A microporous ceramic filter for swimming pools
By designing a microporous ceramic filter and combining water flow and airflow backwashing, the problems of low filtration accuracy and complex operation of existing swimming pool filters are solved, achieving a high-efficiency and energy-saving filtration effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- BEIJING WANHOU ENVIRONMENTAL TECH DEV
- Filing Date
- 2025-09-05
- Publication Date
- 2026-07-31
AI Technical Summary
Existing swimming pool filters, such as quartz sand filters, have low filtration accuracy and large backwash water volume; cartridge filters are disposable and costly; and diatomaceous earth filters are complex to operate and non-renewable.
The filter uses a microporous ceramic filter, which utilizes lightweight microporous filter media and a multi-valve structure to achieve dual backwashing of water and air. Through the combination of inlet, outlet, backwash air inlet and vent, the filter layer is effectively cleaned.
It improves filtration efficiency, reduces equipment footprint, is easy to operate, avoids filter clogging, and extends equipment lifespan.
Smart Images
Figure CN224573286U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of filter technology, specifically a microporous ceramic filter for swimming pools. Background Technology
[0002] A swimming pool circulation and purification system is a process in which pool water overflows from the pool at a certain flow rate and velocity, is filtered and purified to clarify the water, and then disinfected and sterilized before being returned to the pool for reuse through equipment and pipelines. The filtration unit is a key step in the pool water purification process and is also the part of the swimming pool water treatment system that can produce energy-saving and emission-reduction effects.
[0003] Currently, there are three types of equipment used for filtering water in swimming pools and water parks: quartz sand filters, diatomaceous earth filters, and cartridge filters. Among them, quartz sand filters are the most commonly used.
[0004] However, quartz sand filters have low filtration accuracy and require a large amount of backwash water. Alternatively, they may have high filtration accuracy, such as cartridge filters, which do not require backwashing, can only be used once and cannot be regenerated, making them expensive. Diatomaceous earth filters cannot be regenerated, and the diatomaceous earth is lost after each backwash, requiring recoating, which is complicated. Utility Model Content
[0005] To address the shortcomings of existing technologies, this utility model provides a microporous ceramic filter for swimming pools, which solves the problems mentioned in the background section.
[0006] To achieve the above objectives, this utility model provides the following technical solution: A microporous ceramic filter for swimming pools, comprising a column and an inlet pipe. A filter layer is installed inside the column, comprising lightweight microporous filter media with a diameter of 2-3 mm. An inlet is fixedly connected to one side of the column, and an outlet is fixedly connected to one side of the column at the bottom of the inlet. One end of the inlet pipe is fixedly connected to an inlet pipe and an outlet pipe via a T-joint. One side of the inlet pipe and the outlet pipe are fixedly connected to the inlet and outlet pipes, respectively. An inlet valve is installed at one end of the inlet pipe, and two outlet pipes are respectively equipped with… The column has a backwash inlet valve and an outlet valve. A drain pipe is fixedly connected to one side of the inlet pipe, between the inlet valve and the inlet. A backwash drain valve is installed on one side of the drain pipe. An upper end cap is installed on the top of the column. A vent is opened on the top of the upper end cap. A vent pipe is fixedly connected to one end of the vent port. A vent valve is installed at one end of the vent pipe. A pressure gauge is installed on one side of the vent pipe. A lower end cap is installed at the bottom of the column. A backwash inlet is opened at the bottom of the lower end cap. A backwash inlet pipe is installed at one end of the backwash inlet. A backwash inlet valve is installed at the other end of the backwash inlet pipe. An air supply device is fixedly connected to one end of the backwash inlet valve.
[0007] Preferably, the top and bottom of the column are fixedly connected to an upper flange and a lower flange, respectively, and the outer sides of the upper flange and the lower flange are threaded flanges.
[0008] Preferably, the threaded flange includes an upper edge of an arc-shaped groove, an outer flange ring, an O-ring, and an arc-shaped groove.
[0009] Preferably, two positioning rings are installed inside the upper and lower ends of the column. The positioning rings are 10mm high and C-shaped. An upper partition and a lower partition are installed inside the two positioning rings respectively. Both the upper and lower partitions include metal wire mesh with a mesh size of 0.5-1mm.
[0010] Preferably, the edges of the wire mesh of the upper and lower partitions are fitted with a fixed interlocking outer ring.
[0011] Preferably, a raw water chamber is provided inside the column and the upper end cap, located between the upper surface of the filter layer and the upper end cap.
[0012] Preferably, a clear water chamber is provided inside the lower end cap and the lower flange, located between the lower partition and the lower flange.
[0013] This utility model provides a microporous ceramic filter for swimming pools, which has the following beneficial effects: 1. This swimming pool uses a microporous ceramic filter. The microporous ceramic filter media in the column acts as the filter medium, forming a microporous ceramic filter layer. This is beneficial for filtering out suspended impurities, colloidal particles, algae, and other substances. Under the action of multiple valves and pipes, the direction of water flow and air flow can be changed. The filter layer can be flushed from top to bottom, or the water flow and air flow can be reverse-flushed from bottom to top to flush out impurities that are blocked in the microporous ceramic particles. The filter can then be reused and is suitable for circulating water treatment in swimming pools.
[0014] 2. This swimming pool uses a microporous ceramic filter. Its compact structure makes the equipment small in size, occupies little space, and is easy to operate. The dual backwashing structure, which combines water flow and air flow, helps to increase the backwashing force on the filter layer, thereby improving efficiency and preventing the filter layer from clogging and hindering its filtration work, thus affecting the use of the swimming pool. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a cross-sectional view of the present invention; Figure 3 This is a schematic diagram illustrating the operation of this utility model; Figure 4 This is a top view of a partial structure of the present invention; Figure 5 This is a schematic diagram of the positioning retaining ring in this utility model; Figure 6 This is a schematic diagram of the threaded flange in this utility model; Figure 7 This is a schematic diagram of the upper and lower partitions in this utility model.
[0016] In the diagram: 1. Column; 2. Upper head; 3. Lower head; 4. Upper partition; 5. Lower partition; 6. Upper flange; 7. Lower flange; 8. Positioning ring; 9. Raw water chamber; 10. Clear water chamber; 11. Filter layer; 1101. Lightweight microporous filter media; 12. Threaded flange; 1201. Upper edge of arc-shaped groove; 1202. Flange outer ring; 1203. O-ring; 1204. Arc-shaped groove; 401. Metal wire mesh; 402. 13. Fixed interlocking outer ring; 14. Water inlet; 15. Water outlet; 16. Backflush air inlet; 17. Air vent; 18. Sampling valve; 19. Pressure gauge; 20. Water inlet pipe; 21. Water inlet pipe; 22. Water outlet pipe; 23. Water inlet valve; 24. Air vent; 25. Backflush water inlet valve; 26. Backflush drain valve; 27. Drain pipe; 29. Backflush air inlet valve; 30. Liquid inlet pipe; 31. Air vent. Detailed Implementation
[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0018] Please see Figures 1 to 7This utility model provides a technical solution: a microporous ceramic filter for swimming pools, comprising a column 1 and an inlet pipe 19. A filter layer 11 is installed inside the column 1, comprising lightweight microporous filter media 1101 with a diameter of 2-3 mm. An upper end cap 2 is fixedly connected to one side of the column 1, and an inlet 13 is provided on the side of the upper end cap 2. A lower end cap 3 is fixedly connected to the other side of the column 1, located at the bottom of the column 1, and an outlet 14 is provided on the side of the lower end cap 3. One end of the inlet pipe 19 is fixedly connected to an inlet pipe 14 via a tee connector. The liquid pipe 30 and the water outlet pipe 20 allow water to flow into the column 1 through the liquid inlet pipe 30 and the water inlet 13. After filtration by the filter layer 11, it is beneficial to remove suspended impurities, colloidal particles, algae and other substances. Two positioning rings 8 are installed inside the upper and lower ends of the column 1. The positioning rings 8 are 10mm high and have a C-shaped structure, which helps to prevent the microporous ceramic filter media from leaking out. The two positioning rings 8 are respectively equipped with an upper partition 4 and a lower partition 5. Both the upper partition 4 and the lower partition 5 include a metal wire mesh 401 with a pore size of 0.The metal wire mesh 401, with a thickness of 5-1mm, has a fixed interlocking outer ring 402 installed on its edge. This helps prevent the metal wire mesh 401 from breaking under pressure, thus avoiding damage to the upper partition 4 or the lower partition 5. A raw water chamber 9 is located inside the column 1 and the upper end cap 2, between the filter layer 11 and the upper end cap 2. An upper flange 6 and a lower flange 7 are fixedly connected to the top and bottom of the column 1, respectively. Threaded flanges 12 are threaded onto the outer sides of both the upper flange 6 and the lower flange 7. The outer sides of both the upper flange 6 and the lower flange 7 are provided with threads that mate with the threaded flanges 12. This threaded connection structure facilitates fixing and disassembly. The threaded flange 12 includes an arc-shaped groove upper edge 1201 and a flange outer edge... The ring 1202, O-ring 1203, and arc groove 1204 help increase sealing. A clear water chamber 10 is provided inside the lower end cap 3 and the lower flange 7, located between the lower partition plate 5 and the lower flange 7. One side of the liquid inlet pipe 30 and the water outlet pipe 20 are fixedly connected to the water inlet 13 and the water outlet 14, respectively. A water inlet valve 21 is installed at one end of the liquid inlet pipe 30, and a backwash water inlet valve 25 and a water outlet valve 22 are installed at both ends of the water outlet pipe 20, respectively. With the closing of the water inlet valve 21, the opening and closing of the water outlet pipe 20 and the direction of water flow are controlled, so that the water inlet pipe 19, the water outlet pipe 20, and the backwash air inlet 15 are connected, and the water in the water inlet pipe 19 flows to the water outlet pipe 20. The filter layer 11 is flushed from bottom to top through the backwash inlet 15, facilitating the removal of impurities clogged in the microporous ceramic particles. A drain pipe 27 is fixedly connected to one side of the liquid inlet pipe 30, between the water inlet valve 21 and the water inlet 13. A backwash drain valve 26 is installed on one side of the drain pipe 27. When the water inlet valve 21 is closed and the backwash drain valve 26 is opened, the backwash water and impurities flow out from the water inlet 13 and are then discharged through the drain pipe 27. An upper flange 6 and an upper end cap 2 are installed on the top of the column 1. An air vent 16 is provided on the top of the upper end cap 2. An air vent pipe 31 is fixedly connected to one end of the air vent 16, and an air vent valve 23 is provided at one end of the air vent pipe 31 for easy... Air is discharged from the column 1 via a pressure gauge 18 installed on one side of the vent pipe 31. A lower flange 7 and a lower end cap 3 are installed at the bottom of the column 1. A backwash inlet 15 is located at the bottom of the lower end cap 3. A backwash inlet pipe 24 is installed at one end of the backwash inlet 15, and a sampling valve 17 is installed on the outside of the backwash inlet pipe 24. A backwash inlet valve 29 is installed at the other end of the backwash inlet pipe 24, and an air supply device is fixedly connected to the other end of the backwash inlet valve 29. When the backwash inlet valve 29 is opened, the backwash inlet pipe 24 and multiple backwash inlets 15 are connected, allowing airflow to be introduced into the column 1 for a secondary flushing of the filter layer 11 from bottom to top, which improves the backwashing effect.
[0019] In summary, this swimming pool uses a microporous ceramic filter. During use, the vent valve 23, inlet valve 21, and outlet valve 22 are opened, while all other valves are closed. This opens the inlet pipe 30, outlet pipe 20, and vent pipe 31 on the vent port 16. Water flows through the inlet pipe 19 and inlet pipe 30 to the inlet 13, thus entering the column 1. The filter layer 11 inside the column 1 traps suspended solids and other pollutants. The purified water flows out through the outlet 14 at the bottom of the column 1 and then through the outlet pipe 20. As the water level inside column 1 increases, air inside column 1 is discharged through the vent 16 and vent pipe 31 at the top. Vent valve 23 is then closed, sealing vent 16. After a certain period of operation, backwashing conditions are met, and the column enters backwashing mode. The outlet valve 22, outlet pipe 20, and inlet valve 21 are closed, sealing the connection between inlet pipe 30 and inlet pipe 19. The backwash air inlet valve 29, backwash water inlet valve 25, backwash drain valve 26, and vent valve 23 are then opened, positioning inlet pipe 30 at the inlet... The drain pipe 27 on one side of the water valve 21 is opened, and the inlet 13 is connected to the inlet pipe 30 and the drain pipe 27. The outlet pipe 20 is opened at one end of the inlet pipe 19 and the outlet 14, connecting the inlet pipe 19, the outlet pipe 20, and the outlet 14. Water flows through the outlet pipe 20 into the outlet 14, flushing the filter layer 11 inside the column 1 upwards, flushing out the pollutants trapped in the filter layer 11, and then discharging them through the inlet 13. The water then flows along the inlet pipe 30 to the drain pipe 27 for further discharge. After the backwash, open the backwash inlet valve 29 on the backwash inlet pipe 24. The backwash inlet 15 at the bottom of the column 1 is connected to the backwash inlet pipe 24. Through the air supply device, the airflow flows from the backwash inlet pipe 24 to the backwash inlet 15, and then flows upward to the filter layer 11. The backwash clears the microporous ceramic particles in the filter layer 11. The water flow and airflow combine to backwash the filter layer 11. After the backwash is finished, close the backwash inlet valve 29, the backwash water inlet valve 25, and the backwash drain valve 26 in sequence to end the backwashing state.
[0020] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A microporous ceramic filter for swimming pools, comprising a column (1) and an inlet pipe (19), characterized in that: The column (1) is equipped with a filter layer (11), which includes a lightweight microporous filter material (1101) with a diameter of 2-3 mm. An upper end cap (2) is fixedly connected to one side of the column (1), and an inlet (13) is provided on the side of the upper end cap (2). A lower end cap (3) is fixedly connected to the other side of the column (1), and an outlet (14) is provided on the side of the lower end cap (3). One end of the inlet pipe (19) is fixedly connected to an inlet pipe (30) and an outlet pipe (20) through a three-way connector. One side of the inlet pipe (30) and the outlet pipe (20) are fixedly connected to the inlet (13) and the outlet (14) respectively. An inlet valve (21) is installed at one end of the inlet pipe (30), and a backwash inlet valve (25) and an outlet valve (22) are installed at both ends of the outlet pipe (20). A drain pipe (27) is fixedly connected to one side of the column (1) and between the inlet valve (21) and the inlet (13). A backwash drain valve (26) is installed on one side of the drain pipe (27). An upper end cap (2) is installed on the top of the column (1). An air vent (16) is opened on the top of the upper end cap (2). An air vent pipe (31) is fixedly connected to one end of the air vent pipe (31). An air vent valve (23) is provided at one end of the air vent pipe (31). A pressure gauge (18) is installed on one side of the air vent pipe (31). A lower end cap (3) is installed at the bottom of the column (1). A backwash air inlet (15) is opened at the bottom of the lower end cap (3). A backwash air inlet pipe (24) is installed at one end of the backwash air inlet (15). A backwash air inlet valve (29) is installed at the other end of the backwash air inlet pipe (24). An air supply device is fixedly connected to one end of the backwash air inlet valve (29).
2. A microporous ceramic filter for swimming pools according to claim 1, characterized in that: The top and bottom of the column (1) are respectively fixedly connected with an upper flange (6) and a lower flange (7). The outer sides of the upper flange (6) and the lower flange (7) are threaded with threaded flanges (12). The outer sides of the upper flange (6) and the lower flange (7) are provided with threads that cooperate with the threaded flanges (12).
3. A microporous ceramic filter for swimming pools according to claim 2, characterized in that: The threaded flange (12) includes an upper edge of an arc groove (1201), an outer flange ring (1202), an O-ring (1203), and an arc groove (1204).
4. A microporous ceramic filter for swimming pools according to claim 1, characterized in that: Two positioning rings (8) are installed inside both ends of the column (1). The height of the positioning rings (8) is 10mm. The structure of the positioning rings (8) is C-shaped. The two positioning rings (8) are respectively equipped with an upper partition (4) and a lower partition (5). Both the upper partition (4) and the lower partition (5) include a metal wire mesh (401). The aperture of the metal wire mesh (401) is 0.5-1mm.
5. A microporous ceramic filter for swimming pools according to claim 4, characterized in that: The edge of the wire mesh (401) is fitted with a fixed interlocking outer ring (402).
6. A microporous ceramic filter for swimming pools according to claim 1, characterized in that: A raw water chamber (9) is provided inside the column (1) and the upper flange (6) and between the filter layer (11) and the upper end cap (2).
7. A microporous ceramic filter for swimming pools according to claim 1, characterized in that: A clear water chamber (10) is provided inside the lower head (3) and the lower flange (7) and between the lower partition plate (5) and the lower flange (7).