Composite filter element and water purification system with same
By designing a composite filter element that includes a reverse osmosis filter element and a mineralization filter element, the problem of existing filter elements only providing a single water quality is solved, realizing the function of providing both pure water and mineral water at the same time, optimizing the user experience and reducing the difficulty of assembly.
Patent Information
- Application Number
- CN202520173314.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-24
- Publication Date
- 2026-02-06
- Estimated Expiration
- 2035-01-24
AI Technical Summary
Existing composite filter cartridges can only provide water of a single quality, which cannot meet the diverse needs of users.
Design a composite filter element comprising a reverse osmosis filter element and a mineralization filter element, which provide pure water and mineral water respectively through different flow channels and interfaces. The outer shell is provided with inlet water, pure water, wastewater and mineral water interfaces, and the water quality can be improved by an activated carbon filter element.
It enables the simultaneous supply of pure water and mineral water to meet the diverse water needs of users, optimizes the user experience, and reduces assembly difficulty and volume through structural design.
Smart Images
Figure CN223879584U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to filter core technical field, and specifically provide a kind of composite filter core and the water purification system with the composite filter core. BACKGROUND
[0002] In recent years, people's living standards continue to improve, people pay more and more attention to drinking water health, water purifier gradually becomes more and more common household appliances in family.
[0003] In the existing water purifier, in order to reduce the size of water purifier, many water purifiers integrate multiple filter cartridges together. For example, reverse osmosis filter cartridge and activated carbon filter cartridge are integrated to form a composite filter cartridge, and for example, reverse osmosis filter cartridge and mineralization filter cartridge are integrated to form a composite filter cartridge. However, these composite filter cartridges can only provide water of a single water quality. The composite filter cartridge formed by reverse osmosis filter cartridge and activated carbon filter cartridge can only provide pure water, and the composite filter cartridge formed by reverse osmosis filter cartridge and mineralization filter cartridge can only provide mineral water, which cannot meet the diversified needs of users.
[0004] Therefore, there is a need in the art for a new technical solution to solve the above problems. UTILITY MODEL CONTENT
[0005] The utility model aims to solve the above technical problems, i.e. to solve the problem that the existing composite filter cartridge can only provide water of a single water quality, which cannot meet the diversified needs of users.
[0006] In a first aspect, the utility model provides a composite filter cartridge, which comprises a shell, a reverse osmosis filter cartridge and a mineralization filter cartridge are arranged in the shell, a water inlet interface, a pure water interface, a waste water interface and a mineral water interface are arranged on the shell, the reverse osmosis filter cartridge comprises a water inlet, a pure water outlet and a waste water outlet; the water inlet is communicated with the water inlet interface through a water inlet flow channel, the pure water outlet can be communicated with the pure water interface and the inlet of the mineralization filter cartridge through a pure water flow channel, the waste water outlet is communicated with the waste water interface through a waste water flow channel, and the outlet of the mineralization filter cartridge is communicated with the mineral water interface through a mineral water flow channel.
[0007] In the preferred technical solution of the above composite filter cartridge, the shell is a cylindrical shell, a first mounting area and a second mounting area distributed from the first end of the shell to the second end are arranged in the shell, the reverse osmosis filter cartridge is mounted in the first mounting area, the second mounting area is provided with a first inner shell, and the mineralization filter cartridge is arranged in the first inner shell; the gap between the first inner shell and the mineralization filter cartridge forms the pure water flow channel.
[0008] In the preferred technical scheme of the composite filter cartridge, the reverse osmosis filter cartridge has an end cap at one end close to the second mounting area, the first inner shell includes a cylinder structure extending from the end cap towards the second mounting area, and a cover arranged at one end of the cylinder structure away from the end cap, the cover being detachably connected with the cylinder structure.
[0009] In the preferred technical scheme of the composite filter cartridge, the second mounting area is further provided with a second inner shell sleeved outside the first inner shell, the second inner shell and the first inner shell forming the wastewater flow channel therebetween, and the second inner shell and the outer shell forming a part of the water inlet flow channel therebetween.
[0010] In the preferred technical scheme of the composite filter cartridge, the pure water interface and the inlet of the mineralization filter cartridge are both in communication with the pure water flow channel; or the pure water interface is in communication with the pure water flow channel, and the inlet of the mineralization filter cartridge is connected with the pure water flow channel through a one-way valve capable of being communicated in the direction of the pure water flow channel towards the inlet of the mineralization filter cartridge; or the pure water interface and the inlet of the mineralization filter cartridge are respectively connected with the pure water flow channel through electric control valves.
[0011] In the preferred technical scheme of the composite filter cartridge, an activated carbon filter cartridge is connected in series on the pure water flow channel.
[0012] In the preferred technical scheme of the composite filter cartridge, the activated carbon filter cartridge is sleeved outside the mineralization filter cartridge, a water inlet of the activated carbon filter cartridge being formed at a side of the activated carbon filter cartridge away from the mineralization filter cartridge, and a water outlet of the activated carbon filter cartridge being formed at a side of the activated carbon filter cartridge towards the mineralization filter cartridge.
[0013] In the preferred technical scheme of the composite filter cartridge, the activated carbon filter cartridge includes an activated carbon cylinder, both ends of the activated carbon cylinder being blocked; the mineralization filter cartridge includes a shell and a mineralization filter material arranged in the shell, the inlet of the mineralization filter cartridge being arranged at a side of the shell towards the reverse osmosis filter cartridge, and the outlet of the mineralization filter cartridge being arranged at a side of the shell towards the second end of the outer shell.
[0014] In the preferred technical scheme of the composite filter cartridge, the water inlet interface, the pure water interface, the wastewater interface and the mineral water interface are all arranged at the second end of the outer shell.
[0015] In the technical scheme, the composite filter element comprises a shell, a reverse osmosis filter element and a mineralization filter element are arranged in the shell, a water inlet, a pure water outlet, a waste water outlet and a mineral water outlet are arranged on the shell, the reverse osmosis filter element comprises a water inlet, a pure water outlet and a waste water outlet; the water inlet is communicated with the water inlet through a water inlet channel, the pure water outlet is communicated with the pure water outlet and the inlet of the mineralization filter element through a pure water channel, the waste water outlet is communicated with the waste water outlet through a waste water channel, and the outlet of the mineralization filter element is communicated with the mineral water outlet through a mineral water channel.
[0016] Through the arrangement, the water entering the composite filter element is filtered by the reverse osmosis filter element to generate pure water, the pure water flowing out of the pure water outlet of the reverse osmosis filter element can flow to the pure water outlet through the pure water channel, so as to provide the pure water outside the composite filter element, and the pure water flowing out of the pure water outlet of the reverse osmosis filter element can also flow to the inlet of the mineralization filter element through the pure water channel, the pure water flows into the inlet of the mineralization filter element and flows out of the outlet of the mineralization filter element to become mineral water, and the mineral water flows to the mineral water outlet through the mineral water channel, so as to provide the mineral water outside the composite filter element. That is, the composite filter element can provide the pure water and the mineral water outside, so as to meet the diversified needs of the user and optimize the use experience of the user.
[0017] Preferably, the shell is a cylindrical shell, the first mounting area and the second mounting area are arranged in the shell from the first end to the second end of the shell, the reverse osmosis filter element is arranged in the first mounting area, the second mounting area is provided with a first inner shell, and the mineralization filter element is arranged in the first inner shell; a gap between the first inner shell and the mineralization filter element forms the pure water channel.
[0018] Through the arrangement, the compactness of the activated carbon filter element and the mineralization filter element can be ensured, the volume of the composite filter element is prevented from being too large, the pure water channel is facilitated to be arranged, and the assembly difficulty of the composite filter element is reduced.
[0019] Preferably, the end of the reverse osmosis filter element close to the second mounting area is provided with an end cover, the first inner shell comprises a cylinder structure extending from the end cover to the second mounting area and a cover arranged at one end of the cylinder structure away from the end cover, and the cover is detachably connected with the cylinder structure.
[0020] Through the arrangement, the structure of the first inner shell is simplified, the installation of the first inner shell and the disassembly and assembly of the mineralization filter element are facilitated, and the assembly difficulty of the composite filter element is reduced.
[0021] Preferably, the second mounting area is further provided with a second inner shell sleeved on the outer side of the first inner shell, a waste water channel is formed between the second inner shell and the first inner shell, and the second inner shell and the shell form part of the water inlet channel.
[0022] Through the arrangement, the wastewater flow channel and the pure water flow channel are conveniently arranged, and the assembly difficulty of the composite filter element is reduced.
[0023] Preferably, the pure water interface and the inlet of the mineralization filter element are both in communication with the pure water flow channel, or the pure water interface is in communication with the pure water flow channel, and the inlet of the mineralization filter element is connected with the pure water flow channel through a one-way valve capable of being in communication in the direction from the pure water flow channel to the inlet of the mineralization filter element, or the pure water interface and the inlet of the mineralization filter element are respectively connected with the pure water flow channel through electric control valves.
[0024] Through the arrangement, the composite filter element of the utility model can simultaneously provide pure water and mineral water to the outside, thereby meeting various water demands of users at the same time.
[0025] Preferably, the active carbon filter element is connected in series on the pure water flow channel.
[0026] Through the arrangement, the taste of the pure water and the mineral water provided by the composite filter element can be improved.
[0027] Preferably, the active carbon filter element is sleeved on the outside of the mineralization filter element, the side of the active carbon filter element away from the mineralization filter element forms a water inlet of the active carbon filter element, and the side of the active carbon filter element towards the mineralization filter element forms a water outlet of the active carbon filter element.
[0028] Through the arrangement, the filtering area of the active carbon filter element can be increased, and the compactness of the active carbon filter element and the mineralization filter element can be ensured, thereby avoiding that the volume of the composite filter element is too large.
[0029] Preferably, the active carbon filter element comprises an active carbon cylinder body, both ends of the active carbon cylinder body are blocked, the mineralization filter element comprises a shell and a mineralization filter material arranged in the shell, the inlet of the mineralization filter element is arranged on the side of the shell towards the reverse osmosis filter element, and the outlet of the mineralization filter element is arranged on the side of the second end of the shell.
[0030] Through the arrangement, the compactness of the entire composite filter element can be ensured, the volume of the composite filter element can be avoided to be too large, and in the case that the pure water interface and the inlet of the mineralization filter element are both in communication with the outlet end of the pure water flow channel, the risk that the mineral ions in the mineralization filter element penetrate into the pure water flow channel can be reduced.
[0031] Preferably, the water inlet interface, the pure water interface, the wastewater interface and the mineral water interface are all arranged on the second end of the shell.
[0032] Through the arrangement, the composite filter element and the corresponding pipeline can be conveniently connected, and the composite filter element and the water purifier can be conveniently disassembled.
[0033] In a second aspect, the utility model also provides a water purification system, the water purification system includes water inlet pipeline, waste water pipeline, pure water pipeline, mineral water pipeline, water outlet spare and the composite filter core of any one of above technical solutions, the water outlet end of water inlet pipeline is connected with the outer end of water inlet interface, the outer end of waste water interface is connected with the water inlet end of waste water pipeline, the outer end of pure water interface and the outer end of mineral water interface are connected to the import of water outlet spare through pure water pipeline and mineral water pipeline respectively, pure water pipeline and mineral water pipeline are configured with regulating valve assembly, the valve assembly can make the outer end of pure water interface and the outer end of mineral water interface alternatively with the import of water outlet spare, the valve assembly can also make the outer end of pure water interface and the outer end of mineral water interface simultaneously with the import of water outlet spare, and adjust the proportion of the flow of pure water pipeline and the flow of mineral water pipeline.
[0034] Need explanation, this water purification system has the all technical effects of composite filter core of any one of above technical solutions, here no longer repeat. In addition, when the outer end of pure water interface and the outer end of mineral water interface simultaneously with the import of water outlet spare, the proportion of the flow of pure water pipeline and the flow of mineral water pipeline can be adjusted through valve assembly, thereby forming different concentration mineral water and flowing out through water outlet spare, further satisfy the diversified water demand of user. BRIEF DESCRIPTION OF DRAWINGS
[0035] The preferred embodiments of the utility model are described below with reference to the drawings, wherein:
[0036] Figure 1 It is the structure schematic diagram of composite filter core of the first embodiment of the utility model;
[0037] Figure 2 It is the plan view of composite filter core of the first embodiment of the utility model;
[0038] Figure 3 It is the section along A-A of the figure Figure 2 (Show the water flow direction in composite filter core when supplying pure water in the figure); Figure 1
[0039] Figure 4 It is the section along A-A of the figure Figure 2 (Show the water flow direction in composite filter core when supplying mineral water in the figure); Figure 2
[0040] Figure 5 It is the section along A-A of the figure Figure 2 (Show the water flow direction in composite filter core when supplying pure water and mineral water simultaneously in the figure); Figure 3
[0041] Figure 6 is a structure diagram of a water purification system of a first embodiment of the present utility model;
[0042] Figure 7 is a composite filter element along Figure 2 A-A surface of the second embodiment of the present utility model is shown in the figure Figure 1 (figure shows the water flow direction in the composite filter element when supplying pure water);
[0043] Figure 8 is Figure 7 the enlarged view of partial B in the figure;
[0044] Figure 9 is a composite filter element along Figure 2 A-A surface of the second embodiment of the present utility model is shown in the figure Figure 2 (figure shows the water flow direction in the composite filter element when supplying mineral water);
[0045] Figure 10 is Figure 9 the enlarged view of partial C in the figure.
[0046] List of reference signs:
[0047] 1, shell; 11, barrel; 12, lower cover; 13, upper cover; 131, water inlet interface; 132, pure water interface; 133, waste water interface; 134, mineral water interface; 14, first installation area; 15, second installation area; 2, reverse osmosis filter element; 21, center tube; 211, first sealing plate; 22, membrane structure; 23, end cover; 3, mineralization filter element; 31, shell; 311, one-way valve; 32, mineralization filter material; 4, activated carbon filter element; 41, activated carbon barrel; 42, second sealing plate; 51, first inner shell; 511, barrel structure; 512, cover; 52, second inner shell; 61, water inlet flow channel; 62, pure water flow channel; 63, waste water flow channel; 64, mineral water flow channel; 71, water inlet pipeline; 72, waste water pipeline; 73, pure water pipeline; 74, mineral water pipeline; 81, PPC filter element; 82, water inlet valve; 83, booster pump; 84, waste water valve; 85, pure water outlet valve; 86, proportional valve; 87, mineral water outlet valve; 88, water outlet nozzle. DETAILED DESCRIPTION
[0048] Firstly, the person skilled in the art should understand that the following described embodiments are only for explaining the technical principles of the present utility model, and are not intended to limit the protection scope of the present utility model.
[0049] It should be noted that in the description of the utility model, terms such as "upper" and "lower," indicating directional or positional relationships, are based on the directional or positional relationships shown in the accompanying drawings. This is merely for ease of description and does not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of the present utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0050] Furthermore, it should be noted that in the description of this utility model, unless otherwise explicitly specified and limited, the term "connection" should be interpreted broadly. For example, it can refer to a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0051] Based on the problem mentioned in the background technology that existing composite filter cartridges can only provide water of a single quality and cannot meet the diverse needs of users, this utility model provides a composite filter cartridge that can provide both pure water and mineral water to the outside, thereby meeting the diverse needs of users and optimizing the user experience.
[0052] The following reference Figures 1 to 10 This utility model will be described in detail below. Among other things, Figure 1 This is a schematic diagram of the structure of the composite filter element according to the first embodiment of this utility model; Figure 2 This is a top view of the composite filter element according to the first embodiment of this utility model; Figure 3 It is along Figure 2 Sectional view of the middle AA plane Figure 1 (The diagram shows the direction of water flow inside the composite filter cartridge when supplying pure water); Figure 4 It is along Figure 2 Sectional view of the middle AA plane Figure 2 (The diagram shows the direction of water flow within the composite filter cartridge when supplying mineral water); Figure 5 It is along Figure 2 Sectional view of the middle AA plane Figure 3 (The diagram shows the water flow direction within the composite filter cartridge when both pure water and mineral water are supplied simultaneously.) Figure 6 This is a schematic diagram of the water purification system according to the first embodiment of this utility model; Figure 7 The composite filter element of the second embodiment of this utility model is along Figure 2 Sectional view of the middle AA plane Figure 1 (The diagram shows the direction of water flow inside the composite filter cartridge when supplying pure water); Figure 8 yes Figure 7 A magnified view of part B in the middle; Figure 9The composite filter element along Figure 2 The cross section of A-A plane Figure 2 (figure shows the water flow direction in the composite filter element when supplying mineral water); Figure 10 is Figure 9 The enlarged view of part C.
[0053] In the first embodiment of the utility model, as shown in Figures 1 to 5 The composite filter element comprises a shell 1, the shell 1 is provided with a reverse osmosis filter element 2, a mineralization filter element 3 and an activated carbon filter element 4, the shell 1 is provided with a water inlet interface 131, a pure water interface 132, a waste water interface 133 and a mineral water interface 134, the reverse osmosis filter element 2 comprises a water inlet, a pure water outlet and a waste water outlet, the water inlet of the reverse osmosis filter element 2 is communicated with the water inlet interface 131 through a water inlet channel 61, the pure water outlet of the reverse osmosis filter element 2 can be communicated with the pure water interface 132 and the inlet of the mineralization filter element 3 through a pure water channel 62, the waste water outlet of the reverse osmosis filter element 2 is communicated with the waste water interface 133 through a waste water channel 63, and the outlet of the mineralization filter element 3 is communicated with the mineral water interface 134 through a mineral water channel 64. Specifically, the shell 1 is a cylindrical shell, the shell 1 comprises a cylindrical barrel 11, a lower cover 12 arranged at the lower end of the barrel 11 and an upper cover 13 arranged at the upper end of the barrel 11, the water inlet interface 131, the pure water interface 132, the waste water interface 133 and the mineral water interface 134 are arranged on the upper cover 13. The shell 1 is provided with a first mounting area 14 and a second mounting area 15 distributed from the lower end to the upper end of the shell 1, the reverse osmosis filter element 2 is installed in the first mounting area 14, the second mounting area 15 is provided with a first inner shell 51 and a second inner shell 52 sleeved on the outer side of the first inner shell 51. The second inner shell 52 and the shell 1 form part of the water inlet channel 61, and the outer circumferential surface of the reverse osmosis filter element 2 and the shell 1 form another part of the water inlet channel 61; the second inner shell 52 and the first inner shell 51 form the waste water channel 63; the mineralization filter element 3 and the activated carbon filter element 4 are arranged in the first inner shell 51, the gap between the first inner shell 51 and the mineralization filter element 3 forms the pure water channel 62, and the activated carbon filter element 4 is connected in series on the pure water channel 62.
[0054] As Figures 3 to 5As shown, the reverse osmosis filter core 2 includes a center tube 21, a cylindrical membrane structure 22 formed on the outer peripheral side of the center tube 21, a water-proof layer (not shown in the figure, which can be a plastic film, a plastic cylinder or other suitable structure) wrapped on the outer peripheral surface of the membrane structure 22, and an end cover 23 sleeved on the upper end of the membrane structure 22. Among them, the membrane structure 22 is formed in a coiled manner by a reverse osmosis membrane bag, the lower end of the membrane structure 22 forms the water inlet of the reverse osmosis filter core 2; the lower end of the center tube 21 is blocked by a first sealing plate 211, and the upper end of the center tube 21 forms the pure water outlet of the reverse osmosis filter core 2; a plurality of openings are formed on the end cover 23 near the edge, which form the wastewater outlet of the reverse osmosis filter core 2. The first inner shell 51 is a cylindrical shell, which includes a cylinder structure 511 extending towards the second mounting area 15 on the end cover 23, and a cover body 512 provided at one end of the cylinder structure 511 away from the end cover 23, which is detachably connected with the cylinder structure 511.
[0055] The active carbon filter core 4 is sleeved on the outside of the mineralization filter core 3, the gap between the active carbon filter core 4 and the mineralization filter core 3 forms part of the pure water flow channel 62, the gap between the active carbon filter core 4 and the first inner shell 51 forms another part of the pure water flow channel 62, the side of the active carbon filter core 4 away from the mineralization filter core 3 forms the water inlet of the active carbon filter core 4, and the side of the active carbon filter core 4 towards the mineralization filter core 3 forms the water outlet of the active carbon filter core 4. The active carbon filter core 4 includes an active carbon cylinder 41, the upper end of the active carbon cylinder 41 is blocked by being in contact with the inner wall of the cover body 512 of the first inner shell 51, and the lower end of the active carbon cylinder 41 is blocked by being provided with a second sealing plate 42.
[0056] The mineralization filter core 3 includes a shell 31 and mineralization filter material 32 provided in the shell 31, the inlet of the mineralization filter core is provided at the lower part of the shell 31 (i.e. the side towards the reverse osmosis filter core 2), and the outlet of the mineralization filter core is provided at the upper part of the shell 31 (i.e. the side towards the upper end of the outer shell 1). The pure water flow channel 62 is communicated with the upper end of the center tube 21 (i.e. the pure water outlet of the reverse osmosis filter core 2); the upper end of the first inner shell 51 forms a through hole for communicating the pure water flow channel 62 with the pure water interface 132, and the pure water flow channel 62 also keeps communication with the inlet of the mineralization filter core 3.
[0057] In the case that the composite filter core of the present application is installed in the water purifier and the valve is used to communicate the pure water interface 132 with the pure water outlet of the water purifier, the water flow direction in the composite filter core is as shown in the figure. Figure 3water flows from the water inlet interface 131 to the water inlet of the reverse osmosis filter element 2 through the water inlet channel 61, the pure water produced by the membrane structure 22 of the reverse osmosis filter element 2 is collected in the center tube 21, the pure water collected in the center tube 21 flows out from the upper end of the center tube 21 and flows to the pure water channel 62, the pure water flowing through the pure water channel 62 is filtered by the activated carbon filter element 4 and then flows to the water outlet interface 132, and finally flows out from the water outlet of the water purifier; the waste water produced by the membrane structure 22 of the reverse osmosis filter element 2 flows to the waste water interface 133 through the waste water channel 63 and is discharged through the waste water pipe connected with the waste water interface 133.
[0058] In the case that the composite filter element of the utility model is installed in the water purifier and the mineral water interface 134 and the mineral water outlet of the water purifier are communicated through the valve, the water flow direction in the composite filter element is as shown by the arrows in Figure 4 water flows from the water inlet interface 131 to the water inlet of the reverse osmosis filter element 2 through the water inlet channel 61, the pure water produced by the membrane structure 22 of the reverse osmosis filter element 2 is collected in the center tube 21, the pure water collected in the center tube 21 flows out from the upper end of the center tube 21 and flows to the pure water channel 62, the pure water flowing through the pure water channel 62 is filtered by the activated carbon filter element 4 and then flows to the water outlet interface 132, and finally flows out from the water outlet of the water purifier; the waste water produced by the membrane structure 22 of the reverse osmosis filter element 2 flows to the waste water interface 133 through the waste water channel 63 and is discharged through the waste water pipe connected with the waste water interface 133.
[0059] In the case that the composite filter element of the utility model is installed in the water purifier and the mineral water interface 134 and the mineral water outlet of the water purifier are communicated through the valve, the water flow direction in the composite filter element is as shown by the arrows in Figure 5 water flows from the water inlet interface 131 to the water inlet of the reverse osmosis filter element 2 through the water inlet channel 61, the pure water produced by the membrane structure 22 of the reverse osmosis filter element 2 is collected in the center tube 21, the pure water collected in the center tube 21 flows out from the upper end of the center tube 21 and flows to the pure water channel 62, the pure water flowing through the pure water channel 62 is filtered by the activated carbon filter element 4 and then flows to the water outlet interface 132, and finally flows out from the water outlet of the water purifier; the waste water produced by the membrane structure 22 of the reverse osmosis filter element 2 flows to the waste water interface 133 through the waste water channel 63 and is discharged through the waste water pipe connected with the waste water interface 133.
[0060] Through the structure of the composite filter element, the composite filter element can provide pure water and mineral water to the outside, thereby meeting diversified needs of users and optimizing user experience.
[0061] Since the pure water interface 132 and the inlet of the mineralization filter element 3 are both communicated with the pure water flow channel 62, the composite filter element can provide pure water and mineral water to the outside at the same time, thereby meeting various water needs of users at the same time.
[0062] The active carbon filter element 4 is connected in series on the pure water flow channel 62, which can improve the taste of the pure water and the mineral water provided by the composite filter element. It should be noted that this is only a preferred arrangement, which can be adjusted in actual application, for example, in a specific embodiment, the active carbon filter element 4 is not arranged.
[0063] The active carbon filter element 4 is arranged outside the mineralization filter element 3, the gap between the active carbon filter element 4 and the mineralization filter element 3 forms part of the pure water flow channel 62, the side of the active carbon filter element 4 away from the mineralization filter element 3 forms the water inlet of the active carbon filter element 4, and the side of the active carbon filter element 4 towards the mineralization filter element 3 forms the water outlet of the active carbon filter element 4, which can increase the filtering area of the active carbon filter element 4 and ensure the compactness of the active carbon filter element 4 and the mineralization filter element 3, thereby avoiding the composite filter element being too large. It should be noted that this is only a preferred arrangement, which can be adjusted in actual application, for example, the active carbon filter element 4 and the mineralization filter element 3 are arranged adjacent to each other and connected in series.
[0064] The shell 1 is a cylindrical shell, the first mounting area 14 and the second mounting area 15 are arranged in the shell 1 and distributed from the lower end to the upper end of the shell 1, the reverse osmosis filter element 2 is mounted in the first mounting area 14, the second mounting area 15 is provided with the first inner shell 51, the active carbon filter element 4 and the mineralization filter element 3 are arranged in the first inner shell 51; the active carbon filter element 4 comprises an active carbon cylinder 41, both ends of the active carbon cylinder 41 are blocked; the mineralization filter element 3 comprises a shell 31 and mineralization filter material 32 arranged in the shell 31, the inlet of the mineralization filter element 3 is arranged at the side of the shell 31 towards the reverse osmosis filter element 2, and the outlet of the mineralization filter element 3 is arranged at the side towards the upper end of the shell 1, which can ensure the compactness of the whole composite filter element, avoid the composite filter element being too large, and reduce the risk of mineral ions in the mineralization filter element 3 penetrating into the pure water flow channel 62 when the pure water interface 132 and the inlet of the mineralization filter element 3 are both communicated with the outlet end of the pure water flow channel 62. It should be noted that this is only a preferred arrangement, which can be adjusted in actual application, for example, the inlet of the mineralization filter element 3 is arranged at the side of the shell 31 towards the active carbon cylinder 41.
[0065] The first inner shell 51 comprises a cylinder structure 511 extending from the end cover 23 towards the second mounting area 15, and a cover 512 arranged at one end of the cylinder structure 511 away from the end cover 23, the cover 512 being detachably connected with the cylinder structure 511. Thus, the end cover 23 of the reverse osmosis filter core 2 serves as a part of the first inner shell 51, reducing the amount of material used to manufacture the first inner shell 51. When the reverse osmosis filter core 2 is mounted to the outer shell 1, a part of the first inner shell 51 is mounted in place, then the activated carbon filter core 4 and the mineralization filter core 3 are mounted into the first inner shell 51, and finally the cover 512 is mounted, facilitating the dismounting of the activated carbon filter core 4 and the mineralization filter core 3. It should be noted that this is only a relatively preferred arrangement, and in actual application, adjustments can be made, such as the first inner shell 51 being arranged independently of the reverse osmosis filter core 2, and the first inner shell 51 being provided with a through hole communicating with the pure water flow channel 62 and the central pipe 21.
[0066] The water inlet interface 131, the pure water outlet interface 132, the waste water outlet interface 133 and the mineral water outlet interface 134 are arranged on the upper cover 13 of the outer shell 1, so that the connection of the composite filter core and the corresponding pipeline can be conveniently achieved, and the dismounting of the composite filter core and the water purifier can be facilitated. It should be noted that this is only a relatively preferred arrangement, and in actual application, adjustments can be made, such as the pure water outlet interface 132, the waste water outlet interface 133 and the mineral water outlet interface 134 being arranged on the upper cover 13 of the outer shell 1, and the water inlet interface 131 being arranged on the lower cover 12.
[0067] The second mounting area 15 is provided with a second inner shell 52 sleeved on the outer side of the first inner shell 51, and the second inner shell 52 and the first inner shell 51 form a waste water flow channel 63 therebetween, and the second inner shell 52 and the outer shell 1 form a part of the water inlet flow channel 61 therebetween, so that the arrangement of the waste water passage and the water inlet passage in the outer shell is facilitated. It should be noted that this is only a relatively preferred arrangement, and in actual application, adjustments can be made, such as not arranging the second inner shell 52, and the water inlet flow channel 61 and the waste water flow channel 63 being formed by two pipelines respectively.
[0068] In addition, the utility model also provides a kind of water purification system, the water purification system includes water inlet pipeline 71, waste water pipeline 72, pure water pipeline 73, mineral water pipeline 74, as water outlet piece's water outlet nozzle 88 and the composite filter core of first kind of embodiment, the water outlet end of water inlet pipeline 71 is connected with the outer end of water inlet interface 131, the outer end of waste water interface 133 is connected with the water inlet end of waste water pipeline 72, and the outer end of pure water interface 132 and the outer end of mineral water interface 134 are respectively connected to the import of water outlet nozzle 88 by pure water pipeline 73 and mineral water pipeline 74.Water inlet pipeline 71 is successively connected with PPC filter core (the composite filter core formed by pp cotton and activated carbon), water inlet valve 82 and booster pump 83 along the direction of water flow on;Waste water pipeline 72 is connected with waste water valve 84.Pure water pipeline 73 and mineral water pipeline 74 are provided with regulating valve assembly, and valve assembly can be selectively communicated with the import of water outlet nozzle 88 with the outer end of pure water interface 132 and the outer end of mineral water interface 134;Valve assembly can also simultaneously communicate with the import of water outlet nozzle 88 with the outer end of pure water interface 132 and the outer end of mineral water interface 134, and adjust the ratio of the flow of pure water pipeline 73 and the flow of mineral water pipeline 74.Specifically, valve assembly includes pure water outlet valve 85 connected on pure water pipeline 73 and proportional valve 86 and mineral water outlet valve 87 connected on mineral water pipeline 74.By opening pure water outlet valve 85 and mineral water outlet valve 87, and adjusting the opening of proportional valve 86, the ratio of the flow of pure water pipeline 73 and the flow of mineral water pipeline 74 can be adjusted.
[0069] It should be noted that the water purification system has all the technical effects of the composite filter core described in the above embodiments, which will not be repeated here.In addition, when the outer end of pure water interface 132 and the outer end of mineral water interface 134 are simultaneously communicated with the import of water outlet nozzle 88, the ratio of the flow of pure water pipeline 73 and the flow of mineral water pipeline 74 can be adjusted by the valve assembly, so that mineral water of different concentrations is formed and flows out through the water outlet nozzle 88, further meeting the diversified water demand of users.It should be noted that the valve assembly can also include only a pure water outlet valve connected on the pure water pipeline 73 and a mineral water outlet valve connected on the mineral water pipeline 74, and the pure water outlet valve and the mineral water outlet valve are both openable and closable and adjustable.
[0070] In the second embodiment of the utility model, as shown in Figures 7 to 10 Unlike the first embodiment, a one-way valve 311 is arranged at the water inlet of the mineralization filter core 3, and the one-way valve 311 can be communicated in the direction from the outlet end of the pure water flow channel 62 to the inlet of the mineralization filter core 3.
[0071] When the composite filter element of this invention is installed in a water purifier, and the pure water interface 132 is connected to the water outlet of the water purifier via a valve, and the pure water flow rate is relatively low, the water pressure in the part of the pure water flow channel 62 between the mineralized filter element 3 and the activated carbon filter element 4 is insufficient to open the one-way valve 311. At this time, the one-way valve 311 is in a closed state. Figure 8 As shown, the water flow direction inside the composite filter element is as follows: Figure 7 As shown by the arrow in the image.
[0072] When the composite filter element of this invention is installed in a water purifier and connected to the water purifier's outlet via a valve (mineral water interface 134), the pure water interface 132 is not connected to the water purifier's outlet. The water pressure in the portion of the pure water flow channel 62 between the mineralized filter element 3 and the activated carbon filter element 4 causes the one-way valve 311 to open. At this time, the one-way valve 311 is in... Figure 9 As shown, the water flow direction inside the composite filter element is as follows: Figure 9 and Figure 10 As shown by the arrow in the image.
[0073] When the composite filter element of this invention is installed in a water purifier, and is connected to the pure water interface 132 and the mineral water interface 134 respectively through valves to the two water outlets of the water purifier, and the pure water flow rate is relatively large or small, the water pressure in the part of the pure water flow channel 62 between the mineralized filter element 3 and the activated carbon filter element 4 causes the one-way valve 311 to open. At this time, the one-way valve 311 is in a state of... Figure 9 The state shown indicates that the water flow direction within the composite filter element is referenced. Figure 5 The arrow in the image.
[0074] With this design, the composite filter element of this invention can simultaneously provide pure water and mineral water to the outside, thus meeting the user's multiple water needs at the same time. Furthermore, due to the one-way valve, mineral ions from the mineralized filter element can be prevented from permeating into the pure water channel, thereby preventing mineral ions from mixing into the pure water flowing to the pure water interface and ensuring the purity of the pure water flowing out of the interface.
[0075] In another feasible embodiment, unlike the second embodiment, the check valve is replaced with an electrically controlled valve. The electrically controlled valve opens when mineral water is needed and closes otherwise.
[0076] In another feasible embodiment, unlike the second embodiment, the one-way valve is replaced with an electrically controlled valve, and an electrically controlled valve is also provided between the outlet end of the pure water flow channel 62 and the pure water interface 132.
[0077] Furthermore, this utility model also provides a water purification system, which includes the composite filter element of the second embodiment described above. Preferably, apart from the composite filter element, the other structures of the water purification system are the same as those of the water purification system in the first embodiment.
[0078] Thus, the technical scheme of the utility model has been described in combination with the preferred embodiments shown in the drawings, but it is easy for those skilled in the art to understand that the protection scope of the utility model is obviously not limited to these specific embodiments. Those skilled in the art can make equivalent changes or replacements to the related technical features without departing from the principles of the utility model, and the technical schemes after the changes or replacements will all fall within the protection scope of the utility model.
Claims
1. A composite filter cartridge, characterized by, The composite filter element comprises a shell, a reverse osmosis filter element and a mineralization filter element are arranged in the shell, and the shell is provided with a water inlet interface, a pure water outlet interface, a waste water outlet interface and a mineral water outlet interface; the reverse osmosis filter element comprises a water inlet, a pure water outlet and a waste water outlet; The water inlet is communicated with the water inlet interface through a water inlet flow channel, the pure water outlet is communicated with the pure water outlet interface and the inlet of the mineralization filter element through a pure water flow channel, the waste water outlet is communicated with the waste water outlet interface through a waste water flow channel, and the outlet of the mineralization filter element is communicated with the mineral water outlet interface through a mineral water flow channel.
2. The composite filter cartridge of claim 1, wherein, The shell is a cylindrical shell, the shell is provided with a first mounting area and a second mounting area which are distributed from a first end to a second end of the shell, the reverse osmosis filter element is arranged in the first mounting area, and the second mounting area is provided with a first inner shell, and the mineralization filter element is arranged in the first inner shell; A gap between the first inner shell and the mineralization filter element forms the pure water flow channel.
3. The composite filter cartridge of claim 2, wherein, An end of the reverse osmosis filter element close to the second mounting area is provided with an end cover, the first inner shell comprises a barrel structure extending from the end cover to the second mounting area, and a cover body arranged at an end of the barrel structure away from the end cover, and the cover body is detachably connected with the barrel structure.
4. The composite filter cartridge of claim 2 or 3, wherein, The second mounting area is further provided with a second inner shell sleeved on the outer side of the first inner shell, a gap between the second inner shell and the first inner shell forms the waste water flow channel, and a gap between the second inner shell and the shell forms a part of the water inlet flow channel.
5. The composite filter cartridge of any one of claims 1 to 3, wherein, The pure water outlet interface and the inlet of the mineralization filter element are both communicated with the pure water flow channel; or The pure water outlet interface is communicated with the pure water flow channel, and the inlet of the mineralization filter element is connected with the pure water flow channel through a one-way valve, and the one-way valve is communicated in the direction of the inlet of the mineralization filter element along the pure water flow channel; or The pure water outlet interface and the inlet of the mineralization filter element are respectively connected with the pure water flow channel through electric control valves.
6. The composite filter element of claim 2 or 3, wherein, An active carbon filter element is connected in series on the pure water flow channel.
7. The composite filter cartridge of claim 6 wherein, The active carbon filter element is sleeved on the outer side of the mineralization filter element, a side of the active carbon filter element away from the mineralization filter element forms a water inlet of the active carbon filter element, and a side of the active carbon filter element towards the mineralization filter element forms a water outlet of the active carbon filter element.
8. The composite filter cartridge of claim 7, wherein, The active carbon filter element comprises an active carbon barrel, and both ends of the active carbon barrel are blocked. The mineralization filter element comprises a shell and a mineralization filter material arranged in the shell, the inlet of the mineralization filter element is arranged on a side of the shell towards the reverse osmosis filter element, and the outlet of the mineralization filter element is arranged on a side of the shell towards the second end of the shell.
9. The composite filter cartridge of any one of claims 1 to 3, wherein, The water inlet interface, the pure water outlet interface, the waste water outlet interface and the mineral water outlet interface are all arranged on the second end of the shell.
10. A water purification system characterized by, The water purification system comprises a water inlet pipeline, a waste water pipeline, a pure water pipeline, a mineral water pipeline, a water outlet component and the composite filter element of any one of claims 1 to 9, the water outlet end of the water inlet pipeline is connected with the outer end of the water inlet interface, the outer end of the waste water interface is connected with the water inlet end of the waste water pipeline, the outer end of the pure water interface and the outer end of the mineral water interface are respectively connected to the inlet of the water outlet component through the pure water pipeline and the mineral water pipeline; The pure water pipeline and the mineral water pipeline are provided with a regulating valve assembly, the valve assembly can selectively communicate the outer end of the pure water interface and the outer end of the mineral water interface with the inlet of the water outlet component; the valve assembly can also simultaneously communicate the outer end of the pure water interface and the outer end of the mineral water interface with the inlet of the water outlet component, and adjust the ratio of the flow of the pure water pipeline and the flow of the mineral water pipeline.