Filter element assembly and mineral spring water purifier

Abstract

The invention 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 metasilicic acid filter material and an alkaline filter material, an inner water path is arranged in the filter element assembly, the metasilicic acid filter material and the alkaline filter material are arranged in a sleeved mode, and fluid in the inner water path sequentially flows through the alkaline filter material and the metasilicic acid filter material. Compared with the prior art, the structure provided by the invention has the advantages that the metasilicic acid filter material and the alkaline filter material are arranged in a sleeving manner, and the inner water path which firstly flows through the alkaline filter material and then flows through the metasilicic acid filter material is formed, so that the dissolution of metasilicic acid in the metasilicic acid filter material can be promoted by utilizing alkaline substances dissolved into water from the alkaline filter material; therefore, the probability of low metasilicic acid content in the metasilicic acid mineralized water can be reduced.

Description

Technical Field

[0001] The present application relates to the technical field of water treatment equipment, and in particular to a filter element assembly and a mineral water purifier. Background Art

[0002] With rising productivity, people's demands for improved quality of life and greater convenience are also increasing. Mineralized water, a type of water containing mineral salts, is rich in essential macro and trace elements, making it a popular drinking water option. At the same time, production and experimentation also require mineralized water containing specific mineral salts, such as metasilicic acid mineralized water.

[0003] Currently, there are two common ways to prepare mineralized water. The first is to manually mix soluble substances containing metasilicic acid with water to form mineralized water of appropriate concentration. However, this method is very cumbersome, requires a certain level of chemical knowledge, and is inefficient. The second method is to add minerals that can dissolve metasilicic acid into a container filled with water, such as a drinking fountain or water purifier. The metasilicic acid in the ore can dissolve into the water in the container, turning the water into metasilicic acid mineralized water. However, it is difficult to effectively control the metasilicic acid content in the metasilicic acid mineralized water prepared using this method. When the metasilicic acid content is insufficient, the metasilicic acid mineralized water cannot meet user needs. Summary of the Invention

[0004] In view of this, the present application provides a method for reducing the probability of low metasilicic acid content in metasilicic acid mineralized water.

[0005] In order to solve the above technical problems, a technical solution adopted in this application is: providing a filter element assembly, including a metasilicic acid filter material and an alkaline filter material, the filter element assembly is provided with an internal water channel, the metasilicic acid filter material and the alkaline filter material are nested, and the fluid in the internal water channel flows through the alkaline filter material and the metasilicic acid filter material in sequence.

[0006] In a specific embodiment, the inner waterway has a first waterway and a second waterway, the inner waterway has an outer cavity and an inner cavity, the second waterway, the outer cavity, the inner cavity and the first waterway are connected in sequence, the outer cavity is arranged at the outer periphery of the inner cavity, one of the metasilicic acid filter material and the alkaline filter material is arranged in the outer cavity, and the other of the metasilicic acid filter material and the alkaline filter material is arranged in the inner cavity; the filter element assembly includes an outer sleeve and an inner sleeve, the outer sleeve is sleeved on the outer periphery of the inner sleeve, the outer cavity is arranged between the inner sleeve and the outer sleeve, the inner cavity is arranged on the side of the inner sleeve away from the outer cavity, the inner sleeve has a first opening and a second opening, the first opening connects the outer cavity and the inner cavity, and the second opening connects the inner cavity and the second waterway.

[0007] In a specific embodiment, the first water channel has a third opening, the second water channel has a fourth opening, the third opening and the fourth opening are arranged at the lower end of the outer sleeve, the first opening is arranged at the upper end of the inner sleeve, the second opening is arranged at the lower end of the inner sleeve, and the second opening is connected to the fourth opening.

[0008] In a specific embodiment, the outer sleeve and the inner sleeve are arranged along the same axial direction, the metasilicic acid filter material and the alkaline filter material are both cylindrical blocks, the outer sleeve, the metasilicic acid filter material, the inner sleeve, and the alkaline filter material are sequentially arranged from the outside to the inside, and the fluid in the second waterway flows through the alkaline filter material and the metasilicic acid filter material in sequence to enter the first waterway; or, the outer sleeve, the alkaline filter material, the inner sleeve, and the metasilicic acid filter material are sequentially arranged from the outside to the inside, and the fluid in the first waterway flows through the alkaline filter material and the metasilicic acid filter material in sequence to enter the second waterway.

[0009] In a specific embodiment, the inner sleeve includes a limiting protrusion, which is arranged adjacent to the first opening and protrudes perpendicularly to the axial direction into the outer cavity. The limiting protrusion abuts and limits the metasilicic acid filter material or the alkaline filter material in the outer cavity.

[0010] In a specific embodiment, the inner water channel has a first water channel, a second water channel and a central channel, the first water channel has a third opening, the second water channel has a fourth opening, one end of the central channel is blocked, and the other end of the central channel is connected to the fourth opening, the filter element assembly includes an outer sleeve, and the third opening and the fourth opening are arranged in the outer sleeve; wherein, the central channel is arranged in the alkaline filter material, or, the central channel is arranged in the metasilicic acid filter material.

[0011] In a specific embodiment, the filter element assembly further includes an upper end cover and a lower end cover, the metasilicic acid filter material has a first upper end face and a first lower end face arranged opposite to each other, and a first outer peripheral surface and a first inner peripheral surface connecting the first upper end face and the first lower end face, the alkaline filter material has a second upper end face and a second lower end face arranged opposite to each other, and a second outer peripheral surface and a second inner peripheral surface connecting the second upper end face and the second lower end face; the upper end cover is arranged on the first upper end face and the second upper end face, and blocks one end of the central channel, the lower end cover is provided with a second inlet, the lower end cover is arranged on the first lower end face and the second lower end face, and the second inlet is connected to the central channel and the fourth opening; wherein, when the metasilicic acid filter material is sleeved on the outer periphery of the alkaline filter material, the first inner peripheral surface is adjacent to the second outer peripheral surface, and the second inner peripheral surface is surrounded to form the central channel; or, when the alkaline filter material is sleeved on the outer periphery of the metasilicic acid filter material, the second inner peripheral surface is adjacent to the first outer peripheral surface, and the first inner peripheral surface is surrounded to form the central channel.

[0012] In a specific embodiment, the third opening and the fourth opening are provided at the lower end of the outer sleeve, and the outer sleeve, the metasilicic acid filter material, the alkaline filter material and the central channel are arranged along the same axial direction.

[0013] In a specific embodiment, when the metasilicic acid filter material is sleeved on the periphery of the alkaline filter material, the first inner peripheral surface and the second outer peripheral surface are sintered and fixed; or, when the alkaline filter material is sleeved on the periphery of the metasilicic acid filter material, the first inner peripheral surface and the second outer peripheral surface are sintered and fixed.

[0014] In order to solve the above technical problems, another technical solution adopted in this application is: to provide a mineral water purifier, including an equipment body and a filter element assembly as described in any of the above specific embodiments, and the equipment body is docked with the filter element assembly.

[0015] The beneficial effects of the present application include: utilizing the mutual cooperation of the sheathed metasilicic acid filter material and the alkaline filter material, and forming a water path from the inside to the outside or from the inside to the outside, so that the alkaline filter material and the metasilicic acid filter material are successively arranged in series in the inner water path of the filter element assembly. In the overflow state of the filter element assembly continuously discharging water outward, the alkaline substances in the alkaline filter material can normally dissolve into the overflowing water body. Since the metasilicic acid filter material is arranged downstream of the alkaline filter material, the alkaline substances flow to the metasilicic acid filter material along with the water body, which can promote the metasilicic acid in the metasilicic acid filter material to dissolve into the overflowing water body, thereby increasing the content of metasilicic acid in the metasilicic acid mineralized water output by the filter element assembly in the overflow state.

[0016] And in the immersion state where the filter element assembly stops discharging water outward, the immersion water body in the inner waterway no longer flows through the alkaline filter material first and then through the metasilicic acid filter material. Although the immersion water body no longer has a macroscopic flow trend, the alkaline filter material and the metasilicic acid filter material are actually connected through the immersion water body, so that the alkaline substance can also diffuse in the immersion water body to move toward the metasilicic acid filter material, which can promote the dissolution of metasilicic acid into the immersion water body, thereby increasing the content of metasilicic acid in the metasilicic acid mineralized water output by the filter element assembly in the immersion state. Through the filter element assembly structure provided by the present application, whether in the overflow state or the immersion state, the content of metasilicic acid in the metasilicic acid mineralized water can be effectively increased, and the probability of insufficient metasilicic acid content in the metasilicic acid mineralized water can be reduced, thereby improving the stability and availability of the filter element assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the implementation. Obviously, the drawings described below are some implementation methods of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0018] Figure 1 A schematic diagram of the assembly structure of the filter element assembly provided in this application;

[0019] Figure 2 A schematic diagram of the cross-sectional structure of the first embodiment of the filter element assembly provided in this application with the metasilicic acid filter material removed and the metasilicic acid filter material removed;

[0020] Figure 3 for Figure 2 Schematic diagram of the cross-sectional structure of the middle filter element assembly;

[0021] Figure 4 yes Figure 3 A schematic diagram of the cross-sectional exploded structure of the filter element assembly shown;

[0022] Figure 5 A schematic cross-sectional view of the second embodiment of the filter element assembly provided in this application, with the metasilicic acid filter material removed and the metasilicic acid filter material removed;

[0023] Figure 6 for Figure 5 Schematic diagram of the cross-sectional structure of the middle filter element assembly;

[0024] Figure 7 yes Figure 6 A schematic diagram of the cross-sectional exploded structure of the filter element assembly shown;

[0025] Figure 8 is a schematic cross-sectional view of a third embodiment of a filter element assembly provided in the present application;

[0026] Figure 9It is a schematic cross-sectional structural diagram of the fourth embodiment of the filter element assembly provided in this application.

[0027] Description of reference numerals:

[0028] 1. Filter element assembly; 2. Inner waterway; 21. First waterway; 211. Third opening; 22. Outer cavity; 23. Inner cavity; 24. Second waterway; 241. Fourth opening; 3. Outer sleeve; 4. Inner sleeve; 41. First opening; 42. Second opening; 43. Position limiting protrusion; 5. Upper end cover; 6. Lower end cover; 61. Second inlet; 7. Metasilicic acid filter material; 71. First upper end face; 72. First lower end face; 73. First outer peripheral surface; 74. First inner peripheral surface; 8. Alkaline filter material; 81. Second upper end face; 82. Second lower end face; 83. Second outer peripheral surface; 84. Second inner peripheral surface; 85. Center channel; 9. Packaging cover. DETAILED DESCRIPTION

[0029] In this application, the terms "disposed," "provided with," and "connected" should be interpreted broadly. For example, they can refer to fixed connections, removable connections, or integral structures; mechanical connections or electrical connections; direct connections or indirect connections through an intermediary; or internal communication between two devices, elements, or components. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0030] The terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are 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, be constructed and operate in a specific orientation, and therefore should not be understood as a limitation on this application.

[0031] 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 the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of such features. Throughout the description of this application, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0032] Furthermore, some of the above terms may be used to express other meanings besides indicating a position or location. For example, the term "on" may also be used to indicate a dependency or connection in certain circumstances. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0033] In order to make the purpose, technical solutions and advantages of this application more clearly understood, the following further describes this application in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.

[0034] With rising productivity, people's demands for improved quality of life and greater convenience are also increasing. Mineralized water, a type of water containing mineral salts, is rich in essential macro and trace elements, making it a popular drinking water option. At the same time, production and experimentation also require mineralized water containing specific mineral salts, such as metasilicic acid mineralized water.

[0035] Currently, there are two common ways to prepare mineralized water. The first is to manually mix soluble substances containing metasilicic acid with water to form mineralized water of appropriate concentration. However, this method is very cumbersome, requires a certain level of chemical knowledge, and is inefficient. The second method is to add minerals that can dissolve metasilicic acid into a container filled with water, such as a drinking fountain or water purifier. The metasilicic acid in the ore can dissolve into the water in the container, turning the water into metasilicic acid mineralized water. However, it is difficult to effectively control the metasilicic acid content in the metasilicic acid mineralized water prepared using this method. When the metasilicic acid content is insufficient, the metasilicic acid mineralized water cannot meet user needs.

[0036] In order to improve or solve the above technical problems, the inventors of this application have proposed at least the following embodiments after long-term research.

[0037] See Figures 1 to 9 , Figure 1 This is a schematic diagram of the assembly structure of the filter element assembly provided in this application. Figure 2 This is a schematic diagram of the cross-sectional structure of the first embodiment of the filter element assembly provided in the present application after the metasilicic acid filter material is removed and the metasilicic acid filter material. Figure 3 for Figure 2 Schematic diagram of the cross-sectional structure of the middle filter element assembly. Figure 4 yes Figure 3 Schematic diagram of the cross-sectional exploded structure of the filter element assembly shown. Figure 5 The second embodiment of the filter element assembly provided in this application is a schematic diagram of the cross-sectional structure of the metasilicic acid filter material and the metasilicic acid filter material removed. Figure 6 for Figure 5 Schematic diagram of the cross-sectional structure of the middle filter element assembly. Figure 7 yes Figure 6 Schematic diagram of the cross-sectional exploded structure of the filter element assembly shown. Figure 8 It is a schematic cross-sectional structural diagram of the third embodiment of the filter element assembly provided in this application. Figure 9 It is a schematic cross-sectional structural diagram of the fourth embodiment of the filter element assembly provided in this application.

[0038] The specific embodiment of the present application provides a filter element assembly 1, comprising a metasilicic acid filter material 7 and an alkaline filter material 8. The filter element assembly 1 is provided with an inner waterway 2, wherein the metasilicic acid filter material 7 and the alkaline filter material 8 are nested, and the fluid in the inner waterway 2 flows sequentially through the alkaline filter material 8 and the metasilicic acid filter material 7. The metasilicic acid filter material 7 can dissolve metasilicic acid into the water body, and the alkaline filter material 8 contains an alkaline substance that can promote the dissolution of metasilicic acid by the metasilicic acid filter material 7.

[0039] In the structure provided in this specific embodiment, the nested metasilicic acid filter material 7 and the alkaline filter material 8 cooperate with each other to form a waterway from the inside to the outside or vice versa, so that the alkaline filter material 8 and the metasilicic acid filter material 7 are successively arranged in series in the inner waterway 2 of the filter element assembly 1. When the filter element assembly 1 is in a state of overflow with water continuously flowing outward, the alkaline substances in the alkaline filter material 8 can normally dissolve into the flowing water. Since the metasilicic acid filter material 7 is arranged downstream of the alkaline filter material 8, the alkaline substances flow to the metasilicic acid filter material 7 along with the water, which can promote the dissolution of the metasilicic acid in the metasilicic acid filter material 7 into the flowing water, thereby increasing the content of metasilicic acid in the metasilicic acid mineralized water output by the filter element assembly 1 in the overflow state.

[0040] In the soaking state where the filter element assembly 1 stops discharging water, the soaking water in the inner waterway 2 no longer flows through the alkaline filter material 8 first and then through the metasilicic acid filter material 7. Although the soaking water no longer has a macroscopic flow trend, the alkaline filter material 8 and the metasilicic acid filter material 7 are actually connected through the soaking water, so that the alkaline substance can also diffuse in the soaking water to move toward the metasilicic acid filter material 7, which can promote the dissolution of metasilicic acid into the soaking water, thereby increasing the content of metasilicic acid in the metasilicic acid mineralized water output by the filter element assembly 1 in the soaking state.

[0041] The filter element assembly 1 structure provided in the present application can effectively increase the content of metasilicic acid in metasilicic acid mineralized water regardless of the flow state or the immersion state, and reduce the probability of insufficient metasilicic acid content in metasilicic acid mineralized water, thereby improving the stability and availability of the filter element assembly 1.

[0042] Metasilicic acid (H2SiO3) can be produced by the hydrolysis reaction of silicate ores in water. Taking sodium silicate (Na2SiO3) as an example, the reaction formula for the hydrolysis reaction to produce metasilicic acid is as follows:

[0043] Reaction 1:

[0044] Reaction 2:

[0045] Because metasilicic acid and orthosilicic acid (H4S iO4) exist in a dynamic equilibrium, and orthosilicic acid is highly acidic and can exist stably in an acidic environment, a suitable alkaline environment can shift the equilibrium of reaction 2 to the left, i.e., reverse reaction 2, reducing the orthosilicic acid content and increasing the metasilicic acid content.

[0046] However, excessive alkalinity will inhibit the forward progress of reaction 1, inhibiting the hydrolysis of silicate ions and thus inhibiting the formation of metasilicic acid. The following examples are obtained by adjusting the mass ratio of the alkaline filter material 8 to the metasilicic acid filter material 7. For each example, the pH value of the flowing water, the metasilicic acid concentration of the flowing water, and the metasilicic acid concentration of the soaking water after soaking for one hour are tested, and the results are shown in Table 1 below.

[0047] Table 1

[0048]

[0049] Referring to the data in Table 1, it can be seen that in the embodiment where the mass proportion of the alkaline filter material 8 is 0%, the flow water is displayed as weakly acidic water, and the metasilicic acid concentration of the flow water is very low, only 0.2 mg / L. When the mass proportion of the alkaline filter material 8 is increased to 10%, the metasilicic acid concentration of the flow water increases and can reach 1.2 mg / L. When the mass proportion of the alkaline filter material 8 is between 20% and 40%, the metasilicic acid concentration of the flow water reaches more than 2 mg / L. When the mass proportion of the alkaline filter material 8 is 30%, the metasilicic acid concentration of the soaking water can reach up to 10 mg / L. Furthermore, when the mass proportion of the alkaline filter material 8 is 50%, the pH value of the flow water is too high, while the metasilicic acid concentration of the flow water and the metasilicic acid concentration of the soaking water decrease. It can be found that the effect of alkaline substances in promoting the generation of metasilicic acid begins to decrease at this time.

[0050] Optionally, the alkaline filter material 8 may include at least one of brucite, periclase, calcite, and dolomite. The metasilicate filter material 7 may include at least one of diopside, serpentine, and medical stone.

[0051] In a specific embodiment of the present application, the inner waterway 2 has a first waterway 21 and a second waterway 24, and the inner waterway 2 has an outer cavity 22 and an inner cavity 23. The second waterway 24, the outer cavity 22, the inner cavity 23 and the first waterway 21 are connected in sequence. The outer cavity 22 is arranged on the outer periphery of the inner cavity 23, one of the metasilicic acid filter material 7 and the alkaline filter material 8 is arranged in the outer cavity 22, and the other of the metasilicic acid filter material 7 and the alkaline filter material 8 is arranged in the inner cavity 23. The filter element assembly 1 includes an outer sleeve 3 and an inner sleeve 4, the outer sleeve 3 is sleeved on the outer periphery of the inner sleeve 4, the outer cavity 22 is arranged between the inner sleeve 4 and the outer sleeve 3, and the inner cavity 23 is arranged on the side of the inner sleeve 4 facing away from the outer cavity 22. The inner sleeve 4 has a first opening 41 and a second opening 42, the first opening 41 connects the outer cavity 22 and the inner cavity 23, and the second opening 42 connects the inner cavity 23 and the second waterway 24.

[0052] In the structure provided in this specific embodiment, the outer sleeve 3 and the inner sleeve 4 are sleeved together to form an outer cavity 22 and an inner cavity 23 connected between the first waterway 21 and the second waterway 24, and the outer cavity 22 and the inner cavity 23 can be connected through the first outlet. When the metasilicic acid filter material 7 is disposed in the inner cavity 23 and the alkaline filter material 8 is disposed in the outer cavity 22, water can be introduced into the filter element assembly 1 via the second waterway 24. The water first flows through the alkaline filter material 8 in the outer cavity 22, then flows through the metasilicic acid filter material 7 in the inner cavity 23, and finally is discharged from the filter element assembly 1 via the second waterway 24. When the metasilicic acid filter material 7 is disposed in the outer cavity 22 and the alkaline filter material 8 is disposed in the inner cavity 23, the water can be introduced into the filter element assembly 1 via the first waterway 21. The water first flows through the alkaline filter material 8 in the inner cavity 23, then flows through the metasilicic acid filter material 7 in the outer cavity 22, and finally is discharged from the filter element assembly 1 via the first waterway 21. It can form water channels in different directions in two different filter material setting schemes.

[0053] In the overflow state, the water entering the filter element assembly 1 is first filtered by the alkaline filter material 8 disposed in one of the inner cavity 23 or the outer cavity 22, and then carries the alkaline substances dissolved by the alkaline filter material 8 into the other of the inner cavity 23 or the outer cavity 22 through the first opening 41. After being filtered by the metasilicic acid filter material 7 disposed in one of the inner cavity 23 or the outer cavity 22, the alkaline substances promote the dissolution of metasilicic acid in the metasilicic acid filter material 7. Only then can the water carry the metasilicic acid into the water outlet and then be output to the outside of the filter element assembly 1. This structure can separate the inner cavity 23 from the outer cavity 22, demarcating a clear inner waterway 2, and effectively promote the dissolution of metasilicic acid by using alkaline substances, so that the metasilicic acid content in the metasilicic acid mineralized water output by the filter element assembly 1 is guaranteed.

[0054] In a specific embodiment of the present application, the first water channel 21 has a third opening 211, and the second water channel 24 has a fourth opening 241. The third opening 211 and the fourth opening 241 are provided at the lower end of the outer sleeve 3, the first opening 41 is provided at the upper end of the inner sleeve 4, and the second opening 42 is provided at the lower end of the inner sleeve 4, and the second opening 42 is connected to the fourth opening 241.

[0055] In the structure provided in this specific embodiment, the outer sleeve 3 and the inner sleeve 4 cooperate to limit the metasilicic acid filter material 7 and the alkaline filter material 8, so that the direction of water flow in the overflow state can be controlled to flow from the alkaline filter material 8 to the metasilicic acid filter material 7.

[0056] When the alkaline filter material 8 is arranged in the inner cavity 23 and the metasilicic acid filter material 7 is arranged in the outer cavity 22, since the first opening 41 is arranged at the upper end of the inner sleeve 4, and water enters the filter element assembly 1 through the second opening 42, the water level in the inner cavity 23 of the filter element assembly 1 must rise to submerge the upper end of the inner sleeve 4 before it can enter the outer cavity 22 through the first outlet, thereby maintaining the water level in the filter element assembly 1, allowing the metasilicic acid filter material 7 and the alkaline filter material 8 to fully contact the water body, reducing the probability of low metasilicic acid content in the metasilicic acid mineralized water, and thus improving the stability and availability of the filter element assembly 1. In addition, water needs to be discharged to the filter element assembly 1 through the third opening 211. The water entering the outer cavity 22 through the first opening 41 is filtered by the metasilicic acid filter material 7 and the alkaline filter material 8 under the push of the water pressure in the overflow state, and is also affected by gravity. Gravity can further improve the efficiency of the metasilicic acid filter material 7 in filtering water, thereby making the metasilicic acid filter material 7 and the alkaline filter material 8 more fully contact with the water body, and using natural gravity to improve the working efficiency of the filter element assembly 1.

[0057] When the alkaline filter material 8 is arranged in the inner cavity 23 and the metasilicic acid filter material 7 is arranged in the outer cavity 22, since the first opening 41 is arranged at the upper end of the inner sleeve 4, and water enters the filter element assembly 1 through the third opening 211, the water level in the outer cavity 22 of the filter element assembly 1 must rise to the upper end of the inner sleeve 4 before it can enter the inner cavity 23 through the first outlet, thereby maintaining the water level in the filter element assembly 1, allowing the metasilicic acid filter material 7 and the alkaline filter material 8 to fully contact the water body, reducing the probability of low metasilicic acid content in the metasilicic acid mineralized water, and thus improving the stability and availability of the filter element assembly 1. In addition, water needs to be discharged to the filter element assembly 1 through the fourth opening 241. The water entering the inner cavity 23 through the first opening 41 is filtered by the metasilicic acid filter material 7 and the alkaline filter material 8 under the push of the water pressure in the overflow state, and is also affected by gravity. Gravity can further improve the efficiency of the metasilicic acid filter material 7 in filtering water, thereby making the metasilicic acid filter material 7 and the alkaline filter material 8 more fully contact with the water body, and using natural gravity to improve the working efficiency of the filter element assembly 1.

[0058] In a specific embodiment of the present application, the outer sleeve 3 and the inner sleeve 4 are arranged along the same axial direction, and the metasilicic acid filter material 7 and the alkaline filter material 8 are both cylindrical blocks.

[0059] Optionally, the outer sleeve 3, the metasilicic acid filter material 7, the inner sleeve 4, and the alkaline filter material 8 can be sequentially arranged from the outside in. In the overflow state, water flows from the inner cavity 23 to the outer cavity 22, and the fluid in the second waterway 24 flows sequentially through the alkaline filter material 8 and the metasilicic acid filter material 7 into the first waterway 21.

[0060] Optionally, the outer sleeve 3, alkaline filter material 8, inner sleeve 4, and metasilicic acid filter material 7 can be sequentially arranged from the outside in. In the overflow state, water flows from the inner cavity 23 to the outer cavity 22, and the fluid in the first waterway 21 flows sequentially through the alkaline filter material 8 and the metasilicic acid filter material 7 into the second waterway 24.

[0061] In the structure provided in this specific embodiment, the outer sleeve 3, the alkaline filter material 8, the inner sleeve 4, and the metasilicic acid filter material 7 can be sequentially installed in two different orders. In the overflow state, the water entering the filter element assembly 1 is first filtered by the alkaline filter material 8, and then carries the alkaline substance through the first outlet to contact the metasilicic acid filter material 7. After being filtered by the metasilicic acid filter material 7, the water containing metasilicic acid can be output to the outside of the filter element assembly 1, dividing a clear inner water path 2, and utilizing the alkaline substance to effectively promote the dissolution of metasilicic acid, so that the metasilicic acid content in the metasilicic acid mineralized water output by the filter element assembly 1 is guaranteed.

[0062] In a specific embodiment of the present application, the inner sleeve 4 includes a limiting protrusion 43, which is arranged adjacent to the first opening 41 and protrudes vertically into the outer cavity 22. The limiting protrusion 43 presses against and limits the metasilicic acid filter material 7 or alkaline filter material 8 in the outer cavity 22.

[0063] In the structure provided in this specific embodiment, by setting a limiting protrusion 43, the inner sleeve 4 can be connected and limited to the alkaline filter material 8 or metasilicic acid set on the periphery, so that the metasilicic acid filter material 7 and the alkaline filter material 8 are relatively fixed, reducing the probability of relative shaking between the two and affecting the operation of the filter element assembly 1, thereby improving the structural stability of the filter element assembly 1.

[0064] In one embodiment of the present application, the inner waterway 2 comprises a first waterway 21, a second waterway 24, and a central channel 85. The first waterway 21 has a third opening 211, and the second waterway 24 has a fourth opening 241. One end of the central channel 85 is blocked, and the other end of the central channel 85 is connected to the fourth opening 241. The filter element assembly 1 includes an outer sleeve 3, and the third opening 211 and the fourth opening 241 are disposed on the outer sleeve 3. The central channel 85 is disposed within the alkaline filter material 8, or the central channel 85 is disposed within the metasilicic acid filter material 7.

[0065] In the structure provided in this specific embodiment, a central channel 85 is provided on the alkaline filter material 8 or the metasilicic acid filter material 7 arranged in the inner cavity 23. The central channel 85 can be used to drain the water input or output of the filter element assembly 1, so that the input water can be filtered by the alkaline filter material 8 and the metasilicic acid filter material 7, and the alkaline substance is used to effectively promote the dissolution of metasilicic acid, so that the metasilicic acid content in the metasilicic acid mineralized water output by the filter element assembly 1 is guaranteed.

[0066] In a specific embodiment of the present application, the filter element assembly 1 further includes an upper end cap 5 and a lower end cap 6. The metasilicic acid filter material 7 has a first upper end face 71 and a first lower end face 72 disposed opposite to each other, and a first outer peripheral surface 73 and a first inner peripheral surface 74 connecting the first upper end face 71 and the first lower end face 72. The alkaline filter material 8 has a second upper end face 81 and a second lower end face 82 disposed opposite to each other, and a second outer peripheral surface 83 and a second inner peripheral surface 84 connecting the second upper end face 81 and the second lower end face 82.

[0067] The upper end cover 5 covers the first upper end surface 71 and the second upper end surface 81 and blocks one end of the central passage 85. The lower end cover 6 has a second inlet 61, which covers the first lower end surface 72 and the second lower end surface 82 and connects the central passage 85 with the fourth opening 241.

[0068] When the metasilicic acid filter material 7 is sleeved on the outer periphery of the alkaline filter material 8, the first inner peripheral surface 74 is adjacent to the second outer peripheral surface 83, and the second inner peripheral surface 84 is surrounded to form a central channel 85. When the alkaline filter material 8 is sleeved on the outer periphery of the metasilicic acid filter material 7, the second inner peripheral surface 84 is adjacent to the first outer peripheral surface 73, and the first inner peripheral surface 74 is surrounded to form a central channel 85.

[0069] In the structure provided in this specific embodiment, the central channel 85 can drain the water input or output of the filter element assembly 1, guiding it to contact the alkaline filter material 8 and the metasilicic acid filter material 7 for the filtration process, or output it to the outside of the filter element assembly 1. The upper end cover 5 and the lower end cover 6 can ensure that the water input to the central channel 85 can be filtered by the alkaline filter material 8 and the metasilicic acid filter material 7 before being output, which can reduce the probability of low metasilicic acid content in the metasilicic acid mineralized water, thereby improving the stability and availability of the filter element assembly 1.

[0070] In a specific embodiment of the present application, the third opening 211 and the fourth opening 241 are provided at the lower end of the outer sleeve 3 , and the outer sleeve 3 , the metasilicic acid filter material 7 , the alkaline filter material 8 and the central channel 85 are arranged along the same axial direction.

[0071] In the structure provided in this embodiment, water in the filter element assembly 1 can be input from the lower end of the outer sleeve 3, and after being filtered sequentially through the alkaline filter material 8 and the metasilicic acid filter material 7, it is then output from the lower end of the outer sleeve 3 to the outside of the filter element assembly 1. Driven by the water pressure in the overflow state, the water can more fully interact with the alkaline filter material 8, reducing the probability of low metasilicic acid content in the metasilicic acid mineralized water, thereby improving the stability and usability of the filter element assembly 1.

[0072] In one embodiment of the present application, when the metasilicic acid filter material 7 is sleeved around the outer periphery of the alkaline filter material 8, the first inner peripheral surface 74 and the second outer peripheral surface 83 are sintered and fixed. Alternatively, when the alkaline filter material 8 is sleeved around the outer periphery of the metasilicic acid filter material 7, the first inner peripheral surface 74 and the second outer peripheral surface 83 are sintered and fixed.

[0073] In the structure provided in this embodiment, the alkaline filter material 8 and the metasilicic acid filter material 7 can be sintered separately and then sleeved, or they can be sintered simultaneously to form an integral structure. When the alkaline filter material 8 and the metasilicic acid filter material 7 are sintered integrally, the first inner peripheral surface 74 and the second outer peripheral surface 83, or the second inner peripheral surface 84 and the first inner peripheral surface 74, can be tightly connected during the sintering process, thereby achieving relative fixation of the alkaline filter material 8 and the metasilicic acid filter material 7.

[0074] Figures 2 to 4 The first embodiment of the arrangement structure of the metasilicic acid filter material 7 and the alkaline filter material 8 is shown. In this embodiment, the metasilicic acid filter material 7 is sleeved on the outer periphery of the inner sleeve 4, and the alkaline filter material 8 is disposed in the inner cavity 23. Optionally, in a cross section perpendicular to the axis, the contour shape of the metasilicic acid filter material 7 can be the same as the contour shape of the outer cavity 22, and the contour shape of the alkaline filter material 8 can be the same as the contour shape of the inner cavity 23, to ensure that the water can be filtered by both the alkaline filter material 8 and the metasilicic acid filter material 7.

[0075] Figures 4 to 7 A second embodiment of the arrangement structure of the metasilicic acid filter material 7 and the alkaline filter material 8 is shown. In this embodiment, the metasilicic acid filter material 7 is directly sleeved on the periphery of the alkaline filter material 8 , and the central channel 85 is provided in the alkaline filter material 8 . Figure 8 A third embodiment of the arrangement structure of the metasilicic acid filter material 7 and the alkaline filter material 8 is shown. In this embodiment, the alkaline filter material 8 is directly sleeved on the outer periphery of the metasilicic acid filter material 7 , and the central channel 85 is provided in the metasilicic acid filter material 7 .

[0076] Figure 9 A fourth embodiment of the arrangement of the metasilicic acid filter material 7 and the alkaline filter material 8 is shown. In this embodiment, the metasilicic acid filter material 7 is disposed in the inner cavity 23, and the alkaline filter material 8 is sleeved around the outer periphery of the inner sleeve 4. Optionally, in a cross-section perpendicular to the axis, the contour of the alkaline filter material 8 is the same as the contour of the outer cavity 22. The contour of the metasilicic acid filter material 7 can be the same as the contour of the inner cavity 23 to ensure that the water is filtered by both the alkaline filter material 8 and the metasilicic acid filter material 7.

[0077] The first and fourth embodiments employ similar inner sleeve 4 and outer sleeve 3 configurations, but differ in the direction of the inner waterway 2 and the placement of the filter material. The second and third embodiments employ similar central channel 85, upper end cap 5, and lower end cap 6 configurations, but differ in the direction of the inner waterway 2 and the placement of the filter material.

[0078] Optionally, the filter element assembly 1 may further include a packaging cap 9, which is disposed on one end of the outer sleeve 3 and can isolate the inner waterway 2 in the outer sleeve 3 from the outside. During production and assembly of the filter element assembly 1, the alkaline filter material 8, inner sleeve 4, metasilicic acid filter material 7, and other structures can be first installed into the outer sleeve 3, and then packaged with the packaging cap 9, thereby isolating the inner waterway 2 from the outside.

[0079] The specific embodiment of the present application further provides a mineral water purifier, comprising a device body and a filter element assembly 1 as described in any of the above specific embodiments.

[0080] In the structure provided in this specific embodiment, the nested metasilicic acid filter material 7 and the alkaline filter material 8 cooperate with each other to form a waterway from the inside to the outside or vice versa, so that the alkaline filter material 8 and the metasilicic acid filter material 7 are successively arranged in series in the inner waterway 2 of the filter element assembly 1. When the filter element assembly 1 is in a state of overflow with water continuously flowing outward, the alkaline substances in the alkaline filter material 8 can normally dissolve into the flowing water. Since the metasilicic acid filter material 7 is arranged downstream of the alkaline filter material 8, the alkaline substances flow to the metasilicic acid filter material 7 along with the water, which can promote the dissolution of the metasilicic acid in the metasilicic acid filter material 7 into the flowing water, thereby increasing the content of metasilicic acid in the metasilicic acid mineralized water output by the filter element assembly 1 in the overflow state.

[0081] In the soaking state where the filter element assembly 1 stops discharging water, the soaking water in the inner waterway 2 no longer flows through the alkaline filter material 8 first and then through the metasilicic acid filter material 7. Although the soaking water no longer has a macroscopic flow trend, the alkaline filter material 8 and the metasilicic acid filter material 7 are actually connected through the soaking water, so that the alkaline substance can also diffuse in the soaking water to move toward the metasilicic acid filter material 7, which can promote the dissolution of metasilicic acid into the soaking water, thereby increasing the content of metasilicic acid in the metasilicic acid mineralized water output by the filter element assembly 1 in the soaking state.

[0082] The filter element assembly 1 structure provided in the present application can effectively increase the content of metasilicic acid in metasilicic acid mineralized water regardless of the flow state or the immersion state, reduce the probability of insufficient metasilicic acid content in metasilicic acid mineralized water, and thus improve the stability and availability of the mineral water purifier.

[0083] Optionally, the device body may include a water quality sensor, which is connected to the internal water channel 2 and / or the device body, and the water quality sensor is located downstream of the alkaline filter material 8 and the metasilicic acid filter material 7, and can detect the water quality of the water output from the mineral water purifier.

[0084] The water quality sensor may include at least one of a pH sensor and a TDS sensor. In the structure provided in this embodiment, the pH sensor is used to measure the pH value of the metasilicic acid mineralized water and can convert it into a corresponding usable output signal, thereby characterizing the pH value of the metasilicic acid mineralized water. The TDS sensor is a device for measuring the total dissolved solids (TDS) in water, which can continuously monitor the conductivity value of the measured object. The pH value and metasilicic acid content of the metasilicic acid mineralized water can be calculated based on the conductivity value, thereby characterizing the pH value and metasilicic acid content of the metasilicic acid mineralized water.

[0085] References to "embodiments" and "implementation methods" in this application mean that the specific features, structures or characteristics described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrases in various locations in the specification does not necessarily refer to the same embodiment, nor are they independent or alternative embodiments that are mutually exclusive with other embodiments. It is understood explicitly and implicitly by those skilled in the art that the embodiments described in this application can be combined with other embodiments. In addition, it should be understood that the features, structures or characteristics described in the various embodiments of this application can be arbitrarily combined to form another embodiment that does not deviate from the spirit and scope of the technical solution of this application, unless there is a contradiction between them.

[0086] Finally, it should be noted that the above implementation modes are only used to illustrate the technical solutions of the present application and are not intended to limit them. Although the present application has been described in detail with reference to the above preferred implementation modes, those skilled in the art should understand that modifications or equivalent replacements of the technical solutions of the present application should not depart from the spirit and scope of the technical solutions of the present application.

Claims

1. A filter element assembly, characterized in that: The invention comprises a metasilicic acid filter material (7) and an alkaline filter material (8), wherein an inner water channel (2) is provided in the filter element component (1), the metasilicic acid filter material (7) and the alkaline filter material (8) are sleeved together, and the fluid in the inner water channel (2) flows through the alkaline filter material (8) and the metasilicic acid filter material (7) in sequence.

2. The filter element assembly according to claim 1, characterized in that: The inner water channel (2) comprises a first water channel (21) and a second water channel (24); the inner water channel (2) comprises an outer cavity (22) and an inner cavity (23); the second water channel (24), the outer cavity (22), the inner cavity (23) and the first water channel (21) are connected in sequence; the outer cavity (22) is arranged at the periphery of the inner cavity (23); one of the metasilicic acid filter material (7) and the alkaline filter material (8) is arranged in the outer cavity (22); and the other of the metasilicic acid filter material (7) and the alkaline filter material (8) is arranged in the inner cavity (23); The filter element assembly (1) comprises an outer sleeve (3) and an inner sleeve (4), wherein the outer sleeve (3) is sleeved on the outer circumference of the inner sleeve (4), the outer cavity (22) is arranged between the inner sleeve (4) and the outer sleeve (3), the inner cavity (23) is arranged on a side of the inner sleeve (4) away from the outer cavity (22), and the inner sleeve (4) has a first opening (41) and a second opening (42), wherein the first opening (41) connects the outer cavity (22) and the inner cavity (23), and the second opening (42) connects the inner cavity (23) and the second waterway (24).

3. The filter element assembly according to claim 2, characterized in that: The first water channel (21) has a third opening (211), and the second water channel (24) has a fourth opening (241). The third opening (211) and the fourth opening (241) are arranged at the lower end of the outer sleeve (3). The first opening (41) is arranged at the upper end of the inner sleeve (4), and the second opening (42) is arranged at the lower end of the inner sleeve (4), and the second opening (42) is connected to the fourth opening (241).

4. The filter element assembly according to claim 3, characterized in that: The outer sleeve (3) and the inner sleeve (4) are arranged along the same axial direction, and the metasilicic acid filter material (7) and the alkaline filter material (8) are both cylindrical blocks. The outer sleeve (3), the metasilicic acid filter material (7), the inner sleeve (4), and the alkaline filter material (8) are sequentially arranged from the outside to the inside, and the fluid in the second water path (24) flows through the alkaline filter material (8) and the metasilicic acid filter material (7) in sequence and enters the first water path (21); or, The outer sleeve (3), the alkaline filter material (8), the inner sleeve (4), and the metasilicic acid filter material (7) are sequentially arranged from the outside to the inside, and the fluid in the first water channel (21) flows through the alkaline filter material (8) and the metasilicic acid filter material (7) in sequence and enters the second water channel (24).

5. The filter element assembly according to claim 4, characterized in that: The inner sleeve (4) comprises a limiting protrusion (43), which is arranged adjacent to the first opening (41) and protrudes perpendicularly to the axial direction toward the outer cavity (22), and the limiting protrusion (43) abuts against and limits the metasilicic acid filter material (7) or the alkaline filter material (8) in the outer cavity (22).

6. The filter element assembly according to claim 1, characterized in that: The inner water channel (2) comprises a first water channel (21), a second water channel (24) and a central channel (85); the first water channel (21) has a third opening (211); the second water channel (24) has a fourth opening (241); one end of the central channel (85) is blocked; the other end of the central channel (85) is butted against the fourth opening (241); the filter element assembly (1) comprises an outer sleeve (3); the third opening (211) and the fourth opening (241) are arranged on the outer sleeve (3); Wherein, the central channel (85) is arranged in the alkaline filter material (8), or the central channel (85) is arranged in the metasilicic acid filter material (7).

7. The filter element assembly according to claim 6, characterized in that: The filter element assembly (1) further comprises an upper end cover (5) and a lower end cover (6); the metasilicic acid filter material (7) comprises a first upper end face (71) and a first lower end face (72) arranged opposite to each other, and a first outer peripheral face (73) and a first inner peripheral face (74) connecting the first upper end face (71) and the first lower end face (72); the alkaline filter material (8) comprises a second upper end face (81) and a second lower end face (82) arranged opposite to each other, and a first outer peripheral face (73) and a first inner peripheral face (74) connecting the second upper end face (81) and the second lower end face (82); The upper end cover (5) is provided on the first upper end face (71) and the second upper end face (81) to block one end of the central channel (85); the lower end cover (6) is provided with a second inlet (61); the lower end cover (6) is provided on the first lower end face (72) and the second lower end face (82), and the second inlet (61) communicates with the central channel (85) and the fourth opening (241); Wherein, when the metasilicic acid filter material (7) is sleeved on the periphery of the alkaline filter material (8), the first inner peripheral surface (74) is adjacent to the second outer peripheral surface (83), and the second inner peripheral surface (84) is surrounded to form the central channel (85); or, when the alkaline filter material (8) is sleeved on the periphery of the metasilicic acid filter material (7), the second inner peripheral surface (84) is adjacent to the first outer peripheral surface (73), and the first inner peripheral surface (74) is surrounded to form the central channel (85).

8. The filter element assembly according to claim 7, characterized in that: The third opening (211) and the fourth opening (241) are arranged at the lower end of the outer sleeve (3), and the outer sleeve (3), the metasilicic acid filter material (7), the alkaline filter material (8) and the central channel (85) are arranged along the same axial direction.

9. The filter element assembly according to claim 7, characterized in that: When the metasilicic acid filter material (7) is sleeved on the outer periphery of the alkaline filter material (8), the first inner peripheral surface (74) and the second outer peripheral surface (83) are sintered and fixed; or, When the alkaline filter material (8) is sleeved on the outer periphery of the metasilicic acid filter material (7), the first inner peripheral surface (74) and the second outer peripheral surface (83) are sintered and fixed.

10. A mineral water purifier, characterized in that: include: The filter element assembly according to any one of claims 1 to 9; The device body is connected to the filter element assembly (1).

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