It is mainly based on the short wavelength, high energy and strong penetration of ultraviolet rays. The ultraviolet rays in the solar rays are absorbed by the atmosphere to a limited extent, and are also prone to scattering and refraction. The energy of ultraviolet light is very easy to be absorbed by biomass, and protein will denature at 68 ℃. When the energy absorbed by ultraviolet light accumulates to a certain extent, protein begins to denature, causing cell wall rupture and cell necrosis. Because of its strong penetrability, when the surface biomass is necrotic, it will not stop, but will directly penetrate the nucleus to prevent the replication of RNA. The DNA is dead. What about the consequences? It is the combination of physical action and biological action. The donor ultraviolet ray is a physical action, and the receptor is a physiological action.

Breeding sterilization and disinfection equipment According to different lamps, there are thermal cathode low-pressure mercury vapor discharge lamps, cathode low-pressure mercury vapor discharge lamps; The hot cathode low-pressure mercury vapor discharge lamps can be divided into straight type, H-type, U-type tube, etc. from the appearance; For different needs, it can be divided into low (no ozone), ozone, high ozone, etc. Use portable Microwave electrodeless ultraviolet sterilization equipment The ultraviolet lamp suspension type irradiation can also be used for close distance mobile irradiation. Small articles can be irradiated in the ultraviolet disinfection box. Different kinds of microorganisms have different sensitivity to ultraviolet rays. When using ultraviolet rays for disinfection, the radiation dose must be used to reach the radiation dose required to kill the target microorganisms.

The product of the irradiation intensity and irradiation time of the ultraviolet lamp used for irradiation dose at the surface of the irradiated object. Therefore, according to the irradiation intensity of the ultraviolet light source, the required irradiation time can be calculated.

During the use, the surface of the ultraviolet lamp should be kept clean. Generally, it should be wiped with an alcohol cotton ball every two weeks. When dust and oil stains are found on the surface of the lamp tube, it should be wiped at any time. When disinfecting indoor air with ultraviolet lamp. The room shall be kept clean and dry to reduce dust and water mist. When the temperature is lower than 20 ℃ or higher than 40 ℃, and the relative humidity is greater than 60%, the exposure time shall be appropriately extended. When using ultraviolet ray to disinfect the surface of articles, the irradiated surface shall be directly exposed to ultraviolet ray, and the irradiation dose shall be sufficient; Do not expose the ultraviolet light source to people to avoid damage.