Large scale plasma purification equipment

NegotiableUpdate on 05/06

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Overview

The plasma in large-scale plasma purification equipment is composed of a large number of atoms, neutral atoms, excited state atoms, photons, and free radicals, but the charge numbers of electrons and positive ions must exhibit electrical neutrality, which is the meaning of "plasma". Plasma differs from solids, liquids, and gases in many aspects of conductivity and electromagnetic influence, hence it is also referred to as the fourth state of matter. Plasma can usually be divided into high-temperature plasma and low-temperature plasma based on its state, temperature, and ion density.

Product Details

Large scale plasma purification equipmentIn the process of plasma chemical reaction, the transfer of chemical energy by plasma is roughly as follows:

(1) Electric field+electrons → high-energy electrons

(2) High energy electrons+molecules (or atoms) → (stimulated atoms, stimulated groups, free groups) active groups

(3) Active groups+molecules (atoms) → products+heat

(4) Active groups+active groups → products+heat

From the above process, it can be seen that electrons first obtain energy from the electric field, and transfer the energy to molecules or atoms through excitation or ionization. The molecules or atoms that obtain energy are excited, while some molecules are ionized, thus becoming active groups; Afterwards, these active groups collide with molecules or atoms, as well as with each other, to generate stable products and heat. In addition, high-energy electrons can also be captured by substances with strong electron affinity such as halogens and oxygen, becoming negative ions. These negative ions have excellent chemical activity and play an important role in chemical reactions.

Large scale plasma purification equipmentPrecautions for use:

1. When the conditions are met, the purification efficiency of UV photolysis purification can reach over 99.9%.

2. Whether odorous substances can be decomposed depends on whether their chemical bond energy is lower than the energy of the provided UV photons.

3. If the total power of the provided UV photons is insufficient or the oxygen content is insufficient, some intermediate by-products will be generated due to cracking or oxidation, which will affect the purification efficiency. This is particularly evident for organic odorous substances with high concentrations of macromolecules.

4. The cracking reaction takes a very short time (<0.01s), while the oxidation reaction (see reaction ④) takes 2-3 seconds.

5. The long-term stability and high efficiency of UV photocatalytic purification require a reaction temperature of<70 ℃, a dust content of<100mg/m ³, and a relative humidity of<99%.