Special-shaped filter cartridge

Abstract

The utility model discloses a special-shaped filter cartridge which comprises a filter cartridge shell arranged on the outer side and inserted between end covers at the two ends and a tubular filter medium arranged on the inner side of the filter cartridge shell, the tubular filter medium extends from one end of the filter cartridge to the other end of the filter cartridge, and the filter cartridge shell is of a hollow structure; the transverse maximum distance line segment is the maximum distance between two points on the inner perimeter and perpendicular to the longitudinal maximum distance line segment; the cross section has a plurality of transverse maximum distance line segments; the longitudinal maximum distance line segment axis is the symmetry axis of the cross section, and meanwhile the longitudinal maximum distance line segment axis equally divides the maximum transverse distance line segment. According to the special-shaped filter cartridge, through the unique cross section structural design, the filter cartridge has better fluid distribution performance in the filtering process, the filtering efficiency and the filtering effect can be improved, meanwhile, the overall structural strength and stability of the filter cartridge are enhanced, the service life of the filter cartridge is prolonged, and the special-shaped filter cartridge meets the filtering requirements under different working conditions.

Description

Technical Field

[0001] This utility model relates to the field of filtration equipment, and in particular to an irregularly shaped filter cartridge that can be used in various fluid environments that require filtration to filter fluids and meet filtration needs under different working conditions. Background Technology

[0002] In filtration equipment, the quality and filtration efficiency of the filter cartridge directly affect the working efficiency of the filtration equipment. The filter cartridge is a cylindrical element used for filtration. It is generally divided into filter cartridges used for filtering gas media and filter cartridges used for filtering liquid media. It belongs to surface filtration elements and uses the tiny air-permeable tissue formed on the surface of the filter material to block particulate matter in gas or liquid.

[0003] Traditional circular or regular-shaped filter cartridges suffer from uneven fluid distribution, low filtration efficiency, and short filter media lifespan, making them unsuitable for high-flow-rate, high-viscosity fluid filtration and complex operating conditions. While irregularly shaped filter cartridges exist, their geometric parameters lack correlation and optimized design, resulting in poor fluid distribution and filtration performance, insufficient structural strength, and susceptibility to deformation and damage. Furthermore, they lack targeted structural optimization for fluids containing large particles, prone to scaling, or corrosive substances, leading to unstable filtration accuracy. Therefore, we propose an irregularly shaped filter cartridge. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the existing defects and provide an irregularly shaped filter cartridge. By optimizing the cross-sectional geometry and parameters, it solves the shortcomings of traditional filter cartridges in terms of fluid distribution, filtration efficiency, structural strength and adaptability to complex working conditions, and meets the requirements of modern industry for high performance, high reliability and long service life of filtration equipment. It can effectively solve the problems in the background technology.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an irregularly shaped filter cartridge, comprising a filter cartridge shell disposed on the outside and inserted between two end caps, and a tubular filter medium disposed on the inside of the filter cartridge shell, wherein the tubular filter medium extends from one end of the filter cartridge to the other end, the filter cartridge shell is a hollow structure, and extends from one end cap of the filter cartridge to the other end cap.

[0006] Wherein, a cross section is obtained transversely to the tube axis at any position along the length of the tubular filter medium, and any cross section defines an inner circumference. There is a straight line segment at the lower part of the longitudinal position of the inner circumference of the filter tube cross section. The straight line segment that intersects the inner circumference perpendicular to the center of the straight line segment is the longitudinal maximum distance Vmax. The maximum distance of the line segment connecting any two points on the inner circumference that are perpendicular to the longitudinal maximum distance is defined as the transverse maximum distance Hmax.

[0007] Among them, the maximum horizontal distance segment is the maximum distance between two points on the inner perimeter that is perpendicular to the maximum vertical distance segment; the cross-section has multiple maximum horizontal distance segments.

[0008] Wherein, the longitudinal maximum distance line segment axis is the axis of symmetry of the cross section, and the longitudinal maximum distance line segment axis equally divides the maximum transverse distance line segment;

[0009] The intersection of the maximum longitudinal distance Vmax and the maximum lateral distance Hmax divides the maximum longitudinal distance Vmax into two segments, with the shorter segment being longer than 0.4 times the maximum longitudinal distance Vmax.

[0010] The inner perimeter of the cross section is divided equally by the longitudinal maximum distance line segment axis; any maximum lateral distance line segment is also divided equally by the longitudinal maximum distance line segment axis.

[0011] Furthermore, the inner perimeter of the cross-section is not continuously curved, but is a set of line segments consisting of at least one straight line segment and multiple curved segments.

[0012] Furthermore, the inner circumference includes at least one straight segment with a length >10mm.

[0013] Furthermore, the longest longitudinal distance segment has one end perpendicularly bisecting a straight segment located at the upper or lower part of the inner circumference, and the other end bisecting a curved segment located at the lower or upper part.

[0014] Furthermore, the maximum lateral distance segment is a straight or curved segment that is perpendicular to the left and right sides of the inner perimeter.

[0015] Furthermore, there is one and only one line of symmetry on the inner circumference of the cross-section of the filter cartridge, and the line of symmetry coincides with the axis of the longitudinal maximum distance line segment.

[0016] Furthermore, a cross-section is obtained transversely to the tube axis at any position along the length of the filter cartridge, and any cross-section defines an outer perimeter. The outer perimeter of the cross-section is not continuously curved and is a set of line segments consisting of at least one straight line segment and multiple curved segments.

[0017] Furthermore, the outer perimeter includes at least one straight segment with a length ≥ 11 mm.

[0018] Furthermore, it also includes an inner support frame, which is composed of multiple U-shaped slots, and the U-shaped slots are fixedly installed on the inner wall of the inner support frame.

[0019] Furthermore, the U-shaped slot is asymmetrically fixed to the inner wall of the inner support frame.

[0020] Furthermore, the number of U-shaped slots is 3, 4, 5, or 6.

[0021] Furthermore, the number of U-shaped slots is 3.

[0022] Furthermore, the inner perimeter of the cross-section is not continuously curved, but is a set of line segments consisting of at least one straight line segment and multiple curved segments.

[0023] Furthermore, the inner circumference includes at least one straight segment with a length >10mm.

[0024] Furthermore, the longest longitudinal distance segment has one end perpendicularly bisecting a straight segment located at the upper or lower part of the inner circumference, and the other end bisecting a curved segment located at the lower or upper part.

[0025] Furthermore, the maximum lateral distance segment is a straight or curved segment that is perpendicular to the left and right sides of the inner perimeter.

[0026] Furthermore, there is one and only one line of symmetry on the inner circumference of the cross-section of the filter cartridge, and the line of symmetry coincides with the axis of the longitudinal maximum distance line segment.

[0027] Compared with the prior art, the beneficial effects of this utility model are as follows: This irregularly shaped filter cartridge has the following advantages:

[0028] Through a unique cross-sectional structure design, the filter cartridge has better fluid distribution performance during the filtration process, which can improve filtration efficiency and filtration effect, while enhancing the overall structural strength and stability of the filter cartridge, extending its service life, and adapting to filtration needs under different working conditions. Attached Figure Description

[0029] Figure 1 This is a first three-dimensional structural diagram of one embodiment of the present utility model;

[0030] Figure 2 This is a schematic diagram of the second three-dimensional structure of one embodiment of the present utility model;

[0031] Figure 3 This is a cross-sectional schematic diagram of one embodiment of the present invention;

[0032] Figure 4 This is a first three-dimensional structural schematic diagram of another embodiment of the present utility model;

[0033] Figure 5 This is a second perspective structural diagram of another embodiment of the present invention;

[0034] Figure 6 This is a cross-sectional schematic diagram of another embodiment of the present invention;

[0035] Figure 7 This is a schematic diagram of the cross-section of the present invention;

[0036] Figure 8 This is a schematic diagram of the end cap structure of this utility model.

[0037] In the diagram: 1. End cap, 2. Tubular filter medium, 3. Internal support frame. Detailed Implementation

[0038] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0039] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0040] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0041] In the description of this utility model, it should be noted that the terms "inner," "lower," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use. They are only for the convenience of describing this utility model and 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, and therefore should not be construed as a limitation on this utility model. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0042] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set" and "connection" 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, a direct connection, or an indirect connection through an intermediate medium; or 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 utility model based on the specific circumstances.

[0043] In this invention, unless otherwise expressly specified and limited, "above or below" the first feature may include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on" the first feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the first feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0044] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0045] First Embodiment

[0046] Please see Figure 1-3 This embodiment provides a technical solution:

[0047] An irregularly shaped filter cartridge includes a filter cartridge shell disposed on the outside and inserted between two end caps 1 at both ends, and a tubular filter medium 2 disposed on the inside of the filter cartridge shell, wherein the tubular filter medium 2 extends from one end of the filter cartridge to the other end, the filter cartridge shell is a hollow structure, and extends from one end cap 1 of the filter cartridge to the other end cap 1.

[0048] Wherein, a cross section is obtained transversely to the tube axis at any position along the length of the tubular filter medium 2, and any cross section defines an inner circumference. There is a straight line segment at the lower part of the longitudinal position of the inner circumference of the filter tube cross section. The straight line segment that intersects the inner circumference perpendicular to the center of the straight line segment is the longitudinal maximum distance Vmax. The maximum distance of the line segment connecting any two points on the inner circumference that are perpendicular to the longitudinal maximum distance is defined as the transverse maximum distance Hmax.

[0049] Among them, the maximum horizontal distance segment is the maximum distance between two points on the inner perimeter that is perpendicular to the maximum vertical distance segment; there are multiple maximum horizontal distance segments in the cross section.

[0050] Among them, the longitudinal maximum distance line segment axis is the axis of symmetry of the cross section, and the longitudinal maximum distance line segment axis equally divides the maximum transverse distance line segment;

[0051] The intersection of the maximum longitudinal distance Vmax and the maximum lateral distance Hmax divides the maximum longitudinal distance Vmax into two segments, with the shorter segment being longer than 0.4 times the maximum longitudinal distance Vmax.

[0052] The inner perimeter of the cross section is divided equally by the longitudinal maximum distance line segment axis; any maximum lateral distance line segment is also divided equally by the longitudinal maximum distance line segment axis.

[0053] The inner perimeter of the cross-section is not continuously curved, and is a set of line segments consisting of at least one straight line segment and multiple curved segments.

[0054] Among them, the inner circumference contains at least one straight segment with a length >10mm.

[0055] Among them, the longitudinal maximum distance line segment has one end that perpendicularly bisects a straight line segment located at the upper or lower part of the inner circumference, and the other end that bisects a curved line segment located at the lower or upper part.

[0056] Among them, the line segment with the maximum lateral distance is a straight or curved segment whose two ends are perpendicular to the left and right parts of the inner perimeter.

[0057] There is one and only one line of symmetry on the inner circumference of the filter cartridge cross-section, and the line of symmetry coincides with the axis of the longitudinal maximum distance line segment.

[0058] Second Embodiment

[0059] Please see Figure 4-6 The difference between this embodiment and the first embodiment is that:

[0060] The inner support frame 3 consists of multiple U-shaped slots, which are fixedly installed on the inner wall of the inner support frame 3. The number of U-shaped slots is 3.

[0061] Here, a cross section is obtained transversely to the tube axis at any position along the length of the filter tube. Each cross section defines an outer perimeter. The outer perimeter of the cross section is not continuously curved and is a set of line segments consisting of at least one straight line segment and multiple curved segments.

[0062] Among them, the outer perimeter contains at least one straight segment with a length ≥ 11 mm.

[0063] like Figure 6 As shown, the two ends of the U-shaped groove abut against the inner side of the end cover 1, which plays a supporting role. In any cross section, the U-shaped groove protrudes from the inner side of the end cover 1.

[0064] like Figure 8 The inner and outer edges of the end cap 1 are bent towards the U-shaped groove, forming a hollow structure. The material of the end cap 1 has good strength to ensure a good seal during long-term use and prevent dust leakage.

[0065] The material of the end cap 1 can be selected according to the specific use environment and requirements, such as ABS, PE, PP, PA, etc. In order to ensure the fixed sealing strength of the irregular filter cartridge, metal material can also be selected to adapt to different working conditions.

[0066] The tubular filter medium 2 is a pleated filter material that can efficiently filter and carry dust.

[0067] The above are merely embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. An irregularly shaped filter cartridge, comprising a filter cartridge shell disposed on the outside and inserted between two end caps, and a tubular filter medium disposed on the inside of the filter cartridge shell, wherein the tubular filter medium extends from one end of the filter cartridge to the other end, and the filter cartridge shell is a hollow structure that extends from one end cap of the filter cartridge to the other end cap. wherein A cross section is obtained transversely to the tube axis at any position along the length of the tubular filter medium. Any cross section defines an inner circumference. There is a straight line segment at the lower part of the longitudinal position of the inner circumference of the filter tube cross section. The straight line segment that intersects the inner circumference perpendicular to the center of the straight line segment is the longitudinal maximum distance Vmax. The maximum distance of the line segment connecting any two points on the inner circumference that are perpendicular to the longitudinal maximum distance is defined as the transverse maximum distance Hmax. Its features are: Among them, the maximum horizontal distance segment is the maximum distance between two points on the inner perimeter that is perpendicular to the maximum vertical distance segment; the cross-section has multiple maximum horizontal distance segments. Wherein, the longitudinal maximum distance line segment axis is the axis of symmetry of the cross section, and the longitudinal maximum distance line segment axis equally divides the maximum transverse distance line segment; The intersection of the maximum longitudinal distance Vmax and the maximum lateral distance Hmax divides the maximum longitudinal distance Vmax into two segments, with the shorter segment being longer than 0.4 times the maximum longitudinal distance Vmax. The inner perimeter of the cross section is divided equally by the longitudinal maximum distance line segment axis; any maximum lateral distance line segment is also divided equally by the longitudinal maximum distance line segment axis.

2. A profiled filter cartridge according to claim 1, characterised in that: The inner perimeter of the cross-section is not continuously curved, but is a set of line segments consisting of at least one straight line segment and multiple curved segments.

3. A profiled filter cartridge according to claim 2, characterised in that: The inner circumference contains at least one straight segment with a length >10mm.

4. A profiled filter cartridge according to claim 2, wherein: The longest longitudinal distance line segment has one end that perpendicularly bisects a straight line segment located at the upper or lower part of the inner circumference, and the other end that bisects a curved line segment located at the lower or upper part.

5. A profiled filter cartridge according to claim 2, wherein: The maximum lateral distance line segment is a straight or curved segment whose two ends are perpendicular to the left and right sides of the inner perimeter.

6. A profiled filter cartridge according to claim 2, wherein: There is one and only one line of symmetry on the inner circumference of the cross-section of the filter cartridge, and the line of symmetry coincides with the axis of the longitudinal maximum distance line segment.

7. A filter cartridge according to any one of claims 1-3, wherein: It also includes an inner support frame, which consists of multiple U-shaped slots that are asymmetrically fixed to the inner wall of the inner support frame.

8. The irregularly shaped filter cartridge according to claim 7, characterized in that: The longest longitudinal distance line segment has one end that perpendicularly bisects a straight line segment located at the upper or lower part of the inner circumference, and the other end that bisects a curved line segment located at the lower or upper part.

9. A profiled filter cartridge according to claim 7, characterized in that: The maximum lateral distance line segment is a straight or curved segment whose two ends are perpendicular to the left and right sides of the inner perimeter.

10. A profiled filter cartridge according to claim 7, characterized in that: There is one and only one line of symmetry on the inner circumference of the cross-section of the filter cartridge, and the line of symmetry coincides with the axis of the longitudinal maximum distance line segment.

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