Air multi-stage filter cartridge

Abstract

The utility model relates to a kind of air multistage filtration filter core, including bottom cover and top cover, further include two integrated skeletons and two groups of filter material groups, two integrated skeletons are symmetrically distributed and installed between bottom cover and top cover, two groups of filter material groups are symmetrically inserted in two integrated skeletons, the integrated skeleton includes arc inner cover, two positioning clamping blocks and several arc outer hoop strip groups, the outer wall of arc inner cover is formed with multiple flow guide holes that penetrate arc inner cover, two positioning clamping blocks are formed at the two ends of arc inner cover respectively. Through the cooperation of integrated skeleton and filter material group, the filter core can perform multistage filtration through filter material group on one hand, improve the effect of air filtration treatment, on the other hand, the filter core can be easily disassembled and replaced with filter material group, and the filter core as a whole can be replaced without, thereby reducing the cost of filter replacement and maintenance.

Description

Technical Field

[0001] This utility model relates to the field of air filter technology, specifically to a multi-stage air filter element. Background Technology

[0002] An air filter is a device that uses porous filter materials to capture dust from a gas-solid two-phase flow and purify the gas. The main component of an air filter is the filter element structure containing filter materials.

[0003] Traditional filter cartridges are usually designed for single use, and the entire cartridge must be discarded after the filter material fails, which easily leads to material waste. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] This invention provides a multi-stage air filter element that solves the problem of having to discard the entire filter material after it fails, which easily leads to material waste.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a multi-stage air filter element, including a bottom cover and a top cover, as well as two integrated frames and two sets of filter media. The two integrated frames are symmetrically distributed and installed between the bottom cover and the top cover. The two sets of filter media are symmetrically inserted into the two integrated frames. The integrated frame includes an arc-shaped inner cover, two positioning blocks, and several arc-shaped outer bands. Multiple guide holes penetrating the arc-shaped inner cover are formed on the outer wall of the arc-shaped inner cover. The two positioning blocks are respectively formed at both ends of the arc-shaped inner cover, and both positioning blocks are securely connected to the bottom cover and the top cover. Several sets of arc-shaped outer bands are spaced apart along the axial direction of the arc-shaped inner cover on the outer wall, and each set of arc-shaped outer bands has three slots. The filter media are positioned and inserted into the outer side of the arc-shaped inner cover through the slots on the arc-shaped outer bands.

[0008] Preferably, the guide holes formed on the arc-shaped inner cover are staggered with the arc-shaped outer band group.

[0009] In a further preferred embodiment, the bottom cover and the top cover have two bottom slots and two top slots respectively formed on their opposing sides, and the bottom cover and the top cover are respectively secured to the positioning block through the bottom slots and the top slots.

[0010] In a further preferred embodiment, the filter media assembly comprises an outer filter layer, a middle filter layer, and an inner filter layer, respectively, with the outer filter layer being a metal mesh structure having multiple filter holes formed on its surface, the middle filter layer being a pleated filter media composed of polypropylene and polyethylene terephthalate, and the inner filter layer being a honeycomb activated carbon filter layer.

[0011] (III) Beneficial Effects

[0012] Compared with the prior art, this utility model provides a multi-stage air filter element, which has the following beneficial effects:

[0013] In this invention, by integrating the frame and the filter media assembly, the filter element can perform multi-stage filtration through the filter media assembly, improving the air filtration effect. On the other hand, it allows the filter element to be easily disassembled and the filter media assembly to be replaced without replacing the entire filter element, thereby reducing the cost of filter element replacement and maintenance. Attached Figure Description

[0014] Figure 1 This is an exploded structural diagram of an air multi-stage filter element according to the implementation plan;

[0015] Figure 2 for Figure 1 A schematic diagram of the structure of a multi-stage air filter cartridge assembly;

[0016] Figure 3 This is a schematic diagram of the integrated skeleton according to the implementation plan.

[0017] In the diagram: 10. Integrated frame; 11. Arc-shaped inner cover; 12. Air guide hole; 13. Positioning block; 14. Arc-shaped outer hoop assembly; 15. Slot; 20. Bottom cover; 21. Bottom slot; 30. Top cover; 31. Top slot; 32. Air outlet; 40. External filter layer; 50. Middle filter layer; 60. Internal filter layer. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Please see Figure 1 and Figure 2A multi-stage air filter element includes two integrated frames 10, a bottom cover 20, a top cover 30, and two sets of filter media. The two integrated frames 10 are symmetrically distributed and installed between the bottom cover 20 and the top cover 30. The two sets of filter media are symmetrically and replaceably inserted into the two integrated frames 10. The air to be filtered can be filtered through the two sets of filter media, and then the filtered air is discharged through the air outlet 32 ​​formed on the top cover 30.

[0020] See Figure 2 and Figure 3 The integrated frame 10 includes an arc-shaped inner cover 11, two positioning blocks 13, and several arc-shaped outer bands 14. Multiple airflow guide holes 12 are formed on the outer wall of the arc-shaped inner cover 11 to prevent it from obstructing airflow. The two positioning blocks 13 are formed at both ends of the arc-shaped inner cover 11. Two bottom slots 21 and two top slots 31 are formed on the opposing sides of the bottom cover 20 and top cover 30, respectively. The two positioning blocks 13 can be fastened to the bottom slots 21 and top slots 31 on the bottom cover 20 and top cover 30 for assembly and fixation. Several arc-shaped outer bands 14 are formed at intervals along the axial direction of the arc-shaped inner cover 11 on the outer wall, and the airflow guide holes 12 formed on the arc-shaped inner cover 11 are staggered with the arc-shaped outer bands 14 to prevent the arc-shaped outer bands 14 from blocking the airflow guide holes 12. Each arc-shaped outer band 14 has three slots 15, and the filter media assembly can be positioned and inserted into the outside of the arc-shaped inner cover 11 through the slots 15 on the arc-shaped outer band 14 for air filtration.

[0021] In this embodiment, the filter media assembly includes an outer filter layer 40, a middle filter layer 50, and an inner filter layer 60, respectively, arranged from the outside to the inside. The outer filter layer 40 can be composed of a metal mesh with multiple filter holes formed on its surface, and can perform preliminary filtration of larger impurities. The middle filter layer 50 can be a pleated filter media composed of polypropylene and polyethylene terephthalate, which can serve as the main filter media for air filtration. The inner filter layer 60 can be a honeycomb activated carbon filter layer, which can adsorb and filter odors and volatile organic compounds (VOCs) in the air.

[0022] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and 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 of this utility model; the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In addition, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances. Moreover, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0023] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A multi-stage air filter element, comprising a bottom cover (20) and a top cover (30), characterized in that, It also includes two integrated frames (10) and two sets of filter media. The two integrated frames (10) are symmetrically distributed and installed between the bottom cover (20) and the top cover (30). The two sets of filter media are symmetrically inserted into the two integrated frames (10). The integrated frame (10) includes an arc-shaped inner cover (11), two positioning blocks (13), and several arc-shaped outer bands (14). Multiple flow guide holes (12) penetrating the arc-shaped inner cover (11) are formed on the outer wall of the arc-shaped inner cover (11). The two positioning blocks (13) are formed at both ends of the arc-shaped inner cover (11), and both positioning blocks (13) are fixedly connected to the bottom cover (20) and the top cover (30). Several arc-shaped outer bands (14) are formed at intervals along the axial direction of the arc-shaped inner cover (11) on the outer wall, and each arc-shaped outer band (14) has three slots (15). The filter material group is positioned and inserted into the outside of the arc-shaped inner cover (11) through the slots (15) opened on the arc-shaped outer bands (14).

2. The multi-stage air filter element according to claim 1, characterized in that: The guide holes (12) formed on the arc-shaped inner cover (11) are misaligned with the arc-shaped outer band group (14).

3. The multi-stage air filter element according to claim 1 or 2, characterized in that: The bottom cover (20) and the top cover (30) have two bottom slots (21) and two top slots (31) respectively on their opposite sides. The bottom cover (20) and the top cover (30) are fixedly connected to the positioning block (13) through the bottom slots (21) and the top slots (31) respectively.

4. The multi-stage air filter element according to claim 1, characterized in that: The filter media assembly includes an outer filter layer (40), a middle filter layer (50), and an inner filter layer (60) from the outside to the inside.

5. The multi-stage air filter element according to claim 4, characterized in that: The external filter layer (40) is configured as a metal mesh structure with multiple filter holes formed on its surface.

6. The multi-stage air filter element according to claim 5, characterized in that: The middle filter layer (50) is a pleated filter material composed of polypropylene and polyethylene terephthalate.

7. The multi-stage air filter element according to claim 6, characterized in that: The internal filter layer (60) is configured as a honeycomb activated carbon filter layer.

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