PROC composite filter element and water purifier
By using AFC carbon fiber and RO reverse osmosis membrane spiral winding and ROC connection end cap design in the filter element, the problems of large filter element volume and long water path are solved, achieving a compact structure and high-efficiency filtration, ensuring pure water quality.
Patent Information
- Application Number
- CN202421811432.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-30
- Publication Date
- 2025-11-04
- Estimated Expiration
- 2034-07-30
AI Technical Summary
Existing filter cartridges have a large volume and long water channels, resulting in a poor user experience and low filtration efficiency.
The AFC carbon fiber and RO reverse osmosis membrane are spirally wound onto the ROC water collection pipe to form an integrated structure. Combined with the ROC connection end cap design, the three water paths are concentrated on one end cap, and the filter element is isolated by a water-stop sealing ring. Multiple filter layers are set to prevent carbon particles from flowing out.
This achieves a compact filter element structure, reduces volume, improves filtration efficiency, ensures pure water quality, prevents mutual contamination during filtration, and avoids water leakage.
Smart Images
Figure CN223509754U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of filter technology, and in particular relates to a PROC composite filter and a water purifier. Background Technology
[0002] A water purifier takes water in, filters out the mixture in the water, and discharges pure water. The filter element is the core component of a water purifier. As people's pursuit of quality increases, the existing filter element structure is large in size and has a long water channel, resulting in a poor user experience.
[0003] Therefore, there is an urgent need for a PROC composite filter element and water purifier to solve the above-mentioned technical problems. Utility Model Content
[0004] The purpose of this invention is to provide a PROC composite filter element and a water purifier to solve the above-mentioned technical problems.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a PROC composite filter element and a water purifier, comprising a cylinder, a pre-filter PPC filter element, and a ROC reverse osmosis filter element, with an ROC connection end cap provided between the pre-filter PPC filter element and the ROC reverse osmosis filter element; the cylinder includes a raw water inlet, a pure water outlet, and a concentrated water outlet, with one-way valves provided at the raw water inlet, pure water outlet, and concentrated water outlet; the upper part of the cylinder contains the ROC reverse osmosis filter element, and the lower part contains the pre-filter PPC filter element; the pre-filter PPC filter element includes a PP pleated filter element and a pre-carbon rod, with the PP pleated filter element sleeved outside the pre-carbon rod, forming a raw water inlet channel between the pre-filter PPC filter element and the cylinder; the ROC reverse osmosis filter element forms a concentrated water channel between the ROC reverse osmosis filter element and the cylinder, and the ROC reverse osmosis filter element includes an ROC water collection pipe, AFC carbon fiber, and an RO reverse osmosis membrane, with the AFC carbon fiber disposed in the middle of the RO reverse osmosis membrane. AFC carbon fiber and RO reverse osmosis membrane are spirally wound onto the ROC water collection pipe in an integrated structure; a pure water pipe is connected to the lower end of the center of the ROC connection end cap, and the pure water pipe and the ROC water collection pipe form a pure water path.
[0006] The AFC carbon fiber is closely attached to the inside of the RO reverse osmosis membrane, and the AFC carbon fiber is located in the pure water bag area inside the RO reverse osmosis membrane; the outer ring of the ROC water collection pipe is closely attached to the inner ring of the RO reverse osmosis membrane, and multiple filter holes are provided in the gaps inside the ROC water collection pipe.
[0007] The ROC connection end cap is provided with an ROC inlet, an ROC concentrate outlet, a pure water pipe interface, and a water-stop sealing ring; the pure water pipe interface is located in the middle of the ROC connection end cap and is connected to the top of the pure water pipe; the ROC concentrate outlet extends from the ROC connection end cap to the outer ring of the pure water pipe interface; the ROC inlet is arranged around the outer ends of the pure water pipe interface and the ROC concentrate outlet; the water-stop sealing ring is arranged around the outer ring of the ROC connection end cap, separating the ROC reverse osmosis filter element and the pre-filter PPC filter element at the upper and lower ends of the cylinder.
[0008] The upper ends of the PP pleated filter element and the pre-carbon rod are located below the ROC connection end cap, and the lower ends of the PP pleated filter element and the pre-carbon rod are abutted against a fixed end cap, which is located at the lower end of the cylinder. The inner ring of the pre-carbon rod is provided with an inner hole, and a cylindrical spunbond is provided on the inner hole.
[0009] A pre-filter sleeve is provided between the pre-filter PPC cartridge and the pure water pipe, forming a concentrated water path between the pre-filter sleeve and the pure water pipe, and the concentrated water path is connected to the concentrated water outlet.
[0010] The inner hole of the pre-carbon rod and the pre-sleeve form an ROC water inlet channel.
[0011] The ROC inlet of the ROC connection end cap is ultrasonically welded with spunlace cotton material.
[0012] The water outlet of the pure water pipe at the lower end of the pure water circuit is ultrasonically welded with spunlace cotton.
[0013] The upper end of the cylinder is provided with a cylinder end cap.
[0014] The water purifier includes the aforementioned PROC composite filter cartridge.
[0015] Compared with the prior art, the beneficial effects of this utility model are:
[0016] This invention integrates AFC carbon fiber and RO reverse osmosis membrane into an integrated structure by spirally winding them onto the ROC water collection pipe, making the ROC reverse osmosis filter element more compact and reducing the overall size of the machine. The AFC carbon fiber is located inside the RO reverse osmosis membrane, which can further improve the taste.
[0017] By setting up the ROC connection end cap, the three water paths are designed together on one end cap. At the same time, the water-stop sealing ring isolates the pre-PPC filter and the ROC reverse osmosis filter, preventing mutual interference and contamination during the filtration process, which would render the filtration ineffective.
[0018] In the process of water flow, the water path of this utility model is shorter than that of existing filter cartridges, thus increasing the filtration efficiency.
[0019] By setting up a three-stage structure to intercept carbon particles, the problem of carbon leakage reported by users is solved in multiple ways, ensuring the quality of the filtered pure water.
[0020] By installing a check valve, water is prevented from flowing out when the filter is removed;
[0021] The PROC composite filter element of this invention has a more compact structure, smaller size, and higher filtration efficiency. Attached Figure Description
[0022] Figure 1 This is a schematic diagram of a PROC composite filter element and a water purifier.
[0023] Figure 2 This is a schematic diagram of the ROC connection end cap;
[0024] In the diagram: 1. Shell; 101. Raw water inlet; 102. Pure water outlet; 103. Concentrate outlet; 104. Check valve; 105. Shell end cap; 2. Pre-filter PPC cartridge; 201. PP pleated filter cartridge; 202. Pre-filter carbon rod; 2021. Inner hole; 3. ROC reverse osmosis cartridge; 301. ROC water collection pipe; 302. AFC carbon fiber; 303. RO reverse osmosis membrane; 4. ROC connection end cap; 401. ROC inlet; 402. ROC concentrate outlet; 403. Pure water pipe interface; 404. Water-stop sealing ring; 5. Raw water inlet channel; 6. Concentrate channel; 7. Pure water channel; 8. Pure water pipe; 9. Fixed end cap; 10. Pre-filter sleeve; 11. Concentrate channel; 12. ROC inlet channel. Detailed Implementation
[0025] 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.
[0026] Please see Figure 1-2This utility model provides a technical solution: a PROC composite filter element and water purifier, including a cylinder 1, a pre-filter PPC element 2 and a ROC reverse osmosis filter element 3, with an ROC connection end cap 4 between the pre-filter PPC element 2 and the ROC reverse osmosis filter element 3; the cylinder 1 includes a raw water inlet 101, a pure water outlet 102, and a concentrated water outlet 103, with a one-way valve 104 at each outlet; the upper part of the cylinder 1 contains the ROC reverse osmosis filter element 3, and the lower part contains the pre-filter PPC element 2; the pre-filter PPC element 2 includes a PP pleated filter element 201 and a pre-carbon rod 202, with the PP pleated filter element 201 sleeved over the pre-carbon rod 202, forming a raw water inlet channel 5 between the pre-filter PPC element 2 and the cylinder 1; the ROC reverse osmosis filter element 3 forms a concentrated water channel 6 between itself and the cylinder 1, and the ROC... The reverse osmosis filter element 3 includes an ROC water collection pipe 301, an AFC carbon fiber 302, and an RO reverse osmosis membrane 303. The AFC carbon fiber 302 is disposed in the middle of the RO reverse osmosis membrane 303. The AFC carbon fiber 302 and the RO reverse osmosis membrane 303 are spirally wound on the ROC water collection pipe 301 to form an integral structure. The lower end of the center of the ROC connection end cap 4 is connected to a pure water pipe 8, and the pure water pipe 8 and the ROC water collection pipe 301 form a pure water passage 7.
[0027] The AFC carbon fiber 302 is tightly attached to the inside of the RO reverse osmosis membrane 303, and is located in the pure water bag area inside the RO reverse osmosis membrane 303, which plays a role in improving the taste and is a key part of water quality. The outer ring of the ROC water collection pipe 301 is tightly attached to the inner ring of the RO reverse osmosis membrane 303. Multiple filter holes are provided in the gaps inside the ROC water collection pipe 301, so that the filtered water enters the ROC water collection pipe 301. The ROC water collection pipe 301, AFC carbon fiber 302 and RO reverse osmosis membrane 303 are integrated wound structures, which are tightly attached to each other, making the structure of the ROC reverse osmosis filter element 3 more compact. Compared with the existing nested structure, the ROC reverse osmosis filter element 3 has a smaller volume.
[0028] Meanwhile, AFC charcoal fiber 302 has a larger instantaneous specific surface area and a stronger instantaneous adsorption capacity than charcoal sticks, which can further improve the taste.
[0029] The ROC connection end cap 4 is equipped with an ROC inlet 401, an ROC concentrate outlet 402, a pure water pipe interface 403, and a water-stop sealing ring 404. The pure water pipe interface 403 is located in the middle of the ROC connection end cap 4 and is connected to the top of the pure water pipe 8. Filtered water enters the ROC water collection pipe 301 and then enters the pure water pipe 8 through the pure water pipe interface 403. The ROC concentrate outlet 402 extends from the ROC connection end cap 4 to the outer ring of the pure water pipe interface 403. The ROC inlet 401 is arranged around the outer ends of the pure water pipe interface 403 and the ROC concentrate outlet 402. The ROC connection end cap 4 allows the three water paths in the filtration process—the water path, the concentrate outlet water path, and the pure water path 7—to be designed together on one end cap, saving costs and shortening the water path in the water filtration process, thereby increasing filtration efficiency.
[0030] The water-stop sealing ring 404 is arranged around the outer ring of the ROC connection end cap 4, which can separate the ROC reverse osmosis filter element 3 and the pre-PPC filter element 2 at the upper and lower ends of the cylinder 1, preventing mutual interference and contamination during the filtration process, thus making the filtration ineffective.
[0031] The upper end of the cylinder 1 is provided with a cylinder end cap 105.
[0032] Specifically, the pre-filter PPC cartridge 2 and the ROC reverse osmosis cartridge 3 are integrated into one cartridge to form a closed-loop water circuit with the cylinder 1 and the cylinder end cap 105. The pre-filter PPC cartridge 2 and the cylinder 1 form the raw water inlet water circuit 5, which is separated from the lower part of the cylinder 1 by a water-stop sealing ring 404. The ROC reverse osmosis cartridge 3 and the cylinder 1 form the concentrate channel 6, which is separated from the upper part of the cylinder 1 by a water-stop sealing ring 404.
[0033] During use, the ROC connection end cap 4 leads the water in the pre-carbon rod 202 to the ROC reverse osmosis filter element 3 for filtration. The ROC water collection pipe 301 is connected to the ROC connection end cap 4. The filtered water enters the pure water pipe 8 through the pure water pipe interface 403. The concentrate channel 6 is connected to the ROC concentrate outlet 402 of the ROC connection end cap 4 to discharge the concentrate.
[0034] The upper ends of the PP pleated filter element 201 and the pre-carbon rod 202 are located below the ROC connection end cap 4, and the lower ends of the PP pleated filter element 201 and the pre-carbon rod 202 abut against the fixed end cap 9, which is located at the lower end of the cylinder 1; the inner ring of the pre-carbon rod 202 is provided with an inner hole 2021, and a cylindrical spunbond is provided on the inner hole 2021 to provide the first protection against carbon particles from flowing out.
[0035] The ROC inlet 401 of the ROC connection end cap 4 is ultrasonically welded with spunlace cotton material to provide a second layer of protection against carbon particles entering the RO reverse osmosis membrane 303, thus preventing the RO reverse osmosis membrane 303 from becoming clogged quickly.
[0036] At the outlet of the pure water pipe 8 at the lower end of the pure water circuit 7, spunlace cotton is ultrasonically welded to form a third layer to intercept carbon particles from flowing out. Together with the first and second layers of protection, a total of three layers of interception are formed to solve the carbon leakage problem reported by users and ensure the quality of the filtered pure water.
[0037] A pre-filter sleeve 10 is provided between the pre-filter PPC filter element 2 and the pure water pipe 8. A concentrated water passage 11 is formed between the pre-filter sleeve 10 and the pure water pipe 8. The concentrated water passage 11 is connected to the concentrated water outlet 103. The concentrated water is discharged through the ROC concentrated water outlet 402 into the concentrated water passage 11 and discharged from the filter element through the concentrated water outlet 103.
[0038] The inner hole 2021 of the pre-carbon rod 202 and the pre-sleeve 10 form an ROC water inlet channel 12. After being filtered by the pre-PPC filter element 2, the water enters the ROC inlet 401 through the ROC water inlet channel 12 and then enters the ROC reverse osmosis filter element 3 for filtration.
[0039] The one-way valve 104 is installed on each water inlet and outlet of the cylinder 1 to prevent water from flowing out when the filter is removed.
[0040] This embodiment also provides a water purifier, including the aforementioned PROC composite filter element.
[0041] During operation, raw water enters the raw water inlet channel 5 through the raw water inlet 101, passes through the PP pleated filter element 201 to the pre-carbon rod 202, and removes sediment, residual chlorine, etc. from the water. Water enters the ROC inlet 401 through the inlet channel 1 and reaches the ROC reverse osmosis filter element 3. After being filtered by the ROC reverse osmosis filter element 3, pure water enters the ROC water collection pipe 301, flows out through the pure water pipe interface 403 to the pure water pipe 8, and then flows out through the pure water outlet 102. At the same time, the concentrated water filtered by the ROC reverse osmosis filter element 3 is discharged through the ROC concentrated water outlet 402 into the concentrated water channel 11 and then out of the filter element through the concentrated water outlet 103.
[0042] 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 PROC composite filter element, characterized in that, The system includes a cylindrical body (1), a pre-filter PPC cartridge (2), and a reverse osmosis (ROC) cartridge (3). An ROC connection end cap (4) is provided between the pre-filter PPC cartridge (2) and the ROC cartridge (3). The cylindrical body (1) includes a raw water inlet (101), a pure water outlet (102), and a concentrated water outlet (103). A one-way valve (104) is provided at the raw water inlet (101), the pure water outlet (102), and the concentrated water outlet (103). The upper part of the cylindrical body (1) is provided with the ROC cartridge (3), and the lower part of the cylindrical body (1) is provided with the pre-filter PPC cartridge (2). The pre-filter PPC cartridge (2) includes a PP pleated filter cartridge (201) and a pre-carbon rod (202). The PP pleated filter cartridge (201) is sleeved on the pre-carbon rod (202), and a raw water inlet channel (5) is formed between the pre-filter PPC cartridge (2) and the cylindrical body (1). The ROC cartridge (3) is provided with the ROC cartridge (4). A concentrated water channel (6) is formed between the reverse osmosis filter element (3) and the cylinder (1). The ROC reverse osmosis filter element (3) includes an ROC water collection pipe (301), an AFC carbon fiber (302), and an RO reverse osmosis membrane (303). The AFC carbon fiber (302) is placed in the middle of the RO reverse osmosis membrane (303). The AFC carbon fiber (302) and the RO reverse osmosis membrane (303) are spirally wound on the ROC water collection pipe (301) in an integrated structure. A pure water pipe (8) is connected to the lower end of the center of the ROC connection end cap (4). A pure water channel (7) is formed between the pure water pipe (8) and the ROC water collection pipe (301).
2. The PROC composite filter element according to claim 1, characterized in that: The AFC carbon fiber (302) is closely attached to the inside of the RO reverse osmosis membrane (303), and the AFC carbon fiber (302) is located in the pure water bag area inside the RO reverse osmosis membrane (303); the outer ring of the ROC water collection pipe (301) is closely attached to the inner ring of the RO reverse osmosis membrane (303), and multiple filter holes are provided in the gap inside the ROC water collection pipe (301).
3. The PROC composite filter element according to claim 1, characterized in that: The ROC connection end cap (4) is provided with an ROC inlet (401), an ROC concentrate outlet (402), a pure water pipe interface (403), and a water-stop sealing ring (404); the pure water pipe interface (403) is located in the middle of the ROC connection end cap (4) and is connected to the top of the pure water pipe (8); the ROC concentrate outlet (402) is opened through the ROC connection end cap (4) to the outer ring of the pure water pipe interface (403); the ROC inlet (401) is arranged around the outer ends of the pure water pipe interface (403) and the ROC concentrate outlet (402); the water-stop sealing ring (404) is arranged around the outer ring of the ROC connection end cap (4) to separate the ROC reverse osmosis filter element (3) and the pre-filter PPC filter element (2) at the upper and lower ends of the cylinder (1).
4. The PROC composite filter element according to claim 1, characterized in that: The upper ends of the PP pleated filter element (201) and the pre-carbon rod (202) are located below the ROC connection end cap (4), and the lower ends of the PP pleated filter element (201) and the pre-carbon rod (202) are abutted against the fixed end cap (9), which is located at the lower end of the cylinder (1). The inner ring of the pre-carbon rod (202) is provided with an inner hole (2021), and a cylindrical spunbond is provided on the inner hole (2021).
5. A PROC composite filter element according to claim 1, characterized in that: A pre-filter sleeve (10) is provided between the pre-filter PPC filter element (2) and the pure water pipe (8), and a concentrated water path (11) is formed between the pre-filter sleeve (10) and the pure water pipe (8), and the concentrated water path (11) is connected to the concentrated water outlet (103).
6. The PROC composite filter element according to claim 1, characterized in that: The inner hole (2021) of the pre-carbon rod (202) and the pre-sleeve (10) form an ROC water inlet channel (12).
7. A PROC composite filter element according to claim 1, characterized in that: The ROC inlet (401) of the ROC connection end cap (4) is ultrasonically welded with spunlace cotton material.
8. A PROC composite filter element according to claim 1, characterized in that: Ultrasonic welding of spunlace cotton is performed at the outlet of the pure water pipe (8) at the lower end of the pure water channel (7).
9. A PROC composite filter element according to claim 1, characterized in that: The upper end of the cylinder (1) is provided with a cylinder end cap (105).
10. A water purifier, characterized in that, Includes the PROC composite filter element as described in any one of claims 1-9.