A filter cartridge and a filter

Abstract

A filter element and a filter, the filter element comprising a center support assembly, a blind cover, a joint, and a filter medium, wherein a communication port is further formed on the center support assembly, the communication port being arranged at one end close to the blind cover and used for communicating with a flow channel; a flow guide channel is arranged below the communication port and used for forcing the material to flow from bottom to top and enter the flow channel through the communication port. With the above scheme, during the filtration, the filtered material will only pass through the communication port when the material level inside the filter is higher than the communication port, and then enter the center flow channel and finally flow out from the bottom joint. This makes the material inside the filter always at a high liquid level during the filtration process, thereby ensuring that the filter element can be more fully and comprehensively utilized and the service life of the filter element is improved.

Description

Technical Field

[0001] This invention relates to the field of filtration technology, specifically to a filter element and a filter. Background Technology

[0002] The PH series capsule filters are suitable for use in lithium battery coating lines with speeds below 25 m / min. The design eliminates dead corners and makes them easy to disassemble and clean.

[0003] For example, the utility model patent (CN210206064U) discloses an RK single-core filter, including a filter element, a stainless steel cylinder, a stainless steel base, a first filter screen, and a second filter screen. A stainless steel base is installed at the bottom of the stainless steel cylinder, and the connection between the stainless steel base and the stainless steel cylinder is fixed by a quick-release clamp. The filter element is installed above the base plate. A feed channel is provided inside the stainless steel base below the base plate. A feed inlet is provided on the side of the stainless steel base outside the feed channel. The first filter screen is installed on the inner side of the feed inlet through a first hollow stud. An outlet is provided on the side of the stainless steel base on one side of the discharge channel. The second filter screen is installed on the inner side of the outlet through a second hollow stud. This utility model, by setting up a stainless steel cylinder, stainless steel base, first filter screen, second filter screen, filter element, feed inlet, outlet, and quick-release clamp structure, solves the problems of poor slurry flowability, poor filtration effect, and difficulty in cleaning the filter element when replacing it.

[0004] For example, a utility model patent (CN220257313U) discloses a high-flow-rate filter element, including a base, a housing, and several inner filter elements. The base has an inlet, an outlet, and a drain. The base is divided into an inner channel and an outer channel by a partition. The inlet and outlet are connected to the outer channel, and the drain is equipped with a drain valve. The outlet is connected to the inner channel. A connecting plate is installed at the upper end of the partition, which covers the inner channel. The inner filter elements are installed on the connecting plate, which has an interface corresponding to each inner filter element. The interface is connected to the inner channel. A plug is installed at the inlet and outlet, and a spring is installed between the plug and the connecting plate. The housing is installed on the base and encloses the inner filter elements. When this filter element is in use, multiple inner filter elements work together to filter the water. The filtered water converges in the inner channel, resulting in a high filtration flow rate and a long service life, eliminating the need for frequent replacement. Both types of capsule filters mentioned above adopt a bottom-in, bottom-out liquid flow method, and the filtration direction of the inner filter element is from the outside to the inside. Usually, during filtration, the material begins to flow before the capsule shell is completely filled. This results in the lower half of the inner filter element having a significantly higher utilization rate than the upper half. The closer to the top, the lower the utilization rate, thus affecting the overall service life. Summary of the Invention

[0005] To overcome the shortcomings of the prior art, the present invention provides a filter element and a filter.

[0006] The technical solution adopted in this invention is: a filter element, comprising: The central support component has a longitudinally arranged flow channel formed in its central part; The blind flange cover is fixedly installed on the upper end of the central support assembly and closes the upper end of the flow channel; The connector is fixedly installed at the lower end of the central support assembly and is connected to the lower end of the flow channel; The filter medium covers the outside of the central support assembly, and its upper and lower ends are sealed to the blind flange cover and the joint.

[0007] The central support component also includes: A connecting port, located at one end near the blind flange cover, is used to connect the flow channel; The flow channel, located below the connector, is used to force material to flow upwards and enter the flow channel through the connector.

[0008] Preferably, the central support component includes: The central tube is fixedly connected to the blind flange cover and the connector at its upper and lower ends, respectively, and its surface is evenly covered with guide holes. An inner sleeve is provided inside the central tube, and the lower end of the inner sleeve is fixedly connected to the connector. The inner sleeve forms a flow channel that communicates with the connector at its center, and the upper end of the inner sleeve forms the communication port. The gap between the inner sleeve and the central tube constitutes the flow channel.

[0009] The aforementioned filter element is used in a bottom-in, bottom-out filter. During filtration, the material flows from the outside in. When the material level inside the filter is lower than the height of the inner sleeve, the material is blocked by the inner sleeve and cannot flow out through the central channel. Only when the material level inside the filter is higher than the connecting port will the filtered material pass through the connecting port, enter the central channel, and finally flow out from the bottom interface. In other words, through this design, the material inside the filter is always at a high level during the filtration process, thereby ensuring more full and comprehensive utilization of the filter element and extending its service life.

[0010] In addition, the above solution uses a combination of a central tube and an inner sleeve to form a central support component, which has a simple overall structure, is easy to manufacture, and has a lower cost.

[0011] As another preferred embodiment, the central support component includes: The central tube is fixedly connected to the blind flange cover and the connector at its upper and lower ends, respectively, and has several guide holes at the end near the blind flange cover. Several supporting ribs are evenly spaced and distributed on the outer circumference of the central tube; The central tube forms a flow channel that communicates with the connector, the flow guide hole constitutes the communication port, and the gap between adjacent support ribs constitutes the flow guide channel.

[0012] The aforementioned filter element is used in a bottom-in, bottom-out filter. During filtration, the material flows from the outside in. When the material level inside the filter is lower than the top guide hole of the central tube, the material is blocked by the central tube and cannot flow out through the central channel. Only when the material level inside the filter is higher than the top guide hole of the central tube will the filtered material pass through the connecting port and enter the central channel, finally flowing out from the bottom interface. In other words, through the above scheme, the material inside the filter can always be at a high liquid level during the filtration process, thereby ensuring more full and comprehensive utilization of the filter element and improving its service life.

[0013] In addition, the above solution forms a flow channel by arranging reinforcing ribs at intervals, resulting in higher overall strength.

[0014] Furthermore, the filter medium can adopt a folded structure and cover the central support assembly. The filter medium is folded to form a first fold, which includes a first fold near the central tube, and the first fold is confined between two adjacent support ribs.

[0015] Furthermore, the filter medium also includes a second fold, which is disposed between two first folds, and the second fold is alternately disposed with the first fold; the second fold includes a second fold near the central tube, and the second fold corresponds to the support rib and maintains a gap.

[0016] Of course, the filter medium can adopt a wound structure and be wrapped around the central support component.

[0017] The present invention also provides a filter, including a base, a housing, and the above-mentioned filter element. The base has an inlet and an outlet. The housing is mounted on the base, and the filter element is disposed inside the housing, with its connector corresponding to and connected to the outlet.

[0018] Furthermore, the base is provided with a flower plate, which divides the cavity formed by the outer shell and the base into an inner channel and an outer channel. The outer channel is connected to the liquid inlet, and the inner channel is connected to the liquid outlet. The flower plate is provided with several interfaces, and the filter element is provided with multiple interfaces and is installed on the flower plate and connected to the interfaces accordingly.

[0019] The beneficial effects of the present invention are as follows: By adopting the above scheme, during filtration, the filtered material will only pass through the connecting port and enter the central flow channel when the material level inside the filter is higher than the connecting port, and finally flow out from the bottom interface. This ensures that the material inside the filter is always at a high liquid level during the filtration process, thereby ensuring that the filter element can be utilized more fully and comprehensively, and improving the service life of the filter element. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of the filter according to Embodiment 1 of the present invention.

[0021] Figure 2 This is a schematic diagram of the filter element in Embodiment 1 of the present invention.

[0022] Figure 3 for Figure 2 Enlarged diagram of point A in the middle.

[0023] Figure 4 This is a schematic diagram of the structure of the filter in Embodiment 2 of the present invention.

[0024] Figure 5 This is a schematic diagram of the filter element in Embodiment 2 of the present invention.

[0025] Figure 6 This is a schematic diagram of the longitudinal cross-section of the filter element in an embodiment of the present invention.

[0026] Figure 7 This is a schematic diagram of the cross-sectional structure of the filter element in an embodiment of the present invention.

[0027] Figure 8 for Figure 7 Enlarged diagram of point B in the middle. Detailed Implementation

[0028] The embodiments of the present invention will be further described below with reference to the accompanying drawings. Example 1

[0029] like Figures 1-3 As shown, a filter includes a base 8, a housing 9, and several filter elements.

[0030] The base 8 has an inlet 81 and an outlet 82, and the outer shell 9 is mounted on the base 8. The base 8 has a conduit 83 that divides the cavity formed by the outer shell 9 and the base 8 into an inner channel 84 and an outer channel 85. The outer channel 85 communicates with the inlet 81, and the inner channel 84 communicates with the outlet 82. The conduit 83 has several interfaces connecting the inner channel 84 and the outer channel 85.

[0031] The filter element includes a central support assembly 1, a blind plate cover 2, a connector 3, and a filter medium 4. The central support assembly 1 includes a central tube 5 and an inner sleeve 6.

[0032] The surface of the central tube 5 is evenly covered with flow guide holes 51. The blind plate cover 2 is fixedly installed at the upper end of the central tube 5. The connector 3 is fixedly installed at the lower end of the central tube 5. The inner sleeve 6 is located inside the central tube 5, and the lower end of the inner sleeve 6 is fixedly connected to the connector 3. Its upper end is left with a certain gap from the blind plate cover 2. The filter medium 4 is wrapped around the outside of the central tube 5 by winding, and the upper and lower ends of the filter medium 4 are sealed with the blind plate cover 2 and the connector 3.

[0033] The inner sleeve 6 forms a flow channel 11 that communicates with the connector 3 at its center, the gap between the upper end of the inner sleeve 6 and the blind plate cover 2 forms a communication port 12, and the gap between the inner sleeve 6 and the central tube 5 forms a flow channel 13.

[0034] The filter element is provided in multiple quantities, which is consistent with the number of interfaces on the flower plate. The filter element is installed on the flower plate and is connected to each interface in sequence.

[0035] During filtration, the material first flows into the outer channel 85 from the inlet 81. The material is filtered from the outside to the inside through the filter medium. However, due to the obstruction of the inner sleeve 6, the filtered material is retained in the guide channel 13 and cannot flow out directly. As the liquid level of the material gradually rises, the material in the guide channel 13 also increases and flows upward. When the liquid level is higher than the inner sleeve 6, the filtered material can pass through the connection port 12 between the upper end of the inner sleeve 6 and the blind plate cover 2, and then enter the inner channel 84 in sequence through the flow channel 11, the connector, and the interface, and finally flow out from the outlet 82.

[0036] With the above solution, during filtration, the filtered material will only pass through the connection port and enter the central flow channel when the material level inside the filter is higher than the connection port, and finally flow out from the bottom port. This ensures that the material inside the filter is always at a high liquid level throughout the filtration process, thereby ensuring that the filter element can be utilized more fully and comprehensively, and improving the service life of the filter element.

[0037] In addition, the combined filtration of multiple filter elements results in a large overall filtration flow rate and further extends the filter's lifespan, reducing the frequency of replacement. Example 2

[0038] like Figures 4-8 As shown, a filter includes a base 8, a housing 9, and a filter element.

[0039] The base 8 has an inlet 81 and an outlet 82, and the outer shell 9 is mounted on the base 8.

[0040] The filter element includes a central support assembly 1, a blind plate cover 2, a connector 3, and a filter medium 4. The central support assembly 1 includes a central tube 5. The outer wall of the central tube 5 is provided with a number of longitudinally arranged support ribs 7. The support ribs 7 are evenly distributed at intervals along the outer circumference of the central tube 5. A number of guide holes 51 are formed near the upper end of the central tube 5.

[0041] The blind flange cover 2 is fixedly installed at the upper end of the central tube 5, the connector 3 is fixedly installed at the lower end of the central tube 5, and the filter medium 4 is wrapped around the outside of the central tube 5 by folding, and the upper and lower ends of the filter medium 4 are sealed with the blind flange cover 2 and the connector 3.

[0042] The central tube 5 forms a flow channel 11 that is connected to the connector 3, and the gap between adjacent support ribs 7 forms a flow channel 13. The filter element is installed on the base 8, and its connector is connected to the liquid outlet 82 on the base 8.

[0043] The filter medium 4 includes alternating first fold 41 and second fold 42. The first fold 41 includes a first fold near the central tube 5, which is confined between two adjacent support ribs 7. The second fold 42 includes a second fold near the central tube 5, and the second fold is correspondingly arranged with the support rib 7.

[0044] During filtration, the material first flows in through the inlet 81 and is filtered from the outside to the inside through the filter medium. However, since the guide hole is located at the upper end, the filtered material is retained in the guide channel 13 and cannot flow out directly. As the liquid level of the material gradually rises, the material in the guide channel 13 also increases and flows upward. When the liquid level is higher than the guide hole, the filtered material can pass through the guide hole and then through the flow channel 11 and the connector in sequence, and finally flow out from the outlet 82.

[0045] With the above solution, during filtration, the filtered material will only pass through the guide hole and enter the central flow channel when the material level inside the filter is higher than the guide hole, and finally flow out from the bottom interface. This ensures that the material inside the filter is always at a high liquid level throughout the filtration process, thereby ensuring that the filter element can be utilized more fully and comprehensively, and improving the service life of the filter element.

[0046] In addition, the use of pleated filter elements can not only significantly increase the filtration area, improve dirt holding capacity and flow rate, reduce fluid resistance, save energy and extend system life, but also increase the number of pleated layers by alternating first and second pleats, thereby further increasing the filtration area. Furthermore, adjacent first pleats are separated and positioned by support ribs, which avoids or reduces the possibility of the pleats of the filter medium shifting due to the impact of material flow during the filtration process, causing adjacent pleats to be too densely pressed together, thus affecting the material flow and filtration.

[0047] In the description of this invention, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0048] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances. Furthermore, in the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0049] Please note to all technical personnel: Although the present invention has been described according to the specific embodiments above, the inventive concept of the present invention is not limited to this invention. Any modifications that utilize the inventive concept will be included within the scope of protection of this patent.

Claims

1. A filter element, comprising: The central support component (1) has a longitudinally arranged flow channel (11) in its central part. Blind plate cover (2), which is fixedly installed on the upper end of the central support assembly (1); The connector (3) is fixedly installed at the lower end of the central support assembly (1) and is connected to the flow channel (11); The filter medium (4) covers the outside of the central support assembly (1), and its upper and lower ends are sealed to the blind plate cover (2) and the connector (3); Its features are: The central support component (1) also has the following: A connecting port (12) is provided at one end near the blind plate cover (2) for connecting the flow channel (11). The flow channel (13), located below the connecting port (12), is used to force the material to flow from bottom to top and enter the flow channel (11) through the connecting port (12).

2. The filter element according to claim 1, characterized in that: The central support component (1) includes: The central tube (5) is fixedly connected to the blind plate cover (2) and the connector (3) at its upper and lower ends respectively, and its surface is evenly covered with guide holes (51). The inner sleeve (6) is located inside the central tube (5), and the lower end of the inner sleeve (6) is fixedly connected to the connector (3); The inner sleeve (6) forms a flow channel (11) that communicates with the connector (3) at its center, and the upper end of the inner sleeve (6) forms the communication port (12). The gap between the inner sleeve (6) and the central tube (5) constitutes the flow channel (13).

3. The filter element according to claim 1, characterized in that: The central support component (1) includes: The central tube (5) is fixedly connected to the blind plate cover (2) and the connector (3) at its upper and lower ends respectively, and a number of guide holes (51) are formed at the end near the blind plate cover. Several supporting ribs (7) are evenly spaced on the outer periphery of the central tube (5); The central tube (5) forms a flow channel (11) that is connected to the connector (3), the flow guide hole (51) constitutes the communication port (12), and the gap between adjacent support ribs (7) constitutes the flow guide channel (13).

4. The filter element according to claim 1, characterized in that: The filter medium (4) adopts a winding structure and is wrapped around the central support component (1).

5. The filter element according to claim 1, characterized in that: The filter medium (4) adopts a folded structure and is wrapped around the central support component (1).

6. The filter element according to claim 3, characterized in that: The filter medium (4) adopts a folded structure, which includes a first fold (41), the first fold (41) including a first fold near the central tube (5), the first fold being confined between two adjacent support ribs (7).

7. The filter element according to claim 6, characterized in that: The filter medium (4) further includes a second fold (42), which is disposed between two first folds (41), and the second fold (42) and the first fold (41) are alternately disposed; The second fold (42) includes a second fold near the central tube (5), and the second fold corresponds to the support rib (7) and maintains a gap.

8. A filter, characterized in that: The filter includes a base (8), a housing (9), and a filter element as described in any one of claims 1-7. The base (8) has an inlet (81) and an outlet (82) formed thereon. The housing (9) is mounted on the base (8). The filter element is disposed inside the housing (9), and its connector (3) is connected to the outlet (82).

9. The capsule filter according to claim 8, characterized in that: The base (8) is provided with a flower plate (83), which divides the cavity formed by the outer shell (9) and the base (8) into an inner channel (84) and an outer channel (85). The outer channel (85) is connected to the liquid inlet (81), and the inner channel (84) is connected to the liquid outlet (82). The flower plate (83) is provided with several interfaces, and the filter element is provided with multiple interfaces and is installed on the flower plate (83) and connected to the interfaces accordingly.

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