Filter cartridge for water treatment
By using a combination of PP meltblown filter element, activated carbon filter element or ultrafiltration membrane filter element in sewage treatment, combined with check valve and sealing ring structure, the problem of traditional filter cartridges not being able to effectively sequentially filtration and lax sealing is solved, effectively purifying water quality and stable operation of the filtration system are achieved.
Patent Information
- Application Number
- CN202421721057.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-19
- Publication Date
- 2025-05-27
- Estimated Expiration
- 2034-07-19
AI Technical Summary
In existing sewage treatment, traditional filter cartridges cannot effectively filter impurities in the water in graded, resulting in incomplete removal of larger particulate matter and tiny pollutants, affecting the purity of the effluent water quality. At the same time, the backflow problems caused by imperfect seal structure and fluctuations in water pressure also affect filtration continuity and water quality safety.
The combination of filter element A and filter element B is adopted. Filter element A is a PP meltblown filter element, and filter element B is an activated carbon filter element or an ultrafiltration membrane filter element. The combination of multi-layer filter elements can achieve grading filtration of impurities in water. At the same time, a check valve and sealing ring structure is designed to prevent water backflow and leakage.
Effective hierarchical filtration of impurities in the water is achieved, the purity of the effluent water quality is ensured, water backflow and water leakage are prevented, and the continuity and safety of the filtration process are ensured.
Smart Images
Figure CN222907572U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of water treatment, in particular to a filter cartridge for water treatment. Background Art
[0002] At present, filter cartridges are often used for front-end filtration in existing sewage treatment, and there are the following technical defects:
[0003] 1. Most traditional filter cartridges only adopt a single type of filter element, which cannot effectively classify and filter impurities in water, resulting in incomplete removal of larger particles and tiny pollutants, and affecting the purity of the effluent water quality.
[0004] 2. Some existing filter cartridges are only equipped with a single-layer seal or the sealing structure is not perfect enough, and it is easy to leak water under high pressure or long-term use, affecting the filtration continuity and system stability.
[0005] 3. When the traditional filter cartridge is filtering at present, if there is a water pressure fluctuation, it may cause the filtered water to flow back, affecting the water quality safety.
[0006] Therefore, a filter cartridge for water treatment is needed to solve the above technical problems. Summary of the Utility Model
[0007] The purpose of the utility model is to provide a filter cartridge for water treatment. By adopting the combination of filter element A and active filter element B, the utility model realizes the classified filtration of impurities in water. The PP meltblown filter element can effectively remove larger particles, while the activated carbon filter element or ultrafiltration membrane further removes tiny particles, organic matters, peculiar smells, etc., ensuring the purity of the effluent water quality.
[0008] The technical solution adopted by the utility model to solve the above technical problems is: a filter cartridge for water treatment, including a cylinder body and a cover body, and the cover body is detachably connected to the cylinder body;
[0009] One side of the cover body is fixedly connected with a water inlet joint, a check valve is installed in the water inlet joint, the other side of the cover body is fixedly connected with a water outlet joint, external threads are arranged on both the water inlet joint and the water outlet joint, and a release switch is installed at the front end of the cover body;
[0010] A through hole is opened on the cover body, a water baffle is fixedly connected in the through hole, and the through hole is communicated with the water outlet joint through a water outlet connecting pipe;
[0011] A cylinder mouth is integrally connected to the cylinder body, a water outlet pipe is fixedly connected in the cylinder mouth, a water inlet is opened on one side of the cylinder mouth, and the water inlet is communicated with the water inlet joint;
[0012] A filter cavity is provided inside the cylinder body. A filter element A and a filter element B are arranged inside the filter cavity. The filter element A is fixedly connected to the bottom of the filter cavity, and the filter element B is arranged above the filter element A.
[0013] Furthermore, a dirt blocking pad is arranged at the upper end of the filter element B. The dirt blocking pad is sleeved outside the water outlet pipe, and the dirt blocking pad is made of a polypropylene fiber pad.
[0014] Furthermore, a fixing frame is fixedly connected to the bottom of the filter cavity, and the filter element A is fixedly connected to the fixing frame.
[0015] Furthermore, the filter element A is a PP meltblown filter element, and the filter element B is any one of an activated carbon filter element or an ultrafiltration membrane filter element.
[0016] Furthermore, a filter layer is fixedly connected to the bottom of the filter element B, and the filter layer is a fiber membrane filter layer.
[0017] Furthermore, elastic clamping jaws are arranged inside the cover body, and the elastic clamping jaws are connected to the release switch.
[0018] Furthermore, two sealing rings are installed at the mouth of the cylinder body.
[0019] The advantages of the present utility model are as follows: The present utility model provides a filter cartridge for water treatment, having the following technical effects:
[0020] 1. By adopting the combination of a PP meltblown filter element (filter element A) and an activated carbon filter element or an ultrafiltration membrane filter element (filter element B), the present utility model realizes the hierarchical filtration of impurities in water. The PP meltblown filter element can effectively remove larger particles, while the activated carbon filter element or the ultrafiltration membrane further removes fine particles, organic matters, odors, etc., ensuring the purity of the effluent water quality.
[0021] 2. The fiber membrane filter layer added at the bottom of the filter element B in the present utility model increases the filtration accuracy, effectively blocks finer particles, protects the subsequent treatment links, and at the same time extends the service life of the entire filter cartridge.
[0022] 3. External threads are provided on both the water inlet joint and the water outlet joint of the present utility model, which is convenient for connecting with external water inlet pipelines and water outlet pipelines. A check valve is installed inside the water inlet joint of the present utility model, effectively preventing the backflow of water caused by pressure fluctuations, ensuring the safety of the water treatment process and the cleanliness of the filtration system, and avoiding the risk of the filtered water body being polluted by the backflow of untreated water.
[0023] 4. Two sealing rings are installed at the mouth of the cylinder body of the present utility model, enhancing the sealing effect, effectively preventing water leakage, ensuring the continuity and reliability of the filtration process, and at the same time adapting to a wider range of water pressure conditions.
[0024] 5. The polypropylene fiber pad (dirt-blocking pad) provided at the upper end of the filter element B of the present utility model effectively blocks large-particle impurities, protects the water outlet pipe from abrasion and blockage, and at the same time reduces the pollution inside the filtration system.
[0025] In summary, through the comprehensive application of a variety of innovative designs, this technical solution not only improves the water treatment efficiency, but also ensures the long-term stable operation of the equipment and the convenience of maintenance, and has high practical value and market potential. BRIEF DESCRIPTION OF THE DRAWINGS
[0026] In order to more clearly illustrate the specific embodiments of the present utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.
[0027] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;
[0028] Figure 2 is a structural schematic diagram of the present utility model in a separated state;
[0029] Figure 3 is an internal structural schematic diagram of the present utility model;
[0030] Among them:
[0031] 1, cylinder body; 101, cylinder mouth; 2, cover body;
[0032] 3, water inlet joint; 4, water outlet joint; 5, through hole;
[0033] 6, release switch; 7, water outlet connecting pipe; 8, check valve;
[0034] 9, water baffle; 10, elastic clamping jaw; 11, filtration cavity;
[0035] 12, filter element A; 13, fixing frame; 14, filter element B;
[0036] 15, water outlet pipe; 16, sealing ring; 17, water inlet;
[0037] 18, dirt-blocking pad; 19, filter layer. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0038] The technical solution of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present utility model, rather than all of them. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative work belong to the scope of protection of the present utility model.
[0039] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present utility model. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. The terms "installation", "connection", "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.
[0040] Embodiment 1:
[0041] Figure 1 is a three-dimensional structure diagram of the present utility model, Figure 2 is a structural diagram of the present utility model in a separated state, Figure 3 is an internal structural diagram of the present utility model, as Figure 1 , Figure 2 and Figure 3 shown, a filter cartridge for water treatment includes a cylinder body 1 and a cover body 2. The cover body 2 is detachably connected to the cylinder body 1. The cylinder body 1 serves as the main part of the filter cartridge and bears the filter cavity 11, while the cover body 2 is detachably connected to the cylinder body 1 to facilitate the user to replace the cylinder body 1 and perform internal cleaning and maintenance. On one side of the cover body 2 of the present utility model, a water inlet joint 3 is fixedly connected. The water inlet joint 3 is the entrance for water to enter the filter cartridge and is equipped with a check valve 8 to prevent water from flowing back during pressure fluctuations. The water outlet joint 4 is the place where the filtered clear water flows out. Both are provided with external threads to facilitate tight connection with external pipes.
[0042] On the other side of the cover body 2 of the present utility model, a water outlet joint 4 is fixedly connected. External threads are provided on both the water inlet joint 3 and the water outlet joint 4. A release switch 6 is installed at the front end of the cover body 2. Inside the cover body 2 of the present utility model, elastic clamping jaws 10 are provided, and the elastic clamping jaws 10 are interconnected with the release switch 6. Specifically, a linkage design can be adopted between the elastic clamping jaws 10 and the release switch 6. When the user operates the release switch 6, it will drive the elastic clamping jaws 10 through an internal mechanical transmission mechanism (such as a connecting rod or other types of transmission devices in the prior art, not shown in the figure). This design enables the elastic clamping jaws 10 to open or close according to the operation instructions of the release switch 6. When the user presses the release switch 6, the elastic clamping jaws 10 open, reducing the clamping force on the cylinder body 1, thereby allowing the cover body 2 to be easily detached from the cylinder body 1; conversely, when the release switch 6 is reset, the elastic clamping jaws 10 return to their original positions, tightly fastening the cylinder body 1 through their elasticity to ensure no leakage; or the release switch 6 can be directly connected to the elastic clamping jaws 10 through an existing spring structure (not shown in the figure). When operating the release switch 6, it directly acts on the driving point of the elastic clamping jaws 10, causing them to deform or displace, thereby loosening or locking the connection between the cover body 2 and the cylinder body 1. By operating the release switch 6, the opening and closing of the internal elastic clamping jaws 10 can be controlled to achieve the quick disassembly and assembly of the cover body 2 and the filter cartridge.
[0043] A through hole 5 is provided on the cover body 2 of the present utility model, and a water baffle 9 is fixedly connected inside the through hole 5. The through hole 5 and the water outlet joint 4 are interconnected through a water outlet connecting pipe 7 to ensure that water flows orderly from the filtering cavity 11 to the water outlet joint 4; on the cylinder body 1 of the present utility model, a cylinder opening 101 is integrally connected, and a water outlet pipe 15 is fixedly connected inside the cylinder opening 101. An inlet 17 is provided on one side of the cylinder opening 101, and the inlet 17 is interconnected with the water inlet joint 3. When the cover body 2 and the cylinder body 1 are installed, the position of the inlet 17 corresponds to the position of the water inlet joint 3 to ensure that the water source smoothly enters the filtering cavity 11; two sealing rings 16 are installed at the cylinder opening 101 of the cylinder body 1 of the present utility model, enhancing the sealing effect, effectively preventing water leakage, ensuring the continuity and reliability of the filtering process, and at the same time adapting to a wider range of water pressure conditions.
[0044] The utility model has a filter cavity 11 opened inside the cylinder body 1. A filter element A12 and a filter element B14 are arranged inside the filter cavity 11. The filter element A12 is fixedly connected to the bottom of the filter cavity 11, and the filter element B14 is arranged at the upper end of the filter element A12. A dirt blocking pad 18 is arranged at the upper end of the filter element B14. The dirt blocking pad 18 is sleeved outside the water outlet pipe 15. The dirt blocking pad 18 is made of a polypropylene fiber pad, which can effectively block large particle impurities and protect the water outlet pipe 15, reducing wear and blockage. The bottom of the filter cavity 11 is fixedly connected with a fixing frame 13, and the filter element A12 is fixedly connected to the fixing frame 13. The fixing frame 13 is used to fix the filter element A12 to ensure the stability of the filter element A12 and prevent it from moving due to water flow impact, ensuring the filtering effect. The filter element A12 is a PP melt-blown filter element, serving as a pre-filter layer 19, mainly further removing large particle impurities and suspended matters in water and laying a foundation for subsequent fine filtration. The filter element B14 is any one of an activated carbon filter element or an ultrafiltration membrane filter element, responsible for further filtration. The activated carbon filter element is good at removing organic matters, peculiar smells, chlorides, etc. in water, while the ultrafiltration membrane can filter finer particles, bacteria, etc. The two are selected according to actual needs. The bottom of the filter element B14 is fixedly connected with a filter layer 19, and the filter layer 19 is a fiber membrane filter layer 19, which can increase the filtration accuracy and further block fine particles.
[0045] Working principle: According to the detailed structural description provided in Embodiment 1, the following is a description of the working principle steps of this water treatment filter cartridge:
[0046] Water flow entry:
[0047] First, the external water inlet pipeline is screwed with the water inlet joint 3, and the water source enters the water inlet 17 through the water inlet joint 3. At this time, the check valve 8 in the water inlet joint 3 remains open, allowing the water flow to pass through smoothly.
[0048] Before the water flow enters the filter cavity 11, it first passes through the PP melt-blown filter element (filter element A12), which is mainly responsible for removing large particle impurities and suspended matters in water and performing preliminary purification for the subsequent filtration stage.
[0049] Filtration process:
[0050] The water flow preliminarily purified by the filter element A12 continues to rise and reaches the filter element B14. The filter element B14 is selected as an activated carbon filter element or an ultrafiltration membrane filter element according to actual needs. The former is good at adsorbing organic matters, peculiar smells and chlorides, while the latter can effectively filter fine particles and bacteria, providing deeper purification.
[0051] During the filtration process of the filter element B14, the fiber membrane filter layer 19 at its bottom further improves the filtration accuracy and blocks finer particles.
[0052] Prevention of backflow and protection:
[0053] If the external water pressure suddenly drops, the check valve 8 in the water inlet joint 3 automatically closes to prevent the filtered water body from flowing back to the original water source.
[0054] The polypropylene fiber pad (dirt blocking pad 18) at the upper end of the filter element B14 effectively blocks large particle impurities from directly impacting the water outlet pipe 15, reducing wear and blockage, and protecting the water outlet pipe 15 and the filtration system from contamination.
[0055] Water flow discharge:
[0056] The clean water flow filtered by the filter element B14 passes through the water outlet connecting pipe 7, passes through the water baffle 9 in the through hole 5, and is orderly guided to the water outlet joint 4, and finally flows out of the filter cartridge to complete the entire filtration process.
[0057] The water outlet joint 4 also adopts an external thread design, which is convenient for connecting with an external drainage pipeline to ensure the convenience and stability of water flow output.
[0058] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention.
Claims
1. A filter cartridge for water treatment, comprising a cartridge body (1) and a cover body (2), wherein the cover body (2) is detachably connected to the cartridge body (1); Features: A water inlet joint (3) is fixedly connected to one side of the cover body (2), a check valve (8) is installed in the water inlet joint (3), a water outlet joint (4) is fixedly connected to the other side of the cover body (2), both the water inlet joint (3) and the water outlet joint (4) are provided with external threads, and a release switch (6) is installed at the front end of the cover body (2); The cover body (2) is provided with a through hole (5), a water baffle (9) is fixedly connected in the through hole (5), and the through hole (5) and the water outlet joint (4) are connected to each other via a water outlet connecting pipe (7); The cylinder body (1) is integrally connected with a cylinder mouth (101), a water outlet pipe (15) is fixedly connected inside the cylinder mouth (101), a water inlet (17) is opened on one side of the cylinder mouth (101), and the water inlet (17) and the water inlet joint (3) are in communication with each other; A filter cavity (11) is provided inside the cylinder (1), and a filter element A (12) and a filter element B (14) are arranged inside the filter cavity (11); the filter element A (12) is fixedly connected to the bottom of the filter cavity (11), and the filter element B (14) is arranged at the upper end of the filter element A (12).
2. A filter cartridge for water treatment according to claim 1, characterized in that: The upper end of the filter element B (14) is provided with a dirt-blocking pad (18), which is sleeved on the outer side of the water outlet pipe (15), and the dirt-blocking pad (18) is made of a polypropylene fiber pad.
3. A filter cartridge for water treatment according to claim 1, characterized in that: A fixing frame (13) is fixedly connected to the bottom of the filter cavity (11), and the filter element A (12) is fixedly connected to the fixing frame (13).
4. A filter cartridge for water treatment according to claim 1, characterized in that: The filter element A (12) is a PP melt-blown filter element, and the filter element B (14) is an activated carbon filter element or an ultrafiltration membrane filter element.
5. The filter cartridge for water treatment according to claim 1, characterized in that: The bottom of the filter element B (14) is fixedly connected with a filter layer (19), and the filter layer (19) is a fiber membrane filter layer.
6. A filter cartridge for water treatment according to claim 1, characterized in that: An elastic clamping claw (10) is arranged inside the cover body (2), and the elastic clamping claw (10) and the release switch (6) are connected to each other.
7. A filter cartridge for water treatment according to claim 1, characterized in that: Two sealing rings (16) are installed at the cylinder mouth (101) of the cylinder body (1).