Filter element, filter cartridge and mineral spring water purifier

Abstract

The utility model is suitable for the technical field of mineralized water purification, and discloses a filter element, a filter cartridge and a mineral spring water purifier. The filter element comprises a filter element main body; the filter element main body at least comprises a first filter body and a second filter body; the first filter body is provided with at least two mineralized substances, the first filter body and the second filter body are adjacently arranged or nested, and an isolating part is arranged between the first filter body and the second filter body. An isolating part is arranged between the first filter body and the second filter body, so that the dissolution of mineral substances in the second filter body and the first filter body is not mutually influenced, and a water path is equivalent to a disconnected state in a soaking state, so that the situation that the dissolution of the mineral substances in the second filter body and the first filter body is influenced and excessive dissolution or insufficient dissolution is caused due to mixing of soaking water is avoided; therefore, the mineral concentration in the effluent can be ensured to be within a standard range.

Description

Technical Field

[0001] This utility model relates to the field of mineralized water purification technology, and in particular to a filter element, a filter cartridge, and a mineral water purifier. Background Technology

[0002] Traditional household water purifiers primarily use conventional filtration methods, employing standard filter cartridges. After activated carbon adsorption, reverse osmosis filtration is applied to produce purified water suitable for direct drinking. This is currently the most common filtration method used in household water purifiers on the market. Based on the working mechanism of reverse osmosis, it intercepts and filters out all substances except water molecules. This means that while removing contaminants from the water, it also filters out beneficial minerals. Long-term consumption of such water is detrimental to health and fails to meet people's high-end demands for health-promoting drinking water equipment. Utility Model Content

[0003] To address the issue of mineral content in drinking water, this invention provides a filter element, a filter cartridge, and a mineral water purifier, which helps meet people's high-end demand for drinking water equipment that is beneficial to health.

[0004] This utility model provides a filter element, including a filter element body, wherein the filter element body includes at least a first filter body and a second filter body;

[0005] The first filter body and the second filter body are arranged adjacently or nested, and an isolation component is provided between the first filter body and the second filter body.

[0006] Optionally, the isolation component is a one-way permeable component for unidirectional water flow, with the first filter body and the second filter body respectively disposed on both sides of the one-way permeable component.

[0007] Optionally, the isolation component is a pressure permeable component for passing through when the water flow reaches a preset pressure, and the first filter body and the second filter body are respectively disposed on both sides of the pressure permeable component.

[0008] Optionally, the isolation component is a non-porous partition, with the first filter body and the second filter body disposed on both sides of the partition;

[0009] Alternatively, the isolation component may be a non-porous central tube, with the first filter and the second filter disposed on opposite sides of the central tube.

[0010] The side wall of the central tube is provided with water-permeable holes, which are used to allow water to flow radially along the filter element body through the first filter body and the second filter body or through the second filter body and the first filter body.

[0011] Alternatively, the sidewall of the central tube is a non-porous water-blocking sidewall, and the water flows along the axial direction of the filter element body through the first filter body and the second filter body respectively.

[0012] Optionally, the first filter body and the second filter body are arranged vertically or horizontally adjacent to each other;

[0013] Alternatively, the first filter body is cylindrical, the second filter body is cylindrical or columnar, the first filter body is fitted onto the outside of the second filter body, and the isolation component is tubular and disposed between the first filter body and the second filter body.

[0014] Optionally, the second filter body has an anti-antagonistic filter material that can suppress the precipitation of minerals from the mineralized filter material in the first filter body.

[0015] Optionally, the first filter body is a metal mineralized filter material, and the second filter body is an alkaline filter material;

[0016] Alternatively, the first filter element may be an alkaline mineralized filter material, and the second filter element may be a zinc-containing filter material.

[0017] This utility model also provides a filter cartridge, including a shell and the above-mentioned filter element, wherein the filter element is disposed inside the shell;

[0018] The cylindrical shell is provided with a series water passage structure for water to flow sequentially through the first filter body and the second filter body along the radial direction of the filter element;

[0019] Alternatively, the shell is provided with a series water passage structure for water to flow sequentially through the second filter body and the first filter body along the radial direction of the filter element;

[0020] Alternatively, the shell is provided with a parallel water passage structure for supplying water to flow along the axial direction of the filter element through the first filter body and the second filter body respectively.

[0021] This utility model also provides a mineral water purifier, which includes the above-mentioned filter element, or the mineral water purifier includes the above-mentioned filter cartridge.

[0022] This utility model provides a filter element, filter cartridge, and mineral water purifier. The filter element is a mineralized filter element, and an isolation component is provided between the first filter body and the second filter body to ensure that the dissolution of minerals in the second filter body and the first filter body does not affect each other. In the soaking state, the water circuit is essentially disconnected, preventing the mixing of soaking water from affecting the dissolution of minerals in the second filter body and the first filter body, resulting in excessive or insufficient dissolution. This helps to ensure that the mineral concentration in the output water is within the standard range to meet different usage needs, so that the water contains mineral components that are beneficial to human health, which is conducive to meeting users' high-end needs for drinking water that is beneficial to health. Attached Figure Description

[0023] Figure 1 A cross-sectional view of a filter element (first filter body and second filter body connected in series) provided in an embodiment of the present utility model.

[0024] Figure 2 A cross-sectional view of a filter element (first filter body and second filter body connected in parallel) provided for an embodiment of the present utility model;

[0025] Figure 3 A longitudinal cross-sectional view of a filter element provided in an embodiment of this utility model (two filter bodies are connected in series along the radial direction of the water path);

[0026] Figure 4 A longitudinal cross-sectional view of a filter element provided in an embodiment of this utility model (two filter bodies are connected in series along the axial direction of the water channel).

[0027] Figure 5 A schematic diagram of the water circuit (parallel water circuit) of a filter cartridge provided for an embodiment of this utility model.

[0028] Figure 6 A water circuit diagram (series water circuit) of a filter cartridge provided for an embodiment of this utility model.

[0029] Figure 7 This is a three-dimensional cross-sectional view of a filter cartridge provided in an embodiment of the present utility model. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0031] It should be noted that the terms "setup" and "connection" should be interpreted broadly. For example, they can refer to direct setup or connection, or indirect setup or connection through centered components or centered structures.

[0032] Furthermore, in embodiments of this utility model, terms such as "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer" are used to indicate orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, or in a conventional placement or usage state. These terms are merely for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the structure, feature, device, or element referred to must have a specific orientation or positional relationship, nor that it must be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In the description of this utility model, unless otherwise stated, "multiple" means two or more.

[0033] The various specific technical features and embodiments described in the detailed embodiments can be combined in any suitable manner without contradiction. For example, different implementation methods can be formed by combining different specific technical features / embodiments. In order to avoid unnecessary repetition, the various possible combinations of the various specific technical features / embodiments in this utility model will not be described separately.

[0034] This utility model provides a filter element, such as Figures 1 to 6 As shown, the filter element includes a filter cartridge body, which includes at least a first filter element 110 and a second filter element 120. The first filter element 110 and the second filter element 120 are separately configured, meaning that the first filter element 110 and the second filter element 120 are formed separately and then assembled to form the filter cartridge. The first filter element 110 and / or the second filter element 120 are mineralized filter elements; the first filter element 110 has at least two minerals and can dissolve at least two minerals, including brucite and sepiolite. The first filter element 110 and the second filter element 120 are arranged adjacently or nested. An isolation component 192 is provided between the first filter element 110 and the second filter element 120 to ensure that the dissolution of minerals in the second filter element 120 and the first filter element 110 does not affect each other. When the first filter element 110 and the second filter element 120 are connected in series, the water flow has a certain pressure and can pass through the first filter element 110, the isolation component 192, and the second filter element 120 sequentially. When the water flow stops, the water on the second filter body 120 side cannot pass through the isolation component 192 to the first filter body 120 side, and the water on the first filter body 110 side cannot pass through the isolation component 192 to the second filter body 120 side. That is, in the soaking state, the water path is equivalent to being disconnected, so as to avoid the mixing of soaking water, which would affect the dissolution of minerals in the second filter body 120 and the first filter body 110, resulting in excessive or insufficient dissolution, so as to ensure that the mineral concentration in the effluent is within the standard range.

[0035] In specific applications, the first filter body 110 may include both zinc-containing minerals and alkaline minerals. In specific applications, the first filter body 110 may be a metal mineralized filter material, and the second filter body 120 may be an alkaline filter material.

[0036] Specifically, the isolation component 192 is a unidirectional permeable component (unidirectional permeable membrane) for unidirectional water flow, with the first filter body and the second filter body disposed on opposite sides of the unidirectional permeable component. In specific applications, the unidirectional permeable component can be provided with multiple unidirectional permeable structures, such as duckbill valves, which allow only unidirectional water flow. The second filter body 120 does not interfere with the leaching of minerals in the first filter body 110. For example, the first filter body 110 is an alkaline mineralized filter material, and the second filter body 120 is a zinc-containing filter material.

[0037] Specifically, the isolation component 192 can also be a pressure permeable component for water flow to pass through when the water flow reaches a preset pressure. The first filter body 110 and the second filter body 120 are respectively disposed on both sides of the pressure permeable component, that is, the direction of water flow is determined / switched according to the magnitude of the water pressure difference on both sides.

[0038] Specifically, the isolation component 192 can also be a non-porous partition, with the first filter body 110 and the second filter body 120 respectively disposed on both sides of the partition. The first filter body 110 and the second filter body 120 are block-shaped or columnar and are connected in parallel. Alternatively, the isolation component 192 can be a non-porous central tube, with the first filter body 110 and the second filter body 120 respectively disposed on both sides (outer and inner sides) of the central tube, and the first filter body 110 and the second filter body 120 can be connected in parallel.

[0039] In specific applications, the sidewall of the central tube can also be provided with water-permeable holes, allowing water to flow radially along the filter element body through the first filter body 110 and the second filter body 120 sequentially, or sequentially through the second filter body 120 and the first filter body 110. Alternatively, the sidewall of the central tube can also be a non-porous water-blocking sidewall, and the central tube can be a plastic tube or a metal tube, with water flowing axially along the filter element body through the first filter body 110 and the second filter body 120 respectively.

[0040] In specific applications, the first filter body 110 and the second filter body 120 can be arranged vertically or horizontally adjacent to each other, with an isolation component 192 between them. Alternatively, the first filter body 110 can be cylindrical, and the second filter body 120 can be cylindrical or columnar, with the first filter body 110 fitted over the outside of the second filter body 120, and the isolation component 192 being tubular and disposed between the first filter body 110 and the second filter body 120.

[0041] The first filter element 110 and the second filter element 120 are arranged radially separately, which facilitates assembly and allows for flexible assembly as needed during production. By setting two different first filter elements 110 and second filter elements 120, different usage requirements can be met. The filter element provided in this embodiment is a mineralization filter element. By setting at least two different first filter elements 110 and second filter elements 120 in the mineralization filter element, the water contains mineral components that are beneficial to human health, which helps to meet users' high-end demand for drinking water that is beneficial to health.

[0042] In practical applications, mineralizing filter cartridges can be used in conjunction with conventional filter cartridges (such as RO membrane filter cartridges). That is, the mineralizing filter cartridge can be placed downstream of the filter cartridge. The pure water formed by the filter cartridge passes through the mineralizing filter cartridge, and the mineralizing filter cartridge can dissolve an appropriate amount of minerals in the water, so that the drinking water supplied to users has an appropriate amount of minerals, which is beneficial to the health of users.

[0043] In practical applications, each filter element can be separated and fixedly connected radially or axially, resulting in high space utilization inside the filter cartridge and convenient assembly.

[0044] Specifically, the first filter body 110 may be cylindrical and have openings at both ends, and the second filter body 120 may be cylindrical (e.g., ...). Figure 3 (as shown) or columnar (such as) Figure 4 As shown), the shape of the second filter body 120 can match the inner cavity shape of the first filter body 110; the two ends of the second filter body 120 are aligned with the two ends of the first filter body 110.

[0045] Specifically, such as Figure 7 As shown, end caps 221 and 222 are provided at both ends of the filter element body along the axial direction, and the filter element body can be disposed between the two end caps 221 and 222.

[0046] Specifically, the isolation component 192 is a central tube, the first filter body 110 is sleeved on the outside of the central tube, and the second filter body 120 is inserted into the inside of the central tube, which facilitates assembly. The central tube can be a plastic part. In some embodiments, water flow can flow radially through the first filter body 110 and the second filter body 120 sequentially, or water flow can flow radially through the second filter body 120 and the first filter body 110 sequentially, with the first filter body 110 and the second filter body 120 connected in series, such as... Figure 1 and Figure 3 As shown.

[0047] Alternatively, the sidewall of the central tube is a non-porous water-blocking sidewall, preventing water flow from passing through it. Instead, the water flows axially along the filter element body, passing through the first filter body 110 and the second filter body 120, respectively. The first filter body 110 and the second filter body 120 are connected in parallel. Figure 2 and Figure 4 As shown.

[0048] Specifically, the filter elements can be connected in series. For example, consider a configuration with two filter elements (i.e., the first filter element 110 and the second filter element 120). Figure 3 As shown in the figure, taking the direction of the water flow as an example, the water flows radially through the first filter body 110 and the second filter body 120. The first filter body 110 and the second filter body 120 can dissolve different minerals respectively.

[0049] Specifically, as a first optional combination scheme for the mineralized filter cartridge, the second filter body 120 is a mineralized filter material capable of dissolving minerals, and the first filter body 110 is a promoting filter material used to facilitate the dissolution of minerals from the mineralized filter material. The water in the filter cartridge can first pass through the promoting filter material and then through the mineralized filter material, thus promoting the dissolution of minerals in the mineralized filter material. The mineral dissolution rate is relatively fast, which can meet the needs of users with high-flow-rate water use. That is, even at a large flow rate, the mineral content can still meet national or industry standards, avoiding insufficient mineral dissolution leading to low mineral content. In specific applications, the promoting filter material can also be selectively connected in series upstream of the mineralized filter material. The water can pass through the first filter body 120 and the second filter body 110 sequentially (i.e., the filter bodies are connected in series) to meet usage requirements.

[0050] In practical applications, water can flow sequentially through the second filter body 120 and the first filter body 110. The first filter body 110 is a mineralized filter material containing calcium and / or magnesium, and the second filter body 120 is an acidic filter material. The second filter body 120 includes or is a weakly acidic ore, while the first filter body 110 is a calcium- and magnesium-rich ore. The acidic substances dissolved from the second filter body 120 can promote the dissolution of calcium and magnesium elements from the first filter body 110.

[0051] Alternatively, as a second optional combination of mineralized filter cartridges, the first filter body 110 is a mineralized filter material that can dissolve minerals, and the second filter body 120 is an anti-antagonistic filter material that can inhibit the dissolution of minerals from the mineralized filter material. That is, the second filter body 120 can dissolve an anti-antagonistic substance used to inhibit the dissolution of minerals in the first filter body 110. In some scenarios, when the filter body inside the cartridge is in a soaking state, the dissolution of certain minerals may exceed the set standard, which is detrimental to health if consumed directly. This combination solution, by setting an anti-antagonistic filter material, allows the anti-antagonistic filter material to inhibit the dissolution of minerals from the mineralized filter material, thereby preventing the mineral content from exceeding the corresponding safety standards. The first filter body 110 can be disposed outside the second filter body 120, and the second filter body 120 can be cylindrical (e.g., ...). Figure 3 and Figure 4 (as shown) or solid columnar (such as) Figure 5 and Figure 6 (As shown). In specific applications, the first filter element 110 is a strongly alkaline filter material, and the second filter element 120 is a weakly alkaline filter material. The alkalinity between the weakly alkaline and strongly alkaline filter materials can be considered relative, meaning the alkalinity of the first filter element 110 is higher than that of the second filter element 120. The isolation component 192 is a unidirectional permeable component for unidirectional water flow, ensuring that water can only flow from the first filter element 110 to the second filter element 120. In specific applications, the strongly alkaline filter material (made of strongly alkaline materials), such as magnesia, with the chemical composition Mg(OH)2, can directly release (dissolve) OH- in water. - (Reaction a: Mg(OH)2=Mg)2+ +2OH - This increases the alkalinity of the water, while weakly alkaline filter media (made of weakly alkaline materials), such as calcite, whose chemical composition is CaCO3, need to release CO3 into the water first. 2- (Reaction b: CaCO3 = Ca) 2+ +CO3 2- ), then CO3 2- It undergoes a hydrolysis reaction with H2O to produce OH- - (Reaction c: CO3) 2- +H2O HCO3 - +OH - Strongly alkaline materials can produce OH- in just one reaction step. - Weakly basic materials require two steps of reaction to obtain OH. - Furthermore, the rate of reaction c is much lower than the rate of reaction a, therefore the strongly alkaline material preferentially releases OH-. - Reaction c is a reversible reaction. When reaction a occurs preferentially, the chemical equilibrium of reaction c shifts to the left. Therefore, strongly basic materials can suppress the OH- of weakly basic materials. - Release. In this combination, strong alkaline materials and weak alkaline materials are combined and assembled to form an inner and outer separate structure. Strong and weak alkaline materials can be assembled within the same filter element. The inhibitory effect of the strong alkaline material on the weak alkaline material can be utilized. Throughout the filter element's service life, the strong alkaline material releases OH- in the early stages. - In the middle and later stages, it releases OH- along with weakly alkaline materials. - The two can work together to greatly extend the lifespan of the filter element, thus achieving a longer filter element lifespan.

[0052] Alternatively, as a third optional combination of mineralized filter elements, the first filter element 110 is a mineralized filter media for adjusting the pH value of the water, and the second filter element 120 is a neutralizing filter media for neutralizing the pH value of the water. The mineralized filter media of the first filter element 110 can raise the pH value of the water; in specific applications, the pH value of the water can be adjusted by the water flow rate. The second filter element 120 is used to neutralize the pH value of the water, such as... Figure 5 As shown, the first filter body 110 and the second filter body 120 can be connected in parallel in the water circuit. By adjusting the water flow of the first filter body 110 and the second filter body 120 respectively, the pH value of the overall effluent can be stabilized within the set pH range (generally 7.0 to 9.0).

[0053] In specific applications, as a fourth optional combination scheme for mineralized filter elements, the first filter body 110 is a first mineralized filter material that can dissolve the first mineral, and the second filter body 120 is a non-mineralized filter material, that is, the second filter body 120 can be a pure carbon rod or a ceramic filter body, etc., used to adsorb larger impurities and remove odors.

[0054] In specific applications, as the sixth optional combination scheme for mineralized filter elements, the first filter element 110 is an alkaline filter material (weakly alkaline), and the second filter element 120 is a metasilicic acid filter material. Metasilicic acid (H2SiO3) can be generated by the hydrolysis reaction of silicate minerals in water. Taking sodium silicate (Na2SiO3) as an example, SiO3... 2- +H2O H₂SiO₃ + 2OH⁻ - H2SiO3 + H2O H₂SiO₄ exists, but metasilicic acid and orthosilicic acid (H₂SiO₄) are in dynamic equilibrium. Orthosilicic acid is a strong acid and can exist stably in an acidic environment; therefore, in an alkaline environment, H₂SiO₃ + H₂O occurs. The equilibrium of H4SiO4 shifts to the left, meaning the content of orthosilicic acid decreases while the concentration of metasilicic acid increases. However, excessive alkalinity inhibits the hydrolysis of silicate ions, thus reducing the formation of metasilicic acid. Therefore, an appropriate alkalinity value can promote the formation of metasilicic acid. In specific applications, by having water flow through the first filter body 110 and the second filter body 120 sequentially, the dissolution of metasilicic acid can be promoted, allowing the metasilicic acid content to reach the set standard.

[0055] Specifically, the first filter body 110 may be cylindrical, and the second filter body 120 may be cylindrical or columnar; the second filter body 120 may be cylindrical, polygonal columnar, frustum-shaped, etc.

[0056] Specifically, the first filter body 110 and the second filter body 120 have a substrate, which is a carbon rod filter element, a ceramic filter element or carbon fiber; mineralized filter material, promoting filter material, anti-antagonistic filter material or neutralizing filter material is dispersed in the substrate or attached to the surface of the substrate.

[0057] This embodiment also provides a filter element design method for designing the above-mentioned filter element. The filter element includes a filter element body, and the filter element body includes at least a first filter body 110 and a second filter body 120. The first filter body 110 has at least two mineralized substances. The first filter body 110 and the second filter body 120 are arranged adjacently or nested. An isolation component 192 is provided between the first filter body 110 and the second filter body 120.

[0058] As the first design scheme in the design method, the first filter element 110 is designed to inhibit the dissolution of minerals in the second filter element 120. Specifically, the first filter element 110 can be designed as a strongly alkaline filter element, and the second filter element 120 can be designed as a weakly alkaline filter element. The weakly alkaline filter element is designed to release CO3 into the water. 2- , using CO3 2- It undergoes a reversible hydrolysis reaction with H2O to produce OH- -Strongly alkaline filter media can directly release (dissolve) OH- in water. - Taking Mg(OH)2 as an example, the strongly alkaline material in a strongly alkaline filter is reacted as follows: Mg(OH)2 = Mg 2+ +2OH - This increases the alkalinity of the water, while weakly alkaline filters, such as those using CaCO3, require the release of CO3 into the water first. 2- Reaction b: CaCO3 = Ca 2+ +CO3 2- Then CO3 2- It undergoes a hydrolysis reaction with H2O to produce OH- - Reaction c: CO3 2- +H2O HCO3 - +OH - Strongly alkaline filters require only one reaction step to obtain OH-. - A weakly alkaline filter requires two steps to obtain OH-. - Furthermore, the rate of reaction c is much lower than the rate of reaction a, therefore the strongly alkaline filter preferentially releases OH-. - Reaction c is a reversible reaction. When reaction a occurs preferentially, the chemical equilibrium of reaction c shifts to the left. Therefore, a strongly basic filter can inhibit the OH- of a weakly basic filter. - Release. Strongly alkaline and weakly alkaline filter elements are assembled into a separate structure. The strongly alkaline and weakly alkaline filter elements can be assembled within the same filter housing. The inhibitory effect of the strongly alkaline filter element on the weakly alkaline filter element can be utilized. During the entire service life of the filter element, the strongly alkaline material releases OH- in the early stages. - In the middle and later stages, it releases OH- along with weakly alkaline materials. - The two can work together to greatly extend the lifespan of the filter element, thus achieving a longer filter element lifespan.

[0059] This utility model embodiment also provides a filter cartridge, such as Figures 1 to 7 As shown, the system includes a housing 210 and the aforementioned filter element, which is disposed within the housing 210. The housing 210 is provided with a filter element inlet and a filter element outlet. The filter element inlet is used to connect to the filter element inlet pipe 310. The filter element outlet is used to connect to the filter element outlet pipe 320.

[0060] Specifically, the cylindrical shell 210 may be provided with a series water passage structure for water to flow sequentially through the first filter body 110 and the second filter body 120, such as... Figure 6As shown, the series water flow structure can flow radially through the first filter body 110 and the second filter body 120 in sequence. In specific applications, the series water flow structure can enter the filter cylinder from the bottom of the shell 210, flow upward along the inner side of the filter cylinder, and flow radially through the first filter body 110 and the second filter body 120 in sequence before flowing out from the filter cylinder outlet to the filter cylinder outlet pipe 320.

[0061] Alternatively, the shell 210 may be provided with a series water passage structure for water to flow sequentially through the second filter body 120 and the first filter body 110; the series water passage structure can enter the filter cylinder from the bottom of the shell 210, flow upward and, radially, pass sequentially through the second filter body 120 and the first filter body 110 before flowing out from the outlet of the filter cylinder.

[0062] Alternatively, the shell 210 may be equipped with a parallel water path structure for supplying water to flow through the first filter body 110 and the second filter body 120 respectively. The parallel water path structure may have two branch water paths flowing axially through the first filter body 110 and the second filter body 120 to meet the needs of different scenarios. When three filter bodies are provided, the parallel water path structure may have three branch water paths flowing through the first filter body 110, the second filter body 120, and the third filter body 130 respectively. In specific applications, each branch water path may be equipped with a control valve or flow valve. The filter cartridge may be connected to a water path plate, which has control water paths corresponding to each branch water path. The control water path control valves or flow valves control the amount of water flowing through each filter body (first filter body 110, second filter body 120) to obtain the required drinking water.

[0063] In practical applications, the filter element includes filter bodies (first filter body 110, second filter body 120, ...), and also includes a first end cap 221 and a second end cap 222. The first end cap 221 and the second end cap 222 are respectively disposed at the upper and lower ends of the filter element. The first filter body 110 and the second filter body 120 may be cylindrical. In practical applications, the first end cap 221 or the second end cap 222 may be provided with flow holes.

[0064] This utility model also provides a mineral water purifier, which includes the above-mentioned filter element, or the mineral water purifier includes the above-mentioned filter cartridge. The first filter body 110 and the second filter body 120 are arranged adjacently or nested. An isolation component 192 is provided between the first filter body 110 and the second filter body 120 so that the leaching of minerals in the second filter body 120 and the first filter body 110 does not affect each other. When the first filter body 110 and the second filter body 120 are connected in series, the water flow has a certain pressure when flowing, and can pass through the first filter body 110, the isolation component 192, and the second filter body 120 in sequence. When the water flow stops, the water on the second filter body 120 side cannot pass through the isolation component 192 to the first filter body 120 side, and the water on the first filter body 110 side cannot pass through the isolation component 192 to the second filter body 120 side. That is, in the soaking state, the water path is equivalent to being disconnected, so as to avoid the mixing of soaking water, which would affect the dissolution of minerals in the second filter body 120 and the first filter body 110, resulting in excessive or insufficient dissolution, so as to ensure that the mineral concentration in the effluent is within the standard range.

[0065] In specific applications, the shell 210 can be cylindrical, with the interior being a filter element chamber for installing the aforementioned mineralized filter element. The first filter body 110 and the second filter body 120 are arranged vertically or radially along the axial direction of the shell 210.

[0066] In practical applications, the above-mentioned filter element (mineralized filter element) can be connected in parallel with a non-mineralized filter element or a pure water circuit. The parallel water circuit can be equipped with a flow valve to adjust the mineral content / pH value of the effluent within a set range.

[0067] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions or improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A filter cartridge, characterized by, The filter core comprises a filter core body, which comprises at least a first filter body and a second filter body; The first filter body and the second filter body are arranged adjacently or in a nested manner, and a separation component is arranged between the first filter body and the second filter body; the separation component is a one-way water permeable component for allowing water flow to pass in one direction, and the first filter body and the second filter body are arranged on two sides of the one-way water permeable component; or the separation component is a pressure water permeable component for allowing water flow to pass when the water flow reaches a preset pressure, and the first filter body and the second filter body are arranged on two sides of the pressure water permeable component.

2. The filter cartridge of claim 1 wherein, The one-way water permeable component is provided with a plurality of one-way water permeable structures, and the one-way water permeable structures are duckbill valves.

3. The filter cartridge of claim 1 wherein, The separation component is a pressure water permeable component for allowing water flow to pass when the water flow reaches a preset pressure, and the first filter body and the second filter body are arranged on two sides of the pressure water permeable component.

4. The filter cartridge of any one of claims 1 to 3, wherein, The separation component is a non-porous partition plate, and the first filter body and the second filter body are arranged on two sides of the partition plate. Or, the separation component is a non-porous center tube, and the first filter body and the second filter body are arranged on two sides of the center tube. The side wall of the center tube is provided with water permeable holes for allowing water flow to flow through the first filter body and the second filter body in sequence or through the second filter body and the first filter body in sequence along the radial direction of the filter core body. Or, the side wall of the center tube is a non-porous water blocking side wall, and water flow flows through the first filter body and the second filter body in sequence along the axial direction of the filter core body.

5. The filter cartridge of any one of claims 1 to 3, wherein, The first filter body and the second filter body are arranged in an up-down manner or a left-right adjacent manner. Or, the first filter body is in a cylindrical shape, the second filter body is in a cylindrical shape or a columnar shape, the first filter body is sleeved on the outside of the second filter body, and the separation component is in a tubular shape and arranged between the first filter body and the second filter body.

6. The filter cartridge of any one of claims 1 to 3, wherein, The second filter body has an anti-mineralization filter material that can inhibit the precipitation of minerals from the mineralization filter material in the first filter body.

7. The filter cartridge of any one of claims 1 to 3, wherein, The first filter body is a metal mineralization filter material, and the second filter body is an alkaline filter material. Or, the first filter body is an alkaline mineralization filter material, and the second filter body is a zinc-containing filter material.

8. The filter cartridge of any one of claims 1 to 3, wherein, The first filter body and the second filter body have a base material, and the base material is a carbon rod filter core, a ceramic filter core, or a carbon fiber.

9. A filter cartridge characterized by, The filter cartridge comprises a cartridge shell and a filter core as claimed in any one of claims 1 to 8, and the filter core is arranged in the cartridge shell. The cartridge shell is provided with a series water path structure for allowing water to flow through the first filter body and the second filter body in sequence. Or, the cartridge shell is provided with a series water path structure for allowing water to flow through the second filter body and the first filter body in sequence. Or, the cartridge shell is provided with a parallel water path structure for allowing water to flow through the first filter body and the second filter body respectively.

10. A mineral water purifier, characterized by, The mineral spring water purifier comprises a filter core as claimed in any one of claims 1 to 8, or a filter cartridge as claimed in claim 9.

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