Modular composite chemical filter

Abstract

The utility model discloses a modularized composite chemical filter, which is characterized in that a shell is provided with a through hole pair, a V-shaped frame and a buckling seat, the V-shaped frame comprises two positioning boxes which are connected to form a V shape, each positioning box is provided with a mounting port and a ventilation window, the mounting ports of the two positioning boxes in the V-shaped frame are adjacent, and the buckling seat is arranged on the V-shaped frame. Each through hole pair is located at the corresponding two adjacent mounting ports; the chemical filtering modules are arranged in the corresponding positioning boxes; the filter increasing assembly comprises a filter screen and two buckling pieces, the filter screen is located on the side, close to the through hole pair, of the V-shaped frame, and the two opposite ends of the filter screen are clamped to the two buckling structures correspondingly; the baffles penetrate through the corresponding through hole pairs and are located on the sides, close to the mounting openings, of the corresponding chemical filtering modules, and the filter screens are further clamped between the baffles and the V-shaped frame. According to the utility model, multi-stage filtration can be realized, the air filtration and purification effect is good, the disassembly, assembly, maintenance and operation are convenient, the chemical filtration module can be independently replaced, and the use cost is low.

Description

Technical Field

[0001] This utility model relates to the field of air filtration, and in particular to a modular composite chemical filter. Background Technology

[0002] Chemical filters are air purification devices used in industrial, laboratory, or cleanroom environments to remove substances such as VOCs, acidic or alkaline gases, and ozone from the air.

[0003] In traditional technology, chemical filters are usually set up as a multi-layer filter structure that is fixed in a single direction. The gas passes through in a direction perpendicular to the filter, resulting in a short effective filtration path. Especially for chemical filtration that requires a certain amount of time for adsorption reaction, the traditional filter has poor filtration and purification effect, and the entire filter needs to be replaced when it reaches the end of its service life, resulting in high operating costs. Utility Model Content

[0004] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a modular composite chemical filter with good air filtration and purification effect, where the chemical filter module can be independently replaced and maintained, resulting in low operating costs.

[0005] A modular composite chemical filter according to an embodiment of the present invention includes:

[0006] The housing has n pairs of through holes, n V-shaped frames and two fastening seats, where n is an integer greater than 0. The V-shaped frame includes two positioning boxes connected in a V-shape. The positioning box has an installation port and two opposite ventilation windows. The installation ports of the two positioning boxes in the V-shaped frame are adjacent. Each pair of through holes is located at the corresponding two adjacent installation ports. The pair of through holes includes two opposite positioning through holes.

[0007] The chemical filtration module has 2n units, each located in a corresponding positioning box. The chemical filtration module includes a frame, a filter media filler, and two mesh plates. Both mesh plates are connected inside the frame, and the filter media filler is located between the two mesh plates.

[0008] The filter assembly includes a filter screen and two fastening components. The filter screen is located on the side of the V-shaped frame near the through hole pair. The two fastening components are fastened to two fastening seats respectively to form two fastening structures. The opposite ends of the filter screen are respectively clamped to the two sets of fastening structures.

[0009] There are n baffles, each of which is inserted through a corresponding pair of through holes. Each baffle is located on the side of the corresponding chemical filter module near the installation port. The filter screen is also held between the baffle and the V-shaped frame.

[0010] In this embodiment, the positioning box is also provided with an installation slope opposite to the installation port, and the side of the baffle near the V-shaped frame is provided with two blocking slopes connected in a V-shape. The opposite sides of the chemical filtration module abut against the installation slope and the blocking slope respectively.

[0011] In this embodiment, a first limiting plate is provided at one end of the baffle. The area of ​​the first limiting plate is larger than the cross-sectional area of ​​the positioning through hole, and the first limiting plate abuts against the outer wall of the shell.

[0012] In this embodiment, a second limiting plate is detachably connected to the end of the baffle away from the first limiting plate. The area of ​​the second limiting plate is larger than the cross-sectional area of ​​the positioning through hole, and the second limiting plate abuts against the outer wall of the shell.

[0013] In this embodiment, the baffle is provided with a first screw hole at one end near the second limiting plate, and the second limiting plate is provided with a second screw hole. The first screw hole and the second screw hole are threadedly connected with screws.

[0014] In this embodiment, the fastening seat is provided with two slots, and the fastening component is provided with two buckles, which are respectively engaged and connected to the two slots.

[0015] In this embodiment, a handle is provided on the side of the fastener away from the fastening seat.

[0016] In this embodiment, the mesh is a polystyrene mesh.

[0017] In this embodiment, the filter media packing is alumina particles and / or activated carbon particles.

[0018] The embodiments of this utility model have at least the following beneficial effects:

[0019] The V-shaped frame layout of the chemical filter module effectively increases the contact area between the airflow and the filter media. The addition of a snap-fit ​​structure to secure the filter screen allows for multi-stage filtration, significantly improving overall filtration performance and resulting in superior air purification. The positioning box and baffle allow for independent installation and positioning of the chemical filter module, facilitating easy disassembly and maintenance. In environments with uneven airflow, it enables independent replacement of different areas of the filter module at varying frequencies, resulting in high replacement efficiency. This maintains high filtration performance while effectively reducing filtration costs, leading to low operating costs. The baffle and V-shaped frame not only secure the chemical filter module but also further stabilize the filter screen, reducing the positioning burden on the snap-fit ​​structure and improving the uniformity of the positioning force on the filter screen. The overall structure of this chemical filter is simple, stable, and reliable. Attached Figure Description

[0020] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0021] Figure 1 This is a three-dimensional structural diagram of a modular composite chemical filter according to an embodiment of the present invention;

[0022] Figure 2 This is a three-dimensional structural diagram of the modular composite chemical filter according to an embodiment of the present invention, viewed from another perspective.

[0023] Figure 3 This is an exploded structural diagram of the modular composite chemical filter according to an embodiment of the present invention;

[0024] Figure 4 This is a front view schematic diagram of the modular composite chemical filter according to an embodiment of the present utility model.

[0025] Figure 5 For along Figure 4 A schematic diagram of the cross-sectional structure of line A-A'.

[0026] Figure label:

[0027] Housing 100, positioning through hole 110, positioning box 120, mounting port 121, ventilation window 122, mounting slope 123, fastening seat 130, and slot 131;

[0028] Chemical filtration module 200, frame 210, filter media filler 220, mesh plate 230;

[0029] Filter assembly 300, filter screen 310, fastener 320, buckle 321, handle 322;

[0030] Baffle 400, blocking inclined surface 401, first screw hole 402, first limiting plate 410, second limiting plate 420, second screw hole 421, screw 430. Detailed Implementation

[0031] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0032] In the description of this utility model, it should be understood that the orientation descriptions, such as up, down, left, right, front, and back, are based on the orientation or positional relationship shown in the accompanying drawings. 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. Therefore, they should not be construed as limitations on this utility model.

[0033] In the description of this utility model, if the wire sleeve or bracket is mentioned, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or the order of the technical features indicated.

[0034] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0035] Chemical filters are air purification devices used in industrial, laboratory, or cleanroom environments to remove substances such as VOCs, acidic or alkaline gases, and ozone from the air. Traditional chemical filters typically consist of a multi-layered filter structure fixed in a single direction, with gas passing perpendicular to the filter mesh. This results in a short effective filtration path, particularly for chemical filtration where the filter media needs time for adsorption reactions. Traditional filters often exhibit poor purification performance and require complete replacement at the end of their lifespan, leading to high operating costs. Therefore, there is an urgent need for a chemical filter that optimizes airflow distribution, improves filtration performance, and reduces maintenance costs.

[0036] The following is for reference only. Figure 1 To be continued Figure 5 This invention describes a modular composite chemical filter with good air filtration and purification effect. The chemical filter module can be independently replaced and maintained, resulting in low operating costs.

[0037] Reference Figures 1 to 5 A modular composite chemical filter according to an embodiment of the present invention includes:

[0038] The housing 100 has n pairs of through holes, n V-shaped frames, and two fastening seats 130, where n is an integer greater than 0, i.e., n is a positive integer. The V-shaped frame includes two positioning boxes 120 connected in a V-shape. Each pair of positioning boxes 120 has a mounting opening 121 and two oppositely arranged ventilation windows 122. The ventilation windows 122 are located on the large side surface of the positioning box 120, and the mounting opening 121 is located on the small end face of the positioning box 120. The mounting openings 121 of the two positioning boxes 120 in the same V-shaped frame are adjacent, and each pair of through holes is located at the corresponding two adjacent mounting openings 121. Each pair of through holes includes two matching and opposite positioning through holes 110. The two positioning through holes 110 are located on opposite sides of the housing 100. The two fastening seats 130 are located above and below the area where all pairs of through holes are located, respectively. When n is greater than 1, the edges of each pair of adjacent V-shaped frames are connected to form a W-shaped structure.

[0039] There are 2n chemical filtration modules 200, and all chemical filtration modules 200 are respectively located in corresponding positioning boxes 120. Each chemical filtration module 200 includes a frame 210, a filter media filler 220, and two mesh plates 230. Both mesh plates 230 are connected inside the frame 210. Each mesh plate 230 is directly facing the corresponding ventilation window 122 so that airflow can pass from the mesh plate 230 through the filter media filler 220 to achieve chemical filtration. The filter media filler 220 is located between the two mesh plates 230 and is also confined in the frame 210. Along the airflow direction of the airflow entering and exiting the chemical filter, the projections of all chemical filtration modules 200 are connected in sequence to form a continuous filter fitting surface.

[0040] The filter assembly 300 includes a filter screen 310 and two fastening members 320. The filter screen 310 is located on the side of all V-shaped frames and fastening seats 130 near the through holes. The two fastening members 320 are fastened to the two fastening seats 130 respectively and form two fastening structures. The two ends of the filter screen 310 are respectively clamped to the two sets of fastening structures.

[0041] There are n baffles 400, each baffle 400 is inserted through a corresponding pair of through holes, and each baffle 400 is located on the side of the corresponding chemical filter module 200 near the mounting port 121, so as to block and position the chemical filter module 200 in the corresponding positioning box 120. The filter screen 310 is also clamped between the baffle 400 and the V-shaped frame, which can further stabilize the position of the filter screen 310.

[0042] The V-shaped frame of the chemical filter module 200 effectively increases the contact area between the airflow and the filter media 220. The addition of a snap-fit ​​structure to fix the filter screen 310 allows for multi-stage filtration, significantly improving overall filtration performance and air purification. Depending on the requirements, the filter screen 310 can be positioned on either the inlet or outlet side of the chemical filter module 200, achieving different filtration effects. When the filter screen 310 is positioned on the inlet side, it functions as a coarse filter, effectively intercepting large particles and extending the module's lifespan. When positioned on the outlet side, it functions as a fine filter, such as a HEPA filter, providing more precise air filtration and further enhancing purification. The chemical filter module 200 is independently installed and positioned using the positioning box 120 and baffle 400. The chemical filter module 200 can be disassembled and installed by pushing or pulling the baffle 400 along the through hole. The disassembly and maintenance operation is convenient. When applied to environments with uneven airflow distribution, the chemical filter module 200 in different areas can be replaced independently at different frequencies, resulting in high replacement efficiency. While maintaining high-efficiency filtration performance, it can effectively save filtration costs. The baffle 400, together with the V-shaped frame, not only realizes the installation and positioning of the chemical filter module 200, but also further stabilizes the position of the filter screen 310, reduces the positioning burden of the fastening structure, prevents the fastening structure from loosening, and improves the uniformity of the positioning force distribution on the filter screen 310. During operation, it can significantly reduce or even eliminate the vibration or displacement of the filter screen 310 when subjected to airflow impact. The overall structure of this chemical filter is simple, stable and reliable.

[0043] Understandably, the positioning box 120 also has a mounting slope 123 opposite to the mounting port 121. The baffle 400 has two connecting V-shaped blocking slopes 401 on the side near the V-shaped frame. The opposite sides of the chemical filter module 200 abut against the mounting slope 123 and the blocking slope 401 respectively. When manufacturing the chemical filter module 200, the frame 210 has a regular shape and right angles, which facilitates manufacturing and improves the versatility of the frame 210. The mounting slope 123 and blocking slope 401 are set according to the installation space to adapt to the specific tilt angle of the corresponding position. During installation, each chemical filter module 200 can be installed and connected to the corresponding positioning box 120, making installation convenient and ensuring a firm and reliable positioning effect.

[0044] It is understandable that a first limiting plate 410 is provided at one end of the baffle 400. The area of ​​the first limiting plate 410 is larger than the cross-sectional area of ​​the positioning through hole 110. The first limiting plate 410 abuts against the outer wall of the housing 100. The first limiting plate 410 can effectively limit the position of the baffle 400, prevent the baffle 400 from moving forward beyond the designated position, and reduce the probability of the baffle 400 falling off.

[0045] Understandably, the end of the baffle 400 furthest from the first limiting plate 410 is detachably connected to a second limiting plate 420. The area of ​​the second limiting plate 420 is larger than the cross-sectional area of ​​the positioning through hole 110, and the second limiting plate 420 abuts against the outer wall of the housing 100. The first limiting plate 410 is fixedly connected to one end of the baffle 400, and is detachably connected to the other end of the baffle 400 via the second limiting plate 420. When the second limiting plate 420 is removed, the baffle 400 can be directly removed or installed from the through hole pair. After the baffle 400 is installed into the through hole pair, the second limiting plate 420 and the baffle 400 are locked and fixed, which can effectively ensure the stability of the relative position between the baffle 400 and the housing 100, thereby ensuring the stability of the relative position between the chemical filtration module 200 and the V-shaped frame.

[0046] Understandably, the baffle 400 has a first screw hole 402 at one end near the second limiting plate 420, and the second limiting plate 420 has a second screw hole 421. The first screw hole 402 and the second screw hole 421 are threadedly connected to a screw 430. The screw 430 is threaded from one side of the second limiting plate 420 to the second screw hole 421 and the first screw hole 402, thereby locking the relative position between the second limiting plate 420 and the baffle 400 through a threaded connection.

[0047] It is understood that the fastening seat 130 has two slots 131, and the fastening member 320 has two buckles 321 that respectively match the two slots 131. The two buckles 321 are respectively engaged and connected to the two slots 131, and the filter screen 310 is held in the buckles 321 and the corresponding slots 131. Preferably, the two slots 131 are located on the upper and lower sides of the fastening seat 130, and the two buckles 321 are respectively connected to the upper and lower sides of the fastening member 320. When fastening, the fastening member 320 pushes the filter screen 310 towards the fastening seat 130, and the buckles 321 press the filter screen 310 into the slots 131. By setting two sets of buckles 321 and slots 131, the positioning effect of the filter screen 310 can be effectively improved.

[0048] Understandably, the fastener 320 has a handle 322 on the side away from the fastener seat 130. The handle 322 facilitates the disassembly and assembly of the fastener 320 and the fastener seat 130, thereby effectively improving maintenance efficiency.

[0049] Understandably, the mesh panel 230 is made of polystyrene. By using polystyrene mesh, a lightweight design can be achieved, effectively adapting to weight-sensitive applications. Polystyrene also possesses excellent resistance to acid and alkali corrosion, making it suitable for chemical filtration applications. The smooth surface of the polystyrene mesh reduces airflow resistance, effectively optimizing airflow efficiency. The mesh panel 230 can also be made of nylon or ABS plastic. Depending on the specific application, the mesh density can be adjusted according to filtration requirements and the filter media 220 to balance airflow resistance and particulate matter interception efficiency. The edges of the mesh panel 230 are connected to the frame 210 via ultrasonic welding or gluing, effectively preventing gas leakage and ensuring optimal filtration performance.

[0050] It is understood that the filter media packing 220 is a packing of alumina particles and / or activated carbon particles. Preferably, the filter media packing 220 has a honeycomb-shaped partition plate inside, which can effectively improve the structural stability of the filter media packing 220 and improve the uniformity of the filter media distribution inside the filter media packing 220. Among them, alumina particles have good physical adsorption capacity, are suitable for the removal of acidic gases and polar organic compounds, and can effectively adapt to the treatment of high-temperature waste gas. By impregnating potassium permanganate or iodide, the catalytic decomposition capacity of alumina particles for specific pollutants such as hydrogen sulfide and ozone can be enhanced. Activated carbon particles have a well-developed hollow structure and have a strong adsorption capacity for non-polar organic pollutants and odor molecules. The filter media has low cost and is suitable for the treatment of large-volume industrial waste gas. According to actual application requirements, molecular sieves, silica gel, and other materials can be used to make the filter media packing 220 to achieve the corresponding adsorption reaction filtration and purification function.

[0051] Although embodiments of the present invention have been shown and described, those skilled in the art will understand 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 claims and their equivalents.

Claims

1. A modular composite chemical filter, characterized in that, include: The housing (100) has n pairs of through holes, n V-shaped frames and two fastening seats (130), where n is an integer greater than 0. The V-shaped frame includes two positioning boxes (120) connected in a V-shape. The positioning box (120) has an installation port (121) and two opposing ventilation windows (122). The installation ports (121) of the two positioning boxes (120) in the V-shaped frame are adjacent. Each pair of through holes is located at the corresponding two adjacent installation ports (121). The pair of through holes includes two opposing positioning through holes (110). A chemical filtration module (200) is provided, and each module is respectively located in a corresponding positioning box (120). The chemical filtration module (200) includes a frame (210), a filter media filler (220), and two mesh plates (230). The two mesh plates (230) are connected to the frame (210), and the filter media filler (220) is located between the two mesh plates (230). The filter assembly (300) includes a filter screen (310) and two fastening members (320). The filter screen (310) is located on the side of the V-shaped frame near the through hole pair. The two fastening members (320) are respectively fastened to the two fastening seats (130) and form two fastening structures. The two ends of the filter screen (310) are respectively clamped to the two sets of fastening structures. There are n baffles (400), each baffle (400) is inserted through the corresponding pair of through holes, and each baffle (400) is located on the side of the corresponding chemical filtration module (200) near the mounting port (121). The filter screen (310) is also held between the baffle (400) and the V-shaped frame.

2. The modular composite chemical filter according to claim 1, characterized in that, The positioning box (120) is also provided with an installation slope (123) opposite to the installation port (121). The baffle (400) is provided with two blocking slopes (401) connected in a V shape on the side near the V-shaped frame. The opposite sides of the chemical filtration module (200) abut against the installation slope (123) and the blocking slope (401) respectively.

3. A modular composite chemical filter according to claim 1, characterized in that, One end of the baffle (400) is provided with a first limiting plate (410), the area of ​​the first limiting plate (410) is larger than the cross-sectional area of ​​the positioning through hole (110), and the first limiting plate (410) abuts against the outer wall of the housing (100).

4. A modular composite chemical filter according to claim 3, characterized in that, The baffle (400) is detachably connected to a second limiting plate (420) at the end away from the first limiting plate (410). The area of ​​the second limiting plate (420) is larger than the cross-sectional area of ​​the positioning through hole (110). The second limiting plate (420) abuts against the outer wall of the housing (100).

5. A modular composite chemical filter according to claim 4, characterized in that, The baffle (400) has a first screw hole (402) at one end near the second limiting plate (420), and the second limiting plate (420) has a second screw hole (421). The first screw hole (402) and the second screw hole (421) are threadedly connected with screws (430).

6. A modular composite chemical filter according to claim 1, characterized in that, The fastening seat (130) is provided with two slots (131), and the fastening member (320) is provided with two buckles (321). The two buckles (321) are respectively engaged and connected to the two slots (131).

7. A modular composite chemical filter according to claim 1, characterized in that, The fastener (320) has a handle (322) on the side away from the fastener seat (130).

8. A modular composite chemical filter according to claim 1, characterized in that, The mesh (230) is a polystyrene mesh.

9. A modular composite chemical filter according to claim 1, characterized in that, The filter media filler (220) is alumina particles and / or activated carbon particles.

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