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Bag filter resistance parameters Efficiency different resistance different
Bag filter resistance parameters Efficiency different resistance differentThe resistance of a new bag-type medium-effect filter is called "initial resistance", and the resistance value corresponding to the end-of-life of the filter is called "final resistance", there are parameters of "final resistance" on the samples of some filters, and the air-conditioning engineers can also change the final resistance value of the original design of the product according to the site conditions. The air conditioning engineers can also change the final resistance value of the original design of the product according to the site conditions. In most cases, the final resistance of the filter at the site is 2-4 times the initial resistance:Primary, medium, and high-efficiency air filter general initial resistance (Pa): G3 (primary effect) 30~40; G4 (primary effect) 40~50; F5~F6 (intermediate effect) 70~90; F7~F8(high middle effect) 90~110; F9~H11 (sub-efficient) 110~150; H13 high-efficiency and ultra-high-efficiency 180 ~ 300; (the above values should not be too large, can choose the average) Recommended final resistance of primary, medium, and high-efficiency air filters (Pa). G3 (primary effect) 100~200; G4 (primary effect) 150~250; F5~F6(Intermediate effect) 250~300; F7~F8(high intermediate effect) 300~400; F9~H11(sub-efficient) 400~450; H13 high-efficiency and ultra-high-efficiency 400~600; (the above values should not be too large, the average value can be selected) To ensure the safe operation of the air filter, it is necessary to add a resistance monitoring device to each filtration section, and the final resistance should be determined by the instrument, the best way is to add a differential pressure gauge, and the final resistance alarm device should also be added. |
