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In what aspects does the high-efficiency filter in the clean area intercept and filter?
In what aspects does the high-efficiency filter in the clean area intercept and filter?Recently, many customers have visited and asked for high-efficiency filters in clean areas. However, some customers do not know much about them and only know that they are "advanced filters." High-efficiency air filters are widely used and are now widely used in precision laboratories and pharmaceutical production. , atomic research and surgery, and other places that require high cleanliness. Specific product knowledge Changrui air filter manufacturer will explain to you one by one:Clean area high-efficiency filters filter through 4 forms: interception, gravity, airflow, and van der Waals forces: 1. The interception mechanism is what everyone commonly understands as a sieve. Generally, large particles of 5 μm and 10 μm are intercepted and “sieved” down. 2. Under the influence of gravity, dust particles with small size and high-density decrease in speed when passing through Hepa, and naturally settle on the Hepa filter like sediment sinking to the bottom of a river. 3. The uneven weaving of the filter creates a large number of air vortices, and small particles are adsorbed on the Hepa filter under the action of the airflow cyclone. 4. The ultrafine particles make Brownian motion hit the hepa fiber layer and are purified under the influence of van der Waals force. For example, virus carriers below 0.3 μm are purified under the influence of this force. How often should the high-efficiency filter in the clean area be replaced? The core indicator for judging the service life of the filter is the dust-holding capacity. The core data that affects the dust-holding capacity is the extended area of the filter. The larger the extended area of the filter, the higher the dust-holding capacity and the more durable the filter. The dust holding capacity refers to the amount of dust accumulated when the resistance due to dust accumulation reaches a specified value (generally twice the initial resistance) under a certain air volume. (If you find it too troublesome, generally a few days of high-efficiency filter can be used for 6-12 months, depending on the local air quality) |
