Preparation method of disinfection and sterilization mixed gas

Abstract

The invention discloses a disinfection and sterilization mixed gas preparation method which comprises 10%-35% of ethylene oxide, 0.1%-2% of chlorine dioxide, 0.1%-2% of phosphine, 50%-88% of carbon dioxide, 0.1%-3% of dichlorodifluoromethane and 0.1%-4% of brominated methane, and the specific operation steps are as follows: filling and converging ethylene oxide, chlorine dioxide and phosphine in a storage tank or a gas cylinder into the gas cylinder in proportion; vaporizing the liquid carbon dioxide into gas carbon dioxide; the method comprises the following steps: taking dichlorodifluoromethane and methane bromide according to a ratio, and vaporizing the dichlorodifluoromethane and the methane bromide into gas dichlorodifluoromethane and gas methane bromide; filling the vaporized gas carbon dioxide, the vaporized gas dichlorodifluoromethane and the vaporized gas brominated methane into a gas cylinder through filling confluence, so that the vaporized gas carbon dioxide, the vaporized gas dichlorodifluoromethane and the vaporized gas brominated methane are mixed with ethylene oxide, chlorine dioxide and phosphorane; and checking after complete mixing, and warehousing after qualification. Compared with the prior art, the sterilizing agent has the advantages of good sterilizing effect, safety, stability, environmental protection and no damage to articles.

Description

technical field [0001] The invention relates to the technical field of sterilization and disinfection, in particular to a method for preparing a mixed gas for disinfection and sterilization. Background technique [0002] In industrial production, it is necessary to disinfect the produced items. Now there are more and more gas disinfection applications. At present, there are many types of professional disinfection and sterilization gases on the market, with different disinfection and sterilization performances, including high, medium and low efficiency. The high concentration of high-efficiency disinfection and sterilization often affects the competitiveness of enterprises. At the same time, the existing products have low work efficiency, most of them are poisonous, and have certain corrosive and irritating odors, which are harmful to the disinfection and sterilization. The article has certain damage, can cause unnecessary loss, therefore, needs a kind of disinfection and ste...

AI Technical Summary

Problems solved by technology

[0002] In industrial production, it is necessary to disinfect the produced items. Now there are more and more gas disinfection applications. At present, there are many types of professional disinfection and sterilization gases on the market, with different disinfection and sterilization performances, including high, medium and low efficiency. The high concentration of high-efficiency disinfection and sterilization often affects the competitiveness of enterprises. At the same time, the existing products have low work efficiency, most of them are poisonous, and have certain corrosive and irritating odors, which are harmful to the disinfection and sterilization. There is a certain damage to the items, which will cause unnecessary losses. Therefore, there is an urgent need for a method for preparing a mixed gas for disinfection and sterilization to solve the above problems.