Method for disinfecting air and special-purpose equipment thereof

Abstract

The present invention discloses a sterilization and disinfection method to air by using high purity CO2, and a special appliance for implementing said method. The method includes: sodium chlorite solution with 1.8-2.5% concentration and dilute hydrochloric acid solution with 4-6 % concentration are added into vaporizer to react, at the same time, compressed air is continuous transported into vaporizer to react gasifying, high purity CO2 gas is produced and is carried out of vaporizer by incoming compressed air and dilution air, and is exhausted to space needing disinfection. CO2 gas prepared by the method has more than 99% purity, and ClO2 yield rate is more than 75%, at the same time, disinfectant amount and disinfection time can be regulated by actual need, and is transported to disinfection locale. The method has merits of high self-control level, strong safety, simple operation, stabile circulation, better effects on sterilization and removal smell removal, and can satisfy the need of air disinfection, refreshing in various locale.

Description

technical field [0001] The present invention relates to a disinfection method, in particular to a method of regularly and quantitatively delivering high-purity chlorine dioxide gas into the air so as to kill various germs in the air. The present invention also relates to special equipment for realizing the above method , belongs to the field of inorganic chemical technology. Background technique [0002] Chlorine dioxide is internationally recognized as a new generation of broad-spectrum powerful bactericidal disinfectant, high-efficiency oxidant and high-quality bleach. It is listed as an AI-level high-efficiency and safe disinfectant by the United Nations World Health Organization (WHO), and can be widely used in drinking water disinfection and sewage. processing and other fields. Due to the rapid sterilization of chlorine dioxide, good effect, no residue and no side effects, it is more and more recognized by people. In recent years, as people's awareness of environmenta...

AI Technical Summary

Problems solved by technology

[0003] In my country, there are many long-term air disinfection methods, such as chlorine, ozone, ultraviolet light, photocatalyst, peracetic acid, formaldehyde, etc., but due to these traditional disinfection methods, some of them have good effects, but they are expensive and inconvenient to use; Some are low in cost, but have poor bactericidal effects and residues. In particular, liquid disinfectants can only be sprayed, fumigated, etc., which are difficult to control and the effect is not very satisfactory.

With people's gradual understanding of chlorine dioxide, in recent years, some people have begun to use chlorine dioxide for air disinfection. Among them, some use chlorine dioxide generators. Due to the low purity of the gas, it is difficult to control timing and quantity. The unsafe problems that are easy to occur in the process cannot be avoided, so it is difficult to popularize and apply in the field of air disinfection

There is also a stable chlorine dioxide solution, but the method of use only stays on methods such as spraying, spraying, or natural volatilization. Due to poor uniformity, the atomization effect is not good, which not only affects the sterilization effect, but also affects the surrounding objects. It is easy to cause pollution or corrosion, and it is easy to irritate people's eyes and respiratory system. There are certain safety problems, and the promotion and use are subject to certain restrictions.

[0004] For the use of stable chlorine dioxide solution as the main raw material for air disinfection, the main problems at present are the same as the traditional sterilization and disinfection methods, which are simple, inefficient, and inconvenient to use. For air disinfection, the uniformity is poor, which cannot meet the quality requirements of sterilization and disinfection in various places, and improper control can easily cause unsafe factors

So far, there is no air disinfection method and equipment in China that uses chlorine dioxide to safely and effectively control sterilization and disinfection.

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