Ozone generator working principle? According to the ozone generation method, there are three main types of ozone generation technology in use: electrolysis, high-voltage corona discharge method, and ultraviolet irradiation.
1. PEM Electrolysis
PEM Electrolysis ozone output principle is the use of low-voltage DC conduction solid membrane electrodes of the positive and negative poles of the electrolysis of deionized water, water at the interface of the special anode solution in the form of proton exchange is separated into hydrogen and oxygen molecules, hydrogen from the cathode solution interface is directly discharged, oxygen molecules in the anode interface due to the high-density electric current generated by the electronic excitation and access to energy, and polymerization into ozone molecules. energy and polymerize into ozone molecules.
2. Corona discharge method
The principle of ozone output by corona discharge method is to place a dielectric (usually made of hard glass or ceramic as dielectric) between two parallel high-voltage electrodes, and maintain a certain discharge interval. And maintain a certain discharge gap, when the two poles into the high-voltage alternating current, in the discharge gap, the formation of uniform blue-violet corona discharge, air or oxygen through the discharge gap, oxygen molecules by the excitation of the electron to obtain energy and elastic collision with each other, polymerization into ozone molecules.
3.? UV irradiation type.
By ultraviolet irradiation.
Three, PEM electrolysis ozone generation technology advantages
PEM electrolysis ozone generator is based on pure water as raw material, is a solid precious metal polymer as the electrolyte, combined with the cation exchange mode, through the low-pressure electrolysis to obtain the ozone, do not need any auxiliary materials and additives, the output of the ozone concentration of up to 20% (weight ratio, 250-280mg The concentration of ozone produced is as high as 20% (250-280mg/L by weight). The output of ozone gas is accompanied by oxygen, without any secondary pollution. The traditional high-pressure discharge corona method ozone generator, air or oxygen as raw material, need to go through a number of pre-treatment. And through about 3600V high-frequency high-voltage discharge field to obtain ozone, the output of the highest concentration of ozone is not greater than 10%, the output of ozone gas accompanied by nitrogen, oxygen, nitrogen oxides and other impurities, nitrogen oxides for the non-decomposition of toxic carcinogenic substances.
PEM electrolytic ozone generator and corona discharge method ozone generator characteristics compared to the following narrative and Table 4 shows, it is easy to see that the PEM electrolytic ozone generator compared with the corona discharge method ozone generator, has certain advantages.
Corona discharge ozone generator using high-frequency (or medium-frequency) high-pressure discharge in the air or oxygen chamber output of ozone, the generator's core electrodes for the consumption type, if you do not take the air source and the working environment of the pretreatment and protection measures, the core electrodes of the life and the ozone output rate will be greatly reduced. The heat generated by the high-voltage discharge will directly affect the ozone output if cooling measures are not taken, and in serious cases, explosion may even occur (especially when an oxygen source is used), leading to fire and other accidents. Electromagnetic waves generated during high-voltage discharge will interfere with nearby precision instruments, affecting the normal use of instruments. PEM?Electrolysis ozone generator using low-frequency, low-pressure electrolysis of pure water to produce ozone, the generator's core electrode is non-consumptive, only to ensure that the electrolyte - pure water conductivity meets the requirements of the equipment can be a stable operation. The core electrode is imported from pure water, which itself has the function of circulating cooling, so there is no need to take additional cooling measures such as cooling. Low-voltage electrolysis does not generate electromagnetic waves or other interference, so it can be used with confidence even when working in laboratories or high-precision equipment rooms.From the above, PEM electrolysis ozone generator in the indicators and corona method ozone generator compared to have certain advantages, and in the water treatment and medical applications, PEM electrolysis ozone generator has a high dissolution efficiency, can prepare a high concentration of ozone water, easy to operate and safe operation and other advantages.