Large-flow ultrapure water filter element
By introducing a filter cartridge and scraper structure into the ultrapure water filter element, the problem of easy clogging of the filter element is solved, the service life is extended and the maintenance difficulty is reduced, and efficient water purification is achieved.
Patent Information
- Application Number
- CN202520480876.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-19
- Publication Date
- 2026-02-24
- Estimated Expiration
- 2035-03-19
AI Technical Summary
Existing filter cartridges have short lifespans and are easily clogged by particles such as sediment in the water, leading to decreased filtration efficiency and increased operating costs.
A high-flow-rate ultrapure water filter cartridge was designed, comprising a filter cartridge and a scraper structure. The filter cartridge initially filters large particulate impurities, while the scraper is driven by a rotating shaft to clean impurities from the inner wall of the filter cartridge, preventing clogging.
It extends the lifespan of the filter cartridge, reduces the frequency and cost of replacement, ensures the safety and purity of the water, and provides a convenient and efficient maintenance experience.
Smart Images

Figure CN223936248U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of water purification filter technology, specifically a high-flow-rate ultrapure water filter. Background Technology
[0002] Ultrapure water filter cartridges are key components in ultrapure water systems used to purify water. Their main function is to remove conductive media, colloidal substances, gases, and organic matter from the water to a very low level in order to produce ultrapure water with a resistivity generally greater than 10 megohms. High-quality ultrapure water can even reach 18.25 megohms.
[0003] The lifespan of existing filter cartridges is generally 3 to 6 months. If there are a lot of particles such as silt in the water, these particles will quickly clog the filter channels, causing the filter efficiency to drop sharply, thus significantly shortening the actual lifespan of the filter cartridge and increasing the user's operating costs. Utility Model Content
[0004] The purpose of this invention is to provide a high-flow-rate ultrapure water filter element, which effectively solves the problems mentioned in the background art.
[0005] To achieve the above objectives, the present invention provides the following technical solution.
[0006] A high-flow-rate ultrapure water filter element includes a cylinder and a cover. The filter element body is housed inside the cylinder. An inlet is located at the top of the cover, and an outlet is located on the outer surface of the cylinder. A filter cartridge is housed inside the cylinder, located inside and coaxially aligned with the filter element body. A housing is installed at the bottom of the cylinder, through which a rotating shaft is rotatably mounted. The upper end of the shaft extends into and coaxially aligns with the filter element body. A scraper is mounted on the outer surface of the shaft, and the outer surface of the scraper contacts the inner wall of the filter cartridge.
[0007] Furthermore, a drain port is provided at the bottom of the casing, and a drain cover is provided inside the drain port.
[0008] Furthermore, the bottom wall of the cylinder and the top wall of the cylinder cover are both provided with a first annular groove, and the upper and lower ends of the filter element body are both set in the first annular groove. The bottom wall of the cylinder and the top wall of the cylinder cover are both provided with a second annular groove, and the upper and lower ends of the filter element are both set in the second annular groove.
[0009] Furthermore, a crossbar is installed inside the water inlet, and an insertion hole is opened on the lower surface of the crossbar, with the upper end of the rotating shaft inserted into the insertion hole.
[0010] Furthermore, the cylinder cover is threaded to the cylinder body, a first sealing gasket is provided between the cylinder cover and the cylinder body, the drain cover is threaded to the drain port, a second sealing gasket is provided between the drain cover and the drain port, and a sealing ring is provided at the connection between the rotating shaft and the housing.
[0011] Furthermore, both the cylinder cover and the drain cover have anti-slip protrusions on their outer surfaces, and a knob is installed at the bottom of the rotating shaft.
[0012] Furthermore, the number of scrapers is set to four, and the four scrapers are set on the outer surface of the rotating shaft at equal angles to the same axis.
[0013] Furthermore, the filter cartridge is made of stainless steel.
[0014] Compared with the prior art, the beneficial effects of this utility model are as follows.
[0015] 1. By using a filter cartridge, this utility model can filter out large particles such as mud and sand in the water first, avoiding the situation where large particles adhere to the filter cartridge body and cause blockage of its filtration channels, thereby improving the actual service life of the filter cartridge body and reducing the replacement frequency and usage cost of the filter cartridge body.
[0016] 2. This utility model can drive the scraper to clean large particles of impurities attached to the inner wall of the filter cartridge by rotating the shaft, thereby effectively preventing the filter cartridge from clogging, ensuring the continuous filtration capacity of the filter cartridge, ensuring the safety and purity of the water quality, and eliminating the need to disassemble the filter cartridge, reducing maintenance difficulty and workload, and providing users with a more convenient and efficient water purification maintenance experience. Attached Figure Description
[0017] Figure 1 This is a three-dimensional schematic diagram of the overall structure of this utility model;
[0018] Figure 2 This is a frontal cross-sectional view of the present invention.
[0019] Figure 3 for Figure 2 Enlarged schematic diagram of the structure at point A in the middle;
[0020] Figure 4 for Figure 2 Enlarged schematic diagram of the structure at point B;
[0021] Figure 5 This is a schematic diagram of the cross-sectional structure of the filter cartridge in this utility model.
[0022] In the diagram: 100, cylinder body; 101, cylinder cover; 102, water inlet; 103, water outlet; 104, filter element body; 105, filter cartridge; 106, shell; 107, rotating shaft; 108, scraper; 200, drain port; 201, drain cover; 300, first annular groove; 301, second annular groove; 400, crossbar; 401, insertion hole; 500, first sealing gasket; 501, second sealing gasket; 600, knob. Detailed Implementation
[0023] 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.
[0024] In the description of the embodiments of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connection" and "installation" should be interpreted broadly. For example, "connection" can be a detachable connection or a non-detachable connection; it can be a direct connection or an indirect connection through an intermediate medium. Furthermore, "connection" can be a direct connection or an indirect connection through an intermediate medium. "Fixed" means that the relative positional relationship remains unchanged after the connection. The directional terms mentioned in the embodiments of this utility model, such as "inner," "outer," "top," and "bottom," are only for reference to the directions in the accompanying drawings. Therefore, the directional terms used are for better and clearer explanation and understanding of the embodiments of this utility model, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this utility model.
[0025] In this embodiment of the invention, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" and "second" may explicitly or implicitly include one or more of that feature.
[0026] Please see Figures 1-5 This utility model provides a high-flow-rate ultrapure water filter element, comprising a cylindrical body 100 and a cap 101. A filter element body 104 is disposed inside the cylindrical body 100. An inlet 102 is disposed at the top of the cap 101. An outlet 103 is disposed on the outer surface of the cylindrical body 100. A filter cartridge 105 is disposed inside the cylindrical body 100, located inside and coaxially aligned with the filter element body 104. A housing 106 is installed at the bottom of the cylindrical body 100. A rotating shaft 107 is rotatably mounted through the housing 106. The upper end of the rotating shaft 107 extends into and is coaxially aligned with the filter element body 104. A scraper 108 is mounted on the outer surface of the rotating shaft 107, and the outer surface of the scraper 108 contacts the inner wall of the filter cartridge 105.
[0027] In use, water enters the inner side of the filter cartridge 105 through the inlet 102. After initial filtration by the filter cartridge 105, it undergoes secondary filtration through the filter element body 104. The filtered water is then discharged out through the outlet 103, thus achieving ultrapure filtration of the water. During filtration, large particles such as mud and rust are filtered by the filter cartridge 105 and accumulate on the inner side of the filter cartridge 105. This reduces the burden on the filter element body 104, preventing large particles from directly impacting and clogging the filter element body 104, thereby extending the lifespan of the filter element body 105. The filter cartridge has a lifespan of 04, reducing the frequency and cost of replacing the filter element. When the inner wall of the filter cartridge 105 is covered with impurities, affecting the water flow efficiency, the rotating shaft 107 can be rotated directly from the outside. The rotating shaft 107 drives the scraper 108 to scrape and clean the inner wall of the filter cartridge 105, thereby effectively preventing the filter cartridge 105 from clogging, ensuring the continuous filtration capacity of the filter cartridge 105, ensuring the safety and purity of the water quality, and eliminating the need to disassemble the filter cartridge 105, reducing maintenance difficulty and workload, and providing users with a more convenient and efficient water purification maintenance experience.
[0028] Preferably, a drain port 200 is provided at the bottom of the housing 106, and a drain cover 201 is provided inside the drain port 200.
[0029] During use, first close the water valve, then open the drain cover 201, so that the impurities, particles and other dirt accumulated inside the filter cartridge 105 can be discharged outward, maintaining its ability to filter large particles and helping to maintain the filtration performance of the filter cartridge body 104, ensuring that the water quality is continuously and effectively purified.
[0030] Preferably, the bottom wall of the cylinder 100 and the top wall of the cylinder cover 101 are provided with a first annular groove 300, the upper and lower ends of the filter element body 104 are provided in the first annular groove 300, the bottom wall of the cylinder 100 and the top wall of the cylinder cover 101 are provided with a second annular groove 301, and the upper and lower ends of the filter cylinder 105 are provided in the second annular groove 301.
[0031] The first annular groove 300 and the second annular groove 301 provide positioning for the filter element body 104 and filter cartridge 105 during installation, ensuring accurate positioning and reducing the impact of water flow. Furthermore, when the filter cartridge 105 is severely clogged, it can be removed for deep cleaning when replacing the filter element body 104.
[0032] Preferably, a crossbar 400 is installed inside the water inlet 102, and an insertion hole 401 is opened on the lower surface of the crossbar 400, and the upper end of the rotating shaft 107 is inserted into the insertion hole 401.
[0033] When the cap 101 is installed on the cylinder 100, the end of the shaft 107 is inserted into the insertion hole 401. At this time, the insertion hole 401 can provide support for the end of the shaft 107, ensuring the stability of its structure, reducing the impact of water flow, and thus improving its service life.
[0034] Preferably, the cylinder cover 101 is threaded to the cylinder body 100, a first sealing gasket 500 is provided between the cylinder cover 101 and the cylinder body 100, the drain cover 201 is threaded to the drain port 200, a second sealing gasket 501 is provided between the drain cover 201 and the drain port 200, and a sealing ring is provided at the connection between the rotating shaft 107 and the housing 106.
[0035] The threaded connection, combined with the first sealing gasket 500 and the second sealing gasket 501, ensures a safe and reliable sealing effect and prevents leakage.
[0036] Preferably, the outer surfaces of both the cylinder cover 101 and the drain cover 201 are provided with anti-slip protrusions, and a knob 600 is installed at the bottom of the rotating shaft 107.
[0037] The anti-slip protrusions increase friction when turning the cylinder cover 101 and the drain cover 201, reducing the chance of slipping and improving operating efficiency. The knob 600 facilitates the rotation of the shaft 107, increasing torque.
[0038] Preferably, the number of scraper blades 108 is set to four, and the four scraper blades 108 are arranged coaxially and at equal angles on the outer surface of the rotating shaft 107.
[0039] The four scraper blades 108 not only improve the cleaning efficiency of the inner wall of the filter cartridge 105, but also provide uniform support to the inner wall of the filter cartridge 105, thereby reducing the deformation of the filter cartridge 105 under the impact of water flow and improving its service life.
[0040] Preferably, the filter cartridge 105 is made of stainless steel.
[0041] Stainless steel is corrosion-resistant and can prevent rusting during long-term use, thus ensuring water quality safety.
[0042] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
Claims
1. A high-flow-rate ultrapure water filter element, comprising a cylindrical body (100) and a cap (101), wherein a filter element body (104) is disposed inside the cylindrical body (100), characterized in that: The top of the cylinder cover (101) is provided with a water inlet (102), the outer surface of the cylinder body (100) is provided with a water outlet (103), the inside of the cylinder body (100) is provided with a filter cartridge (105), the filter cartridge (105) is located inside the filter element body (104) and is coaxial with it; A housing (106) is installed at the bottom of the cylinder (100). A rotating shaft (107) is rotatably installed inside the housing (106). The upper end of the rotating shaft (107) extends into the filter element body (104) and is coaxially arranged therewith. A scraper (108) is installed on the outer surface of the rotating shaft (107). The outer surface of the scraper (108) is in contact with the inner wall of the filter cylinder (105).
2. The high-flow-rate ultrapure water filter element according to claim 1, characterized in that: The bottom of the housing (106) is provided with a drain port (200), and the drain port (200) is provided with a drain cover (201).
3. The high-flow-rate ultrapure water filter element according to claim 1, characterized in that: The bottom wall of the cylinder (100) and the top wall of the cylinder cover (101) are both provided with a first annular groove (300). The upper and lower ends of the filter element body (104) are both located in the first annular groove (300). The bottom wall of the cylinder (100) and the top wall of the cylinder cover (101) are both provided with a second annular groove (301). The upper and lower ends of the filter cylinder (105) are both located in the second annular groove (301).
4. The high-flow-rate ultrapure water filter element according to claim 2, characterized in that: A crossbar (400) is installed inside the water inlet (102). The lower surface of the crossbar (400) is provided with a socket (401), and the upper end of the rotating shaft (107) is inserted into the socket (401).
5. A high-flow-rate ultrapure water filter element according to claim 2, characterized in that: The cylinder cover (101) is threadedly connected to the cylinder body (100), and a first sealing gasket (500) is provided between the cylinder cover (101) and the cylinder body (100). The drain cover (201) is threadedly connected to the drain port (200), and a second sealing gasket (501) is provided between the drain cover (201) and the drain port (200). A sealing ring is provided at the connection between the rotating shaft (107) and the housing (106).
6. A high-flow-rate ultrapure water filter element according to claim 2, characterized in that: The outer surfaces of the cylinder cover (101) and the drain cover (201) are provided with anti-slip protrusions, and a knob (600) is installed at the bottom of the rotating shaft (107).
7. A high-flow-rate ultrapure water filter element according to claim 1, characterized in that: The number of scraper blades (108) is four, and the four scraper blades (108) are arranged coaxially and at equal angles on the outer surface of the rotating shaft (107).
8. The high-flow-rate ultrapure water filter element according to claim 1, characterized in that: The filter cartridge (105) is made of stainless steel.