Structural Division Of Ozone Generators

Ozone generators can be classified into two types based on their structure: gap discharge (DBD) and open-type. The characteristic of a gap discharge generator is that ozone is generated within the gap between the inner and outer electrodes. This allows for concentrated ozone collection and output at higher concentrations, suitable for applications such as water treatment. In an open-type generator, the electrodes are exposed to the air, and the generated ozone diffuses directly into the air. Due to its lower ozone concentration, it is typically only used for air sterilization in smaller spaces or for disinfecting the surfaces of small items. Gap discharge generators can be used as an alternative to open-type generators, but their cost is significantly higher.

Based on the cooling method, ozone generators can be classified into water-cooled and air-cooled types. Ozone generators generate a large amount of heat during operation, requiring cooling; otherwise, the ozone will decompose simultaneously due to the high temperature. Water-cooled generators offer good cooling, stable operation, no ozone decay, and can operate continuously for extended periods, but their structure is more complex and their cost is slightly higher. Air-cooled generators have less ideal cooling, and ozone decay is significant. High-performance ozone generators with stable overall performance are usually water-cooled. Air cooling is generally only used in low- to mid-range ozone generators with smaller ozone output. When selecting a generator, water cooling should be chosen whenever possible. Based on the dielectric material, common types include quartz tubes (a type of glass), ceramic plates, ceramic tubes, glass tubes, and enamel tubes. Currently, ozone generators made using various dielectric materials are available on the market, each with different performance characteristics. Glass dielectrics are low-cost and stable, and are one of the earliest materials used for artificial ozone production, but they have poor mechanical strength. Ceramic is similar to glass, but it is difficult to process, especially limiting its use in large ozone generators. Enamel is a new type of dielectric material, integrating the dielectric and electrode into one piece, resulting in high mechanical strength and precision machining capabilities. It is widely used in medium and large-sized ozone generators, but its manufacturing cost is high.