Vacuum pump for plasma sterilization system

Sterilization is the heat and humidity in the form of saturated steam under pressure. The purpose is to expose each item directly to steam at the required temperature and pressure for a specified period of time to destroy microorganisms that may contaminate the product or container.

EVP uses vacuum in four main disinfection types: steam disinfection, hydrogen peroxide plasma disinfection, ethylene oxide disinfection and formaldehyde gas disinfection. Our vacuum pump system optimizes production with high reliability and energy efficiency.

There are many kinds of disinfection and sterilization equipment, from the kitchen disinfection cabinet of ordinary people’s home to the specialized sterilization and sterilization equipment of professional research institute. A variety of sterilization equipment uses a variety of sterilization methods and principles to meet the requirements of different occasions and sterilization requirements.

In a variety of sterilization equipment, the common use of vacuum applications to help sterilization equipment, such as “pulsating vacuum disinfection cabinet” and “plasma sterilizer”. These two kinds of sterilization equipment have their own characteristics and limitations. Pulsating vacuum disinfection uses high-pressure steam and vacuum to effectively kill bacteria and microorganisms. However, for some heat sensitive equipment that is not resistant to humidity and high temperature, hydrogen peroxide plasma sterilization is often used. Which vacuum pump should be selected for the vacuum sterilization cabinet?

Looking at the history of sterilization technology, we can easily find that there are two important elements of modern sterilization: steam and vacuum,

High pressure steam is still the most efficient sterilization method at present, and vacuum is conducive to better penetration of steam through the sterilized goods, so that the sterilization effect and speed are greatly improved!


Vacuum pump application:

The vacuum application of the whole pulsation sterilization cabinet in the operation process is mainly divided into two parts:

The first part is the pulsating pre vacuum process. Before sterilization, the vacuum pump will extract the air in the sterilization room for many times, fill it with steam, and then vacuumize it for many times. Generally, it needs to extract air for 3-6 times before sterilization to make the vacuum degree in the cavity reach -0.08 ~ -0.09mpa

The second part is the vacuum dehumidification drying process, which is to remove the high-temperature steam in the sterilization room after the completion of high-pressure steam sterilization to ensure that the sterilized articles are dry and clean.

According to the actual chamber sizes of various pulsating vacuum sterilization cabinets, two-stage oil lubricated rotary vane pump and dry claw pump can be used. Because the chamber is full of a large number of high-pressure water vapor during the whole sterilization process, a set of cold and hot separation device shall be equipped to separate the water vapor before the gas in the sterilization chamber is extracted to the vacuum pump, and the separated water can return to the steam generation Device.

The vacuum application of hydrogen peroxide plasma sterilizer is mainly used in the pre vacuum stage before sterilization and the repeated vacuumizing application to help hydrogen peroxide vacuum sublimation in the sterilization process. The required limit vacuum is generally 0.5mbar. SV series rotary vane vacuum pump can be used for matching.

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