Plasma air purifier is also called low temperature plasma exhaust gas purifier.
Under the overall design concept of electrocatalysis, this process is divided into three independent and mixed excitation systems: a microwave excitation region, a plasma excitation region, and a plate excitation region. Each excitation zone has its specific function, but in principle it has similarities.
The principle of low temperature plasma technology for treating pollutants is: under the action of an external electric field, a large number of energetic electrons generated by dielectric discharge bombard the pollutant molecules, causing them to ionize, dissociate and excite, and then trigger a series of complex The chemical reaction transforms complex macromolecular pollutants into simple small molecular substances, or toxic and harmful substances into harmless or low-toxic and low-toxic substances, so that the pollutants can be degraded and removed. Because the average energy of the electrons generated after ionization is 10ev, proper control of the reaction conditions can achieve chemical reactions that are difficult to achieve or slow in general, and become very fast. As a high-tech with a strong potential advantage in the field of environmental pollution treatment, plasma has attracted great attention from related disciplines at home and abroad.
Plasma air purifier adopts the design technology of adsorption-decomposition-carbonization centrifugal air extraction installation technology, and adopts the advantages of standard module design. It is a kind of purification equipment for dry treatment of organic waste gas. It changes the process technology of using activated carbon materials, no need to process raw materials, no special person responsible, no secondary pollution, easy replacement and maintenance.
Low-temperature plasma is the fourth state of matter after solid, liquid, and gaseous states. When the applied voltage reaches the discharge voltage of the gas, the gas is broken down to produce a mixture including electrons, various ions, atoms and free radicals. Although the electron temperature is high during the discharge, the temperature of the heavy particles is very low, and the whole system is in a low temperature state, so it is called low temperature plasma. Low-temperature plasma degradation of pollutants is the use of these electrons, free radicals and other active particles and pollutants in the exhaust gas, so that the pollutant molecules decompose in a very short time, and various subsequent reactions occur to achieve the degradation of pollutants purpose. Generally, a gas discharge will generate a plasma, and this discharge phenomenon is to separate one or more electrons from the gas principle or molecule through some mechanism to form a gas medium. This medium is called ionized gas. The electric field generates ionized gas, and the conduction current is formed. This phenomenon is called gas discharge. And this purification equipment technology is a principle of industrial waste gas treatment.