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Working principle
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Box filter Box filter is a common filter equipment, the following will be introduced in detail from its structure, principle, type, characteristics, and application fields: Structural composition Outer frame: usually using high-strength rust-proof galvanized sheet, aluminum frame, or polypropylene ABS plastic frame and other materials. For example, the medium efficiency box filter mainly uses a galvanized sheet or aluminum frame, and the large air volume sub-high efficiency box filter can use a polypropylene ABS plastic frame or metal frame, which can support and protect the internal filter material and ensure the structural stability of the filter. Filter material: standard composite fiber synthetic fiber, glass fiber, activated carbon non-woven filter material, ultra-fine glass fiber, and so on. The filtration performance and application scenarios of different filter materials are different, such as glass fiber filter materials have the advantages of high filtration efficiency and low resistance, and activated carbon non-woven filter materials are mainly used to remove odor and specific gases. Internal bracket: used to separate and support the filter material, so that the filter material maintains the correct position and shape, to ensure the stability of the filter effect. Some box filters are also equipped with sealant, which is used to seal the gap between the filter material and the outer frame, and the filter material and the filter material to prevent air leakage and ensure the effectiveness of filtration. Working principleInterception: When the air or liquid passes through the box filter, the fibers or pores in the filter material can intercept particles, dust, impurities, etc., which are larger than the aperture of the filter material, so that these substances are intercepted on the surface or inside the filter material, so as to achieve the purpose of filtration.Adsorption: Some box filters contain activated carbon and other adsorbent filter materials, they can also remove odors and harmful gases in the air through adsorption. Activated carbon has a huge specific surface area, and can absorb organic pollutants in the air, acidic gases, alkaline gases, etc., to further improve air quality. Type division Medium efficiency box filter: generally used in the central ventilation system of medium efficiency filtration, widely used in intelligent buildings, clean workshops, as a high-efficiency filter pre-filtration, suitable for variable air volume ventilation and air conditioning system, the use of composite synthetic fiber, glass fiber, activated carbon non-woven filter materials, etc., with strong structure, low resistance, large air volume, long service life, and other advantages. High air volume sub-high efficiency box filter: suitable for air conditioning units requiring high air volume, the end of high-efficiency filtration system, and the front end of ultra-high efficiency filtration system, widely used in optical electronics, biopharmaceutical, medical laboratories, food and beverage, and other industries, by several partitions strictly sealed, efficiency from F7 to H14. Box type activated carbon filter: The use of high adsorption carbon fiber or carbon felt as adsorption filter material, adsorption capacity is large, absorption and desorption speed, purification effect is good, mainly used to remove odor and low-density vapor phase pollutants, the outer frame and support frame can be reused, replace the filter, only replace the activated carbon material, can save costs. Performance characteristics High filtration efficiency: Suitable filter material and structural design can be selected according to different needs to achieve efficient filtration of different particle sizes, and the filtration efficiency can range from F5 to H14. Large dust capacity: the internal space is large, the filter material area is large, can accommodate more dust and impurities, extend the service life of the filter, reduce the replacement frequency, and reduce the maintenance cost. Low resistance: Reasonable structural design and high-quality filter material, so that the resistance of air or liquid through the filter is small, reducing the energy consumption of the fan or pump, and reducing the operating cost. Long service life: The use of high-strength materials and a reliable manufacturing process, so that the box filter has a long service life, while some filters can also be replaced with filter material, further improving its use of economic. Application field Air conditioning ventilation system: used for central air conditioning and centralized ventilation system filtration, remove dust, pollen, and bacteria in the air, improve indoor air quality, to provide people with a comfortable and healthy environment. Industrial production: In electronics, semiconductors, precision instruments, pharmaceuticals, food and beverage, and other industries, the cleanliness of the production environment is higher, box filter can be used as a high-efficiency filtration system pre-filtration or end filtration, to ensure that the production process is not polluted. Environmental protection field: used in the filtration process of sewage treatment, waste gas treatment, etc., to remove suspended matter, impurities in the water and particles in the waste gas, harmful gases, etc., to achieve the purpose of purifying the environment. Other areas: such as hospital operating rooms, wards, libraries, museums, and other places, can also use box filters to purify the air, to provide people with a healthy and comfortable environment. |
