News and Information

Return to list

How to choose an ozone generator and what are the design considerations?

2021-05-10

How to choose an ozone generator and what are the design considerations?

When selecting an ozone generator, pay attention to the following: First, check whether the connector of the ozone-generating tube is made of a flame-retardant material—normally, it should be polytetrafluoroethylene. Some manufacturers use ordinary plastics, which not only have a short lifespan but are also prone to breakdown. Next, examine the cooling method. If heat dissipation is inadequate, the ozone concentration will drop significantly after just one or two hours of operation—this effect is particularly pronounced in small ozone generators. Third, for ozone-generating tubes of the same volume, the greater the number of grams of ozone produced indicates that the manufacturer has advanced technology, resulting in lower costs and more affordable prices. Fourth, most people buy ozone generators for water treatment and disinfection purposes. Therefore, the choice of aeration device is crucial. Some people think that any type of diffuser will do, but in reality, the ozone generated won't dissolve fully, leading to unnecessary waste. Ozone is an allotrope of oxygen and serves as a powerful oxidizing agent. Its effectiveness in reducing pesticide residues and eliminating bacteria is 1.5 times that of chlorine, and its bactericidal speed is 600 to 3,000 times faster than chlorine. At room temperature, ozone naturally decomposes into oxygen within a decay period ranging from 15 to 25 minutes. In water, however, ozone rapidly transforms into "ecological oxygen" without leaving any residual traces. Ozone is an efficient and rapid disinfectant and pesticide remover. It can quickly break down pesticide residues and swiftly eliminate bacteria and viruses within a short time. Regarding the air cleanliness requirements for sterile pharmaceutical production environments: To meet these requirements, what kind of purification and sterilization process should we choose? Currently, there are four main sterilization methods available, among which ozone sterilization is an important one. However, no matter which disinfection method is used, it must comply with the above-mentioned regulations—and ozone sterilization is no exception. As a disinfectant that replaces traditional methods, ozone demands stricter standards yet offers greater convenience and ease of implementation; otherwise, it would be difficult to gain widespread acceptance.


　　The design conditions for the ozone generator are as follows:


　　1) Temperature: The ozone generator is designed to operate within an ambient temperature range of 0–40℃.


　　2) Humidity: The ozone generator is designed for relative humidity < 90%.


　　3) Cooling water: For ozone generators that use water for cooling, the cooling water temperature should be ≤ 30℃. Typically, the factory’s circulating cooling water can be used as the cooling medium for the ozone generator.


　　4) Atmospheric pressure: The ozone generator is designed for standard atmospheric pressure, which is 101.3 kPa.


　　5) Gas source requirements: The gas source used by the ozone generator must have a dew point ≤ -45℃.


　　6) Power requirements: For standard ozone generators, a 220V/1-phase/50Hz power supply or a 380V/3-phase/50Hz power supply is typically used.

Previous:

Introduction to Ozone and Key Considerations for Ozone Generators

Next:

What are the actual appearance and welding requirements for ultraviolet sterilizers in practical use?