In this embodiment, the inner cavity of the sealing cover 20 is provided with fasteners 21. The fasteners 21 have a C-shaped structure, and there are two fasteners 21 with their openings facing each other. Spiral threads 22 are provided on both ends of the fasteners 21. The two opposing spiral threads 22 are connected to form a circular structure by a threaded rod 23. In use, the openings of the two fasteners 21 face each other, and the threaded rod 23 passes axially through the two fasteners 21 and is threadedly connected by the spiral threads 22. Thus, during rotation, the threaded rod 23 allows the fasteners 21 on both sides of its surface to move towards each other.

[0050] In this embodiment, a sealing ring 25 is provided on the sealing cover 20, located inside the fastener 21, and a third spring 24 is provided on the fastener 21. The sealing ring 25 is connected to the fastener 21 through the third spring 24.

[0051] See Figure 1 A fixing plate 31 is provided on the outer wall of the outer shell 1. The vent pipe 26 passes through the fixing plate 31 and communicates with the inside of the outer shell 1. The fixing plate 31 can further reinforce the vent pipe 26 and increase the stability of the vent pipe 26.

[0052] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A single-chamber filter for advanced treatment of reclaimed water, comprising a housing (1), characterized in that: Supporting column (2) and shell (3) are arranged in the shell (1) respectively, the supporting column (2) is below the shell (3) and is connected with the shell (3); The bottom of the inner cavity of the shell (3) is provided with a first spring (4), a first sliding groove (5) is formed in the inner wall of the shell (3), a first sliding block (6) is slidably connected in the first sliding groove (5), a slide member (7) connected with the first sliding block (6) is arranged above the first spring (4), a groove (8) is formed in the slide member (7), a rotating rod (9) is arranged on the bottom of the shell (3), the lower end of the rotating rod (9) is rotatably connected with the shell (3), a sliding member (10) is arranged on the upper end of the rotating rod (9), the sliding member (10) is arranged in the groove (8), a piston (11) is arranged on the top of the slide member (7), a second spring (12) is wound around the outer part of the piston (11), a filter box (13) is connected above the shell (3), a filter core (16) and a connecting piece (15) are arranged in the filter box (13), the lower end of the filter core (16) is connected with the piston (11) through the connecting piece (15), and the upper end of the filter core (16) is connected with a telescopic rod (17) arranged above the filter box (13) through the connecting piece (15).

2. The single-chamber filter for advanced treatment of reclaimed water according to claim 1, characterized in that: Rubber rings (18) are arranged between the telescopic rod (17) and the connecting piece (15) and between the piston (11) and the connecting piece (15), and a connecting plate (19) is connected to the top of the telescopic rod (17).

3. The single-chamber filter for advanced treatment of reclaimed water according to claim 2, characterized in that: A fourth spring (29) is wound around the surface of the telescopic rod (17), and the bottom of the fourth spring (29) is connected with the top of the rubber ring (18).

4. The single-chamber filter for advanced treatment of reclaimed water according to claim 3, characterized in that: A second sliding groove (27) is formed in the side of the connecting piece (15) away from the filter box (13), and a second sliding block (28) is slidably connected to the inner side of the second sliding groove (27) and connected with the filter core (16).

5. The single-chamber filter for advanced treatment of reclaimed water according to claim 2, characterized in that: The filter core (16) is a plurality of filter cores, and the plurality of filter cores (16) are evenly distributed in a circle in the filter box (13).

6. The single-chamber filter for advanced treatment of reclaimed water according to any one of claims 1 to 5, characterized in that: The top of the filter core (16) is connected with the connecting plate (19).

7. The single-chamber filter for advanced treatment of reclaimed water according to claim 6, characterized in that: The top of the shell (1) is connected with a sealing cover (20), air pipes (26) are arranged on the two side walls of the shell (1), and the air pipes (26) are in communication with the inside of the filter box (13).

8. The single-chamber filter for advanced treatment of reclaimed water according to claim 7, characterized in that: The inner cavity of the sealing cover (20) is provided with a fastener (21), the fastener (21) is a C-shaped structure, there are two fasteners (21) with opposite openings, and helical threads (22) are formed in the two ends of the fastener (21), and the two fasteners (21) are connected to form a circular structure through a threaded rod (23). A sealing ring (25) is arranged on the inner side of the fastener (21) of the sealing cover (20), a third spring (24) is arranged on the fastener (21), and the sealing ring (25) is connected with the fastener (21) through the third spring (24).

9. The single-chamber filter for advanced treatment of reclaimed water according to claim 8, characterized in that: The outer wall of the shell (1) is provided with a fixed plate (31), and the air pipe (26) communicates with the inside of the shell (1) through the fixed plate (31).

10. The regenerative water depth treatment single-chamber filter according to claim 1, characterized in that: The upper side wall of the filter box (13) is externally connected with a water inlet pipe, and the water inlet pipe is located outside the shell (1) through the shell (1); the lower side wall of the filter box (13) is externally connected with a water outlet pipe, and the water outlet pipe is located outside the shell (1) through the shell (1); the water inlet pipe communicates with the water outlet pipe through the filter element (16).

Citation Information

Patent Citations

  • Cleaning assembly for water treatment filter

    CN221207023U