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 at least comprises a first filter body and a second filter body, the filter element further comprises a first filter shell, the first filter shell is provided with a first filter shell inner cavity, a first filter shell water inlet and a first filter shell water outlet, and the first filter shell water inlet and the first filter shell water outlet are both communicated with the first filter shell inner cavity; the first filter body is arranged in the first filter shell inner cavity, and a first filter shell inner flow channel passing through the first filter body is formed between the first filter shell water inlet and the first filter shell water outlet; and the second filter body is arranged outside the inner cavity of the first filter shell. The first filter body is relatively isolated from the second filter body, so that the second filter body is prevented from influencing the first filter body, and excessive dissolution or insufficient dissolution caused by influence on dissolution of minerals in the first filter body is prevented, so that the concentration of the minerals in the outlet water can be ensured to be within a standard range, and the high-end requirement of a user on drinking water beneficial to health is met.

Description

TECHNICAL FIELD

[0001] The utility model relates to mineralization water purification technical field especially relates to a filter core, filter drum and mineral spring water purifier. BACKGROUND

[0002] The conventional domestic water purification equipment mainly adopts the conventional filter core through activated carbon adsorption and reverse osmosis filtration to obtain pure water for direct drinking, which is the most common filtering mode of the domestic water purification equipment on the market at present. Based on the working mechanism of reverse osmosis, all other substances except water molecules are intercepted and filtered, that is, the reverse osmosis filtering mode filters out the mineral substance components beneficial to human health in water while removing the pollutants in water, and long-term drinking of such water is not conducive to health, and the high-end demand of people for the water purification equipment beneficial to health cannot be met. SUMMARY

[0003] To solve the problem of mineral content of drinking water, the utility model provides a filter core, filter drum and mineral spring water purifier, which is beneficial to meet the high-end demand of people for the water purification equipment beneficial to health.

[0004] The utility model provides a filter core, including first filter body and second filter body, first filter body or / and second filter body is mineralization filter body,

[0005] The filter core further includes a first filter shell, the first filter shell has a first filter shell inner cavity, a first filter shell water inlet and a first filter shell water outlet, the first filter shell water inlet and the first filter shell water outlet are both communicated with the first filter shell inner cavity, the first filter body is arranged in the first filter shell inner cavity, and a first filter shell inner flow channel passing through the first filter body is formed between the first filter shell water inlet and the first filter shell water outlet;The second filter body is arranged outside the first filter shell inner cavity.

[0006] Optionally, the second filter body is blocked at the first filter shell water inlet or / and the first filter shell water outlet.

[0007] Optionally, the first filter shell water inlet and the first filter shell water outlet are arranged on the same side or different sides of the first filter shell.

[0008] The second filter body is sleeved on the first filter shell, or the second filter body is provided with one and arranged on one side of the first filter shell, or the second filter body is provided with two and arranged on two sides of the first filter shell.

[0009] Optionally, the first filter shell water inlet and the first filter shell water outlet are arranged on the first filter shell.

[0010] The second filter is connected to the first filter shell, and the second filter separates the first filter shell water inlet and the first filter shell water outlet.

[0011] Optionally, the first filter has a mineralization filter capable of precipitating minerals, and the second filter has a promoting filter for promoting the mineralization filter to precipitate minerals.

[0012] Alternatively, the first filter has a mineralization filter capable of precipitating minerals, and the second filter has an anti-interference filter capable of inhibiting the mineralization filter from precipitating minerals.

[0013] Alternatively, the first filter has a mineralization filter for adjusting the pH value of water, and the second filter has a neutralization filter for neutralizing the pH value of water.

[0014] Alternatively, the first filter has a first mineralization filter capable of precipitating a first mineral, and the second filter has a second mineralization filter capable of precipitating a second mineral.

[0015] The utility model also provides a filter cartridge, including the shell, still include above-mentioned filter core, the filter core sets up in the shell.

[0016] Optionally, the first filter shell is connected to the cartridge shell, and the second filter is connected to the cartridge shell or / and the first filter shell.

[0017] The filter cartridge is provided with a series water path, which passes through the first filter and the second filter in sequence or passes through the second filter and the first filter in sequence; or the filter cartridge is provided with a parallel water path, which passes through the first filter and the second filter in sequence.

[0018] Optionally, the filter core further includes a second filter shell, the second filter shell has a second filter shell inner cavity, a second filter shell water inlet and a second filter shell water outlet, the second filter shell water inlet and the second filter shell water outlet are both communicated with the second filter shell inner cavity, the second filter is arranged in the second filter shell inner cavity, and a second filter shell inner flow channel passing through the second filter is formed between the second filter shell water inlet and the second filter shell water outlet.

[0019] Optionally, the second filter shell water inlet is communicated with the first filter shell water outlet, and the second filter shell inner flow channel is connected in series with the first filter shell inner flow channel.

[0020] Alternatively, the second filter shell water inlet is communicated with the first filter shell water inlet, the second filter shell water outlet is communicated with the first filter shell water outlet, and the second filter shell inner flow channel is connected in parallel with the first filter shell inner flow channel.

[0021] The utility model also provides a kind of mineral water purifier, the mineral water purifier includes the filter core described above, alternatively, the mineral water purifier includes the filter cartridge described above.

[0022] The filter cartridge, the filter cartridge and the mineral water purifier provided by the utility model, the filter cartridge is mineralization filter core, by setting at least two different first filter body and second filter body in mineralization filter core, first filter body is relatively isolated from second filter body, avoid second filter body to influence first filter body, prevent the dissolution of mineral in first filter body from being influenced and excessive dissolution or insufficient dissolution, to facilitate guarantee that the mineral concentration in effluent can be in standard range, beneficial to meet the high-end demand of user to drinking water to meet beneficial health. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is a kind of filter core (the first structure) of the cross section view provided by the utility model embodiment;

[0024] Figure 2 It is a kind of filter core (the second structure) of the cross section view provided by the utility model embodiment;

[0025] Figure 3 It is a kind of filter core (the third structure) of the cross section view provided by the utility model embodiment;

[0026] Figure 4 It is the water route schematic diagram of a kind of filter cartridge (parallel water route) provided by the utility model embodiment;

[0027] Figure 5 It is the water route schematic diagram of a kind of filter cartridge (series water route) provided by the utility model embodiment;

[0028] Figure 6 It is the three-dimensional cross section schematic diagram of a kind of filter cartridge provided by the utility model embodiment. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical scheme and advantages of the utility model more clear and obvious, the utility model is further explained in detail below in combination with drawings and embodiments.It should be understood that the specific embodiments described here are only used to explain the utility model, and are not used to limit the utility model.

[0030] It should be noted that the terms "set", "connect" should be understood broadly, for example, can be directly set, connect, can also be indirectly set, connected through centering component, centering structure.

[0031] In addition, in the embodiments of the utility model, if there are terms indicating the orientation or position relationship such as "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., the orientation or position relationship shown based on the drawings or the conventional placement state or use state is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the structure, feature, device or element indicated must have a specific orientation or position relationship, nor must be constructed and operated in a specific orientation, so it cannot be understood as a limitation on the utility model. In the description of the utility model, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0032] In the specific technical features and embodiments described in the specific embodiments, any suitable combination can be combined without contradiction, for example, different specific technical features / embodiments can form different embodiments, in order to avoid unnecessary repetition, various possible combinations of each specific technical feature / embodiment in the utility model are not described again.

[0033] The utility model provides a kind of filter element, as shown in Figures 1 to 4 It at least includes first filter body 110 and second filter body 120, the first filter body 110, second filter body 120 is separately provided, and the first filter body 110 or / and second filter body 120 is mineralization filter body.The filter element further includes first filter shell 180, the first filter shell 180 has first filter shell inner cavity, first filter shell water inlet 181 and first filter shell water outlet 182, the first filter shell water inlet 181 and first filter shell water outlet 182 are both communicated in the first filter shell inner cavity, the first filter body 110 is arranged in the first filter shell inner cavity, and the first filter shell water inlet 181 and first filter shell water outlet 182 form the first filter shell 180 inner flow passage passing through the first filter body 110;The second filter body 120 is arranged outside the first filter shell inner cavity.In this way, the first filter body 110 is relatively isolated from the second filter body 120, to avoid the influence of the second filter body 120 on the first filter body 110, to prevent the excessive dissolution or insufficient dissolution of mineral matter in the first filter body 110 from being affected, so as to facilitate to ensure that the mineral matter concentration in the outlet water can be within the standard range, and the user experience is good.

[0034] As shown in Figure 1 The second filter body 120 is blocked in the first filter shell water inlet 181 or / and the first filter shell water outlet 182, so that the first filter body 110 and the second filter body 120 form a series structure.

[0035] In specific application, the first filter shell water inlet 181 and the first filter shell water outlet 182 can be arranged on the same side or different sides of the first filter shell 180.

[0036] Alternatively, the second filter 120 is sleeved on the outer periphery of the first filter shell 180, or the second filter 120 is provided with one and arranged on one side of the first filter shell 180 (as shown in Figure 1 Or Figure 2 Alternatively, the second filter 120 is provided with two and arranged on two sides of the first filter shell 180 (as shown in Figure 3

[0037] In specific application, the first filter shell water inlet 181 and the first filter shell water outlet 182 are arranged on the same side of the first filter shell 180.

[0038] The second filter 120 is connected to the first filter shell 180 and located between the first filter shell water inlet 181 and the first filter shell water outlet 182. The second filter 120 separates the first filter shell water inlet 181 and the first filter shell water outlet 182. The first filter 110 and the second filter 120 form a parallel structure.

[0039] By arranging two different first filters 110 and second filters 120, different use requirements can be met. The filter core provided in the embodiment is a mineralization filter core. By arranging at least two different first filters 110 and second filters 120 in the mineralization filter core, the water body contains mineral components beneficial to human health, which is conducive to meeting the high-end demand of users for drinking water to meet the beneficial health. In specific application, the first filter 110 and the second filter 120 can also be respectively packaged in different filter shells and arranged in series or parallel. The first filter 110 and the second filter 120 can also be packaged in different inner cavities of the same filter shell, and each inner cavity is arranged in series or association,

[0040] In specific application, the mineralization filter core can be used in cooperation with a conventional filter core, that is, the mineralization filter core can be arranged downstream of the filter core. The pure water formed by the filter core passes through the mineralization filter core. The mineralization filter core can dissolve an appropriate amount of minerals in the water body, so that the drinking water for the user has an appropriate amount of minerals, which is beneficial to the health of the user.

[0041] Specifically, each filter can be arranged in series, such as Figure 1 ​As shown, the water flow direction is as an example of the arrow direction in the figure, the water flow sequentially flows through the first filter body 110 and the second filter body 120 along the axial direction, and the first filter body 110 and the second filter body 120 can respectively dissolve different minerals. The first filter body 110 can dissolve zinc elements (the first filter body 110 is a zinc-containing filter body), and the second filter body 120 can be a weak alkaline filter body. When the water flow normally flows through the first filter body 110 and the second filter body 120, the zinc elements can be normally dissolved. Since the water in the filter core cannot be emptied when the water flow stops, the filter core is inevitably in a soaking state. The remaining water in the filter core is the soaking water body. When the filter core is in the soaking state, if the soaking water body is conventional pure water (water filtered by an RO membrane), the amount of zinc elements dissolved in a certain period of time will exceed the safety limit of the national standard, that is, the zinc content of the soaking water body does not meet the drinking standard, which is not conducive to human health.

[0042] In the embodiment, the first filter body 110 is arranged in the first filter shell 180 to avoid excessive dissolution of zinc elements due to sufficient soaking and prevent the zinc content from exceeding the standard.

[0043] Moreover, in the embodiment, the second filter body 120 is arranged as an alkaline filter body to make the soaking water body weakly alkaline, thereby also inhibiting the excessive dissolution of zinc elements in the first filter body 110 and making the zinc concentration in the soaking water body meet the national standard. The zinc elements in the water body can be prevented from exceeding the set range under the soaking condition. The mechanism of inhibiting the dissolution of zinc elements by using alkaline water soaking can make the zinc elements normally dissolved when the water flow is normal (water flow) and overcome the technical difficulty that the zinc-containing filter body easily leads to excessive zinc elements when soaked.

[0044] Specifically, as the first optional combination scheme of the mineralization filter core, the first filter body 110 is a mineralization filter material that can dissolve minerals, and the second filter body 120 is a promoting filter material for promoting the dissolution of minerals by the mineralization filter material. The water path in the filter core can pass through the promoting filter material first and then pass through the mineralization filter material, that is, the water flow can flow through the second filter body 120 first and then flow through the first filter body 110. The minerals in the mineralization filter material are promoted to be dissolved, and the mineral dissolution rate is relatively fast, which can meet the demand of the user when a large amount of water is used, that is, under a large flow rate, the content of the minerals can also meet the national standard or the industry standard, and the situation that the content of the mineralization substance is low due to insufficient dissolution of the minerals is avoided. In specific applications, the promoting filter material can be selectively connected in series with the upstream of the mineralization filter material. The second filter body 120 is an acidic filter material. The second filter body 120 includes a weakly acidic mineral or is a weakly acidic mineral, the first filter body 110 includes a mineral containing rich calcium and magnesium, and the acidic substances dissolved by the second filter body 120 can promote the dissolution of the calcium and magnesium elements of the first filter body 110.

[0045] Alternatively, as a second alternative combination of the mineralization filter element, the first filter body 110 is a mineralization filter material that can dissolve minerals, and the second filter body 120 is an anti-competitive filter material that can inhibit the dissolution of minerals in the mineralization filter material, i.e., the second filter body 120 can dissolve anti-competitive substances for inhibiting the dissolution of minerals in the first filter body 110. In some scenarios, when the filter element is in a soaking state, the dissolution of some minerals may exceed the set standard, and if directly consumed, it is also not conducive to health. This combination sets the anti-competitive filter material, which can inhibit the dissolution of minerals in the mineralization filter material as needed, thereby preventing the content of minerals from exceeding the corresponding safety standards. In this combination, the first filter body 110 and the second filter body 120 fixedly connected along the axial direction can be arranged in the same cavity, and the first filter body 110 can be arranged above the second filter body 120. Due to the gas (stuck gas) in the filter element when the filter element is soaked, the first filter body 110 is not fully soaked, i.e., the liquid level in the filter cartridge can not submerge the first filter body 110, and the dissolution of minerals in the first filter body 110 can be reduced during soaking. In addition, the second filter body 120 can be fully soaked under the liquid level, and the dissolution of anti-competitive substances can be sufficient to inhibit the dissolution of minerals in the first filter body 110. In specific applications, the first filter body 110 is a weak alkaline filter material, and the second filter body 120 is a strong alkaline filter material. The strength of alkalinity between the weak alkaline filter material and the strong alkaline filter material can be a relative concept, i.e., the alkalinity of the second filter body 120 is higher than that of the first filter body 110. In specific applications, the strong alkaline filter material (made of strong alkaline material) can directly release (dissolve) OH - (reaction a: Mg(OH)2=Mg 2+ +2OH - ) in water to increase the alkalinity of water, while the weak alkaline filter material (made of weak alkaline material) such as calcite, which has a chemical composition of CaCO3, needs to release CO3 2- (reaction b: CaCO3=Ca 2+ +CO3 2- ) in water first, and then CO3 2- undergoes a hydrolysis reaction with H2O to generate OH - (reaction c: ). The strong alkaline material only needs one step reaction to obtain OH - , while the weak alkaline material needs two steps reaction to obtain OH - , and the rate of reaction c is much lower than that of reaction a, so the strong alkaline material preferentially releases OH - . Reaction c is a reversible reaction, and when reaction a preferentially occurs, the chemical equilibrium of reaction c moves to the left, so the strong alkaline material can inhibit the OH -Release. Alternatively, in specific applications, the first filter body 110 is a zinc-mineralized filter material or a copper-mineralized filter material, that is, the first filter body 110 is a zinc- and / or copper-containing mineralized filter material, and the second filter body 120 is an alkaline filter material; the alkaline substances dissolved in the second filter body 120 (alkaline filter material) can inhibit the dissolution of zinc and copper elements in the first filter body 110. Specifically, the dissolution reaction of zinc element (zinc-containing filter material, such as smithsonite) in water is: ZnCO3=Zn 2+ +CO3 2- Under normal conditions (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; when the water quality remains unchanged, Zn 2+ and CO3 2- It is dissolved simultaneously, releasing CO3 2- By controlling the concentration of Zn to the lowest possible level, 2+ The saturated dissolution concentration is controlled at the lowest level; from H2CO3-HCO3 - -CO3 2- The equilibrium diagram in water shows that when the pH value (approximately) is 8.3, CO3... 2- The concentration of Zn is at its lowest level, at which point the concentration of Zn is at its lowest. 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 soaked in 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.

[0046] Alternatively, the first filter element 110 and the second filter element 120 can be connected in parallel, such as... Figures 2 to 4 As shown, as a third optional combination of mineralized filter cartridges, 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 2 , Figure 3 As shown, the first filter element 110 and the second filter element 120 can be connected in parallel in the water circuit. By adjusting the water flow of the first filter element 110 and the second filter element 120 respectively, the pH value of the overall effluent can be stabilized within a set pH range (generally 7.0 to 9.0). Figure 4 As shown, the filter element may also include a third filter element 130, and the first filter element 110, the second filter element 120 and the third filter element 130 may be connected in parallel in the water circuit.

[0047] In practical applications, as a fourth optional combination scheme for mineralized filter cartridges, the first filter body 110 is a first mineralized filter material capable of dissolving a first mineral, and the second filter body 120 is a second mineralized filter material capable of dissolving a second mineral. The first and second mineralized filter materials are used in combination to provide different minerals. Of course, a third or fourth mineralized filter body can also be added to form a filter cartridge structure richer in minerals. This combination can create a filter cartridge rich in minerals, and through the combination and matching of various filter bodies, it can better meet users' high-end needs for healthy drinking water.

[0048] In specific applications, as the fifth optional combination scheme of mineralized filter cartridge, 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, so that the functions of mineralizing water quality and adsorbing and removing odors can be realized in the same filter cartridge.

[0049] In practical applications, as a sixth optional combination scheme for mineralizing filter elements, the first filter element 110 and the second filter element 120 can be connected in series, such as... Figure 6 As shown, 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, However, metasilicic acid and orthosilicic acid (H4SiO4) exist in a dynamic equilibrium. Orthosilicic acid has strong acidity and can exist stably in acidic environments; therefore, it is less stable in alkaline environments. The balance shifts to the left, meaning the content of orthosilicic acid decreases and the concentration of metasilicic acid increases. However, excessive alkalinity will inhibit the hydrolysis of silicate ions, thereby 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 in sequence, the dissolution of metasilicic acid can be promoted, so that the content of metasilicic acid reaches the set standard.

[0050] In specific applications, the first filter body 110 is a mineralized filter material containing calcium and / or magnesium, and the second filter body 120 is an alkaline filter material. In specific applications, the second filter body 120 contains alkaline minerals with different contents, and the first filter body 110 contains minerals with different contents of calcium and magnesium. The first water flow channel flows through the first alkaline minerals of the second filter body 120 and the first filter body 110, and the second water flow channel flows through the second alkaline minerals of the second filter body 120 and the first filter body 110. The concentration of different mineralized elements dissolved can be adjusted by different flow rates in the first water flow channel and the second water flow channel.

[0051] In specific application, the first filter 110 comprises at least one of brucite and sepiolite; the second filter 120 comprises at least one of calcite and brucite.

[0052] Alternatively, the first filter 110 comprises at least one of smithsonite and malachite; the second filter 120 comprises at least one of brucite, sepiolite and calcite.

[0053] Alternatively, the first filter 110 comprises at least one of hornblende, magnesite and dolomite; the second filter 120 comprises at least one of brucite, sepiolite and calcite.

[0054] Alternatively, the first filter 110 comprises at least one of hornblende, magnesite and dolomite; the second filter 120 comprises at least one of iron ore and silicate ore.

[0055] Specifically, the first filter 110 and the second filter 120 are in the shape of a cylinder or a column; the first filter 110 and the second filter 120 can be in the shape of a cylinder, a polygonal column, a circular truncated cone, etc.

[0056] Specifically, the first filter 110 and the second filter 120 are in the shape of a block or a column, etc. In specific application, the first filter 110 and the second filter 120 comprise a base body, which can be a carbon rod filter or a ceramic filter, etc.; the mineralization filter material, the promotion filter material, the antagonistic filter material or the neutralization filter material is dispersed in the base body or attached to the surface of the base body. Alternatively, the mineralization filter material, the promotion filter material, the antagonistic filter material or the neutralization filter material can also be arranged inside the base body.

[0057] Specifically, the base material of the first filter 110 can be any one of a carbon rod filter, a ceramic filter and carbon particles; the base material of the second filter 120 can be any one of a carbon rod filter, a ceramic filter and carbon particles.

[0058] Specifically, the mineralization filter material, the promotion filter material, the antagonistic filter material or the neutralization filter material is dispersed in the base material or attached to the surface of the base material.

[0059] The embodiment also provides a design method of a filter core, which is used for designing the filter core, and the first filter body 110 or / and the second filter body 120 is a mineralization filter body. The filter core further comprises a first filter shell 180, the first filter shell 180 has a first filter shell inner cavity, a first filter shell water inlet 181 and a first filter shell water outlet 182, the first filter shell water inlet 181 and the first filter shell water outlet 182 are both communicated with the first filter shell inner cavity, the first filter body 110 is arranged in the first filter shell inner cavity, and a first filter shell 180 inner flow channel passing through the first filter body 110 is formed between the first filter shell water inlet 181 and the first filter shell water outlet 182; and the second filter body 120 is arranged outside the first filter shell inner cavity.

[0060] As the first design scheme, the first filter body 110 is designed to be capable of inhibiting the dissolution of minerals in the second filter body 120, and specifically, the first filter body 110 is designed to be a strong alkaline filter body, and the second filter body 120 is designed to be a weak alkaline filter body. 2- The CO3 2- is reversibly hydrolyzed with H2O to generate OH - . The strong alkaline filter body can directly release (dissolve) OH - in water, and the strong alkaline material in the strong alkaline filter body is taken as Mg(OH)2, reaction a: Mg(OH)2=Mg 2+ +2OH - , which increases the alkalinity of water, and the weak alkaline filter body is taken as CaCO3, which needs to release CO3 2- in water first, reaction b: CaCO3=Ca 2+ +CO3 2- , and then the CO3 2- is hydrolyzed with H2O to generate OH - , reaction c: The strong alkaline filter body only needs one step to obtain OH - , and the weak alkaline filter body needs two steps to obtain OH - , and the rate of reaction c is much lower than that of reaction a, so the strong alkaline filter body preferentially releases OH - . Reaction c is a reversible reaction, when reaction a preferentially occurs, the chemical equilibrium of reaction c moves to the left, so the strong alkaline filter body can inhibit the release of OH - of the weak alkaline filter body. The strong alkaline filter body and the weak alkaline filter body are fixed to form an axially arranged structure, the strong alkaline filter body and the weak alkaline filter body can be assembled in the same filter shell, and the inhibition of the strong alkaline filter body to the weak alkaline filter body can be utilized, in the service life of the whole filter core, the strong alkaline material releases OH - in the early stage, and releases OH -The two can work together to greatly extend the lifespan of the filter element, thus achieving a longer filter element lifespan.

[0061] This utility model embodiment also provides a filter cartridge, such as Figures 1 to 6 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.

[0062] like Figure 6 The filter cartridge shown is an example with two filter elements (first filter element 110 and second filter element 120). Specifically, the casing 210 may be provided with a series water passage structure for water to flow sequentially through the first filter element 110 and the second filter element 120. The series water passage structure allows water to flow sequentially through the first filter element 110 and the second filter element 120 axially. In specific applications, the series water passage structure can enter the filter cartridge from the bottom of the casing 210, flow upward along the inner side of the filter cartridge, and flow sequentially through the first filter element 110 and the second filter element 120 axially before exiting from the filter cartridge outlet to the filter cartridge outlet pipe 320.

[0063] 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, and flow out from the outlet of the filter cylinder after passing sequentially through the second filter body 120 and the first filter body 110 in the axial direction.

[0064] Or, such as Figure 4 As shown, the shell 210 is equipped with a parallel water circuit structure for supplying water to flow through the first filter body 110 and the second filter body 120 respectively. The parallel water circuit structure can have two branch water circuits that flow radially through the first filter body 110 and the second filter body 120 to meet different usage requirements. In specific applications, each branch water circuit can be equipped with a control valve or flow valve. The filter cartridge can be connected to a water circuit plate, which has control water circuits that are connected to each branch water circuit. The control water circuit control valves or flow valves control the amount of water flowing through each filter body (first filter body 110 and second filter body 120) to obtain the required drinking water.

[0065] This utility model also provides a mineral water purifier, which includes the aforementioned filter element, or the aforementioned filter cartridge. By setting at least two different first filter elements 110 and second filter elements 120 in the filter element, different usage needs 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 needs for drinking water that is beneficial to health.

[0066] In a specific application, the cylinder shell 210 can be in a (circular) cylindrical shape, and its interior is a filter core chamber for mounting the above-mentioned mineralization filter core. The first filter body 110 and the second filter body 120 are arranged in an axial direction of the cylinder shell 210.

[0067] As a first alternative application scheme, the first filter body 110 can be a strong alkaline filter body, and the second filter body 120 can be a weak alkaline filter body. The first filter body 110 and the second filter body 120 are connected in a series waterway, and the inhibitory effect of the strong alkaline material on the weak alkaline material can be utilized. In the service life of the entire filter core, the strong alkaline filter body releases OH - in the early stage, and releases OH - with the weak alkaline filter body in the middle and late stages. The two can work together to release OH - above the set range in the entire life span, greatly improving the service life of the filter core, thereby realizing long service life of the filter core.

[0068] As a second alternative application scheme, the first filter body 110 can be a zinc-containing filter body, and the second filter body 120 can be an alkaline filter body (preferably a weak alkaline filter body). The first filter body 110 and the second filter body 120 are connected in a series waterway, and the series waterway first flows through the zinc-containing filter body and then flows through the alkaline filter body. The inhibitory effect of the alkaline material on zinc can be utilized to prevent excessive dissolution of zinc. The dissolution reaction of zinc (zinc-containing filter body, such as zincite) in water is: ZnCO3 = Zn 2+ + CO3 2- ; under general conditions (pure water obtained after RO membrane filtration), the saturation solubility of Zn 2+ in water when soaked is up to 6.0 mg / L, far exceeding the limit value of 1.0 mg / L of the national standard; when the water quality remains unchanged, Zn 2+ and CO3 2- are dissolved synchronously, and the concentration of CO3 2- is controlled at the lowest level, so that the saturation dissolution concentration of Zn 2+ is also controlled at the lowest level; from the equilibrium diagram of H2CO3-HCO3 - -CO3 2- in water, when the pH value is about 8.3, the concentration of CO3 2- is at the lowest level, and at this time, the concentration of Zn 2+ in the soaked water is also at the lowest level, which is theoretically calculated as 0.36 mg / L, meeting the standard limit value; that is, by adjusting the pH value of the water soaked in the zinc-containing filter body to about 8.3, the concentration of Zn 2+ can be accurately controlled between 0.2-1.0 mg / L. Based on similar principles, the first filter body 110 can be a copper-containing filter body, and the second filter body 120 can be an alkaline filter body (preferably a weak alkaline filter body), and the dissolution of copper can also be controlled within a set range.

[0069] As the third optional application scheme, the first filter body 110 includes different content of alkaline ore, the second filter body 120 contains different content of calcium and magnesium ore, the first water flow channel and the second water flow channel are connected in parallel, and the concentration of different mineralized elements dissolved is adjusted by controlling the different flow rates of water flow in the first water flow channel and the second water flow channel.

[0070] In specific applications, the mineral spring water purifier can be provided with one or at least two filter cartridges described above. When the filter cartridges are provided with two or more than two, at least two filter cartridges can be connected in series or in parallel. In specific applications, the filter cartridge (mineralization filter cartridge) described above can be connected in parallel with a non-mineralization filter cartridge or a pure water waterway, and the parallel waterway can be provided with a flow valve to adjust the mineral content / PH value of the outlet water within a set range.

[0071] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. Any modification, equivalent replacement or improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A filter cartridge, characterized by, The filter core comprises a first filter body and a second filter body, wherein the first filter body or / and the second filter body is a mineralization filter body; The filter core further comprises a first filter shell, wherein the first filter shell has a first filter shell inner cavity, a first filter shell water inlet and a first filter shell water outlet, the first filter shell water inlet and the first filter shell water outlet are both communicated with the first filter shell inner cavity, the first filter body is arranged in the first filter shell inner cavity, and a first filter shell inner flow channel passing through the first filter body is formed between the first filter shell water inlet and the first filter shell water outlet; and the second filter body is arranged outside the first filter shell inner cavity.

2. The filter cartridge of claim 1 wherein, The second filter body is sealed to the first filter shell water inlet or / and the first filter shell water outlet.

3. The filter cartridge of claim 2 wherein, The first filter shell water inlet and the first filter shell water outlet are arranged on the same side or different sides of the first filter shell. The second filter body is sleeved on the first filter shell, or the second filter body is provided with one and arranged on one side of the first filter shell, or the second filter body is provided with two and arranged on two sides of the first filter shell.

4. The filter cartridge of claim 1 wherein, The first filter shell water inlet and the first filter shell water outlet are arranged on the same side of the first filter shell. The second filter body is connected to the first filter shell, and the second filter body separates the first filter shell water inlet and the first filter shell water outlet.

5. The filter cartridge of any one of claims 1 to 4, wherein, The first filter body is a mineralization filter material capable of precipitating minerals, and the second filter body is a promoting filter material for promoting the mineralization filter material to precipitate minerals; Or, the first filter body is a mineralization filter material capable of precipitating minerals, and the second filter body is an anti-interference filter material capable of inhibiting the mineralization filter material from precipitating minerals; Or, the first filter body is a mineralization filter material for adjusting the PH value of water, and the second filter body is a neutralization filter material for neutralizing the PH value of water; Or, the first filter body is a first mineralization filter material capable of precipitating a first mineral, and the second filter body is a second mineralization filter material capable of precipitating a second mineral.

6. A filter cartridge characterized by, The filter cartridge comprises a shell and the filter core as claimed in any one of claims 1 to 5, wherein the filter core is arranged in the shell.

7. The filter cartridge of claim 6 wherein, The first filter shell is connected to the shell, and the second filter body is connected to the shell or / and the first filter shell. The filter cartridge is provided with a serial water channel passing through the first filter body and the second filter body in sequence or passing through the second filter body and the first filter body in sequence; or the filter cartridge is provided with a parallel water channel passing through the first filter body and the second filter body respectively.

8. The filter cartridge of claim 6 or 7, wherein, The filter core further comprises a second filter shell, wherein the second filter shell has a second filter shell inner cavity, a second filter shell water inlet and a second filter shell water outlet, the second filter shell water inlet and the second filter shell water outlet are both communicated with the second filter shell inner cavity, the second filter body is arranged in the second filter shell inner cavity, and a second filter shell inner flow channel passing through the second filter body is formed between the second filter shell water inlet and the second filter shell water outlet.

9. The filter cartridge of claim 8 wherein, The second filter shell water inlet is communicated with the first filter shell water outlet, and the second filter shell inner flow channel is connected in series with the first filter shell inner flow channel; Or, the second filter shell water inlet is communicated with the first filter shell water inlet, the second filter shell water outlet is communicated with the first filter shell water outlet, and the second filter shell inner flow channel is connected in parallel with the first filter shell inner flow channel.

10. A mineral water purifier, characterized by, The mineral spring water purifier comprises the filter core according to any one of claims 1 to 5, or the mineral spring water purifier comprises the filter cartridge according to any one of claims 6 to 8.

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