Framework device of filter element assembly, filter element assembly and filtering system

Abstract

The utility model discloses a skeleton device of filter element subassembly, filter element subassembly and filtration system.The skeleton device comprises a first side wall, a second side wall and a middle wall, the first side wall, the second side wall and the middle wall extend along the axis of skeleton pipe body, a first flow channel is arranged between the first side wall and the middle wall, and a second flow channel is arranged between the second side wall and the middle wall; a second flow channel is arranged between the second side wall and the middle wall. According to the framework device of the filter element assembly, the first flow channel and the second flow channel which are separated from each other are constructed on the framework pipe body, so that the two flow channels can be integrated into the same part, the framework device is convenient to manufacture and assemble, the structure of the filter element assembly is simplified, and the filling space of a filter material in the filter element assembly is increased.

Description

Technical Field

[0001] The utility model relates to the technical field of water treatment equipment, in particular to a skeleton device of a filter element assembly, a filter element assembly with the skeleton device, and a filtration system with the skeleton assembly or the filter element assembly. 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 by users. In related technologies, the pre-filter element assembly and the post-filter element assembly of the water purification device are separately arranged, and the same or different filtration functions can be realized. When the user replaces the filter element assembly, both filter element assemblies need to be replaced simultaneously, and the operation is relatively complex. 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 related technologies, multiple components are usually required to separate the flow channels in the up and down combination of the front and rear parts. Summary of the Utility Model

[0003] The utility model aims to solve at least one of the technical problems in related technologies to some extent. For this reason, an object of the utility model is to provide a skeleton device of a filter element assembly.

[0004] Another object of the utility model is to provide a filter element assembly including the aforementioned skeleton device.

[0005] Another object of the utility model is to provide a filtration system including the aforementioned filter element assembly.

[0006] According to an embodiment of the utility model, the skeleton device of the filter element assembly includes a skeleton tube body, the skeleton tube body includes a first side wall, a second side wall and a middle wall, the first side wall, the second side wall and the middle wall extend along the axis of the skeleton tube body, a first flow channel is formed between the first side wall and the middle wall, and a second flow channel is formed between the second side wall and the middle wall.

[0007] According to the embodiment of the utility model, by constructing the mutually separated first flow channel and second flow channel on the skeleton tube body, the two flow channels can be integrated into the same component, which is convenient for manufacturing and assembly and is beneficial to simplifying the structure of the filter element assembly.

[0008] In addition, the skeleton device of the filter element assembly according to the above embodiment of the utility model may further have the following additional technical features:

[0009] In some examples of the utility model, the first side wall and the second side wall are asymmetrically distributed with respect to the middle wall.

[0010] In some examples of the present utility model, the arch height of the first side wall is H1, and the arch height of the second side wall is H2, where H1 > H2; the first side wall is configured as an arc with a radius of R1, and the second side wall is configured as an arc with a radius of R2, where R1 < R2.

[0011] In some examples of the present utility model, the arch height of the first side wall is not less than 4.5 millimeters; the arch height of the second side wall is not less than 3.5 millimeters.

[0012] In some examples of the present utility model, the inscribed circle diameter of the first side wall is greater than 7 millimeters, and the inscribed circle diameter of the second side wall is greater than 11 millimeters.

[0013] In some examples of the present utility model, the first side wall and the second side wall are symmetrically distributed with respect to the middle wall.

[0014] In some examples of the present utility model, the first side wall is provided as a semi - circle; the second side wall is provided as a semi - circle, and the first side wall and the second side wall cooperate to form a circle.

[0015] In some examples of the present utility model, the arch height of the first side wall is H1, and the arch height of the second side wall is H2, where H1 = H2; the first side wall is configured as an arc with a radius of R1, and the second side wall is configured as an arc with a radius of R2, where R1 = R2.

[0016] In some examples of the present utility model, the arch height of the first side wall is equal to the arch height of the second side wall and is not less than 4 millimeters.

[0017] In some examples of the present utility model, the inscribed circle diameters of the first side wall and the second side wall are equal and are not less than 9 millimeters.

[0018] In some examples of the present utility model, the wall thicknesses of the first side wall and the second side wall are not less than 1.6 millimeters.

[0019] In some examples of the present utility model, the first side wall and the second side wall are respectively connected to opposite sides of the middle wall.

[0020] In some examples of the present utility model, the cross - sectional area of the first flow channel is not less than 30 square millimeters.

[0021] In some examples of the present utility model, the cross - sectional area of the second flow channel is not less than 30 square millimeters.

[0022] In some examples of the present utility model, the skeleton pipe body is integrally formed.

[0023] In some examples of the present utility model, the first flow channel and the second flow channel are separated from each other within the framework tube body.

[0024] A filter element assembly according to an embodiment of the present utility model includes: a housing, the aforementioned framework device, a first integral filter medium, and a dispersed filter medium. The framework device is disposed within the housing. A first accommodation cavity is formed between the housing and the framework tube body. The first integral filter medium is disposed within the first accommodation cavity. The first integral filter medium is disposed around the outer periphery of the framework tube body. A first cavity is constructed between the outer peripheral surface of the first integral filter medium and the housing. A second cavity is constructed between the inner peripheral surface of the first integral filter medium and the framework tube body. The dispersed filter medium is disposed within the second cavity.

[0025] The filter element assembly according to an embodiment of the present utility model can make full use of the space between the first integral filter medium and the framework device, and by utilizing the cooperation of the first integral filter medium and the dispersed filter medium, the filtering effect of the filter element assembly can be optimized.

[0026] In some examples of the present utility model, the dispersed filter medium is provided as including at least one of a water-soluble filter medium and a water-insoluble filter medium; or, the dispersed filter medium is provided as including at least one of citric acid, baking soda, resin, ore, and scale inhibitor.

[0027] A filtration system according to an embodiment of the present utility model includes the framework device of the filter element assembly described above or the filter element assembly described above. Description of the Drawings

[0028] Figure 1 is a cross-sectional view of the framework device in some embodiments of the present utility model;

[0029] Figure 2 is a cross-sectional view of the framework device in some embodiments of the present utility model (showing the first side wall, the second side wall, and the intermediate wall);

[0030] Figure 3 is a cross-sectional view of the framework device in some embodiments of the present utility model (showing the state where the first side wall and the second side wall are asymmetrically distributed with respect to the intermediate wall);

[0031] Figure 4 is a partial structural schematic diagram of the framework device in some embodiments of the present utility model (showing the state where the first side wall and the second side wall are symmetrically distributed with respect to the intermediate wall);

[0032] Figure 5 is a structural schematic diagram of the framework device in some embodiments of the present utility model;

[0033] Figure 6 is a structural schematic diagram of the framework device in some embodiments of the present utility model;

[0034] Figure 7 is a cross-sectional view of a filter element assembly according to an embodiment of the present utility model;

[0035] Figure 8 is a cross-sectional view of a filter element assembly according to an embodiment of the present utility model, showing the flow direction of the fluid in the first accommodation chamber;

[0036] Figure 9 is a cross-sectional view of a filter element assembly according to an embodiment of the present utility model, showing the flow direction of the fluid in the second accommodation chamber.

[0037] Reference numerals:

[0038] 100, skeleton device; 10, skeleton tube body; 110, first flow channel; 120, second flow channel; 130, third flow channel; 111, first joint; 112, second joint; 115, first side wall; 116, second side wall; 117, intermediate wall; 20, flange; 200, housing; 201, first chamber; 202, second chamber; 203, third chamber; 204, fourth chamber; 210, first accommodation chamber; 220, second accommodation chamber; 300, inner cylinder; 410, first integral filter medium; 420, second integral filter medium; 510, first end cap; 520, second end cap; 1000, filter element assembly. Detailed implementation manners

[0039] The embodiments of the present utility model will be described in detail below. Examples of the embodiments are shown in the drawings, where the same or similar reference numerals indicate the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are intended to explain the present utility model, and should not be construed as limiting the present utility model.

[0040] Combined with Figure 1 and Figure 5, The skeleton device 100 of the filter element assembly 1000 according to an embodiment of the present utility model includes a skeleton tube body 10. The skeleton tube body 10 includes a first side wall 115, a second side wall 116, and an intermediate wall 117 that extend along the axis. The second side wall 116 and the intermediate wall 117 extend along the axis of the skeleton tube body 10. There is a first flow channel 110 between the first side wall 115 and the intermediate wall 117, and a second flow channel 120 between the second side wall 116 and the intermediate wall 117. Specifically, one of the first flow channel 110 and the second flow channel 120 can be an inlet water flow channel and the other can be an outlet water flow channel, and the first flow channel 110 and the second flow channel 120 extend along the axis, which is beneficial to extending the flow path. During application, water can enter the filtering space from the inlet water flow channel for filtering and flow out from the outlet water flow channel after filtering. The first flow channel 110 and the second flow channel 120 can be constructed on the skeleton tube body 10 to be separated from each other. Integrating the two flow channels into the same component can facilitate manufacturing and assembly and is beneficial to simplifying the structure of the filter element assembly 1000.

[0041] Further, in combination with Figure 2 and 5 , the first side wall 115 and the second side wall 116 are asymmetrically distributed with respect to the intermediate wall 117. When the first side wall 115 and the second side wall 116 are asymmetric, for example, the space occupied by the first side wall 115 is smaller than that of the second side wall 116, the space area that the first side wall 115 can increase compared with the second side wall 116 is such as Figure 3 the A area in, and this part of the area can be used to place filter media to improve the filtering effect. More specifically, since this space is irregular, it may not be possible to place columnar filter media, and this part of the space can be used to set dispersed filter media with an unfixed structure, so as to make full use of the space and improve the filtering effect.

[0042] For example, one of the first side wall 115 and the second side wall 116 has a larger diameter and the other has a smaller diameter. In this way, when the skeleton device 100 is applied to the filter element assembly 1000, compared with the second side wall 116, the first side wall 115 occupies less space. Therefore, the space around the first side wall 115 can be increased, and this part of the space can be used to place dispersed filtering filter media, thereby further increasing the filling space of the filter media and thus increasing the filling space of the filter media in the filter element assembly 1000.

[0043] For example, in combination with Figure 7 , both the first side wall 115 and the second side wall 116 are arranged in the filtering cavity. The gap between the first side wall 115 and the inner wall of the filter media or the housing 200 of the filter element assembly 1000 is greater than the gap between the second side wall 116 and the inner wall of the filter media or the housing 200 of the filter element assembly 1000. Thus, a space for placing filter media can be constructed on the side where the first side wall 115 is located, so as to increase the filter media in the filtering cavity, improve the space utilization rate, and improve the filtering effect.

[0044] More specifically, the first side wall 115 and the second side wall 116 are configured as arcs with different radii. Thus, the first side wall 115 and the second side wall 116 can be configured in an asymmetric distribution form. Among them, combined with Figure 2 , the arch height of the first side wall 115 is H1, the arch height of the second side wall 116 is H2, and H1 > H2; the first side wall 115 is configured as an arc with a radius of R1, and the second side wall 116 is configured as an arc with a radius of R2, and R1 < R2. That is to say, compared with the second side wall 116, the first side wall 115 has a higher arch height and a smaller radius, while the second side wall 116 has a lower arch height and a larger radius.

[0045] In some embodiments of the present utility model, the arch height of the first side wall 115 is not less than 4.5 mm; the arch height of the second side wall 116 is not less than 3.5 mm. Specifically, the arch height of the second side wall 116 is less than that of the first side wall 115. The arch height of the side wall is preferably not less than 4.5 mm. Since the arch height determines the radial dimension of the flow channel, when manufacturing the skeleton tube body 10, the flow channel is constructed by a die insert pin. By limiting the minimum arch height, the size of the flow channel can be ensured, so that the flow rate of the flow channel is stable, and the insert pin for constructing the flow channel is not too slender, making the insert pin not easily deformed and easily demolded, which is beneficial to improving the yield of the skeleton tube body 10. For example, the arch height of the first side wall 115 can be 5 mm, and the arch height of the second side wall 116 is 4 mm. It can also be that the arch height of the first side wall 115 can be 10 mm or 12 mm, and the arch height of the second side wall 116 is 8 mm or 10 mm, etc. The present utility model is not limited thereto.

[0046] In some embodiments of the present utility model, the inscribed circle diameter of the first side wall 115 can be greater than 7 mm. For example, the inscribed circle diameter of the first side wall 115 can be 8 mm or 10 mm. The inscribed circle diameter of the second side wall 116 can be greater than 11 mm. For example, the inscribed circle diameter of the second side wall 116 can be 12 mm or 15 mm.

[0047] In some embodiments of the present utility model, the first side wall 115 can be set as a semi-circular shape with a central angle greater than 180°, and the second side wall 116 can be set as a semi-circular shape with a central angle not less than 180°, and the radius of the first side wall 115 is less than that of the second side wall 116. In other words, when the first side wall 115 and the second side wall 116 are arranged asymmetrically along the axial direction, the first side wall 115 is configured as a semi-circular shape with a smaller radius and a larger radian, and the second side wall 116 is configured as a semi-circular shape with a larger radius and a smaller radian.

[0048] In some embodiments of the present utility model, combined with Figure 4, the first side wall 115 and the second side wall 116 are symmetrically distributed with respect to the middle wall 117. Specifically, the first side wall 115 is provided as a semicircle, the second side wall 116 is provided as a semicircle, and the first side wall 115 and the second side wall 116 cooperate to form a circle, which is convenient for manufacturing. Moreover, the first side wall 115 and the second side wall 116 have the same dimensions, and the flow rates of the first flow channel 110 and the second flow channel 120 can also be substantially the same. In addition, since the first side wall 115 and the second side wall 116 are symmetrically arranged to form a regular shape, a filter material with a regular structural shape, such as a columnar filter material, can be provided on the outer periphery of the pipe portion to improve the filtering effect.

[0049] When the skeleton tube body 10 is flipped so that the opposite sides along the radial direction are exchanged, the first side wall 115 and the second side wall 116 are opposite to each other along the radial direction. Specifically, the first side wall 115 and the second side wall 116 can be arranged in an axially symmetric or substantially symmetric form.

[0050] More specifically, the first side wall 115 and the second side wall 116 are provided as arcs with the same radius to form a symmetrically distributed form of the first side wall 115 and the second side wall 116. Specifically, in combination with Figure 4 , the arch height of the first side wall 115 is H1, the arch height of the second side wall 116 is H2, and H1 = H2; the first side wall 115 is configured as an arc with a radius of R1, and the second side wall 116 is configured as an arc with a radius of R2, and R1 = R2.

[0051] In some embodiments of the present invention, the arch height of the first side wall 115 is equal to the arch height of the second side wall 116 and is not less than 4 mm. Combining the foregoing, an arch height of the side wall not less than 4 mm is convenient for manufacturing the skeleton tube body 10. Specifically, the arch height of the first side wall 115 and the arch height of the second side wall 116 can be 5 mm, 6 mm, 8 mm, etc.

[0052] In some embodiments of the present invention, the diameters of the inscribed circles of the first side wall 115 and the second side wall 116 can be equal and not less than 9 mm. For example, the diameters of the inscribed circles of the first side wall 115 and the second side wall 116 are 10 mm or 12 mm.

[0053] It should be noted that the aforementioned arch height of the side wall refers to the vertical distance from the lowest point to the highest point of the arc.

[0054] Optionally, the first side wall 115 and the second side wall 116 of the skeleton tube body 10 are arranged side by side, which is convenient for construction.

[0055] In some embodiments of the present utility model, the wall thickness of the first side wall 115 and the second side wall 116 is not less than 1.6 millimeters, which can improve the structural stability of the skeleton tube body 10 and also improve the yield rate during manufacturing. Specifically, as described above, during manufacturing, there is a mold insert pin between the first side wall 115 and the intermediate wall 117 for constructing a flow channel, and the insert pin can construct the first flow channel 110; there is an insert pin between the second side wall 116 and the intermediate wall 117, and the insert pin can construct the second flow channel 120. The first side wall 115 and the second side wall 116 have a certain thickness, which can avoid deformation or damage caused by the pressure of the insert pin during manufacturing, and is conducive to improving the yield rate of the skeleton tube body 10. In addition, when the machine is running or stopped, the first side wall 115 and the second side wall 116 having a certain thickness can form a pressure difference between the inner and outer sides of the side wall, and a sufficient thickness can prevent water leakage due to water pressure.

[0056] Specifically, the wall thicknesses of the first side wall 115 and the second side wall 116 can be the same or different. For example, in combination with Figure 2 , the wall thicknesses of the first side wall 115 and the second side wall 116 are the same, and the wall thickness of the side wall is L, and L can be 1.6 millimeters, 1.8 millimeters, 2 millimeters, etc., and the present utility model is not limited thereto.

[0057] In some embodiments of the present utility model, the cross-sectional area of the first flow channel 110 is larger than the cross-sectional area of the second flow channel 120. The cross-sectional area of the first flow channel 110 can also be equal to the cross-sectional area of the second flow channel 120.

[0058] Optionally, the cross-sectional area of the first flow channel 110 is not less than 30 square millimeters. The cross-sectional area of the second flow channel 120 is not less than 30 square millimeters. This can ensure the flow rates of the first flow channel 110 and the second flow channel 120, and is conducive to improving the filtration efficiency. Specifically, from the perspective of flow rate, as long as the cross-sectional area of the flow channel is larger than a certain value, generally it can be larger than 20 - 30 square millimeters without causing flow restriction. A channel is formed between the first side wall 115 and the intermediate wall 177, and a channel is formed between the second side wall 116 and the intermediate wall 177. The cross-sectional areas of the two channels are constructed to be approximately close because when manufacturing the skeleton tube body 10, the flow channels are constructed by mold insert pins. The smaller the cross-sectional area of the flow channel, the thinner the insert pin, and the more likely the insert pin is to bend and deform, resulting in uneven local wall thickness and perforation. Therefore, try to coordinate and allocate the space so that the thinnest insert pin can also be a little thicker, thereby avoiding insert pin deformation and improving the manufacturing effect.

[0059] In some embodiments of the present utility model, the skeleton tube body 10 is integrally formed, which is convenient for manufacturing and assembly and is conducive to simplifying the structure of the filter element assembly 1000.

[0060] In some embodiments of the present utility model, in combination with Figure 1 and Figure 2, the first flow channel 110 and the second flow channel 120 are separated from each other within the framework tube body 10. That is to say, the first flow channel 110 and the second flow channel 120 that are separated from each other can be directly constructed on the framework tube body 10, and the framework tube body 10 is an integrally formed structure. The two flow channels can be integrated into the same component, that is, within the framework tube body 10, which is convenient for manufacturing and assembly, conducive to simplifying the structure of the filter element assembly 1000, and conducive to increasing the filling space of the filter medium within the filter element assembly 1000, thereby facilitating the improvement of the filtering effect.

[0061] Combined with Figure 1 , in some embodiments of the present invention, the framework tube body 10 has opposite first and second ends. The end face of the first end is provided with a first opening communicating with the first flow channel 110, and the end face of the second end is provided with a second opening communicating with the second flow channel 120. That is to say, the first opening of the first flow channel 110 and the second opening of the second flow channel 120 are located at different ends of the framework tube body 10. In this way, during demolding, the ejector pin within the first flow channel 110 can be ejected from the first opening at the first end of the framework assembly; the ejector pin within the second flow channel 120 can be ejected from the second opening at the second end of the framework assembly, and the two ejector pins will not interfere with each other during demolding, facilitating demolding.

[0062] Furthermore, in some embodiments of the present invention, at least a part of the inner peripheral surface of the first flow channel 110 is configured as an inclined surface shape that gradually expands outward in the direction from the second end to the first end. At least a part of the inner peripheral surface of the second flow channel 120 is configured as an inclined surface shape that gradually expands outward in the direction from the first end to the second end. Specifically, combined with the foregoing, when the ejector pin is demolded from the first flow channel 110, the ejector pin can be ejected from the first end. Therefore, at least a part of the inner peripheral surface of the first flow channel 110 is configured as an inclined surface shape that gradually expands outward in the direction from the second end to the first end, making it easy for the ejector pin to be ejected from the first end. Similarly, when the ejector pin is demolded from the second flow channel 120, it can be ejected from the second end. Therefore, at least a part of the inner peripheral surface of the second flow channel 120 is configured as an inclined surface shape that gradually expands outward in the direction from the first end to the second end, making it easy for the ejector pin to be ejected from the second end. Among them, the inner peripheral surface of the first flow channel 110 can be an inclined surface shape that gradually expands outward from the second end to the first end, or the inner peripheral surface of the first flow channel 110 has a linear shape and an inclined surface shape, and is in an inclined surface shape near the first end, that is, the shape near the demolding position is configured as an inclined surface shape. Similarly, the inner peripheral surface of the second flow channel 120 can be an inclined surface shape that gradually expands outward from the first end to the second end, or the inner peripheral surface of the second flow channel 120 has a linear shape and an inclined surface shape, and is in an inclined surface shape near the second end.

[0063] It should be noted that the inclination angle of the inclined surface is the draft angle, which is convenient for the formed part to be separated from the mold.

[0064] Even further, combined withFigure 1 In some embodiments of the present utility model, a first joint 111 is provided at the first end of the skeleton tube body 10, a first opening is provided in the first joint 111, and the first joint 111 extends out of the second flow channel 120. Specifically, the first joint 111 extends out of the second flow channel 120, so that the first joint 111 can be separately connected to the filter element assembly 1000, or rather, the first joint 111 can facilitate the connection of the first end of the skeleton tube body 10 to the filter element assembly 1000.

[0065] A second joint 112 is provided at the second end of the skeleton tube body 10, a second opening is provided in the second joint 112, and the second joint 112 extends out of the first flow channel 110. The second joint 112 extends out of the first flow channel 110, so that the second joint 112 can be separately connected to the filter element assembly 1000, or rather, the second joint 112 can facilitate the connection of the second end of the skeleton tube body 10 to the filter element assembly 1000.

[0066] Combined Figure 1 In some embodiments of the present utility model, the projection of the first joint 111 along the axial direction of the skeleton tube body 10 covers at least a part of the first flow channel 110 and the second flow channel 120. In this way, the first joint 111 can be located in the axial direction of the skeleton tube body 10, thus facilitating the assembly of the skeleton tube body 10. The second joint 112 is configured such that the projection along the axial direction of the skeleton tube body 10 covers at least a part of the first flow channel 110 and the second flow channel 120. In this way, the second joint 112 can be located in the axial direction of the skeleton tube body 10, thus facilitating the assembly of the skeleton tube body 10.

[0067] More specifically, in some embodiments of the present utility model, both the first joint 111 and the second joint 112 are provided in the axial direction of the skeleton tube body 10, or the first joint 111 and the second joint 112 are coaxially connected along the axial direction of the skeleton tube body 10. Thereby, the assembly of the skeleton tube body 10 can be facilitated, and the assembled skeleton tube body 10 can also rotate.

[0068] In some embodiments of the present utility model, the first joint 111 can be configured as a circular tubular shape, which is convenient for connecting and cooperating with other components. In addition, a sealing structure can be provided on the outer periphery of the tubular shape of the first joint 111, which is beneficial to improving the sealing effect and connection tightness after assembly. Specifically, a groove can be provided on the outer peripheral surface of the first joint 111, and the sealing ring can be placed in the groove to achieve a sealing effect during assembly. Optionally, the second joint 112 can be configured as a circular tubular shape, which is convenient for connecting and cooperating with other components. Similarly, the circular tubular structure is convenient for setting a sealing structure when the second joint 112 cooperates with other components, thereby improving the connection tightness. For example, the end cap in the filter element assembly 1000 can extend into the second joint 112 and cooperate with the second joint 112. Among them, a sealing structure can be provided on the outer peripheral surface of the end cap, and the sealing structure is provided between the end cap and the inner wall of the second joint 112, thereby improving the connection tightness.

[0069] Combined Figures 7 to 9 , according to the filter element assembly 1000 of the embodiment of the present utility model, includes: a housing 200, the aforementioned skeleton device 100, a first integral filter medium 410, and a dispersed filter medium. The skeleton device 100 is disposed in the housing 200, and a first accommodation cavity 210 is formed between the housing 200 and the skeleton tube body 10; the first integral filter medium 410 is disposed in the first accommodation cavity 210, the first integral filter medium 410 is disposed around the outer periphery of the skeleton tube body 10, and a first cavity 201 is constructed between the outer peripheral surface of the first integral filter medium 410 and the housing 200; a second cavity 202 is constructed between the inner peripheral surface of the first integral filter medium 410 and the skeleton tube body 10, and the dispersed filter medium is disposed in the second cavity 202.

[0070] In the present utility model, the first integral filter medium 410 refers to a filter medium formed into an integral structure, which can have a certain shape and plasticity. For example, the first integral filter medium 410 can be set as a structure that is fixed and cannot be deformed; or, the first integral filter medium 410 can also be set as a structure that can be adjusted 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 as a form with an unfixed structure. For example, the dispersed filter medium can be set as a powder form, a 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.

[0071] According to the filter element assembly 1000 of the embodiment of the present utility model, the space originally vacant between the first integral filter medium 410 and the skeleton device 100 is utilized, and a dispersed filter medium is provided to make full use of the space between the first integral filter medium 410 and the skeleton device 100. With the cooperation of the first integral filter medium 410 and the dispersed filter medium, the filtration effect of the filter element assembly 1000 can be optimized. In addition, the first integral filter medium 410 can be used to limit and shape the dispersed filter medium, effectively simplifying the structure of the filter element assembly 1000.

[0072] In some embodiments of the present utility model, 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.

[0073] Combined Figure 7 , the filter element assembly 1000 may further include a flange 20, a first end cap 510, and a second end cap 520. The flange 20 is connected to the skeleton tube body 10. A first accommodation cavity 210 is formed among the flange 20, the housing 200, and the first end cap 510. The first integral filter medium 410 is disposed around the outer side of the skeleton tube body 10. A second cavity 202 is provided between the first integral filter medium 410 and the skeleton tube body 10. A first cavity 201 is provided on the outer side of the first integral filter medium 410. On the side of the flange 20 facing the first end cap 510 and on the side of the first end cap 510 facing the flange 20, positioning grooves surrounding the skeleton device 100 are provided. The two ends of the first integral filter medium 410 are respectively positioned in the positioning grooves, so as to realize the positioning of the integral filter medium. At the same time, the first integral filter medium 410 separates the first cavity 201 and the second cavity 202, so that fluid can be filtered through the first filter medium 410.

[0074] The filter element assembly 1000 further includes an inner cylinder 300 and a second integral filter medium 420. The inner cylinder 300 is disposed in the housing 200. A second accommodation cavity 220 is formed among the flange 20, the inner cylinder 300, and the second end cap 520. The second integral filter medium 420 is disposed in the second accommodation cavity 220. The flange 20 and the second end cap 520 are opposite to each other along the axial direction of the skeleton device 100. On the side of the flange 20 facing the second end cap 520 and on the side of the second end cap 520 facing the flange 20, positioning grooves surrounding the skeleton device 100 are provided. The two ends of the second integral filter medium 420 are respectively positioned in the positioning grooves, so as to realize the positioning of the second integral filter medium 420.

[0075] Combined Figure 7 and Figure 9, the second integral filter medium 420 is disposed around the outer periphery of the skeleton tube body 10. There is a third chamber 203 between the second integral filter medium 420 and the skeleton device 100, and a fourth chamber 204 between the second integral filter medium 420 and the inner cylinder 300. The first flow channel 110 communicates with the third chamber 203, and the second flow channel 120 communicates with the fourth chamber 204. Specifically, water can enter the second flow channel 120 from the water inlet, and then enter the fourth chamber 204 communicated with the second flow channel 120. The water in the fourth chamber 204 is filtered by the second integral filter medium 420 and then enters the third chamber 203, and then is discharged from the first flow channel 110 communicated with the third chamber 203 to achieve 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 1000. A third flow channel 130 communicating with the fourth chamber 204 is constructed between the second end cap 520 and the inner cylinder 300. The second flow channel 120 of the skeleton device 100 and the fourth chamber 204 can be communicated through the second end cap 520, which is convenient for guiding the fluid to flow from the skeleton device 100 into the fourth chamber 204, optimizing the pipeline and facilitating the filtration of the fluid.

[0076] The filtration system according to an embodiment of the present invention includes the skeleton device 100 of the filter element assembly 1000 according to the foregoing or the filter element assembly 1000 according to the foregoing.

[0077] It should be noted that in combination with Figure 7 , the foregoing axial direction can refer to Figure 7 the up and down directions in Figure 7 , and the foregoing radial direction can refer to

[0078] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0079] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such 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.

[0080] In the present utility model, unless otherwise clearly specified or limited, terms such as "installed", "connected", "coupled", "fixed", etc. shall be construed in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; 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 between 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.

[0081] 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.

[0082] 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 descriptions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. 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.

[0083] 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 skeleton device of a filter element assembly, characterized in that: It includes a skeleton tube body, which includes a first side wall, a second side wall and a middle wall. The first side wall, the second side wall and the middle wall extend along the axis of the skeleton tube body. A first flow channel is provided between the first side wall and the middle wall, and a second flow channel is provided between the second side wall and the middle wall.

2. The skeleton device of the filter element assembly according to claim 1, characterized in that: The first side wall and the second side wall are asymmetrically distributed with respect to the middle wall.

3. The skeleton device of the filter element assembly according to claim 2, characterized in that: The arch height of the first side wall is H1, and the arch height of the second side wall is H2, H1>H2; the first side wall is configured as an arc with a radius of R1, and the second side wall is configured as an arc with a radius of R2, R1<R2.

4. The skeleton device of the filter element assembly according to claim 2, characterized in that: The arch height of the first side wall is not less than 4.5 mm; the arch height of the second side wall is not less than 3.5 mm; and / or The diameter of the inscribed circle of the first side wall is greater than 7 mm, and the diameter of the inscribed circle of the second side wall is greater than 11 mm.

5. The skeleton device of the filter element assembly according to claim 1, characterized in that: The first side wall and the second side wall are symmetrically distributed with respect to the middle wall.

6. The skeleton device of the filter element assembly according to claim 5, characterized in that: The first side wall is set to be semicircular; the second side wall is set to be semicircular, and the first side wall and the second side wall cooperate to form a circle.

7. The skeleton device of the filter element assembly according to claim 5, characterized in that: The arch height of the first side wall is H1, the arch height of the second side wall is H2, H1=H2; the first side wall is configured as an arc with a radius of R1, the second side wall is configured as an arc with a radius of R2, R1 is equal to R2.

8. The skeleton device of the filter element assembly according to claim 5, characterized in that: The arch height of the first side wall is equal to the arch height of the second side wall and is not less than 4 mm; and / or The diameters of the inscribed circles of the first side wall and the second side wall are equal and not less than 9 mm.

9. The skeleton device of the filter element assembly according to any one of claims 1 to 8, characterized in that: The thickness of the first side wall and the second side wall is not less than 1.6 mm; and / or The first side wall and the second side wall are respectively connected to two opposite sides of the middle wall.

10. The skeleton device of the filter element assembly according to any one of claims 1 to 8, characterized in that: The cross-sectional area of ​​the first flow channel is not less than 30 square millimeters; and / or The cross-sectional area of ​​the second flow channel is not less than 30 square millimeters.

11. The skeleton device of the filter element assembly according to any one of claims 1 to 8, characterized in that: The first flow channel and the second flow channel are separated from each other in the skeleton tube body; and / or The skeleton tube body is integrally formed.

12. A filter element assembly, characterized in that: include: case, The skeleton device according to any one of claims 1 to 11, wherein the skeleton device is arranged in the shell, and a first accommodating cavity is formed between the shell and the skeleton tube body; A first integral filter material, the first integral filter material is arranged in the first accommodating cavity, the first integral filter material is arranged around the outer periphery of the skeleton tube body, a first cavity is constructed between the outer peripheral surface of the first integral filter material and the shell; a second cavity is constructed between the inner peripheral surface of the first integral filter material and the skeleton tube body; Dispersed filter material, the dispersed filter material is arranged in the second cavity.

13. The filter element assembly according to claim 12, characterized in that: The dispersed filter material is set to include at least one of a water-soluble filter medium and a water-insoluble filter medium; or, the dispersed filter material is set to include at least one of citric acid, baking soda, resin, ore and antiscalant.

14. A filtering system, characterized in that: A skeleton device comprising a filter element assembly according to any one of claims 1-11 or a filter element assembly according to claim 12 or 13.

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