A formaldehyde removal device containing a multi-stage filtration system

Abstract

This utility model discloses a formaldehyde removal device with a multi-stage filtration system, relating to the field of air filtration technology. It includes: a housing; a front panel and a back panel; a mounting assembly on the back of the back panel for mounting and fixing the housing on a flat surface; an air inlet at the top of the housing, with a damper control module above the inlet; a formaldehyde sensor on one side of the top of the housing for detecting formaldehyde levels in the air and transmitting the detection result as a signal to the damper control module; the damper control module for regulating the airflow at the inlet; and an exhaust port at the bottom of the housing. The device employs a four-stage modular filter system (pre-filter interception + modified activated carbon adsorption + UV photocatalytic decomposition + bio-enzyme purification), combined with the damper control module, to achieve efficient and continuous formaldehyde decomposition and intensive filter replacement, thus improving the formaldehyde treatment effect.

Description

Technical Field

[0001] This utility model relates to the field of air filtration technology, specifically to a formaldehyde removal device containing a multi-stage filtration system. Background Technology

[0002] Formaldehyde in indoor air has become a major pollutant affecting human health, especially in winter when it poses the greatest threat. Plywood, blockboard, medium-density fiberboard, and particleboard, which are used for interior decoration, use adhesives with formaldehyde as the main component. Residual and unreacted formaldehyde in these boards will gradually be released into the surrounding environment, making them the main source of formaldehyde in indoor air.

[0003] To remove formaldehyde from indoor air, it's generally recommended to ventilate a newly renovated house for at least three to six months before moving in. Even then, formaldehyde continues to be released, posing a health threat. Currently available formaldehyde removers or formaldehyde-dissolving enzymes rely on chemical reactions to "remove" formaldehyde. This method essentially reduces the toxicity of the target substance or converts it into a non-toxic formaldehyde, but it's effective only for absorbing formaldehyde indoors and cannot achieve complete removal in the short term. Therefore, we propose a formaldehyde removal device with a multi-stage filtration system. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a formaldehyde removal device with a multi-stage filtration system, which solves the problems mentioned in the background section.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a formaldehyde removal device with a multi-stage filtration system, comprising: a housing; a panel on the front of the housing, a back panel on the back of the housing, an installation assembly on the back of the back panel, the installation assembly being used at least for mounting and fixing the housing on a plane, an air inlet on the top of the housing, and an air damper control module above the air inlet, a formaldehyde sensor on one side of the top of the housing, the formaldehyde sensor being used at least for detecting the formaldehyde content in the air and converting the detection result into a signal for transmission to the air damper control module, the air damper control module being used at least for regulating the air intake volume of the air inlet, an exhaust port on the bottom of the housing, and the interior of the housing, from top to bottom, sequentially comprising a primary interception modular filter, a modified activated carbon adsorption modular filter, a UV photocatalytic decomposition modular filter, and a biological enzyme purification modular filter.

[0006] Furthermore, a vertical air duct is provided between the air inlet, the primary interception modular filter, the modified activated carbon adsorption modular filter, the UV photocatalytic decomposition modular filter, the bio-enzyme purification modular filter, and the exhaust port.

[0007] Furthermore, side panels are provided on both sides of the front of the box, and a slide is formed between the side panels and the box. Several slots are provided on the side panels, and several locking heads that cooperate with the slots are provided on the outer walls of both sides of the panel.

[0008] Furthermore, the mounting assembly includes a female base fixed to the back plate and a base plate fixed to the plane. A connecting post is fixedly connected to one outer wall of the base plate, and a female plate is provided at the end of the connecting post and inserted into the female base from bottom to top.

[0009] Furthermore, the damper control module includes a fixing ring installed on the top of the housing, and the fixing ring is connected to the air inlet. A motor is installed inside the fixing ring through a support plate, and a fan blade is provided below the motor.

[0010] Furthermore, a notch is provided on one side of the top of the fixing ring, a micro motor is provided inside the notch, and a drive gear is provided above the micro motor;

[0011] The fixed ring has a lower air guide plate and an upper air guide plate. Both the air guide plate and the air guide plate have several air holes. The air guide plate is fixed to the inner wall of the fixed ring. The air guide plate is rotatably connected to the fixed ring. A toothed ring is provided on one outer wall of the air guide plate, and the toothed ring meshes with the drive gear.

[0012] This utility model provides a formaldehyde removal device with a multi-stage filtration system, which has the following beneficial effects:

[0013] 1. The four-stage modular filter cartridge, which combines primary interception, modified activated carbon adsorption, UV photocatalytic decomposition, and bio-enzyme purification, along with the damper control module, enables efficient and continuous formaldehyde decomposition and intensive treatment of filter cartridge replacement in stages, thus improving the effectiveness of formaldehyde treatment.

[0014] 2. By setting up an air damper control device, the opening size of the air vents on the air guide plate can be adjusted. Based on the formaldehyde concentration detected by the formaldehyde sensor, the air vents can be adjusted to be smaller when the formaldehyde concentration is high and larger when the formaldehyde concentration is low, thus maximizing the filtration performance of the modular filter element and greatly improving the formaldehyde treatment effect. Attached Figure Description

[0015] Figure 1 This utility model discloses a three-dimensional structure of a formaldehyde removal device containing a multi-stage filtration system. Figure 1 ;

[0016] Figure 2 This utility model discloses a three-dimensional structure of a formaldehyde removal device containing a multi-stage filtration system. Figure 2;

[0017] Figure 3 This is a schematic diagram of the main structure of a formaldehyde removal device containing a multi-stage filtration system according to the present invention.

[0018] Figure 4 This is a schematic diagram of the panel connection structure of a formaldehyde removal device containing a multi-stage filtration system according to the present invention.

[0019] Figure 5 This is a schematic diagram of the installation components of a formaldehyde removal device containing a multi-stage filtration system according to the present invention.

[0020] Figure 6 This is a three-dimensional structural view of the damper control module of a formaldehyde removal device containing a multi-stage filtration system according to the present invention.

[0021] Figure 7 This is an exploded view of the damper control module structure of a formaldehyde removal device containing a multi-stage filtration system according to this utility model.

[0022] 1. Housing; 2. Panel; 21. Clip; 22. Side plate; 23. Bayonet; 3. Back plate; 4. Mounting components; 41. Female connector; 42. Base plate; 43. Connecting column; 44. Sub-plate; 5. Air damper control module; 51. Fixing ring; 52. Motor; 53. Fan blade; 55. Notch; 56. Air guide plate one; 57. Air guide plate two; 58. Air hole; 59. Gear ring; 60. Drive gear; 61. Micro motor; 6. Formaldehyde sensor; 7. Air inlet; 8. Exhaust outlet; 9. Vertical air duct; 10. Primary interception modular filter element; 11. Modified activated carbon adsorption modular filter element; 12. UV photocatalytic decomposition modular filter element; 13. Bio-enzyme purification modular filter element. Detailed Implementation

[0023] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0024] like Figures 1-7As shown, the present invention provides a technical solution: a formaldehyde removal device containing a multi-stage filtration system, comprising: a housing 1; a panel 2 is provided on the front of the housing 1, a back plate 3 is provided on the back of the housing 1, and an installation component 4 is provided on the back of the back plate 3. The installation component 4 is used at least for mounting and fixing the housing 1 on a plane. An air inlet 7 is provided on the top of the housing 1, and an air damper control module 5 is provided above the air inlet 7. A formaldehyde sensor 6 is provided on one side of the top of the housing 1. The formaldehyde sensor 6 is used at least for detecting the formaldehyde content in the air and converting the detection result into a signal to be transmitted to the air damper control module 5. The air damper control module 5 is used at least for regulating the air intake of the air inlet 7. An exhaust port 8 is provided at the bottom of the housing 1. The interior of the housing 1 is provided with, from top to bottom, a primary interception modular filter element 10, a modified activated carbon adsorption modular filter element 11, a UV photocatalytic decomposition modular filter element 12, and a biological enzyme purification modular filter element 13.

[0025] In this embodiment, it includes: a box 1, which is made of high-hardness plastic and has an overall rectangular box structure with dimensions of 400×300×600mm.

[0026] In this embodiment, a panel 2 is provided on the front of the box 1, and side plates 22 are provided on both sides of the front of the box 1. A slide is formed between the side plates 22 and the box 1. Several slots 23 are provided on the side plates 22, and several locking heads 21 that cooperate with the slots 23 are provided on the outer walls of both sides of the panel 2. The operator aligns the locking heads 21 on the panel 2 with the slots 23 on the side plates 22, presses the panel 2 inward, and causes the panel 2 to slide downward, thereby realizing the installation of the panel 2 on the front of the box 1.

[0027] In this embodiment, a back plate 3 is provided on the back of the housing 1, and an installation component 4 is provided on the back of the back plate 3. The installation component 4 is used at least for the installation and fixation of the housing 1 on a plane. The installation component 4 includes a female base 41 fixed on the back plate 3 and a base plate 42 fixed on the plane. A connecting post 43 is fixedly connected to one outer wall of the base plate 42, and a daughter plate 44 is provided at the end of the connecting post 43 and inserted into the female base 41 from bottom to top. When installing the housing 1, the operator can hang the housing 1 on the wall. Specifically, the base plate 42 is fixed to the wall by adhesive or expansion screws, and then the female base 41 on the back of the back plate 3 is snapped onto the daughter plate 44 from top to bottom, so as to quickly install the housing 1.

[0028] In this embodiment, an air inlet 7 is provided on the top of the housing 1, and an air damper control module 5 is provided above the air inlet 7. The air damper control module 5 includes a fixing ring 51 installed on the top of the housing 1, and the fixing ring 51 is connected to the air inlet 7. A motor 52 is installed inside the fixing ring 51 through a support plate, and a fan blade 53 is provided below the motor 52. When the motor 52 is started, the fan blade 53 can be driven to rotate at high speed, thereby drawing external air into the interior of the air inlet 7.

[0029] Specifically, a notch 55 is provided on one side of the top of the fixing ring 51. A micro motor 61 is installed inside the notch 55, and a drive gear 60 is installed above the micro motor 61. Inside the fixing ring 51, there is a lower air guide plate 56 and an upper air guide plate 57. Both the air guide plate 56 and the air guide plate 57 are provided with several air holes 58. The air guide plate 56 is fixed to the inner wall of the fixing ring 51, and the air guide plate 57 is rotatably connected to the fixing ring 51. A gear ring 59 is provided on one outer wall of 57. The gear ring 59 meshes with the drive gear 60. When the micro motor 61 is started, the drive gear 60 is rotated. The drive gear 60 meshes with the gear ring 59, thereby driving the second air guide plate 57 to rotate at a certain angle. This creates a misalignment between the air guide plate 56 and the air holes 58 on the second air guide plate 57, thereby controlling the amount of air entering the air inlet 7 and achieving a more targeted formaldehyde purification effect.

[0030] In this embodiment, a formaldehyde sensor 6 is provided on one side of the top of the housing 1. The formaldehyde sensor 6 is used at least to detect the formaldehyde content in the air and convert the detection result into a signal to be transmitted to the damper control module 5. The damper control module 5 is used at least to regulate the air intake of the air inlet 7. Regarding the formaldehyde sensor 6, the main types include formaldehyde gas reducing oxide gas sensors, silica gel particle-based visual fluorescent formaldehyde sensors, formaldehyde surface acoustic wave gas sensors, formaldehyde gas molecular sieve sensors based on molecular sieve adsorption mechanism, and formaldehyde gas electronic noses. These are also existing technologies and are mainly used to detect the formaldehyde content in the air. Their principles will not be elaborated in detail.

[0031] In this embodiment, an exhaust port 8 is provided at the bottom of the box 1, and the interior of the box 1 is provided with a primary interception modular filter element 10, a modified activated carbon adsorption modular filter element 11, a UV photocatalytic decomposition modular filter element 12, and a biological enzyme purification modular filter element 13 from top to bottom.

[0032] The primary interception modular filter element 10 uses a non-woven fabric bag for dust collection, while the modified activated carbon adsorption modular filter element 11 uses honeycomb activated carbon or columnar modified activated carbon rods to increase the gas-liquid contact area and residence time. The UV photocatalytic decomposition modular filter element 12 utilizes the UV photolysis zone (lamp tube + TiO2 mesh) to generate active substances with strong oxidizing properties (such as hydroxyl radicals, reactive oxygen species, etc.), which can decompose organic pollutants into harmless carbon dioxide and water. The bio-enzyme purification modular filter element 13, such as formaldehyde dehydrogenase and protease, acts as a protein catalyst, which can specifically bind pollutants such as formaldehyde, benzene series compounds, and TVOC, and decompose them into water, carbon dioxide, or harmless small molecules through enzymatic reactions.

[0033] Specifically, a vertical air duct 9 is provided between the air inlet 7, the primary interception modular filter 10, the modified activated carbon adsorption modular filter 11, the UV photocatalytic decomposition modular filter 12, the bio-enzyme purification modular filter 13, and the exhaust port 8. The vertical air duct 9 is used to introduce external air into the interior of the primary interception modular filter 10, the modified activated carbon adsorption modular filter 11, the UV photocatalytic decomposition modular filter 12, and the bio-enzyme purification modular filter 13 in sequence through the air inlet 7, so as to realize the graded treatment of formaldehyde in the air, improve the effect and quality of formaldehyde purification, and discharge the purified air from the exhaust port 8, thereby forming a circulation purification of air.

Claims

1. A formaldehyde removal device comprising a multi-stage filtration system, comprising: Box body (1); characterized in that: a panel (2) is provided on the front of the box body (1), a back plate (3) is provided on the back of the box body (1), an installation component (4) is provided on the back of the back plate (3), the installation component (4) is used at least for the installation and fixing of the box body (1) on the plane, an air inlet (7) is provided on the top of the box body (1), and an air damper control module (5) is provided above the air inlet (7), a formaldehyde sensor (6) is provided on one side of the top of the box body (1), the formaldehyde sensor (6) is used at least for detecting the formaldehyde content in the air and converting the detection result into a signal to be transmitted to the air damper control module (5), the air damper control module (5) is used at least for regulating the air intake of the air inlet (7), an exhaust port (8) is provided at the bottom of the box body (1), and the interior of the box body (1) is provided with a primary interception modular filter (10), a modified activated carbon adsorption modular filter (11), a UV photocatalytic decomposition modular filter (12), and a biological enzyme purification modular filter (13) in sequence from top to bottom.

2. The formaldehyde removal device containing a multi-stage filtration system according to claim 1, characterized in that: A vertical air duct (9) is provided between the air inlet (7), the primary interception modular filter (10), the modified activated carbon adsorption modular filter (11), the UV photocatalytic decomposition modular filter (12), the bio-enzyme purification modular filter (13), and the exhaust port (8).

3. The formaldehyde removal device containing a multi-stage filtration system according to claim 1, characterized in that: The front sides of the box (1) are provided with side plates (22), and a slide is formed between the side plates (22) and the box (1). Several slots (23) are provided on the side plates (22), and several clips (21) that cooperate with the slots (23) are provided on the outer walls of both sides of the panel (2).

4. The formaldehyde removal device containing a multi-stage filtration system according to claim 1, characterized in that: The mounting assembly (4) includes a female base (41) fixed on the back plate (3) and a base plate (42) fixed on the plane. A connecting post (43) is fixedly connected to one side of the outer wall of the base plate (42), and a daughter plate (44) is provided at the end of the connecting post (43) and inserted into the female base (41) from bottom to top.

5. The formaldehyde removal device containing a multi-stage filtration system according to claim 1, characterized in that: The damper control module (5) includes a fixing ring (51) installed on the top of the housing (1), and the fixing ring (51) is connected to the air inlet (7). The motor (52) is installed inside the fixing ring (51) through a support plate, and a fan blade (53) is provided below the motor (52).

6. The formaldehyde removal device containing a multi-stage filtration system according to claim 5, characterized in that: The top side of the fixing ring (51) is provided with a notch (55), a micro motor (61) is provided inside the notch (55), and a drive gear (60) is provided above the micro motor (61). The fixed ring (51) is provided with a lower air guide plate (56) and an upper air guide plate (57). Both the air guide plate (56) and the air guide plate (57) are provided with a number of air holes (58). The air guide plate (56) is fixed on the inner wall of the fixed ring (51). The air guide plate (57) is rotatably connected to the fixed ring (51). A gear ring (59) is provided on one outer wall of the air guide plate (57). The gear ring (59) is meshed with the drive gear (60).

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