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Air purifiers are classified according to the method of purification

日期:2020-09-22 22:20
浏览次数:20
摘要:According to the application field can be divided into: household air purifier, car air purifier (also known as car air purifier), medical air purifier, industrial air purifier and engineering air purifier. According to the way of purification, can be divided into the following: 1. Purification method: asymmetric plasma at low temperature. The low-temperature asymmetric plasma module forms an asymmetric plasma electric field through high voltage and high frequency pulse discharge, mak
According to the application field can be divided into: household air purifier, car air purifier (also known as car air purifier), medical air purifier, industrial air purifier and engineering air purifier. According to the way of purification, can be divided into the following:





1. Purification method: asymmetric plasma at low temperature. The low-temperature asymmetric plasma module forms an asymmetric plasma electric field through high voltage and high frequency pulse discharge, making a large number of plasmas in the air collide with each other step by step. Produce electrochemical reaction, the toxic and harmful gas and living virus, bacteria and other fast degradation, so as to kill virus, sterilization, smell, smoke elimination.





2. Purification method: chemical preparation. The main product is air freshener (perfume for car use), which is cheap, but can only cover up some odors, and under the action of the sun complex chemical reactions, become the new pollution inside the car, can not eliminate harmful gases.





3. Purification method: chemical decomposition. Main working principle is ionic implement ozone generator, its price is low, function is more than freshener, can increase the number of negative ions in the air and reduce the solid dust in the air, have sterilizing effect but to decompose formaldehyde and other harmful gas effect is not big. Ozone generator produces a large number of high concentration of ozone, in killing some viruses and bacteria at the same time may also kill human white blood cells, may lead to cancer, anion easy to absorb dust, thus adhere to the interior wall ceiling, leading to the interior car, especially light color car will gradually become gray black.





4. Purification method: adsorption and volatilization. [1] is a Chinese herbal medicine for medium purifier, price is low, have certain antibacterial function, but the Chinese herbal medicine under the solid basic not purifying effect, use of Chinese herbal medicine composition only tiny amounts of purifier, not only can't sterilization after saturated and easy to be bacteria breeding, replaced the filter involving the harmless treatment difficult.





5. Purification method: adsorption. Activated carbon filter, in a short time can absorb certain bacteria and dust and harmful gas, low price, can filter certain bacteria and dust have adsorption function, but no selective adsorption, the adsorption rate of water is 45%, generally after a month can reach the saturation state needs to be replaced. It can't be recycled. After reaching saturation, it is not only unable to kill bacteria, but also easy to become a breeding body of bacteria. The removal of the filter element also involves the difficulty of harmless disposal.





6. Purification method: multi-layer filtration. It is mainly a compound purifier with good filtration effect, which can significantly reduce the solid dust in the air, but its price is relatively high. Moreover, its filtration device needs to be replaced after a period of use, and it cannot be regenerated, which basically has no effect on harmful gas. More consumables, high cost. The removal of the filter element involves the difficulty of harmless disposal.





7. Purification method: catalysis and decomposition. Main catalytic purifier is light, can decomposition of harmful gases, prices are relatively low, but the light catalyst is still an experimental technology is not yet mature, photocatalytic must rely on ultraviolet light in sunlight to produce effect, use ultraviolet lamp is easy to damage, change frequently, ultraviolet ray, plastics have a harm to human body at the same time.





8. Purification method: filtration and adsorption. The hydrophobic silica molecular sieve is mainly used as the filtration medium. The effect is obvious. It can completely remove benzene, xylene, trichloromethane and so on