Filter element assembly and filter system

Abstract

The utility model discloses a filter element assembly and a filtering system. The filter element assembly comprises a pipeline framework and a filter element, the integral filter material is arranged on the outer side of the pipeline framework in a surrounding manner, a dispersed filter material is filled between the integral filter material and the pipeline framework, and the integral filter material and the dispersed filter material are used for filtering fluid. According to the filter element assembly disclosed by the embodiment of the utility model, the original vacant space between the integral filter material and the pipeline framework is utilized, the dispersed filter material is arranged, and the integral filter material and the dispersed filter material are matched, so that the filtering effect of the filter element assembly can be optimized, and in addition, the integral filter material can be used for limiting and shaping the dispersed filter material; and the structure of the filter element assembly is effectively simplified.

Description

Technical Field

[0001] The utility model relates to the technical field of water treatment equipment, in particular to a filter element assembly and a filtration system. Background Art

[0002] The integration of filter elements is the development trend of water purifiers, which can reduce the size of water purifiers and at the same time reduce the frequency of filter element replacement for users. In related technologies, the pre-filter element assembly and the post-filter element assembly of a water purification device are separately arranged, and the same or different filtration functions can be achieved. When a user replaces the filter element assembly, these two filter element assemblies need to be replaced simultaneously, and the operation is relatively complicated. Integrating the pre-filter element assembly and the post-filter element assembly into one filter element assembly to form a front and rear composite filter element, when replacing the front and rear parts, only one filter element assembly needs to be replaced, and at the same time, the size of the water purifier can be reduced. In order to enable the composite filter element to efficiently integrate filter materials in various forms, the internal space of the filter element needs to be fully utilized. Summary of the Utility Model

[0003] An object of the present utility model is to provide a filter element assembly and a filtration system.

[0004] The filter element assembly according to an embodiment of the present utility model includes: a housing assembly; a pipeline skeleton disposed within the housing assembly; an integral filter material disposed around the housing assembly and around the outer side of the pipeline skeleton, with a dispersed filter material filled between the integral filter material and the pipeline skeleton, and the integral filter material and the dispersed filter material are used for filtering fluid.

[0005] The filter element assembly according to an embodiment of the present utility model utilizes the originally empty space between the integral filter material and the pipeline skeleton, disposes the dispersed filter material, and through the cooperation of the integral filter material and the dispersed filter material, can optimize the filtration effect of the filter element assembly. In addition, the integral filter material can be used to limit and shape the dispersed filter material, effectively simplifying the structure of the filter element assembly.

[0006] In addition, the filter element assembly according to the above embodiment of the present utility model may further have the following additional technical features:

[0007] In some embodiments, the filter element assembly further includes a filter screen for blocking the dispersed filter material between the integral filter material and the pipeline skeleton from flowing out.

[0008] In some embodiments, the integral filter material includes a first integral filter material surrounding the pipeline skeleton, a first sub-chamber is provided between the first integral filter material and the pipeline skeleton, a second sub-chamber is provided between the first integral filter material and the housing assembly, and the pipeline skeleton includes a first flow channel communicating with the first sub-chamber and a second flow channel communicating with the second sub-chamber.

[0009] In some embodiments, the first sub-chamber is filled with a dispersion filter medium.

[0010] In some embodiments, the filter element assembly further includes a first filter screen for blocking the dispersion filter medium in the first sub-chamber from flowing out of the first sub-chamber; or, a first filter screen is provided at the inlet end, the outlet end or the interior of the first flow channel for blocking the dispersion filter medium in the first sub-chamber from flowing out of the first sub-chamber.

[0011] In some embodiments, a first interface is provided on the peripheral wall of the pipeline skeleton, and the first interface communicates the first sub-chamber and the first flow channel; or, a second interface is provided at the end of the pipeline skeleton, and the second interface communicates the second sub-chamber and the second flow channel.

[0012] In some embodiments, the housing assembly further includes an inner cylinder and a first end cap. The peripheral wall of the inner cylinder is arranged around the outside of the first integral filter medium to form the second sub-chamber. The first end cap is provided at the end of the pipeline skeleton and forms a third flow channel communicating the second flow channel and the second sub-chamber.

[0013] In some embodiments, the first end cap includes a pipe portion and a cap portion. The pipe portion passes through the second interface, and the cap portion is connected to the pipe portion and forms the third flow channel between the cap portion and the bottom wall of the inner cylinder. The pipe portion communicates the third flow channel and the second flow channel.

[0014] In some embodiments, the integral filter medium further includes a second integral filter medium. The second integral filter medium surrounds the pipeline skeleton and is arranged along the axial direction of the pipeline skeleton and spaced apart from the first integral filter medium. A third sub-chamber is provided between the second integral filter medium and the pipeline skeleton, and a fourth sub-chamber is provided between the second integral filter medium and the housing assembly.

[0015] In some embodiments, the third sub-chamber is filled with a dispersion filter medium.

[0016] In some embodiments, the housing assembly is provided with a first connection port communicating with the fourth sub-chamber; or, the housing assembly is provided with a second connection port communicating with the third sub-chamber; or, the housing assembly is provided with a third interface communicating with the second flow channel; or, the housing assembly is provided with a fourth interface communicating with the first flow channel.

[0017] In some embodiments, the filter element assembly further includes a second filter screen for blocking the dispersion filter medium in the third sub-chamber from flowing out of the third sub-chamber; or, a second filter screen is provided at the inlet end, the outlet end or the interior of the second connection port.

[0018] In some embodiments, the dispersion filter medium is provided to include at least one of a water-soluble filter medium and a water-insoluble filter medium; or, the dispersion filter medium is provided to include at least one of citric acid, baking soda, resin, ore, and scale inhibitor.

[0019] In some embodiments, the pipeline framework is integrally formed.

[0020] In some embodiments, the filter element assembly further includes a flange bracket, the flange bracket is connected to the pipeline framework, and the overall filter medium includes a first overall filter medium disposed on one side of the flange bracket and / or a second overall filter medium disposed on the other side of the flange bracket. The flange bracket and the pipeline framework are of a split structure or an integral structure.

[0021] The filtration system according to an embodiment of the present invention includes the aforementioned filter element assembly. Description of the Drawings

[0022] Figure 1 is a cross-sectional view of a filter element assembly according to an embodiment of the present invention.

[0023] Figure 2 is a cross-sectional view of a filter element assembly according to an embodiment of the present invention, which shows the flow direction of the fluid.

[0024] Reference Signs:

[0025] Filter element assembly 100, housing assembly 10, housing 11, inner cylinder 12, first end cap 13, cover portion 131, pipe portion 132, second end cap 14, flange bracket 33, first overall filter medium 41, second overall filter medium 42, first sub-chamber 51, second sub-chamber 52, third sub-chamber 53, fourth sub-chamber 54, first filter screen 61, second filter screen 62, pipeline framework 70, first flow channel 701, second flow channel 702 Detailed Embodiments

[0026] In the present invention, a pre-filter element assembly and a post-filter element assembly are integrated into a single filter element assembly to form a pre-post composite filter element. In addition to including conventional integral filter media such as PP cotton and carbon rods (non-dispersion filter media such as powders or granules), with the expansion of the filter element functions, there is a further need to composite other filter media such as granular or powdered scale inhibitor filter media, resin filter media, and mineral filter media. The present invention provides a structure of a composite filter element. While composite conventional folded and columnar filter media, it can internally place powder or particulate filter media, realizing the multi-filter medium composite of the filter element.

[0027] Embodiments of the present utility model will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary and are intended to explain the present utility model, and should not be construed as a limitation of the present utility model.

[0028] As Figure 1 , the filter element assembly 100 according to an embodiment of the present utility model includes: a housing assembly 10, a pipeline skeleton 70, and an integral filter medium. The pipeline skeleton 70 and the integral filter medium are disposed inside the housing assembly 10. The integral filter medium is disposed around the outside of the pipeline skeleton 70. A dispersed filter medium is filled between the integral filter medium and the pipeline skeleton 70. The integral filter medium and the dispersed filter medium are used for filtering fluid.

[0029] Among them, the integral filter medium can be disposed upstream of the dispersed filter medium, that is to say, after the fluid is filtered by the integral filter medium, the dispersed filter medium is used for further filtering; or, the integral filter medium can also be disposed downstream of the dispersed filter medium, that is to say, after the fluid is filtered by the dispersed filter medium, the integral filter medium is used for further filtering.

[0030] In the present utility model, the integral filter medium refers to a filter medium formed into an integral structure, which can have a certain shape and plasticity. For example, the integral filter medium can be set to have a fixed structure and cannot be deformed; or, the integral filter medium can also be set to be able to adjust the structure by bending, folding, splicing, etc. The dispersed filter medium refers to a filter medium with a dispersed structure. For example, the dispersed filter medium can be set to a form with an unfixed structure. For example, the dispersed filter medium can be set to a powdery, granular form, etc. The dispersed filter medium with a set mesh number, set material, etc. can be selected according to actual filtration requirements, and the present utility model does not limit this.

[0031] For the filter element assembly 100 according to an embodiment of the present utility model, the space originally vacant between the integral filter medium and the pipeline skeleton 70 is utilized, and the dispersed filter medium is provided. The space between the integral filter medium and the pipeline skeleton 70 is fully utilized, and the cooperation of the integral filter medium and the dispersed filter medium can optimize the filtration effect of the filter element assembly 100. In addition, the integral filter medium can be used to limit and shape the dispersed filter medium, effectively simplifying the structure of the filter element assembly 100.

[0032] The filter element assembly 100 further includes a filter screen for blocking the dispersed filter medium between the integral filter medium and the pipeline skeleton 70 from flowing out. The dispersed filter medium can be prevented from flowing out through the filter screen, so as to improve the filtration effect of the filter element assembly 100, reduce the loss of the filter medium, and extend the service life of the filter element assembly 100.

[0033] The filter element assembly 100 in the present utility model may include, but is not limited to, the following embodiments.

[0034] Embodiment 1

[0035] As Figure 1 , the overall filter medium includes a first overall filter medium 41, the first overall filter medium 41 is disposed around the outside of the pipeline skeleton 70, a first sub-chamber 51 is provided between the first overall filter medium 41 and the pipeline skeleton 70, and a dispersion filter medium can be filled in the first sub-chamber 51. A second sub-chamber 52 is provided between the first overall filter medium 41 and the housing assembly 10. The pipeline skeleton 70 includes a first flow channel 701 and a second flow channel 702. The first flow channel 701 communicates with the first sub-chamber 51, and the second flow channel 702 communicates with the second sub-chamber 52. The fluid can be filtered through the first overall filter medium 41 and the dispersion filter medium in the first sub-chamber 51.

[0036] Optionally, the first flow channel 701 can be used as the water outlet flow channel, and the second flow channel 702 can be used as the water inlet flow channel. The first sub-chamber 51 and the second sub-chamber 52 are respectively provided on the inner and outer sides of the first overall filter medium 41. The fluid can flow into the second sub-chamber 52 through the second flow channel 702, and after being filtered by the first overall filter medium 41 and the dispersion filter medium provided inside the first overall filter medium 41, it flows out through the first flow channel 701 to realize the filtration of the fluid. By means of radial filtration, the filtration area can be effectively increased, thereby increasing the flow rate and reducing the size and volume of the filter element assembly 100. Of course, in the present utility model, the first flow channel 701 can also be used as the water inlet flow channel and the second flow channel 702 can be used as the water outlet flow channel, and the present utility model does not make any limitation thereto.

[0037] In some examples, a first interface is provided on the peripheral wall of the pipeline skeleton 70, and the first interface communicates the first sub-chamber 51 and the first flow channel 701. In addition, a second interface is provided at the end of the pipeline skeleton 70, and the second interface communicates the second sub-chamber 52 and the second flow channel 702. By providing the first interface and the second interface, it is possible to conveniently send the fluid from the second flow channel 702 to the second sub-chamber 52 for filtration by the first overall filter medium 41 and the dispersion filter medium in the first sub-chamber 51, and after the filtration is completed, it is sent into the first flow channel 701 through the first interface, so as to supply the water filtered by the first overall filter medium 41 and the dispersion filter medium in the first sub-chamber 51, which can simplify the structure of the filter element assembly 100 and simplify the flow path in the filter element assembly 100, and improve the filtration efficiency and effect.

[0038] In some examples, the housing assembly 10 further includes an inner cylinder 12. The peripheral wall of the inner cylinder 12 is disposed around the outside of the first overall filter medium 41 to construct the second sub-chamber 52. A first accommodation cavity can be formed between the inner cylinder 12 and the pipeline skeleton 70. The first overall filter medium 41 can be disposed in the first accommodation cavity, and the first sub-chamber 51 and the second sub-chamber 52 are separated in the first accommodation cavity. The first sub-chamber 51 is provided with a dispersion filter medium, and the first overall filter medium 41 can be set to a columnar shape or other shapes.

[0039] The housing assembly 10 further includes a first end cap 13. The first end cap 13 is provided at the end of the pipeline framework 70 and constructs a third flow channel communicating the second flow channel 702 and the second subchamber 52. The communication between the second flow channel 702 of the pipeline framework 70 and the second subchamber 52 can be realized through the first end cap 13, which is convenient for guiding the fluid to flow from the pipeline framework 70 into the second subchamber 52. The pipeline can be optimized to facilitate the filtration of the fluid.

[0040] Wherein, the first end cap 13 may include a pipe portion 132 and a cap portion 131. The pipe portion 132 penetrates through the second interface, and the cap portion 131 is connected to the pipe portion 132 and constructs a third flow channel with the bottom wall of the inner cylinder 12. The pipe portion 132 communicates the third flow channel and the second flow channel 702. Thus, the structure of the third flow channel is simplified. In addition, the first end cap 13 can be arranged to facilitate the positioning of the first integral filter medium 41 and optimize the overall structure of the filter element assembly 100.

[0041] In addition, the filter element assembly 100 may further include a flange bracket 33. The flange bracket 33 is connected to the pipeline framework 70 and is axially opposite to the first end cap 13 along the pipeline framework 70. On one side of the flange bracket 33 facing the first end plate and on one side of the first end plate facing the flange bracket 33, positioning grooves surrounding the pipeline framework 70 are provided. The two ends of the first integral filter medium 41 are respectively positioned in the positioning grooves, thereby realizing the positioning of the first integral filter medium 41. At the same time, the first subchamber 51 and the second subchamber 52 are separated to facilitate the fluid to be filtered through the first integral filter medium 41.

[0042] In some examples, the filter element assembly 100 further includes a first filter screen 61 for blocking the dispersed filter medium in the first subchamber 51 from flowing out of the first subchamber 51; or, a first filter screen 61 is provided at the inlet end, the outlet end or the inside of the first flow channel 701 for blocking the dispersed filter medium in the first subchamber 51 from flowing out of the first subchamber 51. The first filter screen 61 can block the dispersed filter medium in the first subchamber 51, prevent the dispersed filter medium in the first subchamber 51 from flowing out, and extend the filtration effect and service life of the filter element assembly 100.

[0043] Wherein, a first filter screen 61 can be provided at the inlet end of the first flow channel 701. The inlet of the first flow channel 701 can be provided on the circumferential surface of the pipeline framework 70. In this way, the blocking effect on the dispersed filter medium in the first subchamber 51 can be ensured, and the leakage of the dispersed filter medium in the first subchamber 51 can be effectively prevented. In addition, a first filter screen 61 can be provided at the outlet end of the first flow channel 701, and the first flow channel 701 can also be filled with the dispersed filter medium, which can effectively increase the filling amount of the dispersed filter medium and improve the filtration effect on the fluid. A first filter screen 61 can also be provided in the first flow channel 701. In addition, a first filter screen 61 can be provided at multiple locations among the inlet end, the outlet end and the inside of the first flow channel 701 to achieve redundant protection.

[0044] Embodiment 2

[0045] As Figure 1 , the integral filter medium includes a first integral filter medium 41. The first integral filter medium 41 is disposed around the outside of the pipeline framework 70. A first sub-chamber 51 filled with dispersed filter medium is provided between the first integral filter medium 41 and the pipeline framework 70. A second sub-chamber 52 is provided outside the first integral filter medium 41. The pipeline framework 70 includes a first flow channel 701 communicating with the first sub-chamber 51 and a second flow channel 702 communicating with the second sub-chamber 52.

[0046] In addition, the integral filter medium further includes a second integral filter medium 42. The second integral filter medium 42 is disposed around the outside of the pipeline framework 70. A third sub-chamber 53 is provided between the second integral filter medium 42 and the pipeline framework 70. A fourth sub-chamber 54 is provided outside the second integral filter medium 42. The third sub-chamber 53 can be connected to the second flow channel 702. In this way, the fluid can be introduced into the fourth sub-chamber 54, and after being filtered by the second integral filter medium 42, it enters the second flow channel 702, and then is sent to the second sub-chamber 52 through the second flow channel 702, and after being filtered by the first integral filter medium 41 and the dispersed filter medium in the first sub-chamber 51, it is sent out from the first flow channel 701 to achieve multi-stage filtration.

[0047] Embodiment 3

[0048] The integral filter medium includes a second integral filter medium 42. The second integral filter medium 42 is disposed around the outside of the pipeline framework 70. A third sub-chamber 53 is provided between the second integral filter medium 42 and the pipeline framework 70. The third sub-chamber 53 can be filled with dispersed filter medium. A fourth sub-chamber 54 is provided between the second integral filter medium 42 and the second integral filter medium 42. The fluid can be filtered by the second integral filter medium 42 and the dispersed filter medium in the third sub-chamber 53.

[0049] Among them, the second integral filter medium 42 and the first integral filter medium 41 can be arranged axially along the pipeline framework 70 and separated. Among them, the filter element assembly 100 can include a flange bracket. The second integral filter medium 42 and the first integral filter medium 41 are respectively disposed on both sides of the flange bracket.

[0050] Optionally, the fourth sub-chamber 54 can be used as the water inlet chamber, and the third sub-chamber 53 can be used as the water outlet chamber. The fluid can be introduced into the fourth sub-chamber 54, and after being filtered by the second integral filter medium 42, it is introduced into the third sub-chamber 53, and after being filtered by the dispersed filter medium in the third sub-chamber 53, it is sent out. Thus, filtration is achieved by using the second integral filter medium 42 and the dispersed filter medium in the third sub-chamber 53. By means of radial filtration, the filtration area can be effectively increased, thereby increasing the flow rate and reducing the size and volume of the filter element assembly 100. Of course, in the present utility model, the fourth sub-chamber 54 can also be used as the water outlet chamber, and the third sub-chamber 53 can be used as the water inlet chamber.

[0051] In some examples, a third interface is provided at the axial end of the third subchamber 53 along the pipeline framework 70. In some examples, a fourth interface is provided at the axial end of the fourth subchamber 54 along the pipeline framework 70. In this way, fluid can be introduced axially into the fourth interface, or after passing through the second integral filter medium 42 and the dispersion filter medium in the third subchamber 53 for filtration, it can be sent out axially from the third interface, so as to facilitate the introduction and discharge of fluid. The fluid is arranged to enter and exit the third subchamber 53 and the fourth subchamber 54 axially, which can conveniently reduce the radial size of the filter element assembly 100, or rather, can increase the filtration efficiency of the filter element assembly 100.

[0052] In some examples, the filter element assembly 100 further includes a second filter screen 62 for blocking the dispersion filter medium in the third subchamber 53 from flowing out of the third subchamber 53. The second filter screen 62 can block the dispersion filter medium in the third subchamber 53 to prevent the dispersion filter medium in the third subchamber 53 from flowing out, and extend the filtration effect and service life of the filter element assembly 100.

[0053] In some embodiments, the housing assembly 10 further includes a housing 11. The second integral filter medium 42 is arranged inside the housing 11, and the fourth subchamber 54 is arranged between the second integral filter medium 42 and the housing 11. Among them, the housing 11 can form a second accommodation cavity with the pipeline flow channel. The second integral filter medium 42 can be arranged in the second accommodation cavity and divide the third subchamber 53 and the fourth subchamber 54 in the second accommodation cavity. Among them, the second integral filter medium 42 can be arranged in a columnar shape or other shapes.

[0054] Combined with the foregoing embodiment, the filter element assembly 100 can have a first accommodation cavity and a second accommodation cavity, which are separated by the flange bracket 33.

[0055] The housing assembly 10 further includes a second end cap 14 and a flange bracket 33. The flange bracket 33 is connected to the pipeline framework 70 and is axially opposite to the second end cap 14 along the pipeline framework 70. On the side of the flange bracket 33 facing the second end cap 14 and on the side of the second end cap 14 facing the flange bracket 33, positioning grooves surrounding the pipeline framework 70 are provided. The two ends of the second integral filter medium 42 are respectively positioned in the positioning grooves, so as to realize the positioning of the second integral filter medium 42. At the same time, the third subchamber 53 and the fourth subchamber 54 are separated, so that fluid can pass through the first integral filter medium 41 for filtration.

[0056] Embodiment 4

[0057] The integral filter medium includes a second integral filter medium 42. The second integral filter medium 42 is arranged around the outside of the pipeline framework 70. A third subchamber 53 filled with dispersion filter medium is provided between the second integral filter medium 42 and the pipeline framework 70, and a fourth subchamber 54 is provided outside the second integral filter medium 42.

[0058] In addition, the overall filter medium further includes a first overall filter medium 41 which is disposed around the outer side of the pipeline framework 70. A first sub-chamber 51 is provided between the first overall filter medium 41 and the pipeline framework 70, and a second sub-chamber 52 is provided on the outer side of the first overall filter medium 41. The third sub-chamber 53 can be connected to the second sub-chamber 52. In this way, the fluid can be introduced into the fourth sub-chamber 54, and after being filtered by the second overall filter medium 42, it enters the third sub-chamber 53, and is filtered by the dispersion filter medium in the third sub-chamber 53 and then sent to the second sub-chamber 52. After being filtered by the first overall filter medium 41, it is sent into the first sub-chamber 51 and finally sent out from the first sub-chamber 51 to achieve multi-stage filtration.

[0059] Embodiment Five

[0060] As Figure 1 and Figure 2 , the overall filter medium includes a first overall filter medium 41 and a second overall filter medium 42. The first overall filter medium 41 is disposed around the outer side of the pipeline framework 70, and the second overall filter medium 42 is disposed around the outer side of the pipeline framework 70. A first sub-chamber 51 filled with dispersion filter medium is provided between the first overall filter medium 41 and the pipeline framework 70, and a third sub-chamber 53 filled with dispersion filter medium is provided between the second overall filter medium 42 and the pipeline framework 70. A second sub-chamber 52 is provided on the outer side of the first overall filter medium 41, and a fourth sub-chamber 54 is provided on the outer side of the second overall filter medium 42. The pipeline framework 70 includes a first flow channel 701 communicating with the first sub-chamber 51 and a second flow channel 702 communicating with the second sub-chamber 52.

[0061] The housing assembly 10 further includes a housing 11, an inner cylinder 12, a first end cap 13, and a second end cap 14. The filter element assembly 100 further includes a flange bracket 33. The first end cap 13, the flange bracket 33, and the second end cap 14 are arranged at intervals along the circumferential direction of the pipeline framework 70. The first overall filter medium 41 is positioned between the first end cap 13 and the flange bracket 33, and the second overall filter medium 42 is positioned between the second end cap 14 and the flange bracket 33. The inner cylinder 12 is provided on the outer side of the first overall filter medium 41, and the pipeline framework 70, the first end cap 13, the second end cap 14, the flange bracket 33, the inner cylinder 12, the first overall filter medium 41, the second overall filter medium 42, etc. are disposed inside the housing 11.

[0062] The inner cylinder 12 can be configured with one end closed and the other end open. The open end of the inner cylinder 12 is connected to the flange bracket 33, and a closed space can be formed between the inner cylinder 12 and the flange bracket 33. A sealing structure can be adopted at the connection between the inner cylinder 12 and the flange bracket 33. The first end plate and the first integral filter medium are arranged inside the inner cylinder 12. The outer shell 11 can include a shell part, an end cover, and an interface part. The shell part is disposed around the outside of the pipeline framework. The first integral filter medium and the second integral filter medium can be arranged inside the shell part. The end cover can be connected to one end of the first integral filter medium, and the first integral filter medium is closer to the end cover than the second integral filter medium. The end cover can be provided with a handle and can be configured to be integral or separate from the shell part. The interface part is arranged at the other end of the shell part.

[0063] Among them, an inlet and an outlet can be arranged at one end of the outer shell 11. The fluid can be introduced into the outer shell 11 from the inlet, pass through the second end cover 14, and enter the fourth sub-chamber 54 outside the second integral filter medium 42. After being filtered by the second integral filter medium 42 and the dispersion filter medium located in the third sub-chamber 53, it is sent out of the third sub-chamber 53, and then enters the second sub-chamber 52 outside the first integral filter medium 41 through the second flow channel 702 arranged in the pipeline framework 70. After being filtered by the first integral filter medium 41 and the dispersion filter medium located in the first sub-chamber 51, it is sent out of the first sub-chamber 51 and sent to the outlet through the first flow channel 701 arranged in the pipeline framework 70, thereby realizing multi-stage filtration of the fluid.

[0064] Among them, in the aforementioned filtration flow path, the fluid can enter the second flow channel 702 from the third sub-chamber 53. Among them, a flow channel can be arranged at the end of the outer shell 11 to realize the connection between the third sub-chamber 53 and the second flow channel 702, or a first communication port and a second communication port can be arranged on the outer shell 11. The first communication port is connected to the third sub-chamber 53, and the second communication port is connected to the second flow channel 702. In this way, the connection between the third sub-chamber 53 and the second flow channel 702 can be realized through the connection of the third communication port and the fourth communication port.

[0065] In addition, the outer shell assembly 10 is provided with a first connection port communicating with the fourth sub-chamber 54; or, the outer shell assembly 10 is provided with a second connection port communicating with the third sub-chamber 53; or, the outer shell assembly 10 is provided with a third interface communicating with the second flow channel 702; or, the outer shell assembly 10 is provided with a fourth interface communicating with the first flow channel 701. The water from the water source can be introduced into the outer shell assembly 10 through the first connection port, enter the fourth sub-chamber 54, then enter the third sub-chamber 53 after being filtered by the second integral filter medium and the dispersion filter medium, and then be sent out through the second connection port. After being pressurized by a pressure pump, it is sent into the second flow channel 702 through the third interface, then enters the second sub-chamber, enters the first sub-chamber after being filtered by the first integral filter medium and the dispersion filter medium, and finally is sent out from the fourth interface through the first flow channel.

[0066] Among them, the outer shell assembly 10 includes a first positioning rib. The second end of the pipeline framework 30 passes through the first positioning rib, and the fourth connection port communicates with the inner space of the first positioning rib. The second end of the pipeline framework 30 can be positioned by the first positioning rib, and the second interface of the pipeline framework 30 communicates with the inner space of the first positioning rib.

[0067] The outer shell assembly 10 further includes a second positioning rib. The second positioning rib surrounds the first positioning rib. The pipeline framework 30 includes a main body portion and a second joint distributed along the axis. The second joint is connected to the second end of the main body portion. The second joint passes through the first positioning rib, and the second end of the main body portion passes through the second positioning rib. A first interface is formed between the main body portion and the second joint and communicates with the space between the first positioning rib and the second positioning rib. The third connection port communicates with the space between the first positioning rib and the second positioning rib. The second end of the pipeline framework 30 can be positioned by the first positioning rib and the second positioning rib, and the isolation of the water flow before and after filtration can be realized to optimize the filtration effect. In addition, the circumferential distribution of the main body portion and the second joint facilitates the formation of the first interface.

[0068] The outer shell assembly 10 further includes a third positioning rib. The third positioning rib surrounds the second positioning rib, and the space between the third positioning rib and the second positioning rib communicates with the third sub-chamber and the second connection port. The filtration effect can be further optimized.

[0069] The outer shell assembly 10 further includes a housing. The third positioning rib is arranged inside the housing, and the space between the third positioning rib and the housing communicates with the first connection port and the fourth sub-chamber.

[0070] Among them, in combination with the foregoing examples, the second filter screen 62 can be arranged at the inlet end, the outlet end or the inside of the second connection port, or can be arranged downstream of the third interface.

[0071] In some embodiments, the dispersed filter material is provided to include at least one of a water-soluble filter medium and a water-insoluble filter medium; or, the dispersed filter material is provided to include at least one of citric acid, baking soda, resin, ore and scale inhibitor.

[0072] Optionally, the pipeline framework 70 is integrally formed. The structure of the pipeline framework 70 can be simplified, and the stability of the pipeline assembly can be improved. The pipeline framework 70 may include a first flow channel 701 and a second flow channel 702. One end of the first flow channel 701 is provided at the end face of the first end of the pipeline flow channel, and one end of the second flow channel 702 is provided at the end face of the second end of the pipeline flow channel. The other end of the first flow channel 701 is provided on the circumferential surface of the second end of the pipeline flow channel, and the other end of the second flow channel 702 is provided on the circumferential surface of the first end of the pipeline flow channel. Wherein, the pipeline framework 70 can be set in a long strip shape, and a flange bracket 33 is connected to the outer circumferential surface of the pipeline framework 70. The flange bracket 33 is arranged between the other end of the first flow channel 701 and the other end of the second flow channel 702. Wherein, the first flow channel 701 is tapered from one end to the other end, and the second flow channel 702 is tapered from one end to the other end to facilitate the demolding of the pipeline framework 70.

[0073] In addition, the pipeline framework may include a first half shell, a second half shell and an intermediate shell. The first half shell and the second half shell are respectively connected to opposite sides of the intermediate shell. A first flow channel is formed between the first half shell and the intermediate shell, and a second flow channel is formed between the second half shell and the intermediate shell. The cross section of the first half shell can be set as an arc shape, the cross section of the second half shell can be set as an arc shape, the cross section of the intermediate shell can be set as a straight line shape, and the radial dimensions of the first half shell and the second half shell can be the same or different.

[0074] In some embodiments, the filter element assembly 100 further includes a flange bracket 33. The flange bracket 33 is connected to the pipeline framework 70, and the overall filter medium includes a first overall filter medium 41 provided on one side of the flange bracket 33 and / or a second overall filter medium 42 provided on the other side of the flange bracket 33. The flange bracket 33 and the pipeline framework 70 are of a split structure or an integral structure. Combining the foregoing embodiments, the filter element assembly 100 may include a first end cap 13. The first end cap 13 can be axially opposite to the flange bracket 33, and the first overall filter medium 41 can be positioned between the first end cap 13 and the flange bracket 33. In addition, the filter element assembly 100 may further include a second end cap 14. The second end cap 14 can be axially opposite to the flange bracket 33, and the second overall filter medium 42 is arranged between the second end cap 14 and the flange bracket 33.

[0075] The filtration system according to the embodiment of the present invention includes the aforementioned filter element assembly 100.

[0076] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically defined.

[0077] In the present utility model, unless otherwise clearly specified or limited, terms such as "installation", "connection", "coupling", "fixation", etc. shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral body; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two elements or the interaction relationship between two elements, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0078] In the present utility model, unless otherwise clearly specified or limited, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0079] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples", etc. means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0080] Although the embodiments of the present utility model have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present utility model. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present utility model.

Claims

1. A filter element assembly (100), characterized in that: include: Housing assembly (10); A pipeline skeleton (70), wherein the pipeline skeleton (70) is arranged in the housing component (10); An integral filter material is arranged in the housing component (10) and surrounds the pipeline skeleton (70); a dispersed filter material is filled between the integral filter material and the pipeline skeleton (70); the integral filter material and the dispersed filter material are used for filtering fluid.

2. The filter element assembly (100) according to claim 1, characterized in that: The filter element assembly (100) further comprises a filter screen for preventing the dispersed filter material between the integral filter material and the pipeline skeleton (70) from flowing out.

3. The filter element assembly (100) according to claim 1 or 2, characterized in that: The integral filter material comprises a first integral filter material (41), the first integral filter material (41) surrounds the pipeline skeleton (70), a first sub-cavity (51) is provided between the first integral filter material (41) and the pipeline skeleton (70), a second sub-cavity (52) is provided between the first integral filter material (41) and the housing assembly (10), and the pipeline skeleton (70) comprises a first flow channel (701) connected to the first sub-cavity (51) and a second flow channel (702) connected to the second sub-cavity (52).

4. The filter element assembly (100) according to claim 3, characterized in that: The first sub-cavity (51) is filled with dispersed filter material.

5. The filter element assembly (100) according to claim 4, characterized in that: The filter element assembly (100) further comprises a first filter screen (61) for preventing the dispersed filter material in the first sub-cavity (51) from flowing out of the first sub-cavity (51); or, a first filter screen (61) is provided at the inlet end of the first flow channel (701), the outlet end of the first flow channel (701) or the interior of the first flow channel (701) for preventing the dispersed filter material in the first sub-cavity (51) from flowing out of the first sub-cavity (51).

6. The filter element assembly (100) according to claim 3, characterized in that: A first interface is provided on the peripheral wall of the pipeline skeleton (70), and the first interface connects the first sub-cavity (51) and the first flow channel (701); or a second interface is provided at the end of the pipeline skeleton (70), and the second interface connects the second sub-cavity (52) and the second flow channel (702).

7. The filter element assembly (100) according to claim 6, characterized in that: The housing assembly (10) further comprises an inner tube (12) and a first end cover (13); the peripheral wall of the inner tube (12) surrounds the outer side of the first integral filter material (41) to form the second sub-cavity (52); the first end cover (13) is arranged at the end of the pipeline skeleton (70) and forms a third flow channel connecting the second flow channel (702) and the second sub-cavity (52).

8. The filter element assembly (100) according to claim 7, characterized in that: The first end cover (13) comprises a tube portion (132) and a cover portion (131); the tube portion (132) is inserted into the second interface; the cover portion (131) is connected to the tube portion (132) and forms the third flow channel with the bottom wall of the inner tube (12); the tube portion (132) connects the third flow channel and the second flow channel (702).

9. The filter element assembly (100) according to claim 3, characterized in that: The integral filter material further comprises a second integral filter material (42), the second integral filter material (42) surrounds the pipeline skeleton (70), and is arranged and separated from the first integral filter material (41) along the axial direction of the pipeline skeleton (70), a third sub-cavity (53) is provided between the second integral filter material (42) and the pipeline skeleton (70), and a fourth sub-cavity (54) is provided between the second integral filter material (42) and the housing assembly (10).

10. The filter element assembly (100) according to claim 9, characterized in that: The third sub-chamber (53) is filled with dispersed filter material.

11. The filter element assembly (100) according to claim 9, characterized in that: The shell component (10) is provided with a first connection port connected to the fourth sub-cavity (54); or, the shell component (10) is provided with a second connection port connected to the third sub-cavity (53); or, the shell component (10) is provided with a third interface connected to the second flow channel (702); or, the shell component (10) is provided with a fourth interface connected to the first flow channel (701).

12. The filter element assembly (100) according to claim 11, characterized in that: The filter element assembly (100) further comprises a second filter screen (62) for preventing the dispersed filter material in the third sub-cavity (53) from flowing out of the third sub-cavity (53); or a second filter screen (62) is provided at the inlet end, outlet end or inside of the second connecting port.

13. The filter element assembly (100) according to claim 1, characterized in that: The pipeline skeleton (70) is integrally formed.

14. The filter element assembly (100) according to claim 1, characterized in that: The filter element assembly (100) further comprises a flange bracket (33), wherein the flange bracket (33) is connected to the pipeline skeleton (70), and the integral filter material comprises a first integral filter material (41) arranged on one side of the flange bracket (33) and / or a second integral filter material (42) arranged on the other side of the flange bracket (33), and the flange bracket (33) and the pipeline skeleton (70) are of a split structure or an integrated structure.

15. A filtering system, characterized in that: It comprises the filter element assembly (100) according to any one of claims 1 to 14.

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