What are the categories of pollutants absorbed by air filters?
Release time:
2020-10-23
Air filterWhat are the categories of absorption pollutants? A stands for acid, B for base, C for condensable compounds, and D for dopant. In the early days, named after the trade name of the partition type high-efficiency remote filter, the corresponding filtration efficiency was 99.97%. AC fine is the standard dust for the performance test of filter and dust removal equipment specified in the United States. The following describes the classification of pollutants absorbed by air filters.
Generally speaking, air filters are widely used in other countries except China and Japan. The dust was collected from the road dust area of Guangguo Arizona. ASHRAE standard dust is made by mixing a certain amount of short fiber and carbon black in AC fine ash, which is usually used in chemical filter filtration tests.
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AC fine ash is used to measure the filtering effect of automotive chemical filters. Also, in this case the chemical filter aerosol is a relatively stable suspension of solid or liquid particles and a gas. Internationally, most people engaged in filtration theory research have participated in the activities of the Air Filter Soluble Air Belly Association, but those engaged in filtration applications of chemical filters are more inclined to gather in the HVAC industry.
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AFI is the American Air Filtration Association (air filter Institute) filtration efficiency test method, gravimetric method and colorimetric method are the earliest methods used by AFI, some people call the chemical filter AFI efficiency as AFI efficiency. If you see "AFI efficiency", you must judge whether it is weight efficiency or color comparison efficiency (dust spots). Air handling units, central air conditioning isAir filterThe most common place. Chemical filters are called air filters or chemical filters when they are used in central air conditioners and clean rooms; they are called air escape chemical filters when they are used in fire pond engines and small wall air compressors.
AMC is a general term for molecular contaminants in the semiconductor manufacturing industry. The efficiency of the low efficiency filter is obtained by weighting. ASHRAE efficiency is the efficiency measured by ASHRAE 52.1. It generally refers to the efficiency of the dust spot method, sometimes referred to as NBS efficiency and AFI efficiency. The B value is a commonly used parameter to describe the filtering effect of a liquid filter. Also known as filtration ratio. The B value is the reciprocal of the light transmittance, and the relationship between the B value and the filtration efficiency is: the filtration efficiency of the chemical filter = 1-1/BBU = 200, that is, one of the particles with a 200 particle size of 5mm is penetrated.
Fiber paper is a filter paper with wood fiber control (wood pulp) as the main raw material. Cement slurry filter paper is the most commonly used filter material in the manufacture of chemical filters. Chemical filters, chemical filters in the field of air conditioning.
Chemical filters generally refer to activated carbon filters, which are based on tiny dust as the core to concentrate other substances and increase other particles, which can only be detected by equipment. In filter testing, a CNC can be used to scan the filter and test the filter material.
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