Multi-stage purification device containing low-resistance polytetrafluoroethylene film

Abstract

The multi-stage purification device comprises a purification bin, an air inlet cylinder is arranged above the purification bin, air inlet grooves are evenly formed in the side face of the air inlet cylinder, an air inlet plate, an air outlet plate and a plurality of partition plates are arranged in the purification bin, an air flow channel is formed between one side of each partition plate and the inner wall of the purification bin, and an air outlet channel is formed between the other side of each partition plate and the inner wall of the purification bin. A purification plate is arranged between every two adjacent partition plates, hollow grooves distributed with the airflow channels in a staggered mode are formed in the purification plates, and an antistatic layer, a low-resistance polytetrafluoroethylene film and a glass fiber layer are sequentially arranged in each hollow groove in the airflow flowing direction. The air purifier has the characteristics of high maintenance cost, trouble in replacement and short purification time.

Description

Technical Field

[0001] This utility model relates to an air purification device, and more particularly to a multi-stage purification device containing a low-resistance polytetrafluoroethylene film. Background Technology

[0002] Air purifiers primarily use various layers of filters to filter, adsorb, and decompose air, removing particulate matter, bacteria, viruses, formaldehyde, and other harmful gases, eliminating odors, and providing a clean air environment.

[0003] Existing air purifiers primarily use filters such as pre-filters, HEPA filters, photocatalysts, and activated carbon. HEPA filters are prone to electrostatic adsorption, easily accumulating dust and mold, posing a risk of secondary pollution, and require frequent replacement, resulting in high maintenance costs. Activated carbon has a limited adsorption capacity and also needs periodic replacement, which is inconvenient. Photocatalysts require specific light conditions, but in some air purifiers, the photocatalyst is improperly positioned, making it difficult to receive sufficient light and thus hindering its effectiveness. Furthermore, the current air purifiers use flat, parallel-mounted filters, resulting in short airflow paths and short transit times between filters, leading to mediocre filtration and purification effects. Utility Model Content

[0004] The purpose of this invention is to provide a multi-stage purification device containing a low-resistivity polytetrafluoroethylene (PTFE) film. This invention is characterized by high maintenance costs, cumbersome replacement, and short purification time.

[0005] The technical solution of this utility model is as follows: A multi-stage purification device containing a low-resistance polytetrafluoroethylene film includes a purification chamber, an air inlet cylinder above the purification chamber, air inlet grooves evenly distributed on the side of the air inlet cylinder, an air inlet plate, an air outlet plate and multiple partition plates inside the purification chamber, an airflow channel is formed between one side of the partition plate and the inner wall of the purification chamber, a purification plate is provided between adjacent partition plates, and hollow grooves are provided on the purification plate in a staggered manner with the airflow channel. An antistatic layer, a low-resistance polytetrafluoroethylene film and a glass fiber layer are sequentially arranged in the hollow groove along the airflow direction.

[0006] In the aforementioned multi-stage purification device containing a low-resistance polytetrafluoroethylene film, an annular primary filter screen is provided on the inner wall of the air inlet cylinder, and the surface of the primary filter screen is folded.

[0007] In the aforementioned multi-stage purification device containing a low-resistance polytetrafluoroethylene film, a photocatalyst layer is provided on the air inlet plate on the air inlet side.

[0008] In the aforementioned multi-stage purification device containing a low-resistance polytetrafluoroethylene film, the surface of the partition plate is provided with an activated carbon adsorption layer, and one side of the activated carbon adsorption layer extends toward the airflow channel to contact the inner wall of the purification chamber.

[0009] In the aforementioned multi-stage purification device containing a low-resistance polytetrafluoroethylene film, the side wall of the purification chamber is provided with an installation groove for the other side of the partition plate to pass through. The other side of the partition plate passes through the installation groove and is provided with an installation plate. The installation plate is provided with fixing bolts that connect to the purification chamber.

[0010] In the aforementioned multi-stage purification device containing a low-resistivity polytetrafluoroethylene film, a plasma generator and a fan are provided on the air outlet plate.

[0011] In the aforementioned multi-stage purification device containing a low-resistance polytetrafluoroethylene (PTFE) film, a hydrophobic graphene layer is provided on the air inlet side of the low-resistance PTFE film, and a hydrophilic non-woven fabric layer is provided on the air outlet side of the low-resistance PTFE film.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] This invention utilizes a multi-layered, staggered airflow channel and hollow grooves on the purification plate to create a deflected flow of air within the purification chamber, extending the airflow path and increasing the purification time, thereby improving air purification efficiency. An antistatic layer within the hollow grooves neutralizes electrical charges, preventing the PTFE membrane from attracting charged dust, reducing clogging, maintaining low resistance, facilitating self-cleaning, and eliminating the need for frequent replacement. The low-resistance PTFE membrane efficiently filters bacteria, particulate matter, toxic gases, and aerosols from the air, and can be washed with water to restore its performance, enabling reuse and reducing maintenance costs. A glass fiber layer enhances the strength of the low-resistance PTFE membrane, making it less prone to breakage and deformation, thus improving its dust holding capacity, service life, and filtration efficiency.

[0014] Therefore, this utility model has the characteristics of high maintenance cost, troublesome replacement, and short purification time. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model.

[0016] Figure 2 This is a schematic diagram of the air intake cylinder.

[0017] Figure 3 This is a schematic diagram of the structure of each layer inside the hollow trough.

[0018] The labels in the attached diagram are as follows: 1. Purification chamber; 2. Air inlet cylinder; 21. Air inlet slot; 22. Primary filter; 31. Air inlet plate; 311. Photocatalyst layer; 32. Air outlet plate; 321. Ventilation hole; 322. Plasma generator; 323. Fan; 33. Partition plate; 331. Activated carbon adsorption layer; 332. Mounting plate; 333. Fixing bolt; 34. Airflow channel; 4. Purification plate; 41. Antistatic layer; 42. Low-resistance polytetrafluoroethylene film; 43. Glass fiber layer; 44. Graphene layer; 45. Non-woven fabric layer. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments, but this should not be construed as limiting the present invention.

[0020] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, a hinged connection, a rotating connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0021] Example:

[0022] like Figures 1-3 As shown, a multi-stage purification device containing a low-resistance polytetrafluoroethylene film includes a purification chamber 1. An air inlet 2 is provided above the purification chamber 1. Air inlet grooves 21 are evenly provided on the side of the air inlet 2. The purification chamber 1 is provided with an air inlet plate 31, an air outlet plate 32 and multiple partition plates 33 inside. Both the air inlet plate 31 and the air outlet plate 32 are provided with ventilation holes 321. The partition plates 33 are located between the air inlet plate 31 and the air outlet plate 32. An airflow channel 34 is formed between one side of the partition plate 33 and the inner wall of the purification chamber 1. A purification plate 4 is provided between adjacent partition plates 33. Hollow grooves are provided on the purification plate 4 and are staggered with the airflow channel 34. An antistatic layer 41, a low-resistance polytetrafluoroethylene film 42 and a glass fiber layer 43 are sequentially provided in the hollow grooves along the airflow direction.

[0023] An air intake duct 2 with side air intake is installed above the purification chamber 1, providing a large air intake area and increasing the air volume. Through multi-layered, staggered airflow channels 34 and hollow grooves on the purification plate 4, the airflow is deflected within the purification chamber 1, extending the airflow path and increasing the purification time, thus improving the air purification effect. An antistatic layer 41 within the hollow grooves neutralizes the charge, preventing the low-resistance PTFE film 42 from attracting charged dust, reducing clogging, maintaining low resistance, facilitating self-cleaning, and eliminating the need for frequent replacement. The low-resistance PTFE film 42 is formed into a microporous structure through a biaxial stretching process, with a pore size range of 0.1-10 μm, porosity >88%, thickness of 0.03-0.04 mm, and air permeability of 16-22 L / m³. 2 The low-resistance PTFE membrane 42 has low filtration resistance and maintains high retention efficiency. It can effectively filter bacteria, particulate matter, toxic gases or aerosols in the air. It can be washed with water to restore its performance, enabling reuse and reducing maintenance costs. The glass fiber layer 43 increases the strength of the low-resistance PTFE membrane 42, making it less prone to damage or deformation, thereby improving the dust holding capacity, service life and filtration effect of the low-resistance PTFE membrane 42.

[0024] The inner wall of the air intake cylinder 2 is provided with an annular primary filter 22, the surface of which is folded. The primary filter 22 is installed on the air intake cylinder 2 to effectively block large particles such as hair, fibers, and dust in the air, preventing clogging of subsequent purification components. The folded surface of the primary filter 22 also increases the filtration area and improves the filtration effect.

[0025] A photocatalyst layer 311 is provided on the air intake plate 31 on the air intake side. By placing the photocatalyst layer 311 on the air intake plate 31, ultraviolet rays can easily pass through the air intake cylinder 2 and irradiate the photocatalyst layer 311, giving full play to the function of the photocatalyst layer 311, decomposing harmful gases such as formaldehyde into water and carbon dioxide, thereby effectively removing harmful gases in the room.

[0026] The surface of the partition plate 33 is provided with an activated carbon adsorption layer 331, one side of which extends towards the airflow channel 34 to contact the inner wall of the purification chamber 1. The activated carbon adsorption layer 331 is used to adsorb organic compounds such as formaldehyde, benzene, and radon, as well as odor molecules in the gas, and its extension into the airflow channel 34 increases the adsorption area.

[0027] The side wall of the purification chamber 1 is provided with an installation groove for the other side of the partition plate 33 to pass through. The other side of the partition plate 33 passes through the installation groove and is provided with an installation plate 332. The installation plate 332 is provided with fixing bolts 333 for connecting to the purification chamber 1. The partition plate 33 is movably installed in the purification chamber 1 through the installation plate 332. When the activated carbon adsorption layer 331 reaches saturation, the partition plate 33 is removed from the installation groove, thereby facilitating the replacement and cleaning of the activated carbon adsorption layer 331 to ensure adsorption efficiency.

[0028] The air outlet plate 32 is equipped with a plasma generator 322 and a fan 323. The plasma generator 322 generates positive ions, negative ions, and trace amounts of ozone, which fill the internal space of the multi-stage purification device and the external environment. When the positive and negative ions neutralize in the air, they release energy, destroying the bacterial cell membrane structure and achieving efficient sterilization; at the same time, ozone can decompose organic pollutants.

[0029] The low-resistivity PTFE membrane 42 has a hydrophobic graphene layer 44 on its air inlet side and a hydrophilic nonwoven fabric layer 45 on its air outlet side. The hydrophobic graphene layer 44 improves the strength, corrosion resistance, and thermal conductivity of the low-resistivity PTFE membrane 42, reduces cracking caused by thermal expansion, improves the durability of the low-resistivity PTFE membrane 42, and prevents moisture in the air from remaining on the surface of the low-resistivity PTFE membrane 42 and affecting the filtration effect. The hydrophilic nonwoven fabric layer 45 is used to adsorb moisture in the air, increase the capillary pumping capacity, and enable the moisture in the air to continuously and stably vaporize at a high rate, thus drying the airflow.

[0030] The parts of this utility model not described in detail are existing technologies and therefore will not be specifically described here.

Claims

1. A multi-stage purification apparatus containing a low-polymerization-resistant polytetrafluoroethylene film, characterized by: The utility model provides a kind of air purification device, including purification bin (1), the upper of purification bin (1) is equipped with air inlet cylinder (2), the side of air inlet cylinder (2) is uniformly equipped with air inlet groove (21), the inside of purification bin (1) is equipped with air inlet plate (31), air outlet plate (32) and multiple partition plates (33), the airflow passage (34) is formed between the side of partition plate (33) and the inner wall of purification bin (1), and purification plate (4) is equipped between adjacent partition plates (33), and the hollow groove that is staggered distribution with airflow passage (34) is equipped on purification plate (4), hollow groove is equipped with antistatic layer (41), low-resistance polytetrafluoroethylene film (42) and glass fibre layer (43) in sequence along the direction of airflow.

2. A multi-stage purification device containing low-resistance polytetrafluoroethylene film according to claim 1, characterized in that: The inner wall of the air inlet cylinder (2) is provided with an annular primary filter screen (22), and the surface of the primary filter screen (22) is in a folded state.

3. A multi-stage purification device containing low-resistance polytetrafluoroethylene film according to claim 1, characterized in that: The air inlet plate (31) is provided with a photocatalyst layer (311) on the air inlet side.

4. A multi-stage purification device containing low-resistance polytetrafluoroethylene film according to claim 1, characterized in that: The surface of the partition plate (33) is provided with an activated carbon adsorption layer (331), and one side of the activated carbon adsorption layer (331) extends to the inner wall of the purification bin (1) in the airflow passage (34).

5. A multi-stage purification device containing low-resistive polytetrafluoroethylene film according to claim 4, characterized in that: The side wall of the purification bin (1) is provided with a mounting groove for the other side of the partition plate (33), and the other side of the partition plate (33) passes through the mounting groove and is provided with a mounting plate (332), and the mounting plate (332) is provided with a fixing bolt (333) connected with the purification bin (1).

6. A multi-stage purification device containing low-resistance polytetrafluoroethylene film according to claim 1, characterized by: The air outlet plate (32) is provided with a plasma generator (322) and a fan (323).

7. A multi-stage purification device containing low-resistance polytetrafluoroethylene film according to claim 1, characterized by: The air inlet side of the low-resistance polytetrafluoroethylene film (42) is provided with a hydrophobic graphene layer (44), and the air outlet side of the low-resistance polytetrafluoroethylene film (42) is provided with a hydrophilic non-woven fabric layer (45).

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