A multifunctional air filter element

Abstract

The utility model discloses a multifunctional air filter element, include: filter core body, its both ends are equipped with air inlet end cover and bottom end cover respectively, first filter screen layer, water absorption particulate layer, second filter screen layer, filter paper layer and the framework of supporting filter core structure are sequentially arranged along the gas flow direction, and the circumference direction of the lateral wall of framework is provided with air outlet hole, water absorption particulate layer is filled with high water absorbency particle and is used for adsorbing the moisture in gas, filter paper layer is located between second filter screen layer and the framework and is used for filtering the solid impurity in gas, and the framework is porous support structure, and the axial length of filter core body is penetrated, the modularization design of water absorption particulate layer, grading filter screen, gradient filter paper and spiral framework, has solved the problem that the existing filter core is damp, and the low filtration efficiency, poor structural stability and other problems, combines dehumidification and impurity removal, and single filter core structure can realize multifunction, saves manual cost and installation space.

Description

Technical Field

[0001] This utility model relates to the field of air purification technology, and in particular to a multifunctional air filter. Background Technology

[0002] Existing air filters can only remove impurities and do not have a water removal function. In the aviation industry, air filters are used in environments where the air may contain moisture. For example, when an aircraft is at high altitude, the outer cabin is in a low-humidity environment. If there is moisture in the air ducts, it will cause icing, resulting in filter blockage and system malfunction. Utility Model Content

[0003] To address the problems of existing filter elements being susceptible to moisture, having low filtration efficiency, and exhibiting poor structural stability, this utility model provides a multifunctional air filter element. Through a layered modular design, it achieves gas moisture adsorption, impurity classification and interception, and filter element structural reinforcement, significantly improving the reliability and applicability of the filter element.

[0004] The purpose of this invention is to provide a multifunctional air filter element, thereby solving the aforementioned problems existing in the prior art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A multifunctional air filter element, comprising:

[0007] The filter element body has an air inlet end cap and a bottom end cap at both ends;

[0008] The filter consists of a first filter layer, a water-absorbing particulate layer, a second filter layer, a filter paper layer, and a frame that supports the filter element structure, arranged sequentially along the gas flow direction. Air outlet holes are provided along the circumferential direction of the frame sidewall.

[0009] The absorbent particle layer is filled with highly absorbent particles and is used to adsorb moisture from the gas.

[0010] The filter paper layer is located between the second filter mesh layer and the frame, and is used to filter solid impurities in the gas.

[0011] The skeleton is a porous support structure that extends axially through the filter element body.

[0012] In some specific embodiments, the water-absorbing particulate layer is detachably disposed at the front end of the filter element, and its filling material can be replaced with activated carbon particles or magnetic metal particles, which are used to adsorb odor molecules or magnetic impurities in the gas, respectively.

[0013] In some specific embodiments, the mesh density of the first filter layer and the second filter layer are different, with the mesh density of the first filter layer being smaller than that of the second filter layer, for graded interception of solid particles of different sizes.

[0014] In some specific embodiments, the air inlet end cap and the bottom end cap are connected to the filter element body by a snap-fit ​​structure, and the inner wall of the end cap is provided with a sealing ring to prevent gas leakage.

[0015] In some specific embodiments, the filter paper layer is composed of multiple layers of gradient density filter paper stacked together, with the pore density of each layer of filter paper gradually decreasing along the gas flow direction.

[0016] In some specific embodiments, the filter element is a cylindrical structure, suitable for aircraft engine air intake systems, and the thickness of the water-absorbing particulate layer accounts for 1 / 5 to 1 / 3 of the total length of the filter element.

[0017] The beneficial effects of this utility model are as follows: This utility model discloses a multifunctional air filter element, comprising: a filter element body with an inlet end cap and a bottom end cap at both ends; a water-absorbing particle layer, a first filter screen layer, a second filter screen layer, and a filter paper layer arranged sequentially along the gas flow direction; and a frame supporting the filter element structure, with air outlet holes opened along the circumferential direction of the frame sidewall; the water-absorbing particle layer is filled with highly absorbent particles and is used to absorb moisture in the gas; the filter paper layer is located between the second filter screen layer and the frame and is used to filter solid impurities in the gas; the frame is a porous support structure that extends through the axial length of the filter element body. This utility model combines dehumidification and impurity removal, and a single filter element structure can achieve multiple functions, saving labor costs and installation space. The internal water-absorbing particles can be replaced with other materials as needed, such as activated carbon for odor absorption; magnetic metal for adsorbing metal debris in the air, etc., to achieve different functions according to different application scenarios. Attached Figure Description

[0018] Figure 1 This is a cross-sectional structural diagram of a multifunctional air filter element structure according to this utility model.

[0019] In the attached diagram, 1 is the air inlet end cap; 2 is the first filter layer; 3 is the water-absorbing particulate layer; 4 is the second filter layer; 5 is the filter paper layer; 6 is the frame; and 7 is the bottom end cap. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the scope of the present utility model.

[0021] Reference Figure 1 The multifunctional air filter shown includes a filter body with an air inlet end cap 1 and a bottom end cap 7 at both ends.

[0022] The first filter layer 2, the water-absorbing particulate layer 3, the second filter layer 4, the filter paper layer 5, and the frame 6 supporting the filter element structure are arranged sequentially along the gas flow direction. The frame 6 has an air outlet hole in the circumferential direction along the side wall of the frame 6. The gas enters from the air inlet end cover 1 and finally exits from the air outlet hole of the frame 6.

[0023] The water-absorbing particulate layer 3 is filled with highly absorbent particles and is used to adsorb moisture in the gas.

[0024] The filter paper layer 5 is located between the second filter mesh layer 4 and the frame 6, and is used to filter solid impurities in the gas.

[0025] The skeleton 6 is a porous support structure that extends through the axial length of the filter element body.

[0026] In this embodiment, it should be noted that the water-absorbing particulate layer 3 is filled with highly absorbent particles (such as polymer resin), which can adsorb moisture in the gas and prevent the filter element from freezing; this layer is removable and replaceable, and the material can be replaced with activated carbon particles (adsorbing odors) or magnetic metal particles (adsorbing magnetic impurities).

[0027] Graded interception of filter layers: The mesh density of the first filter layer 2 is less than that of the second filter layer 4, which is used to grade and intercept large and medium-sized particles, reducing the load on the filter paper layer 5.

[0028] Filter paper layer 5: It is composed of multiple layers of gradient density filter paper, with the pore density gradually decreasing along the airflow direction, which can effectively filter out tiny solid impurities.

[0029] In some specific embodiments, the water-absorbing particulate layer 3 is detachably disposed at the front end of the filter element, and its filling material can be replaced with activated carbon particles or magnetic metal particles, which are used to adsorb odor molecules or magnetic impurities in the gas, respectively.

[0030] In some specific embodiments, the mesh density of the first filter layer 2 and the second filter layer 4 are different, with the mesh density of the first filter layer 2 being smaller than that of the second filter layer 4, for graded interception of solid particles of different sizes.

[0031] It should be noted that the filter density can be adjusted and selected according to actual needs.

[0032] In this embodiment, the skeleton 6 adopts a spiral metal wire support structure, and the spiral gap forms a gas flow channel. At the same time, it is closely attached to the filter paper layer 5 to prevent the filter paper from collapsing.

[0033] End cap sealing design: The inlet end cap 1 and the bottom end cap 7 are connected to the filter element body via a snap-fit ​​structure. A sealing ring is provided on the inner wall of the end cap to ensure no gas leakage. It should be noted that the sealing ring is made of epoxy resin.

[0034] In some specific embodiments, the air inlet end cap 1 and the bottom end cap 7 are connected to the filter element body by a snap-fit ​​structure, and the inner wall of the end cap is provided with a sealing ring to prevent gas leakage.

[0035] In some specific embodiments, the filter paper layer 5 is composed of multiple layers of gradient density filter paper stacked together, and the pore density of each layer of filter paper gradually decreases along the gas flow direction.

[0036] In some specific embodiments, the filter element is a cylindrical structure, suitable for aircraft engine air intake systems, and the thickness of the water-absorbing particulate layer 3 accounts for 1 / 5 to 1 / 3 of the total length of the filter element.

[0037] In this embodiment, the filter element is cylindrical in shape to meet the space requirements of the air intake system of an aircraft engine; the thickness of the water-absorbing particulate layer 3 accounts for 1 / 5 to 1 / 3 of the total length of the filter element, ensuring a balance between dehumidification efficiency and filter element volume.

[0038] Filter assembly

[0039] Place the frame 6 in the center of the filter element, and wrap the filter paper layer 5, the second filter screen layer 4, the first filter screen layer 2 and the water-absorbing particulate layer 3 in sequence. Each layer is fixed by epoxy adhesive.

[0040] The air inlet end cap 1 and the bottom end cap 7 are connected to the filter element body by snaps, and the sealing ring is pressed to form an airtight structure.

[0041] Workflow

[0042] Gas enters through the inlet cover 1, passes through the first filter layer 2 to intercept large particles, the water-absorbing particulate matter layer 3 to dehumidify, the second filter layer 4 to intercept medium particles, and the filter paper layer 5 to filter micro particles, and finally the dry and clean gas is discharged from the bottom cover 7.

[0043] Water removal process: After the gas enters the filter element through the air inlet, it first passes through the molecular sieve layer. The molecular sieve layer is made of highly absorbent material, which can effectively adsorb moisture in the gas and prevent moisture from entering the subsequent filtration layers.

[0044] Filtration process: After the gas has been dehydrated, it continues to pass through the filter paper layer, which can filter out tiny solid impurities in the gas, such as dust and particulate matter.

[0045] It should be noted that this utility model can also be designed to absorb odors and metal debris according to actual needs, specifically as follows:

[0046] Odor adsorption: After the gas has been dehydrated, it passes through an activated carbon layer, which adsorbs odor molecules in the gas.

[0047] Adsorption of metal debris: The gas continues to pass through the magnetic metal layer, which is able to adsorb metal debris in the gas.

[0048] Exhaust process: The filtered, dry, and clean gas is discharged from the outlet and enters the subsequent system.

[0049] Replaceable design examples

[0050] If used in an environment containing oily gases, the water-absorbing particulate layer 3 can be replaced with activated carbon particles to absorb both moisture and oil mist; if used in a working condition containing metal dust, it can be replaced with magnetic metal particles to enhance the adsorption capacity of metal debris.

[0051] By adopting the above-disclosed technical solution of this utility model, the following beneficial effects are obtained:

[0052] This utility model discloses a multifunctional air filter element, comprising:

[0053] The filter element body has an inlet end cap 1 and a bottom end cap 7 at both ends. Along the gas flow direction, it consists of a water-absorbing particle layer 3, a first filter screen layer 2, a second filter screen layer 4, a filter paper layer 5, and a supporting frame 6. The water-absorbing particle layer 3 is filled with highly absorbent particles to absorb moisture from the gas. The filter paper layer 5, located between the second filter screen layer 4 and the frame 6, filters solid impurities from the gas. The frame 6 is a porous support structure that extends axially through the filter element body. This invention combines dehumidification and impurity removal, allowing a single filter element structure to achieve multiple functions, saving labor costs and installation space. The internal water-absorbing particles can be replaced with other materials as needed, such as activated carbon for odor absorption, or magnetic metal for adsorbing metal debris from the air, achieving different functions depending on the application scenario.

[0054] Multifunctional integration: Through the synergistic effect of the water-absorbing layer, graded filter screen and gradient filter paper, it achieves dehumidification and impurity interception in one.

[0055] Long life design: The frame 6 enhances structural stability, and the removable absorbent layer reduces maintenance costs.

[0056] Aviation adaptability: The cylindrical structure and optimized layer thickness meet the dual requirements of aero-engine systems for filter volume and efficiency.

[0057] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A multi-functional air filter cartridge, characterized by, include: The filter body has an air inlet end cap (1) and a bottom end cap (7) at both ends. The first filter layer (2), the water-absorbing particulate layer (3), the second filter layer (4), the filter paper layer (5), and the frame (6) supporting the filter element structure are arranged sequentially along the gas flow direction, and the air outlet is provided along the circumferential direction of the frame sidewall. The skeleton (6) is a spiral metal wire support structure, and the gap between the spirals forms a gas flow channel; The absorbent particulate layer (3) is detachably disposed at the front end of the filter element; it is filled with highly absorbent particles, which are polymer resin particles used to adsorb moisture in the gas. The filter paper layer (5) is located between the second filter mesh layer (4) and the skeleton (6). The filter paper layer (5) is composed of multiple layers of gradient density filter paper, and the pore density of each layer of filter paper gradually decreases along the gas flow direction; it is used to filter solid impurities in the gas. The air inlet end cap (1) and the bottom end cap (7) are connected to the filter element body by a snap-fit ​​structure, and the inner wall of the end cap is provided with a sealing ring to prevent gas leakage. The skeleton (6) is a porous support structure that extends through the axial length of the filter element body.

2. The multi-functional air filter cartridge of claim 1, wherein, The first filter layer (2) and the second filter layer (4) have different mesh densities. The mesh density of the first filter layer (2) is smaller than that of the second filter layer (4). They are used to grade and intercept solid particles of different sizes. The first filter layer (2) is used to intercept large-diameter particles, and the second filter layer (4) is used to intercept medium-diameter particles, so as to reduce the load on the filter paper layer (5).

3. The multi-functional air filter cartridge of claim 1 wherein, The filter element is cylindrical in shape and is suitable for the air intake system of aero-engines. The thickness of the water-absorbing particulate layer (3) accounts for 1 / 5 to 1 / 3 of the total length of the filter element. To ensure a balance between dehumidification efficiency and filter volume.

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