Anti-clogging high efficiency filter cartridge

Abstract

This utility model discloses a clog-resistant high-efficiency filter cartridge, comprising a filter cartridge with a filter screen body internally engaged and positioned. A backwash drain port is located near the front end of the filter cartridge and is connected to the filter screen body. A liquid inlet is located near the rear end of the filter cartridge, and a filtrate outlet is located at the front end. The filter screen body includes a perforated plate, a stainless steel filter screen, a cone, a closed mesh head, and a silicone sealing ring. The stainless steel filter screen is disposed on the perforated plate, the cone is located at the end of the perforated plate, and the closed mesh head is located at the end of the cone. This clog-resistant high-efficiency filter cartridge is easy to clean, can be backwashed and reused, has long-term use, is highly cost-effective, easy to replace and maintain, reduces costs, and is easy to install in existing filtration systems, utilizing high filtration efficiency.

Description

Technical Field

[0001] This utility model relates to the field of water treatment, and in particular to a high-efficiency filter cartridge that is clogging-resistant. Background Technology

[0002] A filter cartridge is a support device for water treatment filtration. It is mainly used in water treatment, petrochemical, fine chemical, pharmaceutical, new energy, food and beverage, machinery manufacturing, electronics and semiconductor, environmental protection and other fields. The existing bag filter cartridges use a combination of stainless steel support mesh and filter bag to achieve filtration and separation. With the continuous development of technology, people have higher and higher requirements for the manufacturing process of filter cartridges.

[0003] Existing filter cartridges have certain drawbacks in use. Filter bags are consumables, and once the pores become clogged, they can no longer achieve the filtering effect and need to be replaced with new filter bags. The cost of replacing filter bags is high, resulting in high on-site operation costs for customers. The large number of filter bags that need to be replaced makes the treatment of solid and hazardous waste difficult and costly. Replacing filter bags and filter screens requires stopping the equipment and opening the top cover of the filter cartridge, which is time-consuming and labor-intensive. Therefore, we propose a clog-resistant, high-efficiency filter cartridge. Utility Model Content

[0004] Technical problem to be solved: In view of the shortcomings of the prior art, this utility model provides a high-efficiency filter cartridge that is easy to clean, can be backwashed and reused, can be used for a long time, is highly cost-effective, is easy to replace and maintain, and saves costs. It is easy to install in existing filtration systems and utilizes the filtration height to effectively solve the problems in the background art.

[0005] Technical Solution: To achieve the above objectives, the technical solution adopted by this utility model is as follows: a high-efficiency anti-clogging filter cartridge, comprising a filter cartridge, a filter screen body being engaged and positioned inside the filter cartridge, a backwash drain port being provided near the front end of the filter cartridge and being connected to the filter screen body, a liquid inlet being provided near the rear end of the filter cartridge, and a filtrate outlet being provided at the front end of the filter cartridge, the filter screen body comprising a perforated plate, a stainless steel filter screen, a cone, a closed mesh head, and a silicone sealing ring, the stainless steel filter screen being disposed on the perforated plate, the cone being located at the end of the perforated plate, the closed mesh head being located at the end of the cone, the silicone sealing ring being located on the outer wall of the closed mesh head, a sealing positioning ring being provided between the filter screen body and the filter cartridge, the filter screen body being sealed to the inner wall of the filtrate outlet, and a filtrate discharge chamber being provided between the inner wall of the filter cartridge and the outer wall of the filter screen body, and the filtrate discharge chamber being connected to the filtrate outlet.

[0006] Preferably, a support frame is positioned at the lower end of the filter cartridge, a flange is positioned at the tail end of the filter cartridge, a filter screen pressure ring is movably disposed at the rear end of the flange, a hinge and locking assembly are provided between the flange and the filter screen pressure ring, and a handle is positioned at the rear end of the filter screen pressure ring.

[0007] Preferably, a blockage monitoring component is positioned at the liquid inlet, and an inlet pressure monitoring probe is positioned inside the liquid inlet. The inlet pressure monitoring probe is connected to the blockage monitoring component. The blockage monitoring component includes a central processing unit, an alarm, an inlet control valve, a drain control valve, a clear liquid backflushing control valve, a battery, and an inlet pressure monitor. The central processing unit is connected to the alarm, the inlet control valve, the drain control valve, the clear liquid backflushing control valve, the battery, and the inlet pressure monitor.

[0008] Preferably, the lower end of the filter cartridge is supported by a support frame, and the filter screen pressure ring is adjusted at the rear end of the flange by a hinge and locked by a locking assembly.

[0009] Preferably, the output terminal of the liquid inlet pressure monitor is electrically connected to the input terminal of the central processing unit, and the output terminal of the central processing unit is electrically connected to the input terminals of the alarm, the liquid inlet control valve, the sewage control valve, and the clear liquid backflushing control valve.

[0010] Preferably, the filter screen body is engaged and positioned with the filter cylinder, and the filter cylinder is integrally formed with the filtrate outlet, backwash drain outlet and liquid inlet.

[0011] Preferably, the filter screen body and the filter cylinder are sealed by a sealing positioning ring, and the filter screen body and the filtrate outlet are sealed by a silicone sealing ring. The upper end of the filter screen body is an open structure, and the bottom of the filter screen body is a closed structure. The sewage at the inlet is pumped into the interior of the filter cylinder and flows directly downward into the interior of the filter screen body. After being filtered by the perforated plate and the stainless steel filter screen, the sewage inside the filter screen body flows to the filtrate discharge chamber and is discharged to the filtrate outlet. At this time, the backwash drain is in a closed state.

[0012] Preferably, after the pressure of the pumped waste liquid at the inlet reaches a specified value, the inlet pressure monitoring probe stops pumping, closes the inlet, opens the backwash drain, and pumps cleaning fluid into the filtrate discharge chamber from the filtrate discharge outlet. The cleaning fluid backwashes the filter screen body, and the flushed waste liquid is pumped out from the backwash drain.

[0013] Beneficial Effects: Compared with the prior art, this utility model provides a clog-resistant high-efficiency filter cartridge with the following beneficial effects: This clog-resistant high-efficiency filter cartridge is easy to clean, can be backwashed and reused, has long-term use, is highly cost-effective, is easy to replace and maintain, and saves costs. It is easy to install in existing filtration systems. Utilizing the filter height, the filter screen body and the filter cartridge are sealed by a sealing positioning ring, and the filter screen body and the filtrate outlet are sealed by a silicone sealing ring. The upper end of the filter screen body has an open structure, and the bottom of the filter screen body has a sealed structure. At the liquid inlet, the sewage is pumped into the interior of the filter cartridge and flows directly downwards into the interior of the filter screen body. Furthermore, the dirty liquid inside the filter body flows to the filtrate discharge chamber after being filtered by the perforated plate and stainless steel filter screen, and is discharged out at the filtrate discharge port. At this time, the backwash drain port is closed. When the inlet pressure monitoring probe detects that the pumped dirty liquid pressure at the inlet reaches the specified value, if the pumped water pressure is too high, it indicates that the inner wall of the filter body is blocked. At this time, the pumping at the inlet is stopped and closed, and the backwash drain port is opened. Cleaning agent is pumped into the filtrate discharge chamber from the filtrate discharge port, and the cleaning agent backwashes the filter body. The flushed dirty liquid is pumped out from the backwash drain port. The entire filter cylinder has a simple structure, is easy to operate, and has a better effect than the traditional method. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of a high-efficiency filter cartridge for clogging prevention according to this utility model.

[0015] Figure 2 This is a structural schematic diagram of the overall cross-sectional view of an anti-clogging high-efficiency filter cartridge of this utility model.

[0016] Figure 3 This is a schematic diagram of the structure of the filter screen body in the anti-clogging high-efficiency filter cartridge of this utility model.

[0017] Figure 4 This is a structural schematic diagram of the main view of the filter screen body in the anti-clogging high-efficiency filter cartridge of this utility model.

[0018] Figure 5 This is a schematic diagram of the clogging monitoring component in a high-efficiency filter cartridge for clogging prevention according to this utility model.

[0019] In the diagram: 1. Filter cartridge; 2. Support frame; 3. Filtrate outlet; 4. Backwash drain; 5. Liquid inlet; 6. Hinge; 7. Filter screen pressure ring; 8. Handle; 9. Locking assembly; 10. Flange; 11. Filter screen body; 12. Perforated plate; 13. Stainless steel filter screen; 14. Cone; 15. Sealed mesh head; 16. Silicone sealing ring; 17. Blockage monitoring assembly; 18. Inlet pressure monitoring probe; 19. Central processing unit; 20. Alarm; 21. Inlet control valve; 22. Drain control valve; 23. Clear liquid backwash control valve; 24. Battery; 25. Inlet pressure monitor; 26. Filtrate discharge chamber; 27. Sealing positioning ring. Detailed Implementation

[0020] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings and specific embodiments. However, those skilled in the art will understand that the embodiments described below are only some embodiments of this utility model, not all embodiments, and are only used to illustrate this utility model, and should not be regarded as limiting the scope of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model. Where specific conditions are not specified in the embodiments, conventional conditions or conditions recommended by the manufacturer shall be followed. Where the manufacturers of reagents or instruments are not specified, they are all conventional products that can be purchased commercially.

[0021] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] like Figure 1-5As shown, a clog-resistant high-efficiency filter cartridge includes a filter cartridge 1, with a filter screen body 11 internally engaged and positioned. A backwash drain port 4 is provided near the front end of the filter cartridge 1 and is connected to the filter screen body 11. A liquid inlet 5 is provided near the rear end of the filter cartridge 1, and a filtrate outlet 3 is provided at the front end. The filter screen body 11 includes a perforated plate 12, a stainless steel filter screen 13, a cone 14, a closed mesh head 15, and a silicone sealing ring 16. The stainless steel filter screen 13 is mounted on the perforated plate 12, and the cone 14 is located within the perforated plate. At the end of plate 12, the closed mesh head 15 is located at the end of cone 14, and the silicone sealing ring 16 is located on the outer wall of the closed mesh head 15. A sealing positioning ring 27 is provided between the filter screen body 11 and the filter cylinder 1 for sealing and positioning. The filter screen body 11 is sealed to the inner wall of the filtrate outlet 3. A filtrate discharge chamber 26 is provided between the inner wall of the filter cylinder 1 and the outer wall of the filter screen body 11, and the filtrate discharge chamber 26 is connected to the filtrate outlet 3. It is easy to clean, can be backwashed and reused, can be used for a long time, is very cost-effective, is easy to replace and maintain, and saves costs. It is easy to install in existing filtration systems and utilizes the filtration height.

[0024] Preferably, a support frame 2 is positioned at the lower end of the filter cartridge 1, a flange 10 is positioned at the tail end of the filter cartridge 1, a filter screen pressure ring 7 is movably arranged at the rear end of the flange 10, a hinge 6 and a locking assembly 9 are provided between the flange 10 and the filter screen pressure ring 7, and a handle 8 is positioned at the rear end of the filter screen pressure ring 7.

[0025] Preferably, a blockage monitoring component 17 is positioned at the liquid inlet 5, and an inlet pressure monitoring probe 18 is positioned inside the liquid inlet 5. The inlet pressure monitoring probe 18 is connected to the blockage monitoring component 17. The blockage monitoring component 17 includes a central processing unit 19, an alarm 20, an inlet control valve 21, a drain control valve 22, a clear liquid backflushing control valve 23, a battery 24, and an inlet pressure monitor 25. The central processing unit 19 is connected to the alarm 20, the inlet control valve 21, the drain control valve 22, the clear liquid backflushing control valve 23, the battery 24, and the inlet pressure monitor 25.

[0026] Preferably, the lower end of the filter cartridge 1 is supported by the support frame 2, and the filter screen pressure ring 7 is adjusted at the rear end of the flange 10 by the hinge 6 and locked by the locking assembly 9.

[0027] Preferably, the output terminal of the liquid inlet pressure monitor 25 is electrically connected to the input terminal of the central processing unit 19, and the output terminal of the central processing unit 19 is electrically connected to the input terminals of the alarm 20, the liquid inlet control valve 21, the sewage control valve 22, and the clean liquid backflushing control valve 23.

[0028] Preferably, the filter screen body 11 is engaged and positioned with the filter cylinder 1, and the filter cylinder 1 is integrally formed with the filtrate outlet 3, the backwash drain outlet 4 and the liquid inlet 5.

[0029] Preferably, the filter screen body 11 is sealed to the filter cylinder 1 by a sealing positioning ring 27, and the filter screen body 11 is sealed to the filtrate outlet 3 by a silicone sealing ring 16. The upper end of the filter screen body 11 is an open structure, and the bottom of the filter screen body 11 is a closed structure. The sewage at the inlet 5 is pumped into the interior of the filter cylinder 1 and flows directly downward into the interior of the filter screen body 11. After being filtered by the perforated plate 12 and the stainless steel filter screen 13, the sewage inside the filter screen body 11 flows to the filtrate outlet chamber 26 and is discharged to the filtrate outlet 3. At this time, the backwash drain port 4 is in a closed state.

[0030] Preferably, after the pressure of the pumped waste liquid at the inlet 5 reaches the specified value, the pumped water pressure is too high, which indicates that the inner wall of the filter screen body 11 is blocked. At this time, the pumping at the inlet 5 is stopped, the inlet 5 is closed, the backwash drain port 4 is opened, and the filtrate outlet 3 pumps cleaning fluid into the filtrate discharge chamber 26. The cleaning fluid backwashes the filter screen body 11, and the flushed waste liquid is pumped out from the backwash drain port 4.

[0031] Working principle: This utility model includes a filter cylinder 1, a support frame 2, a filtrate outlet 3, a backwash drain outlet 4, a liquid inlet 5, a hinge 6, a filter screen pressure ring 7, a handle 8, a locking assembly 9, a flange 10, a filter screen body 11, a perforated plate 12, a stainless steel filter screen 13, a cone 14, a closed mesh head 15, a silicone sealing ring 16, a blockage monitoring assembly 17, an inlet pressure monitoring probe 18, a central processing unit 19, an alarm 20, an inlet control valve 21, a drain control valve 22, a clear liquid backwash control valve 23, a battery 24, an inlet pressure monitor 25, a filtrate discharge chamber 26, and a sealing positioning ring 27. It is easy to clean, can be backwashed and reused, can be used for a long time, is extremely cost-effective, is easy to replace and maintain, and saves costs. It is easy to install in existing filtration systems and utilizes the filtration height.

[0032] It consists of main components such as an external filter cartridge, a filter screen pressure ring, and a backwash filter. The external filter cartridge is assembled and welded from a perforated stainless steel tube, fitted with pipes, fittings, and hardware. A backwash filter is installed inside the filter cartridge as the filtration layer; it is the core of the filter cartridge and performs the filtration function. Two filter elements are available: a multi-layer woven composite mesh and a T-shaped wound wire mesh. When the medium enters the filter cartridge through the inlet 5, solid particles are intercepted by the backwash filter on its inner wall. The filtered clear liquid collects from the outside of the filter and flows to the filtrate outlet 3 before being discharged for subsequent operations. After the equipment has been working for a period of time, the filter screen accumulates more and more solid particles, and the channels become blocked. As a result, the pressure inside the filter cartridge rises. Once the pressure reaches the set value, the PLC or DCS control system will automatically cut off the liquid inlet 5 to stop the liquid intake and open the backwash drain 4. At the same time, clean liquid is introduced from the backwash drain 3 branch to clean the solid particles on the inner wall of the filter screen. The cleaning liquid and solid particles are discharged from the backwash drain 4. After cleaning is completed, the filtrate drain 3 branch is closed, and then the backwash drain 4 is closed. At the same time, the liquid inlet 5 and the liquid outlet of the filtrate drain 3 are opened to continue the intermittent filtration. This process does not require the replacement of the filter bag, reducing the consumption of the filter bag. It also does not require manual opening of the cover, saving time and labor costs.

[0033] It should be noted that, in this document, relational terms such as first and second (number one, number two), etc., are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0034] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A non-clogging high efficiency filter cartridge comprising a filter cartridge (1) characterized by: The filter cylinder (1) has a filter screen body (11) inside, which is engaged and positioned. A backwash drain port (4) is provided on the filter cylinder (1) near the front end, and the backwash drain port (4) is connected to the filter screen body (11). A liquid inlet (5) is provided on the filter cylinder (1) near the rear end, and a filtrate outlet (3) is provided at the front end of the filter cylinder (1). The filter screen body (11) includes a perforated plate (12), a stainless steel filter screen (13), a cone (14), a closed mesh head (15), and a silicone sealing ring (16). The stainless steel filter screen (13) The cone (14) is located at the end of the perforated plate (12), the closed mesh head (15) is located at the end of the cone (14), the silicone sealing ring (16) is located on the outer wall of the closed mesh head (15), the filter screen body (11) and the filter cylinder (1) are sealed and positioned by a sealing positioning ring (27), the filter screen body (11) is sealed with the inner wall of the filtrate outlet (3), the inner wall of the filter cylinder (1) and the outer wall of the filter screen body (11) are provided with a filtrate discharge chamber (26), and the filtrate discharge chamber (26) is connected to the filtrate outlet (3); A support frame (2) is positioned at the lower end of the filter cylinder (1), a flange (10) is positioned at the tail of the filter cylinder (1), a filter screen pressure ring (7) is movably arranged at the rear end of the flange (10), a hinge (6) and a locking assembly (9) are provided between the flange (10) and the filter screen pressure ring (7), and a handle (8) is positioned at the rear end of the filter screen pressure ring (7). A blockage monitoring component (17) is positioned at the liquid inlet (5), and an inlet pressure monitoring probe (18) is positioned inside the liquid inlet (5). The inlet pressure monitoring probe (18) is connected to the blockage monitoring component (17). The blockage monitoring component (17) includes a central processing unit (19), an alarm (20), an inlet control valve (21), a drain control valve (22), a clear liquid backflushing control valve (23), a battery (24), and an inlet pressure monitor (25). The central processing unit (19) is connected to the alarm (20), the inlet control valve (21), the drain control valve (22), the clear liquid backflushing control valve (23), the battery (24), and the inlet pressure monitor (25). The lower end of the filter cylinder (1) is supported by the support frame (2), and the filter screen pressure ring (7) is adjusted at the rear end of the flange (10) by the hinge (6) and locked by the locking assembly (9). The output of the liquid inlet pressure monitor (25) is electrically connected to the input of the central processing unit (19), and the output of the central processing unit (19) is electrically connected to the input of the alarm (20), the liquid inlet control valve (21), the sewage control valve (22), and the clear liquid backflushing control valve (23). The filter screen body (11) is engaged and positioned with the filter cylinder (1), and the filter cylinder (1) is integrally formed with the filtrate outlet (3), the backwash drain outlet (4) and the liquid inlet (5); The filter screen body (11) and the filter cylinder (1) are sealed by a sealing positioning ring (27), and the filter screen body (11) and the filtrate outlet (3) are sealed by a silicone sealing ring (16). The upper end of the filter screen body (11) is an open structure, and the bottom of the filter screen body (11) is a closed structure. The sewage at the inlet (5) is pumped into the interior of the filter cylinder (1) and flows directly downward into the interior of the filter screen body (11). The sewage inside the filter screen body (11) is filtered by the perforated plate (12) and the stainless steel filter screen (13) and then flows to the filtrate discharge chamber (26) and is discharged to the filtrate outlet (3). At this time, the backwash drain (4) is closed. After the pressure of the inlet liquid pressure monitoring probe (18) reaches the specified value, the pumping stops, the inlet liquid (5) is closed, the backwash drain (4) is opened, the filter discharge port (3) pumps cleaning fluid into the filter discharge chamber (26), and the cleaning fluid backwashes the filter screen body (11), and the flushed sewage is pumped out from the backwash drain (4).

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