Method for disinfecting air and special-purpose equipment thereof

A special equipment and air technology, applied in the direction of gasification substances, etc., can solve the problems of low gas purity, unsatisfactory effect, and unsafety, and achieve the effect of solving environmental pollution problems, ideal deodorization effect, and high level of self-control

Inactive Publication Date: 2008-08-13
佛山市爱普克斯环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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 me

Method used

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  • Method for disinfecting air and special-purpose equipment thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0027] Example 1

[0028] Using positive pressure gasification method, through the metering control system (metering pump 2 and metering pump 5), the concentration of 2.0% NaClO 2 The solution and hydrochloric acid with a concentration of 4% are added to the vaporizer 9 at a molar ratio of 1:3.87 to react, and the reaction temperature is controlled to 28°C. At the same time, compressed air is continuously delivered to the vaporizer through the air input device , Control the gas-liquid ratio to 18.5:1, the high-purity chlorine dioxide gas generated by gasification is carried out by the introduced compressed air and dilution air through the duct 12, and discharged to a volume of 103m 3 Air disinfection is carried out in a certain karaoke room (the separated waste liquid will be sent to the solution tank 7 regularly for centralized disposal and discharge). After 60 minutes of disinfection, samples were taken according to the following method: FA-1 impact air microbial sampler was use...

Example Embodiment

[0030] Example 2

[0031] Using positive pressure gasification method, through the metering control system (metering pump 2 and metering pump 5), the concentration of 2.5% NaClO 2 The solution and dilute hydrochloric acid with a concentration of 6% are added to the gasifier 9 at a molar ratio of 1:3.5 to react, and the reaction temperature is controlled to 26°C. At the same time, compressed air is continuously delivered to the gasifier through an air input device , The gas-liquid ratio is controlled to be 23.0:1, the high-purity chlorine dioxide gas generated by gasification is carried out by the introduced compressed air and dilution air through the duct 12, and discharged to a volume of 30m 3 Air disinfection was carried out in the employee dormitory of a certain factory (the separated waste liquid in the vaporizer was sent to the solution tank 7 regularly for centralized treatment and discharge), and the sample was sampled after 60 minutes of disinfection (the sampling method i...

Example Embodiment

[0033] Example 3

[0034] Using positive pressure gasification method, through the metering control system (metering pump 2 and metering pump 5), the NaClO concentration of 1.8% 2 The solution and hydrochloric acid with a concentration of 4% are added to the vaporizer 9 at a molar ratio of 1:3.93 to react, and the reaction temperature is 26°C. At the same time, compressed air is continuously delivered to the vaporizer through an air input device to control The gas-liquid ratio is 17.6:1. The high-purity chlorine dioxide gas generated by gasification is taken out through the duct 12 by the introduced compressed air and dilution air, and discharged to a volume of about 300m 3 Air disinfection was performed in the fever clinic of a certain hospital (the separated waste liquid in the vaporizer was sent to the solution tank 7 regularly for centralized treatment and discharge), and sampling was performed after 60 minutes of disinfection (the sampling method was the same as that in Examp...

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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...

Claims

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Application Information

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IPC IPC(8): A61L9/015A61L101/06
Inventor 赖立克陈祥衡梁乃棉赖亮段建国丁勇林殷梦华
Owner 佛山市爱普克斯环保科技有限公司
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