Recently, the epidemic broke out in Chengdu, and it was announced that it was rapidly entering a state of war. The severity of the epidemic has exceeded expectations, so we must deal with it in a spirit of 12 points. One of the newly diagnosed cases was a staff member of the school canteen. On December 8, Pidu District of Chengdu required all the staff and students in the medium risk area to take the initiative to accept nucleic acid testing and conduct home isolation, which caused a heated discussion.

Since the beginning of the epidemic, teachers and students are the key protection objects. From delaying the start of school, strictly testing after the epidemic situation improves, to adopting closed management in some schools, the importance of school epidemic prevention is self-evident. Such strict epidemic prevention measures, however, are still sparse. People can't help asking: during the epidemic period, under the premise of not affecting the teaching order, how can we maximize the health and safety of students and teachers?

At the beginning of the outbreak of the epidemic, the epidemic prevention expert group once proposed that in addition to wearing masks to avoid droplet transmission, preventing contact transmission is also an important link in epidemic prevention, especially in kindergartens and primary schools, where students are difficult to maintain a certain social distance. Therefore, in addition to the good habit of washing hands frequently, the necessary disinfection of the clothes and belongings of teachers, students and school staff has become a very critical step in the school epidemic prevention work.

In recent years, some schools have been installing UVC led disinfection cabinets to deeply disinfect students' clothes and articles. So, how to design the disinfection cabinet in this kind of campus to ensure the disinfection effect without causing harm to human body?

In May this year, XXX customized disinfection lockers for Changzhi xiaoxiangwan kindergarten as an example.

Considering the disinfection demand and safety of kindergarten, the disinfection cabinet has the following requirements:

1. Sterilization scope: sterilize and disinfect the air in the cabinet and the articles placed

2. Killing efficiency: 99%

3. Killing time: 7:00-19:00

4. Use environment: temperature between - 10 ℃ and 40 ℃, humidity between 20% and 90% RH

5. Safety requirements: UVC module automatically closes when the cabinet door is opened; UVC module automatically opens when the cabinet door is closed; low voltage DC power supply is used to prevent electric shock

6. Installation and maintenance: UVC module is installed by snap fit, easy to install and maintain

According to the requirements and actual situation of xiaoxiangwan kindergarten in Changzhi, XXX company gives the corresponding solutions

1. Power supply and intelligent control

The top left corner cabinet is used as a special power supply cabinet, with a power distribution box and a built-in power supply and time control switch. The top of each cabinet is equipped with ultraviolet disinfection lamp and intelligent control switch.

2. UVC module configuration and irradiance

Eight UVC lamp beads are placed on the front of UVC module, and the simulation is carried out according to the minimum irradiance value on the bottom of the cabinet. The average irradiance value is 10.45 μ w / cm2

3. Sterilization efficiency

·Air sterilization

Sterilization efficiency of Staphylococcus albus: 99%

Time required: 9.12 min

·Object surface sterilization

Sterilization efficiency of Escherichia coli: 99%

Time required: 10.53 min

In addition, for the campus disinfection system, such as drinking water, air and lighting disinfection products, XXX company also has layout, and will launch more and more perfect campus disinfection system solutions in the future.

Through the measures taken by Changzhi xiaoxiangwan kindergarten, it can be seen that disinfection is an essential link to reduce the risk of campus infection, and UVC is the best choice Led disinfection, as a kind of disinfection method with high safety factor and efficiency, is undoubtedly the most suitable choice at present. If this kind of epidemic prevention measures can be popularized, students' daily epidemic prevention work will be more perfect, and people will have a little more to worry about the next time they encounter campus cases. In general, the campus epidemic prevention can not be lax, in the control of overseas input at the same time, daily disinfection work is also indispensable, only many aspects of protection, unite as one, can win the new crown as soon as possible!

In the face of the new epidemic situation, major enterprises actively develop and launch UVC led disinfection products, and UVC industry has attracted more attention.