Filter element assembly and mineral spring water purifier

Abstract

The utility model relates to the technical field of water treatment equipment, in particular to a filter element assembly and a mineral spring water purifier, the filter element assembly comprises a mineralization filter material and an antagonism filter material, an inner water path is arranged in the filter element assembly, and the mineralization filter material and the antagonism filter material are sequentially connected between a water inlet and a water outlet of the inner water path in series. Compared with the prior art, the mineralized filter material and the antagonistic filter material are matched with each other, and when water in the filter element assembly does not flow, the antagonistic filter material can inhibit dissolution of mineral substances in the mineralized filter material to a certain extent, so that the content of the mineral substances in the mineralized water can be effectively controlled.

Description

Technical Field

[0001] This application relates to the field of water treatment equipment technology, specifically to filter cartridges and mineral water purifiers. Background Technology

[0002] With the improvement of productivity, people's demand for quality of life and convenience is also increasing. Mineralized water is a type of water containing mineral salts and is rich in essential macro- and micro-elements for the human body. Therefore, mineralized water has become popular as drinking water. At the same time, there is also a certain demand for mineralized water containing specific mineral salts during production and experimental processes.

[0003] Currently, there are two common methods for preparing mineralized water. The first is to artificially mix mineral salts with water to create mineralized water of appropriate concentration. However, this method is very cumbersome, requires a certain level of chemical knowledge, and is relatively inefficient. The second method involves adding mineral-containing minerals to a container filled with water—such as a water dispenser or water purifier. The mineral salts in the minerals dissolve into the water in the container, transforming it into mineralized water. However, it is difficult to effectively control the mineral content of mineralized water prepared using this method. If the mineral content exceeds the standard, it can have negative effects on the user. Utility Model Content

[0004] Therefore, this application provides filter cartridges and mineral water purifiers that can effectively control the mineral content in mineralized water.

[0005] To solve the above-mentioned technical problems, one technical solution adopted in this application is: to provide a filter element assembly, including mineralized filter media and antagonistic filter media, wherein the filter element assembly is provided with an internal water channel, and the mineralized filter media and the antagonistic filter media are connected in series between the inlet and outlet of the internal water channel.

[0006] In one specific embodiment, the filter element assembly includes a filter cartridge, which is vertically arranged. The internal water passage is provided with a first receiving cavity and a second receiving cavity. The mineralized filter material is received in the first receiving cavity, and the antagonistic filter material is received in the second receiving cavity. The first receiving cavity and the second receiving cavity are arranged in the filter cartridge along the axial direction of the filter cartridge.

[0007] In one specific embodiment, the first receiving cavity is disposed above the second receiving cavity.

[0008] In one specific embodiment, the filter element assembly includes a first isolation member, the first isolation member having at least one first through hole, the first isolation member being disposed between the first receiving cavity and the second receiving cavity, and fluid in the first receiving cavity entering the second receiving cavity through at least one first through hole.

[0009] In one specific embodiment, the filter cartridge includes an outer cylinder and a first inner cylinder. The outer cylinder is sleeved around the outer periphery of the first inner cylinder. The first receiving cavity and the second receiving cavity are arranged from top to bottom inside the first inner cylinder. The upper end of the first inner cylinder is provided with a first inlet and the lower end is provided with a first outlet. The water inlet and the water outlet are arranged at the lower end of the outer cylinder. The first outlet is connected to the water outlet, and the first inlet is connected to the water inlet.

[0010] In one specific embodiment, the filter element assembly further includes a second isolation member, the second isolation member having at least one second through hole, the inner water passage including a first water inlet passage disposed between the outer cylinder and the first inner cylinder; the second isolation member covering the first inlet, the fluid in the first water inlet passage entering the first receiving cavity through at least one second through hole; and / or, the second isolation member disposed between the second receiving cavity and the first outlet, the fluid in the second receiving cavity entering the first outlet through at least one second through hole.

[0011] In one specific embodiment, the filter cartridge includes an outer cylinder and a second inner cylinder. The outer cylinder is sleeved around the outer periphery of the second inner cylinder, and the second receiving cavity is disposed inside the second inner cylinder. The mineralized filter material and the second inner cylinder are arranged from top to bottom along the axial direction of the filter cartridge. The upper end of the second inner cylinder is provided with a second inlet, and the lower end is provided with a second outlet. The water inlet and the water outlet are disposed at the lower end of the outer cylinder. The first isolation member is covered on the second inlet, and the second outlet is connected to the water outlet.

[0012] In one specific embodiment, the filter element assembly further includes a first end cap, and the mineralized filter material has a first central channel. The first end cap and the first isolation member are respectively covered at both ends of the mineralized filter material. One end of the first central channel is blocked by the first end cap, and the other end is connected to the first through hole.

[0013] In one specific embodiment, the filter element assembly further includes a second end cap, the antagonistic filter material has a second central channel, one end of the antagonistic filter material is connected to the second inner cylinder, and the other end is covered with the second end cap, one end of the second central channel is connected to the second outlet of the second inner cylinder, and the other end is blocked by the second end cap.

[0014] To solve the above-mentioned technical problems, another technical solution adopted in this application is: to provide a mineral water purifier, including a main body of the device and a filter element assembly as described in any of the above specific embodiments, wherein the main body of the device is connected to the inlet and outlet of the filter element assembly.

[0015] The beneficial effects of this application include: the mineralizing filter media and the antagonistic filter media are arranged in series in the internal water channel of the filter element assembly. Under the continuous outflow of water from the filter element assembly, the minerals in the mineralizing filter media are normally dissolved into the outflowing water, and the antagonistic substances in the antagonistic filter media can also be normally dissolved into the outflowing water. Since the antagonistic filter media is located downstream of the mineralizing filter media, the antagonistic substances do not affect the dissolution of minerals during the outflow. Furthermore, since the outflowing water stays at the mineralizing filter media for a short time, the risk of the mineral content of the outflowing water exceeding the standard is low. When the filter element assembly is not immersed in the outflowing water, the immersion water in the internal water path no longer flows solely through the mineralizing filter media and then the antagonistic filter media. The immersion water connects both the mineralizing and antagonistic filter media, allowing the antagonistic substances to also move towards the mineralizing filter media. During immersion, the immersion water and mineralizing filter media have sufficient contact time, and the antagonistic substances can inhibit the excessive dissolution of minerals into the immersion water, thereby controlling the mineral content of the immersion water and reducing the impact of immersion on the service life of the mineralizing filter media. Through the filter element assembly structure provided in this application, the mineral content in the mineralized water can be effectively controlled in both flow and immersion states, thereby improving the stability and usability of the filter element assembly. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the implementation will be briefly introduced below. Obviously, the drawings described below are some implementations of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0017] Figure 1 A schematic diagram of the assembly structure of the filter element assembly provided in this application;

[0018] Figure 2 A cross-sectional structural schematic diagram of a filter element assembly embodiment provided in this application, comprising a mineral-free filter material and an antagonistic filter material;

[0019] Figure 3 A cross-sectional view of an embodiment of the filter element assembly provided in this application;

[0020] Figure 4 This is an exploded cross-sectional view of an embodiment of the filter element assembly provided in this application;

[0021] Figure 5 A cross-sectional structural schematic diagram of a non-mineralized filter material and an antagonistic filter material according to another embodiment of the filter element assembly provided in this application;

[0022] Figure 6 A cross-sectional view of another embodiment of the filter element assembly provided in this application;

[0023] Figure 7This is an exploded cross-sectional view of another embodiment of the filter element assembly provided in this application;

[0024] Figure 8 It is H2CO3-HCO 3- -CO3 2- Equilibrium diagram in water.

[0025] Explanation of reference numerals in the attached figures:

[0026] 1. Filter element assembly; 2. Inner water channel; 21. First water inlet channel; 22. Water inlet; 23. Water outlet; 3. Filter cartridge; 31. Outer cylinder; 32. First inner cylinder; 321. First inlet; 322. First outlet; 33. Second inner cylinder; 331. Second inlet; 332. Second outlet; 4. First isolation element; 41. First through hole; 5. Second isolation element; 51. Second through hole; 61. First end cap; 62. Second end cap; 7. Connecting element; 8. First receiving cavity; 81. Mineralized filter media; 82. First central channel; 9. Second receiving cavity; 91. Antagonistic filter media; 92. Second central channel. Detailed Implementation

[0027] In this application, the terms "set up," "equipped with," and "connected" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; 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, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0028] The terms “center,” “longitudinal,” “lateral,” “length,” “width,” “thickness,” “upper,” “lower,” “front,” “rear,” “left,” “right,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” and “outer,” etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application 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. Therefore, they should not be construed as limitations on this application.

[0029] Furthermore, 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 technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0030] Furthermore, in addition to indicating location or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0031] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0032] With the improvement of productivity, people's demand for quality of life and convenience is also increasing. Mineralized water is a type of water containing mineral salts and is rich in essential macro- and micro-elements for the human body. Therefore, mineralized water has become popular as drinking water. At the same time, there is also a certain demand for mineralized water containing specific mineral salts during production and experimental processes.

[0033] Currently, there are two common methods for preparing mineralized water. The first is to artificially mix mineral salts with water to create mineralized water of appropriate concentration. However, this method is very cumbersome, requires a certain level of chemical knowledge, and is relatively inefficient. The second method involves adding mineral-containing minerals to a container filled with water—such as a water dispenser or water purifier. The mineral salts in the minerals dissolve into the water in the container, transforming it into mineralized water. However, it is difficult to effectively control the mineral content of mineralized water prepared using this method. If the mineral content exceeds the standard, it can have negative effects on the user.

[0034] In order to improve or solve the above technical problems, the inventors of this application, after long-term research, have proposed at least the following embodiments.

[0035] See Figures 1 to 7 , Figure 1 This is a schematic diagram of the assembly structure of the filter element assembly provided in this application. Figure 2 A cross-sectional structural schematic diagram of a filter element assembly embodiment provided in this application, showing the non-mineralized filter material and the antagonistic filter material. Figure 3 This is a cross-sectional structural diagram of an embodiment of the filter element assembly provided in this application. Figure 4 This is an exploded cross-sectional view of an embodiment of the filter element assembly provided in this application. Figure 5 This is a cross-sectional structural schematic diagram of another embodiment of the filter element assembly provided in this application, showing the non-mineralized filter material and the antagonistic filter material. Figure 6 This is a cross-sectional structural schematic diagram of another embodiment of the filter element assembly provided in this application. Figure 7This is an exploded cross-sectional view of another embodiment of the filter element assembly provided in this application. Specific embodiments of this application provide a filter element assembly 1 for treating fluids. The filter element assembly 1 may include mineralizing filter media 81 and antagonistic filter media 91.

[0036] The filter element assembly 1 has an internal water passage 2, and a mineralizing filter media 81 and an antagonistic filter media 91 are connected in series between the inlet 22 and the outlet 23 of the internal water passage 2. The mineralizing filter media 81 contains soluble minerals, and the antagonistic filter media 91 contains an anti-antagonistic substance that can inhibit the leaching of minerals from the mineralizing filter media 81.

[0037] In the structure provided in this specific embodiment, the mineralizing filter media 81 and the antagonistic filter media 91 are arranged in series in the internal water passage 2 of the filter element assembly 1. During the continuous outflow of water from the filter element assembly 1, the minerals in the mineralizing filter media 81 dissolve normally into the flowing water, and the antagonistic substances in the antagonistic filter media 91 also dissolve normally into the flowing water. Since the antagonistic filter media 91 is located downstream of the mineralizing filter media 81, the antagonistic substances do not affect the dissolution of minerals during the outflow process. Furthermore, because the flowing water stays at the mineralizing filter media 81 for a short time, the risk of the mineral content in the flowing water exceeding the standard is low.

[0038] When the filter element assembly 1 is no longer immersed in the outflowing water, the immersion water in the inner water path 2 no longer flows solely through the mineralizing filter media 81 and then through the antagonistic filter media 91. The immersion water connects the mineralizing filter media 81 and the antagonistic filter media 91, allowing the antagonistic substances to also move towards the mineralizing filter media 81. During immersion, the immersion water and the mineralizing filter media 81 have sufficient contact time, and the antagonistic substances can inhibit the excessive dissolution of minerals into the immersion water, thereby controlling the mineral content of the immersion water and reducing the impact of immersion on the service life of the mineralizing filter media 81. Through the filter element assembly 1 structure provided in this application, the mineral content in the mineralized water can be effectively controlled in both the flow and immersion states, thereby improving the stability and usability of the filter element assembly 1.

[0039] For example, the mineralizing filter material 81 can be a zinc mineralizing filter material 81 or a copper mineralizing filter material 81, that is, the mineralizing filter material 81 contains zinc and / or copper. The antagonistic filter material 91 can be an alkaline filter material. The alkaline substances dissolved from the antagonistic filter material 91 can inhibit the dissolution of zinc and copper elements in the mineralizing filter material 81. Optionally, the antagonistic filter material 91 may include at least one of materials such as calcite, aragonite, magnesite, and dolomite. The mineralizing filter material 81 may include at least one of materials such as smithsonite, calamine, and hydrozinc ore.

[0040] Specifically, the dissolution reaction of zinc (containing zinc-containing materials, such as smithsonite) in water is: ZnCO3 = Zn 2+ +CO3 2-Under normal conditions (e.g., pure water obtained after RO membrane filtration), Zn 2+ The saturated solubility of Zn in water can reach 6.0 mg / L, far exceeding the national standard limit of 1.0 mg / L. Furthermore, under constant water quality conditions, Zn... 2+ and CO3 2- It is dissolved simultaneously. Therefore, CO3 2- By controlling the concentration of Zn to the lowest possible level, 2+ The saturated dissolution concentration is controlled at the lowest level.

[0041] like Figure 8 As shown, Figure 8 It is H2CO3-HCO 3- -CO3 2- Equilibrium diagram in water. When the pH of the water is acidic, due to the presence of H+ in the system... + Excessive plasma inhibits the continued release of H2CO3 through hydrolysis. + As the pH value of the water gradually increases, the H in the system... + As plasma gradually decreases, the inhibitory effect on H2CO3 hydrolysis gradually diminishes, and H... + As ions are gradually released through hydrolysis, H2CO3 in the water is first converted into HCO3-. 3- As the pH value of the water continues to rise, HCO3- 3- H in + Ions also continued to be released, HCO3- 3- Gradually converted into CO3 2- It is not difficult to see that CO3 2- Its content in water bodies is clearly correlated with the pH value of the water body.

[0042] When the pH value is (approximately) 8.3, CO3 2- The concentration of Zn is at its lowest level, at which point... 2+ The concentration of Zn in the soaking water was also at the lowest level, theoretically calculated to be 0.36 mg / L, which meets the standard limit. That is, by adjusting the pH of the water used to soak the zinc-containing filter to around 8.3, the Zn concentration can be reduced. 2+ The concentration is precisely controlled between 0.2-1.0 mg / L.

[0043] The following example illustrates the effect of different alkaline water pH values ​​on the zinc concentration in the soaking water. A modified smithsonite with a pore-forming agent ratio of 2% and a co-solvent ratio of 1.0% was selected. The instantaneous zinc concentration in the effluent after a 1000L flow and the zinc concentration in the soaking water after 12 hours of soaking were recorded, as shown in Table 1.

[0044] Table 1

[0045]

[0046]

[0047] Referring to Table 1, when no alkaline substances are added, the pH of the soaking water is 6, which is weakly acidic. At this pH, zinc leaching from both the flowing water and the soaking water is not inhibited, resulting in a high zinc concentration in the soaking water, exceeding the standard limit. Even when the pH of the soaking water is 7.2, the zinc concentration still exceeds the standard. When the pH of the soaking water is between 8.0 and 8.5, CO3... 2 The concentration of Zn is at its lowest level. 2+ The concentration of zinc in the soaking water was also at the minimum level, between 0.2 and 1.0 mg / L, which meets the standard. When the pH of the soaking water was 9.0, the alkalinity of the alkaline substance was relatively strong, and the zinc dissolution was excessively inhibited during overflow. The zinc concentration in both the overflow and soaking water was below 0.2 mg / L, which does not meet the standard.

[0048] Optionally, the mineralizing filter media 81 can be a mineralizing filter media 81 used to adjust the pH value of the water, and the antagonistic filter media 91 can be a neutralizing filter media used to neutralize the pH value of the water. The minerals dissolved from the mineralizing filter media 81 can raise the pH value of the water. In specific applications, the pH value of the water can be adjusted by these minerals. The antagonistic filter media 91 can be used to neutralize the minerals to control the pH value of the water, so that the overall pH value of the effluent can be stabilized within the set pH range (generally 7.0 to 9.0).

[0049] In one specific embodiment of this application, the filter element assembly 1 may specifically include a filter cartridge 3, which is vertically arranged. The inner water passage 2 is successively provided with a first receiving cavity 8 and a second receiving cavity 9. Mineralized filter material 81 is received in the first receiving cavity 8, and antagonistic filter material 91 is received in the second receiving cavity 9. The first receiving cavity 8 and the second receiving cavity 9 are arranged along the axial direction of the filter cartridge 3 within the filter cartridge 3.

[0050] In the structure provided in this specific embodiment, the filter cartridge 3 of the filter element assembly 1 is arranged vertically, and the first receiving cavity 8 and the second receiving cavity 9 are also arranged vertically. Regardless of whether it is in the flow state or the soaking state, the water in the filter element assembly 1 can come into contact with the mineralized filter material 81 and the antagonistic filter material 91, thereby effectively controlling the mineral content in the mineralized water and improving the stability and usability of the filter element assembly 1.

[0051] In one specific embodiment of this application, the first receiving cavity 8 is disposed above the second receiving cavity 9.

[0052] In the structure provided in this specific embodiment, the first receiving cavity 8 is disposed above the second receiving cavity 9. In the flow state, water can enter the second receiving cavity 9 through the mineralized filter media 81 in the first receiving cavity 8 under the action of gravity. Due to the presence of gravity, the probability of backflow is low, and the filtration process is also promoted. In the soaking state, the water in the first receiving cavity 8 and the second receiving cavity 9 can also flow between each other. Therefore, regardless of whether it is the flow state or the soaking state, the mineral content in the mineralized water can be effectively controlled, thereby improving the stability and usability of the filter element assembly 1.

[0053] In one specific embodiment of this application, the filter element assembly 1 includes a first separator 4, which has at least one first through hole 41. The first separator 4 is disposed between a first receiving cavity 8 and a second receiving cavity 9, and fluid in the first receiving cavity 8 enters the second receiving cavity 9 through at least one first through hole 41.

[0054] In the structure provided in this specific embodiment, the first isolation member 4 is used to separate the first receiving cavity 8 and the second receiving cavity 9, so that the water in the first receiving cavity 8 can only enter the second receiving cavity 9 through the first through hole 41. Thus, the first through hole 41 is used to restrict the water flow between the first receiving cavity 8 and the second receiving cavity 9, such as controlling the flow rate, flow volume and flow direction, so that the water between the first receiving cavity 8 and the second receiving cavity 9 can flow evenly, thereby improving the stability and availability of the filter element assembly 1.

[0055] Optionally, there can be multiple first through holes 41, which are evenly distributed on the first isolation member 4, allowing the fluid between the first receiving cavity 8 and the second receiving cavity 9 to flow evenly through the multiple first through holes 41. This avoids the problem of excessive water flow concentration between the first receiving cavity 8 and the second receiving cavity 9, which could lead to excessively high flow velocity and severe scouring in local areas, thereby affecting the service life of the mineralized filter material 81 and the antagonistic filter material 91.

[0056] See Figures 1-5 In one specific embodiment of this application, the filter cartridge 3 includes an outer cylinder 31 and a first inner cylinder 32. The outer cylinder 31 is sleeved around the outer periphery of the first inner cylinder 32. A first receiving cavity 8 and a second receiving cavity 9 are disposed inside the first inner cylinder 32 from top to bottom. The upper end of the first inner cylinder 32 is provided with a first inlet 321, and the lower end of the first inner cylinder 32 is provided with a first outlet 322. A water inlet 22 and a water outlet 23 are disposed at the lower end of the outer cylinder 31. The first outlet 322 is connected to the water outlet 23, and the first inlet 321 is connected to the water inlet 22.

[0057] In the structure provided in this specific embodiment, the first inner cylinder 32 is used to limit the mineralizing filter material 81 and the antagonistic filter material 91, which can control the water flow direction in the flow state to flow from the first receiving cavity 8 into the second receiving cavity 9. Moreover, the first inlet 321 is set at the upper end of the first inner cylinder 32, so that the water level between the outer cylinder 31 of the filter element assembly 1 and the first inner cylinder 32 must rise to submerge the upper end of the first inner cylinder 32 in order to enter the first receiving cavity 8 through the first inlet 321. This can maintain the water level in the filter element assembly 1 and allow the mineralizing filter material 81 to fully contact the water.

[0058] Furthermore, the first outlet 322 is located at the lower end of the first inner cylinder 32. The water entering the first receiving cavity 8 through the first inlet 321 is filtered by the mineralizing filter material 81 and the antagonistic filter material 91 under the pressure of the flowing water. At the same time, it is also subjected to gravity. Gravity can further improve the efficiency of the mineralizing filter material 81 and the antagonistic filter material 91 in filtering water. Thus, while the mineralizing filter material 81 and the antagonistic filter material 91 are in more complete contact with the water, the working efficiency of the filter element assembly 1 is improved by utilizing natural gravity.

[0059] In one specific embodiment of this application, the filter element assembly 1 may further include a second separator 5, the second separator 5 having at least one second through hole 51, and the inner water passage 2 including a first water inlet passage 21, the first water inlet passage 21 being disposed between the outer cylinder 31 and the first inner cylinder 32. The second separator 5 may cover the first inlet 321, and the fluid in the first water inlet passage 21 enters the first receiving cavity 8 through at least one second through hole 51.

[0060] In the structure provided in this specific embodiment, similar to the first isolation member 4, the water flow from the first water inlet 21 into the first receiving cavity 8 through the first inlet 321 can be controlled by setting the second isolation member 5. The water flow between the first receiving cavity 8 and the first water inlet 21 can be restricted by the second through hole 51, such as controlling the flow rate, flow rate and flow direction, so that the water between the first receiving cavity 8 and the first water inlet 21 can flow evenly, thereby improving the stability and availability of the filter element assembly 1.

[0061] Optionally, the second isolation member 5 may be disposed between the second receiving cavity 9 and the first outlet 322, and the fluid in the second receiving cavity 9 may enter the first outlet 322 through at least one second through hole 51.

[0062] In the structure provided in this specific embodiment, similar to the first isolation member 4, the second isolation member 5 is used to separate the second receiving cavity 9 from the first outlet 322, so that the water in the second receiving cavity 9 can only enter the first outlet 322 through the second through hole 51. Thus, the second through hole 51 is used to restrict the water flow between the second receiving cavity 9 and the first outlet 322, such as controlling the flow rate, flow volume and flow direction, so that the water between the second receiving cavity 9 and the first outlet 322 can flow evenly, thereby improving the stability and availability of the filter element assembly 1.

[0063] Optionally, there can be multiple second through holes 51, which are evenly distributed on the second isolation member 5, allowing fluid to flow evenly between the first receiving cavity 8 and the first water inlet 21, and / or between the second receiving cavity 9 and the first outlet 322. This avoids excessive water flow concentration between the first receiving cavity 8 and the first water inlet 21, and / or between the second receiving cavity 9 and the first outlet 322, which could lead to excessively high flow velocity and severe scouring in localized areas, thereby affecting the service life of the mineralized filter material 81 and / or the antagonistic filter material 91.

[0064] See Figure 6 , Figure 7 In one specific embodiment of this application, the filter cartridge 3 may include an outer cylinder 31 and a second inner cylinder 33, with the outer cylinder 31 sleeved around the outer periphery of the second inner cylinder 33. A second receiving cavity 9 is disposed inside the second inner cylinder 33, and the mineralized filter material 81 and the second inner cylinder 33 are arranged from top to bottom along the axial direction of the filter cartridge 3. The upper end of the second inner cylinder 33 is provided with a second inlet 331, and the lower end of the second inner cylinder 33 is provided with a second outlet 332. The inlet 22 and the outlet 23 are disposed at the lower end of the outer cylinder 31, the first isolation member 4 is covered on the second inlet 331, and the second outlet 332 is connected to the outlet 23.

[0065] In the structure provided in this specific embodiment, the second inner cylinder 33 and the first isolation member 4 are used to form a second receiving cavity 9, thereby restricting the direction of water flow in the flow state. The second inlet 331 is located at the upper end of the first inner cylinder 32, so that the water level between the outer cylinder 31 of the filter element assembly 1 and the second inner cylinder 33 must rise to submerge the upper end of the second inner cylinder 33 before the water can enter the second receiving cavity 9 through the second inlet 331. This maintains the water level in the filter element assembly 1 and allows the mineralized filter material 81 to fully contact the water.

[0066] In one specific embodiment of this application, the filter element assembly 1 may further include a first end cap 61. A first central channel 82 may be provided in the mineralized filter material 81, and the first end cap 61 and the first separator 4 are respectively disposed on both ends of the mineralized filter material 81. The upper end of the first central channel 82 is blocked by the first end cap 61, and the other end is connected to the first through hole 41.

[0067] The first end cap 61 can be placed on the upper end of the mineralized filter material 81, and the first separator 4 can be placed on the lower end of the mineralized filter material 81. In the structure provided in this specific embodiment, the water filtered by the mineralized filter material 81 is guided by the first central channel 82, and this water is guided to flow into the second receiving cavity 9 through the first through hole 41. The first end cap 61 can ensure that all water entering the first central channel 82 is filtered by the mineralized filter material 81, thereby improving the stability and availability of the filter element assembly 1.

[0068] In one specific embodiment of this application, the filter element assembly 1 may further include a second end cap 62. A second central channel 92 may be provided in the antagonistic filter material 91, with one end of the antagonistic filter material 91 connected to the second inner cylinder 33, and the other end capped with the second end cap 62. One end of the second central channel 92 is connected to the second outlet 332 of the second inner cylinder 33, while the other end is blocked by the second end cap 62.

[0069] The second end cap 62 can be placed on the upper end of the antagonistic filter media 91. In the structure provided in this specific embodiment, similar to the first end cap 61, the second central channel 92 can be used to guide the water filtered by the antagonistic filter media 91, guiding this part of the water to be output to the outside of the filter element assembly 1 through the second outlet 332. The second end cap 62 can ensure that all the water entering the second central channel 92 is filtered by the antagonistic filter media 91, thereby improving the stability and availability of the filter element assembly 1.

[0070] Optionally, both the first central channel 82 and the second central channel 92 can be arranged along the axial direction of the filter element assembly 1. This maintains the balance of the center of gravity of the filter element assembly 1 and improves its structural stability.

[0071] Optionally, see Figures 2-7 The filter element assembly 1 may include a connecting member 7. One end of the connecting member 7 is connected to the second outlet 332 or the first outlet 322, and the other end of the connecting member 7 is connected to the water outlet 23, thereby guiding the water flowing out of the second outlet 332 or the first outlet 322 and separating the water outlet 23 from the first water inlet 21 in the outer cylinder 31, so that this part of the water can be smoothly output to the outside of the filter element assembly 1 through the water outlet 23, and reducing the probability of crossflow, backflow and other phenomena in the flow state.

[0072] This application also provides a mineral water purifier, including a main body and a filter assembly as described in any of the above embodiments. The main body can be connected to the inlet 22 and outlet 23 of the filter assembly 1, respectively.

[0073] In the structure provided in this specific embodiment, the mineralizing filter media 81 and the antagonistic filter media 91 are arranged in series in the internal water passage 2 of the filter element assembly 1. During the continuous outflow of water from the filter element assembly 1, the minerals in the mineralizing filter media 81 dissolve normally into the flowing water, and the antagonistic substances in the antagonistic filter media 91 also dissolve normally into the flowing water. Since the antagonistic filter media 91 is located downstream of the mineralizing filter media 81, the antagonistic substances do not affect the dissolution of minerals during the outflow process. Furthermore, because the flowing water stays at the mineralizing filter media 81 for a short time, the risk of the mineral content in the flowing water exceeding the standard is low.

[0074] When the filter element assembly 1 stops immersing in water, the immersion water in the inner water path 2 no longer flows solely through the mineralizing filter media 81 and then the antagonistic filter media 91. The immersion water connects the mineralizing filter media 81 and the antagonistic filter media 91, allowing the antagonistic substances to also move towards the mineralizing filter media 81. During immersion, the immersion water and the mineralizing filter media 81 have sufficient contact time, and the antagonistic substances can inhibit the excessive dissolution of minerals into the immersion water, thereby controlling the mineral content of the immersion water and reducing the impact of immersion on the service life of the mineralizing filter media 81. Through the filter element assembly 1 structure provided in this application, the mineral content in the mineralized water can be effectively controlled in both flow and immersion states, thereby improving the stability and usability of the mineral water purifier.

[0075] In this application, the terms "embodiment" and "implementation" mean that a specific feature, structure, or characteristic described in connection with an embodiment can be included in at least one embodiment of this application. The appearance of these phrases in various locations throughout the specification does not necessarily refer to the same embodiment, nor are they independent or alternative embodiments mutually exclusive with other embodiments. Those skilled in the art will understand, explicitly and implicitly, that the embodiments described in this application can be combined with other embodiments. Furthermore, it should be understood that the features, structures, or characteristics described in the various embodiments of this application can be arbitrarily combined to form yet another embodiment that does not depart from the spirit and scope of the technical solution of this application, provided there is no contradiction between them.

[0076] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application and are not intended to limit it. Although this application has been described in detail with reference to the above preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions to the technical solutions of this application should not depart from the spirit and scope of the technical solutions of this application.

Claims

1. A filter element assembly, characterized in that, comprising a mineralization filter material (81) and an antagonistic filter material (91), an inner water channel (2) is arranged in the filter element assembly (1), and the mineralization filter material (81) and the antagonistic filter material (91) are sequentially connected between the water inlet (22) and the water outlet (23) of the inner water channel (2).

2. The filter element assembly according to claim 1, characterized in that, the filter element assembly (1) comprises a filter cartridge (3), the filter cartridge (3) is vertically arranged, the inner water channel (2) is sequentially provided with a first accommodating cavity (8) and a second accommodating cavity (9), the mineralization filter material (81) is accommodated in the first accommodating cavity (8), the antagonistic filter material (91) is accommodated in the second accommodating cavity (9), and the first accommodating cavity (8) and the second accommodating cavity (9) are arranged in the filter cartridge (3) along the axial direction of the filter cartridge (3).

3. The filter cartridge assembly of claim 2, wherein, The first accommodating cavity (8) is arranged above the second accommodating cavity (9).

4. The filter cartridge assembly of claim 3, wherein, The filter element assembly (1) comprises a first separation piece (4) provided with at least one first through hole (41), the first separation piece (4) is arranged between the first accommodating cavity (8) and the second accommodating cavity (9), and the fluid in the first accommodating cavity (8) enters the second accommodating cavity (9) through at least one first through hole (41).

5. The filter element assembly according to claim 4, characterized in that, the filter cartridge (3) comprises an outer cylinder (31) and a first inner cylinder (32), the outer cylinder (31) is sleeved on the outer periphery of the first inner cylinder (32), the first accommodating cavity (8) and the second accommodating cavity (9) are arranged in the first inner cylinder (32) from top to bottom, the upper end of the first inner cylinder (32) is provided with a first inlet (321), and the lower end is provided with a first outlet (322), the water inlet (22) and the water outlet (23) are arranged at the lower end of the outer cylinder (31), the first outlet (322) is connected with the water outlet (23), and the first inlet (321) is connected with the water inlet (22).

6. The filter element assembly according to claim 5, characterized in that, the filter element assembly (1) further comprises a second separation piece (5) provided with at least one second through hole (51), the inner water channel (2) comprises a first water inlet channel (21), and the first water inlet channel (21) is arranged between the outer cylinder (31) and the first inner cylinder (32); the second separation piece (5) is arranged on the first inlet (321), the fluid in the first water inlet channel (21) enters the first accommodating cavity (8) through at least one second through hole (51); and / or, the second separation piece (5) is arranged between the second accommodating cavity (9) and the first outlet (322), and the fluid in the second accommodating cavity (9) enters the first outlet (322) through at least one second through hole (51).

7. The filter element assembly according to claim 4, characterized in that, The filter cartridge (3) comprises an outer cylinder (31) and a second inner cylinder (33), the outer cylinder (31) is sleeved on the outer periphery of the second inner cylinder (33), the second containing cavity (9) is arranged in the second inner cylinder (33), and the mineralized filter material (81) and the second inner cylinder (33) are arranged from top to bottom along the axial direction of the filter cartridge (3); the upper end of the second inner cylinder (33) is provided with a second inlet (331), and the lower end is provided with a second outlet (332); the water inlet (22) and the water outlet (23) are arranged at the lower end of the outer cylinder (31); the first isolation piece (4) is arranged on the second inlet (331); and the second outlet (332) is connected with the water outlet (23).

8. The filter cartridge assembly of claim 7, wherein, The filter cartridge assembly (1) further comprises a first end cover (61), a first central passage (82) is arranged in the mineralized filter material (81), the first end cover (61) and the first isolation piece (4) are arranged on both ends of the mineralized filter material (81) respectively, and one end of the first central passage (82) is blocked by the first end cover (61), and the other end is connected with the first through hole (41).

9. The filter cartridge assembly of claim 8, wherein, The filter cartridge assembly (1) further comprises a second end cover (62), a second central passage (92) is arranged in the antagonistic filter material (91), one end of the antagonistic filter material (91) is connected with the second inner cylinder (33), and the other end is provided with the second end cover (62); one end of the second central passage (92) is connected with the second outlet (332) of the second inner cylinder (33), and the other end is blocked by the second end cover (62).

10. A mineral water purifier, characterized by, Comprise: The filter cartridge assembly (1) according to any one of claims 1-9; An equipment body is connected with the water inlet (22) and the water outlet (23) of the filter cartridge assembly (1).

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