A composite filter screen

Abstract

This utility model discloses a composite filter, including a frame and filter modules. The frame contains horizontal and vertical ribs that divide the interior into multiple grid-like filter windows. Multiple filter modules are arranged correspondingly within these filter windows. This utility model achieves comprehensive adjustment of filter performance by incorporating filter modules with different functional combinations into the grid-like filter windows within the frame. When a specific air handling capacity needs to be enhanced, the number of corresponding filter modules is increased, thus achieving functional customization and modularization.

Description

Technical Field

[0001] This utility model relates to the field of air purifier filter technology, specifically to a composite filter. Background Technology

[0002] An air purifier is a device that removes pollutants from the air through physical or chemical means, primarily used to improve indoor air quality. The filter is the core component of any air purifier, removing pollutants mainly through physical interception or chemical adsorption. This includes using technologies such as filtration, adsorption, and decomposition to treat pollutants and remove particulate matter (PM2.5, pollen), gaseous pollutants (formaldehyde, odors), and microorganisms (bacteria, viruses). To remove different pollutants, different types of filter modules are needed. Existing filters can only remove one type of pollutant at a time. Removing different substances requires multiple different filters, resulting in a complex installation structure that is inconvenient for replacement and cleaning. Utility Model Content

[0003] The purpose of this invention is to solve the above-mentioned technical problems and provide a composite filter.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A composite filter includes a frame and filter modules. The frame is provided with horizontal and vertical ribs, which divide the interior of the frame into multiple grid-like filter windows. Multiple filter modules are provided, and the multiple filter modules are correspondingly arranged in the filter windows.

[0006] In one embodiment, the filtration module includes a first filter block, a second filter block, and a third filter block. The first filter block, the second filter block, and the third filter block are made of different materials and are used to treat different pollutants. The first filter block, the second filter block, and the third filter block are fixed in different filter windows.

[0007] Specifically, the first filter block is a mesh module made of activated carbon powder, the second filter block is a formaldehyde removal catalyst impregnated on a mesh substrate, and the third filter block is made of molecular sieve ceramic with micropores formed by adding a pore-forming agent to a ceramic catalyst. The first filter block uses mesh activated carbon material, which can adsorb harmful substances in the air while filtering particulate matter; the second filter block decomposes formaldehyde through the formaldehyde removal catalyst; and the third filter block removes odors and particulate matter through molecular sieves.

[0008] Furthermore, the frame is integrally formed with the transverse stiffeners and longitudinal stiffeners.

[0009] In another embodiment, the filtration module comprises multiple filter layers made of different materials, each layer designed to treat different pollutants. The entire filter consists of multiple filter layers made of different materials, thereby achieving different filtration and purification functions; and different functional layers can be configured according to performance requirements.

[0010] Furthermore, the filtration module includes a first filter layer, a second filter layer, and a third filter layer integrated in sequence. The first filter layer, the second filter layer, and the third filter layer are made of different materials and are used to treat different pollutants. The first filter layer is a mesh plate made of activated carbon powder, the second filter layer is a mesh substrate plate impregnated with a formaldehyde removal catalyst, and the third filter layer is a filter plate made of molecular sieve ceramic with micropores formed by adding a ceramic catalyst and a pore-forming agent.

[0011] Furthermore, the filtration module also includes a fourth filtration layer, which is a catalyst for removing VOC gases impregnated on a mesh substrate.

[0012] Furthermore, the filtration module also includes an isolation mesh layer located between the second and third filter layers and between the third and fourth filter layers. By setting the isolation mesh layer to separate the functional layers containing different catalysts, chemical reactions between different catalysts that could lead to catalyst deactivation are avoided.

[0013] In another embodiment, the different filter layers in the filter module are fixed together as one unit.

[0014] In another embodiment, the filtration module includes a long-lasting catalytic filter, which is composed of multiple stacked layers of activated carbon and formaldehyde decomposition catalyst filter integrated into one unit. The activated carbon buffers and adsorbs the gas, enhancing the filter's short-term processing capacity while protecting the catalyst, preventing it from being poisoned and becoming ineffective, thus extending the catalyst's lifespan and increasing the filter's lifespan.

[0015] The composite filter provided by this utility model has the following beneficial effects: by dividing the frame into different grid-like filter windows, and installing filter modules with different functional combinations in different filter windows, the filter performance can be comprehensively adjusted. When a certain air handling capacity needs to be enhanced, the number of corresponding filter modules can be increased, realizing the customization and modularization of functions; by combining filter modules with different functions, different functions such as VOCs, formaldehyde, and pet odors can be superimposed to meet the customized needs of different user scenarios. Attached Figure Description

[0016] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings:

[0017] Figure 1A schematic diagram of the structure of a composite filter provided by this utility model;

[0018] Figure 2 A side view cross-sectional structural diagram of a composite filter screen provided by this utility model;

[0019] Figure 3 This is a schematic side cross-sectional view of the filtering module in the embodiment. Figure 1 ;

[0020] Figure 4 This is a schematic side cross-sectional view of the filtering module in the embodiment. Figure 2 ;

[0021] Figure 5 This is a schematic side cross-sectional view of the filtering module in the embodiment. Figure 3 .

[0022] The following are the labels in the diagram: 1. Frame; 2. Horizontal stiffener; 3. Vertical stiffener; 4. Filter module; 41. First filter block; 42. Second filter block; 43. Third filter block; 44. First filter layer; 45. Second filter layer; 46. Third filter layer; 47. Isolation mesh layer; 48. Fourth filter layer; 49. Long-lasting catalytic filter. Detailed Implementation

[0023] It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0024] 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 a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0025] It should be noted that all directional indications (such as up-down-left-right-forward-backward...) in the embodiments of this utility model are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly. The connection can be a direct connection or an indirect connection.

[0026] like Figures 1-2 As shown, a composite filter includes a frame 1 and a filter module 4. The frame 1 is provided with horizontal stiffeners 2 and vertical stiffeners 3, which divide the interior of the frame 1 into multiple grid-like filter windows. Multiple filter modules 4 are provided, and multiple filter modules 4 are correspondingly arranged in the filter windows.

[0027] By adopting the above technical solution, different filter windows with different functional combinations are installed in the different filter windows of the frame 1, so as to realize the comprehensive adjustment of filter performance. When a certain air handling capacity needs to be enhanced, the number of corresponding filter modules 4 is increased, so as to realize the customization and modularization of functions.

[0028] In one embodiment, such as Figure 1-2 As shown, the filter module 4 includes a first filter block 41, a second filter block 42, and a third filter block 43. These three filter blocks are made of different materials and are used to treat different pollutants. They are fixed in different filter windows. By using different materials to treat different pollutants, the first filter block 41, the second filter block 42, and the third filter block 43 achieve the filtration or decomposition of different pollutants, thus enabling the composite filter to perform multiple treatment functions. Specifically, the first filter block 41, the second filter block 42, and the third filter block 43 are solid structures and can be inserted into the filter window through interference fit, adhesive bonding, or other methods.

[0029] Specifically, the first filter block 41 is a mesh module made of activated carbon powder, the second filter block 42 is a formaldehyde removal catalyst impregnated on a mesh substrate, and the third filter block 43 is made of molecular sieve ceramic with micropores formed by adding a ceramic catalyst and a pore-forming agent. The first filter block 41 uses mesh activated carbon material, which can adsorb harmful substances in the air while filtering particulate matter; the second filter block 42 decomposes formaldehyde through the formaldehyde removal catalyst, and the third filter block 43 removes odors and particulate matter through molecular sieves.

[0030] Specifically, the frame 1 is integrally formed with the horizontal stiffener 2 and the vertical stiffener 3.

[0031] In another embodiment, such as Figure 3 As shown, the filter module 4 includes multiple filter layers made of different materials, each layer designed to treat different pollutants. The entire filter consists of multiple filter layers made of different materials, thus achieving different filtration and purification functions; and different functional layers can be configured according to performance requirements.

[0032] Specifically, the filtration module 4 includes a first filter layer 44, a second filter layer 45, and a third filter layer 46 integrated sequentially. These three layers are made of different materials and are used to treat different pollutants. The first filter layer 44 is a mesh plate made from pressed activated carbon powder; the second filter layer 45 is a mesh substrate impregnated with a formaldehyde removal catalyst; and the third filter layer 46 is a molecular sieve ceramic filter plate made by adding a pore-forming agent to a ceramic catalyst to form micropores. By using different filter layers, different pollutants can be adsorbed or decomposed, thus integrating different functions into one unit.

[0033] In a preferred embodiment, such as Figure 4 As shown, the filter module 4 also includes a fourth filter layer 48, which is a catalyst for removing VOC gas impregnated on a mesh substrate.

[0034] In a preferred embodiment, such as Figure 4 As shown, the filter module 4 further includes an isolation mesh layer 47, which is located between the second filter layer 45 and the third filter layer 46, and between the third filter layer 46 and the fourth filter layer 48. By setting the isolation mesh layer 47 to separate the functional layers containing different catalysts, chemical reactions between different catalysts that could lead to catalyst deactivation are avoided.

[0035] Specifically, the different filter layers in the filter module 4 are fixedly connected as one unit. By fixing the different filter layers together, different functions are superimposed into one, thereby meeting the customized needs of different user scenarios. Moreover, the fixedly connected filter module 4 is inserted into the filter window for easy replacement and installation.

[0036] In another option, such as Figure 5 As shown, the filtration module 4 includes a long-lasting catalytic filter 49, which is composed of multiple stacked layers of activated carbon and formaldehyde decomposition catalyst filter integrated into one unit. The activated carbon buffers and adsorbs the gas, enhancing the filter's short-term processing capacity while protecting the catalyst, preventing it from being poisoned and becoming ineffective, thus extending the catalyst's lifespan and increasing the filter's lifespan. When the indoor air is relatively clean, the gas adsorbed in the activated carbon slowly escapes to the catalyst surface for decomposition, restoring the activated carbon's adsorption sites. This significantly enhances the filter's short-term processing capacity and extends its lifespan.

[0037] The parts not covered in this technical solution can be implemented using existing technologies.

[0038] The foregoing has shown and described the basic principles, main features, and characteristics of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model includes the appended claims and their equivalents.

Claims

1. A composite filter screen, characterized by: It includes a frame (1) and a filter module (4). The frame (1) is provided with a horizontal stiffener (2) and a vertical stiffener (3). The horizontal stiffener (2) and the vertical stiffener (3) divide the interior of the frame (1) into multiple grid-like filter windows. Multiple filter modules (4) are provided, and multiple filter modules (4) are correspondingly arranged in the filter windows.

2. The composite screen of claim 1 wherein: The filter module (4) includes a first filter block (41), a second filter block (42), and a third filter block (43). The first filter block (41), the second filter block (42), and the third filter block (43) are made of different materials and are used to treat different pollutants. The first filter block (41), the second filter block (42), and the third filter block (43) are fixed in different filter windows.

3. The composite screen of claim 2 wherein: The first filter block (41) is a mesh module made of activated carbon powder, the second filter block (42) is a formaldehyde removal catalyst impregnated on a mesh substrate, and the third filter block (43) is a molecular sieve ceramic with micropores formed by adding a ceramic catalyst and a pore-forming agent.

4. The composite screen of claim 1 wherein: The frame (1) is integrally formed with the horizontal stiffener (2) and the vertical stiffener (3).

5. The composite screen of claim 1 wherein: The filtration module (4) includes multiple layers of filtration layers made of different materials, with each layer used to treat different pollutants.

6. The composite screen of claim 5 wherein: The filter module (4) includes a first filter layer (44), a second filter layer (45), and a third filter layer (46) integrated in sequence. The first filter layer (44), the second filter layer (45), and the third filter layer (46) are made of different materials and are used to treat different pollutants. The first filter layer (44) is a mesh plate made of activated carbon powder, the second filter layer (45) is a formaldehyde removal catalyst impregnated on a mesh substrate plate, and the third filter layer (46) is a filter plate made of molecular sieve ceramic with micropores formed by adding a ceramic catalyst and a pore-forming agent.

7. The composite screen of claim 6 wherein: The filter module (4) further includes a fourth filter layer (48), which is a catalyst impregnated on a mesh substrate to remove VOC gas.

8. The composite screen of claim 7 wherein: The filter module (4) further includes an isolation mesh layer (47), which is located between the second filter layer (45) and the third filter layer (46) and between the third filter layer (46) and the fourth filter layer (48).

9. The composite screen of claim 8 wherein: The different filter layers in the filter module (4) are fixed together.

10. The composite screen of claim 5 wherein: The filtration module (4) includes a long-lasting catalytic filter (49), which is composed of multiple layers of filter screens stacked together, which are a composite of activated carbon and formaldehyde decomposition catalyst filter screen.

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