The air filter cartridge is a device used for air filtration, widely applied in fields such as air purification, dust removal, and precise air filtration. Its classification and technical parameters can be elaborated upon from multiple dimensions.
I. Classification of Air Filter Cartridges
By Filtration Principle:
Mechanical Filtration: Primarily relies on the physical barrier function of the air filter cartridge. Impurities in the air, including dust, pollen, odors, and harmful particles, are filtered out through the filter grid's filtration effect.
Electrical Filtration: Utilizes electrostatic adsorption or ionization methods to ionize harmful substances in the air through the machine's electrostatic field or electric ionizer, and then collects them on the filter screen with a charge band, achieving the purpose of purifying the air.
By Material:
Glass Fiber Filter Cartridge: Features high temperature resistance, good dimensional stability, and high tensile breaking strength, but has relatively poor folding endurance.
Polyester Filter Cartridge: Made of polyester non-woven bonded filter media, which undergoes hot roller pressing, heat setting, and water-and-oil-proof saturation treatment. It has a compact microporous structure and high filtration efficiency for tiny particles.
Other Material Filter Cartridges: Such as PPS fiber filter cartridges and corundum filter cartridges, each with unique properties and application scenarios.
By Filtration Efficiency:
Coarse Efficiency Filter Cartridge: With relatively low filtration accuracy, suitable for preliminary or prefiltration.
Medium Efficiency Filter Cartridge: Moderate filtration accuracy, suitable for general air purification needs.
Fine Efficiency Filter Cartridge: High filtration accuracy, capable of filtering out even tinier particles, like HEPA (High-Efficiency Particulate Air) filters.
By Structural Form:
Pleated Filter Cartridge: The filter material is installed in a pleated form within the cartridge body, offering a larger filtration area and higher filtration efficiency.
Cartridge-type Filter Cartridge: The filter material is directly wound around the cartridge body, with a relatively simple structure, suitable for various filtration needs.
II. Technical Parameters of Air Filter Cartridges
The technical parameters of air filter cartridges vary depending on factors such as product models, materials, and filtration efficiency. Here are some common technical parameters:
Filtration Accuracy: Typically expressed in microns (μm). Different materials have different filtration accuracies. For instance, HEPA filters can achieve a filtration accuracy of 0.3 microns.
Filtration Area: Indicates the size of the effective filtration area of the filter cartridge, usually measured in square meters (㎡). A larger filtration area generally results in higher filtration efficiency.
Filtration Efficiency: Denotes the filter cartridge's ability to remove particles from the air, typically expressed as a percentage (%). Different materials and structures exhibit different filtration efficiencies.
Material: Such as polyester fiber, glass fiber, PPS fiber, etc. Each material has distinct physical and chemical properties.
Operating Temperature: Specifies the temperature range within which the filter cartridge can function normally without damage or performance degradation. Different materials have different operating temperature ranges.
Other Parameters: Including resistance, dust holding capacity, service life, etc., which are also crucial indicators for evaluating filter cartridge performance.
It is essential to note that the above classifications and technical parameters are general descriptions. Specific products may vary depending on manufacturers, models, and other factors. When selecting an air filter cartridge, it is crucial to consider the specific application scenarios and requirements.
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