Energy-saving and environment-friendly negative oxygen ion air purification device

Abstract

This invention provides an energy-saving and environmentally friendly negative ion air purification device, belonging to the technical field of air purification devices. It includes a fixed frame and a base frame, with a filter layer and a purification layer disposed between the fixed frame and the base frame. The filter layer is composed of a porous material; a purification layer with a honeycomb structure is bonded to the surface of the filter layer; and the purification layer is loaded with bioactive enzyme extracts. The bioactive enzyme extracts in the purification layer of this invention continuously provide active electrons to oxygen molecules through biomimetic catalysis, promoting their conversion into negative oxygen ions. These negative oxygen ions can effectively decompose organic pollutants such as formaldehyde and benzene compounds, and promote the sedimentation of suspended particulate matter in the air. The entire purification process requires no electricity, achieving zero power consumption and noiseless operation. The porous structure of the filter layer facilitates the loading of the bioactive enzyme extracts and the diffusion of polluted gases; the regular honeycomb pores of the purification layer increase the contact area between the airflow and the material.

Description

Technical Field

[0001] This invention relates to the field of air purification device technology, and in particular to an energy-saving and environmentally friendly negative oxygen ion air purification device. Background Technology

[0002] With the continuous release of harmful substances (such as formaldehyde, benzene, and volatile organic compounds) from indoor decoration materials and furniture, indoor air pollution is becoming increasingly prominent. Traditional air purification materials mostly use porous adsorption materials such as activated carbon and diatomaceous earth to remove pollutants through physical adsorption. However, physical adsorption has drawbacks such as adsorption saturation, easy desorption, and difficulty in degrading pollutants, resulting in short-lasting purification effects and the potential for secondary pollution after disposal.

[0003] Currently, the mainstream air purification equipment on the market is mainly divided into two categories: one is active air purifiers, which are based on fans, filters and high-voltage electrostatic discharge. Although these devices have high purification efficiency, they require continuous power consumption, have high operating noise, and require regular filter replacement, resulting in high maintenance costs. The other category is passive adsorption materials, such as activated carbon bags and diatomaceous earth. Although these products do not require energy consumption, their adsorption capacity is limited, they are prone to saturation and failure, and their functions are limited, lacking the ability to actively decompose pollutants.

[0004] Therefore, an energy-saving and environmentally friendly negative oxygen ion air purification device is proposed. Summary of the Invention

[0005] In view of this, the present invention provides an energy-saving and environmentally friendly negative oxygen ion air purification device to solve or alleviate one of the technical problems existing in the prior art, and at least provides a beneficial alternative.

[0006] The technical solution of this invention is implemented as follows: An energy-saving and environmentally friendly negative oxygen ion air purification device includes a fixed frame and a bottom frame. A filter layer and a purification layer are disposed between the fixed frame and the bottom frame. The filter layer is made of porous material. A purification layer is bonded to the surface of the filter layer. The purification layer has a honeycomb structure. The purification layer is loaded with bioactive enzyme extract.

[0007] Preferably, the porous structure of the filter layer has an average pore size of 0.01mm-2mm and a porosity of 20%-80%, and the honeycomb structure consists of regularly arranged polygonal honeycomb pores with a pore size of 0.1mm-5mm and a porosity of 30%-85%.

[0008] Preferably, the bioactive enzyme extract includes at least one of formaldehyde-degrading enzyme, benzene series degrading enzyme, or lysozyme.

[0009] The embodiments of the present invention have the following advantages due to the adoption of the above technical solutions: 1. The bioactive enzyme extract in the purification layer of this invention continuously provides active electrons to oxygen molecules through biomimetic catalysis, promoting their conversion into negative oxygen ions. These negative oxygen ions can effectively decompose organic pollutants such as formaldehyde and benzene compounds, and promote the settling of suspended particulate matter in the air. The entire purification process requires no electricity, achieving zero power consumption and noiseless operation, which aligns with the concept of green environmental protection.

[0010] This invention comprises a porous filter layer and a honeycomb-structured purification layer. The porous structure of the filter layer provides a high specific surface area and good gas permeability, which is beneficial for the loading of bioactive enzyme extracts and the diffusion of polluting gases; the regular honeycomb pores of the purification layer further increase the contact area between the airflow and the material, while reducing wind resistance. The synergistic effect of the hierarchical porous structure improves the capture and degradation efficiency of pollutants such as formaldehyde and benzene compounds in the air.

[0011] The above overview is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of the invention will become readily apparent from the accompanying drawings and the following detailed description. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 This is a structural diagram of the present invention; Figure 2 This is a structural diagram of the filter layer and purification layer of the present invention.

[0014] Reference numerals in the attached diagram: 1. Filter layer; 2. Purification layer; 4. Fixing frame; 5. Bottom frame. Detailed Implementation

[0015] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of the invention. Therefore, the drawings and description are considered to be exemplary in nature and not restrictive.

[0016] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0017] Example 1 This embodiment provides an energy-saving and environmentally friendly negative oxygen ion air purification device, the structure of which includes: Filter layer: Made of silicone rubber, with a porous structure, an average pore size of 0.1 mm, and a porosity of 50%; Purification layer: Combined with the upper surface of the filter layer, it forms a hexagonal honeycomb structure with a honeycomb pore size of 1mm and a porosity of 60%; Bioactive enzyme extract: formaldehyde-degrading enzyme, dispersed in the purification layer in microencapsulated form; Testing showed that the formaldehyde-degrading enzyme activity retention rate in the composite material prepared in this embodiment reached 85% (relative to the initial added enzyme activity). The composite material was cut into 10cm × 10cm samples and placed in a 1m... 3 The initial formaldehyde concentration in the sealed chamber was 1.0 mg / m³. 3 Under conditions of 25℃ and 50% relative humidity, the formaldehyde concentration decreased to 0.03 mg / m³ after 24 hours. 3 The removal rate reached 97%. Meanwhile, the concentration of negative oxygen ions near the sample surface, measured using a negative oxygen ion detector, was 1200 ions / cm³. 3 .

[0018] Example 2 The difference between this embodiment and Embodiment 1 is that: The filter layer material is thermoplastic polyurethane elastomer (TPU), with an average pore size of 0.2 mm and a porosity of 70%. The bioactive enzyme extract is a benzene series decomposing enzyme (toluene degrading enzyme), which is dispersed in the purification layer in the form of nano-embedded material (the carrier is mesoporous silica with a particle size of 50 nm). The addition amount is 1000 U / g composite material. The purification layer material is polydimethylsiloxane (PDMS), which is composited with the filter layer by hot pressing. The honeycomb structure is directly formed by 3D printing, with hexagonal honeycomb pores having a diameter of 2mm and a porosity of 75%. Performance testing: at 1m 3 In the sealed chamber, the initial toluene concentration was 0.5 mg / m³. 3 After 24 hours, the toluene removal rate was 92%; the concentration of negative oxygen ions released was 800 ions / cm³. 3 .

[0019] Example 3 In this embodiment, an adsorption coating is further provided on the inner wall of the honeycomb structure of the purification layer.

[0020] Filter layer: Made of ethylene propylene diene monomer (EPDM) rubber, formed into a porous structure by chemical foaming (average pore size 0.05mm, porosity 40%), containing 5% tourmaline powder.

[0021] Purification layer: Made of the same material as the filter layer, it is formed by molding square honeycomb pores (pore diameter 0.5mm, porosity 65%). The bioactive enzyme extract is lysozyme (2000U / g), dispersed in microencapsulation form.

[0022] After the purification layer is formed, a polyethylene glycol solution containing activated carbon particles (1-5 μm in diameter) is sprayed onto the inner wall and surface of the honeycomb structure to form an adsorbent coating with a thickness of about 10 μm.

[0023] The remaining steps are the same as in Example 1.

[0024] Performance testing: Initial concentration of total volatile organic compounds (TVOC) in the air 2.0 mg / m³ 3 The removal rate was 96% after 24 hours; it also has antibacterial properties, with an inhibition rate of ≥99% against Staphylococcus aureus.

[0025] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art can easily conceive of various variations or substitutions within the technical scope disclosed in the present invention, and these should all be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. An energy-saving and environment-friendly negative oxygen ion air purification device, comprising a fixed frame (4) and a bottom frame (5), characterized in that: A filter layer (1) and a purification layer (2) are provided between the fixed frame (4) and the bottom frame (5). The filter layer (1) is made of porous material. The purification layer (2) is bonded to the surface of the filter layer (1). The purification layer (2) has a honeycomb structure. The purification layer (2) is loaded with bioactive enzyme extract.

2. The energy-saving and environment-friendly negative oxygen ion air purification device according to claim 1, characterized in that, The porous structure of the filter layer (1) has an average pore size of 0.01mm-2mm and a porosity of 20%-80%. The honeycomb structure consists of regularly arranged polygonal honeycomb pores with a pore size of 0.1mm-5mm and a porosity of 30%-85%.

3. The energy-saving and environment-friendly negative oxygen ion air purification device according to claim 1, characterized in that, The bioactive enzyme extract includes at least one of formaldehyde-degrading enzyme, benzene series degrading enzyme, or lysozyme.

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