When we use the ultraviolet disinfection lamp, we will find that the ultraviolet disinfection lamp has discoloration, and many people will be confused about this. In fact, this is in the production process of the ultraviolet disinfection lamp. When the heating, exhausting, vacuuming and other processes are not perfect, there will be hydrogen residues, which will cause it to combine with mercury to deteriorate and pollute the electronic powder.
Why does the wall of the ultraviolet disinfection lamp appear discolored?
In addition, the soda-lime glass or high-lead glass used in the production of ultraviolet disinfection lamps contains a large amount of sodium. During the lighting process, sodium will precipitate from the glass tube and combine with mercury to become sodium amalgam and precipitate in the electronic powder. Cause the deterioration of the electronic powder, which will also appear discoloration.
Why does the wall of the ultraviolet disinfection lamp appear discolored?
If the new lamp tube changes color (yellow and black) during use, it is judged as a defective lamp.
The ultraviolet germicidal lamp can also be used to irradiate and disinfect the surface of the object, but the effective area of ultraviolet light disinfection is only 1.5~2m around the lamp. In specific operations, the light source should not be more than 1m away from the contaminant surface, and each contaminated surface of the disinfection object should be fully expanded under direct light. The radiation dose and time should be determined according to different indicators of microbial characteristics. Under normal circumstances, it can be Simply configure the lamp with a power equal to or higher than 2W/m2, and the irradiation time is 30~60min. When large objects in buildings, such as furniture, flat surfaces, and floors, need to be disinfected on a large area or on multiple sides, the application of ultraviolet disinfection lamps will be limited to some extent, and chemical disinfection is generally considered. However, when a certain part of a large item (such as a biochemical workbench, etc.) is often contaminated, a suspended ultraviolet germicidal lamp can be used for surface disinfection according to the design. In addition, due to operational limitations, mobile high-intensity ultraviolet lamps can also be temporarily used for surface disinfection. Power sockets should be prepared in appropriate locations on the design drawings. When using ultraviolet germicidal lamps to disinfect the surface of objects, it is still necessary to pay attention to the fact that ultraviolet rays should not directly hit the human body. When working under direct ultraviolet light due to special beads, the operator must take protective measures. When disinfecting the surface of small objects or instruments, some hospitals put it in a closed ultraviolet disinfection box. Common ultraviolet disinfection boxes are made of high-ozone-intensity ultraviolet germicidal lamps, which use the combined action of ultraviolet rays and ozone to sterilize. At the same time, ozone can also sterilize parts that are not irradiated by ultraviolet rays. The ozone concentration in the box is generally greater than or equal to 20mg/m3, and the relative humidity is greater than or equal to 70%. The use reflects the disinfection to obtain a good effect. It should be noted here that the power socket should be prepared according to the position of the disinfection box on the design drawing.
