An air purification device for volatile organic pollutants

Abstract

The invention discloses an air purification device for a volatile organic pollutant. The air purification device comprises a shell, a low-temperature plasma generator, a catalytic plate and a fan, wherein the low-temperature plasma generator, the catalytic plate and the fan are sequentially arranged in the shell; the low-temperature plasma generator and the fan are respectively connected with a power supply and a controller; a current sampling module connected with the controller is arranged between the low-temperature plasma generator and the power supply; the controller is respectively connected with the low-temperature plasma generator and the fan through a voltage controller and a blast volume controller, so that the low-temperature plasma generator and the fan synchronously run. The air purification device for the volatile organic pollutant, disclosed by the invention, has the advantages of being compact in structure, high in removal rate, good in purification effect, wide in application range, low in production cost and the like, thereby having good popularization and application values.

Description

technical field [0001] The invention belongs to the technical field of adsorption treatment of volatile organic pollutants VOCs, and in particular relates to an air purification device for volatile organic pollutants. Background technique [0002] Volatile organic compounds and microorganisms in indoor air are important culprits of respiratory diseases and trauma infections, and inhalable particulate matter in the air is also an important way for the pathogenesis and transmission of respiratory diseases. Moreover, the volatile organic gases such as benzene and formaldehyde released by the decoration materials used for house decoration are very serious to the poison of the human body. Therefore, it is very important to prevent the spread of various diseases and improve the quality of people's living environment through air purification and disinfection, especially the air purification and disinfection in public rooms. The purification of indoor air can be accomplished throug...

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Problems solved by technology

[0004] However, in the actual use process, it is found that the following technical problems still exist in the above two technical solutions for purifying volatile organic pollutants VOCs: 1. The above two papers use the same test bench, and the sources of ozone are high-voltage electrostatic fields , the amount of ozone produced when the high-voltage electrostatic field works normally is small, which cannot satisfy the ability of the coupled catalytic plate to degrade formaldehyde; only when its size is large enough, or the voltage is increased to a certain amount, or the discharge gap is reduced to a certain distance, the discharge shock A large amount of ozone will be released when the oxygen in the gap is penetrated and an obvious arcing phenomenon occurs, but at this time, nitrogen will also be ionized to produce a large amount of nitrogen oxides

According to the existing literature, this type of catalyst has no obvious removal effect on nitrogen oxides, and the diffusion of nitrogen oxides into the air will cause obvious harm to the human body, and electric field arcing will also cause corresponding electromagnetic interference to other electrical appliances, so high-voltage static electricity as The source of ozone generation is not suitable; 2. ZSM-5 molecular sieves are used in the above two papers. At present, the price of this molecular sieve is relatively high, and the average price of 100g is about 70 yuan, and the cost of large-scale use is relatively high; 3. The paper points out that within 3 minutes The air in the warehouse can be circulated once, that is, the passing air volume is 60m 3 / h, in this case, such a large air volume passing through such a narrow air duct will inevitably produce greater noise, and if the air volume is reduced to reduce noise, it may not be able to ensure sufficient formaldehyde removal effect; 4 In the above two papers Although not clearly stated, it can be inferred that its overall size is relatively large, with an overall length, width and height of about 0.5*0.15*0.15m 3 , reducing the size will still affect its formaldehyde removal efficiency; 5. The above two papers did not explain the removal effect of this purification module on other VOCs such as benzene and benzene series

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