Internal circulation filter element for water treatment

Abstract

The utility model discloses an internal circulation filter element for water treatment, which comprises a shell, a filter element pipe and a sintering filter element, a sealing cover is arranged at the upper end of the shell, a turbid liquid pipe and a plurality of clear liquid pipes are respectively inserted into the lower part and the upper part of the surface of the shell, and the upper end of the filter element pipe is connected with the clear liquid pipes through a double-cavity joint. The lower end of the filter element pipe is connected with a double-layer joint, a separation pipe is arranged outside the sintered filter element, the lower end of the sintered filter element is connected with the double-layer joint, and the separation pipe penetrates through the double-cavity joint; turbid liquid enters the shell, passes through the filter element pipe and the filter cloth to filter particle impurities, passes through the communication port to enter the sintered filter element, passes through the sintered filter element to enter the separation pipe and flows to the clear liquid pipe, so that internal circulation filtration of the turbid liquid in the filter element pipe is realized, the sintered filter element is combined into the filter element pipe, the structure is compact, and the occupied space for installation is small.

Description

Technical Field

[0001] This utility model relates to the field of water treatment technology, specifically to an internal circulation filter element for water treatment. Background Technology

[0002] Water treatment relies on filter cartridges with various filtration effects. Combining multiple filter cartridges can remove unwanted substances from the water.

[0003] In related technologies, a water treatment separation device (announcement number CN221917474U) was found to use a water pump to filter the water source inside the tank through a water pipe, so that the device filters the water source in the tank to the separation tank. Two filter elements are placed on the inner wall of the filter frame, so that the water source in the tank can be filtered through the two filter elements to achieve double filtration, blocking the dirt to the inner wall of the tank 1 to achieve separation of dirt and clean.

[0004] However, the above solution achieves dual filtration by using two stacked filter cartridges when filtering liquids. Such a filter cartridge combination structure requires connecting the two filter cartridges to each other, arranging additional pipes, and having a suitable fixing bracket. It also has requirements for installation space and is not compact in structure. Utility Model Content

[0005] The purpose of this invention is to provide an internal circulation filter element for water treatment to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an internal circulation filter element for water treatment, comprising a shell, a cap installed on the upper end of the shell, and a turbid liquid pipe and several clear liquid pipes inserted into the lower and upper parts of the shell surface, respectively. The turbid liquid pipe sends turbid liquid into the shell, and the filtered turbid liquid is discharged from the clear liquid pipe.

[0007] The filter element tube has its upper end connected to the clear liquid tube via a double-lumen connector, and its lower end connected to a double-layer connector.

[0008] The sintered filter element has a partition tube on its outside. The lower end of the sintered filter element is connected to a double-layer connector. The partition tube passes through the double-cavity connector. The filter element tube is connected to the sintered filter element through the double-layer connector. The sintered filter element is arranged inside the filter element tube, realizing the assembly of the sintered filter element and the filter element tube, eliminating unnecessary pipes and resulting in a small size.

[0009] Furthermore, the lower end of the outer casing is tapered, and a drain flange is connected to the lower end of the outer casing. Impurities are discharged through the drain flange, reducing impurities inside the outer casing and making it easier to clean impurities.

[0010] Furthermore, the cover surface is connected to an instrument port, a discharge port, and a spare port, which facilitates the connection of a pressure gauge. The discharge port can be used for pressure relief and overflow to prevent high pressure from causing damage to the outer casing.

[0011] Furthermore, the inner wall of the double-layer connector is connected to an adapter, and the lower end of the sintered filter element is connected to the adapter. The surface of the adapter is provided with several connecting ports to facilitate the flow of liquid from the filter cloth into the sintered filter element. After the liquid is filtered by the sintered filter element, it flows into the clear liquid pipe through the separator pipe, thereby achieving liquid filtration.

[0012] Furthermore, the inner wall of the filter element tube is provided with filter cloth, and a support ring is sleeved on the surface of the sintered filter element. The support ring is connected to a retainer that contacts the filter cloth. The surface of the retainer is provided with several flow ports to prevent the filter cloth from deforming and maintain a stable filtration effect.

[0013] Compared with the prior art, the beneficial effects of this utility model are: the turbid liquid enters the shell, passes through the filter core tube and filter cloth to filter particulate impurities, and then passes through the connecting port into the sintered filter core. The turbid liquid passes through the sintered filter core into the separator tube and flows into the clear liquid tube, realizing the internal circulation filtration of the turbid liquid in the filter core tube. The sintered filter core is combined into the filter core tube, resulting in a compact structure and less space occupied during installation. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the internal structure of the outer shell of this utility model;

[0016] Figure 3 This is a schematic diagram of the internal structure of the filter element tube of this utility model;

[0017] Figure 4 This is a schematic diagram of the connection between the retainer and the filter cloth in this utility model.

[0018] In the diagram: 1. Outer shell; 2. Clear liquid pipe; 3. Cap; 4. Instrument port; 5. Outlet port; 6. Spare port; 7. Drain flange; 8. Turbid liquid pipe; 9. Interface; 10. Double-chamber connector; 11. Filter element tube; 12. Double-layer connector; 13. Filter cloth; 14. Adapter; 15. Connecting port; 16. Cage; 17. Flow port; 18. Sintered filter element; 19. Support ring; 20. Divider tube. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example

[0020] Please see Figure 1-4 This utility model provides a technical solution: an internal circulation filter element for water treatment, including a shell 1, a cover 3 installed on the upper end of the shell 1, and a turbid liquid pipe 8 and a plurality of clear liquid pipes 2 respectively inserted into the lower and upper parts of the surface of the shell 1. The turbid liquid is sent into the shell 1 through the turbid liquid pipe 8, and the turbid liquid is discharged through the clear liquid pipes 2 after being filtered. The plurality of pipes can improve the discharge efficiency of the clear liquid.

[0021] The filter element tube 11 has its upper end connected to the clear liquid tube 2 via a double-chamber connector 10, and its lower end connected to a double-layer connector 12. The double-chamber connector 10 is separated from the middle, with its lower part connected to the filter element tube 11 and its upper part connected to the interface 9.

[0022] A sintered filter element 18 is provided with a separator tube 20 on its outside. The lower end of the sintered filter element 18 is connected to a double-layer connector 12. The separator tube 20 passes through the double-cavity connector 10. A gap is left between the separator tube 20 and the sintered filter element 18 to allow space for the flow of clear liquid. The filter element tube 11 is connected to the sintered filter element 18 through the double-layer connector 12, so that the turbid liquid can be filtered through the filter element tube 11 and the sintered filter element 18 in sequence.

[0023] In this embodiment, as Figure 1 As shown, the lower end of the outer shell 1 is tapered, which facilitates the falling of impurities below the outer shell 1. The lower end of the outer shell 1 is connected to a drain flange 7, which is connected to a drain pipe through a valve, so that impurities can be discharged from the outer shell 1.

[0024] In this embodiment, as Figure 2 As shown, the surface of the clear liquid tube 2 is provided with several interfaces 9, and the dual-chamber connector 10 is connected to the interfaces 9, so that the clear liquid tube 2 can be connected to multiple filter tubes 11 to increase the discharge volume of clear liquid.

[0025] In this embodiment, as Figure 2 As shown, the surface of the cover 3 is connected to an instrument port 4, a drain port 5, and a spare port 6. The instrument port 4 facilitates the connection of a water pressure gauge, and the drain port 5 can relieve pressure and prevent excessive internal pressure in the outer casing 1.

[0026] In this embodiment, as Figure 3 As shown, the inner wall of the double-layer connector 12 is connected to an adapter 14, and the lower end of the sintered filter element 18 is connected to the adapter 14. The surface of the adapter 14 is provided with several connecting ports 15. The turbid liquid filtered by the filter element tube 11 flows into the sintered filter element 18 through the connecting ports 15 to realize the internal circulation filtration of the turbid liquid.

[0027] In this embodiment, as Figure 3 and Figure 4As shown, the inner wall of the filter element tube 11 is provided with filter cloth 13, and the surface of the sintered filter element 18 is fitted with a support ring 19. The support ring 19 is connected to a retainer 16 that contacts the filter cloth 13. The retainer 16 prevents the filter cloth 13 from deforming due to pressure, ensuring that the filter cloth 13 can achieve the filtration effect for a long time.

[0028] In this embodiment, as Figure 3 and Figure 4 As shown, the surface of the retainer 16 is provided with a plurality of flow ports 17, which will not obstruct the flow of turbid liquid in the outer shell 1.

[0029] Specifically, during use, the turbid liquid enters the outer shell 1 through the turbid liquid pipe 8. When the pressure in the outer shell 1 increases, the turbid liquid passes through the filter element pipe 11 and the filter cloth 13, blocking impurities in the turbid liquid in the outer shell 1, thus achieving preliminary filtration of the turbid liquid. The turbid liquid in the filter cloth 13 enters the sintered filter element 18 through the connecting port 15. The sintered filter element 18 filters the turbid liquid into a clear liquid. After passing through the sintered filter element 18, the clear liquid enters the separator pipe 20. The clear liquid flows along the separator pipe 20 into the clear liquid pipe 2, so that the clear liquid pipe 2 provides clear liquid.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A water treatment internal circulation filter element, characterized in that, include: The outer shell (1) has a cap (3) installed on its upper end, and a turbid liquid tube (8) and several clear liquid tubes (2) are respectively inserted into the lower and upper parts of the surface of the outer shell (1). The filter tube (11) is connected to the clear liquid tube (2) at its upper end via a double-chamber connector (10), and a double-layer connector (12) is connected to the lower end of the filter tube (11). A sintered filter element (18) is provided with a separator tube (20) on the outside. The lower end of the sintered filter element (18) is connected to a double-layer connector (12). The separator tube (20) passes through the double-cavity connector (10). The filter element tube (11) is connected to the sintered filter element (18) through the double-layer connector (12).

2. The internal circulation filter element for water treatment according to claim 1, characterized in that: The lower end of the outer shell (1) is tapered, and a drain flange (7) is connected to the lower end of the outer shell (1).

3. The internal circulation filter element for water treatment according to claim 1, characterized in that: The surface of the clear liquid tube (2) is provided with several interfaces (9), and the double-lumen connector (10) is connected to the interfaces (9).

4. The internal circulation filter element for water treatment according to claim 1, characterized in that: The surface of the cover (3) is connected to an instrument port (4), an outlet (5), and a spare port (6).

5. The internal circulation filter element for water treatment according to claim 1, characterized in that: The inner wall of the double-layer connector (12) is connected to an adapter (14), the lower end of the sintered filter element (18) is connected to the adapter (14), and the surface of the adapter (14) is provided with several connecting ports (15).

6. The internal circulation filter element for water treatment according to claim 1, characterized in that: The inner wall of the filter element tube (11) is provided with filter cloth (13), and the surface of the sintered filter element (18) is fitted with a support ring (19). The support ring (19) is connected to a retainer (16) that contacts the filter cloth (13).

7. The internal circulation filter element for water treatment according to claim 6, characterized in that: The surface of the retainer (16) is provided with a plurality of flow ports (17).

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