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High efficiency air filter analysis
High efficiency air filter analysisI. Classification of high-efficiency filtersHigh-efficiency filters can be roughly divided into two categories: high-efficiency filters with partitions and high-efficiency filters without partitions, and then subdivided into high-efficiency filters with partitions, high-temperature resistant high-efficiency filters, high humidity resistant high-efficiency filters; high-efficiency filters without partitions can also be subdivided into: combined high-efficiency filters, high-efficiency filters without partitions, ultra-low resistance high-efficiency filters without partitions, etc. II. High-efficiency filter with partition The standard thickness of partitioned high-efficiency filters can be divided into 160, 230, and 300 mm, of which 230 mm is the thickness we often use in China. Because of the large air volume, compared with the standard air volume, the filter material area is large, which is more suitable for use in places with large air volume requirements. Then for the design of new systems, the high air volume type also reduces the number of products used and the installation space. For systems already in use, assuming we replace the standard type with a large air volume product, we can also effectively reduce the resistance of the system to achieve the advantages of energy saving and environmental protection, extend the replacement cycle and reduce cost wastage. The role of spacer paper in HEPA filters The filter media of high-efficiency filters with partitions is formed by special automatic equipment, and a variety of materials and sizes of outer frames are available. III. High-efficiency fiber filters The filter mesh in the high-efficiency fiber filter is one of its key points, using the filter media of bundled fibers, the diameter of the bundled fiber filter media ranges from a few microns to tens of microns and has a large specific surface area, strong ability to adsorb pollutants and small filtration resistance, effectively solving the problems of poor filtration efficiency of ordinary granular filter media, restricted by the diameter of the filter media particles and large filtration resistance, effectively improving the filtration precision, filtration efficiency, and dirt-holding capacity. |
